drivers/staging/slicoss/slicoss.c

   1 /**************************************************************************
   2  *
   3  * Copyright  2000-2006 Alacritech, Inc.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above
  12  *    copyright notice, this list of conditions and the following
  13  *    disclaimer in the documentation and/or other materials provided
  14  *    with the distribution.
  15  *
  16  * Alternatively, this software may be distributed under the terms of the
  17  * GNU General Public License ("GPL") version 2 as published by the Free
  18  * Software Foundation.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY ALACRITECH, INC. ``AS IS'' AND ANY
  21  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ALACRITECH, INC. OR
  24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  27  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  28  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  29  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  30  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  * The views and conclusions contained in the software and documentation
  34  * are those of the authors and should not be interpreted as representing
  35  * official policies, either expressed or implied, of Alacritech, Inc.
  36  *
  37  **************************************************************************/
  38
  39 /*
  40  * FILENAME: slicoss.c
  41  *
  42  * The SLICOSS driver for Alacritech's IS-NIC products.
  43  *
  44  * This driver is supposed to support:
  45  *
  46  *      Mojave cards (single port PCI Gigabit) both copper and fiber
  47  *      Oasis cards (single and dual port PCI-x Gigabit) copper and fiber
  48  *      Kalahari cards (dual and quad port PCI-e Gigabit) copper and fiber
  49  *
  50  * The driver was actually tested on Oasis and Kalahari cards.
  51  *
  52  *
  53  * NOTE: This is the standard, non-accelerated version of Alacritech's
  54  *       IS-NIC driver.
  55  */
  56
  57
  58 #define KLUDGE_FOR_4GB_BOUNDARY         1
  59 #define DEBUG_MICROCODE                 1
  60 #define DBG                             1
  61 #define SLIC_INTERRUPT_PROCESS_LIMIT    1
  62 #define SLIC_OFFLOAD_IP_CHECKSUM                1
  63 #define STATS_TIMER_INTERVAL                    2
  64 #define PING_TIMER_INTERVAL                         1
  65 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  66
  67 #include <linux/kernel.h>
  68 #include <linux/string.h>
  69 #include <linux/errno.h>
  70 #include <linux/ioport.h>
  71 #include <linux/slab.h>
  72 #include <linux/interrupt.h>
  73 #include <linux/timer.h>
  74 #include <linux/pci.h>
  75 #include <linux/spinlock.h>
  76 #include <linux/init.h>
  77 #include <linux/bitops.h>
  78 #include <linux/io.h>
  79 #include <linux/netdevice.h>
  80 #include <linux/crc32.h>
  81 #include <linux/etherdevice.h>
  82 #include <linux/skbuff.h>
  83 #include <linux/delay.h>
  84 #include <linux/seq_file.h>
  85 #include <linux/kthread.h>
  86 #include <linux/module.h>
  87 #include <linux/moduleparam.h>
  88
  89 #include <linux/firmware.h>
  90 #include <linux/types.h>
  91 #include <linux/dma-mapping.h>
  92 #include <linux/mii.h>
  93 #include <linux/if_vlan.h>
  94 #include <asm/unaligned.h>
  95
  96 #include <linux/ethtool.h>
  97 #include <linux/uaccess.h>
  98 #include "slichw.h"
  99 #include "slic.h"
 100
 101 static uint slic_first_init = 1;
 102 static char *slic_banner = "Alacritech SLIC Technology(tm) Server "
 103                 "and Storage Accelerator (Non-Accelerated)";
 104
 105 static char *slic_proc_version = "2.0.351  2006/07/14 12:26:00";
 106
 107 static struct net_device *head_netdevice;
 108
 109 static struct base_driver slic_global = { {}, 0, 0, 0, 1, NULL, NULL };
 110 static int intagg_delay = 100;
 111 static u32 dynamic_intagg;
 112 static unsigned int rcv_count;
 113
 114 #define DRV_NAME          "slicoss"
 115 #define DRV_VERSION       "2.0.1"
 116 #define DRV_AUTHOR        "Alacritech, Inc. Engineering"
 117 #define DRV_DESCRIPTION   "Alacritech SLIC Techonology(tm) "\
 118                 "Non-Accelerated Driver"
 119 #define DRV_COPYRIGHT     "Copyright  2000-2006 Alacritech, Inc. "\
 120                 "All rights reserved."
 121 #define PFX                DRV_NAME " "
 122
 123 MODULE_AUTHOR(DRV_AUTHOR);
 124 MODULE_DESCRIPTION(DRV_DESCRIPTION);
 125 MODULE_LICENSE("Dual BSD/GPL");
 126
 127 module_param(dynamic_intagg, int, 0);
 128 MODULE_PARM_DESC(dynamic_intagg, "Dynamic Interrupt Aggregation Setting");
 129 module_param(intagg_delay, int, 0);
 130 MODULE_PARM_DESC(intagg_delay, "uSec Interrupt Aggregation Delay");
 131
 132 static const struct pci_device_id slic_pci_tbl[] = {
 133         { PCI_DEVICE(PCI_VENDOR_ID_ALACRITECH, SLIC_1GB_DEVICE_ID) },
 134         { PCI_DEVICE(PCI_VENDOR_ID_ALACRITECH, SLIC_2GB_DEVICE_ID) },
 135         { 0 }
 136 };
 137
 138 MODULE_DEVICE_TABLE(pci, slic_pci_tbl);
 139
 140 static inline void slic_reg32_write(void __iomem *reg, u32 value, bool flush)
 141 {
 142         writel(value, reg);
 143         if (flush)
 144                 mb();
 145 }
 146
 147 static inline void slic_reg64_write(struct adapter *adapter, void __iomem *reg,
 148                                     u32 value, void __iomem *regh, u32 paddrh,
 149                                     bool flush)
 150 {
 151         spin_lock_irqsave(&adapter->bit64reglock.lock,
 152                                 adapter->bit64reglock.flags);
 153         if (paddrh != adapter->curaddrupper) {
 154                 adapter->curaddrupper = paddrh;
 155                 writel(paddrh, regh);
 156         }
 157         writel(value, reg);
 158         if (flush)
 159                 mb();
 160         spin_unlock_irqrestore(&adapter->bit64reglock.lock,
 161                                 adapter->bit64reglock.flags);
 162 }
 163
 164 static void slic_mcast_set_bit(struct adapter *adapter, char *address)
 165 {
 166         unsigned char crcpoly;
 167
 168         /* Get the CRC polynomial for the mac address */
 169         /* we use bits 1-8 (lsb), bitwise reversed,
 170          * msb (= lsb bit 0 before bitrev) is automatically discarded */
 171         crcpoly = (ether_crc(ETH_ALEN, address)>>23);
 172
 173         /* We only have space on the SLIC for 64 entries.  Lop
 174          * off the top two bits. (2^6 = 64)
 175          */
 176         crcpoly &= 0x3F;
 177
 178         /* OR in the new bit into our 64 bit mask. */
 179         adapter->mcastmask |= (u64) 1 << crcpoly;
 180 }
 181
 182 static void slic_mcast_set_mask(struct adapter *adapter)
 183 {
 184         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
 185
 186         if (adapter->macopts & (MAC_ALLMCAST | MAC_PROMISC)) {
 187                 /* Turn on all multicast addresses. We have to do this for
 188                  * promiscuous mode as well as ALLMCAST mode.  It saves the
 189                  * Microcode from having to keep state about the MAC
 190                  * configuration.
 191                  */
 192                 slic_reg32_write(&slic_regs->slic_mcastlow, 0xFFFFFFFF, FLUSH);
 193                 slic_reg32_write(&slic_regs->slic_mcasthigh, 0xFFFFFFFF,
 194                                  FLUSH);
 195         } else {
 196                 /* Commit our multicast mast to the SLIC by writing to the
 197                  * multicast address mask registers
 198                  */
 199                 slic_reg32_write(&slic_regs->slic_mcastlow,
 200                         (u32)(adapter->mcastmask & 0xFFFFFFFF), FLUSH);
 201                 slic_reg32_write(&slic_regs->slic_mcasthigh,
 202                         (u32)((adapter->mcastmask >> 32) & 0xFFFFFFFF), FLUSH);
 203         }
 204 }
 205
 206 static void slic_timer_ping(ulong dev)
 207 {
 208         struct adapter *adapter;
 209         struct sliccard *card;
 210
 211         adapter = netdev_priv((struct net_device *)dev);
 212         card = adapter->card;
 213
 214         adapter->pingtimer.expires = jiffies + (PING_TIMER_INTERVAL * HZ);
 215         add_timer(&adapter->pingtimer);
 216 }
 217
 218 static void slic_unmap_mmio_space(struct adapter *adapter)
 219 {
 220         if (adapter->slic_regs)
 221                 iounmap(adapter->slic_regs);
 222         adapter->slic_regs = NULL;
 223 }
 224
 225 /*
 226  *  slic_link_config
 227  *
 228  *  Write phy control to configure link duplex/speed
 229  *
 230  */
 231 static void slic_link_config(struct adapter *adapter,
 232                       u32 linkspeed, u32 linkduplex)
 233 {
 234         u32 __iomem *wphy;
 235         u32 speed;
 236         u32 duplex;
 237         u32 phy_config;
 238         u32 phy_advreg;
 239         u32 phy_gctlreg;
 240
 241         if (adapter->state != ADAPT_UP)
 242                 return;
 243
 244         if (linkspeed > LINK_1000MB)
 245                 linkspeed = LINK_AUTOSPEED;
 246         if (linkduplex > LINK_AUTOD)
 247                 linkduplex = LINK_AUTOD;
 248
 249         wphy = &adapter->slic_regs->slic_wphy;
 250
 251         if ((linkspeed == LINK_AUTOSPEED) || (linkspeed == LINK_1000MB)) {
 252                 if (adapter->flags & ADAPT_FLAGS_FIBERMEDIA) {
 253                         /*  We've got a fiber gigabit interface, and register
 254                          *  4 is different in fiber mode than in copper mode
 255                          */
 256
 257                         /* advertise FD only @1000 Mb */
 258                         phy_advreg = (MIICR_REG_4 | (PAR_ADV1000XFD));
 259                         /* enable PAUSE frames        */
 260                         phy_advreg |= PAR_ASYMPAUSE_FIBER;
 261                         slic_reg32_write(wphy, phy_advreg, FLUSH);
 262
 263                         if (linkspeed == LINK_AUTOSPEED) {
 264                                 /* reset phy, enable auto-neg  */
 265                                 phy_config =
 266                                     (MIICR_REG_PCR |
 267                                      (PCR_RESET | PCR_AUTONEG |
 268                                       PCR_AUTONEG_RST));
 269                                 slic_reg32_write(wphy, phy_config, FLUSH);
 270                         } else {        /* forced 1000 Mb FD*/
 271                                 /* power down phy to break link
 272                                    this may not work) */
 273                                 phy_config = (MIICR_REG_PCR | PCR_POWERDOWN);
 274                                 slic_reg32_write(wphy, phy_config, FLUSH);
 275                                 /* wait, Marvell says 1 sec,
 276                                    try to get away with 10 ms  */
 277                                 mdelay(10);
 278
 279                                 /* disable auto-neg, set speed/duplex,
 280                                    soft reset phy, powerup */
 281                                 phy_config =
 282                                     (MIICR_REG_PCR |
 283                                      (PCR_RESET | PCR_SPEED_1000 |
 284                                       PCR_DUPLEX_FULL));
 285                                 slic_reg32_write(wphy, phy_config, FLUSH);
 286                         }
 287                 } else {        /* copper gigabit */
 288
 289                         /* Auto-Negotiate or 1000 Mb must be auto negotiated
 290                          * We've got a copper gigabit interface, and
 291                          * register 4 is different in copper mode than
 292                          * in fiber mode
 293                          */
 294                         if (linkspeed == LINK_AUTOSPEED) {
 295                                 /* advertise 10/100 Mb modes   */
 296                                 phy_advreg =
 297                                     (MIICR_REG_4 |
 298                                      (PAR_ADV100FD | PAR_ADV100HD | PAR_ADV10FD
 299                                       | PAR_ADV10HD));
 300                         } else {
 301                         /* linkspeed == LINK_1000MB -
 302                            don't advertise 10/100 Mb modes  */
 303                                 phy_advreg = MIICR_REG_4;
 304                         }
 305                         /* enable PAUSE frames  */
 306                         phy_advreg |= PAR_ASYMPAUSE;
 307                         /* required by the Cicada PHY  */
 308                         phy_advreg |= PAR_802_3;
 309                         slic_reg32_write(wphy, phy_advreg, FLUSH);
 310                         /* advertise FD only @1000 Mb  */
 311                         phy_gctlreg = (MIICR_REG_9 | (PGC_ADV1000FD));
 312                         slic_reg32_write(wphy, phy_gctlreg, FLUSH);
 313
 314                         if (adapter->subsysid != SLIC_1GB_CICADA_SUBSYS_ID) {
 315                                 /* if a Marvell PHY
 316                                    enable auto crossover */
 317                                 phy_config =
 318                                     (MIICR_REG_16 | (MRV_REG16_XOVERON));
 319                                 slic_reg32_write(wphy, phy_config, FLUSH);
 320
 321                                 /* reset phy, enable auto-neg  */
 322                                 phy_config =
 323                                     (MIICR_REG_PCR |
 324                                      (PCR_RESET | PCR_AUTONEG |
 325                                       PCR_AUTONEG_RST));
 326                                 slic_reg32_write(wphy, phy_config, FLUSH);
 327                         } else {        /* it's a Cicada PHY  */
 328                                 /* enable and restart auto-neg (don't reset)  */
 329                                 phy_config =
 330                                     (MIICR_REG_PCR |
 331                                      (PCR_AUTONEG | PCR_AUTONEG_RST));
 332                                 slic_reg32_write(wphy, phy_config, FLUSH);
 333                         }
 334                 }
 335         } else {
 336                 /* Forced 10/100  */
 337                 if (linkspeed == LINK_10MB)
 338                         speed = 0;
 339                 else
 340                         speed = PCR_SPEED_100;
 341                 if (linkduplex == LINK_HALFD)
 342                         duplex = 0;
 343                 else
 344                         duplex = PCR_DUPLEX_FULL;
 345
 346                 if (adapter->subsysid != SLIC_1GB_CICADA_SUBSYS_ID) {
 347                         /* if a Marvell PHY
 348                            disable auto crossover  */
 349                         phy_config = (MIICR_REG_16 | (MRV_REG16_XOVEROFF));
 350                         slic_reg32_write(wphy, phy_config, FLUSH);
 351                 }
 352
 353                 /* power down phy to break link (this may not work)  */
 354                 phy_config = (MIICR_REG_PCR | (PCR_POWERDOWN | speed | duplex));
 355                 slic_reg32_write(wphy, phy_config, FLUSH);
 356
 357                 /* wait, Marvell says 1 sec, try to get away with 10 ms */
 358                 mdelay(10);
 359
 360                 if (adapter->subsysid != SLIC_1GB_CICADA_SUBSYS_ID) {
 361                         /* if a Marvell PHY
 362                            disable auto-neg, set speed,
 363                            soft reset phy, powerup */
 364                         phy_config =
 365                             (MIICR_REG_PCR | (PCR_RESET | speed | duplex));
 366                         slic_reg32_write(wphy, phy_config, FLUSH);
 367                 } else {        /* it's a Cicada PHY  */
 368                         /* disable auto-neg, set speed, powerup  */
 369                         phy_config = (MIICR_REG_PCR | (speed | duplex));
 370                         slic_reg32_write(wphy, phy_config, FLUSH);
 371                 }
 372         }
 373 }
 374
 375 static int slic_card_download_gbrcv(struct adapter *adapter)
 376 {
 377         const struct firmware *fw;
 378         const char *file = "";
 379         int ret;
