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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 | /* * Copyright(c) 2015-2017 Intel Corporation. * * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. * * GPL LICENSE SUMMARY * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * BSD LICENSE * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * - Neither the name of Intel Corporation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #include <linux/ctype.h> #include "hfi.h" #include "mad.h" #include "trace.h" /* * Start of per-port congestion control structures and support code */ /* * Congestion control table size followed by table entries */ static ssize_t read_cc_table_bin(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t pos, size_t count) { int ret; struct hfi1_pportdata *ppd = container_of(kobj, struct hfi1_pportdata, pport_cc_kobj); struct cc_state *cc_state; ret = ppd->total_cct_entry * sizeof(struct ib_cc_table_entry_shadow) + sizeof(__be16); if (pos > ret) return -EINVAL; if (count > ret - pos) count = ret - pos; if (!count) return count; rcu_read_lock(); cc_state = get_cc_state(ppd); if (!cc_state) { rcu_read_unlock(); return -EINVAL; } memcpy(buf, (void *)&cc_state->cct + pos, count); rcu_read_unlock(); return count; } static void port_release(struct kobject *kobj) { /* nothing to do since memory is freed by hfi1_free_devdata() */ } static const struct bin_attribute cc_table_bin_attr = { .attr = {.name = "cc_table_bin", .mode = 0444}, .read = read_cc_table_bin, .size = PAGE_SIZE, }; /* * Congestion settings: port control, control map and an array of 16 * entries for the congestion entries - increase, timer, event log * trigger threshold and the minimum injection rate delay. */ static ssize_t read_cc_setting_bin(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t pos, size_t count) { int ret; struct hfi1_pportdata *ppd = container_of(kobj, struct hfi1_pportdata, pport_cc_kobj); struct cc_state *cc_state; ret = sizeof(struct opa_congestion_setting_attr_shadow); if (pos > ret) return -EINVAL; if (count > ret - pos) count = ret - pos; if (!count) return count; rcu_read_lock(); cc_state = get_cc_state(ppd); if (!cc_state) { rcu_read_unlock(); return -EINVAL; } memcpy(buf, (void *)&cc_state->cong_setting + pos, count); rcu_read_unlock(); return count; } static const struct bin_attribute cc_setting_bin_attr = { .attr = {.name = "cc_settings_bin", .mode = 0444}, .read = read_cc_setting_bin, .size = PAGE_SIZE, }; struct hfi1_port_attr { struct attribute attr; ssize_t (*show)(struct hfi1_pportdata *, char *); ssize_t (*store)(struct hfi1_pportdata *, const char *, size_t); }; static ssize_t cc_prescan_show(struct hfi1_pportdata *ppd, char *buf) { return sprintf(buf, "%s\n", ppd->cc_prescan ? "on" : "off"); } static ssize_t cc_prescan_store(struct hfi1_pportdata *ppd, const char *buf, size_t count) { if (!memcmp(buf, "on", 2)) ppd->cc_prescan = true; else if (!memcmp(buf, "off", 3)) ppd->cc_prescan = false; return count; } static struct hfi1_port_attr cc_prescan_attr = __ATTR(cc_prescan, 0600, cc_prescan_show, cc_prescan_store); static ssize_t cc_attr_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct hfi1_port_attr *port_attr = container_of(attr, struct hfi1_port_attr, attr); struct hfi1_pportdata *ppd = container_of(kobj, struct hfi1_pportdata, pport_cc_kobj); return port_attr->show(ppd, buf); } static ssize_t cc_attr_store(struct kobject *kobj, struct attribute *attr, const char *buf, size_t count) { struct hfi1_port_attr *port_attr = container_of(attr, struct hfi1_port_attr, attr); struct hfi1_pportdata *ppd = container_of(kobj, struct hfi1_pportdata, pport_cc_kobj); return port_attr->store(ppd, buf, count); } static const struct sysfs_ops port_cc_sysfs_ops = { .show = cc_attr_show, .store = cc_attr_store }; static struct attribute *port_cc_default_attributes[] = { &cc_prescan_attr.attr, NULL }; static struct kobj_type port_cc_ktype = { .release = port_release, .sysfs_ops = &port_cc_sysfs_ops, .default_attrs = port_cc_default_attributes }; /* Start sc2vl */ #define HFI1_SC2VL_ATTR(N) \ static struct hfi1_sc2vl_attr hfi1_sc2vl_attr_##N = { \ .attr = { .name = __stringify(N), .mode = 0444 }, \ .sc = N \ } struct hfi1_sc2vl_attr { struct attribute attr; int sc; }; HFI1_SC2VL_ATTR(0); HFI1_SC2VL_ATTR(1); HFI1_SC2VL_ATTR(2); HFI1_SC2VL_ATTR(3); HFI1_SC2VL_ATTR(4); HFI1_SC2VL_ATTR(5); HFI1_SC2VL_ATTR(6); HFI1_SC2VL_ATTR(7); HFI1_SC2VL_ATTR(8); HFI1_SC2VL_ATTR(9); HFI1_SC2VL_ATTR(10); HFI1_SC2VL_ATTR(11); HFI1_SC2VL_ATTR(12); HFI1_SC2VL_ATTR(13); HFI1_SC2VL_ATTR(14); HFI1_SC2VL_ATTR(15); HFI1_SC2VL_ATTR(16); HFI1_SC2VL_ATTR(17); HFI1_SC2VL_ATTR(18); HFI1_SC2VL_ATTR(19); HFI1_SC2VL_ATTR(20); HFI1_SC2VL_ATTR(21); HFI1_SC2VL_ATTR(22); HFI1_SC2VL_ATTR(23); HFI1_SC2VL_ATTR(24); HFI1_SC2VL_ATTR(25); HFI1_SC2VL_ATTR(26); HFI1_SC2VL_ATTR(27); HFI1_SC2VL_ATTR(28); HFI1_SC2VL_ATTR(29); HFI1_SC2VL_ATTR(30); HFI1_SC2VL_ATTR(31); static struct attribute *sc2vl_default_attributes[] = { &hfi1_sc2vl_attr_0.attr, &hfi1_sc2vl_attr_1.attr, &hfi1_sc2vl_attr_2.attr, &hfi1_sc2vl_attr_3.attr, &hfi1_sc2vl_attr_4.attr, &hfi1_sc2vl_attr_5.attr, &hfi1_sc2vl_attr_6.attr, &hfi1_sc2vl_attr_7.attr, &hfi1_sc2vl_attr_8.attr, &hfi1_sc2vl_attr_9.attr, &hfi1_sc2vl_attr_10.attr, &hfi1_sc2vl_attr_11.attr, &hfi1_sc2vl_attr_12.attr, &hfi1_sc2vl_attr_13.attr, &hfi1_sc2vl_attr_14.attr, &hfi1_sc2vl_attr_15.attr, &hfi1_sc2vl_attr_16.attr, &hfi1_sc2vl_attr_17.attr, &hfi1_sc2vl_attr_18.attr, &hfi1_sc2vl_attr_19.attr, &hfi1_sc2vl_attr_20.attr, &hfi1_sc2vl_attr_21.attr, &hfi1_sc2vl_attr_22.attr, &hfi1_sc2vl_attr_23.attr, &hfi1_sc2vl_attr_24.attr, &hfi1_sc2vl_attr_25.attr, &hfi1_sc2vl_attr_26.attr, &hfi1_sc2vl_attr_27.attr, &hfi1_sc2vl_attr_28.attr, &hfi1_sc2vl_attr_29.attr, &hfi1_sc2vl_attr_30.attr, &hfi1_sc2vl_attr_31.attr, NULL }; static ssize_t sc2vl_attr_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct hfi1_sc2vl_attr *sattr = container_of(attr, struct hfi1_sc2vl_attr, attr); struct hfi1_pportdata *ppd = container_of(kobj, struct hfi1_pportdata, sc2vl_kobj); struct hfi1_devdata *dd = ppd->dd; return sprintf(buf, "%u\n", *((u8 *)dd->sc2vl + sattr->sc)); } static const struct sysfs_ops hfi1_sc2vl_ops = { .show = sc2vl_attr_show, }; static struct kobj_type hfi1_sc2vl_ktype = { .release = port_release, .sysfs_ops = &hfi1_sc2vl_ops, .default_attrs = sc2vl_default_attributes }; /* End sc2vl */ /* Start sl2sc */ #define HFI1_SL2SC_ATTR(N) \ static struct hfi1_sl2sc_attr hfi1_sl2sc_attr_##N = { \ .attr = { .name = __stringify(N), .mode = 0444 }, \ .sl = N \ } struct hfi1_sl2sc_attr { struct attribute attr; int sl; }; HFI1_SL2SC_ATTR(0); HFI1_SL2SC_ATTR(1); HFI1_SL2SC_ATTR(2); HFI1_SL2SC_ATTR(3); HFI1_SL2SC_ATTR(4); HFI1_SL2SC_ATTR(5); HFI1_SL2SC_ATTR(6); HFI1_SL2SC_ATTR(7); HFI1_SL2SC_ATTR(8); HFI1_SL2SC_ATTR(9); HFI1_SL2SC_ATTR(10); HFI1_SL2SC_ATTR(11); HFI1_SL2SC_ATTR(12); HFI1_SL2SC_ATTR(13); HFI1_SL2SC_ATTR(14); HFI1_SL2SC_ATTR(15); HFI1_SL2SC_ATTR(16); HFI1_SL2SC_ATTR(17); HFI1_SL2SC_ATTR(18); HFI1_SL2SC_ATTR(19); HFI1_SL2SC_ATTR(20); HFI1_SL2SC_ATTR(21); HFI1_SL2SC_ATTR(22); HFI1_SL2SC_ATTR(23); HFI1_SL2SC_ATTR(24); HFI1_SL2SC_ATTR(25); HFI1_SL2SC_ATTR(26); HFI1_SL2SC_ATTR(27); HFI1_SL2SC_ATTR(28); HFI1_SL2SC_ATTR(29); HFI1_SL2SC_ATTR(30); HFI1_SL2SC_ATTR(31); static struct attribute *sl2sc_default_attributes[] = { &hfi1_sl2sc_attr_0.attr, &hfi1_sl2sc_attr_1.attr, &hfi1_sl2sc_attr_2.attr, &hfi1_sl2sc_attr_3.attr, &hfi1_sl2sc_attr_4.attr, &hfi1_sl2sc_attr_5.attr, &hfi1_sl2sc_attr_6.attr, &hfi1_sl2sc_attr_7.attr, &hfi1_sl2sc_attr_8.attr, &hfi1_sl2sc_attr_9.attr, &hfi1_sl2sc_attr_10.attr, &hfi1_sl2sc_attr_11.attr, &hfi1_sl2sc_attr_12.attr, &hfi1_sl2sc_attr_13.attr, &hfi1_sl2sc_attr_14.attr, &hfi1_sl2sc_attr_15.attr, &hfi1_sl2sc_attr_16.attr, &hfi1_sl2sc_attr_17.attr, &hfi1_sl2sc_attr_18.attr, &hfi1_sl2sc_attr_19.attr, &hfi1_sl2sc_attr_20.attr, &hfi1_sl2sc_attr_21.attr, &hfi1_sl2sc_attr_22.attr, &hfi1_sl2sc_attr_23.attr, &hfi1_sl2sc_attr_24.attr, &hfi1_sl2sc_attr_25.attr, &hfi1_sl2sc_attr_26.attr, &hfi1_sl2sc_attr_27.attr, &hfi1_sl2sc_attr_28.attr, &hfi1_sl2sc_attr_29.attr, &hfi1_sl2sc_attr_30.attr, &hfi1_sl2sc_attr_31.attr, NULL }; static ssize_t sl2sc_attr_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct hfi1_sl2sc_attr *sattr = container_of(attr, struct hfi1_sl2sc_attr, attr); struct hfi1_pportdata *ppd = container_of(kobj, struct hfi1_pportdata, sl2sc_kobj); struct hfi1_ibport *ibp = &ppd->ibport_data; return sprintf(buf, "%u\n", ibp->sl_to_sc[sattr->sl]); } static const struct sysfs_ops hfi1_sl2sc_ops = { .show = sl2sc_attr_show, }; static struct kobj_type hfi1_sl2sc_ktype = { .release = port_release, .sysfs_ops = &hfi1_sl2sc_ops, .default_attrs = sl2sc_default_attributes }; /* End sl2sc */ /* Start vl2mtu */ #define HFI1_VL2MTU_ATTR(N) \ static struct hfi1_vl2mtu_attr hfi1_vl2mtu_attr_##N = { \ .attr = { .name = __stringify(N), .mode = 0444 }, \ .vl = N \ } struct hfi1_vl2mtu_attr { struct attribute attr; int vl; }; HFI1_VL2MTU_ATTR(0); HFI1_VL2MTU_ATTR(1); HFI1_VL2MTU_ATTR(2); HFI1_VL2MTU_ATTR(3); HFI1_VL2MTU_ATTR(4); HFI1_VL2MTU_ATTR(5); HFI1_VL2MTU_ATTR(6); HFI1_VL2MTU_ATTR(7); HFI1_VL2MTU_ATTR(8); HFI1_VL2MTU_ATTR(9); HFI1_VL2MTU_ATTR(10); HFI1_VL2MTU_ATTR(11); HFI1_VL2MTU_ATTR(12); HFI1_VL2MTU_ATTR(13); HFI1_VL2MTU_ATTR(14); HFI1_VL2MTU_ATTR(15); static struct attribute *vl2mtu_default_attributes[] = { &hfi1_vl2mtu_attr_0.attr, &hfi1_vl2mtu_attr_1.attr, &hfi1_vl2mtu_attr_2.attr, &hfi1_vl2mtu_attr_3.attr, &hfi1_vl2mtu_attr_4.attr, &hfi1_vl2mtu_attr_5.attr, &hfi1_vl2mtu_attr_6.attr, &hfi1_vl2mtu_attr_7.attr, &hfi1_vl2mtu_attr_8.attr, &hfi1_vl2mtu_attr_9.attr, &hfi1_vl2mtu_attr_10.attr, &hfi1_vl2mtu_attr_11.attr, &hfi1_vl2mtu_attr_12.attr, &hfi1_vl2mtu_attr_13.attr, &hfi1_vl2mtu_attr_14.attr, &hfi1_vl2mtu_attr_15.attr, NULL }; static ssize_t vl2mtu_attr_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct hfi1_vl2mtu_attr *vlattr = container_of(attr, struct hfi1_vl2mtu_attr, attr); struct hfi1_pportdata *ppd = container_of(kobj, struct hfi1_pportdata, vl2mtu_kobj); struct hfi1_devdata *dd = ppd->dd; return sprintf(buf, "%u\n", dd->vld[vlattr->vl].mtu); } static const struct sysfs_ops hfi1_vl2mtu_ops = { .show = vl2mtu_attr_show, }; static struct kobj_type hfi1_vl2mtu_ktype = { .release = port_release, .sysfs_ops = &hfi1_vl2mtu_ops, .default_attrs = vl2mtu_default_attributes }; /* end of per-port file structures and support code */ /* * Start of per-unit (or driver, in some cases, but replicated * per unit) functions (these get a device *) */ static ssize_t hw_rev_show(struct device *device, struct device_attribute *attr, char *buf) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); return sprintf(buf, "%x\n", dd_from_dev(dev)->minrev); } static DEVICE_ATTR_RO(hw_rev); static ssize_t board_id_show(struct device *device, struct device_attribute *attr, char *buf) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); struct hfi1_devdata *dd = dd_from_dev(dev); int ret; if (!dd->boardname) ret = -EINVAL; else ret = scnprintf(buf, PAGE_SIZE, "%s\n", dd->boardname); return ret; } static DEVICE_ATTR_RO(board_id); static ssize_t boardversion_show(struct device *device, struct device_attribute *attr, char *buf) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); struct hfi1_devdata *dd = dd_from_dev(dev); /* The string printed here is already newline-terminated. */ return scnprintf(buf, PAGE_SIZE, "%s", dd->boardversion); } static