Mike Marciniszyn | 7724105 | 2015-07-30 15:17:43 -0400 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * This file is provided under a dual BSD/GPLv2 license. When using or |
| 4 | * redistributing this file, you may do so under either license. |
| 5 | * |
| 6 | * GPL LICENSE SUMMARY |
| 7 | * |
| 8 | * Copyright(c) 2015 Intel Corporation. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of version 2 of the GNU General Public License as |
| 12 | * published by the Free Software Foundation. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, but |
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * General Public License for more details. |
| 18 | * |
| 19 | * BSD LICENSE |
| 20 | * |
| 21 | * Copyright(c) 2015 Intel Corporation. |
| 22 | * |
| 23 | * Redistribution and use in source and binary forms, with or without |
| 24 | * modification, are permitted provided that the following conditions |
| 25 | * are met: |
| 26 | * |
| 27 | * - Redistributions of source code must retain the above copyright |
| 28 | * notice, this list of conditions and the following disclaimer. |
| 29 | * - Redistributions in binary form must reproduce the above copyright |
| 30 | * notice, this list of conditions and the following disclaimer in |
| 31 | * the documentation and/or other materials provided with the |
| 32 | * distribution. |
| 33 | * - Neither the name of Intel Corporation nor the names of its |
| 34 | * contributors may be used to endorse or promote products derived |
| 35 | * from this software without specific prior written permission. |
| 36 | * |
| 37 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 38 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 39 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 40 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 41 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 42 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 43 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 44 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 45 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 46 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 47 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 48 | * |
| 49 | */ |
| 50 | #include <linux/ctype.h> |
| 51 | |
| 52 | #include "hfi.h" |
| 53 | #include "mad.h" |
| 54 | #include "trace.h" |
| 55 | |
| 56 | |
| 57 | /* |
| 58 | * Start of per-port congestion control structures and support code |
| 59 | */ |
| 60 | |
| 61 | /* |
| 62 | * Congestion control table size followed by table entries |
| 63 | */ |
| 64 | static ssize_t read_cc_table_bin(struct file *filp, struct kobject *kobj, |
| 65 | struct bin_attribute *bin_attr, |
| 66 | char *buf, loff_t pos, size_t count) |
| 67 | { |
| 68 | int ret; |
| 69 | struct hfi1_pportdata *ppd = |
| 70 | container_of(kobj, struct hfi1_pportdata, pport_cc_kobj); |
| 71 | struct cc_state *cc_state; |
| 72 | |
| 73 | ret = ppd->total_cct_entry * sizeof(struct ib_cc_table_entry_shadow) |
| 74 | + sizeof(__be16); |
| 75 | |
| 76 | if (pos > ret) |
| 77 | return -EINVAL; |
| 78 | |
| 79 | if (count > ret - pos) |
| 80 | count = ret - pos; |
| 81 | |
| 82 | if (!count) |
| 83 | return count; |
| 84 | |
| 85 | rcu_read_lock(); |
| 86 | cc_state = get_cc_state(ppd); |
| 87 | if (cc_state == NULL) { |
| 88 | rcu_read_unlock(); |
