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 inline int ibdev_is_alive(const struct ib_device *dev) 70 { 71 return dev->reg_state == IB_DEV_REGISTERED; 72 } 73 74 static ssize_t port_attr_show(struct kobject *kobj, 75 struct attribute *attr, char *buf) 76 { 77 struct port_attribute *port_attr = 78 container_of(attr, struct port_attribute, attr); 79 struct ib_port *p = container_of(kobj, struct ib_port, kobj); 80 81 if (!port_attr->show) 82 return -EIO; 83 if (!ibdev_is_alive(p->ibdev)) 84 return -ENODEV; 85 86 return port_attr->show(p, port_attr, buf); 87 } 88 89 static struct sysfs_ops port_sysfs_ops = { 90 .show = port_attr_show 91 }; 92 93 static ssize_t state_show(struct ib_port *p, struct port_attribute *unused, 94 char *buf) 95 { 96 struct ib_port_attr attr; 97 ssize_t ret; 98 99 static const char *state_name[] = { 100 [IB_PORT_NOP] = "NOP", 101 [IB_PORT_DOWN] = "DOWN", 102 [IB_PORT_INIT] = "INIT", 103 [IB_PORT_ARMED] = "ARMED", 104 [IB_PORT_ACTIVE] = "ACTIVE", 105 [IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER" 106 }; 107 108 ret = ib_query_port(p->ibdev, p->port_num, &attr); 109 if (ret) 110 return ret; 111 112 return sprintf(buf, "%d: %s\n", attr.state, 113 attr.state >= 0 && attr.state < ARRAY_SIZE(state_name) ? 114 state_name[attr.state] : "UNKNOWN"); 115 } 116 117 static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused, 118 char *buf) 119 { 120 struct ib_port_attr attr; 121 ssize_t ret; 122 123 ret = ib_query_port(p->ibdev, p->port_num, &attr); 124 if (ret) 125 return ret; 126 127 return sprintf(buf, "0x%x\n", attr.lid); 128 } 129 130 static ssize_t lid_mask_count_show(struct ib_port *p, 131 struct port_attribute *unused, 132 char *buf) 133 { 134 struct ib_port_attr attr; 135 ssize_t ret; 136 137 ret = ib_query_port(p->ibdev, p->port_num, &attr); 138 if (ret) 139 return ret; 140 141 return sprintf(buf, "%d\n", attr.lmc); 142 } 143 144 static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused, 145 char *buf) 146 { 147 struct ib_port_attr attr; 148 ssize_t ret; 149 150 ret = ib_query_port(p->ibdev, p->port_num, &attr); 151 if (ret) 152 return ret; 153 154 return sprintf(buf, "0x%x\n", attr.sm_lid); 155 } 156 157 static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused, 158 char *buf) 159 { 160 struct ib_port_attr attr; 161 ssize_t ret; 162 163 ret = ib_query_port(p->ibdev, p->port_num, &attr); 164 if (ret) 165 return ret; 166 167 return sprintf(buf, "%d\n", attr.sm_sl); 168 } 169 170 static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused, 171 char *buf) 172 { 173 struct ib_port_attr attr; 174 ssize_t ret; 175 176 ret = ib_query_port(p->ibdev, p->port_num, &attr); 177 if (ret) 178 return ret; 179 180 return sprintf(buf, "0x%08x\n", attr.port_cap_flags); 181 } 182 183 static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, 184 char *buf) 185 { 186 struct ib_port_attr attr; 187 char *speed = ""; 188 int rate; 189 ssize_t ret; 190 191 ret = ib_query_port(p->ibdev, p->port_num, &attr); 192 if (ret) 193 return ret; 194 195 switch (attr.active_speed) { 196 case 2: speed = " DDR"; break; 197 case 4: speed = " QDR"; break; 198 } 199 200 rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed; 201 if (rate < 0) 202 return -EINVAL; 203 204 return sprintf(buf, "%d%s Gb/sec (%dX%s)\n", 205 rate / 10, rate % 10 ? ".5" : "", 206 ib_width_enum_to_int(attr.active_width), speed); 207 } 208 209 static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused, 210 char *buf) 211 { 212 struct ib_port_attr attr; 213 214 ssize_t ret; 215 216 ret = ib_query_port(p->ibdev, p->port_num, &attr); 