1 /* 2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. 3 * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. 4 * All rights reserved. 5 * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved. 6 * 7 * This software is available to you under a choice of one of two 8 * licenses. You may choose to be licensed under the terms of the GNU 9 * General Public License (GPL) Version 2, available from the file 10 * COPYING in the main directory of this source tree, or the 11 * OpenIB.org BSD license below: 12 * 13 * Redistribution and use in source and binary forms, with or 14 * without modification, are permitted provided that the following 15 * conditions are met: 16 * 17 * - Redistributions of source code must retain the above 18 * copyright notice, this list of conditions and the following 19 * disclaimer. 20 * 21 * - Redistributions in binary form must reproduce the above 22 * copyright notice, this list of conditions and the following 23 * disclaimer in the documentation and/or other materials 24 * provided with the distribution. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 33 * SOFTWARE. 34 */ 35 36 #include <linux/sched.h> 37 #include <linux/pci.h> 38 #include <linux/errno.h> 39 #include <linux/kernel.h> 40 #include <linux/io.h> 41 #include <linux/slab.h> 42 #include <linux/mlx4/cmd.h> 43 #include <linux/mlx4/qp.h> 44 #include <linux/if_ether.h> 45 #include <linux/etherdevice.h> 46 47 #include "mlx4.h" 48 #include "fw.h" 49 #include "mlx4_stats.h" 50 51 #define MLX4_MAC_VALID (1ull << 63) 52 #define MLX4_PF_COUNTERS_PER_PORT 2 53 #define MLX4_VF_COUNTERS_PER_PORT 1 54 55 struct mac_res { 56 struct list_head list; 57 u64 mac; 58 int ref_count; 59 u8 smac_index; 60 u8 port; 61 }; 62 63 struct vlan_res { 64 struct list_head list; 65 u16 vlan; 66 int ref_count; 67 int vlan_index; 68 u8 port; 69 }; 70 71 struct res_common { 72 struct list_head list; 73 struct rb_node node; 74 u64 res_id; 75 int owner; 76 int state; 77 int from_state; 78 int to_state; 79 int removing; 80 }; 81 82 enum { 83 RES_ANY_BUSY = 1 84 }; 85 86 struct res_gid { 87 struct list_head list; 88 u8 gid[16]; 89 enum mlx4_protocol prot; 90 enum mlx4_steer_type steer; 91 u64 reg_id; 92 }; 93 94 enum res_qp_states { 95 RES_QP_BUSY = RES_ANY_BUSY, 96 97 /* QP number was allocated */ 98 RES_QP_RESERVED, 99 100 /* ICM memory for QP context was mapped */ 101 RES_QP_MAPPED, 102 103 /* QP is in hw ownership */ 104 RES_QP_HW 105 }; 106 107 struct res_qp { 108 struct res_common com; 109 struct res_mtt *mtt; 110 struct res_cq *rcq; 111 struct res_cq *scq; 112 struct res_srq *srq; 113 struct list_head mcg_list; 114 spinlock_t mcg_spl; 115 int local_qpn; 116 atomic_t ref_count; 117 u32 qpc_flags; 118 /* saved qp params before VST enforcement in order to restore on VGT */ 119 u8 sched_queue; 120 __be32 param3; 121 u8 vlan_control; 122 u8 fvl_rx; 123 u8 pri_path_fl; 124 u8 vlan_index; 125 u8 feup; 126 }; 127 128 enum res_mtt_states { 129 RES_MTT_BUSY = RES_ANY_BUSY, 130 RES_MTT_ALLOCATED, 131 }; 132 133 static inline const char *mtt_states_str(enum res_mtt_states state) 134 { 135 switch (state) { 136 case RES_MTT_BUSY: return "RES_MTT_BUSY"; 137 case RES_MTT_ALLOCATED: return "RES_MTT_ALLOCATED"; 138 default: return "Unknown"; 139 } 140 } 141 142 struct res_mtt { 143 struct res_common com; 144 int order; 145 atomic_t ref_count; 146 }; 147 148 enum res_mpt_states { 149 RES_MPT_BUSY = RES_ANY_BUSY, 150 RES_MPT_RESERVED, 151 RES_MPT_MAPPED, 152 RES_MPT_HW, 153 }; 154 155 struct res_mpt { 156 struct res_common com; 157 struct res_mtt *mtt; 158 int key; 159 }; 160 161 enum res_eq_states { 162 RES_EQ_BUSY = RES_ANY_BUSY, 163 RES_EQ_RESERVED, 164 RES_EQ_HW, 165 }; 166 167 struct res_eq { 168 struct res_common com; 169 struct res_mtt *mtt; 170 }; 171 172 enum res_cq_states { 173 RES_CQ_BUSY = RES_ANY_BUSY, 174 RES_CQ_ALLOCATED, 175 RES_CQ_HW, 176 }; 177 178 struct res_cq { 179 struct res_common com; 180 struct res_mtt *mtt; 181 atomic_t ref_count; 182 }; 183 184 enum res_srq_states { 185 RES_SRQ_BUSY = RES_ANY_BUSY, 186 RES_SRQ_ALLOCATED, 187 RES_SRQ_HW, 188 }; 189 190 struct res_srq { 191 struct res_common com; 192 struct res_mtt *mtt; 193 struct res_cq *cq; 194 atomic_t ref_count; 195 }; 196 197 enum res_counter_states { 198 RES_COUNTER_BUSY = RES_ANY_BUSY, 199 RES_COUNTER_ALLOCATED, 200 }; 201 202 struct res_counter { 203 struct res_common com; 204 int port; 205 }; 206 207 enum res_xrcdn_states { 208 RES_XRCD_BUSY = RES_ANY_BUSY, 209 RES_XRCD_ALLOCATED, 210 }; 211 212 struct res_xrcdn { 213 struct res_common com; 214 int port; 215 }; 216 217 enum res_fs_rule_states { 218 RES_FS_RULE_BUSY = RES_ANY_BUSY, 219 RES_FS_RULE_ALLOCATED, 220 }; 221 222 struct res_fs_rule { 223 struct res_common com; 224 int qpn; 225 /* VF DMFS mbox with port flipped */ 226 void *mirr_mbox; 227 /* > 0 --> apply mirror when getting into HA mode */ 228 /* = 0 --> un-apply mirror when getting out of HA mode */ 229 u32 mirr_mbox_size; 230 struct list_head mirr_list; 231 u64 mirr_rule_id; 232 }; 233 234 static void *res_tracker_lookup(struct rb_root *root, u64 res_id) 235 { 236 struct rb_node *node = root->rb_node; 237 238 while (node) { 239 struct res_common *res = container_of(node, struct res_common, 240 node); 241 242 if (res_id < res->res_id) 243 node = node->rb_left; 244 else if (res_id > res->res_id) 245 node = node->rb_right; 246 else 247 return res; 248 } 249 return NULL; 250 } 251 252 static int res_tracker_insert(struct rb_root *root, struct res_common *res) 253 { 254 struct rb_node **new = &(root->rb_node), *parent = NULL; 255 256 /* Figure out where to put new node */ 257 while (*new) { 258 struct res_common *this = container_of(*new, struct res_common, 259 node); 260 261 parent = *new; 262 if (res->res_id < this->res_id) 263 new = &((*new)->rb_left); 264 else if (res->res_id > this->res_id) 265 new = &((*new)->rb_right); 266 else 267 return -EEXIST; 268 } 269 270 /* Add new node and rebalance tree. */ 271 rb_link_node(&res->node, parent, new); 272 rb_insert_color(&res->node, root); 273 274 return 0; 275 } 276 277 enum qp_transition { 278 QP_TRANS_INIT2RTR, 279 QP_TRANS_RTR2RTS, 280 QP_TRANS_RTS2RTS, 281 QP_TRANS_SQERR2RTS, 282 QP_TRANS_SQD2SQD, 283 QP_TRANS_SQD2RTS 284 }; 285 286 /* For Debug uses */ 287 static const char *resource_str(enum mlx4_resource rt) 288 { 289 switch (rt) { 290 case RES_QP: return "RES_QP"; 291 case RES_CQ: return "RES_CQ"; 292 case RES_SRQ: return "RES_SRQ"; 293 case RES_MPT: return "RES_MPT"; 294 case RES_MTT: return "RES_MTT"; 295 case RES_MAC: return "RES_MAC"; 296 case RES_VLAN: return "RES_VLAN"; 297 case RES_EQ: return "RES_EQ"; 298 case RES_COUNTER: return "RES_COUNTER"; 299 case RES_FS_RULE: return "RES_FS_RULE"; 300 case RES_XRCD: return "RES_XRCD"; 301 default: return "Unknown resource type !!!"; 302 }; 303 } 304 305 static void rem_slave_vlans(struct mlx4_dev *dev, int slave); 306 static inline int mlx4_grant_resource(struct mlx4_dev *dev, int slave, 307 enum mlx4_resource res_type, int count, 308 int port) 309 { 310 struct mlx4_priv *priv = mlx4_priv(dev); 311 struct resource_allocator *res_alloc = 312 &priv->mfunc.master.res_tracker.res_alloc[res_type]; 313 int err = -EINVAL; 314 int allocated, free, reserved, guaranteed, from_free; 315 int from_rsvd; 316 317 if (slave > dev->persist->num_vfs) 318 return -EINVAL; 319 320 spin_lock(&res_alloc->alloc_lock); 321 allocated = (port > 0) ? 322 res_alloc->allocated[(port - 1) * 323 (dev->persist->num_vfs + 1) + slave] : 324 res_alloc->allocated[slave]; 325 free = (port > 0) ? res_alloc->res_port_free[port - 1] : 326 res_alloc->res_free; 327 reserved = (port > 0) ? res_alloc->res_port_rsvd[port - 1] : 328 res_alloc->res_reserved; 329 guaranteed = res_alloc->guaranteed[slave]; 330 331 if (allocated + count > res_alloc->quota[slave]) { 332 mlx4_warn(dev, "VF %d port %d res %s: quota exceeded, count %d alloc %d quota %d\n", 333 slave, port, resource_str(res_type), count, 334 allocated, res_alloc->quota[slave]); 335 goto out; 336 } 337 338 if (allocated + count <= guaranteed) { 339 err = 0; 340 from_rsvd = count; 341 } else { 342 /* portion may need to be obtained from free area */ 343 if (guaranteed - allocated > 0) 344 from_free = count - (guaranteed - allocated); 345 else 346 from_free = count; 347 348 from_rsvd = count - from_free; 349 350 if (free - from_free >= reserved) 351 err = 0; 352 else 353 mlx4_warn(dev, "VF %d port %d res %s: free pool empty, free %d from_free %d rsvd %d\n", 354 slave, port, resource_str(res_type), free, 355 from_free, reserved); 356 } 357 358 if (!err) { 359 /* grant the request */ 360 if (port > 0) { 361 res_alloc->allocated[(port - 1) * 362 (dev->persist->num_vfs + 1) + slave] += count; 363 res_alloc->res_port_free[port - 1] -= count; 364 res_alloc->res_port_rsvd[port - 1] -= from_rsvd; 365 } else { 366 res_alloc->allocated[slave] += count; 367 res_alloc->res_free -= count; 368 res_alloc->res_reserved -= from_rsvd; 369 } 370 } 371 372 out: 373 spin_unlock(&res_alloc->alloc_lock); 374 return err; 375 } 376 377 static inline void mlx4_release_resource(struct mlx4_dev *dev, int slave, 378 enum mlx4_resource res_type, int count, 379 int port) 380 { 381 struct mlx4_priv *priv = mlx4_priv(dev); 382 struct resource_allocator *res_alloc = 383 &priv->mfunc.master.res_tracker.res_alloc[res_type]; 384 int allocated, guaranteed, from_rsvd; 385 386 if (slave > dev->persist->num_vfs) 387 return; 388 389 spin_lock(&res_alloc->alloc_lock); 390 391 allocated = (port > 0) ? 392 res_alloc->allocated[(port - 1) * 393 (dev->persist->num_vfs + 1) + slave] : 394 res_alloc->allocated[slave]; 395 guaranteed = res_alloc->guaranteed[slave]; 396 397 if (allocated - count >= guaranteed) { 398 from_rsvd = 0; 399 } else { 400 /* portion may need to be returned to reserved area */ 401 if (allocated - guaranteed > 0) 402 from_rsvd = count - (allocated - guaranteed); 403 else 404 from_rsvd = count; 405 } 406 407 if (port > 0) { 408 res_alloc->allocated[(port - 1) * 409 (dev->persist->num_vfs + 1) + slave] -= count; 410 res_alloc->res_port_free[port - 1] += count; 411 res_alloc->res_port_rsvd[port - 1] += from_rsvd; 412 } else { 413 res_alloc->allocated[slave] -= count; 414 res_alloc->res_free += count; 415 res_alloc->res_reserved += from_rsvd; 416 } 417 418 spin_unlock(&res_alloc->alloc_lock); 419 return; 420 } 421 422 static inline void initialize_res_quotas(struct mlx4_dev *dev, 423 struct resource_allocator *res_alloc, 424 enum mlx4_resource res_type, 425 int vf, int num_instances) 426 { 427 res_alloc->guaranteed[vf] = num_instances / 428 (2 * (dev->persist->num_vfs + 1)); 429 res_alloc->quota[vf] = (num_instances / 2) + res_alloc->guaranteed[vf]; 430 if (vf == mlx4_master_func_num(dev)) { 431 res_alloc->res_free = num_instances; 432 if (res_type == RES_MTT) { 433 /* reserved mtts will be taken out of the PF allocation */ 434 res_alloc->res_free += dev->caps.reserved_mtts; 435 res_alloc->guaranteed[vf] += dev->caps.reserved_mtts; 436 res_alloc->quota[vf] += dev->caps.reserved_mtts; 437 } 438 } 439 } 440 441 void mlx4_init_quotas(struct mlx4_dev *dev) 442 { 443 struct mlx4_priv *priv = mlx4_priv(dev); 444 int pf; 445 446 /* quotas for VFs are initialized in mlx4_slave_cap */ 447 if (mlx4_is_slave(dev)) 448 return; 449 450 if (!mlx4_is_mfunc(dev)) { 451 dev->quotas.qp = dev->caps.num_qps - dev->caps.reserved_qps - 452 mlx4_num_reserved_sqps(dev); 453 dev->quotas.cq = dev->caps.num_cqs - dev->caps.reserved_cqs; 454 dev->quotas.srq = dev->caps.num_srqs - dev->caps.reserved_srqs; 455 dev->quotas.mtt = dev->caps.num_mtts - dev->caps.reserved_mtts; 456 dev->quotas.mpt = dev->caps.num_mpts - dev->caps.reserved_mrws; 457 return; 458 } 459 460 pf = mlx4_master_func_num(dev); 461 dev->quotas.qp = 462 priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[pf]; 463 dev->quotas.cq = 464 priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[pf]; 465 dev->quotas.srq = 466 priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[pf]; 467 dev->quotas.mtt = 468 priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[pf]; 469 dev->quotas.mpt = 470 priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[pf]; 471 } 472 473 static int get_max_gauranteed_vfs_counter(struct mlx4_dev *dev) 474 { 475 /* reduce the sink counter */ 476 return (dev->caps.max_counters - 1 - 477 (MLX4_PF_COUNTERS_PER_PORT * MLX4_MAX_PORTS)) 478 / MLX4_MAX_PORTS; 479 } 480 481 int mlx4_init_resource_tracker(struct mlx4_dev *dev) 482 { 483 struct mlx4_priv *priv = mlx4_priv(dev); 484 int i, j; 485 int t; 486 int max_vfs_guarantee_counter = get_max_gauranteed_vfs_counter(dev); 487 488 priv->mfunc.master.res_tracker.slave_list = 489 kzalloc(dev->num_slaves * sizeof(struct slave_list), 490 GFP_KERNEL); 491 if (!priv->mfunc.master.res_tracker.slave_list) 492 return -ENOMEM; 493 494 for (i = 0 ; i < dev->num_slaves; i++) { 495 for (t = 0; t < MLX4_NUM_OF_RESOURCE_TYPE; ++t) 496 INIT_LIST_HEAD(&priv->mfunc.master.res_tracker. 497 slave_list[i].res_list[t]); 498 mutex_init(&priv->mfunc.master.res_tracker.slave_list[i].mutex); 499 } 500 501 mlx4_dbg(dev, "Started init_resource_tracker: %ld slaves\n", 502 dev->num_slaves); 503 for (i = 0 ; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) 504 priv->mfunc.master.res_tracker.res_tree[i] = RB_ROOT; 505 506 for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) { 507 struct resource_allocator *res_alloc = 508 &priv->mfunc.master.res_tracker.res_alloc[i]; 509 res_alloc->quota = kmalloc((dev->persist->num_vfs + 1) * 510 sizeof(int), GFP_KERNEL); 511 res_alloc->guaranteed = kmalloc((dev->persist->num_vfs + 1) * 512 sizeof(int), GFP_KERNEL); 513 if (i == RES_MAC || i == RES_VLAN) 514 res_alloc->allocated = kzalloc(MLX4_MAX_PORTS * 515 (dev->persist->num_vfs 516 + 1) * 517 sizeof(int), GFP_KERNEL); 518 else 519 res_alloc->allocated = kzalloc((dev->persist-> 520 num_vfs + 1) * 521 sizeof(int), GFP_KERNEL); 522 /* Reduce the sink counter */ 523 if (i == RES_COUNTER) 524 res_alloc->res_free = dev->caps.max_counters - 1; 525 526 if (!res_alloc->quota || !res_alloc->guaranteed || 527 !res_alloc->allocated) 528 goto no_mem_err; 529 530 spin_lock_init(&res_alloc->alloc_lock); 531 for (t = 0; t < dev->persist->num_vfs + 1; t++) { 532 struct mlx4_active_ports actv_ports = 533 mlx4_get_active_ports(dev, t); 534 switch (i) { 535 case RES_QP: 536 initialize_res_quotas(dev, res_alloc, RES_QP, 537 t, dev->caps.num_qps - 538 dev->caps.reserved_qps - 539 mlx4_num_reserved_sqps(dev)); 540 break; 541 case RES_CQ: 542 initialize_res_quotas(dev, res_alloc, RES_CQ, 543 t, dev->caps.num_cqs - 544 dev->caps.reserved_cqs); 545 break; 546 case RES_SRQ: 547 initialize_res_quotas(dev, res_alloc, RES_SRQ, 548 t, dev->caps.num_srqs - 549 dev->caps.reserved_srqs); 550 break; 551 case RES_MPT: 552 initialize_res_quotas(dev, res_alloc, RES_MPT, 553 t, dev->caps.num_mpts - 554 dev->caps.reserved_mrws); 555 break; 556 case RES_MTT: 557 initialize_res_quotas(dev, res_alloc, RES_MTT, 558 t, dev->caps.num_mtts - 559 dev->caps.reserved_mtts); 560 break; 561 case RES_MAC: 562 if (t == mlx4_master_func_num(dev)) { 563 int max_vfs_pport = 0; 564 /* Calculate the max vfs per port for */ 565 /* both ports. */ 566 for (j = 0; j < dev->caps.num_ports; 567 j++) { 568 struct mlx4_slaves_pport slaves_pport = 569 mlx4_phys_to_slaves_pport(dev, j + 1); 570 unsigned current_slaves = 571 bitmap_weight(slaves_pport.slaves, 572 dev->caps.num_ports) - 1; 573 if (max_vfs_pport < current_slaves) 574 max_vfs_pport = 575 current_slaves; 576 } 577 res_alloc->quota[t] = 578 MLX4_MAX_MAC_NUM - 579 2 * max_vfs_pport; 580 res_alloc->guaranteed[t] = 2; 581 for (j = 0; j < MLX4_MAX_PORTS; j++) 582 res_alloc->res_port_free[j] = 583 MLX4_MAX_MAC_NUM; 584 } else { 585 res_alloc->quota[t] = MLX4_MAX_MAC_NUM; 586 res_alloc->guaranteed[t] = 2; 587 } 588 break; 589 case RES_VLAN: 590 if (t == mlx4_master_func_num(dev)) { 591 res_alloc->quota[t] = MLX4_MAX_VLAN_NUM; 592 res_alloc->guaranteed[t] = MLX4_MAX_VLAN_NUM / 2; 593 for (j = 0; j < MLX4_MAX_PORTS; j++) 594 res_alloc->res_port_free[j] = 595 res_alloc->quota[t]; 596 } else { 597 res_alloc->quota[t] = MLX4_MAX_VLAN_NUM / 2; 598 res_alloc->guaranteed[t] = 0; 599 } 600 break; 601 case RES_COUNTER: 602 res_alloc->quota[t] = dev->caps.max_counters; 603 if (t == mlx4_master_func_num(dev)) 604 res_alloc->guaranteed[t] = 605 MLX4_PF_COUNTERS_PER_PORT * 606 MLX4_MAX_PORTS; 607 else if (t <= max_vfs_guarantee_counter) 608 res_alloc->guaranteed[t] = 609 MLX4_VF_COUNTERS_PER_PORT * 610 MLX4_MAX_PORTS; 611 else 612 res_alloc->guaranteed[t] = 0; 613 res_alloc->res_free -= res_alloc->guaranteed[t]; 614 break; 615 default: 616 break; 617 } 618 if (i == RES_MAC || i == RES_VLAN) { 619 for (j = 0; j < dev->caps.num_ports; j++) 620 if (test_bit(j, actv_ports.ports)) 621 res_alloc->res_port_rsvd[j] += 622 res_alloc->guaranteed[t]; 623 } else { 624 res_alloc->res_reserved += res_alloc->guaranteed[t]; 625 } 626 } 627 } 628 spin_lock_init(&priv->mfunc.master.res_tracker.lock); 629 return 0; 630 631 no_mem_err: 632 for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) { 633 kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated); 634 priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL; 635 kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed); 636 priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL; 637 kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota); 638 priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL; 639 } 640 return -ENOMEM; 641 } 642 643 void mlx4_free_resource_tracker(struct mlx4_dev *dev, 644 enum mlx4_res_tracker_free_type type) 645 { 646 struct mlx4_priv *priv = mlx4_priv(dev); 647 int i; 648 649 if (priv->mfunc.master.res_tracker.slave_list) { 650 if (type != RES_TR_FREE_STRUCTS_ONLY) { 651 for (i = 0; i < dev->num_slaves; i++) { 652 if (type == RES_TR_FREE_ALL || 653 dev->caps.function != i) 654 mlx4_delete_all_resources_for_slave(dev, i); 655 } 656 /* free master's vlans */ 657 i = dev->caps.function; 658 mlx4_reset_roce_gids(dev, i); 659 mutex_lock(&priv->mfunc.master.res_tracker.slave_list[i].mutex); 660 rem_slave_vlans(dev, i); 661 mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[i].mutex); 662 } 663 664 if (type != RES_TR_FREE_SLAVES_ONLY) { 665 for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) { 666 kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated); 667 priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL; 668 kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed); 669 priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL; 670 kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota); 671 priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL; 672 } 673 kfree(priv->mfunc.master.res_tracker.slave_list); 674 priv->mfunc.master.res_tracker.slave_list = NULL; 675 } 676 } 677 } 678 679 static void update_pkey_index(struct mlx4_dev *dev, int slave, 680 struct mlx4_cmd_mailbox *inbox) 681 { 682 u8 sched = *(u8 *)(inbox->buf + 64); 683 u8 orig_index = *(u8 *)(inbox->buf + 35); 684 u8 new_index; 685 struct mlx4_priv *priv = mlx4_priv(dev); 686 int port; 687 688 port = (sched >> 6 & 1) + 1; 689 690 new_index = priv->virt2phys_pkey[slave][port - 1][orig_index]; 691 *(u8 *)(inbox->buf + 35) = new_index; 692 } 693 694 static void update_gid(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *inbox, 695 u8 slave) 696 { 697 struct mlx4_qp_context *qp_ctx = inbox->buf + 8; 698 enum mlx4_qp_optpar optpar = be32_to_cpu(*(__be32 *) inbox->buf); 699 u32 ts = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff; 700 int port; 701 702 if (MLX4_QP_ST_UD == ts) { 703 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1; 704 if (mlx4_is_eth(dev, port)) 705 qp_ctx->pri_path.mgid_index = 706 mlx4_get_base_gid_ix(dev, slave, port) | 0x80; 707 else 708 qp_ctx->pri_path.mgid_index = slave | 0x80; 709 710 } else if (MLX4_QP_ST_RC == ts || MLX4_QP_ST_XRC == ts || MLX4_QP_ST_UC == ts) { 711 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH) { 712 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1; 713 if (mlx4_is_eth(dev, port)) { 714 qp_ctx->pri_path.mgid_index += 715 mlx4_get_base_gid_ix(dev, slave, port); 716 qp_ctx->pri_path.mgid_index &= 0x7f; 717 } else { 718 qp_ctx->pri_path.mgid_index = slave & 0x7F; 719 } 720 } 721 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) { 722 port = (qp_ctx->alt_path.sched_queue >> 6 & 1) + 1; 723 if (mlx4_is_eth(dev, port)) { 724 qp_ctx->alt_path.mgid_index += 725 mlx4_get_base_gid_ix(dev, slave, port); 726 qp_ctx->alt_path.mgid_index &= 0x7f; 727 } else { 728 qp_ctx->alt_path.mgid_index = slave & 0x7F; 729 } 730 } 731 } 732 } 733 734 static int handle_counter(struct mlx4_dev *dev, struct mlx4_qp_context *qpc, 735 u8 slave, int port); 736 737 static int update_vport_qp_param(struct mlx4_dev *dev, 738 struct mlx4_cmd_mailbox *inbox, 739 u8 slave, u32 qpn) 740 { 741 struct mlx4_qp_context *qpc = inbox->buf + 8; 742 struct mlx4_vport_oper_state *vp_oper; 743 struct mlx4_priv *priv; 744 u32 qp_type; 745 int port, err = 0; 746 747 port = (qpc->pri_path.sched_queue & 0x40) ? 