 380         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
 381         u32 codeaddr;
 382         u32 instruction;
 383         int index = 0;
 384         u32 rcvucodelen = 0;
 385
 386         switch (adapter->devid) {
 387         case SLIC_2GB_DEVICE_ID:
 388                 file = "slicoss/oasisrcvucode.sys";
 389                 break;
 390         case SLIC_1GB_DEVICE_ID:
 391                 file = "slicoss/gbrcvucode.sys";
 392                 break;
 393         default:
 394                 return -ENOENT;
 395         }
 396
 397         ret = request_firmware(&fw, file, &adapter->pcidev->dev);
 398         if (ret) {
 399                 dev_err(&adapter->pcidev->dev,
 400                         "SLICOSS: Failed to load firmware %s\n", file);
 401                 return ret;
 402         }
 403
 404         rcvucodelen = *(u32 *)(fw->data + index);
 405         index += 4;
 406         switch (adapter->devid) {
 407         case SLIC_2GB_DEVICE_ID:
 408                 if (rcvucodelen != OasisRcvUCodeLen) {
 409                         release_firmware(fw);
 410                         return -EINVAL;
 411                 }
 412                 break;
 413         case SLIC_1GB_DEVICE_ID:
 414                 if (rcvucodelen != GBRcvUCodeLen) {
 415                         release_firmware(fw);
 416                         return -EINVAL;
 417                 }
 418                 break;
 419         }
 420         /* start download */
 421         slic_reg32_write(&slic_regs->slic_rcv_wcs, SLIC_RCVWCS_BEGIN, FLUSH);
 422         /* download the rcv sequencer ucode */
 423         for (codeaddr = 0; codeaddr < rcvucodelen; codeaddr++) {
 424                 /* write out instruction address */
 425                 slic_reg32_write(&slic_regs->slic_rcv_wcs, codeaddr, FLUSH);
 426
 427                 instruction = *(u32 *)(fw->data + index);
 428                 index += 4;
 429                 /* write out the instruction data low addr */
 430                 slic_reg32_write(&slic_regs->slic_rcv_wcs, instruction, FLUSH);
 431
 432                 instruction = *(u8 *)(fw->data + index);
 433                 index++;
 434                 /* write out the instruction data high addr */
 435                 slic_reg32_write(&slic_regs->slic_rcv_wcs, (u8)instruction,
 436                                  FLUSH);
 437         }
 438
 439         /* download finished */
 440         release_firmware(fw);
 441         slic_reg32_write(&slic_regs->slic_rcv_wcs, SLIC_RCVWCS_FINISH, FLUSH);
 442         return 0;
 443 }
 444
 445 MODULE_FIRMWARE("slicoss/oasisrcvucode.sys");
 446 MODULE_FIRMWARE("slicoss/gbrcvucode.sys");
 447
 448 static int slic_card_download(struct adapter *adapter)
 449 {
 450         const struct firmware *fw;
 451         const char *file = "";
 452         int ret;
 453         u32 section;
 454         int thissectionsize;
 455         int codeaddr;
 456         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
 457         u32 instruction;
 458         u32 baseaddress;
 459         u32 i;
 460         u32 numsects = 0;
 461         u32 sectsize[3];
 462         u32 sectstart[3];
 463         int ucode_start, index = 0;
 464
 465         switch (adapter->devid) {
 466         case SLIC_2GB_DEVICE_ID:
 467                 file = "slicoss/oasisdownload.sys";
 468                 break;
 469         case SLIC_1GB_DEVICE_ID:
 470                 file = "slicoss/gbdownload.sys";
 471                 break;
 472         default:
 473                 return -ENOENT;
 474         }
 475         ret = request_firmware(&fw, file, &adapter->pcidev->dev);
 476         if (ret) {
 477                 dev_err(&adapter->pcidev->dev,
 478                         "SLICOSS: Failed to load firmware %s\n", file);
 479                 return ret;
 480         }
 481         numsects = *(u32 *)(fw->data + index);
 482         index += 4;
 483         for (i = 0; i < numsects; i++) {
 484                 sectsize[i] = *(u32 *)(fw->data + index);
 485                 index += 4;
 486         }
 487         for (i = 0; i < numsects; i++) {
 488                 sectstart[i] = *(u32 *)(fw->data + index);
 489                 index += 4;
 490         }
 491         ucode_start = index;
 492         instruction = *(u32 *)(fw->data + index);
 493         index += 4;
 494         for (section = 0; section < numsects; section++) {
 495                 baseaddress = sectstart[section];
 496                 thissectionsize = sectsize[section] >> 3;
 497
 498                 for (codeaddr = 0; codeaddr < thissectionsize; codeaddr++) {
 499                         /* Write out instruction address */
 500                         slic_reg32_write(&slic_regs->slic_wcs,
 501                                          baseaddress + codeaddr, FLUSH);
 502                         /* Write out instruction to low addr */
 503                         slic_reg32_write(&slic_regs->slic_wcs, instruction, FLUSH);
 504                         instruction = *(u32 *)(fw->data + index);
 505                         index += 4;
 506
 507                         /* Write out instruction to high addr */
 508                         slic_reg32_write(&slic_regs->slic_wcs, instruction, FLUSH);
 509                         instruction = *(u32 *)(fw->data + index);
 510                         index += 4;
 511                 }
 512         }
 513         index = ucode_start;
 514         for (section = 0; section < numsects; section++) {
 515                 instruction = *(u32 *)(fw->data + index);
 516                 baseaddress = sectstart[section];
 517                 if (baseaddress < 0x8000)
 518                         continue;
 519                 thissectionsize = sectsize[section] >> 3;
 520
 521                 for (codeaddr = 0; codeaddr < thissectionsize; codeaddr++) {
 522                         /* Write out instruction address */
 523                         slic_reg32_write(&slic_regs->slic_wcs,
 524                                 SLIC_WCS_COMPARE | (baseaddress + codeaddr),
 525                                 FLUSH);
 526                         /* Write out instruction to low addr */
 527                         slic_reg32_write(&slic_regs->slic_wcs, instruction,
 528                                          FLUSH);
 529                         instruction = *(u32 *)(fw->data + index);
 530                         index += 4;
 531                         /* Write out instruction to high addr */
 532                         slic_reg32_write(&slic_regs->slic_wcs, instruction,
 533                                          FLUSH);
 534                         instruction = *(u32 *)(fw->data + index);
 535                         index += 4;
 536
 537                         /* Check SRAM location zero. If it is non-zero. Abort.*/
 538 /*                      failure = readl((u32 __iomem *)&slic_regs->slic_reset);
 539                         if (failure) {
 540                                 release_firmware(fw);
 541                                 return -EIO;
 542                         }*/
 543                 }
 544         }
 545         release_firmware(fw);
 546         /* Everything OK, kick off the card */
 547         mdelay(10);
 548         slic_reg32_write(&slic_regs->slic_wcs, SLIC_WCS_START, FLUSH);
 549
 550         /* stall for 20 ms, long enough for ucode to init card
 551            and reach mainloop */
 552         mdelay(20);
 553
 554         return 0;
 555 }
 556
 557 MODULE_FIRMWARE("slicoss/oasisdownload.sys");
 558 MODULE_FIRMWARE("slicoss/gbdownload.sys");
 559
 560 static void slic_adapter_set_hwaddr(struct adapter *adapter)
 561 {
 562         struct sliccard *card = adapter->card;
 563
 564         if ((adapter->card) && (card->config_set)) {
 565                 memcpy(adapter->macaddr,
 566                        card->config.MacInfo[adapter->functionnumber].macaddrA,
 567                        sizeof(struct slic_config_mac));
 568                 if (is_zero_ether_addr(adapter->currmacaddr))
 569                         memcpy(adapter->currmacaddr, adapter->macaddr,
 570                                ETH_ALEN);
 571                 if (adapter->netdev)
 572                         memcpy(adapter->netdev->dev_addr, adapter->currmacaddr,
 573                                ETH_ALEN);
 574         }
 575 }
 576
 577 static void slic_intagg_set(struct adapter *adapter, u32 value)
 578 {
 579         slic_reg32_write(&adapter->slic_regs->slic_intagg, value, FLUSH);
 580         adapter->card->loadlevel_current = value;
 581 }
 582
 583 static void slic_soft_reset(struct adapter *adapter)
 584 {
 585         if (adapter->card->state == CARD_UP) {
 586                 slic_reg32_write(&adapter->slic_regs->slic_quiesce, 0, FLUSH);
 587                 mdelay(1);
 588         }
 589
 590         slic_reg32_write(&adapter->slic_regs->slic_reset, SLIC_RESET_MAGIC,
 591                          FLUSH);
 592         mdelay(1);
 593 }
 594
 595 static void slic_mac_address_config(struct adapter *adapter)
 596 {
 597         u32 value;
 598         u32 value2;
 599         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
 600
 601         value = *(u32 *) &adapter->currmacaddr[2];
 602         value = ntohl(value);
 603         slic_reg32_write(&slic_regs->slic_wraddral, value, FLUSH);
 604         slic_reg32_write(&slic_regs->slic_wraddrbl, value, FLUSH);
 605
 606         value2 = (u32) ((adapter->currmacaddr[0] << 8 |
 607                              adapter->currmacaddr[1]) & 0xFFFF);
 608
 609         slic_reg32_write(&slic_regs->slic_wraddrah, value2, FLUSH);
 610         slic_reg32_write(&slic_regs->slic_wraddrbh, value2, FLUSH);
 611
 612         /* Write our multicast mask out to the card.  This is done */
 613         /* here in addition to the slic_mcast_addr_set routine     */
 614         /* because ALL_MCAST may have been enabled or disabled     */
 615         slic_mcast_set_mask(adapter);
 616 }
 617
 618 static void slic_mac_config(struct adapter *adapter)
 619 {
 620         u32 value;
 621         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
 622
 623         /* Setup GMAC gaps */
 624         if (adapter->linkspeed == LINK_1000MB) {
 625                 value = ((GMCR_GAPBB_1000 << GMCR_GAPBB_SHIFT) |
 626                          (GMCR_GAPR1_1000 << GMCR_GAPR1_SHIFT) |
 627                          (GMCR_GAPR2_1000 << GMCR_GAPR2_SHIFT));
 628         } else {
 629                 value = ((GMCR_GAPBB_100 << GMCR_GAPBB_SHIFT) |
 630                          (GMCR_GAPR1_100 << GMCR_GAPR1_SHIFT) |
 631                          (GMCR_GAPR2_100 << GMCR_GAPR2_SHIFT));
 632         }
 633
 634         /* enable GMII */
 635         if (adapter->linkspeed == LINK_1000MB)
 636                 value |= GMCR_GBIT;
 637
 638         /* enable fullduplex */
 639         if ((adapter->linkduplex == LINK_FULLD)
 640             || (adapter->macopts & MAC_LOOPBACK)) {
 641                 value |= GMCR_FULLD;
 642         }
 643
 644         /* write mac config */
 645         slic_reg32_write(&slic_regs->slic_wmcfg, value, FLUSH);
 646
 647         /* setup mac addresses */
 648         slic_mac_address_config(adapter);
 649 }
 650
 651 static void slic_config_set(struct adapter *adapter, bool linkchange)
 652 {
 653         u32 value;
 654         u32 RcrReset;
 655         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
 656
 657         if (linkchange) {
 658                 /* Setup MAC */
 659                 slic_mac_config(adapter);
 660                 RcrReset = GRCR_RESET;
 661         } else {
 662                 slic_mac_address_config(adapter);
 663                 RcrReset = 0;
 664         }
 665
 666         if (adapter->linkduplex == LINK_FULLD) {
 667                 /* setup xmtcfg */
 668                 value = (GXCR_RESET |   /* Always reset     */
 669                          GXCR_XMTEN |   /* Enable transmit  */
 670                          GXCR_PAUSEEN); /* Enable pause     */
 671
 672                 slic_reg32_write(&slic_regs->slic_wxcfg, value, FLUSH);
 673
 674                 /* Setup rcvcfg last */
 675                 value = (RcrReset |     /* Reset, if linkchange */
 676                          GRCR_CTLEN |   /* Enable CTL frames    */
 677                          GRCR_ADDRAEN | /* Address A enable     */
 678                          GRCR_RCVBAD |  /* Rcv bad frames       */
 679                          (GRCR_HASHSIZE << GRCR_HASHSIZE_SHIFT));
 680         } else {
 681                 /* setup xmtcfg */
 682                 value = (GXCR_RESET |   /* Always reset     */
 683                          GXCR_XMTEN);   /* Enable transmit  */
 684
 685                 slic_reg32_write(&slic_regs->slic_wxcfg, value, FLUSH);
 686
 687                 /* Setup rcvcfg last */
 688                 value = (RcrReset |     /* Reset, if linkchange */
 689                          GRCR_ADDRAEN | /* Address A enable     */
 690                          GRCR_RCVBAD |  /* Rcv bad frames       */
 691                          (GRCR_HASHSIZE << GRCR_HASHSIZE_SHIFT));
 692         }
 693
 694         if (adapter->state != ADAPT_DOWN) {
 695                 /* Only enable receive if we are restarting or running */
 696                 value |= GRCR_RCVEN;
 697         }
 698
 699         if (adapter->macopts & MAC_PROMISC)
 700                 value |= GRCR_RCVALL;
 701
 702         slic_reg32_write(&slic_regs->slic_wrcfg, value, FLUSH);
 703 }
 704
 705 /*
 706  *  Turn off RCV and XMT, power down PHY
 707  */
 708 static void slic_config_clear(struct adapter *adapter)
 709 {
 710         u32 value;
 711         u32 phy_config;
 712         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
 713
 714         /* Setup xmtcfg */
 715         value = (GXCR_RESET |   /* Always reset */
 716                  GXCR_PAUSEEN); /* Enable pause */
 717
 718         slic_reg32_write(&slic_regs->slic_wxcfg, value, FLUSH);
 719
 720         value = (GRCR_RESET |   /* Always reset      */
 721                  GRCR_CTLEN |   /* Enable CTL frames */
 722                  GRCR_ADDRAEN | /* Address A enable  */
 723                  (GRCR_HASHSIZE << GRCR_HASHSIZE_SHIFT));
 724
 725         slic_reg32_write(&slic_regs->slic_wrcfg, value, FLUSH);
 726
 727         /* power down phy */
 728         phy_config = (MIICR_REG_PCR | (PCR_POWERDOWN));
 729         slic_reg32_write(&slic_regs->slic_wphy, phy_config, FLUSH);
 730 }
 731
 732 static bool slic_mac_filter(struct adapter *adapter,
 733                         struct ether_header *ether_frame)
 734 {
 735         struct net_device *netdev = adapter->netdev;
 736         u32 opts = adapter->macopts;
 737
 738         if (opts & MAC_PROMISC)
 739                 return true;
 740
 741         if (is_broadcast_ether_addr(ether_frame->ether_dhost)) {
 742                 if (opts & MAC_BCAST) {
 743                         adapter->rcv_broadcasts++;
 744                         return true;
 745                 } else {
 746                         return false;
 747                 }
 748         }
 749
 750         if (is_multicast_ether_addr(ether_frame->ether_dhost)) {
 751                 if (opts & MAC_ALLMCAST) {
 752                         adapter->rcv_multicasts++;
 753                         netdev->stats.multicast++;
 754                         return true;
 755                 }
 756                 if (opts & MAC_MCAST) {
 757                         struct mcast_address *mcaddr = adapter->mcastaddrs;
 758
 759                         while (mcaddr) {
 760                                 if (ether_addr_equal(mcaddr->address,
 761                                                      ether_frame->ether_dhost)) {
 762                                         adapter->rcv_multicasts++;
 763                                         netdev->stats.multicast++;
 764                                         return true;
 765                                 }
 766                                 mcaddr = mcaddr->next;
 767                         }