217 if (ret) 218 return ret; 219 220 switch (attr.phys_state) { 221 case 1: return sprintf(buf, "1: Sleep\n"); 222 case 2: return sprintf(buf, "2: Polling\n"); 223 case 3: return sprintf(buf, "3: Disabled\n"); 224 case 4: return sprintf(buf, "4: PortConfigurationTraining\n"); 225 case 5: return sprintf(buf, "5: LinkUp\n"); 226 case 6: return sprintf(buf, "6: LinkErrorRecovery\n"); 227 case 7: return sprintf(buf, "7: Phy Test\n"); 228 default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state); 229 } 230 } 231 232 static PORT_ATTR_RO(state); 233 static PORT_ATTR_RO(lid); 234 static PORT_ATTR_RO(lid_mask_count); 235 static PORT_ATTR_RO(sm_lid); 236 static PORT_ATTR_RO(sm_sl); 237 static PORT_ATTR_RO(cap_mask); 238 static PORT_ATTR_RO(rate); 239 static PORT_ATTR_RO(phys_state); 240 241 static struct attribute *port_default_attrs[] = { 242 &port_attr_state.attr, 243 &port_attr_lid.attr, 244 &port_attr_lid_mask_count.attr, 245 &port_attr_sm_lid.attr, 246 &port_attr_sm_sl.attr, 247 &port_attr_cap_mask.attr, 248 &port_attr_rate.attr, 249 &port_attr_phys_state.attr, 250 NULL 251 }; 252 253 static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr, 254 char *buf) 255 { 256 struct port_table_attribute *tab_attr = 257 container_of(attr, struct port_table_attribute, attr); 258 union ib_gid gid; 259 ssize_t ret; 260 261 ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid); 262 if (ret) 263 return ret; 264 265 return sprintf(buf, "%pI6\n", gid.raw); 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 = kzalloc(sizeof *in_mad, GFP_KERNEL); 304 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 305 if (!in_mad || !out_mad) { 306 ret = -ENOMEM; 307 goto out; 308 } 309 310 in_mad->mad_hdr.base_version = 1; 311 in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT; 312 in_mad->mad_hdr.class_version = 1; 313 in_mad->mad_hdr.method = IB_MGMT_METHOD_GET; 314 in_mad->mad_hdr.attr_id = cpu_to_be16(0x12); /* PortCounters */ 315 316 in_mad->data[41] = p->port_num; /* PortSelect field */ 317 318 if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY, 319 p->port_num, NULL, NULL, in_mad, out_mad) & 320 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) != 321 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) { 322 ret = -EINVAL; 323 goto out; 324 } 325 326 switch (width) { 327 case 4: 328 ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >> 329 (4 - (offset % 8))) & 0xf); 330 break; 331 case 8: 332 ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]); 333 break; 334 case 16: 335 ret = sprintf(buf, "%u\n", 336 be16_to_cpup((__be16 *)(out_mad->data + 40 + offset / 8))); 337 break; 338 case 32: 339 ret = sprintf(buf, "%u\n", 340 be32_to_cpup((__be32 *)(out_mad->data + 40 + offset / 8))); 341 break; 342 default: 343 ret = 0; 344 } 345 346 out: 347 kfree(in_mad); 348 kfree(out_mad); 349 350 return ret; 351 } 352 353 static PORT_PMA_ATTR(symbol_error , 0, 16, 32); 354 static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48); 355 static PORT_PMA_ATTR(link_downed , 2, 8, 56); 356 static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64); 357 static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80); 358 static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96); 359 static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112); 360 static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128); 361 static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136); 362 static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152); 363 