drivers/scsi/qla2xxx/qla_attr.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2005 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8
   9 #include <linux/vmalloc.h>
  10
  11 /* SYSFS attributes --------------------------------------------------------- */
  12
  13 static ssize_t
  14 qla2x00_sysfs_read_fw_dump(struct kobject *kobj, char *buf, loff_t off,
  15     size_t count)
  16 {
  17         struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
  18             struct device, kobj)));
  19
  20         if (ha->fw_dump_reading == 0)
  21                 return 0;
  22         if (off > ha->fw_dump_buffer_len)
  23                 return 0;
  24         if (off + count > ha->fw_dump_buffer_len)
  25                 count = ha->fw_dump_buffer_len - off;
  26
  27         memcpy(buf, &ha->fw_dump_buffer[off], count);
  28
  29         return (count);
  30 }
  31
  32 static ssize_t
  33 qla2x00_sysfs_write_fw_dump(struct kobject *kobj, char *buf, loff_t off,
  34     size_t count)
  35 {
  36         struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
  37             struct device, kobj)));
  38         int reading;
  39         uint32_t dump_size;
  40
  41         if (off != 0)
  42                 return (0);
  43
  44         reading = simple_strtol(buf, NULL, 10);
  45         switch (reading) {
  46         case 0:
  47                 if (ha->fw_dump_reading == 1) {
  48                         qla_printk(KERN_INFO, ha,
  49                             "Firmware dump cleared on (%ld).\n",
  50                             ha->host_no);
  51
  52                         vfree(ha->fw_dump_buffer);
  53                         if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha))
  54                                 free_pages((unsigned long)ha->fw_dump,
  55                                     ha->fw_dump_order);
  56
  57                         ha->fw_dump_reading = 0;
  58                         ha->fw_dump_buffer = NULL;
  59                         ha->fw_dump = NULL;
  60                         ha->fw_dumped = 0;
  61                 }
  62                 break;
  63         case 1:
  64                 if ((ha->fw_dump || ha->fw_dumped) && !ha->fw_dump_reading) {
  65                         ha->fw_dump_reading = 1;
  66
  67                         if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
  68                                 dump_size = FW_DUMP_SIZE_24XX;
  69                         else {
  70                                 dump_size = FW_DUMP_SIZE_1M;
  71                                 if (ha->fw_memory_size < 0x20000)
  72                                         dump_size = FW_DUMP_SIZE_128K;
  73                                 else if (ha->fw_memory_size < 0x80000)
  74                                         dump_size = FW_DUMP_SIZE_512K;
  75                         }
  76                         ha->fw_dump_buffer = (char *)vmalloc(dump_size);
  77                         if (ha->fw_dump_buffer == NULL) {
  78                                 qla_printk(KERN_WARNING, ha,
  79                                     "Unable to allocate memory for firmware "
  80                                     "dump buffer (%d).\n", dump_size);
  81
  82                                 ha->fw_dump_reading = 0;
  83                                 return (count);
  84                         }
  85                         qla_printk(KERN_INFO, ha,
  86                             "Firmware dump ready for read on (%ld).\n",
  87                             ha->host_no);
  88                         memset(ha->fw_dump_buffer, 0, dump_size);
  89                         ha->isp_ops.ascii_fw_dump(ha);
  90                         ha->fw_dump_buffer_len = strlen(ha->fw_dump_buffer);
  91                 }
  92                 break;
  93         }
  94         return (count);
  95 }
  96
  97 static struct bin_attribute sysfs_fw_dump_attr = {
