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 inline int ibdev_is_alive(const struct ib_device *dev) 69 { 70 return dev->reg_state == IB_DEV_REGISTERED; 71 } 72 73 static ssize_t port_attr_show(struct kobject *kobj, 74 struct attribute *attr, char *buf) 75 { 76 struct port_attribute *port_attr = 77 container_of(attr, struct port_attribute, attr); 78 struct ib_port *p = container_of(kobj, struct ib_port, kobj); 79 80 if (!port_attr->show) 81 return -EIO; 82 if (!ibdev_is_alive(p->ibdev)) 83 return -ENODEV; 84 85 return port_attr->show(p, port_attr, buf); 86 } 87 88 static struct sysfs_ops port_sysfs_ops = { 89 .show = port_attr_show 90 }; 91 92 static ssize_t state_show(struct ib_port *p, struct port_attribute *unused, 93 char *buf) 94 { 95 struct ib_port_attr attr; 96 ssize_t ret; 97 98 static const char *state_name[] = { 99 [IB_PORT_NOP] = "NOP", 100 [IB_PORT_DOWN] = "DOWN", 101 [IB_PORT_INIT] = "INIT", 102 [IB_PORT_ARMED] = "ARMED", 103 [IB_PORT_ACTIVE] = "ACTIVE", 104 [IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER" 105 }; 106 107 ret = ib_query_port(p->ibdev, p->port_num, &attr); 108 if (ret) 109 return ret; 110 111 return sprintf(buf, "%d: %s\n", attr.state, 112 attr.state >= 0 && attr.state <= ARRAY_SIZE(state_name) ? 113 state_name[attr.state] : "UNKNOWN"); 114 } 115 116 static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused, 117 char *buf) 118 { 119 struct ib_port_attr attr; 120 ssize_t ret; 121 122 ret = ib_query_port(p->ibdev, p->port_num, &attr); 123 if (ret) 124 return ret; 125 126 return sprintf(buf, "0x%x\n", attr.lid); 127 } 128 129 static ssize_t lid_mask_count_show(struct ib_port *p, 130 struct port_attribute *unused, 131 char *buf) 132 { 133 struct ib_port_attr attr; 134 ssize_t ret; 135 136 ret = ib_query_port(p->ibdev, p->port_num, &attr); 137 if (ret) 138 return ret; 139 140 return sprintf(buf, "%d\n", attr.lmc); 141 } 142 143 static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused, 144 char *buf) 145 { 146 struct ib_port_attr attr; 147 ssize_t ret; 148 149 ret = ib_query_port(p->ibdev, p->port_num, &attr); 150 if (ret) 151 return ret; 152 153 return sprintf(buf, "0x%x\n", attr.sm_lid); 154 } 155 156 static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused, 157 char *buf) 158 { 159 struct ib_port_attr attr; 160 ssize_t ret; 161 162 ret = ib_query_port(p->ibdev, p->port_num, &attr); 163 if (ret) 164 return ret; 165 166 return sprintf(buf, "%d\n", attr.sm_sl); 167 } 168 169 static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused, 170 char *buf) 171 { 172 struct ib_port_attr attr; 173 ssize_t ret; 174 175 ret = ib_query_port(p->ibdev, p->port_num, &attr); 176 if (ret) 177 return ret; 178 179 return sprintf(buf, "0x%08x\n", attr.port_cap_flags); 180 } 181 182 static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, 183 char *buf) 184 { 185 struct ib_port_attr attr; 186 char *speed = ""; 187 int rate; 188 ssize_t ret; 189 190 ret = ib_query_port(p->ibdev, p->port_num, &attr); 191 if (ret) 192 return ret; 193 194 switch (attr.active_speed) { 195 case 2: speed = " DDR"; break; 196 case 4: speed = " QDR"; break; 197 } 198 199 rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed; 200 if (rate < 0) 201 return -EINVAL; 202 203 return sprintf(buf, "%d%s Gb/sec (%dX%s)\n", 204 rate / 10, rate % 10 ? ".5" : "", 205 ib_width_enum_to_int(attr.active_width), speed); 206 } 207 208 static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused, 209 char *buf) 210 { 211 struct ib_port_attr attr; 212 213 ssize_t ret; 214 215 ret = ib_query_port(p->ibdev, p->port_num, &attr); 216 if (ret) 217 return ret; 218 219 switch (attr.phys_state) { 220 case 1: return sprintf(buf, "1: Sleep\n"); 221 case 2: return sprintf(buf, "2: Polling\n"); 222 case 3: return sprintf(buf, "3: Disabled\n"); 223 