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,v 1.1.1.1 2007/10/11 23:31:50 Exp $ 35 */ 36 37#include "core_priv.h" 38 39#include <linux/slab.h> 40#include <linux/string.h> 41 42#include <rdma/ib_mad.h> 43 44struct ib_port { 45 struct kobject kobj; 46 struct ib_device *ibdev; 47 struct attribute_group gid_group; 48 struct attribute_group pkey_group; 49 u8 port_num; 50}; 51 52struct port_attribute { 53 struct attribute attr; 54 ssize_t (*show)(struct ib_port *, struct port_attribute *, char *buf); 55 ssize_t (*store)(struct ib_port *, struct port_attribute *, 56 const char *buf, size_t count); 57}; 58 59#define PORT_ATTR(_name, _mode, _show, _store) \ 60struct port_attribute port_attr_##_name = __ATTR(_name, _mode, _show, _store) 61 62#define PORT_ATTR_RO(_name) \ 63struct port_attribute port_attr_##_name = __ATTR_RO(_name) 64 65struct port_table_attribute { 66 struct port_attribute attr; 67 char name[8]; 68 int index; 69}; 70 71static inline int ibdev_is_alive(const struct ib_device *dev) 72{ 73 return dev->reg_state == IB_DEV_REGISTERED; 74} 75 76static ssize_t port_attr_show(struct kobject *kobj, 77 struct attribute *attr, char *buf) 78{ 79 struct port_attribute *port_attr = 80 container_of(attr, struct port_attribute, attr); 81 struct ib_port *p = container_of(kobj, struct ib_port, kobj); 82 83 if (!port_attr->show) 84 return -EIO; 85 if (!ibdev_is_alive(p->ibdev)) 86 return -ENODEV; 87 88 return port_attr->show(p, port_attr, buf); 89} 90 91static struct sysfs_ops port_sysfs_ops = { 92 .show = port_attr_show 93}; 94 95static ssize_t state_show(struct ib_port *p, struct port_attribute *unused, 96 char *buf) 97{ 98 struct ib_port_attr attr; 99 ssize_t ret; 100 101 static const char *state_name[] = { 102 [IB_PORT_NOP] = "NOP", 103 [IB_PORT_DOWN] = "DOWN", 104 [IB_PORT_INIT] = "INIT", 105 [IB_PORT_ARMED] = "ARMED", 106 [IB_PORT_ACTIVE] = "ACTIVE", 107 [IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER" 108 }; 109 110 ret = ib_query_port(p->ibdev, p->port_num, &attr); 111 if (ret) 112 return ret; 113 114 return sprintf(buf, "%d: %s\n", attr.state, 115 attr.state >= 0 && attr.state < ARRAY_SIZE(state_name) ? 116 state_name[attr.state] : "UNKNOWN"); 117} 118 119static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused, 120 char *buf) 121{ 122 struct ib_port_attr attr; 123 ssize_t ret; 124 125 ret = ib_query_port(p->ibdev, p->port_num, &attr); 126 if (ret) 127 return ret; 128 129 return sprintf(buf, "0x%x\n", attr.lid); 130} 131 132static ssize_t lid_mask_count_show(struct ib_port *p, 133 struct port_attribute *unused, 134 char *buf) 135{ 136 struct ib_port_attr attr; 137 ssize_t ret; 138 139 ret = ib_query_port(p->ibdev, p->port_num, &attr); 140 if (ret) 141 return ret; 142 143 return sprintf(buf, "%d\n", attr.lmc); 144} 145 146static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused, 147 char *buf) 148{ 149 struct ib_port_attr attr; 150 ssize_t ret; 151 152 ret = ib_query_port(p->ibdev, p->port_num, &attr); 153 if (ret) 154 return ret; 155 156 return sprintf(buf, "0x%x\n", attr.sm_lid); 157} 158 159static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused, 160 char *buf) 161{ 162 struct ib_port_attr attr; 163 ssize_t ret; 164 165 ret = ib_query_port(p->ibdev, p->port_num, &attr); 166 if (ret) 167 return ret; 168 169 return sprintf(buf, "%d\n", attr.sm_sl); 170} 171 172static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused, 173 char *buf) 174{ 175 struct ib_port_attr attr; 176 ssize_t ret; 177 178 ret = ib_query_port(p->ibdev, p->port_num, &attr); 179 if (ret) 180 return ret; 181 182 return sprintf(buf, "0x%08x\n", attr.port_cap_flags); 183} 184 185static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, 186 char *buf) 187{ 188 struct ib_port_attr attr; 189 char *speed = ""; 190 int rate; 191 ssize_t ret; 192 193 ret = ib_query_port(p->ibdev, p->port_num, &attr); 194 if (ret) 195 return ret; 196 197 switch (attr.active_speed) { 198 case 2: speed = " DDR"; break; 199 case 4: speed = " QDR"; break; 200 } 201 202 rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed; 203 if (rate < 0) 204 return -EINVAL; 205 206 return sprintf(buf, "%d%s Gb/sec (%dX%s)\n", 207 rate / 10, rate % 10 ? ".5" : "", 208 ib_width_enum_to_int(attr.active_width), speed); 209} 210 211static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused, 212 char *buf) 213{ 214 struct ib_port_attr attr; 215 216 ssize_t ret; 217 218 ret = ib_query_port(p->ibdev, p->port_num, &attr); 219 if (ret) 220 return ret; 221 222 switch (attr.phys_state) { 223 case 1: return sprintf(buf, "1: Sleep\n"); 224 case 2: return sprintf(buf, "2: Polling\n"); 225 case 3: return sprintf(buf, "3: Disabled\n"); 226 case 4: return sprintf(buf, "4: PortConfigurationTraining\n"); 227 case 5: return sprintf(buf, "5: LinkUp\n"); 228 case 6: return sprintf(buf, "6: LinkErrorRecovery\n"); 229 case 7: return sprintf(buf, "7: Phy Test\n"); 230 default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state); 231 } 232} 233 234static PORT_ATTR_RO(state); 235static PORT_ATTR_RO(lid); 236static PORT_ATTR_RO(lid_mask_count); 237static PORT_ATTR_RO(sm_lid); 238static PORT_ATTR_RO(sm_sl); 239static PORT_ATTR_RO(cap_mask); 240static PORT_ATTR_RO(rate); 241static PORT_ATTR_RO(phys_state); 242 243static struct attribute *port_default_attrs[] = { 244 &port_attr_state.attr, 245 &port_attr_lid.attr, 246 &port_attr_lid_mask_count.attr, 247 &port_attr_sm_lid.attr, 248 &port_attr_sm_sl.attr, 249 &port_attr_cap_mask.attr, 250 &port_attr_rate.attr, 251 &port_attr_phys_state.attr, 252 NULL 253}; 254 255static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr, 256 char *buf) 257{ 258 struct port_table_attribute *tab_attr = 259 container_of(attr, struct port_table_attribute, attr); 260 union ib_gid gid; 261 ssize_t ret; 262 263 ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid); 264 if (ret) 265 return ret; 266 267 return sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n", 268 be16_to_cpu(((__be16 *) gid.raw)[0]), 269 be16_to_cpu(((__be16 *) gid.raw)[1]), 270 be16_to_cpu(((__be16 *) gid.raw)[2]), 271 be16_to_cpu(((__be16 *) gid.raw)[3]), 272 be16_to_cpu(((__be16 *) gid.raw)[4]), 273 be16_to_cpu(((__be16 *) gid.raw)[5]), 274 be16_to_cpu(((__be16 *) gid.raw)[6]), 275 be16_to_cpu(((__be16 *) gid.raw)[7])); 276} 277 278static ssize_t show_port_pkey(struct ib_port *p, struct port_attribute *attr, 279 char *buf) 280{ 281 struct port_table_attribute *tab_attr = 282 container_of(attr, struct port_table_attribute, attr); 283 u16 pkey; 284 ssize_t ret; 285 286 ret = ib_query_pkey(p->ibdev, p->port_num, tab_attr->index, &pkey); 287 if (ret) 288 return ret; 289 290 return sprintf(buf, "0x%04x\n", pkey); 291} 292 293#define PORT_PMA_ATTR(_name, _counter, _width, _offset) \ 294struct port_table_attribute port_pma_attr_##_name = { \ 295 .attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \ 296 .index = (_offset) | ((_width) << 16) | ((_counter) << 24) \ 297} 298 299static ssize_t show_pma_counter(struct ib_port *p, struct port_attribute *attr, 300 char *buf) 301{ 302 struct port_table_attribute *tab_attr = 303 container_of(attr, struct port_table_attribute, attr); 304 int offset = tab_attr->index & 0xffff; 305 int width = (tab_attr->index >> 16) & 0xff; 306 struct ib_mad *in_mad = NULL; 307 struct ib_mad *out_mad = NULL; 308 ssize_t ret; 309 310 if (!p->ibdev->process_mad) 311 return sprintf(buf, "N/A (no PMA)\n"); 312 313 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 314 out_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); 315 if (!in_mad || !out_mad) { 316 ret = -ENOMEM; 317 goto out; 318 } 319 320 in_mad->mad_hdr.base_version = 1; 321 in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT; 322 in_mad->mad_hdr.class_version = 1; 323 in_mad->mad_hdr.method = IB_MGMT_METHOD_GET; 324 in_mad->mad_hdr.attr_id = cpu_to_be16(0x12); /* PortCounters */ 325 326 in_mad->data[41] = p->port_num; /* PortSelect field */ 327 328 if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY, 329 p->port_num, NULL, NULL, in_mad, out_mad) & 330 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) != 331 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) { 332 ret = -EINVAL; 333 goto out; 334 } 335 336 switch (width) { 337 case 4: 338 ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >> 339 (4 - (offset % 8))) & 0xf); 340 break; 341 case 8: 342 ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]); 343 break; 344 case 16: 345 ret = sprintf(buf, "%u\n", 346 be16_to_cpup((__be16 *)(out_mad->data + 40 + offset / 8))); 347 break; 348 case 32: 349 ret = sprintf(buf, "%u\n", 350 be32_to_cpup((__be32 *)(out_mad->data + 40 + offset / 8))); 351 break; 352 default: 353 ret = 0; 354 } 355 356out: 357 kfree(in_mad); 358 kfree(out_mad); 359 360 return ret; 361} 362 363static PORT_PMA_ATTR(symbol_error , 0, 16, 32); 364static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48); 365static PORT_PMA_ATTR(link_downed , 2, 8, 56); 366static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64); 367static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80); 368static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96); 369static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112); 370static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128); 371static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136); 372static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152); 373static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156); 374static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176); 375static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192); 376static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224); 377static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256); 378static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288); 379 380static struct attribute *pma_attrs[] = { 381 &port_pma_attr_symbol_error.attr.attr, 382 &port_pma_attr_link_error_recovery.attr.attr, 383 &port_pma_attr_link_downed.attr.attr, 384 &port_pma_attr_port_rcv_errors.attr.attr, 385 &port_pma_attr_port_rcv_remote_physical_errors.attr.attr, 386 &port_pma_attr_port_rcv_switch_relay_errors.attr.attr, 387 &port_pma_attr_port_xmit_discards.attr.attr, 388 &port_pma_attr_port_xmit_constraint_errors.attr.attr, 389 &port_pma_attr_port_rcv_constraint_errors.attr.attr, 390 &port_pma_attr_local_link_integrity_errors.attr.attr, 391 &port_pma_attr_excessive_buffer_overrun_errors.attr.attr, 392 &port_pma_attr_VL15_dropped.attr.attr, 393 &port_pma_attr_port_xmit_data.attr.attr, 394 &port_pma_attr_port_rcv_data.attr.attr, 395 &port_pma_attr_port_xmit_packets.attr.attr, 396 &port_pma_attr_port_rcv_packets.attr.attr, 397 NULL 398}; 399 400static struct attribute_group pma_group = { 401 .name = "counters", 402 .attrs = pma_attrs 403}; 404 405static void ib_port_release(struct kobject *kobj) 406{ 407 struct ib_port *p = container_of(kobj, struct ib_port, kobj); 408 struct attribute *a; 409 int i; 410 411 for (i = 0; (a = p->gid_group.attrs[i]); ++i) 412 kfree(a); 413 414 kfree(p->gid_group.attrs); 415 416 for (i = 0; (a = p->pkey_group.attrs[i]); ++i) 417 kfree(a); 418 419 kfree(p->pkey_group.attrs); 420 421 kfree(p); 422} 423 424static struct kobj_type port_type = { 425 .release = ib_port_release, 426 .sysfs_ops = &port_sysfs_ops, 427 .default_attrs = port_default_attrs 428}; 429 430static void ib_device_release(struct class_device *cdev) 431{ 432 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); 433 434 kfree(dev); 435} 436 437static int ib_device_uevent(struct class_device *cdev, char **envp, 438 int num_envp, char *buf, int size) 439{ 440 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); 441 int i = 0, len = 0; 442 443 if (add_uevent_var(envp, num_envp, &i, buf, size, &len, 444 "NAME=%s", dev->name)) 445 return -ENOMEM; 446 447 /* 448 * It would be nice to pass the node GUID with the event... 