1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * zfcp device driver 4 * 5 * sysfs attributes. 6 * 7 * Copyright IBM Corp. 2008, 2010 8 */ 9 10 #define KMSG_COMPONENT "zfcp" 11 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt 12 13 #include <linux/slab.h> 14 #include "zfcp_ext.h" 15 16 #define ZFCP_DEV_ATTR(_feat, _name, _mode, _show, _store) \ 17 struct device_attribute dev_attr_##_feat##_##_name = __ATTR(_name, _mode,\ 18 _show, _store) 19 #define ZFCP_DEFINE_ATTR(_feat_def, _feat, _name, _format, _value) \ 20 static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev, \ 21 struct device_attribute *at,\ 22 char *buf) \ 23 { \ 24 struct _feat_def *_feat = container_of(dev, struct _feat_def, dev); \ 25 \ 26 return sprintf(buf, _format, _value); \ 27 } \ 28 static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO, \ 29 zfcp_sysfs_##_feat##_##_name##_show, NULL); 30 31 #define ZFCP_DEFINE_ATTR_CONST(_feat, _name, _format, _value) \ 32 static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev, \ 33 struct device_attribute *at,\ 34 char *buf) \ 35 { \ 36 return sprintf(buf, _format, _value); \ 37 } \ 38 static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO, \ 39 zfcp_sysfs_##_feat##_##_name##_show, NULL); 40 41 #define ZFCP_DEFINE_A_ATTR(_name, _format, _value) \ 42 static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \ 43 struct device_attribute *at,\ 44 char *buf) \ 45 { \ 46 struct ccw_device *cdev = to_ccwdev(dev); \ 47 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); \ 48 int i; \ 49 \ 50 if (!adapter) \ 51 return -ENODEV; \ 52 \ 53 i = sprintf(buf, _format, _value); \ 54 zfcp_ccw_adapter_put(adapter); \ 55 return i; \ 56 } \ 57 static ZFCP_DEV_ATTR(adapter, _name, S_IRUGO, \ 58 zfcp_sysfs_adapter_##_name##_show, NULL); 59 60 ZFCP_DEFINE_A_ATTR(status, "0x%08x\n", atomic_read(&adapter->status)); 61 ZFCP_DEFINE_A_ATTR(peer_wwnn, "0x%016llx\n", 62 (unsigned long long) adapter->peer_wwnn); 63 ZFCP_DEFINE_A_ATTR(peer_wwpn, "0x%016llx\n", 64 (unsigned long long) adapter->peer_wwpn); 65 ZFCP_DEFINE_A_ATTR(peer_d_id, "0x%06x\n", adapter->peer_d_id); 66 ZFCP_DEFINE_A_ATTR(card_version, "0x%04x\n", adapter->hydra_version); 67 ZFCP_DEFINE_A_ATTR(lic_version, "0x%08x\n", adapter->fsf_lic_version); 68 ZFCP_DEFINE_A_ATTR(hardware_version, "0x%08x\n", adapter->hardware_version); 69 ZFCP_DEFINE_A_ATTR(in_recovery, "%d\n", (atomic_read(&adapter->status) & 70 ZFCP_STATUS_COMMON_ERP_INUSE) != 0); 71 72 ZFCP_DEFINE_ATTR(zfcp_port, port, status, "0x%08x\n", 73 atomic_read(&port->status)); 74 ZFCP_DEFINE_ATTR(zfcp_port, port, in_recovery, "%d\n", 75 (atomic_read(&port->status) & 76 ZFCP_STATUS_COMMON_ERP_INUSE) != 0); 77 ZFCP_DEFINE_ATTR_CONST(port, access_denied, "%d\n", 0); 78 79 ZFCP_DEFINE_ATTR(zfcp_unit, unit, status, "0x%08x\n", 80 zfcp_unit_sdev_status(unit)); 81 ZFCP_DEFINE_ATTR(zfcp_unit, unit, in_recovery, "%d\n", 82 (zfcp_unit_sdev_status(unit) & 83 ZFCP_STATUS_COMMON_ERP_INUSE) != 0); 84 ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_denied, "%d\n", 85 (zfcp_unit_sdev_status(unit) & 86 ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0); 87 ZFCP_DEFINE_ATTR_CONST(unit, access_shared, "%d\n", 0); 88 ZFCP_DEFINE_ATTR_CONST(unit, access_readonly, "%d\n", 0); 89 90 static ssize_t zfcp_sysfs_port_failed_show(struct