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   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 acutally 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
  66 #include <linux/kernel.h>
  67 #include <linux/string.h>
  68 #include <linux/errno.h>
  69 #include <linux/ioport.h>
  70 #include <linux/slab.h>
  71 #include <linux/interrupt.h>
  72 #include <linux/timer.h>
  73 #include <linux/pci.h>
  74 #include <linux/spinlock.h>
  75 #include <linux/init.h>
  76 #include <linux/bitops.h>
  77 #include <linux/io.h>
  78 #include <linux/netdevice.h>
  79 #include <linux/etherdevice.h>
  80 #include <linux/skbuff.h>
  81 #include <linux/delay.h>
  82 #include <linux/debugfs.h>
  83 #include <linux/seq_file.h>
  84 #include <linux/kthread.h>
  85 #include <linux/module.h>
  86 #include <linux/moduleparam.h>
  87
  88 #include <linux/firmware.h>
  89 #include <linux/types.h>
  90 #include <linux/dma-mapping.h>
  91 #include <linux/mii.h>
  92 #include <linux/if_vlan.h>
  93 #include <asm/unaligned.h>
  94
  95 #include <linux/ethtool.h>
  96 #include <linux/uaccess.h>
  97 #include "slichw.h"
  98 #include "slic.h"
  99
 100 static struct net_device_stats *slic_get_stats(struct net_device *dev);
 101 static int slic_entry_open(struct net_device *dev);
 102 static int slic_entry_halt(struct net_device *dev);
 103 static int slic_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 104 static int slic_xmit_start(struct sk_buff *skb, struct net_device *dev);
 105 static void slic_xmit_fail(struct adapter *adapter, struct sk_buff *skb,
 106                            void *cmd, u32 skbtype, u32 status);
 107 static void slic_config_pci(struct pci_dev *pcidev);
 108 static struct sk_buff *slic_rcvqueue_getnext(struct adapter *adapter);
 109 static int slic_mac_set_address(struct net_device *dev, void *ptr);
 110 static void slic_link_event_handler(struct adapter *adapter);
 111 static void slic_upr_request_complete(struct adapter *adapter, u32 isr);
 112 static int slic_rspqueue_init(struct adapter *adapter);
 113 static void slic_rspqueue_free(struct adapter *adapter);
 114 static struct slic_rspbuf *slic_rspqueue_getnext(struct adapter *adapter);
 115 static int slic_cmdq_init(struct adapter *adapter);
 116 static void slic_cmdq_free(struct adapter *adapter);
 117 static void slic_cmdq_reset(struct adapter *adapter);
 118 static void slic_cmdq_addcmdpage(struct adapter *adapter, u32 *page);
 119 static void slic_cmdq_getdone(struct adapter *adapter);
 120 static void slic_cmdq_putdone_irq(struct adapter *adapter,
 121                                   struct slic_hostcmd *cmd);
 122 static struct slic_hostcmd *slic_cmdq_getfree(struct adapter *adapter);
 123 static int slic_rcvqueue_init(struct adapter *adapter);
 124 static int slic_rcvqueue_fill(struct adapter *adapter);
 125 static u32 slic_rcvqueue_reinsert(struct adapter *adapter, struct sk_buff *skb);
 126 static void slic_rcvqueue_free(struct adapter *adapter);
 127 static void slic_adapter_set_hwaddr(struct adapter *adapter);
 128 static int slic_card_init(struct sliccard *card, struct adapter *adapter);
 129 static void slic_intagg_set(struct adapter *adapter, u32 value);
 130 static int slic_card_download(struct adapter *adapter);
 131 static u32 slic_card_locate(struct adapter *adapter);
 132 static int slic_if_init(struct adapter *adapter);
 133 static int slic_adapter_allocresources(struct adapter *adapter);
 134 static void slic_adapter_freeresources(struct adapter *adapter);
 135 static void slic_link_config(struct adapter *adapter, u32 linkspeed,
 136                              u32 linkduplex);
 137 static void slic_unmap_mmio_space(struct adapter *adapter);
 138 static void slic_card_cleanup(struct sliccard *card);
 139 static void slic_soft_reset(struct adapter *adapter);
 140 static bool slic_mac_filter(struct adapter *adapter,
 141                             struct ether_header *ether_frame);
 142 static void slic_mac_address_config(struct adapter *adapter);
 143 static void slic_mac_config(struct adapter *adapter);
 144 static void slic_mcast_set_mask(struct adapter *adapter);
 145 static void slic_config_set(struct adapter *adapter, bool linkchange);
 146 static void slic_config_clear(struct adapter *adapter);
 147 static void slic_config_get(struct adapter *adapter, u32 config,
 148                             u32 configh);
 149 static void slic_timer_load_check(ulong context);
 150 static void slic_assert_fail(void);
 151 static ushort slic_eeprom_cksum(char *m, int len);
 152 static void slic_upr_start(struct adapter *adapter);
 153 static void slic_link_upr_complete(struct adapter *adapter, u32 Isr);
 154 static int  slic_upr_request(struct adapter *adapter, u32 upr_request,
 155                              u32 upr_data, u32 upr_data_h, u32 upr_buffer,
 156                              u32 upr_buffer_h);
 157 static void slic_mcast_set_list(struct net_device *dev);
 158
 159
 160 static uint slic_first_init = 1;
 161 static char *slic_banner = "Alacritech SLIC Technology(tm) Server "\
 162                 "and Storage Accelerator (Non-Accelerated)";
 163
 164 static char *slic_proc_version = "2.0.351  2006/07/14 12:26:00";
 165 static char *slic_product_name = "SLIC Technology(tm) Server "\
 166                 "and Storage Accelerator (Non-Accelerated)";
 167 static char *slic_vendor = "Alacritech, Inc.";
 168
 169 static int slic_debug = 1;
 170 static int debug = -1;
 171 static struct net_device *head_netdevice;
 172
 173 static struct base_driver slic_global = { {}, 0, 0, 0, 1, NULL, NULL };
 174 static int intagg_delay = 100;
 175 static u32 dynamic_intagg;
 176 static unsigned int rcv_count;
 177 static struct dentry *slic_debugfs;
 178
 179 #define DRV_NAME          "slicoss"
 180 #define DRV_VERSION       "2.0.1"
 181 #define DRV_AUTHOR        "Alacritech, Inc. Engineering"
 182 #define DRV_DESCRIPTION   "Alacritech SLIC Techonology(tm) "\
 183                 "Non-Accelerated Driver"
 184 #define DRV_COPYRIGHT     "Copyright  2000-2006 Alacritech, Inc. "\
 185                 "All rights reserved."
 186 #define PFX                DRV_NAME " "
 187
 188 MODULE_AUTHOR(DRV_AUTHOR);
 189 MODULE_DESCRIPTION(DRV_DESCRIPTION);
 190 MODULE_LICENSE("Dual BSD/GPL");
 191
 192 module_param(dynamic_intagg, int, 0);
 193 MODULE_PARM_DESC(dynamic_intagg, "Dynamic Interrupt Aggregation Setting");
 194 module_param(intagg_delay, int, 0);
 195 MODULE_PARM_DESC(intagg_delay, "uSec Interrupt Aggregation Delay");
 196
 197 static struct pci_device_id slic_pci_tbl[] __devinitdata = {
 198         {PCI_VENDOR_ID_ALACRITECH,
 199          SLIC_1GB_DEVICE_ID,
 200          PCI_ANY_ID, PCI_ANY_ID,},
 201         {PCI_VENDOR_ID_ALACRITECH,
 202          SLIC_2GB_DEVICE_ID,
 203          PCI_ANY_ID, PCI_ANY_ID,},
 204         {0,}
 205 };
 206
 207 MODULE_DEVICE_TABLE(pci, slic_pci_tbl);
 208
 209 #ifdef ASSERT
 210 #undef ASSERT
 211 #endif
 212
 213 #ifndef ASSERT
 214 #define ASSERT(a) do {                                                  \
 215         if (!(a)) {                                                     \
 216                 printk(KERN_ERR "slicoss ASSERT() Failure: function %s" \
 217                         "line %d\n", __func__, __LINE__);               \
 218                 slic_assert_fail();                                     \
 219         }                                                               \
 220 } while (0)
 221 #endif
 222
 223
 224 #define SLIC_GET_SLIC_HANDLE(_adapter, _pslic_handle)                   \
 225 {                                                                       \
 226     spin_lock_irqsave(&_adapter->handle_lock.lock,                      \
 227                         _adapter->handle_lock.flags);                   \
 228     _pslic_handle  =  _adapter->pfree_slic_handles;                     \
 229     if (_pslic_handle) {                                                \
 230         ASSERT(_pslic_handle->type == SLIC_HANDLE_FREE);                \
 231         _adapter->pfree_slic_handles = _pslic_handle->next;             \
 232     }                                                                   \
 233     spin_unlock_irqrestore(&_adapter->handle_lock.lock,                 \
 234                         _adapter->handle_lock.flags);                   \
 235 }
 236
 237 #define SLIC_FREE_SLIC_HANDLE(_adapter, _pslic_handle)                  \
 238 {                                                                       \
 239     _pslic_handle->type = SLIC_HANDLE_FREE;                             \
 240     spin_lock_irqsave(&_adapter->handle_lock.lock,                      \
 241                         _adapter->handle_lock.flags);                   \
 242     _pslic_handle->next = _adapter->pfree_slic_handles;                 \
 243     _adapter->pfree_slic_handles = _pslic_handle;                       \
 244     spin_unlock_irqrestore(&_adapter->handle_lock.lock,                 \
 245                         _adapter->handle_lock.flags);                   \
 246 }
 247
 248 static void slic_debug_init(void);
 249 static void slic_debug_cleanup(void);
 250 static void slic_debug_adapter_create(struct adapter *adapter);
 251 static void slic_debug_adapter_destroy(struct adapter *adapter);
 252 static void slic_debug_card_create(struct sliccard *card);
 253 static void slic_debug_card_destroy(struct sliccard *card);
 254
 255 static inline void slic_reg32_write(void __iomem *reg, u32 value, bool flush)
 256 {
 257         writel(value, reg);
 258         if (flush)
 259                 mb();
 260 }
 261
 262 static inline void slic_reg64_write(struct adapter *adapter, void __iomem *reg,
 263                                     u32 value, void __iomem *regh, u32 paddrh,
 264                                     bool flush)
 265 {
 266         spin_lock_irqsave(&adapter->bit64reglock.lock,
 267                                 adapter->bit64reglock.flags);
 268         if (paddrh != adapter->curaddrupper) {
 269                 adapter->curaddrupper = paddrh;
 270                 writel(paddrh, regh);
 271         }
 272         writel(value, reg);
 273         if (flush)
 274                 mb();
 275         spin_unlock_irqrestore(&adapter->bit64reglock.lock,
 276                                 adapter->bit64reglock.flags);
 277 }
 278
 279 static void slic_init_driver(void)
 280 {
 281         if (slic_first_init) {
 282                 slic_first_init = 0;
 283                 spin_lock_init(&slic_global.driver_lock.lock);
 284                 slic_debug_init();
 285         }
 286 }
 287
 288 static void slic_init_adapter(struct net_device *netdev,
 289                               struct pci_dev *pcidev,
 290                               const struct pci_device_id *pci_tbl_entry,
 291                               void __iomem *memaddr, int chip_idx)
 292 {
 293         ushort index;
 294         struct slic_handle *pslic_handle;
 295         struct adapter *adapter = (struct adapter *)netdev_priv(netdev);
 296
 297 /*      adapter->pcidev = pcidev;*/
 298         adapter->vendid = pci_tbl_entry->vendor;
 299         adapter->devid = pci_tbl_entry->device;
 300         adapter->subsysid = pci_tbl_entry->subdevice;
 301         adapter->busnumber = pcidev->bus->number;
 302         adapter->slotnumber = ((pcidev->devfn >> 3) & 0x1F);
 303         adapter->functionnumber = (pcidev->devfn & 0x7);
 304         adapter->memorylength = pci_resource_len(pcidev, 0);
 305         adapter->slic_regs = (__iomem struct slic_regs *)memaddr;
 306         adapter->irq = pcidev->irq;
 307 /*      adapter->netdev = netdev;*/
 308         adapter->next_netdevice = head_netdevice;
 309         head_netdevice = netdev;
 310         adapter->chipid = chip_idx;
 311         adapter->port = 0;      /*adapter->functionnumber;*/
 312         adapter->cardindex = adapter->port;
 313         adapter->memorybase = memaddr;
 314         spin_lock_init(&adapter->upr_lock.lock);
 315         spin_lock_init(&adapter->bit64reglock.lock);
 316         spin_lock_init(&adapter->adapter_lock.lock);
 317         spin_lock_init(&adapter->reset_lock.lock);
 318         spin_lock_init(&adapter->handle_lock.lock);
 319
 320         adapter->card_size = 1;
 321         /*
 322           Initialize slic_handle array
 323         */
 324         ASSERT(SLIC_CMDQ_MAXCMDS <= 0xFFFF);
 325         /*
 326          Start with 1.  0 is an invalid host handle.
 327         */
 328         for (index = 1, pslic_handle = &adapter->slic_handles[1];
 329              index < SLIC_CMDQ_MAXCMDS; index++, pslic_handle++) {
 330
 331                 pslic_handle->token.handle_index = index;
 332                 pslic_handle->type = SLIC_HANDLE_FREE;
 333                 pslic_handle->next = adapter->pfree_slic_handles;
 334                 adapter->pfree_slic_handles = pslic_handle;
 335         }
 336         adapter->pshmem = (struct slic_shmem *)
 337                                         pci_alloc_consistent(adapter->pcidev,
 338                                         sizeof(struct slic_shmem),
 339                                         &adapter->
 340                                         phys_shmem);
 341         ASSERT(adapter->pshmem);
 342
 343         memset(adapter->pshmem, 0, sizeof(struct slic_shmem));
 344
 345         return;
 346 }
 347
 348 static int __devinit slic_entry_probe(struct pci_dev *pcidev,
 349                                const struct pci_device_id *pci_tbl_entry)
 350 {
 351         static int cards_found;
 352         static int did_version;
 353         int err = -ENODEV;
 354         struct net_device *netdev;
 355         struct adapter *adapter;
 356         void __iomem *memmapped_ioaddr = NULL;
 357         u32 status = 0;
 358         ulong mmio_start = 0;
 359         ulong mmio_len = 0;
 360         struct sliccard *card = NULL;
 361
 362         slic_global.dynamic_intagg = dynamic_intagg;
 363
 364         err = pci_enable_device(pcidev);
 365
 366         if (err)
 367                 return err;
 368
 369         if (slic_debug > 0 && did_version++ == 0) {
 370                 printk(KERN_DEBUG "%s\n", slic_banner);
 371                 printk(KERN_DEBUG "%s\n", slic_proc_version);
 372         }
 373
 374         err = pci_set_dma_mask(pcidev, DMA_64BIT_MASK);
 375         if (err) {
 376                 err = pci_set_dma_mask(pcidev, DMA_32BIT_MASK);
 377                 if (err)
 378                         goto err_out_disable_pci;
 379         }
 380
 381         err = pci_request_regions(pcidev, DRV_NAME);
 382         if (err)
 383                 goto err_out_disable_pci;
 384
 385         pci_set_master(pcidev);
 386
 387         netdev = alloc_etherdev(sizeof(struct adapter));
 388         if (!netdev) {
 389                 err = -ENOMEM;
 390                 goto err_out_exit_slic_probe;
 391         }
 392
 393         SET_NETDEV_DEV(netdev, &pcidev->dev);
 394
 395         pci_set_drvdata(pcidev, netdev);
 396         adapter = netdev_priv(netdev);
 397         adapter->netdev = netdev;
 398         adapter->pcidev = pcidev;
 399
 400         mmio_start = pci_resource_start(pcidev, 0);
 401         mmio_len = pci_resource_len(pcidev, 0);
 402
 403
 404 /*      memmapped_ioaddr =  (u32)ioremap_nocache(mmio_start, mmio_len);*/
 405         memmapped_ioaddr = ioremap(mmio_start, mmio_len);
 406         if (!memmapped_ioaddr) {
 407                 dev_err(&pcidev->dev, "cannot remap MMIO region %lx @ %lx\n",
 408                         mmio_len, mmio_start);
 409                 goto err_out_free_netdev;
 410         }
 411
 412         slic_config_pci(pcidev);
 413
 414         slic_init_driver();
 415
 416         slic_init_adapter(netdev,
 417                           pcidev, pci_tbl_entry, memmapped_ioaddr, cards_found);
 418
 419         status = slic_card_locate(adapter);
 420         if (status) {
 421                 dev_err(&pcidev->dev, "cannot locate card\n");
 422                 goto err_out_free_mmio_region;
 423         }
 424
 425         card = adapter->card;
 426
 427         if (!adapter->allocated) {
 428                 card->adapters_allocated++;
 429                 adapter->allocated = 1;
 430         }
 431
 432         status = slic_card_init(card, adapter);
 433
 434         if (status != STATUS_SUCCESS) {
 435                 card->state = CARD_FAIL;
 436                 adapter->state = ADAPT_FAIL;
 437                 adapter->linkstate = LINK_DOWN;
 438                 dev_err(&pcidev->dev, "FAILED status[%x]\n", status);
 439         } else {
 440                 slic_adapter_set_hwaddr(adapter);
 441         }
 442
 443         netdev->base_addr = (unsigned long)adapter->memorybase;
 444         netdev->irq = adapter->irq;
 445         netdev->open = slic_entry_open;
 446         netdev->stop = slic_entry_halt;
 447         netdev->hard_start_xmit = slic_xmit_start;
 448         netdev->do_ioctl = slic_ioctl;
 449         netdev->set_mac_address = slic_mac_set_address;
 450         netdev->get_stats = slic_get_stats;
 451         netdev->set_multicast_list = slic_mcast_set_list;
 452
 453         slic_debug_adapter_create(adapter);
 454
 455         strcpy(netdev->name, "eth%d");
 456         err = register_netdev(netdev);
 457         if (err) {
 458                 dev_err(&pcidev->dev, "Cannot register net device, aborting.\n");
 459                 goto err_out_unmap;
 460         }
 461
 462         cards_found++;
 463
 464         return status;
 465
 466 err_out_unmap:
 467         iounmap(memmapped_ioaddr);
 468 err_out_free_mmio_region:
 469         release_mem_region(mmio_start, mmio_len);
 470 err_out_free_netdev:
 471         free_netdev(netdev);
 472 err_out_exit_slic_probe:
 473         pci_release_regions(pcidev);
 474 err_out_disable_pci:
 475         pci_disable_device(pcidev);
 476         return err;
 477 }
 478
 479 static int slic_entry_open(struct net_device *dev)
 480 {
 481         struct adapter *adapter = (struct adapter *) netdev_priv(dev);
 482         struct sliccard *card = adapter->card;
 483         u32 locked = 0;
 484         int status;
 485
 486         ASSERT(adapter);
 487         ASSERT(card);
 488
 489         netif_stop_queue(adapter->netdev);
 490
 491         spin_lock_irqsave(&slic_global.driver_lock.lock,
 492                                 slic_global.driver_lock.flags);
 493         locked = 1;
 494         if (!adapter->activated) {
 495                 card->adapters_activated++;
 496                 slic_global.num_slic_ports_active++;
 497                 adapter->activated = 1;
 498         }
 499         status = slic_if_init(adapter);
 500
 501         if (status != STATUS_SUCCESS) {
 502                 if (adapter->activated) {
 503                         card->adapters_activated--;
 504                         slic_global.num_slic_ports_active--;
 505                         adapter->activated = 0;
 506                 }
 507                 if (locked) {
 508                         spin_unlock_irqrestore(&slic_global.driver_lock.lock,
 509                                                 slic_global.driver_lock.flags);
 510                         locked = 0;
 511                 }
 512                 return status;
 513         }
 514         if (!card->master)
 515                 card->master = adapter;
 516
 517         if (locked) {
 518                 spin_unlock_irqrestore(&slic_global.driver_lock.lock,
 519                                         slic_global.driver_lock.flags);
 520                 locked = 0;
 521         }
 522
 523         return STATUS_SUCCESS;
 524 }
 525
 526 static void __devexit slic_entry_remove(struct pci_dev *pcidev)
 527 {
 528         struct net_device *dev = pci_get_drvdata(pcidev);
 529         u32 mmio_start = 0;
 530         uint mmio_len = 0;
 531         struct adapter *adapter = (struct adapter *) netdev_priv(dev);
 532         struct sliccard *card;
 533         struct mcast_address *mcaddr, *mlist;
 534
 535         ASSERT(adapter);
 536         slic_adapter_freeresources(adapter);
 537         slic_unmap_mmio_space(adapter);
 538         unregister_netdev(dev);
 539
 540         mmio_start = pci_resource_start(pcidev, 0);
 541         mmio_len = pci_resource_len(pcidev, 0);
 542
 543         release_mem_region(mmio_start, mmio_len);
 544
 545         iounmap((void __iomem *)dev->base_addr);
 546         /* free multicast addresses */
 547         mlist = adapter->mcastaddrs;
 548         while (mlist) {
 549                 mcaddr = mlist;
 550                 mlist = mlist->next;
 551                 kfree(mcaddr);
 552         }
 553         ASSERT(adapter->card);
 554         card = adapter->card;
 555         ASSERT(card->adapters_allocated);
 556         card->adapters_allocated--;
 557         adapter->allocated = 0;
 558         if (!card->adapters_allocated) {
 559                 struct sliccard *curr_card = slic_global.slic_card;
 560                 if (curr_card == card) {
 561                         slic_global.slic_card = card->next;
 562                 } else {
 563                         while (curr_card->next != card)
 564                                 curr_card = curr_card->next;
 565                         ASSERT(curr_card);
 566                         curr_card->next = card->next;
 567                 }
 568                 ASSERT(slic_global.num_slic_cards);
 569                 slic_global.num_slic_cards--;
 570                 slic_card_cleanup(card);
 571         }
 572         kfree(dev);
 573         pci_release_regions(pcidev);
 574 }
 575
 576 static int slic_entry_halt(struct net_device *dev)
