Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. |
Roland Dreier | 2a1d9b7 | 2005-08-10 23:03:10 -0700 | [diff] [blame] | 3 | * Copyright (c) 2005 Mellanox Technologies Ltd. All rights reserved. |
| 4 | * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * |
| 6 | * This software is available to you under a choice of one of two |
| 7 | * licenses. You may choose to be licensed under the terms of the GNU |
| 8 | * General Public License (GPL) Version 2, available from the file |
| 9 | * COPYING in the main directory of this source tree, or the |
| 10 | * OpenIB.org BSD license below: |
| 11 | * |
| 12 | * Redistribution and use in source and binary forms, with or |
| 13 | * without modification, are permitted provided that the following |
| 14 | * conditions are met: |
| 15 | * |
| 16 | * - Redistributions of source code must retain the above |
| 17 | * copyright notice, this list of conditions and the following |
| 18 | * disclaimer. |
| 19 | * |
| 20 | * - Redistributions in binary form must reproduce the above |
| 21 | * copyright notice, this list of conditions and the following |
| 22 | * disclaimer in the documentation and/or other materials |
| 23 | * provided with the distribution. |
| 24 | * |
| 25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 26 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 32 | * SOFTWARE. |
| 33 | * |
| 34 | * $Id: sysfs.c 1349 2004-12-16 21:09:43Z roland $ |
| 35 | */ |
| 36 | |
| 37 | #include "core_priv.h" |
| 38 | |
Roland Dreier | a4d61e8 | 2005-08-25 13:40:04 -0700 | [diff] [blame^] | 39 | #include <rdma/ib_mad.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | |
| 41 | struct ib_port { |
| 42 | struct kobject kobj; |
| 43 | struct ib_device *ibdev; |
| 44 | struct attribute_group gid_group; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | struct attribute_group pkey_group; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | u8 port_num; |
| 47 | }; |
| 48 | |
| 49 | struct port_attribute { |
| 50 | struct attribute attr; |
| 51 | ssize_t (*show)(struct ib_port *, struct port_attribute *, char *buf); |
| 52 | ssize_t (*store)(struct ib_port *, struct port_attribute *, |
| 53 | const char *buf, size_t count); |
| 54 | }; |
| 55 | |
| 56 | #define PORT_ATTR(_name, _mode, _show, _store) \ |
| 57 | struct port_attribute port_attr_##_name = __ATTR(_name, _mode, _show, _store) |
| 58 | |
| 59 | #define PORT_ATTR_RO(_name) \ |
| 60 | struct port_attribute port_attr_##_name = __ATTR_RO(_name) |
| 61 | |
| 62 | struct port_table_attribute { |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 63 | struct port_attribute attr; |
| 64 | char name[8]; |
| 65 | int index; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | }; |
| 67 | |
| 68 | static ssize_t port_attr_show(struct kobject *kobj, |
| 69 | struct attribute *attr, char *buf) |
| 70 | { |
| 71 | struct port_attribute *port_attr = |
| 72 | container_of(attr, struct port_attribute, attr); |
| 73 | struct ib_port *p = container_of(kobj, struct ib_port, kobj); |
| 74 | |
| 75 | if (!port_attr->show) |
Dmitry Torokhov | 70f2817 | 2005-04-29 01:27:34 -0500 | [diff] [blame] | 76 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | |
| 78 | return port_attr->show(p, port_attr, buf); |
| 79 | } |