2 : 1; 748 priv = mlx4_priv(dev); 749 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 750 qp_type = (be32_to_cpu(qpc->flags) >> 16) & 0xff; 751 752 err = handle_counter(dev, qpc, slave, port); 753 if (err) 754 goto out; 755 756 if (MLX4_VGT != vp_oper->state.default_vlan) { 757 /* the reserved QPs (special, proxy, tunnel) 758 * do not operate over vlans 759 */ 760 if (mlx4_is_qp_reserved(dev, qpn)) 761 return 0; 762 763 /* force strip vlan by clear vsd, MLX QP refers to Raw Ethernet */ 764 if (qp_type == MLX4_QP_ST_UD || 765 (qp_type == MLX4_QP_ST_MLX && mlx4_is_eth(dev, port))) { 766 if (dev->caps.bmme_flags & MLX4_BMME_FLAG_VSD_INIT2RTR) { 767 *(__be32 *)inbox->buf = 768 cpu_to_be32(be32_to_cpu(*(__be32 *)inbox->buf) | 769 MLX4_QP_OPTPAR_VLAN_STRIPPING); 770 qpc->param3 &= ~cpu_to_be32(MLX4_STRIP_VLAN); 771 } else { 772 struct mlx4_update_qp_params params = {.flags = 0}; 773 774 err = mlx4_update_qp(dev, qpn, MLX4_UPDATE_QP_VSD, ¶ms); 775 if (err) 776 goto out; 777 } 778 } 779 780 /* preserve IF_COUNTER flag */ 781 qpc->pri_path.vlan_control &= 782 MLX4_CTRL_ETH_SRC_CHECK_IF_COUNTER; 783 if (vp_oper->state.link_state == IFLA_VF_LINK_STATE_DISABLE && 784 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP) { 785 qpc->pri_path.vlan_control |= 786 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | 787 MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED | 788 MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED | 789 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED | 790 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED | 791 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED; 792 } else if (0 != vp_oper->state.default_vlan) { 793 if (vp_oper->state.vlan_proto == htons(ETH_P_8021AD)) { 794 /* vst QinQ should block untagged on TX, 795 * but cvlan is in payload and phv is set so 796 * hw see it as untagged. Block tagged instead. 797 */ 798 qpc->pri_path.vlan_control |= 799 MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED | 800 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | 801 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED | 802 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED; 803 } else { /* vst 802.1Q */ 804 qpc->pri_path.vlan_control |= 805 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | 806 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED | 807 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED; 808 } 809 } else { /* priority tagged */ 810 qpc->pri_path.vlan_control |= 811 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | 812 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED; 813 } 814 815 qpc->pri_path.fvl_rx |= MLX4_FVL_RX_FORCE_ETH_VLAN; 816 qpc->pri_path.vlan_index = vp_oper->vlan_idx; 817 qpc->pri_path.fl |= MLX4_FL_ETH_HIDE_CQE_VLAN; 818 if (vp_oper->state.vlan_proto == htons(ETH_P_8021AD)) 819 qpc->pri_path.fl |= MLX4_FL_SV; 820 else 821 qpc->pri_path.fl |= MLX4_FL_CV; 822 qpc->pri_path.feup |= MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN; 823 qpc->pri_path.sched_queue &= 0xC7; 824 qpc->pri_path.sched_queue |= (vp_oper->state.default_qos) << 3; 825 qpc->qos_vport = vp_oper->state.qos_vport; 826 } 827 if (vp_oper->state.spoofchk) { 828 qpc->pri_path.feup |= MLX4_FSM_FORCE_ETH_SRC_MAC; 829 qpc->pri_path.grh_mylmc = (0x80 & qpc->pri_path.grh_mylmc) + vp_oper->mac_idx; 830 } 831 out: 832 return err; 833 } 834 835 static int mpt_mask(struct mlx4_dev *dev) 836 { 837 return dev->caps.num_mpts - 1; 838 } 839 840 static void *find_res(struct mlx4_dev *dev, u64 res_id, 841 enum mlx4_resource type) 842 { 843 struct mlx4_priv *priv = mlx4_priv(dev); 844 845 return res_tracker_lookup(&priv->mfunc.master.res_tracker.res_tree[type], 846 res_id); 847 } 848 849 static int get_res(struct mlx4_dev *dev, int slave, u64 res_id, 850 enum mlx4_resource type, 851 void *res) 852 { 853 struct res_common *r; 854 int err = 0; 855 856 spin_lock_irq(mlx4_tlock(dev)); 857 r = find_res(dev, res_id, type); 858 if (!r) { 859 err = -ENONET; 860 goto exit; 861 } 862 863 if (r->state == RES_ANY_BUSY) { 864 err = -EBUSY; 865 goto exit; 866 } 867 868 if (r->owner != slave) { 869 err = -EPERM; 870 goto exit; 871 } 872 873 r->from_state = r->state; 874 r->state = RES_ANY_BUSY; 875 876 if (res) 877 *((struct res_common **)res) = r; 878 879 exit: 880 spin_unlock_irq(mlx4_tlock(dev)); 881 return err; 882 } 883 884 int mlx4_get_slave_from_resource_id(struct mlx4_dev *dev, 885 enum mlx4_resource type, 886 u64 res_id, int *slave) 887 { 888 889 struct res_common *r; 890 int err = -ENOENT; 891 int id = res_id; 892 893 if (type == RES_QP) 894 id &= 0x7fffff; 895 spin_lock(mlx4_tlock(dev)); 896 897 r = find_res(dev, id, type); 898 if (r) { 899 *slave = r->owner; 900 err = 0; 901 } 902 spin_unlock(mlx4_tlock(dev)); 903 904 return err; 905 } 906 907 static void put_res(struct mlx4_dev *dev, int slave, u64 res_id, 908 enum mlx4_resource type) 909 { 910 struct res_common *r; 911 912 spin_lock_irq(mlx4_tlock(dev)); 913 r = find_res(dev, res_id, type); 914 if (r) 915 r->state = r->from_state; 916 spin_unlock_irq(mlx4_tlock(dev)); 917 } 918 919 static int counter_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 920 u64 in_param, u64 *out_param, int port); 921 922 static int handle_existing_counter(struct mlx4_dev *dev, u8 slave, int port, 923 int counter_index) 924 { 925 struct res_common *r; 926 struct res_counter *counter; 927 int ret = 0; 928 929 if (counter_index == MLX4_SINK_COUNTER_INDEX(dev)) 930 return ret; 931 932 spin_lock_irq(mlx4_tlock(dev)); 933 r = find_res(dev, counter_index, RES_COUNTER); 934 if (!r || r->owner != slave) { 935 ret = -EINVAL; 936 } else { 937 counter = container_of(r, struct res_counter, com); 938 if (!counter->port) 939 counter->port = port; 940 } 941 942 spin_unlock_irq(mlx4_tlock(dev)); 943 return ret; 944 } 945 946 static int handle_unexisting_counter(struct mlx4_dev *dev, 947 struct mlx4_qp_context *qpc, u8 slave, 948 int port) 949 { 950 struct mlx4_priv *priv = mlx4_priv(dev); 951 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 952 struct res_common *tmp; 953 struct res_counter *counter; 954 u64 counter_idx = MLX4_SINK_COUNTER_INDEX(dev); 955 int err = 0; 956 957 spin_lock_irq(mlx4_tlock(dev)); 958 list_for_each_entry(tmp, 959 &tracker->slave_list[slave].res_list[RES_COUNTER], 960 list) { 961 counter = container_of(tmp, struct res_counter, com); 962 if (port == counter->port) { 963 qpc->pri_path.counter_index = counter->com.res_id; 964 spin_unlock_irq(mlx4_tlock(dev)); 965 return 0; 966 } 967 } 968 spin_unlock_irq(mlx4_tlock(dev)); 969 970 /* No existing counter, need to allocate a new counter */ 971 err = counter_alloc_res(dev, slave, RES_OP_RESERVE, 0, 0, &counter_idx, 972 port); 973 if (err == -ENOENT) { 974 err = 0; 975 } else if (err && err != -ENOSPC) { 976 mlx4_err(dev, "%s: failed to create new counter for slave %d err %d\n", 977 __func__, slave, err); 978 } else { 979 qpc->pri_path.counter_index = counter_idx; 980 mlx4_dbg(dev, "%s: alloc new counter for slave %d index %d\n", 981 __func__, slave, qpc->pri_path.counter_index); 982 err = 0; 983 } 984 985 return err; 986 } 987 988 static int handle_counter(struct mlx4_dev *dev, struct mlx4_qp_context *qpc, 989 u8 slave, int port) 990 { 991 if (qpc->pri_path.counter_index != MLX4_SINK_COUNTER_INDEX(dev)) 992 return handle_existing_counter(dev, slave, port, 993 qpc->pri_path.counter_index); 994 995 return handle_unexisting_counter(dev, qpc, slave, port); 996 } 997 998 static struct res_common *alloc_qp_tr(int id) 999 { 1000 struct res_qp *ret; 1001 1002 ret = kzalloc(sizeof *ret, GFP_KERNEL); 1003 if (!ret) 1004 return NULL; 1005 1006 ret->com.res_id = id; 1007 ret->com.state = RES_QP_RESERVED; 1008 ret->local_qpn = id; 1009 INIT_LIST_HEAD(&ret->mcg_list); 1010 spin_lock_init(&ret->mcg_spl); 1011 atomic_set(&ret->ref_count, 0); 1012 1013 return &ret->com; 1014 } 1015 1016 static struct res_common *alloc_mtt_tr(int id, int order) 1017 { 1018 struct res_mtt *ret; 1019 1020 ret = kzalloc(sizeof *ret, GFP_KERNEL); 1021 if (!ret) 1022 return NULL; 1023 1024 ret->com.res_id = id; 1025 ret->order = order; 1026 ret->com.state = RES_MTT_ALLOCATED; 1027 atomic_set(&ret->ref_count, 0); 1028 1029 return &ret->com; 1030 } 1031 1032 static struct res_common *alloc_mpt_tr(int id, int key) 1033 { 1034 struct res_mpt *ret; 1035 1036 ret = kzalloc(sizeof *ret, GFP_KERNEL); 1037 if (!ret) 1038 return NULL; 1039 1040 ret->com.res_id = id; 1041 ret->com.state = RES_MPT_RESERVED; 1042 ret->key = key; 1043 1044 return &ret->com; 1045 } 1046 1047 static struct res_common *alloc_eq_tr(int id) 1048 { 1049 struct res_eq *ret; 1050 1051 ret = kzalloc(sizeof *ret, GFP_KERNEL); 1052 if (!ret) 1053 return NULL; 1054 1055 ret->com.res_id = id; 1056 ret->com.state = RES_EQ_RESERVED; 1057 1058 return &ret->com; 1059 } 1060 1061 static struct res_common *alloc_cq_tr(int id) 1062 { 1063 struct res_cq *ret; 1064 1065 ret = kzalloc(sizeof *ret, GFP_KERNEL); 1066 if (!ret) 1067 return NULL; 1068 1069 ret->com.res_id = id; 1070 ret->com.state = RES_CQ_ALLOCATED; 1071 atomic_set(&ret->ref_count, 0); 1072 1073 return &ret->com; 1074 } 1075 1076 static struct res_common *alloc_srq_tr(int id) 1077 { 1078 struct res_srq *ret; 1079 1080 ret = kzalloc(sizeof *ret, GFP_KERNEL); 1081 if (!ret) 1082 return NULL; 1083 1084 ret->com.res_id = id; 1085 ret->com.state = RES_SRQ_ALLOCATED; 1086 atomic_set(&ret->ref_count, 0); 1087 1088 return &ret->com; 1089 } 1090 1091 static struct res_common *alloc_counter_tr(int id, int port) 1092 { 1093 struct res_counter *ret; 1094 1095 ret = kzalloc(sizeof *ret, GFP_KERNEL); 1096 if (!ret) 1097 return NULL; 1098 1099 ret->com.res_id = id; 1100 ret->com.state = RES_COUNTER_ALLOCATED; 1101 ret->port = port; 1102 1103 return &ret->com; 1104 } 1105 1106 static struct res_common *alloc_xrcdn_tr(int id) 1107 { 1108 struct res_xrcdn *ret; 1109 1110 ret = kzalloc(sizeof *ret, GFP_KERNEL); 1111 if (!ret) 1112 return NULL; 1113 1114 ret->com.res_id = id; 1115 ret->com.state = RES_XRCD_ALLOCATED; 1116 1117 return &ret->com; 1118 } 1119 1120 static struct res_common *alloc_fs_rule_tr(u64 id, int qpn) 1121 { 1122 struct res_fs_rule *ret; 1123 1124 ret = kzalloc(sizeof *ret, GFP_KERNEL); 1125 if (!ret) 1126 return NULL; 1127 1128 ret->com.res_id = id; 1129 ret->com.state = RES_FS_RULE_ALLOCATED; 1130 ret->qpn = qpn; 1131 return &ret->com; 1132 } 1133 1134 static struct res_common *alloc_tr(u64 id, enum mlx4_resource type, int slave, 1135 int extra) 1136 { 1137 struct res_common *ret; 1138 1139 switch (type) { 1140 case RES_QP: 1141 ret = alloc_qp_tr(id); 1142 break; 1143 case RES_MPT: 1144 ret = alloc_mpt_tr(id, extra); 1145 break; 1146 case RES_MTT: 1147 ret = alloc_mtt_tr(id, extra); 1148 break; 1149 case RES_EQ: 1150 ret = alloc_eq_tr(id); 1151 break; 1152 case RES_CQ: 1153 ret = alloc_cq_tr(id); 1154 break; 1155 case RES_SRQ: 1156 ret = alloc_srq_tr(id); 1157 break; 1158 case RES_MAC: 1159 pr_err("implementation missing\n"); 1160 return NULL; 1161 case RES_COUNTER: 1162 ret = alloc_counter_tr(id, extra); 1163 break; 1164 case RES_XRCD: 1165 ret = alloc_xrcdn_tr(id); 1166 break; 1167 case RES_FS_RULE: 1168 ret = alloc_fs_rule_tr(id, extra); 1169 break; 1170 default: 1171 return NULL; 1172 } 1173 if (ret) 1174 ret->owner = slave; 1175 1176 return ret; 1177 } 1178 1179 int mlx4_calc_vf_counters(struct mlx4_dev *dev, int slave, int port, 1180 struct mlx4_counter *data) 1181 { 1182 struct mlx4_priv *priv = mlx4_priv(dev); 1183 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1184 struct res_common *tmp; 1185 struct res_counter *counter; 1186 int *counters_arr; 1187 int i = 0, err = 0; 1188 1189 memset(data, 0, sizeof(*data)); 1190 1191 counters_arr = kmalloc_array(dev->caps.max_counters, 1192 sizeof(*counters_arr), GFP_KERNEL); 1193 if (!counters_arr) 1194 return -ENOMEM; 1195 1196 spin_lock_irq(mlx4_tlock(dev)); 1197 list_for_each_entry(tmp, 1198 &tracker->slave_list[slave].res_list[RES_COUNTER], 1199 list) { 1200 counter = container_of(tmp, struct res_counter, com); 1201 if (counter->port == port) { 1202 counters_arr[i] = (int)tmp->res_id; 1203 i++; 1204 } 1205 } 1206 spin_unlock_irq(mlx4_tlock(dev)); 1207 counters_arr[i] = -1; 1208 1209 i = 0; 1210 1211 while (counters_arr[i] != -1) { 1212 err = mlx4_get_counter_stats(dev, counters_arr[i], data, 1213 0); 1214 if (err) { 1215 memset(data, 0, sizeof(*data)); 1216 goto table_changed; 1217 } 1218 i++; 1219 } 1220 1221 table_changed: 1222 kfree(counters_arr); 1223 return 0; 1224 } 1225 1226 static int add_res_range(struct mlx4_dev *dev, int slave, u64 base, int count, 1227 enum mlx4_resource type, int extra) 1228 { 1229 int i; 1230 int err; 1231 struct mlx4_priv *priv = mlx4_priv(dev); 1232 struct res_common **res_arr; 1233 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1234 struct rb_root *root = &tracker->res_tree[type]; 1235 1236 res_arr = kzalloc(count * sizeof *res_arr, GFP_KERNEL); 1237 if (!res_arr) 1238 return -ENOMEM; 1239 1240 for (i = 0; i < count; ++i) { 1241 res_arr[i] = alloc_tr(base + i, type, slave, extra); 1242 if (!res_arr[i]) { 1243 for (--i; i >= 0; --i) 1244 kfree(res_arr[i]); 1245 1246 kfree(res_arr); 1247 return -ENOMEM; 1248 } 1249 } 1250 1251 spin_lock_irq(mlx4_tlock(dev)); 1252 for (i = 0; i < count; ++i) { 1253 if (find_res(dev, base + i, type)) { 1254 err = -EEXIST; 1255 goto undo; 1256 } 1257 err = res_tracker_insert(root, res_arr[i]); 1258 if (err) 1259 goto undo; 1260 list_add_tail(&res_arr[i]->list, 1261 &tracker->slave_list[slave].res_list[type]); 1262 } 1263 spin_unlock_irq(mlx4_tlock(dev)); 1264 kfree(res_arr); 1265 1266 return 0; 1267 1268 undo: 1269 for (--i; i >= 0; --i) { 1270 rb_erase(&res_arr[i]->node, root); 1271 list_del_init(&res_arr[i]->list); 1272 } 1273 1274 spin_unlock_irq(mlx4_tlock(dev)); 1275 1276 for (i = 0; i < count; ++i) 1277 kfree(res_arr[i]); 1278 1279 kfree(res_arr); 1280 1281 return err; 1282 } 1283 1284 static int remove_qp_ok(struct res_qp *res) 1285 { 1286 if (res->com.state == RES_QP_BUSY || atomic_read(&res->ref_count) || 1287 !list_empty(&res->mcg_list)) { 1288 pr_err("resource tracker: fail to remove qp, state %d, ref_count %d\n", 1289 res->com.state, atomic_read(&res->ref_count)); 1290 return -EBUSY; 1291 } else if (res->com.state != RES_QP_RESERVED) { 1292 return -EPERM; 1293 } 1294 1295 return 0; 1296 } 1297 1298 static int remove_mtt_ok(struct res_mtt *res, int order) 1299 { 1300 if (res->com.state == RES_MTT_BUSY || 1301 atomic_read(&res->ref_count)) { 1302 pr_devel("%s-%d: state %s, ref_count %d\n", 1303 __func__, __LINE__, 1304 mtt_states_str(res->com.state), 1305 atomic_read(&res->ref_count)); 1306 return -EBUSY; 1307 } else if (res->com.state != RES_MTT_ALLOCATED) 1308 return -EPERM; 1309 else if (res->order != order) 1310 return -EINVAL; 1311 1312 return 0; 1313 } 1314 1315 static int remove_mpt_ok(struct res_mpt *res) 1316 { 1317 if (res->com.state == RES_MPT_BUSY) 1318 return -EBUSY; 1319 else if (res->com.state != RES_MPT_RESERVED) 1320 return -EPERM; 1321 1322 return 0; 1323 } 1324 1325 static int remove_eq_ok(struct res_eq *res) 1326 { 1327 if (res->com.state == RES_MPT_BUSY) 1328 return -EBUSY; 1329 else if (res->com.state != RES_MPT_RESERVED) 1330 return -EPERM; 1331 1332 return 0; 1333 } 1334 1335 static int remove_counter_ok(struct res_counter *res) 1336 { 1337 if (res->com.state == RES_COUNTER_BUSY) 1338 return -EBUSY; 1339 else if (res->com.state != RES_COUNTER_ALLOCATED) 1340 return -EPERM; 1341 1342 return 0; 1343 } 1344 1345 static int remove_xrcdn_ok(struct res_xrcdn *res) 1346 { 1347 if (res->com.state == RES_XRCD_BUSY) 1348 return -EBUSY; 1349 else if (res->com.state != RES_XRCD_ALLOCATED) 1350 return -EPERM; 1351 1352 return 0; 1353 } 1354 1355 static int remove_fs_rule_ok(struct res_fs_rule *res) 1356 { 1357 if (res->com.state == RES_FS_RULE_BUSY) 1358 return -EBUSY; 1359 else if (res->com.state != RES_FS_RULE_ALLOCATED) 1360 return -EPERM; 1361 1362 return 0; 1363 } 1364 1365 static int remove_cq_ok(struct res_cq *res) 1366 { 1367 if (res->com.state == RES_CQ_BUSY) 1368 return -EBUSY; 1369 else if (res->com.state != RES_CQ_ALLOCATED) 1370 return -EPERM; 1371 1372 return 0; 1373 } 1374 1375 static int remove_srq_ok(struct