| 89 | return -EINVAL; |
| 90 | } |
| 91 | memcpy(buf, &cc_state->cct, count); |
| 92 | rcu_read_unlock(); |
| 93 | |
| 94 | return count; |
| 95 | } |
| 96 | |
| 97 | static void port_release(struct kobject *kobj) |
| 98 | { |
| 99 | /* nothing to do since memory is freed by hfi1_free_devdata() */ |
| 100 | } |
| 101 | |
| 102 | static struct kobj_type port_cc_ktype = { |
| 103 | .release = port_release, |
| 104 | }; |
| 105 | |
| 106 | static struct bin_attribute cc_table_bin_attr = { |
| 107 | .attr = {.name = "cc_table_bin", .mode = 0444}, |
| 108 | .read = read_cc_table_bin, |
| 109 | .size = PAGE_SIZE, |
| 110 | }; |
| 111 | |
| 112 | /* |
| 113 | * Congestion settings: port control, control map and an array of 16 |
| 114 | * entries for the congestion entries - increase, timer, event log |
| 115 | * trigger threshold and the minimum injection rate delay. |
| 116 | */ |
| 117 | static ssize_t read_cc_setting_bin(struct file *filp, struct kobject *kobj, |
| 118 | struct bin_attribute *bin_attr, |
| 119 | char *buf, loff_t pos, size_t count) |
| 120 | { |
| 121 | int ret; |
| 122 | struct hfi1_pportdata *ppd = |
| 123 | container_of(kobj, struct hfi1_pportdata, pport_cc_kobj); |
| 124 | struct cc_state *cc_state; |
| 125 | |
| 126 | ret = sizeof(struct opa_congestion_setting_attr_shadow); |
| 127 | |
| 128 | if (pos > ret) |
| 129 | return -EINVAL; |
| 130 | if (count > ret - pos) |
| 131 | count = ret - pos; |
| 132 | |
| 133 | if (!count) |
| 134 | return count; |
| 135 | |
| 136 | rcu_read_lock(); |
| 137 | cc_state = get_cc_state(ppd); |
| 138 | if (cc_state == NULL) { |
| 139 | rcu_read_unlock(); |
| 140 | return -EINVAL; |
| 141 | } |
| 142 | memcpy(buf, &cc_state->cong_setting, count); |
| 143 | rcu_read_unlock(); |
| 144 | |
| 145 | return count; |
| 146 | } |
| 147 | |
| 148 | static struct bin_attribute cc_setting_bin_attr = { |
| 149 | .attr = {.name = "cc_settings_bin", .mode = 0444}, |
| 150 | .read = read_cc_setting_bin, |
| 151 | .size = PAGE_SIZE, |
| 152 | }; |
| 153 | |
| 154 | /* Start sc2vl */ |
| 155 | #define HFI1_SC2VL_ATTR(N) \ |
| 156 | static struct hfi1_sc2vl_attr hfi1_sc2vl_attr_##N = { \ |
| 157 | .attr = { .name = __stringify(N), .mode = 0444 }, \ |
| 158 | .sc = N \ |
| 159 | } |
| 160 | |
| 161 | struct hfi1_sc2vl_attr { |
| 162 | struct attribute attr; |
| 163 | int sc; |
| 164 | }; |
| 165 | |
| 166 | HFI1_SC2VL_ATTR(0); |
| 167 | HFI1_SC2VL_ATTR(1); |
| 168 | HFI1_SC2VL_ATTR(2); |
| 169 | HFI1_SC2VL_ATTR(3); |
| 170 | HFI1_SC2VL_ATTR(4); |
| 171 | HFI1_SC2VL_ATTR(5); |
| 172 | HFI1_SC2VL_ATTR(6); |
| 173 | HFI1_SC2VL_ATTR(7); |
| 174 | HFI1_SC2VL_ATTR(8); |
| 175 | HFI1_SC2VL_ATTR(9); |
| 176 | HFI1_SC2VL_ATTR(10); |
| 177 | HFI1_SC2VL_ATTR(11); |
| 178 | HFI1_SC2VL_ATTR(12); |
| 179 | HFI1_SC2VL_ATTR(13); |
| 180 | HFI1_SC2VL_ATTR(14); |
| 181 | HFI1_SC2VL_ATTR(15); |
| 182 | HFI1_SC2VL_ATTR(16); |
| 183 | HFI1_SC2VL_ATTR(17); |
| 184 | HFI1_SC2VL_ATTR(18); |
| 185 | HFI1_SC2VL_ATTR(19); |
| 186 | HFI1_SC2VL_ATTR(20); |
| 187 | HFI1_SC2VL_ATTR(21); |
| 188 | HFI1_SC2VL_ATTR(22); |
| 189 | HFI1_SC2VL_ATTR(23); |
| 190 | HFI1_SC2VL_ATTR(24); |
| 191 | HFI1_SC2VL_ATTR(25); |
| 192 | HFI1_SC2VL_ATTR(26); |
| 193 | HFI1_SC2VL_ATTR(27); |
| 194 | HFI1_SC2VL_ATTR(28); |
| 195 | HFI1_SC2VL_ATTR(29); |
| 196 | HFI1_SC2VL_ATTR(30); |