 577 {
 578         struct adapter *adapter = (struct adapter *)netdev_priv(dev);
 579         struct sliccard *card = adapter->card;
 580         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
 581
 582         spin_lock_irqsave(&slic_global.driver_lock.lock,
 583                                 slic_global.driver_lock.flags);
 584         ASSERT(card);
 585         netif_stop_queue(adapter->netdev);
 586         adapter->state = ADAPT_DOWN;
 587         adapter->linkstate = LINK_DOWN;
 588         adapter->upr_list = NULL;
 589         adapter->upr_busy = 0;
 590         adapter->devflags_prev = 0;
 591         ASSERT(card->adapter[adapter->cardindex] == adapter);
 592         slic_reg32_write(&slic_regs->slic_icr, ICR_INT_OFF, FLUSH);
 593         adapter->all_reg_writes++;
 594         adapter->icr_reg_writes++;
 595         slic_config_clear(adapter);
 596         if (adapter->activated) {
 597                 card->adapters_activated--;
 598                 slic_global.num_slic_ports_active--;
 599                 adapter->activated = 0;
 600         }
 601 #ifdef AUTOMATIC_RESET
 602         slic_reg32_write(&slic_regs->slic_reset_iface, 0, FLUSH);
 603 #endif
 604         /*
 605          *  Reset the adapter's cmd queues
 606          */
 607         slic_cmdq_reset(adapter);
 608
 609 #ifdef AUTOMATIC_RESET
 610         if (!card->adapters_activated)
 611                 slic_card_init(card, adapter);
 612 #endif
 613
 614         spin_unlock_irqrestore(&slic_global.driver_lock.lock,
 615                                 slic_global.driver_lock.flags);
 616         return STATUS_SUCCESS;
 617 }
 618
 619 static int slic_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 620 {
 621         struct adapter *adapter = (struct adapter *)netdev_priv(dev);
 622         struct ethtool_cmd edata;
 623         struct ethtool_cmd ecmd;
 624         u32 data[7];
 625         u32 intagg;
 626
 627         ASSERT(rq);
 628         switch (cmd) {
 629         case SIOCSLICSETINTAGG:
 630                 if (copy_from_user(data, rq->ifr_data, 28))
 631                         return -EFAULT;
 632                 intagg = data[0];
 633                 dev_err(&dev->dev, "%s: set interrupt aggregation to %d\n",
 634                         __func__, intagg);
 635                 slic_intagg_set(adapter, intagg);
 636                 return 0;
 637
 638 #ifdef SLIC_TRACE_DUMP_ENABLED
 639         case SIOCSLICTRACEDUMP:
 640                 {
 641                         u32 value;
 642                         DBG_IOCTL("slic_ioctl  SIOCSLIC_TRACE_DUMP\n");
 643
 644                         if (copy_from_user(data, rq->ifr_data, 28)) {
 645                                 PRINT_ERROR
 646                                     ("slic: copy_from_user FAILED getting \
 647                                      initial simba param\n");
 648                                 return -EFAULT;
 649                         }
 650
 651                         value = data[0];
 652                         if (tracemon_request == SLIC_DUMP_DONE) {
 653                                 PRINT_ERROR
 654                                     ("ATK Diagnostic Trace Dump Requested\n");
 655                                 tracemon_request = SLIC_DUMP_REQUESTED;
 656                                 tracemon_request_type = value;
 657                                 tracemon_timestamp = jiffies;
 658                         } else if ((tracemon_request == SLIC_DUMP_REQUESTED) ||
 659                                    (tracemon_request ==
 660                                     SLIC_DUMP_IN_PROGRESS)) {
 661                                 PRINT_ERROR
 662                                     ("ATK Diagnostic Trace Dump Requested but \
 663                                      already in progress... ignore\n");
 664                         } else {
 665                                 PRINT_ERROR
 666                                     ("ATK Diagnostic Trace Dump Requested\n");
 667                                 tracemon_request = SLIC_DUMP_REQUESTED;
 668                                 tracemon_request_type = value;
 669                                 tracemon_timestamp = jiffies;
 670                         }
 671                         return 0;
 672                 }
 673 #endif
 674         case SIOCETHTOOL:
 675                 ASSERT(adapter);
 676                 if (copy_from_user(&ecmd, rq->ifr_data, sizeof(ecmd)))
 677                         return -EFAULT;
 678
 679                 if (ecmd.cmd == ETHTOOL_GSET) {
 680                         edata.supported = (SUPPORTED_10baseT_Half |
 681                                            SUPPORTED_10baseT_Full |
 682                                            SUPPORTED_100baseT_Half |
 683                                            SUPPORTED_100baseT_Full |
 684                                            SUPPORTED_Autoneg | SUPPORTED_MII);
 685                         edata.port = PORT_MII;
 686                         edata.transceiver = XCVR_INTERNAL;
 687                         edata.phy_address = 0;
 688                         if (adapter->linkspeed == LINK_100MB)
 689                                 edata.speed = SPEED_100;
 690                         else if (adapter->linkspeed == LINK_10MB)
 691                                 edata.speed = SPEED_10;
 692                         else
 693                                 edata.speed = 0;
 694
 695                         if (adapter->linkduplex == LINK_FULLD)
 696                                 edata.duplex = DUPLEX_FULL;
 697                         else
 698                                 edata.duplex = DUPLEX_HALF;
 699
 700                         edata.autoneg = AUTONEG_ENABLE;
 701                         edata.maxtxpkt = 1;
 702                         edata.maxrxpkt = 1;
 703                         if (copy_to_user(rq->ifr_data, &edata, sizeof(edata)))
 704                                 return -EFAULT;
 705
 706                 } else if (ecmd.cmd == ETHTOOL_SSET) {
 707                         if (!capable(CAP_NET_ADMIN))
 708                                 return -EPERM;
 709
 710                         if (adapter->linkspeed == LINK_100MB)
 711                                 edata.speed = SPEED_100;
 712                         else if (adapter->linkspeed == LINK_10MB)
 713                                 edata.speed = SPEED_10;
 714                         else
 715                                 edata.speed = 0;
 716
 717                         if (adapter->linkduplex == LINK_FULLD)
 718                                 edata.duplex = DUPLEX_FULL;
 719                         else
 720                                 edata.duplex = DUPLEX_HALF;
 721
 722                         edata.autoneg = AUTONEG_ENABLE;
 723                         edata.maxtxpkt = 1;
 724                         edata.maxrxpkt = 1;
 725                         if ((ecmd.speed != edata.speed) ||
 726                             (ecmd.duplex != edata.duplex)) {
 727                                 u32 speed;
 728                                 u32 duplex;
 729
 730                                 if (ecmd.speed == SPEED_10)
 731                                         speed = 0;
 732                                 else
 733                                         speed = PCR_SPEED_100;
 734                                 if (ecmd.duplex == DUPLEX_FULL)
 735                                         duplex = PCR_DUPLEX_FULL;
 736                                 else
 737                                         duplex = 0;
 738                                 slic_link_config(adapter, speed, duplex);
 739                                 slic_link_event_handler(adapter);
 740                         }
 741                 }
 742                 return 0;
 743         default:
 744                 return -EOPNOTSUPP;
 745         }
 746 }
 747
 748 #define  XMIT_FAIL_LINK_STATE               1
 749 #define  XMIT_FAIL_ZERO_LENGTH              2
 750 #define  XMIT_FAIL_HOSTCMD_FAIL             3
 751
 752 static void slic_xmit_build_request(struct adapter *adapter,
 753                              struct slic_hostcmd *hcmd, struct sk_buff *skb)
 754 {
 755         struct slic_host64_cmd *ihcmd;
 756         ulong phys_addr;
 757
 758         ihcmd = &hcmd->cmd64;
 759
 760         ihcmd->flags = (adapter->port << IHFLG_IFSHFT);
 761         ihcmd->command = IHCMD_XMT_REQ;
 762         ihcmd->u.slic_buffers.totlen = skb->len;
 763         phys_addr = pci_map_single(adapter->pcidev, skb->data, skb->len,
 764                         PCI_DMA_TODEVICE);
 765         ihcmd->u.slic_buffers.bufs[0].paddrl = SLIC_GET_ADDR_LOW(phys_addr);
 766         ihcmd->u.slic_buffers.bufs[0].paddrh = SLIC_GET_ADDR_HIGH(phys_addr);
 767         ihcmd->u.slic_buffers.bufs[0].length = skb->len;
 768 #if defined(CONFIG_X86_64)
 769         hcmd->cmdsize = (u32) ((((u64)&ihcmd->u.slic_buffers.bufs[1] -
 770                                      (u64) hcmd) + 31) >> 5);
 771 #elif defined(CONFIG_X86)
 772         hcmd->cmdsize = ((((u32) &ihcmd->u.slic_buffers.bufs[1] -
 773                            (u32) hcmd) + 31) >> 5);
 774 #else
 775         Stop Compilation;
 776 #endif
 777 }
 778
 779 #define NORMAL_ETHFRAME     0
 780
 781 static int slic_xmit_start(struct sk_buff *skb, struct net_device *dev)
 782 {
 783         struct sliccard *card;
 784         struct adapter *adapter = (struct adapter *)netdev_priv(dev);
 785         struct slic_hostcmd *hcmd = NULL;
 786         u32 status = 0;
 787         u32 skbtype = NORMAL_ETHFRAME;
 788         void *offloadcmd = NULL;
 789
 790         card = adapter->card;
 791         ASSERT(card);
 792         if ((adapter->linkstate != LINK_UP) ||
 793             (adapter->state != ADAPT_UP) || (card->state != CARD_UP)) {
 794                 status = XMIT_FAIL_LINK_STATE;
 795                 goto xmit_fail;
 796
 797         } else if (skb->len == 0) {
 798                 status = XMIT_FAIL_ZERO_LENGTH;
 799                 goto xmit_fail;
 800         }
 801
 802         if (skbtype == NORMAL_ETHFRAME) {
 803                 hcmd = slic_cmdq_getfree(adapter);
 804                 if (!hcmd) {
 805                         adapter->xmitq_full = 1;
 806                         status = XMIT_FAIL_HOSTCMD_FAIL;
 807                         goto xmit_fail;
 808                 }
 809                 ASSERT(hcmd->pslic_handle);
 810                 ASSERT(hcmd->cmd64.hosthandle ==
 811                        hcmd->pslic_handle->token.handle_token);
 812                 hcmd->skb = skb;
 813                 hcmd->busy = 1;
 814                 hcmd->type = SLIC_CMD_DUMB;
 815                 if (skbtype == NORMAL_ETHFRAME)
 816                         slic_xmit_build_request(adapter, hcmd, skb);
 817         }
 818         adapter->stats.tx_packets++;
 819         adapter->stats.tx_bytes += skb->len;
 820
 821 #ifdef DEBUG_DUMP
 822         if (adapter->kill_card) {
 823                 struct slic_host64_cmd ihcmd;
 824
 825                 ihcmd = &hcmd->cmd64;
 826
 827                 ihcmd->flags |= 0x40;
 828                 adapter->kill_card = 0; /* only do this once */
 829         }
 830 #endif
 831         if (hcmd->paddrh == 0) {
 832                 slic_reg32_write(&adapter->slic_regs->slic_cbar,
 833                                  (hcmd->paddrl | hcmd->cmdsize), DONT_FLUSH);
 834         } else {
 835                 slic_reg64_write(adapter, &adapter->slic_regs->slic_cbar64,
 836                                  (hcmd->paddrl | hcmd->cmdsize),
 837                                  &adapter->slic_regs->slic_addr_upper,
 838                                  hcmd->paddrh, DONT_FLUSH);
 839         }
 840 xmit_done:
 841         return 0;
 842 xmit_fail:
 843         slic_xmit_fail(adapter, skb, offloadcmd, skbtype, status);
 844         goto xmit_done;
 845 }
 846
 847 static void slic_xmit_fail(struct adapter *adapter,
 848                     struct sk_buff *skb,
 849                     void *cmd, u32 skbtype, u32 status)
 850 {
 851         if (adapter->xmitq_full)
 852                 netif_stop_queue(adapter->netdev);
 853         if ((cmd == NULL) && (status <= XMIT_FAIL_HOSTCMD_FAIL)) {
 854                 switch (status) {
 855                 case XMIT_FAIL_LINK_STATE:
 856                         dev_err(&adapter->netdev->dev,
 857                                 "reject xmit skb[%p: %x] linkstate[%s] "
 858                                 "adapter[%s:%d] card[%s:%d]\n",
 859                                 skb, skb->pkt_type,
 860                                 SLIC_LINKSTATE(adapter->linkstate),
 861                                 SLIC_ADAPTER_STATE(adapter->state),
 862                                 adapter->state,
 863                                 SLIC_CARD_STATE(adapter->card->state),
 864                                 adapter->card->state);
 865                         break;
 866                 case XMIT_FAIL_ZERO_LENGTH:
 867                         dev_err(&adapter->netdev->dev,
 868                                 "xmit_start skb->len == 0 skb[%p] type[%x]\n",
 869                                 skb, skb->pkt_type);
 870                         break;
 871                 case XMIT_FAIL_HOSTCMD_FAIL:
 872                         dev_err(&adapter->netdev->dev,
 873                                 "xmit_start skb[%p] type[%x] No host commands "
 874                                 "available\n", skb, skb->pkt_type);
 875                         break;
 876                 default:
 877                         ASSERT(0);
 878                 }
 879         }
 880         dev_kfree_skb(skb);
 881         adapter->stats.tx_dropped++;
 882 }
 883
 884 static void slic_rcv_handle_error(struct adapter *adapter,
 885                                         struct slic_rcvbuf *rcvbuf)
 886 {
 887         struct slic_hddr_wds *hdr = (struct slic_hddr_wds *)rcvbuf->data;
 888
 889         if (adapter->devid != SLIC_1GB_DEVICE_ID) {
 890                 if (hdr->frame_status14 & VRHSTAT_802OE)
 891                         adapter->if_events.oflow802++;
 892                 if (hdr->frame_status14 & VRHSTAT_TPOFLO)
 893                         adapter->if_events.Tprtoflow++;
 894                 if (hdr->frame_status_b14 & VRHSTATB_802UE)
 895                         adapter->if_events.uflow802++;
 896                 if (hdr->frame_status_b14 & VRHSTATB_RCVE) {
 897                         adapter->if_events.rcvearly++;
 898                         adapter->stats.rx_fifo_errors++;
 899                 }
 900                 if (hdr->frame_status_b14 & VRHSTATB_BUFF) {
 901                         adapter->if_events.Bufov++;
 902                         adapter->stats.rx_over_errors++;
 903                 }
 904                 if (hdr->frame_status_b14 & VRHSTATB_CARRE) {
 905                         adapter->if_events.Carre++;
 906                         adapter->stats.tx_carrier_errors++;
 907                 }
 908                 if (hdr->frame_status_b14 & VRHSTATB_LONGE)
 909                         adapter->if_events.Longe++;
 910                 if (hdr->frame_status_b14 & VRHSTATB_PREA)
 911                         adapter->if_events.Invp++;
 912                 if (hdr->frame_status_b14 & VRHSTATB_CRC) {
 913                         adapter->if_events.Crc++;
 914                         adapter->stats.rx_crc_errors++;
 915                 }
 916                 if (hdr->frame_status_b14 & VRHSTATB_DRBL)
 917                         adapter->if_events.Drbl++;
 918                 if (hdr->frame_status_b14 & VRHSTATB_CODE)
 919                         adapter->if_events.Code++;
 920                 if (hdr->frame_status_b14 & VRHSTATB_TPCSUM)
 921                         adapter->if_events.TpCsum++;
 922                 if (hdr->frame_status_b14 & VRHSTATB_TPHLEN)
 923                         adapter->if_events.TpHlen++;
 924                 if (hdr->frame_status_b14 & VRHSTATB_IPCSUM)
 925                         adapter->if_events.IpCsum++;
 926                 if (hdr->frame_status_b14 & VRHSTATB_IPLERR)
 927                         adapter->if_events.IpLen++;
 928                 if (hdr->frame_status_b14 & VRHSTATB_IPHERR)
 929                         adapter->if_events.IpHlen++;
 930         } else {
 931                 if (hdr->frame_statusGB & VGBSTAT_XPERR) {
 932                         u32 xerr = hdr->frame_statusGB >> VGBSTAT_XERRSHFT;
 933
 934                         if (xerr == VGBSTAT_XCSERR)
 935                                 adapter->if_events.TpCsum++;
 936                         if (xerr == VGBSTAT_XUFLOW)
 937                                 adapter->if_events.Tprtoflow++;
 938                         if (xerr == VGBSTAT_XHLEN)
 939                                 adapter->if_events.TpHlen++;
 940                 }
 941                 if (hdr->frame_statusGB & VGBSTAT_NETERR) {
 942                         u32 nerr =
 943                             (hdr->
 944                              frame_statusGB >> VGBSTAT_NERRSHFT) &
 945                             VGBSTAT_NERRMSK;
 946                         if (nerr == VGBSTAT_NCSERR)
 947                                 adapter->if_events.IpCsum++;
 948                         if (nerr == VGBSTAT_NUFLOW)
 949                                 adapter->if_events.IpLen++;
 950                         if (nerr == VGBSTAT_NHLEN)
 951                                 adapter->if_events.IpHlen++;
 952                 }
 953                 if (hdr->frame_statusGB & VGBSTAT_LNKERR) {
 954                         u32 lerr = hdr->frame_statusGB & VGBSTAT_LERRMSK;
 955
 956                         if (lerr == VGBSTAT_LDEARLY)
 957                                 adapter->if_events.rcvearly++;
 958                         if (lerr == VGBSTAT_LBOFLO)
 959                                 adapter->if_events.Bufov++;
 960                         if (lerr == VGBSTAT_LCODERR)
 961                                 adapter->if_events.Code++;
 962                         if (lerr == VGBSTAT_LDBLNBL)
 963                                 adapter->if_events.Drbl++;
 964                         if (lerr == VGBSTAT_LCRCERR)
 965                                 adapter->if_events.Crc++;
 966                         if (lerr == VGBSTAT_LOFLO)
 967                                 adapter->if_events.oflow802++;
 968                         if (lerr == VGBSTAT_LUFLO)
 969                                 adapter->if_events.uflow802++;
 970                 }
 971         }
 972         return;
 973 }
 974
 975 #define TCP_OFFLOAD_FRAME_PUSHFLAG  0x10000000
 976 #define M_FAST_PATH                 0x0040
 977
 978 static void slic_rcv_handler(struct adapter *adapter)
 979 {
 980         struct sk_buff *skb;
 981         struct slic_rcvbuf *rcvbuf;
 982         u32 frames = 0;
 983
 984         while ((skb = slic_rcvqueue_getnext(adapter))) {
 985                 u32 rx_bytes;
 986
 987                 ASSERT(skb->head);
 988                 rcvbuf = (struct slic_rcvbuf *)skb->head;
 989                 adapter->card->events++;
 990                 if (rcvbuf->status & IRHDDR_ERR) {
 991                         adapter->rx_errors++;
 992                         slic_rcv_handle_error(adapter, rcvbuf);
 993                         slic_rcvqueue_reinsert(adapter, skb);
 994                         continue;
 995                 }
 996
 997                 if (!slic_mac_filter(adapter, (struct ether_header *)
 998                                         rcvbuf->data)) {
 999                         slic_rcvqueue_reinsert(adapter, skb);
1000                         continue;
1001                 }
1002                 skb_pull(skb, SLIC_RCVBUF_HEADSIZE);
1003                 rx_bytes = (rcvbuf->length & IRHDDR_FLEN_MSK);
1004                 skb_put(skb, rx_bytes);
1005                 adapter->stats.rx_packets++;
1006                 adapter->stats.rx_bytes += rx_bytes;
1007 #if SLIC_OFFLOAD_IP_CHECKSUM
1008                 skb->ip_summed = CHECKSUM_UNNECESSARY;
1009 #endif
1010
1011                 skb->dev = adapter->netdev;
1012                 skb->protocol = eth_type_trans(skb, skb->dev);
1013                 netif_rx(skb);
1014
1015                 ++frames;
1016 #if SLIC_INTERRUPT_PROCESS_LIMIT
1017                 if (frames >= SLIC_RCVQ_MAX_PROCESS_ISR) {
1018                         adapter->rcv_interrupt_yields++;
1019                         break;
1020                 }
1021 #endif
1022         }
1023         adapter->max_isr_rcvs = max(adapter->max_isr_rcvs, frames);
1024 }
1025
1026 static void slic_xmit_complete(struct adapter *adapter)
1027 {
1028         struct slic_hostcmd *hcmd;
1029         struct slic_rspbuf *rspbuf;
1030         u32 frames = 0;
1031         struct slic_handle_word slic_handle_word;
1032
1033         do {
1034                 rspbuf = slic_rspqueue_getnext(adapter);
1035                 if (!rspbuf)
1036                         break;
1037                 adapter->xmit_completes++;
1038                 adapter->card->events++;
1039                 /*
1040                  Get the complete host command buffer
1041                 */
1042                 slic_handle_word.handle_token = rspbuf->hosthandle;
1043                 ASSERT(slic_handle_word.handle_index);
1044                 ASSERT(slic_handle_word.handle_index <= SLIC_CMDQ_MAXCMDS);
1045                 hcmd =
1046                     (struct slic_hostcmd *)
1047                         adapter->slic_handles[slic_handle_word.handle_index].
