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