DEVICE_ATTR_RO(boardversion); static ssize_t nctxts_show(struct device *device, struct device_attribute *attr, char *buf) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); struct hfi1_devdata *dd = dd_from_dev(dev); /* * Return the smaller of send and receive contexts. * Normally, user level applications would require both a send * and a receive context, so returning the smaller of the two counts * give a more accurate picture of total contexts available. */ return scnprintf(buf, PAGE_SIZE, "%u\n", min(dd->num_user_contexts, (u32)dd->sc_sizes[SC_USER].count)); } static DEVICE_ATTR_RO(nctxts); static ssize_t nfreectxts_show(struct device *device, struct device_attribute *attr, char *buf) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); struct hfi1_devdata *dd = dd_from_dev(dev); /* Return the number of free user ports (contexts) available. */ return scnprintf(buf, PAGE_SIZE, "%u\n", dd->freectxts); } static DEVICE_ATTR_RO(nfreectxts); static ssize_t serial_show(struct device *device, struct device_attribute *attr, char *buf) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); struct hfi1_devdata *dd = dd_from_dev(dev); return scnprintf(buf, PAGE_SIZE, "%s", dd->serial); } static DEVICE_ATTR_RO(serial); static ssize_t chip_reset_store(struct device *device, struct device_attribute *attr, const char *buf, size_t count) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); struct hfi1_devdata *dd = dd_from_dev(dev); int ret; if (count < 5 || memcmp(buf, "reset", 5) || !dd->diag_client) { ret = -EINVAL; goto bail; } ret = hfi1_reset_device(dd->unit); bail: return ret < 0 ? ret : count; } static DEVICE_ATTR_WO(chip_reset); /* * Convert the reported temperature from an integer (reported in * units of 0.25C) to a floating point number. */ #define temp2str(temp, buf, size, idx) \ scnprintf((buf) + (idx), (size) - (idx), "%u.%02u ", \ ((temp) >> 2), ((temp) & 0x3) * 25) /* * Dump tempsense values, in decimal, to ease shell-scripts. */ static ssize_t tempsense_show(struct device *device, struct device_attribute *attr, char *buf) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); struct hfi1_devdata *dd = dd_from_dev(dev); struct hfi1_temp temp; int ret; ret = hfi1_tempsense_rd(dd, &temp); if (!ret) { int idx = 0; idx += temp2str(temp.curr, buf, PAGE_SIZE, idx); idx += temp2str(temp.lo_lim, buf, PAGE_SIZE, idx); idx += temp2str(temp.hi_lim, buf, PAGE_SIZE, idx); idx += temp2str(temp.crit_lim, buf, PAGE_SIZE, idx); idx += scnprintf(buf + idx, PAGE_SIZE - idx, "%u %u %u\n", temp.triggers & 0x1, temp.triggers & 0x2, temp.triggers & 0x4); ret = idx; } return ret; } static DEVICE_ATTR_RO(tempsense); /* * end of per-unit (or driver, in some cases, but replicated * per unit) functions */ /* start of per-unit file structures and support code */ static struct attribute *hfi1_attributes[] = { &dev_attr_hw_rev.attr, &dev_attr_board_id.attr, &dev_attr_nctxts.attr, &dev_attr_nfreectxts.attr, &dev_attr_serial.attr, &dev_attr_boardversion.attr, &dev_attr_tempsense.attr, &dev_attr_chip_reset.attr, NULL, }; const struct attribute_group ib_hfi1_attr_group = { .attrs = hfi1_attributes, }; int hfi1_create_port_files(struct ib_device *ibdev, u8 port_num, struct kobject *kobj) { struct hfi1_pportdata *ppd; struct hfi1_devdata *dd = dd_from_ibdev(ibdev); int ret; if (!port_num || port_num > dd->num_pports) { dd_dev_err(dd, "Skipping infiniband class with invalid port %u\n", port_num); return -ENODEV; } ppd = &dd->pport[port_num - 1]; ret = kobject_init_and_add(&ppd->sc2vl_kobj, &hfi1_sc2vl_ktype, kobj, "sc2vl"); if (ret) { dd_dev_err(dd, "Skipping sc2vl sysfs info, (err %d) port %u\n", ret, port_num); /* * Based on the documentation for kobject_init_and_add(), the * caller should call kobject_put even if this call fails. */ goto bail_sc2vl; } kobject_uevent(&ppd->sc2vl_kobj, KOBJ_ADD); ret = kobject_init_and_add(&ppd->sl2sc_kobj, &hfi1_sl2sc_ktype, kobj, "sl2sc"); if (ret) { dd_dev_err(dd, "Skipping sl2sc sysfs info, (err %d) port %u\n", ret, port_num); goto bail_sl2sc; } kobject_uevent(&ppd->sl2sc_kobj, KOBJ_ADD); ret = kobject_init_and_add(&ppd->vl2mtu_kobj, &hfi1_vl2mtu_ktype, kobj, "vl2mtu"); if (ret) { dd_dev_err(dd, "Skipping vl2mtu sysfs info, (err %d) port %u\n", ret, port_num); goto bail_vl2mtu; } kobject_uevent(&ppd->vl2mtu_kobj, KOBJ_ADD); ret = kobject_init_and_add(&ppd->pport_cc_kobj, &port_cc_ktype, kobj, "CCMgtA"); if (ret) { dd_dev_err(dd, "Skipping Congestion Control sysfs info, (err %d) port %u\n", ret, port_num); goto bail_cc; } kobject_uevent(&ppd->pport_cc_kobj, KOBJ_ADD); ret = sysfs_create_bin_file(&ppd->pport_cc_kobj, &cc_setting_bin_attr); if (ret) { dd_dev_err(dd, "Skipping Congestion Control setting sysfs info, (err %d) port %u\n", ret, port_num); goto bail_cc; } ret = sysfs_create_bin_file(&ppd->pport_cc_kobj, &cc_table_bin_attr); if (ret) { dd_dev_err(dd, "Skipping Congestion Control table sysfs info, (err %d) port %u\n", ret, port_num); goto bail_cc_entry_bin; } dd_dev_info(dd, "Congestion Control Agent enabled for port %d\n", port_num); return 0; bail_cc_entry_bin: sysfs_remove_bin_file(&ppd->pport_cc_kobj, &cc_setting_bin_attr); bail_cc: kobject_put(&ppd->pport_cc_kobj); bail_vl2mtu: kobject_put(&ppd->vl2mtu_kobj); bail_sl2sc: kobject_put(&ppd->sl2sc_kobj); bail_sc2vl: kobject_put(&ppd->sc2vl_kobj); return ret; } struct sde_attribute { struct attribute attr; ssize_t (*show)(struct sdma_engine *sde, char *buf); ssize_t (*store)(struct sdma_engine *sde, const char *buf, size_t cnt); }; static ssize_t sde_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct sde_attribute *sde_attr = container_of(attr, struct sde_attribute, attr); struct sdma_engine *sde = container_of(kobj, struct