1048                                                                         address;
1049 /*      hcmd = (struct slic_hostcmd *) rspbuf->hosthandle; */
1050                 ASSERT(hcmd);
1051                 ASSERT(hcmd->pslic_handle ==
1052                        &adapter->slic_handles[slic_handle_word.handle_index]);
1053                 if (hcmd->type == SLIC_CMD_DUMB) {
1054                         if (hcmd->skb)
1055                                 dev_kfree_skb_irq(hcmd->skb);
1056                         slic_cmdq_putdone_irq(adapter, hcmd);
1057                 }
1058                 rspbuf->status = 0;
1059                 rspbuf->hosthandle = 0;
1060                 frames++;
1061         } while (1);
1062         adapter->max_isr_xmits = max(adapter->max_isr_xmits, frames);
1063 }
1064
1065 static irqreturn_t slic_interrupt(int irq, void *dev_id)
1066 {
1067         struct net_device *dev = (struct net_device *)dev_id;
1068         struct adapter *adapter = (struct adapter *)netdev_priv(dev);
1069         u32 isr;
1070
1071         if ((adapter->pshmem) && (adapter->pshmem->isr)) {
1072                 slic_reg32_write(&adapter->slic_regs->slic_icr,
1073                                  ICR_INT_MASK, FLUSH);
1074                 isr = adapter->isrcopy = adapter->pshmem->isr;
1075                 adapter->pshmem->isr = 0;
1076                 adapter->num_isrs++;
1077                 switch (adapter->card->state) {
1078                 case CARD_UP:
1079                         if (isr & ~ISR_IO) {
1080                                 if (isr & ISR_ERR) {
1081                                         adapter->error_interrupts++;
1082                                         if (isr & ISR_RMISS) {
1083                                                 int count;
1084                                                 int pre_count;
1085                                                 int errors;
1086
1087                                                 struct slic_rcvqueue *rcvq =
1088                                                     &adapter->rcvqueue;
1089
1090                                                 adapter->
1091                                                     error_rmiss_interrupts++;
1092                                                 if (!rcvq->errors)
1093                                                         rcv_count = rcvq->count;
1094                                                 pre_count = rcvq->count;
1095                                                 errors = rcvq->errors;
1096
1097                                                 while (rcvq->count <
1098                                                        SLIC_RCVQ_FILLTHRESH) {
1099                                                         count =
1100                                                             slic_rcvqueue_fill
1101                                                             (adapter);
1102                                                         if (!count)
1103                                                                 break;
1104                                                 }
1105                                         } else if (isr & ISR_XDROP) {
1106                                                 dev_err(&dev->dev,
1107                                                         "isr & ISR_ERR [%x] "
1108                                                         "ISR_XDROP \n", isr);
1109                                         } else {
1110                                                 dev_err(&dev->dev,
1111                                                         "isr & ISR_ERR [%x]\n",
1112                                                         isr);
1113                                         }
1114                                 }
1115
1116                                 if (isr & ISR_LEVENT) {
1117                                         adapter->linkevent_interrupts++;
1118                                         slic_link_event_handler(adapter);
1119                                 }
1120
1121                                 if ((isr & ISR_UPC) ||
1122                                     (isr & ISR_UPCERR) || (isr & ISR_UPCBSY)) {
1123                                         adapter->upr_interrupts++;
1124                                         slic_upr_request_complete(adapter, isr);
1125                                 }
1126                         }
1127
1128                         if (isr & ISR_RCV) {
1129                                 adapter->rcv_interrupts++;
1130                                 slic_rcv_handler(adapter);
1131                         }
1132
1133                         if (isr & ISR_CMD) {
1134                                 adapter->xmit_interrupts++;
1135                                 slic_xmit_complete(adapter);
1136                         }
1137                         break;
1138
1139                 case CARD_DOWN:
1140                         if ((isr & ISR_UPC) ||
1141                             (isr & ISR_UPCERR) || (isr & ISR_UPCBSY)) {
1142                                 adapter->upr_interrupts++;
1143                                 slic_upr_request_complete(adapter, isr);
1144                         }
1145                         break;
1146
1147                 default:
1148                         break;
1149                 }
1150
1151                 adapter->isrcopy = 0;
1152                 adapter->all_reg_writes += 2;
1153                 adapter->isr_reg_writes++;
1154                 slic_reg32_write(&adapter->slic_regs->slic_isr, 0, FLUSH);
1155         } else {
1156                 adapter->false_interrupts++;
1157         }
1158         return IRQ_HANDLED;
1159 }
1160
1161 /*
1162  * slic_link_event_handler -
1163  *
1164  * Initiate a link configuration sequence.  The link configuration begins
1165  * by issuing a READ_LINK_STATUS command to the Utility Processor on the
1166  * SLIC.  Since the command finishes asynchronously, the slic_upr_comlete
1167  * routine will follow it up witha UP configuration write command, which
1168  * will also complete asynchronously.
1169  *
1170  */
1171 static void slic_link_event_handler(struct adapter *adapter)
1172 {
1173         int status;
1174         struct slic_shmem *pshmem;
1175
1176         if (adapter->state != ADAPT_UP) {
1177                 /* Adapter is not operational.  Ignore.  */
1178                 return;
1179         }
1180
1181         pshmem = (struct slic_shmem *)adapter->phys_shmem;
1182
1183 #if defined(CONFIG_X86_64)
1184         status = slic_upr_request(adapter,
1185                                   SLIC_UPR_RLSR,
1186                                   SLIC_GET_ADDR_LOW(&pshmem->linkstatus),
1187                                   SLIC_GET_ADDR_HIGH(&pshmem->linkstatus),
1188                                   0, 0);
1189 #elif defined(CONFIG_X86)
1190         status = slic_upr_request(adapter, SLIC_UPR_RLSR,
1191                 (u32) &pshmem->linkstatus,      /* no 4GB wrap guaranteed */
1192                                   0, 0, 0);
1193 #else
1194         Stop compilation;
1195 #endif
1196         ASSERT((status == STATUS_SUCCESS) || (status == STATUS_PENDING));
1197 }
1198
1199 static void slic_init_cleanup(struct adapter *adapter)
1200 {
1201         if (adapter->intrregistered) {
1202                 adapter->intrregistered = 0;
1203                 free_irq(adapter->netdev->irq, adapter->netdev);
1204
1205         }
1206         if (adapter->pshmem) {
1207                 pci_free_consistent(adapter->pcidev,
1208                                     sizeof(struct slic_shmem),
1209                                     adapter->pshmem, adapter->phys_shmem);
1210                 adapter->pshmem = NULL;
1211                 adapter->phys_shmem = (dma_addr_t) NULL;
1212         }
1213
1214         if (adapter->pingtimerset) {
1215                 adapter->pingtimerset = 0;
1216                 del_timer(&adapter->pingtimer);
1217         }
1218
1219         slic_rspqueue_free(adapter);
1220         slic_cmdq_free(adapter);
1221         slic_rcvqueue_free(adapter);
1222 }
1223
1224 static struct net_device_stats *slic_get_stats(struct net_device *dev)
1225 {
1226         struct adapter *adapter = (struct adapter *)netdev_priv(dev);
1227         struct net_device_stats *stats;
1228
1229         ASSERT(adapter);
1230         stats = &adapter->stats;
1231         stats->collisions = adapter->slic_stats.iface.xmit_collisions;
1232         stats->rx_errors = adapter->slic_stats.iface.rcv_errors;
1233         stats->tx_errors = adapter->slic_stats.iface.xmt_errors;
1234         stats->rx_missed_errors = adapter->slic_stats.iface.rcv_discards;
1235         stats->tx_heartbeat_errors = 0;
1236         stats->tx_aborted_errors = 0;
1237         stats->tx_window_errors = 0;
1238         stats->tx_fifo_errors = 0;
1239         stats->rx_frame_errors = 0;
1240         stats->rx_length_errors = 0;
1241         return &adapter->stats;
1242 }
1243
1244 /*
1245  *  Allocate a mcast_address structure to hold the multicast address.
1246  *  Link it in.
1247  */
1248 static int slic_mcast_add_list(struct adapter *adapter, char *address)
1249 {
1250         struct mcast_address *mcaddr, *mlist;
1251         bool equaladdr;
1252
1253         /* Check to see if it already exists */
1254         mlist = adapter->mcastaddrs;
1255         while (mlist) {
1256                 ETHER_EQ_ADDR(mlist->address, address, equaladdr);
1257                 if (equaladdr)
1258                         return STATUS_SUCCESS;
1259                 mlist = mlist->next;
1260         }
1261
1262         /* Doesn't already exist.  Allocate a structure to hold it */
1263         mcaddr = kmalloc(sizeof(struct mcast_address), GFP_KERNEL);
1264         if (mcaddr == NULL)
1265                 return 1;
1266
1267         memcpy(mcaddr->address, address, 6);
1268
1269         mcaddr->next = adapter->mcastaddrs;
1270         adapter->mcastaddrs = mcaddr;
1271
1272         return STATUS_SUCCESS;
1273 }
1274
1275 /*
1276  * Functions to obtain the CRC corresponding to the destination mac address.
1277  * This is a standard ethernet CRC in that it is a 32-bit, reflected CRC using
1278  * the polynomial:
1279  *   x^32 + x^26 + x^23 + x^22 + x^16 + x^12 + x^11 + x^10 + x^8 + x^7 + x^5 +
1280  *   x^4 + x^2 + x^1.
1281  *
1282  * After the CRC for the 6 bytes is generated (but before the value is
1283  * complemented),
1284  * we must then transpose the value and return bits 30-23.
1285  *
1286  */
1287 static u32 slic_crc_table[256]; /* Table of CRCs for all possible byte values */
1288 static u32 slic_crc_init;       /* Is table initialized */
1289
1290 /*
1291  *  Contruct the CRC32 table
1292  */
1293 static void slic_mcast_init_crc32(void)
1294 {
1295         u32 c;          /*  CRC shit reg                 */
1296         u32 e = 0;              /*  Poly X-or pattern            */
1297         int i;                  /*  counter                      */
1298         int k;                  /*  byte being shifted into crc  */
1299
1300         static int p[] = { 0, 1, 2, 4, 5, 7, 8, 10, 11, 12, 16, 22, 23, 26 };
1301
1302         for (i = 0; i < sizeof(p) / sizeof(int); i++)
1303                 e |= 1L << (31 - p[i]);
1304
1305         for (i = 1; i < 256; i++) {
1306                 c = i;
1307                 for (k = 8; k; k--)
1308                         c = c & 1 ? (c >> 1) ^ e : c >> 1;
1309                 slic_crc_table[i] = c;
1310         }
1311 }
1312
1313 /*
1314  *  Return the MAC hast as described above.
1315  */
1316 static unsigned char slic_mcast_get_mac_hash(char *macaddr)
1317 {
1318         u32 crc;
1319         char *p;
1320         int i;
1321         unsigned char machash = 0;
1322
1323         if (!slic_crc_init) {
1324                 slic_mcast_init_crc32();
1325                 slic_crc_init = 1;
1326         }
1327
1328         crc = 0xFFFFFFFF;       /* Preload shift register, per crc-32 spec */
1329         for (i = 0, p = macaddr; i < 6; ++p, ++i)
1330                 crc = (crc >> 8) ^ slic_crc_table[(crc ^ *p) & 0xFF];
1331
1332         /* Return bits 1-8, transposed */
1333         for (i = 1; i < 9; i++)
1334                 machash |= (((crc >> i) & 1) << (8 - i));
1335
1336         return machash;
1337 }
1338
1339 static void slic_mcast_set_bit(struct adapter *adapter, char *address)
1340 {
1341         unsigned char crcpoly;
1342
1343         /* Get the CRC polynomial for the mac address */
1344         crcpoly = slic_mcast_get_mac_hash(address);
1345
1346         /* We only have space on the SLIC for 64 entries.  Lop
1347          * off the top two bits. (2^6 = 64)
1348          */
1349         crcpoly &= 0x3F;
1350
1351         /* OR in the new bit into our 64 bit mask. */
1352         adapter->mcastmask |= (u64) 1 << crcpoly;
1353 }
1354
1355 static void slic_mcast_set_list(struct net_device *dev)
1356 {
1357         struct adapter *adapter = (struct adapter *)netdev_priv(dev);
1358         int status = STATUS_SUCCESS;
1359         int i;
1360         char *addresses;
1361         struct dev_mc_list *mc_list = dev->mc_list;
1362         int mc_count = dev->mc_count;
1363
1364         ASSERT(adapter);
1365
1366         for (i = 1; i <= mc_count; i++) {
1367                 addresses = (char *) &mc_list->dmi_addr;
1368                 if (mc_list->dmi_addrlen == 6) {
1369                         status = slic_mcast_add_list(adapter, addresses);
1370                         if (status != STATUS_SUCCESS)
1371                                 break;
1372                 } else {
1373                         status = -EINVAL;
1374                         break;
1375                 }
1376                 slic_mcast_set_bit(adapter, addresses);
1377                 mc_list = mc_list->next;
1378         }
1379
1380         if (adapter->devflags_prev != dev->flags) {
1381                 adapter->macopts = MAC_DIRECTED;
1382                 if (dev->flags) {
1383                         if (dev->flags & IFF_BROADCAST)
1384                                 adapter->macopts |= MAC_BCAST;
1385                         if (dev->flags & IFF_PROMISC)
1386                                 adapter->macopts |= MAC_PROMISC;
1387                         if (dev->flags & IFF_ALLMULTI)
1388                                 adapter->macopts |= MAC_ALLMCAST;
1389                         if (dev->flags & IFF_MULTICAST)
1390                                 adapter->macopts |= MAC_MCAST;
1391                 }
1392                 adapter->devflags_prev = dev->flags;
1393                 slic_config_set(adapter, true);
1394         } else {
1395                 if (status == STATUS_SUCCESS)
1396                         slic_mcast_set_mask(adapter);
1397         }
1398         return;
1399 }
1400
1401 static void slic_mcast_set_mask(struct adapter *adapter)
1402 {
1403         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
1404
1405         if (adapter->macopts & (MAC_ALLMCAST | MAC_PROMISC)) {
1406                 /* Turn on all multicast addresses. We have to do this for
1407                  * promiscuous mode as well as ALLMCAST mode.  It saves the
1408                  * Microcode from having to keep state about the MAC
1409                  * configuration.
1410                  */
1411                 slic_reg32_write(&slic_regs->slic_mcastlow, 0xFFFFFFFF, FLUSH);
1412                 slic_reg32_write(&slic_regs->slic_mcasthigh, 0xFFFFFFFF,
1413                                  FLUSH);
1414         } else {
1415                 /* Commit our multicast mast to the SLIC by writing to the
1416                  * multicast address mask registers
1417                  */
1418                 slic_reg32_write(&slic_regs->slic_mcastlow,
1419                         (u32)(adapter->mcastmask & 0xFFFFFFFF), FLUSH);
1420                 slic_reg32_write(&slic_regs->slic_mcasthigh,
1421                         (u32)((adapter->mcastmask >> 32) & 0xFFFFFFFF), FLUSH);
1422         }
1423 }
1424
1425 static void slic_timer_ping(ulong dev)
1426 {
1427         struct adapter *adapter;
1428         struct sliccard *card;
1429
1430         ASSERT(dev);
1431         adapter = netdev_priv((struct net_device *)dev);
1432         ASSERT(adapter);
1433         card = adapter->card;
1434         ASSERT(card);
1435
1436         adapter->pingtimer.expires = jiffies + (PING_TIMER_INTERVAL * HZ);
1437         add_timer(&adapter->pingtimer);
1438 }
1439
1440 /*
1441  *  slic_if_init
1442  *
1443  *  Perform initialization of our slic interface.