| 80 | |
| 81 | static struct sysfs_ops port_sysfs_ops = { |
| 82 | .show = port_attr_show |
| 83 | }; |
| 84 | |
| 85 | static ssize_t state_show(struct ib_port *p, struct port_attribute *unused, |
| 86 | char *buf) |
| 87 | { |
| 88 | struct ib_port_attr attr; |
| 89 | ssize_t ret; |
| 90 | |
| 91 | static const char *state_name[] = { |
| 92 | [IB_PORT_NOP] = "NOP", |
| 93 | [IB_PORT_DOWN] = "DOWN", |
| 94 | [IB_PORT_INIT] = "INIT", |
| 95 | [IB_PORT_ARMED] = "ARMED", |
| 96 | [IB_PORT_ACTIVE] = "ACTIVE", |
| 97 | [IB_PORT_ACTIVE_DEFER] = "ACTIVE_DEFER" |
| 98 | }; |
| 99 | |
| 100 | ret = ib_query_port(p->ibdev, p->port_num, &attr); |
| 101 | if (ret) |
| 102 | return ret; |
| 103 | |
| 104 | return sprintf(buf, "%d: %s\n", attr.state, |
| 105 | attr.state >= 0 && attr.state <= ARRAY_SIZE(state_name) ? |
| 106 | state_name[attr.state] : "UNKNOWN"); |
| 107 | } |
| 108 | |
| 109 | static ssize_t lid_show(struct ib_port *p, struct port_attribute *unused, |
| 110 | char *buf) |
| 111 | { |
| 112 | struct ib_port_attr attr; |
| 113 | ssize_t ret; |
| 114 | |
| 115 | ret = ib_query_port(p->ibdev, p->port_num, &attr); |
| 116 | if (ret) |
| 117 | return ret; |
| 118 | |
| 119 | return sprintf(buf, "0x%x\n", attr.lid); |
| 120 | } |
| 121 | |
| 122 | static ssize_t lid_mask_count_show(struct ib_port *p, |
| 123 | struct port_attribute *unused, |
| 124 | char *buf) |
| 125 | { |
| 126 | struct ib_port_attr attr; |
| 127 | ssize_t ret; |
| 128 | |
| 129 | ret = ib_query_port(p->ibdev, p->port_num, &attr); |
| 130 | if (ret) |
| 131 | return ret; |
| 132 | |
| 133 | return sprintf(buf, "%d\n", attr.lmc); |
| 134 | } |
| 135 | |
| 136 | static ssize_t sm_lid_show(struct ib_port *p, struct port_attribute *unused, |
| 137 | char *buf) |
| 138 | { |
| 139 | struct ib_port_attr attr; |
| 140 | ssize_t ret; |
| 141 | |
| 142 | ret = ib_query_port(p->ibdev, p->port_num, &attr); |
| 143 | if (ret) |
| 144 | return ret; |
| 145 | |
| 146 | return sprintf(buf, "0x%x\n", attr.sm_lid); |
| 147 | } |
| 148 | |
| 149 | static ssize_t sm_sl_show(struct ib_port *p, struct port_attribute *unused, |
| 150 | char *buf) |
| 151 | { |
| 152 | struct ib_port_attr attr; |
| 153 | ssize_t ret; |
| 154 | |
| 155 | ret = ib_query_port(p->ibdev, p->port_num, &attr); |
| 156 | if (ret) |
| 157 | return ret; |
| 158 | |
| 159 | return sprintf(buf, "%d\n", attr.sm_sl); |
| 160 | } |
| 161 | |
| 162 | static ssize_t cap_mask_show(struct ib_port *p, struct port_attribute *unused, |
| 163 | char *buf) |
| 164 | { |
| 165 | struct ib_port_attr attr; |
| 166 | ssize_t ret; |
| 167 | |
| 168 | ret = ib_query_port(p->ibdev, p->port_num, &attr); |
| 169 | if (ret) |
| 170 | return ret; |
| 171 | |
| 172 | return sprintf(buf, "0x%08x\n", attr.port_cap_flags); |
| 173 | } |
| 174 | |
| 175 | static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, |
| 176 | char *buf) |
| 177 | { |
| 178 | struct ib_port_attr attr; |
| 179 | char *speed = ""; |
| 180 | int rate; |
| 181 | ssize_t ret; |
| 182 | |
| 183 | ret = ib_query_port(p->ibdev, p->port_num, &attr); |
| 184 | if (ret) |
| 185 | return ret; |
| 186 | |
| 187 | switch (attr.active_speed) { |
| 188 | case 2: speed = " DDR"; break; |
| 189 | case 4: speed = " QDR"; break; |
| 190 | } |
| 191 | |