  98         .attr = {
  99                 .name = "fw_dump",
 100                 .mode = S_IRUSR | S_IWUSR,
 101                 .owner = THIS_MODULE,
 102         },
 103         .size = 0,
 104         .read = qla2x00_sysfs_read_fw_dump,
 105         .write = qla2x00_sysfs_write_fw_dump,
 106 };
 107
 108 static ssize_t
 109 qla2x00_sysfs_read_nvram(struct kobject *kobj, char *buf, loff_t off,
 110     size_t count)
 111 {
 112         struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 113             struct device, kobj)));
 114         unsigned long   flags;
 115
 116         if (!capable(CAP_SYS_ADMIN) || off != 0)
 117                 return 0;
 118
 119         /* Read NVRAM. */
 120         spin_lock_irqsave(&ha->hardware_lock, flags);
 121         ha->isp_ops.read_nvram(ha, (uint8_t *)buf, ha->nvram_base,
 122             ha->nvram_size);
 123         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 124
 125         return ha->nvram_size;
 126 }
 127
 128 static ssize_t
 129 qla2x00_sysfs_write_nvram(struct kobject *kobj, char *buf, loff_t off,
 130     size_t count)
 131 {
 132         struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 133             struct device, kobj)));
 134         unsigned long   flags;
 135         uint16_t        cnt;
 136
 137         if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->nvram_size)
 138                 return 0;
 139
 140         /* Checksum NVRAM. */
 141         if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
 142                 uint32_t *iter;
 143                 uint32_t chksum;
 144
 145                 iter = (uint32_t *)buf;
 146                 chksum = 0;
 147                 for (cnt = 0; cnt < ((count >> 2) - 1); cnt++)
 148                         chksum += le32_to_cpu(*iter++);
 149                 chksum = ~chksum + 1;
 150                 *iter = cpu_to_le32(chksum);
 151         } else {
 152                 uint8_t *iter;
 153                 uint8_t chksum;
 154
 155                 iter = (uint8_t *)buf;
 156                 chksum = 0;
 157                 for (cnt = 0; cnt < count - 1; cnt++)
 158                         chksum += *iter++;
 159                 chksum = ~chksum + 1;
 160                 *iter = chksum;
 161         }
 162
 163         /* Write NVRAM. */
 164         spin_lock_irqsave(&ha->hardware_lock, flags);
 165         ha->isp_ops.write_nvram(ha, (uint8_t *)buf, ha->nvram_base, count);
 166         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 167
 168         return (count);
 169 }
 170
 171 static struct bin_attribute sysfs_nvram_attr = {
 172         .attr = {
 173                 .name = "nvram",
 174                 .mode = S_IRUSR | S_IWUSR,
 175                 .owner = THIS_MODULE,
 176         },
 177         .size = 512,
 178         .read = qla2x00_sysfs_read_nvram,
 179         .write = qla2x00_sysfs_write_nvram,
 180 };
 181
 182 static ssize_t
 183 qla2x00_sysfs_read_optrom(struct kobject *kobj, char *buf, loff_t off,
 184     size_t count)
 185 {
 186         struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 187             struct device, kobj)));
 188
 189         if (ha->optrom_state != QLA_SREADING)
 190                 return 0;
 191         if (off > ha->optrom_size)
 192                 return 0;
 193         if (off + count > ha->optrom_size)
 194                 count = ha->optrom_size - off;
 195
 196         memcpy(buf, &ha->optrom_buffer[off], count);
 197
 198         return count;
 199 }
 200
 201 static ssize_t
 202 qla2x00_sysfs_write_optrom(struct kobject *kobj, char *buf, loff_t off,
 203     size_t count)
 204 {
 205         struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 206             struct device, kobj)));
 207
 208         if (ha->optrom_state != QLA_SWRITING)
 209                 return -EINVAL;
 210         if (off > ha->optrom_size)
 211                 return -ERANGE;
