1 /* 2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. 3 * Copyright (c) 2005 Mellanox Technologies Ltd. All rights reserved. 4 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 5 * 6 * This software is available to you under a choice of one of two 7 * licenses. You may choose to be licensed under the terms of the GNU 8 * General Public License (GPL) Version 2, available from the file 9 * COPYING in the main directory of this source tree, or the 10 * OpenIB.org BSD license below: 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 16 * - Redistributions of source code must retain the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer. 19 * 20 * - Redistributions in binary form must reproduce the above 21 * copyright notice, this list of conditions and the following 22 * disclaimer in the documentation and/or other materials 23 * provided with the distribution. 24 * 25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32 * SOFTWARE. 33 * 34 * $Id: sysfs.c 1349 2004-12-16 21:09:43Z roland $ 35 */ 36 37 #include "core_priv.h" 38 39 #include <rdma/ib_mad.h> 40 41 struct ib_port { 42 struct kobject kobj; 43 struct ib_device *ibdev; 44 struct attribute_group gid_group; 45 struct attribute_group pkey_group; 46 u8 port_num; 47 }; 48 49 struct port_attribute { 50 struct attribute attr; 51 ssize_t (*show)(struct ib_port *, struct port_attribute *, char *buf); 52 ssize_t (*store)(struct ib_port *, struct port_attribute *, 53 const char *buf, size_t count); 54 }; 55 56 #define PORT_ATTR(_name, _mode, _show, _store) \ 57 struct port_attribute port_attr_##_name = __ATTR(_name, _mode, _show, _store) 58 59 #define PORT_ATTR_RO(_name) \ 60 struct port_attribute port_attr_##_name = __ATTR_RO(_name) 61 62 struct port_table_attribute { 63 struct port_attribute attr; 64 char name[8]; 65 int index; 66 }; 67 68 static ssize_t port_attr_show(struct kobject *kobj, 69 struct attribute *attr, char *buf) 70 { 71 struct port_attribute *port_attr = 72 container_of(attr, struct port_attribute, attr); 73 struct ib_port *p = container_of(kobj, struct ib_port, kobj); 74 75 if (!port_attr->show) 76 return -EIO; 77 78 return port_attr->show(p, port_attr, buf); 79 } 80 81 static struct sysfs_ops port_sysfs_ops = { 82 .show = port_attr_show 83 }; 84 85 static ssize_t state_show(struct ib_port *p, struct port_attribute *unused, 86 char *buf) 87 { 88 struct ib_port_attr attr; 89 ssize_t ret; 90 91 static const char *state_name[] = { 92 [IB_PORT_NOP] = "NOP", 93 [IB_PORT_DOWN] = "DOWN", 94 [IB_PORT_INIT] = "INIT", 95 [IB_PORT_ARMED] = "ARMED", 96 [IB_PORT_ACTIVE] = "ACTIVE", 97 [IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER" 98 }; 99 100 ret = ib_query_port(p->ibdev, p->port_num, &attr); 101 if (ret) 102 return ret; 103 104 return sprintf(buf, "%d: %s\n", attr.state, 105 attr.state >= 0 && attr.state <= ARRAY_SIZE(state_name) ? 106 state_name[attr.state] : "UNKNOWN"); 107 } 108 109 static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused, 110 char *buf) 111 { 112 struct ib_port_attr attr; 113 ssize_t ret; 114 115 ret = ib_query_port(p->ibdev, p->port_num, &attr); 116 if (ret) 117 return ret; 118 119 return sprintf(buf, "0x%x\n", attr.lid); 120 } 121 122 static ssize_t lid_mask_count_show(struct ib_port *p, 123 struct port_attribute *unused, 124 char *buf) 125 { 126 struct ib_port_attr attr; 127 ssize_t ret; 128 129 ret = ib_query_port(p->ibdev, p->port_num, &attr); 130 if (ret) 131 return ret; 132 133 return sprintf(buf, "%d\n", attr.lmc); 134 } 135 136 static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused, 137 char *buf) 138 { 139 struct ib_port_attr attr; 140 ssize_t ret; 141 142 ret = ib_query_port(p->ibdev, p->port_num, &attr); 143 if (ret) 144 return ret; 145 146 return sprintf(buf, "0x%x\n", attr.sm_lid); 147 } 148 149 static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused, 150 char *buf) 151 { 152 struct ib_port_attr attr; 153 ssize_t ret; 154 155 ret = ib_query_port(p->ibdev, p->port_num, &attr); 156 if (ret) 157 return ret; 158 159 return sprintf(buf, "%d\n", attr.sm_sl); 160 } 161 162 static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused, 