| 192 | rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed; |
| 193 | if (rate < 0) |
| 194 | return -EINVAL; |
| 195 | |
| 196 | return sprintf(buf, "%d%s Gb/sec (%dX%s)\n", |
| 197 | rate / 10, rate % 10 ? ".5" : "", |
| 198 | ib_width_enum_to_int(attr.active_width), speed); |
| 199 | } |
| 200 | |
| 201 | static ssize_t phys_state_show(struct ib_port *p, struct port_attribute *unused, |
| 202 | char *buf) |
| 203 | { |
| 204 | struct ib_port_attr attr; |
| 205 | |
| 206 | ssize_t ret; |
| 207 | |
| 208 | ret = ib_query_port(p->ibdev, p->port_num, &attr); |
| 209 | if (ret) |
| 210 | return ret; |
| 211 | |
| 212 | switch (attr.phys_state) { |
| 213 | case 1: return sprintf(buf, "1: Sleep\n"); |
| 214 | case 2: return sprintf(buf, "2: Polling\n"); |
| 215 | case 3: return sprintf(buf, "3: Disabled\n"); |
| 216 | case 4: return sprintf(buf, "4: PortConfigurationTraining\n"); |
| 217 | case 5: return sprintf(buf, "5: LinkUp\n"); |
| 218 | case 6: return sprintf(buf, "6: LinkErrorRecovery\n"); |
| 219 | case 7: return sprintf(buf, "7: Phy Test\n"); |
| 220 | default: return sprintf(buf, "%d: <unknown>\n", attr.phys_state); |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | static PORT_ATTR_RO(state); |
| 225 | static PORT_ATTR_RO(lid); |
| 226 | static PORT_ATTR_RO(lid_mask_count); |
| 227 | static PORT_ATTR_RO(sm_lid); |
| 228 | static PORT_ATTR_RO(sm_sl); |
| 229 | static PORT_ATTR_RO(cap_mask); |
| 230 | static PORT_ATTR_RO(rate); |
| 231 | static PORT_ATTR_RO(phys_state); |
| 232 | |
| 233 | static struct attribute *port_default_attrs[] = { |
| 234 | &port_attr_state.attr, |
| 235 | &port_attr_lid.attr, |
| 236 | &port_attr_lid_mask_count.attr, |
| 237 | &port_attr_sm_lid.attr, |
| 238 | &port_attr_sm_sl.attr, |
| 239 | &port_attr_cap_mask.attr, |
| 240 | &port_attr_rate.attr, |
| 241 | &port_attr_phys_state.attr, |
| 242 | NULL |
| 243 | }; |
| 244 | |
| 245 | static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr, |
| 246 | char *buf) |
| 247 | { |
| 248 | struct port_table_attribute *tab_attr = |
| 249 | container_of(attr, struct port_table_attribute, attr); |
| 250 | union ib_gid gid; |
| 251 | ssize_t ret; |
| 252 | |
| 253 | ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid); |
| 254 | if (ret) |
| 255 | return ret; |
| 256 | |
| 257 | return sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n", |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 258 | be16_to_cpu(((__be16 *) gid.raw)[0]), |
| 259 | be16_to_cpu(((__be16 *) gid.raw)[1]), |
| 260 | be16_to_cpu(((__be16 *) gid.raw)[2]), |
| 261 | be16_to_cpu(((__be16 *) gid.raw)[3]), |
| 262 | be16_to_cpu(((__be16 *) gid.raw)[4]), |
| 263 | be16_to_cpu(((__be16 *) gid.raw)[5]), |
| 264 | be16_to_cpu(((__be16 *) gid.raw)[6]), |
| 265 | be16_to_cpu(((__be16 *) gid.raw)[7])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 = kmalloc(sizeof *in_mad, GFP_KERNEL); |
| 304 | out_mad = kmalloc(sizeof *in_mad, GFP_KERNEL); |
| 305 | if (!in_mad || !out_mad) { |
| 306 | ret = -ENOMEM; |
| 307 | goto out; |
| 308 | } |
| 309 | |
| 310 | memset(in_mad, 0, sizeof *in_mad); |
| 311 | in_mad->mad_hdr.base_version = 1; |
| 312 | in_mad->mad_hdr.mgmt_class = IB_MGMT_CLASS_PERF_MGMT; |
| 313 | in_mad->mad_hdr.class_version = 1; |