| 197 | HFI1_SC2VL_ATTR(31); |
| 198 | |
| 199 | |
| 200 | static struct attribute *sc2vl_default_attributes[] = { |
| 201 | &hfi1_sc2vl_attr_0.attr, |
| 202 | &hfi1_sc2vl_attr_1.attr, |
| 203 | &hfi1_sc2vl_attr_2.attr, |
| 204 | &hfi1_sc2vl_attr_3.attr, |
| 205 | &hfi1_sc2vl_attr_4.attr, |
| 206 | &hfi1_sc2vl_attr_5.attr, |
| 207 | &hfi1_sc2vl_attr_6.attr, |
| 208 | &hfi1_sc2vl_attr_7.attr, |
| 209 | &hfi1_sc2vl_attr_8.attr, |
| 210 | &hfi1_sc2vl_attr_9.attr, |
| 211 | &hfi1_sc2vl_attr_10.attr, |
| 212 | &hfi1_sc2vl_attr_11.attr, |
| 213 | &hfi1_sc2vl_attr_12.attr, |
| 214 | &hfi1_sc2vl_attr_13.attr, |
| 215 | &hfi1_sc2vl_attr_14.attr, |
| 216 | &hfi1_sc2vl_attr_15.attr, |
| 217 | &hfi1_sc2vl_attr_16.attr, |
| 218 | &hfi1_sc2vl_attr_17.attr, |
| 219 | &hfi1_sc2vl_attr_18.attr, |
| 220 | &hfi1_sc2vl_attr_19.attr, |
| 221 | &hfi1_sc2vl_attr_20.attr, |
| 222 | &hfi1_sc2vl_attr_21.attr, |
| 223 | &hfi1_sc2vl_attr_22.attr, |
| 224 | &hfi1_sc2vl_attr_23.attr, |
| 225 | &hfi1_sc2vl_attr_24.attr, |
| 226 | &hfi1_sc2vl_attr_25.attr, |
| 227 | &hfi1_sc2vl_attr_26.attr, |
| 228 | &hfi1_sc2vl_attr_27.attr, |
| 229 | &hfi1_sc2vl_attr_28.attr, |
| 230 | &hfi1_sc2vl_attr_29.attr, |
| 231 | &hfi1_sc2vl_attr_30.attr, |
| 232 | &hfi1_sc2vl_attr_31.attr, |
| 233 | NULL |
| 234 | }; |
| 235 | |
| 236 | static ssize_t sc2vl_attr_show(struct kobject *kobj, struct attribute *attr, |
| 237 | char *buf) |
| 238 | { |
| 239 | struct hfi1_sc2vl_attr *sattr = |
| 240 | container_of(attr, struct hfi1_sc2vl_attr, attr); |
| 241 | struct hfi1_pportdata *ppd = |
| 242 | container_of(kobj, struct hfi1_pportdata, sc2vl_kobj); |
| 243 | struct hfi1_devdata *dd = ppd->dd; |
| 244 | |
| 245 | return sprintf(buf, "%u\n", *((u8 *)dd->sc2vl + sattr->sc)); |
| 246 | } |
| 247 | |
| 248 | static const struct sysfs_ops hfi1_sc2vl_ops = { |
| 249 | .show = sc2vl_attr_show, |
| 250 | }; |
| 251 | |
| 252 | static struct kobj_type hfi1_sc2vl_ktype = { |
| 253 | .release = port_release, |
| 254 | .sysfs_ops = &hfi1_sc2vl_ops, |
| 255 | .default_attrs = sc2vl_default_attributes |
| 256 | }; |
| 257 | |
| 258 | /* End sc2vl */ |
| 259 | |
| 260 | /* Start sl2sc */ |
| 261 | #define HFI1_SL2SC_ATTR(N) \ |
| 262 | static struct hfi1_sl2sc_attr hfi1_sl2sc_attr_##N = { \ |
| 263 | .attr = { .name = __stringify(N), .mode = 0444 }, \ |
| 264 | .sl = N \ |
| 265 | } |
| 266 | |
| 267 | struct hfi1_sl2sc_attr { |
| 268 | struct attribute attr; |
| 269 | int sl; |
| 270 | }; |
| 271 | |
| 272 | HFI1_SL2SC_ATTR(0); |
| 273 | HFI1_SL2SC_ATTR(1); |
| 274 | HFI1_SL2SC_ATTR(2); |
| 275 | HFI1_SL2SC_ATTR(3); |
| 276 | HFI1_SL2SC_ATTR(4); |
| 277 | HFI1_SL2SC_ATTR(5); |
| 278 | HFI1_SL2SC_ATTR(6); |
| 279 | HFI1_SL2SC_ATTR(7); |
| 280 | HFI1_SL2SC_ATTR(8); |
| 281 | HFI1_SL2SC_ATTR(9); |
| 282 | HFI1_SL2SC_ATTR(10); |
| 283 | HFI1_SL2SC_ATTR(11); |
| 284 | HFI1_SL2SC_ATTR(12); |
| 285 | HFI1_SL2SC_ATTR(13); |
| 286 | HFI1_SL2SC_ATTR(14); |
| 287 | HFI1_SL2SC_ATTR(15); |
| 288 | HFI1_SL2SC_ATTR(16); |
| 289 | HFI1_SL2SC_ATTR(17); |
| 290 | HFI1_SL2SC_ATTR(18); |
| 291 | HFI1_SL2SC_ATTR(19); |
| 292 | HFI1_SL2SC_ATTR(20); |
| 293 | HFI1_SL2SC_ATTR(21); |
| 294 | HFI1_SL2SC_ATTR(22); |
| 295 | HFI1_SL2SC_ATTR(23); |
| 296 | HFI1_SL2SC_ATTR(24); |
| 297 | HFI1_SL2SC_ATTR(25); |
| 298 | HFI1_SL2SC_ATTR(26); |
| 299 | HFI1_SL2SC_ATTR(27); |
