drivers/net/qla3xxx.c

   1 /*
   2  * QLogic QLA3xxx NIC HBA Driver
   3  * Copyright (c)  2003-2006 QLogic Corporation
   4  *
   5  * See LICENSE.qla3xxx for copyright and licensing details.
   6  */
   7
   8 #include <linux/kernel.h>
   9 #include <linux/init.h>
  10 #include <linux/types.h>
  11 #include <linux/module.h>
  12 #include <linux/list.h>
  13 #include <linux/pci.h>
  14 #include <linux/dma-mapping.h>
  15 #include <linux/sched.h>
  16 #include <linux/slab.h>
  17 #include <linux/dmapool.h>
  18 #include <linux/mempool.h>
  19 #include <linux/spinlock.h>
  20 #include <linux/kthread.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/errno.h>
  23 #include <linux/ioport.h>
  24 #include <linux/ip.h>
  25 #include <linux/in.h>
  26 #include <linux/if_arp.h>
  27 #include <linux/if_ether.h>
  28 #include <linux/netdevice.h>
  29 #include <linux/etherdevice.h>
  30 #include <linux/ethtool.h>
  31 #include <linux/skbuff.h>
  32 #include <linux/rtnetlink.h>
  33 #include <linux/if_vlan.h>
  34 #include <linux/delay.h>
  35 #include <linux/mm.h>
  36
  37 #include "qla3xxx.h"
  38
  39 #define DRV_NAME        "qla3xxx"
  40 #define DRV_STRING      "QLogic ISP3XXX Network Driver"
  41 #define DRV_VERSION     "v2.03.00-k5"
  42 #define PFX             DRV_NAME " "
  43
  44 static const char ql3xxx_driver_name[] = DRV_NAME;
  45 static const char ql3xxx_driver_version[] = DRV_VERSION;
  46
  47 MODULE_AUTHOR("QLogic Corporation");
  48 MODULE_DESCRIPTION("QLogic ISP3XXX Network Driver " DRV_VERSION " ");
  49 MODULE_LICENSE("GPL");
  50 MODULE_VERSION(DRV_VERSION);
  51
  52 static const u32 default_msg
  53     = NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
  54     | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;
  55
  56 static int debug = -1;          /* defaults above */
  57 module_param(debug, int, 0);
  58 MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
  59
  60 static int msi;
  61 module_param(msi, int, 0);
  62 MODULE_PARM_DESC(msi, "Turn on Message Signaled Interrupts.");
  63
  64 static struct pci_device_id ql3xxx_pci_tbl[] __devinitdata = {
  65         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, QL3022_DEVICE_ID)},
  66         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, QL3032_DEVICE_ID)},
  67         /* required last entry */
  68         {0,}
  69 };
  70
  71 MODULE_DEVICE_TABLE(pci, ql3xxx_pci_tbl);
  72
  73 /*
  74  *  These are the known PHY's which are used
  75  */
  76 typedef enum {
  77    PHY_TYPE_UNKNOWN   = 0,
  78    PHY_VITESSE_VSC8211,
  79    PHY_AGERE_ET1011C,
  80    MAX_PHY_DEV_TYPES
  81 } PHY_DEVICE_et;
  82
  83 typedef struct {
  84         PHY_DEVICE_et phyDevice;
  85         u32             phyIdOUI;
  86         u16             phyIdModel;
  87         char            *name;
  88 } PHY_DEVICE_INFO_t;
  89
  90 static const PHY_DEVICE_INFO_t PHY_DEVICES[] =
  91         {{PHY_TYPE_UNKNOWN,    0x000000, 0x0, "PHY_TYPE_UNKNOWN"},
  92          {PHY_VITESSE_VSC8211, 0x0003f1, 0xb, "PHY_VITESSE_VSC8211"},
  93          {PHY_AGERE_ET1011C,   0x00a0bc, 0x1, "PHY_AGERE_ET1011C"},
  94 };
  95
  96
  97 /*
  98  * Caller must take hw_lock.
  99  */
 100 static int ql_sem_spinlock(struct ql3_adapter *qdev,
 101                             u32 sem_mask, u32 sem_bits)
 102 {
 103         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
 104         u32 value;
 105         unsigned int seconds = 3;
 106
 107         do {
 108                 writel((sem_mask | sem_bits),
 109                        &port_regs->CommonRegs.semaphoreReg);
 110                 value = readl(&port_regs->CommonRegs.semaphoreReg);
 111                 if ((value & (sem_mask >> 16)) == sem_bits)
 112                         return 0;
 113                 ssleep(1);
 114         } while(--seconds);
 115         return -1;
 116 }
 117
 118 static void ql_sem_unlock(struct ql3_adapter *qdev, u32 sem_mask)
 119 {
 120         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
 121         writel(sem_mask, &port_regs->CommonRegs.semaphoreReg);
 122         readl(&port_regs->CommonRegs.semaphoreReg);
 123 }
 124
 125 static int ql_sem_lock(struct ql3_adapter *qdev, u32 sem_mask, u32 sem_bits)
 126 {
 127         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
 128         u32 value;
 129
 130         writel((sem_mask | sem_bits), &port_regs->CommonRegs.semaphoreReg);
 131         value = readl(&port_regs->CommonRegs.semaphoreReg);
 132         return ((value & (sem_mask >> 16)) == sem_bits);
 133 }
 134
 135 /*
 136  * Caller holds hw_lock.
 137  */
 138 static int ql_wait_for_drvr_lock(struct ql3_adapter *qdev)
 139 {
 140         int i = 0;
 141
 142         while (1) {
 143                 if (!ql_sem_lock(qdev,
 144                                  QL_DRVR_SEM_MASK,
 145                                  (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index)
 146                                   * 2) << 1)) {
 147                         if (i < 10) {
 148                                 ssleep(1);
 149                                 i++;
 150                         } else {
 151                                 printk(KERN_ERR PFX "%s: Timed out waiting for "
 152                                        "driver lock...\n",
 153                                        qdev->ndev->name);
 154                                 return 0;
 155                         }
 156                 } else {
 157                         printk(KERN_DEBUG PFX
 158                                "%s: driver lock acquired.\n",
 159                                qdev->ndev->name);
 160                         return 1;
 161                 }
 162         }
 163 }
 164
 165 static void ql_set_register_page(struct ql3_adapter *qdev, u32 page)
 166 {
 167         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
 168
 169         writel(((ISP_CONTROL_NP_MASK << 16) | page),
 170                         &port_regs->CommonRegs.ispControlStatus);
 171         readl(&port_regs->CommonRegs.ispControlStatus);
 172         qdev->current_page = page;
 173 }
 174
 175 static u32 ql_read_common_reg_l(struct ql3_adapter *qdev,
 176                               u32 __iomem * reg)
 177 {
 178         u32 value;
 179         unsigned long hw_flags;
 180
 181         spin_lock_irqsave(&qdev->hw_lock, hw_flags);
 182         value = readl(reg);
 183         spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
 184
 185         return value;
 186 }
 187
 188 static u32 ql_read_common_reg(struct ql3_adapter *qdev,
 189                               u32 __iomem * reg)
 190 {
 191         return readl(reg);
 192 }
 193
 194 static u32 ql_read_page0_reg_l(struct ql3_adapter *qdev, u32 __iomem *reg)
 195 {
 196         u32 value;
 197         unsigned long hw_flags;
 198
 199         spin_lock_irqsave(&qdev->hw_lock, hw_flags);
 200
 201         if (qdev->current_page != 0)
 202                 ql_set_register_page(qdev,0);
 203         value = readl(reg);
 204
 205         spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
 206         return value;
 207 }
 208
 209 static u32 ql_read_page0_reg(struct ql3_adapter *qdev, u32 __iomem *reg)
 210 {
 211         if (qdev->current_page != 0)
 212                 ql_set_register_page(qdev,0);
 213         return readl(reg);
 214 }
 215
 216 static void ql_write_common_reg_l(struct ql3_adapter *qdev,
 217                                 u32 __iomem *reg, u32 value)
 218 {
 219         unsigned long hw_flags;
 220
 221         spin_lock_irqsave(&qdev->hw_lock, hw_flags);
 222         writel(value, reg);
 223         readl(reg);
 224         spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
 225         return;
 226 }
 227
 228 static void ql_write_common_reg(struct ql3_adapter *qdev,
 229                                 u32 __iomem *reg, u32 value)
 230 {
 231         writel(value, reg);
 232         readl(reg);
 233         return;
 234 }
 235
 236 static void ql_write_nvram_reg(struct ql3_adapter *qdev,
 237                                 u32 __iomem *reg, u32 value)
 238 {
 239         writel(value, reg);
 240         readl(reg);
 241         udelay(1);
 242         return;
 243 }
 244
 245 static void ql_write_page0_reg(struct ql3_adapter *qdev,
 246                                u32 __iomem *reg, u32 value)
 247 {
 248         if (qdev->current_page != 0)
 249                 ql_set_register_page(qdev,0);
 250         writel(value, reg);
 251         readl(reg);
 252         return;
 253 }
 254
 255 /*
 256  * Caller holds hw_lock. Only called during init.
 257  */
 258 static void ql_write_page1_reg(struct ql3_adapter *qdev,
 259                                u32 __iomem *reg, u32 value)
 260 {
 261         if (qdev->current_page != 1)
 262                 ql_set_register_page(qdev,1);
 263         writel(value, reg);
 264         readl(reg);
 265         return;
 266 }
 267
 268 /*
 269  * Caller holds hw_lock. Only called during init.
 270  */
 271 static void ql_write_page2_reg(struct ql3_adapter *qdev,
 272                                u32 __iomem *reg, u32 value)
 273 {
 274         if (qdev->current_page != 2)
 275                 ql_set_register_page(qdev,2);
 276         writel(value, reg);
 277         readl(reg);
 278         return;
 279 }
 280
 281 static void ql_disable_interrupts(struct ql3_adapter *qdev)
 282 {
 283         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
 284
 285         ql_write_common_reg_l(qdev, &port_regs->CommonRegs.ispInterruptMaskReg,
 286                             (ISP_IMR_ENABLE_INT << 16));
 287
 288 }
 289
 290 static void ql_enable_interrupts(struct ql3_adapter *qdev)
 291 {
 292         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
 293
 294         ql_write_common_reg_l(qdev, &port_regs->CommonRegs.ispInterruptMaskReg,
 295                             ((0xff << 16) | ISP_IMR_ENABLE_INT));
 296
 297 }
 298
 299 static void ql_release_to_lrg_buf_free_list(struct ql3_adapter *qdev,
 300                                             struct ql_rcv_buf_cb *lrg_buf_cb)
 301 {
 302         dma_addr_t map;
 303         int err;
 304         lrg_buf_cb->next = NULL;
 305
 306         if (qdev->lrg_buf_free_tail == NULL) {  /* The list is empty  */
 307                 qdev->lrg_buf_free_head = qdev->lrg_buf_free_tail = lrg_buf_cb;
 308         } else {
 309                 qdev->lrg_buf_free_tail->next = lrg_buf_cb;
 310                 qdev->lrg_buf_free_tail = lrg_buf_cb;
 311         }
 312
 313         if (!lrg_buf_cb->skb) {
 314                 lrg_buf_cb->skb = netdev_alloc_skb(qdev->ndev,
 315                                                    qdev->lrg_buffer_len);
 316                 if (unlikely(!lrg_buf_cb->skb)) {
 317                         printk(KERN_ERR PFX "%s: failed netdev_alloc_skb().\n",
 318                                qdev->ndev->name);
 319                         qdev->lrg_buf_skb_check++;
 320                 } else {
 321                         /*
 322                          * We save some space to copy the ethhdr from first
 323                          * buffer
 324                          */
 325                         skb_reserve(lrg_buf_cb->skb, QL_HEADER_SPACE);
 326                         map = pci_map_single(qdev->pdev,
 327                                              lrg_buf_cb->skb->data,
 328                                              qdev->lrg_buffer_len -
 329                                              QL_HEADER_SPACE,
 330                                              PCI_DMA_FROMDEVICE);
 331                         err = pci_dma_mapping_error(qdev->pdev, map);
 332                         if(err) {
 333                                 printk(KERN_ERR "%s: PCI mapping failed with error: %d\n",
 334                                        qdev->ndev->name, err);
 335                                 dev_kfree_skb(lrg_buf_cb->skb);
 336                                 lrg_buf_cb->skb = NULL;
 337
 338                                 qdev->lrg_buf_skb_check++;
 339                                 return;
 340                         }
 341
 342                         lrg_buf_cb->buf_phy_addr_low =
 343                             cpu_to_le32(LS_64BITS(map));
 344                         lrg_buf_cb->buf_phy_addr_high =
 345                             cpu_to_le32(MS_64BITS(map));
 346                         pci_unmap_addr_set(lrg_buf_cb, mapaddr, map);
 347                         pci_unmap_len_set(lrg_buf_cb, maplen,
 348                                           qdev->lrg_buffer_len -
 349                                           QL_HEADER_SPACE);
 350                 }
 351         }
 352
 353         qdev->lrg_buf_free_count++;
 354 }
 355
 356 static struct ql_rcv_buf_cb *ql_get_from_lrg_buf_free_list(struct ql3_adapter
 357                                                            *qdev)
 358 {
 359         struct ql_rcv_buf_cb *lrg_buf_cb;
 360
 361         if ((lrg_buf_cb = qdev->lrg_buf_free_head) != NULL) {
 362                 if ((qdev->lrg_buf_free_head = lrg_buf_cb->next) == NULL)
 363                         qdev->lrg_buf_free_tail = NULL;
 364                 qdev->lrg_buf_free_count--;
 365         }
 366
 367         return lrg_buf_cb;
 368 }
 369
 370 static u32 addrBits = EEPROM_NO_ADDR_BITS;
 371 static u32 dataBits = EEPROM_NO_DATA_BITS;
 372
 373 static void fm93c56a_deselect(struct ql3_adapter *qdev);
 374 static void eeprom_readword(struct ql3_adapter *qdev, u32 eepromAddr,
 375                             unsigned short *value);
 376
 377 /*
 378  * Caller holds hw_lock.
 379  */
 380 static void fm93c56a_select(struct ql3_adapter *qdev)
 381 {
 382         struct ql3xxx_port_registers __iomem *port_regs =
 383                         qdev->mem_map_registers;
 384
 385         qdev->eeprom_cmd_data = AUBURN_EEPROM_CS_1;
 386         ql_write_nvram_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
 387                             ISP_NVRAM_MASK | qdev->eeprom_cmd_data);
 388         ql_write_nvram_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
 389                             ((ISP_NVRAM_MASK << 16) | qdev->eeprom_cmd_data));
 390 }
 391
 392 /*
 393  * Caller holds hw_lock.
 394  */
 395 static void fm93c56a_cmd(struct ql3_adapter *qdev, u32 cmd, u32 eepromAddr)
 396 {
 397         int i;
 398         u32 mask;
 399         u32 dataBit;
 400         u32 previousBit;
 401         struct ql3xxx_port_registers __iomem *port_regs =
 402                         qdev->mem_map_registers;
 403
 404         /* Clock in a zero, then do the start bit */
 405         ql_write_nvram_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
 406                             ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
 407                             AUBURN_EEPROM_DO_1);
 408         ql_write_nvram_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
 409                             ISP_NVRAM_MASK | qdev->
 410                             eeprom_cmd_data | AUBURN_EEPROM_DO_1 |
 411                             AUBURN_EEPROM_CLK_RISE);
 412         ql_write_nvram_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
 413                             ISP_NVRAM_MASK | qdev->
 414                             eeprom_cmd_data | AUBURN_EEPROM_DO_1 |
 415                             AUBURN_EEPROM_CLK_FALL);
 416
 417         mask = 1 << (FM93C56A_CMD_BITS - 1);
 418         /* Force the previous data bit to be different */
 419         previousBit = 0xffff;
 420         for (i = 0; i < FM93C56A_CMD_BITS; i++) {
 421                 dataBit =
 422                     (cmd & mask) ? AUBURN_EEPROM_DO_1 : AUBURN_EEPROM_DO_0;
 423                 if (previousBit != dataBit) {
 424                         /*
 425                          * If the bit changed, then change the DO state to
 426                          * match
 427                          */
 428                         ql_write_nvram_reg(qdev,
 429                                             &port_regs->CommonRegs.
 430                                             serialPortInterfaceReg,
 431                                             ISP_NVRAM_MASK | qdev->
 432                                             eeprom_cmd_data | dataBit);
 433                         previousBit = dataBit;
 434                 }
 435                 ql_write_nvram_reg(qdev,
 436                                     &port_regs->CommonRegs.
 437                                     serialPortInterfaceReg,
 438                                     ISP_NVRAM_MASK | qdev->
 439                                     eeprom_cmd_data | dataBit |
 440                                     AUBURN_EEPROM_CLK_RISE);
 441                 ql_write_nvram_reg(qdev,
 442                                     &port_regs->CommonRegs.
 443                                     serialPortInterfaceReg,
 444                                     ISP_NVRAM_MASK | qdev->
 445                                     eeprom_cmd_data | dataBit |
 446                                     AUBURN_EEPROM_CLK_FALL);
 447                 cmd = cmd << 1;
 448         }
 449
 450         mask = 1 << (addrBits - 1);
 451         /* Force the previous data bit to be different */
 452         previousBit = 0xffff;
 453         for (i = 0; i < addrBits; i++) {
 454                 dataBit =
 455                     (eepromAddr & mask) ? AUBURN_EEPROM_DO_1 :
 456                     AUBURN_EEPROM_DO_0;
 457                 if (previousBit != dataBit) {
 458                         /*
 459                          * If the bit changed, then change the DO state to
 460                          * match
 461                          */
 462                         ql_write_nvram_reg(qdev,
 463                                             &port_regs->CommonRegs.
 464                                             serialPortInterfaceReg,
 465                                             ISP_NVRAM_MASK | qdev->
 466                                             eeprom_cmd_data | dataBit);
 467                         previousBit = dataBit;
 468                 }
 469                 ql_write_nvram_reg(qdev,
 470                                     &port_regs->CommonRegs.
 471                                     serialPortInterfaceReg,
 472                                     ISP_NVRAM_MASK | qdev->
 473                                     eeprom_cmd_data | dataBit |
 474                                     AUBURN_EEPROM_CLK_RISE);
 475                 ql_write_nvram_reg(qdev,
 476                                     &port_regs->CommonRegs.
 477                                     serialPortInterfaceReg,
 478                                     ISP_NVRAM_MASK | qdev->
 479                                     eeprom_cmd_data | dataBit |
 480                                     AUBURN_EEPROM_CLK_FALL);
 481                 eepromAddr = eepromAddr << 1;
 482         }
 483 }
 484
 485 /*
 486  * Caller holds hw_lock.
 487  */
 488 static void fm93c56a_deselect(struct ql3_adapter *qdev)
 489 {
 490         struct ql3xxx_port_registers __iomem *port_regs =
 491                         qdev->mem_map_registers;
 492         qdev->eeprom_cmd_data = AUBURN_EEPROM_CS_0;
 493         ql_write_nvram_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
 494                             ISP_NVRAM_MASK | qdev->eeprom_cmd_data);
 495 }
 496
 497 /*
 498  * Caller holds hw_lock.
 499  */
 500 static void fm93c56a_datain(struct ql3_adapter *qdev, unsigned short *value)
 501 {
 502         int i;
 503         u32 data = 0;
 504         u32 dataBit;
 505         struct ql3xxx_port_registers __iomem *port_regs =
 506                         qdev->mem_map_registers;
 507
 508         /* Read the data bits */
 509         /* The first bit is a dummy.  Clock right over it. */
 510         for (i = 0; i < dataBits; i++) {
 511                 ql_write_nvram_reg(qdev,
 512                                     &port_regs->CommonRegs.
 513                                     serialPortInterfaceReg,
 514                                     ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
 515                                     AUBURN_EEPROM_CLK_RISE);
 516                 ql_write_nvram_reg(qdev,
 517                                     &port_regs->CommonRegs.
 518                                     serialPortInterfaceReg,
 519                                     ISP_NVRAM_MASK | qdev->eeprom_cmd_data |
 520                                     AUBURN_EEPROM_CLK_FALL);
 521                 dataBit =
 522                     (ql_read_common_reg
 523                      (qdev,
 524                       &port_regs->CommonRegs.
 525                       serialPortInterfaceReg) & AUBURN_EEPROM_DI_1) ? 1 : 0;
 526                 data = (data << 1) | dataBit;
 527         }
 528         *value = (u16) data;
 529 }
 530
 531 /*
 532  * Caller holds hw_lock.