 768                         return false;
 769                 } else {
 770                         return false;
 771                 }
 772         }
 773         if (opts & MAC_DIRECTED) {
 774                 adapter->rcv_unicasts++;
 775                 return true;
 776         }
 777         return false;
 778
 779 }
 780
 781 static int slic_mac_set_address(struct net_device *dev, void *ptr)
 782 {
 783         struct adapter *adapter = netdev_priv(dev);
 784         struct sockaddr *addr = ptr;
 785
 786         if (netif_running(dev))
 787                 return -EBUSY;
 788         if (!adapter)
 789                 return -EBUSY;
 790
 791         if (!is_valid_ether_addr(addr->sa_data))
 792                 return -EINVAL;
 793
 794         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
 795         memcpy(adapter->currmacaddr, addr->sa_data, dev->addr_len);
 796
 797         slic_config_set(adapter, true);
 798         return 0;
 799 }
 800
 801 static void slic_timer_load_check(ulong cardaddr)
 802 {
 803         struct sliccard *card = (struct sliccard *)cardaddr;
 804         struct adapter *adapter = card->master;
 805         u32 __iomem *intagg;
 806         u32 load = card->events;
 807         u32 level = 0;
 808
 809         if ((adapter) && (adapter->state == ADAPT_UP) &&
 810             (card->state == CARD_UP) && (slic_global.dynamic_intagg)) {
 811                 intagg = &adapter->slic_regs->slic_intagg;
 812                 if (adapter->devid == SLIC_1GB_DEVICE_ID) {
 813                         if (adapter->linkspeed == LINK_1000MB)
 814                                 level = 100;
 815                         else {
 816                                 if (load > SLIC_LOAD_5)
 817                                         level = SLIC_INTAGG_5;
 818                                 else if (load > SLIC_LOAD_4)
 819                                         level = SLIC_INTAGG_4;
 820                                 else if (load > SLIC_LOAD_3)
 821                                         level = SLIC_INTAGG_3;
 822                                 else if (load > SLIC_LOAD_2)
 823                                         level = SLIC_INTAGG_2;
 824                                 else if (load > SLIC_LOAD_1)
 825                                         level = SLIC_INTAGG_1;
 826                                 else
 827                                         level = SLIC_INTAGG_0;
 828                         }
 829                         if (card->loadlevel_current != level) {
 830                                 card->loadlevel_current = level;
 831                                 slic_reg32_write(intagg, level, FLUSH);
 832                         }
 833                 } else {
 834                         if (load > SLIC_LOAD_5)
 835                                 level = SLIC_INTAGG_5;
 836                         else if (load > SLIC_LOAD_4)
 837                                 level = SLIC_INTAGG_4;
 838                         else if (load > SLIC_LOAD_3)
 839                                 level = SLIC_INTAGG_3;
 840                         else if (load > SLIC_LOAD_2)
 841                                 level = SLIC_INTAGG_2;
 842                         else if (load > SLIC_LOAD_1)
 843                                 level = SLIC_INTAGG_1;
 844                         else
 845                                 level = SLIC_INTAGG_0;
 846                         if (card->loadlevel_current != level) {
 847                                 card->loadlevel_current = level;
 848                                 slic_reg32_write(intagg, level, FLUSH);
 849                         }
 850                 }
 851         }
 852         card->events = 0;
 853         card->loadtimer.expires = jiffies + (SLIC_LOADTIMER_PERIOD * HZ);
 854         add_timer(&card->loadtimer);
 855 }
 856
 857 static int slic_upr_queue_request(struct adapter *adapter,
 858                            u32 upr_request,
 859                            u32 upr_data,
 860                            u32 upr_data_h,
 861                            u32 upr_buffer, u32 upr_buffer_h)
 862 {
 863         struct slic_upr *upr;
 864         struct slic_upr *uprqueue;
 865
 866         upr = kmalloc(sizeof(struct slic_upr), GFP_ATOMIC);
 867         if (!upr)
 868                 return -ENOMEM;
 869
 870         upr->adapter = adapter->port;
 871         upr->upr_request = upr_request;
 872         upr->upr_data = upr_data;
 873         upr->upr_buffer = upr_buffer;
 874         upr->upr_data_h = upr_data_h;
 875         upr->upr_buffer_h = upr_buffer_h;
 876         upr->next = NULL;
 877         if (adapter->upr_list) {
 878                 uprqueue = adapter->upr_list;
 879
 880                 while (uprqueue->next)
 881                         uprqueue = uprqueue->next;
 882                 uprqueue->next = upr;
 883         } else {
 884                 adapter->upr_list = upr;
 885         }
 886         return 0;
 887 }
 888
 889 static void slic_upr_start(struct adapter *adapter)
 890 {
 891         struct slic_upr *upr;
 892         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
 893 /*
 894     char * ptr1;
 895     char * ptr2;
 896     uint cmdoffset;
 897 */
 898         upr = adapter->upr_list;
 899         if (!upr)
 900                 return;
 901         if (adapter->upr_busy)
 902                 return;
 903         adapter->upr_busy = 1;
 904
 905         switch (upr->upr_request) {
 906         case SLIC_UPR_STATS:
 907                 if (upr->upr_data_h == 0) {
 908                         slic_reg32_write(&slic_regs->slic_stats, upr->upr_data,
 909                                          FLUSH);
 910                 } else {
 911                         slic_reg64_write(adapter, &slic_regs->slic_stats64,
 912                                          upr->upr_data,
 913                                          &slic_regs->slic_addr_upper,
 914                                          upr->upr_data_h, FLUSH);
 915                 }
 916                 break;
 917
 918         case SLIC_UPR_RLSR:
 919                 slic_reg64_write(adapter, &slic_regs->slic_rlsr, upr->upr_data,
 920                                  &slic_regs->slic_addr_upper, upr->upr_data_h,
 921                                  FLUSH);
 922                 break;
 923
 924         case SLIC_UPR_RCONFIG:
 925                 slic_reg64_write(adapter, &slic_regs->slic_rconfig,
 926                                  upr->upr_data, &slic_regs->slic_addr_upper,
 927                                  upr->upr_data_h, FLUSH);
 928                 break;
 929         case SLIC_UPR_PING:
 930                 slic_reg32_write(&slic_regs->slic_ping, 1, FLUSH);
 931                 break;
 932         }
 933 }
 934
 935 static int slic_upr_request(struct adapter *adapter,
 936                      u32 upr_request,
 937                      u32 upr_data,
 938                      u32 upr_data_h,
 939                      u32 upr_buffer, u32 upr_buffer_h)
 940 {
 941         int rc;
 942
 943         spin_lock_irqsave(&adapter->upr_lock.lock, adapter->upr_lock.flags);
 944         rc = slic_upr_queue_request(adapter,
 945                                         upr_request,
 946                                         upr_data,
 947                                         upr_data_h, upr_buffer, upr_buffer_h);
 948         if (rc)
 949                 goto err_unlock_irq;
 950
 951         slic_upr_start(adapter);
 952 err_unlock_irq:
 953         spin_unlock_irqrestore(&adapter->upr_lock.lock,
 954                                 adapter->upr_lock.flags);
 955         return rc;
 956 }
 957
 958 static void slic_link_upr_complete(struct adapter *adapter, u32 isr)
 959 {
 960         u32 linkstatus = adapter->pshmem->linkstatus;
 961         uint linkup;
 962         unsigned char linkspeed;
 963         unsigned char linkduplex;
 964
 965         if ((isr & ISR_UPCERR) || (isr & ISR_UPCBSY)) {
 966                 struct slic_shmem *pshmem;
 967
 968                 pshmem = (struct slic_shmem *)(unsigned long)
 969                          adapter->phys_shmem;
 970 #if BITS_PER_LONG == 64
 971                 slic_upr_queue_request(adapter,
 972                                        SLIC_UPR_RLSR,
 973                                        SLIC_GET_ADDR_LOW(&pshmem->linkstatus),
 974                                        SLIC_GET_ADDR_HIGH(&pshmem->linkstatus),
 975                                        0, 0);
 976 #else
 977                 slic_upr_queue_request(adapter,
 978                                        SLIC_UPR_RLSR,
 979                                        (u32) &pshmem->linkstatus,
 980                                        SLIC_GET_ADDR_HIGH(pshmem), 0, 0);
 981 #endif
 982                 return;
 983         }
 984         if (adapter->state != ADAPT_UP)
 985                 return;
 986
 987         linkup = linkstatus & GIG_LINKUP ? LINK_UP : LINK_DOWN;
 988         if (linkstatus & GIG_SPEED_1000)
 989                 linkspeed = LINK_1000MB;
 990         else if (linkstatus & GIG_SPEED_100)
 991                 linkspeed = LINK_100MB;
 992         else
 993                 linkspeed = LINK_10MB;
 994
 995         if (linkstatus & GIG_FULLDUPLEX)
 996                 linkduplex = LINK_FULLD;
 997         else
 998                 linkduplex = LINK_HALFD;
 999
1000         if ((adapter->linkstate == LINK_DOWN) && (linkup == LINK_DOWN))
1001                 return;
1002
1003         /* link up event, but nothing has changed */
1004         if ((adapter->linkstate == LINK_UP) &&
1005             (linkup == LINK_UP) &&
1006             (adapter->linkspeed == linkspeed) &&
1007             (adapter->linkduplex == linkduplex))
1008                 return;
1009
1010         /* link has changed at this point */
1011
1012         /* link has gone from up to down */
1013         if (linkup == LINK_DOWN) {
1014                 adapter->linkstate = LINK_DOWN;
1015                 return;
1016         }
1017
1018         /* link has gone from down to up */
1019         adapter->linkspeed = linkspeed;
1020         adapter->linkduplex = linkduplex;
1021
1022         if (adapter->linkstate != LINK_UP) {
1023                 /* setup the mac */
1024                 slic_config_set(adapter, true);
1025                 adapter->linkstate = LINK_UP;
1026                 netif_start_queue(adapter->netdev);
1027         }
1028 }
1029
1030 static void slic_upr_request_complete(struct adapter *adapter, u32 isr)
1031 {
1032         struct sliccard *card = adapter->card;
1033         struct slic_upr *upr;
1034
1035         spin_lock_irqsave(&adapter->upr_lock.lock, adapter->upr_lock.flags);
1036         upr = adapter->upr_list;
1037         if (!upr) {
1038                 spin_unlock_irqrestore(&adapter->upr_lock.lock,
1039                                         adapter->upr_lock.flags);
1040                 return;
1041         }
1042         adapter->upr_list = upr->next;
1043         upr->next = NULL;
1044         adapter->upr_busy = 0;
1045         switch (upr->upr_request) {
1046         case SLIC_UPR_STATS:
1047                 {
1048                         struct slic_stats *slicstats =
1049                             (struct slic_stats *) &adapter->pshmem->inicstats;
1050                         struct slic_stats *newstats = slicstats;
1051                         struct slic_stats  *old = &adapter->inicstats_prev;
1052                         struct slicnet_stats *stst = &adapter->slic_stats;
1053
1054                         if (isr & ISR_UPCERR) {
1055                                 dev_err(&adapter->netdev->dev,
1056                                         "SLIC_UPR_STATS command failed isr[%x]\n",
1057                                         isr);
1058
1059                                 break;
1060                         }
1061                         UPDATE_STATS_GB(stst->tcp.xmit_tcp_segs,
1062                                         newstats->xmit_tcp_segs_gb,
1063                                         old->xmit_tcp_segs_gb);
1064
1065                         UPDATE_STATS_GB(stst->tcp.xmit_tcp_bytes,
1066                                         newstats->xmit_tcp_bytes_gb,
1067                                         old->xmit_tcp_bytes_gb);
1068
1069                         UPDATE_STATS_GB(stst->tcp.rcv_tcp_segs,
1070                                         newstats->rcv_tcp_segs_gb,
1071                                         old->rcv_tcp_segs_gb);
1072
1073                         UPDATE_STATS_GB(stst->tcp.rcv_tcp_bytes,
1074                                         newstats->rcv_tcp_bytes_gb,
1075                                         old->rcv_tcp_bytes_gb);
1076
1077                         UPDATE_STATS_GB(stst->iface.xmt_bytes,
1078                                         newstats->xmit_bytes_gb,
1079                                         old->xmit_bytes_gb);
1080
1081                         UPDATE_STATS_GB(stst->iface.xmt_ucast,
1082                                         newstats->xmit_unicasts_gb,
1083                                         old->xmit_unicasts_gb);
1084
1085                         UPDATE_STATS_GB(stst->iface.rcv_bytes,
1086                                         newstats->rcv_bytes_gb,
1087                                         old->rcv_bytes_gb);
1088
1089                         UPDATE_STATS_GB(stst->iface.rcv_ucast,
1090                                         newstats->rcv_unicasts_gb,
1091                                         old->rcv_unicasts_gb);
1092
1093                         UPDATE_STATS_GB(stst->iface.xmt_errors,
1094                                         newstats->xmit_collisions_gb,
1095                                         old->xmit_collisions_gb);
1096
1097                         UPDATE_STATS_GB(stst->iface.xmt_errors,
1098                                         newstats->xmit_excess_collisions_gb,
1099                                         old->xmit_excess_collisions_gb);
1100
1101                         UPDATE_STATS_GB(stst->iface.xmt_errors,
1102                                         newstats->xmit_other_error_gb,
1103                                         old->xmit_other_error_gb);
1104
1105                         UPDATE_STATS_GB(stst->iface.rcv_errors,
1106                                         newstats->rcv_other_error_gb,
1107                                         old->rcv_other_error_gb);
1108
1109                         UPDATE_STATS_GB(stst->iface.rcv_discards,
1110                                         newstats->rcv_drops_gb,
1111                                         old->rcv_drops_gb);
1112
1113                         if (newstats->rcv_drops_gb > old->rcv_drops_gb) {
1114                                 adapter->rcv_drops +=
1115                                     (newstats->rcv_drops_gb -
1116                                      old->rcv_drops_gb);
1117                         }
1118                         memcpy(old, newstats, sizeof(struct slic_stats));
1119                         break;
1120                 }
1121         case SLIC_UPR_RLSR:
1122                 slic_link_upr_complete(adapter, isr);
1123                 break;
1124         case SLIC_UPR_RCONFIG:
1125                 break;
1126         case SLIC_UPR_PING:
1127                 card->pingstatus |= (isr & ISR_PINGDSMASK);
1128                 break;
1129         }
1130         kfree(upr);
1131         slic_upr_start(adapter);
1132         spin_unlock_irqrestore(&adapter->upr_lock.lock,
1133                                 adapter->upr_lock.flags);
1134 }
1135
1136 static void slic_config_get(struct adapter *adapter, u32 config,
1137                                                         u32 config_h)
1138 {
1139         int status;
1140
1141         status = slic_upr_request(adapter,
1142                                   SLIC_UPR_RCONFIG,
1143                                   (u32) config, (u32) config_h, 0, 0);
1144 }
1145
1146 /*
1147  * Compute a checksum of the EEPROM according to RFC 1071.