case 4: return sprintf(buf, "4: PortConfigurationTraining\n"); 224 case 5: return sprintf(buf, "5: LinkUp\n"); 225 case 6: return sprintf(buf, "6: LinkErrorRecovery\n"); 226 case 7: return sprintf(buf, "7: Phy Test\n"); 227 default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state); 228 } 229 } 230 231 static PORT_ATTR_RO(state); 232 static PORT_ATTR_RO(lid); 233 static PORT_ATTR_RO(lid_mask_count); 234 static PORT_ATTR_RO(sm_lid); 235 static PORT_ATTR_RO(sm_sl); 236 static PORT_ATTR_RO(cap_mask); 237 static PORT_ATTR_RO(rate); 238 static PORT_ATTR_RO(phys_state); 239 240 static struct attribute *port_default_attrs[] = { 241 &port_attr_state.attr, 242 &port_attr_lid.attr, 243 &port_attr_lid_mask_count.attr, 244 &port_attr_sm_lid.attr, 245 &port_attr_sm_sl.attr, 246 &port_attr_cap_mask.attr, 247 &port_attr_rate.attr, 248 &port_attr_phys_state.attr, 249 NULL 250 }; 251 252 static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr, 253 char *buf) 254 { 255 struct port_table_attribute *tab_attr = 256 container_of(attr, struct port_table_attribute, attr); 257 union ib_gid gid; 258 ssize_t ret; 259 260 ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid); 261 if (ret) 262 return ret; 263 264 return sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n", 265 be16_to_cpu(((__be16 *) gid.raw)[0]), 266 be16_to_cpu(((__be16 *) gid.raw)[1]), 267 be16_to_cpu(((__be16 *) gid.raw)[2]), 268 be16_to_cpu(((__be16 *) gid.raw)[3]), 269 be16_to_cpu(((__be16 *) gid.raw)[4]), 270 be16_to_cpu(((__be16 *) gid.raw)[5]), 271 be16_to_cpu(((__be16 *) gid.raw)[6]), 272 be16_to_cpu(((__be16 *) gid.raw)[7])); 273 } 274 275 static ssize_t show_port_pkey(struct ib_port *p, struct port_attribute *attr, 276 char *buf) 277 { 278 struct port_table_attribute *tab_attr = 279 container_of(attr, struct port_table_attribute, attr); 280 u16 pkey; 281 ssize_t ret; 282 283 ret = ib_query_pkey(p->ibdev, p->port_num, tab_attr->index, &pkey); 284 if (ret) 285 return ret; 286 287 return sprintf(buf, "0x%04x\n", pkey); 288 } 289 290 #define PORT_PMA_ATTR(_name, _counter, _width, _offset) \ 291 struct port_table_attribute port_pma_attr_##_name = { \ 292 .attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \ 293 .index = (_offset) | ((_width) << 16) | ((_counter) << 24) \ 294 } 295 296 static ssize_t show_pma_counter(struct ib_port *p, struct port_attribute *attr, 297 char *buf) 298 { 299 struct port_table_attribute *tab_attr = 300 container_of(attr, struct port_table_attribute, attr); 301 int offset = tab_attr->index & 0xffff; 302 int width = (tab_attr->index >> 16) & 0xff; 303 struct ib_mad *in_mad = NULL; 304 struct ib_mad *out_mad = NULL; 305 ssize_t ret; 306 307 if (!p->ibdev->process_mad) 308 return sprintf(buf, "N/A (no PMA)\n"); 309 310 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 311 out_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); 312 if (!in_mad || !out_mad) { 313 ret = -ENOMEM; 314 goto out; 315 } 316 317 in_mad->mad_hdr.base_version = 1; 318 in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT; 319 in_mad->mad_hdr.class_version = 1; 320 in_mad->mad_hdr.method = IB_MGMT_METHOD_GET; 321 in_mad->mad_hdr.attr_id = cpu_to_be16(0x12); /* PortCounters */ 322 323 in_mad->data[41] = p->port_num; /* PortSelect field */ 324 325 if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY, 326 p->port_num, NULL, NULL, in_mad, out_mad) & 327 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) != 328 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) { 329 ret = -EINVAL; 330 goto out; 331 } 332 333 switch (width) { 334 case 4: 335 ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >> 336 (offset % 4)) & 0xf); 337 break; 338 case 8: 339 ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]); 340 break; 341 case 16: 342 ret = sprintf(buf, "%u\n", 343 