1 /* 2 * Copyright (c) 2012 Mellanox Technologies. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33 /*#include "core_priv.h"*/ 34 #include "mlx4_ib.h" 35 #include <linux/slab.h> 36 #include <linux/string.h> 37 #include <linux/fs.h> 38 39 #include <rdma/ib_mad.h> 40 /*show_admin_alias_guid returns the administratively assigned value of that GUID. 41 * Values returned in buf parameter string: 42 * 0 - requests opensm to assign a value. 43 * ffffffffffffffff - delete this entry. 44 * other - value assigned by administrator. 45 */ 46 static ssize_t show_admin_alias_guid(struct device *dev, 47 struct device_attribute *attr, char *buf) 48 { 49 int record_num;/*0-15*/ 50 int guid_index_in_rec; /*0 - 7*/ 51 struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry = 52 container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry); 53 struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx; 54 struct mlx4_ib_dev *mdev = port->dev; 55 56 record_num = mlx4_ib_iov_dentry->entry_num / 8 ; 57 guid_index_in_rec = mlx4_ib_iov_dentry->entry_num % 8 ; 58 59 return sprintf(buf, "%llx\n", 60 (long long)be64_to_cpu(*(__be64 *)&mdev->sriov.alias_guid. 61 ports_guid[port->num - 1]. 62 all_rec_per_port[record_num]. 63 all_recs[8 * guid_index_in_rec])); 64 } 65 66 /* store_admin_alias_guid stores the (new) administratively assigned value of that GUID. 67 * Values in buf parameter string: 68 * 0 - requests opensm to assign a value. 69 * 0xffffffffffffffff - delete this entry. 70 * other - guid value assigned by the administrator. 71 */ 72 static ssize_t store_admin_alias_guid(struct device *dev, 73 struct device_attribute *attr, 74 const char *buf, size_t count) 75 { 76 int record_num;/*0-15*/ 77 int guid_index_in_rec; /*0 - 7*/ 78 struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry = 79 container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry); 80 struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx; 81 struct mlx4_ib_dev *mdev = port->dev; 82 u64 sysadmin_ag_val; 83 84 record_num = mlx4_ib_iov_dentry->entry_num / 8; 85 guid_index_in_rec = mlx4_ib_iov_dentry->entry_num % 8; 86 if (0 == record_num && 0 == guid_index_in_rec) { 87 pr_err("GUID 0 block 0 is RO\n"); 88 return count; 89 } 90 sscanf(buf, "%llx", &sysadmin_ag_val); 91 *(__be64 *)&mdev->sriov.alias_guid.ports_guid[port->num - 1]. 92 all_rec_per_port[record_num]. 93 all_recs[GUID_REC_SIZE * guid_index_in_rec] = 94 cpu_to_be64(sysadmin_ag_val); 95 96 /* Change the state to be pending for update */ 97 mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].status 98 = MLX4_GUID_INFO_STATUS_IDLE ; 99 100 mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].method 101 = MLX4_GUID_INFO_RECORD_SET; 102 103 switch (sysadmin_ag_val) { 104 case MLX4_GUID_FOR_DELETE_VAL: 105 mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].method 106 = MLX4_GUID_INFO_RECORD_DELETE; 107 mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].ownership 108 = MLX4_GUID_SYSADMIN_ASSIGN; 109 break; 110 /* The sysadmin requests the SM to re-assign */ 111 case MLX4_NOT_SET_GUID: 112 mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].ownership 113 = MLX4_GUID_DRIVER_ASSIGN; 114 break; 115 /* The sysadmin requests a specific value.