 533  */
 534 static void eeprom_readword(struct ql3_adapter *qdev,
 535                             u32 eepromAddr, unsigned short *value)
 536 {
 537         fm93c56a_select(qdev);
 538         fm93c56a_cmd(qdev, (int)FM93C56A_READ, eepromAddr);
 539         fm93c56a_datain(qdev, value);
 540         fm93c56a_deselect(qdev);
 541 }
 542
 543 static void ql_set_mac_addr(struct net_device *ndev, u16 *addr)
 544 {
 545         __le16 *p = (__le16 *)ndev->dev_addr;
 546         p[0] = cpu_to_le16(addr[0]);
 547         p[1] = cpu_to_le16(addr[1]);
 548         p[2] = cpu_to_le16(addr[2]);
 549 }
 550
 551 static int ql_get_nvram_params(struct ql3_adapter *qdev)
 552 {
 553         u16 *pEEPROMData;
 554         u16 checksum = 0;
 555         u32 index;
 556         unsigned long hw_flags;
 557
 558         spin_lock_irqsave(&qdev->hw_lock, hw_flags);
 559
 560         pEEPROMData = (u16 *) & qdev->nvram_data;
 561         qdev->eeprom_cmd_data = 0;
 562         if(ql_sem_spinlock(qdev, QL_NVRAM_SEM_MASK,
 563                         (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
 564                          2) << 10)) {
 565                 printk(KERN_ERR PFX"%s: Failed ql_sem_spinlock().\n",
 566                         __func__);
 567                 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
 568                 return -1;
 569         }
 570
 571         for (index = 0; index < EEPROM_SIZE; index++) {
 572                 eeprom_readword(qdev, index, pEEPROMData);
 573                 checksum += *pEEPROMData;
 574                 pEEPROMData++;
 575         }
 576         ql_sem_unlock(qdev, QL_NVRAM_SEM_MASK);
 577
 578         if (checksum != 0) {
 579                 printk(KERN_ERR PFX "%s: checksum should be zero, is %x!!\n",
 580                        qdev->ndev->name, checksum);
 581                 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
 582                 return -1;
 583         }
 584
 585         spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
 586         return checksum;
 587 }
 588
 589 static const u32 PHYAddr[2] = {
 590         PORT0_PHY_ADDRESS, PORT1_PHY_ADDRESS
 591 };
 592
 593 static int ql_wait_for_mii_ready(struct ql3_adapter *qdev)
 594 {
 595         struct ql3xxx_port_registers __iomem *port_regs =
 596                         qdev->mem_map_registers;
 597         u32 temp;
 598         int count = 1000;
 599
 600         while (count) {
 601                 temp = ql_read_page0_reg(qdev, &port_regs->macMIIStatusReg);
 602                 if (!(temp & MAC_MII_STATUS_BSY))
 603                         return 0;
 604                 udelay(10);
 605                 count--;
 606         }
 607         return -1;
 608 }
 609
 610 static void ql_mii_enable_scan_mode(struct ql3_adapter *qdev)
 611 {
 612         struct ql3xxx_port_registers __iomem *port_regs =
 613                         qdev->mem_map_registers;
 614         u32 scanControl;
 615
 616         if (qdev->numPorts > 1) {
 617                 /* Auto scan will cycle through multiple ports */
 618                 scanControl = MAC_MII_CONTROL_AS | MAC_MII_CONTROL_SC;
 619         } else {
 620                 scanControl = MAC_MII_CONTROL_SC;
 621         }
 622
 623         /*
 624          * Scan register 1 of PHY/PETBI,
 625          * Set up to scan both devices
 626          * The autoscan starts from the first register, completes
 627          * the last one before rolling over to the first
 628          */
 629         ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
 630                            PHYAddr[0] | MII_SCAN_REGISTER);
 631
 632         ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
 633                            (scanControl) |
 634                            ((MAC_MII_CONTROL_SC | MAC_MII_CONTROL_AS) << 16));
 635 }
 636
 637 static u8 ql_mii_disable_scan_mode(struct ql3_adapter *qdev)
 638 {
 639         u8 ret;
 640         struct ql3xxx_port_registers __iomem *port_regs =
 641                                         qdev->mem_map_registers;
 642
 643         /* See if scan mode is enabled before we turn it off */
 644         if (ql_read_page0_reg(qdev, &port_regs->macMIIMgmtControlReg) &
 645             (MAC_MII_CONTROL_AS | MAC_MII_CONTROL_SC)) {
 646                 /* Scan is enabled */
 647                 ret = 1;
 648         } else {
 649                 /* Scan is disabled */
 650                 ret = 0;
 651         }
 652
 653         /*
 654          * When disabling scan mode you must first change the MII register
 655          * address
 656          */
 657         ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
 658                            PHYAddr[0] | MII_SCAN_REGISTER);
 659
 660         ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
 661                            ((MAC_MII_CONTROL_SC | MAC_MII_CONTROL_AS |
 662                              MAC_MII_CONTROL_RC) << 16));
 663
 664         return ret;
 665 }
 666
 667 static int ql_mii_write_reg_ex(struct ql3_adapter *qdev,
 668                                u16 regAddr, u16 value, u32 phyAddr)
 669 {
 670         struct ql3xxx_port_registers __iomem *port_regs =
 671                         qdev->mem_map_registers;
 672         u8 scanWasEnabled;
 673
 674         scanWasEnabled = ql_mii_disable_scan_mode(qdev);
 675
 676         if (ql_wait_for_mii_ready(qdev)) {
 677                 if (netif_msg_link(qdev))
 678                         printk(KERN_WARNING PFX
 679                                "%s Timed out waiting for management port to "
 680                                "get free before issuing command.\n",
 681                                qdev->ndev->name);
 682                 return -1;
 683         }
 684
 685         ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
 686                            phyAddr | regAddr);
 687
 688         ql_write_page0_reg(qdev, &port_regs->macMIIMgmtDataReg, value);
 689
 690         /* Wait for write to complete 9/10/04 SJP */
 691         if (ql_wait_for_mii_ready(qdev)) {
 692                 if (netif_msg_link(qdev))
 693                         printk(KERN_WARNING PFX
 694                                "%s: Timed out waiting for management port to "
 695                                "get free before issuing command.\n",
 696                                qdev->ndev->name);
 697                 return -1;
 698         }
 699
 700         if (scanWasEnabled)
 701                 ql_mii_enable_scan_mode(qdev);
 702
 703         return 0;
 704 }
 705
 706 static int ql_mii_read_reg_ex(struct ql3_adapter *qdev, u16 regAddr,
 707                               u16 * value, u32 phyAddr)
 708 {
 709         struct ql3xxx_port_registers __iomem *port_regs =
 710                         qdev->mem_map_registers;
 711         u8 scanWasEnabled;
 712         u32 temp;
 713
 714         scanWasEnabled = ql_mii_disable_scan_mode(qdev);
 715
 716         if (ql_wait_for_mii_ready(qdev)) {
 717                 if (netif_msg_link(qdev))
 718                         printk(KERN_WARNING PFX
 719                                "%s: Timed out waiting for management port to "
 720                                "get free before issuing command.\n",
 721                                qdev->ndev->name);
 722                 return -1;
 723         }
 724
 725         ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
 726                            phyAddr | regAddr);
 727
 728         ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
 729                            (MAC_MII_CONTROL_RC << 16));
 730
 731         ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
 732                            (MAC_MII_CONTROL_RC << 16) | MAC_MII_CONTROL_RC);
 733
 734         /* Wait for the read to complete */
 735         if (ql_wait_for_mii_ready(qdev)) {
 736                 if (netif_msg_link(qdev))
 737                         printk(KERN_WARNING PFX
 738                                "%s: Timed out waiting for management port to "
 739                                "get free after issuing command.\n",
 740                                qdev->ndev->name);
 741                 return -1;
 742         }
 743
 744         temp = ql_read_page0_reg(qdev, &port_regs->macMIIMgmtDataReg);
 745         *value = (u16) temp;
 746
 747         if (scanWasEnabled)
 748                 ql_mii_enable_scan_mode(qdev);
 749
 750         return 0;
 751 }
 752
 753 static int ql_mii_write_reg(struct ql3_adapter *qdev, u16 regAddr, u16 value)
 754 {
 755         struct ql3xxx_port_registers __iomem *port_regs =
 756                         qdev->mem_map_registers;
 757
 758         ql_mii_disable_scan_mode(qdev);
 759
 760         if (ql_wait_for_mii_ready(qdev)) {
 761                 if (netif_msg_link(qdev))
 762                         printk(KERN_WARNING PFX
 763                                "%s: Timed out waiting for management port to "
 764                                "get free before issuing command.\n",
 765                                qdev->ndev->name);
 766                 return -1;
 767         }
 768
 769         ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
 770                            qdev->PHYAddr | regAddr);
 771
 772         ql_write_page0_reg(qdev, &port_regs->macMIIMgmtDataReg, value);
 773
 774         /* Wait for write to complete. */
 775         if (ql_wait_for_mii_ready(qdev)) {
 776                 if (netif_msg_link(qdev))
 777                         printk(KERN_WARNING PFX
 778                                "%s: Timed out waiting for management port to "
 779                                "get free before issuing command.\n",
 780                                qdev->ndev->name);
 781                 return -1;
 782         }
 783
 784         ql_mii_enable_scan_mode(qdev);
 785
 786         return 0;
 787 }
 788
 789 static int ql_mii_read_reg(struct ql3_adapter *qdev, u16 regAddr, u16 *value)
 790 {
 791         u32 temp;
 792         struct ql3xxx_port_registers __iomem *port_regs =
 793                         qdev->mem_map_registers;
 794
 795         ql_mii_disable_scan_mode(qdev);
 796
 797         if (ql_wait_for_mii_ready(qdev)) {
 798                 if (netif_msg_link(qdev))
 799                         printk(KERN_WARNING PFX
 800                                "%s: Timed out waiting for management port to "
 801                                "get free before issuing command.\n",
 802                                qdev->ndev->name);
 803                 return -1;
 804         }
 805
 806         ql_write_page0_reg(qdev, &port_regs->macMIIMgmtAddrReg,
 807                            qdev->PHYAddr | regAddr);
 808
 809         ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
 810                            (MAC_MII_CONTROL_RC << 16));
 811
 812         ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
 813                            (MAC_MII_CONTROL_RC << 16) | MAC_MII_CONTROL_RC);
 814
 815         /* Wait for the read to complete */
 816         if (ql_wait_for_mii_ready(qdev)) {
 817                 if (netif_msg_link(qdev))
 818                         printk(KERN_WARNING PFX
 819                                "%s: Timed out waiting for management port to "
 820                                "get free before issuing command.\n",
 821                                qdev->ndev->name);
 822                 return -1;
 823         }
 824
 825         temp = ql_read_page0_reg(qdev, &port_regs->macMIIMgmtDataReg);
 826         *value = (u16) temp;
 827
 828         ql_mii_enable_scan_mode(qdev);
 829
 830         return 0;
 831 }
 832
 833 static void ql_petbi_reset(struct ql3_adapter *qdev)
 834 {
 835         ql_mii_write_reg(qdev, PETBI_CONTROL_REG, PETBI_CTRL_SOFT_RESET);
 836 }
 837
 838 static void ql_petbi_start_neg(struct ql3_adapter *qdev)
 839 {
 840         u16 reg;
 841
 842         /* Enable Auto-negotiation sense */
 843         ql_mii_read_reg(qdev, PETBI_TBI_CTRL, &reg);
 844         reg |= PETBI_TBI_AUTO_SENSE;
 845         ql_mii_write_reg(qdev, PETBI_TBI_CTRL, reg);
 846
 847         ql_mii_write_reg(qdev, PETBI_NEG_ADVER,
 848                          PETBI_NEG_PAUSE | PETBI_NEG_DUPLEX);
 849
 850         ql_mii_write_reg(qdev, PETBI_CONTROL_REG,
 851                          PETBI_CTRL_AUTO_NEG | PETBI_CTRL_RESTART_NEG |
 852                          PETBI_CTRL_FULL_DUPLEX | PETBI_CTRL_SPEED_1000);
 853
 854 }
 855
 856 static void ql_petbi_reset_ex(struct ql3_adapter *qdev)
 857 {
 858         ql_mii_write_reg_ex(qdev, PETBI_CONTROL_REG, PETBI_CTRL_SOFT_RESET,
 859                             PHYAddr[qdev->mac_index]);
 860 }
 861
 862 static void ql_petbi_start_neg_ex(struct ql3_adapter *qdev)
 863 {
 864         u16 reg;
 865
 866         /* Enable Auto-negotiation sense */
 867         ql_mii_read_reg_ex(qdev, PETBI_TBI_CTRL, &reg,
 868                            PHYAddr[qdev->mac_index]);
 869         reg |= PETBI_TBI_AUTO_SENSE;
 870         ql_mii_write_reg_ex(qdev, PETBI_TBI_CTRL, reg,
 871                             PHYAddr[qdev->mac_index]);
 872
 873         ql_mii_write_reg_ex(qdev, PETBI_NEG_ADVER,
 874                             PETBI_NEG_PAUSE | PETBI_NEG_DUPLEX,
 875                             PHYAddr[qdev->mac_index]);
 876
 877         ql_mii_write_reg_ex(qdev, PETBI_CONTROL_REG,
 878                             PETBI_CTRL_AUTO_NEG | PETBI_CTRL_RESTART_NEG |
 879                             PETBI_CTRL_FULL_DUPLEX | PETBI_CTRL_SPEED_1000,
 880                             PHYAddr[qdev->mac_index]);
 881 }
 882
 883 static void ql_petbi_init(struct ql3_adapter *qdev)
 884 {
 885         ql_petbi_reset(qdev);
 886         ql_petbi_start_neg(qdev);
 887 }
 888
 889 static void ql_petbi_init_ex(struct ql3_adapter *qdev)
 890 {
 891         ql_petbi_reset_ex(qdev);
 892         ql_petbi_start_neg_ex(qdev);
 893 }
 894
 895 static int ql_is_petbi_neg_pause(struct ql3_adapter *qdev)
 896 {
 897         u16 reg;
 898
 899         if (ql_mii_read_reg(qdev, PETBI_NEG_PARTNER, &reg) < 0)
 900                 return 0;
 901
 902         return (reg & PETBI_NEG_PAUSE_MASK) == PETBI_NEG_PAUSE;
 903 }
 904
 905 static void phyAgereSpecificInit(struct ql3_adapter *qdev, u32 miiAddr)
 906 {
 907         printk(KERN_INFO "%s: enabling Agere specific PHY\n", qdev->ndev->name);
 908         /* power down device bit 11 = 1 */
 909         ql_mii_write_reg_ex(qdev, 0x00, 0x1940, miiAddr);
 910         /* enable diagnostic mode bit 2 = 1 */
 911         ql_mii_write_reg_ex(qdev, 0x12, 0x840e, miiAddr);
 912         /* 1000MB amplitude adjust (see Agere errata) */
 913         ql_mii_write_reg_ex(qdev, 0x10, 0x8805, miiAddr);
 914         /* 1000MB amplitude adjust (see Agere errata) */
 915         ql_mii_write_reg_ex(qdev, 0x11, 0xf03e, miiAddr);
 916         /* 100MB amplitude adjust (see Agere errata) */
 917         ql_mii_write_reg_ex(qdev, 0x10, 0x8806, miiAddr);
 918         /* 100MB amplitude adjust (see Agere errata) */
 919         ql_mii_write_reg_ex(qdev, 0x11, 0x003e, miiAddr);
 920         /* 10MB amplitude adjust (see Agere errata) */
 921         ql_mii_write_reg_ex(qdev, 0x10, 0x8807, miiAddr);
 922         /* 10MB amplitude adjust (see Agere errata) */
 923         ql_mii_write_reg_ex(qdev, 0x11, 0x1f00, miiAddr);
 924         /* point to hidden reg 0x2806 */
 925         ql_mii_write_reg_ex(qdev, 0x10, 0x2806, miiAddr);
 926         /* Write new PHYAD w/bit 5 set */
 927         ql_mii_write_reg_ex(qdev, 0x11, 0x0020 | (PHYAddr[qdev->mac_index] >> 8), miiAddr);
 928         /*
 929          * Disable diagnostic mode bit 2 = 0
 930          * Power up device bit 11 = 0
 931          * Link up (on) and activity (blink)
 932          */
 933         ql_mii_write_reg(qdev, 0x12, 0x840a);
 934         ql_mii_write_reg(qdev, 0x00, 0x1140);
 935         ql_mii_write_reg(qdev, 0x1c, 0xfaf0);
 936 }
 937
 938 static PHY_DEVICE_et getPhyType (struct ql3_adapter *qdev,
 939                                  u16 phyIdReg0, u16 phyIdReg1)
 940 {
 941         PHY_DEVICE_et result = PHY_TYPE_UNKNOWN;
 942         u32   oui;
 943         u16   model;
 944         int i;
 945
 946         if (phyIdReg0 == 0xffff) {
 947                 return result;
 948         }
 949
 950         if (phyIdReg1 == 0xffff) {
 951                 return result;
 952         }
 953
 954         /* oui is split between two registers */
 955         oui = (phyIdReg0 << 6) | ((phyIdReg1 & PHY_OUI_1_MASK) >> 10);
 956
 957         model = (phyIdReg1 & PHY_MODEL_MASK) >> 4;
 958
 959         /* Scan table for this PHY */
 960         for(i = 0; i < MAX_PHY_DEV_TYPES; i++) {
 961                 if ((oui == PHY_DEVICES[i].phyIdOUI) && (model == PHY_DEVICES[i].phyIdModel))
 962                 {
 963                         result = PHY_DEVICES[i].phyDevice;
 964
 965                         printk(KERN_INFO "%s: Phy: %s\n",
 966                                 qdev->ndev->name, PHY_DEVICES[i].name);
 967
 968                         break;
 969                 }
 970         }
 971
 972         return result;
 973 }
 974
 975 static int ql_phy_get_speed(struct ql3_adapter *qdev)
 976 {
 977         u16 reg;
 978
 979         switch(qdev->phyType) {
 980         case PHY_AGERE_ET1011C:
 981         {
 982                 if (ql_mii_read_reg(qdev, 0x1A, &reg) < 0)
 983                         return 0;
 984
 985                 reg = (reg >> 8) & 3;
 986                 break;
 987         }
 988         default:
 989         if (ql_mii_read_reg(qdev, AUX_CONTROL_STATUS, &reg) < 0)
 990                 return 0;
 991
 992         reg = (((reg & 0x18) >> 3) & 3);
 993         }
 994
 995         switch(reg) {
 996                 case 2:
 997                 return SPEED_1000;
 998                 case 1:
 999                 return SPEED_100;
1000                 case 0:
1001                 return SPEED_10;
1002                 default:
1003                 return -1;
1004         }
1005 }
1006
1007 static int ql_is_full_dup(struct ql3_adapter *qdev)
1008 {
1009         u16 reg;
1010
1011         switch(qdev->phyType) {
1012         case PHY_AGERE_ET1011C:
1013         {
1014                 if (ql_mii_read_reg(qdev, 0x1A, &reg))
1015                         return 0;
1016
1017                 return ((reg & 0x0080) && (reg & 0x1000)) != 0;
1018         }
1019         case PHY_VITESSE_VSC8211:
1020         default:
1021         {
1022                 if (ql_mii_read_reg(qdev, AUX_CONTROL_STATUS, &reg) < 0)
1023                         return 0;
1024                 return (reg & PHY_AUX_DUPLEX_STAT) != 0;
1025         }
1026         }
1027 }
1028
1029 static int ql_is_phy_neg_pause(struct ql3_adapter *qdev)
1030 {
1031         u16 reg;
1032
1033         if (ql_mii_read_reg(qdev, PHY_NEG_PARTNER, &reg) < 0)
1034                 return 0;
1035
1036         return (reg & PHY_NEG_PAUSE) != 0;
1037 }
1038
1039 static int PHY_Setup(struct ql3_adapter *qdev)
1040 {
1041         u16   reg1;
1042         u16   reg2;
1043         bool  agereAddrChangeNeeded = false;
1044         u32 miiAddr = 0;
1045         int err;
1046
1047         /*  Determine the PHY we are using by reading the ID's */
1048         err = ql_mii_read_reg(qdev, PHY_ID_0_REG, &reg1);
1049         if(err != 0) {
1050                 printk(KERN_ERR "%s: Could not read from reg PHY_ID_0_REG\n",
1051                        qdev->ndev->name);
1052                 return err;
1053         }
1054
1055         err = ql_mii_read_reg(qdev, PHY_ID_1_REG, &reg2);
1056         if(err != 0) {
1057                 printk(KERN_ERR "%s: Could not read from reg PHY_ID_0_REG\n",
1058                        qdev->ndev->name);
1059                 return err;
1060         }
1061
1062         /*  Check if we have a Agere PHY */
1063         if ((reg1 == 0xffff) || (reg2 == 0xffff)) {
1064
1065                 /* Determine which MII address we should be using
1066                    determined by the index of the card */
1067                 if (qdev->mac_index == 0) {
1068                         miiAddr = MII_AGERE_ADDR_1;
1069                 } else {
1070                         miiAddr = MII_AGERE_ADDR_2;
1071                 }
1072
1073                 err =ql_mii_read_reg_ex(qdev, PHY_ID_0_REG, &reg1, miiAddr);
1074                 if(err != 0) {
1075                         printk(KERN_ERR "%s: Could not read from reg PHY_ID_0_REG after Agere detected\n",
1076                                qdev->ndev->name);
1077                         return err;
1078                 }
1079
1080                 err = ql_mii_read_reg_ex(qdev, PHY_ID_1_REG, &reg2, miiAddr);
1081                 if(err != 0) {
1082                         printk(KERN_ERR "%s: Could not read from reg PHY_ID_0_REG after Agere detected\n",
1083                                qdev->ndev->name);
1084                         return err;
1085                 }
1086
1087                 /*  We need to remember to initialize the Agere PHY */
1088                 agereAddrChangeNeeded = true;
1089         }
1090
1091         /*  Determine the particular PHY we have on board to apply
1092             PHY specific initializations */
1093         qdev->phyType = getPhyType(qdev, reg1, reg2);
1094
1095         if ((qdev->phyType == PHY_AGERE_ET1011C) && agereAddrChangeNeeded) {
1096                 /* need this here so address gets changed */
1097                 phyAgereSpecificInit(qdev, miiAddr);
1098         } else if (qdev->phyType == PHY_TYPE_UNKNOWN) {
1099                 printk(KERN_ERR "%s: PHY is unknown\n", qdev->ndev->name);
1100                 return -EIO;
1101         }
1102
1103         return 0;
1104 }
1105
1106 /*
1107  * Caller holds hw_lock.