be16_to_cpup((__be16 *)(out_mad->data + 40 + offset / 8))); 344 break; 345 case 32: 346 ret = sprintf(buf, "%u\n", 347 be32_to_cpup((__be32 *)(out_mad->data + 40 + offset / 8))); 348 break; 349 default: 350 ret = 0; 351 } 352 353 out: 354 kfree(in_mad); 355 kfree(out_mad); 356 357 return ret; 358 } 359 360 static PORT_PMA_ATTR(symbol_error , 0, 16, 32); 361 static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48); 362 static PORT_PMA_ATTR(link_downed , 2, 8, 56); 363 static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64); 364 static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80); 365 static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96); 366 static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112); 367 static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128); 368 static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136); 369 static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152); 370 static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156); 371 static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176); 372 static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192); 373 static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224); 374 static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256); 375 static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288); 376 377 static struct attribute *pma_attrs[] = { 378 &port_pma_attr_symbol_error.attr.attr, 379 &port_pma_attr_link_error_recovery.attr.attr, 380 &port_pma_attr_link_downed.attr.attr, 381 &port_pma_attr_port_rcv_errors.attr.attr, 382 &port_pma_attr_port_rcv_remote_physical_errors.attr.attr, 383 &port_pma_attr_port_rcv_switch_relay_errors.attr.attr, 384 &port_pma_attr_port_xmit_discards.attr.attr, 385 &port_pma_attr_port_xmit_constraint_errors.attr.attr, 386 &port_pma_attr_port_rcv_constraint_errors.attr.attr, 387 &port_pma_attr_local_link_integrity_errors.attr.attr, 388 &port_pma_attr_excessive_buffer_overrun_errors.attr.attr, 389 &port_pma_attr_VL15_dropped.attr.attr, 390 &port_pma_attr_port_xmit_data.attr.attr, 391 &port_pma_attr_port_rcv_data.attr.attr, 392 &port_pma_attr_port_xmit_packets.attr.attr, 393 &port_pma_attr_port_rcv_packets.attr.attr, 394 NULL 395 }; 396 397 static struct attribute_group pma_group = { 398 .name = "counters", 399 .attrs = pma_attrs 400 }; 401 402 static void ib_port_release(struct kobject *kobj) 403 { 404 struct ib_port *p = container_of(kobj, struct ib_port, kobj); 405 struct attribute *a; 406 int i; 407 408 for (i = 0; (a = p->gid_group.attrs[i]); ++i) 409 kfree(a); 410 411 kfree(p->gid_group.attrs); 412 413 for (i = 0; (a = p->pkey_group.attrs[i]); ++i) 414 kfree(a); 415 416 kfree(p->pkey_group.attrs); 417 418 kfree(p); 419 } 420 421 static struct kobj_type port_type = { 422 .release = ib_port_release, 423 .sysfs_ops = &port_sysfs_ops, 424 .default_attrs = port_default_attrs 425 }; 426 427 static void ib_device_release(struct class_device *cdev) 428 { 429 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); 430 431 kfree(dev); 432 } 433 434 static int ib_device_hotplug(struct class_device *cdev, char **envp, 435 int num_envp, char *buf, int size) 436 { 437 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); 438 int i = 0, len = 0; 439 440 if (add_hotplug_env_var(envp, num_envp, &i, buf, size, &len, 441 "NAME=%s", dev->name)) 442 return -ENOMEM; 443 444 /* 445 * It might be nice to pass the node GUID to hotplug, but 446 * right now the only way to get it is to query the device 447 * provider, and this can crash during device removal because 448 * we are will be running after driver removal has started. 449 * We could add a node_guid field to struct ib_device, or we 450 * could just let the hotplug script read the node GUID from 451 * sysfs when devices are added. 