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#include <linux/fs.h> 40 41#include <rdma/ib_mad.h> 42#include <rdma/ib_pma.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 ssize_t port_attr_show(struct kobject *kobj, 72 struct attribute *attr, char *buf) 73{ 74 struct port_attribute *port_attr = 75 container_of(attr, struct port_attribute, attr); 76 struct ib_port *p = container_of(kobj, struct ib_port, kobj); 77 78 if (!port_attr->show) 79 return -EIO; 80 81 return port_attr->show(p, port_attr, buf); 82} 83 84static const struct sysfs_ops port_sysfs_ops = { 85 .show = port_attr_show 86}; 87 88static ssize_t state_show(struct ib_port *p, struct port_attribute *unused, 89 char *buf) 90{ 91 struct ib_port_attr attr; 92 ssize_t ret; 93 94 static const char *state_name[] = { 95 [IB_PORT_NOP] = "NOP", 96 [IB_PORT_DOWN] = "DOWN", 97 [IB_PORT_INIT] = "INIT", 98 [IB_PORT_ARMED] = "ARMED", 99 [IB_PORT_ACTIVE] = "ACTIVE", 100 [IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER" 101 }; 102 103 ret = ib_query_port(p->ibdev, p->port_num, &attr); 104 if (ret) 105 return ret; 106 107 return sprintf(buf, "%d: %s\n", attr.state, 108 attr.state < ARRAY_SIZE(state_name) ? 109 state_name[attr.state] : "UNKNOWN"); 110} 111 112static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused, 113 char *buf) 114{ 115 struct ib_port_attr attr; 116 ssize_t ret; 117 118 ret = ib_query_port(p->ibdev, p->port_num, &attr); 119 if (ret) 120 return ret; 121 122 return sprintf(buf, "0x%x\n", attr.lid); 123} 124 125static ssize_t lid_mask_count_show(struct ib_port *p, 126 struct port_attribute *unused, 127 char *buf) 128{ 129 struct ib_port_attr attr; 130 ssize_t ret; 131 132 ret = ib_query_port(p->ibdev, p->port_num, &attr); 133 if (ret) 134 return ret; 135 136 return sprintf(buf, "%d\n", attr.lmc); 137} 138 139static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused, 140 char *buf) 141{ 142 struct ib_port_attr attr; 143 ssize_t ret; 144 145 ret = ib_query_port(p->ibdev, p->port_num, &attr); 146 if (ret) 147 return ret; 148 149 return sprintf(buf, "0x%x\n", attr.sm_lid); 150} 151 152static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused, 153 char *buf) 154{ 155 struct ib_port_attr attr; 156 ssize_t ret; 157 158 ret = ib_query_port(p->ibdev, p->port_num, &attr); 159 if (ret) 160 return ret; 161 162 return sprintf(buf, "%d\n", attr.sm_sl); 163} 164 165static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused, 166 char *buf) 167{ 168 struct ib_port_attr attr; 169 ssize_t ret; 170 171 ret = ib_query_port(p->ibdev, p->port_num, &attr); 172 if (ret) 173 return ret; 174 175 return sprintf(buf, "0x%08x\n", attr.port_cap_flags); 176} 177 178static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, 179 char *buf) 180{ 181 struct ib_port_attr attr; 182 char *speed = ""; 183 int rate; 184 ssize_t ret; 185 186 ret = ib_query_port(p->ibdev, p->port_num, &attr); 187 if (ret) 188 return ret; 189 190 switch (attr.active_speed) { 191 case 2: speed = " DDR"; break; 192 case 4: speed = " QDR"; break; 193 } 194 195 rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed; 196 if (rate < 0) 197 return -EINVAL; 198 199 return sprintf(buf, "%d%s Gb/sec (%dX%s)\n", 200 rate / 10, rate % 10 ? ".5" : "", 201 ib_width_enum_to_int(attr.active_width), speed); 