Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 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> |
Axel Lin | e143a1a | 2011-12-25 23:35:34 +0000 | [diff] [blame] | 41 | #include <linux/slab.h> |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 42 | #include <linux/mlx4/cmd.h> |
| 43 | #include <linux/mlx4/qp.h> |
| 44 | |
| 45 | #include "mlx4.h" |
| 46 | #include "fw.h" |
| 47 | |
| 48 | #define MLX4_MAC_VALID (1ull << 63) |
| 49 | #define MLX4_MAC_MASK 0x7fffffffffffffffULL |
| 50 | #define ETH_ALEN 6 |
| 51 | |
| 52 | struct mac_res { |
| 53 | struct list_head list; |
| 54 | u64 mac; |
| 55 | u8 port; |
| 56 | }; |
| 57 | |
| 58 | struct res_common { |
| 59 | struct list_head list; |
| 60 | u32 res_id; |
| 61 | int owner; |
| 62 | int state; |
| 63 | int from_state; |
| 64 | int to_state; |
| 65 | int removing; |
| 66 | }; |
| 67 | |
| 68 | enum { |
| 69 | RES_ANY_BUSY = 1 |
| 70 | }; |
| 71 | |
| 72 | struct res_gid { |
| 73 | struct list_head list; |
| 74 | u8 gid[16]; |
| 75 | enum mlx4_protocol prot; |
| 76 | }; |
| 77 | |
| 78 | enum res_qp_states { |
| 79 | RES_QP_BUSY = RES_ANY_BUSY, |
| 80 | |
| 81 | /* QP number was allocated */ |
| 82 | RES_QP_RESERVED, |
| 83 | |
| 84 | /* ICM memory for QP context was mapped */ |
| 85 | RES_QP_MAPPED, |
| 86 | |
| 87 | /* QP is in hw ownership */ |
| 88 | RES_QP_HW |
| 89 | }; |
| 90 | |
| 91 | static inline const char *qp_states_str(enum res_qp_states state) |
| 92 | { |
| 93 | switch (state) { |
| 94 | case RES_QP_BUSY: return "RES_QP_BUSY"; |
| 95 | case RES_QP_RESERVED: return "RES_QP_RESERVED"; |
| 96 | case RES_QP_MAPPED: return "RES_QP_MAPPED"; |
| 97 | case RES_QP_HW: return "RES_QP_HW"; |
| 98 | default: return "Unknown"; |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | struct res_qp { |
| 103 | struct res_common com; |
| 104 | struct res_mtt *mtt; |
| 105 | struct res_cq *rcq; |
| 106 | struct res_cq *scq; |
| 107 | struct res_srq *srq; |
| 108 | struct list_head mcg_list; |
| 109 | spinlock_t mcg_spl; |
| 110 | int local_qpn; |
| 111 | }; |
| 112 | |
| 113 | enum res_mtt_states { |
| 114 | RES_MTT_BUSY = RES_ANY_BUSY, |
| 115 | RES_MTT_ALLOCATED, |
| 116 | }; |
| 117 | |
| 118 | static inline const char *mtt_states_str(enum res_mtt_states state) |
| 119 | { |
| 120 | switch (state) { |
| 121 | case RES_MTT_BUSY: return "RES_MTT_BUSY"; |
| 122 | case RES_MTT_ALLOCATED: return "RES_MTT_ALLOCATED"; |
| 123 | default: return "Unknown"; |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | struct res_mtt { |
| 128 | struct res_common com; |
| 129 | int order; |
| 130 | atomic_t ref_count; |
| 131 | }; |
| 132 | |
| 133 | enum res_mpt_states { |
| 134 | RES_MPT_BUSY = RES_ANY_BUSY, |
| 135 | RES_MPT_RESERVED, |
| 136 | RES_MPT_MAPPED, |
| 137 | RES_MPT_HW, |
| 138 | }; |
| 139 | |
| 140 | struct res_mpt { |
| 141 | struct res_common com; |
| 142 | struct res_mtt *mtt; |
| 143 | int key; |
| 144 | }; |
| 145 | |
| 146 | enum res_eq_states { |