res_srq *res) 1376 { 1377 if (res->com.state == RES_SRQ_BUSY) 1378 return -EBUSY; 1379 else if (res->com.state != RES_SRQ_ALLOCATED) 1380 return -EPERM; 1381 1382 return 0; 1383 } 1384 1385 static int remove_ok(struct res_common *res, enum mlx4_resource type, int extra) 1386 { 1387 switch (type) { 1388 case RES_QP: 1389 return remove_qp_ok((struct res_qp *)res); 1390 case RES_CQ: 1391 return remove_cq_ok((struct res_cq *)res); 1392 case RES_SRQ: 1393 return remove_srq_ok((struct res_srq *)res); 1394 case RES_MPT: 1395 return remove_mpt_ok((struct res_mpt *)res); 1396 case RES_MTT: 1397 return remove_mtt_ok((struct res_mtt *)res, extra); 1398 case RES_MAC: 1399 return -ENOSYS; 1400 case RES_EQ: 1401 return remove_eq_ok((struct res_eq *)res); 1402 case RES_COUNTER: 1403 return remove_counter_ok((struct res_counter *)res); 1404 case RES_XRCD: 1405 return remove_xrcdn_ok((struct res_xrcdn *)res); 1406 case RES_FS_RULE: 1407 return remove_fs_rule_ok((struct res_fs_rule *)res); 1408 default: 1409 return -EINVAL; 1410 } 1411 } 1412 1413 static int rem_res_range(struct mlx4_dev *dev, int slave, u64 base, int count, 1414 enum mlx4_resource type, int extra) 1415 { 1416 u64 i; 1417 int err; 1418 struct mlx4_priv *priv = mlx4_priv(dev); 1419 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1420 struct res_common *r; 1421 1422 spin_lock_irq(mlx4_tlock(dev)); 1423 for (i = base; i < base + count; ++i) { 1424 r = res_tracker_lookup(&tracker->res_tree[type], i); 1425 if (!r) { 1426 err = -ENOENT; 1427 goto out; 1428 } 1429 if (r->owner != slave) { 1430 err = -EPERM; 1431 goto out; 1432 } 1433 err = remove_ok(r, type, extra); 1434 if (err) 1435 goto out; 1436 } 1437 1438 for (i = base; i < base + count; ++i) { 1439 r = res_tracker_lookup(&tracker->res_tree[type], i); 1440 rb_erase(&r->node, &tracker->res_tree[type]); 1441 list_del(&r->list); 1442 kfree(r); 1443 } 1444 err = 0; 1445 1446 out: 1447 spin_unlock_irq(mlx4_tlock(dev)); 1448 1449 return err; 1450 } 1451 1452 static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn, 1453 enum res_qp_states state, struct res_qp **qp, 1454 int alloc) 1455 { 1456 struct mlx4_priv *priv = mlx4_priv(dev); 1457 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1458 struct res_qp *r; 1459 int err = 0; 1460 1461 spin_lock_irq(mlx4_tlock(dev)); 1462 r = res_tracker_lookup(&tracker->res_tree[RES_QP], qpn); 1463 if (!r) 1464 err = -ENOENT; 1465 else if (r->com.owner != slave) 1466 err = -EPERM; 1467 else { 1468 switch (state) { 1469 case RES_QP_BUSY: 1470 mlx4_dbg(dev, "%s: failed RES_QP, 0x%llx\n", 1471 __func__, r->com.res_id); 1472 err = -EBUSY; 1473 break; 1474 1475 case RES_QP_RESERVED: 1476 if (r->com.state == RES_QP_MAPPED && !alloc) 1477 break; 1478 1479 mlx4_dbg(dev, "failed RES_QP, 0x%llx\n", r->com.res_id); 1480 err = -EINVAL; 1481 break; 1482 1483 case RES_QP_MAPPED: 1484 if ((r->com.state == RES_QP_RESERVED && alloc) || 1485 r->com.state == RES_QP_HW) 1486 break; 1487 else { 1488 mlx4_dbg(dev, "failed RES_QP, 0x%llx\n", 1489 r->com.res_id); 1490 err = -EINVAL; 1491 } 1492 1493 break; 1494 1495 case RES_QP_HW: 1496 if (r->com.state != RES_QP_MAPPED) 1497 err = -EINVAL; 1498 break; 1499 default: 1500 err = -EINVAL; 1501 } 1502 1503 if (!err) { 1504 r->com.from_state = r->com.state; 1505 r->com.to_state = state; 1506 r->com.state = RES_QP_BUSY; 1507 if (qp) 1508 *qp = r; 1509 } 1510 } 1511 1512 spin_unlock_irq(mlx4_tlock(dev)); 1513 1514 return err; 1515 } 1516 1517 static int mr_res_start_move_to(struct mlx4_dev *dev, int slave, int index, 1518 enum res_mpt_states state, struct res_mpt **mpt) 1519 { 1520 struct mlx4_priv *priv = mlx4_priv(dev); 1521 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1522 struct res_mpt *r; 1523 int err = 0; 1524 1525 spin_lock_irq(mlx4_tlock(dev)); 1526 r = res_tracker_lookup(&tracker->res_tree[RES_MPT], index); 1527 if (!r) 1528 err = -ENOENT; 1529 else if (r->com.owner != slave) 1530 err = -EPERM; 1531 else { 1532 switch (state) { 1533 case RES_MPT_BUSY: 1534 err = -EINVAL; 1535 break; 1536 1537 case RES_MPT_RESERVED: 1538 if (r->com.state != RES_MPT_MAPPED) 1539 err = -EINVAL; 1540 break; 1541 1542 case RES_MPT_MAPPED: 1543 if (r->com.state != RES_MPT_RESERVED && 1544 r->com.state != RES_MPT_HW) 1545 err = -EINVAL; 1546 break; 1547 1548 case RES_MPT_HW: 1549 if (r->com.state != RES_MPT_MAPPED) 1550 err = -EINVAL; 1551 break; 1552 default: 1553 err = -EINVAL; 1554 } 1555 1556 if (!err) { 1557 r->com.from_state = r->com.state; 1558 r->com.to_state = state; 1559 r->com.state = RES_MPT_BUSY; 1560 if (mpt) 1561 *mpt = r; 1562 } 1563 } 1564 1565 spin_unlock_irq(mlx4_tlock(dev)); 1566 1567 return err; 1568 } 1569 1570 static int eq_res_start_move_to(struct mlx4_dev *dev, int slave, int index, 1571 enum res_eq_states state, struct res_eq **eq) 1572 { 1573 struct mlx4_priv *priv = mlx4_priv(dev); 1574 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1575 struct res_eq *r; 1576 int err = 0; 1577 1578 spin_lock_irq(mlx4_tlock(dev)); 1579 r = res_tracker_lookup(&tracker->res_tree[RES_EQ], index); 1580 if (!r) 1581 err = -ENOENT; 1582 else if (r->com.owner != slave) 1583 err = -EPERM; 1584 else { 1585 switch (state) { 1586 case RES_EQ_BUSY: 1587 err = -EINVAL; 1588 break; 1589 1590 case RES_EQ_RESERVED: 1591 if (r->com.state != RES_EQ_HW) 1592 err = -EINVAL; 1593 break; 1594 1595 case RES_EQ_HW: 1596 if (r->com.state != RES_EQ_RESERVED) 1597 err = -EINVAL; 1598 break; 1599 1600 default: 1601 err = -EINVAL; 1602 } 1603 1604 if (!err) { 1605 r->com.from_state = r->com.state; 1606 r->com.to_state = state; 1607 r->com.state = RES_EQ_BUSY; 1608 } 1609 } 1610 1611 spin_unlock_irq(mlx4_tlock(dev)); 1612 1613 if (!err && eq) 1614 *eq = r; 1615 1616 return err; 1617 } 1618 1619 static int cq_res_start_move_to(struct mlx4_dev *dev, int slave, int cqn, 1620 enum res_cq_states state, struct res_cq **cq) 1621 { 1622 struct mlx4_priv *priv = mlx4_priv(dev); 1623 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1624 struct res_cq *r; 1625 int err; 1626 1627 spin_lock_irq(mlx4_tlock(dev)); 1628 r = res_tracker_lookup(&tracker->res_tree[RES_CQ], cqn); 1629 if (!r) { 1630 err = -ENOENT; 1631 } else if (r->com.owner != slave) { 1632 err = -EPERM; 1633 } else if (state == RES_CQ_ALLOCATED) { 1634 if (r->com.state != RES_CQ_HW) 1635 err = -EINVAL; 1636 else if (atomic_read(&r->ref_count)) 1637 err = -EBUSY; 1638 else 1639 err = 0; 1640 } else if (state != RES_CQ_HW || r->com.state != RES_CQ_ALLOCATED) { 1641 err = -EINVAL; 1642 } else { 1643 err = 0; 1644 } 1645 1646 if (!err) { 1647 r->com.from_state = r->com.state; 1648 r->com.to_state = state; 1649 r->com.state = RES_CQ_BUSY; 1650 if (cq) 1651 *cq = r; 1652 } 1653 1654 spin_unlock_irq(mlx4_tlock(dev)); 1655 1656 return err; 1657 } 1658 1659 static int srq_res_start_move_to(struct mlx4_dev *dev, int slave, int index, 1660 enum res_srq_states state, struct res_srq **srq) 1661 { 1662 struct mlx4_priv *priv = mlx4_priv(dev); 1663 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1664 struct res_srq *r; 1665 int err = 0; 1666 1667 spin_lock_irq(mlx4_tlock(dev)); 1668 r = res_tracker_lookup(&tracker->res_tree[RES_SRQ], index); 1669 if (!r) { 1670 err = -ENOENT; 1671 } else if (r->com.owner != slave) { 1672 err = -EPERM; 1673 } else if (state == RES_SRQ_ALLOCATED) { 1674 if (r->com.state != RES_SRQ_HW) 1675 err = -EINVAL; 1676 else if (atomic_read(&r->ref_count)) 1677 err = -EBUSY; 1678 } else if (state != RES_SRQ_HW || r->com.state != RES_SRQ_ALLOCATED) { 1679 err = -EINVAL; 1680 } 1681 1682 if (!err) { 1683 r->com.from_state = r->com.state; 1684 r->com.to_state = state; 1685 r->com.state = RES_SRQ_BUSY; 1686 if (srq) 1687 *srq = r; 1688 } 1689 1690 spin_unlock_irq(mlx4_tlock(dev)); 1691 1692 return err; 1693 } 1694 1695 static void res_abort_move(struct mlx4_dev *dev, int slave, 1696 enum mlx4_resource type, int id) 1697 { 1698 struct mlx4_priv *priv = mlx4_priv(dev); 1699 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1700 struct res_common *r; 1701 1702 spin_lock_irq(mlx4_tlock(dev)); 1703 r = res_tracker_lookup(&tracker->res_tree[type], id); 1704 if (r && (r->owner == slave)) 1705 r->state = r->from_state; 1706 spin_unlock_irq(mlx4_tlock(dev)); 1707 } 1708 1709 static void res_end_move(struct mlx4_dev *dev, int slave, 1710 enum mlx4_resource type, int id) 1711 { 1712 struct mlx4_priv *priv = mlx4_priv(dev); 1713 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1714 struct res_common *r; 1715 1716 spin_lock_irq(mlx4_tlock(dev)); 1717 r = res_tracker_lookup(&tracker->res_tree[type], id); 1718 if (r && (r->owner == slave)) 1719 r->state = r->to_state; 1720 spin_unlock_irq(mlx4_tlock(dev)); 1721 } 1722 1723 static int valid_reserved(struct mlx4_dev *dev, int slave, int qpn) 1724 { 1725 return mlx4_is_qp_reserved(dev, qpn) && 1726 (mlx4_is_master(dev) || mlx4_is_guest_proxy(dev, slave, qpn)); 1727 } 1728 1729 static int fw_reserved(struct mlx4_dev *dev, int qpn) 1730 { 1731 return qpn < dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW]; 1732 } 1733 1734 static int qp_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 1735 u64 in_param, u64 *out_param) 1736 { 1737 int err; 1738 int count; 1739 int align; 1740 int base; 1741 int qpn; 1742 u8 flags; 1743 1744 switch (op) { 1745 case RES_OP_RESERVE: 1746 count = get_param_l(&in_param) & 0xffffff; 1747 /* Turn off all unsupported QP allocation flags that the 1748 * slave tries to set. 1749 */ 1750 flags = (get_param_l(&in_param) >> 24) & dev->caps.alloc_res_qp_mask; 1751 align = get_param_h(&in_param); 1752 err = mlx4_grant_resource(dev, slave, RES_QP, count, 0); 1753 if (err) 1754 return err; 1755 1756 err = __mlx4_qp_reserve_range(dev, count, align, &base, flags); 1757 if (err) { 1758 mlx4_release_resource(dev, slave, RES_QP, count, 0); 1759 return err; 1760 } 1761 1762 err = add_res_range(dev, slave, base, count, RES_QP, 0); 1763 if (err) { 1764 mlx4_release_resource(dev, slave, RES_QP, count, 0); 1765 __mlx4_qp_release_range(dev, base, count); 1766 return err; 1767 } 1768 set_param_l(out_param, base); 1769 break; 1770 case RES_OP_MAP_ICM: 1771 qpn = get_param_l(&in_param) & 0x7fffff; 1772 if (valid_reserved(dev, slave, qpn)) { 1773 err = add_res_range(dev, slave, qpn, 1, RES_QP, 0); 1774 if (err) 1775 return err; 1776 } 1777 1778 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, 1779 NULL, 1); 1780 if (err) 1781 return err; 1782 1783 if (!fw_reserved(dev, qpn)) { 1784 err = __mlx4_qp_alloc_icm(dev, qpn, GFP_KERNEL); 1785 if (err) { 1786 res_abort_move(dev, slave, RES_QP, qpn); 1787 return err; 1788 } 1789 } 1790 1791 res_end_move(dev, slave, RES_QP, qpn); 1792 break; 1793 1794 default: 1795 err = -EINVAL; 1796 break; 1797 } 1798 return err; 1799 } 1800 1801 static int mtt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 1802 u64 in_param, u64 *out_param) 1803 { 1804 int err = -EINVAL; 1805 int base; 1806 int order; 1807 1808 if (op != RES_OP_RESERVE_AND_MAP) 1809 return err; 1810 1811 order = get_param_l(&in_param); 1812 1813 err = mlx4_grant_resource(dev, slave, RES_MTT, 1 << order, 0); 1814 if (err) 1815 return err; 1816 1817 base = __mlx4_alloc_mtt_range(dev, order); 1818 if (base == -1) { 1819 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0); 1820 return -ENOMEM; 1821 } 1822 1823 err = add_res_range(dev, slave, base, 1, RES_MTT, order); 1824 if (err) { 1825 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0); 1826 __mlx4_free_mtt_range(dev, base, order); 1827 } else { 1828 set_param_l(out_param, base); 1829 } 1830 1831 return err; 1832 } 1833 1834 static int mpt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 1835 u64 in_param, u64 *out_param) 1836 { 1837 int err = -EINVAL; 1838 int index; 1839 int id; 1840 struct res_mpt *mpt; 1841 1842 switch (op) { 1843 case RES_OP_RESERVE: 1844 err = mlx4_grant_resource(dev, slave, RES_MPT, 1, 0); 1845 if (err) 1846 break; 1847 1848 index = __mlx4_mpt_reserve(dev); 1849 if (index == -1) { 1850 mlx4_release_resource(dev, slave, RES_MPT, 1, 0); 1851 break; 1852 } 1853 id = index & mpt_mask(dev); 1854 1855 err = add_res_range(dev, slave, id, 1, RES_MPT, index); 1856 if (err) { 1857 mlx4_release_resource(dev, slave, RES_MPT, 1, 0); 1858 __mlx4_mpt_release(dev, index); 1859 break; 1860 } 1861 set_param_l(out_param, index); 1862 break; 1863 case RES_OP_MAP_ICM: 1864 index = get_param_l(&in_param); 1865 id = index & mpt_mask(dev); 1866 err = mr_res_start_move_to(dev, slave, id, 1867 RES_MPT_MAPPED, &mpt); 1868 if (err) 1869 return err; 1870 1871 err = __mlx4_mpt_alloc_icm(dev, mpt->key, GFP_KERNEL); 1872 if (err) { 1873 res_abort_move(dev, slave, RES_MPT, id); 1874 return err; 1875 } 1876 1877 res_end_move(dev, slave, RES_MPT, id); 1878 break; 1879 } 1880 return err; 1881 } 1882 1883 static int cq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 1884 u64 in_param, u64 *out_param) 1885 { 1886 int cqn; 1887 int err; 1888 1889 switch (op) { 1890 case RES_OP_RESERVE_AND_MAP: 1891 err = mlx4_grant_resource(dev, slave, RES_CQ, 1, 0); 1892 if (err) 1893 break; 1894 1895 err = __mlx4_cq_alloc_icm(dev, &cqn); 1896 if (err) { 1897 mlx4_release_resource(dev, slave, RES_CQ, 1, 0); 1898 break; 1899 } 1900 1901 err = add_res_range(dev, slave, cqn, 1, RES_CQ, 0); 1902 if (err) { 1903 mlx4_release_resource(dev, slave, RES_CQ, 1, 0); 1904 __mlx4_cq_free_icm(dev, cqn); 1905 break; 1906 } 1907 1908 set_param_l(out_param, cqn); 1909 break; 1910 1911 default: 1912 err = -EINVAL; 1913 } 1914 1915 return err; 1916 } 1917 1918 static int srq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 1919 u64 in_param, u64 *out_param) 1920 { 1921 int srqn; 1922 int err; 1923 1924 switch (op) { 1925 case RES_OP_RESERVE_AND_MAP: 1926 err = mlx4_grant_resource(dev, slave, RES_SRQ, 1, 0); 1927 if (err) 1928 break; 1929 1930 err = __mlx4_srq_alloc_icm(dev, &srqn); 1931 if (err) { 1932 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0); 1933 break; 1934 } 1935 1936 err = add_res_range(dev, slave, srqn, 1, RES_SRQ, 0); 1937 if (err) { 1938 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0); 1939 __mlx4_srq_free_icm(dev, srqn); 1940 break; 1941 } 1942 1943 set_param_l(out_param, srqn); 1944 break; 1945 1946 default: 1947 err = -EINVAL; 1948 } 1949 1950 return err; 1951 } 1952 1953 static int mac_find_smac_ix_in_slave(struct mlx4_dev *dev, int slave, int port, 1954 u8 smac_index, u64 *mac) 1955 { 1956 struct mlx4_priv *priv = mlx4_priv(dev); 1957 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1958 struct list_head *mac_list = 1959 &tracker->slave_list[slave].res_list[RES_MAC]; 1960 struct mac_res *res, *tmp; 1961 1962 list_for_each_entry_safe(res, tmp, mac_list, list) { 1963 if (res->smac_index == smac_index && res->port == (u8) port) { 1964 *mac = res->mac; 1965 return 0; 1966 } 1967 } 1968 return -ENOENT; 1969 } 1970 1971 static int mac_add_to_slave(struct mlx4_dev *dev, int slave, u64 mac, int port, u8 smac_index) 1972 { 1973 struct mlx4_priv *priv = mlx4_priv(dev); 1974 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1975 struct list_head *mac_list = 1976 &tracker->slave_list[slave].res_list[RES_MAC]; 1977 struct mac_res *res, *tmp; 1978 1979 list_for_each_entry_safe(res, tmp, mac_list, list) { 1980 if (res->mac == mac && res->port == (u8) port) { 1981 /* mac found. update ref count */ 1982 ++res->ref_count; 1983 return 0; 1984 } 1985 } 1986 1987 if (mlx4_grant_resource(dev, slave, RES_MAC, 1, port)) 1988 return -EINVAL; 1989 res = kzalloc(sizeof *res, GFP_KERNEL); 1990 if (!res) { 1991 mlx4_release_resource(dev, slave, RES_MAC, 1, port); 1992 return -ENOMEM; 1993 } 1994 res->mac = mac; 1995 res->port = (u8) port; 1996 res->smac_index = smac_index; 1997 res->ref_count = 1; 1998 list_add_tail(&res->list, 1999 &tracker->slave_list[slave].res_list[RES_MAC]); 2000 return 0; 2001 } 2002 2003 static void mac_del_from_slave(struct mlx4_dev *dev, int slave, u64 mac, 2004 int port) 2005 { 2006 struct mlx4_priv *priv = mlx4_priv(dev); 2007 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 2008 struct list_head *mac_list = 2009 &tracker->slave_list[slave].res_list[RES_MAC]; 2010 struct mac_res *res, *tmp; 2011 2012 list_for_each_entry_safe(res, tmp, mac_list, list) { 2013 if (res->mac == mac && res->port == (u8) port) { 2014 if (!--res->ref_count) { 2015 list_del(&res->list); 2016 mlx4_release_resource(dev, slave, RES_MAC, 1, port); 2017 kfree(res); 2018 } 2019 break; 2020 } 2021 } 2022 } 2023 2024 static void rem_slave_macs(struct mlx4_dev *dev, int slave) 2025 { 2026 struct mlx4_priv *priv = mlx4_priv(dev); 2027 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 2028 struct list_head *mac_list = 2029 &tracker->slave_list[slave].res_list[RES_MAC]; 2030 struct mac_res *res, *tmp; 2031 int i; 2032 2033 list_for_each_entry_safe(res, tmp, mac_list, list) { 2034 list_del(&res->list); 2035 /* dereference the mac the num times the slave referenced it */ 2036 for (i = 0; i < res->ref_count; i++) 2037 __mlx4_unregister_mac(dev, res->port, res->mac); 2038 mlx4_release_resource(dev, slave, RES_MAC, 1, res->port); 2039 kfree(res); 2040 } 2041 } 2042 2043 static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2044 u64 in_param, u64 *out_param, int in_port) 2045 { 2046 int err = -EINVAL; 2047 int port; 2048 u64 mac; 2049 u8 smac_index; 2050 2051 if (op != RES_OP_RESERVE_AND_MAP) 2052 return err; 2053 2054 port = !in_port ? get_param_l(out_param) : in_port; 2055 port = mlx4_slave_convert_port( 2056 dev, slave, port); 2057 2058 if (port < 0) 2059 return -EINVAL; 2060 mac = in_param; 2061 2062 err = __mlx4_register_mac(dev, port, mac); 2063 if (err >= 0) { 2064 smac_index = err; 2065 set_param_l(out_param, err); 2066 err = 0; 2067 } 2068 2069 if (!err) { 2070 err = mac_add_to_slave(dev, slave, mac, port, smac_index); 2071 if (err) 2072 __mlx4_unregister_mac(dev, port, mac); 2073 } 2074 return err; 2075 } 2076 2077 static int vlan_add_to_slave(struct mlx4_dev *dev, int slave, u16 vlan, 2078 int port, int vlan_index) 2079 { 2080 struct mlx4_priv *priv = mlx4_priv(dev); 2081 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 2082 struct list_head *vlan_list = 2083 &tracker->slave_list[slave].res_list[RES_VLAN]; 2084 struct vlan_res *res, *tmp; 2085 2086 list_for_each_entry_safe(res, tmp, vlan_list, list) { 2087 if (res->vlan == vlan && res->port == (u8) port) { 2088 /* vlan found. update ref count */ 2089 ++res->ref_count; 2090 return 0; 2091 } 2092 } 2093 2094 if (mlx4_grant_resource(dev, slave, RES_VLAN, 1, port)) 2095 return -EINVAL; 2096 res = kzalloc(sizeof(*res), GFP_KERNEL); 2097 if (!res) { 2098 mlx4_release_resource(dev, slave, RES_VLAN, 1, port); 2099 return -ENOMEM; 2100 } 2101 res->vlan = vlan; 2102 res->port = (u8) port; 2103 res->vlan_index = vlan_index; 2104 res->ref_count = 1; 2105 list_add_tail(&res->list, 2106 &tracker->slave_list[slave].res_list[RES_VLAN]); 2107 return 0; 2108 } 2109 2110 2111 static void vlan_del_from_slave(struct mlx4_dev *dev, int slave, u16 vlan, 2112 int port) 2113 { 2114 struct mlx4_priv *priv = mlx4_priv(dev); 2115 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 2116 struct list_head *vlan_list = 2117 &tracker->slave_list[slave].res_list[RES_VLAN]; 2118 struct vlan_res *res, *tmp; 2119 2120 list_for_each_entry_safe(res, tmp, vlan_list, list) { 2121 if (res->vlan == vlan && res->port == (u8) port) { 2122 if (!