163 char *buf) 164 { 165 struct ib_port_attr attr; 166 ssize_t ret; 167 168 ret = ib_query_port(p->ibdev, p->port_num, &attr); 169 if (ret) 170 return ret; 171 172 return sprintf(buf, "0x%08x\n", attr.port_cap_flags); 173 } 174 175 static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, 176 char *buf) 177 { 178 struct ib_port_attr attr; 179 char *speed = ""; 180 int rate; 181 ssize_t ret; 182 183 ret = ib_query_port(p->ibdev, p->port_num, &attr); 184 if (ret) 185 return ret; 186 187 switch (attr.active_speed) { 188 case 2: speed = " DDR"; break; 189 case 4: speed = " QDR"; break; 190 } 191 192 rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed; 193 if (rate < 0) 194 return -EINVAL; 195 196 return sprintf(buf, "%d%s Gb/sec (%dX%s)\n", 197 rate / 10, rate % 10 ? ".5" : "", 198 ib_width_enum_to_int(attr.active_width), speed); 199 } 200 201 static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused, 202 char *buf) 203 { 204 struct ib_port_attr attr; 205 206 ssize_t ret; 207 208 ret = ib_query_port(p->ibdev, p->port_num, &attr); 209 if (ret) 210 return ret; 211 212 switch (attr.phys_state) { 213 case 1: return sprintf(buf, "1: Sleep\n"); 214 case 2: return sprintf(buf, "2: Polling\n"); 215 case 3: return sprintf(buf, "3: Disabled\n"); 216 case 4: return sprintf(buf, "4: PortConfigurationTraining\n"); 217 case 5: return sprintf(buf, "5: LinkUp\n"); 218 case 6: return sprintf(buf, "6: LinkErrorRecovery\n"); 219 case 7: return sprintf(buf, "7: Phy Test\n"); 220 default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state); 221 } 222 } 223 224 static PORT_ATTR_RO(state); 225 static PORT_ATTR_RO(lid); 226 static PORT_ATTR_RO(lid_mask_count); 227 static PORT_ATTR_RO(sm_lid); 228 static PORT_ATTR_RO(sm_sl); 229 static PORT_ATTR_RO(cap_mask); 230 static PORT_ATTR_RO(rate); 231 static PORT_ATTR_RO(phys_state); 232 233 static struct attribute *port_default_attrs[] = { 234 &port_attr_state.attr, 235 &port_attr_lid.attr, 236 &port_attr_lid_mask_count.attr, 237 &port_attr_sm_lid.attr, 238 &port_attr_sm_sl.attr, 239 &port_attr_cap_mask.attr, 240 &port_attr_rate.attr, 241 &port_attr_phys_state.attr, 242 NULL 243 }; 244 245 static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr, 246 char *buf) 247 { 248 struct port_table_attribute *tab_attr = 249 container_of(attr, struct port_table_attribute, attr); 250 union ib_gid gid; 251 ssize_t ret; 252 253 ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid); 254 if (ret) 255 return ret; 256 257 return sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n", 258 be16_to_cpu(((__be16 *) gid.raw)[0]), 259 be16_to_cpu(((__be16 *) gid.raw)[1]), 260 be16_to_cpu(((__be16 *) gid.raw)[2]), 261 be16_to_cpu(((__be16 *) gid.raw)[3]), 262 be16_to_cpu(((__be16 *) gid.raw)[4]), 263 be16_to_cpu(((__be16 *) gid.raw)[5]), 264 be16_to_cpu(((__be16 *) gid.raw)[6]), 265 be16_to_cpu(((__be16 *) gid.raw)[7])); 266 } 267 268 static ssize_t show_port_pkey(struct ib_port *p, struct port_attribute *attr, 269 char *buf) 270 { 271 struct port_table_attribute *tab_attr = 272 container_of(attr, struct port_table_attribute, attr); 273 u16 pkey; 274 ssize_t ret; 275 276 ret = ib_query_pkey(p->ibdev, p->port_num, tab_attr->index, &pkey); 277 if (ret) 278 return ret; 279 280 return sprintf(buf, "0x%04x\n", pkey); 281 } 282 283 #define PORT_PMA_ATTR(_name, _counter, _width, _offset) \ 284 struct port_table_attribute port_pma_attr_##_name = { \ 285 .attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \ 286 .index = (_offset) | ((_width) << 16) | ((_counter) << 24) \ 287 } 288 289 static ssize_t show_pma_counter(struct ib_port *p, struct port_attribute *attr, 290 char *buf) 291 { 292 struct port_table_attribute *tab_attr = 293 container_of(attr, struct port_table_attribute, attr); 294 int offset = tab_attr->index & 0xffff; 295 int width = (tab_attr->index >> 16) & 0xff; 296 struct ib_mad *in_mad = NULL; 297 struct ib_mad *out_mad = NULL; 298 ssize_t ret; 299 300 if (!p->ibdev->process_mad) 301 return sprintf(buf, "N/A (no PMA)\n"); 302 303 in_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); 