202} 203 204static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused, 205 char *buf) 206{ 207 struct ib_port_attr attr; 208 209 ssize_t ret; 210 211 ret = ib_query_port(p->ibdev, p->port_num, &attr); 212 if (ret) 213 return ret; 214 215 switch (attr.phys_state) { 216 case 1: return sprintf(buf, "1: Sleep\n"); 217 case 2: return sprintf(buf, "2: Polling\n"); 218 case 3: return sprintf(buf, "3: Disabled\n"); 219 case 4: return sprintf(buf, "4: PortConfigurationTraining\n"); 220 case 5: return sprintf(buf, "5: LinkUp\n"); 221 case 6: return sprintf(buf, "6: LinkErrorRecovery\n"); 222 case 7: return sprintf(buf, "7: Phy Test\n"); 223 default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state); 224 } 225} 226 227static ssize_t link_layer_show(struct ib_port *p, struct port_attribute *unused, 228 char *buf) 229{ 230 switch (rdma_port_get_link_layer(p->ibdev, p->port_num)) { 231 case IB_LINK_LAYER_INFINIBAND: 232 return sprintf(buf, "%s\n", "IB"); 233 case IB_LINK_LAYER_ETHERNET: 234 return sprintf(buf, "%s\n", "Ethernet"); 235 default: 236 return sprintf(buf, "%s\n", "Unknown"); 237 } 238} 239 240static PORT_ATTR_RO(state); 241static PORT_ATTR_RO(lid); 242static PORT_ATTR_RO(lid_mask_count); 243static PORT_ATTR_RO(sm_lid); 244static PORT_ATTR_RO(sm_sl); 245static PORT_ATTR_RO(cap_mask); 246static PORT_ATTR_RO(rate); 247static PORT_ATTR_RO(phys_state); 248static PORT_ATTR_RO(link_layer); 249 250static struct attribute *port_default_attrs[] = { 251 &port_attr_state.attr, 252 &port_attr_lid.attr, 253 &port_attr_lid_mask_count.attr, 254 &port_attr_sm_lid.attr, 255 &port_attr_sm_sl.attr, 256 &port_attr_cap_mask.attr, 257 &port_attr_rate.attr, 258 &port_attr_phys_state.attr, 259 &port_attr_link_layer.attr, 260 NULL 261}; 262 263static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr, 264 char *buf) 265{ 266 struct port_table_attribute *tab_attr = 267 container_of(attr, struct port_table_attribute, attr); 268 union ib_gid gid; 269 ssize_t ret; 270 u16 *raw; 271 272 ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid); 273 if (ret) 274 return ret; 275 276 raw = (u16 *)gid.raw; 277 return sprintf(buf, "%.4x:%.4x:%.4x:%.4x:%.4x:%.4x:%.4x:%.4x\n", 278 htons(raw[0]), htons(raw[1]), htons(raw[2]), htons(raw[3]), 279 htons(raw[4]), htons(raw[5]), htons(raw[6]), htons(raw[7])); 280} 281 282static ssize_t show_port_pkey(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 u16 pkey; 288 ssize_t ret; 289 290 ret = ib_query_pkey(p->ibdev, p->port_num, tab_attr->index, &pkey); 291 if (ret) 292 return ret; 293 294 return sprintf(buf, "0x%04x\n", pkey); 295} 296 297static ssize_t get_pma_counters(struct ib_port *p, struct port_attribute *attr, 298 char *buf, int c_ext) 299{ 300 struct port_table_attribute *tab_attr = 301 container_of(attr, struct port_table_attribute, attr); 302 int offset = tab_attr->index & 0xffff; 303 int width = (tab_attr->index >> 16) & 0xff; 304 struct ib_mad *in_mad = NULL; 305 struct ib_mad *out_mad = NULL; 306 ssize_t ret; 307 308 if (!p->ibdev->process_mad) 309 return -ENXIO; 310 311 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 312 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 313 if (!in_mad || !out_mad) { 314 ret = -ENOMEM; 315 goto out; 316 } 317 318 