| 314 | in_mad->mad_hdr.method = IB_MGMT_METHOD_GET; |
| 315 | in_mad->mad_hdr.attr_id = cpu_to_be16(0x12); /* PortCounters */ |
| 316 | |
| 317 | in_mad->data[41] = p->port_num; /* PortSelect field */ |
| 318 | |
| 319 | if ((p->ibdev->process_mad(p->ibdev, IB_MAD_IGNORE_MKEY, |
| 320 | p->port_num, NULL, NULL, in_mad, out_mad) & |
| 321 | (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) != |
| 322 | (IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY)) { |
| 323 | ret = -EINVAL; |
| 324 | goto out; |
| 325 | } |
| 326 | |
| 327 | switch (width) { |
| 328 | case 4: |
| 329 | ret = sprintf(buf, "%u\n", (out_mad->data[40 + offset / 8] >> |
| 330 | (offset % 4)) & 0xf); |
| 331 | break; |
| 332 | case 8: |
| 333 | ret = sprintf(buf, "%u\n", out_mad->data[40 + offset / 8]); |
| 334 | break; |
| 335 | case 16: |
| 336 | ret = sprintf(buf, "%u\n", |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 337 | be16_to_cpup((__be16 *)(out_mad->data + 40 + offset / 8))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | break; |
| 339 | case 32: |
| 340 | ret = sprintf(buf, "%u\n", |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 341 | be32_to_cpup((__be32 *)(out_mad->data + 40 + offset / 8))); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | break; |
| 343 | default: |
| 344 | ret = 0; |
| 345 | } |
| 346 | |
| 347 | out: |
| 348 | kfree(in_mad); |
| 349 | kfree(out_mad); |
| 350 | |
| 351 | return ret; |
| 352 | } |
| 353 | |
| 354 | static PORT_PMA_ATTR(symbol_error , 0, 16, 32); |
| 355 | static PORT_PMA_ATTR(link_error_recovery , 1, 8, 48); |
| 356 | static PORT_PMA_ATTR(link_downed , 2, 8, 56); |
| 357 | static PORT_PMA_ATTR(port_rcv_errors , 3, 16, 64); |
| 358 | static PORT_PMA_ATTR(port_rcv_remote_physical_errors, 4, 16, 80); |
| 359 | static PORT_PMA_ATTR(port_rcv_switch_relay_errors , 5, 16, 96); |
| 360 | static PORT_PMA_ATTR(port_xmit_discards , 6, 16, 112); |
| 361 | static PORT_PMA_ATTR(port_xmit_constraint_errors , 7, 8, 128); |
| 362 | static PORT_PMA_ATTR(port_rcv_constraint_errors , 8, 8, 136); |
| 363 | static PORT_PMA_ATTR(local_link_integrity_errors , 9, 4, 152); |
| 364 | static PORT_PMA_ATTR(excessive_buffer_overrun_errors, 10, 4, 156); |
| 365 | static PORT_PMA_ATTR(VL15_dropped , 11, 16, 176); |
| 366 | static PORT_PMA_ATTR(port_xmit_data , 12, 32, 192); |
| 367 | static PORT_PMA_ATTR(port_rcv_data , 13, 32, 224); |
| 368 | static PORT_PMA_ATTR(port_xmit_packets , 14, 32, 256); |
| 369 | static PORT_PMA_ATTR(port_rcv_packets , 15, 32, 288); |
| 370 | |
| 371 | static struct attribute *pma_attrs[] = { |
| 372 | &port_pma_attr_symbol_error.attr.attr, |
| 373 | &port_pma_attr_link_error_recovery.attr.attr, |
| 374 | &port_pma_attr_link_downed.attr.attr, |
| 375 | &port_pma_attr_port_rcv_errors.attr.attr, |
| 376 | &port_pma_attr_port_rcv_remote_physical_errors.attr.attr, |
| 377 | &port_pma_attr_port_rcv_switch_relay_errors.attr.attr, |
| 378 | &port_pma_attr_port_xmit_discards.attr.attr, |
| 379 | &port_pma_attr_port_xmit_constraint_errors.attr.attr, |
| 380 | &port_pma_attr_port_rcv_constraint_errors.attr.attr, |
| 381 | &port_pma_attr_local_link_integrity_errors.attr.attr, |
| 382 | &port_pma_attr_excessive_buffer_overrun_errors.attr.attr, |
| 383 | &port_pma_attr_VL15_dropped.attr.attr, |