304 out_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); 305 if (!in_mad || !out_mad) { 306 ret = -ENOMEM; 307 goto out; 308 } 309 310 memset(in_mad, 0, sizeof *in_mad); 311 in_mad->mad_hdr.base_version = 1; 312 in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT; 313 in_mad->mad_hdr.class_version = 1; 314 in_mad->mad_hdr.method = IB_MGMT_METHOD_GET; 315 in_mad->mad_hdr.attr_id = cpu_to_be16(0x12); /* PortCounters */ 316 317 in_mad->data[41] = p->port_num; /* PortSelect field */ 318 319 if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY, 320 p->port_num, NULL, NULL, in_mad, out_mad) & 321 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) != 322 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) { 323 ret = -EINVAL; 324 goto out; 325 } 326 327 switch (width) { 328 case 4: 329 ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >> 330 (offset % 4)) & 0xf); 331 break; 332 case 8: 333 ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]); 334 break; 335 case 16: 336 ret = sprintf(buf, "%u\n", 337 be16_to_cpup((__be16 *)(out_mad->data + 40 + offset / 8))); 338 break; 339 case 32: 340 ret = sprintf(buf, "%u\n", 341 be32_to_cpup((__be32 *)(out_mad->data + 40 + offset / 8))); 342 break; 343 default: 344 ret = 0; 345 } 346 347 out: 348 kfree(in_mad); 349 kfree(out_mad); 350 351 return ret; 352 } 353 354 static PORT_PMA_ATTR(symbol_error , 0, 16, 32); 355 static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48); 356 static PORT_PMA_ATTR(link_downed , 2, 8, 56); 357 static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64); 358 static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80); 359 static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96); 360 static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112); 361 static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128); 362 static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136); 363 static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152); 364 static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156); 365 static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176); 366 static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192); 367 static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224); 368 static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256); 369 static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288); 370 371 static struct attribute *pma_attrs[] = { 372 &port_pma_attr_symbol_error.attr.attr, 373 &port_pma_attr_link_error_recovery.attr.attr, 374 &port_pma_attr_link_downed.attr.attr, 375 &port_pma_attr_port_rcv_errors.attr.attr, 376 &port_pma_attr_port_rcv_remote_physical_errors.attr.attr, 377 &port_pma_attr_port_rcv_switch_relay_errors.attr.attr, 378 &port_pma_attr_port_xmit_discards.attr.attr, 379 &port_pma_attr_port_xmit_constraint_errors.attr.attr, 380 &port_pma_attr_port_rcv_constraint_errors.attr.attr, 381 &port_pma_attr_local_link_integrity_errors.attr.attr, 382 &port_pma_attr_excessive_buffer_overrun_errors.attr.attr, 383 &port_pma_attr_VL15_dropped.attr.attr, 384 &port_pma_attr_port_xmit_data.attr.attr, 385 &port_pma_attr_port_rcv_data.attr.attr, 386 &port_pma_attr_port_xmit_packets.attr.attr, 387 &port_pma_attr_port_rcv_packets.attr.attr, 388 NULL 389 }; 390 391 static struct attribute_group pma_group = { 392 .name = "counters", 393 .attrs = pma_attrs 394 }; 395 396 static void ib_port_release(struct kobject *kobj) 397 { 398 struct ib_port *p = container_of(kobj, struct ib_port, kobj); 399 struct attribute *a; 400 int i; 401 402 for (i = 0; (a = p->gid_group.attrs[i]); ++i) 403 kfree(a); 404 405 kfree(p->gid_group.attrs); 406 407 for (i = 0; (a = p->pkey_group.attrs[i]); ++i) 408 kfree(a); 409 410 kfree(p->pkey_group.attrs); 411 412 kfree(p); 413 } 414 415 static struct kobj_type port_type = { 416 .release = ib_port_release, 417 .sysfs_ops = &port_sysfs_ops, 418 .default_attrs = port_default_attrs 419 }; 420 421 static void ib_device_release(struct class_device *cdev) 422 { 423 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); 424 425 kfree(dev); 426 } 427 428 static int ib_device_hotplug(struct class_device *cdev, char **envp, 429 int num_envp, char *buf, int size) 430 { 431 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); 432 int i = 0, len = 0; 433 434 if (add_hotplug_env_var(envp, num_envp, &i, buf, size, &len, 435 "NAME=%s", dev->name)) 436 return -ENOMEM; 437 438 /* 439 * It might be nice to pass the node GUID to hotplug, but 440 * right now the only way to get it is to query the device 441 * provider, and this can crash during device removal because 442 * we are will be running after driver removal has started. 