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 35 #include "core_priv.h" 36 37 #include <linux/slab.h> 38 #include <linux/string.h> 39 40 #include <rdma/ib_mad.h> 41 42 struct ib_port { 43 struct kobject kobj; 44 struct ib_device *ibdev; 45 struct attribute_group gid_group; 46 struct attribute_group pkey_group; 47 u8 port_num; 48 }; 49 50 struct port_attribute { 51 struct attribute attr; 52 ssize_t (*show)(struct ib_port *, struct port_attribute *, char *buf); 53 ssize_t (*store)(struct ib_port *, struct port_attribute *, 54 const char *buf, size_t count); 55 }; 56 57 #define PORT_ATTR(_name, _mode, _show, _store) \ 58 struct port_attribute port_attr_##_name = __ATTR(_name, _mode, _show, _store) 59 60 #define PORT_ATTR_RO(_name) \ 61 struct port_attribute port_attr_##_name = __ATTR_RO(_name) 62 63 struct port_table_attribute { 64 struct port_attribute attr; 65 char name[8]; 66 int index; 67 }; 68 69 static ssize_t port_attr_show(struct kobject *kobj, 70 struct attribute *attr, char *buf) 71 { 72 struct port_attribute *port_attr = 73 container_of(attr, struct port_attribute, attr); 74 struct ib_port *p = container_of(kobj, struct ib_port, kobj); 75 76 if (!port_attr->show) 77 return -EIO; 78 79 return port_attr->show(p, port_attr, buf); 80 } 81 82 static const struct sysfs_ops port_sysfs_ops = { 83 .show = port_attr_show 84 }; 85 86 static ssize_t state_show(struct ib_port *p, struct port_attribute *unused, 87 char *buf) 88 { 89 struct ib_port_attr attr; 90 ssize_t ret; 91 92 static const char *state_name[] = { 93 [IB_PORT_NOP] = "NOP", 94 [IB_PORT_DOWN] = "DOWN", 95 [IB_PORT_INIT] = "INIT", 96 [IB_PORT_ARMED] = "ARMED", 97 [IB_PORT_ACTIVE] = "ACTIVE", 98 [IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER" 99 }; 100 101 ret = ib_query_port(p->ibdev, p->port_num, &attr); 102 if (ret) 103 return ret; 104 105 return sprintf(buf, "%d: %s\n", attr.state, 106 attr.state >= 0 && attr.state < ARRAY_SIZE(state_name) ? 107 state_name[attr.state] : "UNKNOWN"); 108 } 109 110 static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused, 111 char *buf) 112 { 113 struct ib_port_attr attr; 114 ssize_t ret; 115 116 ret = ib_query_port(p->ibdev, p->port_num, &attr); 117 if (ret) 118 return ret; 119 120 return sprintf(buf, "0x%x\n", attr.lid); 121 } 122 123 static ssize_t lid_mask_count_show(struct ib_port *p, 124 struct port_attribute *unused, 125 char *buf) 126 { 127 struct ib_port_attr attr; 128 ssize_t ret; 129 130 ret = ib_query_port(p->ibdev, p->port_num, &attr); 131 if (ret) 132 return ret; 133 134 return sprintf(buf, "%d\n", attr.lmc); 135 } 136 137 static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused, 138 char *buf) 139 { 140 struct ib_port_attr attr; 141 ssize_t ret; 142 143 ret = ib_query_port(p->ibdev, p->port_num, &attr); 144 if (ret) 145 return ret; 146 147 return sprintf(buf, "0x%x\n", attr.sm_lid); 148 } 149 150 static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused, 151 char *buf) 152 { 153 struct ib_port_attr attr; 154 ssize_t ret; 155 156 ret = ib_query_port(p->ibdev, p->port_num, &attr); 157 if (ret) 158 return ret; 159 160 return sprintf(buf, "%d\n", attr.sm_sl); 161 } 162 163 static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused, 164 char *buf) 165 { 166 struct ib_port_attr attr; 167 ssize_t ret; 168 169 ret = ib_query_port(p->ibdev, p->port_num, &attr); 170 if (ret) 171 return ret; 172 173 return sprintf(buf, "0x%08x\n", attr.port_cap_flags); 174 } 175 176 static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, 177 char *buf) 178 { 179 struct ib_port_attr attr; 180 char *speed = ""; 181 int rate; 182 ssize_t ret; 183 184 ret = ib_query_port(p->ibdev, p->port_num, &attr); 185 if (ret) 186 return ret; 187 188 switch (attr.active_speed) { 189 case 2: speed = " DDR"; break; 190 case 4: speed = " QDR"; break; 191 } 192 193 rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed; 194 if (rate < 0) 195 return -EINVAL; 196 197 return sprintf(buf, "%d%s Gb/sec (%dX%s)\n", 198 rate / 10, rate % 10 ? ".5" : "", 199 ib_width_enum_to_int(attr.active_width), speed); 200 } 201 202 static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused, 203 char *buf) 204 { 205 struct ib_port_attr attr; 206 207 ssize_t ret; 208 209 ret = ib_query_port(p->ibdev, p->port_num, &attr); 210 if (ret) 211 return ret; 212 213 switch (attr.phys_state) { 214 case 1: return sprintf(buf, "1: Sleep\n"); 215 case 2: return sprintf(buf, "2: Polling\n"); 216 case 3: return sprintf(buf, "3: Disabled\n"); 217 case 4: return sprintf(buf, "4: PortConfigurationTraining\n"); 218 case 5: return sprintf(buf, "5: LinkUp\n"); 219 case 6: return sprintf(buf, "6: LinkErrorRecovery\n"); 220 case 7: return sprintf(buf, "7: Phy Test\n"); 221 default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state); 222 } 223 } 224 225 static PORT_ATTR_RO(state); 226 static PORT_ATTR_RO(lid); 227 static PORT_ATTR_RO(lid_mask_count); 228 static PORT_ATTR_RO(sm_lid); 229 static PORT_ATTR_RO(sm_sl); 230 static PORT_ATTR_RO(cap_mask); 231 static PORT_ATTR_RO(rate); 232 static PORT_ATTR_RO(phys_state); 233 234 static struct attribute *port_default_attrs[] = { 235 &port_attr_state.attr, 236 &port_attr_lid.attr, 237 &port_attr_lid_mask_count.attr, 238 &port_attr_sm_lid.attr, 239 &port_attr_sm_sl.attr, 240 &port_attr_cap_mask.attr, 241 &port_attr_rate.attr, 242 &port_attr_phys_state.attr, 243 NULL 244 }; 245 246 static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr, 247 char *buf) 248 { 249 struct port_table_attribute *tab_attr = 250 container_of(attr, struct port_table_attribute, attr); 251 union ib_gid gid; 252 ssize_t ret; 253 254 ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid); 255 if (ret) 256 return ret; 257 258 return sprintf(buf, "%pI6\n", gid.raw); 259 } 260 261 static ssize_t show_port_pkey(struct ib_port *p, struct port_attribute *attr, 262 char *buf) 263 { 264 struct port_table_attribute *tab_attr = 265 container_of(attr, struct port_table_attribute, attr); 266 u16 pkey; 267 ssize_t ret; 268 269 ret = ib_query_pkey(p->ibdev, p->port_num, tab_attr->index, &pkey); 270 if (ret) 271 return ret; 272 273 return sprintf(buf, "0x%04x\n", pkey); 274 } 275 276 #define PORT_PMA_ATTR(_name, _counter, _width, _offset) \ 277 struct port_table_attribute port_pma_attr_##_name = { \ 278 .attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \ 279 .index = (_offset) | ((_width) << 16) | ((_counter) << 24) \ 280 } 281 282 static ssize_t show_pma_counter(struct ib_port *p, struct port_attribute *attr, 283 char *buf) 284 { 285 struct port_table_attribute *tab_attr = 286 container_of(attr, struct port_table_attribute, attr); 287 int offset = tab_attr->index & 0xffff; 288 int width = (tab_attr->index >> 16) & 0xff; 289 struct ib_mad *in_mad = NULL; 290 struct ib_mad *out_mad = NULL; 291 ssize_t ret; 292 293 if (!p->ibdev->process_mad) 294 return sprintf(buf, "N/A (no PMA)\n"); 295 296 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 297 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 298 if (!in_mad || !out_mad) { 299 ret = -ENOMEM; 300 goto out; 301 } 302 303 in_mad->mad_hdr.base_version = 1; 304 in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT; 305 in_mad->mad_hdr.class_version = 1; 306 in_mad->mad_hdr.method = IB_MGMT_METHOD_GET; 307 in_mad->mad_hdr.attr_id = cpu_to_be16(0x12); /* PortCounters */ 308 309 in_mad->data[41] = p->port_num; /* PortSelect field */ 310 311 if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY, 312 p->port_num, NULL, NULL, in_mad, out_mad) & 313 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) != 314 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) { 315 ret = -EINVAL; 316 goto out; 317 } 318 319 switch (width) { 320 case 4: 321 ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >> 322 (4 - (offset % 8))) & 0xf); 323 break; 324 case 8: 325 ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]); 326 break; 327 case 16: 328 ret = sprintf(buf, "%u\n", 329 be16_to_cpup((__be16 *)(out_mad->data + 40 + offset / 8))); 330 break; 331 case 32: 332 ret = sprintf(buf, "%u\n", 333 be32_to_cpup((__be32 *)(out_mad->data + 40 + offset / 8))); 334 break; 335 default: 336 ret = 0; 337 } 338 339 out: 340 kfree(in_mad); 341 kfree(out_mad); 342 343 return ret; 344 } 345 346 static PORT_PMA_ATTR(symbol_error , 0, 16, 32); 347 static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48); 348 static PORT_PMA_ATTR(link_downed , 2, 8, 56); 349 static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64); 350 static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80); 351 static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96); 352 static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112); 353 static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128); 354 static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136); 355 static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152); 356 static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156); 357 static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176); 358 static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192); 359 static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224); 360 static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256); 361 static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288); 362 363 static struct attribute *pma_attrs[] = { 364 &port_pma_attr_symbol_error.attr.attr, 365 &port_pma_attr_link_error_recovery.attr.attr, 366 &port_pma_attr_link_downed.attr.attr, 367 &port_pma_attr_port_rcv_errors.attr.attr, 368 &port_pma_attr_port_rcv_remote_physical_errors.attr.attr, 369 &port_pma_attr_port_rcv_switch_relay_errors.attr.attr, 370 &port_pma_attr_port_xmit_discards.attr.attr, 371 &port_pma_attr_port_xmit_constraint_errors.attr.attr, 372 &port_pma_attr_port_rcv_constraint_errors.attr.attr, 373 &port_pma_attr_local_link_integrity_errors.attr.attr, 374 &port_pma_attr_excessive_buffer_overrun_errors.attr.attr, 375 &port_pma_attr_VL15_dropped.attr.attr, 