1108  */
1109 static void ql_mac_enable(struct ql3_adapter *qdev, u32 enable)
1110 {
1111         struct ql3xxx_port_registers __iomem *port_regs =
1112                         qdev->mem_map_registers;
1113         u32 value;
1114
1115         if (enable)
1116                 value = (MAC_CONFIG_REG_PE | (MAC_CONFIG_REG_PE << 16));
1117         else
1118                 value = (MAC_CONFIG_REG_PE << 16);
1119
1120         if (qdev->mac_index)
1121                 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1122         else
1123                 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1124 }
1125
1126 /*
1127  * Caller holds hw_lock.
1128  */
1129 static void ql_mac_cfg_soft_reset(struct ql3_adapter *qdev, u32 enable)
1130 {
1131         struct ql3xxx_port_registers __iomem *port_regs =
1132                         qdev->mem_map_registers;
1133         u32 value;
1134
1135         if (enable)
1136                 value = (MAC_CONFIG_REG_SR | (MAC_CONFIG_REG_SR << 16));
1137         else
1138                 value = (MAC_CONFIG_REG_SR << 16);
1139
1140         if (qdev->mac_index)
1141                 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1142         else
1143                 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1144 }
1145
1146 /*
1147  * Caller holds hw_lock.
1148  */
1149 static void ql_mac_cfg_gig(struct ql3_adapter *qdev, u32 enable)
1150 {
1151         struct ql3xxx_port_registers __iomem *port_regs =
1152                         qdev->mem_map_registers;
1153         u32 value;
1154
1155         if (enable)
1156                 value = (MAC_CONFIG_REG_GM | (MAC_CONFIG_REG_GM << 16));
1157         else
1158                 value = (MAC_CONFIG_REG_GM << 16);
1159
1160         if (qdev->mac_index)
1161                 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1162         else
1163                 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1164 }
1165
1166 /*
1167  * Caller holds hw_lock.
1168  */
1169 static void ql_mac_cfg_full_dup(struct ql3_adapter *qdev, u32 enable)
1170 {
1171         struct ql3xxx_port_registers __iomem *port_regs =
1172                         qdev->mem_map_registers;
1173         u32 value;
1174
1175         if (enable)
1176                 value = (MAC_CONFIG_REG_FD | (MAC_CONFIG_REG_FD << 16));
1177         else
1178                 value = (MAC_CONFIG_REG_FD << 16);
1179
1180         if (qdev->mac_index)
1181                 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1182         else
1183                 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1184 }
1185
1186 /*
1187  * Caller holds hw_lock.
1188  */
1189 static void ql_mac_cfg_pause(struct ql3_adapter *qdev, u32 enable)
1190 {
1191         struct ql3xxx_port_registers __iomem *port_regs =
1192                         qdev->mem_map_registers;
1193         u32 value;
1194
1195         if (enable)
1196                 value =
1197                     ((MAC_CONFIG_REG_TF | MAC_CONFIG_REG_RF) |
1198                      ((MAC_CONFIG_REG_TF | MAC_CONFIG_REG_RF) << 16));
1199         else
1200                 value = ((MAC_CONFIG_REG_TF | MAC_CONFIG_REG_RF) << 16);
1201
1202         if (qdev->mac_index)
1203                 ql_write_page0_reg(qdev, &port_regs->mac1ConfigReg, value);
1204         else
1205                 ql_write_page0_reg(qdev, &port_regs->mac0ConfigReg, value);
1206 }
1207
1208 /*
1209  * Caller holds hw_lock.
1210  */
1211 static int ql_is_fiber(struct ql3_adapter *qdev)
1212 {
1213         struct ql3xxx_port_registers __iomem *port_regs =
1214                         qdev->mem_map_registers;
1215         u32 bitToCheck = 0;
1216         u32 temp;
1217
1218         switch (qdev->mac_index) {
1219         case 0:
1220                 bitToCheck = PORT_STATUS_SM0;
1221                 break;
1222         case 1:
1223                 bitToCheck = PORT_STATUS_SM1;
1224                 break;
1225         }
1226
1227         temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1228         return (temp & bitToCheck) != 0;
1229 }
1230
1231 static int ql_is_auto_cfg(struct ql3_adapter *qdev)
1232 {
1233         u16 reg;
1234         ql_mii_read_reg(qdev, 0x00, &reg);
1235         return (reg & 0x1000) != 0;
1236 }
1237
1238 /*
1239  * Caller holds hw_lock.
1240  */
1241 static int ql_is_auto_neg_complete(struct ql3_adapter *qdev)
1242 {
1243         struct ql3xxx_port_registers __iomem *port_regs =
1244                         qdev->mem_map_registers;
1245         u32 bitToCheck = 0;
1246         u32 temp;
1247
1248         switch (qdev->mac_index) {
1249         case 0:
1250                 bitToCheck = PORT_STATUS_AC0;
1251                 break;
1252         case 1:
1253                 bitToCheck = PORT_STATUS_AC1;
1254                 break;
1255         }
1256
1257         temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1258         if (temp & bitToCheck) {
1259                 if (netif_msg_link(qdev))
1260                         printk(KERN_INFO PFX
1261                                "%s: Auto-Negotiate complete.\n",
1262                                qdev->ndev->name);
1263                 return 1;
1264         } else {
1265                 if (netif_msg_link(qdev))
1266                         printk(KERN_WARNING PFX
1267                                "%s: Auto-Negotiate incomplete.\n",
1268                                qdev->ndev->name);
1269                 return 0;
1270         }
1271 }
1272
1273 /*
1274  *  ql_is_neg_pause() returns 1 if pause was negotiated to be on
1275  */
1276 static int ql_is_neg_pause(struct ql3_adapter *qdev)
1277 {
1278         if (ql_is_fiber(qdev))
1279                 return ql_is_petbi_neg_pause(qdev);
1280         else
1281                 return ql_is_phy_neg_pause(qdev);
1282 }
1283
1284 static int ql_auto_neg_error(struct ql3_adapter *qdev)
1285 {
1286         struct ql3xxx_port_registers __iomem *port_regs =
1287                         qdev->mem_map_registers;
1288         u32 bitToCheck = 0;
1289         u32 temp;
1290
1291         switch (qdev->mac_index) {
1292         case 0:
1293                 bitToCheck = PORT_STATUS_AE0;
1294                 break;
1295         case 1:
1296                 bitToCheck = PORT_STATUS_AE1;
1297                 break;
1298         }
1299         temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1300         return (temp & bitToCheck) != 0;
1301 }
1302
1303 static u32 ql_get_link_speed(struct ql3_adapter *qdev)
1304 {
1305         if (ql_is_fiber(qdev))
1306                 return SPEED_1000;
1307         else
1308                 return ql_phy_get_speed(qdev);
1309 }
1310
1311 static int ql_is_link_full_dup(struct ql3_adapter *qdev)
1312 {
1313         if (ql_is_fiber(qdev))
1314                 return 1;
1315         else
1316                 return ql_is_full_dup(qdev);
1317 }
1318
1319 /*
1320  * Caller holds hw_lock.
1321  */
1322 static int ql_link_down_detect(struct ql3_adapter *qdev)
1323 {
1324         struct ql3xxx_port_registers __iomem *port_regs =
1325                         qdev->mem_map_registers;
1326         u32 bitToCheck = 0;
1327         u32 temp;
1328
1329         switch (qdev->mac_index) {
1330         case 0:
1331                 bitToCheck = ISP_CONTROL_LINK_DN_0;
1332                 break;
1333         case 1:
1334                 bitToCheck = ISP_CONTROL_LINK_DN_1;
1335                 break;
1336         }
1337
1338         temp =
1339             ql_read_common_reg(qdev, &port_regs->CommonRegs.ispControlStatus);
1340         return (temp & bitToCheck) != 0;
1341 }
1342
1343 /*
1344  * Caller holds hw_lock.
1345  */
1346 static int ql_link_down_detect_clear(struct ql3_adapter *qdev)
1347 {
1348         struct ql3xxx_port_registers __iomem *port_regs =
1349                         qdev->mem_map_registers;
1350
1351         switch (qdev->mac_index) {
1352         case 0:
1353                 ql_write_common_reg(qdev,
1354                                     &port_regs->CommonRegs.ispControlStatus,
1355                                     (ISP_CONTROL_LINK_DN_0) |
1356                                     (ISP_CONTROL_LINK_DN_0 << 16));
1357                 break;
1358
1359         case 1:
1360                 ql_write_common_reg(qdev,
1361                                     &port_regs->CommonRegs.ispControlStatus,
1362                                     (ISP_CONTROL_LINK_DN_1) |
1363                                     (ISP_CONTROL_LINK_DN_1 << 16));
1364                 break;
1365
1366         default:
1367                 return 1;
1368         }
1369
1370         return 0;
1371 }
1372
1373 /*
1374  * Caller holds hw_lock.
1375  */
1376 static int ql_this_adapter_controls_port(struct ql3_adapter *qdev)
1377 {
1378         struct ql3xxx_port_registers __iomem *port_regs =
1379                         qdev->mem_map_registers;
1380         u32 bitToCheck = 0;
1381         u32 temp;
1382
1383         switch (qdev->mac_index) {
1384         case 0:
1385                 bitToCheck = PORT_STATUS_F1_ENABLED;
1386                 break;
1387         case 1:
1388                 bitToCheck = PORT_STATUS_F3_ENABLED;
1389                 break;
1390         default:
1391                 break;
1392         }
1393
1394         temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1395         if (temp & bitToCheck) {
1396                 if (netif_msg_link(qdev))
1397                         printk(KERN_DEBUG PFX
1398                                "%s: is not link master.\n", qdev->ndev->name);
1399                 return 0;
1400         } else {
1401                 if (netif_msg_link(qdev))
1402                         printk(KERN_DEBUG PFX
1403                                "%s: is link master.\n", qdev->ndev->name);
1404                 return 1;
1405         }
1406 }
1407
1408 static void ql_phy_reset_ex(struct ql3_adapter *qdev)
1409 {
1410         ql_mii_write_reg_ex(qdev, CONTROL_REG, PHY_CTRL_SOFT_RESET,
1411                             PHYAddr[qdev->mac_index]);
1412 }
1413
1414 static void ql_phy_start_neg_ex(struct ql3_adapter *qdev)
1415 {
1416         u16 reg;
1417         u16 portConfiguration;
1418
1419         if(qdev->phyType == PHY_AGERE_ET1011C) {
1420                 /* turn off external loopback */
1421                 ql_mii_write_reg(qdev, 0x13, 0x0000);
1422         }
1423
1424         if(qdev->mac_index == 0)
1425                 portConfiguration = qdev->nvram_data.macCfg_port0.portConfiguration;
1426         else
1427                 portConfiguration = qdev->nvram_data.macCfg_port1.portConfiguration;
1428
1429         /*  Some HBA's in the field are set to 0 and they need to
1430             be reinterpreted with a default value */
1431         if(portConfiguration == 0)
1432                 portConfiguration = PORT_CONFIG_DEFAULT;
1433
1434         /* Set the 1000 advertisements */
1435         ql_mii_read_reg_ex(qdev, PHY_GIG_CONTROL, &reg,
1436                            PHYAddr[qdev->mac_index]);
1437         reg &= ~PHY_GIG_ALL_PARAMS;
1438
1439         if(portConfiguration & PORT_CONFIG_1000MB_SPEED) {
1440                 if(portConfiguration & PORT_CONFIG_FULL_DUPLEX_ENABLED)
1441                         reg |= PHY_GIG_ADV_1000F;
1442                 else
1443                         reg |= PHY_GIG_ADV_1000H;
1444         }
1445
1446         ql_mii_write_reg_ex(qdev, PHY_GIG_CONTROL, reg,
1447                             PHYAddr[qdev->mac_index]);
1448
1449         /* Set the 10/100 & pause negotiation advertisements */
1450         ql_mii_read_reg_ex(qdev, PHY_NEG_ADVER, &reg,
1451                            PHYAddr[qdev->mac_index]);
1452         reg &= ~PHY_NEG_ALL_PARAMS;
1453
1454         if(portConfiguration & PORT_CONFIG_SYM_PAUSE_ENABLED)
1455                 reg |= PHY_NEG_ASY_PAUSE | PHY_NEG_SYM_PAUSE;
1456
1457         if(portConfiguration & PORT_CONFIG_FULL_DUPLEX_ENABLED) {
1458                 if(portConfiguration & PORT_CONFIG_100MB_SPEED)
1459                         reg |= PHY_NEG_ADV_100F;
1460
1461                 if(portConfiguration & PORT_CONFIG_10MB_SPEED)
1462                         reg |= PHY_NEG_ADV_10F;
1463         }
1464
1465         if(portConfiguration & PORT_CONFIG_HALF_DUPLEX_ENABLED) {
1466                 if(portConfiguration & PORT_CONFIG_100MB_SPEED)
1467                         reg |= PHY_NEG_ADV_100H;
1468
1469                 if(portConfiguration & PORT_CONFIG_10MB_SPEED)
1470                         reg |= PHY_NEG_ADV_10H;
1471         }
1472
1473         if(portConfiguration &
1474            PORT_CONFIG_1000MB_SPEED) {
1475                 reg |= 1;
1476         }
1477
1478         ql_mii_write_reg_ex(qdev, PHY_NEG_ADVER, reg,
1479                             PHYAddr[qdev->mac_index]);
1480
1481         ql_mii_read_reg_ex(qdev, CONTROL_REG, &reg, PHYAddr[qdev->mac_index]);
1482
1483         ql_mii_write_reg_ex(qdev, CONTROL_REG,
1484                             reg | PHY_CTRL_RESTART_NEG | PHY_CTRL_AUTO_NEG,
1485                             PHYAddr[qdev->mac_index]);
1486 }
1487
1488 static void ql_phy_init_ex(struct ql3_adapter *qdev)
1489 {
1490         ql_phy_reset_ex(qdev);
1491         PHY_Setup(qdev);
1492         ql_phy_start_neg_ex(qdev);
1493 }
1494
1495 /*
1496  * Caller holds hw_lock.
1497  */
1498 static u32 ql_get_link_state(struct ql3_adapter *qdev)
1499 {
1500         struct ql3xxx_port_registers __iomem *port_regs =
1501                         qdev->mem_map_registers;
1502         u32 bitToCheck = 0;
1503         u32 temp, linkState;
1504
1505         switch (qdev->mac_index) {
1506         case 0:
1507                 bitToCheck = PORT_STATUS_UP0;
1508                 break;
1509         case 1:
1510                 bitToCheck = PORT_STATUS_UP1;
1511                 break;
1512         }
1513         temp = ql_read_page0_reg(qdev, &port_regs->portStatus);
1514         if (temp & bitToCheck) {
1515                 linkState = LS_UP;
1516         } else {
1517                 linkState = LS_DOWN;
1518         }
1519         return linkState;
1520 }
1521
1522 static int ql_port_start(struct ql3_adapter *qdev)
1523 {
1524         if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1525                 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1526                          2) << 7)) {
1527                 printk(KERN_ERR "%s: Could not get hw lock for GIO\n",
1528                        qdev->ndev->name);
1529                 return -1;
1530         }
1531
1532         if (ql_is_fiber(qdev)) {
1533                 ql_petbi_init(qdev);
1534         } else {
1535                 /* Copper port */
1536                 ql_phy_init_ex(qdev);
1537         }
1538
1539         ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1540         return 0;
1541 }
1542
1543 static int ql_finish_auto_neg(struct ql3_adapter *qdev)
1544 {
1545
1546         if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1547                 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1548                          2) << 7))
1549                 return -1;
1550
1551         if (!ql_auto_neg_error(qdev)) {
1552                 if (test_bit(QL_LINK_MASTER,&qdev->flags)) {
1553                         /* configure the MAC */
1554                         if (netif_msg_link(qdev))
1555                                 printk(KERN_DEBUG PFX
1556                                        "%s: Configuring link.\n",
1557                                        qdev->ndev->
1558                                        name);
1559                         ql_mac_cfg_soft_reset(qdev, 1);
1560                         ql_mac_cfg_gig(qdev,
1561                                        (ql_get_link_speed
1562                                         (qdev) ==
1563                                         SPEED_1000));
1564                         ql_mac_cfg_full_dup(qdev,
1565                                             ql_is_link_full_dup
1566                                             (qdev));
1567                         ql_mac_cfg_pause(qdev,
1568                                          ql_is_neg_pause
1569                                          (qdev));
1570                         ql_mac_cfg_soft_reset(qdev, 0);
1571
1572                         /* enable the MAC */
1573                         if (netif_msg_link(qdev))
1574                                 printk(KERN_DEBUG PFX
1575                                        "%s: Enabling mac.\n",
1576                                        qdev->ndev->
1577                                                name);
1578                         ql_mac_enable(qdev, 1);
1579                 }
1580
1581                 qdev->port_link_state = LS_UP;
1582                 netif_start_queue(qdev->ndev);
1583                 netif_carrier_on(qdev->ndev);
1584                 if (netif_msg_link(qdev))
1585                         printk(KERN_INFO PFX
1586                                "%s: Link is up at %d Mbps, %s duplex.\n",
1587                                qdev->ndev->name,
1588                                ql_get_link_speed(qdev),
1589                                ql_is_link_full_dup(qdev)
1590                                ? "full" : "half");
1591
1592         } else {        /* Remote error detected */
1593
1594                 if (test_bit(QL_LINK_MASTER,&qdev->flags)) {
1595                         if (netif_msg_link(qdev))
1596                                 printk(KERN_DEBUG PFX
1597                                        "%s: Remote error detected. "
1598                                        "Calling ql_port_start().\n",
1599                                        qdev->ndev->
1600                                        name);
1601                         /*
1602                          * ql_port_start() is shared code and needs
1603                          * to lock the PHY on it's own.
1604                          */
1605                         ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1606                         if(ql_port_start(qdev)) {/* Restart port */
1607                                 return -1;
1608                         } else
1609                                 return 0;
1610                 }
1611         }
1612         ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1613         return 0;
1614 }
1615
1616 static void ql_link_state_machine_work(struct work_struct *work)
1617 {
1618         struct ql3_adapter *qdev =
1619                 container_of(work, struct ql3_adapter, link_state_work.work);
1620
1621         u32 curr_link_state;
1622         unsigned long hw_flags;
1623
1624         spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1625
1626         curr_link_state = ql_get_link_state(qdev);
1627
1628         if (test_bit(QL_RESET_ACTIVE,&qdev->flags)) {
1629                 if (netif_msg_link(qdev))
1630                         printk(KERN_INFO PFX
1631                                "%s: Reset in progress, skip processing link "
1632                                "state.\n", qdev->ndev->name);
1633
1634                 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1635
1636                 /* Restart timer on 2 second interval. */
1637                 mod_timer(&qdev->adapter_timer, jiffies + HZ * 1);\
1638
1639                 return;
1640         }
1641
1642         switch (qdev->port_link_state) {
1643         default:
1644                 if (test_bit(QL_LINK_MASTER,&qdev->flags)) {
1645                         ql_port_start(qdev);
1646                 }
1647                 qdev->port_link_state = LS_DOWN;
1648                 /* Fall Through */
1649
1650         case LS_DOWN:
1651                 if (curr_link_state == LS_UP) {
1652                         if (netif_msg_link(qdev))
1653                                 printk(KERN_INFO PFX "%s: Link is up.\n",
1654                                        qdev->ndev->name);
1655                         if (ql_is_auto_neg_complete(qdev))
1656                                 ql_finish_auto_neg(qdev);
1657
1658                         if (qdev->port_link_state == LS_UP)
1659                                 ql_link_down_detect_clear(qdev);
1660
1661                         qdev->port_link_state = LS_UP;
1662                 }
1663                 break;
1664
1665         case LS_UP:
1666                 /*
1667                  * See if the link is currently down or went down and came
1668                  * back up
1669                  */
1670                 if (curr_link_state == LS_DOWN) {
1671                         if (netif_msg_link(qdev))
1672                                 printk(KERN_INFO PFX "%s: Link is down.\n",
1673                                        qdev->ndev->name);
1674                         qdev->port_link_state = LS_DOWN;
1675                 }
1676                 if (ql_link_down_detect(qdev))
1677                         qdev->port_link_state = LS_DOWN;
1678                 break;
1679         }
1680         spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1681
1682         /* Restart timer on 2 second interval. */
1683         mod_timer(&qdev->adapter_timer, jiffies + HZ * 1);
1684 }
1685
1686 /*
1687  * Caller must take hw_lock and QL_PHY_GIO_SEM.