 212         if (off + count > ha->optrom_size)
 213                 count = ha->optrom_size - off;
 214
 215         memcpy(&ha->optrom_buffer[off], buf, count);
 216
 217         return count;
 218 }
 219
 220 static struct bin_attribute sysfs_optrom_attr = {
 221         .attr = {
 222                 .name = "optrom",
 223                 .mode = S_IRUSR | S_IWUSR,
 224                 .owner = THIS_MODULE,
 225         },
 226         .size = OPTROM_SIZE_24XX,
 227         .read = qla2x00_sysfs_read_optrom,
 228         .write = qla2x00_sysfs_write_optrom,
 229 };
 230
 231 static ssize_t
 232 qla2x00_sysfs_write_optrom_ctl(struct kobject *kobj, char *buf, loff_t off,
 233     size_t count)
 234 {
 235         struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 236             struct device, kobj)));
 237         int val;
 238
 239         if (off)
 240                 return 0;
 241
 242         if (sscanf(buf, "%d", &val) != 1)
 243                 return -EINVAL;
 244
 245         switch (val) {
 246         case 0:
 247                 if (ha->optrom_state != QLA_SREADING &&
 248                     ha->optrom_state != QLA_SWRITING)
 249                         break;
 250
 251                 ha->optrom_state = QLA_SWAITING;
 252                 vfree(ha->optrom_buffer);
 253                 ha->optrom_buffer = NULL;
 254                 break;
 255         case 1:
 256                 if (ha->optrom_state != QLA_SWAITING)
 257                         break;
 258
 259                 ha->optrom_state = QLA_SREADING;
 260                 ha->optrom_buffer = (uint8_t *)vmalloc(ha->optrom_size);
 261                 if (ha->optrom_buffer == NULL) {
 262                         qla_printk(KERN_WARNING, ha,
 263                             "Unable to allocate memory for optrom retrieval "
 264                             "(%x).\n", ha->optrom_size);
 265
 266                         ha->optrom_state = QLA_SWAITING;
 267                         return count;
 268                 }
 269
 270                 memset(ha->optrom_buffer, 0, ha->optrom_size);
 271                 ha->isp_ops.read_optrom(ha, ha->optrom_buffer, 0,
 272                     ha->optrom_size);
 273                 break;
 274         case 2:
 275                 if (ha->optrom_state != QLA_SWAITING)
 276                         break;
 277
 278                 ha->optrom_state = QLA_SWRITING;
 279                 ha->optrom_buffer = (uint8_t *)vmalloc(ha->optrom_size);
 280                 if (ha->optrom_buffer == NULL) {
 281                         qla_printk(KERN_WARNING, ha,
 282                             "Unable to allocate memory for optrom update "
 283                             "(%x).\n", ha->optrom_size);
 284
 285                         ha->optrom_state = QLA_SWAITING;
 286                         return count;
 287                 }
 288                 memset(ha->optrom_buffer, 0, ha->optrom_size);
 289                 break;
 290         case 3:
 291                 if (ha->optrom_state != QLA_SWRITING)
 292                         break;
 293
 294                 ha->isp_ops.write_optrom(ha, ha->optrom_buffer, 0,
 295                     ha->optrom_size);
 296                 break;
 297         }
 298         return count;
 299 }
 300
 301 static struct bin_attribute sysfs_optrom_ctl_attr = {
 302         .attr = {
 303                 .name = "optrom_ctl",
 304                 .mode = S_IWUSR,
 305                 .owner = THIS_MODULE,
 306         },
 307         .size = 0,
 308         .write = qla2x00_sysfs_write_optrom_ctl,
 309 };
 310
 311 static ssize_t
 312 qla2x00_sysfs_read_vpd(struct kobject *kobj, char *buf, loff_t off,
 313     size_t count)
 314 {
 315         struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 316             struct device, kobj)));
 317         unsigned long flags;
 318
 319         if (!capable(CAP_SYS_ADMIN) || off != 0)
 320                 return 0;
