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->num_vfs) 313 return -EINVAL; 314 315 spin_lock(&res_alloc->alloc_lock); 316 allocated = (port > 0) ? 317 res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] : 318 res_alloc->allocated[slave]; 319 free = (port > 0) ? res_alloc->res_port_free[port - 1] : 320 res_alloc->res_free; 321 reserved = (port > 0) ? res_alloc->res_port_rsvd[port - 1] : 322 res_alloc->res_reserved; 323 guaranteed = res_alloc->guaranteed[slave]; 324 325 if (allocated + count > res_alloc->quota[slave]) { 326 mlx4_warn(dev, "VF %d port %d res %s: quota exceeded, count %d alloc %d quota %d\n", 327 slave, port, resource_str(res_type), count, 328 allocated, res_alloc->quota[slave]); 329 goto out; 330 } 331 332 if (allocated + count <= guaranteed) { 333 err = 0; 334 from_rsvd = count; 335 } else { 336 /* portion may need to be obtained from free area */ 337 if (guaranteed - allocated > 0) 338 from_free = count - (guaranteed - allocated); 339 else 340 from_free = count; 341 342 from_rsvd = count - from_free; 343 344 if (free - from_free >= reserved) 345 err = 0; 346 else 347 mlx4_warn(dev, "VF %d port %d res %s: free pool empty, free %d from_free %d rsvd %d\n", 348 slave, port, resource_str(res_type), free, 349 from_free, reserved); 350 } 351 352 if (!err) { 353 /* grant the request */ 354 if (port > 0) { 355 res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] += count; 356 res_alloc->res_port_free[port - 1] -= count; 357 res_alloc->res_port_rsvd[port - 1] -= from_rsvd; 358 } else { 359 res_alloc->allocated[slave] += count; 360 res_alloc->res_free -= count; 361 res_alloc->res_reserved -= from_rsvd; 362 } 363 } 364 365 out: 366 spin_unlock(&res_alloc->alloc_lock); 367 return err; 368 } 369 370 static inline void mlx4_release_resource(struct mlx4_dev *dev, int slave, 371 enum mlx4_resource res_type, int count, 372 int port) 373 { 374 struct mlx4_priv *priv = mlx4_priv(dev); 375 struct resource_allocator *res_alloc = 376 &priv->mfunc.master.res_tracker.res_alloc[res_type]; 377 int allocated, guaranteed, from_rsvd; 378 379 if (slave > dev->num_vfs) 380 return; 381 382 spin_lock(&res_alloc->alloc_lock); 383 384 allocated = (port > 0) ? 385 res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] : 386 res_alloc->allocated[slave]; 387 guaranteed = res_alloc->guaranteed[slave]; 388 389 if (allocated - count >= guaranteed) { 390 from_rsvd = 0; 391 } else { 392 /* portion may need to be returned to reserved area */ 393 if (allocated - guaranteed > 0) 394 from_rsvd = count - (allocated - guaranteed); 395 else 396 from_rsvd = count; 397 } 398 399 if (port > 0) { 400 res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] -= count; 401 res_alloc->res_port_free[port - 1] += count; 402 res_alloc->res_port_rsvd[port - 1] += from_rsvd; 403 } else { 404 res_alloc->allocated[slave] -= count; 405 res_alloc->res_free += count; 406 res_alloc->res_reserved += from_rsvd; 407 } 408 409 spin_unlock(&res_alloc->alloc_lock); 410 return; 411 } 412 413 static inline void initialize_res_quotas(struct mlx4_dev *dev, 414 struct resource_allocator *res_alloc, 415 enum mlx4_resource res_type, 416 int vf, int num_instances) 417 { 418 res_alloc->guaranteed[vf] = num_instances / (2 * (dev->num_vfs + 1)); 419 res_alloc->quota[vf] = (num_instances / 2) + res_alloc->guaranteed[vf]; 420 if (vf == mlx4_master_func_num(dev)) { 421 res_alloc->res_free = num_instances; 422 if (res_type == RES_MTT) { 423 /* reserved mtts will be taken out of the PF allocation */ 424 res_alloc->res_free += dev->caps.reserved_mtts; 425 res_alloc->guaranteed[vf] += dev->caps.reserved_mtts; 426 res_alloc->quota[vf] += dev->caps.reserved_mtts; 427 } 428 } 429 } 430 431 void mlx4_init_quotas(struct mlx4_dev *dev) 432 { 433 struct mlx4_priv *priv = mlx4_priv(dev); 434 int pf; 435 436 /* quotas for VFs are initialized in mlx4_slave_cap */ 437 if (mlx4_is_slave(dev)) 438 return; 439 440 if (!mlx4_is_mfunc(dev)) { 441 dev->quotas.qp = dev->caps.num_qps - dev->caps.reserved_qps - 442 mlx4_num_reserved_sqps(dev); 443 dev->quotas.cq = dev->caps.num_cqs - dev->caps.reserved_cqs; 444 dev->quotas.srq = dev->caps.num_srqs - dev->caps.reserved_srqs; 445 dev->quotas.mtt = dev->caps.num_mtts - dev->caps.reserved_mtts; 446 dev->quotas.mpt = dev->caps.num_mpts - dev->caps.reserved_mrws; 447 return; 448 } 449 450 pf = mlx4_master_func_num(dev); 451 dev->quotas.qp = 452 priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[pf]; 453 dev->quotas.cq = 454 priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[pf]; 455 dev->quotas.srq = 456 priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[pf]; 457 dev->quotas.mtt = 458 priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[pf]; 459 dev->quotas.mpt = 460 priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[pf]; 461 } 462 int mlx4_init_resource_tracker(struct mlx4_dev *dev) 463 { 464 struct mlx4_priv *priv = mlx4_priv(dev); 465 int i, j; 466 int t; 467 468 priv->mfunc.master.res_tracker.slave_list = 469 kzalloc(dev->num_slaves * sizeof(struct slave_list), 470 GFP_KERNEL); 471 if (!priv->mfunc.master.res_tracker.slave_list) 472 return -ENOMEM; 473 474 for (i = 0 ; i < dev->num_slaves; i++) { 475 for (t = 0; t < MLX4_NUM_OF_RESOURCE_TYPE; ++t) 476 INIT_LIST_HEAD(&priv->mfunc.master.res_tracker. 477 slave_list[i].res_list[t]); 478 mutex_init(&priv->mfunc.master.res_tracker.slave_list[i].mutex); 479 } 480 481 mlx4_dbg(dev, "Started init_resource_tracker: %ld slaves\n", 482 dev->num_slaves); 483 for (i = 0 ; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) 484 priv->mfunc.master.res_tracker.res_tree[i] = RB_ROOT; 485 486 for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) { 487 struct resource_allocator *res_alloc = 488 &priv->mfunc.master.res_tracker.res_alloc[i]; 489 res_alloc->quota = kmalloc((dev->num_vfs + 1) * sizeof(int), GFP_KERNEL); 490 res_alloc->guaranteed = kmalloc((dev->num_vfs + 1) * sizeof(int), GFP_KERNEL); 491 if (i == RES_MAC || i == RES_VLAN) 492 res_alloc->allocated = kzalloc(MLX4_MAX_PORTS * 493 (dev->num_vfs + 1) * sizeof(int), 494 GFP_KERNEL); 495 else 496 res_alloc->allocated = kzalloc((dev->num_vfs + 1) * sizeof(int), GFP_KERNEL); 497 498 if (!res_alloc->quota || !res_alloc->guaranteed || 499 !res_alloc->allocated) 500 goto no_mem_err; 501 502 spin_lock_init(&res_alloc->alloc_lock); 503 for (t = 0; t < dev->num_vfs + 1; t++) { 504 struct mlx4_active_ports actv_ports = 505 mlx4_get_active_ports(dev, t); 506 switch (i) { 507 case RES_QP: 508 initialize_res_quotas(dev, res_alloc, RES_QP, 509 t, dev->caps.num_qps - 510 dev->caps.reserved_qps - 511 mlx4_num_reserved_sqps(dev)); 512 break; 513 case RES_CQ: 514 initialize_res_quotas(dev, res_alloc, RES_CQ, 515 t, dev->caps.num_cqs - 516 dev->caps.reserved_cqs); 517 break; 518 case RES_SRQ: 519 initialize_res_quotas(dev, res_alloc, RES_SRQ, 520 t, dev->caps.num_srqs - 521 dev->caps.reserved_srqs); 522 break; 523 case RES_MPT: 524 initialize_res_quotas(dev, res_alloc, RES_MPT, 525 t, dev->caps.num_mpts - 526 dev->caps.reserved_mrws); 527 break; 528 case RES_MTT: 529 initialize_res_quotas(dev, res_alloc, RES_MTT, 530 t, dev->caps.num_mtts - 531 dev->caps.reserved_mtts); 532 break; 533 case RES_MAC: 534 if (t == mlx4_master_func_num(dev)) { 535 int max_vfs_pport = 0; 536 /* Calculate the max vfs per port for */ 537 /* both ports. */ 538 for (j = 0; j < dev->caps.num_ports; 539 j++) { 540 struct mlx4_slaves_pport slaves_pport = 541 mlx4_phys_to_slaves_pport(dev, j + 1); 542 unsigned current_slaves = 543 bitmap_weight(slaves_pport.slaves, 544 dev->caps.num_ports) - 1; 545 if (max_vfs_pport < current_slaves) 546 max_vfs_pport = 547 current_slaves; 548 } 549 res_alloc->quota[t] = 550 MLX4_MAX_MAC_NUM - 551 2 * max_vfs_pport; 552 res_alloc->guaranteed[t] = 2; 553 for (j = 0; j < MLX4_MAX_PORTS; j++) 554 res_alloc->res_port_free[j] = 555 MLX4_MAX_MAC_NUM; 556 } else { 557 res_alloc->quota[t] = MLX4_MAX_MAC_NUM; 558 res_alloc->guaranteed[t] = 2; 559 } 560 break; 561 case RES_VLAN: 562 if (t == mlx4_master_func_num(dev)) { 563 res_alloc->quota[t] = MLX4_MAX_VLAN_NUM; 564 res_alloc->guaranteed[t] = MLX4_MAX_VLAN_NUM / 2; 565 for (j = 0; j < MLX4_MAX_PORTS; j++) 566 res_alloc->res_port_free[j] = 567 res_alloc->quota[t]; 568 } else { 569 res_alloc->quota[t] = MLX4_MAX_VLAN_NUM / 2; 570 res_alloc->guaranteed[t] = 0; 571 } 572 break; 573 case RES_COUNTER: 574 res_alloc->quota[t] = dev->caps.max_counters; 575 res_alloc->guaranteed[t] = 0; 576 if (t == mlx4_master_func_num(dev)) 577 res_alloc->res_free = res_alloc->quota[t]; 578 break; 579 default: 580 break; 581 } 582 if (i == RES_MAC || i == RES_VLAN) { 583 for (j = 0; j < dev->caps.num_ports; j++) 584 if (test_bit(j, actv_ports.ports)) 585 res_alloc->res_port_rsvd[j] += 586 res_alloc->guaranteed[t]; 587 } else { 588 res_alloc->res_reserved += res_alloc->guaranteed[t]; 589 } 590 } 591 } 592 spin_lock_init(&priv->mfunc.master.res_tracker.lock); 593 return 0; 594 595 no_mem_err: 596 for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) { 597 kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated); 598 priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL; 599 kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed); 600 priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL; 601 kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota); 602 priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL; 603 } 604 return -ENOMEM; 605 } 606 607 void mlx4_free_resource_tracker(struct mlx4_dev *dev, 608 enum mlx4_res_tracker_free_type type) 609 { 610 struct mlx4_priv *priv = mlx4_priv(dev); 611 int i; 612 613 if (priv->mfunc.master.res_tracker.slave_list) { 614 if (type != RES_TR_FREE_STRUCTS_ONLY) { 615 for (i = 0; i < dev->num_slaves; i++) { 616 if (type == RES_TR_FREE_ALL || 617 dev->caps.function != i) 618 mlx4_delete_all_resources_for_slave(dev, i); 619 } 620 /* free master's vlans */ 621 i = dev->caps.function; 622 mlx4_reset_roce_gids(dev, i); 623 mutex_lock(&priv->mfunc.master.res_tracker.slave_list[i].mutex); 624 rem_slave_vlans(dev, i); 625 mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[i].mutex); 626 } 627 628 if (type != RES_TR_FREE_SLAVES_ONLY) { 629 for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) { 630 kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated); 631 priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL; 632 kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed); 633 priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL; 634 kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota); 635 priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL; 636 } 637 kfree(priv->mfunc.master.res_tracker.slave_list); 638 priv->mfunc.master.res_tracker.slave_list = NULL; 639 } 640 } 641 } 642 643 static void update_pkey_index(struct mlx4_dev *dev, int slave, 644 struct mlx4_cmd_mailbox *inbox) 645 { 646 u8 sched = *(u8 *)(inbox->buf + 64); 647 u8 orig_index = *(u8 *)(inbox->buf + 35); 648 u8 new_index; 649 struct mlx4_priv *priv = mlx4_priv(dev); 650 int port; 651 652 port = (sched >> 6 & 1) + 1; 653 654 new_index = priv->virt2phys_pkey[slave][port - 1][orig_index]; 655 *(u8 *)(inbox->buf + 35) = new_index; 656 } 657 658 static void update_gid(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *inbox, 659 u8 slave) 660 { 661 struct mlx4_qp_context *qp_ctx = inbox->buf + 8; 662 enum mlx4_qp_optpar optpar = be32_to_cpu(*(__be32 *) inbox->buf); 663 u32 ts = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff; 664 int port; 665 666 if (MLX4_QP_ST_UD == ts) { 667 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1; 668 if (mlx4_is_eth(dev, port)) 669 qp_ctx->pri_path.mgid_index = 670 mlx4_get_base_gid_ix(dev, slave, port) | 0x80; 671 else 672 qp_ctx->pri_path.mgid_index = slave | 0x80; 673 674 } else if (MLX4_QP_ST_RC == ts || MLX4_QP_ST_XRC == ts || MLX4_QP_ST_UC == ts) { 675 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH) { 676 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1; 677 if (mlx4_is_eth(dev, port)) { 678 qp_ctx->pri_path.mgid_index += 679 mlx4_get_base_gid_ix(dev, slave, port); 680 qp_ctx->pri_path.mgid_index &= 0x7f; 681 } else { 682 qp_ctx->pri_path.mgid_index = slave & 0x7F; 683 } 684 } 685 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) { 686 port = (qp_ctx->alt_path.sched_queue >> 6 & 1) + 1; 687 if (mlx4_is_eth(dev, port)) { 688 qp_ctx->alt_path.mgid_index += 689 mlx4_get_base_gid_ix(dev, slave, port); 690 qp_ctx->alt_path.mgid_index &= 0x7f; 691 } else { 692 qp_ctx->alt_path.mgid_index = slave & 0x7F; 693 } 694 } 695 } 696 } 697 698 static int update_vport_qp_param(struct mlx4_dev *dev, 699 struct mlx4_cmd_mailbox *inbox, 700 u8 slave, u32 qpn) 701 { 702 struct mlx4_qp_context *qpc = inbox->buf + 8; 703 struct mlx4_vport_oper_state *vp_oper; 704 struct mlx4_priv *priv; 705 int port; 706 707 port = (qpc->pri_path.sched_queue & 0x40) ? 2 : 1; 708 priv = mlx4_priv(dev); 709 vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; 710 711 if (MLX4_VGT != vp_oper->state.default_vlan) { 712 /* the reserved QPs (special, proxy, tunnel) 713 * do not operate over vlans 714 */ 715 if (mlx4_is_qp_reserved(dev, qpn)) 716 return 0; 717 718 /* force strip vlan by clear vsd */ 719 qpc->param3 &= ~cpu_to_be32(MLX4_STRIP_VLAN); 720 721 if (vp_oper->state.link_state == IFLA_VF_LINK_STATE_DISABLE && 722 dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP) { 723 qpc->pri_path.vlan_control = 724 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | 725 MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED | 726 MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED | 727 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED | 728 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED | 729 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED; 730 } else if (0 != vp_oper->state.default_vlan) { 731 qpc->pri_path.vlan_control = 732 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | 733 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED | 734 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED; 735 } else { /* priority tagged */ 736 qpc->pri_path.vlan_control = 737 MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | 738 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED; 739 } 740 741 qpc->pri_path.fvl_rx |= MLX4_FVL_RX_FORCE_ETH_VLAN; 742 qpc->pri_path.vlan_index = vp_oper->vlan_idx; 743 qpc->pri_path.fl |= MLX4_FL_CV | MLX4_FL_ETH_HIDE_CQE_VLAN; 744 qpc->pri_path.feup |= MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN; 745 qpc->pri_path.sched_queue &= 0xC7; 746 qpc->pri_path.sched_queue |= (vp_oper->state.default_qos) << 3; 747 } 748 if (vp_oper->state.spoofchk) { 749 qpc->pri_path.feup |= MLX4_FSM_FORCE_ETH_SRC_MAC; 750 qpc->pri_path.grh_mylmc = (0x80 & qpc->pri_path.grh_mylmc) + vp_oper->mac_idx; 751 } 752 return 0; 753 } 754 755 static int mpt_mask(struct mlx4_dev *dev) 756 { 757 return dev->caps.num_mpts - 1; 758 } 759 760 static void *find_res(struct mlx4_dev *dev, u64 res_id, 761 enum mlx4_resource type) 762 { 763 struct mlx4_priv *priv = mlx4_priv(dev); 764 765 return res_tracker_lookup(&priv->mfunc.master.res_tracker.res_tree[type], 766 res_id); 767 } 768 769 static int get_res(struct mlx4_dev *dev, int slave, u64 res_id, 770 enum mlx4_resource type, 771 void *res) 772 { 773 struct res_common *r; 774 int err = 0; 775 776 spin_lock_irq(mlx4_tlock(dev)); 777 r = find_res(dev, res_id, type); 778 if (!r) { 779 err = -ENONET; 780 goto exit; 781 } 782 783 if (r->state == RES_ANY_BUSY) { 784 err = -EBUSY; 785 goto exit; 786 } 787 788 if (r->owner != slave) { 789 err = -EPERM; 790 goto exit; 791 } 792 793 r->from_state = r->state; 794 r->state = RES_ANY_BUSY; 795 796 if (res) 797 *((struct res_common **)res) = r; 798 799 exit: 800 spin_unlock_irq(mlx4_tlock(dev)); 801 return err; 802 } 803 804 int mlx4_get_slave_from_resource_id(struct mlx4_dev *dev, 805 enum mlx4_resource type, 806 u64 res_id, int *slave) 807 { 808 809 struct res_common *r; 810 int err = -ENOENT; 811 int id = res_id; 812 813 if (type == RES_QP) 814 id &= 0x7fffff; 815 spin_lock(mlx4_tlock(dev)); 816 817 r = find_res(dev, id, type); 818 if (r) { 819 *slave = r->owner; 820 err = 0; 821 } 822 spin_unlock(mlx4_tlock(dev)); 823 824 return err; 825 } 826 827 static void put_res(struct mlx4_dev *dev, int slave, u64 res_id, 828 enum mlx4_resource type) 829 { 830 struct res_common *r; 831 832 spin_lock_irq(mlx4_tlock(dev)); 833 r = find_res(dev, res_id, type); 834 if (r) 835 r->state = r->from_state; 836 spin_unlock_irq(mlx4_tlock(dev)); 837 } 838 839 static struct res_common *alloc_qp_tr(int id) 840 { 841 struct res_qp *ret; 842 843 ret = kzalloc(sizeof *ret, GFP_KERNEL); 844 if (!ret) 845 return NULL; 846 847 ret->com.res_id = id; 848 ret->com.state = RES_QP_RESERVED; 849 ret->local_qpn = id; 850 INIT_LIST_HEAD(&ret->mcg_list); 851 spin_lock_init(&ret->mcg_spl); 852 atomic_set(&ret->ref_count, 0); 853 854 return &ret->com; 855 } 856 857 static struct res_common *alloc_mtt_tr(int id, int order) 858 { 859 struct res_mtt *ret; 860 861 ret = kzalloc(sizeof *ret, GFP_KERNEL); 862 if (!ret) 863 return NULL; 864 865 ret->com.res_id = id; 866 ret->order = order; 867 ret->com.state = RES_MTT_ALLOCATED; 868 atomic_set(&ret->ref_count, 0); 869 870 return &ret->com; 871 } 872 873 static struct res_common *alloc_mpt_tr(int id, int key) 874 { 875 struct res_mpt *ret; 876 877 ret = kzalloc(sizeof *ret, GFP_KERNEL); 878 if (!ret) 879 return NULL; 880 881 ret->com.res_id = id; 882 ret->com.state = RES_MPT_RESERVED; 883 ret->key = key; 884 885 return &ret->com; 886 } 887 888 static struct res_common *alloc_eq_tr(int id) 889 { 890 struct res_eq *ret; 891 892 ret = kzalloc(sizeof *ret, GFP_KERNEL); 893 if (!ret) 894 return NULL; 895 896 ret->com.res_id = id; 897 ret->com.state = RES_EQ_RESERVED; 898 899 return &ret->com; 900 } 901 902 static struct res_common *alloc_cq_tr(int id) 903 { 904 struct res_cq *ret; 905 906 ret = kzalloc(sizeof *ret, GFP_KERNEL); 907 if (!ret) 908 return NULL; 909 910 ret->com.res_id = id; 911 ret->com.state = RES_CQ_ALLOCATED; 912 atomic_set(&ret->ref_count, 0); 913 914 return &ret->com; 915 } 916 917 static struct res_common *alloc_srq_tr(int id) 918 { 919 struct res_srq *ret; 920 921 ret = kzalloc(sizeof *ret, GFP_KERNEL); 922 if (!ret) 923 return NULL; 924 925 ret->com.res_id = id; 926 ret->com.state = RES_SRQ_ALLOCATED; 927 atomic_set(&ret->ref_count, 0); 928 929 return &ret->com; 930 } 931 932 static struct res_common *alloc_counter_tr(int id) 933 { 934 struct res_counter *ret; 935 936 ret = kzalloc(sizeof *ret, GFP_KERNEL); 937 if (!ret) 938 return NULL; 939 940 ret->com.res_id = id; 941 ret->com.state = RES_COUNTER_ALLOCATED; 942 943 return &ret->com; 944 } 945 946 static struct res_common *alloc_xrcdn_tr(int id) 947 { 948 struct res_xrcdn *ret; 949 950 ret = kzalloc(sizeof *ret, GFP_KERNEL); 951 if (!ret) 952 return NULL; 953 954 ret->com.res_id = id; 955 ret->com.state = RES_XRCD_ALLOCATED; 956 957 return &ret->com; 958 } 959 960 static struct res_common *alloc_fs_rule_tr(u64 id, int qpn) 961 { 962 struct res_fs_rule *ret; 963 964 ret = kzalloc(sizeof *ret, GFP_KERNEL); 965 if (!ret) 966 return NULL; 967 968 ret->com.res_id = id; 969 ret->com.state = RES_FS_RULE_ALLOCATED; 970 ret->qpn = qpn; 971 return &ret->com; 972 } 973 974 static struct res_common *alloc_tr(u64 id, enum mlx4_resource type, int slave, 975 int extra) 976 { 977 struct res_common *ret; 978 979 switch (type) { 980 case RES_QP: 981 ret = alloc_qp_tr(id); 982 break; 983 case RES_MPT: 984 ret = alloc_mpt_tr(id, extra); 985 break; 986 case RES_MTT: 987 ret = alloc_mtt_tr(id, extra); 988 break; 989 case RES_EQ: 990 ret = alloc_eq_tr(id); 991 break; 992 case RES_CQ: 993 ret = alloc_cq_tr(id); 994 break; 995 case RES_SRQ: 996 ret = alloc_srq_tr(id); 997 break; 998 case RES_MAC: 999 pr_err("implementation missing\n"); 1000 return NULL; 1001 case RES_COUNTER: 1002 ret = alloc_counter_tr(id); 1003 break; 1004 case RES_XRCD: 1005 ret = alloc_xrcdn_tr(id); 1006 break; 1007 case RES_FS_RULE: 1008 ret = alloc_fs_rule_tr(id, extra); 1009 break; 1010 default: 1011 return NULL; 1012 } 1013 if (ret) 1014 ret->owner = slave; 1015 1016 return ret; 1017 } 1018 1019 static int add_res_range(struct mlx4_dev *dev, int slave, u64 base, int count, 1020 enum mlx4_resource type, int extra) 1021 { 1022 int i; 1023 int err; 1024 struct mlx4_priv *priv = mlx4_priv(dev); 1025 struct res_common **res_arr; 1026 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1027 struct rb_root *root = &tracker->res_tree[type]; 1028 1029 res_arr = kzalloc(count * sizeof *res_arr, GFP_KERNEL); 1030 if (!res_arr) 1031 return -ENOMEM; 1032 1033 for (i = 0; i < count; ++i) { 1034 res_arr[i] = alloc_tr(base + i, type, slave, extra); 1035 if (!res_arr[i]) { 1036 for (--i; i >= 0; --i) 1037 kfree(res_arr[i]); 1038 1039 kfree(res_arr); 1040 return -ENOMEM; 1041 } 1042 } 1043 1044 spin_lock_irq(mlx4_tlock(dev)); 1045 for (i = 0; i < count; ++i) { 1046 if (find_res(dev, base + i, type)) { 1047 err = -EEXIST; 1048 goto undo; 1049 } 1050 err = res_tracker_insert(root, res_arr[i]); 1051 if (err) 1052 goto undo; 1053 list_add_tail(&res_arr[i]->list, 1054 &tracker->slave_list[slave].res_list[type]); 1055 } 1056 spin_unlock_irq(mlx4_tlock(dev)); 1057 kfree(res_arr); 1058 1059 return 0; 1060 1061 undo: 1062 for (--i; i >= base; --i) 1063 rb_erase(&res_arr[i]->node, root); 1064 1065 spin_unlock_irq(mlx4_tlock(dev)); 1066 1067 for (i = 0; i < count; ++i) 1068 kfree(res_arr[i]); 1069 1070 kfree(res_arr); 1071 1072 return err; 1073 } 1074 1075 static int remove_qp_ok(struct res_qp *res) 1076 { 1077 if (res->com.state == RES_QP_BUSY || atomic_read(&res->ref_count) || 1078 !list_empty(&res->mcg_list)) { 1079 pr_err("resource tracker: fail to remove qp, state %d, ref_count %d\n", 1080 res->com.state, atomic_read(&res->ref_count)); 1081 return -EBUSY; 1082 } else if (res->com.state != RES_QP_RESERVED) { 1083 return -EPERM; 1084 } 1085 1086 return 0; 1087 } 1088 1089 static int remove_mtt_ok(struct res_mtt *res, int order) 1090 { 1091 if (res->com.state == RES_MTT_BUSY || 1092 atomic_read(&res->ref_count)) { 1093 pr_devel("%s-%d: state %s, ref_count %d\n", 1094 __func__, __LINE__, 1095 mtt_states_str(res->com.state), 1096 atomic_read(&res->ref_count)); 1097 return -EBUSY; 1098 } else if (res->com.state != RES_MTT_ALLOCATED) 1099 return -EPERM; 1100 else if (res->order != order) 1101 return -EINVAL; 1102 1103 return 0; 1104 } 1105 1106 static int remove_mpt_ok(struct res_mpt *res) 1107 { 1108 if (res->com.state == RES_MPT_BUSY) 1109 return -EBUSY; 1110 else if (res->com.state != RES_MPT_RESERVED) 1111 return -EPERM; 1112 1113 return 0; 1114 } 1115 1116 static int remove_eq_ok(struct res_eq *res) 1117 { 1118 if (res->com.state == RES_MPT_BUSY) 1119 return -EBUSY; 1120 else if (res->com.state != RES_MPT_RESERVED) 1121 return -EPERM; 1122 1123 return 0; 1124 } 1125 1126 static int remove_counter_ok(struct res_counter *res) 1127 { 1128 if (res->com.state == RES_COUNTER_BUSY) 1129 return -EBUSY; 1130 else if (res->com.state != RES_COUNTER_ALLOCATED) 1131 return -EPERM; 1132 1133 return 0; 1134 } 1135 1136 static int remove_xrcdn_ok(struct res_xrcdn *res) 1137 { 1138 if (res->com.state == RES_XRCD_BUSY) 1139 return -EBUSY; 1140 else if (res->com.state != RES_XRCD_ALLOCATED) 1141 return -EPERM; 1142 1143 return 0; 1144 } 1145 1146 static int remove_fs_rule_ok(struct res_fs_rule *res) 1147 { 1148 if (res->com.state == RES_FS_RULE_BUSY) 1149 return -EBUSY; 1150 else if (res->com.state != RES_FS_RULE_ALLOCATED) 1151 return -EPERM; 1152 1153 return 0; 1154 } 1155 1156 static int remove_cq_ok(struct res_cq *res) 1157 { 1158 if (res->com.state == RES_CQ_BUSY) 1159 return -EBUSY; 1160 else if (res->com.state != RES_CQ_ALLOCATED) 1161 return -EPERM; 1162 1163 return 0; 1164 } 1165 1166 static int remove_srq_ok(struct res_srq *res) 1167 { 1168 if (res->com.state == RES_SRQ_BUSY) 1169 return -EBUSY; 1170 else if (res->com.state != RES_SRQ_ALLOCATED) 1171 return -EPERM; 1172 1173 return 0; 1174 } 1175 1176 static int remove_ok(struct res_common *res, enum mlx4_resource type, int extra) 1177 { 1178 switch (type) { 1179 case RES_QP: 1180 return remove_qp_ok((struct res_qp *)res); 1181 case RES_CQ: 1182 return remove_cq_ok((struct res_cq *)res); 1183 case RES_SRQ: 1184 return remove_srq_ok((struct res_srq *)res); 1185 case RES_MPT: 1186 return remove_mpt_ok((struct res_mpt *)res); 1187 case RES_MTT: 1188 return remove_mtt_ok((struct res_mtt *)res, extra); 1189 case RES_MAC: 1190 return -ENOSYS; 1191 case RES_EQ: 1192 return remove_eq_ok((struct res_eq *)res); 1193 case RES_COUNTER: 1194 return remove_counter_ok((struct res_counter *)res); 1195 case RES_XRCD: 1196 return remove_xrcdn_ok((struct res_xrcdn *)res); 1197 case RES_FS_RULE: 1198 return remove_fs_rule_ok((struct res_fs_rule *)res); 1199 default: 1200 return -EINVAL; 1201 } 1202 } 1203 1204 static int rem_res_range(struct mlx4_dev *dev, int slave, u64 base, int count, 1205 enum mlx4_resource type, int extra) 1206 { 1207 u64 i; 1208 int err; 1209 struct mlx4_priv *priv = mlx4_priv(dev); 1210 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1211 struct res_common *r; 1212 1213 spin_lock_irq(mlx4_tlock(dev)); 1214 for (i = base; i < base + count; ++i) { 1215 r = res_tracker_lookup(&tracker->res_tree[type], i); 1216 if (!r) { 1217 err = -ENOENT; 1218 goto out; 1219 } 1220 if (r->owner != slave) { 1221 err = -EPERM; 1222 goto out; 1223 } 1224 err = remove_ok(r, type, extra); 1225 if (err) 1226 goto out; 1227 } 1228 1229 for (i = base; i < base + count; ++i) { 1230 r = res_tracker_lookup(&tracker->res_tree[type], i); 1231 rb_erase(&r->node, &tracker->res_tree[type]); 1232 list_del(&r->list); 1233 kfree(r); 1234 } 1235 err = 0; 1236 1237 out: 1238 spin_unlock_irq(mlx4_tlock(dev)); 1239 1240 return err; 1241 } 1242 1243 static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn, 1244 enum res_qp_states state, struct res_qp **qp, 1245 int alloc) 1246 { 1247 struct mlx4_priv *priv = mlx4_priv(dev); 1248 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1249 struct res_qp *r; 1250 int err = 0; 1251 1252 spin_lock_irq(mlx4_tlock(dev)); 1253 r = res_tracker_lookup(&tracker->res_tree[RES_QP], qpn); 1254 if (!r) 1255 err = -ENOENT; 1256 else if (r->com.owner != slave) 1257 err = -EPERM; 1258 else { 1259 switch (state) { 1260 case RES_QP_BUSY: 1261 mlx4_dbg(dev, "%s: failed RES_QP, 0x%llx\n", 1262 __func__, r->com.res_id); 1263 err = -EBUSY; 1264 break; 1265 1266 case RES_QP_RESERVED: 1267 if (r->com.state == RES_QP_MAPPED && !alloc) 1268 break; 1269 1270 mlx4_dbg(dev, "failed RES_QP, 0x%llx\n", r->com.res_id); 1271 err = -EINVAL; 1272 break; 1273 1274 case RES_QP_MAPPED: 1275 if ((r->com.state == RES_QP_RESERVED && alloc) || 1276 r->com.state == RES_QP_HW) 1277 break; 1278 else { 1279 mlx4_dbg(dev, "failed RES_QP, 0x%llx\n", 1280 r->com.res_id); 1281 err = -EINVAL; 1282 } 1283 1284 break; 1285 1286 case RES_QP_HW: 1287 if (r->com.state != RES_QP_MAPPED) 1288 err = -EINVAL; 1289 break; 1290 default: 1291 err = -EINVAL; 1292 } 1293 1294 if (!err) { 1295 r->com.from_state = r->com.state; 1296 r->com.to_state = state; 1297 r->com.state = RES_QP_BUSY; 1298 if (qp) 1299 *qp = r; 1300 } 1301 } 1302 1303 spin_unlock_irq(mlx4_tlock(dev)); 1304 1305 return err; 1306 } 1307 1308 static int mr_res_start_move_to(struct mlx4_dev *dev, int slave, int index, 1309 enum res_mpt_states state, struct res_mpt **mpt) 1310 { 1311 struct mlx4_priv *priv = mlx4_priv(dev); 1312 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1313 struct res_mpt *r; 1314 int err = 0; 1315 1316 spin_lock_irq(mlx4_tlock(dev)); 1317 r = res_tracker_lookup(&tracker->res_tree[RES_MPT], index); 1318 if (!r) 1319 err = -ENOENT; 1320 else if (r->com.owner != slave) 1321 err = -EPERM; 1322 else { 1323 switch (state) { 1324 case RES_MPT_BUSY: 1325 err = -EINVAL; 1326 break; 1327 1328 case RES_MPT_RESERVED: 1329 if (r->com.state != RES_MPT_MAPPED) 1330 err = -EINVAL; 1331 break; 1332 1333 case RES_MPT_MAPPED: 1334 if (r->com.state != RES_MPT_RESERVED && 1335 r->com.state != RES_MPT_HW) 1336 err = -EINVAL; 1337 break; 1338 1339 case RES_MPT_HW: 1340 if (r->com.state != RES_MPT_MAPPED) 1341 err = -EINVAL; 1342 break; 1343 default: 1344 err = -EINVAL; 1345 } 1346 1347 if (!err) { 1348 r->com.from_state = r->com.state; 1349 r->com.to_state = state; 1350 r->com.state = RES_MPT_BUSY; 1351 if (mpt) 1352 *mpt = r; 1353 } 1354 } 1355 1356 spin_unlock_irq(mlx4_tlock(dev)); 1357 1358 return err; 1359 } 1360 1361 static int eq_res_start_move_to(struct mlx4_dev *dev, int slave, int index, 1362 enum res_eq_states state, struct res_eq **eq) 1363 { 1364 struct mlx4_priv *priv = mlx4_priv(dev); 1365 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1366 struct res_eq *r; 1367 int err = 0; 1368 1369 spin_lock_irq(mlx4_tlock(dev)); 1370 r = res_tracker_lookup(&tracker->res_tree[RES_EQ], index); 1371 if (!r) 1372 err = -ENOENT; 1373 else if (r->com.owner != slave) 1374 err = -EPERM; 1375 else { 1376 switch (state) { 1377 case RES_EQ_BUSY: 1378 err = -EINVAL; 1379 break; 1380 1381 case RES_EQ_RESERVED: 1382 if (r->com.state != RES_EQ_HW) 1383 err = -EINVAL; 1384 break; 1385 1386 case RES_EQ_HW: 1387 if (r->com.state != RES_EQ_RESERVED) 1388 err = -EINVAL; 1389 break; 1390 1391 default: 1392 err = -EINVAL; 1393 } 1394 1395 if (!err) { 1396 r->com.from_state = r->com.state; 1397 r->com.to_state = state; 1398 r->com.state = RES_EQ_BUSY; 1399 if (eq) 1400 *eq = r; 1401 } 1402 } 1403 1404 spin_unlock_irq(mlx4_tlock(dev)); 1405 1406 return err; 1407 } 1408 1409 static int cq_res_start_move_to(struct mlx4_dev *dev, int slave, int cqn, 1410 enum res_cq_states state, struct res_cq **cq) 1411 { 1412 struct mlx4_priv *priv = mlx4_priv(dev); 1413 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1414 struct res_cq *r; 1415 int err; 1416 1417 spin_lock_irq(mlx4_tlock(dev)); 1418 r = res_tracker_lookup(&tracker->res_tree[RES_CQ], cqn); 1419 if (!r) { 1420 err = -ENOENT; 1421 } else if (r->com.owner != slave) { 1422 err = -EPERM; 1423 } else if (state == RES_CQ_ALLOCATED) { 1424 if (r->com.state != RES_CQ_HW) 1425 err = -EINVAL; 1426 else if (atomic_read(&r->ref_count)) 1427 err = -EBUSY; 1428 else 1429 err = 0; 1430 } else if (state != RES_CQ_HW || r->com.state != RES_CQ_ALLOCATED) { 1431 err = -EINVAL; 1432 } else { 1433 err = 0; 1434 } 1435 1436 if (!err) { 1437 r->com.from_state = r->com.state; 1438 r->com.to_state = state; 1439 r->com.state = RES_CQ_BUSY; 1440 if (cq) 1441 *cq = r; 1442 } 1443 1444 spin_unlock_irq(mlx4_tlock(dev)); 1445 1446 return err; 1447 } 1448 1449 static int srq_res_start_move_to(struct mlx4_dev *dev, int slave, int index, 1450 enum res_srq_states state, struct res_srq **srq) 1451 { 1452 struct mlx4_priv *priv = mlx4_priv(dev); 1453 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1454 struct res_srq *r; 1455 int err = 0; 1456 1457 spin_lock_irq(mlx4_tlock(dev)); 1458 r = res_tracker_lookup(&tracker->res_tree[RES_SRQ], index); 1459 if (!r) { 1460 err = -ENOENT; 1461 } else if (r->com.owner != slave) { 1462 err = -EPERM; 1463 } else if (state == RES_SRQ_ALLOCATED) { 1464 if (r->com.state != RES_SRQ_HW) 1465 err = -EINVAL; 1466 else if (atomic_read(&r->ref_count)) 1467 err = -EBUSY; 1468 } else if (state != RES_SRQ_HW || r->com.state != RES_SRQ_ALLOCATED) { 1469 err = -EINVAL; 1470 } 1471 1472 if (!err) { 1473 r->com.from_state = r->com.state; 1474 r->com.to_state = state; 1475 r->com.state = RES_SRQ_BUSY; 1476 if (srq) 1477 *srq = r; 1478 } 1479 1480 spin_unlock_irq(mlx4_tlock(dev)); 1481 1482 return err; 1483 } 1484 1485 static void res_abort_move(struct mlx4_dev *dev, int slave, 1486 enum mlx4_resource type, int id) 1487 { 1488 struct mlx4_priv *priv = mlx4_priv(dev); 1489 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1490 struct res_common *r; 1491 1492 