1148  */
1149 static u16 slic_eeprom_cksum(void *eeprom, unsigned len)
1150 {
1151         u16 *wp = eeprom;
1152         u32 checksum = 0;
1153
1154         while (len > 1) {
1155                 checksum += *(wp++);
1156                 len -= 2;
1157         }
1158
1159         if (len > 0)
1160                 checksum += *(u8 *) wp;
1161
1162
1163         while (checksum >> 16)
1164                 checksum = (checksum & 0xFFFF) + ((checksum >> 16) & 0xFFFF);
1165
1166         return ~checksum;
1167 }
1168
1169 static void slic_rspqueue_free(struct adapter *adapter)
1170 {
1171         int i;
1172         struct slic_rspqueue *rspq = &adapter->rspqueue;
1173
1174         for (i = 0; i < rspq->num_pages; i++) {
1175                 if (rspq->vaddr[i]) {
1176                         pci_free_consistent(adapter->pcidev, PAGE_SIZE,
1177                                             rspq->vaddr[i], rspq->paddr[i]);
1178                 }
1179                 rspq->vaddr[i] = NULL;
1180                 rspq->paddr[i] = 0;
1181         }
1182         rspq->offset = 0;
1183         rspq->pageindex = 0;
1184         rspq->rspbuf = NULL;
1185 }
1186
1187 static int slic_rspqueue_init(struct adapter *adapter)
1188 {
1189         int i;
1190         struct slic_rspqueue *rspq = &adapter->rspqueue;
1191         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
1192         u32 paddrh = 0;
1193
1194         memset(rspq, 0, sizeof(struct slic_rspqueue));
1195
1196         rspq->num_pages = SLIC_RSPQ_PAGES_GB;
1197
1198         for (i = 0; i < rspq->num_pages; i++) {
1199                 rspq->vaddr[i] = pci_alloc_consistent(adapter->pcidev,
1200                                                       PAGE_SIZE,
1201                                                       &rspq->paddr[i]);
1202                 if (!rspq->vaddr[i]) {
1203                         dev_err(&adapter->pcidev->dev,
1204                                 "pci_alloc_consistent failed\n");
1205                         slic_rspqueue_free(adapter);
1206                         return -ENOMEM;
1207                 }
1208                 /* FIXME:
1209                  * do we really need this assertions (4K PAGE_SIZE aligned addr)? */
1210                 memset(rspq->vaddr[i], 0, PAGE_SIZE);
1211
1212                 if (paddrh == 0) {
1213                         slic_reg32_write(&slic_regs->slic_rbar,
1214                                 (rspq->paddr[i] | SLIC_RSPQ_BUFSINPAGE),
1215                                 DONT_FLUSH);
1216                 } else {
1217                         slic_reg64_write(adapter, &slic_regs->slic_rbar64,
1218                                 (rspq->paddr[i] | SLIC_RSPQ_BUFSINPAGE),
1219                                 &slic_regs->slic_addr_upper,
1220                                 paddrh, DONT_FLUSH);
1221                 }
1222         }
1223         rspq->offset = 0;
1224         rspq->pageindex = 0;
1225         rspq->rspbuf = (struct slic_rspbuf *)rspq->vaddr[0];
1226         return 0;
1227 }
1228
1229 static struct slic_rspbuf *slic_rspqueue_getnext(struct adapter *adapter)
1230 {
1231         struct slic_rspqueue *rspq = &adapter->rspqueue;
1232         struct slic_rspbuf *buf;
1233
1234         if (!(rspq->rspbuf->status))
1235                 return NULL;
1236
1237         buf = rspq->rspbuf;
1238         if (++rspq->offset < SLIC_RSPQ_BUFSINPAGE) {
1239                 rspq->rspbuf++;
1240         } else {
1241                 slic_reg64_write(adapter, &adapter->slic_regs->slic_rbar64,
1242                         (rspq->paddr[rspq->pageindex] | SLIC_RSPQ_BUFSINPAGE),
1243                         &adapter->slic_regs->slic_addr_upper, 0, DONT_FLUSH);
1244                 rspq->pageindex = (rspq->pageindex + 1) % rspq->num_pages;
1245                 rspq->offset = 0;
1246                 rspq->rspbuf = (struct slic_rspbuf *)
1247                                                 rspq->vaddr[rspq->pageindex];
1248         }
1249
1250         return buf;
1251 }
1252
1253 static void slic_cmdqmem_free(struct adapter *adapter)
1254 {
1255         struct slic_cmdqmem *cmdqmem = &adapter->cmdqmem;
1256         int i;
1257
1258         for (i = 0; i < SLIC_CMDQ_MAXPAGES; i++) {
1259                 if (cmdqmem->pages[i]) {
1260                         pci_free_consistent(adapter->pcidev,
1261                                             PAGE_SIZE,
1262                                             (void *) cmdqmem->pages[i],
1263                                             cmdqmem->dma_pages[i]);
1264                 }
1265         }
1266         memset(cmdqmem, 0, sizeof(struct slic_cmdqmem));
1267 }
1268
1269 static u32 *slic_cmdqmem_addpage(struct adapter *adapter)
1270 {
1271         struct slic_cmdqmem *cmdqmem = &adapter->cmdqmem;
1272         u32 *pageaddr;
1273
1274         if (cmdqmem->pagecnt >= SLIC_CMDQ_MAXPAGES)
1275                 return NULL;
1276         pageaddr = pci_alloc_consistent(adapter->pcidev,
1277                                         PAGE_SIZE,
1278                                         &cmdqmem->dma_pages[cmdqmem->pagecnt]);
1279         if (!pageaddr)
1280                 return NULL;
1281
1282         cmdqmem->pages[cmdqmem->pagecnt] = pageaddr;
1283         cmdqmem->pagecnt++;
1284         return pageaddr;
1285 }
1286
1287 static void slic_cmdq_free(struct adapter *adapter)
1288 {
1289         struct slic_hostcmd *cmd;
1290
1291         cmd = adapter->cmdq_all.head;
1292         while (cmd) {
1293                 if (cmd->busy) {
1294                         struct sk_buff *tempskb;
1295
1296                         tempskb = cmd->skb;
1297                         if (tempskb) {
1298                                 cmd->skb = NULL;
1299                                 dev_kfree_skb_irq(tempskb);
1300                         }
1301                 }
1302                 cmd = cmd->next_all;
1303         }
1304         memset(&adapter->cmdq_all, 0, sizeof(struct slic_cmdqueue));
1305         memset(&adapter->cmdq_free, 0, sizeof(struct slic_cmdqueue));
1306         memset(&adapter->cmdq_done, 0, sizeof(struct slic_cmdqueue));
1307         slic_cmdqmem_free(adapter);
1308 }
1309
1310 static void slic_cmdq_addcmdpage(struct adapter *adapter, u32 *page)
1311 {
1312         struct slic_hostcmd *cmd;
1313         struct slic_hostcmd *prev;
1314         struct slic_hostcmd *tail;
1315         struct slic_cmdqueue *cmdq;
1316         int cmdcnt;
1317         void *cmdaddr;
1318         ulong phys_addr;
1319         u32 phys_addrl;
1320         u32 phys_addrh;
1321         struct slic_handle *pslic_handle;
1322
1323         cmdaddr = page;
1324         cmd = (struct slic_hostcmd *)cmdaddr;
1325         cmdcnt = 0;
1326
1327         phys_addr = virt_to_bus((void *)page);
1328         phys_addrl = SLIC_GET_ADDR_LOW(phys_addr);
1329         phys_addrh = SLIC_GET_ADDR_HIGH(phys_addr);
1330
1331         prev = NULL;
1332         tail = cmd;
1333         while ((cmdcnt < SLIC_CMDQ_CMDSINPAGE) &&
1334                (adapter->slic_handle_ix < 256)) {
1335                 /* Allocate and initialize a SLIC_HANDLE for this command */
1336                 spin_lock_irqsave(&adapter->handle_lock.lock,
1337                                 adapter->handle_lock.flags);
1338                 pslic_handle  =  adapter->pfree_slic_handles;
1339                 adapter->pfree_slic_handles = pslic_handle->next;
1340                 spin_unlock_irqrestore(&adapter->handle_lock.lock,
1341                                 adapter->handle_lock.flags);
1342                 pslic_handle->type = SLIC_HANDLE_CMD;
1343                 pslic_handle->address = (void *) cmd;
1344                 pslic_handle->offset = (ushort) adapter->slic_handle_ix++;
1345                 pslic_handle->other_handle = NULL;
1346                 pslic_handle->next = NULL;
1347
1348                 cmd->pslic_handle = pslic_handle;
1349                 cmd->cmd64.hosthandle = pslic_handle->token.handle_token;
1350                 cmd->busy = false;
1351                 cmd->paddrl = phys_addrl;
1352                 cmd->paddrh = phys_addrh;
1353                 cmd->next_all = prev;
1354                 cmd->next = prev;
1355                 prev = cmd;
1356                 phys_addrl += SLIC_HOSTCMD_SIZE;
1357                 cmdaddr += SLIC_HOSTCMD_SIZE;
1358
1359                 cmd = (struct slic_hostcmd *)cmdaddr;
1360                 cmdcnt++;
1361         }
1362
1363         cmdq = &adapter->cmdq_all;
1364         cmdq->count += cmdcnt;  /*  SLIC_CMDQ_CMDSINPAGE;   mooktodo */
1365         tail->next_all = cmdq->head;
1366         cmdq->head = prev;
1367         cmdq = &adapter->cmdq_free;
1368         spin_lock_irqsave(&cmdq->lock.lock, cmdq->lock.flags);
1369         cmdq->count += cmdcnt;  /*  SLIC_CMDQ_CMDSINPAGE;   mooktodo */
1370         tail->next = cmdq->head;
1371         cmdq->head = prev;
1372         spin_unlock_irqrestore(&cmdq->lock.lock, cmdq->lock.flags);
1373 }
1374
1375 static int slic_cmdq_init(struct adapter *adapter)
1376 {
1377         int i;
1378         u32 *pageaddr;
1379
1380         memset(&adapter->cmdq_all, 0, sizeof(struct slic_cmdqueue));
1381         memset(&adapter->cmdq_free, 0, sizeof(struct slic_cmdqueue));
1382         memset(&adapter->cmdq_done, 0, sizeof(struct slic_cmdqueue));
1383         spin_lock_init(&adapter->cmdq_all.lock.lock);
1384         spin_lock_init(&adapter->cmdq_free.lock.lock);
1385         spin_lock_init(&adapter->cmdq_done.lock.lock);
1386         memset(&adapter->cmdqmem, 0, sizeof(struct slic_cmdqmem));
1387         adapter->slic_handle_ix = 1;
1388         for (i = 0; i < SLIC_CMDQ_INITPAGES; i++) {
1389                 pageaddr = slic_cmdqmem_addpage(adapter);
1390                 if (!pageaddr) {
1391                         slic_cmdq_free(adapter);
1392                         return -ENOMEM;
1393                 }
1394                 slic_cmdq_addcmdpage(adapter, pageaddr);
1395         }
1396         adapter->slic_handle_ix = 1;
1397
1398         return 0;
1399 }
1400
1401 static void slic_cmdq_reset(struct adapter *adapter)
1402 {
1403         struct slic_hostcmd *hcmd;
1404         struct sk_buff *skb;
1405         u32 outstanding;
1406
1407         spin_lock_irqsave(&adapter->cmdq_free.lock.lock,
1408                         adapter->cmdq_free.lock.flags);
1409         spin_lock_irqsave(&adapter->cmdq_done.lock.lock,
1410                         adapter->cmdq_done.lock.flags);
1411         outstanding = adapter->cmdq_all.count - adapter->cmdq_done.count;
1412         outstanding -= adapter->cmdq_free.count;
1413         hcmd = adapter->cmdq_all.head;
1414         while (hcmd) {
1415                 if (hcmd->busy) {
1416                         skb = hcmd->skb;
1417                         hcmd->busy = 0;
1418                         hcmd->skb = NULL;
1419                         dev_kfree_skb_irq(skb);
1420                 }
1421                 hcmd = hcmd->next_all;
1422         }
1423         adapter->cmdq_free.count = 0;
1424         adapter->cmdq_free.head = NULL;
1425         adapter->cmdq_free.tail = NULL;
1426         adapter->cmdq_done.count = 0;
1427         adapter->cmdq_done.head = NULL;
1428         adapter->cmdq_done.tail = NULL;
1429         adapter->cmdq_free.head = adapter->cmdq_all.head;
1430         hcmd = adapter->cmdq_all.head;
1431         while (hcmd) {
1432                 adapter->cmdq_free.count++;
1433                 hcmd->next = hcmd->next_all;
1434                 hcmd = hcmd->next_all;
1435         }
1436         if (adapter->cmdq_free.count != adapter->cmdq_all.count) {
1437                 dev_err(&adapter->netdev->dev,
1438                         "free_count %d != all count %d\n",
1439                         adapter->cmdq_free.count, adapter->cmdq_all.count);
1440         }
1441         spin_unlock_irqrestore(&adapter->cmdq_done.lock.lock,
1442                                 adapter->cmdq_done.lock.flags);
1443         spin_unlock_irqrestore(&adapter->cmdq_free.lock.lock,
1444                                 adapter->cmdq_free.lock.flags);
1445 }
1446
1447 static void slic_cmdq_getdone(struct adapter *adapter)
1448 {
1449         struct slic_cmdqueue *done_cmdq = &adapter->cmdq_done;
1450         struct slic_cmdqueue *free_cmdq = &adapter->cmdq_free;
1451
1452         spin_lock_irqsave(&done_cmdq->lock.lock, done_cmdq->lock.flags);
1453
1454         free_cmdq->head = done_cmdq->head;
1455         free_cmdq->count = done_cmdq->count;
1456         done_cmdq->head = NULL;
1457         done_cmdq->tail = NULL;
1458         done_cmdq->count = 0;
1459         spin_unlock_irqrestore(&done_cmdq->lock.lock, done_cmdq->lock.flags);
1460 }
1461
1462 static struct slic_hostcmd *slic_cmdq_getfree(struct adapter *adapter)
1463 {
1464         struct slic_cmdqueue *cmdq = &adapter->cmdq_free;
1465         struct slic_hostcmd *cmd = NULL;
1466
1467 lock_and_retry:
1468         spin_lock_irqsave(&cmdq->lock.lock, cmdq->lock.flags);
1469 retry:
1470         cmd = cmdq->head;
1471         if (cmd) {
1472                 cmdq->head = cmd->next;
1473                 cmdq->count--;
1474                 spin_unlock_irqrestore(&cmdq->lock.lock, cmdq->lock.flags);
1475         } else {
1476                 slic_cmdq_getdone(adapter);
1477                 cmd = cmdq->head;
1478                 if (cmd) {
1479                         goto retry;
1480                 } else {
1481                         u32 *pageaddr;
1482
1483                         spin_unlock_irqrestore(&cmdq->lock.lock,
1484                                                 cmdq->lock.flags);
1485                         pageaddr = slic_cmdqmem_addpage(adapter);
1486                         if (pageaddr) {
1487                                 slic_cmdq_addcmdpage(adapter, pageaddr);
1488                                 goto lock_and_retry;
1489                         }
1490                 }
1491         }
1492         return cmd;
1493 }
1494
1495 static void slic_cmdq_putdone_irq(struct adapter *adapter,
1496                                 struct slic_hostcmd *cmd)
1497 {
1498         struct slic_cmdqueue *cmdq = &adapter->cmdq_done;
1499
1500         spin_lock(&cmdq->lock.lock);
1501         cmd->busy = 0;
1502         cmd->next = cmdq->head;
1503         cmdq->head = cmd;
1504         cmdq->count++;
1505         if ((adapter->xmitq_full) && (cmdq->count > 10))
1506                 netif_wake_queue(adapter->netdev);
1507         spin_unlock(&cmdq->lock.lock);
1508 }
1509
1510 static int slic_rcvqueue_fill(struct adapter *adapter)
1511 {
1512         void *paddr;
1513         u32 paddrl;
1514         u32 paddrh;
1515         struct slic_rcvqueue *rcvq = &adapter->rcvqueue;
1516         int i = 0;
1517         struct device *dev = &adapter->netdev->dev;
1518
1519         while (i < SLIC_RCVQ_FILLENTRIES) {
1520                 struct slic_rcvbuf *rcvbuf;
1521                 struct sk_buff *skb;
1522 #ifdef KLUDGE_FOR_4GB_BOUNDARY
1523 retry_rcvqfill:
1524 #endif
1525                 skb = alloc_skb(SLIC_RCVQ_RCVBUFSIZE, GFP_ATOMIC);
1526                 if (skb) {
1527                         paddr = (void *)(unsigned long)
1528                                 pci_map_single(adapter->pcidev,
1529                                                skb->data,
1530                                                SLIC_RCVQ_RCVBUFSIZE,
1531                                                PCI_DMA_FROMDEVICE);
1532                         paddrl = SLIC_GET_ADDR_LOW(paddr);
1533                         paddrh = SLIC_GET_ADDR_HIGH(paddr);
1534
1535                         skb->len = SLIC_RCVBUF_HEADSIZE;
1536                         rcvbuf = (struct slic_rcvbuf *)skb->head;
1537                         rcvbuf->status = 0;
1538                         skb->next = NULL;
1539 #ifdef KLUDGE_FOR_4GB_BOUNDARY
1540                         if (paddrl == 0) {
1541                                 dev_err(dev, "%s: LOW 32bits PHYSICAL ADDRESS == 0\n",
1542                                         __func__);
1543                                 dev_err(dev, "skb[%p] PROBLEM\n", skb);
1544                                 dev_err(dev, "         skbdata[%p]\n", skb->data);
1545                                 dev_err(dev, "         skblen[%x]\n", skb->len);
1546                                 dev_err(dev, "         paddr[%p]\n", paddr);
1547                                 dev_err(dev, "         paddrl[%x]\n", paddrl);
1548                                 dev_err(dev, "         paddrh[%x]\n", paddrh);
1549                                 dev_err(dev, "         rcvq->head[%p]\n", rcvq->head);
1550                                 dev_err(dev, "         rcvq->tail[%p]\n", rcvq->tail);
1551                                 dev_err(dev, "         rcvq->count[%x]\n", rcvq->count);
1552                                 dev_err(dev, "SKIP THIS SKB!!!!!!!!\n");
1553                                 goto retry_rcvqfill;
1554                         }
1555 #else
1556                         if (paddrl == 0) {
1557                                 dev_err(dev, "%s: LOW 32bits PHYSICAL ADDRESS == 0\n",
1558                                         __func__);
1559                                 dev_err(dev, "skb[%p] PROBLEM\n", skb);
1560                                 dev_err(dev, "         skbdata[%p]\n", skb->data);
1561                                 dev_err(dev, "         skblen[%x]\n", skb->len);
1562                                 dev_err(dev, "         paddr[%p]\n", paddr);
1563                                 dev_err(dev, "         paddrl[%x]\n", paddrl);
1564                                 dev_err(dev, "         paddrh[%x]\n", paddrh);
1565                                 dev_err(dev, "         rcvq->head[%p]\n", rcvq->head);
1566                                 dev_err(dev, "         rcvq->tail[%p]\n", rcvq->tail);
1567                                 dev_err(dev, "         rcvq->count[%x]\n", rcvq->count);
1568                                 dev_err(dev, "GIVE TO CARD ANYWAY\n");
1569                         }
1570 #endif
1571                         if (paddrh == 0) {
1572                                 slic_reg32_write(&adapter->slic_regs->slic_hbar,
1573                                                  (u32)paddrl, DONT_FLUSH);
1574                         } else {
1575                                 slic_reg64_write(adapter,
1576                                         &adapter->slic_regs->slic_hbar64,
1577                                         paddrl,
1578                                         &adapter->slic_regs->slic_addr_upper,
1579                                         paddrh, DONT_FLUSH);
1580                         }
1581                         if (rcvq->head)
1582                                 rcvq->tail->next = skb;
1583                         else
1584                                 rcvq->head = skb;
1585                         rcvq->tail = skb;
1586                         rcvq->count++;
1587                         i++;
1588                 } else {
1589                         dev_err(&adapter->netdev->dev,
1590                                 "slic_rcvqueue_fill could only get [%d] skbuffs\n",
1591                                 i);
1592                         break;
1593                 }
1594         }
1595         return i;
1596 }
1597
1598 static void slic_rcvqueue_free(struct adapter *adapter)
1599 {
1600         struct slic_rcvqueue *rcvq = &adapter->rcvqueue;
1601         struct sk_buff *skb;
1602
1603         while (rcvq->head) {
1604                 skb = rcvq->head;
1605                 rcvq->head = rcvq->head->next;
1606                 dev_kfree_skb(skb);
1607         }
1608         rcvq->tail = NULL;