| 147 | RES_EQ_BUSY = RES_ANY_BUSY, |
| 148 | RES_EQ_RESERVED, |
| 149 | RES_EQ_HW, |
| 150 | }; |
| 151 | |
| 152 | struct res_eq { |
| 153 | struct res_common com; |
| 154 | struct res_mtt *mtt; |
| 155 | }; |
| 156 | |
| 157 | enum res_cq_states { |
| 158 | RES_CQ_BUSY = RES_ANY_BUSY, |
| 159 | RES_CQ_ALLOCATED, |
| 160 | RES_CQ_HW, |
| 161 | }; |
| 162 | |
| 163 | struct res_cq { |
| 164 | struct res_common com; |
| 165 | struct res_mtt *mtt; |
| 166 | atomic_t ref_count; |
| 167 | }; |
| 168 | |
| 169 | enum res_srq_states { |
| 170 | RES_SRQ_BUSY = RES_ANY_BUSY, |
| 171 | RES_SRQ_ALLOCATED, |
| 172 | RES_SRQ_HW, |
| 173 | }; |
| 174 | |
| 175 | static inline const char *srq_states_str(enum res_srq_states state) |
| 176 | { |
| 177 | switch (state) { |
| 178 | case RES_SRQ_BUSY: return "RES_SRQ_BUSY"; |
| 179 | case RES_SRQ_ALLOCATED: return "RES_SRQ_ALLOCATED"; |
| 180 | case RES_SRQ_HW: return "RES_SRQ_HW"; |
| 181 | default: return "Unknown"; |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | struct res_srq { |
| 186 | struct res_common com; |
| 187 | struct res_mtt *mtt; |
| 188 | struct res_cq *cq; |
| 189 | atomic_t ref_count; |
| 190 | }; |
| 191 | |
| 192 | enum res_counter_states { |
| 193 | RES_COUNTER_BUSY = RES_ANY_BUSY, |
| 194 | RES_COUNTER_ALLOCATED, |
| 195 | }; |
| 196 | |
| 197 | static inline const char *counter_states_str(enum res_counter_states state) |
| 198 | { |
| 199 | switch (state) { |
| 200 | case RES_COUNTER_BUSY: return "RES_COUNTER_BUSY"; |
| 201 | case RES_COUNTER_ALLOCATED: return "RES_COUNTER_ALLOCATED"; |
| 202 | default: return "Unknown"; |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | struct res_counter { |
| 207 | struct res_common com; |
| 208 | int port; |
| 209 | }; |
| 210 | |
| 211 | /* For Debug uses */ |
| 212 | static const char *ResourceType(enum mlx4_resource rt) |
| 213 | { |
| 214 | switch (rt) { |
| 215 | case RES_QP: return "RES_QP"; |
| 216 | case RES_CQ: return "RES_CQ"; |
| 217 | case RES_SRQ: return "RES_SRQ"; |
| 218 | case RES_MPT: return "RES_MPT"; |
| 219 | case RES_MTT: return "RES_MTT"; |
| 220 | case RES_MAC: return "RES_MAC"; |
| 221 | case RES_EQ: return "RES_EQ"; |
| 222 | case RES_COUNTER: return "RES_COUNTER"; |
| 223 | default: return "Unknown resource type !!!"; |
| 224 | }; |
| 225 | } |
| 226 | |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 227 | int mlx4_init_resource_tracker(struct mlx4_dev *dev) |
| 228 | { |
| 229 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 230 | int i; |
| 231 | int t; |
| 232 | |
| 233 | priv->mfunc.master.res_tracker.slave_list = |
| 234 | kzalloc(dev->num_slaves * sizeof(struct slave_list), |
| 235 | GFP_KERNEL); |
| 236 | if (!priv->mfunc.master.res_tracker.slave_list) |
| 237 | return -ENOMEM; |
| 238 | |
| 239 | for (i = 0 ; i < dev->num_slaves; i++) { |
| 240 | for (t = 0; t < MLX4_NUM_OF_RESOURCE_TYPE; ++t) |
| 241 | INIT_LIST_HEAD(&priv->mfunc.master.res_tracker. |
| 242 | slave_list[i].res_list[t]); |