| 384 | &port_pma_attr_port_xmit_data.attr.attr, |
| 385 | &port_pma_attr_port_rcv_data.attr.attr, |
| 386 | &port_pma_attr_port_xmit_packets.attr.attr, |
| 387 | &port_pma_attr_port_rcv_packets.attr.attr, |
| 388 | NULL |
| 389 | }; |
| 390 | |
| 391 | static struct attribute_group pma_group = { |
| 392 | .name = "counters", |
| 393 | .attrs = pma_attrs |
| 394 | }; |
| 395 | |
| 396 | static void ib_port_release(struct kobject *kobj) |
| 397 | { |
| 398 | struct ib_port *p = container_of(kobj, struct ib_port, kobj); |
| 399 | struct attribute *a; |
| 400 | int i; |
| 401 | |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 402 | for (i = 0; (a = p->gid_group.attrs[i]); ++i) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | kfree(a); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 405 | kfree(p->gid_group.attrs); |
| 406 | |
| 407 | for (i = 0; (a = p->pkey_group.attrs[i]); ++i) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | kfree(a); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 410 | kfree(p->pkey_group.attrs); |
| 411 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | kfree(p); |
| 413 | } |
| 414 | |
| 415 | static struct kobj_type port_type = { |
| 416 | .release = ib_port_release, |
| 417 | .sysfs_ops = &port_sysfs_ops, |
| 418 | .default_attrs = port_default_attrs |
| 419 | }; |
| 420 | |
| 421 | static void ib_device_release(struct class_device *cdev) |
| 422 | { |
| 423 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); |
| 424 | |
| 425 | kfree(dev); |
| 426 | } |
| 427 | |
| 428 | static int ib_device_hotplug(struct class_device *cdev, char **envp, |
| 429 | int num_envp, char *buf, int size) |
| 430 | { |
| 431 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); |
| 432 | int i = 0, len = 0; |
| 433 | |
| 434 | if (add_hotplug_env_var(envp, num_envp, &i, buf, size, &len, |
| 435 | "NAME=%s", dev->name)) |
| 436 | return -ENOMEM; |
| 437 | |
| 438 | /* |
| 439 | * It might be nice to pass the node GUID to hotplug, but |
| 440 | * right now the only way to get it is to query the device |
| 441 | * provider, and this can crash during device removal because |
| 442 | * we are will be running after driver removal has started. |
| 443 | * We could add a node_guid field to struct ib_device, or we |
| 444 | * could just let the hotplug script read the node GUID from |
| 445 | * sysfs when devices are added. |
| 446 | */ |
| 447 | |
| 448 | envp[i] = NULL; |
| 449 | return 0; |
| 450 | } |
| 451 | |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 452 | static struct attribute ** |
| 453 | alloc_group_attrs(ssize_t (*show)(struct ib_port *, |
| 454 | struct port_attribute *, char *buf), |
| 455 | int len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | { |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 457 | struct attribute **tab_attr; |
| 458 | struct port_table_attribute *element; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 461 | tab_attr = kcalloc(1 + len, sizeof(struct attribute *), GFP_KERNEL); |
| 462 | if (!tab_attr) |
| 463 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 465 | for (i = 0; i < len; i++) { |
| 466 | element = kcalloc(1, sizeof(struct port_table_attribute), |
| 467 | GFP_KERNEL); |