1609         rcvq->head = NULL;
1610         rcvq->count = 0;
1611 }
1612
1613 static int slic_rcvqueue_init(struct adapter *adapter)
1614 {
1615         int i, count;
1616         struct slic_rcvqueue *rcvq = &adapter->rcvqueue;
1617
1618         rcvq->tail = NULL;
1619         rcvq->head = NULL;
1620         rcvq->size = SLIC_RCVQ_ENTRIES;
1621         rcvq->errors = 0;
1622         rcvq->count = 0;
1623         i = (SLIC_RCVQ_ENTRIES / SLIC_RCVQ_FILLENTRIES);
1624         count = 0;
1625         while (i) {
1626                 count += slic_rcvqueue_fill(adapter);
1627                 i--;
1628         }
1629         if (rcvq->count < SLIC_RCVQ_MINENTRIES) {
1630                 slic_rcvqueue_free(adapter);
1631                 return -ENOMEM;
1632         }
1633         return 0;
1634 }
1635
1636 static struct sk_buff *slic_rcvqueue_getnext(struct adapter *adapter)
1637 {
1638         struct slic_rcvqueue *rcvq = &adapter->rcvqueue;
1639         struct sk_buff *skb;
1640         struct slic_rcvbuf *rcvbuf;
1641         int count;
1642
1643         if (rcvq->count) {
1644                 skb = rcvq->head;
1645                 rcvbuf = (struct slic_rcvbuf *)skb->head;
1646
1647                 if (rcvbuf->status & IRHDDR_SVALID) {
1648                         rcvq->head = rcvq->head->next;
1649                         skb->next = NULL;
1650                         rcvq->count--;
1651                 } else {
1652                         skb = NULL;
1653                 }
1654         } else {
1655                 dev_err(&adapter->netdev->dev,
1656                         "RcvQ Empty!! rcvq[%p] count[%x]\n", rcvq, rcvq->count);
1657                 skb = NULL;
1658         }
1659         while (rcvq->count < SLIC_RCVQ_FILLTHRESH) {
1660                 count = slic_rcvqueue_fill(adapter);
1661                 if (!count)
1662                         break;
1663         }
1664         if (skb)
1665                 rcvq->errors = 0;
1666         return skb;
1667 }
1668
1669 static u32 slic_rcvqueue_reinsert(struct adapter *adapter, struct sk_buff *skb)
1670 {
1671         struct slic_rcvqueue *rcvq = &adapter->rcvqueue;
1672         void *paddr;
1673         u32 paddrl;
1674         u32 paddrh;
1675         struct slic_rcvbuf *rcvbuf = (struct slic_rcvbuf *)skb->head;
1676         struct device *dev;
1677
1678         paddr = (void *)(unsigned long)
1679                 pci_map_single(adapter->pcidev, skb->head,
1680                                SLIC_RCVQ_RCVBUFSIZE, PCI_DMA_FROMDEVICE);
1681         rcvbuf->status = 0;
1682         skb->next = NULL;
1683
1684         paddrl = SLIC_GET_ADDR_LOW(paddr);
1685         paddrh = SLIC_GET_ADDR_HIGH(paddr);
1686
1687         if (paddrl == 0) {
1688                 dev = &adapter->netdev->dev;
1689                 dev_err(dev, "%s: LOW 32bits PHYSICAL ADDRESS == 0\n",
1690                         __func__);
1691                 dev_err(dev, "skb[%p] PROBLEM\n", skb);
1692                 dev_err(dev, "         skbdata[%p]\n", skb->data);
1693                 dev_err(dev, "         skblen[%x]\n", skb->len);
1694                 dev_err(dev, "         paddr[%p]\n", paddr);
1695                 dev_err(dev, "         paddrl[%x]\n", paddrl);
1696                 dev_err(dev, "         paddrh[%x]\n", paddrh);
1697                 dev_err(dev, "         rcvq->head[%p]\n", rcvq->head);
1698                 dev_err(dev, "         rcvq->tail[%p]\n", rcvq->tail);
1699                 dev_err(dev, "         rcvq->count[%x]\n", rcvq->count);
1700         }
1701         if (paddrh == 0) {
1702                 slic_reg32_write(&adapter->slic_regs->slic_hbar, (u32)paddrl,
1703                                  DONT_FLUSH);
1704         } else {
1705                 slic_reg64_write(adapter, &adapter->slic_regs->slic_hbar64,
1706                                  paddrl, &adapter->slic_regs->slic_addr_upper,
1707                                  paddrh, DONT_FLUSH);
1708         }
1709         if (rcvq->head)
1710                 rcvq->tail->next = skb;
1711         else
1712                 rcvq->head = skb;
1713         rcvq->tail = skb;
1714         rcvq->count++;
1715         return rcvq->count;
1716 }
1717
1718 /*
1719  * slic_link_event_handler -
1720  *
1721  * Initiate a link configuration sequence.  The link configuration begins
1722  * by issuing a READ_LINK_STATUS command to the Utility Processor on the
1723  * SLIC.  Since the command finishes asynchronously, the slic_upr_comlete
1724  * routine will follow it up witha UP configuration write command, which
1725  * will also complete asynchronously.
1726  *
1727  */
1728 static void slic_link_event_handler(struct adapter *adapter)
1729 {
1730         int status;
1731         struct slic_shmem *pshmem;
1732
1733         if (adapter->state != ADAPT_UP) {
1734                 /* Adapter is not operational.  Ignore.  */
1735                 return;
1736         }
1737
1738         pshmem = (struct slic_shmem *)(unsigned long)adapter->phys_shmem;
1739
1740 #if BITS_PER_LONG == 64
1741         status = slic_upr_request(adapter,
1742                                   SLIC_UPR_RLSR,
1743                                   SLIC_GET_ADDR_LOW(&pshmem->linkstatus),
1744                                   SLIC_GET_ADDR_HIGH(&pshmem->linkstatus),
1745                                   0, 0);
1746 #else
1747         status = slic_upr_request(adapter, SLIC_UPR_RLSR,
1748                 (u32) &pshmem->linkstatus,      /* no 4GB wrap guaranteed */
1749                                   0, 0, 0);
1750 #endif
1751 }
1752
1753 static void slic_init_cleanup(struct adapter *adapter)
1754 {
1755         if (adapter->intrregistered) {
1756                 adapter->intrregistered = 0;
1757                 free_irq(adapter->netdev->irq, adapter->netdev);
1758
1759         }
1760         if (adapter->pshmem) {
1761                 pci_free_consistent(adapter->pcidev,
1762                                     sizeof(struct slic_shmem),
1763                                     adapter->pshmem, adapter->phys_shmem);
1764                 adapter->pshmem = NULL;
1765                 adapter->phys_shmem = (dma_addr_t)(unsigned long)NULL;
1766         }
1767
1768         if (adapter->pingtimerset) {
1769                 adapter->pingtimerset = 0;
1770                 del_timer(&adapter->pingtimer);
1771         }
1772
1773         slic_rspqueue_free(adapter);
1774         slic_cmdq_free(adapter);
1775         slic_rcvqueue_free(adapter);
1776 }
1777
1778 /*
1779  *  Allocate a mcast_address structure to hold the multicast address.
1780  *  Link it in.
1781  */
1782 static int slic_mcast_add_list(struct adapter *adapter, char *address)
1783 {
1784         struct mcast_address *mcaddr, *mlist;
1785
1786         /* Check to see if it already exists */
1787         mlist = adapter->mcastaddrs;
1788         while (mlist) {
1789                 if (ether_addr_equal(mlist->address, address))
1790                         return 0;
1791                 mlist = mlist->next;
1792         }
1793
1794         /* Doesn't already exist.  Allocate a structure to hold it */
1795         mcaddr = kmalloc(sizeof(struct mcast_address), GFP_ATOMIC);
1796         if (mcaddr == NULL)
1797                 return 1;
1798
1799         memcpy(mcaddr->address, address, ETH_ALEN);
1800
1801         mcaddr->next = adapter->mcastaddrs;
1802         adapter->mcastaddrs = mcaddr;
1803
1804         return 0;
1805 }
1806
1807 static void slic_mcast_set_list(struct net_device *dev)
1808 {
1809         struct adapter *adapter = netdev_priv(dev);
1810         int status = 0;
1811         char *addresses;
1812         struct netdev_hw_addr *ha;
1813
1814         netdev_for_each_mc_addr(ha, dev) {
1815                 addresses = (char *) &ha->addr;
1816                 status = slic_mcast_add_list(adapter, addresses);
1817                 if (status != 0)
1818                         break;
1819                 slic_mcast_set_bit(adapter, addresses);
1820         }
1821
1822         if (adapter->devflags_prev != dev->flags) {
1823                 adapter->macopts = MAC_DIRECTED;
1824                 if (dev->flags) {
1825                         if (dev->flags & IFF_BROADCAST)
1826                                 adapter->macopts |= MAC_BCAST;
1827                         if (dev->flags & IFF_PROMISC)
1828                                 adapter->macopts |= MAC_PROMISC;
1829                         if (dev->flags & IFF_ALLMULTI)
1830                                 adapter->macopts |= MAC_ALLMCAST;
1831                         if (dev->flags & IFF_MULTICAST)
1832                                 adapter->macopts |= MAC_MCAST;
1833                 }
1834                 adapter->devflags_prev = dev->flags;
1835                 slic_config_set(adapter, true);
1836         } else {
1837                 if (status == 0)
1838                         slic_mcast_set_mask(adapter);
1839         }
1840 }
1841
1842 #define  XMIT_FAIL_LINK_STATE               1
1843 #define  XMIT_FAIL_ZERO_LENGTH              2
1844 #define  XMIT_FAIL_HOSTCMD_FAIL             3
1845
1846 static void slic_xmit_build_request(struct adapter *adapter,
1847                              struct slic_hostcmd *hcmd, struct sk_buff *skb)
1848 {
1849         struct slic_host64_cmd *ihcmd;
1850         ulong phys_addr;
1851
1852         ihcmd = &hcmd->cmd64;
1853
1854         ihcmd->flags = (adapter->port << IHFLG_IFSHFT);
1855         ihcmd->command = IHCMD_XMT_REQ;
1856         ihcmd->u.slic_buffers.totlen = skb->len;
1857         phys_addr = pci_map_single(adapter->pcidev, skb->data, skb->len,
1858                         PCI_DMA_TODEVICE);
1859         ihcmd->u.slic_buffers.bufs[0].paddrl = SLIC_GET_ADDR_LOW(phys_addr);
1860         ihcmd->u.slic_buffers.bufs[0].paddrh = SLIC_GET_ADDR_HIGH(phys_addr);
1861         ihcmd->u.slic_buffers.bufs[0].length = skb->len;
1862 #if BITS_PER_LONG == 64
1863         hcmd->cmdsize = (u32) ((((u64)&ihcmd->u.slic_buffers.bufs[1] -
1864                                      (u64) hcmd) + 31) >> 5);
1865 #else
1866         hcmd->cmdsize = ((((u32) &ihcmd->u.slic_buffers.bufs[1] -
1867                            (u32) hcmd) + 31) >> 5);
1868 #endif
1869 }
1870
1871 static void slic_xmit_fail(struct adapter *adapter,
1872                     struct sk_buff *skb,
1873                     void *cmd, u32 skbtype, u32 status)
1874 {
1875         if (adapter->xmitq_full)
1876                 netif_stop_queue(adapter->netdev);
1877         if ((cmd == NULL) && (status <= XMIT_FAIL_HOSTCMD_FAIL)) {
1878                 switch (status) {
1879                 case XMIT_FAIL_LINK_STATE:
1880                         dev_err(&adapter->netdev->dev,
1881                                 "reject xmit skb[%p: %x] linkstate[%s] adapter[%s:%d] card[%s:%d]\n",
1882                                 skb, skb->pkt_type,
1883                                 SLIC_LINKSTATE(adapter->linkstate),
1884                                 SLIC_ADAPTER_STATE(adapter->state),
1885                                 adapter->state,
1886                                 SLIC_CARD_STATE(adapter->card->state),
1887                                 adapter->card->state);
1888                         break;
1889                 case XMIT_FAIL_ZERO_LENGTH:
1890                         dev_err(&adapter->netdev->dev,
1891                                 "xmit_start skb->len == 0 skb[%p] type[%x]\n",
1892                                 skb, skb->pkt_type);
1893                         break;
1894                 case XMIT_FAIL_HOSTCMD_FAIL:
1895                         dev_err(&adapter->netdev->dev,
1896                                 "xmit_start skb[%p] type[%x] No host commands available\n", skb, skb->pkt_type);
1897                         break;
1898                 }
1899         }
1900         dev_kfree_skb(skb);
1901         adapter->netdev->stats.tx_dropped++;
1902 }
1903
1904 static void slic_rcv_handle_error(struct adapter *adapter,
1905                                         struct slic_rcvbuf *rcvbuf)
1906 {
1907         struct slic_hddr_wds *hdr = (struct slic_hddr_wds *)rcvbuf->data;
1908         struct net_device *netdev = adapter->netdev;
1909
1910         if (adapter->devid != SLIC_1GB_DEVICE_ID) {
1911                 if (hdr->frame_status14 & VRHSTAT_802OE)
1912                         adapter->if_events.oflow802++;
1913                 if (hdr->frame_status14 & VRHSTAT_TPOFLO)
1914                         adapter->if_events.Tprtoflow++;
1915                 if (hdr->frame_status_b14 & VRHSTATB_802UE)
1916                         adapter->if_events.uflow802++;
1917                 if (hdr->frame_status_b14 & VRHSTATB_RCVE) {
1918                         adapter->if_events.rcvearly++;
1919                         netdev->stats.rx_fifo_errors++;
1920                 }
1921                 if (hdr->frame_status_b14 & VRHSTATB_BUFF) {
1922                         adapter->if_events.Bufov++;
1923                         netdev->stats.rx_over_errors++;
1924                 }
1925                 if (hdr->frame_status_b14 & VRHSTATB_CARRE) {
1926                         adapter->if_events.Carre++;
1927                         netdev->stats.tx_carrier_errors++;
1928                 }
1929                 if (hdr->frame_status_b14 & VRHSTATB_LONGE)
1930                         adapter->if_events.Longe++;
1931                 if (hdr->frame_status_b14 & VRHSTATB_PREA)
1932                         adapter->if_events.Invp++;
1933                 if (hdr->frame_status_b14 & VRHSTATB_CRC) {
1934                         adapter->if_events.Crc++;
1935                         netdev->stats.rx_crc_errors++;
1936                 }
1937                 if (hdr->frame_status_b14 & VRHSTATB_DRBL)
1938                         adapter->if_events.Drbl++;
1939                 if (hdr->frame_status_b14 & VRHSTATB_CODE)
1940                         adapter->if_events.Code++;
1941                 if (hdr->frame_status_b14 & VRHSTATB_TPCSUM)
1942                         adapter->if_events.TpCsum++;
1943                 if (hdr->frame_status_b14 & VRHSTATB_TPHLEN)
1944                         adapter->if_events.TpHlen++;
1945                 if (hdr->frame_status_b14 & VRHSTATB_IPCSUM)
1946                         adapter->if_events.IpCsum++;
1947                 if (hdr->frame_status_b14 & VRHSTATB_IPLERR)
1948                         adapter->if_events.IpLen++;
1949                 if (hdr->frame_status_b14 & VRHSTATB_IPHERR)
1950                         adapter->if_events.IpHlen++;
1951         } else {
1952                 if (hdr->frame_statusGB & VGBSTAT_XPERR) {
1953                         u32 xerr = hdr->frame_statusGB >> VGBSTAT_XERRSHFT;
1954
1955                         if (xerr == VGBSTAT_XCSERR)
1956                                 adapter->if_events.TpCsum++;
1957                         if (xerr == VGBSTAT_XUFLOW)
1958                                 adapter->if_events.Tprtoflow++;
1959                         if (xerr == VGBSTAT_XHLEN)
1960                                 adapter->if_events.TpHlen++;
1961                 }
1962                 if (hdr->frame_statusGB & VGBSTAT_NETERR) {
1963                         u32 nerr =
1964                             (hdr->
1965                              frame_statusGB >> VGBSTAT_NERRSHFT) &
1966                             VGBSTAT_NERRMSK;
1967                         if (nerr == VGBSTAT_NCSERR)
1968                                 adapter->if_events.IpCsum++;
1969                         if (nerr == VGBSTAT_NUFLOW)
1970                                 adapter->if_events.IpLen++;
1971                         if (nerr == VGBSTAT_NHLEN)
1972                                 adapter->if_events.IpHlen++;
1973                 }
1974                 if (hdr->frame_statusGB & VGBSTAT_LNKERR) {
1975                         u32 lerr = hdr->frame_statusGB & VGBSTAT_LERRMSK;
1976
1977                         if (lerr == VGBSTAT_LDEARLY)
1978                                 adapter->if_events.rcvearly++;
1979                         if (lerr == VGBSTAT_LBOFLO)
1980                                 adapter->if_events.Bufov++;
1981                         if (lerr == VGBSTAT_LCODERR)
1982                                 adapter->if_events.Code++;
1983                         if (lerr == VGBSTAT_LDBLNBL)
1984                                 adapter->if_events.Drbl++;
1985                         if (lerr == VGBSTAT_LCRCERR)
1986                                 adapter->if_events.Crc++;
1987                         if (lerr == VGBSTAT_LOFLO)
1988                                 adapter->if_events.oflow802++;
1989                         if (lerr == VGBSTAT_LUFLO)
1990                                 adapter->if_events.uflow802++;
1991                 }
1992         }
1993         return;
1994 }
1995
1996 #define TCP_OFFLOAD_FRAME_PUSHFLAG  0x10000000
1997 #define M_FAST_PATH                 0x0040
1998
1999 static void slic_rcv_handler(struct adapter *adapter)
2000 {
2001         struct net_device *netdev = adapter->netdev;
2002         struct sk_buff *skb;
2003         struct slic_rcvbuf *rcvbuf;
2004         u32 frames = 0;
2005
2006         while ((skb = slic_rcvqueue_getnext(adapter))) {
2007                 u32 rx_bytes;
2008
2009                 rcvbuf = (struct slic_rcvbuf *)skb->head;
2010                 adapter->card->events++;
2011                 if (rcvbuf->status & IRHDDR_ERR) {
2012                         adapter->rx_errors++;
2013                         slic_rcv_handle_error(adapter, rcvbuf);
2014                         slic_rcvqueue_reinsert(adapter, skb);
2015                         continue;
2016                 }
2017
2018                 if (!slic_mac_filter(adapter, (struct ether_header *)
2019                                         rcvbuf->data)) {
2020                         slic_rcvqueue_reinsert(adapter, skb);
2021                         continue;
2022                 }
2023                 skb_pull(skb, SLIC_RCVBUF_HEADSIZE);
2024                 rx_bytes = (rcvbuf->length & IRHDDR_FLEN_MSK);
2025                 skb_put(skb, rx_bytes);
2026                 netdev->stats.rx_packets++;
2027                 netdev->stats.rx_bytes += rx_bytes;
2028 #if SLIC_OFFLOAD_IP_CHECKSUM
2029                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2030 #endif
2031
2032                 skb->dev = adapter->netdev;
2033                 skb->protocol = eth_type_trans(skb, skb->dev);
2034                 netif_rx(skb);
2035
2036                 ++frames;
2037 #if SLIC_INTERRUPT_PROCESS_LIMIT
2038                 if (frames >= SLIC_RCVQ_MAX_PROCESS_ISR) {
2039                         adapter->rcv_interrupt_yields++;
2040                         break;
2041                 }
2042 #endif
2043         }
2044         adapter->max_isr_rcvs = max(adapter->max_isr_rcvs, frames);
2045 }
2046
2047 static void slic_xmit_complete(struct adapter *adapter)
2048 {
2049         struct slic_hostcmd *hcmd;
2050         struct slic_rspbuf *rspbuf;
2051         u32 frames = 0;
2052         struct slic_handle_word slic_handle_word;
2053
2054         do {
2055                 rspbuf = slic_rspqueue_getnext(adapter);
2056                 if (!rspbuf)
2057                         break;
2058                 adapter->xmit_completes++;
2059                 adapter->card->events++;
2060                 /*
2061                  Get the complete host command buffer
2062                 */
2063                 slic_handle_word.handle_token = rspbuf->hosthandle;
2064                 hcmd =
2065                     (struct slic_hostcmd *)
2066                         adapter->slic_handles[slic_handle_word.handle_index].