 321
 322         if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha))
 323                 return -ENOTSUPP;
 324
 325         /* Read NVRAM. */
 326         spin_lock_irqsave(&ha->hardware_lock, flags);
 327         ha->isp_ops.read_nvram(ha, (uint8_t *)buf, ha->vpd_base, ha->vpd_size);
 328         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 329
 330         return ha->vpd_size;
 331 }
 332
 333 static ssize_t
 334 qla2x00_sysfs_write_vpd(struct kobject *kobj, char *buf, loff_t off,
 335     size_t count)
 336 {
 337         struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
 338             struct device, kobj)));
 339         unsigned long flags;
 340
 341         if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->vpd_size)
 342                 return 0;
 343
 344         if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha))
 345                 return -ENOTSUPP;
 346
 347         /* Write NVRAM. */
 348         spin_lock_irqsave(&ha->hardware_lock, flags);
 349         ha->isp_ops.write_nvram(ha, (uint8_t *)buf, ha->vpd_base, count);
 350         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 351
 352         return count;
 353 }
 354
 355 static struct bin_attribute sysfs_vpd_attr = {
 356         .attr = {
 357                 .name = "vpd",
 358                 .mode = S_IRUSR | S_IWUSR,
 359                 .owner = THIS_MODULE,
 360         },
 361         .size = 0,
 362         .read = qla2x00_sysfs_read_vpd,
 363         .write = qla2x00_sysfs_write_vpd,
 364 };
 365
 366 void
 367 qla2x00_alloc_sysfs_attr(scsi_qla_host_t *ha)
 368 {
 369         struct Scsi_Host *host = ha->host;
 370
 371         sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr);
 372         sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr);
 373         sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_optrom_attr);
 374         sysfs_create_bin_file(&host->shost_gendev.kobj,
 375             &sysfs_optrom_ctl_attr);
 376         sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_vpd_attr);
 377 }
 378
 379 void
 380 qla2x00_free_sysfs_attr(scsi_qla_host_t *ha)
 381 {
 382         struct Scsi_Host *host = ha->host;
 383
 384         sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr);
 385         sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr);
 386         sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_optrom_attr);
 387         sysfs_remove_bin_file(&host->shost_gendev.kobj,
 388             &sysfs_optrom_ctl_attr);
 389         sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_vpd_attr);
 390
 391         if (ha->beacon_blink_led == 1)
 392                 ha->isp_ops.beacon_off(ha);
 393 }
 394
 395 /* Scsi_Host attributes. */
 396
 397 static ssize_t
 398 qla2x00_drvr_version_show(struct class_device *cdev, char *buf)
 399 {
 400         return snprintf(buf, PAGE_SIZE, "%s\n", qla2x00_version_str);
 401 }
 402
 403 static ssize_t
 404 qla2x00_fw_version_show(struct class_device *cdev, char *buf)
 405 {
 406         scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
 407         char fw_str[30];
 408
 409         return snprintf(buf, PAGE_SIZE, "%s\n",
 410             ha->isp_ops.fw_version_str(ha, fw_str));
 411 }
 412
 413 static ssize_t
 414 qla2x00_serial_num_show(struct class_device *cdev, char *buf)
 415 {
 416         scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
 417         uint32_t sn;
 418
 419         sn = ((ha->serial0 & 0x1f) << 16) | (ha->serial2 << 8) | ha->serial1;
 420         return snprintf(buf, PAGE_SIZE, "%c%05d\n", 'A' + sn / 100000,
 421             sn % 100000);
 422 }
 423
 424 static ssize_t
 425 qla2x00_isp_name_show(struct class_device *cdev, char *buf)
 426 {
 427         scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
 428         return snprintf(buf, PAGE_SIZE, "ISP%04X\n", ha->pdev->device);
 429 }
 430
 431 static ssize_t