449 */ 450 451 envp[i] = NULL; 452 return 0; 453} 454 455static struct attribute ** 456alloc_group_attrs(ssize_t (*show)(struct ib_port *, 457 struct port_attribute *, char *buf), 458 int len) 459{ 460 struct attribute **tab_attr; 461 struct port_table_attribute *element; 462 int i; 463 464 tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL); 465 if (!tab_attr) 466 return NULL; 467 468 for (i = 0; i < len; i++) { 469 element = kzalloc(sizeof(struct port_table_attribute), 470 GFP_KERNEL); 471 if (!element) 472 goto err; 473 474 if (snprintf(element->name, sizeof(element->name), 475 "%d", i) >= sizeof(element->name)) { 476 kfree(element); 477 goto err; 478 } 479 480 element->attr.attr.name = element->name; 481 element->attr.attr.mode = S_IRUGO; 482 element->attr.attr.owner = THIS_MODULE; 483 element->attr.show = show; 484 element->index = i; 485 486 tab_attr[i] = &element->attr.attr; 487 } 488 489 return tab_attr; 490 491err: 492 while (--i >= 0) 493 kfree(tab_attr[i]); 494 kfree(tab_attr); 495 return NULL; 496} 497 498static int add_port(struct ib_device *device, int port_num) 499{ 500 struct ib_port *p; 501 struct ib_port_attr attr; 502 int i; 503 int ret; 504 505 ret = ib_query_port(device, port_num, &attr); 506 if (ret) 507 return ret; 508 509 p = kzalloc(sizeof *p, GFP_KERNEL); 510 if (!p) 511 return -ENOMEM; 512 513 p->ibdev = device; 514 p->port_num = port_num; 515 p->kobj.ktype = &port_type; 516 517 p->kobj.parent = kobject_get(&device->ports_parent); 518 if (!p->kobj.parent) { 519 ret = -EBUSY; 520 goto err; 521 } 522 523 ret = kobject_set_name(&p->kobj, "%d", port_num); 524 if (ret) 525 goto err_put; 526 527 ret = kobject_register(&p->kobj); 528 if (ret) 529 goto err_put; 530 531 ret = sysfs_create_group(&p->kobj, &pma_group); 532 if (ret) 533 goto err_put; 534 535 p->gid_group.name = "gids"; 536 p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len); 537 if (!p->gid_group.attrs) 538 goto err_remove_pma; 539 540 ret = sysfs_create_group(&p->kobj, &p->gid_group); 541 if (ret) 542 goto err_free_gid; 543 544 p->pkey_group.name = "pkeys"; 545 p->pkey_group.attrs = alloc_group_attrs(show_port_pkey, 546 attr.pkey_tbl_len); 547 if (!p->pkey_group.attrs) 548 goto err_remove_gid; 549 550 ret = sysfs_create_group(&p->kobj, &p->pkey_group); 551 if (ret) 552 goto err_free_pkey; 553 554 list_add_tail(&p->kobj.entry, &device->port_list); 555 556 return 0; 557 558err_free_pkey: 559 for (i = 0; i < attr.pkey_tbl_len; ++i) 560 kfree(p->pkey_group.attrs[i]); 561 562 kfree(p->pkey_group.attrs); 563 564err_remove_gid: 565 sysfs_remove_group(&p->kobj, &p->gid_group); 566 567err_free_gid: 568 for (i = 0; i < attr.gid_tbl_len; ++i) 569 kfree(p->gid_group.attrs[i]); 570 571 kfree(p->gid_group.attrs); 572 573err_remove_pma: 574 sysfs_remove_group(&p->kobj, &pma_group); 575 576err_put: 577 kobject_put(&device->ports_parent); 578 579err: 580 kfree(p); 581 return ret; 582} 583 584static ssize_t show_node_type(struct class_device *cdev, char *buf) 585{ 586 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); 587 588 if (!ibdev_is_alive(dev)) 589 return -ENODEV; 590 591 switch (dev->node_type) { 592 case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type); 593 case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type); 594 case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); 595 case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); 596 default: return sprintf(buf, "%d: <unknown>\n", dev->node_type); 597 } 598} 599 600static 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 620static 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); 623 624 if (!ibdev_is_alive(dev)) 625 return -ENODEV; 626 627 return sprintf(buf, "%04x:%04x:%04x:%04x\n", 628 be16_to_cpu(((__be16 *) &dev->node_guid)[0]), 