1444  *
1445  */
1446 static int slic_if_init(struct adapter *adapter)
1447 {
1448         struct sliccard *card = adapter->card;
1449         struct net_device *dev = adapter->netdev;
1450         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
1451         struct slic_shmem *pshmem;
1452         int status = 0;
1453
1454         ASSERT(card);
1455
1456         /* adapter should be down at this point */
1457         if (adapter->state != ADAPT_DOWN) {
1458                 dev_err(&dev->dev, "%s: adapter->state != ADAPT_DOWN\n",
1459                         __func__);
1460                 return -EIO;
1461         }
1462         ASSERT(adapter->linkstate == LINK_DOWN);
1463
1464         adapter->devflags_prev = dev->flags;
1465         adapter->macopts = MAC_DIRECTED;
1466         if (dev->flags) {
1467                 if (dev->flags & IFF_BROADCAST)
1468                         adapter->macopts |= MAC_BCAST;
1469                 if (dev->flags & IFF_PROMISC)
1470                         adapter->macopts |= MAC_PROMISC;
1471                 if (dev->flags & IFF_ALLMULTI)
1472                         adapter->macopts |= MAC_ALLMCAST;
1473                 if (dev->flags & IFF_MULTICAST)
1474                         adapter->macopts |= MAC_MCAST;
1475         }
1476         status = slic_adapter_allocresources(adapter);
1477         if (status != STATUS_SUCCESS) {
1478                 dev_err(&dev->dev,
1479                         "%s: slic_adapter_allocresources FAILED %x\n",
1480                         __func__, status);
1481                 slic_adapter_freeresources(adapter);
1482                 return status;
1483         }
1484
1485         if (!adapter->queues_initialized) {
1486                 if (slic_rspqueue_init(adapter))
1487                         return -ENOMEM;
1488                 if (slic_cmdq_init(adapter))
1489                         return -ENOMEM;
1490                 if (slic_rcvqueue_init(adapter))
1491                         return -ENOMEM;
1492                 adapter->queues_initialized = 1;
1493         }
1494
1495         slic_reg32_write(&slic_regs->slic_icr, ICR_INT_OFF, FLUSH);
1496         mdelay(1);
1497
1498         if (!adapter->isp_initialized) {
1499                 pshmem = (struct slic_shmem *)adapter->phys_shmem;
1500
1501                 spin_lock_irqsave(&adapter->bit64reglock.lock,
1502                                         adapter->bit64reglock.flags);
1503
1504 #if defined(CONFIG_X86_64)
1505                 slic_reg32_write(&slic_regs->slic_addr_upper,
1506                                  SLIC_GET_ADDR_HIGH(&pshmem->isr), DONT_FLUSH);
1507                 slic_reg32_write(&slic_regs->slic_isp,
1508                                  SLIC_GET_ADDR_LOW(&pshmem->isr), FLUSH);
1509 #elif defined(CONFIG_X86)
1510                 slic_reg32_write(&slic_regs->slic_addr_upper, 0, DONT_FLUSH);
1511                 slic_reg32_write(&slic_regs->slic_isp, (u32)&pshmem->isr, FLUSH);
1512 #else
1513                 Stop Compilations
1514 #endif
1515                 spin_unlock_irqrestore(&adapter->bit64reglock.lock,
1516                                         adapter->bit64reglock.flags);
1517                 adapter->isp_initialized = 1;
1518         }
1519
1520         adapter->state = ADAPT_UP;
1521         if (!card->loadtimerset) {
1522                 init_timer(&card->loadtimer);
1523                 card->loadtimer.expires =
1524                     jiffies + (SLIC_LOADTIMER_PERIOD * HZ);
1525                 card->loadtimer.data = (ulong) card;
1526                 card->loadtimer.function = &slic_timer_load_check;
1527                 add_timer(&card->loadtimer);
1528
1529                 card->loadtimerset = 1;
1530         }
1531
1532         if (!adapter->pingtimerset) {
1533                 init_timer(&adapter->pingtimer);
1534                 adapter->pingtimer.expires =
1535                     jiffies + (PING_TIMER_INTERVAL * HZ);
1536                 adapter->pingtimer.data = (ulong) dev;
1537                 adapter->pingtimer.function = &slic_timer_ping;
1538                 add_timer(&adapter->pingtimer);
1539                 adapter->pingtimerset = 1;
1540                 adapter->card->pingstatus = ISR_PINGMASK;
1541         }
1542
1543         /*
1544          *    clear any pending events, then enable interrupts
1545          */
1546         adapter->isrcopy = 0;
1547         adapter->pshmem->isr = 0;
1548         slic_reg32_write(&slic_regs->slic_isr, 0, FLUSH);
1549         slic_reg32_write(&slic_regs->slic_icr, ICR_INT_ON, FLUSH);
1550
1551         slic_link_config(adapter, LINK_AUTOSPEED, LINK_AUTOD);
1552         slic_link_event_handler(adapter);
1553
1554         return STATUS_SUCCESS;
1555 }
1556
1557 static void slic_unmap_mmio_space(struct adapter *adapter)
1558 {
1559         if (adapter->slic_regs)
1560                 iounmap(adapter->slic_regs);
1561         adapter->slic_regs = NULL;
1562 }
1563
1564 static int slic_adapter_allocresources(struct adapter *adapter)
1565 {
1566         if (!adapter->intrregistered) {
1567                 int retval;
1568
1569                 spin_unlock_irqrestore(&slic_global.driver_lock.lock,
1570                                         slic_global.driver_lock.flags);
1571
1572                 retval = request_irq(adapter->netdev->irq,
1573                                      &slic_interrupt,
1574                                      IRQF_SHARED,
1575                                      adapter->netdev->name, adapter->netdev);
1576
1577                 spin_lock_irqsave(&slic_global.driver_lock.lock,
1578                                         slic_global.driver_lock.flags);
1579
1580                 if (retval) {
1581                         dev_err(&adapter->netdev->dev,
1582                                 "request_irq (%s) FAILED [%x]\n",
1583                                 adapter->netdev->name, retval);
1584                         return retval;
1585                 }
1586                 adapter->intrregistered = 1;
1587         }
1588         return STATUS_SUCCESS;
1589 }
1590
1591 static void slic_config_pci(struct pci_dev *pcidev)
1592 {
1593         u16 pci_command;
1594         u16 new_command;
1595
1596         pci_read_config_word(pcidev, PCI_COMMAND, &pci_command);
1597
1598         new_command = pci_command | PCI_COMMAND_MASTER
1599             | PCI_COMMAND_MEMORY
1600             | PCI_COMMAND_INVALIDATE
1601             | PCI_COMMAND_PARITY | PCI_COMMAND_SERR | PCI_COMMAND_FAST_BACK;
1602         if (pci_command != new_command)
1603                 pci_write_config_word(pcidev, PCI_COMMAND, new_command);
1604 }
1605
1606 static void slic_adapter_freeresources(struct adapter *adapter)
1607 {
1608         slic_init_cleanup(adapter);
1609         memset(&adapter->stats, 0, sizeof(struct net_device_stats));
1610         adapter->error_interrupts = 0;
1611         adapter->rcv_interrupts = 0;
1612         adapter->xmit_interrupts = 0;
1613         adapter->linkevent_interrupts = 0;
1614         adapter->upr_interrupts = 0;
1615         adapter->num_isrs = 0;
1616         adapter->xmit_completes = 0;
1617         adapter->rcv_broadcasts = 0;
1618         adapter->rcv_multicasts = 0;
1619         adapter->rcv_unicasts = 0;
1620 }
1621
1622 /*
1623  *  slic_link_config
1624  *
1625  *  Write phy control to configure link duplex/speed
1626  *
1627  */
1628 static void slic_link_config(struct adapter *adapter,
1629                       u32 linkspeed, u32 linkduplex)
1630 {
1631         u32 __iomem *wphy;
1632         u32 speed;
1633         u32 duplex;
1634         u32 phy_config;
1635         u32 phy_advreg;
1636         u32 phy_gctlreg;
1637
1638         if (adapter->state != ADAPT_UP)
1639                 return;
1640
1641         ASSERT((adapter->devid == SLIC_1GB_DEVICE_ID)
1642                || (adapter->devid == SLIC_2GB_DEVICE_ID));
1643
1644         if (linkspeed > LINK_1000MB)
1645                 linkspeed = LINK_AUTOSPEED;
1646         if (linkduplex > LINK_AUTOD)
1647                 linkduplex = LINK_AUTOD;
1648
1649         wphy = &adapter->slic_regs->slic_wphy;
1650
1651         if ((linkspeed == LINK_AUTOSPEED) || (linkspeed == LINK_1000MB)) {
1652                 if (adapter->flags & ADAPT_FLAGS_FIBERMEDIA) {
1653                         /*  We've got a fiber gigabit interface, and register
1654                          *  4 is different in fiber mode than in copper mode
1655                          */
1656
1657                         /* advertise FD only @1000 Mb */
1658                         phy_advreg = (MIICR_REG_4 | (PAR_ADV1000XFD));
1659                         /* enable PAUSE frames        */
1660                         phy_advreg |= PAR_ASYMPAUSE_FIBER;
1661                         slic_reg32_write(wphy, phy_advreg, FLUSH);
1662
1663                         if (linkspeed == LINK_AUTOSPEED) {
1664                                 /* reset phy, enable auto-neg  */
1665                                 phy_config =
1666                                     (MIICR_REG_PCR |
1667                                      (PCR_RESET | PCR_AUTONEG |
1668                                       PCR_AUTONEG_RST));
1669                                 slic_reg32_write(wphy, phy_config, FLUSH);
1670                         } else {        /* forced 1000 Mb FD*/
1671                                 /* power down phy to break link
1672                                    this may not work) */
1673                                 phy_config = (MIICR_REG_PCR | PCR_POWERDOWN);
1674                                 slic_reg32_write(wphy, phy_config, FLUSH);
1675                                 /* wait, Marvell says 1 sec,
1676                                    try to get away with 10 ms  */
1677                                 mdelay(10);
1678
1679                                 /* disable auto-neg, set speed/duplex,
1680                                    soft reset phy, powerup */
1681                                 phy_config =
1682                                     (MIICR_REG_PCR |
1683                                      (PCR_RESET | PCR_SPEED_1000 |
1684                                       PCR_DUPLEX_FULL));
1685                                 slic_reg32_write(wphy, phy_config, FLUSH);
1686                         }
1687                 } else {        /* copper gigabit */
1688
1689                         /* Auto-Negotiate or 1000 Mb must be auto negotiated
1690                          * We've got a copper gigabit interface, and
1691                          * register 4 is different in copper mode than
1692                          * in fiber mode
1693                          */
1694                         if (linkspeed == LINK_AUTOSPEED) {
1695                                 /* advertise 10/100 Mb modes   */
1696                                 phy_advreg =
1697                                     (MIICR_REG_4 |
1698                                      (PAR_ADV100FD | PAR_ADV100HD | PAR_ADV10FD
1699                                       | PAR_ADV10HD));
1700                         } else {
1701                         /* linkspeed == LINK_1000MB -
1702                            don't advertise 10/100 Mb modes  */
1703                                 phy_advreg = MIICR_REG_4;
1704                         }
1705                         /* enable PAUSE frames  */
1706                         phy_advreg |= PAR_ASYMPAUSE;
1707                         /* required by the Cicada PHY  */
1708                         phy_advreg |= PAR_802_3;
1709                         slic_reg32_write(wphy, phy_advreg, FLUSH);
1710                         /* advertise FD only @1000 Mb  */
1711                         phy_gctlreg = (MIICR_REG_9 | (PGC_ADV1000FD));
1712                         slic_reg32_write(wphy, phy_gctlreg, FLUSH);
1713
1714                         if (adapter->subsysid != SLIC_1GB_CICADA_SUBSYS_ID) {
1715                                 /* if a Marvell PHY
1716                                    enable auto crossover */
1717                                 phy_config =
1718                                     (MIICR_REG_16 | (MRV_REG16_XOVERON));
1719                                 slic_reg32_write(wphy, phy_config, FLUSH);
1720
1721                                 /* reset phy, enable auto-neg  */
1722                                 phy_config =
1723                                     (MIICR_REG_PCR |
1724                                      (PCR_RESET | PCR_AUTONEG |
1725                                       PCR_AUTONEG_RST));
1726                                 slic_reg32_write(wphy, phy_config, FLUSH);
1727                         } else {        /* it's a Cicada PHY  */
1728                                 /* enable and restart auto-neg (don't reset)  */
1729                                 phy_config =
1730                                     (MIICR_REG_PCR |
1731                                      (PCR_AUTONEG | PCR_AUTONEG_RST));
1732                                 slic_reg32_write(wphy, phy_config, FLUSH);
1733                         }
1734                 }
1735         } else {
1736                 /* Forced 10/100  */
1737                 if (linkspeed == LINK_10MB)
1738                         speed = 0;
1739                 else
1740                         speed = PCR_SPEED_100;
1741                 if (linkduplex == LINK_HALFD)
1742                         duplex = 0;
1743                 else
1744                         duplex = PCR_DUPLEX_FULL;
1745
1746                 if (adapter->subsysid != SLIC_1GB_CICADA_SUBSYS_ID) {
1747                         /* if a Marvell PHY
1748                            disable auto crossover  */
1749                         phy_config = (MIICR_REG_16 | (MRV_REG16_XOVEROFF));
1750                         slic_reg32_write(wphy, phy_config, FLUSH);
1751                 }
1752
1753                 /* power down phy to break link (this may not work)  */
1754                 phy_config = (MIICR_REG_PCR | (PCR_POWERDOWN | speed | duplex));
1755                 slic_reg32_write(wphy, phy_config, FLUSH);
1756
1757                 /* wait, Marvell says 1 sec, try to get away with 10 ms */
1758                 mdelay(10);
1759
1760                 if (adapter->subsysid != SLIC_1GB_CICADA_SUBSYS_ID) {
1761                         /* if a Marvell PHY
1762                            disable auto-neg, set speed,
1763                            soft reset phy, powerup */
1764                         phy_config =
1765                             (MIICR_REG_PCR | (PCR_RESET | speed | duplex));
1766                         slic_reg32_write(wphy, phy_config, FLUSH);
1767                 } else {        /* it's a Cicada PHY  */
1768                         /* disable auto-neg, set speed, powerup  */
1769                         phy_config = (MIICR_REG_PCR | (speed | duplex));
1770                         slic_reg32_write(wphy, phy_config, FLUSH);
1771                 }
1772         }
1773 }
1774
1775 static void slic_card_cleanup(struct sliccard *card)
1776 {
1777         if (card->loadtimerset) {
1778                 card->loadtimerset = 0;
1779                 del_timer(&card->loadtimer);
1780         }
1781
1782         slic_debug_card_destroy(card);
1783
1784         kfree(card);
1785 }
1786
1787 static int slic_card_download_gbrcv(struct adapter *adapter)
1788 {
1789         const struct firmware *fw;
1790         const char *file = "";
1791         int ret;
1792         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
1793         u32 codeaddr;
1794         u32 instruction;
1795         int index = 0;
1796         u32 rcvucodelen = 0;
1797
1798         switch (adapter->devid) {
1799         case SLIC_2GB_DEVICE_ID:
1800                 file = "slicoss/oasisrcvucode.sys";
1801                 break;
1802         case SLIC_1GB_DEVICE_ID:
1803                 file = "slicoss/gbrcvucode.sys";
1804                 break;
1805         default:
1806                 ASSERT(0);
1807                 break;
1808         }
1809
1810         ret = request_firmware(&fw, file, &adapter->pcidev->dev);
1811         if (ret) {
1812                 dev_err(&adapter->pcidev->dev,
1813                         "SLICOSS: Failed to load firmware %s\n", file);
1814                 return ret;
1815         }
1816
1817         rcvucodelen = *(u32 *)(fw->data + index);
1818         index += 4;
1819         switch (adapter->devid) {
1820         case SLIC_2GB_DEVICE_ID:
1821                 if (rcvucodelen != OasisRcvUCodeLen)
1822                         return -EINVAL;
1823                 break;
1824         case SLIC_1GB_DEVICE_ID:
1825                 if (rcvucodelen != GBRcvUCodeLen)
1826                         return -EINVAL;
1827                 break;
1828         default:
1829                 ASSERT(0);
1830                 break;
1831         }
1832         /* start download */
1833         slic_reg32_write(&slic_regs->slic_rcv_wcs, SLIC_RCVWCS_BEGIN, FLUSH);
1834         /* download the rcv sequencer ucode */
1835         for (codeaddr = 0; codeaddr < rcvucodelen; codeaddr++) {
1836                 /* write out instruction address */
1837                 slic_reg32_write(&slic_regs->slic_rcv_wcs, codeaddr, FLUSH);
1838
1839                 instruction = *(u32 *)(fw->data + index);
1840                 index += 4;
1841                 /* write out the instruction data low addr */
1842                 slic_reg32_write(&slic_regs->slic_rcv_wcs, instruction, FLUSH);
1843
1844                 instruction = *(u8 *)(fw->data + index);
1845                 index++;
1846                 /* write out the instruction data high addr */
1847                 slic_reg32_write(&slic_regs->slic_rcv_wcs, (u8)instruction,
1848                                  FLUSH);
1849         }
1850
1851         /* download finished */
1852         release_firmware(fw);
1853         slic_reg32_write(&slic_regs->slic_rcv_wcs, SLIC_RCVWCS_FINISH, FLUSH);
1854         return 0;
1855 }
1856
1857 static int slic_card_download(struct adapter *adapter)
1858 {
1859         const struct firmware *fw;
1860         const char *file = "";
1861         int ret;
1862         u32 section;
1863         int thissectionsize;
1864         int codeaddr;
1865         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
1866         u32 instruction;
1867         u32 baseaddress;
1868         u32 failure;
1869         u32 i;
1870         u32 numsects = 0;
1871         u32 sectsize[3];
1872         u32 sectstart[3];
1873         int ucode_start, index = 0;
1874
1875         switch (adapter->devid) {
1876         case SLIC_2GB_DEVICE_ID:
1877                 file = "slicoss/oasisdownload.sys";
1878                 break;
1879         case SLIC_1GB_DEVICE_ID:
1880                 file = "slicoss/gbdownload.sys";
1881                 break;
1882         default:
1883                 ASSERT(0);
1884                 break;
1885         }
1886         ret = request_firmware(&fw, file, &adapter->pcidev->dev);
1887         if (ret) {
1888                 dev_err(&adapter->pcidev->dev,
1889                         "SLICOSS: Failed to load firmware %s\n", file);
1890                 return ret;
1891         }
1892         numsects = *(u32 *)(fw->data + index);
1893         index += 4;
1894         ASSERT(numsects <= 3);
1895         for (i = 0; i < numsects; i++) {
1896                 sectsize[i] = *(u32 *)(fw->data + index);
1897                 index += 4;
1898         }
1899         for (i = 0; i < numsects; i++) {
1900                 sectstart[i] = *(u32 *)(fw->data + index);
1901                 index += 4;
1902         }
1903         ucode_start = index;
1904         instruction = *(u32 *)(fw->data + index);
1905         index += 4;
1906         for (section = 0; section < numsects; section++) {
1907                 baseaddress = sectstart[section];
1908                 thissectionsize = sectsize[section] >> 3;
1909
1910                 for (codeaddr = 0; codeaddr < thissectionsize; codeaddr++) {
1911                         /* Write out instruction address */
1912                         slic_reg32_write(&slic_regs->slic_wcs,
1913                                          baseaddress + codeaddr, FLUSH);
1914                         /* Write out instruction to low addr */
1915                         slic_reg32_write(&slic_regs->slic_wcs, instruction, FLUSH);
1916                         instruction = *(u32 *)(fw->data + index);
1917                         index += 4;
1918
1919                         /* Write out instruction to high addr */
1920                         slic_reg32_write(&slic_regs->slic_wcs, instruction, FLUSH);
1921                         instruction = *(u32 *)(fw->data + index);
1922                         index += 4;
1923                 }
1924         }
1925         index = ucode_start;
1926         for (section = 0; section < numsects; section++) {
1927                 instruction = *(u32 *)(fw->data + index);
1928                 baseaddress = sectstart[section];
1929                 if (baseaddress < 0x8000)
1930                         continue;
1931                 thissectionsize = sectsize[section] >> 3;
1932
1933                 for (codeaddr = 0; codeaddr < thissectionsize; codeaddr++) {
1934                         /* Write out instruction address */
1935                         slic_reg32_write(&slic_regs->slic_wcs,
1936                                 SLIC_WCS_COMPARE | (baseaddress + codeaddr),
1937                                 FLUSH);
1938                         /* Write out instruction to low addr */
1939                         slic_reg32_write(&slic_regs->slic_wcs, instruction,
1940                                          FLUSH);
1941                         instruction = *(u32 *)(fw->data + index);
1942                         index += 4;
1943                         /* Write out instruction to high addr */
1944                         slic_reg32_write(&slic_regs->slic_wcs, instruction,
1945                                          FLUSH);
1946                         instruction = *(u32 *)(fw->data + index);
1947                         index += 4;
1948
1949                         /* Check SRAM location zero. If it is non-zero. Abort.*/
1950 /*                      failure = readl((u32 __iomem *)&slic_regs->slic_reset);
1951                         if (failure) {
1952                                 release_firmware(fw);
1953                                 return -EIO;
1954                         }*/
1955                 }
1956         }
1957         release_firmware(fw);
1958         /* Everything OK, kick off the card */
1959         mdelay(10);
1960         slic_reg32_write(&slic_regs->slic_wcs, SLIC_WCS_START, FLUSH);
1961
1962         /* stall for 20 ms, long enough for ucode to init card
1963            and reach mainloop */
1964         mdelay(20);
1965
1966         return STATUS_SUCCESS;
1967 }
1968