452 */ 453 454 envp[i] = NULL; 455 return 0; 456 } 457 458 static struct attribute ** 459 alloc_group_attrs(ssize_t (*show)(struct ib_port *, 460 struct port_attribute *, char *buf), 461 int len) 462 { 463 struct attribute **tab_attr; 464 struct port_table_attribute *element; 465 int i; 466 467 tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL); 468 if (!tab_attr) 469 return NULL; 470 471 for (i = 0; i < len; i++) { 472 element = kzalloc(sizeof(struct port_table_attribute), 473 GFP_KERNEL); 474 if (!element) 475 goto err; 476 477 if (snprintf(element->name, sizeof(element->name), 478 "%d", i) >= sizeof(element->name)) 479 goto err; 480 481 element->attr.attr.name = element->name; 482 element->attr.attr.mode = S_IRUGO; 483 element->attr.attr.owner = THIS_MODULE; 484 element->attr.show = show; 485 element->index = i; 486 487 tab_attr[i] = &element->attr.attr; 488 } 489 490 return tab_attr; 491 492 err: 493 while (--i >= 0) 494 kfree(tab_attr[i]); 495 kfree(tab_attr); 496 return NULL; 497 } 498 499 static int add_port(struct ib_device *device, int port_num) 500 { 501 struct ib_port *p; 502 struct ib_port_attr attr; 503 int i; 504 int ret; 505 506 ret = ib_query_port(device, port_num, &attr); 507 if (ret) 508 return ret; 509 510 p = kzalloc(sizeof *p, GFP_KERNEL); 511 if (!p) 512 return -ENOMEM; 513 514 p->ibdev = device; 515 p->port_num = port_num; 516 p->kobj.ktype = &port_type; 517 518 p->kobj.parent = kobject_get(&device->ports_parent); 519 if (!p->kobj.parent) { 520 ret = -EBUSY; 521 goto err; 522 } 523 524 ret = kobject_set_name(&p->kobj, "%d", port_num); 525 if (ret) 526 goto err_put; 527 528 ret = kobject_register(&p->kobj); 529 if (ret) 530 goto err_put; 531 532 ret = sysfs_create_group(&p->kobj, &pma_group); 533 if (ret) 534 goto err_put; 535 536 p->gid_group.name = "gids"; 537 p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len); 538 if (!p->gid_group.attrs) 539 goto err_remove_pma; 540 541 ret = sysfs_create_group(&p->kobj, &p->gid_group); 542 if (ret) 543 goto err_free_gid; 544 545 p->pkey_group.name = "pkeys"; 546 p->pkey_group.attrs = alloc_group_attrs(show_port_pkey, 547 attr.pkey_tbl_len); 548 if (!p->pkey_group.attrs) 549 goto err_remove_gid; 550 551 ret = sysfs_create_group(&p->kobj, &p->pkey_group); 552 if (ret) 553 goto err_free_pkey; 554 555 list_add_tail(&p->kobj.entry, &device->port_list); 556 557 return 0; 558 559 err_free_pkey: 560 for (i = 0; i < attr.pkey_tbl_len; ++i) 561 kfree(p->pkey_group.attrs[i]); 562 563 kfree(p->pkey_group.attrs); 564 565 err_remove_gid: 566 sysfs_remove_group(&p->kobj, &p->gid_group); 567 568 err_free_gid: 569 for (i = 0; i < attr.gid_tbl_len; ++i) 570 kfree(p->gid_group.attrs[i]); 571 572 kfree(p->gid_group.attrs); 573 574 err_remove_pma: 575 sysfs_remove_group(&p->kobj, &pma_group); 576 577 err_put: 578 kobject_put(&device->ports_parent); 579 580 err: 581 kfree(p); 582 return ret; 583 } 584 585 static ssize_t show_node_type(struct class_device *cdev, char *buf) 586 { 587 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); 588 589 if (!ibdev_is_alive(dev)) 590 return -ENODEV; 591 592 switch (dev->node_type) { 593 case IB_NODE_CA: return sprintf(buf, "%d: CA\n", dev->node_type); 594 case IB_NODE_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); 595 case IB_NODE_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); 596 default: return sprintf(buf, "%d: <unknown>\n", dev->node_type); 597 } 598 } 599 600 static ssize_t show_sys_image_guid(struct class_device *cdev, char *buf) 601 { 602 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); 603 struct ib_device_attr attr; 604 ssize_t ret; 605 606 if (!ibdev_is_alive(dev)) 607 return -ENODEV; 608 609 ret = ib_query_device(dev, &attr); 610 if (ret) 611 return ret; 612 613 return sprintf(buf, "%04x:%04x:%04x:%04x\n", 614 