1 /* 2 * zfcp device driver 3 * 4 * sysfs attributes. 5 * 6 * Copyright IBM Corp. 2008, 2010 7 */ 8 9 #define KMSG_COMPONENT "zfcp" 10 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt 11 12 #include <linux/slab.h> 13 #include "zfcp_ext.h" 14 15 #define ZFCP_DEV_ATTR(_feat, _name, _mode, _show, _store) \ 16 struct device_attribute dev_attr_##_feat##_##_name = __ATTR(_name, _mode,\ 17 _show, _store) 18 #define ZFCP_DEFINE_ATTR(_feat_def, _feat, _name, _format, _value) \ 19 static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev, \ 20 struct device_attribute *at,\ 21 char *buf) \ 22 { \ 23 struct _feat_def *_feat = container_of(dev, struct _feat_def, dev); \ 24 \ 25 return sprintf(buf, _format, _value); \ 26 } \ 27 static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO, \ 28 zfcp_sysfs_##_feat##_##_name##_show, NULL); 29 30 #define ZFCP_DEFINE_A_ATTR(_name, _format, _value) \ 31 static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \ 32 struct device_attribute *at,\ 33 char *buf) \ 34 { \ 35 struct ccw_device *cdev = to_ccwdev(dev); \ 36 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); \ 37 int i; \ 38 \ 39 if (!adapter) \ 40 return -ENODEV; \ 41 \ 42 i = sprintf(buf, _format, _value); \ 43 zfcp_ccw_adapter_put(adapter); \ 44 return i; \ 45 } \ 46 static ZFCP_DEV_ATTR(adapter, _name, S_IRUGO, \ 47 zfcp_sysfs_adapter_##_name##_show, NULL); 48 49 ZFCP_DEFINE_A_ATTR(status, "0x%08x\n", atomic_read(&adapter->status)); 50 ZFCP_DEFINE_A_ATTR(peer_wwnn, "0x%016llx\n", 51 (unsigned long long) adapter->peer_wwnn); 52 ZFCP_DEFINE_A_ATTR(peer_wwpn, "0x%016llx\n", 53 (unsigned long long) adapter->peer_wwpn); 54 ZFCP_DEFINE_A_ATTR(peer_d_id, "0x%06x\n", adapter->peer_d_id); 55 ZFCP_DEFINE_A_ATTR(card_version, "0x%04x\n", adapter->hydra_version); 56 ZFCP_DEFINE_A_ATTR(lic_version, "0x%08x\n", adapter->fsf_lic_version); 57 ZFCP_DEFINE_A_ATTR(hardware_version, "0x%08x\n", adapter->hardware_version); 58 ZFCP_DEFINE_A_ATTR(in_recovery, "%d\n", (atomic_read(&adapter->status) & 59 ZFCP_STATUS_COMMON_ERP_INUSE) != 0); 60 61 ZFCP_DEFINE_ATTR(zfcp_port, port, status, "0x%08x\n", 62 atomic_read(&port->status)); 63 ZFCP_DEFINE_ATTR(zfcp_port, port, in_recovery, "%d\n", 64 (atomic_read(&port->status) & 65 ZFCP_STATUS_COMMON_ERP_INUSE) != 0); 66 ZFCP_DEFINE_ATTR(zfcp_port, port, access_denied, "%d\n", 67 (atomic_read(&port->status) & 68 ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0); 69 70 ZFCP_DEFINE_ATTR(zfcp_unit, unit, status, "0x%08x\n", 71 zfcp_unit_sdev_status(unit)); 72 ZFCP_DEFINE_ATTR(zfcp_unit, unit, in_recovery, "%d\n", 73 (zfcp_unit_sdev_status(unit) & 74 ZFCP_STATUS_COMMON_ERP_INUSE) != 0); 75 ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_denied, "%d\n", 76 (zfcp_unit_sdev_status(unit) & 77 ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0); 78 ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_shared, "%d\n", 79 (zfcp_unit_sdev_status(unit) & 80 ZFCP_STATUS_LUN_SHARED) != 0); 81 ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_readonly, "%d\n", 