1969 static void slic_adapter_set_hwaddr(struct adapter *adapter)
1970 {
1971         struct sliccard *card = adapter->card;
1972
1973         if ((adapter->card) && (card->config_set)) {
1974                 memcpy(adapter->macaddr,
1975                        card->config.MacInfo[adapter->functionnumber].macaddrA,
1976                        sizeof(struct slic_config_mac));
1977                 if (!(adapter->currmacaddr[0] || adapter->currmacaddr[1] ||
1978                       adapter->currmacaddr[2] || adapter->currmacaddr[3] ||
1979                       adapter->currmacaddr[4] || adapter->currmacaddr[5])) {
1980                         memcpy(adapter->currmacaddr, adapter->macaddr, 6);
1981                 }
1982                 if (adapter->netdev) {
1983                         memcpy(adapter->netdev->dev_addr, adapter->currmacaddr,
1984                                6);
1985                 }
1986         }
1987 }
1988
1989 static void slic_intagg_set(struct adapter *adapter, u32 value)
1990 {
1991         slic_reg32_write(&adapter->slic_regs->slic_intagg, value, FLUSH);
1992         adapter->card->loadlevel_current = value;
1993 }
1994
1995 static int slic_card_init(struct sliccard *card, struct adapter *adapter)
1996 {
1997         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
1998         struct slic_eeprom *peeprom;
1999         struct oslic_eeprom *pOeeprom;
2000         dma_addr_t phys_config;
2001         u32 phys_configh;
2002         u32 phys_configl;
2003         u32 i = 0;
2004         struct slic_shmem *pshmem;
2005         int status;
2006         uint macaddrs = card->card_size;
2007         ushort eecodesize;
2008         ushort dramsize;
2009         ushort ee_chksum;
2010         ushort calc_chksum;
2011         struct slic_config_mac *pmac;
2012         unsigned char fruformat;
2013         unsigned char oemfruformat;
2014         struct atk_fru *patkfru;
2015         union oemfru *poemfru;
2016
2017         /* Reset everything except PCI configuration space */
2018         slic_soft_reset(adapter);
2019
2020         /* Download the microcode */
2021         status = slic_card_download(adapter);
2022
2023         if (status != STATUS_SUCCESS) {
2024                 dev_err(&adapter->pcidev->dev,
2025                         "download failed bus %d slot %d\n",
2026                         adapter->busnumber, adapter->slotnumber);
2027                 return status;
2028         }
2029
2030         if (!card->config_set) {
2031                 peeprom = pci_alloc_consistent(adapter->pcidev,
2032                                                sizeof(struct slic_eeprom),
2033                                                &phys_config);
2034
2035                 phys_configl = SLIC_GET_ADDR_LOW(phys_config);
2036                 phys_configh = SLIC_GET_ADDR_HIGH(phys_config);
2037
2038                 if (!peeprom) {
2039                         dev_err(&adapter->pcidev->dev,
2040                                 "eeprom read failed to get memory "
2041                                 "bus %d slot %d\n", adapter->busnumber,
2042                                 adapter->slotnumber);
2043                         return -ENOMEM;
2044                 } else {
2045                         memset(peeprom, 0, sizeof(struct slic_eeprom));
2046                 }
2047                 slic_reg32_write(&slic_regs->slic_icr, ICR_INT_OFF, FLUSH);
2048                 mdelay(1);
2049                 pshmem = (struct slic_shmem *)adapter->phys_shmem;
2050
2051                 spin_lock_irqsave(&adapter->bit64reglock.lock,
2052                                         adapter->bit64reglock.flags);
2053                 slic_reg32_write(&slic_regs->slic_addr_upper, 0, DONT_FLUSH);
2054                 slic_reg32_write(&slic_regs->slic_isp,
2055                                  SLIC_GET_ADDR_LOW(&pshmem->isr), FLUSH);
2056                 spin_unlock_irqrestore(&adapter->bit64reglock.lock,
2057                                         adapter->bit64reglock.flags);
2058
2059                 slic_config_get(adapter, phys_configl, phys_configh);
2060
2061                 for (;;) {
2062                         if (adapter->pshmem->isr) {
2063                                 if (adapter->pshmem->isr & ISR_UPC) {
2064                                         adapter->pshmem->isr = 0;
2065                                         slic_reg64_write(adapter,
2066                                                 &slic_regs->slic_isp, 0,
2067                                                 &slic_regs->slic_addr_upper,
2068                                                 0, FLUSH);
2069                                         slic_reg32_write(&slic_regs->slic_isr,
2070                                                          0, FLUSH);
2071
2072                                         slic_upr_request_complete(adapter, 0);
2073                                         break;
2074                                 } else {
2075                                         adapter->pshmem->isr = 0;
2076                                         slic_reg32_write(&slic_regs->slic_isr,
2077                                                          0, FLUSH);
2078                                 }
2079                         } else {
2080                                 mdelay(1);
2081                                 i++;
2082                                 if (i > 5000) {
2083                                         dev_err(&adapter->pcidev->dev,
2084                                                 "%d config data fetch timed out!\n",
2085                                                 adapter->port);
2086                                         slic_reg64_write(adapter,
2087                                                 &slic_regs->slic_isp, 0,
2088                                                 &slic_regs->slic_addr_upper,
2089                                                 0, FLUSH);
2090                                         return -EINVAL;
2091                                 }
2092                         }
2093                 }
2094
2095                 switch (adapter->devid) {
2096                 /* Oasis card */
2097                 case SLIC_2GB_DEVICE_ID:
2098                         /* extract EEPROM data and pointers to EEPROM data */
2099                         pOeeprom = (struct oslic_eeprom *) peeprom;
2100                         eecodesize = pOeeprom->EecodeSize;
2101                         dramsize = pOeeprom->DramSize;
2102                         pmac = pOeeprom->MacInfo;
2103                         fruformat = pOeeprom->FruFormat;
2104                         patkfru = &pOeeprom->AtkFru;
2105                         oemfruformat = pOeeprom->OemFruFormat;
2106                         poemfru = &pOeeprom->OemFru;
2107                         macaddrs = 2;
2108                         /* Minor kludge for Oasis card
2109                              get 2 MAC addresses from the
2110                              EEPROM to ensure that function 1
2111                              gets the Port 1 MAC address */
2112                         break;
2113                 default:
2114                         /* extract EEPROM data and pointers to EEPROM data */
2115                         eecodesize = peeprom->EecodeSize;
2116                         dramsize = peeprom->DramSize;
2117                         pmac = peeprom->u2.mac.MacInfo;
2118                         fruformat = peeprom->FruFormat;
2119                         patkfru = &peeprom->AtkFru;
2120                         oemfruformat = peeprom->OemFruFormat;
2121                         poemfru = &peeprom->OemFru;
2122                         break;
2123                 }
2124
2125                 card->config.EepromValid = false;
2126
2127                 /*  see if the EEPROM is valid by checking it's checksum */
2128                 if ((eecodesize <= MAX_EECODE_SIZE) &&
2129                     (eecodesize >= MIN_EECODE_SIZE)) {
2130
2131                         ee_chksum =
2132                             *(u16 *) ((char *) peeprom + (eecodesize - 2));
2133                         /*
2134                             calculate the EEPROM checksum
2135                         */
2136                         calc_chksum =
2137                             ~slic_eeprom_cksum((char *) peeprom,
2138                                                (eecodesize - 2));
2139                         /*
2140                             if the ucdoe chksum flag bit worked,
2141                             we wouldn't need this shit
2142                         */
2143                         if (ee_chksum == calc_chksum)
2144                                 card->config.EepromValid = true;
2145                 }
2146                 /*  copy in the DRAM size */
2147                 card->config.DramSize = dramsize;
2148
2149                 /*  copy in the MAC address(es) */
2150                 for (i = 0; i < macaddrs; i++) {
2151                         memcpy(&card->config.MacInfo[i],
2152                                &pmac[i], sizeof(struct slic_config_mac));
2153                 }
2154
2155                 /*  copy the Alacritech FRU information */
2156                 card->config.FruFormat = fruformat;
2157                 memcpy(&card->config.AtkFru, patkfru,
2158                                                 sizeof(struct atk_fru));
2159
2160                 pci_free_consistent(adapter->pcidev,
2161                                     sizeof(struct slic_eeprom),
2162                                     peeprom, phys_config);
2163
2164                 if ((!card->config.EepromValid) &&
2165                     (adapter->reg_params.fail_on_bad_eeprom)) {
2166                         slic_reg64_write(adapter, &slic_regs->slic_isp, 0,
2167                                          &slic_regs->slic_addr_upper,
2168                                          0, FLUSH);
2169                         dev_err(&adapter->pcidev->dev,
2170                                 "unsupported CONFIGURATION EEPROM invalid\n");
2171                         return -EINVAL;
2172                 }
2173
2174                 card->config_set = 1;
2175         }
2176
2177         if (slic_card_download_gbrcv(adapter)) {
2178                 dev_err(&adapter->pcidev->dev,
2179                         "unable to download GB receive microcode\n");
2180                 return -EINVAL;
2181         }
2182
2183         if (slic_global.dynamic_intagg)
2184                 slic_intagg_set(adapter, 0);
2185         else
2186                 slic_intagg_set(adapter, intagg_delay);
2187
2188         /*
2189          *  Initialize ping status to "ok"
2190          */
2191         card->pingstatus = ISR_PINGMASK;
2192
2193         /*
2194          * Lastly, mark our card state as up and return success
2195          */
2196         card->state = CARD_UP;
2197         card->reset_in_progress = 0;
2198
2199         return STATUS_SUCCESS;
2200 }
2201
2202 static u32 slic_card_locate(struct adapter *adapter)
2203 {
2204         struct sliccard *card = slic_global.slic_card;
2205         struct physcard *physcard = slic_global.phys_card;
2206         ushort card_hostid;
2207         u16 __iomem *hostid_reg;
2208         uint i;
2209         uint rdhostid_offset = 0;
2210
2211         switch (adapter->devid) {
2212         case SLIC_2GB_DEVICE_ID:
2213                 rdhostid_offset = SLIC_RDHOSTID_2GB;
2214                 break;
2215         case SLIC_1GB_DEVICE_ID:
2216                 rdhostid_offset = SLIC_RDHOSTID_1GB;
2217                 break;
2218         default:
2219                 ASSERT(0);
2220                 break;
2221         }
2222
2223         hostid_reg =
2224             (u16 __iomem *) (((u8 __iomem *) (adapter->slic_regs)) +
2225             rdhostid_offset);
2226
2227         /* read the 16 bit hostid from SRAM */
2228         card_hostid = (ushort) readw(hostid_reg);
2229
2230         /* Initialize a new card structure if need be */
2231         if (card_hostid == SLIC_HOSTID_DEFAULT) {
2232                 card = kzalloc(sizeof(struct sliccard), GFP_KERNEL);
2233                 if (card == NULL)
2234                         return -ENOMEM;
2235
2236                 card->next = slic_global.slic_card;
2237                 slic_global.slic_card = card;
2238                 card->busnumber = adapter->busnumber;
2239                 card->slotnumber = adapter->slotnumber;
2240
2241                 /* Find an available cardnum */
2242                 for (i = 0; i < SLIC_MAX_CARDS; i++) {
2243                         if (slic_global.cardnuminuse[i] == 0) {
2244                                 slic_global.cardnuminuse[i] = 1;
2245                                 card->cardnum = i;
2246                                 break;
2247                         }
2248                 }
2249                 slic_global.num_slic_cards++;
2250
2251                 slic_debug_card_create(card);
2252         } else {
2253                 /* Card exists, find the card this adapter belongs to */
2254                 while (card) {
2255                         if (card->cardnum == card_hostid)
2256                                 break;
2257                         card = card->next;
2258                 }
2259         }
2260
2261         ASSERT(card);
2262         if (!card)
2263                 return STATUS_FAILURE;
2264         /* Put the adapter in the card's adapter list */
2265         ASSERT(card->adapter[adapter->port] == NULL);
2266         if (!card->adapter[adapter->port]) {
2267                 card->adapter[adapter->port] = adapter;
2268                 adapter->card = card;
2269         }
2270
2271         card->card_size = 1;    /* one port per *logical* card */
2272
2273         while (physcard) {
2274                 for (i = 0; i < SLIC_MAX_PORTS; i++) {
2275                         if (!physcard->adapter[i])
2276                                 continue;
2277                         else
2278                                 break;
2279                 }
2280                 ASSERT(i != SLIC_MAX_PORTS);
2281                 if (physcard->adapter[i]->slotnumber == adapter->slotnumber)
2282                         break;
2283                 physcard = physcard->next;
2284         }
2285         if (!physcard) {
2286                 /* no structure allocated for this physical card yet */
2287                 physcard = kzalloc(sizeof(struct physcard), GFP_KERNEL);
2288                 ASSERT(physcard);
2289
2290                 physcard->next = slic_global.phys_card;
2291                 slic_global.phys_card = physcard;
2292                 physcard->adapters_allocd = 1;
2293         } else {
2294                 physcard->adapters_allocd++;
2295         }
2296         /* Note - this is ZERO relative */
2297         adapter->physport = physcard->adapters_allocd - 1;
2298
2299         ASSERT(physcard->adapter[adapter->physport] == NULL);
2300         physcard->adapter[adapter->physport] = adapter;
2301         adapter->physcard = physcard;
2302
2303         return 0;
2304 }
2305
2306 static void slic_soft_reset(struct adapter *adapter)
2307 {
2308         if (adapter->card->state == CARD_UP) {
2309                 slic_reg32_write(&adapter->slic_regs->slic_quiesce, 0, FLUSH);
2310                 mdelay(1);
2311         }
2312
2313         slic_reg32_write(&adapter->slic_regs->slic_reset, SLIC_RESET_MAGIC,
2314                          FLUSH);
2315         mdelay(1);
2316 }
2317
2318 static void slic_config_set(struct adapter *adapter, bool linkchange)
2319 {
2320         u32 value;
2321         u32 RcrReset;
2322         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
2323
2324         if (linkchange) {
2325                 /* Setup MAC */
2326                 slic_mac_config(adapter);
2327                 RcrReset = GRCR_RESET;
2328         } else {
2329                 slic_mac_address_config(adapter);
2330                 RcrReset = 0;
2331         }
2332
2333         if (adapter->linkduplex == LINK_FULLD) {
2334                 /* setup xmtcfg */
2335                 value = (GXCR_RESET |   /* Always reset     */
2336                          GXCR_XMTEN |   /* Enable transmit  */
2337                          GXCR_PAUSEEN); /* Enable pause     */
2338
2339                 slic_reg32_write(&slic_regs->slic_wxcfg, value, FLUSH);
2340
2341                 /* Setup rcvcfg last */
2342                 value = (RcrReset |     /* Reset, if linkchange */
2343                          GRCR_CTLEN |   /* Enable CTL frames    */
2344                          GRCR_ADDRAEN | /* Address A enable     */
2345                          GRCR_RCVBAD |  /* Rcv bad frames       */
2346                          (GRCR_HASHSIZE << GRCR_HASHSIZE_SHIFT));
2347         } else {
2348                 /* setup xmtcfg */
2349                 value = (GXCR_RESET |   /* Always reset     */
2350                          GXCR_XMTEN);   /* Enable transmit  */
2351
2352                 slic_reg32_write(&slic_regs->slic_wxcfg, value, FLUSH);
2353
2354                 /* Setup rcvcfg last */
2355                 value = (RcrReset |     /* Reset, if linkchange */
2356                          GRCR_ADDRAEN | /* Address A enable     */
2357                          GRCR_RCVBAD |  /* Rcv bad frames       */
2358                          (GRCR_HASHSIZE << GRCR_HASHSIZE_SHIFT));
2359         }
2360
2361         if (adapter->state != ADAPT_DOWN) {
2362                 /* Only enable receive if we are restarting or running */
2363                 value |= GRCR_RCVEN;
2364         }
2365
2366         if (adapter->macopts & MAC_PROMISC)
2367                 value |= GRCR_RCVALL;
2368
2369         slic_reg32_write(&slic_regs->slic_wrcfg, value, FLUSH);
2370 }
2371
2372 /*
2373  *  Turn off RCV and XMT, power down PHY
2374  */
2375 static void slic_config_clear(struct adapter *adapter)
2376 {
2377         u32 value;
2378         u32 phy_config;
2379         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
2380
2381         /* Setup xmtcfg */
2382         value = (GXCR_RESET |   /* Always reset */
2383                  GXCR_PAUSEEN); /* Enable pause */
2384
2385         slic_reg32_write(&slic_regs->slic_wxcfg, value, FLUSH);
2386
2387         value = (GRCR_RESET |   /* Always reset      */
2388                  GRCR_CTLEN |   /* Enable CTL frames */
2389                  GRCR_ADDRAEN | /* Address A enable  */
2390                  (GRCR_HASHSIZE << GRCR_HASHSIZE_SHIFT));
2391
2392         slic_reg32_write(&slic_regs->slic_wrcfg, value, FLUSH);
2393
2394         /* power down phy */
2395         phy_config = (MIICR_REG_PCR | (PCR_POWERDOWN));
2396         slic_reg32_write(&slic_regs->slic_wphy, phy_config, FLUSH);
2397 }
2398
2399 static void slic_config_get(struct adapter *adapter, u32 config,
2400                                                         u32 config_h)
2401 {
2402         int status;
2403
2404         status = slic_upr_request(adapter,
2405                                   SLIC_UPR_RCONFIG,
2406                                   (u32) config, (u32) config_h, 0, 0);
2407         ASSERT(status == 0);
2408 }
2409
2410 static void slic_mac_address_config(struct adapter *adapter)
2411 {
2412         u32 value;
2413         u32 value2;
2414         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
2415
2416         value = *(u32 *) &adapter->currmacaddr[2];
2417         value = ntohl(value);
2418         slic_reg32_write(&slic_regs->slic_wraddral, value, FLUSH);
2419         slic_reg32_write(&slic_regs->slic_wraddrbl, value, FLUSH);
2420
2421         value2 = (u32) ((adapter->currmacaddr[0] << 8 |
2422                              adapter->currmacaddr[1]) & 0xFFFF);
2423
2424         slic_reg32_write(&slic_regs->slic_wraddrah, value2, FLUSH);
2425         slic_reg32_write(&slic_regs->slic_wraddrbh, value2, FLUSH);
2426
2427         /* Write our multicast mask out to the card.  This is done */
2428         /* here in addition to the slic_mcast_addr_set routine     */
2429         /* because ALL_MCAST may have been enabled or disabled     */
2430         slic_mcast_set_mask(adapter);
2431 }
2432
2433 static void slic_mac_config(struct adapter *adapter)
2434 {
2435         u32 value;
2436         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
2437
2438         /* Setup GMAC gaps */
2439         if (adapter->linkspeed == LINK_1000MB) {
2440                 value = ((GMCR_GAPBB_1000 << GMCR_GAPBB_SHIFT) |
2441                          (GMCR_GAPR1_1000 << GMCR_GAPR1_SHIFT) |
2442                          (GMCR_GAPR2_1000 << GMCR_GAPR2_SHIFT));
2443         } else {
2444                 value = ((GMCR_GAPBB_100 << GMCR_GAPBB_SHIFT) |
2445                          (GMCR_GAPR1_100 << GMCR_GAPR1_SHIFT) |
2446                          (GMCR_GAPR2_100 << GMCR_GAPR2_SHIFT));
2447         }
2448
2449         /* enable GMII */
2450         if (adapter->linkspeed == LINK_1000MB)
2451                 value |= GMCR_GBIT;
2452
2453         /* enable fullduplex */
2454         if ((adapter->linkduplex == LINK_FULLD)
2455             || (adapter->macopts & MAC_LOOPBACK)) {
2456                 value |= GMCR_FULLD;
2457         }
2458
2459         /* write mac config */
2460         slic_reg32_write(&slic_regs->slic_wmcfg, value, FLUSH);
2461
2462         /* setup mac addresses */
2463         slic_mac_address_config(adapter);
2464 }
2465
2466 static bool slic_mac_filter(struct adapter *adapter,
2467                         struct ether_header *ether_frame)
2468 {
2469         u32 opts = adapter->macopts;
2470         u32 *dhost4 = (u32 *)&ether_frame->ether_dhost[0];
2471         u16 *dhost2 = (u16 *)&ether_frame->ether_dhost[4];
2472         bool equaladdr;
2473
2474         if (opts & MAC_PROMISC)
2475                 return true;
2476
2477         if ((*dhost4 == 0xFFFFFFFF) && (*dhost2 == 0xFFFF)) {
2478                 if (opts & MAC_BCAST) {
2479                         adapter->rcv_broadcasts++;
2480                         return true;
2481                 } else {
2482                         return false;
2483                 }
2484         }
2485
2486         if (ether_frame->ether_dhost[0] & 0x01) {
2487                 if (opts & MAC_ALLMCAST) {
2488                         adapter->rcv_multicasts++;
2489                         adapter->stats.multicast++;
2490                         return true;
2491                 }
2492                 if (opts & MAC_MCAST) {
2493                         struct mcast_address *mcaddr = adapter->mcastaddrs;
2494
2495                         while (mcaddr) {
2496                                 ETHER_EQ_ADDR(mcaddr->address,
2497                                               ether_frame->ether_dhost,
2498                                               equaladdr);
2499                                 if (equaladdr) {
2500                                         adapter->rcv_multicasts++;