| 300 | HFI1_SL2SC_ATTR(28); |
| 301 | HFI1_SL2SC_ATTR(29); |
| 302 | HFI1_SL2SC_ATTR(30); |
| 303 | HFI1_SL2SC_ATTR(31); |
| 304 | |
| 305 | |
| 306 | static struct attribute *sl2sc_default_attributes[] = { |
| 307 | &hfi1_sl2sc_attr_0.attr, |
| 308 | &hfi1_sl2sc_attr_1.attr, |
| 309 | &hfi1_sl2sc_attr_2.attr, |
| 310 | &hfi1_sl2sc_attr_3.attr, |
| 311 | &hfi1_sl2sc_attr_4.attr, |
| 312 | &hfi1_sl2sc_attr_5.attr, |
| 313 | &hfi1_sl2sc_attr_6.attr, |
| 314 | &hfi1_sl2sc_attr_7.attr, |
| 315 | &hfi1_sl2sc_attr_8.attr, |
| 316 | &hfi1_sl2sc_attr_9.attr, |
| 317 | &hfi1_sl2sc_attr_10.attr, |
| 318 | &hfi1_sl2sc_attr_11.attr, |
| 319 | &hfi1_sl2sc_attr_12.attr, |
| 320 | &hfi1_sl2sc_attr_13.attr, |
| 321 | &hfi1_sl2sc_attr_14.attr, |
| 322 | &hfi1_sl2sc_attr_15.attr, |
| 323 | &hfi1_sl2sc_attr_16.attr, |
| 324 | &hfi1_sl2sc_attr_17.attr, |
| 325 | &hfi1_sl2sc_attr_18.attr, |
| 326 | &hfi1_sl2sc_attr_19.attr, |
| 327 | &hfi1_sl2sc_attr_20.attr, |
| 328 | &hfi1_sl2sc_attr_21.attr, |
| 329 | &hfi1_sl2sc_attr_22.attr, |
| 330 | &hfi1_sl2sc_attr_23.attr, |
| 331 | &hfi1_sl2sc_attr_24.attr, |
| 332 | &hfi1_sl2sc_attr_25.attr, |
| 333 | &hfi1_sl2sc_attr_26.attr, |
| 334 | &hfi1_sl2sc_attr_27.attr, |
| 335 | &hfi1_sl2sc_attr_28.attr, |
| 336 | &hfi1_sl2sc_attr_29.attr, |
| 337 | &hfi1_sl2sc_attr_30.attr, |
| 338 | &hfi1_sl2sc_attr_31.attr, |
| 339 | NULL |
| 340 | }; |
| 341 | |
| 342 | static ssize_t sl2sc_attr_show(struct kobject *kobj, struct attribute *attr, |
| 343 | char *buf) |
| 344 | { |
| 345 | struct hfi1_sl2sc_attr *sattr = |
| 346 | container_of(attr, struct hfi1_sl2sc_attr, attr); |
| 347 | struct hfi1_pportdata *ppd = |
| 348 | container_of(kobj, struct hfi1_pportdata, sl2sc_kobj); |
| 349 | struct hfi1_ibport *ibp = &ppd->ibport_data; |
| 350 | |
| 351 | return sprintf(buf, "%u\n", ibp->sl_to_sc[sattr->sl]); |
| 352 | } |
| 353 | |
| 354 | static const struct sysfs_ops hfi1_sl2sc_ops = { |
| 355 | .show = sl2sc_attr_show, |
| 356 | }; |
| 357 | |
| 358 | static struct kobj_type hfi1_sl2sc_ktype = { |
| 359 | .release = port_release, |
| 360 | .sysfs_ops = &hfi1_sl2sc_ops, |
| 361 | .default_attrs = sl2sc_default_attributes |
| 362 | }; |
| 363 | |
| 364 | /* End sl2sc */ |
| 365 | |
| 366 | /* Start vl2mtu */ |
| 367 | |
| 368 | #define HFI1_VL2MTU_ATTR(N) \ |
| 369 | static struct hfi1_vl2mtu_attr hfi1_vl2mtu_attr_##N = { \ |
| 370 | .attr = { .name = __stringify(N), .mode = 0444 }, \ |
| 371 | .vl = N \ |
| 372 | } |
| 373 | |
| 374 | struct hfi1_vl2mtu_attr { |
| 375 | struct attribute attr; |
| 376 | int vl; |
| 377 | }; |
| 378 | |
| 379 | HFI1_VL2MTU_ATTR(0); |
| 380 | HFI1_VL2MTU_ATTR(1); |
| 381 | HFI1_VL2MTU_ATTR(2); |
| 382 | HFI1_VL2MTU_ATTR(3); |
| 383 | HFI1_VL2MTU_ATTR(4); |
| 384 | HFI1_VL2MTU_ATTR(5); |
| 385 | HFI1_VL2MTU_ATTR(6); |
| 386 | HFI1_VL2MTU_ATTR(7); |
| 387 | HFI1_VL2MTU_ATTR(8); |
| 388 | HFI1_VL2MTU_ATTR(9); |
| 389 | HFI1_VL2MTU_ATTR(10); |
| 390 | HFI1_VL2MTU_ATTR(11); |
| 391 | HFI1_VL2MTU_ATTR(12); |
| 392 | HFI1_VL2MTU_ATTR(13); |
| 393 | HFI1_VL2MTU_ATTR(14); |
| 394 | HFI1_VL2MTU_ATTR(15); |
| 395 | |
| 396 | static struct attribute *vl2mtu_default_attributes[] = { |
| 397 | &hfi1_vl2mtu_attr_0.attr, |
| 398 | &hfi1_vl2mtu_attr_1.attr, |
| 399 | &hfi1_vl2mtu_attr_2.attr, |
| 400 | &hfi1_vl2mtu_attr_3.attr, |