*/ 116 default: 117 mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].ownership 118 = MLX4_GUID_SYSADMIN_ASSIGN; 119 break; 120 } 121 122 /* set the record index */ 123 mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].guid_indexes 124 = mlx4_ib_get_aguid_comp_mask_from_ix(guid_index_in_rec); 125 126 mlx4_ib_init_alias_guid_work(mdev, port->num - 1); 127 128 return count; 129 } 130 131 static ssize_t show_port_gid(struct device *dev, 132 struct device_attribute *attr, 133 char *buf) 134 { 135 struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry = 136 container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry); 137 struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx; 138 struct mlx4_ib_dev *mdev = port->dev; 139 union ib_gid gid; 140 ssize_t ret; 141 142 ret = __mlx4_ib_query_gid(&mdev->ib_dev, port->num, 143 mlx4_ib_iov_dentry->entry_num, &gid, 1); 144 if (ret) 145 return ret; 146 ret = sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n", 147 be16_to_cpu(((__be16 *) gid.raw)[0]), 148 be16_to_cpu(((__be16 *) gid.raw)[1]), 149 be16_to_cpu(((__be16 *) gid.raw)[2]), 150 be16_to_cpu(((__be16 *) gid.raw)[3]), 151 be16_to_cpu(((__be16 *) gid.raw)[4]), 152 be16_to_cpu(((__be16 *) gid.raw)[5]), 153 be16_to_cpu(((__be16 *) gid.raw)[6]), 154 be16_to_cpu(((__be16 *) gid.raw)[7])); 155 return ret; 156 } 157 158 static ssize_t show_phys_port_pkey(struct device *dev, 159 struct device_attribute *attr, 160 char *buf) 161 { 162 struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry = 163 container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry); 164 struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx; 165 struct mlx4_ib_dev *mdev = port->dev; 166 u16 pkey; 167 ssize_t ret; 168 169 ret = __mlx4_ib_query_pkey(&mdev->ib_dev, port->num, 170 mlx4_ib_iov_dentry->entry_num, &pkey, 1); 171 if (ret) 172 return ret; 173 174 return sprintf(buf, "0x%04x\n", pkey); 175 } 176 177 #define DENTRY_REMOVE(_dentry) \ 178 do { \ 179 sysfs_remove_file((_dentry)->kobj, &(_dentry)->dentry.attr); \ 180 } while (0); 181 182 static int create_sysfs_entry(void *_ctx, struct mlx4_ib_iov_sysfs_attr *_dentry, 183 char *_name, struct kobject *_kobj, 184 ssize_t (*show)(struct device *dev, 185 struct device_attribute *attr, 186 char *buf), 187 ssize_t (*store)(struct device *dev, 188 struct device_attribute *attr, 189 const char *buf, size_t count) 190 ) 191 { 192 int ret = 0; 193 struct mlx4_ib_iov_sysfs_attr *vdentry = _dentry; 194 195 vdentry->ctx = _ctx; 196 vdentry->dentry.show = show; 197 vdentry->dentry.store = store; 198 sysfs_attr_init(&vdentry->dentry.attr); 199 vdentry->dentry.attr.name = vdentry->name; 200 vdentry->dentry.attr.mode = 0; 201 vdentry->kobj = _kobj; 202 snprintf(vdentry->name, 15, "%s", _name); 203 204 if (vdentry->dentry.store) 205 vdentry->dentry.attr.mode |= S_IWUSR; 206 207 if (vdentry->dentry.show) 208 vdentry->dentry.attr.mode |= S_IRUGO; 209 210 ret = sysfs_create_file(vdentry->kobj, &vdentry->dentry.attr); 211 if (ret) { 212 pr_err("failed to create %s\n", vdentry->dentry.attr.name); 213 vdentry->ctx = NULL; 214 return ret; 215 } 216 217 return ret; 218 } 219 220 int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num, 221 struct attribute *attr) 222 { 223 struct mlx4_ib_iov_port *port = &device->iov_ports[port_num - 1]; 224 int ret; 225 226 ret = sysfs_create_file(port->mcgs_parent, attr); 227 if (ret) 228 pr_err("failed to create %s\n", attr->name); 229 230 return ret; 231 } 232 233 void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num, 234 struct attribute *attr) 235 { 236 struct mlx4_ib_iov_port *port = &device->iov_ports[port_num - 1]; 237 238 sysfs_remove_file(port->mcgs_parent, attr); 239 } 240 241 static int add_port_entries(struct mlx4_ib_dev *device, int port_num) 242 { 243 int i; 244 char buff[10]; 245 struct mlx4_ib_iov_port *port = NULL; 246 int ret = 0 ; 247 struct ib_port_attr attr; 248 249 /* get the physical gid and pkey table sizes.*/ 250 ret = __mlx4_ib_query_port(&device->ib_dev, port_num, &attr, 1); 251 if (ret) 252 goto err; 253 254 port = &device->iov_ports[port_num - 1]; 255 port->dev = device; 256 port->num = port_num; 257 /* Directory structure: 258 * iov - 259 * port num - 260 * admin_guids 261 * gids (operational) 262 * mcg_table 263 */ 264 port->dentr_ar = kzalloc(sizeof (struct mlx4_ib_iov_sysfs_attr_ar), 265 GFP_KERNEL); 266 if (!port->dentr_ar) { 267 ret = -ENOMEM; 268 goto err; 269 } 270 sprintf(buff, "%d", port_num); 271 port->cur_port = kobject_create_and_add(buff, 272 kobject_get(device->ports_parent)); 273 if (!port->cur_port) { 274 ret = -ENOMEM; 275 goto kobj_create_err; 276 } 277 /* admin GUIDs */ 278 port->admin_alias_parent = kobject_create_and_add("admin_guids", 279 kobject_get(port->cur_port)); 280 if (!port->admin_alias_parent) { 281 ret = -ENOMEM; 282 goto err_admin_guids; 283 } 284 for (i = 0 ; i < attr.gid_tbl_len; i++) { 285 sprintf(buff, "%d", i); 286 port->dentr_ar->dentries[i].entry_num = i; 287 ret = create_sysfs_entry(port, &port->dentr_ar->dentries[i], 288 buff, port->admin_alias_parent, 289 show_admin_alias_guid, store_admin_alias_guid); 290 if (ret) 291 goto err_admin_alias_parent; 292 } 293 294 /* gids subdirectory (operational gids) */ 295 port->gids_parent = kobject_create_and_add("gids", 296 kobject_get(port->cur_port)); 297 if (!port->gids_parent) { 298 ret = -ENOMEM; 299 goto err_gids; 300 } 301 302 for (i = 0 ; i < attr.gid_tbl_len; i++) { 303 sprintf(buff, "%d", i); 304 port->dentr_ar->dentries[attr.gid_tbl_len + i].entry_num = i; 305 ret = create_sysfs_entry(port, 306 &port->dentr_ar->dentries[attr.gid_tbl_len + i], 307 buff, 308 port->gids_parent, show_port_gid, NULL); 309 if (ret) 310 goto err_gids_parent; 311 } 312 313 /* physical port pkey table */ 314 port->pkeys_parent = 315 kobject_create_and_add("pkeys", kobject_get(port->cur_port)); 316 if (!port->pkeys_parent) { 317 ret = -ENOMEM; 318 goto err_pkeys; 319 } 320 321 for (i = 0 ; i < attr.pkey_tbl_len; i++) { 322 sprintf(buff, "%d", i); 323 port->dentr_ar->dentries[2 * attr.gid_tbl_len + i].entry_num = i; 324 ret = create_sysfs_entry(port, 325 &port->dentr_ar->dentries[2 * attr.gid_tbl_len + i], 326 buff, port->pkeys_parent, 