in_mad->mad_hdr.base_version = 1; 319 in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT; 320 in_mad->mad_hdr.class_version = 1; 321 in_mad->mad_hdr.method = IB_MGMT_METHOD_GET; 322 if (c_ext) 323 in_mad->mad_hdr.attr_id = IB_PMA_PORT_COUNTERS_EXT; 324 else 325 in_mad->mad_hdr.attr_id = IB_PMA_PORT_COUNTERS; 326 327 in_mad->data[41] = p->port_num; /* PortSelect field */ 328 329 if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY, 330 p->port_num, NULL, NULL, in_mad, out_mad) & 331 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) != 332 (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) { 333 ret = -EINVAL; 334 goto out; 335 } 336 337 switch (width) { 338 case 4: 339 ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >> 340 (4 - (offset % 8))) & 0xf); 341 break; 342 case 8: 343 ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]); 344 break; 345 case 16: 346 ret = sprintf(buf, "%u\n", 347 be16_to_cpup((__be16 *)(out_mad->data + 40 + offset / 8))); 348 break; 349 case 32: 350 ret = sprintf(buf, "%u\n", 351 be32_to_cpup((__be32 *)(out_mad->data + 40 + offset / 8))); 352 break; 353 case 64: 354 ret = sprintf(buf, "%llu\n", (unsigned long long) 355 be64_to_cpup((__be64 *)(out_mad->data + 40 + offset / 8))); 356 break; 357 default: 358 ret = 0; 359 } 360 361out: 362 kfree(in_mad); 363 kfree(out_mad); 364 365 return ret; 366} 367 368#define PORT_PMA_ATTR(_name, _counter, _width, _offset) \ 369struct port_table_attribute port_pma_attr_##_name = { \ 370 .attr = __ATTR(_name, S_IRUGO, show_pma_counter, NULL), \ 371 .index = (_offset) | ((_width) << 16) | ((_counter) << 24) \ 372} 373 374static ssize_t show_pma_counter(struct ib_port *p, struct port_attribute *attr, 375 char *buf) 376{ 377 return get_pma_counters(p, attr, buf, 0); 378} 379 380static PORT_PMA_ATTR(symbol_error , 0, 16, 32); 381static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48); 382static PORT_PMA_ATTR(link_downed , 2, 8, 56); 383static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64); 384static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80); 385static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96); 386static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112); 387static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128); 388static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136); 389static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152); 390static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156); 391static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176); 392static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192); 393static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224); 394static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256); 395static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288); 396 397static struct attribute *pma_attrs[] = { 398 &port_pma_attr_symbol_error.attr.attr, 399 &port_pma_attr_link_error_recovery.attr.attr, 400 &port_pma_attr_link_downed.attr.attr, 401 &port_pma_attr_port_rcv_errors.attr.attr, 402 &port_pma_attr_port_rcv_remote_physical_errors.attr.attr, 403 &port_pma_attr_port_rcv_switch_relay_errors.attr.attr, 404 &port_pma_attr_port_xmit_discards.attr.attr, 405 &port_pma_attr_port_xmit_constraint_errors.attr.attr, 