| 243 | mutex_init(&priv->mfunc.master.res_tracker.slave_list[i].mutex); |
| 244 | } |
| 245 | |
| 246 | mlx4_dbg(dev, "Started init_resource_tracker: %ld slaves\n", |
| 247 | dev->num_slaves); |
| 248 | for (i = 0 ; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) |
| 249 | INIT_RADIX_TREE(&priv->mfunc.master.res_tracker.res_tree[i], |
| 250 | GFP_ATOMIC|__GFP_NOWARN); |
| 251 | |
| 252 | spin_lock_init(&priv->mfunc.master.res_tracker.lock); |
| 253 | return 0 ; |
| 254 | } |
| 255 | |
| 256 | void mlx4_free_resource_tracker(struct mlx4_dev *dev) |
| 257 | { |
| 258 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 259 | int i; |
| 260 | |
| 261 | if (priv->mfunc.master.res_tracker.slave_list) { |
| 262 | for (i = 0 ; i < dev->num_slaves; i++) |
| 263 | mlx4_delete_all_resources_for_slave(dev, i); |
| 264 | |
| 265 | kfree(priv->mfunc.master.res_tracker.slave_list); |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | static void update_ud_gid(struct mlx4_dev *dev, |
| 270 | struct mlx4_qp_context *qp_ctx, u8 slave) |
| 271 | { |
| 272 | u32 ts = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff; |
| 273 | |
| 274 | if (MLX4_QP_ST_UD == ts) |
| 275 | qp_ctx->pri_path.mgid_index = 0x80 | slave; |
| 276 | |
| 277 | mlx4_dbg(dev, "slave %d, new gid index: 0x%x ", |
| 278 | slave, qp_ctx->pri_path.mgid_index); |
| 279 | } |
| 280 | |
| 281 | static int mpt_mask(struct mlx4_dev *dev) |
| 282 | { |
| 283 | return dev->caps.num_mpts - 1; |
| 284 | } |
| 285 | |
| 286 | static void *find_res(struct mlx4_dev *dev, int res_id, |
| 287 | enum mlx4_resource type) |
| 288 | { |
| 289 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 290 | |
| 291 | return radix_tree_lookup(&priv->mfunc.master.res_tracker.res_tree[type], |
| 292 | res_id); |
| 293 | } |
| 294 | |
| 295 | static int get_res(struct mlx4_dev *dev, int slave, int res_id, |
| 296 | enum mlx4_resource type, |
| 297 | void *res) |
| 298 | { |
| 299 | struct res_common *r; |
| 300 | int err = 0; |
| 301 | |
| 302 | spin_lock_irq(mlx4_tlock(dev)); |
| 303 | r = find_res(dev, res_id, type); |
| 304 | if (!r) { |
| 305 | err = -ENONET; |
| 306 | goto exit; |
| 307 | } |
| 308 | |
| 309 | if (r->state == RES_ANY_BUSY) { |
| 310 | err = -EBUSY; |
| 311 | goto exit; |
| 312 | } |
| 313 | |
| 314 | if (r->owner != slave) { |
| 315 | err = -EPERM; |
| 316 | goto exit; |
| 317 | } |
| 318 | |
| 319 | r->from_state = r->state; |
| 320 | r->state = RES_ANY_BUSY; |
| 321 | mlx4_dbg(dev, "res %s id 0x%x to busy\n", |
| 322 | ResourceType(type), r->res_id); |
| 323 | |
| 324 | if (res) |
| 325 | *((struct res_common **)res) = r; |
| 326 | |
| 327 | exit: |
| 328 | spin_unlock_irq(mlx4_tlock(dev)); |
| 329 | return err; |
| 330 | } |
| 331 | |
| 332 | int mlx4_get_slave_from_resource_id(struct mlx4_dev *dev, |
| 333 | enum mlx4_resource type, |
| 334 | int res_id, int *slave) |
| 335 | { |
| 336 | |
| 337 | struct res_common *r; |
| 338 | int err = -ENOENT; |
| 339 | int id = res_id; |