1688  */
1689 static void ql_get_phy_owner(struct ql3_adapter *qdev)
1690 {
1691         if (ql_this_adapter_controls_port(qdev))
1692                 set_bit(QL_LINK_MASTER,&qdev->flags);
1693         else
1694                 clear_bit(QL_LINK_MASTER,&qdev->flags);
1695 }
1696
1697 /*
1698  * Caller must take hw_lock and QL_PHY_GIO_SEM.
1699  */
1700 static void ql_init_scan_mode(struct ql3_adapter *qdev)
1701 {
1702         ql_mii_enable_scan_mode(qdev);
1703
1704         if (test_bit(QL_LINK_OPTICAL,&qdev->flags)) {
1705                 if (ql_this_adapter_controls_port(qdev))
1706                         ql_petbi_init_ex(qdev);
1707         } else {
1708                 if (ql_this_adapter_controls_port(qdev))
1709                         ql_phy_init_ex(qdev);
1710         }
1711 }
1712
1713 /*
1714  * MII_Setup needs to be called before taking the PHY out of reset so that the
1715  * management interface clock speed can be set properly.  It would be better if
1716  * we had a way to disable MDC until after the PHY is out of reset, but we
1717  * don't have that capability.
1718  */
1719 static int ql_mii_setup(struct ql3_adapter *qdev)
1720 {
1721         u32 reg;
1722         struct ql3xxx_port_registers __iomem *port_regs =
1723                         qdev->mem_map_registers;
1724
1725         if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1726                         (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1727                          2) << 7))
1728                 return -1;
1729
1730         if (qdev->device_id == QL3032_DEVICE_ID)
1731                 ql_write_page0_reg(qdev,
1732                         &port_regs->macMIIMgmtControlReg, 0x0f00000);
1733
1734         /* Divide 125MHz clock by 28 to meet PHY timing requirements */
1735         reg = MAC_MII_CONTROL_CLK_SEL_DIV28;
1736
1737         ql_write_page0_reg(qdev, &port_regs->macMIIMgmtControlReg,
1738                            reg | ((MAC_MII_CONTROL_CLK_SEL_MASK) << 16));
1739
1740         ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1741         return 0;
1742 }
1743
1744 static u32 ql_supported_modes(struct ql3_adapter *qdev)
1745 {
1746         u32 supported;
1747
1748         if (test_bit(QL_LINK_OPTICAL,&qdev->flags)) {
1749                 supported = SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE
1750                     | SUPPORTED_Autoneg;
1751         } else {
1752                 supported = SUPPORTED_10baseT_Half
1753                     | SUPPORTED_10baseT_Full
1754                     | SUPPORTED_100baseT_Half
1755                     | SUPPORTED_100baseT_Full
1756                     | SUPPORTED_1000baseT_Half
1757                     | SUPPORTED_1000baseT_Full
1758                     | SUPPORTED_Autoneg | SUPPORTED_TP;
1759         }
1760
1761         return supported;
1762 }
1763
1764 static int ql_get_auto_cfg_status(struct ql3_adapter *qdev)
1765 {
1766         int status;
1767         unsigned long hw_flags;
1768         spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1769         if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1770                 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1771                          2) << 7)) {
1772                 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1773                 return 0;
1774         }
1775         status = ql_is_auto_cfg(qdev);
1776         ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1777         spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1778         return status;
1779 }
1780
1781 static u32 ql_get_speed(struct ql3_adapter *qdev)
1782 {
1783         u32 status;
1784         unsigned long hw_flags;
1785         spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1786         if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1787                 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1788                          2) << 7)) {
1789                 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1790                 return 0;
1791         }
1792         status = ql_get_link_speed(qdev);
1793         ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1794         spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1795         return status;
1796 }
1797
1798 static int ql_get_full_dup(struct ql3_adapter *qdev)
1799 {
1800         int status;
1801         unsigned long hw_flags;
1802         spin_lock_irqsave(&qdev->hw_lock, hw_flags);
1803         if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
1804                 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
1805                          2) << 7)) {
1806                 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1807                 return 0;
1808         }
1809         status = ql_is_link_full_dup(qdev);
1810         ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
1811         spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
1812         return status;
1813 }
1814
1815
1816 static int ql_get_settings(struct net_device *ndev, struct ethtool_cmd *ecmd)
1817 {
1818         struct ql3_adapter *qdev = netdev_priv(ndev);
1819
1820         ecmd->transceiver = XCVR_INTERNAL;
1821         ecmd->supported = ql_supported_modes(qdev);
1822
1823         if (test_bit(QL_LINK_OPTICAL,&qdev->flags)) {
1824                 ecmd->port = PORT_FIBRE;
1825         } else {
1826                 ecmd->port = PORT_TP;
1827                 ecmd->phy_address = qdev->PHYAddr;
1828         }
1829         ecmd->advertising = ql_supported_modes(qdev);
1830         ecmd->autoneg = ql_get_auto_cfg_status(qdev);
1831         ecmd->speed = ql_get_speed(qdev);
1832         ecmd->duplex = ql_get_full_dup(qdev);
1833         return 0;
1834 }
1835
1836 static void ql_get_drvinfo(struct net_device *ndev,
1837                            struct ethtool_drvinfo *drvinfo)
1838 {
1839         struct ql3_adapter *qdev = netdev_priv(ndev);
1840         strncpy(drvinfo->driver, ql3xxx_driver_name, 32);
1841         strncpy(drvinfo->version, ql3xxx_driver_version, 32);
1842         strncpy(drvinfo->fw_version, "N/A", 32);
1843         strncpy(drvinfo->bus_info, pci_name(qdev->pdev), 32);
1844         drvinfo->regdump_len = 0;
1845         drvinfo->eedump_len = 0;
1846 }
1847
1848 static u32 ql_get_msglevel(struct net_device *ndev)
1849 {
1850         struct ql3_adapter *qdev = netdev_priv(ndev);
1851         return qdev->msg_enable;
1852 }
1853
1854 static void ql_set_msglevel(struct net_device *ndev, u32 value)
1855 {
1856         struct ql3_adapter *qdev = netdev_priv(ndev);
1857         qdev->msg_enable = value;
1858 }
1859
1860 static void ql_get_pauseparam(struct net_device *ndev,
1861                               struct ethtool_pauseparam *pause)
1862 {
1863         struct ql3_adapter *qdev = netdev_priv(ndev);
1864         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
1865
1866         u32 reg;
1867         if(qdev->mac_index == 0)
1868                 reg = ql_read_page0_reg(qdev, &port_regs->mac0ConfigReg);
1869         else
1870                 reg = ql_read_page0_reg(qdev, &port_regs->mac1ConfigReg);
1871
1872         pause->autoneg  = ql_get_auto_cfg_status(qdev);
1873         pause->rx_pause = (reg & MAC_CONFIG_REG_RF) >> 2;
1874         pause->tx_pause = (reg & MAC_CONFIG_REG_TF) >> 1;
1875 }
1876
1877 static const struct ethtool_ops ql3xxx_ethtool_ops = {
1878         .get_settings = ql_get_settings,
1879         .get_drvinfo = ql_get_drvinfo,
1880         .get_link = ethtool_op_get_link,
1881         .get_msglevel = ql_get_msglevel,
1882         .set_msglevel = ql_set_msglevel,
1883         .get_pauseparam = ql_get_pauseparam,
1884 };
1885
1886 static int ql_populate_free_queue(struct ql3_adapter *qdev)
1887 {
1888         struct ql_rcv_buf_cb *lrg_buf_cb = qdev->lrg_buf_free_head;
1889         dma_addr_t map;
1890         int err;
1891
1892         while (lrg_buf_cb) {
1893                 if (!lrg_buf_cb->skb) {
1894                         lrg_buf_cb->skb = netdev_alloc_skb(qdev->ndev,
1895                                                            qdev->lrg_buffer_len);
1896                         if (unlikely(!lrg_buf_cb->skb)) {
1897                                 printk(KERN_DEBUG PFX
1898                                        "%s: Failed netdev_alloc_skb().\n",
1899                                        qdev->ndev->name);
1900                                 break;
1901                         } else {
1902                                 /*
1903                                  * We save some space to copy the ethhdr from
1904                                  * first buffer
1905                                  */
1906                                 skb_reserve(lrg_buf_cb->skb, QL_HEADER_SPACE);
1907                                 map = pci_map_single(qdev->pdev,
1908                                                      lrg_buf_cb->skb->data,
1909                                                      qdev->lrg_buffer_len -
1910                                                      QL_HEADER_SPACE,
1911                                                      PCI_DMA_FROMDEVICE);
1912
1913                                 err = pci_dma_mapping_error(qdev->pdev, map);
1914                                 if(err) {
1915                                         printk(KERN_ERR "%s: PCI mapping failed with error: %d\n",
1916                                                qdev->ndev->name, err);
1917                                         dev_kfree_skb(lrg_buf_cb->skb);
1918                                         lrg_buf_cb->skb = NULL;
1919                                         break;
1920                                 }
1921
1922
1923                                 lrg_buf_cb->buf_phy_addr_low =
1924                                     cpu_to_le32(LS_64BITS(map));
1925                                 lrg_buf_cb->buf_phy_addr_high =
1926                                     cpu_to_le32(MS_64BITS(map));
1927                                 pci_unmap_addr_set(lrg_buf_cb, mapaddr, map);
1928                                 pci_unmap_len_set(lrg_buf_cb, maplen,
1929                                                   qdev->lrg_buffer_len -
1930                                                   QL_HEADER_SPACE);
1931                                 --qdev->lrg_buf_skb_check;
1932                                 if (!qdev->lrg_buf_skb_check)
1933                                         return 1;
1934                         }
1935                 }
1936                 lrg_buf_cb = lrg_buf_cb->next;
1937         }
1938         return 0;
1939 }
1940
1941 /*
1942  * Caller holds hw_lock.
1943  */
1944 static void ql_update_small_bufq_prod_index(struct ql3_adapter *qdev)
1945 {
1946         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
1947         if (qdev->small_buf_release_cnt >= 16) {
1948                 while (qdev->small_buf_release_cnt >= 16) {
1949                         qdev->small_buf_q_producer_index++;
1950
1951                         if (qdev->small_buf_q_producer_index ==
1952                             NUM_SBUFQ_ENTRIES)
1953                                 qdev->small_buf_q_producer_index = 0;
1954                         qdev->small_buf_release_cnt -= 8;
1955                 }
1956                 wmb();
1957                 writel(qdev->small_buf_q_producer_index,
1958                         &port_regs->CommonRegs.rxSmallQProducerIndex);
1959         }
1960 }
1961
1962 /*
1963  * Caller holds hw_lock.
1964  */
1965 static void ql_update_lrg_bufq_prod_index(struct ql3_adapter *qdev)
1966 {
1967         struct bufq_addr_element *lrg_buf_q_ele;
1968         int i;
1969         struct ql_rcv_buf_cb *lrg_buf_cb;
1970         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
1971
1972         if ((qdev->lrg_buf_free_count >= 8)
1973             && (qdev->lrg_buf_release_cnt >= 16)) {
1974
1975                 if (qdev->lrg_buf_skb_check)
1976                         if (!ql_populate_free_queue(qdev))
1977                                 return;
1978
1979                 lrg_buf_q_ele = qdev->lrg_buf_next_free;
1980
1981                 while ((qdev->lrg_buf_release_cnt >= 16)
1982                        && (qdev->lrg_buf_free_count >= 8)) {
1983
1984                         for (i = 0; i < 8; i++) {
1985                                 lrg_buf_cb =
1986                                     ql_get_from_lrg_buf_free_list(qdev);
1987                                 lrg_buf_q_ele->addr_high =
1988                                     lrg_buf_cb->buf_phy_addr_high;
1989                                 lrg_buf_q_ele->addr_low =
1990                                     lrg_buf_cb->buf_phy_addr_low;
1991                                 lrg_buf_q_ele++;
1992
1993                                 qdev->lrg_buf_release_cnt--;
1994                         }
1995
1996                         qdev->lrg_buf_q_producer_index++;
1997
1998                         if (qdev->lrg_buf_q_producer_index == qdev->num_lbufq_entries)
1999                                 qdev->lrg_buf_q_producer_index = 0;
2000
2001                         if (qdev->lrg_buf_q_producer_index ==
2002                             (qdev->num_lbufq_entries - 1)) {
2003                                 lrg_buf_q_ele = qdev->lrg_buf_q_virt_addr;
2004                         }
2005                 }
2006                 wmb();
2007                 qdev->lrg_buf_next_free = lrg_buf_q_ele;
2008                 writel(qdev->lrg_buf_q_producer_index,
2009                         &port_regs->CommonRegs.rxLargeQProducerIndex);
2010         }
2011 }
2012
2013 static void ql_process_mac_tx_intr(struct ql3_adapter *qdev,
2014                                    struct ob_mac_iocb_rsp *mac_rsp)
2015 {
2016         struct ql_tx_buf_cb *tx_cb;
2017         int i;
2018         int retval = 0;
2019
2020         if(mac_rsp->flags & OB_MAC_IOCB_RSP_S) {
2021                 printk(KERN_WARNING "Frame short but, frame was padded and sent.\n");
2022         }
2023
2024         tx_cb = &qdev->tx_buf[mac_rsp->transaction_id];
2025
2026         /*  Check the transmit response flags for any errors */
2027         if(mac_rsp->flags & OB_MAC_IOCB_RSP_S) {
2028                 printk(KERN_ERR "Frame too short to be legal, frame not sent.\n");
2029
2030                 qdev->ndev->stats.tx_errors++;
2031                 retval = -EIO;
2032                 goto frame_not_sent;
2033         }
2034
2035         if(tx_cb->seg_count == 0) {
2036                 printk(KERN_ERR "tx_cb->seg_count == 0: %d\n", mac_rsp->transaction_id);
2037
2038                 qdev->ndev->stats.tx_errors++;
2039                 retval = -EIO;
2040                 goto invalid_seg_count;
2041         }
2042
2043         pci_unmap_single(qdev->pdev,
2044                          pci_unmap_addr(&tx_cb->map[0], mapaddr),
2045                          pci_unmap_len(&tx_cb->map[0], maplen),
2046                          PCI_DMA_TODEVICE);
2047         tx_cb->seg_count--;
2048         if (tx_cb->seg_count) {
2049                 for (i = 1; i < tx_cb->seg_count; i++) {
2050                         pci_unmap_page(qdev->pdev,
2051                                        pci_unmap_addr(&tx_cb->map[i],
2052                                                       mapaddr),
2053                                        pci_unmap_len(&tx_cb->map[i], maplen),
2054                                        PCI_DMA_TODEVICE);
2055                 }
2056         }
2057         qdev->ndev->stats.tx_packets++;
2058         qdev->ndev->stats.tx_bytes += tx_cb->skb->len;
2059
2060 frame_not_sent:
2061         dev_kfree_skb_irq(tx_cb->skb);
2062         tx_cb->skb = NULL;
2063
2064 invalid_seg_count:
2065         atomic_inc(&qdev->tx_count);
2066 }
2067
2068 static void ql_get_sbuf(struct ql3_adapter *qdev)
2069 {
2070         if (++qdev->small_buf_index == NUM_SMALL_BUFFERS)
2071                 qdev->small_buf_index = 0;
2072         qdev->small_buf_release_cnt++;
2073 }
2074
2075 static struct ql_rcv_buf_cb *ql_get_lbuf(struct ql3_adapter *qdev)
2076 {
2077         struct ql_rcv_buf_cb *lrg_buf_cb = NULL;
2078         lrg_buf_cb = &qdev->lrg_buf[qdev->lrg_buf_index];
2079         qdev->lrg_buf_release_cnt++;
2080         if (++qdev->lrg_buf_index == qdev->num_large_buffers)
2081                 qdev->lrg_buf_index = 0;
2082         return(lrg_buf_cb);
2083 }
2084
2085 /*
2086  * The difference between 3022 and 3032 for inbound completions:
2087  * 3022 uses two buffers per completion.  The first buffer contains
2088  * (some) header info, the second the remainder of the headers plus
2089  * the data.  For this chip we reserve some space at the top of the
2090  * receive buffer so that the header info in buffer one can be
2091  * prepended to the buffer two.  Buffer two is the sent up while
2092  * buffer one is returned to the hardware to be reused.
2093  * 3032 receives all of it's data and headers in one buffer for a
2094  * simpler process.  3032 also supports checksum verification as
2095  * can be seen in ql_process_macip_rx_intr().
2096  */
2097 static void ql_process_mac_rx_intr(struct ql3_adapter *qdev,
2098                                    struct ib_mac_iocb_rsp *ib_mac_rsp_ptr)
2099 {
2100         struct ql_rcv_buf_cb *lrg_buf_cb1 = NULL;
2101         struct ql_rcv_buf_cb *lrg_buf_cb2 = NULL;
2102         struct sk_buff *skb;
2103         u16 length = le16_to_cpu(ib_mac_rsp_ptr->length);
2104
2105         /*
2106          * Get the inbound address list (small buffer).
2107          */
2108         ql_get_sbuf(qdev);
2109
2110         if (qdev->device_id == QL3022_DEVICE_ID)
2111                 lrg_buf_cb1 = ql_get_lbuf(qdev);
2112
2113         /* start of second buffer */
2114         lrg_buf_cb2 = ql_get_lbuf(qdev);
2115         skb = lrg_buf_cb2->skb;
2116
2117         qdev->ndev->stats.rx_packets++;
2118         qdev->ndev->stats.rx_bytes += length;
2119
2120         skb_put(skb, length);
2121         pci_unmap_single(qdev->pdev,
2122                          pci_unmap_addr(lrg_buf_cb2, mapaddr),
2123                          pci_unmap_len(lrg_buf_cb2, maplen),
2124                          PCI_DMA_FROMDEVICE);
2125         prefetch(skb->data);
2126         skb->ip_summed = CHECKSUM_NONE;
2127         skb->protocol = eth_type_trans(skb, qdev->ndev);
2128
2129         netif_receive_skb(skb);
2130         lrg_buf_cb2->skb = NULL;
2131
2132         if (qdev->device_id == QL3022_DEVICE_ID)
2133                 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb1);
2134         ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb2);
2135 }
2136
2137 static void ql_process_macip_rx_intr(struct ql3_adapter *qdev,
2138                                      struct ib_ip_iocb_rsp *ib_ip_rsp_ptr)
2139 {
2140         struct ql_rcv_buf_cb *lrg_buf_cb1 = NULL;
2141         struct ql_rcv_buf_cb *lrg_buf_cb2 = NULL;
2142         struct sk_buff *skb1 = NULL, *skb2;
2143         struct net_device *ndev = qdev->ndev;
2144         u16 length = le16_to_cpu(ib_ip_rsp_ptr->length);
2145         u16 size = 0;
2146
2147         /*
2148          * Get the inbound address list (small buffer).
2149          */
2150
2151         ql_get_sbuf(qdev);
2152
2153         if (qdev->device_id == QL3022_DEVICE_ID) {
2154                 /* start of first buffer on 3022 */
2155                 lrg_buf_cb1 = ql_get_lbuf(qdev);
2156                 skb1 = lrg_buf_cb1->skb;
2157                 size = ETH_HLEN;
2158                 if (*((u16 *) skb1->data) != 0xFFFF)
2159                         size += VLAN_ETH_HLEN - ETH_HLEN;
2160         }
2161
2162         /* start of second buffer */
2163         lrg_buf_cb2 = ql_get_lbuf(qdev);
2164         skb2 = lrg_buf_cb2->skb;
2165
2166         skb_put(skb2, length);  /* Just the second buffer length here. */
2167         pci_unmap_single(qdev->pdev,
2168                          pci_unmap_addr(lrg_buf_cb2, mapaddr),
2169                          pci_unmap_len(lrg_buf_cb2, maplen),
2170                          PCI_DMA_FROMDEVICE);
2171         prefetch(skb2->data);
2172
2173         skb2->ip_summed = CHECKSUM_NONE;
2174         if (qdev->device_id == QL3022_DEVICE_ID) {
2175                 /*
2176                  * Copy the ethhdr from first buffer to second. This
2177                  * is necessary for 3022 IP completions.