 432 qla2x00_isp_id_show(struct class_device *cdev, char *buf)
 433 {
 434         scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
 435         return snprintf(buf, PAGE_SIZE, "%04x %04x %04x %04x\n",
 436             ha->product_id[0], ha->product_id[1], ha->product_id[2],
 437             ha->product_id[3]);
 438 }
 439
 440 static ssize_t
 441 qla2x00_model_name_show(struct class_device *cdev, char *buf)
 442 {
 443         scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
 444         return snprintf(buf, PAGE_SIZE, "%s\n", ha->model_number);
 445 }
 446
 447 static ssize_t
 448 qla2x00_model_desc_show(struct class_device *cdev, char *buf)
 449 {
 450         scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
 451         return snprintf(buf, PAGE_SIZE, "%s\n",
 452             ha->model_desc ? ha->model_desc: "");
 453 }
 454
 455 static ssize_t
 456 qla2x00_pci_info_show(struct class_device *cdev, char *buf)
 457 {
 458         scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
 459         char pci_info[30];
 460
 461         return snprintf(buf, PAGE_SIZE, "%s\n",
 462             ha->isp_ops.pci_info_str(ha, pci_info));
 463 }
 464
 465 static ssize_t
 466 qla2x00_state_show(struct class_device *cdev, char *buf)
 467 {
 468         scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
 469         int len = 0;
 470
 471         if (atomic_read(&ha->loop_state) == LOOP_DOWN ||
 472             atomic_read(&ha->loop_state) == LOOP_DEAD)
 473                 len = snprintf(buf, PAGE_SIZE, "Link Down\n");
 474         else if (atomic_read(&ha->loop_state) != LOOP_READY ||
 475             test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
 476             test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags))
 477                 len = snprintf(buf, PAGE_SIZE, "Unknown Link State\n");
 478         else {
 479                 len = snprintf(buf, PAGE_SIZE, "Link Up - ");
 480
 481                 switch (ha->current_topology) {
 482                 case ISP_CFG_NL:
 483                         len += snprintf(buf + len, PAGE_SIZE-len, "Loop\n");
 484                         break;
 485                 case ISP_CFG_FL:
 486                         len += snprintf(buf + len, PAGE_SIZE-len, "FL_Port\n");
 487                         break;
 488                 case ISP_CFG_N:
 489                         len += snprintf(buf + len, PAGE_SIZE-len,
 490                             "N_Port to N_Port\n");
 491                         break;
 492                 case ISP_CFG_F:
 493                         len += snprintf(buf + len, PAGE_SIZE-len, "F_Port\n");
 494                         break;
 495                 default:
 496                         len += snprintf(buf + len, PAGE_SIZE-len, "Loop\n");
 497                         break;
 498                 }
 499         }
 500         return len;
 501 }
 502
 503 static ssize_t
 504 qla2x00_zio_show(struct class_device *cdev, char *buf)
 505 {
 506         scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
 507         int len = 0;
 508
 509         switch (ha->zio_mode) {
 510         case QLA_ZIO_MODE_6:
 511                 len += snprintf(buf + len, PAGE_SIZE-len, "Mode 6\n");
 512                 break;
 513         case QLA_ZIO_DISABLED:
 514                 len += snprintf(buf + len, PAGE_SIZE-len, "Disabled\n");
 515                 break;
 516         }
 517         return len;
 518 }
 519
 520 static ssize_t
 521 qla2x00_zio_store(struct class_device *cdev, const char *buf, size_t count)
 522 {
 523         scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
 524         int val = 0;
 525         uint16_t zio_mode;
 526
 527         if (!IS_ZIO_SUPPORTED(ha))
 528                 return -ENOTSUPP;
 529
 530         if (sscanf(buf, "%d", &val) != 1)
 531                 return -EINVAL;
 532
 533         if (val)
 534                 zio_mode = QLA_ZIO_MODE_6;
 535         else