| 401 | &hfi1_vl2mtu_attr_4.attr, |
| 402 | &hfi1_vl2mtu_attr_5.attr, |
| 403 | &hfi1_vl2mtu_attr_6.attr, |
| 404 | &hfi1_vl2mtu_attr_7.attr, |
| 405 | &hfi1_vl2mtu_attr_8.attr, |
| 406 | &hfi1_vl2mtu_attr_9.attr, |
| 407 | &hfi1_vl2mtu_attr_10.attr, |
| 408 | &hfi1_vl2mtu_attr_11.attr, |
| 409 | &hfi1_vl2mtu_attr_12.attr, |
| 410 | &hfi1_vl2mtu_attr_13.attr, |
| 411 | &hfi1_vl2mtu_attr_14.attr, |
| 412 | &hfi1_vl2mtu_attr_15.attr, |
| 413 | NULL |
| 414 | }; |
| 415 | |
| 416 | static ssize_t vl2mtu_attr_show(struct kobject *kobj, struct attribute *attr, |
| 417 | char *buf) |
| 418 | { |
| 419 | struct hfi1_vl2mtu_attr *vlattr = |
| 420 | container_of(attr, struct hfi1_vl2mtu_attr, attr); |
| 421 | struct hfi1_pportdata *ppd = |
| 422 | container_of(kobj, struct hfi1_pportdata, vl2mtu_kobj); |
| 423 | struct hfi1_devdata *dd = ppd->dd; |
| 424 | |
| 425 | return sprintf(buf, "%u\n", dd->vld[vlattr->vl].mtu); |
| 426 | } |
| 427 | |
| 428 | static const struct sysfs_ops hfi1_vl2mtu_ops = { |
| 429 | .show = vl2mtu_attr_show, |
| 430 | }; |
| 431 | |
| 432 | static struct kobj_type hfi1_vl2mtu_ktype = { |
| 433 | .release = port_release, |
| 434 | .sysfs_ops = &hfi1_vl2mtu_ops, |
| 435 | .default_attrs = vl2mtu_default_attributes |
| 436 | }; |
| 437 | |
| 438 | |
| 439 | /* end of per-port file structures and support code */ |
| 440 | |
| 441 | /* |
| 442 | * Start of per-unit (or driver, in some cases, but replicated |
| 443 | * per unit) functions (these get a device *) |
| 444 | */ |
| 445 | static ssize_t show_rev(struct device *device, struct device_attribute *attr, |
| 446 | char *buf) |
| 447 | { |
| 448 | struct hfi1_ibdev *dev = |
Dennis Dalessandro | ec3f2c1 | 2016-01-19 14:41:33 -0800 | [diff] [blame] | 449 | container_of(device, struct hfi1_ibdev, rdi.ibdev.dev); |
Mike Marciniszyn | 7724105 | 2015-07-30 15:17:43 -0400 | [diff] [blame] | 450 | |
| 451 | return sprintf(buf, "%x\n", dd_from_dev(dev)->minrev); |
| 452 | } |
| 453 | |
| 454 | static ssize_t show_hfi(struct device *device, struct device_attribute *attr, |
| 455 | char *buf) |
| 456 | { |
| 457 | struct hfi1_ibdev *dev = |
Dennis Dalessandro | ec3f2c1 | 2016-01-19 14:41:33 -0800 | [diff] [blame] | 458 | container_of(device, struct hfi1_ibdev, rdi.ibdev.dev); |
Mike Marciniszyn | 7724105 | 2015-07-30 15:17:43 -0400 | [diff] [blame] | 459 | struct hfi1_devdata *dd = dd_from_dev(dev); |
| 460 | int ret; |
| 461 | |
| 462 | if (!dd->boardname) |
| 463 | ret = -EINVAL; |
| 464 | else |
| 465 | ret = scnprintf(buf, PAGE_SIZE, "%s\n", dd->boardname); |
| 466 | return ret; |
| 467 | } |
| 468 | |
| 469 | static ssize_t show_boardversion(struct device *device, |
| 470 | struct device_attribute *attr, char *buf) |
| 471 | { |
| 472 | struct hfi1_ibdev *dev = |
Dennis Dalessandro | ec3f2c1 | 2016-01-19 14:41:33 -0800 | [diff] [blame] | 473 | container_of(device, struct hfi1_ibdev, rdi.ibdev.dev); |
Mike Marciniszyn | 7724105 | 2015-07-30 15:17:43 -0400 | [diff] [blame] | 474 | struct hfi1_devdata *dd = dd_from_dev(dev); |
| 475 | |
| 476 | /* The string printed here is already newline-terminated. */ |
| 477 | return scnprintf(buf, PAGE_SIZE, "%s", dd->boardversion); |
| 478 | } |
| 479 | |
| 480 | |
| 481 | static ssize_t show_nctxts(struct device *device, |
| 482 | struct device_attribute *attr, char *buf) |