--res->ref_count) { 2123 list_del(&res->list); 2124 mlx4_release_resource(dev, slave, RES_VLAN, 2125 1, port); 2126 kfree(res); 2127 } 2128 break; 2129 } 2130 } 2131 } 2132 2133 static void rem_slave_vlans(struct mlx4_dev *dev, int slave) 2134 { 2135 struct mlx4_priv *priv = mlx4_priv(dev); 2136 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 2137 struct list_head *vlan_list = 2138 &tracker->slave_list[slave].res_list[RES_VLAN]; 2139 struct vlan_res *res, *tmp; 2140 int i; 2141 2142 list_for_each_entry_safe(res, tmp, vlan_list, list) { 2143 list_del(&res->list); 2144 /* dereference the vlan the num times the slave referenced it */ 2145 for (i = 0; i < res->ref_count; i++) 2146 __mlx4_unregister_vlan(dev, res->port, res->vlan); 2147 mlx4_release_resource(dev, slave, RES_VLAN, 1, res->port); 2148 kfree(res); 2149 } 2150 } 2151 2152 static int vlan_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2153 u64 in_param, u64 *out_param, int in_port) 2154 { 2155 struct mlx4_priv *priv = mlx4_priv(dev); 2156 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state; 2157 int err; 2158 u16 vlan; 2159 int vlan_index; 2160 int port; 2161 2162 port = !in_port ? get_param_l(out_param) : in_port; 2163 2164 if (!port || op != RES_OP_RESERVE_AND_MAP) 2165 return -EINVAL; 2166 2167 port = mlx4_slave_convert_port( 2168 dev, slave, port); 2169 2170 if (port < 0) 2171 return -EINVAL; 2172 /* upstream kernels had NOP for reg/unreg vlan. Continue this. */ 2173 if (!in_port && port > 0 && port <= dev->caps.num_ports) { 2174 slave_state[slave].old_vlan_api = true; 2175 return 0; 2176 } 2177 2178 vlan = (u16) in_param; 2179 2180 err = __mlx4_register_vlan(dev, port, vlan, &vlan_index); 2181 if (!err) { 2182 set_param_l(out_param, (u32) vlan_index); 2183 err = vlan_add_to_slave(dev, slave, vlan, port, vlan_index); 2184 if (err) 2185 __mlx4_unregister_vlan(dev, port, vlan); 2186 } 2187 return err; 2188 } 2189 2190 static int counter_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2191 u64 in_param, u64 *out_param, int port) 2192 { 2193 u32 index; 2194 int err; 2195 2196 if (op != RES_OP_RESERVE) 2197 return -EINVAL; 2198 2199 err = mlx4_grant_resource(dev, slave, RES_COUNTER, 1, 0); 2200 if (err) 2201 return err; 2202 2203 err = __mlx4_counter_alloc(dev, &index); 2204 if (err) { 2205 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0); 2206 return err; 2207 } 2208 2209 err = add_res_range(dev, slave, index, 1, RES_COUNTER, port); 2210 if (err) { 2211 __mlx4_counter_free(dev, index); 2212 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0); 2213 } else { 2214 set_param_l(out_param, index); 2215 } 2216 2217 return err; 2218 } 2219 2220 static int xrcdn_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2221 u64 in_param, u64 *out_param) 2222 { 2223 u32 xrcdn; 2224 int err; 2225 2226 if (op != RES_OP_RESERVE) 2227 return -EINVAL; 2228 2229 err = __mlx4_xrcd_alloc(dev, &xrcdn); 2230 if (err) 2231 return err; 2232 2233 err = add_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0); 2234 if (err) 2235 __mlx4_xrcd_free(dev, xrcdn); 2236 else 2237 set_param_l(out_param, xrcdn); 2238 2239 return err; 2240 } 2241 2242 int mlx4_ALLOC_RES_wrapper(struct mlx4_dev *dev, int slave, 2243 struct mlx4_vhcr *vhcr, 2244 struct mlx4_cmd_mailbox *inbox, 2245 struct mlx4_cmd_mailbox *outbox, 2246 struct mlx4_cmd_info *cmd) 2247 { 2248 int err; 2249 int alop = vhcr->op_modifier; 2250 2251 switch (vhcr->in_modifier & 0xFF) { 2252 case RES_QP: 2253 err = qp_alloc_res(dev, slave, vhcr->op_modifier, alop, 2254 vhcr->in_param, &vhcr->out_param); 2255 break; 2256 2257 case RES_MTT: 2258 err = mtt_alloc_res(dev, slave, vhcr->op_modifier, alop, 2259 vhcr->in_param, &vhcr->out_param); 2260 break; 2261 2262 case RES_MPT: 2263 err = mpt_alloc_res(dev, slave, vhcr->op_modifier, alop, 2264 vhcr->in_param, &vhcr->out_param); 2265 break; 2266 2267 case RES_CQ: 2268 err = cq_alloc_res(dev, slave, vhcr->op_modifier, alop, 2269 vhcr->in_param, &vhcr->out_param); 2270 break; 2271 2272 case RES_SRQ: 2273 err = srq_alloc_res(dev, slave, vhcr->op_modifier, alop, 2274 vhcr->in_param, &vhcr->out_param); 2275 break; 2276 2277 case RES_MAC: 2278 err = mac_alloc_res(dev, slave, vhcr->op_modifier, alop, 2279 vhcr->in_param, &vhcr->out_param, 2280 (vhcr->in_modifier >> 8) & 0xFF); 2281 break; 2282 2283 case RES_VLAN: 2284 err = vlan_alloc_res(dev, slave, vhcr->op_modifier, alop, 2285 vhcr->in_param, &vhcr->out_param, 2286 (vhcr->in_modifier >> 8) & 0xFF); 2287 break; 2288 2289 case RES_COUNTER: 2290 err = counter_alloc_res(dev, slave, vhcr->op_modifier, alop, 2291 vhcr->in_param, &vhcr->out_param, 0); 2292 break; 2293 2294 case RES_XRCD: 2295 err = xrcdn_alloc_res(dev, slave, vhcr->op_modifier, alop, 2296 vhcr->in_param, &vhcr->out_param); 2297 break; 2298 2299 default: 2300 err = -EINVAL; 2301 break; 2302 } 2303 2304 return err; 2305 } 2306 2307 static int qp_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2308 u64 in_param) 2309 { 2310 int err; 2311 int count; 2312 int base; 2313 int qpn; 2314 2315 switch (op) { 2316 case RES_OP_RESERVE: 2317 base = get_param_l(&in_param) & 0x7fffff; 2318 count = get_param_h(&in_param); 2319 err = rem_res_range(dev, slave, base, count, RES_QP, 0); 2320 if (err) 2321 break; 2322 mlx4_release_resource(dev, slave, RES_QP, count, 0); 2323 __mlx4_qp_release_range(dev, base, count); 2324 break; 2325 case RES_OP_MAP_ICM: 2326 qpn = get_param_l(&in_param) & 0x7fffff; 2327 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_RESERVED, 2328 NULL, 0); 2329 if (err) 2330 return err; 2331 2332 if (!fw_reserved(dev, qpn)) 2333 __mlx4_qp_free_icm(dev, qpn); 2334 2335 res_end_move(dev, slave, RES_QP, qpn); 2336 2337 if (valid_reserved(dev, slave, qpn)) 2338 err = rem_res_range(dev, slave, qpn, 1, RES_QP, 0); 2339 break; 2340 default: 2341 err = -EINVAL; 2342 break; 2343 } 2344 return err; 2345 } 2346 2347 static int mtt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2348 u64 in_param, u64 *out_param) 2349 { 2350 int err = -EINVAL; 2351 int base; 2352 int order; 2353 2354 if (op != RES_OP_RESERVE_AND_MAP) 2355 return err; 2356 2357 base = get_param_l(&in_param); 2358 order = get_param_h(&in_param); 2359 err = rem_res_range(dev, slave, base, 1, RES_MTT, order); 2360 if (!err) { 2361 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0); 2362 __mlx4_free_mtt_range(dev, base, order); 2363 } 2364 return err; 2365 } 2366 2367 static int mpt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2368 u64 in_param) 2369 { 2370 int err = -EINVAL; 2371 int index; 2372 int id; 2373 struct res_mpt *mpt; 2374 2375 switch (op) { 2376 case RES_OP_RESERVE: 2377 index = get_param_l(&in_param); 2378 id = index & mpt_mask(dev); 2379 err = get_res(dev, slave, id, RES_MPT, &mpt); 2380 if (err) 2381 break; 2382 index = mpt->key; 2383 put_res(dev, slave, id, RES_MPT); 2384 2385 err = rem_res_range(dev, slave, id, 1, RES_MPT, 0); 2386 if (err) 2387 break; 2388 mlx4_release_resource(dev, slave, RES_MPT, 1, 0); 2389 __mlx4_mpt_release(dev, index); 2390 break; 2391 case RES_OP_MAP_ICM: 2392 index = get_param_l(&in_param); 2393 id = index & mpt_mask(dev); 2394 err = mr_res_start_move_to(dev, slave, id, 2395 RES_MPT_RESERVED, &mpt); 2396 if (err) 2397 return err; 2398 2399 __mlx4_mpt_free_icm(dev, mpt->key); 2400 res_end_move(dev, slave, RES_MPT, id); 2401 break; 2402 default: 2403 err = -EINVAL; 2404 break; 2405 } 2406 return err; 2407 } 2408 2409 static int cq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2410 u64 in_param, u64 *out_param) 2411 { 2412 int cqn; 2413 int err; 2414 2415 switch (op) { 2416 case RES_OP_RESERVE_AND_MAP: 2417 cqn = get_param_l(&in_param); 2418 err = rem_res_range(dev, slave, cqn, 1, RES_CQ, 0); 2419 if (err) 2420 break; 2421 2422 mlx4_release_resource(dev, slave, RES_CQ, 1, 0); 2423 __mlx4_cq_free_icm(dev, cqn); 2424 break; 2425 2426 default: 2427 err = -EINVAL; 2428 break; 2429 } 2430 2431 return err; 2432 } 2433 2434 static int srq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2435 u64 in_param, u64 *out_param) 2436 { 2437 int srqn; 2438 int err; 2439 2440 switch (op) { 2441 case RES_OP_RESERVE_AND_MAP: 2442 srqn = get_param_l(&in_param); 2443 err = rem_res_range(dev, slave, srqn, 1, RES_SRQ, 0); 2444 if (err) 2445 break; 2446 2447 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0); 2448 __mlx4_srq_free_icm(dev, srqn); 2449 break; 2450 2451 default: 2452 err = -EINVAL; 2453 break; 2454 } 2455 2456 return err; 2457 } 2458 2459 static int mac_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2460 u64 in_param, u64 *out_param, int in_port) 2461 { 2462 int port; 2463 int err = 0; 2464 2465 switch (op) { 2466 case RES_OP_RESERVE_AND_MAP: 2467 port = !in_port ? get_param_l(out_param) : in_port; 2468 port = mlx4_slave_convert_port( 2469 dev, slave, port); 2470 2471 if (port < 0) 2472 return -EINVAL; 2473 mac_del_from_slave(dev, slave, in_param, port); 2474 __mlx4_unregister_mac(dev, port, in_param); 2475 break; 2476 default: 2477 err = -EINVAL; 2478 break; 2479 } 2480 2481 return err; 2482 2483 } 2484 2485 static int vlan_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2486 u64 in_param, u64 *out_param, int port) 2487 { 2488 struct mlx4_priv *priv = mlx4_priv(dev); 2489 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state; 2490 int err = 0; 2491 2492 port = mlx4_slave_convert_port( 2493 dev, slave, port); 2494 2495 if (port < 0) 2496 return -EINVAL; 2497 switch (op) { 2498 case RES_OP_RESERVE_AND_MAP: 2499 if (slave_state[slave].old_vlan_api) 2500 return 0; 2501 if (!port) 2502 return -EINVAL; 2503 vlan_del_from_slave(dev, slave, in_param, port); 2504 __mlx4_unregister_vlan(dev, port, in_param); 2505 break; 2506 default: 2507 err = -EINVAL; 2508 break; 2509 } 2510 2511 return err; 2512 } 2513 2514 static int counter_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2515 u64 in_param, u64 *out_param) 2516 { 2517 int index; 2518 int err; 2519 2520 if (op != RES_OP_RESERVE) 2521 return -EINVAL; 2522 2523 index = get_param_l(&in_param); 2524 if (index == MLX4_SINK_COUNTER_INDEX(dev)) 2525 return 0; 2526 2527 err = rem_res_range(dev, slave, index, 1, RES_COUNTER, 0); 2528 if (err) 2529 return err; 2530 2531 __mlx4_counter_free(dev, index); 2532 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0); 2533 2534 return err; 2535 } 2536 2537 static int xrcdn_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2538 u64 in_param, u64 *out_param) 2539 { 2540 int xrcdn; 2541 int err; 2542 2543 if (op != RES_OP_RESERVE) 2544 return -EINVAL; 2545 2546 xrcdn = get_param_l(&in_param); 2547 err = rem_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0); 2548 if (err) 2549 return err; 2550 2551 __mlx4_xrcd_free(dev, xrcdn); 2552 2553 return err; 2554 } 2555 2556 int mlx4_FREE_RES_wrapper(struct mlx4_dev *dev, int slave, 2557 struct mlx4_vhcr *vhcr, 2558 struct mlx4_cmd_mailbox *inbox, 2559 struct mlx4_cmd_mailbox *outbox, 2560 struct mlx4_cmd_info *cmd) 2561 { 2562 int err = -EINVAL; 2563 int alop = vhcr->op_modifier; 2564 2565 switch (vhcr->in_modifier & 0xFF) { 2566 case RES_QP: 2567 err = qp_free_res(dev, slave, vhcr->op_modifier, alop, 2568 vhcr->in_param); 2569 break; 2570 2571 case RES_MTT: 2572 err = mtt_free_res(dev, slave, vhcr->op_modifier, alop, 2573 vhcr->in_param, &vhcr->out_param); 2574 break; 2575 2576 case RES_MPT: 2577 err = mpt_free_res(dev, slave, vhcr->op_modifier, alop, 2578 vhcr->in_param); 2579 break; 2580 2581 case RES_CQ: 2582 err = cq_free_res(dev, slave, vhcr->op_modifier, alop, 2583 vhcr->in_param, &vhcr->out_param); 2584 break; 2585 2586 case RES_SRQ: 2587 err = srq_free_res(dev, slave, vhcr->op_modifier, alop, 2588 vhcr->in_param, &vhcr->out_param); 2589 break; 2590 2591 case RES_MAC: 2592 err = mac_free_res(dev, slave, vhcr->op_modifier, alop, 2593 vhcr->in_param, &vhcr->out_param, 2594 (vhcr->in_modifier >> 8) & 0xFF); 2595 break; 2596 2597 case RES_VLAN: 2598 err = vlan_free_res(dev, slave, vhcr->op_modifier, alop, 2599 vhcr->in_param, &vhcr->out_param, 2600 (vhcr->in_modifier >> 8) & 0xFF); 2601 break; 2602 2603 case RES_COUNTER: 2604 err = counter_free_res(dev, slave, vhcr->op_modifier, alop, 2605 vhcr->in_param, &vhcr->out_param); 2606 break; 2607 2608 case RES_XRCD: 2609 err = xrcdn_free_res(dev, slave, vhcr->op_modifier, alop, 2610 vhcr->in_param, &vhcr->out_param); 2611 2612 default: 2613 break; 2614 } 2615 return err; 2616 } 2617 2618 /* ugly but other choices are uglier */ 2619 static int mr_phys_mpt(struct mlx4_mpt_entry *mpt) 2620 { 2621 return (be32_to_cpu(mpt->flags) >> 9) & 1; 2622 } 2623 2624 static int mr_get_mtt_addr(struct mlx4_mpt_entry *mpt) 2625 { 2626 return (int)be64_to_cpu(mpt->mtt_addr) & 0xfffffff8; 2627 } 2628 2629 static int mr_get_mtt_size(struct mlx4_mpt_entry *mpt) 2630 { 2631 return be32_to_cpu(mpt->mtt_sz); 2632 } 2633 2634 static u32 mr_get_pd(struct mlx4_mpt_entry *mpt) 2635 { 2636 return be32_to_cpu(mpt->pd_flags) & 0x00ffffff; 2637 } 2638 2639 static int mr_is_fmr(struct mlx4_mpt_entry *mpt) 2640 { 2641 return be32_to_cpu(mpt->pd_flags) & MLX4_MPT_PD_FLAG_FAST_REG; 2642 } 2643 2644 static int mr_is_bind_enabled(struct mlx4_mpt_entry *mpt) 2645 { 2646 return be32_to_cpu(mpt->flags) & MLX4_MPT_FLAG_BIND_ENABLE; 2647 } 2648 2649 static int mr_is_region(struct mlx4_mpt_entry *mpt) 2650 { 2651 return be32_to_cpu(mpt->flags) & MLX4_MPT_FLAG_REGION; 2652 } 2653 2654 static int qp_get_mtt_addr(struct mlx4_qp_context *qpc) 2655 { 2656 return be32_to_cpu(qpc->mtt_base_addr_l) & 0xfffffff8; 2657 } 2658 2659 static int srq_get_mtt_addr(struct mlx4_srq_context *srqc) 2660 { 2661 return be32_to_cpu(srqc->mtt_base_addr_l) & 0xfffffff8; 2662 } 2663 2664 static int qp_get_mtt_size(struct mlx4_qp_context *qpc) 2665 { 2666 int page_shift = (qpc->log_page_size & 0x3f) + 12; 2667 int log_sq_size = (qpc->sq_size_stride >> 3) & 0xf; 2668 int log_sq_sride = qpc->sq_size_stride & 7; 2669 int log_rq_size = (qpc->rq_size_stride >> 3) & 0xf; 2670 int log_rq_stride = qpc->rq_size_stride & 7; 2671 int srq = (be32_to_cpu(qpc->srqn) >> 24) & 1; 2672 int rss = (be32_to_cpu(qpc->flags) >> 13) & 1; 2673 u32 ts = (be32_to_cpu(qpc->flags) >> 16) & 0xff; 2674 int xrc = (ts == MLX4_QP_ST_XRC) ? 1 : 0; 2675 int sq_size; 2676 int rq_size; 2677 int total_pages; 2678 int total_mem; 2679 int page_offset = (be32_to_cpu(qpc->params2) >> 6) & 0x3f; 2680 2681 sq_size = 1 << (log_sq_size + log_sq_sride + 4); 2682 rq_size = (srq|rss|xrc) ? 0 : (1 << (log_rq_size + log_rq_stride + 4)); 2683 total_mem = sq_size + rq_size; 2684 total_pages = 2685 roundup_pow_of_two((total_mem + (page_offset << 6)) >> 2686 page_shift); 2687 2688 return total_pages; 2689 } 2690 2691 static int check_mtt_range(struct mlx4_dev *dev, int slave, int start, 2692 int size, struct res_mtt *mtt) 2693 { 2694 int res_start = mtt->com.res_id; 2695 int res_size = (1 << mtt->order); 2696 2697 if (start < res_start || start + size > res_start + res_size) 2698 return -EPERM; 2699 return 0; 2700 } 2701 2702 int mlx4_SW2HW_MPT_wrapper(struct mlx4_dev *dev, int slave, 2703 struct mlx4_vhcr *vhcr, 2704 struct mlx4_cmd_mailbox *inbox, 2705 struct mlx4_cmd_mailbox *outbox, 2706 struct mlx4_cmd_info *cmd) 2707 { 2708 int err; 2709 int index = vhcr->in_modifier; 2710 struct res_mtt *mtt; 2711 struct res_mpt *mpt; 2712 int mtt_base = mr_get_mtt_addr(inbox->buf) / dev->caps.mtt_entry_sz; 2713 int phys; 2714 int id; 2715 u32 pd; 2716 int pd_slave; 2717 2718 id = index & mpt_mask(dev); 2719 err = mr_res_start_move_to(dev, slave, id, RES_MPT_HW, &mpt); 2720 if (err) 2721 return err; 2722 2723 /* Disable memory windows for VFs. */ 2724 if (!mr_is_region(inbox->buf)) { 2725 err = -EPERM; 2726 goto ex_abort; 2727 } 2728 2729 /* Make sure that the PD bits related to the slave id are zeros. */ 2730 pd = mr_get_pd(inbox->buf); 2731 pd_slave = (pd >> 17) & 0x7f; 2732 if (pd_slave != 0 && --pd_slave != slave) { 2733 err = -EPERM; 2734 goto ex_abort; 2735 } 2736 2737 if (mr_is_fmr(inbox->buf)) { 2738 /* FMR and Bind Enable are forbidden in slave devices. */ 2739 if (mr_is_bind_enabled(inbox->buf)) { 2740 err = -EPERM; 2741 goto ex_abort; 2742 } 2743 /* FMR and Memory Windows are also forbidden. */ 2744 if (!mr_is_region(inbox->buf)) { 2745 err = -EPERM; 2746 goto ex_abort; 2747 } 2748 } 2749 2750 phys = mr_phys_mpt(inbox->buf); 2751 if (!phys) { 2752 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); 2753 if (err) 2754 goto ex_abort; 2755 2756 err = check_mtt_range(dev, slave, mtt_base, 2757 mr_get_mtt_size(inbox->buf), mtt); 2758 if (err) 2759 goto ex_put; 2760 2761 mpt->mtt = mtt; 2762 } 2763 2764 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 2765 if (err) 2766 goto ex_put; 2767 2768 if (!phys) { 2769 atomic_inc(&mtt->ref_count); 2770 put_res(dev, slave, mtt->com.res_id, RES_MTT); 2771 } 2772 2773 res_end_move(dev, slave, RES_MPT, id); 2774 return 0; 2775 2776 ex_put: 2777 if (!phys) 2778 put_res(dev, slave, mtt->com.res_id, RES_MTT); 2779 ex_abort: 2780 res_abort_move(dev, slave, RES_MPT, id); 2781 2782 return err; 2783 } 2784 2785 int mlx4_HW2SW_MPT_wrapper(struct mlx4_dev *dev, int slave, 2786 struct mlx4_vhcr *vhcr, 2787 struct mlx4_cmd_mailbox *inbox, 2788 struct mlx4_cmd_mailbox *outbox, 2789 struct mlx4_cmd_info *cmd) 2790 { 2791 int err; 2792 int index = vhcr->in_modifier; 2793 struct res_mpt *mpt; 2794 int id; 2795 2796 id = index & mpt_mask(dev); 2797 err = mr_res_start_move_to(dev, slave, id, RES_MPT_MAPPED, &mpt); 2798 if (err) 2799 return err; 2800 2801 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 2802 if (err) 2803 goto ex_abort; 2804 2805 if (mpt->mtt) 2806 atomic_dec(&mpt->mtt->ref_count); 2807 2808 res_end_move(dev, slave, RES_MPT, id); 2809 return 0; 2810 2811 ex_abort: 2812 res_abort_move(dev, slave, RES_MPT, id); 2813 2814 return err; 2815 } 2816 2817 int mlx4_QUERY_MPT_wrapper(struct mlx4_dev *dev, int slave, 2818 struct mlx4_vhcr *vhcr, 2819 struct mlx4_cmd_mailbox *inbox, 2820 struct mlx4_cmd_mailbox *outbox, 2821 struct mlx4_cmd_info *cmd) 2822 { 2823 int err; 2824 int index = vhcr->in_modifier; 2825 struct res_mpt *mpt; 2826 int id; 2827 2828 id = index & mpt_mask(dev); 2829 err = get_res(dev, slave, id, RES_MPT, &mpt); 2830 if (err) 2831 return err; 2832 2833 if (mpt->com.from_state == RES_MPT_MAPPED) { 2834 /* In order to allow rereg in SRIOV, we need to alter the MPT entry. To do 2835 * that, the VF must read the MPT. But since the MPT entry memory is not 2836 * in the VF's virtual memory space, it must use QUERY_MPT to obtain the 2837 * entry contents. To guarantee that the MPT cannot be changed, the driver 2838 * must perform HW2SW_MPT before this query and return the MPT entry to HW 2839 * ownership fofollowing the change. The change here allows the VF to 2840 * perform QUERY_MPT also when the entry is in SW ownership. 