spin_lock_irq(mlx4_tlock(dev)); 1493 r = res_tracker_lookup(&tracker->res_tree[type], id); 1494 if (r && (r->owner == slave)) 1495 r->state = r->from_state; 1496 spin_unlock_irq(mlx4_tlock(dev)); 1497 } 1498 1499 static void res_end_move(struct mlx4_dev *dev, int slave, 1500 enum mlx4_resource type, int id) 1501 { 1502 struct mlx4_priv *priv = mlx4_priv(dev); 1503 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1504 struct res_common *r; 1505 1506 spin_lock_irq(mlx4_tlock(dev)); 1507 r = res_tracker_lookup(&tracker->res_tree[type], id); 1508 if (r && (r->owner == slave)) 1509 r->state = r->to_state; 1510 spin_unlock_irq(mlx4_tlock(dev)); 1511 } 1512 1513 static int valid_reserved(struct mlx4_dev *dev, int slave, int qpn) 1514 { 1515 return mlx4_is_qp_reserved(dev, qpn) && 1516 (mlx4_is_master(dev) || mlx4_is_guest_proxy(dev, slave, qpn)); 1517 } 1518 1519 static int fw_reserved(struct mlx4_dev *dev, int qpn) 1520 { 1521 return qpn < dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW]; 1522 } 1523 1524 static int qp_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 1525 u64 in_param, u64 *out_param) 1526 { 1527 int err; 1528 int count; 1529 int align; 1530 int base; 1531 int qpn; 1532 1533 switch (op) { 1534 case RES_OP_RESERVE: 1535 count = get_param_l(&in_param); 1536 align = get_param_h(&in_param); 1537 err = mlx4_grant_resource(dev, slave, RES_QP, count, 0); 1538 if (err) 1539 return err; 1540 1541 err = __mlx4_qp_reserve_range(dev, count, align, &base); 1542 if (err) { 1543 mlx4_release_resource(dev, slave, RES_QP, count, 0); 1544 return err; 1545 } 1546 1547 err = add_res_range(dev, slave, base, count, RES_QP, 0); 1548 if (err) { 1549 mlx4_release_resource(dev, slave, RES_QP, count, 0); 1550 __mlx4_qp_release_range(dev, base, count); 1551 return err; 1552 } 1553 set_param_l(out_param, base); 1554 break; 1555 case RES_OP_MAP_ICM: 1556 qpn = get_param_l(&in_param) & 0x7fffff; 1557 if (valid_reserved(dev, slave, qpn)) { 1558 err = add_res_range(dev, slave, qpn, 1, RES_QP, 0); 1559 if (err) 1560 return err; 1561 } 1562 1563 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, 1564 NULL, 1); 1565 if (err) 1566 return err; 1567 1568 if (!fw_reserved(dev, qpn)) { 1569 err = __mlx4_qp_alloc_icm(dev, qpn, GFP_KERNEL); 1570 if (err) { 1571 res_abort_move(dev, slave, RES_QP, qpn); 1572 return err; 1573 } 1574 } 1575 1576 res_end_move(dev, slave, RES_QP, qpn); 1577 break; 1578 1579 default: 1580 err = -EINVAL; 1581 break; 1582 } 1583 return err; 1584 } 1585 1586 static int mtt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 1587 u64 in_param, u64 *out_param) 1588 { 1589 int err = -EINVAL; 1590 int base; 1591 int order; 1592 1593 if (op != RES_OP_RESERVE_AND_MAP) 1594 return err; 1595 1596 order = get_param_l(&in_param); 1597 1598 err = mlx4_grant_resource(dev, slave, RES_MTT, 1 << order, 0); 1599 if (err) 1600 return err; 1601 1602 base = __mlx4_alloc_mtt_range(dev, order); 1603 if (base == -1) { 1604 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0); 1605 return -ENOMEM; 1606 } 1607 1608 err = add_res_range(dev, slave, base, 1, RES_MTT, order); 1609 if (err) { 1610 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0); 1611 __mlx4_free_mtt_range(dev, base, order); 1612 } else { 1613 set_param_l(out_param, base); 1614 } 1615 1616 return err; 1617 } 1618 1619 static int mpt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 1620 u64 in_param, u64 *out_param) 1621 { 1622 int err = -EINVAL; 1623 int index; 1624 int id; 1625 struct res_mpt *mpt; 1626 1627 switch (op) { 1628 case RES_OP_RESERVE: 1629 err = mlx4_grant_resource(dev, slave, RES_MPT, 1, 0); 1630 if (err) 1631 break; 1632 1633 index = __mlx4_mpt_reserve(dev); 1634 if (index == -1) { 1635 mlx4_release_resource(dev, slave, RES_MPT, 1, 0); 1636 break; 1637 } 1638 id = index & mpt_mask(dev); 1639 1640 err = add_res_range(dev, slave, id, 1, RES_MPT, index); 1641 if (err) { 1642 mlx4_release_resource(dev, slave, RES_MPT, 1, 0); 1643 __mlx4_mpt_release(dev, index); 1644 break; 1645 } 1646 set_param_l(out_param, index); 1647 break; 1648 case RES_OP_MAP_ICM: 1649 index = get_param_l(&in_param); 1650 id = index & mpt_mask(dev); 1651 err = mr_res_start_move_to(dev, slave, id, 1652 RES_MPT_MAPPED, &mpt); 1653 if (err) 1654 return err; 1655 1656 err = __mlx4_mpt_alloc_icm(dev, mpt->key, GFP_KERNEL); 1657 if (err) { 1658 res_abort_move(dev, slave, RES_MPT, id); 1659 return err; 1660 } 1661 1662 res_end_move(dev, slave, RES_MPT, id); 1663 break; 1664 } 1665 return err; 1666 } 1667 1668 static int cq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 1669 u64 in_param, u64 *out_param) 1670 { 1671 int cqn; 1672 int err; 1673 1674 switch (op) { 1675 case RES_OP_RESERVE_AND_MAP: 1676 err = mlx4_grant_resource(dev, slave, RES_CQ, 1, 0); 1677 if (err) 1678 break; 1679 1680 err = __mlx4_cq_alloc_icm(dev, &cqn); 1681 if (err) { 1682 mlx4_release_resource(dev, slave, RES_CQ, 1, 0); 1683 break; 1684 } 1685 1686 err = add_res_range(dev, slave, cqn, 1, RES_CQ, 0); 1687 if (err) { 1688 mlx4_release_resource(dev, slave, RES_CQ, 1, 0); 1689 __mlx4_cq_free_icm(dev, cqn); 1690 break; 1691 } 1692 1693 set_param_l(out_param, cqn); 1694 break; 1695 1696 default: 1697 err = -EINVAL; 1698 } 1699 1700 return err; 1701 } 1702 1703 static int srq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 1704 u64 in_param, u64 *out_param) 1705 { 1706 int srqn; 1707 int err; 1708 1709 switch (op) { 1710 case RES_OP_RESERVE_AND_MAP: 1711 err = mlx4_grant_resource(dev, slave, RES_SRQ, 1, 0); 1712 if (err) 1713 break; 1714 1715 err = __mlx4_srq_alloc_icm(dev, &srqn); 1716 if (err) { 1717 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0); 1718 break; 1719 } 1720 1721 err = add_res_range(dev, slave, srqn, 1, RES_SRQ, 0); 1722 if (err) { 1723 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0); 1724 __mlx4_srq_free_icm(dev, srqn); 1725 break; 1726 } 1727 1728 set_param_l(out_param, srqn); 1729 break; 1730 1731 default: 1732 err = -EINVAL; 1733 } 1734 1735 return err; 1736 } 1737 1738 static int mac_find_smac_ix_in_slave(struct mlx4_dev *dev, int slave, int port, 1739 u8 smac_index, u64 *mac) 1740 { 1741 struct mlx4_priv *priv = mlx4_priv(dev); 1742 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1743 struct list_head *mac_list = 1744 &tracker->slave_list[slave].res_list[RES_MAC]; 1745 struct mac_res *res, *tmp; 1746 1747 list_for_each_entry_safe(res, tmp, mac_list, list) { 1748 if (res->smac_index == smac_index && res->port == (u8) port) { 1749 *mac = res->mac; 1750 return 0; 1751 } 1752 } 1753 return -ENOENT; 1754 } 1755 1756 static int mac_add_to_slave(struct mlx4_dev *dev, int slave, u64 mac, int port, u8 smac_index) 1757 { 1758 struct mlx4_priv *priv = mlx4_priv(dev); 1759 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1760 struct list_head *mac_list = 1761 &tracker->slave_list[slave].res_list[RES_MAC]; 1762 struct mac_res *res, *tmp; 1763 1764 list_for_each_entry_safe(res, tmp, mac_list, list) { 1765 if (res->mac == mac && res->port == (u8) port) { 1766 /* mac found. update ref count */ 1767 ++res->ref_count; 1768 return 0; 1769 } 1770 } 1771 1772 if (mlx4_grant_resource(dev, slave, RES_MAC, 1, port)) 1773 return -EINVAL; 1774 res = kzalloc(sizeof *res, GFP_KERNEL); 1775 if (!res) { 1776 mlx4_release_resource(dev, slave, RES_MAC, 1, port); 1777 return -ENOMEM; 1778 } 1779 res->mac = mac; 1780 res->port = (u8) port; 1781 res->smac_index = smac_index; 1782 res->ref_count = 1; 1783 list_add_tail(&res->list, 1784 &tracker->slave_list[slave].res_list[RES_MAC]); 1785 return 0; 1786 } 1787 1788 static void mac_del_from_slave(struct mlx4_dev *dev, int slave, u64 mac, 1789 int port) 1790 { 1791 struct mlx4_priv *priv = mlx4_priv(dev); 1792 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1793 struct list_head *mac_list = 1794 &tracker->slave_list[slave].res_list[RES_MAC]; 1795 struct mac_res *res, *tmp; 1796 1797 list_for_each_entry_safe(res, tmp, mac_list, list) { 1798 if (res->mac == mac && res->port == (u8) port) { 1799 if (!--res->ref_count) { 1800 list_del(&res->list); 1801 mlx4_release_resource(dev, slave, RES_MAC, 1, port); 1802 kfree(res); 1803 } 1804 break; 1805 } 1806 } 1807 } 1808 1809 static void rem_slave_macs(struct mlx4_dev *dev, int slave) 1810 { 1811 struct mlx4_priv *priv = mlx4_priv(dev); 1812 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1813 struct list_head *mac_list = 1814 &tracker->slave_list[slave].res_list[RES_MAC]; 1815 struct mac_res *res, *tmp; 1816 int i; 1817 1818 list_for_each_entry_safe(res, tmp, mac_list, list) { 1819 list_del(&res->list); 1820 /* dereference the mac the num times the slave referenced it */ 1821 for (i = 0; i < res->ref_count; i++) 1822 __mlx4_unregister_mac(dev, res->port, res->mac); 1823 mlx4_release_resource(dev, slave, RES_MAC, 1, res->port); 1824 kfree(res); 1825 } 1826 } 1827 1828 static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 1829 u64 in_param, u64 *out_param, int in_port) 1830 { 1831 int err = -EINVAL; 1832 int port; 1833 u64 mac; 1834 u8 smac_index; 1835 1836 if (op != RES_OP_RESERVE_AND_MAP) 1837 return err; 1838 1839 port = !in_port ? get_param_l(out_param) : in_port; 1840 port = mlx4_slave_convert_port( 1841 dev, slave, port); 1842 1843 if (port < 0) 1844 return -EINVAL; 1845 mac = in_param; 1846 1847 err = __mlx4_register_mac(dev, port, mac); 1848 if (err >= 0) { 1849 smac_index = err; 1850 set_param_l(out_param, err); 1851 err = 0; 1852 } 1853 1854 if (!err) { 1855 err = mac_add_to_slave(dev, slave, mac, port, smac_index); 1856 if (err) 1857 __mlx4_unregister_mac(dev, port, mac); 1858 } 1859 return err; 1860 } 1861 1862 static int vlan_add_to_slave(struct mlx4_dev *dev, int slave, u16 vlan, 1863 int port, int vlan_index) 1864 { 1865 struct mlx4_priv *priv = mlx4_priv(dev); 1866 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1867 struct list_head *vlan_list = 1868 &tracker->slave_list[slave].res_list[RES_VLAN]; 1869 struct vlan_res *res, *tmp; 1870 1871 list_for_each_entry_safe(res, tmp, vlan_list, list) { 1872 if (res->vlan == vlan && res->port == (u8) port) { 1873 /* vlan found. update ref count */ 1874 ++res->ref_count; 1875 return 0; 1876 } 1877 } 1878 1879 if (mlx4_grant_resource(dev, slave, RES_VLAN, 1, port)) 1880 return -EINVAL; 1881 res = kzalloc(sizeof(*res), GFP_KERNEL); 1882 if (!res) { 1883 mlx4_release_resource(dev, slave, RES_VLAN, 1, port); 1884 return -ENOMEM; 1885 } 1886 res->vlan = vlan; 1887 res->port = (u8) port; 1888 res->vlan_index = vlan_index; 1889 res->ref_count = 1; 1890 list_add_tail(&res->list, 1891 &tracker->slave_list[slave].res_list[RES_VLAN]); 1892 return 0; 1893 } 1894 1895 1896 static void vlan_del_from_slave(struct mlx4_dev *dev, int slave, u16 vlan, 1897 int port) 1898 { 1899 struct mlx4_priv *priv = mlx4_priv(dev); 1900 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1901 struct list_head *vlan_list = 1902 &tracker->slave_list[slave].res_list[RES_VLAN]; 1903 struct vlan_res *res, *tmp; 1904 1905 list_for_each_entry_safe(res, tmp, vlan_list, list) { 1906 if (res->vlan == vlan && res->port == (u8) port) { 1907 if (!--res->ref_count) { 1908 list_del(&res->list); 1909 mlx4_release_resource(dev, slave, RES_VLAN, 1910 1, port); 1911 kfree(res); 1912 } 1913 break; 1914 } 1915 } 1916 } 1917 1918 static void rem_slave_vlans(struct mlx4_dev *dev, int slave) 1919 { 1920 struct mlx4_priv *priv = mlx4_priv(dev); 1921 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 1922 struct list_head *vlan_list = 1923 &tracker->slave_list[slave].res_list[RES_VLAN]; 1924 struct vlan_res *res, *tmp; 1925 int i; 1926 1927 list_for_each_entry_safe(res, tmp, vlan_list, list) { 1928 list_del(&res->list); 1929 /* dereference the vlan the num times the slave referenced it */ 1930 for (i = 0; i < res->ref_count; i++) 1931 __mlx4_unregister_vlan(dev, res->port, res->vlan); 1932 mlx4_release_resource(dev, slave, RES_VLAN, 1, res->port); 1933 kfree(res); 1934 } 1935 } 1936 1937 static int vlan_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 1938 u64 in_param, u64 *out_param, int in_port) 1939 { 1940 struct mlx4_priv *priv = mlx4_priv(dev); 1941 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state; 1942 int err; 1943 u16 vlan; 1944 int vlan_index; 1945 int port; 1946 1947 port = !in_port ? get_param_l(out_param) : in_port; 1948 1949 if (!port || op != RES_OP_RESERVE_AND_MAP) 1950 return -EINVAL; 1951 1952 port = mlx4_slave_convert_port( 1953 dev, slave, port); 1954 1955 if (port < 0) 1956 return -EINVAL; 1957 /* upstream kernels had NOP for reg/unreg vlan. Continue this. */ 1958 if (!in_port && port > 0 && port <= dev->caps.num_ports) { 1959 slave_state[slave].old_vlan_api = true; 1960 return 0; 1961 } 1962 1963 vlan = (u16) in_param; 1964 1965 err = __mlx4_register_vlan(dev, port, vlan, &vlan_index); 1966 if (!err) { 1967 set_param_l(out_param, (u32) vlan_index); 1968 err = vlan_add_to_slave(dev, slave, vlan, port, vlan_index); 1969 if (err) 1970 __mlx4_unregister_vlan(dev, port, vlan); 1971 } 1972 return err; 1973 } 1974 1975 static int counter_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 1976 u64 in_param, u64 *out_param) 1977 { 1978 u32 index; 1979 int err; 1980 1981 if (op != RES_OP_RESERVE) 1982 return -EINVAL; 1983 1984 err = mlx4_grant_resource(dev, slave, RES_COUNTER, 1, 0); 1985 if (err) 1986 return err; 1987 1988 err = __mlx4_counter_alloc(dev, &index); 1989 if (err) { 1990 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0); 1991 return err; 1992 } 1993 1994 err = add_res_range(dev, slave, index, 1, RES_COUNTER, 0); 1995 if (err) { 1996 __mlx4_counter_free(dev, index); 1997 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0); 1998 } else { 1999 set_param_l(out_param, index); 2000 } 2001 2002 return err; 2003 } 2004 2005 static int xrcdn_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2006 u64 in_param, u64 *out_param) 2007 { 2008 u32 xrcdn; 2009 int err; 2010 2011 if (op != RES_OP_RESERVE) 2012 return -EINVAL; 2013 2014 err = __mlx4_xrcd_alloc(dev, &xrcdn); 2015 if (err) 2016 return err; 2017 2018 err = add_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0); 2019 if (err) 2020 __mlx4_xrcd_free(dev, xrcdn); 2021 else 2022 set_param_l(out_param, xrcdn); 2023 2024 return err; 2025 } 2026 2027 int mlx4_ALLOC_RES_wrapper(struct mlx4_dev *dev, int slave, 2028 struct mlx4_vhcr *vhcr, 2029 struct mlx4_cmd_mailbox *inbox, 2030 struct mlx4_cmd_mailbox *outbox, 2031 struct mlx4_cmd_info *cmd) 2032 { 2033 int err; 2034 int alop = vhcr->op_modifier; 2035 2036 switch (vhcr->in_modifier & 0xFF) { 2037 case RES_QP: 2038 err = qp_alloc_res(dev, slave, vhcr->op_modifier, alop, 2039 vhcr->in_param, &vhcr->out_param); 2040 break; 2041 2042 case RES_MTT: 2043 err = mtt_alloc_res(dev, slave, vhcr->op_modifier, alop, 2044 vhcr->in_param, &vhcr->out_param); 2045 break; 2046 2047 case RES_MPT: 2048 err = mpt_alloc_res(dev, slave, vhcr->op_modifier, alop, 2049 vhcr->in_param, &vhcr->out_param); 2050 break; 2051 2052 case RES_CQ: 2053 err = cq_alloc_res(dev, slave, vhcr->op_modifier, alop, 2054 vhcr->in_param, &vhcr->out_param); 2055 break; 2056 2057 case RES_SRQ: 2058 err = srq_alloc_res(dev, slave, vhcr->op_modifier, alop, 2059 vhcr->in_param, &vhcr->out_param); 2060 break; 2061 2062 case RES_MAC: 2063 err = mac_alloc_res(dev, slave, vhcr->op_modifier, alop, 2064 vhcr->in_param, &vhcr->out_param, 2065 (vhcr->in_modifier >> 8) & 0xFF); 2066 break; 2067 2068 case RES_VLAN: 2069 err = vlan_alloc_res(dev, slave, vhcr->op_modifier, alop, 2070 vhcr->in_param, &vhcr->out_param, 2071 (vhcr->in_modifier >> 8) & 0xFF); 2072 break; 2073 2074 case RES_COUNTER: 2075 err = counter_alloc_res(dev, slave, vhcr->op_modifier, alop, 2076 vhcr->in_param, &vhcr->out_param); 2077 break; 2078 2079 case RES_XRCD: 2080 err = xrcdn_alloc_res(dev, slave, vhcr->op_modifier, alop, 2081 vhcr->in_param, &vhcr->out_param); 2082 break; 2083 2084 default: 2085 err = -EINVAL; 2086 break; 