82 (zfcp_unit_sdev_status(unit) & 83 ZFCP_STATUS_LUN_READONLY) != 0); 84 85 static ssize_t zfcp_sysfs_port_failed_show(struct device *dev, 86 struct device_attribute *attr, 87 char *buf) 88 { 89 struct zfcp_port *port = container_of(dev, struct zfcp_port, dev); 90 91 if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_FAILED) 92 return sprintf(buf, "1\n"); 93 94 return sprintf(buf, "0\n"); 95 } 96 97 static ssize_t zfcp_sysfs_port_failed_store(struct device *dev, 98 struct device_attribute *attr, 99 const char *buf, size_t count) 100 { 101 struct zfcp_port *port = container_of(dev, struct zfcp_port, dev); 102 unsigned long val; 103 104 if (strict_strtoul(buf, 0, &val) || val != 0) 105 return -EINVAL; 106 107 zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_RUNNING); 108 zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, "sypfai2"); 109 zfcp_erp_wait(port->adapter); 110 111 return count; 112 } 113 static ZFCP_DEV_ATTR(port, failed, S_IWUSR | S_IRUGO, 114 zfcp_sysfs_port_failed_show, 115 zfcp_sysfs_port_failed_store); 116 117 static ssize_t zfcp_sysfs_unit_failed_show(struct device *dev, 118 struct device_attribute *attr, 119 char *buf) 120 { 121 struct zfcp_unit *unit = container_of(dev, struct zfcp_unit, dev); 122 struct scsi_device *sdev; 123 unsigned int status, failed = 1; 124 125 sdev = zfcp_unit_sdev(unit); 126 if (sdev) { 127 status = atomic_read(&sdev_to_zfcp(sdev)->status); 128 failed = status & ZFCP_STATUS_COMMON_ERP_FAILED ? 1 : 0; 129 scsi_device_put(sdev); 130 } 131 132 return sprintf(buf, "%d\n", failed); 133 } 134 135 static ssize_t zfcp_sysfs_unit_failed_store(struct device *dev, 136 struct device_attribute *attr, 137 const char *buf, size_t count) 138 { 139 struct zfcp_unit *unit = container_of(dev, struct zfcp_unit, dev); 140 unsigned long val; 141 struct scsi_device *sdev; 142 143 if (strict_strtoul(buf, 0, &val) || val != 0) 144 return -EINVAL; 145 146 sdev = zfcp_unit_sdev(unit); 147 if (sdev) { 148 zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_RUNNING); 149 zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED, 150 "syufai2"); 151 zfcp_erp_wait(unit->port->adapter); 152 } else 153 zfcp_unit_scsi_scan(unit); 154 155 return count; 156 } 157 static ZFCP_DEV_ATTR(unit, failed, S_IWUSR | S_IRUGO, 158 zfcp_sysfs_unit_failed_show, 159 zfcp_sysfs_unit_failed_store); 160 161 static ssize_t zfcp_sysfs_adapter_failed_show(struct device *dev, 162 struct device_attribute *attr, 163 char *buf) 164 { 165 struct ccw_device *cdev = to_ccwdev(dev); 166 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); 167 int i; 168 169 if (!adapter) 170 return -ENODEV; 171 172 if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED) 173 i = sprintf(buf, "1\n"); 174 else 175 i = sprintf(buf, "0\n"); 176 177 zfcp_ccw_adapter_put(adapter); 178 return i; 179 } 180 181 static ssize_t zfcp_sysfs_adapter_failed_store(struct device *dev, 182 struct device_attribute *attr, 183 const char *buf, size_t count) 184 { 185 struct