 536                 zio_mode = QLA_ZIO_DISABLED;
 537
 538         /* Update per-hba values and queue a reset. */
 539         if (zio_mode != QLA_ZIO_DISABLED || ha->zio_mode != QLA_ZIO_DISABLED) {
 540                 ha->zio_mode = zio_mode;
 541                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
 542         }
 543         return strlen(buf);
 544 }
 545
 546 static ssize_t
 547 qla2x00_zio_timer_show(struct class_device *cdev, char *buf)
 548 {
 549         scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
 550
 551         return snprintf(buf, PAGE_SIZE, "%d us\n", ha->zio_timer * 100);
 552 }
 553
 554 static ssize_t
 555 qla2x00_zio_timer_store(struct class_device *cdev, const char *buf,
 556     size_t count)
 557 {
 558         scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
 559         int val = 0;
 560         uint16_t zio_timer;
 561
 562         if (sscanf(buf, "%d", &val) != 1)
 563                 return -EINVAL;
 564         if (val > 25500 || val < 100)
 565                 return -ERANGE;
 566
 567         zio_timer = (uint16_t)(val / 100);
 568         ha->zio_timer = zio_timer;
 569
 570         return strlen(buf);
 571 }
 572
 573 static ssize_t
 574 qla2x00_beacon_show(struct class_device *cdev, char *buf)
 575 {
 576         scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
 577         int len = 0;
 578
 579         if (ha->beacon_blink_led)
 580                 len += snprintf(buf + len, PAGE_SIZE-len, "Enabled\n");
 581         else
 582                 len += snprintf(buf + len, PAGE_SIZE-len, "Disabled\n");
 583         return len;
 584 }
 585
 586 static ssize_t
 587 qla2x00_beacon_store(struct class_device *cdev, const char *buf,
 588     size_t count)
 589 {
 590         scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev));
 591         int val = 0;
 592         int rval;
 593
 594         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 595                 return -EPERM;
 596
 597         if (test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) {
 598                 qla_printk(KERN_WARNING, ha,
 599                     "Abort ISP active -- ignoring beacon request.\n");
 600                 return -EBUSY;
 601         }
 602
 603         if (sscanf(buf, "%d", &val) != 1)
 604                 return -EINVAL;
 605
 606         if (val)
 607                 rval = ha->isp_ops.beacon_on(ha);
 608         else
 609                 rval = ha->isp_ops.beacon_off(ha);
 610
 611         if (rval != QLA_SUCCESS)
 612                 count = 0;
 613
 614         return count;
 615 }
 616
 617 static CLASS_DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show,
 618         NULL);
 619 static CLASS_DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL);
 620 static CLASS_DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL);
 621 static CLASS_DEVICE_ATTR(isp_name, S_IRUGO, qla2x00_isp_name_show, NULL);
 622 static CLASS_DEVICE_ATTR(isp_id, S_IRUGO, qla2x00_isp_id_show, NULL);
 623 static CLASS_DEVICE_ATTR(model_name, S_IRUGO, qla2x00_model_name_show, NULL);
 624 static CLASS_DEVICE_ATTR(model_desc, S_IRUGO, qla2x00_model_desc_show, NULL);
 625 static CLASS_DEVICE_ATTR(pci_info, S_IRUGO, qla2x00_pci_info_show, NULL);
 626 static CLASS_DEVICE_ATTR(state, S_IRUGO, qla2x00_state_show, NULL);
 627 static CLASS_DEVICE_ATTR(zio, S_IRUGO | S_IWUSR, qla2x00_zio_show,
 628     qla2x00_zio_store);
 629 static CLASS_DEVICE_ATTR(zio_timer, S_IRUGO | S_IWUSR, qla2x00_zio_timer_show,
 630     qla2x00_zio_timer_store);
 631 static CLASS_DEVICE_ATTR(beacon, S_IRUGO | S_IWUSR, qla2x00_beacon_show,
 632     qla2x00_beacon_store);
 633
 634 struct class_device_attribute *qla2x00_host_attrs[] = {
 635         &class_device_attr_driver_version,
 636         &class_device_attr_fw_version,
 637         &class_device_attr_serial_num,
 638         &class_device_attr_isp_name,
 639         &class_device_attr_isp_id,