static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156); 364 static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176); 365 static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192); 366 static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224); 367 static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256); 368 static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288); 369 370 static struct attribute *pma_attrs[] = { 371 &port_pma_attr_symbol_error.attr.attr, 372 &port_pma_attr_link_error_recovery.attr.attr, 373 &port_pma_attr_link_downed.attr.attr, 374 &port_pma_attr_port_rcv_errors.attr.attr, 375 &port_pma_attr_port_rcv_remote_physical_errors.attr.attr, 376 &port_pma_attr_port_rcv_switch_relay_errors.attr.attr, 377 &port_pma_attr_port_xmit_discards.attr.attr, 378 &port_pma_attr_port_xmit_constraint_errors.attr.attr, 379 &port_pma_attr_port_rcv_constraint_errors.attr.attr, 380 &port_pma_attr_local_link_integrity_errors.attr.attr, 381 &port_pma_attr_excessive_buffer_overrun_errors.attr.attr, 382 &port_pma_attr_VL15_dropped.attr.attr, 383 &port_pma_attr_port_xmit_data.attr.attr, 384 &port_pma_attr_port_rcv_data.attr.attr, 385 &port_pma_attr_port_xmit_packets.attr.attr, 386 &port_pma_attr_port_rcv_packets.attr.attr, 387 NULL 388 }; 389 390 static struct attribute_group pma_group = { 391 .name = "counters", 392 .attrs = pma_attrs 393 }; 394 395 static void ib_port_release(struct kobject *kobj) 396 { 397 struct ib_port *p = container_of(kobj, struct ib_port, kobj); 398 struct attribute *a; 399 int i; 400 401 for (i = 0; (a = p->gid_group.attrs[i]); ++i) 402 kfree(a); 403 404 kfree(p->gid_group.attrs); 405 406 for (i = 0; (a = p->pkey_group.attrs[i]); ++i) 407 kfree(a); 408 409 kfree(p->pkey_group.attrs); 410 411 kfree(p); 412 } 413 414 static struct kobj_type port_type = { 415 .release = ib_port_release, 416 .sysfs_ops = &port_sysfs_ops, 417 .default_attrs = port_default_attrs 418 }; 419 420 static void ib_device_release(struct device *device) 421 { 422 struct ib_device *dev = container_of(device, struct ib_device, dev); 423 424 kfree(dev); 425 } 426 427 static int ib_device_uevent(struct device *device, 428 struct kobj_uevent_env *env) 429 { 430 struct ib_device *dev = container_of(device, struct ib_device, dev); 431 432 if (add_uevent_var(env, "NAME=%s", dev->name)) 433 return -ENOMEM; 434 435 /* 436 * It would be nice to pass the node GUID with the event... 437 */ 438 439 return 0; 440 } 441 442 static struct attribute ** 443 alloc_group_attrs(ssize_t (*show)(struct ib_port *, 444 struct port_attribute *, char *buf), 445 int len) 446 { 447 struct attribute **tab_attr; 448 struct port_table_attribute *element; 449 int i; 450 451 tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL); 452 if (!tab_attr) 453 return NULL; 454 455 for (i = 0; i < len; i++) { 456 element = kzalloc(sizeof(struct port_table_attribute), 457 GFP_KERNEL); 458 if (!element) 459 goto err; 460 461 if (snprintf(element->name, sizeof(element->name), 462 "%d", i) >= sizeof(element->name)) { 463 kfree(element); 464 goto err; 465 } 466 467 element->attr.attr.name = element->name; 468 element->attr.attr.mode = S_IRUGO; 469 element->attr.show = show; 470 element->index = i; 471 472 tab_attr[i] = &element->attr.attr; 473 } 474 475 return tab_attr; 476 477 err: 478 while (--i >= 0) 479 kfree(tab_attr[i]); 480 kfree(tab_attr); 481 return NULL; 482 } 483 484 static int add_port(struct ib_device *device, int port_num) 485 { 486 struct ib_port *p; 487 struct ib_port_attr attr; 488 int i; 489 int ret; 490 491 ret = ib_query_port(device, port_num, &attr); 