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[0]), 615 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[1]), 616 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[2]), 617 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[3])); 618 } 619 620 static ssize_t show_node_guid(struct class_device *cdev, char *buf) 621 { 622 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); 623 struct ib_device_attr attr; 624 ssize_t ret; 625 626 if (!ibdev_is_alive(dev)) 627 return -ENODEV; 628 629 ret = ib_query_device(dev, &attr); 630 if (ret) 631 return ret; 632 633 return sprintf(buf, "%04x:%04x:%04x:%04x\n", 634 be16_to_cpu(((__be16 *) &attr.node_guid)[0]), 635 be16_to_cpu(((__be16 *) &attr.node_guid)[1]), 636 be16_to_cpu(((__be16 *) &attr.node_guid)[2]), 637 be16_to_cpu(((__be16 *) &attr.node_guid)[3])); 638 } 639 640 static CLASS_DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL); 641 static CLASS_DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL); 642 static CLASS_DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL); 643 644 static struct class_device_attribute *ib_class_attributes[] = { 645 &class_device_attr_node_type, 646 &class_device_attr_sys_image_guid, 647 &class_device_attr_node_guid 648 }; 649 650 static struct class ib_class = { 651 .name = "infiniband", 652 .release = ib_device_release, 653 .hotplug = ib_device_hotplug, 654 }; 655 656 int ib_device_register_sysfs(struct ib_device *device) 657 { 658 struct class_device *class_dev = &device->class_dev; 659 int ret; 660 int i; 661 662 class_dev->class = &ib_class; 663 class_dev->class_data = device; 664 strlcpy(class_dev->class_id, device->name, BUS_ID_SIZE); 665 666 INIT_LIST_HEAD(&device->port_list); 667 668 ret = class_device_register(class_dev); 669 if (ret) 670 goto err; 671 672 for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) { 673 ret = class_device_create_file(class_dev, ib_class_attributes[i]); 674 if (ret) 675 goto err_unregister; 676 } 677 678 device->ports_parent.parent = kobject_get(&class_dev->kobj); 679 if (!device->ports_parent.parent) { 680 ret = -EBUSY; 681 goto err_unregister; 682 } 683 ret = kobject_set_name(&device->ports_parent, "ports"); 684 if (ret) 685 goto err_put; 686 ret = kobject_register(&device->ports_parent); 687 if (ret) 688 goto err_put; 689 690 if (device->node_type == IB_NODE_SWITCH) { 691 ret = add_port(device, 0); 692 if (ret) 693 goto err_put; 694 } else { 695 int i; 696 697 for (i = 1; i <= device->phys_port_cnt; ++i) { 698 ret = add_port(device, i); 699 if (ret) 700 goto err_put; 701 } 702 } 703 704 return 0; 705 706 err_put: 707 { 708 struct kobject *p, *t; 709 struct ib_port *port; 710 711 list_for_each_entry_safe(p, t, &device->port_list, entry) { 712 list_del(&p->entry); 713 port = container_of(p, struct ib_port, kobj); 714 sysfs_remove_group(p, &pma_group); 715 sysfs_remove_group(p, &port->pkey_group); 716 sysfs_remove_group(p, &port->gid_group); 717 kobject_unregister(p); 718 } 719 } 720 721 kobject_put(&class_dev->kobj); 722 723 err_unregister: 724 class_device_unregister(class_dev); 725 726 err: 727 return ret; 728 } 729 730 void ib_device_unregister_sysfs(struct ib_device *device) 731 { 732 struct kobject *p, *t; 733 struct ib_port *port; 734 735 list_for_each_entry_safe(p, t, &device->port_list, entry) { 736 list_del(&p->entry); 737 port = container_of(p, struct ib_port, kobj); 738 sysfs_remove_group(p, &pma_group); 739 sysfs_remove_group(p, &port->pkey_group); 740 sysfs_remove_group(p, &port->gid_group); 741 kobject_unregister(p); 742 } 743 744 kobject_unregister(&device->ports_parent); 745 class_device_unregister(&device->class_dev); 746 } 747 748 int ib_sysfs_setup(void) 749 { 750 return class_register(&ib_class); 751 } 752 753 void ib_sysfs_cleanup(void) 754 { 755 class_unregister(&ib_class); 756 } 757