| 468 | if (!element) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | goto err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 471 | if (snprintf(element->name, sizeof(element->name), |
| 472 | "%d", i) >= sizeof(element->name)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | goto err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 475 | element->attr.attr.name = element->name; |
| 476 | element->attr.attr.mode = S_IRUGO; |
| 477 | element->attr.attr.owner = THIS_MODULE; |
| 478 | element->attr.show = show; |
| 479 | element->index = i; |
| 480 | |
| 481 | tab_attr[i] = &element->attr.attr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | } |
| 483 | |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 484 | return tab_attr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | |
| 486 | err: |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 487 | while (--i >= 0) |
| 488 | kfree(tab_attr[i]); |
| 489 | kfree(tab_attr); |
| 490 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | } |
| 492 | |
| 493 | static int add_port(struct ib_device *device, int port_num) |
| 494 | { |
| 495 | struct ib_port *p; |
| 496 | struct ib_port_attr attr; |
| 497 | int i; |
| 498 | int ret; |
| 499 | |
| 500 | ret = ib_query_port(device, port_num, &attr); |
| 501 | if (ret) |
| 502 | return ret; |
| 503 | |
| 504 | p = kmalloc(sizeof *p, GFP_KERNEL); |
| 505 | if (!p) |
| 506 | return -ENOMEM; |
| 507 | memset(p, 0, sizeof *p); |
| 508 | |
| 509 | p->ibdev = device; |
| 510 | p->port_num = port_num; |
| 511 | p->kobj.ktype = &port_type; |
| 512 | |
| 513 | p->kobj.parent = kobject_get(&device->ports_parent); |
| 514 | if (!p->kobj.parent) { |
| 515 | ret = -EBUSY; |
| 516 | goto err; |
| 517 | } |
| 518 | |
| 519 | ret = kobject_set_name(&p->kobj, "%d", port_num); |
| 520 | if (ret) |
| 521 | goto err_put; |
| 522 | |
| 523 | ret = kobject_register(&p->kobj); |
| 524 | if (ret) |
| 525 | goto err_put; |
| 526 | |
| 527 | ret = sysfs_create_group(&p->kobj, &pma_group); |
| 528 | if (ret) |
| 529 | goto err_put; |
| 530 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | p->gid_group.name = "gids"; |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 532 | p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len); |
| 533 | if (!p->gid_group.attrs) |
| 534 | goto err_remove_pma; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | |
| 536 | ret = sysfs_create_group(&p->kobj, &p->gid_group); |
| 537 | if (ret) |
| 538 | goto err_free_gid; |
| 539 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | p->pkey_group.name = "pkeys"; |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 541 | p->pkey_group.attrs = alloc_group_attrs(show_port_pkey, |
| 542 | attr.pkey_tbl_len); |
| 543 | if (!p->pkey_group.attrs) |
| 544 | goto err_remove_gid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | |
| 546 | ret = sysfs_create_group(&p->kobj, &p->pkey_group); |
| 547 | if (ret) |
| 548 | goto err_free_pkey; |
| 549 | |
| 550 | list_add_tail(&p->kobj.entry, &device->port_list); |
| 551 | |
| 552 | return 0; |
| 553 | |
| 554 | err_free_pkey: |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 555 | for (i = 0; i < attr.pkey_tbl_len; ++i) |