406 &port_pma_attr_port_rcv_constraint_errors.attr.attr, 407 &port_pma_attr_local_link_integrity_errors.attr.attr, 408 &port_pma_attr_excessive_buffer_overrun_errors.attr.attr, 409 &port_pma_attr_VL15_dropped.attr.attr, 410 &port_pma_attr_port_xmit_data.attr.attr, 411 &port_pma_attr_port_rcv_data.attr.attr, 412 &port_pma_attr_port_xmit_packets.attr.attr, 413 &port_pma_attr_port_rcv_packets.attr.attr, 414 NULL 415}; 416 417static struct attribute_group pma_group = { 418 .name = "counters", 419 .attrs = pma_attrs 420}; 421 422#define PORT_PMA_ATTR_EXT(_name, _counter, _width, _offset) \ 423struct port_table_attribute port_pma_attr_ext_##_name = { \ 424 .attr = __ATTR(_name, S_IRUGO, show_pma_counter_ext, NULL), \ 425 .index = (_offset) | ((_width) << 16) | ((_counter) << 24) \ 426} 427 428static ssize_t show_pma_counter_ext(struct ib_port *p, 429 struct port_attribute *attr, char *buf) 430{ 431 return get_pma_counters(p, attr, buf, 1); 432} 433 434static PORT_PMA_ATTR_EXT(port_xmit_data_64 , 0, 64, 64); 435static PORT_PMA_ATTR_EXT(port_rcv_data_64 , 0, 64, 128); 436static PORT_PMA_ATTR_EXT(port_xmit_packets_64 , 0, 64, 192); 437static PORT_PMA_ATTR_EXT(port_rcv_packets_64 , 0, 64, 256); 438static PORT_PMA_ATTR_EXT(port_unicast_xmit_packets , 0, 64, 320); 439static PORT_PMA_ATTR_EXT(port_unicast_rcv_packets , 0, 64, 384); 440static PORT_PMA_ATTR_EXT(port_multicast_xmit_packets , 0, 64, 448); 441static PORT_PMA_ATTR_EXT(port_multicast_rcv_packets , 0, 64, 512); 442 443static struct attribute *pma_attrs_ext[] = { 444 &port_pma_attr_ext_port_xmit_data_64.attr.attr, 445 &port_pma_attr_ext_port_rcv_data_64.attr.attr, 446 &port_pma_attr_ext_port_xmit_packets_64.attr.attr, 447 &port_pma_attr_ext_port_rcv_packets_64.attr.attr, 448 &port_pma_attr_ext_port_unicast_xmit_packets.attr.attr, 449 &port_pma_attr_ext_port_unicast_rcv_packets.attr.attr, 450 &port_pma_attr_ext_port_multicast_xmit_packets.attr.attr, 451 &port_pma_attr_ext_port_multicast_rcv_packets.attr.attr, 452 NULL 453}; 454 455static struct attribute_group pma_ext_group = { 456 .name = "counters_ext", 457 .attrs = pma_attrs_ext 458}; 459 460static void ib_port_release(struct kobject *kobj) 461{ 462 struct ib_port *p = container_of(kobj, struct ib_port, kobj); 463 struct attribute *a; 464 int i; 465 466 for (i = 0; (a = p->gid_group.attrs[i]); ++i) 467 kfree(a); 468 469 kfree(p->gid_group.attrs); 470 471 for (i = 0; (a = p->pkey_group.attrs[i]); ++i) 472 kfree(a); 473 474 kfree(p->pkey_group.attrs); 475 476 kfree(p); 477} 478 479static struct kobj_type port_type = { 480 .release = ib_port_release, 481 .sysfs_ops = &port_sysfs_ops, 482 .default_attrs = port_default_attrs 483}; 484 485static void ib_device_release(struct device *device) 486{ 487 struct ib_device *dev = container_of(device, struct ib_device, dev); 488 489 kfree(dev); 490} 491 492#ifdef __linux__ 493/* BSD supports this through devfs(5) and devd(8). */ 494static int ib_device_uevent(struct device *device, 495 struct kobj_uevent_env *env) 496{ 497 struct ib_device *dev = container_of(device, struct ib_device, dev); 498 499 if (add_uevent_var(env, "NAME=%s", dev->name)) 500 return -ENOMEM; 501 502 /* 503 * It would be nice to pass the node GUID with the event... 