443 * We could add a node_guid field to struct ib_device, or we 444 * could just let the hotplug script read the node GUID from 445 * sysfs when devices are added. 446 */ 447 448 envp[i] = NULL; 449 return 0; 450 } 451 452 static struct attribute ** 453 alloc_group_attrs(ssize_t (*show)(struct ib_port *, 454 struct port_attribute *, char *buf), 455 int len) 456 { 457 struct attribute **tab_attr; 458 struct port_table_attribute *element; 459 int i; 460 461 tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL); 462 if (!tab_attr) 463 return NULL; 464 465 for (i = 0; i < len; i++) { 466 element = kcalloc(1, sizeof(struct port_table_attribute), 467 GFP_KERNEL); 468 if (!element) 469 goto err; 470 471 if (snprintf(element->name, sizeof(element->name), 472 "%d", i) >= sizeof(element->name)) 473 goto err; 474 475 element->attr.attr.name = element->name; 476 element->attr.attr.mode = S_IRUGO; 477 element->attr.attr.owner = THIS_MODULE; 478 element->attr.show = show; 479 element->index = i; 480 481 tab_attr[i] = &element->attr.attr; 482 } 483 484 return tab_attr; 485 486 err: 487 while (--i >= 0) 488 kfree(tab_attr[i]); 489 kfree(tab_attr); 490 return NULL; 491 } 492 493 static int add_port(struct ib_device *device, int port_num) 494 { 495 struct ib_port *p; 496 struct ib_port_attr attr; 497 int i; 498 int ret; 499 500 ret = ib_query_port(device, port_num, &attr); 501 if (ret) 502 return ret; 503 504 p = kmalloc(sizeof *p, GFP_KERNEL); 505 if (!p) 506 return -ENOMEM; 507 memset(p, 0, sizeof *p); 508 509 p->ibdev = device; 510 p->port_num = port_num; 511 p->kobj.ktype = &port_type; 512 513 p->kobj.parent = kobject_get(&device->ports_parent); 514 if (!p->kobj.parent) { 515 ret = -EBUSY; 516 goto err; 517 } 518 519 ret = kobject_set_name(&p->kobj, "%d", port_num); 520 if (ret) 521 goto err_put; 522 523 ret = kobject_register(&p->kobj); 524 if (ret) 525 goto err_put; 526 527 ret = sysfs_create_group(&p->kobj, &pma_group); 528 if (ret) 529 goto err_put; 530 531 p->gid_group.name = "gids"; 532 p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len); 533 if (!p->gid_group.attrs) 534 goto err_remove_pma; 535 536 ret = sysfs_create_group(&p->kobj, &p->gid_group); 537 if (ret) 538 goto err_free_gid; 539 540 p->pkey_group.name = "pkeys"; 541 p->pkey_group.attrs = alloc_group_attrs(show_port_pkey, 542 attr.pkey_tbl_len); 543 if (!p->pkey_group.attrs) 544 goto err_remove_gid; 545 546 ret = sysfs_create_group(&p->kobj, &p->pkey_group); 547 if (ret) 548 goto err_free_pkey; 549 550 list_add_tail(&p->kobj.entry, &device->port_list); 551 552 return 0; 553 554 err_free_pkey: 555 for (i = 0; i < attr.pkey_tbl_len; ++i) 556 kfree(p->pkey_group.attrs[i]); 557 558 kfree(p->pkey_group.attrs); 559 560 err_remove_gid: 561 sysfs_remove_group(&p->kobj, &p->gid_group); 562 563 err_free_gid: 564 for (i = 0; i < attr.gid_tbl_len; ++i) 565 kfree(p->gid_group.attrs[i]); 566 567 kfree(p->gid_group.attrs); 568 569 err_remove_pma: 570 sysfs_remove_group(&p->kobj, &pma_group); 571 572 err_put: 573 kobject_put(&device->ports_parent); 574 575 err: 576 kfree(p); 577 return ret; 578 } 579 580 static ssize_t show_node_type(struct class_device *cdev, char *buf) 581 { 582 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); 583 584 switch (dev->node_type) { 585 case IB_NODE_CA: return sprintf(buf, "%d: CA\n", dev->node_type); 586 case IB_NODE_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); 587 case IB_NODE_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); 588 default: return sprintf(buf, "%d: <unknown>\n", dev->node_type); 