2087 } 2088 2089 return err; 2090 } 2091 2092 static int qp_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2093 u64 in_param) 2094 { 2095 int err; 2096 int count; 2097 int base; 2098 int qpn; 2099 2100 switch (op) { 2101 case RES_OP_RESERVE: 2102 base = get_param_l(&in_param) & 0x7fffff; 2103 count = get_param_h(&in_param); 2104 err = rem_res_range(dev, slave, base, count, RES_QP, 0); 2105 if (err) 2106 break; 2107 mlx4_release_resource(dev, slave, RES_QP, count, 0); 2108 __mlx4_qp_release_range(dev, base, count); 2109 break; 2110 case RES_OP_MAP_ICM: 2111 qpn = get_param_l(&in_param) & 0x7fffff; 2112 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_RESERVED, 2113 NULL, 0); 2114 if (err) 2115 return err; 2116 2117 if (!fw_reserved(dev, qpn)) 2118 __mlx4_qp_free_icm(dev, qpn); 2119 2120 res_end_move(dev, slave, RES_QP, qpn); 2121 2122 if (valid_reserved(dev, slave, qpn)) 2123 err = rem_res_range(dev, slave, qpn, 1, RES_QP, 0); 2124 break; 2125 default: 2126 err = -EINVAL; 2127 break; 2128 } 2129 return err; 2130 } 2131 2132 static int mtt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2133 u64 in_param, u64 *out_param) 2134 { 2135 int err = -EINVAL; 2136 int base; 2137 int order; 2138 2139 if (op != RES_OP_RESERVE_AND_MAP) 2140 return err; 2141 2142 base = get_param_l(&in_param); 2143 order = get_param_h(&in_param); 2144 err = rem_res_range(dev, slave, base, 1, RES_MTT, order); 2145 if (!err) { 2146 mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0); 2147 __mlx4_free_mtt_range(dev, base, order); 2148 } 2149 return err; 2150 } 2151 2152 static int mpt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2153 u64 in_param) 2154 { 2155 int err = -EINVAL; 2156 int index; 2157 int id; 2158 struct res_mpt *mpt; 2159 2160 switch (op) { 2161 case RES_OP_RESERVE: 2162 index = get_param_l(&in_param); 2163 id = index & mpt_mask(dev); 2164 err = get_res(dev, slave, id, RES_MPT, &mpt); 2165 if (err) 2166 break; 2167 index = mpt->key; 2168 put_res(dev, slave, id, RES_MPT); 2169 2170 err = rem_res_range(dev, slave, id, 1, RES_MPT, 0); 2171 if (err) 2172 break; 2173 mlx4_release_resource(dev, slave, RES_MPT, 1, 0); 2174 __mlx4_mpt_release(dev, index); 2175 break; 2176 case RES_OP_MAP_ICM: 2177 index = get_param_l(&in_param); 2178 id = index & mpt_mask(dev); 2179 err = mr_res_start_move_to(dev, slave, id, 2180 RES_MPT_RESERVED, &mpt); 2181 if (err) 2182 return err; 2183 2184 __mlx4_mpt_free_icm(dev, mpt->key); 2185 res_end_move(dev, slave, RES_MPT, id); 2186 return err; 2187 break; 2188 default: 2189 err = -EINVAL; 2190 break; 2191 } 2192 return err; 2193 } 2194 2195 static int cq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2196 u64 in_param, u64 *out_param) 2197 { 2198 int cqn; 2199 int err; 2200 2201 switch (op) { 2202 case RES_OP_RESERVE_AND_MAP: 2203 cqn = get_param_l(&in_param); 2204 err = rem_res_range(dev, slave, cqn, 1, RES_CQ, 0); 2205 if (err) 2206 break; 2207 2208 mlx4_release_resource(dev, slave, RES_CQ, 1, 0); 2209 __mlx4_cq_free_icm(dev, cqn); 2210 break; 2211 2212 default: 2213 err = -EINVAL; 2214 break; 2215 } 2216 2217 return err; 2218 } 2219 2220 static int srq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2221 u64 in_param, u64 *out_param) 2222 { 2223 int srqn; 2224 int err; 2225 2226 switch (op) { 2227 case RES_OP_RESERVE_AND_MAP: 2228 srqn = get_param_l(&in_param); 2229 err = rem_res_range(dev, slave, srqn, 1, RES_SRQ, 0); 2230 if (err) 2231 break; 2232 2233 mlx4_release_resource(dev, slave, RES_SRQ, 1, 0); 2234 __mlx4_srq_free_icm(dev, srqn); 2235 break; 2236 2237 default: 2238 err = -EINVAL; 2239 break; 2240 } 2241 2242 return err; 2243 } 2244 2245 static int mac_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2246 u64 in_param, u64 *out_param, int in_port) 2247 { 2248 int port; 2249 int err = 0; 2250 2251 switch (op) { 2252 case RES_OP_RESERVE_AND_MAP: 2253 port = !in_port ? get_param_l(out_param) : in_port; 2254 port = mlx4_slave_convert_port( 2255 dev, slave, port); 2256 2257 if (port < 0) 2258 return -EINVAL; 2259 mac_del_from_slave(dev, slave, in_param, port); 2260 __mlx4_unregister_mac(dev, port, in_param); 2261 break; 2262 default: 2263 err = -EINVAL; 2264 break; 2265 } 2266 2267 return err; 2268 2269 } 2270 2271 static int vlan_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2272 u64 in_param, u64 *out_param, int port) 2273 { 2274 struct mlx4_priv *priv = mlx4_priv(dev); 2275 struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state; 2276 int err = 0; 2277 2278 port = mlx4_slave_convert_port( 2279 dev, slave, port); 2280 2281 if (port < 0) 2282 return -EINVAL; 2283 switch (op) { 2284 case RES_OP_RESERVE_AND_MAP: 2285 if (slave_state[slave].old_vlan_api) 2286 return 0; 2287 if (!port) 2288 return -EINVAL; 2289 vlan_del_from_slave(dev, slave, in_param, port); 2290 __mlx4_unregister_vlan(dev, port, in_param); 2291 break; 2292 default: 2293 err = -EINVAL; 2294 break; 2295 } 2296 2297 return err; 2298 } 2299 2300 static int counter_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2301 u64 in_param, u64 *out_param) 2302 { 2303 int index; 2304 int err; 2305 2306 if (op != RES_OP_RESERVE) 2307 return -EINVAL; 2308 2309 index = get_param_l(&in_param); 2310 err = rem_res_range(dev, slave, index, 1, RES_COUNTER, 0); 2311 if (err) 2312 return err; 2313 2314 __mlx4_counter_free(dev, index); 2315 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0); 2316 2317 return err; 2318 } 2319 2320 static int xrcdn_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, 2321 u64 in_param, u64 *out_param) 2322 { 2323 int xrcdn; 2324 int err; 2325 2326 if (op != RES_OP_RESERVE) 2327 return -EINVAL; 2328 2329 xrcdn = get_param_l(&in_param); 2330 err = rem_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0); 2331 if (err) 2332 return err; 2333 2334 __mlx4_xrcd_free(dev, xrcdn); 2335 2336 return err; 2337 } 2338 2339 int mlx4_FREE_RES_wrapper(struct mlx4_dev *dev, int slave, 2340 struct mlx4_vhcr *vhcr, 2341 struct mlx4_cmd_mailbox *inbox, 2342 struct mlx4_cmd_mailbox *outbox, 2343 struct mlx4_cmd_info *cmd) 2344 { 2345 int err = -EINVAL; 2346 int alop = vhcr->op_modifier; 2347 2348 switch (vhcr->in_modifier & 0xFF) { 2349 case RES_QP: 2350 err = qp_free_res(dev, slave, vhcr->op_modifier, alop, 2351 vhcr->in_param); 2352 break; 2353 2354 case RES_MTT: 2355 err = mtt_free_res(dev, slave, vhcr->op_modifier, alop, 2356 vhcr->in_param, &vhcr->out_param); 2357 break; 2358 2359 case RES_MPT: 2360 err = mpt_free_res(dev, slave, vhcr->op_modifier, alop, 2361 vhcr->in_param); 2362 break; 2363 2364 case RES_CQ: 2365 err = cq_free_res(dev, slave, vhcr->op_modifier, alop, 2366 vhcr->in_param, &vhcr->out_param); 2367 break; 2368 2369 case RES_SRQ: 2370 err = srq_free_res(dev, slave, vhcr->op_modifier, alop, 2371 vhcr->in_param, &vhcr->out_param); 2372 break; 2373 2374 case RES_MAC: 2375 err = mac_free_res(dev, slave, vhcr->op_modifier, alop, 2376 vhcr->in_param, &vhcr->out_param, 2377 (vhcr->in_modifier >> 8) & 0xFF); 2378 break; 2379 2380 case RES_VLAN: 2381 err = vlan_free_res(dev, slave, vhcr->op_modifier, alop, 2382 vhcr->in_param, &vhcr->out_param, 2383 (vhcr->in_modifier >> 8) & 0xFF); 2384 break; 2385 2386 case RES_COUNTER: 2387 err = counter_free_res(dev, slave, vhcr->op_modifier, alop, 2388 vhcr->in_param, &vhcr->out_param); 2389 break; 2390 2391 case RES_XRCD: 2392 err = xrcdn_free_res(dev, slave, vhcr->op_modifier, alop, 2393 vhcr->in_param, &vhcr->out_param); 2394 2395 default: 2396 break; 2397 } 2398 return err; 2399 } 2400 2401 /* ugly but other choices are uglier */ 2402 static int mr_phys_mpt(struct mlx4_mpt_entry *mpt) 2403 { 2404 return (be32_to_cpu(mpt->flags) >> 9) & 1; 2405 } 2406 2407 static int mr_get_mtt_addr(struct mlx4_mpt_entry *mpt) 2408 { 2409 return (int)be64_to_cpu(mpt->mtt_addr) & 0xfffffff8; 2410 } 2411 2412 static int mr_get_mtt_size(struct mlx4_mpt_entry *mpt) 2413 { 2414 return be32_to_cpu(mpt->mtt_sz); 2415 } 2416 2417 static u32 mr_get_pd(struct mlx4_mpt_entry *mpt) 2418 { 2419 return be32_to_cpu(mpt->pd_flags) & 0x00ffffff; 2420 } 2421 2422 static int mr_is_fmr(struct mlx4_mpt_entry *mpt) 2423 { 2424 return be32_to_cpu(mpt->pd_flags) & MLX4_MPT_PD_FLAG_FAST_REG; 2425 } 2426 2427 static int mr_is_bind_enabled(struct mlx4_mpt_entry *mpt) 2428 { 2429 return be32_to_cpu(mpt->flags) & MLX4_MPT_FLAG_BIND_ENABLE; 2430 } 2431 2432 static int mr_is_region(struct mlx4_mpt_entry *mpt) 2433 { 2434 return be32_to_cpu(mpt->flags) & MLX4_MPT_FLAG_REGION; 2435 } 2436 2437 static int qp_get_mtt_addr(struct mlx4_qp_context *qpc) 2438 { 2439 return be32_to_cpu(qpc->mtt_base_addr_l) & 0xfffffff8; 2440 } 2441 2442 static int srq_get_mtt_addr(struct mlx4_srq_context *srqc) 2443 { 2444 return be32_to_cpu(srqc->mtt_base_addr_l) & 0xfffffff8; 2445 } 2446 2447 static int qp_get_mtt_size(struct mlx4_qp_context *qpc) 2448 { 2449 int page_shift = (qpc->log_page_size & 0x3f) + 12; 2450 int log_sq_size = (qpc->sq_size_stride >> 3) & 0xf; 2451 int log_sq_sride = qpc->sq_size_stride & 7; 2452 int log_rq_size = (qpc->rq_size_stride >> 3) & 0xf; 2453 int log_rq_stride = qpc->rq_size_stride & 7; 2454 int srq = (be32_to_cpu(qpc->srqn) >> 24) & 1; 2455 int rss = (be32_to_cpu(qpc->flags) >> 13) & 1; 2456 u32 ts = (be32_to_cpu(qpc->flags) >> 16) & 0xff; 2457 int xrc = (ts == MLX4_QP_ST_XRC) ? 1 : 0; 2458 int sq_size; 2459 int rq_size; 2460 int total_pages; 2461 int total_mem; 2462 int page_offset = (be32_to_cpu(qpc->params2) >> 6) & 0x3f; 2463 2464 sq_size = 1 << (log_sq_size + log_sq_sride + 4); 2465 rq_size = (srq|rss|xrc) ? 0 : (1 << (log_rq_size + log_rq_stride + 4)); 2466 total_mem = sq_size + rq_size; 2467 total_pages = 2468 roundup_pow_of_two((total_mem + (page_offset << 6)) >> 2469 page_shift); 2470 2471 return total_pages; 2472 } 2473 2474 static int check_mtt_range(struct mlx4_dev *dev, int slave, int start, 2475 int size, struct res_mtt *mtt) 2476 { 2477 int res_start = mtt->com.res_id; 2478 int res_size = (1 << mtt->order); 2479 2480 if (start < res_start || start + size > res_start + res_size) 2481 return -EPERM; 2482 return 0; 2483 } 2484 2485 int mlx4_SW2HW_MPT_wrapper(struct mlx4_dev *dev, int slave, 2486 struct mlx4_vhcr *vhcr, 2487 struct mlx4_cmd_mailbox *inbox, 2488 struct mlx4_cmd_mailbox *outbox, 2489 struct mlx4_cmd_info *cmd) 2490 { 2491 int err; 2492 int index = vhcr->in_modifier; 2493 struct res_mtt *mtt; 2494 struct res_mpt *mpt; 2495 int mtt_base = mr_get_mtt_addr(inbox->buf) / dev->caps.mtt_entry_sz; 2496 int phys; 2497 int id; 2498 u32 pd; 2499 int pd_slave; 2500 2501 id = index & mpt_mask(dev); 2502 err = mr_res_start_move_to(dev, slave, id, RES_MPT_HW, &mpt); 2503 if (err) 2504 return err; 2505 2506 /* Disable memory windows for VFs. */ 2507 if (!mr_is_region(inbox->buf)) { 2508 err = -EPERM; 2509 goto ex_abort; 2510 } 2511 2512 /* Make sure that the PD bits related to the slave id are zeros. */ 2513 pd = mr_get_pd(inbox->buf); 2514 pd_slave = (pd >> 17) & 0x7f; 2515 if (pd_slave != 0 && pd_slave != slave) { 2516 err = -EPERM; 2517 goto ex_abort; 2518 } 2519 2520 if (mr_is_fmr(inbox->buf)) { 2521 /* FMR and Bind Enable are forbidden in slave devices. */ 2522 if (mr_is_bind_enabled(inbox->buf)) { 2523 err = -EPERM; 2524 goto ex_abort; 2525 } 2526 /* FMR and Memory Windows are also forbidden. */ 2527 if (!mr_is_region(inbox->buf)) { 2528 err = -EPERM; 2529 goto ex_abort; 2530 } 2531 } 2532 2533 phys = mr_phys_mpt(inbox->buf); 2534 if (!phys) { 2535 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); 2536 if (err) 2537 goto ex_abort; 2538 2539 err = check_mtt_range(dev, slave, mtt_base, 2540 mr_get_mtt_size(inbox->buf), mtt); 2541 if (err) 2542 goto ex_put; 2543 2544 mpt->mtt = mtt; 2545 } 2546 2547 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 2548 if (err) 2549 goto ex_put; 2550 2551 if (!phys) { 2552 atomic_inc(&mtt->ref_count); 2553 put_res(dev, slave, mtt->com.res_id, RES_MTT); 2554 } 2555 2556 res_end_move(dev, slave, RES_MPT, id); 2557 return 0; 2558 2559 ex_put: 2560 if (!phys) 2561 put_res(dev, slave, mtt->com.res_id, RES_MTT); 2562 ex_abort: 2563 res_abort_move(dev, slave, RES_MPT, id); 2564 2565 return err; 2566 } 2567 2568 int mlx4_HW2SW_MPT_wrapper(struct mlx4_dev *dev, int slave, 2569 struct mlx4_vhcr *vhcr, 2570 struct mlx4_cmd_mailbox *inbox, 2571 struct mlx4_cmd_mailbox *outbox, 2572 struct mlx4_cmd_info *cmd) 2573 { 2574 int err; 2575 int index = vhcr->in_modifier; 2576 struct res_mpt *mpt; 2577 int id; 2578 2579 id = index & mpt_mask(dev); 2580 err = mr_res_start_move_to(dev, slave, id, RES_MPT_MAPPED, &mpt); 2581 if (err) 2582 return err; 2583 2584 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 2585 if (err) 2586 goto ex_abort; 2587 2588 if (mpt->mtt) 2589 atomic_dec(&mpt->mtt->ref_count); 2590 2591 res_end_move(dev, slave, RES_MPT, id); 2592 return 0; 2593 2594 ex_abort: 2595 res_abort_move(dev, slave, RES_MPT, id); 2596 2597 return err; 2598 } 2599 2600 int mlx4_QUERY_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 = get_res(dev, slave, id, RES_MPT, &mpt); 2613 if (err) 2614 return err; 2615 2616 if (mpt->com.from_state == RES_MPT_MAPPED) { 2617 /* In order to allow rereg in SRIOV, we need to alter the MPT entry. To do 2618 * that, the VF must read the MPT. But since the MPT entry memory is not 2619 * in the VF's virtual memory space, it must use QUERY_MPT to obtain the 2620 * entry contents. To guarantee that the MPT cannot be changed, the driver 2621 * must perform HW2SW_MPT before this query and return the MPT entry to HW 2622 * ownership fofollowing the change. The change here allows the VF to 2623 * perform QUERY_MPT also when the entry is in SW ownership. 