2841 */ 2842 struct mlx4_mpt_entry *mpt_entry = mlx4_table_find( 2843 &mlx4_priv(dev)->mr_table.dmpt_table, 2844 mpt->key, NULL); 2845 2846 if (NULL == mpt_entry || NULL == outbox->buf) { 2847 err = -EINVAL; 2848 goto out; 2849 } 2850 2851 memcpy(outbox->buf, mpt_entry, sizeof(*mpt_entry)); 2852 2853 err = 0; 2854 } else if (mpt->com.from_state == RES_MPT_HW) { 2855 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 2856 } else { 2857 err = -EBUSY; 2858 goto out; 2859 } 2860 2861 2862 out: 2863 put_res(dev, slave, id, RES_MPT); 2864 return err; 2865 } 2866 2867 static int qp_get_rcqn(struct mlx4_qp_context *qpc) 2868 { 2869 return be32_to_cpu(qpc->cqn_recv) & 0xffffff; 2870 } 2871 2872 static int qp_get_scqn(struct mlx4_qp_context *qpc) 2873 { 2874 return be32_to_cpu(qpc->cqn_send) & 0xffffff; 2875 } 2876 2877 static u32 qp_get_srqn(struct mlx4_qp_context *qpc) 2878 { 2879 return be32_to_cpu(qpc->srqn) & 0x1ffffff; 2880 } 2881 2882 static void adjust_proxy_tun_qkey(struct mlx4_dev *dev, struct mlx4_vhcr *vhcr, 2883 struct mlx4_qp_context *context) 2884 { 2885 u32 qpn = vhcr->in_modifier & 0xffffff; 2886 u32 qkey = 0; 2887 2888 if (mlx4_get_parav_qkey(dev, qpn, &qkey)) 2889 return; 2890 2891 /* adjust qkey in qp context */ 2892 context->qkey = cpu_to_be32(qkey); 2893 } 2894 2895 static int adjust_qp_sched_queue(struct mlx4_dev *dev, int slave, 2896 struct mlx4_qp_context *qpc, 2897 struct mlx4_cmd_mailbox *inbox); 2898 2899 int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave, 2900 struct mlx4_vhcr *vhcr, 2901 struct mlx4_cmd_mailbox *inbox, 2902 struct mlx4_cmd_mailbox *outbox, 2903 struct mlx4_cmd_info *cmd) 2904 { 2905 int err; 2906 int qpn = vhcr->in_modifier & 0x7fffff; 2907 struct res_mtt *mtt; 2908 struct res_qp *qp; 2909 struct mlx4_qp_context *qpc = inbox->buf + 8; 2910 int mtt_base = qp_get_mtt_addr(qpc) / dev->caps.mtt_entry_sz; 2911 int mtt_size = qp_get_mtt_size(qpc); 2912 struct res_cq *rcq; 2913 struct res_cq *scq; 2914 int rcqn = qp_get_rcqn(qpc); 2915 int scqn = qp_get_scqn(qpc); 2916 u32 srqn = qp_get_srqn(qpc) & 0xffffff; 2917 int use_srq = (qp_get_srqn(qpc) >> 24) & 1; 2918 struct res_srq *srq; 2919 int local_qpn = be32_to_cpu(qpc->local_qpn) & 0xffffff; 2920 2921 err = adjust_qp_sched_queue(dev, slave, qpc, inbox); 2922 if (err) 2923 return err; 2924 2925 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_HW, &qp, 0); 2926 if (err) 2927 return err; 2928 qp->local_qpn = local_qpn; 2929 qp->sched_queue = 0; 2930 qp->param3 = 0; 2931 qp->vlan_control = 0; 2932 qp->fvl_rx = 0; 2933 qp->pri_path_fl = 0; 2934 qp->vlan_index = 0; 2935 qp->feup = 0; 2936 qp->qpc_flags = be32_to_cpu(qpc->flags); 2937 2938 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); 2939 if (err) 2940 goto ex_abort; 2941 2942 err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt); 2943 if (err) 2944 goto ex_put_mtt; 2945 2946 err = get_res(dev, slave, rcqn, RES_CQ, &rcq); 2947 if (err) 2948 goto ex_put_mtt; 2949 2950 if (scqn != rcqn) { 2951 err = get_res(dev, slave, scqn, RES_CQ, &scq); 2952 if (err) 2953 goto ex_put_rcq; 2954 } else 2955 scq = rcq; 2956 2957 if (use_srq) { 2958 err = get_res(dev, slave, srqn, RES_SRQ, &srq); 2959 if (err) 2960 goto ex_put_scq; 2961 } 2962 2963 adjust_proxy_tun_qkey(dev, vhcr, qpc); 2964 update_pkey_index(dev, slave, inbox); 2965 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 2966 if (err) 2967 goto ex_put_srq; 2968 atomic_inc(&mtt->ref_count); 2969 qp->mtt = mtt; 2970 atomic_inc(&rcq->ref_count); 2971 qp->rcq = rcq; 2972 atomic_inc(&scq->ref_count); 2973 qp->scq = scq; 2974 2975 if (scqn != rcqn) 2976 put_res(dev, slave, scqn, RES_CQ); 2977 2978 if (use_srq) { 2979 atomic_inc(&srq->ref_count); 2980 put_res(dev, slave, srqn, RES_SRQ); 2981 qp->srq = srq; 2982 } 2983 put_res(dev, slave, rcqn, RES_CQ); 2984 put_res(dev, slave, mtt_base, RES_MTT); 2985 res_end_move(dev, slave, RES_QP, qpn); 2986 2987 return 0; 2988 2989 ex_put_srq: 2990 if (use_srq) 2991 put_res(dev, slave, srqn, RES_SRQ); 2992 ex_put_scq: 2993 if (scqn != rcqn) 2994 put_res(dev, slave, scqn, RES_CQ); 2995 ex_put_rcq: 2996 put_res(dev, slave, rcqn, RES_CQ); 2997 ex_put_mtt: 2998 put_res(dev, slave, mtt_base, RES_MTT); 2999 ex_abort: 3000 res_abort_move(dev, slave, RES_QP, qpn); 3001 3002 return err; 3003 } 3004 3005 static int eq_get_mtt_addr(struct mlx4_eq_context *eqc) 3006 { 3007 return be32_to_cpu(eqc->mtt_base_addr_l) & 0xfffffff8; 3008 } 3009 3010 static int eq_get_mtt_size(struct mlx4_eq_context *eqc) 3011 { 3012 int log_eq_size = eqc->log_eq_size & 0x1f; 3013 int page_shift = (eqc->log_page_size & 0x3f) + 12; 3014 3015 if (log_eq_size + 5 < page_shift) 3016 return 1; 3017 3018 return 1 << (log_eq_size + 5 - page_shift); 3019 } 3020 3021 static int cq_get_mtt_addr(struct mlx4_cq_context *cqc) 3022 { 3023 return be32_to_cpu(cqc->mtt_base_addr_l) & 0xfffffff8; 3024 } 3025 3026 static int cq_get_mtt_size(struct mlx4_cq_context *cqc) 3027 { 3028 int log_cq_size = (be32_to_cpu(cqc->logsize_usrpage) >> 24) & 0x1f; 3029 int page_shift = (cqc->log_page_size & 0x3f) + 12; 3030 3031 if (log_cq_size + 5 < page_shift) 3032 return 1; 3033 3034 return 1 << (log_cq_size + 5 - page_shift); 3035 } 3036 3037 int mlx4_SW2HW_EQ_wrapper(struct mlx4_dev *dev, int slave, 3038 struct mlx4_vhcr *vhcr, 3039 struct mlx4_cmd_mailbox *inbox, 3040 struct mlx4_cmd_mailbox *outbox, 3041 struct mlx4_cmd_info *cmd) 3042 { 3043 int err; 3044 int eqn = vhcr->in_modifier; 3045 int res_id = (slave << 10) | eqn; 3046 struct mlx4_eq_context *eqc = inbox->buf; 3047 int mtt_base = eq_get_mtt_addr(eqc) / dev->caps.mtt_entry_sz; 3048 int mtt_size = eq_get_mtt_size(eqc); 3049 struct res_eq *eq; 3050 struct res_mtt *mtt; 3051 3052 err = add_res_range(dev, slave, res_id, 1, RES_EQ, 0); 3053 if (err) 3054 return err; 3055 err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_HW, &eq); 3056 if (err) 3057 goto out_add; 3058 3059 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); 3060 if (err) 3061 goto out_move; 3062 3063 err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt); 3064 if (err) 3065 goto out_put; 3066 3067 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3068 if (err) 3069 goto out_put; 3070 3071 atomic_inc(&mtt->ref_count); 3072 eq->mtt = mtt; 3073 put_res(dev, slave, mtt->com.res_id, RES_MTT); 3074 res_end_move(dev, slave, RES_EQ, res_id); 3075 return 0; 3076 3077 out_put: 3078 put_res(dev, slave, mtt->com.res_id, RES_MTT); 3079 out_move: 3080 res_abort_move(dev, slave, RES_EQ, res_id); 3081 out_add: 3082 rem_res_range(dev, slave, res_id, 1, RES_EQ, 0); 3083 return err; 3084 } 3085 3086 int mlx4_CONFIG_DEV_wrapper(struct mlx4_dev *dev, int slave, 3087 struct mlx4_vhcr *vhcr, 3088 struct mlx4_cmd_mailbox *inbox, 3089 struct mlx4_cmd_mailbox *outbox, 3090 struct mlx4_cmd_info *cmd) 3091 { 3092 int err; 3093 u8 get = vhcr->op_modifier; 3094 3095 if (get != 1) 3096 return -EPERM; 3097 3098 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3099 3100 return err; 3101 } 3102 3103 static int get_containing_mtt(struct mlx4_dev *dev, int slave, int start, 3104 int len, struct res_mtt **res) 3105 { 3106 struct mlx4_priv *priv = mlx4_priv(dev); 3107 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 3108 struct res_mtt *mtt; 3109 int err = -EINVAL; 3110 3111 spin_lock_irq(mlx4_tlock(dev)); 3112 list_for_each_entry(mtt, &tracker->slave_list[slave].res_list[RES_MTT], 3113 com.list) { 3114 if (!check_mtt_range(dev, slave, start, len, mtt)) { 3115 *res = mtt; 3116 mtt->com.from_state = mtt->com.state; 3117 mtt->com.state = RES_MTT_BUSY; 3118 err = 0; 3119 break; 3120 } 3121 } 3122 spin_unlock_irq(mlx4_tlock(dev)); 3123 3124 return err; 3125 } 3126 3127 static int verify_qp_parameters(struct mlx4_dev *dev, 3128 struct mlx4_vhcr *vhcr, 3129 struct mlx4_cmd_mailbox *inbox, 3130 enum qp_transition transition, u8 slave) 3131 { 3132 u32 qp_type; 3133 u32 qpn; 3134 struct mlx4_qp_context *qp_ctx; 3135 enum mlx4_qp_optpar optpar; 3136 int port; 3137 int num_gids; 3138 3139 qp_ctx = inbox->buf + 8; 3140 qp_type = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff; 3141 optpar = be32_to_cpu(*(__be32 *) inbox->buf); 3142 3143 if (slave != mlx4_master_func_num(dev)) { 3144 qp_ctx->params2 &= ~MLX4_QP_BIT_FPP; 3145 /* setting QP rate-limit is disallowed for VFs */ 3146 if (qp_ctx->rate_limit_params) 3147 return -EPERM; 3148 } 3149 3150 switch (qp_type) { 3151 case MLX4_QP_ST_RC: 3152 case MLX4_QP_ST_XRC: 3153 case MLX4_QP_ST_UC: 3154 switch (transition) { 3155 case QP_TRANS_INIT2RTR: 3156 case QP_TRANS_RTR2RTS: 3157 case QP_TRANS_RTS2RTS: 3158 case QP_TRANS_SQD2SQD: 3159 case QP_TRANS_SQD2RTS: 3160 if (slave != mlx4_master_func_num(dev)) { 3161 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH) { 3162 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1; 3163 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) 3164 num_gids = mlx4_get_slave_num_gids(dev, slave, port); 3165 else 3166 num_gids = 1; 3167 if (qp_ctx->pri_path.mgid_index >= num_gids) 3168 return -EINVAL; 3169 } 3170 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) { 3171 port = (qp_ctx->alt_path.sched_queue >> 6 & 1) + 1; 3172 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) 3173 num_gids = mlx4_get_slave_num_gids(dev, slave, port); 3174 else 3175 num_gids = 1; 3176 if (qp_ctx->alt_path.mgid_index >= num_gids) 3177 return -EINVAL; 3178 } 3179 } 3180 break; 3181 default: 3182 break; 3183 } 3184 break; 3185 3186 case MLX4_QP_ST_MLX: 3187 qpn = vhcr->in_modifier & 0x7fffff; 3188 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1; 3189 if (transition == QP_TRANS_INIT2RTR && 3190 slave != mlx4_master_func_num(dev) && 3191 mlx4_is_qp_reserved(dev, qpn) && 3192 !mlx4_vf_smi_enabled(dev, slave, port)) { 3193 /* only enabled VFs may create MLX proxy QPs */ 3194 mlx4_err(dev, "%s: unprivileged slave %d attempting to create an MLX proxy special QP on port %d\n", 3195 __func__, slave, port); 3196 return -EPERM; 3197 } 3198 break; 3199 3200 default: 3201 break; 3202 } 3203 3204 return 0; 3205 } 3206 3207 int mlx4_WRITE_MTT_wrapper(struct mlx4_dev *dev, int slave, 3208 struct mlx4_vhcr *vhcr, 3209 struct mlx4_cmd_mailbox *inbox, 3210 struct mlx4_cmd_mailbox *outbox, 3211 struct mlx4_cmd_info *cmd) 3212 { 3213 struct mlx4_mtt mtt; 3214 __be64 *page_list = inbox->buf; 3215 u64 *pg_list = (u64 *)page_list; 3216 int i; 3217 struct res_mtt *rmtt = NULL; 3218 int start = be64_to_cpu(page_list[0]); 3219 int npages = vhcr->in_modifier; 3220 int err; 3221 3222 err = get_containing_mtt(dev, slave, start, npages, &rmtt); 3223 if (err) 3224 return err; 3225 3226 /* Call the SW implementation of write_mtt: 3227 * - Prepare a dummy mtt struct 3228 * - Translate inbox contents to simple addresses in host endianness */ 3229 mtt.offset = 0; /* TBD this is broken but I don't handle it since 3230 we don't really use it */ 3231 mtt.order = 0; 3232 mtt.page_shift = 0; 3233 for (i = 0; i < npages; ++i) 3234 pg_list[i + 2] = (be64_to_cpu(page_list[i + 2]) & ~1ULL); 3235 3236 err = __mlx4_write_mtt(dev, &mtt, be64_to_cpu(page_list[0]), npages, 3237 ((u64 *)page_list + 2)); 3238 3239 if (rmtt) 3240 put_res(dev, slave, rmtt->com.res_id, RES_MTT); 3241 3242 return err; 3243 } 3244 3245 int mlx4_HW2SW_EQ_wrapper(struct mlx4_dev *dev, int slave, 3246 struct mlx4_vhcr *vhcr, 3247 struct mlx4_cmd_mailbox *inbox, 3248 struct mlx4_cmd_mailbox *outbox, 3249 struct mlx4_cmd_info *cmd) 3250 { 3251 int eqn = vhcr->in_modifier; 3252 int res_id = eqn | (slave << 10); 3253 struct res_eq *eq; 3254 int err; 3255 3256 err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_RESERVED, &eq); 3257 if (err) 3258 return err; 3259 3260 err = get_res(dev, slave, eq->mtt->com.res_id, RES_MTT, NULL); 3261 if (err) 3262 goto ex_abort; 3263 3264 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3265 if (err) 3266 goto ex_put; 3267 3268 atomic_dec(&eq->mtt->ref_count); 3269 put_res(dev, slave, eq->mtt->com.res_id, RES_MTT); 3270 res_end_move(dev, slave, RES_EQ, res_id); 3271 rem_res_range(dev, slave, res_id, 1, RES_EQ, 0); 3272 3273 return 0; 3274 3275 ex_put: 3276 put_res(dev, slave, eq->mtt->com.res_id, RES_MTT); 3277 ex_abort: 3278 res_abort_move(dev, slave, RES_EQ, res_id); 3279 3280 return err; 3281 } 3282 3283 int mlx4_GEN_EQE(struct mlx4_dev *dev, int slave, struct mlx4_eqe *eqe) 3284 { 3285 struct mlx4_priv *priv = mlx4_priv(dev); 3286 struct mlx4_slave_event_eq_info *event_eq; 3287 struct mlx4_cmd_mailbox *mailbox; 3288 u32 in_modifier = 0; 3289 int err; 3290 int res_id; 3291 struct res_eq *req; 3292 3293 if (!priv->mfunc.master.slave_state) 3294 return -EINVAL; 3295 3296 /* check for slave valid, slave not PF, and slave active */ 3297 if (slave < 0 || slave > dev->persist->num_vfs || 3298 slave == dev->caps.function || 3299 !priv->mfunc.master.slave_state[slave].active) 3300 return 0; 3301 3302 event_eq = &priv->mfunc.master.slave_state[slave].event_eq[eqe->type]; 3303 3304 /* Create the event only if the slave is registered */ 3305 if (event_eq->eqn < 0) 3306 return 0; 3307 3308 mutex_lock(&priv->mfunc.master.gen_eqe_mutex[slave]); 3309 res_id = (slave << 10) | event_eq->eqn; 3310 err = get_res(dev, slave, res_id, RES_EQ, &req); 3311 if (err) 3312 goto unlock; 3313 3314 if (req->com.from_state != RES_EQ_HW) { 3315 err = -EINVAL; 3316 goto put; 3317 } 3318 3319 mailbox = mlx4_alloc_cmd_mailbox(dev); 3320 if (IS_ERR(mailbox)) { 3321 err = PTR_ERR(mailbox); 3322 goto put; 3323 } 3324 3325 if (eqe->type == MLX4_EVENT_TYPE_CMD) { 3326 ++event_eq->token; 3327 eqe->event.cmd.token = cpu_to_be16(event_eq->token); 3328 } 3329 3330 memcpy(mailbox->buf, (u8 *) eqe, 28); 3331 3332 in_modifier = (slave & 0xff) | ((event_eq->eqn & 0x3ff) << 16); 3333 3334 err = mlx4_cmd(dev, mailbox->dma, in_modifier, 0, 3335 MLX4_CMD_GEN_EQE, MLX4_CMD_TIME_CLASS_B, 3336 MLX4_CMD_NATIVE); 3337 3338 put_res(dev, slave, res_id, RES_EQ); 3339 mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]); 3340 mlx4_free_cmd_mailbox(dev, mailbox); 3341 return err; 3342 3343 put: 3344 put_res(dev, slave, res_id, RES_EQ); 3345 3346 unlock: 3347 mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]); 3348 return err; 3349 } 3350 3351 int mlx4_QUERY_EQ_wrapper(struct mlx4_dev *dev, int slave, 3352 struct mlx4_vhcr *vhcr, 3353 struct mlx4_cmd_mailbox *inbox, 3354 struct mlx4_cmd_mailbox *outbox, 3355 struct mlx4_cmd_info *cmd) 3356 { 3357 int eqn = vhcr->in_modifier; 3358 int res_id = eqn | (slave << 10); 3359 struct res_eq *eq; 3360 int err; 3361 3362 err = get_res(dev, slave, res_id, RES_EQ, &eq); 3363 if (err) 3364 return err; 3365 3366 if (eq->com.from_state != RES_EQ_HW) { 3367 err = -EINVAL; 3368 goto ex_put; 3369 } 3370 3371 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3372 3373 ex_put: 3374 put_res(dev, slave, res_id, RES_EQ); 3375 return err; 3376 } 3377 3378 int mlx4_SW2HW_CQ_wrapper(struct mlx4_dev *dev, int slave, 3379 struct mlx4_vhcr *vhcr, 3380 struct mlx4_cmd_mailbox *inbox, 3381 struct mlx4_cmd_mailbox *outbox, 3382 struct mlx4_cmd_info *cmd) 3383 { 3384 int err; 3385 int cqn = vhcr->in_modifier; 3386 struct mlx4_cq_context *cqc = inbox->buf; 3387 int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz; 3388 struct res_cq *cq = NULL; 3389 struct res_mtt *mtt; 3390 3391 err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_HW, &cq); 3392 if (err) 3393 return err; 3394 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); 3395 if (err) 3396 goto out_move; 3397 err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt); 3398 if (err) 3399 goto out_put; 3400 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3401 if (err) 3402 goto out_put; 3403 atomic_inc(&mtt->ref_count); 3404 cq->mtt = mtt; 3405 put_res(dev, slave, mtt->com.res_id, RES_MTT); 3406 res_end_move(dev, slave, RES_CQ, cqn); 3407 return 0; 3408 3409 out_put: 3410 put_res(dev, slave, mtt->com.res_id, RES_MTT); 3411 out_move: 3412 res_abort_move(dev, slave, RES_CQ, cqn); 3413 return err; 3414 } 3415 3416 int mlx4_HW2SW_CQ_wrapper(struct mlx4_dev *dev, int slave, 3417 struct mlx4_vhcr *vhcr, 3418 struct mlx4_cmd_mailbox *inbox, 3419 struct mlx4_cmd_mailbox *outbox, 3420 struct mlx4_cmd_info *cmd) 3421 { 3422 int err; 3423 int cqn = vhcr->in_modifier; 3424 struct res_cq *cq = NULL; 3425 3426 err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_ALLOCATED, &cq); 3427 if (err) 3428 return err; 3429 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3430 if (err) 3431 goto out_move; 3432 atomic_dec(&cq->mtt->ref_count); 3433 res_end_move(dev, slave, RES_CQ, cqn); 3434 return 0; 3435 3436 out_move: 3437 res_abort_move(dev, slave, RES_CQ, cqn); 3438 return err; 3439 } 3440 3441 int mlx4_QUERY_CQ_wrapper(struct mlx4_dev *dev, int slave, 3442 struct mlx4_vhcr *vhcr, 3443 struct mlx4_cmd_mailbox *inbox, 3444 struct mlx4_cmd_mailbox *outbox, 3445 struct mlx4_cmd_info *cmd) 3446 { 3447 int cqn = vhcr->in_modifier; 3448 struct res_cq *cq; 3449 int err; 3450 3451 err = get_res(dev, slave, cqn, RES_CQ, &cq); 3452 if (err) 3453 return err; 3454 3455 if (cq->com.from_state != RES_CQ_HW) 3456 goto ex_put; 3457 3458 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3459 ex_put: 3460 put_res(dev, slave, cqn, RES_CQ); 3461 3462 return err; 3463 } 3464 3465 static int handle_resize(struct mlx4_dev *dev, int slave, 3466 struct mlx4_vhcr *vhcr, 3467 struct mlx4_cmd_mailbox *inbox, 3468 struct mlx4_cmd_mailbox *outbox, 3469 struct mlx4_cmd_info *cmd, 3470 struct res_cq *cq) 3471 { 3472 int err; 3473 struct res_mtt *orig_mtt; 3474 struct res_mtt *mtt; 3475 struct mlx4_cq_context *cqc = inbox->buf; 3476 int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz; 3477 3478 err = get_res(dev, slave, cq->mtt->com.res_id, RES_MTT, &orig_mtt); 3479 if (err) 3480 return err; 3481 3482 if (orig_mtt != cq->mtt) { 3483 err = -EINVAL; 3484 goto ex_put; 