| 340 | |
| 341 | if (type == RES_QP) |
| 342 | id &= 0x7fffff; |
Yevgeny Petrilin | 996b054 | 2011-12-19 04:03:05 +0000 | [diff] [blame] | 343 | spin_lock(mlx4_tlock(dev)); |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 344 | |
| 345 | r = find_res(dev, id, type); |
| 346 | if (r) { |
| 347 | *slave = r->owner; |
| 348 | err = 0; |
| 349 | } |
Yevgeny Petrilin | 996b054 | 2011-12-19 04:03:05 +0000 | [diff] [blame] | 350 | spin_unlock(mlx4_tlock(dev)); |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 351 | |
| 352 | return err; |
| 353 | } |
| 354 | |
| 355 | static void put_res(struct mlx4_dev *dev, int slave, int res_id, |
| 356 | enum mlx4_resource type) |
| 357 | { |
| 358 | struct res_common *r; |
| 359 | |
| 360 | spin_lock_irq(mlx4_tlock(dev)); |
| 361 | r = find_res(dev, res_id, type); |
| 362 | if (r) |
| 363 | r->state = r->from_state; |
| 364 | spin_unlock_irq(mlx4_tlock(dev)); |
| 365 | } |
| 366 | |
| 367 | static struct res_common *alloc_qp_tr(int id) |
| 368 | { |
| 369 | struct res_qp *ret; |
| 370 | |
| 371 | ret = kzalloc(sizeof *ret, GFP_KERNEL); |
| 372 | if (!ret) |
| 373 | return NULL; |
| 374 | |
| 375 | ret->com.res_id = id; |
| 376 | ret->com.state = RES_QP_RESERVED; |
Eugenia Emantayev | 0ee9f1d | 2012-02-14 06:37:22 +0000 | [diff] [blame^] | 377 | ret->local_qpn = id; |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 378 | INIT_LIST_HEAD(&ret->mcg_list); |
| 379 | spin_lock_init(&ret->mcg_spl); |
| 380 | |
| 381 | return &ret->com; |
| 382 | } |
| 383 | |
| 384 | static struct res_common *alloc_mtt_tr(int id, int order) |
| 385 | { |
| 386 | struct res_mtt *ret; |
| 387 | |
| 388 | ret = kzalloc(sizeof *ret, GFP_KERNEL); |
| 389 | if (!ret) |
| 390 | return NULL; |
| 391 | |
| 392 | ret->com.res_id = id; |
| 393 | ret->order = order; |
| 394 | ret->com.state = RES_MTT_ALLOCATED; |
| 395 | atomic_set(&ret->ref_count, 0); |
| 396 | |
| 397 | return &ret->com; |
| 398 | } |
| 399 | |
| 400 | static struct res_common *alloc_mpt_tr(int id, int key) |
| 401 | { |
| 402 | struct res_mpt *ret; |
| 403 | |
| 404 | ret = kzalloc(sizeof *ret, GFP_KERNEL); |
| 405 | if (!ret) |
| 406 | return NULL; |
| 407 | |
| 408 | ret->com.res_id = id; |
| 409 | ret->com.state = RES_MPT_RESERVED; |
| 410 | ret->key = key; |
| 411 | |
| 412 | return &ret->com; |
| 413 | } |
| 414 | |
| 415 | static struct res_common *alloc_eq_tr(int id) |
| 416 | { |
| 417 | struct res_eq *ret; |
| 418 | |
| 419 | ret = kzalloc(sizeof *ret, GFP_KERNEL); |
| 420 | if (!ret) |
| 421 | return NULL; |
| 422 | |
| 423 | ret->com.res_id = id; |
| 424 | ret->com.state = RES_EQ_RESERVED; |
| 425 | |
| 426 | return &ret->com; |
| 427 | } |
| 428 | |
| 429 | static struct res_common *alloc_cq_tr(int id) |
| 430 | { |
| 431 | struct res_cq *ret; |
| 432 | |
| 433 | ret = kzalloc(sizeof *ret, GFP_KERNEL); |
| 434 | if (!ret) |
| 435 | return NULL; |
| 436 | |
| 437 | ret->com.res_id = id; |
| 438 | ret->com.state = RES_CQ_ALLOCATED; |