504 */ 505 506 return 0; 507} 508#endif 509 510static struct attribute ** 511alloc_group_attrs(ssize_t (*show)(struct ib_port *, 512 struct port_attribute *, char *buf), 513 int len) 514{ 515 struct attribute **tab_attr; 516 struct port_table_attribute *element; 517 int i; 518 519 tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL); 520 if (!tab_attr) 521 return NULL; 522 523 for (i = 0; i < len; i++) { 524 element = kzalloc(sizeof(struct port_table_attribute), 525 GFP_KERNEL); 526 if (!element) 527 goto err; 528 529 if (snprintf(element->name, sizeof(element->name), 530 "%d", i) >= sizeof(element->name)) { 531 kfree(element); 532 goto err; 533 } 534 535 element->attr.attr.name = element->name; 536 element->attr.attr.mode = S_IRUGO; 537 element->attr.show = show; 538 element->index = i; 539 540 tab_attr[i] = &element->attr.attr; 541 } 542 543 return tab_attr; 544 545err: 546 while (--i >= 0) 547 kfree(tab_attr[i]); 548 kfree(tab_attr); 549 return NULL; 550} 551 552static int add_port(struct ib_device *device, int port_num, 553 int (*port_callback)(struct ib_device *, 554 u8, struct kobject *)) 555{ 556 struct ib_port *p; 557 struct ib_port_attr attr; 558 int i; 559 int ret; 560 561 ret = ib_query_port(device, port_num, &attr); 562 if (ret) 563 return ret; 564 565 p = kzalloc(sizeof *p, GFP_KERNEL); 566 if (!p) 567 return -ENOMEM; 568 569 p->ibdev = device; 570 p->port_num = port_num; 571 572 ret = kobject_init_and_add(&p->kobj, &port_type, 573 kobject_get(device->ports_parent), 574 "%d", port_num); 575 if (ret) 576 goto err_put; 577 578 ret = sysfs_create_group(&p->kobj, &pma_group); 579 if (ret) 580 goto err_put; 581 582 ret = sysfs_create_group(&p->kobj, &pma_ext_group); 583 if (ret) 584 goto err_remove_pma; 585 586 p->gid_group.name = "gids"; 587 p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len); 588 if (!p->gid_group.attrs) 589 goto err_remove_pma_ext; 590 591 ret = sysfs_create_group(&p->kobj, &p->gid_group); 592 if (ret) 593 goto err_free_gid; 594 595 p->pkey_group.name = "pkeys"; 596 p->pkey_group.attrs = alloc_group_attrs(show_port_pkey, 597 attr.pkey_tbl_len); 598 if (!p->pkey_group.attrs) 599 goto err_remove_gid; 600 601 ret = sysfs_create_group(&p->kobj, &p->pkey_group); 602 if (ret) 603 goto err_free_pkey; 604 605 if (port_callback) { 606 ret = port_callback(device, port_num, &p->kobj); 607 if (ret) 608 goto err_remove_pkey; 609 } 610 611 list_add_tail(&p->kobj.entry, &device->port_list); 612 613#ifdef __linux__ 614 kobject_uevent(&p->kobj, KOBJ_ADD); 615#endif 616 return 0; 617 618err_remove_pkey: 619 sysfs_remove_group(&p->kobj, &p->pkey_group); 620 621err_free_pkey: 622 for (i = 0; i < attr.pkey_tbl_len; ++i) 623 kfree(p->pkey_group.attrs[i]); 624 625 kfree(p->pkey_group.attrs); 626 627err_remove_gid: 628 sysfs_remove_group(&p->kobj, &p->gid_group); 629 630err_free_gid: 631 for (i = 0; i < attr.gid_tbl_len; ++i) 632 kfree(p->gid_group.attrs[i]); 633 634 kfree(p->gid_group.attrs); 635 636err_remove_pma_ext: 637 sysfs_remove_group(&p->kobj, &pma_ext_group); 638 639err_remove_pma: 640 sysfs_remove_group(&p->kobj, &pma_group); 641 642err_put: 643 kobject_put(device->ports_parent); 644 kfree(p); 645 return ret; 646} 647 648static ssize_t show_node_type(struct device *device, 649 struct device_attribute *attr, char *buf) 