3485 } 3486 3487 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); 3488 if (err) 3489 goto ex_put; 3490 3491 err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt); 3492 if (err) 3493 goto ex_put1; 3494 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3495 if (err) 3496 goto ex_put1; 3497 atomic_dec(&orig_mtt->ref_count); 3498 put_res(dev, slave, orig_mtt->com.res_id, RES_MTT); 3499 atomic_inc(&mtt->ref_count); 3500 cq->mtt = mtt; 3501 put_res(dev, slave, mtt->com.res_id, RES_MTT); 3502 return 0; 3503 3504 ex_put1: 3505 put_res(dev, slave, mtt->com.res_id, RES_MTT); 3506 ex_put: 3507 put_res(dev, slave, orig_mtt->com.res_id, RES_MTT); 3508 3509 return err; 3510 3511 } 3512 3513 int mlx4_MODIFY_CQ_wrapper(struct mlx4_dev *dev, int slave, 3514 struct mlx4_vhcr *vhcr, 3515 struct mlx4_cmd_mailbox *inbox, 3516 struct mlx4_cmd_mailbox *outbox, 3517 struct mlx4_cmd_info *cmd) 3518 { 3519 int cqn = vhcr->in_modifier; 3520 struct res_cq *cq; 3521 int err; 3522 3523 err = get_res(dev, slave, cqn, RES_CQ, &cq); 3524 if (err) 3525 return err; 3526 3527 if (cq->com.from_state != RES_CQ_HW) 3528 goto ex_put; 3529 3530 if (vhcr->op_modifier == 0) { 3531 err = handle_resize(dev, slave, vhcr, inbox, outbox, cmd, cq); 3532 goto ex_put; 3533 } 3534 3535 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3536 ex_put: 3537 put_res(dev, slave, cqn, RES_CQ); 3538 3539 return err; 3540 } 3541 3542 static int srq_get_mtt_size(struct mlx4_srq_context *srqc) 3543 { 3544 int log_srq_size = (be32_to_cpu(srqc->state_logsize_srqn) >> 24) & 0xf; 3545 int log_rq_stride = srqc->logstride & 7; 3546 int page_shift = (srqc->log_page_size & 0x3f) + 12; 3547 3548 if (log_srq_size + log_rq_stride + 4 < page_shift) 3549 return 1; 3550 3551 return 1 << (log_srq_size + log_rq_stride + 4 - page_shift); 3552 } 3553 3554 int mlx4_SW2HW_SRQ_wrapper(struct mlx4_dev *dev, int slave, 3555 struct mlx4_vhcr *vhcr, 3556 struct mlx4_cmd_mailbox *inbox, 3557 struct mlx4_cmd_mailbox *outbox, 3558 struct mlx4_cmd_info *cmd) 3559 { 3560 int err; 3561 int srqn = vhcr->in_modifier; 3562 struct res_mtt *mtt; 3563 struct res_srq *srq = NULL; 3564 struct mlx4_srq_context *srqc = inbox->buf; 3565 int mtt_base = srq_get_mtt_addr(srqc) / dev->caps.mtt_entry_sz; 3566 3567 if (srqn != (be32_to_cpu(srqc->state_logsize_srqn) & 0xffffff)) 3568 return -EINVAL; 3569 3570 err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_HW, &srq); 3571 if (err) 3572 return err; 3573 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); 3574 if (err) 3575 goto ex_abort; 3576 err = check_mtt_range(dev, slave, mtt_base, srq_get_mtt_size(srqc), 3577 mtt); 3578 if (err) 3579 goto ex_put_mtt; 3580 3581 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3582 if (err) 3583 goto ex_put_mtt; 3584 3585 atomic_inc(&mtt->ref_count); 3586 srq->mtt = mtt; 3587 put_res(dev, slave, mtt->com.res_id, RES_MTT); 3588 res_end_move(dev, slave, RES_SRQ, srqn); 3589 return 0; 3590 3591 ex_put_mtt: 3592 put_res(dev, slave, mtt->com.res_id, RES_MTT); 3593 ex_abort: 3594 res_abort_move(dev, slave, RES_SRQ, srqn); 3595 3596 return err; 3597 } 3598 3599 int mlx4_HW2SW_SRQ_wrapper(struct mlx4_dev *dev, int slave, 3600 struct mlx4_vhcr *vhcr, 3601 struct mlx4_cmd_mailbox *inbox, 3602 struct mlx4_cmd_mailbox *outbox, 3603 struct mlx4_cmd_info *cmd) 3604 { 3605 int err; 3606 int srqn = vhcr->in_modifier; 3607 struct res_srq *srq = NULL; 3608 3609 err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_ALLOCATED, &srq); 3610 if (err) 3611 return err; 3612 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3613 if (err) 3614 goto ex_abort; 3615 atomic_dec(&srq->mtt->ref_count); 3616 if (srq->cq) 3617 atomic_dec(&srq->cq->ref_count); 3618 res_end_move(dev, slave, RES_SRQ, srqn); 3619 3620 return 0; 3621 3622 ex_abort: 3623 res_abort_move(dev, slave, RES_SRQ, srqn); 3624 3625 return err; 3626 } 3627 3628 int mlx4_QUERY_SRQ_wrapper(struct mlx4_dev *dev, int slave, 3629 struct mlx4_vhcr *vhcr, 3630 struct mlx4_cmd_mailbox *inbox, 3631 struct mlx4_cmd_mailbox *outbox, 3632 struct mlx4_cmd_info *cmd) 3633 { 3634 int err; 3635 int srqn = vhcr->in_modifier; 3636 struct res_srq *srq; 3637 3638 err = get_res(dev, slave, srqn, RES_SRQ, &srq); 3639 if (err) 3640 return err; 3641 if (srq->com.from_state != RES_SRQ_HW) { 3642 err = -EBUSY; 3643 goto out; 3644 } 3645 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3646 out: 3647 put_res(dev, slave, srqn, RES_SRQ); 3648 return err; 3649 } 3650 3651 int mlx4_ARM_SRQ_wrapper(struct mlx4_dev *dev, int slave, 3652 struct mlx4_vhcr *vhcr, 3653 struct mlx4_cmd_mailbox *inbox, 3654 struct mlx4_cmd_mailbox *outbox, 3655 struct mlx4_cmd_info *cmd) 3656 { 3657 int err; 3658 int srqn = vhcr->in_modifier; 3659 struct res_srq *srq; 3660 3661 err = get_res(dev, slave, srqn, RES_SRQ, &srq); 3662 if (err) 3663 return err; 3664 3665 if (srq->com.from_state != RES_SRQ_HW) { 3666 err = -EBUSY; 3667 goto out; 3668 } 3669 3670 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3671 out: 3672 put_res(dev, slave, srqn, RES_SRQ); 3673 return err; 3674 } 3675 3676 int mlx4_GEN_QP_wrapper(struct mlx4_dev *dev, int slave, 3677 struct mlx4_vhcr *vhcr, 3678 struct mlx4_cmd_mailbox *inbox, 3679 struct mlx4_cmd_mailbox *outbox, 3680 struct mlx4_cmd_info *cmd) 3681 { 3682 int err; 3683 int qpn = vhcr->in_modifier & 0x7fffff; 3684 struct res_qp *qp; 3685 3686 err = get_res(dev, slave, qpn, RES_QP, &qp); 3687 if (err) 3688 return err; 3689 if (qp->com.from_state != RES_QP_HW) { 3690 err = -EBUSY; 3691 goto out; 3692 } 3693 3694 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3695 out: 3696 put_res(dev, slave, qpn, RES_QP); 3697 return err; 3698 } 3699 3700 int mlx4_INIT2INIT_QP_wrapper(struct mlx4_dev *dev, int slave, 3701 struct mlx4_vhcr *vhcr, 3702 struct mlx4_cmd_mailbox *inbox, 3703 struct mlx4_cmd_mailbox *outbox, 3704 struct mlx4_cmd_info *cmd) 3705 { 3706 struct mlx4_qp_context *context = inbox->buf + 8; 3707 adjust_proxy_tun_qkey(dev, vhcr, context); 3708 update_pkey_index(dev, slave, inbox); 3709 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3710 } 3711 3712 static int adjust_qp_sched_queue(struct mlx4_dev *dev, int slave, 3713 struct mlx4_qp_context *qpc, 3714 struct mlx4_cmd_mailbox *inbox) 3715 { 3716 enum mlx4_qp_optpar optpar = be32_to_cpu(*(__be32 *)inbox->buf); 3717 u8 pri_sched_queue; 3718 int port = mlx4_slave_convert_port( 3719 dev, slave, (qpc->pri_path.sched_queue >> 6 & 1) + 1) - 1; 3720 3721 if (port < 0) 3722 return -EINVAL; 3723 3724 pri_sched_queue = (qpc->pri_path.sched_queue & ~(1 << 6)) | 3725 ((port & 1) << 6); 3726 3727 if (optpar & (MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH | MLX4_QP_OPTPAR_SCHED_QUEUE) || 3728 qpc->pri_path.sched_queue || mlx4_is_eth(dev, port + 1)) { 3729 qpc->pri_path.sched_queue = pri_sched_queue; 3730 } 3731 3732 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) { 3733 port = mlx4_slave_convert_port( 3734 dev, slave, (qpc->alt_path.sched_queue >> 6 & 1) 3735 + 1) - 1; 3736 if (port < 0) 3737 return -EINVAL; 3738 qpc->alt_path.sched_queue = 3739 (qpc->alt_path.sched_queue & ~(1 << 6)) | 3740 (port & 1) << 6; 3741 } 3742 return 0; 3743 } 3744 3745 static int roce_verify_mac(struct mlx4_dev *dev, int slave, 3746 struct mlx4_qp_context *qpc, 3747 struct mlx4_cmd_mailbox *inbox) 3748 { 3749 u64 mac; 3750 int port; 3751 u32 ts = (be32_to_cpu(qpc->flags) >> 16) & 0xff; 3752 u8 sched = *(u8 *)(inbox->buf + 64); 3753 u8 smac_ix; 3754 3755 port = (sched >> 6 & 1) + 1; 3756 if (mlx4_is_eth(dev, port) && (ts != MLX4_QP_ST_MLX)) { 3757 smac_ix = qpc->pri_path.grh_mylmc & 0x7f; 3758 if (mac_find_smac_ix_in_slave(dev, slave, port, smac_ix, &mac)) 3759 return -ENOENT; 3760 } 3761 return 0; 3762 } 3763 3764 int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave, 3765 struct mlx4_vhcr *vhcr, 3766 struct mlx4_cmd_mailbox *inbox, 3767 struct mlx4_cmd_mailbox *outbox, 3768 struct mlx4_cmd_info *cmd) 3769 { 3770 int err; 3771 struct mlx4_qp_context *qpc = inbox->buf + 8; 3772 int qpn = vhcr->in_modifier & 0x7fffff; 3773 struct res_qp *qp; 3774 u8 orig_sched_queue; 3775 __be32 orig_param3 = qpc->param3; 3776 u8 orig_vlan_control = qpc->pri_path.vlan_control; 3777 u8 orig_fvl_rx = qpc->pri_path.fvl_rx; 3778 u8 orig_pri_path_fl = qpc->pri_path.fl; 3779 u8 orig_vlan_index = qpc->pri_path.vlan_index; 3780 u8 orig_feup = qpc->pri_path.feup; 3781 3782 err = adjust_qp_sched_queue(dev, slave, qpc, inbox); 3783 if (err) 3784 return err; 3785 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_INIT2RTR, slave); 3786 if (err) 3787 return err; 3788 3789 if (roce_verify_mac(dev, slave, qpc, inbox)) 3790 return -EINVAL; 3791 3792 update_pkey_index(dev, slave, inbox); 3793 update_gid(dev, inbox, (u8)slave); 3794 adjust_proxy_tun_qkey(dev, vhcr, qpc); 3795 orig_sched_queue = qpc->pri_path.sched_queue; 3796 3797 err = get_res(dev, slave, qpn, RES_QP, &qp); 3798 if (err) 3799 return err; 3800 if (qp->com.from_state != RES_QP_HW) { 3801 err = -EBUSY; 3802 goto out; 3803 } 3804 3805 err = update_vport_qp_param(dev, inbox, slave, qpn); 3806 if (err) 3807 goto out; 3808 3809 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3810 out: 3811 /* if no error, save sched queue value passed in by VF. This is 3812 * essentially the QOS value provided by the VF. This will be useful 3813 * if we allow dynamic changes from VST back to VGT 3814 */ 3815 if (!err) { 3816 qp->sched_queue = orig_sched_queue; 3817 qp->param3 = orig_param3; 3818 qp->vlan_control = orig_vlan_control; 3819 qp->fvl_rx = orig_fvl_rx; 3820 qp->pri_path_fl = orig_pri_path_fl; 3821 qp->vlan_index = orig_vlan_index; 3822 qp->feup = orig_feup; 3823 } 3824 put_res(dev, slave, qpn, RES_QP); 3825 return err; 3826 } 3827 3828 int mlx4_RTR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave, 3829 struct mlx4_vhcr *vhcr, 3830 struct mlx4_cmd_mailbox *inbox, 3831 struct mlx4_cmd_mailbox *outbox, 3832 struct mlx4_cmd_info *cmd) 3833 { 3834 int err; 3835 struct mlx4_qp_context *context = inbox->buf + 8; 3836 3837 err = adjust_qp_sched_queue(dev, slave, context, inbox); 3838 if (err) 3839 return err; 3840 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_RTR2RTS, slave); 3841 if (err) 3842 return err; 3843 3844 update_pkey_index(dev, slave, inbox); 3845 update_gid(dev, inbox, (u8)slave); 3846 adjust_proxy_tun_qkey(dev, vhcr, context); 3847 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3848 } 3849 3850 int mlx4_RTS2RTS_QP_wrapper(struct mlx4_dev *dev, int slave, 3851 struct mlx4_vhcr *vhcr, 3852 struct mlx4_cmd_mailbox *inbox, 3853 struct mlx4_cmd_mailbox *outbox, 3854 struct mlx4_cmd_info *cmd) 3855 { 3856 int err; 3857 struct mlx4_qp_context *context = inbox->buf + 8; 3858 3859 err = adjust_qp_sched_queue(dev, slave, context, inbox); 3860 if (err) 3861 return err; 3862 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_RTS2RTS, slave); 3863 if (err) 3864 return err; 3865 3866 update_pkey_index(dev, slave, inbox); 3867 update_gid(dev, inbox, (u8)slave); 3868 adjust_proxy_tun_qkey(dev, vhcr, context); 3869 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3870 } 3871 3872 3873 int mlx4_SQERR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave, 3874 struct mlx4_vhcr *vhcr, 3875 struct mlx4_cmd_mailbox *inbox, 3876 struct mlx4_cmd_mailbox *outbox, 3877 struct mlx4_cmd_info *cmd) 3878 { 3879 struct mlx4_qp_context *context = inbox->buf + 8; 3880 int err = adjust_qp_sched_queue(dev, slave, context, inbox); 3881 if (err) 3882 return err; 3883 adjust_proxy_tun_qkey(dev, vhcr, context); 3884 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3885 } 3886 3887 int mlx4_SQD2SQD_QP_wrapper(struct mlx4_dev *dev, int slave, 3888 struct mlx4_vhcr *vhcr, 3889 struct mlx4_cmd_mailbox *inbox, 3890 struct mlx4_cmd_mailbox *outbox, 3891 struct mlx4_cmd_info *cmd) 3892 { 3893 int err; 3894 struct mlx4_qp_context *context = inbox->buf + 8; 3895 3896 err = adjust_qp_sched_queue(dev, slave, context, inbox); 3897 if (err) 3898 return err; 3899 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_SQD2SQD, slave); 3900 if (err) 3901 return err; 3902 3903 adjust_proxy_tun_qkey(dev, vhcr, context); 3904 update_gid(dev, inbox, (u8)slave); 3905 update_pkey_index(dev, slave, inbox); 3906 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3907 } 3908 3909 int mlx4_SQD2RTS_QP_wrapper(struct mlx4_dev *dev, int slave, 3910 struct mlx4_vhcr *vhcr, 3911 struct mlx4_cmd_mailbox *inbox, 3912 struct mlx4_cmd_mailbox *outbox, 3913 struct mlx4_cmd_info *cmd) 3914 { 3915 int err; 3916 struct mlx4_qp_context *context = inbox->buf + 8; 3917 3918 err = adjust_qp_sched_queue(dev, slave, context, inbox); 3919 if (err) 3920 return err; 3921 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_SQD2RTS, slave); 3922 if (err) 3923 return err; 3924 3925 adjust_proxy_tun_qkey(dev, vhcr, context); 3926 update_gid(dev, inbox, (u8)slave); 3927 update_pkey_index(dev, slave, inbox); 3928 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3929 } 3930 3931 int mlx4_2RST_QP_wrapper(struct mlx4_dev *dev, int slave, 3932 struct mlx4_vhcr *vhcr, 3933 struct mlx4_cmd_mailbox *inbox, 3934 struct mlx4_cmd_mailbox *outbox, 3935 struct mlx4_cmd_info *cmd) 3936 { 3937 int err; 3938 int qpn = vhcr->in_modifier & 0x7fffff; 3939 struct res_qp *qp; 3940 3941 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, &qp, 0); 3942 if (err) 3943 return err; 3944 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3945 if (err) 3946 goto ex_abort; 3947 3948 atomic_dec(&qp->mtt->ref_count); 3949 atomic_dec(&qp->rcq->ref_count); 3950 atomic_dec(&qp->scq->ref_count); 3951 if (qp->srq) 3952 atomic_dec(&qp->srq->ref_count); 3953 res_end_move(dev, slave, RES_QP, qpn); 3954 return 0; 3955 3956 ex_abort: 3957 res_abort_move(dev, slave, RES_QP, qpn); 3958 3959 return err; 3960 } 3961 3962 static struct res_gid *find_gid(struct mlx4_dev *dev, int slave, 3963 struct res_qp *rqp, u8 *gid) 3964 { 3965 struct res_gid *res; 3966 3967 list_for_each_entry(res, &rqp->mcg_list, list) { 3968 if (!memcmp(res->gid, gid, 16)) 3969 return res; 3970 } 3971 return NULL; 3972 } 3973 3974 static int add_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp, 3975 u8 *gid, enum mlx4_protocol prot, 3976 enum mlx4_steer_type steer, u64 reg_id) 3977 { 3978 struct res_gid *res; 3979 int err; 3980 3981 res = kzalloc(sizeof *res, GFP_KERNEL); 3982 if (!res) 3983 return -ENOMEM; 3984 3985 spin_lock_irq(&rqp->mcg_spl); 3986 if (find_gid(dev, slave, rqp, gid)) { 3987 kfree(res); 3988 err = -EEXIST; 3989 } else { 3990 memcpy(res->gid, gid, 16); 3991 res->prot = prot; 3992 res->steer = steer; 3993 res->reg_id = reg_id; 3994 list_add_tail(&res->list, &rqp->mcg_list); 3995 err = 0; 3996 } 3997 spin_unlock_irq(&rqp->mcg_spl); 3998 3999 return err; 4000 } 4001 4002 static int rem_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp, 4003 u8 *gid, enum mlx4_protocol prot, 4004 enum mlx4_steer_type steer, u64 *reg_id) 4005 { 4006 struct res_gid *res; 4007 int err; 4008 4009 spin_lock_irq(&rqp->mcg_spl); 4010 res = find_gid(dev, slave, rqp, gid); 4011 if (!res || res->prot != prot || res->steer != steer) 4012 err = -EINVAL; 4013 else { 4014 *reg_id = res->reg_id; 4015 list_del(&res->list); 4016 kfree(res); 4017 err = 0; 4018 } 4019 spin_unlock_irq(&rqp->mcg_spl); 4020 4021 return err; 4022 } 4023 4024 static int qp_attach(struct mlx4_dev *dev, int slave, struct mlx4_qp *qp, 4025 u8 gid[16], int block_loopback, enum mlx4_protocol prot, 4026 enum mlx4_steer_type type, u64 *reg_id) 4027 { 4028 switch (dev->caps.steering_mode) { 4029 case MLX4_STEERING_MODE_DEVICE_MANAGED: { 4030 int port = mlx4_slave_convert_port(dev, slave, gid[5]); 4031 if (port < 0) 4032 return port; 4033 return mlx4_trans_to_dmfs_attach(dev, qp, gid, port, 4034 block_loopback, prot, 4035 reg_id); 4036 } 4037 case MLX4_STEERING_MODE_B0: 4038 if (prot == MLX4_PROT_ETH) { 4039 int port = mlx4_slave_convert_port(dev, slave, gid[5]); 4040 if (port < 0) 4041 return port; 4042 gid[5] = port; 4043 } 4044 return mlx4_qp_attach_common(dev, qp, gid, 4045 block_loopback, prot, type); 4046 default: 4047 return -EINVAL; 4048 } 4049 } 4050 4051 static int qp_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, 4052 u8 gid[16], enum mlx4_protocol prot, 4053 enum mlx4_steer_type type, u64 reg_id) 4054 { 4055 switch (dev->caps.steering_mode) { 4056 case MLX4_STEERING_MODE_DEVICE_MANAGED: 4057 return mlx4_flow_detach(dev, reg_id); 4058 case MLX4_STEERING_MODE_B0: 4059 return mlx4_qp_detach_common(dev, qp, gid, prot, type); 4060 default: 4061 return -EINVAL; 4062 } 4063 } 4064 4065 static int mlx4_adjust_port(struct mlx4_dev *dev, int slave, 4066 u8 *gid, enum mlx4_protocol prot) 4067 { 4068 int real_port; 4069 4070 if (prot != MLX4_PROT_ETH) 4071 return 0; 4072 4073 if (dev->caps.steering_mode == MLX4_STEERING_MODE_B0 || 4074 dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) { 4075 real_port = mlx4_slave_convert_port(dev, slave, gid[5]); 4076 if (real_port < 0) 4077 return -EINVAL; 4078 gid[5] = real_port; 4079 } 4080 4081 return 0; 4082 } 4083 4084 int mlx4_QP_ATTACH_wrapper(struct mlx4_dev *dev, int slave, 4085 struct mlx4_vhcr *vhcr, 4086 struct mlx4_cmd_mailbox *inbox, 4087 struct mlx4_cmd_mailbox *outbox, 4088 struct mlx4_cmd_info *cmd) 4089 { 4090 struct mlx4_qp qp; /* dummy for calling attach/detach */ 4091 u8 *gid = inbox->buf; 4092 enum mlx4_protocol prot = (vhcr->in_modifier >> 28) & 0x7; 4093 int err; 4094 int qpn; 4095 struct res_qp *rqp; 4096 u64 reg_id = 0; 4097 int attach = vhcr->op_modifier; 4098 int block_loopback = vhcr->in_modifier >> 31; 4099 u8 steer_type_mask = 2; 4100 enum mlx4_steer_type type = (gid[7] & steer_type_mask) >> 1; 4101 4102 qpn = vhcr->in_modifier & 0xffffff; 4103 err = get_res(dev, slave, qpn, RES_QP, &rqp); 4104 if (err) 4105 return err; 4106 4107 qp.qpn = qpn; 4108 if (attach) { 4109 err = qp_attach(dev, slave, &qp, gid, block_loopback, prot, 4110 type, ®_id); 4111 if (err) { 4112 pr_err("Fail to attach rule to qp 0x%x\n", qpn); 4113 goto ex_put; 4114 } 4115 err = add_mcg_res(dev, slave, rqp, gid, prot, type, reg_id); 4116 if (err) 4117 goto ex_detach; 4118 } else { 4119 err = mlx4_adjust_port(dev, slave, gid, prot); 4120 if (err) 4121 goto ex_put; 4122 4123 err = rem_mcg_res(dev, slave, rqp, gid, prot, type, ®_id); 4124 if (err) 4125 goto ex_put; 4126 4127 err = qp_detach(dev, &qp, gid, prot, type, reg_id); 4128 if (err) 4129 pr_err("Fail to detach rule from qp 0x%x reg_id = 0x%llx\n", 4130 qpn, reg_id); 4131 } 4132 put_res(dev, slave, qpn, RES_QP); 4133 return err; 4134 4135 ex_detach: 4136 qp_detach(dev, &qp, gid, prot, type, reg_id); 4137 ex_put: 4138 put_res(dev, slave, qpn, RES_QP); 4139 return err; 4140 } 4141 4142 /* 4143 * MAC validation for Flow Steering rules. 