ccw_device *cdev = to_ccwdev(dev); 186 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); 187 unsigned long val; 188 int retval = 0; 189 190 if (!adapter) 191 return -ENODEV; 192 193 if (strict_strtoul(buf, 0, &val) || val != 0) { 194 retval = -EINVAL; 195 goto out; 196 } 197 198 zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING); 199 zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 200 "syafai2"); 201 zfcp_erp_wait(adapter); 202 out: 203 zfcp_ccw_adapter_put(adapter); 204 return retval ? retval : (ssize_t) count; 205 } 206 static ZFCP_DEV_ATTR(adapter, failed, S_IWUSR | S_IRUGO, 207 zfcp_sysfs_adapter_failed_show, 208 zfcp_sysfs_adapter_failed_store); 209 210 static ssize_t zfcp_sysfs_port_rescan_store(struct device *dev, 211 struct device_attribute *attr, 212 const char *buf, size_t count) 213 { 214 struct ccw_device *cdev = to_ccwdev(dev); 215 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); 216 217 if (!adapter) 218 return -ENODEV; 219 220 /* sync the user-space- with the kernel-invocation of scan_work */ 221 queue_work(adapter->work_queue, &adapter->scan_work); 222 flush_work(&adapter->scan_work); 223 zfcp_ccw_adapter_put(adapter); 224 225 return (ssize_t) count; 226 } 227 static ZFCP_DEV_ATTR(adapter, port_rescan, S_IWUSR, NULL, 228 zfcp_sysfs_port_rescan_store); 229 230 DEFINE_MUTEX(zfcp_sysfs_port_units_mutex); 231 232 static ssize_t zfcp_sysfs_port_remove_store(struct device *dev, 233 struct device_attribute *attr, 234 const char *buf, size_t count) 235 { 236 struct ccw_device *cdev = to_ccwdev(dev); 237 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); 238 struct zfcp_port *port; 239 u64 wwpn; 240 int retval = -EINVAL; 241 242 if (!adapter) 243 return -ENODEV; 244 245 if (strict_strtoull(buf, 0, (unsigned long long *) &wwpn)) 246 goto out; 247 248 port = zfcp_get_port_by_wwpn(adapter, wwpn); 249 if (!port) 250 goto out; 251 else 252 retval = 0; 253 254 mutex_lock(&zfcp_sysfs_port_units_mutex); 255 if (atomic_read(&port->units) > 0) { 256 retval = -EBUSY; 257 mutex_unlock(&zfcp_sysfs_port_units_mutex); 258 goto out; 259 } 260 /* port is about to be removed, so no more unit_add */ 261 atomic_set(&port->units, -1); 262 mutex_unlock(&zfcp_sysfs_port_units_mutex); 263 264 write_lock_irq(&adapter->port_list_lock); 265 list_del(&port->list); 266 write_unlock_irq(&adapter->port_list_lock); 267 268 put_device(&port->dev); 269 270 zfcp_erp_port_shutdown(port, 0, "syprs_1"); 271 zfcp_device_unregister(&port->dev, &zfcp_sysfs_port_attrs); 272 out: 273 zfcp_ccw_adapter_put(adapter); 274 return retval ? retval : (ssize_t) count; 275 } 276 static ZFCP_DEV_ATTR(adapter, port_remove, S_IWUSR, NULL, 277 zfcp_sysfs_port_remove_store); 278 279 static struct attribute *zfcp_adapter_attrs[] = { 280 &dev_attr_adapter_failed.attr, 281 &dev_attr_adapter_in_recovery.attr, 282 &dev_attr_adapter_port_remove.attr, 283 &dev_attr_adapter_port_rescan.attr, 284 &dev_attr_adapter_peer_wwnn.attr, 285 &dev_attr_adapter_peer_wwpn.attr, 286 &dev_attr_adapter_peer_d_id.attr, 287 &dev_attr_adapter_card_version.attr, 288 &dev_attr_adapter_lic_version.attr, 289 &dev_attr_adapter_status.attr, 290 &dev_attr_adapter_hardware_version.attr, 291 NULL 292 }; 293 294 struct attribute_group zfcp_sysfs_adapter_attrs = { 295 .attrs = zfcp_adapter_attrs, 296 }; 297 298 static ssize_t zfcp_sysfs_unit_add_store(struct device *dev, 299 struct device_attribute *attr, 300 const char *buf, size_t count) 301 { 302 struct zfcp_port *port = container_of(dev, struct zfcp_port, dev); 303 u64 fcp_lun; 304 int retval; 305 306 if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun)) 307 return -EINVAL; 308 309 retval = zfcp_unit_add(port, fcp_lun); 310 if (retval) 311 return retval; 312 313 return count; 314 } 315 static DEVICE_ATTR(unit_add, S_IWUSR, NULL, zfcp_sysfs_unit_add_store); 316 317 static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev, 318 struct device_attribute *attr, 319 const char *buf, size_t count) 320 { 321 struct zfcp_port *port = container_of(dev, struct zfcp_port, dev); 322 u64 fcp_lun; 323 324 if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun)) 325 return -EINVAL; 326 327 if (zfcp_unit_remove(port, fcp_lun)) 328 return -EINVAL; 329 330 return count; 331 } 332 static DEVICE_ATTR(unit_remove, S_IWUSR, NULL, zfcp_sysfs_unit_remove_store); 333 334 static struct attribute *zfcp_port_attrs[] = { 335 &dev_attr_unit_add.attr, 336 &dev_attr_unit_remove.attr, 337 &dev_attr_port_failed.attr, 338 &dev_attr_port_in_recovery.attr, 339 &dev_attr_port_status.attr, 340 &dev_attr_port_access_denied.attr, 341 NULL 342 }; 343 344 /** 345 * zfcp_sysfs_port_attrs - sysfs attributes for all other ports 346 */ 347 struct attribute_group zfcp_sysfs_port_attrs = { 348 .attrs = zfcp_port_attrs, 349 }; 350 351 static struct attribute *zfcp_unit_attrs[] = { 352 &dev_attr_unit_failed.attr, 353 &dev_attr_unit_in_recovery.attr, 354 &dev_attr_unit_status.attr, 355 &dev_attr_unit_access_denied.attr, 356 &dev_attr_unit_access_shared.attr, 357 &dev_attr_unit_access_readonly.attr, 358 NULL 359 }; 360 361 struct attribute_group zfcp_sysfs_unit_attrs = { 362 .attrs = zfcp_unit_attrs, 363 }; 364 365 #define ZFCP_DEFINE_LATENCY_ATTR(_name) \ 366 static ssize_t \ 367 zfcp_sysfs_unit_##_name##_latency_show(struct device *dev, \ 368 struct device_attribute *attr, \ 369 char *buf) { \ 370 struct scsi_device *sdev = to_scsi_device(dev); \ 371 struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); \ 372 struct zfcp_latencies *lat = &zfcp_sdev->latencies; \ 373 struct zfcp_adapter *adapter = zfcp_sdev->port->adapter; \ 374 unsigned long long fsum, fmin, fmax, csum, cmin, cmax, cc; \ 375 \ 376 spin_lock_bh(&lat->lock); \ 377 fsum = lat->_name.fabric.sum * adapter->timer_ticks; \ 378 fmin = lat->_name.fabric.min * adapter->timer_ticks; \ 379 fmax = lat->_name.fabric.max * adapter->timer_ticks; \ 380 csum = lat->_name.channel.sum * adapter->timer_ticks; \ 381 cmin = lat->_name.channel.min * adapter->timer_ticks; \ 382 cmax = lat->_name.channel.max * adapter->timer_ticks; \ 383 cc = lat->_name.counter; \ 384 spin_unlock_bh(&lat->lock); \ 385 \ 386 do_div(fsum, 1000); \ 387 do_div(fmin, 1000); \ 388 do_div(fmax, 1000); \ 389 do_div(csum, 1000); \ 390 do_div(cmin, 1000); \ 391 do_div(cmax, 1000); \ 392 \ 393 return sprintf(buf, "%llu %llu %llu %llu %llu %llu %llu\n", \ 394 fmin, fmax, fsum, cmin, cmax, csum, cc); \ 395 } \ 396 static ssize_t \ 397 zfcp_sysfs_unit_##_name##_latency_store(struct device *dev, \ 398 struct device_attribute *attr, \ 399 const char *buf, size_t count) \ 400 { \ 401 struct scsi_device *sdev = to_scsi_device(dev); \ 402 struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); \ 403 struct zfcp_latencies *lat = &zfcp_sdev->latencies; \ 404 unsigned long flags; \ 405 \ 406 spin_lock_irqsave(&lat->lock, flags); \ 407 lat->_name.fabric.sum = 0; \ 408 lat->_name.fabric.min = 0xFFFFFFFF; \ 409 lat->_name.fabric.max = 0; \ 410 lat->_name.channel.sum = 0; \ 411 lat->_name.channel.min = 0xFFFFFFFF; \ 412 lat->_name.channel.max = 0; \ 413 lat->_name.counter = 0; \ 414 spin_unlock_irqrestore(&lat->lock, flags); \ 415 \ 416 return (ssize_t) count; \ 417 } \ 418 static DEVICE_ATTR(_name##_latency, S_IWUSR | S_IRUGO, \ 419 zfcp_sysfs_unit_##_name##_latency_show, \ 420 zfcp_sysfs_unit_##_name##_latency_store); 421 422 ZFCP_DEFINE_LATENCY_ATTR(read); 423 ZFCP_DEFINE_LATENCY_ATTR(write); 424 ZFCP_DEFINE_LATENCY_ATTR(cmd); 425 426 #define ZFCP_DEFINE_SCSI_ATTR(_name, _format, _value) \ 427 static ssize_t zfcp_sysfs_scsi_##_name##_show(struct device *dev, \ 428 struct device_attribute *attr,\ 429 char *buf) \ 430 { \ 431 struct scsi_device *sdev = to_scsi_device(dev); \ 432 struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); \ 433 struct zfcp_port *port = zfcp_sdev->port; \ 434 \ 435 return sprintf(buf, _format, _value); \ 436 } \ 437 static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_scsi_##_name##_show, NULL); 438 439 ZFCP_DEFINE_SCSI_ATTR(hba_id, "%s\n", 440 dev_name(&port->adapter->ccw_device->dev)); 441 ZFCP_DEFINE_SCSI_ATTR(wwpn, "0x%016llx\n", 442 (unsigned long long) port->wwpn); 443 444 static ssize_t zfcp_sysfs_scsi_fcp_lun_show(struct device *dev, 445 struct device_attribute *attr, 446 char *buf) 447 { 448 struct scsi_device *sdev = to_scsi_device(dev); 449 450 return sprintf(buf, "0x%016llx\n", zfcp_scsi_dev_lun(sdev)); 451 } 452 static DEVICE_ATTR(fcp_lun, S_IRUGO, zfcp_sysfs_scsi_fcp_lun_show, NULL); 453 454 struct device_attribute *zfcp_sysfs_sdev_attrs[] = { 455 &dev_attr_fcp_lun, 456 &dev_attr_wwpn, 457 &dev_attr_hba_id, 458 &dev_attr_read_latency, 459 &dev_attr_write_latency, 460 &dev_attr_cmd_latency, 461 NULL 462 }; 463 464 static ssize_t zfcp_sysfs_adapter_util_show(struct device *dev, 465 struct device_attribute *attr, 466 char *buf) 467 { 468 struct Scsi_Host *scsi_host = dev_to_shost(dev); 469 struct fsf_qtcb_bottom_port *qtcb_port; 470 struct zfcp_adapter *adapter; 471 int retval; 472 473 adapter = (struct zfcp_adapter *) scsi_host->hostdata[0]; 474 if (!(adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA)) 475 return -EOPNOTSUPP; 476 477 qtcb_port = kzalloc(sizeof(struct fsf_qtcb_bottom_port), GFP_KERNEL); 478 if (!qtcb_port) 479 return -ENOMEM; 480 481 retval = zfcp_fsf_exchange_port_data_sync(adapter->qdio, qtcb_port); 482 if (!retval) 483 retval = sprintf(buf, "%u %u %u\n", qtcb_port->cp_util, 484 qtcb_port->cb_util, qtcb_port->a_util); 485 kfree(qtcb_port); 486 return retval; 487 } 488 static DEVICE_ATTR(utilization, S_IRUGO, zfcp_sysfs_adapter_util_show, NULL); 489 490 static int zfcp_sysfs_adapter_ex_config(struct device *dev, 491 struct fsf_statistics_info *stat_inf) 492 { 493 struct Scsi_Host *scsi_host = dev_to_shost(dev); 494 struct fsf_qtcb_bottom_config *qtcb_config; 495 struct zfcp_adapter *adapter; 496 int retval; 497 498 adapter = (struct zfcp_adapter *) scsi_host->hostdata[0]; 499 if (!(adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA)) 500 return -EOPNOTSUPP; 501 502 qtcb_config = kzalloc(sizeof(struct fsf_qtcb_bottom_config), 503 GFP_KERNEL); 504 if (!qtcb_config) 505 return -ENOMEM; 506 507 retval = zfcp_fsf_exchange_config_data_sync(adapter->qdio, qtcb_config); 508 if (!retval) 509 *stat_inf = qtcb_config->stat_info; 510 511 kfree(qtcb_config); 512 return retval; 513 } 514 515 #define ZFCP_SHOST_ATTR(_name, _format, _arg...) \ 516 static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \ 517 struct device_attribute *attr,\ 518 char *buf) \ 519 { \ 520 struct fsf_statistics_info stat_info; \ 521 int retval; \ 522 \ 523 retval = zfcp_sysfs_adapter_ex_config(dev, &stat_info); \ 524 if (retval) \ 525 return retval; \ 526 \ 527 return sprintf(buf, _format, ## _arg); \ 528 } \ 529 static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_adapter_##_name##_show, NULL); 530 531 ZFCP_SHOST_ATTR(requests, "%llu %llu %llu\n", 532 (unsigned long long) stat_info.input_req, 533 (unsigned long long) stat_info.output_req, 534 (unsigned long long) stat_info.control_req); 535 536 ZFCP_SHOST_ATTR(megabytes, "%llu %llu\n", 537 (unsigned long long) stat_info.input_mb, 538 (unsigned long long) stat_info.output_mb); 539 540 ZFCP_SHOST_ATTR(seconds_active, "%llu\n", 541 (unsigned long long) stat_info.seconds_act); 542 543 static ssize_t zfcp_sysfs_adapter_q_full_show(struct device *dev, 544 struct device_attribute *attr, 545 char *buf) 546 { 547 struct Scsi_Host *scsi_host = class_to_shost(dev); 548 struct zfcp_qdio *qdio = 549 ((struct zfcp_adapter *) scsi_host->hostdata[0])->qdio; 550 u64 util; 551 552 spin_lock_bh(&qdio->stat_lock); 553 util = qdio->req_q_util; 554 spin_unlock_bh(&qdio->stat_lock); 555 556 return sprintf(buf, "%d %llu\n", atomic_read(&qdio->req_q_full), 557 (unsigned long long)util); 558 } 559 static DEVICE_ATTR(queue_full, S_IRUGO, zfcp_sysfs_adapter_q_full_show, NULL); 560 561 struct device_attribute *zfcp_sysfs_shost_attrs[] = { 562 &dev_attr_utilization, 563 &dev_attr_requests, 564 &dev_attr_megabytes, 565 &dev_attr_seconds_active, 566 &dev_attr_queue_full, 567 NULL 568 }; 569