650{ 651 struct ib_device *dev = container_of(device, struct ib_device, dev); 652 653 switch (dev->node_type) { 654 case RDMA_NODE_IB_CA: return sprintf(buf, "%d: CA\n", dev->node_type); 655 case RDMA_NODE_RNIC: return sprintf(buf, "%d: RNIC\n", dev->node_type); 656 case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); 657 case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); 658 default: return sprintf(buf, "%d: <unknown>\n", dev->node_type); 659 } 660} 661 662static ssize_t show_sys_image_guid(struct device *device, 663 struct device_attribute *dev_attr, char *buf) 664{ 665 struct ib_device *dev = container_of(device, struct ib_device, dev); 666 struct ib_device_attr attr; 667 ssize_t ret; 668 669 ret = ib_query_device(dev, &attr); 670 if (ret) 671 return ret; 672 673 return sprintf(buf, "%04x:%04x:%04x:%04x\n", 674 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[0]), 675 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[1]), 676 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[2]), 677 be16_to_cpu(((__be16 *) &attr.sys_image_guid)[3])); 678} 679 680static ssize_t show_node_guid(struct device *device, 681 struct device_attribute *attr, char *buf) 682{ 683 struct ib_device *dev = container_of(device, struct ib_device, dev); 684 685 return sprintf(buf, "%04x:%04x:%04x:%04x\n", 686 be16_to_cpu(((__be16 *) &dev->node_guid)[0]), 687 be16_to_cpu(((__be16 *) &dev->node_guid)[1]), 688 be16_to_cpu(((__be16 *) &dev->node_guid)[2]), 689 be16_to_cpu(((__be16 *) &dev->node_guid)[3])); 690} 691 692static ssize_t show_node_desc(struct device *device, 693 struct device_attribute *attr, char *buf) 694{ 695 struct ib_device *dev = container_of(device, struct ib_device, dev); 696 697 return sprintf(buf, "%.64s\n", dev->node_desc); 698} 699 700static ssize_t set_node_desc(struct device *device, 701 struct device_attribute *attr, 702 const char *buf, size_t count) 703{ 704 struct ib_device *dev = container_of(device, struct ib_device, dev); 705 struct ib_device_modify desc = {}; 706 int ret; 707 708 if (!dev->modify_device) 709 return -EIO; 710 711 memcpy(desc.node_desc, buf, min_t(int, count, 64)); 712 ret = ib_modify_device(dev, IB_DEVICE_MODIFY_NODE_DESC, &desc); 713 if (ret) 714 return ret; 715 716 return count; 717} 718 719static DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL); 720static DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL); 721static DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL); 722static DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, set_node_desc); 723 724static struct device_attribute *ib_class_attributes[] = { 725 &dev_attr_node_type, 726 &dev_attr_sys_image_guid, 727 &dev_attr_node_guid, 728 &dev_attr_node_desc 729}; 730 731static struct class ib_class = { 732 .name = "infiniband", 733 .dev_release = ib_device_release, 734#ifdef __linux__ 735 .dev_uevent = ib_device_uevent, 736#endif 737}; 738 739/* Show a given an attribute in the statistics group */ 740static ssize_t show_protocol_stat(const struct device *device, 741 struct device_attribute *attr, char *buf, 742 unsigned offset) 743{ 744 struct ib_device *dev = container_of(__DECONST(struct device *, device), struct ib_device, dev); 745 union rdma_protocol_stats stats; 746 ssize_t ret; 747 748 