2624 */ 2625 struct mlx4_mpt_entry *mpt_entry = mlx4_table_find( 2626 &mlx4_priv(dev)->mr_table.dmpt_table, 2627 mpt->key, NULL); 2628 2629 if (NULL == mpt_entry || NULL == outbox->buf) { 2630 err = -EINVAL; 2631 goto out; 2632 } 2633 2634 memcpy(outbox->buf, mpt_entry, sizeof(*mpt_entry)); 2635 2636 err = 0; 2637 } else if (mpt->com.from_state == RES_MPT_HW) { 2638 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 2639 } else { 2640 err = -EBUSY; 2641 goto out; 2642 } 2643 2644 2645 out: 2646 put_res(dev, slave, id, RES_MPT); 2647 return err; 2648 } 2649 2650 static int qp_get_rcqn(struct mlx4_qp_context *qpc) 2651 { 2652 return be32_to_cpu(qpc->cqn_recv) & 0xffffff; 2653 } 2654 2655 static int qp_get_scqn(struct mlx4_qp_context *qpc) 2656 { 2657 return be32_to_cpu(qpc->cqn_send) & 0xffffff; 2658 } 2659 2660 static u32 qp_get_srqn(struct mlx4_qp_context *qpc) 2661 { 2662 return be32_to_cpu(qpc->srqn) & 0x1ffffff; 2663 } 2664 2665 static void adjust_proxy_tun_qkey(struct mlx4_dev *dev, struct mlx4_vhcr *vhcr, 2666 struct mlx4_qp_context *context) 2667 { 2668 u32 qpn = vhcr->in_modifier & 0xffffff; 2669 u32 qkey = 0; 2670 2671 if (mlx4_get_parav_qkey(dev, qpn, &qkey)) 2672 return; 2673 2674 /* adjust qkey in qp context */ 2675 context->qkey = cpu_to_be32(qkey); 2676 } 2677 2678 int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave, 2679 struct mlx4_vhcr *vhcr, 2680 struct mlx4_cmd_mailbox *inbox, 2681 struct mlx4_cmd_mailbox *outbox, 2682 struct mlx4_cmd_info *cmd) 2683 { 2684 int err; 2685 int qpn = vhcr->in_modifier & 0x7fffff; 2686 struct res_mtt *mtt; 2687 struct res_qp *qp; 2688 struct mlx4_qp_context *qpc = inbox->buf + 8; 2689 int mtt_base = qp_get_mtt_addr(qpc) / dev->caps.mtt_entry_sz; 2690 int mtt_size = qp_get_mtt_size(qpc); 2691 struct res_cq *rcq; 2692 struct res_cq *scq; 2693 int rcqn = qp_get_rcqn(qpc); 2694 int scqn = qp_get_scqn(qpc); 2695 u32 srqn = qp_get_srqn(qpc) & 0xffffff; 2696 int use_srq = (qp_get_srqn(qpc) >> 24) & 1; 2697 struct res_srq *srq; 2698 int local_qpn = be32_to_cpu(qpc->local_qpn) & 0xffffff; 2699 2700 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_HW, &qp, 0); 2701 if (err) 2702 return err; 2703 qp->local_qpn = local_qpn; 2704 qp->sched_queue = 0; 2705 qp->param3 = 0; 2706 qp->vlan_control = 0; 2707 qp->fvl_rx = 0; 2708 qp->pri_path_fl = 0; 2709 qp->vlan_index = 0; 2710 qp->feup = 0; 2711 qp->qpc_flags = be32_to_cpu(qpc->flags); 2712 2713 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); 2714 if (err) 2715 goto ex_abort; 2716 2717 err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt); 2718 if (err) 2719 goto ex_put_mtt; 2720 2721 err = get_res(dev, slave, rcqn, RES_CQ, &rcq); 2722 if (err) 2723 goto ex_put_mtt; 2724 2725 if (scqn != rcqn) { 2726 err = get_res(dev, slave, scqn, RES_CQ, &scq); 2727 if (err) 2728 goto ex_put_rcq; 2729 } else 2730 scq = rcq; 2731 2732 if (use_srq) { 2733 err = get_res(dev, slave, srqn, RES_SRQ, &srq); 2734 if (err) 2735 goto ex_put_scq; 2736 } 2737 2738 adjust_proxy_tun_qkey(dev, vhcr, qpc); 2739 update_pkey_index(dev, slave, inbox); 2740 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 2741 if (err) 2742 goto ex_put_srq; 2743 atomic_inc(&mtt->ref_count); 2744 qp->mtt = mtt; 2745 atomic_inc(&rcq->ref_count); 2746 qp->rcq = rcq; 2747 atomic_inc(&scq->ref_count); 2748 qp->scq = scq; 2749 2750 if (scqn != rcqn) 2751 put_res(dev, slave, scqn, RES_CQ); 2752 2753 if (use_srq) { 2754 atomic_inc(&srq->ref_count); 2755 put_res(dev, slave, srqn, RES_SRQ); 2756 qp->srq = srq; 2757 } 2758 put_res(dev, slave, rcqn, RES_CQ); 2759 put_res(dev, slave, mtt_base, RES_MTT); 2760 res_end_move(dev, slave, RES_QP, qpn); 2761 2762 return 0; 2763 2764 ex_put_srq: 2765 if (use_srq) 2766 put_res(dev, slave, srqn, RES_SRQ); 2767 ex_put_scq: 2768 if (scqn != rcqn) 2769 put_res(dev, slave, scqn, RES_CQ); 2770 ex_put_rcq: 2771 put_res(dev, slave, rcqn, RES_CQ); 2772 ex_put_mtt: 2773 put_res(dev, slave, mtt_base, RES_MTT); 2774 ex_abort: 2775 res_abort_move(dev, slave, RES_QP, qpn); 2776 2777 return err; 2778 } 2779 2780 static int eq_get_mtt_addr(struct mlx4_eq_context *eqc) 2781 { 2782 return be32_to_cpu(eqc->mtt_base_addr_l) & 0xfffffff8; 2783 } 2784 2785 static int eq_get_mtt_size(struct mlx4_eq_context *eqc) 2786 { 2787 int log_eq_size = eqc->log_eq_size & 0x1f; 2788 int page_shift = (eqc->log_page_size & 0x3f) + 12; 2789 2790 if (log_eq_size + 5 < page_shift) 2791 return 1; 2792 2793 return 1 << (log_eq_size + 5 - page_shift); 2794 } 2795 2796 static int cq_get_mtt_addr(struct mlx4_cq_context *cqc) 2797 { 2798 return be32_to_cpu(cqc->mtt_base_addr_l) & 0xfffffff8; 2799 } 2800 2801 static int cq_get_mtt_size(struct mlx4_cq_context *cqc) 2802 { 2803 int log_cq_size = (be32_to_cpu(cqc->logsize_usrpage) >> 24) & 0x1f; 2804 int page_shift = (cqc->log_page_size & 0x3f) + 12; 2805 2806 if (log_cq_size + 5 < page_shift) 2807 return 1; 2808 2809 return 1 << (log_cq_size + 5 - page_shift); 2810 } 2811 2812 int mlx4_SW2HW_EQ_wrapper(struct mlx4_dev *dev, int slave, 2813 struct mlx4_vhcr *vhcr, 2814 struct mlx4_cmd_mailbox *inbox, 2815 struct mlx4_cmd_mailbox *outbox, 2816 struct mlx4_cmd_info *cmd) 2817 { 2818 int err; 2819 int eqn = vhcr->in_modifier; 2820 int res_id = (slave << 8) | eqn; 2821 struct mlx4_eq_context *eqc = inbox->buf; 2822 int mtt_base = eq_get_mtt_addr(eqc) / dev->caps.mtt_entry_sz; 2823 int mtt_size = eq_get_mtt_size(eqc); 2824 struct res_eq *eq; 2825 struct res_mtt *mtt; 2826 2827 err = add_res_range(dev, slave, res_id, 1, RES_EQ, 0); 2828 if (err) 2829 return err; 2830 err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_HW, &eq); 2831 if (err) 2832 goto out_add; 2833 2834 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); 2835 if (err) 2836 goto out_move; 2837 2838 err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt); 2839 if (err) 2840 goto out_put; 2841 2842 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 2843 if (err) 2844 goto out_put; 2845 2846 atomic_inc(&mtt->ref_count); 2847 eq->mtt = mtt; 2848 put_res(dev, slave, mtt->com.res_id, RES_MTT); 2849 res_end_move(dev, slave, RES_EQ, res_id); 2850 return 0; 2851 2852 out_put: 2853 put_res(dev, slave, mtt->com.res_id, RES_MTT); 2854 out_move: 2855 res_abort_move(dev, slave, RES_EQ, res_id); 2856 out_add: 2857 rem_res_range(dev, slave, res_id, 1, RES_EQ, 0); 2858 return err; 2859 } 2860 2861 static int get_containing_mtt(struct mlx4_dev *dev, int slave, int start, 2862 int len, struct res_mtt **res) 2863 { 2864 struct mlx4_priv *priv = mlx4_priv(dev); 2865 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 2866 struct res_mtt *mtt; 2867 int err = -EINVAL; 2868 2869 spin_lock_irq(mlx4_tlock(dev)); 2870 list_for_each_entry(mtt, &tracker->slave_list[slave].res_list[RES_MTT], 2871 com.list) { 2872 if (!check_mtt_range(dev, slave, start, len, mtt)) { 2873 *res = mtt; 2874 mtt->com.from_state = mtt->com.state; 2875 mtt->com.state = RES_MTT_BUSY; 2876 err = 0; 2877 break; 2878 } 2879 } 2880 spin_unlock_irq(mlx4_tlock(dev)); 2881 2882 return err; 2883 } 2884 2885 static int verify_qp_parameters(struct mlx4_dev *dev, 2886 struct mlx4_vhcr *vhcr, 2887 struct mlx4_cmd_mailbox *inbox, 2888 enum qp_transition transition, u8 slave) 2889 { 2890 u32 qp_type; 2891 u32 qpn; 2892 struct mlx4_qp_context *qp_ctx; 2893 enum mlx4_qp_optpar optpar; 2894 int port; 2895 int num_gids; 2896 2897 qp_ctx = inbox->buf + 8; 2898 qp_type = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff; 2899 optpar = be32_to_cpu(*(__be32 *) inbox->buf); 2900 2901 switch (qp_type) { 2902 case MLX4_QP_ST_RC: 2903 case MLX4_QP_ST_XRC: 2904 case MLX4_QP_ST_UC: 2905 switch (transition) { 2906 case QP_TRANS_INIT2RTR: 2907 case QP_TRANS_RTR2RTS: 2908 case QP_TRANS_RTS2RTS: 2909 case QP_TRANS_SQD2SQD: 2910 case QP_TRANS_SQD2RTS: 2911 if (slave != mlx4_master_func_num(dev)) 2912 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH) { 2913 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1; 2914 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) 2915 num_gids = mlx4_get_slave_num_gids(dev, slave, port); 2916 else 2917 num_gids = 1; 2918 if (qp_ctx->pri_path.mgid_index >= num_gids) 2919 return -EINVAL; 2920 } 2921 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) { 2922 port = (qp_ctx->alt_path.sched_queue >> 6 & 1) + 1; 2923 if (dev->caps.port_mask[port] != MLX4_PORT_TYPE_IB) 2924 num_gids = mlx4_get_slave_num_gids(dev, slave, port); 2925 else 2926 num_gids = 1; 2927 if (qp_ctx->alt_path.mgid_index >= num_gids) 2928 return -EINVAL; 2929 } 2930 break; 2931 default: 2932 break; 2933 } 2934 break; 2935 2936 case MLX4_QP_ST_MLX: 2937 qpn = vhcr->in_modifier & 0x7fffff; 2938 port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1; 2939 if (transition == QP_TRANS_INIT2RTR && 2940 slave != mlx4_master_func_num(dev) && 2941 mlx4_is_qp_reserved(dev, qpn) && 2942 !mlx4_vf_smi_enabled(dev, slave, port)) { 2943 /* only enabled VFs may create MLX proxy QPs */ 2944 mlx4_err(dev, "%s: unprivileged slave %d attempting to create an MLX proxy special QP on port %d\n", 2945 __func__, slave, port); 2946 return -EPERM; 2947 } 2948 break; 2949 2950 default: 2951 break; 2952 } 2953 2954 return 0; 2955 } 2956 2957 int mlx4_WRITE_MTT_wrapper(struct mlx4_dev *dev, int slave, 2958 struct mlx4_vhcr *vhcr, 2959 struct mlx4_cmd_mailbox *inbox, 2960 struct mlx4_cmd_mailbox *outbox, 2961 struct mlx4_cmd_info *cmd) 2962 { 2963 struct mlx4_mtt mtt; 2964 __be64 *page_list = inbox->buf; 2965 u64 *pg_list = (u64 *)page_list; 2966 int i; 2967 struct res_mtt *rmtt = NULL; 2968 int start = be64_to_cpu(page_list[0]); 2969 int npages = vhcr->in_modifier; 2970 int err; 2971 2972 err = get_containing_mtt(dev, slave, start, npages, &rmtt); 2973 if (err) 2974 return err; 2975 2976 /* Call the SW implementation of write_mtt: 2977 * - Prepare a dummy mtt struct 2978 * - Translate inbox contents to simple addresses in host endianess */ 2979 mtt.offset = 0; /* TBD this is broken but I don't handle it since 2980 we don't really use it */ 2981 mtt.order = 0; 2982 mtt.page_shift = 0; 2983 for (i = 0; i < npages; ++i) 2984 pg_list[i + 2] = (be64_to_cpu(page_list[i + 2]) & ~1ULL); 2985 2986 err = __mlx4_write_mtt(dev, &mtt, be64_to_cpu(page_list[0]), npages, 2987 ((u64 *)page_list + 2)); 2988 2989 if (rmtt) 2990 put_res(dev, slave, rmtt->com.res_id, RES_MTT); 2991 2992 return err; 2993 } 2994 2995 int mlx4_HW2SW_EQ_wrapper(struct mlx4_dev *dev, int slave, 2996 struct mlx4_vhcr *vhcr, 2997 struct mlx4_cmd_mailbox *inbox, 2998 struct mlx4_cmd_mailbox *outbox, 2999 struct mlx4_cmd_info *cmd) 3000 { 3001 int eqn = vhcr->in_modifier; 3002 int res_id = eqn | (slave << 8); 3003 struct res_eq *eq; 3004 int err; 3005 3006 err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_RESERVED, &eq); 3007 if (err) 3008 return err; 3009 3010 err = get_res(dev, slave, eq->mtt->com.res_id, RES_MTT, NULL); 3011 if (err) 3012 goto ex_abort; 3013 3014 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3015 if (err) 3016 goto ex_put; 3017 3018 atomic_dec(&eq->mtt->ref_count); 3019 put_res(dev, slave, eq->mtt->com.res_id, RES_MTT); 3020 res_end_move(dev, slave, RES_EQ, res_id); 3021 rem_res_range(dev, slave, res_id, 1, RES_EQ, 0); 3022 3023 return 0; 3024 3025 ex_put: 3026 put_res(dev, slave, eq->mtt->com.res_id, RES_MTT); 3027 ex_abort: 3028 res_abort_move(dev, slave, RES_EQ, res_id); 3029 3030 return err; 3031 } 3032 3033 int mlx4_GEN_EQE(struct mlx4_dev *dev, int slave, struct mlx4_eqe *eqe) 3034 { 3035 struct mlx4_priv *priv = mlx4_priv(dev); 3036 struct mlx4_slave_event_eq_info *event_eq; 3037 struct mlx4_cmd_mailbox *mailbox; 3038 u32 in_modifier = 0; 3039 int err; 3040 int res_id; 3041 struct res_eq *req; 3042 3043 if (!priv->mfunc.master.slave_state) 3044 return -EINVAL; 3045 3046 event_eq = &priv->mfunc.master.slave_state[slave].event_eq[eqe->type]; 3047 3048 /* Create the event only if the slave is registered */ 3049 if (event_eq->eqn < 0) 3050 return 0; 3051 3052 mutex_lock(&priv->mfunc.master.gen_eqe_mutex[slave]); 3053 res_id = (slave << 8) | event_eq->eqn; 3054 err = get_res(dev, slave, res_id, RES_EQ, &req); 3055 if (err) 3056 goto unlock; 3057 3058 if (req->com.from_state != RES_EQ_HW) { 3059 err = -EINVAL; 3060 goto put; 3061 } 3062 3063 mailbox = mlx4_alloc_cmd_mailbox(dev); 3064 if (IS_ERR(mailbox)) { 3065 err = PTR_ERR(mailbox); 3066 goto put; 3067 } 3068 3069 if (eqe->type == MLX4_EVENT_TYPE_CMD) { 3070 ++event_eq->token; 3071 eqe->event.cmd.token = cpu_to_be16(event_eq->token); 3072 } 3073 3074 memcpy(mailbox->buf, (u8 *) eqe, 28); 3075 3076 in_modifier = (slave & 0xff) | ((event_eq->eqn & 0xff) << 16); 3077 3078 err = mlx4_cmd(dev, mailbox->dma, in_modifier, 0, 3079 MLX4_CMD_GEN_EQE, MLX4_CMD_TIME_CLASS_B, 3080 MLX4_CMD_NATIVE); 3081 3082 put_res(dev, slave, res_id, RES_EQ); 3083 mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]); 3084 mlx4_free_cmd_mailbox(dev, mailbox); 3085 return err; 3086 3087 put: 3088 put_res(dev, slave, res_id, RES_EQ); 3089 3090 unlock: 3091 mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]); 3092 return err; 3093 } 3094 3095 int mlx4_QUERY_EQ_wrapper(struct mlx4_dev *dev, int slave, 3096 struct mlx4_vhcr *vhcr, 3097 struct mlx4_cmd_mailbox *inbox, 3098 struct mlx4_cmd_mailbox *outbox, 3099 struct mlx4_cmd_info *cmd) 3100 { 3101 int eqn = vhcr->in_modifier; 3102 int res_id = eqn | (slave << 8); 3103 struct res_eq *eq; 3104 int err; 3105 3106 err = get_res(dev, slave, res_id, RES_EQ, &eq); 3107 if (err) 3108 return err; 3109 3110 if (eq->com.from_state != RES_EQ_HW) { 3111 err = -EINVAL; 3112 goto ex_put; 3113 } 3114 3115 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3116 3117 ex_put: 3118 put_res(dev, slave, res_id, RES_EQ); 3119 return err; 3120 } 3121 3122 int mlx4_SW2HW_CQ_wrapper(struct mlx4_dev *dev, int slave, 3123 struct mlx4_vhcr *vhcr, 3124 struct mlx4_cmd_mailbox *inbox, 3125 struct mlx4_cmd_mailbox *outbox, 3126 struct mlx4_cmd_info *cmd) 3127 { 3128 int err; 3129 int cqn = vhcr->in_modifier; 3130 struct mlx4_cq_context *cqc = inbox->buf; 3131 int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz; 3132 struct res_cq *cq; 3133 struct res_mtt *mtt; 3134 3135 err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_HW, &cq); 3136 if (err) 3137 return err; 3138 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); 3139 if (err) 3140 goto out_move; 3141 err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt); 3142 if (err) 3143 goto out_put; 3144 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3145 if (err) 3146 goto out_put; 3147 atomic_inc(&mtt->ref_count); 3148 cq->mtt = mtt; 3149 put_res(dev, slave, mtt->com.res_id, RES_MTT); 3150 res_end_move(dev, slave, RES_CQ, cqn); 3151 return 0; 3152 3153 out_put: 3154 put_res(dev, slave, mtt->com.res_id, RES_MTT); 3155 out_move: 3156 res_abort_move(dev, slave, RES_CQ, cqn); 3157 return err; 3158 } 3159 3160 int mlx4_HW2SW_CQ_wrapper(struct mlx4_dev *dev, int slave, 3161 struct mlx4_vhcr *vhcr, 3162 struct mlx4_cmd_mailbox *inbox, 3163 struct mlx4_cmd_mailbox *outbox, 3164 struct mlx4_cmd_info *cmd) 3165 { 3166 int err; 3167 int cqn = vhcr->in_modifier; 3168 struct res_cq *cq; 3169 3170 err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_ALLOCATED, &cq); 3171 if (err) 3172 return err; 3173 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3174 if (err) 3175 goto out_move; 3176 atomic_dec(&cq->mtt->ref_count); 3177 res_end_move(dev, slave, RES_CQ, cqn); 3178 return 0; 3179 3180 out_move: 3181 res_abort_move(dev, slave, RES_CQ, cqn); 3182 return err; 3183 } 3184 3185 int mlx4_QUERY_CQ_wrapper(struct mlx4_dev *dev, int slave, 3186 struct mlx4_vhcr *vhcr, 3187 struct mlx4_cmd_mailbox *inbox, 3188 struct mlx4_cmd_mailbox *outbox, 3189 struct mlx4_cmd_info *cmd) 3190 { 3191 int cqn = vhcr->in_modifier; 3192 struct res_cq *cq; 3193 int err; 3194 3195 err = get_res(dev, slave, cqn, RES_CQ, &cq); 3196 if (err) 3197 return err; 3198 3199 if (cq->com.from_state != RES_CQ_HW) 3200 goto ex_put; 3201 3202 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3203 ex_put: 3204 put_res(dev, slave, cqn, RES_CQ); 3205 3206 return err; 3207 } 3208 3209 static int handle_resize(struct mlx4_dev *dev, int slave, 3210 struct mlx4_vhcr *vhcr, 3211 struct mlx4_cmd_mailbox *inbox, 3212 struct mlx4_cmd_mailbox *outbox, 3213 struct mlx4_cmd_info *cmd, 3214 struct res_cq *cq) 3215 { 3216 int err; 3217 struct res_mtt *orig_mtt; 3218 struct res_mtt *mtt; 3219 struct mlx4_cq_context *cqc = inbox->buf; 3220 int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz; 3221 3222 err = get_res(dev, slave, cq->mtt->com.res_id, RES_MTT, &orig_mtt); 3223 if (err) 3224 return err; 3225 3226 if (orig_mtt != cq->mtt) { 3227 err = -EINVAL; 3228 goto ex_put; 3229 } 3230 3231 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); 3232 if (err) 3233 goto ex_put; 3234 3235 err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt); 3236 if (err) 3237 goto ex_put1; 3238 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3239 if (err) 3240 goto ex_put1; 3241 atomic_dec(&orig_mtt->ref_count); 3242 put_res(dev, slave, orig_mtt->com.res_id, RES_MTT); 3243 atomic_inc(&mtt->ref_count); 3244 cq->mtt = mtt; 3245 put_res(dev, slave, mtt->com.res_id, RES_MTT); 3246 return 0; 3247 3248 ex_put1: 3249 put_res(dev, slave, mtt->com.res_id, RES_MTT); 3250 ex_put: 3251 put_res(dev, slave, orig_mtt->com.res_id, RES_MTT); 3252 3253 return err; 3254 3255 } 3256 3257 int mlx4_MODIFY_CQ_wrapper(struct mlx4_dev *dev, int slave, 3258 struct mlx4_vhcr *vhcr, 3259 struct mlx4_cmd_mailbox *inbox, 3260 struct mlx4_cmd_mailbox *outbox, 3261 struct mlx4_cmd_info *cmd) 3262 { 3263 int cqn = vhcr->in_modifier; 3264 struct res_cq *cq; 3265 int err; 3266 3267 err = get_res(dev, slave, cqn, RES_CQ, &cq); 3268 if (err) 3269 return err; 3270 3271 if (cq->com.from_state != RES_CQ_HW) 3272 goto ex_put; 3273 3274 if (vhcr->op_modifier == 0) { 3275 err = handle_resize(dev, slave, vhcr, inbox, outbox, cmd, cq); 3276 goto ex_put; 3277 } 3278 3279 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3280 ex_put: 3281 put_res(dev, slave, cqn, RES_CQ); 3282 3283 return err; 3284 } 3285 3286 static int srq_get_mtt_size(struct mlx4_srq_context *srqc) 3287 { 3288 int log_srq_size = (be32_to_cpu(srqc->state_logsize_srqn) >> 24) & 0xf; 3289 int log_rq_stride = srqc->logstride & 7; 3290 int page_shift = (srqc->log_page_size & 0x3f) + 12; 3291 3292 if (log_srq_size + log_rq_stride + 4 < page_shift) 3293 return 1; 3294 3295 return 1 << (log_srq_size + log_rq_stride + 4 - page_shift); 3296 } 3297 3298 int mlx4_SW2HW_SRQ_wrapper(struct mlx4_dev *dev, int slave, 3299 struct mlx4_vhcr *vhcr, 3300 struct mlx4_cmd_mailbox *inbox, 3301 struct mlx4_cmd_mailbox *outbox, 3302 struct mlx4_cmd_info *cmd) 3303 { 3304 int err; 3305 int srqn = vhcr->in_modifier; 3306 struct res_mtt *mtt; 3307 struct res_srq *srq; 3308 struct mlx4_srq_context *srqc = inbox->buf; 3309 int mtt_base = srq_get_mtt_addr(srqc) / dev->caps.mtt_entry_sz; 3310 3311 if (srqn != (be32_to_cpu(srqc->state_logsize_srqn) & 0xffffff)) 3312 return -EINVAL; 3313 3314 err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_HW, &srq); 3315 if (err) 3316 return err; 3317 err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); 3318 if (err) 3319 goto ex_abort; 3320 err = check_mtt_range(dev, slave, mtt_base, srq_get_mtt_size(srqc), 3321 mtt); 3322 if (err) 3323 goto ex_put_mtt; 3324 3325 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3326 if (err) 3327 goto ex_put_mtt; 3328 3329 atomic_inc(&mtt->ref_count); 3330 srq->mtt = mtt; 3331 put_res(dev, slave, mtt->com.res_id, RES_MTT); 3332 res_end_move(dev, slave, RES_SRQ, srqn); 3333 return 0; 3334 3335 ex_put_mtt: 3336 put_res(dev, slave, mtt->com.res_id, RES_MTT); 3337 ex_abort: 3338 res_abort_move(dev, slave, RES_SRQ, srqn); 3339 3340 return err; 3341 } 3342 3343 int mlx4_HW2SW_SRQ_wrapper(struct mlx4_dev *dev, int slave, 3344 struct mlx4_vhcr *vhcr, 3345 struct mlx4_cmd_mailbox *inbox, 3346 struct mlx4_cmd_mailbox *outbox, 3347 struct mlx4_cmd_info *cmd) 3348 { 3349 int err; 3350 int srqn = vhcr->in_modifier; 3351 struct res_srq *srq; 3352 3353 err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_ALLOCATED, &srq); 3354 if (err) 3355 return err; 3356 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3357 if (err) 3358 goto ex_abort; 3359 atomic_dec(&srq->mtt->ref_count); 3360 if (srq->cq) 3361 atomic_dec(&srq->cq->ref_count); 3362 res_end_move(dev, slave, RES_SRQ, srqn); 3363 3364 return 0; 3365 3366 ex_abort: 3367 res_abort_move(dev, slave, RES_SRQ, srqn); 3368 3369 return err; 3370 } 3371 3372 int mlx4_QUERY_SRQ_wrapper(struct mlx4_dev *dev, int slave, 3373 struct mlx4_vhcr *vhcr, 3374 struct mlx4_cmd_mailbox *inbox, 3375 struct mlx4_cmd_mailbox *outbox, 3376 struct mlx4_cmd_info *cmd) 3377 { 3378 int err; 3379 int srqn = vhcr->in_modifier; 3380 struct res_srq *srq; 3381 3382 err = get_res(dev, slave, srqn, RES_SRQ, &srq); 3383 if (err) 3384 return err; 3385 if (srq->com.from_state != RES_SRQ_HW) { 3386 err = -EBUSY; 3387 goto out; 3388 } 3389 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3390 out: 3391 put_res(dev, slave, srqn, RES_SRQ); 3392 return err; 3393 } 3394 3395 int mlx4_ARM_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 = get_res(dev, slave, srqn, RES_SRQ, &srq); 3406 if (err) 3407 return err; 3408 3409 if (srq->com.from_state != RES_SRQ_HW) { 3410 err = -EBUSY; 3411 goto out; 3412 } 3413 3414 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3415 out: 3416 put_res(dev, slave, srqn, RES_SRQ); 3417 return err; 3418 } 3419 3420 int mlx4_GEN_QP_wrapper(struct mlx4_dev *dev, int slave, 3421 struct mlx4_vhcr *vhcr, 3422 struct mlx4_cmd_mailbox *inbox, 3423 struct mlx4_cmd_mailbox *outbox, 3424 struct mlx4_cmd_info *cmd) 3425 { 3426 int err; 3427 int qpn = vhcr->in_modifier & 0x7fffff; 3428 struct res_qp *qp; 3429 3430 err = get_res(dev, slave, qpn, RES_QP, &qp); 3431 if (err) 3432 return err; 3433 if (qp->com.from_state != RES_QP_HW) { 3434 err = -EBUSY; 3435 goto out; 3436 } 3437 3438 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3439 out: 3440 put_res(dev, slave, qpn, RES_QP); 3441 return err; 3442 } 3443 3444 int mlx4_INIT2INIT_QP_wrapper(struct mlx4_dev *dev, int slave, 3445 struct mlx4_vhcr *vhcr, 3446 struct mlx4_cmd_mailbox *inbox, 3447 struct mlx4_cmd_mailbox *outbox, 3448 struct mlx4_cmd_info *cmd) 3449 { 3450 struct mlx4_qp_context *context = inbox->buf + 8; 3451 adjust_proxy_tun_qkey(dev, vhcr, context); 3452 update_pkey_index(dev, slave, inbox); 3453 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3454 } 3455 3456 static int adjust_qp_sched_queue(struct mlx4_dev *dev, int slave, 3457 struct mlx4_qp_context *qpc, 3458 struct mlx4_cmd_mailbox *inbox) 3459 { 3460 enum mlx4_qp_optpar optpar = be32_to_cpu(*(__be32 *)inbox->buf); 3461 u8 pri_sched_queue; 3462 int port = mlx4_slave_convert_port( 3463 dev, slave, (qpc->pri_path.sched_queue >> 6 & 1) + 1) - 1; 3464 3465 if (port < 0) 3466 return -EINVAL; 3467 3468 pri_sched_queue = (qpc->pri_path.sched_queue & ~(1 << 6)) | 3469 ((port & 1) << 6); 3470 3471 if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH || 3472 mlx4_is_eth(dev, port + 1)) { 3473 qpc->pri_path.sched_queue = pri_sched_queue; 3474 } 3475 3476 if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) { 3477 port = mlx4_slave_convert_port( 3478 dev, slave, (qpc->alt_path.sched_queue >> 6 & 1) 3479 + 1) - 1; 3480 if (port < 0) 3481 return -EINVAL; 3482 qpc->alt_path.sched_queue = 3483 (qpc->alt_path.sched_queue & ~(1 << 6)) | 3484 (port & 1) << 6; 3485 } 3486 return 0; 3487 } 3488 3489 static int roce_verify_mac(struct mlx4_dev *dev, int slave, 3490 struct mlx4_qp_context *qpc, 3491 struct mlx4_cmd_mailbox *inbox) 3492 { 3493 u64 mac; 3494 int port; 3495 u32 ts = (be32_to_cpu(qpc->flags) >> 16) & 0xff; 3496 u8 sched = *(u8 *)(inbox->buf + 64); 3497 u8 smac_ix; 3498 3499 port = (sched >> 6 & 1) + 1; 3500 if (mlx4_is_eth(dev, port) && (ts != MLX4_QP_ST_MLX)) { 3501 smac_ix = qpc->pri_path.grh_mylmc & 0x7f; 3502 if (mac_find_smac_ix_in_slave(dev, slave, port, smac_ix, &mac)) 3503 return -ENOENT; 3504 } 3505 return 0; 3506 } 3507 3508 int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave, 3509 struct mlx4_vhcr *vhcr, 3510 struct mlx4_cmd_mailbox *inbox, 3511 struct mlx4_cmd_mailbox *outbox, 3512 struct mlx4_cmd_info *cmd) 3513 { 3514 int err; 3515 struct mlx4_qp_context *qpc = inbox->buf + 8; 3516 int qpn = vhcr->in_modifier & 0x7fffff; 3517 struct res_qp *qp; 3518 u8 orig_sched_queue; 3519 __be32 orig_param3 = qpc->param3; 3520 u8 orig_vlan_control = qpc->pri_path.vlan_control; 3521 u8 orig_fvl_rx = qpc->pri_path.fvl_rx; 3522 u8 orig_pri_path_fl = qpc->pri_path.fl; 3523 u8 orig_vlan_index = qpc->pri_path.vlan_index; 3524 u8 orig_feup = qpc->pri_path.feup; 3525 3526 err = adjust_qp_sched_queue(dev, slave, qpc, inbox); 3527 if (err) 3528 return err; 3529 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_INIT2RTR, slave); 3530 if (err) 3531 return err; 3532 3533 if (roce_verify_mac(dev, slave, qpc, inbox)) 3534 return -EINVAL; 3535 3536 update_pkey_index(dev, slave, inbox); 3537 update_gid(dev, inbox, (u8)slave); 3538 adjust_proxy_tun_qkey(dev, vhcr, qpc); 3539 orig_sched_queue = qpc->pri_path.sched_queue; 3540 err = update_vport_qp_param(dev, inbox, slave, qpn); 3541 if (err) 3542 return err; 3543 3544 err = get_res(dev, slave, qpn, RES_QP, &qp); 3545 if (err) 3546 return err; 3547 if (qp->com.from_state != RES_QP_HW) { 3548 err = -EBUSY; 3549 goto out; 3550 } 3551 3552 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3553 out: 3554 /* if no error, save sched queue value passed in by VF. This is 3555 * essentially the QOS value provided by the VF. This will be useful 3556 * if we allow dynamic changes from VST back to VGT 3557 */ 3558 if (!err) { 3559 qp->sched_queue = orig_sched_queue; 3560 qp->param3 = orig_param3; 3561 qp->vlan_control = orig_vlan_control; 3562 qp->fvl_rx = orig_fvl_rx; 3563 qp->pri_path_fl = orig_pri_path_fl; 3564 qp->vlan_index = orig_vlan_index; 3565 qp->feup = orig_feup; 3566 } 3567 put_res(dev, slave, qpn, RES_QP); 3568 return err; 3569 } 3570 3571 int mlx4_RTR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave, 3572 struct mlx4_vhcr *vhcr, 3573 struct mlx4_cmd_mailbox *inbox, 3574 struct mlx4_cmd_mailbox *outbox, 3575 struct mlx4_cmd_info *cmd) 3576 { 3577 int err; 3578 struct mlx4_qp_context *context = inbox->buf + 8; 3579 3580 err = adjust_qp_sched_queue(dev, slave, context, inbox); 3581 if (err) 3582 return err; 3583 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_RTR2RTS, slave); 3584 if (err) 3585 return err; 3586 3587 update_pkey_index(dev, slave, inbox); 3588 update_gid(dev, inbox, (u8)slave); 3589 adjust_proxy_tun_qkey(dev, vhcr, context); 3590 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3591 } 3592 3593 int mlx4_RTS2RTS_QP_wrapper(struct mlx4_dev *dev, int slave, 3594 struct mlx4_vhcr *vhcr, 3595 struct mlx4_cmd_mailbox *inbox, 3596 struct mlx4_cmd_mailbox *outbox, 3597 struct mlx4_cmd_info *cmd) 3598 { 3599 int err; 3600 struct mlx4_qp_context *context = inbox->buf + 8; 3601 3602 err = adjust_qp_sched_queue(dev, slave, context, inbox); 3603 if (err) 3604 return err; 3605 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_RTS2RTS, slave); 3606 if (err) 3607 return err; 3608 3609 update_pkey_index(dev, slave, inbox); 3610 update_gid(dev, inbox, (u8)slave); 3611 adjust_proxy_tun_qkey(dev, vhcr, context); 3612 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3613 } 3614 3615 3616 int mlx4_SQERR2RTS_QP_wrapper(struct mlx4_dev *dev, int slave, 3617 struct mlx4_vhcr *vhcr, 3618 struct mlx4_cmd_mailbox *inbox, 3619 struct mlx4_cmd_mailbox *outbox, 3620 struct mlx4_cmd_info *cmd) 3621 { 3622 struct mlx4_qp_context *context = inbox->buf + 8; 3623 int err = adjust_qp_sched_queue(dev, slave, context, inbox); 3624 if (err) 3625 return err; 3626 adjust_proxy_tun_qkey(dev, vhcr, context); 3627 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3628 } 3629 3630 int mlx4_SQD2SQD_QP_wrapper(struct mlx4_dev *dev, int slave, 3631 struct mlx4_vhcr *vhcr, 3632 struct mlx4_cmd_mailbox *inbox, 3633 struct mlx4_cmd_mailbox *outbox, 3634 struct mlx4_cmd_info *cmd) 3635 { 3636 int err; 3637 struct mlx4_qp_context *context = inbox->buf + 8; 3638 3639 err = adjust_qp_sched_queue(dev, slave, context, inbox); 3640 if (err) 3641 return err; 3642 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_SQD2SQD, slave); 3643 if (err) 3644 return err; 3645 3646 adjust_proxy_tun_qkey(dev, vhcr, context); 3647 update_gid(dev, inbox, (u8)slave); 3648 update_pkey_index(dev, slave, inbox); 3649 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3650 } 3651 3652 int mlx4_SQD2RTS_QP_wrapper(struct mlx4_dev *dev, int slave, 3653 struct mlx4_vhcr *vhcr, 3654 struct mlx4_cmd_mailbox *inbox, 3655 struct mlx4_cmd_mailbox *outbox, 3656 struct mlx4_cmd_info *cmd) 3657 { 3658 int err; 3659 struct mlx4_qp_context *context = inbox->buf + 8; 3660 3661 err = adjust_qp_sched_queue(dev, slave, context, inbox); 3662 if (err) 3663 return err; 3664 err = verify_qp_parameters(dev, vhcr, inbox, QP_TRANS_SQD2RTS, slave); 3665 if (err) 3666 return err; 3667 3668 adjust_proxy_tun_qkey(dev, vhcr, context); 3669 update_gid(dev, inbox, (u8)slave); 3670 update_pkey_index(dev, slave, inbox); 3671 return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3672 } 3673 3674 int mlx4_2RST_QP_wrapper(struct mlx4_dev *dev, int slave, 3675 struct mlx4_vhcr *vhcr, 3676 struct mlx4_cmd_mailbox *inbox, 3677 struct mlx4_cmd_mailbox *outbox, 3678 struct mlx4_cmd_info *cmd) 3679 { 3680 int err; 3681 int qpn = vhcr->in_modifier & 0x7fffff; 3682 struct res_qp *qp; 3683 3684 err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, &qp, 0); 3685 if (err) 3686 return err; 3687 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 3688 if (err) 3689 goto ex_abort; 3690 3691 atomic_dec(&qp->mtt->ref_count); 3692 atomic_dec(&qp->rcq->ref_count); 3693 atomic_dec(&qp->scq->ref_count); 3694 if (qp->srq) 3695 atomic_dec(&qp->srq->ref_count); 3696 res_end_move(dev, slave, RES_QP, qpn); 3697 return 0; 3698 3699 ex_abort: 3700 res_abort_move(dev, slave, RES_QP, qpn); 3701 3702 return err; 3703 } 3704 3705 static struct res_gid *find_gid(struct mlx4_dev *dev, int slave, 3706 struct res_qp *rqp, u8 *gid) 3707 { 3708 struct res_gid *res; 3709 3710 list_for_each_entry(res, &rqp->mcg_list, list) { 3711 if (!memcmp(res->gid, gid, 16)) 3712 return res; 3713 } 3714 return NULL; 3715 } 3716 3717 static int add_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp, 3718 u8 *gid, enum mlx4_protocol prot, 3719 enum mlx4_steer_type steer, u64 reg_id) 3720 { 3721 struct res_gid *res; 3722 int err; 3723 3724 res = kzalloc(sizeof *res, GFP_KERNEL); 3725 if (!res) 3726 return -ENOMEM; 3727 3728 spin_lock_irq(&rqp->mcg_spl); 3729 if (find_gid(dev, slave, rqp, gid)) { 3730 kfree(res); 3731 err = -EEXIST; 3732 } else { 3733 memcpy(res->gid, gid, 16); 3734 res->prot = prot; 3735 res->steer = steer; 3736 res->reg_id = reg_id; 3737 list_add_tail(&res->list, &rqp->mcg_list); 3738 err = 0; 3739 } 3740 spin_unlock_irq(&rqp->mcg_spl); 3741 3742 return err; 3743 } 3744 3745 static int rem_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp, 3746 u8 *gid, enum mlx4_protocol prot, 3747 enum mlx4_steer_type steer, u64 *reg_id) 3748 { 3749 struct res_gid *res; 3750 int err; 3751 3752 spin_lock_irq(&rqp->mcg_spl); 3753 res = find_gid(dev, slave, rqp, gid); 3754 if (!res || res->prot != prot || res->steer != steer) 3755 err = -EINVAL; 3756 else { 3757 *reg_id = res->reg_id; 3758 list_del(&res->list); 3759 kfree(res); 3760 err = 0; 3761 } 3762 spin_unlock_irq(&rqp->mcg_spl); 3763 3764 return err; 3765 } 3766 3767 static int qp_attach(struct mlx4_dev *dev, int slave, struct mlx4_qp *qp, 3768 u8 gid[16], int block_loopback, enum mlx4_protocol prot, 3769 enum mlx4_steer_type type, u64 *reg_id) 3770 { 3771 switch (dev->caps.steering_mode) { 3772 case MLX4_STEERING_MODE_DEVICE_MANAGED: { 3773 int port = mlx4_slave_convert_port(dev, slave, gid[5]); 3774 if (port < 0) 3775 return port; 3776 return mlx4_trans_to_dmfs_attach(dev, qp, gid, port, 3777 block_loopback, prot, 3778 reg_id); 3779 } 3780 case MLX4_STEERING_MODE_B0: 3781 if (prot == MLX4_PROT_ETH) { 3782 int port = mlx4_slave_convert_port(dev, slave, gid[5]); 3783 if (port < 0) 3784 return port; 3785 gid[5] = port; 3786 } 3787 return mlx4_qp_attach_common(dev, qp, gid, 3788 block_loopback, prot, type); 3789 default: 3790 return -EINVAL; 3791 } 3792 } 3793 3794 static int qp_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, 3795 u8 gid[16], enum mlx4_protocol prot, 3796 enum mlx4_steer_type type, u64 reg_id) 3797 { 3798 switch (dev->caps.steering_mode) { 3799 case MLX4_STEERING_MODE_DEVICE_MANAGED: 3800 return mlx4_flow_detach(dev, reg_id); 3801 case MLX4_STEERING_MODE_B0: 3802 return mlx4_qp_detach_common(dev, qp, gid, prot, type); 3803 default: 3804 return -EINVAL; 3805 } 3806 } 3807 3808 static int mlx4_adjust_port(struct mlx4_dev *dev, int slave, 3809 u8 *gid, enum mlx4_protocol prot) 3810 { 3811 int real_port; 3812 3813 if (prot != MLX4_PROT_ETH) 3814 return 0; 3815 3816 if (dev->caps.steering_mode == MLX4_STEERING_MODE_B0 || 3817 dev->caps.steering_mode == MLX4_STEERING_MODE_DEVICE_MANAGED) { 3818 real_port = mlx4_slave_convert_port(dev, slave, gid[5]); 3819 if (real_port < 0) 3820 return -EINVAL; 3821 gid[5] = real_port; 3822 } 3823 3824 return 0; 3825 } 3826 3827 int mlx4_QP_ATTACH_wrapper(struct mlx4_dev *dev, int slave, 3828 struct mlx4_vhcr *vhcr, 3829 struct mlx4_cmd_mailbox *inbox, 3830 struct mlx4_cmd_mailbox *outbox, 3831 struct mlx4_cmd_info *cmd) 3832 { 3833 struct mlx4_qp qp; /* dummy for calling attach/detach */ 3834 u8 *gid = inbox->buf; 3835 enum mlx4_protocol prot = (vhcr->in_modifier >> 28) & 0x7; 3836 int err; 3837 int qpn; 3838 struct res_qp *rqp; 3839 u64 reg_id = 0; 3840 int attach = vhcr->op_modifier; 3841 int block_loopback = vhcr->in_modifier >> 31; 3842 u8 steer_type_mask = 2; 3843 enum mlx4_steer_type type = (gid[7] & steer_type_mask) >> 1; 3844 3845 qpn = vhcr->in_modifier & 0xffffff; 3846 err = get_res(dev, slave, qpn, RES_QP, &rqp); 3847 if (err) 3848 return err; 3849 3850 qp.qpn = qpn; 3851 if (attach) { 3852 err = qp_attach(dev, slave, &qp, gid, block_loopback, prot, 3853 type, ®_id); 3854 if (err) { 3855 pr_err("Fail to attach rule to qp 0x%x\n", qpn); 3856 goto ex_put; 3857 } 3858 err = add_mcg_res(dev, slave, rqp, gid, prot, type, reg_id); 3859 if (err) 3860 goto ex_detach; 3861 } else { 3862 err = mlx4_adjust_port(dev, slave, gid, prot); 3863 if (err) 3864 goto ex_put; 3865 3866 err = rem_mcg_res(dev, slave, rqp, gid, prot, type, ®_id); 3867 if (err) 3868 goto ex_put; 3869 3870 err = qp_detach(dev, &qp, gid, prot, type, reg_id); 3871 if (err) 3872 pr_err("Fail to detach rule from qp 0x%x reg_id = 0x%llx\n", 3873 qpn, reg_id); 3874 } 3875 put_res(dev, slave, qpn, RES_QP); 3876 return err; 3877 3878 ex_detach: 3879 qp_detach(dev, &qp, gid, prot, type, reg_id); 3880 ex_put: 3881 put_res(dev, slave, qpn, RES_QP); 3882 return err; 3883 } 3884 3885 /* 3886 * MAC validation for Flow Steering rules. 