2067                                                                         address;
2068 /*      hcmd = (struct slic_hostcmd *) rspbuf->hosthandle; */
2069                 if (hcmd->type == SLIC_CMD_DUMB) {
2070                         if (hcmd->skb)
2071                                 dev_kfree_skb_irq(hcmd->skb);
2072                         slic_cmdq_putdone_irq(adapter, hcmd);
2073                 }
2074                 rspbuf->status = 0;
2075                 rspbuf->hosthandle = 0;
2076                 frames++;
2077         } while (1);
2078         adapter->max_isr_xmits = max(adapter->max_isr_xmits, frames);
2079 }
2080
2081 static void slic_interrupt_card_up(u32 isr, struct adapter *adapter,
2082                         struct net_device *dev)
2083 {
2084         if (isr & ~ISR_IO) {
2085                 if (isr & ISR_ERR) {
2086                         adapter->error_interrupts++;
2087                         if (isr & ISR_RMISS) {
2088                                 int count;
2089                                 int pre_count;
2090                                 int errors;
2091
2092                                 struct slic_rcvqueue *rcvq =
2093                                         &adapter->rcvqueue;
2094
2095                                 adapter->error_rmiss_interrupts++;
2096
2097                                 if (!rcvq->errors)
2098                                         rcv_count = rcvq->count;
2099                                 pre_count = rcvq->count;
2100                                 errors = rcvq->errors;
2101
2102                                 while (rcvq->count < SLIC_RCVQ_FILLTHRESH) {
2103                                         count = slic_rcvqueue_fill(adapter);
2104                                         if (!count)
2105                                                 break;
2106                                 }
2107                         } else if (isr & ISR_XDROP) {
2108                                 dev_err(&dev->dev,
2109                                                 "isr & ISR_ERR [%x] ISR_XDROP\n", isr);
2110                         } else {
2111                                 dev_err(&dev->dev,
2112                                                 "isr & ISR_ERR [%x]\n",
2113                                                 isr);
2114                         }
2115                 }
2116
2117                 if (isr & ISR_LEVENT) {
2118                         adapter->linkevent_interrupts++;
2119                         slic_link_event_handler(adapter);
2120                 }
2121
2122                 if ((isr & ISR_UPC) || (isr & ISR_UPCERR) ||
2123                     (isr & ISR_UPCBSY)) {
2124                         adapter->upr_interrupts++;
2125                         slic_upr_request_complete(adapter, isr);
2126                 }
2127         }
2128
2129         if (isr & ISR_RCV) {
2130                 adapter->rcv_interrupts++;
2131                 slic_rcv_handler(adapter);
2132         }
2133
2134         if (isr & ISR_CMD) {
2135                 adapter->xmit_interrupts++;
2136                 slic_xmit_complete(adapter);
2137         }
2138 }
2139
2140
2141 static irqreturn_t slic_interrupt(int irq, void *dev_id)
2142 {
2143         struct net_device *dev = (struct net_device *)dev_id;
2144         struct adapter *adapter = netdev_priv(dev);
2145         u32 isr;
2146
2147         if ((adapter->pshmem) && (adapter->pshmem->isr)) {
2148                 slic_reg32_write(&adapter->slic_regs->slic_icr,
2149                                  ICR_INT_MASK, FLUSH);
2150                 isr = adapter->isrcopy = adapter->pshmem->isr;
2151                 adapter->pshmem->isr = 0;
2152                 adapter->num_isrs++;
2153                 switch (adapter->card->state) {
2154                 case CARD_UP:
2155                         slic_interrupt_card_up(isr, adapter, dev);
2156                         break;
2157
2158                 case CARD_DOWN:
2159                         if ((isr & ISR_UPC) ||
2160                             (isr & ISR_UPCERR) || (isr & ISR_UPCBSY)) {
2161                                 adapter->upr_interrupts++;
2162                                 slic_upr_request_complete(adapter, isr);
2163                         }
2164                         break;
2165                 }
2166
2167                 adapter->isrcopy = 0;
2168                 adapter->all_reg_writes += 2;
2169                 adapter->isr_reg_writes++;
2170                 slic_reg32_write(&adapter->slic_regs->slic_isr, 0, FLUSH);
2171         } else {
2172                 adapter->false_interrupts++;
2173         }
2174         return IRQ_HANDLED;
2175 }
2176
2177 #define NORMAL_ETHFRAME     0
2178
2179 static netdev_tx_t slic_xmit_start(struct sk_buff *skb, struct net_device *dev)
2180 {
2181         struct sliccard *card;
2182         struct adapter *adapter = netdev_priv(dev);
2183         struct slic_hostcmd *hcmd = NULL;
2184         u32 status = 0;
2185         void *offloadcmd = NULL;
2186
2187         card = adapter->card;
2188         if ((adapter->linkstate != LINK_UP) ||
2189             (adapter->state != ADAPT_UP) || (card->state != CARD_UP)) {
2190                 status = XMIT_FAIL_LINK_STATE;
2191                 goto xmit_fail;
2192
2193         } else if (skb->len == 0) {
2194                 status = XMIT_FAIL_ZERO_LENGTH;
2195                 goto xmit_fail;
2196         }
2197
2198         hcmd = slic_cmdq_getfree(adapter);
2199         if (!hcmd) {
2200                 adapter->xmitq_full = 1;
2201                 status = XMIT_FAIL_HOSTCMD_FAIL;
2202                 goto xmit_fail;
2203         }
2204         hcmd->skb = skb;
2205         hcmd->busy = 1;
2206         hcmd->type = SLIC_CMD_DUMB;
2207         slic_xmit_build_request(adapter, hcmd, skb);
2208         dev->stats.tx_packets++;
2209         dev->stats.tx_bytes += skb->len;
2210
2211 #ifdef DEBUG_DUMP
2212         if (adapter->kill_card) {
2213                 struct slic_host64_cmd ihcmd;
2214
2215                 ihcmd = &hcmd->cmd64;
2216
2217                 ihcmd->flags |= 0x40;
2218                 adapter->kill_card = 0; /* only do this once */
2219         }
2220 #endif
2221         if (hcmd->paddrh == 0) {
2222                 slic_reg32_write(&adapter->slic_regs->slic_cbar,
2223                                  (hcmd->paddrl | hcmd->cmdsize), DONT_FLUSH);
2224         } else {
2225                 slic_reg64_write(adapter, &adapter->slic_regs->slic_cbar64,
2226                                  (hcmd->paddrl | hcmd->cmdsize),
2227                                  &adapter->slic_regs->slic_addr_upper,
2228                                  hcmd->paddrh, DONT_FLUSH);
2229         }
2230 xmit_done:
2231         return NETDEV_TX_OK;
2232 xmit_fail:
2233         slic_xmit_fail(adapter, skb, offloadcmd, NORMAL_ETHFRAME, status);
2234         goto xmit_done;
2235 }
2236
2237
2238 static void slic_adapter_freeresources(struct adapter *adapter)
2239 {
2240         slic_init_cleanup(adapter);
2241         adapter->error_interrupts = 0;
2242         adapter->rcv_interrupts = 0;
2243         adapter->xmit_interrupts = 0;
2244         adapter->linkevent_interrupts = 0;
2245         adapter->upr_interrupts = 0;
2246         adapter->num_isrs = 0;
2247         adapter->xmit_completes = 0;
2248         adapter->rcv_broadcasts = 0;
2249         adapter->rcv_multicasts = 0;
2250         adapter->rcv_unicasts = 0;
2251 }
2252
2253 static int slic_adapter_allocresources(struct adapter *adapter)
2254 {
2255         if (!adapter->intrregistered) {
2256                 int retval;
2257
2258                 spin_unlock_irqrestore(&slic_global.driver_lock.lock,
2259                                         slic_global.driver_lock.flags);
2260
2261                 retval = request_irq(adapter->netdev->irq,
2262                                      &slic_interrupt,
2263                                      IRQF_SHARED,
2264                                      adapter->netdev->name, adapter->netdev);
2265
2266                 spin_lock_irqsave(&slic_global.driver_lock.lock,
2267                                         slic_global.driver_lock.flags);
2268
2269                 if (retval) {
2270                         dev_err(&adapter->netdev->dev,
2271                                 "request_irq (%s) FAILED [%x]\n",
2272                                 adapter->netdev->name, retval);
2273                         return retval;
2274                 }
2275                 adapter->intrregistered = 1;
2276         }
2277         return 0;
2278 }
2279
2280 /*
2281  *  slic_if_init
2282  *
2283  *  Perform initialization of our slic interface.