2178                  */
2179                 skb_copy_from_linear_data_offset(skb1, VLAN_ID_LEN,
2180                                                  skb_push(skb2, size), size);
2181         } else {
2182                 u16 checksum = le16_to_cpu(ib_ip_rsp_ptr->checksum);
2183                 if (checksum &
2184                         (IB_IP_IOCB_RSP_3032_ICE |
2185                          IB_IP_IOCB_RSP_3032_CE)) {
2186                         printk(KERN_ERR
2187                                "%s: Bad checksum for this %s packet, checksum = %x.\n",
2188                                __func__,
2189                                ((checksum &
2190                                 IB_IP_IOCB_RSP_3032_TCP) ? "TCP" :
2191                                 "UDP"),checksum);
2192                 } else if ((checksum & IB_IP_IOCB_RSP_3032_TCP) ||
2193                                 (checksum & IB_IP_IOCB_RSP_3032_UDP &&
2194                                 !(checksum & IB_IP_IOCB_RSP_3032_NUC))) {
2195                         skb2->ip_summed = CHECKSUM_UNNECESSARY;
2196                 }
2197         }
2198         skb2->protocol = eth_type_trans(skb2, qdev->ndev);
2199
2200         netif_receive_skb(skb2);
2201         ndev->stats.rx_packets++;
2202         ndev->stats.rx_bytes += length;
2203         lrg_buf_cb2->skb = NULL;
2204
2205         if (qdev->device_id == QL3022_DEVICE_ID)
2206                 ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb1);
2207         ql_release_to_lrg_buf_free_list(qdev, lrg_buf_cb2);
2208 }
2209
2210 static int ql_tx_rx_clean(struct ql3_adapter *qdev,
2211                           int *tx_cleaned, int *rx_cleaned, int work_to_do)
2212 {
2213         struct net_rsp_iocb *net_rsp;
2214         struct net_device *ndev = qdev->ndev;
2215         int work_done = 0;
2216
2217         /* While there are entries in the completion queue. */
2218         while ((le32_to_cpu(*(qdev->prsp_producer_index)) !=
2219                 qdev->rsp_consumer_index) && (work_done < work_to_do)) {
2220
2221                 net_rsp = qdev->rsp_current;
2222                 rmb();
2223                 /*
2224                  * Fix 4032 chipe undocumented "feature" where bit-8 is set if the
2225                  * inbound completion is for a VLAN.
2226                  */
2227                 if (qdev->device_id == QL3032_DEVICE_ID)
2228                         net_rsp->opcode &= 0x7f;
2229                 switch (net_rsp->opcode) {
2230
2231                 case OPCODE_OB_MAC_IOCB_FN0:
2232                 case OPCODE_OB_MAC_IOCB_FN2:
2233                         ql_process_mac_tx_intr(qdev, (struct ob_mac_iocb_rsp *)
2234                                                net_rsp);
2235                         (*tx_cleaned)++;
2236                         break;
2237
2238                 case OPCODE_IB_MAC_IOCB:
2239                 case OPCODE_IB_3032_MAC_IOCB:
2240                         ql_process_mac_rx_intr(qdev, (struct ib_mac_iocb_rsp *)
2241                                                net_rsp);
2242                         (*rx_cleaned)++;
2243                         break;
2244
2245                 case OPCODE_IB_IP_IOCB:
2246                 case OPCODE_IB_3032_IP_IOCB:
2247                         ql_process_macip_rx_intr(qdev, (struct ib_ip_iocb_rsp *)
2248                                                  net_rsp);
2249                         (*rx_cleaned)++;
2250                         break;
2251                 default:
2252                         {
2253                                 u32 *tmp = (u32 *) net_rsp;
2254                                 printk(KERN_ERR PFX
2255                                        "%s: Hit default case, not "
2256                                        "handled!\n"
2257                                        "        dropping the packet, opcode = "
2258                                        "%x.\n",
2259                                        ndev->name, net_rsp->opcode);
2260                                 printk(KERN_ERR PFX
2261                                        "0x%08lx 0x%08lx 0x%08lx 0x%08lx \n",
2262                                        (unsigned long int)tmp[0],
2263                                        (unsigned long int)tmp[1],
2264                                        (unsigned long int)tmp[2],
2265                                        (unsigned long int)tmp[3]);
2266                         }
2267                 }
2268
2269                 qdev->rsp_consumer_index++;
2270
2271                 if (qdev->rsp_consumer_index == NUM_RSP_Q_ENTRIES) {
2272                         qdev->rsp_consumer_index = 0;
2273                         qdev->rsp_current = qdev->rsp_q_virt_addr;
2274                 } else {
2275                         qdev->rsp_current++;
2276                 }
2277
2278                 work_done = *tx_cleaned + *rx_cleaned;
2279         }
2280
2281         return work_done;
2282 }
2283
2284 static int ql_poll(struct napi_struct *napi, int budget)
2285 {
2286         struct ql3_adapter *qdev = container_of(napi, struct ql3_adapter, napi);
2287         int rx_cleaned = 0, tx_cleaned = 0;
2288         unsigned long hw_flags;
2289         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
2290
2291         ql_tx_rx_clean(qdev, &tx_cleaned, &rx_cleaned, budget);
2292
2293         if (tx_cleaned + rx_cleaned != budget) {
2294                 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
2295                 __napi_complete(napi);
2296                 ql_update_small_bufq_prod_index(qdev);
2297                 ql_update_lrg_bufq_prod_index(qdev);
2298                 writel(qdev->rsp_consumer_index,
2299                             &port_regs->CommonRegs.rspQConsumerIndex);
2300                 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
2301
2302                 ql_enable_interrupts(qdev);
2303         }
2304         return tx_cleaned + rx_cleaned;
2305 }
2306
2307 static irqreturn_t ql3xxx_isr(int irq, void *dev_id)
2308 {
2309
2310         struct net_device *ndev = dev_id;
2311         struct ql3_adapter *qdev = netdev_priv(ndev);
2312         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
2313         u32 value;
2314         int handled = 1;
2315         u32 var;
2316
2317         port_regs = qdev->mem_map_registers;
2318
2319         value =
2320             ql_read_common_reg_l(qdev, &port_regs->CommonRegs.ispControlStatus);
2321
2322         if (value & (ISP_CONTROL_FE | ISP_CONTROL_RI)) {
2323                 spin_lock(&qdev->adapter_lock);
2324                 netif_stop_queue(qdev->ndev);
2325                 netif_carrier_off(qdev->ndev);
2326                 ql_disable_interrupts(qdev);
2327                 qdev->port_link_state = LS_DOWN;
2328                 set_bit(QL_RESET_ACTIVE,&qdev->flags) ;
2329
2330                 if (value & ISP_CONTROL_FE) {
2331                         /*
2332                          * Chip Fatal Error.
2333                          */
2334                         var =
2335                             ql_read_page0_reg_l(qdev,
2336                                               &port_regs->PortFatalErrStatus);
2337                         printk(KERN_WARNING PFX
2338                                "%s: Resetting chip. PortFatalErrStatus "
2339                                "register = 0x%x\n", ndev->name, var);
2340                         set_bit(QL_RESET_START,&qdev->flags) ;
2341                 } else {
2342                         /*
2343                          * Soft Reset Requested.
2344                          */
2345                         set_bit(QL_RESET_PER_SCSI,&qdev->flags) ;
2346                         printk(KERN_ERR PFX
2347                                "%s: Another function issued a reset to the "
2348                                "chip. ISR value = %x.\n", ndev->name, value);
2349                 }
2350                 queue_delayed_work(qdev->workqueue, &qdev->reset_work, 0);
2351                 spin_unlock(&qdev->adapter_lock);
2352         } else if (value & ISP_IMR_DISABLE_CMPL_INT) {
2353                 ql_disable_interrupts(qdev);
2354                 if (likely(napi_schedule_prep(&qdev->napi))) {
2355                         __napi_schedule(&qdev->napi);
2356                 }
2357         } else {
2358                 return IRQ_NONE;
2359         }
2360
2361         return IRQ_RETVAL(handled);
2362 }
2363
2364 /*
2365  * Get the total number of segments needed for the
2366  * given number of fragments.  This is necessary because
2367  * outbound address lists (OAL) will be used when more than
2368  * two frags are given.  Each address list has 5 addr/len
2369  * pairs.  The 5th pair in each AOL is used to  point to
2370  * the next AOL if more frags are coming.
2371  * That is why the frags:segment count  ratio is not linear.
2372  */
2373 static int ql_get_seg_count(struct ql3_adapter *qdev,
2374                             unsigned short frags)
2375 {
2376         if (qdev->device_id == QL3022_DEVICE_ID)
2377                 return 1;
2378
2379         switch(frags) {
2380         case 0: return 1;       /* just the skb->data seg */
2381         case 1: return 2;       /* skb->data + 1 frag */
2382         case 2: return 3;       /* skb->data + 2 frags */
2383         case 3: return 5;       /* skb->data + 1 frag + 1 AOL containting 2 frags */
2384         case 4: return 6;
2385         case 5: return 7;
2386         case 6: return 8;
2387         case 7: return 10;
2388         case 8: return 11;
2389         case 9: return 12;
2390         case 10: return 13;
2391         case 11: return 15;
2392         case 12: return 16;
2393         case 13: return 17;
2394         case 14: return 18;
2395         case 15: return 20;
2396         case 16: return 21;
2397         case 17: return 22;
2398         case 18: return 23;
2399         }
2400         return -1;
2401 }
2402
2403 static void ql_hw_csum_setup(const struct sk_buff *skb,
2404                              struct ob_mac_iocb_req *mac_iocb_ptr)
2405 {
2406         const struct iphdr *ip = ip_hdr(skb);
2407
2408         mac_iocb_ptr->ip_hdr_off = skb_network_offset(skb);
2409         mac_iocb_ptr->ip_hdr_len = ip->ihl;
2410
2411         if (ip->protocol == IPPROTO_TCP) {
2412                 mac_iocb_ptr->flags1 |= OB_3032MAC_IOCB_REQ_TC |
2413                         OB_3032MAC_IOCB_REQ_IC;
2414         } else {
2415                 mac_iocb_ptr->flags1 |= OB_3032MAC_IOCB_REQ_UC |
2416                         OB_3032MAC_IOCB_REQ_IC;
2417         }
2418
2419 }
2420
2421 /*
2422  * Map the buffers for this transmit.  This will return
2423  * NETDEV_TX_BUSY or NETDEV_TX_OK based on success.
2424  */
2425 static int ql_send_map(struct ql3_adapter *qdev,
2426                                 struct ob_mac_iocb_req *mac_iocb_ptr,
2427                                 struct ql_tx_buf_cb *tx_cb,
2428                                 struct sk_buff *skb)
2429 {
2430         struct oal *oal;
2431         struct oal_entry *oal_entry;
2432         int len = skb_headlen(skb);
2433         dma_addr_t map;
2434         int err;
2435         int completed_segs, i;
2436         int seg_cnt, seg = 0;
2437         int frag_cnt = (int)skb_shinfo(skb)->nr_frags;
2438
2439         seg_cnt = tx_cb->seg_count;
2440         /*
2441          * Map the skb buffer first.
2442          */
2443         map = pci_map_single(qdev->pdev, skb->data, len, PCI_DMA_TODEVICE);
2444
2445         err = pci_dma_mapping_error(qdev->pdev, map);
2446         if(err) {
2447                 printk(KERN_ERR "%s: PCI mapping failed with error: %d\n",
2448                        qdev->ndev->name, err);
2449
2450                 return NETDEV_TX_BUSY;
2451         }
2452
2453         oal_entry = (struct oal_entry *)&mac_iocb_ptr->buf_addr0_low;
2454         oal_entry->dma_lo = cpu_to_le32(LS_64BITS(map));
2455         oal_entry->dma_hi = cpu_to_le32(MS_64BITS(map));
2456         oal_entry->len = cpu_to_le32(len);
2457         pci_unmap_addr_set(&tx_cb->map[seg], mapaddr, map);
2458         pci_unmap_len_set(&tx_cb->map[seg], maplen, len);
2459         seg++;
2460
2461         if (seg_cnt == 1) {
2462                 /* Terminate the last segment. */
2463                 oal_entry->len |= cpu_to_le32(OAL_LAST_ENTRY);
2464         } else {
2465                 oal = tx_cb->oal;
2466                 for (completed_segs=0; completed_segs<frag_cnt; completed_segs++,seg++) {
2467                         skb_frag_t *frag = &skb_shinfo(skb)->frags[completed_segs];
2468                         oal_entry++;
2469                         if ((seg == 2 && seg_cnt > 3) ||        /* Check for continuation */
2470                             (seg == 7 && seg_cnt > 8) ||        /* requirements. It's strange */
2471                             (seg == 12 && seg_cnt > 13) ||      /* but necessary. */
2472                             (seg == 17 && seg_cnt > 18)) {
2473                                 /* Continuation entry points to outbound address list. */
2474                                 map = pci_map_single(qdev->pdev, oal,
2475                                                      sizeof(struct oal),
2476                                                      PCI_DMA_TODEVICE);
2477
2478                                 err = pci_dma_mapping_error(qdev->pdev, map);
2479                                 if(err) {
2480
2481                                         printk(KERN_ERR "%s: PCI mapping outbound address list with error: %d\n",
2482                                                qdev->ndev->name, err);
2483                                         goto map_error;
2484                                 }
2485
2486                                 oal_entry->dma_lo = cpu_to_le32(LS_64BITS(map));
2487                                 oal_entry->dma_hi = cpu_to_le32(MS_64BITS(map));
2488                                 oal_entry->len =
2489                                     cpu_to_le32(sizeof(struct oal) |
2490                                                 OAL_CONT_ENTRY);
2491                                 pci_unmap_addr_set(&tx_cb->map[seg], mapaddr,
2492                                                    map);
2493                                 pci_unmap_len_set(&tx_cb->map[seg], maplen,
2494                                                   sizeof(struct oal));
2495                                 oal_entry = (struct oal_entry *)oal;
2496                                 oal++;
2497                                 seg++;
2498                         }
2499
2500                         map =
2501                             pci_map_page(qdev->pdev, frag->page,
2502                                          frag->page_offset, frag->size,
2503                                          PCI_DMA_TODEVICE);
2504
2505                         err = pci_dma_mapping_error(qdev->pdev, map);
2506                         if(err) {
2507                                 printk(KERN_ERR "%s: PCI mapping frags failed with error: %d\n",
2508                                        qdev->ndev->name, err);
2509                                 goto map_error;
2510                         }
2511
2512                         oal_entry->dma_lo = cpu_to_le32(LS_64BITS(map));
2513                         oal_entry->dma_hi = cpu_to_le32(MS_64BITS(map));
2514                         oal_entry->len = cpu_to_le32(frag->size);
2515                         pci_unmap_addr_set(&tx_cb->map[seg], mapaddr, map);
2516                         pci_unmap_len_set(&tx_cb->map[seg], maplen,
2517                                           frag->size);
2518                 }
2519                 /* Terminate the last segment. */
2520                 oal_entry->len |= cpu_to_le32(OAL_LAST_ENTRY);
2521         }
2522
2523         return NETDEV_TX_OK;
2524
2525 map_error:
2526         /* A PCI mapping failed and now we will need to back out
2527          * We need to traverse through the oal's and associated pages which
2528          * have been mapped and now we must unmap them to clean up properly
2529          */
2530
2531         seg = 1;
2532         oal_entry = (struct oal_entry *)&mac_iocb_ptr->buf_addr0_low;
2533         oal = tx_cb->oal;
2534         for (i=0; i<completed_segs; i++,seg++) {
2535                 oal_entry++;
2536
2537                 if((seg == 2 && seg_cnt > 3) ||        /* Check for continuation */
2538                    (seg == 7 && seg_cnt > 8) ||        /* requirements. It's strange */
2539                    (seg == 12 && seg_cnt > 13) ||      /* but necessary. */
2540                    (seg == 17 && seg_cnt > 18)) {
2541                         pci_unmap_single(qdev->pdev,
2542                                 pci_unmap_addr(&tx_cb->map[seg], mapaddr),
2543                                 pci_unmap_len(&tx_cb->map[seg], maplen),
2544                                  PCI_DMA_TODEVICE);
2545                         oal++;
2546                         seg++;
2547                 }
2548
2549                 pci_unmap_page(qdev->pdev,
2550                                pci_unmap_addr(&tx_cb->map[seg], mapaddr),
2551                                pci_unmap_len(&tx_cb->map[seg], maplen),
2552                                PCI_DMA_TODEVICE);
2553         }
2554
2555         pci_unmap_single(qdev->pdev,
2556                          pci_unmap_addr(&tx_cb->map[0], mapaddr),
2557                          pci_unmap_addr(&tx_cb->map[0], maplen),
2558                          PCI_DMA_TODEVICE);
2559
2560         return NETDEV_TX_BUSY;
2561
2562 }
2563
2564 /*
2565  * The difference between 3022 and 3032 sends:
2566  * 3022 only supports a simple single segment transmission.
2567  * 3032 supports checksumming and scatter/gather lists (fragments).
2568  * The 3032 supports sglists by using the 3 addr/len pairs (ALP)
2569  * in the IOCB plus a chain of outbound address lists (OAL) that
2570  * each contain 5 ALPs.  The last ALP of the IOCB (3rd) or OAL (5th)
2571  * will used to point to an OAL when more ALP entries are required.
2572  * The IOCB is always the top of the chain followed by one or more
2573  * OALs (when necessary).