4144 * VF can attach rules only with a mac address which is assigned to it. 4145 */ 4146 static int validate_eth_header_mac(int slave, struct _rule_hw *eth_header, 4147 struct list_head *rlist) 4148 { 4149 struct mac_res *res, *tmp; 4150 __be64 be_mac; 4151 4152 /* make sure it isn't multicast or broadcast mac*/ 4153 if (!is_multicast_ether_addr(eth_header->eth.dst_mac) && 4154 !is_broadcast_ether_addr(eth_header->eth.dst_mac)) { 4155 list_for_each_entry_safe(res, tmp, rlist, list) { 4156 be_mac = cpu_to_be64(res->mac << 16); 4157 if (ether_addr_equal((u8 *)&be_mac, eth_header->eth.dst_mac)) 4158 return 0; 4159 } 4160 pr_err("MAC %pM doesn't belong to VF %d, Steering rule rejected\n", 4161 eth_header->eth.dst_mac, slave); 4162 return -EINVAL; 4163 } 4164 return 0; 4165 } 4166 4167 /* 4168 * In case of missing eth header, append eth header with a MAC address 4169 * assigned to the VF. 4170 */ 4171 static int add_eth_header(struct mlx4_dev *dev, int slave, 4172 struct mlx4_cmd_mailbox *inbox, 4173 struct list_head *rlist, int header_id) 4174 { 4175 struct mac_res *res, *tmp; 4176 u8 port; 4177 struct mlx4_net_trans_rule_hw_ctrl *ctrl; 4178 struct mlx4_net_trans_rule_hw_eth *eth_header; 4179 struct mlx4_net_trans_rule_hw_ipv4 *ip_header; 4180 struct mlx4_net_trans_rule_hw_tcp_udp *l4_header; 4181 __be64 be_mac = 0; 4182 __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16); 4183 4184 ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf; 4185 port = ctrl->port; 4186 eth_header = (struct mlx4_net_trans_rule_hw_eth *)(ctrl + 1); 4187 4188 /* Clear a space in the inbox for eth header */ 4189 switch (header_id) { 4190 case MLX4_NET_TRANS_RULE_ID_IPV4: 4191 ip_header = 4192 (struct mlx4_net_trans_rule_hw_ipv4 *)(eth_header + 1); 4193 memmove(ip_header, eth_header, 4194 sizeof(*ip_header) + sizeof(*l4_header)); 4195 break; 4196 case MLX4_NET_TRANS_RULE_ID_TCP: 4197 case MLX4_NET_TRANS_RULE_ID_UDP: 4198 l4_header = (struct mlx4_net_trans_rule_hw_tcp_udp *) 4199 (eth_header + 1); 4200 memmove(l4_header, eth_header, sizeof(*l4_header)); 4201 break; 4202 default: 4203 return -EINVAL; 4204 } 4205 list_for_each_entry_safe(res, tmp, rlist, list) { 4206 if (port == res->port) { 4207 be_mac = cpu_to_be64(res->mac << 16); 4208 break; 4209 } 4210 } 4211 if (!be_mac) { 4212 pr_err("Failed adding eth header to FS rule, Can't find matching MAC for port %d\n", 4213 port); 4214 return -EINVAL; 4215 } 4216 4217 memset(eth_header, 0, sizeof(*eth_header)); 4218 eth_header->size = sizeof(*eth_header) >> 2; 4219 eth_header->id = cpu_to_be16(__sw_id_hw[MLX4_NET_TRANS_RULE_ID_ETH]); 4220 memcpy(eth_header->dst_mac, &be_mac, ETH_ALEN); 4221 memcpy(eth_header->dst_mac_msk, &mac_msk, ETH_ALEN); 4222 4223 return 0; 4224 4225 } 4226 4227 #define MLX4_UPD_QP_PATH_MASK_SUPPORTED ( \ 4228 1ULL << MLX4_UPD_QP_PATH_MASK_MAC_INDEX |\ 4229 1ULL << MLX4_UPD_QP_PATH_MASK_ETH_SRC_CHECK_MC_LB) 4230 int mlx4_UPDATE_QP_wrapper(struct mlx4_dev *dev, int slave, 4231 struct mlx4_vhcr *vhcr, 4232 struct mlx4_cmd_mailbox *inbox, 4233 struct mlx4_cmd_mailbox *outbox, 4234 struct mlx4_cmd_info *cmd_info) 4235 { 4236 int err; 4237 u32 qpn = vhcr->in_modifier & 0xffffff; 4238 struct res_qp *rqp; 4239 u64 mac; 4240 unsigned port; 4241 u64 pri_addr_path_mask; 4242 struct mlx4_update_qp_context *cmd; 4243 int smac_index; 4244 4245 cmd = (struct mlx4_update_qp_context *)inbox->buf; 4246 4247 pri_addr_path_mask = be64_to_cpu(cmd->primary_addr_path_mask); 4248 if (cmd->qp_mask || cmd->secondary_addr_path_mask || 4249 (pri_addr_path_mask & ~MLX4_UPD_QP_PATH_MASK_SUPPORTED)) 4250 return -EPERM; 4251 4252 if ((pri_addr_path_mask & 4253 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_SRC_CHECK_MC_LB)) && 4254 !(dev->caps.flags2 & 4255 MLX4_DEV_CAP_FLAG2_UPDATE_QP_SRC_CHECK_LB)) { 4256 mlx4_warn(dev, "Src check LB for slave %d isn't supported\n", 4257 slave); 4258 return -ENOTSUPP; 4259 } 4260 4261 /* Just change the smac for the QP */ 4262 err = get_res(dev, slave, qpn, RES_QP, &rqp); 4263 if (err) { 4264 mlx4_err(dev, "Updating qpn 0x%x for slave %d rejected\n", qpn, slave); 4265 return err; 4266 } 4267 4268 port = (rqp->sched_queue >> 6 & 1) + 1; 4269 4270 if (pri_addr_path_mask & (1ULL << MLX4_UPD_QP_PATH_MASK_MAC_INDEX)) { 4271 smac_index = cmd->qp_context.pri_path.grh_mylmc; 4272 err = mac_find_smac_ix_in_slave(dev, slave, port, 4273 smac_index, &mac); 4274 4275 if (err) { 4276 mlx4_err(dev, "Failed to update qpn 0x%x, MAC is invalid. smac_ix: %d\n", 4277 qpn, smac_index); 4278 goto err_mac; 4279 } 4280 } 4281 4282 err = mlx4_cmd(dev, inbox->dma, 4283 vhcr->in_modifier, 0, 4284 MLX4_CMD_UPDATE_QP, MLX4_CMD_TIME_CLASS_A, 4285 MLX4_CMD_NATIVE); 4286 if (err) { 4287 mlx4_err(dev, "Failed to update qpn on qpn 0x%x, command failed\n", qpn); 4288 goto err_mac; 4289 } 4290 4291 err_mac: 4292 put_res(dev, slave, qpn, RES_QP); 4293 return err; 4294 } 4295 4296 static u32 qp_attach_mbox_size(void *mbox) 4297 { 4298 u32 size = sizeof(struct mlx4_net_trans_rule_hw_ctrl); 4299 struct _rule_hw *rule_header; 4300 4301 rule_header = (struct _rule_hw *)(mbox + size); 4302 4303 while (rule_header->size) { 4304 size += rule_header->size * sizeof(u32); 4305 rule_header += 1; 4306 } 4307 return size; 4308 } 4309 4310 static int mlx4_do_mirror_rule(struct mlx4_dev *dev, struct res_fs_rule *fs_rule); 4311 4312 int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave, 4313 struct mlx4_vhcr *vhcr, 4314 struct mlx4_cmd_mailbox *inbox, 4315 struct mlx4_cmd_mailbox *outbox, 4316 struct mlx4_cmd_info *cmd) 4317 { 4318 4319 struct mlx4_priv *priv = mlx4_priv(dev); 4320 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 4321 struct list_head *rlist = &tracker->slave_list[slave].res_list[RES_MAC]; 4322 int err; 4323 int qpn; 4324 struct res_qp *rqp; 4325 struct mlx4_net_trans_rule_hw_ctrl *ctrl; 4326 struct _rule_hw *rule_header; 4327 int header_id; 4328 struct res_fs_rule *rrule; 4329 u32 mbox_size; 4330 4331 if (dev->caps.steering_mode != 4332 MLX4_STEERING_MODE_DEVICE_MANAGED) 4333 return -EOPNOTSUPP; 4334 4335 ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf; 4336 err = mlx4_slave_convert_port(dev, slave, ctrl->port); 4337 if (err <= 0) 4338 return -EINVAL; 4339 ctrl->port = err; 4340 qpn = be32_to_cpu(ctrl->qpn) & 0xffffff; 4341 err = get_res(dev, slave, qpn, RES_QP, &rqp); 4342 if (err) { 4343 pr_err("Steering rule with qpn 0x%x rejected\n", qpn); 4344 return err; 4345 } 4346 rule_header = (struct _rule_hw *)(ctrl + 1); 4347 header_id = map_hw_to_sw_id(be16_to_cpu(rule_header->id)); 4348 4349 if (header_id == MLX4_NET_TRANS_RULE_ID_ETH) 4350 mlx4_handle_eth_header_mcast_prio(ctrl, rule_header); 4351 4352 switch (header_id) { 4353 case MLX4_NET_TRANS_RULE_ID_ETH: 4354 if (validate_eth_header_mac(slave, rule_header, rlist)) { 4355 err = -EINVAL; 4356 goto err_put_qp; 4357 } 4358 break; 4359 case MLX4_NET_TRANS_RULE_ID_IB: 4360 break; 4361 case MLX4_NET_TRANS_RULE_ID_IPV4: 4362 case MLX4_NET_TRANS_RULE_ID_TCP: 4363 case MLX4_NET_TRANS_RULE_ID_UDP: 4364 pr_warn("Can't attach FS rule without L2 headers, adding L2 header\n"); 4365 if (add_eth_header(dev, slave, inbox, rlist, header_id)) { 4366 err = -EINVAL; 4367 goto err_put_qp; 4368 } 4369 vhcr->in_modifier += 4370 sizeof(struct mlx4_net_trans_rule_hw_eth) >> 2; 4371 break; 4372 default: 4373 pr_err("Corrupted mailbox\n"); 4374 err = -EINVAL; 4375 goto err_put_qp; 4376 } 4377 4378 err = mlx4_cmd_imm(dev, inbox->dma, &vhcr->out_param, 4379 vhcr->in_modifier, 0, 4380 MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A, 4381 MLX4_CMD_NATIVE); 4382 if (err) 4383 goto err_put_qp; 4384 4385 4386 err = add_res_range(dev, slave, vhcr->out_param, 1, RES_FS_RULE, qpn); 4387 if (err) { 4388 mlx4_err(dev, "Fail to add flow steering resources\n"); 4389 goto err_detach; 4390 } 4391 4392 err = get_res(dev, slave, vhcr->out_param, RES_FS_RULE, &rrule); 4393 if (err) 4394 goto err_detach; 4395 4396 mbox_size = qp_attach_mbox_size(inbox->buf); 4397 rrule->mirr_mbox = kmalloc(mbox_size, GFP_KERNEL); 4398 if (!rrule->mirr_mbox) { 4399 err = -ENOMEM; 4400 goto err_put_rule; 4401 } 4402 rrule->mirr_mbox_size = mbox_size; 4403 rrule->mirr_rule_id = 0; 4404 memcpy(rrule->mirr_mbox, inbox->buf, mbox_size); 4405 4406 /* set different port */ 4407 ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)rrule->mirr_mbox; 4408 if (ctrl->port == 1) 4409 ctrl->port = 2; 4410 else 4411 ctrl->port = 1; 4412 4413 if (mlx4_is_bonded(dev)) 4414 mlx4_do_mirror_rule(dev, rrule); 4415 4416 atomic_inc(&rqp->ref_count); 4417 4418 err_put_rule: 4419 put_res(dev, slave, vhcr->out_param, RES_FS_RULE); 4420 err_detach: 4421 /* detach rule on error */ 4422 if (err) 4423 mlx4_cmd(dev, vhcr->out_param, 0, 0, 4424 MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A, 4425 MLX4_CMD_NATIVE); 4426 err_put_qp: 4427 put_res(dev, slave, qpn, RES_QP); 4428 return err; 4429 } 4430 4431 static int mlx4_undo_mirror_rule(struct mlx4_dev *dev, struct res_fs_rule *fs_rule) 4432 { 4433 int err; 4434 4435 err = rem_res_range(dev, fs_rule->com.owner, fs_rule->com.res_id, 1, RES_FS_RULE, 0); 4436 if (err) { 4437 mlx4_err(dev, "Fail to remove flow steering resources\n"); 4438 return err; 4439 } 4440 4441 mlx4_cmd(dev, fs_rule->com.res_id, 0, 0, MLX4_QP_FLOW_STEERING_DETACH, 4442 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); 4443 return 0; 4444 } 4445 4446 int mlx4_QP_FLOW_STEERING_DETACH_wrapper(struct mlx4_dev *dev, int slave, 4447 struct mlx4_vhcr *vhcr, 4448 struct mlx4_cmd_mailbox *inbox, 4449 struct mlx4_cmd_mailbox *outbox, 4450 struct mlx4_cmd_info *cmd) 4451 { 4452 int err; 4453 struct res_qp *rqp; 4454 struct res_fs_rule *rrule; 4455 u64 mirr_reg_id; 4456 int qpn; 4457 4458 if (dev->caps.steering_mode != 4459 MLX4_STEERING_MODE_DEVICE_MANAGED) 4460 return -EOPNOTSUPP; 4461 4462 err = get_res(dev, slave, vhcr->in_param, RES_FS_RULE, &rrule); 4463 if (err) 4464 return err; 4465 4466 if (!rrule->mirr_mbox) { 4467 mlx4_err(dev, "Mirror rules cannot be removed explicitly\n"); 4468 put_res(dev, slave, vhcr->in_param, RES_FS_RULE); 4469 return -EINVAL; 4470 } 4471 mirr_reg_id = rrule->mirr_rule_id; 4472 kfree(rrule->mirr_mbox); 4473 qpn = rrule->qpn; 4474 4475 /* Release the rule form busy state before removal */ 4476 put_res(dev, slave, vhcr->in_param, RES_FS_RULE); 4477 err = get_res(dev, slave, qpn, RES_QP, &rqp); 4478 if (err) 4479 return err; 4480 4481 if (mirr_reg_id && mlx4_is_bonded(dev)) { 4482 err = get_res(dev, slave, mirr_reg_id, RES_FS_RULE, &rrule); 4483 if (err) { 4484 mlx4_err(dev, "Fail to get resource of mirror rule\n"); 4485 } else { 4486 put_res(dev, slave, mirr_reg_id, RES_FS_RULE); 4487 mlx4_undo_mirror_rule(dev, rrule); 4488 } 4489 } 4490 err = rem_res_range(dev, slave, vhcr->in_param, 1, RES_FS_RULE, 0); 4491 if (err) { 4492 mlx4_err(dev, "Fail to remove flow steering resources\n"); 4493 goto out; 4494 } 4495 4496 err = mlx4_cmd(dev, vhcr->in_param, 0, 0, 4497 MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A, 4498 MLX4_CMD_NATIVE); 4499 if (!err) 4500 atomic_dec(&rqp->ref_count); 4501 out: 4502 put_res(dev, slave, qpn, RES_QP); 4503 return err; 4504 } 4505 4506 enum { 4507 BUSY_MAX_RETRIES = 10 4508 }; 4509 4510 int mlx4_QUERY_IF_STAT_wrapper(struct mlx4_dev *dev, int slave, 4511 struct mlx4_vhcr *vhcr, 4512 struct mlx4_cmd_mailbox *inbox, 4513 struct mlx4_cmd_mailbox *outbox, 4514 struct mlx4_cmd_info *cmd) 4515 { 4516 int err; 4517 int index = vhcr->in_modifier & 0xffff; 4518 4519 err = get_res(dev, slave, index, RES_COUNTER, NULL); 4520 if (err) 4521 return err; 4522 4523 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 4524 put_res(dev, slave, index, RES_COUNTER); 4525 return err; 4526 } 4527 4528 static void detach_qp(struct mlx4_dev *dev, int slave, struct res_qp *rqp) 4529 { 4530 struct res_gid *rgid; 4531 struct res_gid *tmp; 4532 struct mlx4_qp qp; /* dummy for calling attach/detach */ 4533 4534 list_for_each_entry_safe(rgid, tmp, &rqp->mcg_list, list) { 4535 switch (dev->caps.steering_mode) { 4536 case MLX4_STEERING_MODE_DEVICE_MANAGED: 4537 mlx4_flow_detach(dev, rgid->reg_id); 4538 break; 4539 case MLX4_STEERING_MODE_B0: 4540 qp.qpn = rqp->local_qpn; 4541 (void) mlx4_qp_detach_common(dev, &qp, rgid->gid, 4542 rgid->prot, rgid->steer); 4543 break; 4544 } 4545 list_del(&rgid->list); 4546 kfree(rgid); 4547 } 4548 } 4549 4550 static int _move_all_busy(struct mlx4_dev *dev, int slave, 4551 enum mlx4_resource type, int print) 4552 { 4553 struct mlx4_priv *priv = mlx4_priv(dev); 4554 struct mlx4_resource_tracker *tracker = 4555 &priv->mfunc.master.res_tracker; 4556 struct list_head *rlist = &tracker->slave_list[slave].res_list[type]; 4557 struct res_common *r; 4558 struct res_common *tmp; 4559 int busy; 4560 4561 busy = 0; 4562 spin_lock_irq(mlx4_tlock(dev)); 4563 list_for_each_entry_safe(r, tmp, rlist, list) { 4564 if (r->owner == slave) { 4565 if (!r->removing) { 4566 if (r->state == RES_ANY_BUSY) { 4567 if (print) 4568 mlx4_dbg(dev, 4569 "%s id 0x%llx is busy\n", 4570 resource_str(type), 4571 r->res_id); 4572 ++busy; 4573 } else { 4574 r->from_state = r->state; 4575 r->state = RES_ANY_BUSY; 4576 r->removing = 1; 4577 } 4578 } 4579 } 4580 } 4581 spin_unlock_irq(mlx4_tlock(dev)); 4582 4583 return busy; 4584 } 4585 4586 static int move_all_busy(struct mlx4_dev *dev, int slave, 4587 enum mlx4_resource type) 4588 { 4589 unsigned long begin; 4590 int busy; 4591 4592 begin = jiffies; 4593 do { 4594 busy = _move_all_busy(dev, slave, type, 0); 4595 if (time_after(jiffies, begin + 5 * HZ)) 4596 break; 4597 if (busy) 4598 cond_resched(); 4599 } while (busy); 4600 4601 if (busy) 4602 busy = _move_all_busy(dev, slave, type, 1); 4603 4604 return busy; 4605 } 4606 static void rem_slave_qps(struct mlx4_dev *dev, int slave) 4607 { 4608 struct mlx4_priv *priv = mlx4_priv(dev); 4609 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 4610 struct list_head *qp_list = 4611 &tracker->slave_list[slave].res_list[RES_QP]; 4612 struct res_qp *qp; 4613 struct res_qp *tmp; 4614 int state; 4615 u64 in_param; 4616 int qpn; 4617 int err; 4618 4619 err = move_all_busy(dev, slave, RES_QP); 4620 if (err) 4621 mlx4_warn(dev, "rem_slave_qps: Could not move all qps to busy for slave %d\n", 4622 slave); 4623 4624 spin_lock_irq(mlx4_tlock(dev)); 4625 list_for_each_entry_safe(qp, tmp, qp_list, com.list) { 4626 spin_unlock_irq(mlx4_tlock(dev)); 4627 if (qp->com.owner == slave) { 4628 qpn = qp->com.res_id; 4629 detach_qp(dev, slave, qp); 4630 state = qp->com.from_state; 4631 while (state != 0) { 4632 switch (state) { 4633 case RES_QP_RESERVED: 4634 spin_lock_irq(mlx4_tlock(dev)); 4635 rb_erase(&qp->com.node, 4636 &tracker->res_tree[RES_QP]); 4637 list_del(&qp->com.list); 4638 spin_unlock_irq(mlx4_tlock(dev)); 4639 if (!valid_reserved(dev, slave, qpn)) { 4640 __mlx4_qp_release_range(dev, qpn, 1); 4641 mlx4_release_resource(dev, slave, 4642 RES_QP, 1, 0); 4643 } 4644 kfree(qp); 4645 state = 0; 4646 break; 4647 case RES_QP_MAPPED: 4648 if (!valid_reserved(dev, slave, qpn)) 4649 __mlx4_qp_free_icm(dev, qpn); 4650 state = RES_QP_RESERVED; 4651 break; 4652 case RES_QP_HW: 4653 in_param = slave; 4654 err = mlx4_cmd(dev, in_param, 4655 qp->local_qpn, 2, 4656 MLX4_CMD_2RST_QP, 4657 MLX4_CMD_TIME_CLASS_A, 4658 MLX4_CMD_NATIVE); 4659 if (err) 4660 mlx4_dbg(dev, "rem_slave_qps: failed to move slave %d qpn %d to reset\n", 4661 slave, qp->local_qpn); 4662 atomic_dec(&qp->rcq->ref_count); 4663 atomic_dec(&qp->scq->ref_count); 4664 atomic_dec(&qp->mtt->ref_count); 4665 if (qp->srq) 4666 atomic_dec(&qp->srq->ref_count); 4667 state = RES_QP_MAPPED; 4668 break; 4669 default: 4670 state = 0; 4671 } 4672 } 4673 } 4674 spin_lock_irq(mlx4_tlock(dev)); 4675 } 4676 spin_unlock_irq(mlx4_tlock(dev)); 4677 } 4678 4679 static void rem_slave_srqs(struct mlx4_dev *dev, int slave) 4680 { 4681 struct mlx4_priv *priv = mlx4_priv(dev); 4682 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 4683 struct list_head *srq_list = 4684 &tracker->slave_list[slave].res_list[RES_SRQ]; 4685 struct res_srq *srq; 4686 struct res_srq *tmp; 4687 int state; 4688 u64 in_param; 4689 LIST_HEAD(tlist); 4690 int srqn; 4691 int err; 4692 4693 err = move_all_busy(dev, slave, RES_SRQ); 4694 if (err) 4695 mlx4_warn(dev, "rem_slave_srqs: Could not move all srqs - too busy for slave %d\n", 4696 slave); 4697 4698 spin_lock_irq(mlx4_tlock(dev)); 4699 list_for_each_entry_safe(srq, tmp, srq_list, com.list) { 4700 spin_unlock_irq(mlx4_tlock(dev)); 4701 if (srq->com.owner == slave) { 4702 srqn = srq->com.res_id; 4703 state = srq->com.from_state; 4704 while (state != 0) { 4705 switch (state) { 4706 case RES_SRQ_ALLOCATED: 4707 __mlx4_srq_free_icm(dev, srqn); 4708 spin_lock_irq(mlx4_tlock(dev)); 4709 rb_erase(&srq->com.node, 4710 &tracker->res_tree[RES_SRQ]); 4711 list_del(&srq->com.list); 4712 spin_unlock_irq(mlx4_tlock(dev)); 4713 mlx4_release_resource(dev, slave, 4714 RES_SRQ, 1, 0); 4715 kfree(srq); 4716 state = 0; 4717 break; 4718 4719 case RES_SRQ_HW: 4720 in_param = slave; 4721 err = mlx4_cmd(dev, in_param, srqn, 1, 4722 MLX4_CMD_HW2SW_SRQ, 4723 MLX4_CMD_TIME_CLASS_A, 4724 MLX4_CMD_NATIVE); 4725 if (err) 4726 mlx4_dbg(dev, "rem_slave_srqs: failed to move slave %d srq %d to SW ownership\n", 4727 slave, srqn); 4728 4729 atomic_dec(&srq->mtt->ref_count); 4730 if (srq->cq) 4731 atomic_dec(&srq->cq->ref_count); 4732 state = RES_SRQ_ALLOCATED; 4733 break; 4734 4735 default: 4736 state = 0; 4737 } 4738 } 4739 } 4740 spin_lock_irq(mlx4_tlock(dev)); 4741 } 4742 spin_unlock_irq(mlx4_tlock(dev)); 4743 } 4744 4745 static void rem_slave_cqs(struct mlx4_dev *dev, int slave) 4746 { 4747 struct mlx4_priv *priv = mlx4_priv(dev); 4748 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 4749 struct list_head *cq_list = 4750 &tracker->slave_list[slave].res_list[RES_CQ]; 4751 struct res_cq *cq; 4752 struct res_cq *tmp; 4753 int state; 4754 u64 in_param; 4755 LIST_HEAD(tlist); 4756 int cqn; 4757 int err; 4758 4759 err = move_all_busy(dev, slave, RES_CQ); 4760 if (err) 4761 mlx4_warn(dev, "rem_slave_cqs: Could not move all cqs - too busy for slave %d\n", 4762 slave); 4763 4764 spin_lock_irq(mlx4_tlock(dev)); 4765 list_for_each_entry_safe(cq, tmp, cq_list, com.list) { 4766 spin_unlock_irq(mlx4_tlock(dev)); 4767 if (cq->com.owner == slave && !atomic_read(&cq->ref_count)) { 4768 cqn = cq->com.res_id; 4769 state = cq->com.from_state; 4770 while (state != 0) { 4771 switch (state) { 4772 case RES_CQ_ALLOCATED: 4773 __mlx4_cq_free_icm(dev, cqn); 4774 spin_lock_irq(mlx4_tlock(dev)); 4775 rb_erase(&cq->com.node, 4776 &tracker->res_tree[RES_CQ]); 