2501                                         adapter->stats.multicast++;
2502                                         return true;
2503                                 }
2504                                 mcaddr = mcaddr->next;
2505                         }
2506                         return false;
2507                 } else {
2508                         return false;
2509                 }
2510         }
2511         if (opts & MAC_DIRECTED) {
2512                 adapter->rcv_unicasts++;
2513                 return true;
2514         }
2515         return false;
2516
2517 }
2518
2519 static int slic_mac_set_address(struct net_device *dev, void *ptr)
2520 {
2521         struct adapter *adapter = (struct adapter *)netdev_priv(dev);
2522         struct sockaddr *addr = ptr;
2523
2524         if (netif_running(dev))
2525                 return -EBUSY;
2526         if (!adapter)
2527                 return -EBUSY;
2528
2529         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
2530         memcpy(adapter->currmacaddr, addr->sa_data, dev->addr_len);
2531
2532         slic_config_set(adapter, true);
2533         return 0;
2534 }
2535
2536 static void slic_timer_load_check(ulong cardaddr)
2537 {
2538         struct sliccard *card = (struct sliccard *)cardaddr;
2539         struct adapter *adapter = card->master;
2540         u32 __iomem *intagg;
2541         u32 load = card->events;
2542         u32 level = 0;
2543
2544         intagg = &adapter->slic_regs->slic_intagg;
2545
2546         if ((adapter) && (adapter->state == ADAPT_UP) &&
2547             (card->state == CARD_UP) && (slic_global.dynamic_intagg)) {
2548                 if (adapter->devid == SLIC_1GB_DEVICE_ID) {
2549                         if (adapter->linkspeed == LINK_1000MB)
2550                                 level = 100;
2551                         else {
2552                                 if (load > SLIC_LOAD_5)
2553                                         level = SLIC_INTAGG_5;
2554                                 else if (load > SLIC_LOAD_4)
2555                                         level = SLIC_INTAGG_4;
2556                                 else if (load > SLIC_LOAD_3)
2557                                         level = SLIC_INTAGG_3;
2558                                 else if (load > SLIC_LOAD_2)
2559                                         level = SLIC_INTAGG_2;
2560                                 else if (load > SLIC_LOAD_1)
2561                                         level = SLIC_INTAGG_1;
2562                                 else
2563                                         level = SLIC_INTAGG_0;
2564                         }
2565                         if (card->loadlevel_current != level) {
2566                                 card->loadlevel_current = level;
2567                                 slic_reg32_write(intagg, level, FLUSH);
2568                         }
2569                 } else {
2570                         if (load > SLIC_LOAD_5)
2571                                 level = SLIC_INTAGG_5;
2572                         else if (load > SLIC_LOAD_4)
2573                                 level = SLIC_INTAGG_4;
2574                         else if (load > SLIC_LOAD_3)
2575                                 level = SLIC_INTAGG_3;
2576                         else if (load > SLIC_LOAD_2)
2577                                 level = SLIC_INTAGG_2;
2578                         else if (load > SLIC_LOAD_1)
2579                                 level = SLIC_INTAGG_1;
2580                         else
2581                                 level = SLIC_INTAGG_0;
2582                         if (card->loadlevel_current != level) {
2583                                 card->loadlevel_current = level;
2584                                 slic_reg32_write(intagg, level, FLUSH);
2585                         }
2586                 }
2587         }
2588         card->events = 0;
2589         card->loadtimer.expires = jiffies + (SLIC_LOADTIMER_PERIOD * HZ);
2590         add_timer(&card->loadtimer);
2591 }
2592
2593 static void slic_assert_fail(void)
2594 {
2595         u32 cpuid;
2596         u32 curr_pid;
2597         cpuid = smp_processor_id();
2598         curr_pid = current->pid;
2599
2600         printk(KERN_ERR "%s CPU # %d ---- PID # %d\n",
2601                __func__, cpuid, curr_pid);
2602 }
2603
2604 static int slic_upr_queue_request(struct adapter *adapter,
2605                            u32 upr_request,
2606                            u32 upr_data,
2607                            u32 upr_data_h,
2608                            u32 upr_buffer, u32 upr_buffer_h)
2609 {
2610         struct slic_upr *upr;
2611         struct slic_upr *uprqueue;
2612
2613         upr = kmalloc(sizeof(struct slic_upr), GFP_ATOMIC);
2614         if (!upr)
2615                 return -ENOMEM;
2616
2617         upr->adapter = adapter->port;
2618         upr->upr_request = upr_request;
2619         upr->upr_data = upr_data;
2620         upr->upr_buffer = upr_buffer;
2621         upr->upr_data_h = upr_data_h;
2622         upr->upr_buffer_h = upr_buffer_h;
2623         upr->next = NULL;
2624         if (adapter->upr_list) {
2625                 uprqueue = adapter->upr_list;
2626
2627                 while (uprqueue->next)
2628                         uprqueue = uprqueue->next;
2629                 uprqueue->next = upr;
2630         } else {
2631                 adapter->upr_list = upr;
2632         }
2633         return STATUS_SUCCESS;
2634 }
2635
2636 static int slic_upr_request(struct adapter *adapter,
2637                      u32 upr_request,
2638                      u32 upr_data,
2639                      u32 upr_data_h,
2640                      u32 upr_buffer, u32 upr_buffer_h)
2641 {
2642         int status;
2643
2644         spin_lock_irqsave(&adapter->upr_lock.lock, adapter->upr_lock.flags);
2645         status = slic_upr_queue_request(adapter,
2646                                         upr_request,
2647                                         upr_data,
2648                                         upr_data_h, upr_buffer, upr_buffer_h);
2649         if (status != STATUS_SUCCESS) {
2650                 spin_unlock_irqrestore(&adapter->upr_lock.lock,
2651                                         adapter->upr_lock.flags);
2652                 return status;
2653         }
2654         slic_upr_start(adapter);
2655         spin_unlock_irqrestore(&adapter->upr_lock.lock,
2656                                 adapter->upr_lock.flags);
2657         return STATUS_PENDING;
2658 }
2659
2660 static void slic_upr_request_complete(struct adapter *adapter, u32 isr)
2661 {
2662         struct sliccard *card = adapter->card;
2663         struct slic_upr *upr;
2664
2665         spin_lock_irqsave(&adapter->upr_lock.lock, adapter->upr_lock.flags);
2666         upr = adapter->upr_list;
2667         if (!upr) {
2668                 ASSERT(0);
2669                 spin_unlock_irqrestore(&adapter->upr_lock.lock,
2670                                         adapter->upr_lock.flags);
2671                 return;
2672         }
2673         adapter->upr_list = upr->next;
2674         upr->next = NULL;
2675         adapter->upr_busy = 0;
2676         ASSERT(adapter->port == upr->adapter);
2677         switch (upr->upr_request) {
2678         case SLIC_UPR_STATS:
2679                 {
2680                         struct slic_stats *slicstats =
2681                             (struct slic_stats *) &adapter->pshmem->inicstats;
2682                         struct slic_stats *newstats = slicstats;
2683                         struct slic_stats  *old = &adapter->inicstats_prev;
2684                         struct slicnet_stats *stst = &adapter->slic_stats;
2685
2686                         if (isr & ISR_UPCERR) {
2687                                 dev_err(&adapter->netdev->dev,
2688                                         "SLIC_UPR_STATS command failed isr[%x]\n",
2689                                         isr);
2690
2691                                 break;
2692                         }
2693                         UPDATE_STATS_GB(stst->tcp.xmit_tcp_segs,
2694                                         newstats->xmit_tcp_segs_gb,
2695                                         old->xmit_tcp_segs_gb);
2696
2697                         UPDATE_STATS_GB(stst->tcp.xmit_tcp_bytes,
2698                                         newstats->xmit_tcp_bytes_gb,
2699                                         old->xmit_tcp_bytes_gb);
2700
2701                         UPDATE_STATS_GB(stst->tcp.rcv_tcp_segs,
2702                                         newstats->rcv_tcp_segs_gb,
2703                                         old->rcv_tcp_segs_gb);
2704
2705                         UPDATE_STATS_GB(stst->tcp.rcv_tcp_bytes,
2706                                         newstats->rcv_tcp_bytes_gb,
2707                                         old->rcv_tcp_bytes_gb);
2708
2709                         UPDATE_STATS_GB(stst->iface.xmt_bytes,
2710                                         newstats->xmit_bytes_gb,
2711                                         old->xmit_bytes_gb);
2712
2713                         UPDATE_STATS_GB(stst->iface.xmt_ucast,
2714                                         newstats->xmit_unicasts_gb,
2715                                         old->xmit_unicasts_gb);
2716
2717                         UPDATE_STATS_GB(stst->iface.rcv_bytes,
2718                                         newstats->rcv_bytes_gb,
2719                                         old->rcv_bytes_gb);
2720
2721                         UPDATE_STATS_GB(stst->iface.rcv_ucast,
2722                                         newstats->rcv_unicasts_gb,
2723                                         old->rcv_unicasts_gb);
2724
2725                         UPDATE_STATS_GB(stst->iface.xmt_errors,
2726                                         newstats->xmit_collisions_gb,
2727                                         old->xmit_collisions_gb);
2728
2729                         UPDATE_STATS_GB(stst->iface.xmt_errors,
2730                                         newstats->xmit_excess_collisions_gb,
2731                                         old->xmit_excess_collisions_gb);
2732
2733                         UPDATE_STATS_GB(stst->iface.xmt_errors,
2734                                         newstats->xmit_other_error_gb,
2735                                         old->xmit_other_error_gb);
2736
2737                         UPDATE_STATS_GB(stst->iface.rcv_errors,
2738                                         newstats->rcv_other_error_gb,
2739                                         old->rcv_other_error_gb);
2740
2741                         UPDATE_STATS_GB(stst->iface.rcv_discards,
2742                                         newstats->rcv_drops_gb,
2743                                         old->rcv_drops_gb);
2744
2745                         if (newstats->rcv_drops_gb > old->rcv_drops_gb) {
2746                                 adapter->rcv_drops +=
2747                                     (newstats->rcv_drops_gb -
2748                                      old->rcv_drops_gb);
2749                         }
2750                         memcpy(old, newstats, sizeof(struct slic_stats));
2751                         break;
2752                 }
2753         case SLIC_UPR_RLSR:
2754                 slic_link_upr_complete(adapter, isr);
2755                 break;
2756         case SLIC_UPR_RCONFIG:
2757                 break;
2758         case SLIC_UPR_RPHY:
2759                 ASSERT(0);
2760                 break;
2761         case SLIC_UPR_ENLB:
2762                 ASSERT(0);
2763                 break;
2764         case SLIC_UPR_ENCT:
2765                 ASSERT(0);
2766                 break;
2767         case SLIC_UPR_PDWN:
2768                 ASSERT(0);
2769                 break;
2770         case SLIC_UPR_PING:
2771                 card->pingstatus |= (isr & ISR_PINGDSMASK);
2772                 break;
2773         default:
2774                 ASSERT(0);
2775         }
2776         kfree(upr);
2777         slic_upr_start(adapter);
2778         spin_unlock_irqrestore(&adapter->upr_lock.lock,
2779                                 adapter->upr_lock.flags);
2780 }
2781
2782 static void slic_upr_start(struct adapter *adapter)
2783 {
2784         struct slic_upr *upr;
2785         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
2786 /*
2787     char * ptr1;
2788     char * ptr2;
2789     uint cmdoffset;
2790 */
2791         upr = adapter->upr_list;
2792         if (!upr)
2793                 return;
2794         if (adapter->upr_busy)
2795                 return;
2796         adapter->upr_busy = 1;
2797
2798         switch (upr->upr_request) {
2799         case SLIC_UPR_STATS:
2800                 if (upr->upr_data_h == 0) {
2801                         slic_reg32_write(&slic_regs->slic_stats, upr->upr_data,
2802                                          FLUSH);
2803                 } else {
2804                         slic_reg64_write(adapter, &slic_regs->slic_stats64,
2805                                          upr->upr_data,
2806                                          &slic_regs->slic_addr_upper,
2807                                          upr->upr_data_h, FLUSH);
2808                 }
2809                 break;
2810
2811         case SLIC_UPR_RLSR:
2812                 slic_reg64_write(adapter, &slic_regs->slic_rlsr, upr->upr_data,
2813                                  &slic_regs->slic_addr_upper, upr->upr_data_h,
2814                                  FLUSH);
2815                 break;
2816
2817         case SLIC_UPR_RCONFIG:
2818                 slic_reg64_write(adapter, &slic_regs->slic_rconfig,
2819                                  upr->upr_data, &slic_regs->slic_addr_upper,
2820                                  upr->upr_data_h, FLUSH);
2821                 break;
2822         case SLIC_UPR_PING:
2823                 slic_reg32_write(&slic_regs->slic_ping, 1, FLUSH);
2824                 break;
2825         default:
2826                 ASSERT(0);
2827         }
2828 }
2829
2830 static void slic_link_upr_complete(struct adapter *adapter, u32 isr)
2831 {
2832         u32 linkstatus = adapter->pshmem->linkstatus;
2833         uint linkup;
2834         unsigned char linkspeed;
2835         unsigned char linkduplex;
2836
2837         if ((isr & ISR_UPCERR) || (isr & ISR_UPCBSY)) {
2838                 struct slic_shmem *pshmem;
2839
2840                 pshmem = (struct slic_shmem *)adapter->phys_shmem;
2841 #if defined(CONFIG_X86_64)
2842                 slic_upr_queue_request(adapter,
2843                                        SLIC_UPR_RLSR,
2844                                        SLIC_GET_ADDR_LOW(&pshmem->linkstatus),
2845                                        SLIC_GET_ADDR_HIGH(&pshmem->linkstatus),
2846                                        0, 0);
2847 #elif defined(CONFIG_X86)
2848                 slic_upr_queue_request(adapter,
2849                                        SLIC_UPR_RLSR,
2850                                        (u32) &pshmem->linkstatus,
2851                                        SLIC_GET_ADDR_HIGH(pshmem), 0, 0);
2852 #else
2853                 Stop Compilation;
2854 #endif
2855                 return;
2856         }
2857         if (adapter->state != ADAPT_UP)
2858                 return;
2859
2860         ASSERT((adapter->devid == SLIC_1GB_DEVICE_ID)
2861                || (adapter->devid == SLIC_2GB_DEVICE_ID));
2862
2863         linkup = linkstatus & GIG_LINKUP ? LINK_UP : LINK_DOWN;
2864         if (linkstatus & GIG_SPEED_1000)
2865                 linkspeed = LINK_1000MB;
2866         else if (linkstatus & GIG_SPEED_100)
2867                 linkspeed = LINK_100MB;
2868         else
2869                 linkspeed = LINK_10MB;
2870
2871         if (linkstatus & GIG_FULLDUPLEX)
2872                 linkduplex = LINK_FULLD;
2873         else
2874                 linkduplex = LINK_HALFD;
2875
2876         if ((adapter->linkstate == LINK_DOWN) && (linkup == LINK_DOWN))
2877                 return;
2878
2879         /* link up event, but nothing has changed */
2880         if ((adapter->linkstate == LINK_UP) &&
2881             (linkup == LINK_UP) &&
2882             (adapter->linkspeed == linkspeed) &&
2883             (adapter->linkduplex == linkduplex))
2884                 return;
2885
2886         /* link has changed at this point */
2887
2888         /* link has gone from up to down */
2889         if (linkup == LINK_DOWN) {
2890                 adapter->linkstate = LINK_DOWN;
2891                 return;
2892         }
2893
2894         /* link has gone from down to up */
2895         adapter->linkspeed = linkspeed;
2896         adapter->linkduplex = linkduplex;
2897
2898         if (adapter->linkstate != LINK_UP) {
2899                 /* setup the mac */
2900                 slic_config_set(adapter, true);
2901                 adapter->linkstate = LINK_UP;
2902                 netif_start_queue(adapter->netdev);
2903         }
2904 }
2905
2906 /*
2907  *  this is here to checksum the eeprom, there is some ucode bug
2908  *  which prevens us from using the ucode result.
2909  *  remove this once ucode is fixed.
2910  */
2911 static ushort slic_eeprom_cksum(char *m, int len)
2912 {
2913 #define ADDCARRY(x)  (x > 65535 ? x -= 65535 : x)
2914 #define REDUCE {l_util.l = sum; sum = l_util.s[0] + l_util.s[1]; ADDCARRY(sum);\
2915                 }
2916
2917         u16 *w;
2918         u32 sum = 0;
2919         u32 byte_swapped = 0;
2920         u32 w_int;
2921
2922         union {
2923                 char c[2];
2924                 ushort s;
2925         } s_util;
2926
2927         union {
2928                 ushort s[2];
2929                 int l;
2930         } l_util;
2931
2932         l_util.l = 0;
2933         s_util.s = 0;
2934
2935         w = (u16 *)m;
2936 #ifdef CONFIG_X86_64
2937         w_int = (u32) ((ulong) w & 0x00000000FFFFFFFF);
2938 #else
2939         w_int = (u32) (w);
2940 #endif
2941         if ((1 & w_int) && (len > 0)) {
2942                 REDUCE;
2943                 sum <<= 8;
2944                 s_util.c[0] = *(unsigned char *)w;
2945                 w = (u16 *)((char *)w + 1);
2946                 len--;
2947                 byte_swapped = 1;
2948         }
2949
2950         /* Unroll the loop to make overhead from branches &c small. */
2951         while ((len -= 32) >= 0) {
2952                 sum += w[0];
2953                 sum += w[1];
2954                 sum += w[2];
2955                 sum += w[3];
2956                 sum += w[4];
2957                 sum += w[5];
2958                 sum += w[6];
2959                 sum += w[7];
2960                 sum += w[8];
2961                 sum += w[9];
2962                 sum += w[10];
2963                 sum += w[11];
2964                 sum += w[12];
2965                 sum += w[13];
2966                 sum += w[14];
2967                 sum += w[15];
2968                 w = (u16 *)((ulong) w + 16);    /* verify */
2969         }
2970         len += 32;
2971         while ((len -= 8) >= 0) {
2972                 sum += w[0];
2973                 sum += w[1];
2974                 sum += w[2];
2975                 sum += w[3];
2976                 w = (u16 *)((ulong) w + 4);     /* verify */
2977         }
2978         len += 8;
2979         if (len != 0 || byte_swapped != 0) {
2980                 REDUCE;
2981                 while ((len -= 2) >= 0)
2982                         sum += *w++;    /* verify */
2983                 if (byte_swapped) {
2984                         REDUCE;
2985                         sum <<= 8;
2986                         byte_swapped = 0;
2987                         if (len == -1) {
2988                                 s_util.c[1] = *(char *) w;
2989                                 sum += s_util.s;
2990                                 len = 0;
2991                         } else {
2992                                 len = -1;
2993                         }
2994
2995                 } else if (len == -1) {
2996                         s_util.c[0] = *(char *) w;
2997                 }
2998
2999                 if (len == -1) {
3000                         s_util.c[1] = 0;
3001                         sum += s_util.s;
3002                 }
3003         }
3004         REDUCE;
3005         return (ushort) sum;
3006 }
3007
3008 static int slic_rspqueue_init(struct adapter *adapter)
3009 {
3010         int i;
3011         struct slic_rspqueue *rspq = &adapter->rspqueue;
3012         __iomem struct slic_regs *slic_regs = adapter->slic_regs;
3013         u32 paddrh = 0;
3014
3015         ASSERT(adapter->state == ADAPT_DOWN);
3016         memset(rspq, 0, sizeof(struct slic_rspqueue));
3017
3018         rspq->num_pages = SLIC_RSPQ_PAGES_GB;
3019
3020         for (i = 0; i < rspq->num_pages; i++) {
3021                 rspq->vaddr[i] = pci_alloc_consistent(adapter->pcidev,
3022                                                       PAGE_SIZE,
3023                                                       &rspq->paddr[i]);
3024                 if (!rspq->vaddr[i]) {
3025                         dev_err(&adapter->pcidev->dev,
3026                                 "pci_alloc_consistent failed\n");
3027                         slic_rspqueue_free(adapter);
3028                         return STATUS_FAILURE;
3029                 }
3030 #ifndef CONFIG_X86_64
3031                 ASSERT(((u32) rspq->vaddr[i] & 0xFFFFF000) ==
3032                        (u32) rspq->vaddr[i]);
3033                 ASSERT(((u32) rspq->paddr[i] & 0xFFFFF000) ==
3034                        (u32) rspq->paddr[i]);
3035 #endif
3036                 memset(rspq->vaddr[i], 0, PAGE_SIZE);
3037
3038                 if (paddrh == 0) {
3039                         slic_reg32_write(&slic_regs->slic_rbar,
3040                                 (rspq->paddr[i] | SLIC_RSPQ_BUFSINPAGE),
3041                                 DONT_FLUSH);
3042                 } else {
3043                         slic_reg64_write(adapter, &slic_regs->slic_rbar64,
3044                                 (rspq->paddr[i] | SLIC_RSPQ_BUFSINPAGE),
3045                                 &slic_regs->slic_addr_upper,
3046                                 paddrh, DONT_FLUSH);
3047                 }
3048         }
3049         rspq->offset = 0;
3050         rspq->pageindex = 0;
3051         rspq->rspbuf = (struct slic_rspbuf *)rspq->vaddr[0];
3052         return STATUS_SUCCESS;
3053 }
3054
3055 static void slic_rspqueue_free(struct adapter *adapter)
3056 {
3057         int i;
3058         struct slic_rspqueue *rspq = &adapter->rspqueue;
3059
3060         for (i = 0; i < rspq->num_pages; i++) {
3061                 if (rspq->vaddr[i]) {
3062                         pci_free_consistent(adapter->pcidev, PAGE_SIZE,
3063                                             rspq->vaddr[i], rspq->paddr[i]);