2574  */
2575 static int ql3xxx_send(struct sk_buff *skb, struct net_device *ndev)
2576 {
2577         struct ql3_adapter *qdev = (struct ql3_adapter *)netdev_priv(ndev);
2578         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
2579         struct ql_tx_buf_cb *tx_cb;
2580         u32 tot_len = skb->len;
2581         struct ob_mac_iocb_req *mac_iocb_ptr;
2582
2583         if (unlikely(atomic_read(&qdev->tx_count) < 2)) {
2584                 return NETDEV_TX_BUSY;
2585         }
2586
2587         tx_cb = &qdev->tx_buf[qdev->req_producer_index] ;
2588         if((tx_cb->seg_count = ql_get_seg_count(qdev,
2589                                                 (skb_shinfo(skb)->nr_frags))) == -1) {
2590                 printk(KERN_ERR PFX"%s: invalid segment count!\n",__func__);
2591                 return NETDEV_TX_OK;
2592         }
2593
2594         mac_iocb_ptr = tx_cb->queue_entry;
2595         memset((void *)mac_iocb_ptr, 0, sizeof(struct ob_mac_iocb_req));
2596         mac_iocb_ptr->opcode = qdev->mac_ob_opcode;
2597         mac_iocb_ptr->flags = OB_MAC_IOCB_REQ_X;
2598         mac_iocb_ptr->flags |= qdev->mb_bit_mask;
2599         mac_iocb_ptr->transaction_id = qdev->req_producer_index;
2600         mac_iocb_ptr->data_len = cpu_to_le16((u16) tot_len);
2601         tx_cb->skb = skb;
2602         if (qdev->device_id == QL3032_DEVICE_ID &&
2603             skb->ip_summed == CHECKSUM_PARTIAL)
2604                 ql_hw_csum_setup(skb, mac_iocb_ptr);
2605
2606         if(ql_send_map(qdev,mac_iocb_ptr,tx_cb,skb) != NETDEV_TX_OK) {
2607                 printk(KERN_ERR PFX"%s: Could not map the segments!\n",__func__);
2608                 return NETDEV_TX_BUSY;
2609         }
2610
2611         wmb();
2612         qdev->req_producer_index++;
2613         if (qdev->req_producer_index == NUM_REQ_Q_ENTRIES)
2614                 qdev->req_producer_index = 0;
2615         wmb();
2616         ql_write_common_reg_l(qdev,
2617                             &port_regs->CommonRegs.reqQProducerIndex,
2618                             qdev->req_producer_index);
2619
2620         if (netif_msg_tx_queued(qdev))
2621                 printk(KERN_DEBUG PFX "%s: tx queued, slot %d, len %d\n",
2622                        ndev->name, qdev->req_producer_index, skb->len);
2623
2624         atomic_dec(&qdev->tx_count);
2625         return NETDEV_TX_OK;
2626 }
2627
2628 static int ql_alloc_net_req_rsp_queues(struct ql3_adapter *qdev)
2629 {
2630         qdev->req_q_size =
2631             (u32) (NUM_REQ_Q_ENTRIES * sizeof(struct ob_mac_iocb_req));
2632
2633         qdev->req_q_virt_addr =
2634             pci_alloc_consistent(qdev->pdev,
2635                                  (size_t) qdev->req_q_size,
2636                                  &qdev->req_q_phy_addr);
2637
2638         if ((qdev->req_q_virt_addr == NULL) ||
2639             LS_64BITS(qdev->req_q_phy_addr) & (qdev->req_q_size - 1)) {
2640                 printk(KERN_ERR PFX "%s: reqQ failed.\n",
2641                        qdev->ndev->name);
2642                 return -ENOMEM;
2643         }
2644
2645         qdev->rsp_q_size = NUM_RSP_Q_ENTRIES * sizeof(struct net_rsp_iocb);
2646
2647         qdev->rsp_q_virt_addr =
2648             pci_alloc_consistent(qdev->pdev,
2649                                  (size_t) qdev->rsp_q_size,
2650                                  &qdev->rsp_q_phy_addr);
2651
2652         if ((qdev->rsp_q_virt_addr == NULL) ||
2653             LS_64BITS(qdev->rsp_q_phy_addr) & (qdev->rsp_q_size - 1)) {
2654                 printk(KERN_ERR PFX
2655                        "%s: rspQ allocation failed\n",
2656                        qdev->ndev->name);
2657                 pci_free_consistent(qdev->pdev, (size_t) qdev->req_q_size,
2658                                     qdev->req_q_virt_addr,
2659                                     qdev->req_q_phy_addr);
2660                 return -ENOMEM;
2661         }
2662
2663         set_bit(QL_ALLOC_REQ_RSP_Q_DONE,&qdev->flags);
2664
2665         return 0;
2666 }
2667
2668 static void ql_free_net_req_rsp_queues(struct ql3_adapter *qdev)
2669 {
2670         if (!test_bit(QL_ALLOC_REQ_RSP_Q_DONE,&qdev->flags)) {
2671                 printk(KERN_INFO PFX
2672                        "%s: Already done.\n", qdev->ndev->name);
2673                 return;
2674         }
2675
2676         pci_free_consistent(qdev->pdev,
2677                             qdev->req_q_size,
2678                             qdev->req_q_virt_addr, qdev->req_q_phy_addr);
2679
2680         qdev->req_q_virt_addr = NULL;
2681
2682         pci_free_consistent(qdev->pdev,
2683                             qdev->rsp_q_size,
2684                             qdev->rsp_q_virt_addr, qdev->rsp_q_phy_addr);
2685
2686         qdev->rsp_q_virt_addr = NULL;
2687
2688         clear_bit(QL_ALLOC_REQ_RSP_Q_DONE,&qdev->flags);
2689 }
2690
2691 static int ql_alloc_buffer_queues(struct ql3_adapter *qdev)
2692 {
2693         /* Create Large Buffer Queue */
2694         qdev->lrg_buf_q_size =
2695             qdev->num_lbufq_entries * sizeof(struct lrg_buf_q_entry);
2696         if (qdev->lrg_buf_q_size < PAGE_SIZE)
2697                 qdev->lrg_buf_q_alloc_size = PAGE_SIZE;
2698         else
2699                 qdev->lrg_buf_q_alloc_size = qdev->lrg_buf_q_size * 2;
2700
2701         qdev->lrg_buf = kmalloc(qdev->num_large_buffers * sizeof(struct ql_rcv_buf_cb),GFP_KERNEL);
2702         if (qdev->lrg_buf == NULL) {
2703                 printk(KERN_ERR PFX
2704                        "%s: qdev->lrg_buf alloc failed.\n", qdev->ndev->name);
2705                 return -ENOMEM;
2706         }
2707
2708         qdev->lrg_buf_q_alloc_virt_addr =
2709             pci_alloc_consistent(qdev->pdev,
2710                                  qdev->lrg_buf_q_alloc_size,
2711                                  &qdev->lrg_buf_q_alloc_phy_addr);
2712
2713         if (qdev->lrg_buf_q_alloc_virt_addr == NULL) {
2714                 printk(KERN_ERR PFX
2715                        "%s: lBufQ failed\n", qdev->ndev->name);
2716                 return -ENOMEM;
2717         }
2718         qdev->lrg_buf_q_virt_addr = qdev->lrg_buf_q_alloc_virt_addr;
2719         qdev->lrg_buf_q_phy_addr = qdev->lrg_buf_q_alloc_phy_addr;
2720
2721         /* Create Small Buffer Queue */
2722         qdev->small_buf_q_size =
2723             NUM_SBUFQ_ENTRIES * sizeof(struct lrg_buf_q_entry);
2724         if (qdev->small_buf_q_size < PAGE_SIZE)
2725                 qdev->small_buf_q_alloc_size = PAGE_SIZE;
2726         else
2727                 qdev->small_buf_q_alloc_size = qdev->small_buf_q_size * 2;
2728
2729         qdev->small_buf_q_alloc_virt_addr =
2730             pci_alloc_consistent(qdev->pdev,
2731                                  qdev->small_buf_q_alloc_size,
2732                                  &qdev->small_buf_q_alloc_phy_addr);
2733
2734         if (qdev->small_buf_q_alloc_virt_addr == NULL) {
2735                 printk(KERN_ERR PFX
2736                        "%s: Small Buffer Queue allocation failed.\n",
2737                        qdev->ndev->name);
2738                 pci_free_consistent(qdev->pdev, qdev->lrg_buf_q_alloc_size,
2739                                     qdev->lrg_buf_q_alloc_virt_addr,
2740                                     qdev->lrg_buf_q_alloc_phy_addr);
2741                 return -ENOMEM;
2742         }
2743
2744         qdev->small_buf_q_virt_addr = qdev->small_buf_q_alloc_virt_addr;
2745         qdev->small_buf_q_phy_addr = qdev->small_buf_q_alloc_phy_addr;
2746         set_bit(QL_ALLOC_BUFQS_DONE,&qdev->flags);
2747         return 0;
2748 }
2749
2750 static void ql_free_buffer_queues(struct ql3_adapter *qdev)
2751 {
2752         if (!test_bit(QL_ALLOC_BUFQS_DONE,&qdev->flags)) {
2753                 printk(KERN_INFO PFX
2754                        "%s: Already done.\n", qdev->ndev->name);
2755                 return;
2756         }
2757         if(qdev->lrg_buf) kfree(qdev->lrg_buf);
2758         pci_free_consistent(qdev->pdev,
2759                             qdev->lrg_buf_q_alloc_size,
2760                             qdev->lrg_buf_q_alloc_virt_addr,
2761                             qdev->lrg_buf_q_alloc_phy_addr);
2762
2763         qdev->lrg_buf_q_virt_addr = NULL;
2764
2765         pci_free_consistent(qdev->pdev,
2766                             qdev->small_buf_q_alloc_size,
2767                             qdev->small_buf_q_alloc_virt_addr,
2768                             qdev->small_buf_q_alloc_phy_addr);
2769
2770         qdev->small_buf_q_virt_addr = NULL;
2771
2772         clear_bit(QL_ALLOC_BUFQS_DONE,&qdev->flags);
2773 }
2774
2775 static int ql_alloc_small_buffers(struct ql3_adapter *qdev)
2776 {
2777         int i;
2778         struct bufq_addr_element *small_buf_q_entry;
2779
2780         /* Currently we allocate on one of memory and use it for smallbuffers */
2781         qdev->small_buf_total_size =
2782             (QL_ADDR_ELE_PER_BUFQ_ENTRY * NUM_SBUFQ_ENTRIES *
2783              QL_SMALL_BUFFER_SIZE);
2784
2785         qdev->small_buf_virt_addr =
2786             pci_alloc_consistent(qdev->pdev,
2787                                  qdev->small_buf_total_size,
2788                                  &qdev->small_buf_phy_addr);
2789
2790         if (qdev->small_buf_virt_addr == NULL) {
2791                 printk(KERN_ERR PFX
2792                        "%s: Failed to get small buffer memory.\n",
2793                        qdev->ndev->name);
2794                 return -ENOMEM;
2795         }
2796
2797         qdev->small_buf_phy_addr_low = LS_64BITS(qdev->small_buf_phy_addr);
2798         qdev->small_buf_phy_addr_high = MS_64BITS(qdev->small_buf_phy_addr);
2799
2800         small_buf_q_entry = qdev->small_buf_q_virt_addr;
2801
2802         /* Initialize the small buffer queue. */
2803         for (i = 0; i < (QL_ADDR_ELE_PER_BUFQ_ENTRY * NUM_SBUFQ_ENTRIES); i++) {
2804                 small_buf_q_entry->addr_high =
2805                     cpu_to_le32(qdev->small_buf_phy_addr_high);
2806                 small_buf_q_entry->addr_low =
2807                     cpu_to_le32(qdev->small_buf_phy_addr_low +
2808                                 (i * QL_SMALL_BUFFER_SIZE));
2809                 small_buf_q_entry++;
2810         }
2811         qdev->small_buf_index = 0;
2812         set_bit(QL_ALLOC_SMALL_BUF_DONE,&qdev->flags);
2813         return 0;
2814 }
2815
2816 static void ql_free_small_buffers(struct ql3_adapter *qdev)
2817 {
2818         if (!test_bit(QL_ALLOC_SMALL_BUF_DONE,&qdev->flags)) {
2819                 printk(KERN_INFO PFX
2820                        "%s: Already done.\n", qdev->ndev->name);
2821                 return;
2822         }
2823         if (qdev->small_buf_virt_addr != NULL) {
2824                 pci_free_consistent(qdev->pdev,
2825                                     qdev->small_buf_total_size,
2826                                     qdev->small_buf_virt_addr,
2827                                     qdev->small_buf_phy_addr);
2828
2829                 qdev->small_buf_virt_addr = NULL;
2830         }
2831 }
2832
2833 static void ql_free_large_buffers(struct ql3_adapter *qdev)
2834 {
2835         int i = 0;
2836         struct ql_rcv_buf_cb *lrg_buf_cb;
2837
2838         for (i = 0; i < qdev->num_large_buffers; i++) {
2839                 lrg_buf_cb = &qdev->lrg_buf[i];
2840                 if (lrg_buf_cb->skb) {
2841                         dev_kfree_skb(lrg_buf_cb->skb);
2842                         pci_unmap_single(qdev->pdev,
2843                                          pci_unmap_addr(lrg_buf_cb, mapaddr),
2844                                          pci_unmap_len(lrg_buf_cb, maplen),
2845                                          PCI_DMA_FROMDEVICE);
2846                         memset(lrg_buf_cb, 0, sizeof(struct ql_rcv_buf_cb));
2847                 } else {
2848                         break;
2849                 }
2850         }
2851 }
2852
2853 static void ql_init_large_buffers(struct ql3_adapter *qdev)
2854 {
2855         int i;
2856         struct ql_rcv_buf_cb *lrg_buf_cb;
2857         struct bufq_addr_element *buf_addr_ele = qdev->lrg_buf_q_virt_addr;
2858
2859         for (i = 0; i < qdev->num_large_buffers; i++) {
2860                 lrg_buf_cb = &qdev->lrg_buf[i];
2861                 buf_addr_ele->addr_high = lrg_buf_cb->buf_phy_addr_high;
2862                 buf_addr_ele->addr_low = lrg_buf_cb->buf_phy_addr_low;
2863                 buf_addr_ele++;
2864         }
2865         qdev->lrg_buf_index = 0;
2866         qdev->lrg_buf_skb_check = 0;
2867 }
2868
2869 static int ql_alloc_large_buffers(struct ql3_adapter *qdev)
2870 {
2871         int i;
2872         struct ql_rcv_buf_cb *lrg_buf_cb;
2873         struct sk_buff *skb;
2874         dma_addr_t map;
2875         int err;
2876
2877         for (i = 0; i < qdev->num_large_buffers; i++) {
2878                 skb = netdev_alloc_skb(qdev->ndev,
2879                                        qdev->lrg_buffer_len);
2880                 if (unlikely(!skb)) {
2881                         /* Better luck next round */
2882                         printk(KERN_ERR PFX
2883                                "%s: large buff alloc failed, "
2884                                "for %d bytes at index %d.\n",
2885                                qdev->ndev->name,
2886                                qdev->lrg_buffer_len * 2, i);
2887                         ql_free_large_buffers(qdev);
2888                         return -ENOMEM;
2889                 } else {
2890
2891                         lrg_buf_cb = &qdev->lrg_buf[i];
2892                         memset(lrg_buf_cb, 0, sizeof(struct ql_rcv_buf_cb));
2893                         lrg_buf_cb->index = i;
2894                         lrg_buf_cb->skb = skb;
2895                         /*
2896                          * We save some space to copy the ethhdr from first
2897                          * buffer
2898                          */
2899                         skb_reserve(skb, QL_HEADER_SPACE);
2900                         map = pci_map_single(qdev->pdev,
2901                                              skb->data,
2902                                              qdev->lrg_buffer_len -
2903                                              QL_HEADER_SPACE,
2904                                              PCI_DMA_FROMDEVICE);
2905
2906                         err = pci_dma_mapping_error(qdev->pdev, map);
2907                         if(err) {
2908                                 printk(KERN_ERR "%s: PCI mapping failed with error: %d\n",
2909                                        qdev->ndev->name, err);
2910                                 ql_free_large_buffers(qdev);
2911                                 return -ENOMEM;
2912                         }
2913
2914                         pci_unmap_addr_set(lrg_buf_cb, mapaddr, map);
2915                         pci_unmap_len_set(lrg_buf_cb, maplen,
2916                                           qdev->lrg_buffer_len -
2917                                           QL_HEADER_SPACE);
2918                         lrg_buf_cb->buf_phy_addr_low =
2919                             cpu_to_le32(LS_64BITS(map));
2920                         lrg_buf_cb->buf_phy_addr_high =
2921                             cpu_to_le32(MS_64BITS(map));
2922                 }
2923         }
2924         return 0;
2925 }
2926
2927 static void ql_free_send_free_list(struct ql3_adapter *qdev)
2928 {
2929         struct ql_tx_buf_cb *tx_cb;
2930         int i;
2931
2932         tx_cb = &qdev->tx_buf[0];
2933         for (i = 0; i < NUM_REQ_Q_ENTRIES; i++) {
2934                 if (tx_cb->oal) {
2935                         kfree(tx_cb->oal);
2936                         tx_cb->oal = NULL;
2937                 }
2938                 tx_cb++;
2939         }
2940 }
2941
2942 static int ql_create_send_free_list(struct ql3_adapter *qdev)
2943 {
2944         struct ql_tx_buf_cb *tx_cb;
2945         int i;
2946         struct ob_mac_iocb_req *req_q_curr =
2947                                         qdev->req_q_virt_addr;
2948
2949         /* Create free list of transmit buffers */
2950         for (i = 0; i < NUM_REQ_Q_ENTRIES; i++) {
2951
2952                 tx_cb = &qdev->tx_buf[i];
2953                 tx_cb->skb = NULL;
2954                 tx_cb->queue_entry = req_q_curr;
2955                 req_q_curr++;
2956                 tx_cb->oal = kmalloc(512, GFP_KERNEL);
2957                 if (tx_cb->oal == NULL)
2958                         return -1;
2959         }
2960         return 0;
2961 }
2962
2963 static int ql_alloc_mem_resources(struct ql3_adapter *qdev)
2964 {
2965         if (qdev->ndev->mtu == NORMAL_MTU_SIZE) {
2966                 qdev->num_lbufq_entries = NUM_LBUFQ_ENTRIES;
2967                 qdev->lrg_buffer_len = NORMAL_MTU_SIZE;
2968         }
2969         else if (qdev->ndev->mtu == JUMBO_MTU_SIZE) {
2970                 /*
2971                  * Bigger buffers, so less of them.
2972                  */
2973                 qdev->num_lbufq_entries = JUMBO_NUM_LBUFQ_ENTRIES;
2974                 qdev->lrg_buffer_len = JUMBO_MTU_SIZE;
2975         } else {
2976                 printk(KERN_ERR PFX
2977                        "%s: Invalid mtu size.  Only 1500 and 9000 are accepted.\n",
2978                        qdev->ndev->name);
2979                 return -ENOMEM;
2980         }
2981         qdev->num_large_buffers = qdev->num_lbufq_entries * QL_ADDR_ELE_PER_BUFQ_ENTRY;
2982         qdev->lrg_buffer_len += VLAN_ETH_HLEN + VLAN_ID_LEN + QL_HEADER_SPACE;
2983         qdev->max_frame_size =
2984             (qdev->lrg_buffer_len - QL_HEADER_SPACE) + ETHERNET_CRC_SIZE;
2985
2986         /*
2987          * First allocate a page of shared memory and use it for shadow
2988          * locations of Network Request Queue Consumer Address Register and
2989          * Network Completion Queue Producer Index Register
2990          */
2991         qdev->shadow_reg_virt_addr =
2992             pci_alloc_consistent(qdev->pdev,
2993                                  PAGE_SIZE, &qdev->shadow_reg_phy_addr);
2994
2995         if (qdev->shadow_reg_virt_addr != NULL) {
2996                 qdev->preq_consumer_index = (u16 *) qdev->shadow_reg_virt_addr;
2997                 qdev->req_consumer_index_phy_addr_high =
2998                     MS_64BITS(qdev->shadow_reg_phy_addr);
2999                 qdev->req_consumer_index_phy_addr_low =
3000                     LS_64BITS(qdev->shadow_reg_phy_addr);
3001
3002                 qdev->prsp_producer_index =
3003                     (__le32 *) (((u8 *) qdev->preq_consumer_index) + 8);
3004                 qdev->rsp_producer_index_phy_addr_high =
3005                     qdev->req_consumer_index_phy_addr_high;
3006                 qdev->rsp_producer_index_phy_addr_low =
3007                     qdev->req_consumer_index_phy_addr_low + 8;
3008         } else {
3009                 printk(KERN_ERR PFX
3010                        "%s: shadowReg Alloc failed.\n", qdev->ndev->name);
3011                 return -ENOMEM;
3012         }
3013
3014         if (ql_alloc_net_req_rsp_queues(qdev) != 0) {
3015                 printk(KERN_ERR PFX
3016                        "%s: ql_alloc_net_req_rsp_queues failed.\n",
3017                        qdev->ndev->name);
3018                 goto err_req_rsp;
3019         }
3020
3021         if (ql_alloc_buffer_queues(qdev) != 0) {
3022                 printk(KERN_ERR PFX
3023                        "%s: ql_alloc_buffer_queues failed.\n",
3024                        qdev->ndev->name);
3025                 goto err_buffer_queues;
3026         }
3027
3028         if (ql_alloc_small_buffers(qdev) != 0) {
3029                 printk(KERN_ERR PFX
3030                        "%s: ql_alloc_small_buffers failed\n", qdev->ndev->name);
3031                 goto err_small_buffers;
3032         }
3033
3034         if (ql_alloc_large_buffers(qdev) != 0) {
3035                 printk(KERN_ERR PFX
3036                        "%s: ql_alloc_large_buffers failed\n", qdev->ndev->name);
3037                 goto err_small_buffers;
3038         }
3039
3040         /* Initialize the large buffer queue. */
3041         ql_init_large_buffers(qdev);
3042         if (ql_create_send_free_list(qdev))
3043                 goto err_free_list;
3044
3045         qdev->rsp_current = qdev->rsp_q_virt_addr;
3046
3047         return 0;
3048 err_free_list:
3049         ql_free_send_free_list(qdev);
3050 err_small_buffers:
3051         ql_free_buffer_queues(qdev);
3052 err_buffer_queues:
3053         ql_free_net_req_rsp_queues(qdev);
3054 err_req_rsp:
3055         pci_free_consistent(qdev->pdev,
3056                             PAGE_SIZE,
3057                             qdev->shadow_reg_virt_addr,
3058                             qdev->shadow_reg_phy_addr);
3059
3060         return -ENOMEM;
3061 }
3062
3063 static void ql_free_mem_resources(struct ql3_adapter *qdev)
3064 {
3065         ql_free_send_free_list(qdev);
3066         ql_free_large_buffers(qdev);
3067         ql_free_small_buffers(qdev);