device *dev, 91 struct device_attribute *attr, 92 char *buf) 93 { 94 struct zfcp_port *port = container_of(dev, struct zfcp_port, dev); 95 96 if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_FAILED) 97 return sprintf(buf, "1\n"); 98 99 return sprintf(buf, "0\n"); 100 } 101 102 static ssize_t zfcp_sysfs_port_failed_store(struct device *dev, 103 struct device_attribute *attr, 104 const char *buf, size_t count) 105 { 106 struct zfcp_port *port = container_of(dev, struct zfcp_port, dev); 107 unsigned long val; 108 109 if (kstrtoul(buf, 0, &val) || val != 0) 110 return -EINVAL; 111 112 zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_RUNNING); 113 zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, "sypfai2"); 114 zfcp_erp_wait(port->adapter); 115 116 return count; 117 } 118 static ZFCP_DEV_ATTR(port, failed, S_IWUSR | S_IRUGO, 119 zfcp_sysfs_port_failed_show, 120 zfcp_sysfs_port_failed_store); 121 122 static ssize_t zfcp_sysfs_unit_failed_show(struct device *dev, 123 struct device_attribute *attr, 124 char *buf) 125 { 126 struct zfcp_unit *unit = container_of(dev, struct zfcp_unit, dev); 127 struct scsi_device *sdev; 128 unsigned int status, failed = 1; 129 130 sdev = zfcp_unit_sdev(unit); 131 if (sdev) { 132 status = atomic_read(&sdev_to_zfcp(sdev)->status); 133 failed = status & ZFCP_STATUS_COMMON_ERP_FAILED ? 1 : 0; 134 scsi_device_put(sdev); 135 } 136 137 return sprintf(buf, "%d\n", failed); 138 } 139 140 static ssize_t zfcp_sysfs_unit_failed_store(struct device *dev, 141 struct device_attribute *attr, 142 const char *buf, size_t count) 143 { 144 struct zfcp_unit *unit = container_of(dev, struct zfcp_unit, dev); 145 unsigned long val; 146 struct scsi_device *sdev; 147 148 if (kstrtoul(buf, 0, &val) || val != 0) 149 return -EINVAL; 150 151 sdev = zfcp_unit_sdev(unit); 152 if (sdev) { 153 zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_RUNNING); 154 zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED, 155 "syufai2"); 156 zfcp_erp_wait(unit->port->adapter); 157 } else 158 zfcp_unit_scsi_scan(unit); 159 160 return count; 161 } 162 static ZFCP_DEV_ATTR(unit, failed, S_IWUSR | S_IRUGO, 163 zfcp_sysfs_unit_failed_show, 164 zfcp_sysfs_unit_failed_store); 165 166 static ssize_t zfcp_sysfs_adapter_failed_show(struct device *dev, 167 struct device_attribute *attr, 168 char *buf) 169 { 170 struct ccw_device *cdev = to_ccwdev(dev); 171 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); 172 int i; 173 174 if (!adapter) 175 return -ENODEV; 176 177 if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED) 178 i = sprintf(buf, "1\n"); 179 else 180 i = sprintf(buf, "0\n"); 181 182 zfcp_ccw_adapter_put(adapter); 183 return i; 184 } 185 186 static ssize_t zfcp_sysfs_adapter_failed_store(struct device *dev, 187 struct device_attribute *attr, 188 const char *buf, size_t count) 189 { 190 struct ccw_device *cdev = to_ccwdev(dev); 191 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); 192 unsigned long val; 193 int retval = 0; 194 195 if (!adapter) 196 return -ENODEV; 197 198 if (kstrtoul(buf, 0, &val) || val != 0) { 199 retval = -EINVAL; 200 goto out; 201 } 202 203 zfcp_erp_adapter_reset_sync(adapter, "syafai2"); 204 out: 205 zfcp_ccw_adapter_put(adapter); 206 return retval ? retval : (ssize_t) count; 207 } 208 static