2284  *
2285  */
2286 static int slic_if_init(struct adapter *adapter)
2287 {
2288         struct sliccard *card = adapter->card;
2289         struct net_device *dev = adapter->netdev;
2290         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
2291         struct slic_shmem *pshmem;
2292         int rc;
2293
2294         /* adapter should be down at this point */
2295         if (adapter->state != ADAPT_DOWN) {
2296                 dev_err(&dev->dev, "%s: adapter->state != ADAPT_DOWN\n",
2297                         __func__);
2298                 rc = -EIO;
2299                 goto err;
2300         }
2301
2302         adapter->devflags_prev = dev->flags;
2303         adapter->macopts = MAC_DIRECTED;
2304         if (dev->flags) {
2305                 if (dev->flags & IFF_BROADCAST)
2306                         adapter->macopts |= MAC_BCAST;
2307                 if (dev->flags & IFF_PROMISC)
2308                         adapter->macopts |= MAC_PROMISC;
2309                 if (dev->flags & IFF_ALLMULTI)
2310                         adapter->macopts |= MAC_ALLMCAST;
2311                 if (dev->flags & IFF_MULTICAST)
2312                         adapter->macopts |= MAC_MCAST;
2313         }
2314         rc = slic_adapter_allocresources(adapter);
2315         if (rc) {
2316                 dev_err(&dev->dev,
2317                         "%s: slic_adapter_allocresources FAILED %x\n",
2318                         __func__, rc);
2319                 slic_adapter_freeresources(adapter);
2320                 goto err;
2321         }
2322
2323         if (!adapter->queues_initialized) {
2324                 rc = slic_rspqueue_init(adapter);
2325                 if (rc)
2326                         goto err;
2327                 rc = slic_cmdq_init(adapter);
2328                 if (rc)
2329                         goto err;
2330                 rc = slic_rcvqueue_init(adapter);
2331                 if (rc)
2332                         goto err;
2333                 adapter->queues_initialized = 1;
2334         }
2335
2336         slic_reg32_write(&slic_regs->slic_icr, ICR_INT_OFF, FLUSH);
2337         mdelay(1);
2338
2339         if (!adapter->isp_initialized) {
2340                 pshmem = (struct slic_shmem *)(unsigned long)
2341                          adapter->phys_shmem;
2342
2343                 spin_lock_irqsave(&adapter->bit64reglock.lock,
2344                                         adapter->bit64reglock.flags);
2345
2346 #if BITS_PER_LONG == 64
2347                 slic_reg32_write(&slic_regs->slic_addr_upper,
2348                                  SLIC_GET_ADDR_HIGH(&pshmem->isr), DONT_FLUSH);
2349                 slic_reg32_write(&slic_regs->slic_isp,
2350                                  SLIC_GET_ADDR_LOW(&pshmem->isr), FLUSH);
2351 #else
2352                 slic_reg32_write(&slic_regs->slic_addr_upper, 0, DONT_FLUSH);
2353                 slic_reg32_write(&slic_regs->slic_isp, (u32)&pshmem->isr, FLUSH);
2354 #endif
2355                 spin_unlock_irqrestore(&adapter->bit64reglock.lock,
2356                                         adapter->bit64reglock.flags);
2357                 adapter->isp_initialized = 1;
2358         }
2359
2360         adapter->state = ADAPT_UP;
2361         if (!card->loadtimerset) {
2362                 init_timer(&card->loadtimer);
2363                 card->loadtimer.expires =
2364                     jiffies + (SLIC_LOADTIMER_PERIOD * HZ);
2365                 card->loadtimer.data = (ulong) card;
2366                 card->loadtimer.function = &slic_timer_load_check;
2367                 add_timer(&card->loadtimer);
2368
2369                 card->loadtimerset = 1;
2370         }
2371
2372         if (!adapter->pingtimerset) {
2373                 init_timer(&adapter->pingtimer);
2374                 adapter->pingtimer.expires =
2375                     jiffies + (PING_TIMER_INTERVAL * HZ);
2376                 adapter->pingtimer.data = (ulong) dev;
2377                 adapter->pingtimer.function = &slic_timer_ping;
2378                 add_timer(&adapter->pingtimer);
2379                 adapter->pingtimerset = 1;
2380                 adapter->card->pingstatus = ISR_PINGMASK;
2381         }
2382
2383         /*
2384          *    clear any pending events, then enable interrupts
2385          */
2386         adapter->isrcopy = 0;
2387         adapter->pshmem->isr = 0;
2388         slic_reg32_write(&slic_regs->slic_isr, 0, FLUSH);
2389         slic_reg32_write(&slic_regs->slic_icr, ICR_INT_ON, FLUSH);
2390
2391         slic_link_config(adapter, LINK_AUTOSPEED, LINK_AUTOD);
2392         slic_link_event_handler(adapter);
2393
2394 err:
2395         return rc;
2396 }
2397
2398 static int slic_entry_open(struct net_device *dev)
2399 {
2400         struct adapter *adapter = netdev_priv(dev);
2401         struct sliccard *card = adapter->card;
2402         int status;
2403
2404         netif_stop_queue(adapter->netdev);
2405
2406         spin_lock_irqsave(&slic_global.driver_lock.lock,
2407                                 slic_global.driver_lock.flags);
2408         if (!adapter->activated) {
2409                 card->adapters_activated++;
2410                 slic_global.num_slic_ports_active++;
2411                 adapter->activated = 1;
2412         }
2413         status = slic_if_init(adapter);
2414
2415         if (status != 0) {
2416                 if (adapter->activated) {
2417                         card->adapters_activated--;
2418                         slic_global.num_slic_ports_active--;
2419                         adapter->activated = 0;
2420                 }
2421                 goto spin_unlock;
2422         }
2423         if (!card->master)
2424                 card->master = adapter;
2425
2426 spin_unlock:
2427         spin_unlock_irqrestore(&slic_global.driver_lock.lock,
2428                                slic_global.driver_lock.flags);
2429         return status;
2430 }
2431
2432 static void slic_card_cleanup(struct sliccard *card)
2433 {
2434         if (card->loadtimerset) {
2435                 card->loadtimerset = 0;
2436                 del_timer_sync(&card->loadtimer);
2437         }
2438
2439         kfree(card);
2440 }
2441
2442 static void slic_entry_remove(struct pci_dev *pcidev)
2443 {
2444         struct net_device *dev = pci_get_drvdata(pcidev);
2445         struct adapter *adapter = netdev_priv(dev);
2446         struct sliccard *card;
2447         struct mcast_address *mcaddr, *mlist;
2448
2449         unregister_netdev(dev);
2450
2451         slic_adapter_freeresources(adapter);
2452         slic_unmap_mmio_space(adapter);
2453
2454         /* free multicast addresses */
2455         mlist = adapter->mcastaddrs;
2456         while (mlist) {
2457                 mcaddr = mlist;
2458                 mlist = mlist->next;
2459                 kfree(mcaddr);
2460         }
2461         card = adapter->card;
2462         card->adapters_allocated--;
2463         adapter->allocated = 0;
2464         if (!card->adapters_allocated) {
2465                 struct sliccard *curr_card = slic_global.slic_card;
2466                 if (curr_card == card) {
2467                         slic_global.slic_card = card->next;
2468                 } else {
2469                         while (curr_card->next != card)
2470                                 curr_card = curr_card->next;
2471                         curr_card->next = card->next;
2472                 }
2473                 slic_global.num_slic_cards--;
2474                 slic_card_cleanup(card);
2475         }
2476         free_netdev(dev);
2477         pci_release_regions(pcidev);
2478         pci_disable_device(pcidev);
2479 }
2480
2481 static int slic_entry_halt(struct net_device *dev)
2482 {
2483         struct adapter *adapter = netdev_priv(dev);
2484         struct sliccard *card = adapter->card;
2485         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
2486
2487         spin_lock_irqsave(&slic_global.driver_lock.lock,
2488                                 slic_global.driver_lock.flags);
2489         netif_stop_queue(adapter->netdev);
2490         adapter->state = ADAPT_DOWN;
2491         adapter->linkstate = LINK_DOWN;
2492         adapter->upr_list = NULL;
2493         adapter->upr_busy = 0;
2494         adapter->devflags_prev = 0;
2495         slic_reg32_write(&slic_regs->slic_icr, ICR_INT_OFF, FLUSH);
2496         adapter->all_reg_writes++;
2497         adapter->icr_reg_writes++;
2498         slic_config_clear(adapter);
2499         if (adapter->activated) {
2500                 card->adapters_activated--;
2501                 slic_global.num_slic_ports_active--;
2502                 adapter->activated = 0;
2503         }
2504 #ifdef AUTOMATIC_RESET
2505         slic_reg32_write(&slic_regs->slic_reset_iface, 0, FLUSH);
2506 #endif
2507         /*
2508          *  Reset the adapter's cmd queues
2509          */
2510         slic_cmdq_reset(adapter);
2511
2512 #ifdef AUTOMATIC_RESET
2513         if (!card->adapters_activated)
2514                 slic_card_init(card, adapter);
2515 #endif
2516
2517         spin_unlock_irqrestore(&slic_global.driver_lock.lock,
2518                                 slic_global.driver_lock.flags);
2519         return 0;
2520 }
2521
2522 static struct net_device_stats *slic_get_stats(struct net_device *dev)
2523 {
2524         struct adapter *adapter = netdev_priv(dev);
2525
2526         dev->stats.collisions = adapter->slic_stats.iface.xmit_collisions;
2527         dev->stats.rx_errors = adapter->slic_stats.iface.rcv_errors;
2528         dev->stats.tx_errors = adapter->slic_stats.iface.xmt_errors;
2529         dev->stats.rx_missed_errors = adapter->slic_stats.iface.rcv_discards;
2530         dev->stats.tx_heartbeat_errors = 0;
2531         dev->stats.tx_aborted_errors = 0;
2532         dev->stats.tx_window_errors = 0;
2533         dev->stats.tx_fifo_errors = 0;
2534         dev->stats.rx_frame_errors = 0;
2535         dev->stats.rx_length_errors = 0;
2536
2537         return &dev->stats;
2538 }
2539
2540 static int slic_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
2541 {
2542         struct adapter *adapter = netdev_priv(dev);
2543         struct ethtool_cmd edata;
2544         struct ethtool_cmd ecmd;
2545         u32 data[7];
2546         u32 intagg;
2547
2548         switch (cmd) {
2549         case SIOCSLICSETINTAGG:
2550                 if (copy_from_user(data, rq->ifr_data, 28))
2551                         return -EFAULT;
2552                 intagg = data[0];
2553                 dev_err(&dev->dev, "%s: set interrupt aggregation to %d\n",
2554                         __func__, intagg);
2555                 slic_intagg_set(adapter, intagg);
2556                 return 0;
2557
2558 #ifdef SLIC_TRACE_DUMP_ENABLED
2559         case SIOCSLICTRACEDUMP:
2560                 {
2561                         u32 value;
2562                         DBG_IOCTL("slic_ioctl  SIOCSLIC_TRACE_DUMP\n");
2563
2564                         if (copy_from_user(data, rq->ifr_data, 28)) {
2565                                 PRINT_ERROR
2566                                     ("slic: copy_from_user FAILED getting initial simba param\n");
2567                                 return -EFAULT;
2568                         }
2569
2570                         value = data[0];
2571                         if (tracemon_request == SLIC_DUMP_DONE) {
2572                                 PRINT_ERROR
2573                                     ("ATK Diagnostic Trace Dump Requested\n");
2574                                 tracemon_request = SLIC_DUMP_REQUESTED;
2575                                 tracemon_request_type = value;
2576                                 tracemon_timestamp = jiffies;
2577                         } else if ((tracemon_request == SLIC_DUMP_REQUESTED) ||
2578                                    (tracemon_request ==
2579                                     SLIC_DUMP_IN_PROGRESS)) {
2580                                 PRINT_ERROR
2581                                     ("ATK Diagnostic Trace Dump Requested but already in progress... ignore\n");
2582                         } else {
2583                                 PRINT_ERROR
2584                                     ("ATK Diagnostic Trace Dump Requested\n");
2585                                 tracemon_request = SLIC_DUMP_REQUESTED;
2586                                 tracemon_request_type = value;
2587                                 tracemon_timestamp = jiffies;
2588                         }
2589                         return 0;
2590                 }
2591 #endif
2592         case SIOCETHTOOL:
2593                 if (copy_from_user(&ecmd, rq->ifr_data, sizeof(ecmd)))
2594                         return -EFAULT;
2595
2596                 if (ecmd.cmd == ETHTOOL_GSET) {
2597                         memset(&edata, 0, sizeof(edata));
2598                         edata.supported = (SUPPORTED_10baseT_Half |
2599                                            SUPPORTED_10baseT_Full |
2600                                            SUPPORTED_100baseT_Half |
2601                                            SUPPORTED_100baseT_Full |
2602                                            SUPPORTED_Autoneg | SUPPORTED_MII);
2603                         edata.port = PORT_MII;
2604                         edata.transceiver = XCVR_INTERNAL;
2605                         edata.phy_address = 0;
2606                         if (adapter->linkspeed == LINK_100MB)
2607                                 edata.speed = SPEED_100;
2608                         else if (adapter->linkspeed == LINK_10MB)
2609                                 edata.speed = SPEED_10;
2610                         else
2611                                 edata.speed = 0;
2612
2613                         if (adapter->linkduplex == LINK_FULLD)
2614                                 edata.duplex = DUPLEX_FULL;
2615                         else
2616                                 edata.duplex = DUPLEX_HALF;
2617
2618                         edata.autoneg = AUTONEG_ENABLE;
2619                         edata.maxtxpkt = 1;
2620                         edata.maxrxpkt = 1;
2621                         if (copy_to_user(rq->ifr_data, &edata, sizeof(edata)))
2622                                 return -EFAULT;
2623
2624                 } else if (ecmd.cmd == ETHTOOL_SSET) {
2625                         if (!capable(CAP_NET_ADMIN))
2626                                 return -EPERM;
2627
2628                         if (adapter->linkspeed == LINK_100MB)
2629                                 edata.speed = SPEED_100;
2630                         else if (adapter->linkspeed == LINK_10MB)
2631                                 edata.speed = SPEED_10;
2632                         else
2633                                 edata.speed = 0;
2634
2635                         if (adapter->linkduplex == LINK_FULLD)
2636                                 edata.duplex = DUPLEX_FULL;
2637                         else
2638                                 edata.duplex = DUPLEX_HALF;
2639
2640                         edata.autoneg = AUTONEG_ENABLE;
2641                         edata.maxtxpkt = 1;
2642                         edata.maxrxpkt = 1;
2643                         if ((ecmd.speed != edata.speed) ||
2644                             (ecmd.duplex != edata.duplex)) {
2645                                 u32 speed;
2646                                 u32 duplex;
2647
2648                                 if (ecmd.speed == SPEED_10)
2649                                         speed = 0;
2650                                 else
2651                                         speed = PCR_SPEED_100;
2652                                 if (ecmd.duplex == DUPLEX_FULL)
2653                                         duplex = PCR_DUPLEX_FULL;
2654                                 else
2655                                         duplex = 0;
2656                                 slic_link_config(adapter, speed, duplex);
2657                                 slic_link_event_handler(adapter);
2658                         }
2659                 }
2660                 return 0;
2661         default:
2662                 return -EOPNOTSUPP;
2663         }
2664 }
2665
2666 static void slic_config_pci(struct pci_dev *pcidev)
2667 {
2668         u16 pci_command;
2669         u16 new_command;
2670
2671         pci_read_config_word(pcidev, PCI_COMMAND, &pci_command);
2672
2673         new_command = pci_command | PCI_COMMAND_MASTER
2674             | PCI_COMMAND_MEMORY
2675             | PCI_COMMAND_INVALIDATE
2676             | PCI_COMMAND_PARITY | PCI_COMMAND_SERR | PCI_COMMAND_FAST_BACK;
2677         if (pci_command != new_command)
2678                 pci_write_config_word(pcidev, PCI_COMMAND, new_command);
2679 }
2680
2681 static int slic_card_init(struct sliccard *card, struct adapter *adapter)
2682 {
2683         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
2684         struct slic_eeprom *peeprom;
2685         struct oslic_eeprom *pOeeprom;
2686         dma_addr_t phys_config;
2687         u32 phys_configh;
2688         u32 phys_configl;
2689         u32 i = 0;
2690         struct slic_shmem *pshmem;
2691         int status;
2692         uint macaddrs = card->card_size;
2693         ushort eecodesize;
2694         ushort dramsize;
2695         ushort ee_chksum;
2696         ushort calc_chksum;
2697         struct slic_config_mac *pmac;
2698         unsigned char fruformat;
2699         unsigned char oemfruformat;
2700         struct atk_fru *patkfru;
2701         union oemfru *poemfru;
2702
2703         /* Reset everything except PCI configuration space */
2704         slic_soft_reset(adapter);
2705
2706         /* Download the microcode */
2707         status = slic_card_download(adapter);
2708
2709         if (status != 0) {
2710                 dev_err(&adapter->pcidev->dev,
2711                         "download failed bus %d slot %d\n",
2712                         adapter->busnumber, adapter->slotnumber);
2713                 return status;
2714         }
2715
2716         if (!card->config_set) {
2717                 peeprom = pci_alloc_consistent(adapter->pcidev,
2718                                                sizeof(struct slic_eeprom),
2719                                                &phys_config);
2720
2721                 phys_configl = SLIC_GET_ADDR_LOW(phys_config);
2722                 phys_configh = SLIC_GET_ADDR_HIGH(phys_config);
2723
2724                 if (!peeprom) {
2725                         dev_err(&adapter->pcidev->dev,
2726                                 "eeprom read failed to get memory bus %d slot %d\n", adapter->busnumber,
2727                                 adapter->slotnumber);
2728                         return -ENOMEM;
2729                 } else {
2730                         memset(peeprom, 0, sizeof(struct slic_eeprom));
2731                 }
2732                 slic_reg32_write(&slic_regs->slic_icr, ICR_INT_OFF, FLUSH);
2733                 mdelay(1);
2734                 pshmem = (struct slic_shmem *)(unsigned long)
2735                          adapter->phys_shmem;
2736
2737                 spin_lock_irqsave(&adapter->bit64reglock.lock,
2738                                         adapter->bit64reglock.flags);
2739                 slic_reg32_write(&slic_regs->slic_addr_upper,
2740                                  SLIC_GET_ADDR_HIGH(&pshmem->isr), DONT_FLUSH);
2741                 slic_reg32_write(&slic_regs->slic_isp,
2742                                  SLIC_GET_ADDR_LOW(&pshmem->isr), FLUSH);
2743                 spin_unlock_irqrestore(&adapter->bit64reglock.lock,
2744                                         adapter->bit64reglock.flags);