3064                 }
3065                 rspq->vaddr[i] = NULL;
3066                 rspq->paddr[i] = 0;
3067         }
3068         rspq->offset = 0;
3069         rspq->pageindex = 0;
3070         rspq->rspbuf = NULL;
3071 }
3072
3073 static struct slic_rspbuf *slic_rspqueue_getnext(struct adapter *adapter)
3074 {
3075         struct slic_rspqueue *rspq = &adapter->rspqueue;
3076         struct slic_rspbuf *buf;
3077
3078         if (!(rspq->rspbuf->status))
3079                 return NULL;
3080
3081         buf = rspq->rspbuf;
3082 #ifndef CONFIG_X86_64
3083         ASSERT((buf->status & 0xFFFFFFE0) == 0);
3084 #endif
3085         ASSERT(buf->hosthandle);
3086         if (++rspq->offset < SLIC_RSPQ_BUFSINPAGE) {
3087                 rspq->rspbuf++;
3088 #ifndef CONFIG_X86_64
3089                 ASSERT(((u32) rspq->rspbuf & 0xFFFFFFE0) ==
3090                        (u32) rspq->rspbuf);
3091 #endif
3092         } else {
3093                 ASSERT(rspq->offset == SLIC_RSPQ_BUFSINPAGE);
3094                 slic_reg64_write(adapter, &adapter->slic_regs->slic_rbar64,
3095                         (rspq->paddr[rspq->pageindex] | SLIC_RSPQ_BUFSINPAGE),
3096                         &adapter->slic_regs->slic_addr_upper, 0, DONT_FLUSH);
3097                 rspq->pageindex = (++rspq->pageindex) % rspq->num_pages;
3098                 rspq->offset = 0;
3099                 rspq->rspbuf = (struct slic_rspbuf *)
3100                                                 rspq->vaddr[rspq->pageindex];
3101 #ifndef CONFIG_X86_64
3102                 ASSERT(((u32) rspq->rspbuf & 0xFFFFF000) ==
3103                        (u32) rspq->rspbuf);
3104 #endif
3105         }
3106 #ifndef CONFIG_X86_64
3107         ASSERT(((u32) buf & 0xFFFFFFE0) == (u32) buf);
3108 #endif
3109         return buf;
3110 }
3111
3112 static void slic_cmdqmem_init(struct adapter *adapter)
3113 {
3114         struct slic_cmdqmem *cmdqmem = &adapter->cmdqmem;
3115
3116         memset(cmdqmem, 0, sizeof(struct slic_cmdqmem));
3117 }
3118
3119 static void slic_cmdqmem_free(struct adapter *adapter)
3120 {
3121         struct slic_cmdqmem *cmdqmem = &adapter->cmdqmem;
3122         int i;
3123
3124         for (i = 0; i < SLIC_CMDQ_MAXPAGES; i++) {
3125                 if (cmdqmem->pages[i]) {
3126                         pci_free_consistent(adapter->pcidev,
3127                                             PAGE_SIZE,
3128                                             (void *) cmdqmem->pages[i],
3129                                             cmdqmem->dma_pages[i]);
3130                 }
3131         }
3132         memset(cmdqmem, 0, sizeof(struct slic_cmdqmem));
3133 }
3134
3135 static u32 *slic_cmdqmem_addpage(struct adapter *adapter)
3136 {
3137         struct slic_cmdqmem *cmdqmem = &adapter->cmdqmem;
3138         u32 *pageaddr;
3139
3140         if (cmdqmem->pagecnt >= SLIC_CMDQ_MAXPAGES)
3141                 return NULL;
3142         pageaddr = pci_alloc_consistent(adapter->pcidev,
3143                                         PAGE_SIZE,
3144                                         &cmdqmem->dma_pages[cmdqmem->pagecnt]);
3145         if (!pageaddr)
3146                 return NULL;
3147 #ifndef CONFIG_X86_64
3148         ASSERT(((u32) pageaddr & 0xFFFFF000) == (u32) pageaddr);
3149 #endif
3150         cmdqmem->pages[cmdqmem->pagecnt] = pageaddr;
3151         cmdqmem->pagecnt++;
3152         return pageaddr;
3153 }
3154
3155 static int slic_cmdq_init(struct adapter *adapter)
3156 {
3157         int i;
3158         u32 *pageaddr;
3159
3160         ASSERT(adapter->state == ADAPT_DOWN);
3161         memset(&adapter->cmdq_all, 0, sizeof(struct slic_cmdqueue));
3162         memset(&adapter->cmdq_free, 0, sizeof(struct slic_cmdqueue));
3163         memset(&adapter->cmdq_done, 0, sizeof(struct slic_cmdqueue));
3164         spin_lock_init(&adapter->cmdq_all.lock.lock);
3165         spin_lock_init(&adapter->cmdq_free.lock.lock);
3166         spin_lock_init(&adapter->cmdq_done.lock.lock);
3167         slic_cmdqmem_init(adapter);
3168         adapter->slic_handle_ix = 1;
3169         for (i = 0; i < SLIC_CMDQ_INITPAGES; i++) {
3170                 pageaddr = slic_cmdqmem_addpage(adapter);
3171 #ifndef CONFIG_X86_64
3172                 ASSERT(((u32) pageaddr & 0xFFFFF000) == (u32) pageaddr);
3173 #endif
3174                 if (!pageaddr) {
3175                         slic_cmdq_free(adapter);
3176                         return STATUS_FAILURE;
3177                 }
3178                 slic_cmdq_addcmdpage(adapter, pageaddr);
3179         }
3180         adapter->slic_handle_ix = 1;
3181
3182         return STATUS_SUCCESS;
3183 }
3184
3185 static void slic_cmdq_free(struct adapter *adapter)
3186 {
3187         struct slic_hostcmd *cmd;
3188
3189         cmd = adapter->cmdq_all.head;
3190         while (cmd) {
3191                 if (cmd->busy) {
3192                         struct sk_buff *tempskb;
3193
3194                         tempskb = cmd->skb;
3195                         if (tempskb) {
3196                                 cmd->skb = NULL;
3197                                 dev_kfree_skb_irq(tempskb);
3198                         }
3199                 }
3200                 cmd = cmd->next_all;
3201         }
3202         memset(&adapter->cmdq_all, 0, sizeof(struct slic_cmdqueue));
3203         memset(&adapter->cmdq_free, 0, sizeof(struct slic_cmdqueue));
3204         memset(&adapter->cmdq_done, 0, sizeof(struct slic_cmdqueue));
3205         slic_cmdqmem_free(adapter);
3206 }
3207
3208 static void slic_cmdq_reset(struct adapter *adapter)
3209 {
3210         struct slic_hostcmd *hcmd;
3211         struct sk_buff *skb;
3212         u32 outstanding;
3213
3214         spin_lock_irqsave(&adapter->cmdq_free.lock.lock,
3215                         adapter->cmdq_free.lock.flags);
3216         spin_lock_irqsave(&adapter->cmdq_done.lock.lock,
3217                         adapter->cmdq_done.lock.flags);
3218         outstanding = adapter->cmdq_all.count - adapter->cmdq_done.count;
3219         outstanding -= adapter->cmdq_free.count;
3220         hcmd = adapter->cmdq_all.head;
3221         while (hcmd) {
3222                 if (hcmd->busy) {
3223                         skb = hcmd->skb;
3224                         ASSERT(skb);
3225                         hcmd->busy = 0;
3226                         hcmd->skb = NULL;
3227                         dev_kfree_skb_irq(skb);
3228                 }
3229                 hcmd = hcmd->next_all;
3230         }
3231         adapter->cmdq_free.count = 0;
3232         adapter->cmdq_free.head = NULL;
3233         adapter->cmdq_free.tail = NULL;
3234         adapter->cmdq_done.count = 0;
3235         adapter->cmdq_done.head = NULL;
3236         adapter->cmdq_done.tail = NULL;
3237         adapter->cmdq_free.head = adapter->cmdq_all.head;
3238         hcmd = adapter->cmdq_all.head;
3239         while (hcmd) {
3240                 adapter->cmdq_free.count++;
3241                 hcmd->next = hcmd->next_all;
3242                 hcmd = hcmd->next_all;
3243         }
3244         if (adapter->cmdq_free.count != adapter->cmdq_all.count) {
3245                 dev_err(&adapter->netdev->dev,
3246                         "free_count %d != all count %d\n",
3247                         adapter->cmdq_free.count, adapter->cmdq_all.count);
3248         }
3249         spin_unlock_irqrestore(&adapter->cmdq_done.lock.lock,
3250                                 adapter->cmdq_done.lock.flags);
3251         spin_unlock_irqrestore(&adapter->cmdq_free.lock.lock,
3252                                 adapter->cmdq_free.lock.flags);
3253 }
3254
3255 static void slic_cmdq_addcmdpage(struct adapter *adapter, u32 *page)
3256 {
3257         struct slic_hostcmd *cmd;
3258         struct slic_hostcmd *prev;
3259         struct slic_hostcmd *tail;
3260         struct slic_cmdqueue *cmdq;
3261         int cmdcnt;
3262         void *cmdaddr;
3263         ulong phys_addr;
3264         u32 phys_addrl;
3265         u32 phys_addrh;
3266         struct slic_handle *pslic_handle;
3267
3268         cmdaddr = page;
3269         cmd = (struct slic_hostcmd *)cmdaddr;
3270         cmdcnt = 0;
3271
3272         phys_addr = virt_to_bus((void *)page);
3273         phys_addrl = SLIC_GET_ADDR_LOW(phys_addr);
3274         phys_addrh = SLIC_GET_ADDR_HIGH(phys_addr);
3275
3276         prev = NULL;
3277         tail = cmd;
3278         while ((cmdcnt < SLIC_CMDQ_CMDSINPAGE) &&
3279                (adapter->slic_handle_ix < 256)) {
3280                 /* Allocate and initialize a SLIC_HANDLE for this command */
3281                 SLIC_GET_SLIC_HANDLE(adapter, pslic_handle);
3282                 if (pslic_handle == NULL)
3283                         ASSERT(0);
3284                 ASSERT(pslic_handle ==
3285                        &adapter->slic_handles[pslic_handle->token.
3286                                               handle_index]);
3287                 pslic_handle->type = SLIC_HANDLE_CMD;
3288                 pslic_handle->address = (void *) cmd;
3289                 pslic_handle->offset = (ushort) adapter->slic_handle_ix++;
3290                 pslic_handle->other_handle = NULL;
3291                 pslic_handle->next = NULL;
3292
3293                 cmd->pslic_handle = pslic_handle;
3294                 cmd->cmd64.hosthandle = pslic_handle->token.handle_token;
3295                 cmd->busy = false;
3296                 cmd->paddrl = phys_addrl;
3297                 cmd->paddrh = phys_addrh;
3298                 cmd->next_all = prev;
3299                 cmd->next = prev;
3300                 prev = cmd;
3301                 phys_addrl += SLIC_HOSTCMD_SIZE;
3302                 cmdaddr += SLIC_HOSTCMD_SIZE;
3303
3304                 cmd = (struct slic_hostcmd *)cmdaddr;
3305                 cmdcnt++;
3306         }
3307
3308         cmdq = &adapter->cmdq_all;
3309         cmdq->count += cmdcnt;  /*  SLIC_CMDQ_CMDSINPAGE;   mooktodo */
3310         tail->next_all = cmdq->head;
3311         cmdq->head = prev;
3312         cmdq = &adapter->cmdq_free;
3313         spin_lock_irqsave(&cmdq->lock.lock, cmdq->lock.flags);
3314         cmdq->count += cmdcnt;  /*  SLIC_CMDQ_CMDSINPAGE;   mooktodo */
3315         tail->next = cmdq->head;
3316         cmdq->head = prev;
3317         spin_unlock_irqrestore(&cmdq->lock.lock, cmdq->lock.flags);
3318 }
3319
3320 static struct slic_hostcmd *slic_cmdq_getfree(struct adapter *adapter)
3321 {
3322         struct slic_cmdqueue *cmdq = &adapter->cmdq_free;
3323         struct slic_hostcmd *cmd = NULL;
3324
3325 lock_and_retry:
3326         spin_lock_irqsave(&cmdq->lock.lock, cmdq->lock.flags);
3327 retry:
3328         cmd = cmdq->head;
3329         if (cmd) {
3330                 cmdq->head = cmd->next;
3331                 cmdq->count--;
3332                 spin_unlock_irqrestore(&cmdq->lock.lock, cmdq->lock.flags);
3333         } else {
3334                 slic_cmdq_getdone(adapter);
3335                 cmd = cmdq->head;
3336                 if (cmd) {
3337                         goto retry;
3338                 } else {
3339                         u32 *pageaddr;
3340
3341                         spin_unlock_irqrestore(&cmdq->lock.lock,
3342                                                 cmdq->lock.flags);
3343                         pageaddr = slic_cmdqmem_addpage(adapter);
3344                         if (pageaddr) {
3345                                 slic_cmdq_addcmdpage(adapter, pageaddr);
3346                                 goto lock_and_retry;
3347                         }
3348                 }
3349         }
3350         return cmd;
3351 }
3352
3353 static void slic_cmdq_getdone(struct adapter *adapter)
3354 {
3355         struct slic_cmdqueue *done_cmdq = &adapter->cmdq_done;
3356         struct slic_cmdqueue *free_cmdq = &adapter->cmdq_free;
3357
3358         ASSERT(free_cmdq->head == NULL);
3359         spin_lock_irqsave(&done_cmdq->lock.lock, done_cmdq->lock.flags);
3360
3361         free_cmdq->head = done_cmdq->head;
3362         free_cmdq->count = done_cmdq->count;
3363         done_cmdq->head = NULL;
3364         done_cmdq->tail = NULL;
3365         done_cmdq->count = 0;
3366         spin_unlock_irqrestore(&done_cmdq->lock.lock, done_cmdq->lock.flags);
3367 }
3368
3369 static void slic_cmdq_putdone_irq(struct adapter *adapter,
3370                                 struct slic_hostcmd *cmd)
3371 {
3372         struct slic_cmdqueue *cmdq = &adapter->cmdq_done;
3373
3374         spin_lock(&cmdq->lock.lock);
3375         cmd->busy = 0;
3376         cmd->next = cmdq->head;
3377         cmdq->head = cmd;
3378         cmdq->count++;
3379         if ((adapter->xmitq_full) && (cmdq->count > 10))
3380                 netif_wake_queue(adapter->netdev);
3381         spin_unlock(&cmdq->lock.lock);
3382 }
3383
3384 static int slic_rcvqueue_init(struct adapter *adapter)
3385 {
3386         int i, count;
3387         struct slic_rcvqueue *rcvq = &adapter->rcvqueue;
3388
3389         ASSERT(adapter->state == ADAPT_DOWN);
3390         rcvq->tail = NULL;
3391         rcvq->head = NULL;
3392         rcvq->size = SLIC_RCVQ_ENTRIES;
3393         rcvq->errors = 0;
3394         rcvq->count = 0;
3395         i = (SLIC_RCVQ_ENTRIES / SLIC_RCVQ_FILLENTRIES);
3396         count = 0;
3397         while (i) {
3398                 count += slic_rcvqueue_fill(adapter);
3399                 i--;
3400         }
3401         if (rcvq->count < SLIC_RCVQ_MINENTRIES) {
3402                 slic_rcvqueue_free(adapter);
3403                 return STATUS_FAILURE;
3404         }
3405         return STATUS_SUCCESS;
3406 }
3407
3408 static void slic_rcvqueue_free(struct adapter *adapter)
3409 {
3410         struct slic_rcvqueue *rcvq = &adapter->rcvqueue;
3411         struct sk_buff *skb;
3412
3413         while (rcvq->head) {
3414                 skb = rcvq->head;
3415                 rcvq->head = rcvq->head->next;
3416                 dev_kfree_skb(skb);
3417         }
3418         rcvq->tail = NULL;
3419         rcvq->head = NULL;
3420         rcvq->count = 0;
3421 }
3422
3423 static struct sk_buff *slic_rcvqueue_getnext(struct adapter *adapter)
3424 {
3425         struct slic_rcvqueue *rcvq = &adapter->rcvqueue;
3426         struct sk_buff *skb;
3427         struct slic_rcvbuf *rcvbuf;
3428         int count;
3429
3430         if (rcvq->count) {
3431                 skb = rcvq->head;
3432                 rcvbuf = (struct slic_rcvbuf *)skb->head;
3433                 ASSERT(rcvbuf);
3434
3435                 if (rcvbuf->status & IRHDDR_SVALID) {
3436                         rcvq->head = rcvq->head->next;
3437                         skb->next = NULL;
3438                         rcvq->count--;
3439                 } else {
3440                         skb = NULL;
3441                 }
3442         } else {
3443                 dev_err(&adapter->netdev->dev,
3444                         "RcvQ Empty!! rcvq[%p] count[%x]\n", rcvq, rcvq->count);
3445                 skb = NULL;
3446         }
3447         while (rcvq->count < SLIC_RCVQ_FILLTHRESH) {
3448                 count = slic_rcvqueue_fill(adapter);
3449                 if (!count)
3450                         break;
3451         }
3452         if (skb)
3453                 rcvq->errors = 0;
3454         return skb;
3455 }
3456
3457 static int slic_rcvqueue_fill(struct adapter *adapter)
3458 {
3459         void *paddr;
3460         u32 paddrl;
3461         u32 paddrh;
3462         struct slic_rcvqueue *rcvq = &adapter->rcvqueue;
3463         int i = 0;
3464         struct device *dev = &adapter->netdev->dev;
3465
3466         while (i < SLIC_RCVQ_FILLENTRIES) {
3467                 struct slic_rcvbuf *rcvbuf;
3468                 struct sk_buff *skb;
3469 #ifdef KLUDGE_FOR_4GB_BOUNDARY
3470 retry_rcvqfill:
3471 #endif
3472                 skb = alloc_skb(SLIC_RCVQ_RCVBUFSIZE, GFP_ATOMIC);
3473                 if (skb) {
3474                         paddr = (void *)pci_map_single(adapter->pcidev,
3475                                                           skb->data,
3476                                                           SLIC_RCVQ_RCVBUFSIZE,
3477                                                           PCI_DMA_FROMDEVICE);
3478                         paddrl = SLIC_GET_ADDR_LOW(paddr);
3479                         paddrh = SLIC_GET_ADDR_HIGH(paddr);
3480
3481                         skb->len = SLIC_RCVBUF_HEADSIZE;
3482                         rcvbuf = (struct slic_rcvbuf *)skb->head;
3483                         rcvbuf->status = 0;
3484                         skb->next = NULL;
3485 #ifdef KLUDGE_FOR_4GB_BOUNDARY
3486                         if (paddrl == 0) {
3487                                 dev_err(dev, "%s: LOW 32bits PHYSICAL ADDRESS == 0\n",
3488                                         __func__);
3489                                 dev_err(dev, "skb[%p] PROBLEM\n", skb);
3490                                 dev_err(dev, "         skbdata[%p]\n", skb->data);
3491                                 dev_err(dev, "         skblen[%x]\n", skb->len);
3492                                 dev_err(dev, "         paddr[%p]\n", paddr);
3493                                 dev_err(dev, "         paddrl[%x]\n", paddrl);
3494                                 dev_err(dev, "         paddrh[%x]\n", paddrh);
3495                                 dev_err(dev, "         rcvq->head[%p]\n", rcvq->head);
3496                                 dev_err(dev, "         rcvq->tail[%p]\n", rcvq->tail);
3497                                 dev_err(dev, "         rcvq->count[%x]\n", rcvq->count);
3498                                 dev_err(dev, "SKIP THIS SKB!!!!!!!!\n");
3499                                 goto retry_rcvqfill;
3500                         }
3501 #else
3502                         if (paddrl == 0) {
3503                                 dev_err(dev, "%s: LOW 32bits PHYSICAL ADDRESS == 0\n",
3504                                         __func__);
3505                                 dev_err(dev, "skb[%p] PROBLEM\n", skb);
3506                                 dev_err(dev, "         skbdata[%p]\n", skb->data);
3507                                 dev_err(dev, "         skblen[%x]\n", skb->len);
3508                                 dev_err(dev, "         paddr[%p]\n", paddr);
3509                                 dev_err(dev, "         paddrl[%x]\n", paddrl);
3510                                 dev_err(dev, "         paddrh[%x]\n", paddrh);
3511                                 dev_err(dev, "         rcvq->head[%p]\n", rcvq->head);
3512                                 dev_err(dev, "         rcvq->tail[%p]\n", rcvq->tail);
3513                                 dev_err(dev, "         rcvq->count[%x]\n", rcvq->count);
3514                                 dev_err(dev, "GIVE TO CARD ANYWAY\n");
3515                         }
3516 #endif
3517                         if (paddrh == 0) {
3518                                 slic_reg32_write(&adapter->slic_regs->slic_hbar,
3519                                                  (u32)paddrl, DONT_FLUSH);
3520                         } else {
3521                                 slic_reg64_write(adapter,
3522                                         &adapter->slic_regs->slic_hbar64,
3523                                         paddrl,
3524                                         &adapter->slic_regs->slic_addr_upper,
3525                                         paddrh, DONT_FLUSH);
3526                         }
3527                         if (rcvq->head)
3528                                 rcvq->tail->next = skb;
3529                         else
3530                                 rcvq->head = skb;
3531                         rcvq->tail = skb;
3532                         rcvq->count++;
3533                         i++;
3534                 } else {
3535                         dev_err(&adapter->netdev->dev,
3536                                 "slic_rcvqueue_fill could only get [%d] skbuffs\n",
3537                                 i);
3538                         break;
3539                 }
3540         }
3541         return i;
3542 }
3543
3544 static u32 slic_rcvqueue_reinsert(struct adapter *adapter, struct sk_buff *skb)
3545 {
3546         struct slic_rcvqueue *rcvq = &adapter->rcvqueue;
3547         void *paddr;
3548         u32 paddrl;
3549         u32 paddrh;
3550         struct slic_rcvbuf *rcvbuf = (struct slic_rcvbuf *)skb->head;
3551         struct device *dev;
3552
3553         ASSERT(skb->len == SLIC_RCVBUF_HEADSIZE);
3554
3555         paddr = (void *)pci_map_single(adapter->pcidev, skb->head,
3556                                   SLIC_RCVQ_RCVBUFSIZE, PCI_DMA_FROMDEVICE);
3557         rcvbuf->status = 0;
3558         skb->next = NULL;
3559
3560         paddrl = SLIC_GET_ADDR_LOW(paddr);
3561         paddrh = SLIC_GET_ADDR_HIGH(paddr);
3562
3563         if (paddrl == 0) {
3564                 dev = &adapter->netdev->dev;
3565                 dev_err(dev, "%s: LOW 32bits PHYSICAL ADDRESS == 0\n",
3566                         __func__);
3567                 dev_err(dev, "skb[%p] PROBLEM\n", skb);
3568                 dev_err(dev, "         skbdata[%p]\n", skb->data);
3569                 dev_err(dev, "         skblen[%x]\n", skb->len);
3570                 dev_err(dev, "         paddr[%p]\n", paddr);
3571                 dev_err(dev, "         paddrl[%x]\n", paddrl);
3572                 dev_err(dev, "         paddrh[%x]\n", paddrh);
3573                 dev_err(dev, "         rcvq->head[%p]\n", rcvq->head);
3574                 dev_err(dev, "         rcvq->tail[%p]\n", rcvq->tail);
3575                 dev_err(dev, "         rcvq->count[%x]\n", rcvq->count);
3576         }
3577         if (paddrh == 0) {
3578                 slic_reg32_write(&adapter->slic_regs->slic_hbar, (u32)paddrl,
3579                                  DONT_FLUSH);
3580         } else {
3581                 slic_reg64_write(adapter, &adapter->slic_regs->slic_hbar64,
3582                                  paddrl, &adapter->slic_regs->slic_addr_upper,
3583                                  paddrh, DONT_FLUSH);
3584         }
3585         if (rcvq->head)
3586                 rcvq->tail->next = skb;
3587         else
3588                 rcvq->head = skb;
3589         rcvq->tail = skb;
3590         rcvq->count++;
3591         return rcvq->count;
3592 }
3593
3594 static int slic_debug_card_show(struct seq_file *seq, void *v)
3595 {
3596 #ifdef MOOKTODO
3597         int i;
3598         struct sliccard *card = seq->private;
3599         struct slic_config *config = &card->config;
3600         unsigned char *fru = (unsigned char *)(&card->config.atk_fru);
3601         unsigned char *oemfru = (unsigned char *)(&card->config.OemFru);
3602 #endif
3603
3604         seq_printf(seq, "driver_version           : %s\n", slic_proc_version);
3605         seq_printf(seq, "Microcode versions:           \n");
3606         seq_printf(seq, "    Gigabit (gb)         : %s %s\n",