ZFCP_DEV_ATTR(adapter, failed, S_IWUSR | S_IRUGO, 209 zfcp_sysfs_adapter_failed_show, 210 zfcp_sysfs_adapter_failed_store); 211 212 static ssize_t zfcp_sysfs_port_rescan_store(struct device *dev, 213 struct device_attribute *attr, 214 const char *buf, size_t count) 215 { 216 struct ccw_device *cdev = to_ccwdev(dev); 217 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); 218 219 if (!adapter) 220 return -ENODEV; 221 222 /* 223 * Users wish is our command: immediately schedule and flush a 224 * worker to conduct a synchronous port scan, that is, neither 225 * a random delay nor a rate limit is applied here. 226 */ 227 queue_delayed_work(adapter->work_queue, &adapter->scan_work, 0); 228 flush_delayed_work(&adapter->scan_work); 229 zfcp_ccw_adapter_put(adapter); 230 231 return (ssize_t) count; 232 } 233 static ZFCP_DEV_ATTR(adapter, port_rescan, S_IWUSR, NULL, 234 zfcp_sysfs_port_rescan_store); 235 236 DEFINE_MUTEX(zfcp_sysfs_port_units_mutex); 237 238 static ssize_t zfcp_sysfs_port_remove_store(struct device *dev, 239 struct device_attribute *attr, 240 const char *buf, size_t count) 241 { 242 struct ccw_device *cdev = to_ccwdev(dev); 243 struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); 244 struct zfcp_port *port; 245 u64 wwpn; 246 int retval = -EINVAL; 247 248 if (!adapter) 249 return -ENODEV; 250 251 if (kstrtoull(buf, 0, (unsigned long long *) &wwpn)) 252 goto out; 253 254 port = zfcp_get_port_by_wwpn(adapter, wwpn); 255 if (!port) 256 goto out; 257 else 258 retval = 0; 259 260 mutex_lock(&zfcp_sysfs_port_units_mutex); 261 if (atomic_read(&port->units) > 0) { 262 retval = -EBUSY; 263 mutex_unlock(&zfcp_sysfs_port_units_mutex); 264 goto out; 265 } 266 /* port is about to be removed, so no more unit_add */ 267 atomic_set(&port->units, -1); 268 mutex_unlock(&zfcp_sysfs_port_units_mutex); 269 270 write_lock_irq(&adapter->port_list_lock); 271 list_del(&port->list); 272 write_unlock_irq(&adapter->port_list_lock); 273 274 put_device(&port->dev); 275 276 zfcp_erp_port_shutdown(port, 0, "syprs_1"); 277 device_unregister(&port->dev); 278 out: 279 zfcp_ccw_adapter_put(adapter); 280 return retval ? retval : (ssize_t) count; 281 } 282 static ZFCP_DEV_ATTR(adapter, port_remove, S_IWUSR, NULL, 283 zfcp_sysfs_port_remove_store); 284 285 static struct attribute *zfcp_adapter_attrs[] = { 286 &dev_attr_adapter_failed.attr, 287 &dev_attr_adapter_in_recovery.attr, 288 &dev_attr_adapter_port_remove.attr, 289 &dev_attr_adapter_port_rescan.attr, 290 &dev_attr_adapter_peer_wwnn.attr, 291 &dev_attr_adapter_peer_wwpn.attr, 292 &dev_attr_adapter_peer_d_id.attr, 293 &dev_attr_adapter_card_version.attr, 294 &dev_attr_adapter_lic_version.attr, 295 &dev_attr_adapter_status.attr, 296 &dev_attr_adapter_hardware_version.attr, 297 NULL 298 }; 299 300 struct attribute_group zfcp_sysfs_adapter_attrs = { 301 .attrs = zfcp_adapter_attrs, 302 }; 303 304 static ssize_t zfcp_sysfs_unit_add_store(struct device *dev, 305 struct device_attribute *attr, 306 const char *buf, size_t count) 307 { 308 struct zfcp_port *port = container_of(dev, struct zfcp_port, dev); 309 u64 fcp_lun; 310 int retval; 311 312 if (kstrtoull(buf, 0, (unsigned long long *) &fcp_lun)) 313 return -EINVAL; 314 315 retval = zfcp_unit_add(port, fcp_lun); 316 if (retval) 317 return retval; 318 319 return count; 320 } 321 static