| 556 | kfree(p->pkey_group.attrs[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 558 | kfree(p->pkey_group.attrs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | |
| 560 | err_remove_gid: |
| 561 | sysfs_remove_group(&p->kobj, &p->gid_group); |
| 562 | |
| 563 | err_free_gid: |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 564 | for (i = 0; i < attr.gid_tbl_len; ++i) |
| 565 | kfree(p->gid_group.attrs[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | |
Dmitry Torokhov | d48593b | 2005-04-29 00:58:46 -0500 | [diff] [blame] | 567 | kfree(p->gid_group.attrs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | |
| 569 | err_remove_pma: |
| 570 | sysfs_remove_group(&p->kobj, &pma_group); |
| 571 | |
| 572 | err_put: |
| 573 | kobject_put(&device->ports_parent); |
| 574 | |
| 575 | err: |
| 576 | kfree(p); |
| 577 | return ret; |
| 578 | } |
| 579 | |
| 580 | static ssize_t show_node_type(struct class_device *cdev, char *buf) |
| 581 | { |
| 582 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); |
| 583 | |
| 584 | switch (dev->node_type) { |
| 585 | case IB_NODE_CA: return sprintf(buf, "%d: CA\n", dev->node_type); |
| 586 | case IB_NODE_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type); |
| 587 | case IB_NODE_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type); |
| 588 | default: return sprintf(buf, "%d: <unknown>\n", dev->node_type); |
| 589 | } |
| 590 | } |
| 591 | |
| 592 | static ssize_t show_sys_image_guid(struct class_device *cdev, char *buf) |
| 593 | { |
| 594 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); |
| 595 | struct ib_device_attr attr; |
| 596 | ssize_t ret; |
| 597 | |
| 598 | ret = ib_query_device(dev, &attr); |
| 599 | if (ret) |
| 600 | return ret; |
| 601 | |
| 602 | return sprintf(buf, "%04x:%04x:%04x:%04x\n", |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 603 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[0]), |
| 604 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[1]), |
| 605 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[2]), |
| 606 | be16_to_cpu(((__be16 *) &attr.sys_image_guid)[3])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 607 | } |
| 608 | |
| 609 | static ssize_t show_node_guid(struct class_device *cdev, char *buf) |
| 610 | { |
| 611 | struct ib_device *dev = container_of(cdev, struct ib_device, class_dev); |
| 612 | struct ib_device_attr attr; |
| 613 | ssize_t ret; |
| 614 | |
| 615 | ret = ib_query_device(dev, &attr); |
| 616 | if (ret) |
| 617 | return ret; |
| 618 | |
| 619 | return sprintf(buf, "%04x:%04x:%04x:%04x\n", |
Sean Hefty | 97f52eb | 2005-08-13 21:05:57 -0700 | [diff] [blame] | 620 | be16_to_cpu(((__be16 *) &attr.node_guid)[0]), |
| 621 | be16_to_cpu(((__be16 *) &attr.node_guid)[1]), |
| 622 | be16_to_cpu(((__be16 *) &attr.node_guid)[2]), |
| 623 | be16_to_cpu(((__be16 *) &attr.node_guid)[3])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | } |
| 625 | |
| 626 | static CLASS_DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL); |
| 627 | static CLASS_DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL); |
| 628 | static CLASS_DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL); |
| 629 | |
| 630 | static struct class_device_attribute *ib_class_attributes[] = { |
| 631 | &class_device_attr_node_type, |
| 632 | &class_device_attr_sys_image_guid, |