| 483 | { |
| 484 | struct hfi1_ibdev *dev = |
Dennis Dalessandro | ec3f2c1 | 2016-01-19 14:41:33 -0800 | [diff] [blame] | 485 | container_of(device, struct hfi1_ibdev, rdi.ibdev.dev); |
Mike Marciniszyn | 7724105 | 2015-07-30 15:17:43 -0400 | [diff] [blame] | 486 | struct hfi1_devdata *dd = dd_from_dev(dev); |
| 487 | |
| 488 | /* |
| 489 | * Return the smaller of send and receive contexts. |
| 490 | * Normally, user level applications would require both a send |
| 491 | * and a receive context, so returning the smaller of the two counts |
| 492 | * give a more accurate picture of total contexts available. |
| 493 | */ |
| 494 | return scnprintf(buf, PAGE_SIZE, "%u\n", |
| 495 | min(dd->num_rcv_contexts - dd->first_user_ctxt, |
| 496 | (u32)dd->sc_sizes[SC_USER].count)); |
| 497 | } |
| 498 | |
| 499 | static ssize_t show_nfreectxts(struct device *device, |
| 500 | struct device_attribute *attr, char *buf) |
| 501 | { |
| 502 | struct hfi1_ibdev *dev = |
Dennis Dalessandro | ec3f2c1 | 2016-01-19 14:41:33 -0800 | [diff] [blame] | 503 | container_of(device, struct hfi1_ibdev, rdi.ibdev.dev); |
Mike Marciniszyn | 7724105 | 2015-07-30 15:17:43 -0400 | [diff] [blame] | 504 | struct hfi1_devdata *dd = dd_from_dev(dev); |
| 505 | |
| 506 | /* Return the number of free user ports (contexts) available. */ |
| 507 | return scnprintf(buf, PAGE_SIZE, "%u\n", dd->freectxts); |
| 508 | } |
| 509 | |
| 510 | static ssize_t show_serial(struct device *device, |
| 511 | struct device_attribute *attr, char *buf) |
| 512 | { |
| 513 | struct hfi1_ibdev *dev = |
Dennis Dalessandro | ec3f2c1 | 2016-01-19 14:41:33 -0800 | [diff] [blame] | 514 | container_of(device, struct hfi1_ibdev, rdi.ibdev.dev); |
Mike Marciniszyn | 7724105 | 2015-07-30 15:17:43 -0400 | [diff] [blame] | 515 | struct hfi1_devdata *dd = dd_from_dev(dev); |
| 516 | |
| 517 | return scnprintf(buf, PAGE_SIZE, "%s", dd->serial); |
| 518 | |
| 519 | } |
| 520 | |
| 521 | static ssize_t store_chip_reset(struct device *device, |
| 522 | struct device_attribute *attr, const char *buf, |
| 523 | size_t count) |
| 524 | { |
| 525 | struct hfi1_ibdev *dev = |
Dennis Dalessandro | ec3f2c1 | 2016-01-19 14:41:33 -0800 | [diff] [blame] | 526 | container_of(device, struct hfi1_ibdev, rdi.ibdev.dev); |
Mike Marciniszyn | 7724105 | 2015-07-30 15:17:43 -0400 | [diff] [blame] | 527 | struct hfi1_devdata *dd = dd_from_dev(dev); |
| 528 | int ret; |
| 529 | |
| 530 | if (count < 5 || memcmp(buf, "reset", 5) || !dd->diag_client) { |
| 531 | ret = -EINVAL; |
| 532 | goto bail; |
| 533 | } |
| 534 | |
| 535 | ret = hfi1_reset_device(dd->unit); |
| 536 | bail: |
| 537 | return ret < 0 ? ret : count; |
| 538 | } |
| 539 | |
| 540 | /* |
| 541 | * Convert the reported temperature from an integer (reported in |
| 542 | * units of 0.25C) to a floating point number. |
| 543 | */ |
| 544 | #define temp2str(temp, buf, size, idx) \ |
| 545 | scnprintf((buf) + (idx), (size) - (idx), "%u.%02u ", \ |
| 546 | ((temp) >> 2), ((temp) & 0x3) * 25) |
| 547 | |
| 548 | /* |
| 549 | * Dump tempsense values, in decimal, to ease shell-scripts. |
| 550 | */ |
| 551 | static ssize_t show_tempsense(struct device *device, |
| 552 | struct device_attribute *attr, char *buf) |
| 553 | { |
| 554 | struct hfi1_ibdev *dev = |