3887 * VF can attach rules only with a mac address which is assigned to it. 3888 */ 3889 static int validate_eth_header_mac(int slave, struct _rule_hw *eth_header, 3890 struct list_head *rlist) 3891 { 3892 struct mac_res *res, *tmp; 3893 __be64 be_mac; 3894 3895 /* make sure it isn't multicast or broadcast mac*/ 3896 if (!is_multicast_ether_addr(eth_header->eth.dst_mac) && 3897 !is_broadcast_ether_addr(eth_header->eth.dst_mac)) { 3898 list_for_each_entry_safe(res, tmp, rlist, list) { 3899 be_mac = cpu_to_be64(res->mac << 16); 3900 if (ether_addr_equal((u8 *)&be_mac, eth_header->eth.dst_mac)) 3901 return 0; 3902 } 3903 pr_err("MAC %pM doesn't belong to VF %d, Steering rule rejected\n", 3904 eth_header->eth.dst_mac, slave); 3905 return -EINVAL; 3906 } 3907 return 0; 3908 } 3909 3910 /* 3911 * In case of missing eth header, append eth header with a MAC address 3912 * assigned to the VF. 3913 */ 3914 static int add_eth_header(struct mlx4_dev *dev, int slave, 3915 struct mlx4_cmd_mailbox *inbox, 3916 struct list_head *rlist, int header_id) 3917 { 3918 struct mac_res *res, *tmp; 3919 u8 port; 3920 struct mlx4_net_trans_rule_hw_ctrl *ctrl; 3921 struct mlx4_net_trans_rule_hw_eth *eth_header; 3922 struct mlx4_net_trans_rule_hw_ipv4 *ip_header; 3923 struct mlx4_net_trans_rule_hw_tcp_udp *l4_header; 3924 __be64 be_mac = 0; 3925 __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16); 3926 3927 ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf; 3928 port = ctrl->port; 3929 eth_header = (struct mlx4_net_trans_rule_hw_eth *)(ctrl + 1); 3930 3931 /* Clear a space in the inbox for eth header */ 3932 switch (header_id) { 3933 case MLX4_NET_TRANS_RULE_ID_IPV4: 3934 ip_header = 3935 (struct mlx4_net_trans_rule_hw_ipv4 *)(eth_header + 1); 3936 memmove(ip_header, eth_header, 3937 sizeof(*ip_header) + sizeof(*l4_header)); 3938 break; 3939 case MLX4_NET_TRANS_RULE_ID_TCP: 3940 case MLX4_NET_TRANS_RULE_ID_UDP: 3941 l4_header = (struct mlx4_net_trans_rule_hw_tcp_udp *) 3942 (eth_header + 1); 3943 memmove(l4_header, eth_header, sizeof(*l4_header)); 3944 break; 3945 default: 3946 return -EINVAL; 3947 } 3948 list_for_each_entry_safe(res, tmp, rlist, list) { 3949 if (port == res->port) { 3950 be_mac = cpu_to_be64(res->mac << 16); 3951 break; 3952 } 3953 } 3954 if (!be_mac) { 3955 pr_err("Failed adding eth header to FS rule, Can't find matching MAC for port %d\n", 3956 port); 3957 return -EINVAL; 3958 } 3959 3960 memset(eth_header, 0, sizeof(*eth_header)); 3961 eth_header->size = sizeof(*eth_header) >> 2; 3962 eth_header->id = cpu_to_be16(__sw_id_hw[MLX4_NET_TRANS_RULE_ID_ETH]); 3963 memcpy(eth_header->dst_mac, &be_mac, ETH_ALEN); 3964 memcpy(eth_header->dst_mac_msk, &mac_msk, ETH_ALEN); 3965 3966 return 0; 3967 3968 } 3969 3970 #define MLX4_UPD_QP_PATH_MASK_SUPPORTED (1ULL << MLX4_UPD_QP_PATH_MASK_MAC_INDEX) 3971 int mlx4_UPDATE_QP_wrapper(struct mlx4_dev *dev, int slave, 3972 struct mlx4_vhcr *vhcr, 3973 struct mlx4_cmd_mailbox *inbox, 3974 struct mlx4_cmd_mailbox *outbox, 3975 struct mlx4_cmd_info *cmd_info) 3976 { 3977 int err; 3978 u32 qpn = vhcr->in_modifier & 0xffffff; 3979 struct res_qp *rqp; 3980 u64 mac; 3981 unsigned port; 3982 u64 pri_addr_path_mask; 3983 struct mlx4_update_qp_context *cmd; 3984 int smac_index; 3985 3986 cmd = (struct mlx4_update_qp_context *)inbox->buf; 3987 3988 pri_addr_path_mask = be64_to_cpu(cmd->primary_addr_path_mask); 3989 if (cmd->qp_mask || cmd->secondary_addr_path_mask || 3990 (pri_addr_path_mask & ~MLX4_UPD_QP_PATH_MASK_SUPPORTED)) 3991 return -EPERM; 3992 3993 /* Just change the smac for the QP */ 3994 err = get_res(dev, slave, qpn, RES_QP, &rqp); 3995 if (err) { 3996 mlx4_err(dev, "Updating qpn 0x%x for slave %d rejected\n", qpn, slave); 3997 return err; 3998 } 3999 4000 port = (rqp->sched_queue >> 6 & 1) + 1; 4001 smac_index = cmd->qp_context.pri_path.grh_mylmc; 4002 err = mac_find_smac_ix_in_slave(dev, slave, port, 4003 smac_index, &mac); 4004 if (err) { 4005 mlx4_err(dev, "Failed to update qpn 0x%x, MAC is invalid. smac_ix: %d\n", 4006 qpn, smac_index); 4007 goto err_mac; 4008 } 4009 4010 err = mlx4_cmd(dev, inbox->dma, 4011 vhcr->in_modifier, 0, 4012 MLX4_CMD_UPDATE_QP, MLX4_CMD_TIME_CLASS_A, 4013 MLX4_CMD_NATIVE); 4014 if (err) { 4015 mlx4_err(dev, "Failed to update qpn on qpn 0x%x, command failed\n", qpn); 4016 goto err_mac; 4017 } 4018 4019 err_mac: 4020 put_res(dev, slave, qpn, RES_QP); 4021 return err; 4022 } 4023 4024 int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave, 4025 struct mlx4_vhcr *vhcr, 4026 struct mlx4_cmd_mailbox *inbox, 4027 struct mlx4_cmd_mailbox *outbox, 4028 struct mlx4_cmd_info *cmd) 4029 { 4030 4031 struct mlx4_priv *priv = mlx4_priv(dev); 4032 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 4033 struct list_head *rlist = &tracker->slave_list[slave].res_list[RES_MAC]; 4034 int err; 4035 int qpn; 4036 struct res_qp *rqp; 4037 struct mlx4_net_trans_rule_hw_ctrl *ctrl; 4038 struct _rule_hw *rule_header; 4039 int header_id; 4040 4041 if (dev->caps.steering_mode != 4042 MLX4_STEERING_MODE_DEVICE_MANAGED) 4043 return -EOPNOTSUPP; 4044 4045 ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf; 4046 ctrl->port = mlx4_slave_convert_port(dev, slave, ctrl->port); 4047 if (ctrl->port <= 0) 4048 return -EINVAL; 4049 qpn = be32_to_cpu(ctrl->qpn) & 0xffffff; 4050 err = get_res(dev, slave, qpn, RES_QP, &rqp); 4051 if (err) { 4052 pr_err("Steering rule with qpn 0x%x rejected\n", qpn); 4053 return err; 4054 } 4055 rule_header = (struct _rule_hw *)(ctrl + 1); 4056 header_id = map_hw_to_sw_id(be16_to_cpu(rule_header->id)); 4057 4058 switch (header_id) { 4059 case MLX4_NET_TRANS_RULE_ID_ETH: 4060 if (validate_eth_header_mac(slave, rule_header, rlist)) { 4061 err = -EINVAL; 4062 goto err_put; 4063 } 4064 break; 4065 case MLX4_NET_TRANS_RULE_ID_IB: 4066 break; 4067 case MLX4_NET_TRANS_RULE_ID_IPV4: 4068 case MLX4_NET_TRANS_RULE_ID_TCP: 4069 case MLX4_NET_TRANS_RULE_ID_UDP: 4070 pr_warn("Can't attach FS rule without L2 headers, adding L2 header\n"); 4071 if (add_eth_header(dev, slave, inbox, rlist, header_id)) { 4072 err = -EINVAL; 4073 goto err_put; 4074 } 4075 vhcr->in_modifier += 4076 sizeof(struct mlx4_net_trans_rule_hw_eth) >> 2; 4077 break; 4078 default: 4079 pr_err("Corrupted mailbox\n"); 4080 err = -EINVAL; 4081 goto err_put; 4082 } 4083 4084 err = mlx4_cmd_imm(dev, inbox->dma, &vhcr->out_param, 4085 vhcr->in_modifier, 0, 4086 MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A, 4087 MLX4_CMD_NATIVE); 4088 if (err) 4089 goto err_put; 4090 4091 err = add_res_range(dev, slave, vhcr->out_param, 1, RES_FS_RULE, qpn); 4092 if (err) { 4093 mlx4_err(dev, "Fail to add flow steering resources\n"); 4094 /* detach rule*/ 4095 mlx4_cmd(dev, vhcr->out_param, 0, 0, 4096 MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A, 4097 MLX4_CMD_NATIVE); 4098 goto err_put; 4099 } 4100 atomic_inc(&rqp->ref_count); 4101 err_put: 4102 put_res(dev, slave, qpn, RES_QP); 4103 return err; 4104 } 4105 4106 int mlx4_QP_FLOW_STEERING_DETACH_wrapper(struct mlx4_dev *dev, int slave, 4107 struct mlx4_vhcr *vhcr, 4108 struct mlx4_cmd_mailbox *inbox, 4109 struct mlx4_cmd_mailbox *outbox, 4110 struct mlx4_cmd_info *cmd) 4111 { 4112 int err; 4113 struct res_qp *rqp; 4114 struct res_fs_rule *rrule; 4115 4116 if (dev->caps.steering_mode != 4117 MLX4_STEERING_MODE_DEVICE_MANAGED) 4118 return -EOPNOTSUPP; 4119 4120 err = get_res(dev, slave, vhcr->in_param, RES_FS_RULE, &rrule); 4121 if (err) 4122 return err; 4123 /* Release the rule form busy state before removal */ 4124 put_res(dev, slave, vhcr->in_param, RES_FS_RULE); 4125 err = get_res(dev, slave, rrule->qpn, RES_QP, &rqp); 4126 if (err) 4127 return err; 4128 4129 err = rem_res_range(dev, slave, vhcr->in_param, 1, RES_FS_RULE, 0); 4130 if (err) { 4131 mlx4_err(dev, "Fail to remove flow steering resources\n"); 4132 goto out; 4133 } 4134 4135 err = mlx4_cmd(dev, vhcr->in_param, 0, 0, 4136 MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A, 4137 MLX4_CMD_NATIVE); 4138 if (!err) 4139 atomic_dec(&rqp->ref_count); 4140 out: 4141 put_res(dev, slave, rrule->qpn, RES_QP); 4142 return err; 4143 } 4144 4145 enum { 4146 BUSY_MAX_RETRIES = 10 4147 }; 4148 4149 int mlx4_QUERY_IF_STAT_wrapper(struct mlx4_dev *dev, int slave, 4150 struct mlx4_vhcr *vhcr, 4151 struct mlx4_cmd_mailbox *inbox, 4152 struct mlx4_cmd_mailbox *outbox, 4153 struct mlx4_cmd_info *cmd) 4154 { 4155 int err; 4156 int index = vhcr->in_modifier & 0xffff; 4157 4158 err = get_res(dev, slave, index, RES_COUNTER, NULL); 4159 if (err) 4160 return err; 4161 4162 err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); 4163 put_res(dev, slave, index, RES_COUNTER); 4164 return err; 4165 } 4166 4167 static void detach_qp(struct mlx4_dev *dev, int slave, struct res_qp *rqp) 4168 { 4169 struct res_gid *rgid; 4170 struct res_gid *tmp; 4171 struct mlx4_qp qp; /* dummy for calling attach/detach */ 4172 4173 list_for_each_entry_safe(rgid, tmp, &rqp->mcg_list, list) { 4174 switch (dev->caps.steering_mode) { 4175 case MLX4_STEERING_MODE_DEVICE_MANAGED: 4176 mlx4_flow_detach(dev, rgid->reg_id); 4177 break; 4178 case MLX4_STEERING_MODE_B0: 4179 qp.qpn = rqp->local_qpn; 4180 (void) mlx4_qp_detach_common(dev, &qp, rgid->gid, 4181 rgid->prot, rgid->steer); 4182 break; 4183 } 4184 list_del(&rgid->list); 4185 kfree(rgid); 4186 } 4187 } 4188 4189 static int _move_all_busy(struct mlx4_dev *dev, int slave, 4190 enum mlx4_resource type, int print) 4191 { 4192 struct mlx4_priv *priv = mlx4_priv(dev); 4193 struct mlx4_resource_tracker *tracker = 4194 &priv->mfunc.master.res_tracker; 4195 struct list_head *rlist = &tracker->slave_list[slave].res_list[type]; 4196 struct res_common *r; 4197 struct res_common *tmp; 4198 int busy; 4199 4200 busy = 0; 4201 spin_lock_irq(mlx4_tlock(dev)); 4202 list_for_each_entry_safe(r, tmp, rlist, list) { 4203 if (r->owner == slave) { 4204 if (!r->removing) { 4205 if (r->state == RES_ANY_BUSY) { 4206 if (print) 4207 mlx4_dbg(dev, 4208 "%s id 0x%llx is busy\n", 4209 resource_str(type), 4210 r->res_id); 4211 ++busy; 4212 } else { 4213 r->from_state = r->state; 4214 r->state = RES_ANY_BUSY; 4215 r->removing = 1; 4216 } 4217 } 4218 } 4219 } 4220 spin_unlock_irq(mlx4_tlock(dev)); 4221 4222 return busy; 4223 } 4224 4225 static int move_all_busy(struct mlx4_dev *dev, int slave, 4226 enum mlx4_resource type) 4227 { 4228 unsigned long begin; 4229 int busy; 4230 4231 begin = jiffies; 4232 do { 4233 busy = _move_all_busy(dev, slave, type, 0); 4234 if (time_after(jiffies, begin + 5 * HZ)) 4235 break; 4236 if (busy) 4237 cond_resched(); 4238 } while (busy); 4239 4240 if (busy) 4241 busy = _move_all_busy(dev, slave, type, 1); 4242 4243 return busy; 4244 } 4245 static void rem_slave_qps(struct mlx4_dev *dev, int slave) 4246 { 4247 struct mlx4_priv *priv = mlx4_priv(dev); 4248 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 4249 struct list_head *qp_list = 4250 &tracker->slave_list[slave].res_list[RES_QP]; 4251 struct res_qp *qp; 4252 struct res_qp *tmp; 4253 int state; 4254 u64 in_param; 4255 int qpn; 4256 int err; 4257 4258 err = move_all_busy(dev, slave, RES_QP); 4259 if (err) 4260 mlx4_warn(dev, "rem_slave_qps: Could not move all qps to busy for slave %d\n", 4261 slave); 4262 4263 spin_lock_irq(mlx4_tlock(dev)); 4264 list_for_each_entry_safe(qp, tmp, qp_list, com.list) { 4265 spin_unlock_irq(mlx4_tlock(dev)); 4266 if (qp->com.owner == slave) { 4267 qpn = qp->com.res_id; 4268 detach_qp(dev, slave, qp); 4269 state = qp->com.from_state; 4270 while (state != 0) { 4271 switch (state) { 4272 case RES_QP_RESERVED: 4273 spin_lock_irq(mlx4_tlock(dev)); 4274 rb_erase(&qp->com.node, 4275 &tracker->res_tree[RES_QP]); 4276 list_del(&qp->com.list); 4277 spin_unlock_irq(mlx4_tlock(dev)); 4278 if (!valid_reserved(dev, slave, qpn)) { 4279 __mlx4_qp_release_range(dev, qpn, 1); 4280 mlx4_release_resource(dev, slave, 4281 RES_QP, 1, 0); 4282 } 4283 kfree(qp); 4284 state = 0; 4285 break; 4286 case RES_QP_MAPPED: 4287 if (!valid_reserved(dev, slave, qpn)) 4288 __mlx4_qp_free_icm(dev, qpn); 4289 state = RES_QP_RESERVED; 4290 break; 4291 case RES_QP_HW: 4292 in_param = slave; 4293 err = mlx4_cmd(dev, in_param, 4294 qp->local_qpn, 2, 4295 MLX4_CMD_2RST_QP, 4296 MLX4_CMD_TIME_CLASS_A, 4297 MLX4_CMD_NATIVE); 4298 if (err) 4299 mlx4_dbg(dev, "rem_slave_qps: failed to move slave %d qpn %d to reset\n", 4300 slave, qp->local_qpn); 4301 atomic_dec(&qp->rcq->ref_count); 4302 atomic_dec(&qp->scq->ref_count); 4303 atomic_dec(&qp->mtt->ref_count); 4304 if (qp->srq) 4305 atomic_dec(&qp->srq->ref_count); 4306 state = RES_QP_MAPPED; 4307 break; 4308 default: 4309 state = 0; 4310 } 4311 } 4312 } 4313 spin_lock_irq(mlx4_tlock(dev)); 4314 } 4315 spin_unlock_irq(mlx4_tlock(dev)); 4316 } 4317 4318 static void rem_slave_srqs(struct mlx4_dev *dev, int slave) 4319 { 4320 struct mlx4_priv *priv = mlx4_priv(dev); 4321 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 4322 struct list_head *srq_list = 4323 &tracker->slave_list[slave].res_list[RES_SRQ]; 4324 struct res_srq *srq; 4325 struct res_srq *tmp; 4326 int state; 4327 u64 in_param; 4328 LIST_HEAD(tlist); 4329 int srqn; 4330 int err; 4331 4332 err = move_all_busy(dev, slave, RES_SRQ); 4333 if (err) 4334 mlx4_warn(dev, "rem_slave_srqs: Could not move all srqs - too busy for slave %d\n", 4335 slave); 4336 4337 spin_lock_irq(mlx4_tlock(dev)); 4338 list_for_each_entry_safe(srq, tmp, srq_list, com.list) { 4339 spin_unlock_irq(mlx4_tlock(dev)); 4340 if (srq->com.owner == slave) { 4341 srqn = srq->com.res_id; 4342 state = srq->com.from_state; 4343 while (state != 0) { 4344 switch (state) { 4345 case RES_SRQ_ALLOCATED: 4346 __mlx4_srq_free_icm(dev, srqn); 4347 spin_lock_irq(mlx4_tlock(dev)); 4348 rb_erase(&srq->com.node, 4349 &tracker->res_tree[RES_SRQ]); 4350 list_del(&srq->com.list); 4351 spin_unlock_irq(mlx4_tlock(dev)); 4352 mlx4_release_resource(dev, slave, 4353 RES_SRQ, 1, 0); 4354 kfree(srq); 4355 state = 0; 4356 break; 4357 4358 case RES_SRQ_HW: 4359 in_param = slave; 4360 err = mlx4_cmd(dev, in_param, srqn, 1, 4361 MLX4_CMD_HW2SW_SRQ, 4362 MLX4_CMD_TIME_CLASS_A, 4363 MLX4_CMD_NATIVE); 4364 if (err) 4365 mlx4_dbg(dev, "rem_slave_srqs: failed to move slave %d srq %d to SW ownership\n", 4366 slave, srqn); 4367 4368 atomic_dec(&srq->mtt->ref_count); 4369 if (srq->cq) 4370 atomic_dec(&srq->cq->ref_count); 4371 state = RES_SRQ_ALLOCATED; 4372 break; 4373 4374 default: 4375 state = 0; 4376 } 4377 } 4378 } 4379 spin_lock_irq(mlx4_tlock(dev)); 4380 } 4381 spin_unlock_irq(mlx4_tlock(dev)); 4382 } 4383 4384 static void rem_slave_cqs(struct mlx4_dev *dev, int slave) 4385 { 4386 struct mlx4_priv *priv = mlx4_priv(dev); 4387 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 4388 struct list_head *cq_list = 4389 &tracker->slave_list[slave].res_list[RES_CQ]; 4390 struct res_cq *cq; 4391 struct res_cq *tmp; 4392 int state; 4393 u64 in_param; 4394 LIST_HEAD(tlist); 4395 int cqn; 4396 int err; 4397 4398 err = move_all_busy(dev, slave, RES_CQ); 