327 show_phys_port_pkey, NULL); 328 if (ret) 329 goto err_pkeys_parent; 330 } 331 332 /* MCGs table */ 333 port->mcgs_parent = 334 kobject_create_and_add("mcgs", kobject_get(port->cur_port)); 335 if (!port->mcgs_parent) { 336 ret = -ENOMEM; 337 goto err_mcgs; 338 } 339 return 0; 340 341 err_mcgs: 342 kobject_put(port->cur_port); 343 344 err_pkeys_parent: 345 kobject_put(port->pkeys_parent); 346 347 err_pkeys: 348 kobject_put(port->cur_port); 349 350 err_gids_parent: 351 kobject_put(port->gids_parent); 352 353 err_gids: 354 kobject_put(port->cur_port); 355 356 err_admin_alias_parent: 357 kobject_put(port->admin_alias_parent); 358 359 err_admin_guids: 360 kobject_put(port->cur_port); 361 kobject_put(port->cur_port); /* once more for create_and_add buff */ 362 363 kobj_create_err: 364 kobject_put(device->ports_parent); 365 kfree(port->dentr_ar); 366 367 err: 368 pr_err("add_port_entries FAILED: for port:%d, error: %d\n", 369 port_num, ret); 370 return ret; 371 } 372 373 static void get_name(struct mlx4_ib_dev *dev, char *name, int i, int max) 374 { 375 char base_name[9]; 376 377 /* pci_name format is: bus:dev:func -> xxxx:yy:zz.n */ 378 strlcpy(name, pci_name(dev->dev->pdev), max); 379 strncpy(base_name, name, 8); /*till xxxx:yy:*/ 380 base_name[8] = '\0'; 381 /* with no ARI only 3 last bits are used so when the fn is higher than 8 382 * need to add it to the dev num, so count in the last number will be 383 * modulo 8 */ 384 sprintf(name, "%s%.2d.%d", base_name, (i/8), (i%8)); 385 } 386 387 struct mlx4_port { 388 struct kobject kobj; 389 struct mlx4_ib_dev *dev; 390 struct attribute_group pkey_group; 391 struct attribute_group gid_group; 392 u8 port_num; 393 int slave; 394 }; 395 396 397 static void mlx4_port_release(struct kobject *kobj) 398 { 399 struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj); 400 struct attribute *a; 401 int i; 402 403 for (i = 0; (a = p->pkey_group.attrs[i]); ++i) 404 kfree(a); 405 kfree(p->pkey_group.attrs); 406 for (i = 0; (a = p->gid_group.attrs[i]); ++i) 407 kfree(a); 408 kfree(p->gid_group.attrs); 409 kfree(p); 410 } 411 412 struct port_attribute { 413 struct attribute attr; 414 ssize_t (*show)(struct mlx4_port *, struct port_attribute *, char *buf); 415 ssize_t (*store)(struct mlx4_port *, struct port_attribute *, 416 const char *buf, size_t count); 417 }; 418 419 static ssize_t port_attr_show(struct kobject *kobj, 420 struct attribute *attr, char *buf) 421 { 422 struct port_attribute *port_attr = 423 container_of(attr, struct port_attribute, attr); 424 struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj); 425 426 if (!port_attr->show) 427 return -EIO; 428 return port_attr->show(p, port_attr, buf); 429 } 430 431 static ssize_t port_attr_store(struct kobject *kobj, 432 struct attribute *attr, 433 const char *buf, size_t size) 434 { 435 struct port_attribute *port_attr = 436 container_of(attr, struct port_attribute, attr); 437 struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj); 438 439 if (!port_attr->store) 440 return -EIO; 441 return port_attr->store(p, port_attr, buf, size); 442 } 443 444 static const struct sysfs_ops port_sysfs_ops = { 445 .show = port_attr_show, 446 .store = port_attr_store, 447 }; 448 449 static struct kobj_type port_type = { 450 .release = mlx4_port_release, 451 .sysfs_ops = &port_sysfs_ops, 452 }; 453 454 struct port_table_attribute { 455 struct port_attribute attr; 456 char name[8]; 457 int index; 458 }; 459 460 static ssize_t show_port_pkey(struct mlx4_port *p, struct port_attribute *attr, 461 char *buf) 462 { 463 struct port_table_attribute *tab_attr = 464 container_of(attr, struct port_table_attribute, attr); 465 ssize_t ret = -ENODEV; 466 467 if (p->dev->pkeys.virt2phys_pkey[p->slave][p->port_num - 1][tab_attr->index] >= 468 (p->dev->dev->caps.pkey_table_len[p->port_num])) 469 ret = sprintf(buf, "none\n"); 470 else 471 ret = sprintf(buf, "%d\n", 472 p->dev->pkeys.virt2phys_pkey[p->slave] 473 [p->port_num - 1][tab_attr->index]); 474 return ret; 475 } 476 477 static ssize_t store_port_pkey(struct mlx4_port *p, struct port_attribute *attr, 478 const char *buf, size_t count) 479 { 480 struct port_table_attribute *tab_attr = 481 container_of(attr, struct port_table_attribute, attr); 482 int idx; 483 int err; 484 485 /* do not allow remapping Dom0 virtual pkey table */ 486 if (p->slave == mlx4_master_func_num(p->dev->dev)) 487 return -EINVAL; 488 489 if (!strncasecmp(buf, "no", 2)) 490 idx = p->dev->dev->phys_caps.pkey_phys_table_len[p->port_num] - 1; 491 else if (sscanf(buf, "%i", &idx) != 1 || 492 idx >= p->dev->dev->caps.pkey_table_len[p->port_num] || 493 idx < 0) 494 return -EINVAL; 495 496 p->dev->pkeys.virt2phys_pkey[p->slave][p->port_num - 1] 497 [tab_attr->index] = idx; 498 mlx4_sync_pkey_table(p->dev->dev, p->slave, p->port_num, 499 tab_attr->index, idx); 500 err = mlx4_gen_pkey_eqe(p->dev->dev, p->slave, p->port_num); 501 if (err) { 502 pr_err("mlx4_gen_pkey_eqe failed for slave %d," 503 " port %d, index %d\n", p->slave, p->port_num, idx); 504 return err; 505 } 506 return count; 507 } 508 509 static ssize_t show_port_gid_idx(struct mlx4_port *p, 510 struct port_attribute *attr, char *buf) 511 { 512 return sprintf(buf, "%d\n", p->slave); 513 } 514 515 static struct attribute ** 516 alloc_group_attrs(ssize_t (*show)(struct mlx4_port *, 517 struct port_attribute *, char *buf), 518 ssize_t (*store)(struct mlx4_port *, struct port_attribute *, 519 const char *buf, size_t count), 520 int len) 521 { 522 struct attribute **tab_attr; 523 struct port_table_attribute *element; 524 int i; 525 526 tab_attr = kcalloc(1 + len, sizeof (struct attribute *), GFP_KERNEL); 527 if (!tab_attr) 528 return NULL; 529 530 for (i = 0; i < len; i++) { 531 element = kzalloc(sizeof (struct port_table_attribute), 532 GFP_KERNEL); 533 if (!element) 534 goto err; 535 if (snprintf(element->name, sizeof (element->name), 536 "%d", i) >= sizeof (element->name)) { 537 kfree(element); 538 goto err; 539 } 540 sysfs_attr_init(&element->attr.attr); 541 element->attr.attr.name = element->name; 542 if (store) { 543 element->attr.attr.mode = S_IWUSR | S_IRUGO; 544 element->attr.store = store; 545 } else 546 element->attr.attr.mode = S_IRUGO; 547 548 element->attr.show = show; 549 element->index = i; 550 tab_attr[i] = &element->attr.attr; 