3607                     MOJAVE_UCODE_VERS_STRING, MOJAVE_UCODE_VERS_DATE);
3608         seq_printf(seq, "    Gigabit Receiver     : %s %s\n",
3609                     GB_RCVUCODE_VERS_STRING, GB_RCVUCODE_VERS_DATE);
3610         seq_printf(seq, "Vendor                   : %s\n", slic_vendor);
3611         seq_printf(seq, "Product Name             : %s\n", slic_product_name);
3612 #ifdef MOOKTODO
3613         seq_printf(seq, "VendorId                 : %4.4X\n",
3614                     config->VendorId);
3615         seq_printf(seq, "DeviceId                 : %4.4X\n",
3616                     config->DeviceId);
3617         seq_printf(seq, "RevisionId               : %2.2x\n",
3618                     config->RevisionId);
3619         seq_printf(seq, "Bus    #                 : %d\n", card->busnumber);
3620         seq_printf(seq, "Device #                 : %d\n", card->slotnumber);
3621         seq_printf(seq, "Interfaces               : %d\n", card->card_size);
3622         seq_printf(seq, "     Initialized         : %d\n",
3623                     card->adapters_activated);
3624         seq_printf(seq, "     Allocated           : %d\n",
3625                     card->adapters_allocated);
3626         ASSERT(card->card_size <= SLIC_NBR_MACS);
3627         for (i = 0; i < card->card_size; i++) {
3628                 seq_printf(seq,
3629                            "     MAC%d : %2.2X %2.2X %2.2X %2.2X %2.2X %2.2X\n",
3630                            i, config->macinfo[i].macaddrA[0],
3631                            config->macinfo[i].macaddrA[1],
3632                            config->macinfo[i].macaddrA[2],
3633                            config->macinfo[i].macaddrA[3],
3634                            config->macinfo[i].macaddrA[4],
3635                            config->macinfo[i].macaddrA[5]);
3636         }
3637         seq_printf(seq, "     IF  Init State Duplex/Speed irq\n");
3638         seq_printf(seq, "     -------------------------------\n");
3639         for (i = 0; i < card->adapters_allocated; i++) {
3640                 struct adapter *adapter;
3641
3642                 adapter = card->adapter[i];
3643                 if (adapter) {
3644                         seq_printf(seq,
3645                                     "     %d   %d   %s  %s  %s    0x%X\n",
3646                                     adapter->physport, adapter->state,
3647                                     SLIC_LINKSTATE(adapter->linkstate),
3648                                     SLIC_DUPLEX(adapter->linkduplex),
3649                                     SLIC_SPEED(adapter->linkspeed),
3650                                     (uint) adapter->irq);
3651                 }
3652         }
3653         seq_printf(seq, "Generation #             : %4.4X\n", card->gennumber);
3654         seq_printf(seq, "RcvQ max entries         : %4.4X\n",
3655                     SLIC_RCVQ_ENTRIES);
3656         seq_printf(seq, "Ping Status              : %8.8X\n",
3657                     card->pingstatus);
3658         seq_printf(seq, "Minimum grant            : %2.2x\n",
3659                     config->MinGrant);
3660         seq_printf(seq, "Maximum Latency          : %2.2x\n", config->MaxLat);
3661         seq_printf(seq, "PciStatus                : %4.4x\n",
3662                     config->Pcistatus);
3663         seq_printf(seq, "Debug Device Id          : %4.4x\n",
3664                     config->DbgDevId);
3665         seq_printf(seq, "DRAM ROM Function        : %4.4x\n",
3666                     config->DramRomFn);
3667         seq_printf(seq, "Network interface Pin 1  : %2.2x\n",
3668                     config->NetIntPin1);
3669         seq_printf(seq, "Network interface Pin 2  : %2.2x\n",
3670                     config->NetIntPin1);
3671         seq_printf(seq, "Network interface Pin 3  : %2.2x\n",
3672                     config->NetIntPin1);
3673         seq_printf(seq, "PM capabilities          : %4.4X\n",
3674                     config->PMECapab);
3675         seq_printf(seq, "Network Clock Controls   : %4.4X\n",
3676                     config->NwClkCtrls);
3677
3678         switch (config->FruFormat) {
3679         case ATK_FRU_FORMAT:
3680                 {
3681                         seq_printf(seq,
3682                             "Vendor                   : Alacritech, Inc.\n");
3683                         seq_printf(seq,
3684                             "Assembly #               : %c%c%c%c%c%c\n",
3685                                     fru[0], fru[1], fru[2], fru[3], fru[4],
3686                                     fru[5]);
3687                         seq_printf(seq,
3688                                     "Revision #               : %c%c\n",
3689                                     fru[6], fru[7]);
3690
3691                         if (config->OEMFruFormat == VENDOR4_FRU_FORMAT) {
3692                                 seq_printf(seq,
3693                                             "Serial   #               : "
3694                                             "%c%c%c%c%c%c%c%c%c%c%c%c\n",
3695                                             fru[8], fru[9], fru[10],
3696                                             fru[11], fru[12], fru[13],
3697                                             fru[16], fru[17], fru[18],
3698                                             fru[19], fru[20], fru[21]);
3699                         } else {
3700                                 seq_printf(seq,
3701                                             "Serial   #               : "
3702                                             "%c%c%c%c%c%c%c%c%c%c%c%c%c%c\n",
3703                                             fru[8], fru[9], fru[10],
3704                                             fru[11], fru[12], fru[13],
3705                                             fru[14], fru[15], fru[16],
3706                                             fru[17], fru[18], fru[19],
3707                                             fru[20], fru[21]);
3708                         }
3709                         break;
3710                 }
3711
3712         default:
3713                 {
3714                         seq_printf(seq,
3715                             "Vendor                   : Alacritech, Inc.\n");
3716                         seq_printf(seq,
3717                             "Serial   #               : Empty FRU\n");
3718                         break;
3719                 }
3720         }
3721
3722         switch (config->OEMFruFormat) {
3723         case VENDOR1_FRU_FORMAT:
3724                 {
3725                         seq_printf(seq, "FRU Information:\n");
3726                         seq_printf(seq, "    Commodity #          : %c\n",
3727                                     oemfru[0]);
3728                         seq_printf(seq,
3729                                     "    Assembly #           : %c%c%c%c\n",
3730                                     oemfru[1], oemfru[2], oemfru[3], oemfru[4]);
3731                         seq_printf(seq,
3732                                     "    Revision #           : %c%c\n",
3733                                     oemfru[5], oemfru[6]);
3734                         seq_printf(seq,
3735                                     "    Supplier #           : %c%c\n",
3736                                     oemfru[7], oemfru[8]);
3737                         seq_printf(seq,
3738                                     "    Date                 : %c%c\n",
3739                                     oemfru[9], oemfru[10]);
3740                         seq_sprintf(seq,
3741                                     "    Sequence #           : %c%c%c\n",
3742                                     oemfru[11], oemfru[12], oemfru[13]);
3743                         break;
3744                 }
3745
3746         case VENDOR2_FRU_FORMAT:
3747                 {
3748                         seq_printf(seq, "FRU Information:\n");
3749                         seq_printf(seq,
3750                                     "    Part     #           : "
3751                                     "%c%c%c%c%c%c%c%c\n",
3752                                     oemfru[0], oemfru[1], oemfru[2],
3753                                     oemfru[3], oemfru[4], oemfru[5],
3754                                     oemfru[6], oemfru[7]);
3755                         seq_printf(seq,
3756                                     "    Supplier #           : %c%c%c%c%c\n",
3757                                     oemfru[8], oemfru[9], oemfru[10],
3758                                     oemfru[11], oemfru[12]);
3759                         seq_printf(seq,
3760                                     "    Date                 : %c%c%c\n",
3761                                     oemfru[13], oemfru[14], oemfru[15]);
3762                         seq_sprintf(seq,
3763                                     "    Sequence #           : %c%c%c%c\n",
3764                                     oemfru[16], oemfru[17], oemfru[18],
3765                                     oemfru[19]);
3766                         break;
3767                 }
3768
3769         case VENDOR3_FRU_FORMAT:
3770                 {
3771                         seq_printf(seq, "FRU Information:\n");
3772                 }
3773
3774         case VENDOR4_FRU_FORMAT:
3775                 {
3776                         seq_printf(seq, "FRU Information:\n");
3777                         seq_printf(seq,
3778                                     "    FRU Number           : "
3779                                     "%c%c%c%c%c%c%c%c\n",
3780                                     oemfru[0], oemfru[1], oemfru[2],
3781                                     oemfru[3], oemfru[4], oemfru[5],
3782                                     oemfru[6], oemfru[7]);
3783                         seq_sprintf(seq,
3784                                     "    Part Number          : "
3785                                     "%c%c%c%c%c%c%c%c\n",
3786                                     oemfru[8], oemfru[9], oemfru[10],
3787                                     oemfru[11], oemfru[12], oemfru[13],
3788                                     oemfru[14], oemfru[15]);
3789                         seq_printf(seq,
3790                                     "    EC Level             : "
3791                                     "%c%c%c%c%c%c%c%c\n",
3792                                     oemfru[16], oemfru[17], oemfru[18],
3793                                     oemfru[19], oemfru[20], oemfru[21],
3794                                     oemfru[22], oemfru[23]);
3795                         break;
3796                 }
3797
3798         default:
3799                 break;
3800         }
3801 #endif
3802
3803         return 0;
3804 }
3805
3806 static int slic_debug_adapter_show(struct seq_file *seq, void *v)
3807 {
3808         struct adapter *adapter = seq->private;
3809
3810         if ((adapter->netdev) && (adapter->netdev->name)) {
3811                 seq_printf(seq, "info: interface          : %s\n",
3812                             adapter->netdev->name);
3813         }
3814         seq_printf(seq, "info: status             : %s\n",
3815                 SLIC_LINKSTATE(adapter->linkstate));
3816         seq_printf(seq, "info: port               : %d\n",
3817                 adapter->physport);
3818         seq_printf(seq, "info: speed              : %s\n",
3819                 SLIC_SPEED(adapter->linkspeed));
3820         seq_printf(seq, "info: duplex             : %s\n",
3821                 SLIC_DUPLEX(adapter->linkduplex));
3822         seq_printf(seq, "info: irq                : 0x%X\n",
3823                 (uint) adapter->irq);
3824         seq_printf(seq, "info: Interrupt Agg Delay: %d usec\n",
3825                 adapter->card->loadlevel_current);
3826         seq_printf(seq, "info: RcvQ max entries   : %4.4X\n",
3827                 SLIC_RCVQ_ENTRIES);
3828         seq_printf(seq, "info: RcvQ current       : %4.4X\n",
3829                     adapter->rcvqueue.count);
3830         seq_printf(seq, "rx stats: packets                  : %8.8lX\n",
3831                     adapter->stats.rx_packets);
3832         seq_printf(seq, "rx stats: bytes                    : %8.8lX\n",
3833                     adapter->stats.rx_bytes);
3834         seq_printf(seq, "rx stats: broadcasts               : %8.8X\n",
3835                     adapter->rcv_broadcasts);
3836         seq_printf(seq, "rx stats: multicasts               : %8.8X\n",
3837                     adapter->rcv_multicasts);
3838         seq_printf(seq, "rx stats: unicasts                 : %8.8X\n",
3839                     adapter->rcv_unicasts);
3840         seq_printf(seq, "rx stats: errors                   : %8.8X\n",
3841                     (u32) adapter->slic_stats.iface.rcv_errors);
3842         seq_printf(seq, "rx stats: Missed errors            : %8.8X\n",
3843                     (u32) adapter->slic_stats.iface.rcv_discards);
3844         seq_printf(seq, "rx stats: drops                    : %8.8X\n",
3845                         (u32) adapter->rcv_drops);
3846         seq_printf(seq, "tx stats: packets                  : %8.8lX\n",
3847                         adapter->stats.tx_packets);
3848         seq_printf(seq, "tx stats: bytes                    : %8.8lX\n",
3849                         adapter->stats.tx_bytes);
3850         seq_printf(seq, "tx stats: errors                   : %8.8X\n",
3851                         (u32) adapter->slic_stats.iface.xmt_errors);
3852         seq_printf(seq, "rx stats: multicasts               : %8.8lX\n",
3853                         adapter->stats.multicast);
3854         seq_printf(seq, "tx stats: collision errors         : %8.8X\n",
3855                         (u32) adapter->slic_stats.iface.xmit_collisions);
3856         seq_printf(seq, "perf: Max rcv frames/isr           : %8.8X\n",
3857                         adapter->max_isr_rcvs);
3858         seq_printf(seq, "perf: Rcv interrupt yields         : %8.8X\n",
3859                         adapter->rcv_interrupt_yields);
3860         seq_printf(seq, "perf: Max xmit complete/isr        : %8.8X\n",
3861                         adapter->max_isr_xmits);
3862         seq_printf(seq, "perf: error interrupts             : %8.8X\n",
3863                         adapter->error_interrupts);
3864         seq_printf(seq, "perf: error rmiss interrupts       : %8.8X\n",
3865                         adapter->error_rmiss_interrupts);
3866         seq_printf(seq, "perf: rcv interrupts               : %8.8X\n",
3867                         adapter->rcv_interrupts);
3868         seq_printf(seq, "perf: xmit interrupts              : %8.8X\n",
3869                         adapter->xmit_interrupts);
3870         seq_printf(seq, "perf: link event interrupts        : %8.8X\n",
3871                         adapter->linkevent_interrupts);
3872         seq_printf(seq, "perf: UPR interrupts               : %8.8X\n",
3873                         adapter->upr_interrupts);
3874         seq_printf(seq, "perf: interrupt count              : %8.8X\n",
3875                         adapter->num_isrs);
3876         seq_printf(seq, "perf: false interrupts             : %8.8X\n",
3877                         adapter->false_interrupts);
3878         seq_printf(seq, "perf: All register writes          : %8.8X\n",
3879                         adapter->all_reg_writes);
3880         seq_printf(seq, "perf: ICR register writes          : %8.8X\n",
3881                         adapter->icr_reg_writes);
3882         seq_printf(seq, "perf: ISR register writes          : %8.8X\n",
3883                         adapter->isr_reg_writes);
3884         seq_printf(seq, "ifevents: overflow 802 errors      : %8.8X\n",
3885                         adapter->if_events.oflow802);
3886         seq_printf(seq, "ifevents: transport overflow errors: %8.8X\n",
3887                         adapter->if_events.Tprtoflow);
3888         seq_printf(seq, "ifevents: underflow errors         : %8.8X\n",
3889                         adapter->if_events.uflow802);
3890         seq_printf(seq, "ifevents: receive early            : %8.8X\n",
3891                         adapter->if_events.rcvearly);
3892         seq_printf(seq, "ifevents: buffer overflows         : %8.8X\n",
3893                         adapter->if_events.Bufov);
3894         seq_printf(seq, "ifevents: carrier errors           : %8.8X\n",
3895                         adapter->if_events.Carre);
3896         seq_printf(seq, "ifevents: Long                     : %8.8X\n",
3897                         adapter->if_events.Longe);
3898         seq_printf(seq, "ifevents: invalid preambles        : %8.8X\n",
3899                         adapter->if_events.Invp);
3900         seq_printf(seq, "ifevents: CRC errors               : %8.8X\n",
3901                         adapter->if_events.Crc);
3902         seq_printf(seq, "ifevents: dribble nibbles          : %8.8X\n",
3903                         adapter->if_events.Drbl);
3904         seq_printf(seq, "ifevents: Code violations          : %8.8X\n",
3905                         adapter->if_events.Code);
3906         seq_printf(seq, "ifevents: TCP checksum errors      : %8.8X\n",
3907                         adapter->if_events.TpCsum);
3908         seq_printf(seq, "ifevents: TCP header short errors  : %8.8X\n",
3909                         adapter->if_events.TpHlen);
3910         seq_printf(seq, "ifevents: IP checksum errors       : %8.8X\n",
3911                         adapter->if_events.IpCsum);
3912         seq_printf(seq, "ifevents: IP frame incompletes     : %8.8X\n",
3913                         adapter->if_events.IpLen);
3914         seq_printf(seq, "ifevents: IP headers shorts        : %8.8X\n",
3915                         adapter->if_events.IpHlen);
3916
3917         return 0;
3918 }
3919 static int slic_debug_adapter_open(struct inode *inode, struct file *file)
3920 {
3921         return single_open(file, slic_debug_adapter_show, inode->i_private);
3922 }
3923
3924 static int slic_debug_card_open(struct inode *inode, struct file *file)
3925 {
3926         return single_open(file, slic_debug_card_show, inode->i_private);
3927 }
3928
3929 static const struct file_operations slic_debug_adapter_fops = {
3930         .owner          = THIS_MODULE,
3931         .open           = slic_debug_adapter_open,
3932         .read           = seq_read,
3933         .llseek         = seq_lseek,
3934         .release        = single_release,
3935 };
3936
3937 static const struct file_operations slic_debug_card_fops = {
3938         .owner          = THIS_MODULE,
3939         .open           = slic_debug_card_open,
3940         .read           = seq_read,
3941         .llseek         = seq_lseek,
3942         .release        = single_release,
3943 };
3944
3945 static void slic_debug_adapter_create(struct adapter *adapter)
3946 {
3947         struct dentry *d;
3948         char    name[7];
3949         struct sliccard *card = adapter->card;
3950
3951         if (!card->debugfs_dir)
3952                 return;
3953
3954         sprintf(name, "port%d", adapter->port);
3955         d = debugfs_create_file(name, S_IRUGO,
3956                                 card->debugfs_dir, adapter,
3957                                 &slic_debug_adapter_fops);
3958         if (!d || IS_ERR(d))
3959                 pr_info(PFX "%s: debugfs create failed\n", name);
3960         else
3961                 adapter->debugfs_entry = d;
3962 }
3963
3964 static void slic_debug_adapter_destroy(struct adapter *adapter)
3965 {
3966         if (adapter->debugfs_entry) {
3967                 debugfs_remove(adapter->debugfs_entry);
3968                 adapter->debugfs_entry = NULL;
3969         }
3970 }
3971
3972 static void slic_debug_card_create(struct sliccard *card)
3973 {
3974         struct dentry *d;
3975         char    name[IFNAMSIZ];
3976
3977         snprintf(name, sizeof(name), "slic%d", card->cardnum);
3978         d = debugfs_create_dir(name, slic_debugfs);
3979         if (!d || IS_ERR(d))
3980                 pr_info(PFX "%s: debugfs create dir failed\n",
3981                                 name);
3982         else {
3983                 card->debugfs_dir = d;
3984                 d = debugfs_create_file("cardinfo", S_IRUGO,
3985                                 slic_debugfs, card,
3986                                 &slic_debug_card_fops);
3987                 if (!d || IS_ERR(d))
3988                         pr_info(PFX "%s: debugfs create failed\n",
3989                                         name);
3990                 else
3991                         card->debugfs_cardinfo = d;
3992         }
3993 }
3994
3995 static void slic_debug_card_destroy(struct sliccard *card)
3996 {
3997         int i;
3998
3999         for (i = 0; i < card->card_size; i++) {
4000                 struct adapter *adapter;
4001
4002                 adapter = card->adapter[i];
4003                 if (adapter)
4004                         slic_debug_adapter_destroy(adapter);
4005         }
4006         if (card->debugfs_cardinfo) {
4007                 debugfs_remove(card->debugfs_cardinfo);
4008                 card->debugfs_cardinfo = NULL;
4009         }
4010         if (card->debugfs_dir) {
4011                 debugfs_remove(card->debugfs_dir);
4012                 card->debugfs_dir = NULL;
4013         }
4014 }
4015
4016 static void slic_debug_init(void)
4017 {
4018         struct dentry *ent;
4019
4020         ent = debugfs_create_dir("slic", NULL);
4021         if (!ent || IS_ERR(ent)) {
4022                 pr_info(PFX "debugfs create directory failed\n");
4023                 return;
4024         }
4025
4026         slic_debugfs = ent;
4027 }
4028
4029 static void slic_debug_cleanup(void)
4030 {
4031         if (slic_debugfs) {
4032                 debugfs_remove(slic_debugfs);
4033                 slic_debugfs = NULL;
4034         }
4035 }
4036
4037 /******************************************************************************/
4038 /****************   MODULE INITIATION / TERMINATION FUNCTIONS   ***************/
4039 /******************************************************************************/
4040
4041 static struct pci_driver slic_driver = {
4042         .name = DRV_NAME,
4043         .id_table = slic_pci_tbl,
4044         .probe = slic_entry_probe,
4045         .remove = slic_entry_remove,
4046 };
4047
4048 static int __init slic_module_init(void)
4049 {
4050         slic_init_driver();
4051
4052         if (debug >= 0 && slic_debug != debug)
4053                 printk(KERN_DEBUG KBUILD_MODNAME ": debug level is %d.\n",
4054                        debug);
4055         if (debug >= 0)
4056                 slic_debug = debug;
4057
4058         return pci_register_driver(&slic_driver);
4059 }
4060
4061 static void __exit slic_module_cleanup(void)
4062 {
4063         pci_unregister_driver(&slic_driver);
4064         slic_debug_cleanup();
4065 }
4066
4067 module_init(slic_module_init);
4068 module_exit(slic_module_cleanup);