DEVICE_ATTR(unit_add, S_IWUSR, NULL, zfcp_sysfs_unit_add_store); 322 323 static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev, 324 struct device_attribute *attr, 325 const char *buf, size_t count) 326 { 327 struct zfcp_port *port = container_of(dev, struct zfcp_port, dev); 328 u64 fcp_lun; 329 330 if (kstrtoull(buf, 0, (unsigned long long *) &fcp_lun)) 331 return -EINVAL; 332 333 if (zfcp_unit_remove(port, fcp_lun)) 334 return -EINVAL; 335 336 return count; 337 } 338 static DEVICE_ATTR(unit_remove, S_IWUSR, NULL, zfcp_sysfs_unit_remove_store); 339 340 static struct attribute *zfcp_port_attrs[] = { 341 &dev_attr_unit_add.attr, 342 &dev_attr_unit_remove.attr, 343 &dev_attr_port_failed.attr, 344 &dev_attr_port_in_recovery.attr, 345 &dev_attr_port_status.attr, 346 &dev_attr_port_access_denied.attr, 347 NULL 348 }; 349 static struct attribute_group zfcp_port_attr_group = { 350 .attrs = zfcp_port_attrs, 351 }; 352 const struct attribute_group *zfcp_port_attr_groups[] = { 353 &zfcp_port_attr_group, 354 NULL, 355 }; 356 357 static struct attribute *zfcp_unit_attrs[] = { 358 &dev_attr_unit_failed.attr, 359 &dev_attr_unit_in_recovery.attr, 360 &dev_attr_unit_status.attr, 361 &dev_attr_unit_access_denied.attr, 362 &dev_attr_unit_access_shared.attr, 363 &dev_attr_unit_access_readonly.attr, 364 NULL 365 }; 366 static struct attribute_group zfcp_unit_attr_group = { 367 .attrs = zfcp_unit_attrs, 368 }; 369 const struct attribute_group *zfcp_unit_attr_groups[] = { 370 &zfcp_unit_attr_group, 371 NULL, 372 }; 373 374 #define ZFCP_DEFINE_LATENCY_ATTR(_name) \ 375 static ssize_t \ 376 zfcp_sysfs_unit_##_name##_latency_show(struct device *dev, \ 377 struct device_attribute *attr, \ 378 char *buf) { \ 379 struct scsi_device *sdev = to_scsi_device(dev); \ 380 struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); \ 381 struct zfcp_latencies *lat = &zfcp_sdev->latencies; \ 382 struct zfcp_adapter *adapter = zfcp_sdev->port->adapter; \ 383 unsigned long long fsum, fmin, fmax, csum, cmin, cmax, cc; \ 384 \ 385 spin_lock_bh(&lat->lock); \ 386 fsum = lat->_name.fabric.sum * adapter->timer_ticks; \ 387 fmin = lat->_name.fabric.min * adapter->timer_ticks; \ 388 fmax = lat->_name.fabric.max * adapter->timer_ticks; \ 389 csum = lat->_name.channel.sum * adapter->timer_ticks; \ 390 cmin = lat->_name.channel.min * adapter->timer_ticks; \ 391 cmax = lat->_name.channel.max * adapter->timer_ticks; \ 392 cc = lat->_name.counter; \ 393 spin_unlock_bh(&lat->lock); \ 394 \ 395 do_div(fsum, 1000); \ 396 do_div(fmin, 1000); \ 397 do_div(fmax, 1000); \ 398 do_div(csum, 1000); \ 399 do_div(cmin, 1000); \ 400 do_div(cmax, 1000); \ 401 \ 402 return sprintf(buf, "%llu %llu %llu %llu %llu %llu %llu\n", \ 403 fmin, fmax, fsum, cmin, cmax, csum, cc); \ 404 } \ 405 static ssize_t \ 406 zfcp_sysfs_unit_##_name##_latency_store(struct device *dev, \ 407 struct device_attribute *attr, \ 408 const char *buf, size_t count) \ 409 { \ 410 struct scsi_device *sdev = to_scsi_device(dev); \ 411 struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); \ 412 struct zfcp_latencies *lat = &zfcp_sdev->latencies; \ 413 unsigned long flags; \ 414 \ 415 spin_lock_irqsave(&lat->lock, flags); \ 416 lat->_name.fabric.sum = 0; \ 417 lat->_name.fabric.min = 0xFFFFFFFF; \ 418 lat->_name.fabric.max = 0; \ 419 