376 &port_pma_attr_port_xmit_data.attr.attr, 377 &port_pma_attr_port_rcv_data.attr.attr, 378 &port_pma_attr_port_xmit_packets.attr.attr, 379 &port_pma_attr_port_rcv_packets.attr.attr, 380 NULL 381 }; 382 383 static struct attribute_group pma_group = { 384 .name = "counters", 385 .attrs = pma_attrs 386 }; 387 388 static void ib_port_release(struct kobject *kobj) 389 { 390 struct ib_port *p = container_of(kobj, struct ib_port, kobj); 391 struct attribute *a; 392 int i; 393 394 for (i = 0; (a = p->gid_group.attrs[i]); ++i) 395 kfree(a); 396 397 kfree(p->gid_group.attrs); 398 399 for (i = 0; (a = p->pkey_group.attrs[i]); ++i) 400 kfree(a); 401 402 kfree(p->pkey_group.attrs); 403 404 kfree(p); 405 } 406 407 static struct kobj_type port_type = { 408 .release = ib_port_release, 409 .sysfs_ops = &port_sysfs_ops, 410 .default_attrs = port_default_attrs 411 }; 412 413 static void ib_device_release(struct device *device) 414 { 415 struct ib_device *dev = container_of(device, struct ib_device, dev); 416 417 kfree(dev); 418 } 419 420 static int ib_device_uevent(struct device *device, 421 struct kobj_uevent_env *env) 422 { 423 struct ib_device *dev = container_of(device, struct ib_device, dev); 424 425 if (add_uevent_var(env, "NAME=%s", dev->name)) 426 return -ENOMEM; 427 428 /* 429 * It would be nice to pass the node GUID with the event... 430 */ 431 432 return 0; 433 } 434 435 static struct attribute ** 436 alloc_group_attrs(ssize_t (*show)(struct ib_port *, 437 struct port_attribute *, char *buf), 438 int len) 439 { 440 struct attribute **tab_attr; 441 struct port_table_attribute *element; 442 int i; 443 444 tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL); 445 if (!tab_attr) 446 return NULL; 447 448 for (i = 0; i < len; i++) { 449 element = kzalloc(sizeof(struct port_table_attribute), 450 GFP_KERNEL); 451 if (!element) 452 goto err; 453 454 if (snprintf(element->name, sizeof(element->name), 455 "%d", i) >= sizeof(element->name)) { 456 kfree(element); 457 goto err; 458 } 459 460 element->attr.attr.name = element->name; 461 element->attr.attr.mode = S_IRUGO; 462 element->attr.show = show; 463 element->index = i; 464 sysfs_attr_init(&element->attr.attr); 465 466 tab_attr[i] = &element->attr.attr; 467 } 468 469 return tab_attr; 470 471 err: 472 while (--i >= 0) 473 kfree(tab_attr[i]); 474 kfree(tab_attr); 475 return NULL; 476 } 477 478 static int add_port(struct ib_device *device, int port_num) 479 { 480 struct ib_port *p; 481 struct ib_port_attr attr; 482 int i; 483 int ret; 484 485 ret = ib_query_port(device, port_num, &attr); 486 if (ret) 487 return ret; 488 489 p = kzalloc(sizeof *p, GFP_KERNEL); 490 if (!p) 491 return -ENOMEM; 492 493 p->ibdev = device; 494 p->port_num = port_num; 495 496 ret = kobject_init_and_add(&p->kobj, &port_type, 497 kobject_get(device->ports_parent), 498 "%d", port_num); 499 if (ret) 500 goto err_put; 501 502 ret = sysfs_create_group(&p->kobj, &pma_group); 503 if (ret) 504 goto err_put; 505 506 p->gid_group.name = "gids"; 507 p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len); 508 if (!p->gid_group.attrs) 509 goto err_remove_pma; 510 511 ret = sysfs_create_group(&p->kobj, &p->gid_group); 512 if (ret) 513 goto err_free_gid; 514 515 p->pkey_group.name = "pkeys"; 516 p->pkey_group.attrs = alloc_group_attrs(show_port_pkey, 517 attr.pkey_tbl_len); 