3068         ql_free_buffer_queues(qdev);
3069         ql_free_net_req_rsp_queues(qdev);
3070         if (qdev->shadow_reg_virt_addr != NULL) {
3071                 pci_free_consistent(qdev->pdev,
3072                                     PAGE_SIZE,
3073                                     qdev->shadow_reg_virt_addr,
3074                                     qdev->shadow_reg_phy_addr);
3075                 qdev->shadow_reg_virt_addr = NULL;
3076         }
3077 }
3078
3079 static int ql_init_misc_registers(struct ql3_adapter *qdev)
3080 {
3081         struct ql3xxx_local_ram_registers __iomem *local_ram =
3082             (void __iomem *)qdev->mem_map_registers;
3083
3084         if(ql_sem_spinlock(qdev, QL_DDR_RAM_SEM_MASK,
3085                         (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
3086                          2) << 4))
3087                 return -1;
3088
3089         ql_write_page2_reg(qdev,
3090                            &local_ram->bufletSize, qdev->nvram_data.bufletSize);
3091
3092         ql_write_page2_reg(qdev,
3093                            &local_ram->maxBufletCount,
3094                            qdev->nvram_data.bufletCount);
3095
3096         ql_write_page2_reg(qdev,
3097                            &local_ram->freeBufletThresholdLow,
3098                            (qdev->nvram_data.tcpWindowThreshold25 << 16) |
3099                            (qdev->nvram_data.tcpWindowThreshold0));
3100
3101         ql_write_page2_reg(qdev,
3102                            &local_ram->freeBufletThresholdHigh,
3103                            qdev->nvram_data.tcpWindowThreshold50);
3104
3105         ql_write_page2_reg(qdev,
3106                            &local_ram->ipHashTableBase,
3107                            (qdev->nvram_data.ipHashTableBaseHi << 16) |
3108                            qdev->nvram_data.ipHashTableBaseLo);
3109         ql_write_page2_reg(qdev,
3110                            &local_ram->ipHashTableCount,
3111                            qdev->nvram_data.ipHashTableSize);
3112         ql_write_page2_reg(qdev,
3113                            &local_ram->tcpHashTableBase,
3114                            (qdev->nvram_data.tcpHashTableBaseHi << 16) |
3115                            qdev->nvram_data.tcpHashTableBaseLo);
3116         ql_write_page2_reg(qdev,
3117                            &local_ram->tcpHashTableCount,
3118                            qdev->nvram_data.tcpHashTableSize);
3119         ql_write_page2_reg(qdev,
3120                            &local_ram->ncbBase,
3121                            (qdev->nvram_data.ncbTableBaseHi << 16) |
3122                            qdev->nvram_data.ncbTableBaseLo);
3123         ql_write_page2_reg(qdev,
3124                            &local_ram->maxNcbCount,
3125                            qdev->nvram_data.ncbTableSize);
3126         ql_write_page2_reg(qdev,
3127                            &local_ram->drbBase,
3128                            (qdev->nvram_data.drbTableBaseHi << 16) |
3129                            qdev->nvram_data.drbTableBaseLo);
3130         ql_write_page2_reg(qdev,
3131                            &local_ram->maxDrbCount,
3132                            qdev->nvram_data.drbTableSize);
3133         ql_sem_unlock(qdev, QL_DDR_RAM_SEM_MASK);
3134         return 0;
3135 }
3136
3137 static int ql_adapter_initialize(struct ql3_adapter *qdev)
3138 {
3139         u32 value;
3140         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
3141         struct ql3xxx_host_memory_registers __iomem *hmem_regs =
3142                                                 (void __iomem *)port_regs;
3143         u32 delay = 10;
3144         int status = 0;
3145         unsigned long hw_flags = 0;
3146
3147         if(ql_mii_setup(qdev))
3148                 return -1;
3149
3150         /* Bring out PHY out of reset */
3151         ql_write_common_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
3152                             (ISP_SERIAL_PORT_IF_WE |
3153                              (ISP_SERIAL_PORT_IF_WE << 16)));
3154         /* Give the PHY time to come out of reset. */
3155         mdelay(100);
3156         qdev->port_link_state = LS_DOWN;
3157         netif_carrier_off(qdev->ndev);
3158
3159         /* V2 chip fix for ARS-39168. */
3160         ql_write_common_reg(qdev, &port_regs->CommonRegs.serialPortInterfaceReg,
3161                             (ISP_SERIAL_PORT_IF_SDE |
3162                              (ISP_SERIAL_PORT_IF_SDE << 16)));
3163
3164         /* Request Queue Registers */
3165         *((u32 *) (qdev->preq_consumer_index)) = 0;
3166         atomic_set(&qdev->tx_count,NUM_REQ_Q_ENTRIES);
3167         qdev->req_producer_index = 0;
3168
3169         ql_write_page1_reg(qdev,
3170                            &hmem_regs->reqConsumerIndexAddrHigh,
3171                            qdev->req_consumer_index_phy_addr_high);
3172         ql_write_page1_reg(qdev,
3173                            &hmem_regs->reqConsumerIndexAddrLow,
3174                            qdev->req_consumer_index_phy_addr_low);
3175
3176         ql_write_page1_reg(qdev,
3177                            &hmem_regs->reqBaseAddrHigh,
3178                            MS_64BITS(qdev->req_q_phy_addr));
3179         ql_write_page1_reg(qdev,
3180                            &hmem_regs->reqBaseAddrLow,
3181                            LS_64BITS(qdev->req_q_phy_addr));
3182         ql_write_page1_reg(qdev, &hmem_regs->reqLength, NUM_REQ_Q_ENTRIES);
3183
3184         /* Response Queue Registers */
3185         *((__le16 *) (qdev->prsp_producer_index)) = 0;
3186         qdev->rsp_consumer_index = 0;
3187         qdev->rsp_current = qdev->rsp_q_virt_addr;
3188
3189         ql_write_page1_reg(qdev,
3190                            &hmem_regs->rspProducerIndexAddrHigh,
3191                            qdev->rsp_producer_index_phy_addr_high);
3192
3193         ql_write_page1_reg(qdev,
3194                            &hmem_regs->rspProducerIndexAddrLow,
3195                            qdev->rsp_producer_index_phy_addr_low);
3196
3197         ql_write_page1_reg(qdev,
3198                            &hmem_regs->rspBaseAddrHigh,
3199                            MS_64BITS(qdev->rsp_q_phy_addr));
3200
3201         ql_write_page1_reg(qdev,
3202                            &hmem_regs->rspBaseAddrLow,
3203                            LS_64BITS(qdev->rsp_q_phy_addr));
3204
3205         ql_write_page1_reg(qdev, &hmem_regs->rspLength, NUM_RSP_Q_ENTRIES);
3206
3207         /* Large Buffer Queue */
3208         ql_write_page1_reg(qdev,
3209                            &hmem_regs->rxLargeQBaseAddrHigh,
3210                            MS_64BITS(qdev->lrg_buf_q_phy_addr));
3211
3212         ql_write_page1_reg(qdev,
3213                            &hmem_regs->rxLargeQBaseAddrLow,
3214                            LS_64BITS(qdev->lrg_buf_q_phy_addr));
3215
3216         ql_write_page1_reg(qdev, &hmem_regs->rxLargeQLength, qdev->num_lbufq_entries);
3217
3218         ql_write_page1_reg(qdev,
3219                            &hmem_regs->rxLargeBufferLength,
3220                            qdev->lrg_buffer_len);
3221
3222         /* Small Buffer Queue */
3223         ql_write_page1_reg(qdev,
3224                            &hmem_regs->rxSmallQBaseAddrHigh,
3225                            MS_64BITS(qdev->small_buf_q_phy_addr));
3226
3227         ql_write_page1_reg(qdev,
3228                            &hmem_regs->rxSmallQBaseAddrLow,
3229                            LS_64BITS(qdev->small_buf_q_phy_addr));
3230
3231         ql_write_page1_reg(qdev, &hmem_regs->rxSmallQLength, NUM_SBUFQ_ENTRIES);
3232         ql_write_page1_reg(qdev,
3233                            &hmem_regs->rxSmallBufferLength,
3234                            QL_SMALL_BUFFER_SIZE);
3235
3236         qdev->small_buf_q_producer_index = NUM_SBUFQ_ENTRIES - 1;
3237         qdev->small_buf_release_cnt = 8;
3238         qdev->lrg_buf_q_producer_index = qdev->num_lbufq_entries - 1;
3239         qdev->lrg_buf_release_cnt = 8;
3240         qdev->lrg_buf_next_free =
3241             (struct bufq_addr_element *)qdev->lrg_buf_q_virt_addr;
3242         qdev->small_buf_index = 0;
3243         qdev->lrg_buf_index = 0;
3244         qdev->lrg_buf_free_count = 0;
3245         qdev->lrg_buf_free_head = NULL;
3246         qdev->lrg_buf_free_tail = NULL;
3247
3248         ql_write_common_reg(qdev,
3249                             &port_regs->CommonRegs.
3250                             rxSmallQProducerIndex,
3251                             qdev->small_buf_q_producer_index);
3252         ql_write_common_reg(qdev,
3253                             &port_regs->CommonRegs.
3254                             rxLargeQProducerIndex,
3255                             qdev->lrg_buf_q_producer_index);
3256
3257         /*
3258          * Find out if the chip has already been initialized.  If it has, then
3259          * we skip some of the initialization.
3260          */
3261         clear_bit(QL_LINK_MASTER, &qdev->flags);
3262         value = ql_read_page0_reg(qdev, &port_regs->portStatus);
3263         if ((value & PORT_STATUS_IC) == 0) {
3264
3265                 /* Chip has not been configured yet, so let it rip. */
3266                 if(ql_init_misc_registers(qdev)) {
3267                         status = -1;
3268                         goto out;
3269                 }
3270
3271                 value = qdev->nvram_data.tcpMaxWindowSize;
3272                 ql_write_page0_reg(qdev, &port_regs->tcpMaxWindow, value);
3273
3274                 value = (0xFFFF << 16) | qdev->nvram_data.extHwConfig;
3275
3276                 if(ql_sem_spinlock(qdev, QL_FLASH_SEM_MASK,
3277                                 (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index)
3278                                  * 2) << 13)) {
3279                         status = -1;
3280                         goto out;
3281                 }
3282                 ql_write_page0_reg(qdev, &port_regs->ExternalHWConfig, value);
3283                 ql_write_page0_reg(qdev, &port_regs->InternalChipConfig,
3284                                    (((INTERNAL_CHIP_SD | INTERNAL_CHIP_WE) <<
3285                                      16) | (INTERNAL_CHIP_SD |
3286                                             INTERNAL_CHIP_WE)));
3287                 ql_sem_unlock(qdev, QL_FLASH_SEM_MASK);
3288         }
3289
3290         if (qdev->mac_index)
3291                 ql_write_page0_reg(qdev,
3292                                    &port_regs->mac1MaxFrameLengthReg,
3293                                    qdev->max_frame_size);
3294         else
3295                 ql_write_page0_reg(qdev,
3296                                            &port_regs->mac0MaxFrameLengthReg,
3297                                            qdev->max_frame_size);
3298
3299         if(ql_sem_spinlock(qdev, QL_PHY_GIO_SEM_MASK,
3300                         (QL_RESOURCE_BITS_BASE_CODE | (qdev->mac_index) *
3301                          2) << 7)) {
3302                 status = -1;
3303                 goto out;
3304         }
3305
3306         PHY_Setup(qdev);
3307         ql_init_scan_mode(qdev);
3308         ql_get_phy_owner(qdev);
3309
3310         /* Load the MAC Configuration */
3311
3312         /* Program lower 32 bits of the MAC address */
3313         ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
3314                            (MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16));
3315         ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
3316                            ((qdev->ndev->dev_addr[2] << 24)
3317                             | (qdev->ndev->dev_addr[3] << 16)
3318                             | (qdev->ndev->dev_addr[4] << 8)
3319                             | qdev->ndev->dev_addr[5]));
3320
3321         /* Program top 16 bits of the MAC address */
3322         ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
3323                            ((MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16) | 1));
3324         ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
3325                            ((qdev->ndev->dev_addr[0] << 8)
3326                             | qdev->ndev->dev_addr[1]));
3327
3328         /* Enable Primary MAC */
3329         ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
3330                            ((MAC_ADDR_INDIRECT_PTR_REG_PE << 16) |
3331                             MAC_ADDR_INDIRECT_PTR_REG_PE));
3332
3333         /* Clear Primary and Secondary IP addresses */
3334         ql_write_page0_reg(qdev, &port_regs->ipAddrIndexReg,
3335                            ((IP_ADDR_INDEX_REG_MASK << 16) |
3336                             (qdev->mac_index << 2)));
3337         ql_write_page0_reg(qdev, &port_regs->ipAddrDataReg, 0);
3338
3339         ql_write_page0_reg(qdev, &port_regs->ipAddrIndexReg,
3340                            ((IP_ADDR_INDEX_REG_MASK << 16) |
3341                             ((qdev->mac_index << 2) + 1)));
3342         ql_write_page0_reg(qdev, &port_regs->ipAddrDataReg, 0);
3343
3344         ql_sem_unlock(qdev, QL_PHY_GIO_SEM_MASK);
3345
3346         /* Indicate Configuration Complete */
3347         ql_write_page0_reg(qdev,
3348                            &port_regs->portControl,
3349                            ((PORT_CONTROL_CC << 16) | PORT_CONTROL_CC));
3350
3351         do {
3352                 value = ql_read_page0_reg(qdev, &port_regs->portStatus);
3353                 if (value & PORT_STATUS_IC)
3354                         break;
3355                 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3356                 msleep(500);
3357                 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3358         } while (--delay);
3359
3360         if (delay == 0) {
3361                 printk(KERN_ERR PFX
3362                        "%s: Hw Initialization timeout.\n", qdev->ndev->name);
3363                 status = -1;
3364                 goto out;
3365         }
3366
3367         /* Enable Ethernet Function */
3368         if (qdev->device_id == QL3032_DEVICE_ID) {
3369                 value =
3370                     (QL3032_PORT_CONTROL_EF | QL3032_PORT_CONTROL_KIE |
3371                      QL3032_PORT_CONTROL_EIv6 | QL3032_PORT_CONTROL_EIv4 |
3372                         QL3032_PORT_CONTROL_ET);
3373                 ql_write_page0_reg(qdev, &port_regs->functionControl,
3374                                    ((value << 16) | value));
3375         } else {
3376                 value =
3377                     (PORT_CONTROL_EF | PORT_CONTROL_ET | PORT_CONTROL_EI |
3378                      PORT_CONTROL_HH);
3379                 ql_write_page0_reg(qdev, &port_regs->portControl,
3380                                    ((value << 16) | value));
3381         }
3382
3383
3384 out:
3385         return status;
3386 }
3387
3388 /*
3389  * Caller holds hw_lock.
3390  */
3391 static int ql_adapter_reset(struct ql3_adapter *qdev)
3392 {
3393         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
3394         int status = 0;
3395         u16 value;
3396         int max_wait_time;
3397
3398         set_bit(QL_RESET_ACTIVE, &qdev->flags);
3399         clear_bit(QL_RESET_DONE, &qdev->flags);
3400
3401         /*
3402          * Issue soft reset to chip.
3403          */
3404         printk(KERN_DEBUG PFX
3405                "%s: Issue soft reset to chip.\n",
3406                qdev->ndev->name);
3407         ql_write_common_reg(qdev,
3408                             &port_regs->CommonRegs.ispControlStatus,
3409                             ((ISP_CONTROL_SR << 16) | ISP_CONTROL_SR));
3410
3411         /* Wait 3 seconds for reset to complete. */
3412         printk(KERN_DEBUG PFX
3413                "%s: Wait 10 milliseconds for reset to complete.\n",
3414                qdev->ndev->name);
3415
3416         /* Wait until the firmware tells us the Soft Reset is done */
3417         max_wait_time = 5;
3418         do {
3419                 value =
3420                     ql_read_common_reg(qdev,
3421                                        &port_regs->CommonRegs.ispControlStatus);
3422                 if ((value & ISP_CONTROL_SR) == 0)
3423                         break;
3424
3425                 ssleep(1);
3426         } while ((--max_wait_time));
3427
3428         /*
3429          * Also, make sure that the Network Reset Interrupt bit has been
3430          * cleared after the soft reset has taken place.
3431          */
3432         value =
3433             ql_read_common_reg(qdev, &port_regs->CommonRegs.ispControlStatus);
3434         if (value & ISP_CONTROL_RI) {
3435                 printk(KERN_DEBUG PFX
3436                        "ql_adapter_reset: clearing RI after reset.\n");
3437                 ql_write_common_reg(qdev,
3438                                     &port_regs->CommonRegs.
3439                                     ispControlStatus,
3440                                     ((ISP_CONTROL_RI << 16) | ISP_CONTROL_RI));
3441         }
3442
3443         if (max_wait_time == 0) {
3444                 /* Issue Force Soft Reset */
3445                 ql_write_common_reg(qdev,
3446                                     &port_regs->CommonRegs.
3447                                     ispControlStatus,
3448                                     ((ISP_CONTROL_FSR << 16) |
3449                                      ISP_CONTROL_FSR));
3450                 /*
3451                  * Wait until the firmware tells us the Force Soft Reset is
3452                  * done
3453                  */
3454                 max_wait_time = 5;
3455                 do {
3456                         value =
3457                             ql_read_common_reg(qdev,
3458                                                &port_regs->CommonRegs.
3459                                                ispControlStatus);
3460                         if ((value & ISP_CONTROL_FSR) == 0) {
3461                                 break;
3462                         }
3463                         ssleep(1);
3464                 } while ((--max_wait_time));
3465         }
3466         if (max_wait_time == 0)
3467                 status = 1;
3468
3469         clear_bit(QL_RESET_ACTIVE, &qdev->flags);
3470         set_bit(QL_RESET_DONE, &qdev->flags);
3471         return status;
3472 }
3473
3474 static void ql_set_mac_info(struct ql3_adapter *qdev)
3475 {
3476         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
3477         u32 value, port_status;
3478         u8 func_number;
3479
3480         /* Get the function number */
3481         value =
3482             ql_read_common_reg_l(qdev, &port_regs->CommonRegs.ispControlStatus);
3483         func_number = (u8) ((value >> 4) & OPCODE_FUNC_ID_MASK);
3484         port_status = ql_read_page0_reg(qdev, &port_regs->portStatus);
3485         switch (value & ISP_CONTROL_FN_MASK) {
3486         case ISP_CONTROL_FN0_NET:
3487                 qdev->mac_index = 0;
3488                 qdev->mac_ob_opcode = OUTBOUND_MAC_IOCB | func_number;
3489                 qdev->mb_bit_mask = FN0_MA_BITS_MASK;
3490                 qdev->PHYAddr = PORT0_PHY_ADDRESS;
3491                 if (port_status & PORT_STATUS_SM0)
3492                         set_bit(QL_LINK_OPTICAL,&qdev->flags);
3493                 else
3494                         clear_bit(QL_LINK_OPTICAL,&qdev->flags);
3495                 break;
3496
3497         case ISP_CONTROL_FN1_NET:
3498                 qdev->mac_index = 1;
3499                 qdev->mac_ob_opcode = OUTBOUND_MAC_IOCB | func_number;
3500                 qdev->mb_bit_mask = FN1_MA_BITS_MASK;
3501                 qdev->PHYAddr = PORT1_PHY_ADDRESS;
3502                 if (port_status & PORT_STATUS_SM1)
3503                         set_bit(QL_LINK_OPTICAL,&qdev->flags);
3504                 else
3505                         clear_bit(QL_LINK_OPTICAL,&qdev->flags);
3506                 break;
3507
3508         case ISP_CONTROL_FN0_SCSI:
3509         case ISP_CONTROL_FN1_SCSI:
3510         default:
3511                 printk(KERN_DEBUG PFX
3512                        "%s: Invalid function number, ispControlStatus = 0x%x\n",
3513                        qdev->ndev->name,value);
3514                 break;
3515         }
3516         qdev->numPorts = qdev->nvram_data.version_and_numPorts >> 8;
3517 }
3518
3519 static void ql_display_dev_info(struct net_device *ndev)
3520 {
3521         struct ql3_adapter *qdev = (struct ql3_adapter *)netdev_priv(ndev);
3522         struct pci_dev *pdev = qdev->pdev;
3523
3524         printk(KERN_INFO PFX
3525                "\n%s Adapter %d RevisionID %d found %s on PCI slot %d.\n",
3526                DRV_NAME, qdev->index, qdev->chip_rev_id,
3527                (qdev->device_id == QL3032_DEVICE_ID) ? "QLA3032" : "QLA3022",
3528                qdev->pci_slot);
3529         printk(KERN_INFO PFX
3530                "%s Interface.\n",
3531                test_bit(QL_LINK_OPTICAL,&qdev->flags) ? "OPTICAL" : "COPPER");
3532
3533         /*
3534          * Print PCI bus width/type.