| 633 | &class_device_attr_node_guid |
| 634 | }; |
| 635 | |
| 636 | static struct class ib_class = { |
| 637 | .name = "infiniband", |
| 638 | .release = ib_device_release, |
| 639 | .hotplug = ib_device_hotplug, |
| 640 | }; |
| 641 | |
| 642 | int ib_device_register_sysfs(struct ib_device *device) |
| 643 | { |
| 644 | struct class_device *class_dev = &device->class_dev; |
| 645 | int ret; |
| 646 | int i; |
| 647 | |
| 648 | class_dev->class = &ib_class; |
| 649 | class_dev->class_data = device; |
| 650 | strlcpy(class_dev->class_id, device->name, BUS_ID_SIZE); |
| 651 | |
| 652 | INIT_LIST_HEAD(&device->port_list); |
| 653 | |
| 654 | ret = class_device_register(class_dev); |
| 655 | if (ret) |
| 656 | goto err; |
| 657 | |
| 658 | for (i = 0; i < ARRAY_SIZE(ib_class_attributes); ++i) { |
| 659 | ret = class_device_create_file(class_dev, ib_class_attributes[i]); |
| 660 | if (ret) |
| 661 | goto err_unregister; |
| 662 | } |
| 663 | |
| 664 | device->ports_parent.parent = kobject_get(&class_dev->kobj); |
| 665 | if (!device->ports_parent.parent) { |
| 666 | ret = -EBUSY; |
| 667 | goto err_unregister; |
| 668 | } |
| 669 | ret = kobject_set_name(&device->ports_parent, "ports"); |
| 670 | if (ret) |
| 671 | goto err_put; |
| 672 | ret = kobject_register(&device->ports_parent); |
| 673 | if (ret) |
| 674 | goto err_put; |
| 675 | |
| 676 | if (device->node_type == IB_NODE_SWITCH) { |
| 677 | ret = add_port(device, 0); |
| 678 | if (ret) |
| 679 | goto err_put; |
| 680 | } else { |
| 681 | int i; |
| 682 | |
| 683 | for (i = 1; i <= device->phys_port_cnt; ++i) { |
| 684 | ret = add_port(device, i); |
| 685 | if (ret) |
| 686 | goto err_put; |
| 687 | } |
| 688 | } |
| 689 | |
| 690 | return 0; |
| 691 | |
| 692 | err_put: |
| 693 | { |
| 694 | struct kobject *p, *t; |
| 695 | struct ib_port *port; |
| 696 | |
| 697 | list_for_each_entry_safe(p, t, &device->port_list, entry) { |
| 698 | list_del(&p->entry); |
| 699 | port = container_of(p, struct ib_port, kobj); |
| 700 | sysfs_remove_group(p, &pma_group); |
| 701 | sysfs_remove_group(p, &port->pkey_group); |
| 702 | sysfs_remove_group(p, &port->gid_group); |
| 703 | kobject_unregister(p); |
| 704 | } |
| 705 | } |
| 706 | |
| 707 | kobject_put(&class_dev->kobj); |
| 708 | |
| 709 | err_unregister: |
| 710 | class_device_unregister(class_dev); |
| 711 | |
| 712 | err: |
| 713 | return ret; |
| 714 | } |
| 715 | |
| 716 | void ib_device_unregister_sysfs(struct ib_device *device) |
| 717 | { |
| 718 | struct kobject *p, *t; |
| 719 | struct ib_port *port; |
| 720 | |
| 721 | list_for_each_entry_safe(p, t, &device->port_list, entry) { |
| 722 | list_del(&p->entry); |
| 723 | port = container_of(p, struct ib_port, kobj); |
| 724 | sysfs_remove_group(p, &pma_group); |
| 725 | sysfs_remove_group(p, &port->pkey_group); |
| 726 | sysfs_remove_group(p, &port->gid_group); |
| 727 | kobject_unregister(p); |
| 728 | } |
| 729 | |
| 730 | kobject_unregister(&device->ports_parent); |
| 731 | class_device_unregister(&device->class_dev); |
| 732 | } |
| 733 | |
| 734 | int ib_sysfs_setup(void) |
| 735 | { |
| 736 | return class_register(&ib_class); |
| 737 | } |
| 738 | |
| 739 | void ib_sysfs_cleanup(void) |
| 740 | { |
| 741 | class_unregister(&ib_class); |
| 742 | } |