518 if (!p->pkey_group.attrs) 519 goto err_remove_gid; 520 521 ret = sysfs_create_group(&p->kobj, &p->pkey_group); 522 if (ret) 523 goto err_free_pkey; 524 525 list_add_tail(&p->kobj.entry, &device->port_list); 526 527 kobject_uevent(&p->kobj, KOBJ_ADD); 528 return 0; 529 530 err_free_pkey: 531 for (i = 0; i < attr.pkey_tbl_len; ++i) 532 kfree(p->pkey_group.attrs[i]); 533 534 kfree(p->pkey_group.attrs); 535 536 err_remove_gid: 537 sysfs_remove_group(&p->kobj, &p->gid_group); 538 539 err_free_gid: 540 for (i = 0; i < attr.gid_tbl_len; ++i) 541 kfree(p->gid_group.attrs[i]); 542 543 kfree(p->gid_group.attrs); 544 545 err_remove_pma: 546 sysfs_remove_group(&p->kobj, &pma_group); 547 548 err_put: 549 kobject_put(device->ports_parent); 550 kfree(p); 551 return ret; 552 } 553 554 static ssize_t show_node_type(struct device *device, 555 struct device_attribute *attr, char *buf) 556 { 557 struct ib_device *dev = container_of(device, struct ib_device, dev); 558 559 switch (dev->node_type) { 560 case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type); 561 case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type); 562 case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); 563 case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); 564 default: return sprintf(buf, "%d: <unknown>\n", dev->node_type); 565 } 566 } 567 568 static ssize_t show_sys_image_guid(struct device *device, 569 struct device_attribute *dev_attr, char *buf) 570 { 571 struct ib_device *dev = container_of(device, struct ib_device, dev); 572 struct ib_device_attr attr; 573 ssize_t ret; 574 575 ret = ib_query_device(dev, &attr); 576 if (ret) 577 return ret; 578 579 return sprintf(buf, "%04x:%04x:%04x:%04x\n", 580 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[0]), 581 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[1]), 582 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[2]), 583 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[3])); 584 } 585 586 static ssize_t show_node_guid(struct device *device, 587 struct device_attribute *attr, char *buf) 588 { 589 struct ib_device *dev = container_of(device, struct ib_device, dev); 590 591 return sprintf(buf, "%04x:%04x:%04x:%04x\n", 592 be16_to_cpu(((__be16 *) &dev->node_guid)[0]), 593 be16_to_cpu(((__be16 *) &dev->node_guid)[1]), 594 be16_to_cpu(((__be16 *) &dev->node_guid)[2]), 595 be16_to_cpu(((__be16 *) &dev->node_guid)[3])); 596 } 597 598 static ssize_t show_node_desc(struct device *device, 599 struct device_attribute *attr, char *buf) 600 { 601 struct ib_device *dev = container_of(device, struct ib_device, dev); 602 603 return sprintf(buf, "%.64s\n", dev->node_desc); 604 } 605 606 static ssize_t set_node_desc(struct device *device, 607 struct device_attribute *attr, 608 const char *buf, size_t count) 609 { 610 struct ib_device *dev = container_of(device, struct ib_device, dev); 611 struct ib_device_modify desc = {}; 612 int ret; 613 614 if (!dev->modify_device) 615 return -EIO; 616 617 memcpy(desc.node_desc, buf, min_t(int, count, 64)); 618 ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc); 619 if (ret) 620 return ret; 621 622 return count; 623 } 624 625 static DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL); 626 static DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL); 627 static DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL); 628 static DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, set_node_desc); 629 630 static struct device_attribute *ib_class_attributes[] = { 631 &dev_attr_node_type, 632 &dev_attr_sys_image_guid, 633 &dev_attr_node_guid, 634 &dev_attr_node_desc 635 }; 636 637 static struct class ib_class = { 638 .name = "infiniband", 639 .dev_release = ib_device_release, 640 .dev_uevent = ib_device_uevent, 641 }; 642 643 /* Show a given an attribute in the statistics group */ 644 static ssize_t show_protocol_stat(const struct device *device, 645 struct device_attribute *attr, char *buf, 646 unsigned offset) 647 { 648 struct ib_device *dev = container_of(device, struct ib_device, dev); 649 union rdma_protocol_stats stats; 650 ssize_t ret; 651 652 ret = dev->get_protocol_stats(dev, &stats); 653 if (ret) 654 return ret; 655 656 return sprintf(buf, "%llu\n", 657 (unsigned long long) ((u64 *) &stats)[offset]); 658 } 659 660 /* generate a read-only iwarp statistics attribute */ 661 #define IW_STATS_ENTRY(name) \ 662 static ssize_t show_##name(struct device *device, \ 663 struct device_attribute *attr, char *buf) \ 664 { \ 665 return show_protocol_stat(device, attr, buf, \ 666 offsetof(struct iw_protocol_stats, name) / \ 667 sizeof (u64)); \ 668 } \ 669 static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) 670 671 IW_STATS_ENTRY(ipInReceives); 672 IW_STATS_ENTRY(ipInHdrErrors); 673 IW_STATS_ENTRY(ipInTooBigErrors); 674 IW_STATS_ENTRY(ipInNoRoutes); 675 IW_STATS_ENTRY(ipInAddrErrors); 676 IW_STATS_ENTRY(ipInUnknownProtos); 677 IW_STATS_ENTRY(ipInTruncatedPkts); 678 IW_STATS_ENTRY(ipInDiscards); 679 IW_STATS_ENTRY(ipInDelivers); 680 IW_STATS_ENTRY(ipOutForwDatagrams); 681 IW_STATS_ENTRY(ipOutRequests); 682 IW_STATS_ENTRY(ipOutDiscards); 683 IW_STATS_ENTRY(ipOutNoRoutes); 684 IW_STATS_ENTRY(ipReasmTimeout); 685 IW_STATS_ENTRY(ipReasmReqds); 686 IW_STATS_ENTRY(ipReasmOKs); 687 IW_STATS_ENTRY(ipReasmFails); 688 IW_STATS_ENTRY(ipFragOKs); 689 IW_STATS_ENTRY(ipFragFails); 690 IW_STATS_ENTRY(ipFragCreates); 691 IW_STATS_ENTRY(ipInMcastPkts); 692 IW_STATS_ENTRY(ipOutMcastPkts); 693 IW_STATS_ENTRY(ipInBcastPkts); 694 IW_STATS_ENTRY(ipOutBcastPkts); 695 IW_STATS_ENTRY(tcpRtoAlgorithm); 696 IW_STATS_ENTRY(tcpRtoMin); 697 IW_STATS_ENTRY(tcpRtoMax); 698 IW_STATS_ENTRY(tcpMaxConn); 699 IW_STATS_ENTRY(tcpActiveOpens); 700 IW_STATS_ENTRY(tcpPassiveOpens); 701 IW_STATS_ENTRY(tcpAttemptFails); 702 IW_STATS_ENTRY(tcpEstabResets); 703 IW_STATS_ENTRY(tcpCurrEstab); 704 IW_STATS_ENTRY(tcpInSegs); 705 IW_STATS_ENTRY(tcpOutSegs); 706 IW_STATS_ENTRY(tcpRetransSegs); 707 IW_STATS_ENTRY(tcpInErrs); 708 IW_STATS_ENTRY(tcpOutRsts); 709 710 static struct attribute *iw_proto_stats_attrs[] = { 711 &dev_attr_ipInReceives.attr, 712 &dev_attr_ipInHdrErrors.attr, 713 &dev_attr_ipInTooBigErrors.attr, 714 &dev_attr_ipInNoRoutes.attr, 715 &dev_attr_ipInAddrErrors.attr, 716 &dev_attr_ipInUnknownProtos.attr, 717 &dev_attr_ipInTruncatedPkts.attr, 718 &dev_attr_ipInDiscards.attr, 719 &dev_attr_ipInDelivers.attr, 720 &dev_attr_ipOutForwDatagrams.attr, 721 &dev_attr_ipOutRequests.attr, 722 &dev_attr_ipOutDiscards.attr, 723 &dev_attr_ipOutNoRoutes.attr, 724 &dev_attr_ipReasmTimeout.attr, 725 &dev_attr_ipReasmReqds.attr, 726 &dev_attr_ipReasmOKs.attr, 727 &dev_attr_ipReasmFails.attr, 728 &dev_attr_ipFragOKs.attr, 729 &dev_attr_ipFragFails.attr, 730 &dev_attr_ipFragCreates.attr, 731 &dev_attr_ipInMcastPkts.attr, 732 &dev_attr_ipOutMcastPkts.attr, 733 &dev_attr_ipInBcastPkts.attr, 734 &dev_attr_ipOutBcastPkts.attr, 735 &dev_attr_tcpRtoAlgorithm.attr, 736 &dev_attr_tcpRtoMin.attr, 737 &dev_attr_tcpRtoMax.attr, 738 &dev_attr_tcpMaxConn.attr, 739 &dev_attr_tcpActiveOpens.attr, 740 &dev_attr_tcpPassiveOpens.attr, 741 &dev_attr_tcpAttemptFails.attr, 742 &dev_attr_tcpEstabResets.attr, 743 &dev_attr_tcpCurrEstab.attr, 744 &dev_attr_tcpInSegs.attr, 745 &dev_attr_tcpOutSegs.attr, 746 &dev_attr_tcpRetransSegs.attr, 747 &dev_attr_tcpInErrs.attr, 748 &dev_attr_tcpOutRsts.attr, 749 NULL 750 }; 751 752 static struct attribute_group iw_stats_group = { 753 .name = "proto_stats", 754 .attrs = iw_proto_stats_attrs, 755 }; 756 757 int ib_device_register_sysfs(struct ib_device *device) 758 { 759 struct device *class_dev = &device->dev; 760 int ret; 761 int i; 762 763 class_dev->class = &ib_class; 764 class_dev->parent = device->dma_device; 765 dev_set_name(class_dev, device->name); 766 dev_set_drvdata(class_dev, device); 767 768 INIT_LIST_HEAD(&device->port_list); 769 770 ret = device_register(class_dev); 771 if (ret) 772 goto err; 773 774 for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) { 775 ret = device_create_file(class_dev, ib_class_attributes[i]); 776 if (ret) 777 goto err_unregister; 778 } 779 780 device->ports_parent = kobject_create_and_add("ports", 781 kobject_get(&class_dev->kobj)); 782 if (!device->ports_parent) { 783 ret = -ENOMEM; 784 goto err_put; 785 } 786 787 if (device->node_type == RDMA_NODE_IB_SWITCH) { 788 ret = add_port(device, 0); 789 if (ret) 790 goto err_put; 791 } else { 792 for (i = 1; i <= device->phys_port_cnt; ++i) { 793 ret = add_port(device, i); 794 if (ret) 795 goto err_put; 796 } 797 } 798 799 if (device->node_type == RDMA_NODE_RNIC && device->get_protocol_stats) { 800 ret = sysfs_create_group(&class_dev->kobj, &iw_stats_group); 801 if (ret) 802 goto err_put; 803 } 804 805 return 0; 806 807 err_put: 808 { 809 struct kobject *p, *t; 810 struct ib_port *port; 811 812 list_for_each_entry_safe(p, t, &device->port_list, entry) { 813 list_del(&p->entry); 814 port = container_of(p, struct ib_port, kobj); 815 sysfs_remove_group(p, &pma_group); 816 sysfs_remove_group(p, &port->pkey_group); 817 sysfs_remove_group(p, &port->gid_group); 818 kobject_put(p); 819 } 820 } 821 822 kobject_put(&class_dev->kobj); 823 824 err_unregister: 825 device_unregister(class_dev); 826 827 err: 828 return ret; 829 } 830 831 void ib_device_unregister_sysfs(struct ib_device *device) 832 { 833 struct kobject *p, *t; 834 struct ib_port *port; 835 836 /* Hold kobject until ib_dealloc_device() */ 837 kobject_get(&device->dev.kobj); 838 839 list_for_each_entry_safe(p, t, &device->port_list, entry) { 840 list_del(&p->entry); 841 port = container_of(p, struct ib_port, kobj); 842 sysfs_remove_group(p, &pma_group); 843 sysfs_remove_group(p, &port->pkey_group); 844 sysfs_remove_group(p, &port->gid_group); 845 kobject_put(p); 846 } 847 848 kobject_put(device->ports_parent); 849 device_unregister(&device->dev); 850 } 851 852 int ib_sysfs_setup(void) 853 { 854 return class_register(&ib_class); 855 } 856 857 void ib_sysfs_cleanup(void) 858 { 859 class_unregister(&ib_class); 860 } 861