551 } 552 return tab_attr; 553 554 err: 555 while (--i >= 0) 556 kfree(tab_attr[i]); 557 kfree(tab_attr); 558 return NULL; 559 } 560 561 static int add_port(struct mlx4_ib_dev *dev, int port_num, int slave) 562 { 563 struct mlx4_port *p; 564 int i; 565 int ret; 566 int is_eth = rdma_port_get_link_layer(&dev->ib_dev, port_num) == 567 IB_LINK_LAYER_ETHERNET; 568 569 p = kzalloc(sizeof *p, GFP_KERNEL); 570 if (!p) 571 return -ENOMEM; 572 573 p->dev = dev; 574 p->port_num = port_num; 575 p->slave = slave; 576 577 ret = kobject_init_and_add(&p->kobj, &port_type, 578 kobject_get(dev->dev_ports_parent[slave]), 579 "%d", port_num); 580 if (ret) 581 goto err_alloc; 582 583 p->pkey_group.name = "pkey_idx"; 584 if (is_eth) 585 p->pkey_group.attrs = 586 alloc_group_attrs(show_port_pkey, NULL, 587 dev->dev->caps.pkey_table_len[port_num]); 588 else 589 p->pkey_group.attrs = 590 alloc_group_attrs(show_port_pkey, store_port_pkey, 591 dev->dev->caps.pkey_table_len[port_num]); 592 if (!p->pkey_group.attrs) 593 goto err_alloc; 594 595 ret = sysfs_create_group(&p->kobj, &p->pkey_group); 596 if (ret) 597 goto err_free_pkey; 598 599 p->gid_group.name = "gid_idx"; 600 p->gid_group.attrs = alloc_group_attrs(show_port_gid_idx, NULL, 1); 601 if (!p->gid_group.attrs) 602 goto err_free_pkey; 603 604 ret = sysfs_create_group(&p->kobj, &p->gid_group); 605 if (ret) 606 goto err_free_gid; 607 608 list_add_tail(&p->kobj.entry, &dev->pkeys.pkey_port_list[slave]); 609 return 0; 610 611 err_free_gid: 612 kfree(p->gid_group.attrs[0]); 613 kfree(p->gid_group.attrs); 614 615 err_free_pkey: 616 for (i = 0; i < dev->dev->caps.pkey_table_len[port_num]; ++i) 617 kfree(p->pkey_group.attrs[i]); 618 kfree(p->pkey_group.attrs); 619 620 err_alloc: 621 kobject_put(dev->dev_ports_parent[slave]); 622 kfree(p); 623 return ret; 624 } 625 626 static int register_one_pkey_tree(struct mlx4_ib_dev *dev, int slave) 627 { 628 char name[32]; 629 int err; 630 int port; 631 struct kobject *p, *t; 632 struct mlx4_port *mport; 633 634 get_name(dev, name, slave, sizeof name); 635 636 dev->pkeys.device_parent[slave] = 637 kobject_create_and_add(name, kobject_get(dev->iov_parent)); 638 639 if (!dev->pkeys.device_parent[slave]) { 640 err = -ENOMEM; 641 goto fail_dev; 642 } 643 644 INIT_LIST_HEAD(&dev->pkeys.pkey_port_list[slave]); 645 646 dev->dev_ports_parent[slave] = 647 kobject_create_and_add("ports", 648 kobject_get(dev->pkeys.device_parent[slave])); 649 650 if (!dev->dev_ports_parent[slave]) { 651 err = -ENOMEM; 652 goto err_ports; 653 } 654 655 for (port = 1; port <= dev->dev->caps.num_ports; ++port) { 656 err = add_port(dev, port, slave); 657 if (err) 658 goto err_add; 659 } 660 return 0; 661 662 err_add: 663 list_for_each_entry_safe(p, t, 664 &dev->pkeys.pkey_port_list[slave], 665 entry) { 666 list_del(&p->entry); 667 mport = container_of(p, struct mlx4_port, kobj); 668 sysfs_remove_group(p, &mport->pkey_group); 669 sysfs_remove_group(p, &mport->gid_group); 670 kobject_put(p); 671 } 672 kobject_put(dev->dev_ports_parent[slave]); 673 674 err_ports: 675 kobject_put(dev->pkeys.device_parent[slave]); 676 /* extra put for the device_parent create_and_add */ 677 kobject_put(dev->pkeys.device_parent[slave]); 678 679 fail_dev: 680 kobject_put(dev->iov_parent); 681 return err; 682 } 683 684 static int register_pkey_tree(struct mlx4_ib_dev *device) 685 { 686 int i; 687 688 if (!mlx4_is_master(device->dev)) 689 return 0; 690 691 for (i = 0; i <= device->dev->num_vfs; ++i) 692 register_one_pkey_tree(device, i); 693 694 return 0; 695 } 696 697 static void unregister_pkey_tree(struct mlx4_ib_dev *device) 698 { 699 int slave; 700 struct kobject *p, *t; 701 struct mlx4_port *port; 702 703 if (!mlx4_is_master(device->dev)) 704 return; 705 706 for (slave = device->dev->num_vfs; slave >= 0; --slave) { 707 list_for_each_entry_safe(p, t, 708 &device->pkeys.pkey_port_list[slave], 709 entry) { 710 list_del(&p->entry); 711 port = container_of(p, struct mlx4_port, kobj); 712 sysfs_remove_group(p, &port->pkey_group); 713 sysfs_remove_group(p, &port->gid_group); 714 kobject_put(p); 715 kobject_put(device->dev_ports_parent[slave]); 716 } 717 kobject_put(device->dev_ports_parent[slave]); 718 kobject_put(device->pkeys.device_parent[slave]); 719 kobject_put(device->pkeys.device_parent[slave]); 720 kobject_put(device->iov_parent); 721 } 722 } 723 724 int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *dev) 725 { 726 int i; 727 int ret = 0; 728 729 if (!mlx4_is_master(dev->dev)) 730 return 0; 731 732 dev->iov_parent = 733 kobject_create_and_add("iov", 734 kobject_get(dev->ib_dev.ports_parent->parent)); 735 if (!dev->iov_parent) { 736 ret = -ENOMEM; 737 goto err; 738 } 739 dev->ports_parent = 740 kobject_create_and_add("ports", 741 kobject_get(dev->iov_parent)); 742 if (!dev->iov_parent) { 743 ret = -ENOMEM; 744 goto err_ports; 745 } 746 747 for (i = 1; i <= dev->ib_dev.phys_port_cnt; ++i) { 748 ret = add_port_entries(dev, i); 749 if (ret) 750 goto err_add_entries; 751 } 752 753 ret = register_pkey_tree(dev); 754 if (ret) 755 goto err_add_entries; 756 return 0; 757 758 err_add_entries: 759 kobject_put(dev->ports_parent); 760 761 err_ports: 762 kobject_put(dev->iov_parent); 763 err: 764 kobject_put(dev->ib_dev.ports_parent->parent); 765 pr_err("mlx4_ib_device_register_sysfs error (%d)\n", ret); 766 return ret; 767 } 768 769 static void unregister_alias_guid_tree(struct mlx4_ib_dev *device) 770 { 771 struct mlx4_ib_iov_port *p; 772 int i; 773 774 if (!mlx4_is_master(device->dev)) 775 return; 776 777 for (i = 0; i < device->dev->caps.num_ports; i++) { 778 p = &device->iov_ports[i]; 779 kobject_put(p->admin_alias_parent); 780 kobject_put(p->gids_parent); 781 kobject_put(p->pkeys_parent); 782 kobject_put(p->mcgs_parent); 783 kobject_put(p->cur_port); 784 kobject_put(p->cur_port); 785 kobject_put(p->cur_port); 786 kobject_put(p->cur_port); 787 kobject_put(p->cur_port); 788 kobject_put(p->dev->ports_parent); 789 kfree(p->dentr_ar); 790 } 791 } 792 793 void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device) 794 { 795 unregister_alias_guid_tree(device); 796 unregister_pkey_tree(device); 797 kobject_put(device->ports_parent); 798 kobject_put(device->iov_parent); 799 kobject_put(device->iov_parent); 800 kobject_put(device->ib_dev.ports_parent->parent); 801 } 802