Dennis Dalessandro | ec3f2c1 | 2016-01-19 14:41:33 -0800 | [diff] [blame] | 555 | container_of(device, struct hfi1_ibdev, rdi.ibdev.dev); |
Mike Marciniszyn | 7724105 | 2015-07-30 15:17:43 -0400 | [diff] [blame] | 556 | struct hfi1_devdata *dd = dd_from_dev(dev); |
| 557 | struct hfi1_temp temp; |
Amitoj Kaur Chawla | 4690ba0 | 2015-10-15 13:54:35 +0530 | [diff] [blame] | 558 | int ret; |
Mike Marciniszyn | 7724105 | 2015-07-30 15:17:43 -0400 | [diff] [blame] | 559 | |
| 560 | ret = hfi1_tempsense_rd(dd, &temp); |
| 561 | if (!ret) { |
| 562 | int idx = 0; |
| 563 | |
| 564 | idx += temp2str(temp.curr, buf, PAGE_SIZE, idx); |
| 565 | idx += temp2str(temp.lo_lim, buf, PAGE_SIZE, idx); |
| 566 | idx += temp2str(temp.hi_lim, buf, PAGE_SIZE, idx); |
| 567 | idx += temp2str(temp.crit_lim, buf, PAGE_SIZE, idx); |
| 568 | idx += scnprintf(buf + idx, PAGE_SIZE - idx, |
| 569 | "%u %u %u\n", temp.triggers & 0x1, |
| 570 | temp.triggers & 0x2, temp.triggers & 0x4); |
| 571 | ret = idx; |
| 572 | } |
| 573 | return ret; |
| 574 | } |
| 575 | |
| 576 | /* |
| 577 | * end of per-unit (or driver, in some cases, but replicated |
| 578 | * per unit) functions |
| 579 | */ |
| 580 | |
| 581 | /* start of per-unit file structures and support code */ |
| 582 | static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); |
| 583 | static DEVICE_ATTR(board_id, S_IRUGO, show_hfi, NULL); |
| 584 | static DEVICE_ATTR(nctxts, S_IRUGO, show_nctxts, NULL); |
| 585 | static DEVICE_ATTR(nfreectxts, S_IRUGO, show_nfreectxts, NULL); |
| 586 | static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL); |
| 587 | static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL); |
| 588 | static DEVICE_ATTR(tempsense, S_IRUGO, show_tempsense, NULL); |
| 589 | static DEVICE_ATTR(chip_reset, S_IWUSR, NULL, store_chip_reset); |
| 590 | |
| 591 | static struct device_attribute *hfi1_attributes[] = { |
| 592 | &dev_attr_hw_rev, |
| 593 | &dev_attr_board_id, |
| 594 | &dev_attr_nctxts, |
| 595 | &dev_attr_nfreectxts, |
| 596 | &dev_attr_serial, |
| 597 | &dev_attr_boardversion, |
| 598 | &dev_attr_tempsense, |
| 599 | &dev_attr_chip_reset, |
| 600 | }; |
| 601 | |
| 602 | int hfi1_create_port_files(struct ib_device *ibdev, u8 port_num, |
| 603 | struct kobject *kobj) |
| 604 | { |
| 605 | struct hfi1_pportdata *ppd; |
| 606 | struct hfi1_devdata *dd = dd_from_ibdev(ibdev); |
| 607 | int ret; |
| 608 | |
| 609 | if (!port_num || port_num > dd->num_pports) { |
| 610 | dd_dev_err(dd, |
| 611 | "Skipping infiniband class with invalid port %u\n", |
| 612 | port_num); |
| 613 | return -ENODEV; |
| 614 | } |
| 615 | ppd = &dd->pport[port_num - 1]; |
| 616 | |
| 617 | ret = kobject_init_and_add(&ppd->sc2vl_kobj, &hfi1_sc2vl_ktype, kobj, |
| 618 | "sc2vl"); |
| 619 | if (ret) { |
| 620 | dd_dev_err(dd, |
| 621 | "Skipping sc2vl sysfs info, (err %d) port %u\n", |
| 622 | ret, port_num); |
| 623 | goto bail; |
| 624 | } |
| 625 | kobject_uevent(&ppd->sc2vl_kobj, KOBJ_ADD); |
| 626 | |
| 627 | ret = kobject_init_and_add(&ppd->sl2sc_kobj, &hfi1_sl2sc_ktype, kobj, |
| 628 | "sl2sc"); |
| 629 | if (ret) { |
| 630 | dd_dev_err(dd, |
| 631 | "Skipping sl2sc sysfs info, (err %d) port %u\n", |
| 632 | ret, port_num); |
| 633 | goto bail_sc2vl; |
| 634 | } |
| 635 | kobject_uevent(&ppd->sl2sc_kobj, KOBJ_ADD); |
| 636 | |
| 637 | ret = kobject_init_and_add(&ppd->vl2mtu_kobj, &hfi1_vl2mtu_ktype, kobj, |