2745
2746                 slic_config_get(adapter, phys_configl, phys_configh);
2747
2748                 for (;;) {
2749                         if (adapter->pshmem->isr) {
2750                                 if (adapter->pshmem->isr & ISR_UPC) {
2751                                         adapter->pshmem->isr = 0;
2752                                         slic_reg64_write(adapter,
2753                                                 &slic_regs->slic_isp, 0,
2754                                                 &slic_regs->slic_addr_upper,
2755                                                 0, FLUSH);
2756                                         slic_reg32_write(&slic_regs->slic_isr,
2757                                                          0, FLUSH);
2758
2759                                         slic_upr_request_complete(adapter, 0);
2760                                         break;
2761                                 } else {
2762                                         adapter->pshmem->isr = 0;
2763                                         slic_reg32_write(&slic_regs->slic_isr,
2764                                                          0, FLUSH);
2765                                 }
2766                         } else {
2767                                 mdelay(1);
2768                                 i++;
2769                                 if (i > 5000) {
2770                                         dev_err(&adapter->pcidev->dev,
2771                                                 "%d config data fetch timed out!\n",
2772                                                 adapter->port);
2773                                         slic_reg64_write(adapter,
2774                                                 &slic_regs->slic_isp, 0,
2775                                                 &slic_regs->slic_addr_upper,
2776                                                 0, FLUSH);
2777                                         pci_free_consistent(adapter->pcidev,
2778                                                 sizeof(struct slic_eeprom),
2779                                                 peeprom, phys_config);
2780                                         return -EINVAL;
2781                                 }
2782                         }
2783                 }
2784
2785                 switch (adapter->devid) {
2786                 /* Oasis card */
2787                 case SLIC_2GB_DEVICE_ID:
2788                         /* extract EEPROM data and pointers to EEPROM data */
2789                         pOeeprom = (struct oslic_eeprom *) peeprom;
2790                         eecodesize = pOeeprom->EecodeSize;
2791                         dramsize = pOeeprom->DramSize;
2792                         pmac = pOeeprom->MacInfo;
2793                         fruformat = pOeeprom->FruFormat;
2794                         patkfru = &pOeeprom->AtkFru;
2795                         oemfruformat = pOeeprom->OemFruFormat;
2796                         poemfru = &pOeeprom->OemFru;
2797                         macaddrs = 2;
2798                         /* Minor kludge for Oasis card
2799                              get 2 MAC addresses from the
2800                              EEPROM to ensure that function 1
2801                              gets the Port 1 MAC address */
2802                         break;
2803                 default:
2804                         /* extract EEPROM data and pointers to EEPROM data */
2805                         eecodesize = peeprom->EecodeSize;
2806                         dramsize = peeprom->DramSize;
2807                         pmac = peeprom->u2.mac.MacInfo;
2808                         fruformat = peeprom->FruFormat;
2809                         patkfru = &peeprom->AtkFru;
2810                         oemfruformat = peeprom->OemFruFormat;
2811                         poemfru = &peeprom->OemFru;
2812                         break;
2813                 }
2814
2815                 card->config.EepromValid = false;
2816
2817                 /*  see if the EEPROM is valid by checking it's checksum */
2818                 if ((eecodesize <= MAX_EECODE_SIZE) &&
2819                     (eecodesize >= MIN_EECODE_SIZE)) {
2820
2821                         ee_chksum =
2822                             *(u16 *) ((char *) peeprom + (eecodesize - 2));
2823                         /*
2824                             calculate the EEPROM checksum
2825                         */
2826                         calc_chksum = slic_eeprom_cksum(peeprom,
2827                                                         eecodesize - 2);
2828                         /*
2829                             if the ucdoe chksum flag bit worked,
2830                             we wouldn't need this
2831                         */
2832                         if (ee_chksum == calc_chksum)
2833                                 card->config.EepromValid = true;
2834                 }
2835                 /*  copy in the DRAM size */
2836                 card->config.DramSize = dramsize;
2837
2838                 /*  copy in the MAC address(es) */
2839                 for (i = 0; i < macaddrs; i++) {
2840                         memcpy(&card->config.MacInfo[i],
2841                                &pmac[i], sizeof(struct slic_config_mac));
2842                 }
2843
2844                 /*  copy the Alacritech FRU information */
2845                 card->config.FruFormat = fruformat;
2846                 memcpy(&card->config.AtkFru, patkfru,
2847                                                 sizeof(struct atk_fru));
2848
2849                 pci_free_consistent(adapter->pcidev,
2850                                     sizeof(struct slic_eeprom),
2851                                     peeprom, phys_config);
2852
2853                 if ((!card->config.EepromValid) &&
2854                     (adapter->reg_params.fail_on_bad_eeprom)) {
2855                         slic_reg64_write(adapter, &slic_regs->slic_isp, 0,
2856                                          &slic_regs->slic_addr_upper,
2857                                          0, FLUSH);
2858                         dev_err(&adapter->pcidev->dev,
2859                                 "unsupported CONFIGURATION EEPROM invalid\n");
2860                         return -EINVAL;
2861                 }
2862
2863                 card->config_set = 1;
2864         }
2865
2866         if (slic_card_download_gbrcv(adapter)) {
2867                 dev_err(&adapter->pcidev->dev,
2868                         "unable to download GB receive microcode\n");
2869                 return -EINVAL;
2870         }
2871
2872         if (slic_global.dynamic_intagg)
2873                 slic_intagg_set(adapter, 0);
2874         else
2875                 slic_intagg_set(adapter, intagg_delay);
2876
2877         /*
2878          *  Initialize ping status to "ok"
2879          */
2880         card->pingstatus = ISR_PINGMASK;
2881
2882         /*
2883          * Lastly, mark our card state as up and return success
2884          */
2885         card->state = CARD_UP;
2886         card->reset_in_progress = 0;
2887
2888         return 0;
2889 }
2890
2891 static void slic_init_driver(void)
2892 {
2893         if (slic_first_init) {
2894                 slic_first_init = 0;
2895                 spin_lock_init(&slic_global.driver_lock.lock);
2896         }
2897 }
2898
2899 static void slic_init_adapter(struct net_device *netdev,
2900                               struct pci_dev *pcidev,
2901                               const struct pci_device_id *pci_tbl_entry,
2902                               void __iomem *memaddr, int chip_idx)
2903 {
2904         ushort index;
2905         struct slic_handle *pslic_handle;
2906         struct adapter *adapter = netdev_priv(netdev);
2907
2908 /*      adapter->pcidev = pcidev;*/
2909         adapter->vendid = pci_tbl_entry->vendor;
2910         adapter->devid = pci_tbl_entry->device;
2911         adapter->subsysid = pci_tbl_entry->subdevice;
2912         adapter->busnumber = pcidev->bus->number;
2913         adapter->slotnumber = ((pcidev->devfn >> 3) & 0x1F);
2914         adapter->functionnumber = (pcidev->devfn & 0x7);
2915         adapter->slic_regs = (__iomem struct slic_regs *)memaddr;
2916         adapter->irq = pcidev->irq;
2917 /*      adapter->netdev = netdev;*/
2918         adapter->next_netdevice = head_netdevice;
2919         head_netdevice = netdev;
2920         adapter->chipid = chip_idx;
2921         adapter->port = 0;      /*adapter->functionnumber;*/
2922         adapter->cardindex = adapter->port;
2923         spin_lock_init(&adapter->upr_lock.lock);
2924         spin_lock_init(&adapter->bit64reglock.lock);
2925         spin_lock_init(&adapter->adapter_lock.lock);
2926         spin_lock_init(&adapter->reset_lock.lock);
2927         spin_lock_init(&adapter->handle_lock.lock);
2928
2929         adapter->card_size = 1;
2930         /*
2931           Initialize slic_handle array
2932         */
2933         /*
2934          Start with 1.  0 is an invalid host handle.
2935         */
2936         for (index = 1, pslic_handle = &adapter->slic_handles[1];
2937              index < SLIC_CMDQ_MAXCMDS; index++, pslic_handle++) {
2938
2939                 pslic_handle->token.handle_index = index;
2940                 pslic_handle->type = SLIC_HANDLE_FREE;
2941                 pslic_handle->next = adapter->pfree_slic_handles;
2942                 adapter->pfree_slic_handles = pslic_handle;
2943         }
2944         adapter->pshmem = (struct slic_shmem *)
2945                                         pci_alloc_consistent(adapter->pcidev,
2946                                         sizeof(struct slic_shmem),
2947                                         &adapter->
2948                                         phys_shmem);
2949         if (adapter->pshmem)
2950                 memset(adapter->pshmem, 0, sizeof(struct slic_shmem));
2951 }
2952
2953 static const struct net_device_ops slic_netdev_ops = {
2954         .ndo_open               = slic_entry_open,
2955         .ndo_stop               = slic_entry_halt,
2956         .ndo_start_xmit         = slic_xmit_start,
2957         .ndo_do_ioctl           = slic_ioctl,
2958         .ndo_set_mac_address    = slic_mac_set_address,
2959         .ndo_get_stats          = slic_get_stats,
2960         .ndo_set_rx_mode        = slic_mcast_set_list,
2961         .ndo_validate_addr      = eth_validate_addr,
2962         .ndo_change_mtu         = eth_change_mtu,
2963 };
2964
2965 static u32 slic_card_locate(struct adapter *adapter)
2966 {
2967         struct sliccard *card = slic_global.slic_card;
2968         struct physcard *physcard = slic_global.phys_card;
2969         ushort card_hostid;
2970         u16 __iomem *hostid_reg;
2971         uint i;
2972         uint rdhostid_offset = 0;
2973
2974         switch (adapter->devid) {
2975         case SLIC_2GB_DEVICE_ID:
2976                 rdhostid_offset = SLIC_RDHOSTID_2GB;
2977                 break;
2978         case SLIC_1GB_DEVICE_ID:
2979                 rdhostid_offset = SLIC_RDHOSTID_1GB;
2980                 break;
2981         default:
2982                 return -ENODEV;
2983         }
2984
2985         hostid_reg =
2986             (u16 __iomem *) (((u8 __iomem *) (adapter->slic_regs)) +
2987             rdhostid_offset);
2988
2989         /* read the 16 bit hostid from SRAM */
2990         card_hostid = (ushort) readw(hostid_reg);
2991
2992         /* Initialize a new card structure if need be */
2993         if (card_hostid == SLIC_HOSTID_DEFAULT) {
2994                 card = kzalloc(sizeof(struct sliccard), GFP_KERNEL);
2995                 if (card == NULL)
2996                         return -ENOMEM;
2997
2998                 card->next = slic_global.slic_card;
2999                 slic_global.slic_card = card;
3000                 card->busnumber = adapter->busnumber;
3001                 card->slotnumber = adapter->slotnumber;
3002
3003                 /* Find an available cardnum */
3004                 for (i = 0; i < SLIC_MAX_CARDS; i++) {
3005                         if (slic_global.cardnuminuse[i] == 0) {
3006                                 slic_global.cardnuminuse[i] = 1;
3007                                 card->cardnum = i;
3008                                 break;
3009                         }
3010                 }
3011                 slic_global.num_slic_cards++;
3012         } else {
3013                 /* Card exists, find the card this adapter belongs to */
3014                 while (card) {
3015                         if (card->cardnum == card_hostid)
3016                                 break;
3017                         card = card->next;
3018                 }
3019         }
3020
3021         if (!card)
3022                 return -ENXIO;
3023         /* Put the adapter in the card's adapter list */
3024         if (!card->adapter[adapter->port]) {
3025                 card->adapter[adapter->port] = adapter;
3026                 adapter->card = card;
3027         }
3028
3029         card->card_size = 1;    /* one port per *logical* card */
3030
3031         while (physcard) {
3032                 for (i = 0; i < SLIC_MAX_PORTS; i++) {
3033                         if (physcard->adapter[i])
3034                                 break;
3035                 }
3036                 if (i == SLIC_MAX_PORTS)
3037                         break;
3038
3039                 if (physcard->adapter[i]->slotnumber == adapter->slotnumber)
3040                         break;
3041                 physcard = physcard->next;
3042         }
3043         if (!physcard) {
3044                 /* no structure allocated for this physical card yet */
3045                 physcard = kzalloc(sizeof(struct physcard), GFP_ATOMIC);
3046                 if (!physcard) {
3047                         if (card_hostid == SLIC_HOSTID_DEFAULT)
3048                                 kfree(card);
3049                         return -ENOMEM;
3050                 }
3051
3052                 physcard->next = slic_global.phys_card;
3053                 slic_global.phys_card = physcard;
3054                 physcard->adapters_allocd = 1;
3055         } else {
3056                 physcard->adapters_allocd++;
3057         }
3058         /* Note - this is ZERO relative */
3059         adapter->physport = physcard->adapters_allocd - 1;
3060
3061         physcard->adapter[adapter->physport] = adapter;
3062         adapter->physcard = physcard;
3063
3064         return 0;
3065 }
3066
3067 static int slic_entry_probe(struct pci_dev *pcidev,
3068                                const struct pci_device_id *pci_tbl_entry)
3069 {
3070         static int cards_found;
3071         static int did_version;
3072         int err = -ENODEV;
3073         struct net_device *netdev;
3074         struct adapter *adapter;
3075         void __iomem *memmapped_ioaddr = NULL;
3076         ulong mmio_start = 0;
3077         ulong mmio_len = 0;
3078         struct sliccard *card = NULL;
3079         int pci_using_dac = 0;
3080
3081         slic_global.dynamic_intagg = dynamic_intagg;
3082
3083         err = pci_enable_device(pcidev);
3084
3085         if (err)
3086                 return err;
3087
3088         if (did_version++ == 0) {
3089                 dev_info(&pcidev->dev, "%s\n", slic_banner);
3090                 dev_info(&pcidev->dev, "%s\n", slic_proc_version);
3091         }
3092
3093         if (!pci_set_dma_mask(pcidev, DMA_BIT_MASK(64))) {
3094                 pci_using_dac = 1;
3095                 err = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
3096                 if (err) {
3097                         dev_err(&pcidev->dev, "unable to obtain 64-bit DMA for consistent allocations\n");
3098                         goto err_out_disable_pci;
3099                 }
3100         } else {
3101                 err = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
3102                 if (err) {
3103                         dev_err(&pcidev->dev, "no usable DMA configuration\n");
3104                         goto err_out_disable_pci;
3105                 }
3106                 pci_using_dac = 0;
3107                 pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
3108         }
3109
3110         err = pci_request_regions(pcidev, DRV_NAME);
3111         if (err) {
3112                 dev_err(&pcidev->dev, "can't obtain PCI resources\n");
3113                 goto err_out_disable_pci;
3114         }
3115
3116         pci_set_master(pcidev);
3117
3118         netdev = alloc_etherdev(sizeof(struct adapter));
3119         if (!netdev) {
3120                 err = -ENOMEM;
3121                 goto err_out_exit_slic_probe;
3122         }
3123
3124         SET_NETDEV_DEV(netdev, &pcidev->dev);
3125
3126         pci_set_drvdata(pcidev, netdev);
3127         adapter = netdev_priv(netdev);
3128         adapter->netdev = netdev;
3129         adapter->pcidev = pcidev;
3130         if (pci_using_dac)
3131                 netdev->features |= NETIF_F_HIGHDMA;
3132
3133         mmio_start = pci_resource_start(pcidev, 0);
3134         mmio_len = pci_resource_len(pcidev, 0);
3135
3136
3137 /*      memmapped_ioaddr =  (u32)ioremap_nocache(mmio_start, mmio_len);*/
3138         memmapped_ioaddr = ioremap(mmio_start, mmio_len);
3139         if (!memmapped_ioaddr) {
3140                 dev_err(&pcidev->dev, "cannot remap MMIO region %lx @ %lx\n",
3141                         mmio_len, mmio_start);
3142                 err = -ENOMEM;
3143                 goto err_out_free_netdev;
3144         }
3145
3146         slic_config_pci(pcidev);
3147
3148         slic_init_driver();
3149
3150         slic_init_adapter(netdev,
3151                           pcidev, pci_tbl_entry, memmapped_ioaddr, cards_found);
3152
3153         err = slic_card_locate(adapter);
3154         if (err) {
3155                 dev_err(&pcidev->dev, "cannot locate card\n");
3156                 goto err_out_unmap;
3157         }
3158
3159         card = adapter->card;
3160
3161         if (!adapter->allocated) {
3162                 card->adapters_allocated++;
3163                 adapter->allocated = 1;
3164         }
3165
3166         err = slic_card_init(card, adapter);
3167         if (err)
3168                 goto err_out_unmap;
3169
3170         slic_adapter_set_hwaddr(adapter);
3171
3172         netdev->base_addr = (unsigned long) memmapped_ioaddr;
3173         netdev->irq = adapter->irq;
3174         netdev->netdev_ops = &slic_netdev_ops;
3175
3176         strcpy(netdev->name, "eth%d");
3177         err = register_netdev(netdev);
3178         if (err) {
3179                 dev_err(&pcidev->dev, "Cannot register net device, aborting.\n");
3180                 goto err_out_unmap;
3181         }
3182
3183         cards_found++;
3184
3185         return 0;
3186
3187 err_out_unmap:
3188         iounmap(memmapped_ioaddr);
3189 err_out_free_netdev:
3190         free_netdev(netdev);
3191 err_out_exit_slic_probe:
3192         pci_release_regions(pcidev);
3193 err_out_disable_pci:
3194         pci_disable_device(pcidev);
3195         return err;
3196 }
3197
3198 static struct pci_driver slic_driver = {
3199         .name = DRV_NAME,
3200         .id_table = slic_pci_tbl,
3201         .probe = slic_entry_probe,
3202         .remove = slic_entry_remove,
3203 };
3204
3205 static int __init slic_module_init(void)
3206 {
3207         slic_init_driver();
3208
3209         return pci_register_driver(&slic_driver);
3210 }
3211
3212 static void __exit slic_module_cleanup(void)
3213 {
3214         pci_unregister_driver(&slic_driver);
3215 }
3216
3217 module_init(slic_module_init);
3218 module_exit(slic_module_cleanup);