sdma_engine, kobj); if (!sde_attr->show) return -EINVAL; return sde_attr->show(sde, buf); } static ssize_t sde_store(struct kobject *kobj, struct attribute *attr, const char *buf, size_t count) { struct sde_attribute *sde_attr = container_of(attr, struct sde_attribute, attr); struct sdma_engine *sde = container_of(kobj, struct sdma_engine, kobj); if (!capable(CAP_SYS_ADMIN)) return -EPERM; if (!sde_attr->store) return -EINVAL; return sde_attr->store(sde, buf, count); } static const struct sysfs_ops sde_sysfs_ops = { .show = sde_show, .store = sde_store, }; static struct kobj_type sde_ktype = { .sysfs_ops = &sde_sysfs_ops, }; #define SDE_ATTR(_name, _mode, _show, _store) \ struct sde_attribute sde_attr_##_name = \ __ATTR(_name, _mode, _show, _store) static ssize_t sde_show_cpu_to_sde_map(struct sdma_engine *sde, char *buf) { return sdma_get_cpu_to_sde_map(sde, buf); } static ssize_t sde_store_cpu_to_sde_map(struct sdma_engine *sde, const char *buf, size_t count) { return sdma_set_cpu_to_sde_map(sde, buf, count); } static ssize_t sde_show_vl(struct sdma_engine *sde, char *buf) { int vl; vl = sdma_engine_get_vl(sde); if (vl < 0) return vl; return snprintf(buf, PAGE_SIZE, "%d\n", vl); } static SDE_ATTR(cpu_list, S_IWUSR | S_IRUGO, sde_show_cpu_to_sde_map, sde_store_cpu_to_sde_map); static SDE_ATTR(vl, S_IRUGO, sde_show_vl, NULL); static struct sde_attribute *sde_attribs[] = { &sde_attr_cpu_list, &sde_attr_vl }; /* * Register and create our files in /sys/class/infiniband. */ int hfi1_verbs_register_sysfs(struct hfi1_devdata *dd) { struct ib_device *dev = &dd->verbs_dev.rdi.ibdev; struct device *class_dev = &dev->dev; int i, j, ret; for (i = 0; i < dd->num_sdma; i++) { ret = kobject_init_and_add(&dd->per_sdma[i].kobj, &sde_ktype, &class_dev->kobj, "sdma%d", i); if (ret) goto bail; for (j = 0; j < ARRAY_SIZE(sde_attribs); j++) { ret = sysfs_create_file(&dd->per_sdma[i].kobj, &sde_attribs[j]->attr); if (ret) goto bail; } } return 0; bail: /* * The function kobject_put() will call kobject_del() if the kobject * has been added successfully. The sysfs files created under the * kobject directory will also be removed during the process. */ for (; i >= 0; i--) kobject_put(&dd->per_sdma[i].kobj); return ret; } /* * Unregister and remove our files in /sys/class/infiniband. */ void hfi1_verbs_unregister_sysfs(struct hfi1_devdata *dd) { struct hfi1_pportdata *ppd; int i; /* Unwind operations in hfi1_verbs_register_sysfs() */ for (i = 0; i < dd->num_sdma; i++) kobject_put(&dd->per_sdma[i].kobj); for (i = 0; i < dd->num_pports; i++) { ppd = &dd->pport[i]; sysfs_remove_bin_file(&ppd->pport_cc_kobj, &cc_setting_bin_attr); sysfs_remove_bin_file(&ppd->pport_cc_kobj, &cc_table_bin_attr); kobject_put(&ppd->pport_cc_kobj); kobject_put(&ppd->vl2mtu_kobj); kobject_put(&ppd->sl2sc_kobj); kobject_put(&ppd->sc2vl_kobj); } } |