ret = dev->get_protocol_stats(dev, &stats); 749 if (ret) 750 return ret; 751 752 return sprintf(buf, "%llu\n", 753 (unsigned long long) ((u64 *) &stats)[offset]); 754} 755 756/* generate a read-only iwarp statistics attribute */ 757#define IW_STATS_ENTRY(name) \ 758static ssize_t show_##name(struct device *device, \ 759 struct device_attribute *attr, char *buf) \ 760{ \ 761 return show_protocol_stat(device, attr, buf, \ 762 offsetof(struct iw_protocol_stats, name) / \ 763 sizeof (u64)); \ 764} \ 765static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) 766 767IW_STATS_ENTRY(ipInReceives); 768IW_STATS_ENTRY(ipInHdrErrors); 769IW_STATS_ENTRY(ipInTooBigErrors); 770IW_STATS_ENTRY(ipInNoRoutes); 771IW_STATS_ENTRY(ipInAddrErrors); 772IW_STATS_ENTRY(ipInUnknownProtos); 773IW_STATS_ENTRY(ipInTruncatedPkts); 774IW_STATS_ENTRY(ipInDiscards); 775IW_STATS_ENTRY(ipInDelivers); 776IW_STATS_ENTRY(ipOutForwDatagrams); 777IW_STATS_ENTRY(ipOutRequests); 778IW_STATS_ENTRY(ipOutDiscards); 779IW_STATS_ENTRY(ipOutNoRoutes); 780IW_STATS_ENTRY(ipReasmTimeout); 781IW_STATS_ENTRY(ipReasmReqds); 782IW_STATS_ENTRY(ipReasmOKs); 783IW_STATS_ENTRY(ipReasmFails); 784IW_STATS_ENTRY(ipFragOKs); 785IW_STATS_ENTRY(ipFragFails); 786IW_STATS_ENTRY(ipFragCreates); 787IW_STATS_ENTRY(ipInMcastPkts); 788IW_STATS_ENTRY(ipOutMcastPkts); 789IW_STATS_ENTRY(ipInBcastPkts); 790IW_STATS_ENTRY(ipOutBcastPkts); 791IW_STATS_ENTRY(tcpRtoAlgorithm); 792IW_STATS_ENTRY(tcpRtoMin); 793IW_STATS_ENTRY(tcpRtoMax); 794IW_STATS_ENTRY(tcpMaxConn); 795IW_STATS_ENTRY(tcpActiveOpens); 796IW_STATS_ENTRY(tcpPassiveOpens); 797IW_STATS_ENTRY(tcpAttemptFails); 798IW_STATS_ENTRY(tcpEstabResets); 799IW_STATS_ENTRY(tcpCurrEstab); 800IW_STATS_ENTRY(tcpInSegs); 801IW_STATS_ENTRY(tcpOutSegs); 802IW_STATS_ENTRY(tcpRetransSegs); 803IW_STATS_ENTRY(tcpInErrs); 804IW_STATS_ENTRY(tcpOutRsts); 805 806static struct attribute *iw_proto_stats_attrs[] = { 807 &dev_attr_ipInReceives.attr, 808 &dev_attr_ipInHdrErrors.attr, 809 &dev_attr_ipInTooBigErrors.attr, 810 &dev_attr_ipInNoRoutes.attr, 811 &dev_attr_ipInAddrErrors.attr, 812 &dev_attr_ipInUnknownProtos.attr, 813 &dev_attr_ipInTruncatedPkts.attr, 814 &dev_attr_ipInDiscards.attr, 815 &dev_attr_ipInDelivers.attr, 816 &dev_attr_ipOutForwDatagrams.attr, 817 &dev_attr_ipOutRequests.attr, 818 &dev_attr_ipOutDiscards.attr, 819 &dev_attr_ipOutNoRoutes.attr, 820 &dev_attr_ipReasmTimeout.attr, 821 &dev_attr_ipReasmReqds.attr, 822 &dev_attr_ipReasmOKs.attr, 823 &dev_attr_ipReasmFails.attr, 824 &dev_attr_ipFragOKs.attr, 825 &dev_attr_ipFragFails.attr, 826 &dev_attr_ipFragCreates.attr, 827 &dev_attr_ipInMcastPkts.attr, 828 &dev_attr_ipOutMcastPkts.attr, 829 &dev_attr_ipInBcastPkts.attr, 830 &dev_attr_ipOutBcastPkts.attr, 831 &dev_attr_tcpRtoAlgorithm.attr, 832 &dev_attr_tcpRtoMin.attr, 833 &dev_attr_tcpRtoMax.attr, 834 &dev_attr_tcpMaxConn.attr, 835 &dev_attr_tcpActiveOpens.attr, 836 &dev_attr_tcpPassiveOpens.attr, 837 &dev_attr_tcpAttemptFails.attr, 838 &dev_attr_tcpEstabResets.attr, 839 &dev_attr_tcpCurrEstab.attr, 840 &dev_attr_tcpInSegs.attr, 841 &dev_attr_tcpOutSegs.attr, 842 &dev_attr_tcpRetransSegs.attr, 843 &dev_attr_tcpInErrs.attr, 844 &dev_attr_tcpOutRsts.attr, 845 NULL 846}; 847 848static struct attribute_group iw_stats_group = { 849 .name = "proto_stats", 850 .attrs = iw_proto_stats_attrs, 851}; 852 853int ib_device_register_sysfs(struct ib_device *device, 854 int (*port_callback)(struct ib_device *, u8, struct kobject *)) 855{ 856 struct device *class_dev = &device->dev; 857 int ret; 858 int i; 859 860 class_dev->class = &ib_class; 861 class_dev->parent = device->dma_device; 862 dev_set_name(class_dev, device->name); 863 dev_set_drvdata(class_dev, device); 864 865 INIT_LIST_HEAD(&device->port_list); 866 867 ret = device_register(class_dev); 868 if (ret) 869 goto err; 870 871 for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) { 872 ret = device_create_file(class_dev, ib_class_attributes[i]); 873 if (ret) 874 goto err_unregister; 875 } 876 877 device->ports_parent = kobject_create_and_add("ports", 878 kobject_get(&class_dev->kobj)); 879 if (!device->ports_parent) { 880 ret = -ENOMEM; 881 goto err_put; 882 } 883 884 if (device->node_type == RDMA_NODE_IB_SWITCH) { 885 ret = add_port(device, 0, port_callback); 886 if (ret) 887 goto err_put; 888 } else { 889 for (i = 1; i <= device->phys_port_cnt; ++i) { 890 ret = add_port(device, i, port_callback); 891 if (ret) 892 goto err_put; 893 } 894 } 895 896 if (device->node_type == RDMA_NODE_RNIC && device->get_protocol_stats) { 897 ret = sysfs_create_group(&class_dev->kobj, &iw_stats_group); 898 if (ret) 899 goto err_put; 900 } 901 902 return 0; 903 904err_put: 905 { 906 struct kobject *p, *t; 907 struct ib_port *port; 908 909 list_for_each_entry_safe(p, t, &device->port_list, entry) { 910 list_del(&p->entry); 911 port = container_of(p, struct ib_port, kobj); 912 sysfs_remove_group(p, &pma_group); 913 sysfs_remove_group(p, &port->pkey_group); 914 sysfs_remove_group(p, &port->gid_group); 915 kobject_put(p); 916 } 917 } 918 919 kobject_put(&class_dev->kobj); 920 921err_unregister: 922 device_unregister(class_dev); 923 924err: 925 return ret; 926} 927 928void ib_device_unregister_sysfs(struct ib_device *device) 929{ 930 struct kobject *p, *t; 931 struct ib_port *port; 932 int i; 933 934 /* Hold kobject until ib_dealloc_device() */ 935 kobject_get(&device->dev.kobj); 936 937 for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) { 938 device_remove_file(&device->dev, ib_class_attributes[i]); 939 } 940 941 list_for_each_entry_safe(p, t, &device->port_list, entry) { 942 list_del(&p->entry); 943 port = container_of(p, struct ib_port, kobj); 944 sysfs_remove_group(p, &pma_group); 945 sysfs_remove_group(p, &port->pkey_group); 946 sysfs_remove_group(p, &port->gid_group); 947 kobject_put(p); 948 } 949 950 kobject_put(device->ports_parent); 951 device_unregister(&device->dev); 952} 953 954int ib_sysfs_setup(void) 955{ 956 return class_register(&ib_class); 957} 958 959void ib_sysfs_cleanup(void) 960{ 961 class_unregister(&ib_class); 962} 963 964/*int ib_sysfs_create_port_files(struct ib_device *device, 965 int (*create)(struct ib_device *dev, u8 port_num, 966 struct kobject *kobj)) 967{ 968 struct kobject *p; 969 struct ib_port *port; 970 int ret = 0; 971 972 list_for_each_entry(p, &device->port_list, entry) { 973 port = container_of(p, struct ib_port, kobj); 974 ret = create(device, port->port_num, &port->kobj); 975 if (ret) 976 break; 977 } 978 979 return ret; 980} 981EXPORT_SYMBOL(ib_sysfs_create_port_files);*/ 982