4399 if (err) 4400 mlx4_warn(dev, "rem_slave_cqs: Could not move all cqs - too busy for slave %d\n", 4401 slave); 4402 4403 spin_lock_irq(mlx4_tlock(dev)); 4404 list_for_each_entry_safe(cq, tmp, cq_list, com.list) { 4405 spin_unlock_irq(mlx4_tlock(dev)); 4406 if (cq->com.owner == slave && !atomic_read(&cq->ref_count)) { 4407 cqn = cq->com.res_id; 4408 state = cq->com.from_state; 4409 while (state != 0) { 4410 switch (state) { 4411 case RES_CQ_ALLOCATED: 4412 __mlx4_cq_free_icm(dev, cqn); 4413 spin_lock_irq(mlx4_tlock(dev)); 4414 rb_erase(&cq->com.node, 4415 &tracker->res_tree[RES_CQ]); 4416 list_del(&cq->com.list); 4417 spin_unlock_irq(mlx4_tlock(dev)); 4418 mlx4_release_resource(dev, slave, 4419 RES_CQ, 1, 0); 4420 kfree(cq); 4421 state = 0; 4422 break; 4423 4424 case RES_CQ_HW: 4425 in_param = slave; 4426 err = mlx4_cmd(dev, in_param, cqn, 1, 4427 MLX4_CMD_HW2SW_CQ, 4428 MLX4_CMD_TIME_CLASS_A, 4429 MLX4_CMD_NATIVE); 4430 if (err) 4431 mlx4_dbg(dev, "rem_slave_cqs: failed to move slave %d cq %d to SW ownership\n", 4432 slave, cqn); 4433 atomic_dec(&cq->mtt->ref_count); 4434 state = RES_CQ_ALLOCATED; 4435 break; 4436 4437 default: 4438 state = 0; 4439 } 4440 } 4441 } 4442 spin_lock_irq(mlx4_tlock(dev)); 4443 } 4444 spin_unlock_irq(mlx4_tlock(dev)); 4445 } 4446 4447 static void rem_slave_mrs(struct mlx4_dev *dev, int slave) 4448 { 4449 struct mlx4_priv *priv = mlx4_priv(dev); 4450 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 4451 struct list_head *mpt_list = 4452 &tracker->slave_list[slave].res_list[RES_MPT]; 4453 struct res_mpt *mpt; 4454 struct res_mpt *tmp; 4455 int state; 4456 u64 in_param; 4457 LIST_HEAD(tlist); 4458 int mptn; 4459 int err; 4460 4461 err = move_all_busy(dev, slave, RES_MPT); 4462 if (err) 4463 mlx4_warn(dev, "rem_slave_mrs: Could not move all mpts - too busy for slave %d\n", 4464 slave); 4465 4466 spin_lock_irq(mlx4_tlock(dev)); 4467 list_for_each_entry_safe(mpt, tmp, mpt_list, com.list) { 4468 spin_unlock_irq(mlx4_tlock(dev)); 4469 if (mpt->com.owner == slave) { 4470 mptn = mpt->com.res_id; 4471 state = mpt->com.from_state; 4472 while (state != 0) { 4473 switch (state) { 4474 case RES_MPT_RESERVED: 4475 __mlx4_mpt_release(dev, mpt->key); 4476 spin_lock_irq(mlx4_tlock(dev)); 4477 rb_erase(&mpt->com.node, 4478 &tracker->res_tree[RES_MPT]); 4479 list_del(&mpt->com.list); 4480 spin_unlock_irq(mlx4_tlock(dev)); 4481 mlx4_release_resource(dev, slave, 4482 RES_MPT, 1, 0); 4483 kfree(mpt); 4484 state = 0; 4485 break; 4486 4487 case RES_MPT_MAPPED: 4488 __mlx4_mpt_free_icm(dev, mpt->key); 4489 state = RES_MPT_RESERVED; 4490 break; 4491 4492 case RES_MPT_HW: 4493 in_param = slave; 4494 err = mlx4_cmd(dev, in_param, mptn, 0, 4495 MLX4_CMD_HW2SW_MPT, 4496 MLX4_CMD_TIME_CLASS_A, 4497 MLX4_CMD_NATIVE); 4498 if (err) 4499 mlx4_dbg(dev, "rem_slave_mrs: failed to move slave %d mpt %d to SW ownership\n", 4500 slave, mptn); 4501 if (mpt->mtt) 4502 atomic_dec(&mpt->mtt->ref_count); 4503 state = RES_MPT_MAPPED; 4504 break; 4505 default: 4506 state = 0; 4507 } 4508 } 4509 } 4510 spin_lock_irq(mlx4_tlock(dev)); 4511 } 4512 spin_unlock_irq(mlx4_tlock(dev)); 4513 } 4514 4515 static void rem_slave_mtts(struct mlx4_dev *dev, int slave) 4516 { 4517 struct mlx4_priv *priv = mlx4_priv(dev); 4518 struct mlx4_resource_tracker *tracker = 4519 &priv->mfunc.master.res_tracker; 4520 struct list_head *mtt_list = 4521 &tracker->slave_list[slave].res_list[RES_MTT]; 4522 struct res_mtt *mtt; 4523 struct res_mtt *tmp; 4524 int state; 4525 LIST_HEAD(tlist); 4526 int base; 4527 int err; 4528 4529 err = move_all_busy(dev, slave, RES_MTT); 4530 if (err) 4531 mlx4_warn(dev, "rem_slave_mtts: Could not move all mtts - too busy for slave %d\n", 4532 slave); 4533 4534 spin_lock_irq(mlx4_tlock(dev)); 4535 list_for_each_entry_safe(mtt, tmp, mtt_list, com.list) { 4536 spin_unlock_irq(mlx4_tlock(dev)); 4537 if (mtt->com.owner == slave) { 4538 base = mtt->com.res_id; 4539 state = mtt->com.from_state; 4540 while (state != 0) { 4541 switch (state) { 4542 case RES_MTT_ALLOCATED: 4543 __mlx4_free_mtt_range(dev, base, 4544 mtt->order); 4545 spin_lock_irq(mlx4_tlock(dev)); 4546 rb_erase(&mtt->com.node, 4547 &tracker->res_tree[RES_MTT]); 4548 list_del(&mtt->com.list); 4549 spin_unlock_irq(mlx4_tlock(dev)); 4550 mlx4_release_resource(dev, slave, RES_MTT, 4551 1 << mtt->order, 0); 4552 kfree(mtt); 4553 state = 0; 4554 break; 4555 4556 default: 4557 state = 0; 4558 } 4559 } 4560 } 4561 spin_lock_irq(mlx4_tlock(dev)); 4562 } 4563 spin_unlock_irq(mlx4_tlock(dev)); 4564 } 4565 4566 static void rem_slave_fs_rule(struct mlx4_dev *dev, int slave) 4567 { 4568 struct mlx4_priv *priv = mlx4_priv(dev); 4569 struct mlx4_resource_tracker *tracker = 4570 &priv->mfunc.master.res_tracker; 4571 struct list_head *fs_rule_list = 4572 &tracker->slave_list[slave].res_list[RES_FS_RULE]; 4573 struct res_fs_rule *fs_rule; 4574 struct res_fs_rule *tmp; 4575 int state; 4576 u64 base; 4577 int err; 4578 4579 err = move_all_busy(dev, slave, RES_FS_RULE); 4580 if (err) 4581 mlx4_warn(dev, "rem_slave_fs_rule: Could not move all mtts to busy for slave %d\n", 4582 slave); 4583 4584 spin_lock_irq(mlx4_tlock(dev)); 4585 list_for_each_entry_safe(fs_rule, tmp, fs_rule_list, com.list) { 4586 spin_unlock_irq(mlx4_tlock(dev)); 4587 if (fs_rule->com.owner == slave) { 4588 base = fs_rule->com.res_id; 4589 state = fs_rule->com.from_state; 4590 while (state != 0) { 4591 switch (state) { 4592 case RES_FS_RULE_ALLOCATED: 4593 /* detach rule */ 4594 err = mlx4_cmd(dev, base, 0, 0, 4595 MLX4_QP_FLOW_STEERING_DETACH, 4596 MLX4_CMD_TIME_CLASS_A, 4597 MLX4_CMD_NATIVE); 4598 4599 spin_lock_irq(mlx4_tlock(dev)); 4600 rb_erase(&fs_rule->com.node, 4601 &tracker->res_tree[RES_FS_RULE]); 4602 list_del(&fs_rule->com.list); 4603 spin_unlock_irq(mlx4_tlock(dev)); 4604 kfree(fs_rule); 4605 state = 0; 4606 break; 4607 4608 default: 4609 state = 0; 4610 } 4611 } 4612 } 4613 spin_lock_irq(mlx4_tlock(dev)); 4614 } 4615 spin_unlock_irq(mlx4_tlock(dev)); 4616 } 4617 4618 static void rem_slave_eqs(struct mlx4_dev *dev, int slave) 4619 { 4620 struct mlx4_priv *priv = mlx4_priv(dev); 4621 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 4622 struct list_head *eq_list = 4623 &tracker->slave_list[slave].res_list[RES_EQ]; 4624 struct res_eq *eq; 4625 struct res_eq *tmp; 4626 int err; 4627 int state; 4628 LIST_HEAD(tlist); 4629 int eqn; 4630 struct mlx4_cmd_mailbox *mailbox; 4631 4632 err = move_all_busy(dev, slave, RES_EQ); 4633 if (err) 4634 mlx4_warn(dev, "rem_slave_eqs: Could not move all eqs - too busy for slave %d\n", 4635 slave); 4636 4637 spin_lock_irq(mlx4_tlock(dev)); 4638 list_for_each_entry_safe(eq, tmp, eq_list, com.list) { 4639 spin_unlock_irq(mlx4_tlock(dev)); 4640 if (eq->com.owner == slave) { 4641 eqn = eq->com.res_id; 4642 state = eq->com.from_state; 4643 while (state != 0) { 4644 switch (state) { 4645 case RES_EQ_RESERVED: 4646 spin_lock_irq(mlx4_tlock(dev)); 4647 rb_erase(&eq->com.node, 4648 &tracker->res_tree[RES_EQ]); 4649 list_del(&eq->com.list); 4650 spin_unlock_irq(mlx4_tlock(dev)); 4651 kfree(eq); 4652 state = 0; 4653 break; 4654 4655 case RES_EQ_HW: 4656 mailbox = mlx4_alloc_cmd_mailbox(dev); 4657 if (IS_ERR(mailbox)) { 4658 cond_resched(); 4659 continue; 4660 } 4661 err = mlx4_cmd_box(dev, slave, 0, 4662 eqn & 0xff, 0, 4663 MLX4_CMD_HW2SW_EQ, 4664 MLX4_CMD_TIME_CLASS_A, 4665 MLX4_CMD_NATIVE); 4666 if (err) 4667 mlx4_dbg(dev, "rem_slave_eqs: failed to move slave %d eqs %d to SW ownership\n", 4668 slave, eqn); 4669 mlx4_free_cmd_mailbox(dev, mailbox); 4670 atomic_dec(&eq->mtt->ref_count); 4671 state = RES_EQ_RESERVED; 4672 break; 4673 4674 default: 4675 state = 0; 4676 } 4677 } 4678 } 4679 spin_lock_irq(mlx4_tlock(dev)); 4680 } 4681 spin_unlock_irq(mlx4_tlock(dev)); 4682 } 4683 4684 static void rem_slave_counters(struct mlx4_dev *dev, int slave) 4685 { 4686 struct mlx4_priv *priv = mlx4_priv(dev); 4687 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 4688 struct list_head *counter_list = 4689 &tracker->slave_list[slave].res_list[RES_COUNTER]; 4690 struct res_counter *counter; 4691 struct res_counter *tmp; 4692 int err; 4693 int index; 4694 4695 err = move_all_busy(dev, slave, RES_COUNTER); 4696 if (err) 4697 mlx4_warn(dev, "rem_slave_counters: Could not move all counters - too busy for slave %d\n", 4698 slave); 4699 4700 spin_lock_irq(mlx4_tlock(dev)); 4701 list_for_each_entry_safe(counter, tmp, counter_list, com.list) { 4702 if (counter->com.owner == slave) { 4703 index = counter->com.res_id; 4704 rb_erase(&counter->com.node, 4705 &tracker->res_tree[RES_COUNTER]); 4706 list_del(&counter->com.list); 4707 kfree(counter); 4708 __mlx4_counter_free(dev, index); 4709 mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0); 4710 } 4711 } 4712 spin_unlock_irq(mlx4_tlock(dev)); 4713 } 4714 4715 static void rem_slave_xrcdns(struct mlx4_dev *dev, int slave) 4716 { 4717 struct mlx4_priv *priv = mlx4_priv(dev); 4718 struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; 4719 struct list_head *xrcdn_list = 4720 &tracker->slave_list[slave].res_list[RES_XRCD]; 4721 struct res_xrcdn *xrcd; 4722 struct res_xrcdn *tmp; 4723 int err; 4724 int xrcdn; 4725 4726 err = move_all_busy(dev, slave, RES_XRCD); 4727 if (err) 4728 mlx4_warn(dev, "rem_slave_xrcdns: Could not move all xrcdns - too busy for slave %d\n", 4729 slave); 4730 4731 spin_lock_irq(mlx4_tlock(dev)); 4732 list_for_each_entry_safe(xrcd, tmp, xrcdn_list, com.list) { 4733 if (xrcd->com.owner == slave) { 4734 xrcdn = xrcd->com.res_id; 4735 rb_erase(&xrcd->com.node, &tracker->res_tree[RES_XRCD]); 4736 list_del(&xrcd->com.list); 4737 kfree(xrcd); 4738 __mlx4_xrcd_free(dev, xrcdn); 4739 } 4740 } 4741 spin_unlock_irq(mlx4_tlock(dev)); 4742 } 4743 4744 void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave) 4745 { 4746 struct mlx4_priv *priv = mlx4_priv(dev); 4747 mlx4_reset_roce_gids(dev, slave); 4748 mutex_lock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); 4749 rem_slave_vlans(dev, slave); 4750 rem_slave_macs(dev, slave); 4751 rem_slave_fs_rule(dev, slave); 4752 rem_slave_qps(dev, slave); 4753 rem_slave_srqs(dev, slave); 4754 rem_slave_cqs(dev, slave); 4755 rem_slave_mrs(dev, slave); 4756 rem_slave_eqs(dev, slave); 4757 rem_slave_mtts(dev, slave); 4758 rem_slave_counters(dev, slave); 4759 rem_slave_xrcdns(dev, slave); 4760 mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); 4761 } 4762 4763 void mlx4_vf_immed_vlan_work_handler(struct work_struct *_work) 4764 { 4765 struct mlx4_vf_immed_vlan_work *work = 4766 container_of(_work, struct mlx4_vf_immed_vlan_work, work); 4767 struct mlx4_cmd_mailbox *mailbox; 4768 struct mlx4_update_qp_context *upd_context; 4769 struct mlx4_dev *dev = &work->priv->dev; 4770 struct mlx4_resource_tracker *tracker = 4771 &work->priv->mfunc.master.res_tracker; 4772 struct list_head *qp_list = 4773 &tracker->slave_list[work->slave].res_list[RES_QP]; 4774 struct res_qp *qp; 4775 struct res_qp *tmp; 4776 u64 qp_path_mask_vlan_ctrl = 4777 ((1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_UNTAGGED) | 4778 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_1P) | 4779 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_TAGGED) | 4780 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_UNTAGGED) | 4781 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_1P) | 4782 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_TAGGED)); 4783 4784 u64 qp_path_mask = ((1ULL << MLX4_UPD_QP_PATH_MASK_VLAN_INDEX) | 4785 (1ULL << MLX4_UPD_QP_PATH_MASK_FVL) | 4786 (1ULL << MLX4_UPD_QP_PATH_MASK_CV) | 4787 (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_HIDE_CQE_VLAN) | 4788 (1ULL << MLX4_UPD_QP_PATH_MASK_FEUP) | 4789 (1ULL << MLX4_UPD_QP_PATH_MASK_FVL_RX) | 4790 (1ULL << MLX4_UPD_QP_PATH_MASK_SCHED_QUEUE)); 4791 4792 int err; 4793 int port, errors = 0; 4794 u8 vlan_control; 4795 4796 if (mlx4_is_slave(dev)) { 4797 mlx4_warn(dev, "Trying to update-qp in slave %d\n", 4798 work->slave); 4799 goto out; 4800 } 4801 4802 mailbox = mlx4_alloc_cmd_mailbox(dev); 4803 if (IS_ERR(mailbox)) 4804 goto out; 4805 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_LINK_DISABLE) /* block all */ 4806 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | 4807 MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED | 4808 MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED | 4809 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED | 4810 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED | 4811 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED; 4812 else if (!work->vlan_id) 4813 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | 4814 MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED; 4815 else 4816 vlan_control = MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | 4817 MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED | 4818 MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED; 4819 4820 upd_context = mailbox->buf; 4821 upd_context->qp_mask = cpu_to_be64(MLX4_UPD_QP_MASK_VSD); 4822 4823 spin_lock_irq(mlx4_tlock(dev)); 4824 list_for_each_entry_safe(qp, tmp, qp_list, com.list) { 4825 spin_unlock_irq(mlx4_tlock(dev)); 4826 if (qp->com.owner == work->slave) { 4827 if (qp->com.from_state != RES_QP_HW || 4828 !qp->sched_queue || /* no INIT2RTR trans yet */ 4829 mlx4_is_qp_reserved(dev, qp->local_qpn) || 4830 qp->qpc_flags & (1 << MLX4_RSS_QPC_FLAG_OFFSET)) { 4831 spin_lock_irq(mlx4_tlock(dev)); 4832 continue; 4833 } 4834 port = (qp->sched_queue >> 6 & 1) + 1; 4835 if (port != work->port) { 4836 spin_lock_irq(mlx4_tlock(dev)); 4837 continue; 4838 } 4839 if (MLX4_QP_ST_RC == ((qp->qpc_flags >> 16) & 0xff)) 4840 upd_context->primary_addr_path_mask = cpu_to_be64(qp_path_mask); 4841 else 4842 upd_context->primary_addr_path_mask = 4843 cpu_to_be64(qp_path_mask | qp_path_mask_vlan_ctrl); 4844 if (work->vlan_id == MLX4_VGT) { 4845 upd_context->qp_context.param3 = qp->param3; 4846 upd_context->qp_context.pri_path.vlan_control = qp->vlan_control; 4847 upd_context->qp_context.pri_path.fvl_rx = qp->fvl_rx; 4848 upd_context->qp_context.pri_path.vlan_index = qp->vlan_index; 4849 upd_context->qp_context.pri_path.fl = qp->pri_path_fl; 4850 upd_context->qp_context.pri_path.feup = qp->feup; 4851 upd_context->qp_context.pri_path.sched_queue = 4852 qp->sched_queue; 4853 } else { 4854 upd_context->qp_context.param3 = qp->param3 & ~cpu_to_be32(MLX4_STRIP_VLAN); 4855 upd_context->qp_context.pri_path.vlan_control = vlan_control; 4856 upd_context->qp_context.pri_path.vlan_index = work->vlan_ix; 4857 upd_context->qp_context.pri_path.fvl_rx = 4858 qp->fvl_rx | MLX4_FVL_RX_FORCE_ETH_VLAN; 4859 upd_context->qp_context.pri_path.fl = 4860 qp->pri_path_fl | MLX4_FL_CV | MLX4_FL_ETH_HIDE_CQE_VLAN; 4861 upd_context->qp_context.pri_path.feup = 4862 qp->feup | MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN; 4863 upd_context->qp_context.pri_path.sched_queue = 4864 qp->sched_queue & 0xC7; 4865 upd_context->qp_context.pri_path.sched_queue |= 4866 ((work->qos & 0x7) << 3); 4867 } 4868 4869 err = mlx4_cmd(dev, mailbox->dma, 4870 qp->local_qpn & 0xffffff, 4871 0, MLX4_CMD_UPDATE_QP, 4872 MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE); 4873 if (err) { 4874 mlx4_info(dev, "UPDATE_QP failed for slave %d, port %d, qpn %d (%d)\n", 4875 work->slave, port, qp->local_qpn, err); 4876 errors++; 4877 } 4878 } 4879 spin_lock_irq(mlx4_tlock(dev)); 4880 } 4881 spin_unlock_irq(mlx4_tlock(dev)); 4882 mlx4_free_cmd_mailbox(dev, mailbox); 4883 4884 if (errors) 4885 mlx4_err(dev, "%d UPDATE_QP failures for slave %d, port %d\n", 4886 errors, work->slave, work->port); 4887 4888 /* unregister previous vlan_id if needed and we had no errors 4889 * while updating the QPs 4890 */ 4891 if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN && !errors && 4892 NO_INDX != work->orig_vlan_ix) 4893 __mlx4_unregister_vlan(&work->priv->dev, work->port, 4894 work->orig_vlan_id); 4895 out: 4896 kfree(work); 4897 return; 4898 } 4899