492 if (ret) 493 return ret; 494 495 p = kzalloc(sizeof *p, GFP_KERNEL); 496 if (!p) 497 return -ENOMEM; 498 499 p->ibdev = device; 500 p->port_num = port_num; 501 502 ret = kobject_init_and_add(&p->kobj, &port_type, 503 kobject_get(device->ports_parent), 504 "%d", port_num); 505 if (ret) 506 goto err_put; 507 508 ret = sysfs_create_group(&p->kobj, &pma_group); 509 if (ret) 510 goto err_put; 511 512 p->gid_group.name = "gids"; 513 p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len); 514 if (!p->gid_group.attrs) 515 goto err_remove_pma; 516 517 ret = sysfs_create_group(&p->kobj, &p->gid_group); 518 if (ret) 519 goto err_free_gid; 520 521 p->pkey_group.name = "pkeys"; 522 p->pkey_group.attrs = alloc_group_attrs(show_port_pkey, 523 attr.pkey_tbl_len); 524 if (!p->pkey_group.attrs) 525 goto err_remove_gid; 526 527 ret = sysfs_create_group(&p->kobj, &p->pkey_group); 528 if (ret) 529 goto err_free_pkey; 530 531 list_add_tail(&p->kobj.entry, &device->port_list); 532 533 kobject_uevent(&p->kobj, KOBJ_ADD); 534 return 0; 535 536 err_free_pkey: 537 for (i = 0; i < attr.pkey_tbl_len; ++i) 538 kfree(p->pkey_group.attrs[i]); 539 540 kfree(p->pkey_group.attrs); 541 542 err_remove_gid: 543 sysfs_remove_group(&p->kobj, &p->gid_group); 544 545 err_free_gid: 546 for (i = 0; i < attr.gid_tbl_len; ++i) 547 kfree(p->gid_group.attrs[i]); 548 549 kfree(p->gid_group.attrs); 550 551 err_remove_pma: 552 sysfs_remove_group(&p->kobj, &pma_group); 553 554 err_put: 555 kobject_put(device->ports_parent); 556 kfree(p); 557 return ret; 558 } 559 560 static ssize_t show_node_type(struct device *device, 561 struct device_attribute *attr, char *buf) 562 { 563 struct ib_device *dev = container_of(device, struct ib_device, dev); 564 565 if (!ibdev_is_alive(dev)) 566 return -ENODEV; 567 568 switch (dev->node_type) { 569 case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type); 570 case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type); 571 case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); 572 case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); 573 default: return sprintf(buf, "%d: <unknown>\n", dev->node_type); 574 } 575 } 576 577 static ssize_t show_sys_image_guid(struct device *device, 578 struct device_attribute *dev_attr, char *buf) 579 { 580 struct ib_device *dev = container_of(device, struct ib_device, dev); 581 struct ib_device_attr attr; 582 ssize_t ret; 583 584 if (!ibdev_is_alive(dev)) 585 return -ENODEV; 586 587 ret = ib_query_device(dev, &attr); 588 if (ret) 589 return ret; 590 591 return sprintf(buf, "%04x:%04x:%04x:%04x\n", 592 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[0]), 593 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[1]), 594 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[2]), 595 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[3])); 596 } 597 598 static ssize_t show_node_guid(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 if (!ibdev_is_alive(dev)) 604 return -ENODEV; 605 606 return sprintf(buf, "%04x:%04x:%04x:%04x\n", 607 be16_to_cpu(((__be16 *) &dev->node_guid)[0]), 608 be16_to_cpu(((__be16 *) &dev->node_guid)[1]), 609 be16_to_cpu(((__be16 *) &dev->node_guid)[2]), 610 be16_to_cpu(((__be16 *) &dev->node_guid)[3])); 611 } 612 613 static ssize_t show_node_desc(struct device *device, 614 struct device_attribute *attr, char *buf) 615 { 616 struct ib_device *dev = container_of(device, struct ib_device, dev); 617 618 return sprintf(buf, "%.64s\n", dev->node_desc); 619 } 620 621 static ssize_t set_node_desc(struct device *device, 622 struct device_attribute *attr, 623 const char *buf, size_t count) 624 { 625 struct ib_device *dev = container_of(device, struct ib_device, dev); 626 struct ib_device_modify desc = {}; 627 int ret; 628 629 if (!dev->modify_device) 630 return -EIO; 631 632 memcpy(desc.node_desc, buf, min_t(int, count, 64)); 633 ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc); 634 if (ret) 635 return ret; 636 637 return count; 638 } 639 640 static DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL); 641 static DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL); 642 static DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL); 643 static DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, set_node_desc); 644 645 static struct device_attribute *ib_class_attributes[] = { 646 &dev_attr_node_type, 647 &dev_attr_sys_image_guid, 648 &dev_attr_node_guid, 649 &dev_attr_node_desc 650 }; 651 652 static struct class ib_class = { 653 .name = "infiniband", 654 .dev_release = ib_device_release, 655 .dev_uevent = ib_device_uevent, 656 }; 657 658 /* Show a given an attribute in the statistics group */ 659 static ssize_t show_protocol_stat(const struct device *device, 660 struct device_attribute *attr, char *buf, 661 unsigned offset) 662 { 663 struct ib_device *dev = container_of(device, struct ib_device, dev); 664 union rdma_protocol_stats stats; 665 ssize_t ret; 666 667 ret = dev->get_protocol_stats(dev, &stats); 668 if (ret) 669 return ret; 670 671 return sprintf(buf, "%llu\n", 672 (unsigned long long) ((u64 *) &stats)[offset]); 673 } 674 675 /* generate a read-only iwarp statistics attribute */ 676 #define IW_STATS_ENTRY(name) \ 677 static ssize_t show_##name(struct device *device, \ 678 struct device_attribute *attr, char *buf) \ 679 { \ 680 return show_protocol_stat(device, attr, buf, \ 681 offsetof(struct iw_protocol_stats, name) / \ 682 sizeof (u64)); \ 683 } \ 684 static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) 685 686 IW_STATS_ENTRY(ipInReceives); 687 IW_STATS_ENTRY(ipInHdrErrors); 688 IW_STATS_ENTRY(ipInTooBigErrors); 689 IW_STATS_ENTRY(ipInNoRoutes); 690 IW_STATS_ENTRY(ipInAddrErrors); 691 IW_STATS_ENTRY(ipInUnknownProtos); 692 IW_STATS_ENTRY(ipInTruncatedPkts); 693 IW_STATS_ENTRY(ipInDiscards); 694 IW_STATS_ENTRY(ipInDelivers); 695 IW_STATS_ENTRY(ipOutForwDatagrams); 696 IW_STATS_ENTRY(ipOutRequests); 697 IW_STATS_ENTRY(ipOutDiscards); 698 IW_STATS_ENTRY(ipOutNoRoutes); 699 IW_STATS_ENTRY(ipReasmTimeout); 700 IW_STATS_ENTRY(ipReasmReqds); 701 IW_STATS_ENTRY(ipReasmOKs); 702 IW_STATS_ENTRY(ipReasmFails); 703 IW_STATS_ENTRY(ipFragOKs); 704 IW_STATS_ENTRY(ipFragFails); 705 IW_STATS_ENTRY(ipFragCreates); 706 IW_STATS_ENTRY(ipInMcastPkts); 707 IW_STATS_ENTRY(ipOutMcastPkts); 708 IW_STATS_ENTRY(ipInBcastPkts); 709 IW_STATS_ENTRY(ipOutBcastPkts); 710 IW_STATS_ENTRY(tcpRtoAlgorithm); 711 IW_STATS_ENTRY(tcpRtoMin); 712 IW_STATS_ENTRY(tcpRtoMax); 713 IW_STATS_ENTRY(tcpMaxConn); 714 IW_STATS_ENTRY(tcpActiveOpens); 715 IW_STATS_ENTRY(tcpPassiveOpens); 716 IW_STATS_ENTRY(tcpAttemptFails); 717 IW_STATS_ENTRY(tcpEstabResets); 718 IW_STATS_ENTRY(tcpCurrEstab); 719 IW_STATS_ENTRY(tcpInSegs); 720 IW_STATS_ENTRY(tcpOutSegs); 721 IW_STATS_ENTRY(tcpRetransSegs); 722 IW_STATS_ENTRY(tcpInErrs); 723 IW_STATS_ENTRY(tcpOutRsts); 724 725 static struct attribute *iw_proto_stats_attrs[] = { 726 &dev_attr_ipInReceives.attr, 727 &dev_attr_ipInHdrErrors.attr, 728 &dev_attr_ipInTooBigErrors.attr, 729 &dev_attr_ipInNoRoutes.attr, 730 &dev_attr_ipInAddrErrors.attr, 731 &dev_attr_ipInUnknownProtos.attr, 732 &dev_attr_ipInTruncatedPkts.attr, 733 &dev_attr_ipInDiscards.attr, 734 &dev_attr_ipInDelivers.attr, 735 &dev_attr_ipOutForwDatagrams.attr, 736 &dev_attr_ipOutRequests.attr, 737 &dev_attr_ipOutDiscards.attr, 738 &dev_attr_ipOutNoRoutes.attr, 739 &dev_attr_ipReasmTimeout.attr, 740 &dev_attr_ipReasmReqds.attr, 741 &dev_attr_ipReasmOKs.attr, 742 &dev_attr_ipReasmFails.attr, 743 &dev_attr_ipFragOKs.attr, 744 &dev_attr_ipFragFails.attr, 745 &dev_attr_ipFragCreates.attr, 746 &dev_attr_ipInMcastPkts.attr, 747 &dev_attr_ipOutMcastPkts.attr, 748 &dev_attr_ipInBcastPkts.attr, 749 &dev_attr_ipOutBcastPkts.attr, 750 &dev_attr_tcpRtoAlgorithm.attr, 751 &dev_attr_tcpRtoMin.attr, 752 &dev_attr_tcpRtoMax.attr, 753 &dev_attr_tcpMaxConn.attr, 754 &dev_attr_tcpActiveOpens.attr, 755 &dev_attr_tcpPassiveOpens.attr, 756 &dev_attr_tcpAttemptFails.attr, 757 &dev_attr_tcpEstabResets.attr, 758 &dev_attr_tcpCurrEstab.attr, 759 &dev_attr_tcpInSegs.attr, 760 &dev_attr_tcpOutSegs.attr, 761 &dev_attr_tcpRetransSegs.attr, 762 &dev_attr_tcpInErrs.attr, 763 &dev_attr_tcpOutRsts.attr, 764 NULL 765 }; 766 767 static struct attribute_group iw_stats_group = { 768 .name = "proto_stats", 769 .attrs = iw_proto_stats_attrs, 770 }; 771 772 int ib_device_register_sysfs(struct ib_device *device) 773 { 774 struct device *class_dev = &device->dev; 775 int ret; 776 int i; 777 778 class_dev->class = &ib_class; 779 class_dev->driver_data = device; 780 class_dev->parent = device->dma_device; 781 dev_set_name(class_dev, device->name); 782 783 INIT_LIST_HEAD(&device->port_list); 784 785 ret = device_register(class_dev); 786 if (ret) 787 goto err; 788 789 for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) { 790 ret = device_create_file(class_dev, ib_class_attributes[i]); 791 if (ret) 792 goto err_unregister; 793 } 794 795 device->ports_parent = kobject_create_and_add("ports", 796 kobject_get(&class_dev->kobj)); 797 if (!device->ports_parent) { 798 ret = -ENOMEM; 799 goto err_put; 800 } 801 802 if (device->node_type == RDMA_NODE_IB_SWITCH) { 803 ret = add_port(device, 0); 804 if (ret) 805 goto err_put; 806 } else { 807 for (i = 1; i <= device->phys_port_cnt; ++i) { 808 ret = add_port(device, i); 809 if (ret) 810 goto err_put; 811 } 812 } 813 814 if (device->node_type == RDMA_NODE_RNIC && device->get_protocol_stats) { 815 ret = sysfs_create_group(&class_dev->kobj, &iw_stats_group); 816 if (ret) 817 goto err_put; 818 } 819 820 return 0; 821 822 err_put: 823 { 824 struct kobject *p, *t; 825 struct ib_port *port; 826 827 list_for_each_entry_safe(p, t, &device->port_list, entry) { 828 list_del(&p->entry); 829 port = container_of(p, struct ib_port, kobj); 830 sysfs_remove_group(p, &pma_group); 831 sysfs_remove_group(p, &port->pkey_group); 832 sysfs_remove_group(p, &port->gid_group); 833 kobject_put(p); 834 } 835 } 836 837 kobject_put(&class_dev->kobj); 838 839 err_unregister: 840 device_unregister(class_dev); 841 842 err: 843 return ret; 844 } 845 846 void ib_device_unregister_sysfs(struct ib_device *device) 847 { 848 struct kobject *p, *t; 849 struct ib_port *port; 850 851 list_for_each_entry_safe(p, t, &device->port_list, entry) { 852 list_del(&p->entry); 853 port = container_of(p, struct ib_port, kobj); 854 sysfs_remove_group(p, &pma_group); 855 sysfs_remove_group(p, &port->pkey_group); 856 sysfs_remove_group(p, &port->gid_group); 857 kobject_put(p); 858 } 859 860 kobject_put(device->ports_parent); 861 device_unregister(&device->dev); 862 } 863 864 int ib_sysfs_setup(void) 865 { 866 return class_register(&ib_class); 867 } 868 869 void ib_sysfs_cleanup(void) 870 { 871 class_unregister(&ib_class); 872 } 873