 640         &class_device_attr_model_name,
 641         &class_device_attr_model_desc,
 642         &class_device_attr_pci_info,
 643         &class_device_attr_state,
 644         &class_device_attr_zio,
 645         &class_device_attr_zio_timer,
 646         &class_device_attr_beacon,
 647         NULL,
 648 };
 649
 650 /* Host attributes. */
 651
 652 static void
 653 qla2x00_get_host_port_id(struct Scsi_Host *shost)
 654 {
 655         scsi_qla_host_t *ha = to_qla_host(shost);
 656
 657         fc_host_port_id(shost) = ha->d_id.b.domain << 16 |
 658             ha->d_id.b.area << 8 | ha->d_id.b.al_pa;
 659 }
 660
 661 static void
 662 qla2x00_get_host_speed(struct Scsi_Host *shost)
 663 {
 664         scsi_qla_host_t *ha = to_qla_host(shost);
 665         uint32_t speed = 0;
 666
 667         switch (ha->link_data_rate) {
 668         case LDR_1GB:
 669                 speed = 1;
 670                 break;
 671         case LDR_2GB:
 672                 speed = 2;
 673                 break;
 674         case LDR_4GB:
 675                 speed = 4;
 676                 break;
 677         }
 678         fc_host_speed(shost) = speed;
 679 }
 680
 681 static void
 682 qla2x00_get_host_port_type(struct Scsi_Host *shost)
 683 {
 684         scsi_qla_host_t *ha = to_qla_host(shost);
 685         uint32_t port_type = FC_PORTTYPE_UNKNOWN;
 686
 687         switch (ha->current_topology) {
 688         case ISP_CFG_NL:
 689                 port_type = FC_PORTTYPE_LPORT;
 690                 break;
 691         case ISP_CFG_FL:
 692                 port_type = FC_PORTTYPE_NLPORT;
 693                 break;
 694         case ISP_CFG_N:
 695                 port_type = FC_PORTTYPE_PTP;
 696                 break;
 697         case ISP_CFG_F:
 698                 port_type = FC_PORTTYPE_NPORT;
 699                 break;
 700         }
 701         fc_host_port_type(shost) = port_type;
 702 }
 703
 704 static void
 705 qla2x00_get_starget_node_name(struct scsi_target *starget)
 706 {
 707         struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
 708         scsi_qla_host_t *ha = to_qla_host(host);
 709         fc_port_t *fcport;
 710         u64 node_name = 0;
 711
 712         list_for_each_entry(fcport, &ha->fcports, list) {
 713                 if (starget->id == fcport->os_target_id) {
 714                         node_name = wwn_to_u64(fcport->node_name);
 715                         break;
 716                 }
 717         }
 718
 719         fc_starget_node_name(starget) = node_name;
 720 }
 721
 722 static void
 723 qla2x00_get_starget_port_name(struct scsi_target *starget)
 724 {
 725         struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
 726         scsi_qla_host_t *ha = to_qla_host(host);
 727         fc_port_t *fcport;
 728         u64 port_name = 0;
 729
 730         list_for_each_entry(fcport, &ha->fcports, list) {
 731                 if (starget->id == fcport->os_target_id) {
 732                         port_name = wwn_to_u64(fcport->port_name);
 733                         break;
 734                 }
 735         }
 736
 737         fc_starget_port_name(starget) = port_name;
 738 }
 739
 740 static void
 741 qla2x00_get_starget_port_id(struct scsi_target *starget)
 742 {
 743         struct Scsi_Host *host = dev_to_shost(starget->dev.parent);
 744         scsi_qla_host_t *ha = to_qla_host(host);
 745         fc_port_t *fcport;
 746         uint32_t port_id = ~0U;
 747
 748         list_for_each_entry(fcport, &ha->fcports, list) {
 749                 if (starget->id == fcport->os_target_id) {
 750                         port_id = fcport->d_id.b.domain << 16 |
 751                             fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa;
 752                         break;
 753                 }
 754         }
 755
 756         fc_starget_port_id(starget) = port_id;
 757 }
 758
 759 static void
 760 qla2x00_get_rport_loss_tmo(struct fc_rport *rport)