589 } 590 } 591 592 static ssize_t show_sys_image_guid(struct class_device *cdev, char *buf) 593 { 594 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); 595 struct ib_device_attr attr; 596 ssize_t ret; 597 598 ret = ib_query_device(dev, &attr); 599 if (ret) 600 return ret; 601 602 return sprintf(buf, "%04x:%04x:%04x:%04x\n", 603 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[0]), 604 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[1]), 605 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[2]), 606 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[3])); 607 } 608 609 static ssize_t show_node_guid(struct class_device *cdev, char *buf) 610 { 611 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); 612 struct ib_device_attr attr; 613 ssize_t ret; 614 615 ret = ib_query_device(dev, &attr); 616 if (ret) 617 return ret; 618 619 return sprintf(buf, "%04x:%04x:%04x:%04x\n", 620 be16_to_cpu(((__be16 *) &attr.node_guid)[0]), 621 be16_to_cpu(((__be16 *) &attr.node_guid)[1]), 622 be16_to_cpu(((__be16 *) &attr.node_guid)[2]), 623 be16_to_cpu(((__be16 *) &attr.node_guid)[3])); 624 } 625 626 static CLASS_DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL); 627 static CLASS_DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL); 628 static CLASS_DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL); 629 630 static struct class_device_attribute *ib_class_attributes[] = { 631 &class_device_attr_node_type, 632 &class_device_attr_sys_image_guid, 633 &class_device_attr_node_guid 634 }; 635 636 static struct class ib_class = { 637 .name = "infiniband", 638 .release = ib_device_release, 639 .hotplug = ib_device_hotplug, 640 }; 641 642 int ib_device_register_sysfs(struct ib_device *device) 643 { 644 struct class_device *class_dev = &device->class_dev; 645 int ret; 646 int i; 647 648 class_dev->class = &ib_class; 649 class_dev->class_data = device; 650 strlcpy(class_dev->class_id, device->name, BUS_ID_SIZE); 651 652 INIT_LIST_HEAD(&device->port_list); 653 654 ret = class_device_register(class_dev); 655 if (ret) 656 goto err; 657 658 for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) { 659 ret = class_device_create_file(class_dev, ib_class_attributes[i]); 660 if (ret) 661 goto err_unregister; 662 } 663 664 device->ports_parent.parent = kobject_get(&class_dev->kobj); 665 if (!device->ports_parent.parent) { 666 ret = -EBUSY; 667 goto err_unregister; 668 } 669 ret = kobject_set_name(&device->ports_parent, "ports"); 670 if (ret) 671 goto err_put; 672 ret = kobject_register(&device->ports_parent); 673 if (ret) 674 goto err_put; 675 676 if (device->node_type == IB_NODE_SWITCH) { 677 ret = add_port(device, 0); 678 if (ret) 679 goto err_put; 680 } else { 681 int i; 682 683 for (i = 1; i <= device->phys_port_cnt; ++i) { 684 ret = add_port(device, i); 685 if (ret) 686 goto err_put; 687 } 688 } 689 690 return 0; 691 692 err_put: 693 { 694 struct kobject *p, *t; 695 struct ib_port *port; 696 697 list_for_each_entry_safe(p, t, &device->port_list, entry) { 698 list_del(&p->entry); 699 port = container_of(p, struct ib_port, kobj); 700 sysfs_remove_group(p, &pma_group); 701 sysfs_remove_group(p, &port->pkey_group); 702 sysfs_remove_group(p, &port->gid_group); 703 kobject_unregister(p); 704 } 705 } 706 707 kobject_put(&class_dev->kobj); 708 709 err_unregister: 710 class_device_unregister(class_dev); 711 712 err: 713 return ret; 714 } 715 716 void ib_device_unregister_sysfs(struct ib_device *device) 717 { 718 struct kobject *p, *t; 719 struct ib_port *port; 720 721 list_for_each_entry_safe(p, t, &device->port_list, entry) { 722 list_del(&p->entry); 723 port = container_of(p, struct ib_port, kobj); 724 sysfs_remove_group(p, &pma_group); 725 sysfs_remove_group(p, &port->pkey_group); 726 sysfs_remove_group(p, &port->gid_group); 727 kobject_unregister(p); 728 } 729 730 kobject_unregister(&device->ports_parent); 731 class_device_unregister(&device->class_dev); 732 } 733 734 int ib_sysfs_setup(void) 735 { 736 return class_register(&ib_class); 737 } 738 739 void ib_sysfs_cleanup(void) 740 { 741 class_unregister(&ib_class); 742 } 743