lat->_name.channel.sum = 0; \ 420 lat->_name.channel.min = 0xFFFFFFFF; \ 421 lat->_name.channel.max = 0; \ 422 lat->_name.counter = 0; \ 423 spin_unlock_irqrestore(&lat->lock, flags); \ 424 \ 425 return (ssize_t) count; \ 426 } \ 427 static DEVICE_ATTR(_name##_latency, S_IWUSR | S_IRUGO, \ 428 zfcp_sysfs_unit_##_name##_latency_show, \ 429 zfcp_sysfs_unit_##_name##_latency_store); 430 431 ZFCP_DEFINE_LATENCY_ATTR(read); 432 ZFCP_DEFINE_LATENCY_ATTR(write); 433 ZFCP_DEFINE_LATENCY_ATTR(cmd); 434 435 #define ZFCP_DEFINE_SCSI_ATTR(_name, _format, _value) \ 436 static ssize_t zfcp_sysfs_scsi_##_name##_show(struct device *dev, \ 437 struct device_attribute *attr,\ 438 char *buf) \ 439 { \ 440 struct scsi_device *sdev = to_scsi_device(dev); \ 441 struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); \ 442 \ 443 return sprintf(buf, _format, _value); \ 444 } \ 445 static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_scsi_##_name##_show, NULL); 446 447 ZFCP_DEFINE_SCSI_ATTR(hba_id, "%s\n", 448 dev_name(&zfcp_sdev->port->adapter->ccw_device->dev)); 449 ZFCP_DEFINE_SCSI_ATTR(wwpn, "0x%016llx\n", 450 (unsigned long long) zfcp_sdev->port->wwpn); 451 452 static ssize_t zfcp_sysfs_scsi_fcp_lun_show(struct device *dev, 453 struct device_attribute *attr, 454 char *buf) 455 { 456 struct scsi_device *sdev = to_scsi_device(dev); 457 458 return sprintf(buf, "0x%016llx\n", zfcp_scsi_dev_lun(sdev)); 459 } 460 static DEVICE_ATTR(fcp_lun, S_IRUGO, zfcp_sysfs_scsi_fcp_lun_show, NULL); 461 462 ZFCP_DEFINE_SCSI_ATTR(zfcp_access_denied, "%d\n", 463 (atomic_read(&zfcp_sdev->status) & 464 ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0); 465 466 static ssize_t zfcp_sysfs_scsi_zfcp_failed_show(struct device *dev, 467 struct device_attribute *attr, 468 char *buf) 469 { 470 struct scsi_device *sdev = to_scsi_device(dev); 471 unsigned int status = atomic_read(&sdev_to_zfcp(sdev)->status); 472 unsigned int failed = status & ZFCP_STATUS_COMMON_ERP_FAILED ? 1 : 0; 473 474 return sprintf(buf, "%d\n", failed); 475 } 476 477 static ssize_t zfcp_sysfs_scsi_zfcp_failed_store(struct device *dev, 478 struct device_attribute *attr, 479 const char *buf, size_t count) 480 { 481 struct scsi_device *sdev = to_scsi_device(dev); 482 unsigned long val; 483 484 if (kstrtoul(buf, 0, &val) || val != 0) 485 return -EINVAL; 486 487 zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_RUNNING); 488 zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED, 489 "syufai3"); 490 zfcp_erp_wait(sdev_to_zfcp(sdev)->port->adapter); 491 492 return count; 493 } 494 static DEVICE_ATTR(zfcp_failed, S_IWUSR | S_IRUGO, 495 zfcp_sysfs_scsi_zfcp_failed_show, 496 zfcp_sysfs_scsi_zfcp_failed_store); 497 498 ZFCP_DEFINE_SCSI_ATTR(zfcp_in_recovery, "%d\n", 499 (atomic_read(&zfcp_sdev->status) & 500 ZFCP_STATUS_COMMON_ERP_INUSE) != 0); 501 502 ZFCP_DEFINE_SCSI_ATTR(zfcp_status, "0x%08x\n", 503 atomic_read(&zfcp_sdev->status)); 504 505 struct device_attribute *zfcp_sysfs_sdev_attrs[] = { 506 &dev_attr_fcp_lun, 507 &dev_attr_wwpn, 508 &dev_attr_hba_id, 509 &dev_attr_read_latency, 510 &dev_attr_write_latency, 511 &dev_attr_cmd_latency, 512 &dev_attr_zfcp_access_denied, 513 &dev_attr_zfcp_failed, 514 &dev_attr_zfcp_in_recovery, 515 &dev_attr_zfcp_status, 516 NULL 517 }; 518 519 static ssize_t zfcp_sysfs_adapter_util_show(struct device *dev, 520 struct device_attribute *attr, 521 char *buf) 522 { 523 struct Scsi_Host *scsi_host = dev_to_shost(dev); 524 struct fsf_qtcb_bottom_port *qtcb_port; 525 struct zfcp_adapter *adapter; 526 int retval; 527 528 adapter = (struct zfcp_adapter *) scsi_host->hostdata[0]; 529 if (!(adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA)) 530 return -EOPNOTSUPP; 531 532 qtcb_port = kzalloc(sizeof(struct fsf_qtcb_bottom_port), GFP_KERNEL); 533 if (!qtcb_port) 534 return -ENOMEM; 535 536 retval = zfcp_fsf_exchange_port_data_sync(adapter->qdio, qtcb_port); 537 if (!retval) 538 retval = sprintf(buf, "%u %u %u\n", qtcb_port->cp_util, 539 qtcb_port->cb_util, qtcb_port->a_util); 540 kfree(qtcb_port); 541 return retval; 542 } 543 static DEVICE_ATTR(utilization, S_IRUGO, zfcp_sysfs_adapter_util_show, NULL); 544 545 static int zfcp_sysfs_adapter_ex_config(struct device *dev, 546 struct fsf_statistics_info *stat_inf) 547 { 548 struct Scsi_Host *scsi_host = dev_to_shost(dev); 549 struct fsf_qtcb_bottom_config *qtcb_config; 550 struct zfcp_adapter *adapter; 551 int retval; 552 553 adapter = (struct zfcp_adapter *) scsi_host->hostdata[0]; 554 if (!(adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA)) 555 return -EOPNOTSUPP; 556 557 qtcb_config = kzalloc(sizeof(struct fsf_qtcb_bottom_config), 558 GFP_KERNEL); 559 if (!qtcb_config) 560 return -ENOMEM; 561 562 retval = zfcp_fsf_exchange_config_data_sync(adapter->qdio, qtcb_config); 563 if (!retval) 564 *stat_inf = qtcb_config->stat_info; 565 566 kfree(qtcb_config); 567 return retval; 568 } 569 570 #define ZFCP_SHOST_ATTR(_name, _format, _arg...) \ 571 static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \ 572 struct device_attribute *attr,\ 573 char *buf) \ 574 { \ 575 struct fsf_statistics_info stat_info; \ 576 int retval; \ 577 \ 578 retval = zfcp_sysfs_adapter_ex_config(dev, &stat_info); \ 579 if (retval) \ 580 return retval; \ 581 \ 582 return sprintf(buf, _format, ## _arg); \ 583 } \ 584 static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_adapter_##_name##_show, NULL); 585 586 ZFCP_SHOST_ATTR(requests, "%llu %llu %llu\n", 587 (unsigned long long) stat_info.input_req, 588 (unsigned long long) stat_info.output_req, 589 (unsigned long long) stat_info.control_req); 590 591 ZFCP_SHOST_ATTR(megabytes, "%llu %llu\n", 592 (unsigned long long) stat_info.input_mb, 593 (unsigned long long) stat_info.output_mb); 594 595 ZFCP_SHOST_ATTR(seconds_active, "%llu\n", 596 (unsigned long long) stat_info.seconds_act); 597 598 static ssize_t zfcp_sysfs_adapter_q_full_show(struct device *dev, 599 struct device_attribute *attr, 600 char *buf) 601 { 602 struct Scsi_Host *scsi_host = class_to_shost(dev); 603 struct zfcp_qdio *qdio = 604 ((struct zfcp_adapter *) scsi_host->hostdata[0])->qdio; 605 u64 util; 606 607 spin_lock_bh(&qdio->stat_lock); 608 util = qdio->req_q_util; 609 spin_unlock_bh(&qdio->stat_lock); 610 611 return sprintf(buf, "%d %llu\n", atomic_read(&qdio->req_q_full), 612 (unsigned long long)util); 613 } 614 static DEVICE_ATTR(queue_full, S_IRUGO, zfcp_sysfs_adapter_q_full_show, NULL); 615 616 struct device_attribute *zfcp_sysfs_shost_attrs[] = { 617 &dev_attr_utilization, 618 &dev_attr_requests, 619 &dev_attr_megabytes, 620 &dev_attr_seconds_active, 621 &dev_attr_queue_full, 622 NULL 623 }; 624