 761 {
 762         struct Scsi_Host *host = rport_to_shost(rport);
 763         scsi_qla_host_t *ha = to_qla_host(host);
 764
 765         rport->dev_loss_tmo = ha->port_down_retry_count + 5;
 766 }
 767
 768 static void
 769 qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
 770 {
 771         struct Scsi_Host *host = rport_to_shost(rport);
 772         scsi_qla_host_t *ha = to_qla_host(host);
 773
 774         if (timeout)
 775                 ha->port_down_retry_count = timeout;
 776         else
 777                 ha->port_down_retry_count = 1;
 778
 779         rport->dev_loss_tmo = ha->port_down_retry_count + 5;
 780 }
 781
 782 static int
 783 qla2x00_issue_lip(struct Scsi_Host *shost)
 784 {
 785         scsi_qla_host_t *ha = to_qla_host(shost);
 786
 787         set_bit(LOOP_RESET_NEEDED, &ha->dpc_flags);
 788         return 0;
 789 }
 790
 791 static struct fc_host_statistics *
 792 qla2x00_get_fc_host_stats(struct Scsi_Host *shost)
 793 {
 794         scsi_qla_host_t *ha = to_qla_host(shost);
 795         int rval;
 796         uint16_t mb_stat[1];
 797         link_stat_t stat_buf;
 798         struct fc_host_statistics *pfc_host_stat;
 799
 800         pfc_host_stat = &ha->fc_host_stat;
 801         memset(pfc_host_stat, -1, sizeof(struct fc_host_statistics));
 802
 803         if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
 804                 rval = qla24xx_get_isp_stats(ha, (uint32_t *)&stat_buf,
 805                     sizeof(stat_buf) / 4, mb_stat);
 806         } else {
 807                 rval = qla2x00_get_link_status(ha, ha->loop_id, &stat_buf,
 808                     mb_stat);
 809         }
 810         if (rval != 0) {
 811                 qla_printk(KERN_WARNING, ha,
 812                     "Unable to retrieve host statistics (%d).\n", mb_stat[0]);
 813                 return pfc_host_stat;
 814         }
 815
 816         pfc_host_stat->link_failure_count = stat_buf.link_fail_cnt;
 817         pfc_host_stat->loss_of_sync_count = stat_buf.loss_sync_cnt;
 818         pfc_host_stat->loss_of_signal_count = stat_buf.loss_sig_cnt;
 819         pfc_host_stat->prim_seq_protocol_err_count = stat_buf.prim_seq_err_cnt;
 820         pfc_host_stat->invalid_tx_word_count = stat_buf.inval_xmit_word_cnt;
 821         pfc_host_stat->invalid_crc_count = stat_buf.inval_crc_cnt;
 822
 823         return pfc_host_stat;
 824 }
 825
 826 struct fc_function_template qla2xxx_transport_functions = {
 827
 828         .show_host_node_name = 1,
 829         .show_host_port_name = 1,
 830         .show_host_supported_classes = 1,
 831
 832         .get_host_port_id = qla2x00_get_host_port_id,
 833         .show_host_port_id = 1,
 834         .get_host_speed = qla2x00_get_host_speed,
 835         .show_host_speed = 1,
 836         .get_host_port_type = qla2x00_get_host_port_type,
 837         .show_host_port_type = 1,
 838
 839         .dd_fcrport_size = sizeof(struct fc_port *),
 840         .show_rport_supported_classes = 1,
 841
 842         .get_starget_node_name = qla2x00_get_starget_node_name,
 843         .show_starget_node_name = 1,
 844         .get_starget_port_name = qla2x00_get_starget_port_name,
 845         .show_starget_port_name = 1,
 846         .get_starget_port_id  = qla2x00_get_starget_port_id,
 847         .show_starget_port_id = 1,
 848
 849         .get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo,
 850         .set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo,
 851         .show_rport_dev_loss_tmo = 1,
 852
 853         .issue_fc_host_lip = qla2x00_issue_lip,
 854         .get_fc_host_stats = qla2x00_get_fc_host_stats,
 855 };
 856
 857 void
 858 qla2x00_init_host_attr(scsi_qla_host_t *ha)
 859 {
 860         fc_host_node_name(ha->host) = wwn_to_u64(ha->node_name);
 861         fc_host_port_name(ha->host) = wwn_to_u64(ha->port_name);
 862         fc_host_supported_classes(ha->host) = FC_COS_CLASS3;
 863 }