| 638 | "vl2mtu"); |
| 639 | if (ret) { |
| 640 | dd_dev_err(dd, |
| 641 | "Skipping vl2mtu sysfs info, (err %d) port %u\n", |
| 642 | ret, port_num); |
| 643 | goto bail_sl2sc; |
| 644 | } |
| 645 | kobject_uevent(&ppd->vl2mtu_kobj, KOBJ_ADD); |
| 646 | |
| 647 | |
| 648 | ret = kobject_init_and_add(&ppd->pport_cc_kobj, &port_cc_ktype, |
| 649 | kobj, "CCMgtA"); |
| 650 | if (ret) { |
| 651 | dd_dev_err(dd, |
| 652 | "Skipping Congestion Control sysfs info, (err %d) port %u\n", |
| 653 | ret, port_num); |
| 654 | goto bail_vl2mtu; |
| 655 | } |
| 656 | |
| 657 | kobject_uevent(&ppd->pport_cc_kobj, KOBJ_ADD); |
| 658 | |
| 659 | ret = sysfs_create_bin_file(&ppd->pport_cc_kobj, |
| 660 | &cc_setting_bin_attr); |
| 661 | if (ret) { |
| 662 | dd_dev_err(dd, |
| 663 | "Skipping Congestion Control setting sysfs info, (err %d) port %u\n", |
| 664 | ret, port_num); |
| 665 | goto bail_cc; |
| 666 | } |
| 667 | |
| 668 | ret = sysfs_create_bin_file(&ppd->pport_cc_kobj, |
| 669 | &cc_table_bin_attr); |
| 670 | if (ret) { |
| 671 | dd_dev_err(dd, |
| 672 | "Skipping Congestion Control table sysfs info, (err %d) port %u\n", |
| 673 | ret, port_num); |
| 674 | goto bail_cc_entry_bin; |
| 675 | } |
| 676 | |
| 677 | dd_dev_info(dd, |
| 678 | "IB%u: Congestion Control Agent enabled for port %d\n", |
| 679 | dd->unit, port_num); |
| 680 | |
| 681 | return 0; |
| 682 | |
| 683 | bail_cc_entry_bin: |
| 684 | sysfs_remove_bin_file(&ppd->pport_cc_kobj, |
| 685 | &cc_setting_bin_attr); |
| 686 | bail_cc: |
| 687 | kobject_put(&ppd->pport_cc_kobj); |
| 688 | bail_vl2mtu: |
| 689 | kobject_put(&ppd->vl2mtu_kobj); |
| 690 | bail_sl2sc: |
| 691 | kobject_put(&ppd->sl2sc_kobj); |
| 692 | bail_sc2vl: |
| 693 | kobject_put(&ppd->sc2vl_kobj); |
| 694 | bail: |
| 695 | return ret; |
| 696 | } |
| 697 | |
| 698 | /* |
| 699 | * Register and create our files in /sys/class/infiniband. |
| 700 | */ |
| 701 | int hfi1_verbs_register_sysfs(struct hfi1_devdata *dd) |
| 702 | { |
Dennis Dalessandro | ec3f2c1 | 2016-01-19 14:41:33 -0800 | [diff] [blame] | 703 | struct ib_device *dev = &dd->verbs_dev.rdi.ibdev; |
Mike Marciniszyn | 7724105 | 2015-07-30 15:17:43 -0400 | [diff] [blame] | 704 | int i, ret; |
| 705 | |
| 706 | for (i = 0; i < ARRAY_SIZE(hfi1_attributes); ++i) { |
| 707 | ret = device_create_file(&dev->dev, hfi1_attributes[i]); |
| 708 | if (ret) |
| 709 | goto bail; |
| 710 | } |
| 711 | |
| 712 | return 0; |
| 713 | bail: |
| 714 | for (i = 0; i < ARRAY_SIZE(hfi1_attributes); ++i) |
| 715 | device_remove_file(&dev->dev, hfi1_attributes[i]); |
| 716 | return ret; |
| 717 | } |
| 718 | |
| 719 | /* |
| 720 | * Unregister and remove our files in /sys/class/infiniband. |
| 721 | */ |
| 722 | void hfi1_verbs_unregister_sysfs(struct hfi1_devdata *dd) |
| 723 | { |
| 724 | struct hfi1_pportdata *ppd; |
| 725 | int i; |
| 726 | |
| 727 | for (i = 0; i < dd->num_pports; i++) { |
| 728 | ppd = &dd->pport[i]; |
| 729 | |
| 730 | sysfs_remove_bin_file(&ppd->pport_cc_kobj, |
| 731 | &cc_setting_bin_attr); |
| 732 | sysfs_remove_bin_file(&ppd->pport_cc_kobj, |
| 733 | &cc_table_bin_attr); |
| 734 | kobject_put(&ppd->pport_cc_kobj); |
| 735 | kobject_put(&ppd->vl2mtu_kobj); |
| 736 | kobject_put(&ppd->sl2sc_kobj); |
| 737 | kobject_put(&ppd->sc2vl_kobj); |
| 738 | } |
| 739 | } |