3535          */
3536         printk(KERN_INFO PFX
3537                "Bus interface is %s %s.\n",
3538                ((qdev->pci_width == 64) ? "64-bit" : "32-bit"),
3539                ((qdev->pci_x) ? "PCI-X" : "PCI"));
3540
3541         printk(KERN_INFO PFX
3542                "mem  IO base address adjusted = 0x%p\n",
3543                qdev->mem_map_registers);
3544         printk(KERN_INFO PFX "Interrupt number = %d\n", pdev->irq);
3545
3546         if (netif_msg_probe(qdev))
3547                 printk(KERN_INFO PFX
3548                        "%s: MAC address %pM\n",
3549                        ndev->name, ndev->dev_addr);
3550 }
3551
3552 static int ql_adapter_down(struct ql3_adapter *qdev, int do_reset)
3553 {
3554         struct net_device *ndev = qdev->ndev;
3555         int retval = 0;
3556
3557         netif_stop_queue(ndev);
3558         netif_carrier_off(ndev);
3559
3560         clear_bit(QL_ADAPTER_UP,&qdev->flags);
3561         clear_bit(QL_LINK_MASTER,&qdev->flags);
3562
3563         ql_disable_interrupts(qdev);
3564
3565         free_irq(qdev->pdev->irq, ndev);
3566
3567         if (qdev->msi && test_bit(QL_MSI_ENABLED,&qdev->flags)) {
3568                 printk(KERN_INFO PFX
3569                        "%s: calling pci_disable_msi().\n", qdev->ndev->name);
3570                 clear_bit(QL_MSI_ENABLED,&qdev->flags);
3571                 pci_disable_msi(qdev->pdev);
3572         }
3573
3574         del_timer_sync(&qdev->adapter_timer);
3575
3576         napi_disable(&qdev->napi);
3577
3578         if (do_reset) {
3579                 int soft_reset;
3580                 unsigned long hw_flags;
3581
3582                 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3583                 if (ql_wait_for_drvr_lock(qdev)) {
3584                         if ((soft_reset = ql_adapter_reset(qdev))) {
3585                                 printk(KERN_ERR PFX
3586                                        "%s: ql_adapter_reset(%d) FAILED!\n",
3587                                        ndev->name, qdev->index);
3588                         }
3589                         printk(KERN_ERR PFX
3590                                 "%s: Releaseing driver lock via chip reset.\n",ndev->name);
3591                 } else {
3592                         printk(KERN_ERR PFX
3593                                "%s: Could not acquire driver lock to do "
3594                                "reset!\n", ndev->name);
3595                         retval = -1;
3596                 }
3597                 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3598         }
3599         ql_free_mem_resources(qdev);
3600         return retval;
3601 }
3602
3603 static int ql_adapter_up(struct ql3_adapter *qdev)
3604 {
3605         struct net_device *ndev = qdev->ndev;
3606         int err;
3607         unsigned long irq_flags = IRQF_SAMPLE_RANDOM | IRQF_SHARED;
3608         unsigned long hw_flags;
3609
3610         if (ql_alloc_mem_resources(qdev)) {
3611                 printk(KERN_ERR PFX
3612                        "%s Unable to  allocate buffers.\n", ndev->name);
3613                 return -ENOMEM;
3614         }
3615
3616         if (qdev->msi) {
3617                 if (pci_enable_msi(qdev->pdev)) {
3618                         printk(KERN_ERR PFX
3619                                "%s: User requested MSI, but MSI failed to "
3620                                "initialize.  Continuing without MSI.\n",
3621                                qdev->ndev->name);
3622                         qdev->msi = 0;
3623                 } else {
3624                         printk(KERN_INFO PFX "%s: MSI Enabled...\n", qdev->ndev->name);
3625                         set_bit(QL_MSI_ENABLED,&qdev->flags);
3626                         irq_flags &= ~IRQF_SHARED;
3627                 }
3628         }
3629
3630         if ((err = request_irq(qdev->pdev->irq,
3631                                ql3xxx_isr,
3632                                irq_flags, ndev->name, ndev))) {
3633                 printk(KERN_ERR PFX
3634                        "%s: Failed to reserve interrupt %d already in use.\n",
3635                        ndev->name, qdev->pdev->irq);
3636                 goto err_irq;
3637         }
3638
3639         spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3640
3641         if ((err = ql_wait_for_drvr_lock(qdev))) {
3642                 if ((err = ql_adapter_initialize(qdev))) {
3643                         printk(KERN_ERR PFX
3644                                "%s: Unable to initialize adapter.\n",
3645                                ndev->name);
3646                         goto err_init;
3647                 }
3648                 printk(KERN_ERR PFX
3649                                 "%s: Releaseing driver lock.\n",ndev->name);
3650                 ql_sem_unlock(qdev, QL_DRVR_SEM_MASK);
3651         } else {
3652                 printk(KERN_ERR PFX
3653                        "%s: Could not aquire driver lock.\n",
3654                        ndev->name);
3655                 goto err_lock;
3656         }
3657
3658         spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3659
3660         set_bit(QL_ADAPTER_UP,&qdev->flags);
3661
3662         mod_timer(&qdev->adapter_timer, jiffies + HZ * 1);
3663
3664         napi_enable(&qdev->napi);
3665         ql_enable_interrupts(qdev);
3666         return 0;
3667
3668 err_init:
3669         ql_sem_unlock(qdev, QL_DRVR_SEM_MASK);
3670 err_lock:
3671         spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3672         free_irq(qdev->pdev->irq, ndev);
3673 err_irq:
3674         if (qdev->msi && test_bit(QL_MSI_ENABLED,&qdev->flags)) {
3675                 printk(KERN_INFO PFX
3676                        "%s: calling pci_disable_msi().\n",
3677                        qdev->ndev->name);
3678                 clear_bit(QL_MSI_ENABLED,&qdev->flags);
3679                 pci_disable_msi(qdev->pdev);
3680         }
3681         return err;
3682 }
3683
3684 static int ql_cycle_adapter(struct ql3_adapter *qdev, int reset)
3685 {
3686         if( ql_adapter_down(qdev,reset) || ql_adapter_up(qdev)) {
3687                 printk(KERN_ERR PFX
3688                                 "%s: Driver up/down cycle failed, "
3689                                 "closing device\n",qdev->ndev->name);
3690                 rtnl_lock();
3691                 dev_close(qdev->ndev);
3692                 rtnl_unlock();
3693                 return -1;
3694         }
3695         return 0;
3696 }
3697
3698 static int ql3xxx_close(struct net_device *ndev)
3699 {
3700         struct ql3_adapter *qdev = netdev_priv(ndev);
3701
3702         /*
3703          * Wait for device to recover from a reset.
3704          * (Rarely happens, but possible.)
3705          */
3706         while (!test_bit(QL_ADAPTER_UP,&qdev->flags))
3707                 msleep(50);
3708
3709         ql_adapter_down(qdev,QL_DO_RESET);
3710         return 0;
3711 }
3712
3713 static int ql3xxx_open(struct net_device *ndev)
3714 {
3715         struct ql3_adapter *qdev = netdev_priv(ndev);
3716         return (ql_adapter_up(qdev));
3717 }
3718
3719 static int ql3xxx_set_mac_address(struct net_device *ndev, void *p)
3720 {
3721         struct ql3_adapter *qdev = (struct ql3_adapter *)netdev_priv(ndev);
3722         struct ql3xxx_port_registers __iomem *port_regs =
3723                         qdev->mem_map_registers;
3724         struct sockaddr *addr = p;
3725         unsigned long hw_flags;
3726
3727         if (netif_running(ndev))
3728                 return -EBUSY;
3729
3730         if (!is_valid_ether_addr(addr->sa_data))
3731                 return -EADDRNOTAVAIL;
3732
3733         memcpy(ndev->dev_addr, addr->sa_data, ndev->addr_len);
3734
3735         spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3736         /* Program lower 32 bits of the MAC address */
3737         ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
3738                            (MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16));
3739         ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
3740                            ((ndev->dev_addr[2] << 24) | (ndev->
3741                                                          dev_addr[3] << 16) |
3742                             (ndev->dev_addr[4] << 8) | ndev->dev_addr[5]));
3743
3744         /* Program top 16 bits of the MAC address */
3745         ql_write_page0_reg(qdev, &port_regs->macAddrIndirectPtrReg,
3746                            ((MAC_ADDR_INDIRECT_PTR_REG_RP_MASK << 16) | 1));
3747         ql_write_page0_reg(qdev, &port_regs->macAddrDataReg,
3748                            ((ndev->dev_addr[0] << 8) | ndev->dev_addr[1]));
3749         spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3750
3751         return 0;
3752 }
3753
3754 static void ql3xxx_tx_timeout(struct net_device *ndev)
3755 {
3756         struct ql3_adapter *qdev = (struct ql3_adapter *)netdev_priv(ndev);
3757
3758         printk(KERN_ERR PFX "%s: Resetting...\n", ndev->name);
3759         /*
3760          * Stop the queues, we've got a problem.
3761          */
3762         netif_stop_queue(ndev);
3763
3764         /*
3765          * Wake up the worker to process this event.
3766          */
3767         queue_delayed_work(qdev->workqueue, &qdev->tx_timeout_work, 0);
3768 }
3769
3770 static void ql_reset_work(struct work_struct *work)
3771 {
3772         struct ql3_adapter *qdev =
3773                 container_of(work, struct ql3_adapter, reset_work.work);
3774         struct net_device *ndev = qdev->ndev;
3775         u32 value;
3776         struct ql_tx_buf_cb *tx_cb;
3777         int max_wait_time, i;
3778         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
3779         unsigned long hw_flags;
3780
3781         if (test_bit((QL_RESET_PER_SCSI | QL_RESET_START),&qdev->flags)) {
3782                 clear_bit(QL_LINK_MASTER,&qdev->flags);
3783
3784                 /*
3785                  * Loop through the active list and return the skb.
3786                  */
3787                 for (i = 0; i < NUM_REQ_Q_ENTRIES; i++) {
3788                         int j;
3789                         tx_cb = &qdev->tx_buf[i];
3790                         if (tx_cb->skb) {
3791                                 printk(KERN_DEBUG PFX
3792                                        "%s: Freeing lost SKB.\n",
3793                                        qdev->ndev->name);
3794                                 pci_unmap_single(qdev->pdev,
3795                                          pci_unmap_addr(&tx_cb->map[0], mapaddr),
3796                                          pci_unmap_len(&tx_cb->map[0], maplen),
3797                                          PCI_DMA_TODEVICE);
3798                                 for(j=1;j<tx_cb->seg_count;j++) {
3799                                         pci_unmap_page(qdev->pdev,
3800                                                pci_unmap_addr(&tx_cb->map[j],mapaddr),
3801                                                pci_unmap_len(&tx_cb->map[j],maplen),
3802                                                PCI_DMA_TODEVICE);
3803                                 }
3804                                 dev_kfree_skb(tx_cb->skb);
3805                                 tx_cb->skb = NULL;
3806                         }
3807                 }
3808
3809                 printk(KERN_ERR PFX
3810                        "%s: Clearing NRI after reset.\n", qdev->ndev->name);
3811                 spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3812                 ql_write_common_reg(qdev,
3813                                     &port_regs->CommonRegs.
3814                                     ispControlStatus,
3815                                     ((ISP_CONTROL_RI << 16) | ISP_CONTROL_RI));
3816                 /*
3817                  * Wait the for Soft Reset to Complete.
3818                  */
3819                 max_wait_time = 10;
3820                 do {
3821                         value = ql_read_common_reg(qdev,
3822                                                    &port_regs->CommonRegs.
3823
3824                                                    ispControlStatus);
3825                         if ((value & ISP_CONTROL_SR) == 0) {
3826                                 printk(KERN_DEBUG PFX
3827                                        "%s: reset completed.\n",
3828                                        qdev->ndev->name);
3829                                 break;
3830                         }
3831
3832                         if (value & ISP_CONTROL_RI) {
3833                                 printk(KERN_DEBUG PFX
3834                                        "%s: clearing NRI after reset.\n",
3835                                        qdev->ndev->name);
3836                                 ql_write_common_reg(qdev,
3837                                                     &port_regs->
3838                                                     CommonRegs.
3839                                                     ispControlStatus,
3840                                                     ((ISP_CONTROL_RI <<
3841                                                       16) | ISP_CONTROL_RI));
3842                         }
3843
3844                         spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3845                         ssleep(1);
3846                         spin_lock_irqsave(&qdev->hw_lock, hw_flags);
3847                 } while (--max_wait_time);
3848                 spin_unlock_irqrestore(&qdev->hw_lock, hw_flags);
3849
3850                 if (value & ISP_CONTROL_SR) {
3851
3852                         /*
3853                          * Set the reset flags and clear the board again.
3854                          * Nothing else to do...
3855                          */
3856                         printk(KERN_ERR PFX
3857                                "%s: Timed out waiting for reset to "
3858                                "complete.\n", ndev->name);
3859                         printk(KERN_ERR PFX
3860                                "%s: Do a reset.\n", ndev->name);
3861                         clear_bit(QL_RESET_PER_SCSI,&qdev->flags);
3862                         clear_bit(QL_RESET_START,&qdev->flags);
3863                         ql_cycle_adapter(qdev,QL_DO_RESET);
3864                         return;
3865                 }
3866
3867                 clear_bit(QL_RESET_ACTIVE,&qdev->flags);
3868                 clear_bit(QL_RESET_PER_SCSI,&qdev->flags);
3869                 clear_bit(QL_RESET_START,&qdev->flags);
3870                 ql_cycle_adapter(qdev,QL_NO_RESET);
3871         }
3872 }
3873
3874 static void ql_tx_timeout_work(struct work_struct *work)
3875 {
3876         struct ql3_adapter *qdev =
3877                 container_of(work, struct ql3_adapter, tx_timeout_work.work);
3878
3879         ql_cycle_adapter(qdev, QL_DO_RESET);
3880 }
3881
3882 static void ql_get_board_info(struct ql3_adapter *qdev)
3883 {
3884         struct ql3xxx_port_registers __iomem *port_regs = qdev->mem_map_registers;
3885         u32 value;
3886
3887         value = ql_read_page0_reg_l(qdev, &port_regs->portStatus);
3888
3889         qdev->chip_rev_id = ((value & PORT_STATUS_REV_ID_MASK) >> 12);
3890         if (value & PORT_STATUS_64)
3891                 qdev->pci_width = 64;
3892         else
3893                 qdev->pci_width = 32;
3894         if (value & PORT_STATUS_X)
3895                 qdev->pci_x = 1;
3896         else
3897                 qdev->pci_x = 0;
3898         qdev->pci_slot = (u8) PCI_SLOT(qdev->pdev->devfn);
3899 }
3900
3901 static void ql3xxx_timer(unsigned long ptr)
3902 {
3903         struct ql3_adapter *qdev = (struct ql3_adapter *)ptr;
3904         queue_delayed_work(qdev->workqueue, &qdev->link_state_work, 0);
3905 }
3906
3907 static const struct net_device_ops ql3xxx_netdev_ops = {
3908         .ndo_open               = ql3xxx_open,
3909         .ndo_start_xmit         = ql3xxx_send,
3910         .ndo_stop               = ql3xxx_close,
3911         .ndo_set_multicast_list = NULL, /* not allowed on NIC side */
3912         .ndo_change_mtu         = eth_change_mtu,
3913         .ndo_validate_addr      = eth_validate_addr,
3914         .ndo_set_mac_address    = ql3xxx_set_mac_address,
3915         .ndo_tx_timeout         = ql3xxx_tx_timeout,
3916 };
3917
3918 static int __devinit ql3xxx_probe(struct pci_dev *pdev,
3919                                   const struct pci_device_id *pci_entry)
3920 {
3921         struct net_device *ndev = NULL;
3922         struct ql3_adapter *qdev = NULL;
3923         static int cards_found = 0;
3924         int uninitialized_var(pci_using_dac), err;
3925
3926         err = pci_enable_device(pdev);
3927         if (err) {
3928                 printk(KERN_ERR PFX "%s cannot enable PCI device\n",
3929                        pci_name(pdev));
3930                 goto err_out;
3931         }
3932
3933         err = pci_request_regions(pdev, DRV_NAME);
3934         if (err) {
3935                 printk(KERN_ERR PFX "%s cannot obtain PCI resources\n",
3936                        pci_name(pdev));
3937                 goto err_out_disable_pdev;
3938         }
3939
3940         pci_set_master(pdev);
3941
3942         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
3943                 pci_using_dac = 1;
3944                 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
3945         } else if (!(err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))) {
3946                 pci_using_dac = 0;
3947                 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
3948         }
3949
3950         if (err) {
3951                 printk(KERN_ERR PFX "%s no usable DMA configuration\n",
3952                        pci_name(pdev));
3953                 goto err_out_free_regions;
3954         }
3955
3956         ndev = alloc_etherdev(sizeof(struct ql3_adapter));
3957         if (!ndev) {
3958                 printk(KERN_ERR PFX "%s could not alloc etherdev\n",
3959                        pci_name(pdev));
3960                 err = -ENOMEM;
3961                 goto err_out_free_regions;
3962         }
3963
3964         SET_NETDEV_DEV(ndev, &pdev->dev);
3965
3966         pci_set_drvdata(pdev, ndev);
3967
3968         qdev = netdev_priv(ndev);
3969         qdev->index = cards_found;
3970         qdev->ndev = ndev;
3971         qdev->pdev = pdev;
3972         qdev->device_id = pci_entry->device;
3973         qdev->port_link_state = LS_DOWN;
3974         if (msi)
3975                 qdev->msi = 1;
3976
3977         qdev->msg_enable = netif_msg_init(debug, default_msg);
3978
3979         if (pci_using_dac)
3980                 ndev->features |= NETIF_F_HIGHDMA;
3981         if (qdev->device_id == QL3032_DEVICE_ID)
3982                 ndev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
3983
3984         qdev->mem_map_registers = pci_ioremap_bar(pdev, 1);
3985         if (!qdev->mem_map_registers) {
3986                 printk(KERN_ERR PFX "%s: cannot map device registers\n",
3987                        pci_name(pdev));
3988                 err = -EIO;
3989                 goto err_out_free_ndev;
3990         }
3991
3992         spin_lock_init(&qdev->adapter_lock);
3993         spin_lock_init(&qdev->hw_lock);
3994
3995         /* Set driver entry points */
3996         ndev->netdev_ops = &ql3xxx_netdev_ops;
3997         SET_ETHTOOL_OPS(ndev, &ql3xxx_ethtool_ops);
3998         ndev->watchdog_timeo = 5 * HZ;
3999
4000         netif_napi_add(ndev, &qdev->napi, ql_poll, 64);
4001
4002         ndev->irq = pdev->irq;
4003
4004         /* make sure the EEPROM is good */
4005         if (ql_get_nvram_params(qdev)) {
4006                 printk(KERN_ALERT PFX
4007                        "ql3xxx_probe: Adapter #%d, Invalid NVRAM parameters.\n",
4008                        qdev->index);
4009                 err = -EIO;
4010                 goto err_out_iounmap;
4011         }
4012
4013         ql_set_mac_info(qdev);
4014
4015         /* Validate and set parameters */
4016         if (qdev->mac_index) {
4017                 ndev->mtu = qdev->nvram_data.macCfg_port1.etherMtu_mac ;
4018                 ql_set_mac_addr(ndev, qdev->nvram_data.funcCfg_fn2.macAddress);
4019         } else {
4020                 ndev->mtu = qdev->nvram_data.macCfg_port0.etherMtu_mac ;
4021                 ql_set_mac_addr(ndev, qdev->nvram_data.funcCfg_fn0.macAddress);
4022         }
4023         memcpy(ndev->perm_addr, ndev->dev_addr, ndev->addr_len);
4024
4025         ndev->tx_queue_len = NUM_REQ_Q_ENTRIES;
4026
4027         /* Record PCI bus information. */
4028         ql_get_board_info(qdev);
4029
4030         /*
4031          * Set the Maximum Memory Read Byte Count value. We do this to handle
4032          * jumbo frames.
4033          */
4034         if (qdev->pci_x) {
4035                 pci_write_config_word(pdev, (int)0x4e, (u16) 0x0036);
4036         }
4037
4038         err = register_netdev(ndev);
4039         if (err) {
4040                 printk(KERN_ERR PFX "%s: cannot register net device\n",
4041                        pci_name(pdev));
4042                 goto err_out_iounmap;
4043         }
4044
4045         /* we're going to reset, so assume we have no link for now */
4046
4047         netif_carrier_off(ndev);
4048         netif_stop_queue(ndev);
4049
4050         qdev->workqueue = create_singlethread_workqueue(ndev->name);
4051         INIT_DELAYED_WORK(&qdev->reset_work, ql_reset_work);
4052         INIT_DELAYED_WORK(&qdev->tx_timeout_work, ql_tx_timeout_work);
4053         INIT_DELAYED_WORK(&qdev->link_state_work, ql_link_state_machine_work);
4054
4055         init_timer(&qdev->adapter_timer);
4056         qdev->adapter_timer.function = ql3xxx_timer;
4057         qdev->adapter_timer.expires = jiffies + HZ * 2; /* two second delay */
4058         qdev->adapter_timer.data = (unsigned long)qdev;
4059
4060         if(!cards_found) {
4061                 printk(KERN_ALERT PFX "%s\n", DRV_STRING);
4062                 printk(KERN_ALERT PFX "Driver name: %s, Version: %s.\n",
4063                    DRV_NAME, DRV_VERSION);
4064         }
4065         ql_display_dev_info(ndev);
4066
4067         cards_found++;
4068         return 0;
4069
4070 err_out_iounmap:
4071         iounmap(qdev->mem_map_registers);
4072 err_out_free_ndev:
4073         free_netdev(ndev);
4074 err_out_free_regions:
4075         pci_release_regions(pdev);
4076 err_out_disable_pdev:
4077         pci_disable_device(pdev);
4078         pci_set_drvdata(pdev, NULL);
4079 err_out:
4080         return err;
4081 }
4082
4083 static void __devexit ql3xxx_remove(struct pci_dev *pdev)
4084 {
4085         struct net_device *ndev = pci_get_drvdata(pdev);
4086         struct ql3_adapter *qdev = netdev_priv(ndev);
4087
4088         unregister_netdev(ndev);
4089         qdev = netdev_priv(ndev);
4090
4091         ql_disable_interrupts(qdev);
4092
4093         if (qdev->workqueue) {
4094                 cancel_delayed_work(&qdev->reset_work);
4095                 cancel_delayed_work(&qdev->tx_timeout_work);
4096                 destroy_workqueue(qdev->workqueue);
4097                 qdev->workqueue = NULL;
4098         }
4099
4100         iounmap(qdev->mem_map_registers);
4101         pci_release_regions(pdev);
4102         pci_set_drvdata(pdev, NULL);
4103         free_netdev(ndev);
4104 }
4105
4106 static struct pci_driver ql3xxx_driver = {
4107
4108         .name = DRV_NAME,
4109         .id_table = ql3xxx_pci_tbl,
4110         .probe = ql3xxx_probe,
4111         .remove = __devexit_p(ql3xxx_remove),
4112 };
4113
4114 static int __init ql3xxx_init_module(void)
4115 {
4116         return pci_register_driver(&ql3xxx_driver);
4117 }
4118
4119 static void __exit ql3xxx_exit(void)
4120 {
4121         pci_unregister_driver(&ql3xxx_driver);
4122 }
4123
4124 module_init(ql3xxx_init_module);
4125 module_exit(ql3xxx_exit);