4777 list_del(&cq->com.list); 4778 spin_unlock_irq(mlx4_tlock(dev)); 4779 mlx4_release_resource(dev, slave, 4780 RES_CQ, 1, 0); 4781 kfree(cq); 4782 state = 0; 4783 break; 4784 4785 case RES_CQ_HW: 4786 in_param = slave; 4787 err = mlx4_cmd(dev, in_param, cqn, 1, 4788 MLX4_CMD_HW2SW_CQ, 4789 MLX4_CMD_TIME_CLASS_A, 4790 MLX4_CMD_NATIVE); 4791 if (err) 4792 mlx4_dbg(dev, "rem_slave_cqs: failed to move slave %d cq %d to SW ownership\n", 4793 slave, cqn); 4794 atomic_dec(&cq->mtt->ref_count); 4795 state = RES_CQ_ALLOCATED; 4796 break; 4797 4798 default: 4799 state = 0; 4800 } 4801 } 4802 } 4803 spin_lock_irq(mlx4_tlock(dev)); 4804 } 4805 spin_unlock_irq(mlx4_tlock(dev)); 4806 } 4807 4808 static void rem_slave_mrs(struct mlx4_dev *dev, int slave) 4809 { 4810 struct mlx4_priv *priv = mlx4_priv(dev); 4811 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 4812 struct list_head *mpt_list = 4813 &tracker->slave_list[slave].res_list[RES_MPT]; 4814 struct res_mpt *mpt; 4815 struct res_mpt *tmp; 4816 int state; 4817 u64 in_param; 4818 LIST_HEAD(tlist); 4819 int mptn; 4820 int err; 4821 4822 err = move_all_busy(dev, slave, RES_MPT); 4823 if (err) 4824 mlx4_warn(dev, "rem_slave_mrs: Could not move all mpts - too busy for slave %d\n", 4825 slave); 4826 4827 spin_lock_irq(mlx4_tlock(dev)); 4828 list_for_each_entry_safe(mpt, tmp, mpt_list, com.list) { 4829 spin_unlock_irq(mlx4_tlock(dev)); 4830 if (mpt->com.owner == slave) { 4831 mptn = mpt->com.res_id; 4832 state = mpt->com.from_state; 4833 while (state != 0) { 4834 switch (state) { 4835 case RES_MPT_RESERVED: 4836 __mlx4_mpt_release(dev, mpt->key); 4837 spin_lock_irq(mlx4_tlock(dev)); 4838 rb_erase(&mpt->com.node, 4839 &tracker->res_tree[RES_MPT]); 4840 list_del(&mpt->com.list); 4841 spin_unlock_irq(mlx4_tlock(dev)); 4842 mlx4_release_resource(dev, slave, 4843 RES_MPT, 1, 0); 4844 kfree(mpt); 4845 state = 0; 4846 break; 4847 4848 case RES_MPT_MAPPED: 4849 __mlx4_mpt_free_icm(dev, mpt->key); 4850 state = RES_MPT_RESERVED; 4851 break; 4852 4853 case RES_MPT_HW: 4854 in_param = slave; 4855 err = mlx4_cmd(dev, in_param, mptn, 0, 4856 MLX4_CMD_HW2SW_MPT, 4857 MLX4_CMD_TIME_CLASS_A, 4858 MLX4_CMD_NATIVE); 4859 if (err) 4860 mlx4_dbg(dev, "rem_slave_mrs: failed to move slave %d mpt %d to SW ownership\n", 4861 slave, mptn); 4862 if (mpt->mtt) 4863 atomic_dec(&mpt->mtt->ref_count); 4864 state = RES_MPT_MAPPED; 4865 break; 4866 default: 4867 state = 0; 4868 } 4869 } 4870 } 4871 spin_lock_irq(mlx4_tlock(dev)); 4872 } 4873 spin_unlock_irq(mlx4_tlock(dev)); 4874 } 4875 4876 static void rem_slave_mtts(struct mlx4_dev *dev, int slave) 4877 { 4878 struct mlx4_priv *priv = mlx4_priv(dev); 4879 struct mlx4_resource_tracker *tracker = 4880 &priv->mfunc.master.res_tracker; 4881 struct list_head *mtt_list = 4882 &tracker->slave_list[slave].res_list[RES_MTT]; 4883 struct res_mtt *mtt; 4884 struct res_mtt *tmp; 4885 int state; 4886 LIST_HEAD(tlist); 4887 int base; 4888 int err; 4889 4890 err = move_all_busy(dev, slave, RES_MTT); 4891 if (err) 4892 mlx4_warn(dev, "rem_slave_mtts: Could not move all mtts - too busy for slave %d\n", 4893 slave); 4894 4895 spin_lock_irq(mlx4_tlock(dev)); 4896 list_for_each_entry_safe(mtt, tmp, mtt_list, com.list) { 4897 spin_unlock_irq(mlx4_tlock(dev)); 4898 if (mtt->com.owner == slave) { 4899 base = mtt->com.res_id; 4900 state = mtt->com.from_state; 4901 while (state != 0) { 4902 switch (state) { 4903 case RES_MTT_ALLOCATED: 4904 __mlx4_free_mtt_range(dev, base, 4905 mtt->order); 4906 spin_lock_irq(mlx4_tlock(dev)); 4907 rb_erase(&mtt->com.node, 4908 &tracker->res_tree[RES_MTT]); 4909 list_del(&mtt->com.list); 4910 spin_unlock_irq(mlx4_tlock(dev)); 4911 mlx4_release_resource(dev, slave, RES_MTT, 4912 1 << mtt->order, 0); 4913 kfree(mtt); 4914 state = 0; 4915 break; 4916 4917 default: 4918 state = 0; 4919 } 4920 } 4921 } 4922 spin_lock_irq(mlx4_tlock(dev)); 4923 } 4924 spin_unlock_irq(mlx4_tlock(dev)); 4925 } 4926 4927 static int mlx4_do_mirror_rule(struct mlx4_dev *dev, struct res_fs_rule *fs_rule) 4928 { 4929 struct mlx4_cmd_mailbox *mailbox; 4930 int err; 4931 struct res_fs_rule *mirr_rule; 4932 u64 reg_id; 4933 4934 mailbox = mlx4_alloc_cmd_mailbox(dev); 4935 if (IS_ERR(mailbox)) 4936 return PTR_ERR(mailbox); 4937 4938 if (!fs_rule->mirr_mbox) { 4939 mlx4_err(dev, "rule mirroring mailbox is null\n"); 4940 return -EINVAL; 4941 } 4942 memcpy(mailbox->buf, fs_rule->mirr_mbox, fs_rule->mirr_mbox_size); 4943 err = mlx4_cmd_imm(dev, mailbox->dma, ®_id, fs_rule->mirr_mbox_size >> 2, 0, 4944 MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A, 4945 MLX4_CMD_NATIVE); 4946 mlx4_free_cmd_mailbox(dev, mailbox); 4947 4948 if (err) 4949 goto err; 4950 4951 err = add_res_range(dev, fs_rule->com.owner, reg_id, 1, RES_FS_RULE, fs_rule->qpn); 4952 if (err) 4953 goto err_detach; 4954 4955 err = get_res(dev, fs_rule->com.owner, reg_id, RES_FS_RULE, &mirr_rule); 4956 if (err) 4957 goto err_rem; 4958 4959 fs_rule->mirr_rule_id = reg_id; 4960 mirr_rule->mirr_rule_id = 0; 4961 mirr_rule->mirr_mbox_size = 0; 4962 mirr_rule->mirr_mbox = NULL; 4963 put_res(dev, fs_rule->com.owner, reg_id, RES_FS_RULE); 4964 4965 return 0; 4966 err_rem: 4967 rem_res_range(dev, fs_rule->com.owner, reg_id, 1, RES_FS_RULE, 0); 4968 err_detach: 4969 mlx4_cmd(dev, reg_id, 0, 0, MLX4_QP_FLOW_STEERING_DETACH, 4970 MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE); 4971 err: 4972 return err; 4973 } 4974 4975 static int mlx4_mirror_fs_rules(struct mlx4_dev *dev, bool bond) 4976 { 4977 struct mlx4_priv *priv = mlx4_priv(dev); 4978 struct mlx4_resource_tracker *tracker = 4979 &priv->mfunc.master.res_tracker; 4980 struct rb_root *root = &tracker->res_tree[RES_FS_RULE]; 4981 struct rb_node *p; 4982 struct res_fs_rule *fs_rule; 4983 int err = 0; 4984 LIST_HEAD(mirr_list); 4985 4986 for (p = rb_first(root); p; p = rb_next(p)) { 4987 fs_rule = rb_entry(p, struct res_fs_rule, com.node); 4988 if ((bond && fs_rule->mirr_mbox_size) || 4989 (!bond && !fs_rule->mirr_mbox_size)) 4990 list_add_tail(&fs_rule->mirr_list, &mirr_list); 4991 } 4992 4993 list_for_each_entry(fs_rule, &mirr_list, mirr_list) { 4994 if (bond) 4995 err += mlx4_do_mirror_rule(dev, fs_rule); 4996 else 4997 err += mlx4_undo_mirror_rule(dev, fs_rule); 4998 } 4999 return err; 5000 } 5001 5002 int mlx4_bond_fs_rules(struct mlx4_dev *dev) 5003 { 5004 return mlx4_mirror_fs_rules(dev, true); 5005 } 5006 5007 int mlx4_unbond_fs_rules(struct mlx4_dev *dev) 5008 { 5009 return mlx4_mirror_fs_rules(dev, false); 5010 } 5011 5012 static void rem_slave_fs_rule(struct mlx4_dev *dev, int slave) 5013 { 5014 struct mlx4_priv *priv = mlx4_priv(dev); 5015 struct mlx4_resource_tracker *tracker = 5016 &priv->mfunc.master.res_tracker; 5017 struct list_head *fs_rule_list = 5018 &tracker->slave_list[slave].res_list[RES_FS_RULE]; 5019 struct res_fs_rule *fs_rule; 5020 struct res_fs_rule *tmp; 5021 int state; 5022 u64 base; 5023 int err; 5024 5025 err = move_all_busy(dev, slave, RES_FS_RULE); 5026 if (err) 5027 mlx4_warn(dev, "rem_slave_fs_rule: Could not move all mtts to busy for slave %d\n", 5028 slave); 5029 5030 spin_lock_irq(mlx4_tlock(dev)); 5031 list_for_each_entry_safe(fs_rule, tmp, fs_rule_list, com.list) { 5032 spin_unlock_irq(mlx4_tlock(dev)); 5033 if (fs_rule->com.owner == slave) { 5034 base = fs_rule->com.res_id; 5035 state = fs_rule->com.from_state; 5036 while (state != 0) { 5037 switch (state) { 5038 case RES_FS_RULE_ALLOCATED: 5039 /* detach rule */ 5040 err = mlx4_cmd(dev, base, 0, 0, 5041 MLX4_QP_FLOW_STEERING_DETACH, 5042 MLX4_CMD_TIME_CLASS_A, 5043 MLX4_CMD_NATIVE); 5044 5045 spin_lock_irq(mlx4_tlock(dev)); 5046 rb_erase(&fs_rule->com.node, 5047 &tracker->res_tree[RES_FS_RULE]); 5048 list_del(&fs_rule->com.list); 5049 spin_unlock_irq(mlx4_tlock(dev)); 5050 kfree(fs_rule); 5051 state = 0; 5052 break; 5053 5054 default: 5055 state = 0; 5056 } 5057 } 5058 } 5059 spin_lock_irq(mlx4_tlock(dev)); 5060 } 5061 spin_unlock_irq(mlx4_tlock(dev)); 5062 } 5063 5064 static void rem_slave_eqs(struct mlx4_dev *dev, int slave) 5065 { 5066 struct mlx4_priv *priv = mlx4_priv(dev); 5067 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 5068 struct list_head *eq_list = 5069 &tracker->slave_list[slave].res_list[RES_EQ]; 5070 struct res_eq *eq; 5071 struct res_eq *tmp; 5072 int err; 5073 int state; 5074 LIST_HEAD(tlist); 5075 int eqn; 5076 5077 err = move_all_busy(dev, slave, RES_EQ); 5078 if (err) 5079 mlx4_warn(dev, "rem_slave_eqs: Could not move all eqs - too busy for slave %d\n", 5080 slave); 5081 5082 spin_lock_irq(mlx4_tlock(dev)); 5083 list_for_each_entry_safe(eq, tmp, eq_list, com.list) { 5084 spin_unlock_irq(mlx4_tlock(dev)); 5085 if (eq->com.owner == slave) { 5086 eqn = eq->com.res_id; 5087 state = eq->com.from_state; 5088 while (state != 0) { 5089 switch (state) { 5090 case RES_EQ_RESERVED: 5091 spin_lock_irq(mlx4_tlock(dev)); 5092 rb_erase(&eq->com.node, 5093 &tracker->res_tree[RES_EQ]); 5094 list_del(&eq->com.list); 5095 spin_unlock_irq(mlx4_tlock(dev)); 5096 kfree(eq); 5097 state = 0; 5098 break; 5099 5100 case RES_EQ_HW: 5101 err = mlx4_cmd(dev, slave, eqn & 0x3ff, 5102 1, MLX4_CMD_HW2SW_EQ, 5103 MLX4_CMD_TIME_CLASS_A, 5104 MLX4_CMD_NATIVE); 5105 if (err) 5106 mlx4_dbg(dev, "rem_slave_eqs: failed to move slave %d eqs %d to SW ownership\n", 5107 slave, eqn & 0x3ff); 5108 atomic_dec(&eq->mtt->ref_count); 5109 state = RES_EQ_RESERVED; 5110 break; 5111 5112 default: 5113 state = 0; 5114 } 5115 } 5116 } 5117 spin_lock_irq(mlx4_tlock(dev)); 5118 } 5119 spin_unlock_irq(mlx4_tlock(dev)); 5120 } 5121 5122 static void rem_slave_counters(struct mlx4_dev *dev, int slave) 5123 { 5124 struct mlx4_priv *priv = mlx4_priv(dev); 5125 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 5126 struct list_head *counter_list = 5127 &tracker->slave_list[slave].res_list[RES_COUNTER]; 5128 struct res_counter *counter; 5129 struct res_counter *tmp; 5130 int err; 5131 int *counters_arr = NULL; 5132 int i, j; 5133 5134 err = move_all_busy(dev, slave, RES_COUNTER); 5135 if (err) 5136 mlx4_warn(dev, "rem_slave_counters: Could not move all counters - too busy for slave %d\n", 5137 slave); 5138 5139 counters_arr = kmalloc_array(dev->caps.max_counters, 5140 sizeof(*counters_arr), GFP_KERNEL); 5141 if (!counters_arr) 5142 return; 5143 5144 do { 5145 i = 0; 5146 j = 0; 5147 spin_lock_irq(mlx4_tlock(dev)); 5148 list_for_each_entry_safe(counter, tmp, counter_list, com.list) { 5149 if (counter->com.owner == slave) { 5150 counters_arr[i++] = counter->com.res_id; 5151 rb_erase(&counter->com.node, 5152 &tracker->res_tree[RES_COUNTER]); 5153 list_del(&counter->com.list); 5154 kfree(counter); 5155 } 5156 } 5157 spin_unlock_irq(mlx4_tlock(dev)); 5158 5159 while (j < i) { 5160 __mlx4_counter_free(dev, counters_arr[j++]); 5161 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0); 5162 } 5163 } while (i); 5164 5165 kfree(counters_arr); 5166 } 5167 5168 static void rem_slave_xrcdns(struct mlx4_dev *dev, int slave) 5169 { 5170 struct mlx4_priv *priv = mlx4_priv(dev); 5171 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 5172 struct list_head *xrcdn_list = 5173 &tracker->slave_list[slave].res_list[RES_XRCD]; 5174 struct res_xrcdn *xrcd; 5175 struct res_xrcdn *tmp; 5176 int err; 5177 int xrcdn; 5178 5179 err = move_all_busy(dev, slave, RES_XRCD); 5180 if (err) 5181 mlx4_warn(dev, "rem_slave_xrcdns: Could not move all xrcdns - too busy for slave %d\n", 5182 slave); 5183 5184 spin_lock_irq(mlx4_tlock(dev)); 5185 list_for_each_entry_safe(xrcd, tmp, xrcdn_list, com.list) { 5186 if (xrcd->com.owner == slave) { 5187 xrcdn = xrcd->com.res_id; 5188 rb_erase(&xrcd->com.node, &tracker->res_tree[RES_XRCD]); 5189 list_del(&xrcd->com.list); 5190 kfree(xrcd); 5191 __mlx4_xrcd_free(dev, xrcdn); 5192 } 5193 } 5194 spin_unlock_irq(mlx4_tlock(dev)); 5195 } 5196 5197 void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave) 5198 { 5199 struct mlx4_priv *priv = mlx4_priv(dev); 5200 mlx4_reset_roce_gids(dev, slave); 5201 mutex_lock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); 5202 rem_slave_vlans(dev, slave); 5203 rem_slave_macs(dev, slave); 5204 rem_slave_fs_rule(dev, slave); 5205 rem_slave_qps(dev, slave); 5206 rem_slave_srqs(dev, slave); 5207 rem_slave_cqs(dev, slave); 5208 rem_slave_mrs(dev, slave); 5209 rem_slave_eqs(dev, slave); 5210 rem_slave_mtts(dev, slave); 5211 rem_slave_counters(dev, slave); 5212 rem_slave_xrcdns(dev, slave); 5213 mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); 5214 } 5215 5216 void mlx4_vf_immed_vlan_work_handler(struct work_struct *_work) 5217 { 5218 struct mlx4_vf_immed_vlan_work *work = 5219 container_of(_work, struct mlx4_vf_immed_vlan_work, work); 5220 struct mlx4_cmd_mailbox *mailbox; 5221 struct mlx4_update_qp_context *upd_context; 5222 struct mlx4_dev *dev = &work->priv->dev; 5223 struct mlx4_resource_tracker *tracker = 5224 &work->priv->mfunc.master.res_tracker; 5225 struct list_head *qp_list = 5226 &tracker->slave_list[work->slave].res_list[RES_QP]; 5227 struct res_qp *qp; 5228 struct res_qp *tmp; 5229 u64 qp_path_mask_vlan_ctrl = 5230 ((1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_UNTAGGED) | 5231 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_1P) | 5232 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_TAGGED) | 5233 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_UNTAGGED) | 5234 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_1P) | 5235 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_TAGGED)); 5236 5237 u64 qp_path_mask = ((1ULL << MLX4_UPD_QP_PATH_MASK_VLAN_INDEX) | 5238 (1ULL << MLX4_UPD_QP_PATH_MASK_FVL) | 5239 (1ULL << MLX4_UPD_QP_PATH_MASK_CV) | 5240 (1ULL << MLX4_UPD_QP_PATH_MASK_SV) | 5241 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_HIDE_CQE_VLAN) | 5242 (1ULL << MLX4_UPD_QP_PATH_MASK_FEUP) | 5243 (1ULL << MLX4_UPD_QP_PATH_MASK_FVL_RX) | 5244 (1ULL << MLX4_UPD_QP_PATH_MASK_SCHED_QUEUE)); 5245 5246 int err; 5247 int port, errors = 0; 5248 u8 vlan_control; 5249 5250 if (mlx4_is_slave(dev)) { 5251 mlx4_warn(dev, "Trying to update-qp in slave %d\n", 5252 work->slave); 5253 goto out; 5254 } 5255 5256 mailbox = mlx4_alloc_cmd_mailbox(dev); 5257 if (IS_ERR(mailbox)) 5258 goto out; 5259 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE) /* block all */ 5260 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | 5261 MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED | 5262 MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED | 5263 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED | 5264 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED | 5265 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED; 5266 else if (!work->vlan_id) 5267 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | 5268 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED; 5269 else if (work->vlan_proto == htons(ETH_P_8021AD)) 5270 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED | 5271 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | 5272 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED | 5273 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED; 5274 else /* vst 802.1Q */ 5275 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | 5276 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED | 5277 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED; 5278 5279 upd_context = mailbox->buf; 5280 upd_context->qp_mask = cpu_to_be64(1ULL << MLX4_UPD_QP_MASK_VSD); 5281 5282 spin_lock_irq(mlx4_tlock(dev)); 5283 list_for_each_entry_safe(qp, tmp, qp_list, com.list) { 5284 spin_unlock_irq(mlx4_tlock(dev)); 5285 if (qp->com.owner == work->slave) { 5286 if (qp->com.from_state != RES_QP_HW || 5287 !qp->sched_queue || /* no INIT2RTR trans yet */ 5288 mlx4_is_qp_reserved(dev, qp->local_qpn) || 5289 qp->qpc_flags & (1 << MLX4_RSS_QPC_FLAG_OFFSET)) { 5290 spin_lock_irq(mlx4_tlock(dev)); 5291 continue; 5292 } 5293 port = (qp->sched_queue >> 6 & 1) + 1; 5294 if (port != work->port) { 5295 spin_lock_irq(mlx4_tlock(dev)); 5296 continue; 5297 } 5298 if (MLX4_QP_ST_RC == ((qp->qpc_flags >> 16) & 0xff)) 5299 upd_context->primary_addr_path_mask = cpu_to_be64(qp_path_mask); 5300 else 5301 upd_context->primary_addr_path_mask = 5302 cpu_to_be64(qp_path_mask | qp_path_mask_vlan_ctrl); 5303 if (work->vlan_id == MLX4_VGT) { 5304 upd_context->qp_context.param3 = qp->param3; 5305 upd_context->qp_context.pri_path.vlan_control = qp->vlan_control; 5306 upd_context->qp_context.pri_path.fvl_rx = qp->fvl_rx; 5307 upd_context->qp_context.pri_path.vlan_index = qp->vlan_index; 5308 upd_context->qp_context.pri_path.fl = qp->pri_path_fl; 5309 upd_context->qp_context.pri_path.feup = qp->feup; 5310 upd_context->qp_context.pri_path.sched_queue = 5311 qp->sched_queue; 5312 } else { 5313 upd_context->qp_context.param3 = qp->param3 & ~cpu_to_be32(MLX4_STRIP_VLAN); 5314 upd_context->qp_context.pri_path.vlan_control = vlan_control; 5315 upd_context->qp_context.pri_path.vlan_index = work->vlan_ix; 5316 upd_context->qp_context.pri_path.fvl_rx = 5317 qp->fvl_rx | MLX4_FVL_RX_FORCE_ETH_VLAN; 5318 upd_context->qp_context.pri_path.fl = 5319 qp->pri_path_fl | MLX4_FL_ETH_HIDE_CQE_VLAN; 5320 if (work->vlan_proto == htons(ETH_P_8021AD)) 5321 upd_context->qp_context.pri_path.fl |= MLX4_FL_SV; 5322 else 5323 upd_context->qp_context.pri_path.fl |= MLX4_FL_CV; 5324 upd_context->qp_context.pri_path.feup = 5325 qp->feup | MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN; 5326 upd_context->qp_context.pri_path.sched_queue = 5327 qp->sched_queue & 0xC7; 5328 upd_context->qp_context.pri_path.sched_queue |= 5329 ((work->qos & 0x7) << 3); 5330 upd_context->qp_mask |= 5331 cpu_to_be64(1ULL << 5332 MLX4_UPD_QP_MASK_QOS_VPP); 5333 upd_context->qp_context.qos_vport = 5334 work->qos_vport; 5335 } 5336 5337 err = mlx4_cmd(dev, mailbox->dma, 5338 qp->local_qpn & 0xffffff, 5339 0, MLX4_CMD_UPDATE_QP, 5340 MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); 5341 if (err) { 5342 mlx4_info(dev, "UPDATE_QP failed for slave %d, port %d, qpn %d (%d)\n", 5343 work->slave, port, qp->local_qpn, err); 5344 errors++; 5345 } 5346 } 5347 spin_lock_irq(mlx4_tlock(dev)); 5348 } 5349 spin_unlock_irq(mlx4_tlock(dev)); 5350 mlx4_free_cmd_mailbox(dev, mailbox); 5351 5352 if (errors) 5353 mlx4_err(dev, "%d UPDATE_QP failures for slave %d, port %d\n", 5354 errors, work->slave, work->port); 5355 5356 /* unregister previous vlan_id if needed and we had no errors 5357 * while updating the QPs 5358 */ 5359 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN && !errors && 5360 NO_INDX != work->orig_vlan_ix) 5361 __mlx4_unregister_vlan(&work->priv->dev, work->port, 5362 work->orig_vlan_id); 5363 out: 5364 kfree(work); 5365 return; 5366 } 5367