629 be16_to_cpu(((__be16 *) &dev->node_guid)[1]), 630 be16_to_cpu(((__be16 *) &dev->node_guid)[2]), 631 be16_to_cpu(((__be16 *) &dev->node_guid)[3])); 632} 633 634static ssize_t show_node_desc(struct class_device *cdev, char *buf) 635{ 636 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); 637 638 return sprintf(buf, "%.64s\n", dev->node_desc); 639} 640 641static ssize_t set_node_desc(struct class_device *cdev, const char *buf, 642 size_t count) 643{ 644 struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); 645 struct ib_device_modify desc = {}; 646 int ret; 647 648 if (!dev->modify_device) 649 return -EIO; 650 651 memcpy(desc.node_desc, buf, min_t(int, count, 64)); 652 ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc); 653 if (ret) 654 return ret; 655 656 return count; 657} 658 659static CLASS_DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL); 660static CLASS_DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL); 661static CLASS_DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL); 662static CLASS_DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, 663 set_node_desc); 664 665static struct class_device_attribute *ib_class_attributes[] = { 666 &class_device_attr_node_type, 667 &class_device_attr_sys_image_guid, 668 &class_device_attr_node_guid, 669 &class_device_attr_node_desc 670}; 671 672static struct class ib_class = { 673 .name = "infiniband", 674 .release = ib_device_release, 675 .uevent = ib_device_uevent, 676}; 677 678int ib_device_register_sysfs(struct ib_device *device) 679{ 680 struct class_device *class_dev = &device->class_dev; 681 int ret; 682 int i; 683 684 class_dev->class = &ib_class; 685 class_dev->class_data = device; 686 class_dev->dev = device->dma_device; 687 strlcpy(class_dev->class_id, device->name, BUS_ID_SIZE); 688 689 INIT_LIST_HEAD(&device->port_list); 690 691 ret = class_device_register(class_dev); 692 if (ret) 693 goto err; 694 695 for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) { 696 ret = class_device_create_file(class_dev, ib_class_attributes[i]); 697 if (ret) 698 goto err_unregister; 699 } 700 701 device->ports_parent.parent = kobject_get(&class_dev->kobj); 702 if (!device->ports_parent.parent) { 703 ret = -EBUSY; 704 goto err_unregister; 705 } 706 ret = kobject_set_name(&device->ports_parent, "ports"); 707 if (ret) 708 goto err_put; 709 ret = kobject_register(&device->ports_parent); 710 if (ret) 711 goto err_put; 712 713 if (device->node_type == RDMA_NODE_IB_SWITCH) { 714 ret = add_port(device, 0); 715 if (ret) 716 goto err_put; 717 } else { 718 for (i = 1; i <= device->phys_port_cnt; ++i) { 719 ret = add_port(device, i); 720 if (ret) 721 goto err_put; 722 } 723 } 724 725 return 0; 726 727err_put: 728 { 729 struct kobject *p, *t; 730 struct ib_port *port; 731 732 list_for_each_entry_safe(p, t, &device->port_list, entry) { 733 list_del(&p->entry); 734 port = container_of(p, struct ib_port, kobj); 735 sysfs_remove_group(p, &pma_group); 736 sysfs_remove_group(p, &port->pkey_group); 737 sysfs_remove_group(p, &port->gid_group); 738 kobject_unregister(p); 739 } 740 } 741 742 kobject_put(&class_dev->kobj); 743 744err_unregister: 745 class_device_unregister(class_dev); 746 747err: 748 return ret; 749} 750 751void ib_device_unregister_sysfs(struct ib_device *device) 752{ 753 struct kobject *p, *t; 754 struct ib_port *port; 755 756 list_for_each_entry_safe(p, t, &device->port_list, entry) { 757 list_del(&p->entry); 758 port = container_of(p, struct ib_port, kobj); 759 sysfs_remove_group(p, &pma_group); 760 sysfs_remove_group(p, &port->pkey_group); 761 sysfs_remove_group(p, &port->gid_group); 762 kobject_unregister(p); 763 } 764 765 kobject_unregister(&device->ports_parent); 766 class_device_unregister(&device->class_dev); 767} 768 769int ib_sysfs_setup(void) 770{ 771 return class_register(&ib_class); 772} 773 774void ib_sysfs_cleanup(void) 775{ 776 class_unregister(&ib_class); 777} 778