| 439 | atomic_set(&ret->ref_count, 0); |
| 440 | |
| 441 | return &ret->com; |
| 442 | } |
| 443 | |
| 444 | static struct res_common *alloc_srq_tr(int id) |
| 445 | { |
| 446 | struct res_srq *ret; |
| 447 | |
| 448 | ret = kzalloc(sizeof *ret, GFP_KERNEL); |
| 449 | if (!ret) |
| 450 | return NULL; |
| 451 | |
| 452 | ret->com.res_id = id; |
| 453 | ret->com.state = RES_SRQ_ALLOCATED; |
| 454 | atomic_set(&ret->ref_count, 0); |
| 455 | |
| 456 | return &ret->com; |
| 457 | } |
| 458 | |
| 459 | static struct res_common *alloc_counter_tr(int id) |
| 460 | { |
| 461 | struct res_counter *ret; |
| 462 | |
| 463 | ret = kzalloc(sizeof *ret, GFP_KERNEL); |
| 464 | if (!ret) |
| 465 | return NULL; |
| 466 | |
| 467 | ret->com.res_id = id; |
| 468 | ret->com.state = RES_COUNTER_ALLOCATED; |
| 469 | |
| 470 | return &ret->com; |
| 471 | } |
| 472 | |
| 473 | static struct res_common *alloc_tr(int id, enum mlx4_resource type, int slave, |
| 474 | int extra) |
| 475 | { |
| 476 | struct res_common *ret; |
| 477 | |
| 478 | switch (type) { |
| 479 | case RES_QP: |
| 480 | ret = alloc_qp_tr(id); |
| 481 | break; |
| 482 | case RES_MPT: |
| 483 | ret = alloc_mpt_tr(id, extra); |
| 484 | break; |
| 485 | case RES_MTT: |
| 486 | ret = alloc_mtt_tr(id, extra); |
| 487 | break; |
| 488 | case RES_EQ: |
| 489 | ret = alloc_eq_tr(id); |
| 490 | break; |
| 491 | case RES_CQ: |
| 492 | ret = alloc_cq_tr(id); |
| 493 | break; |
| 494 | case RES_SRQ: |
| 495 | ret = alloc_srq_tr(id); |
| 496 | break; |
| 497 | case RES_MAC: |
| 498 | printk(KERN_ERR "implementation missing\n"); |
| 499 | return NULL; |
| 500 | case RES_COUNTER: |
| 501 | ret = alloc_counter_tr(id); |
| 502 | break; |
| 503 | |
| 504 | default: |
| 505 | return NULL; |
| 506 | } |
| 507 | if (ret) |
| 508 | ret->owner = slave; |
| 509 | |
| 510 | return ret; |
| 511 | } |
| 512 | |
| 513 | static int add_res_range(struct mlx4_dev *dev, int slave, int base, int count, |
| 514 | enum mlx4_resource type, int extra) |
| 515 | { |
| 516 | int i; |
| 517 | int err; |
| 518 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 519 | struct res_common **res_arr; |
| 520 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 521 | struct radix_tree_root *root = &tracker->res_tree[type]; |
| 522 | |
| 523 | res_arr = kzalloc(count * sizeof *res_arr, GFP_KERNEL); |
| 524 | if (!res_arr) |
| 525 | return -ENOMEM; |
| 526 | |
| 527 | for (i = 0; i < count; ++i) { |
| 528 | res_arr[i] = alloc_tr(base + i, type, slave, extra); |
| 529 | if (!res_arr[i]) { |
| 530 | for (--i; i >= 0; --i) |
| 531 | kfree(res_arr[i]); |
| 532 | |
| 533 | kfree(res_arr); |
| 534 | return -ENOMEM; |
| 535 | } |
| 536 | } |
| 537 | |
| 538 | spin_lock_irq(mlx4_tlock(dev)); |
| 539 | for (i = 0; i < count; ++i) { |
| 540 | if (find_res(dev, base + i, type)) { |
| 541 | err = -EEXIST; |
| 542 | goto undo; |
| 543 | } |
| 544 | err = radix_tree_insert(root, base + i, res_arr[i]); |
| 545 | if (err) |
| 546 | goto undo; |
| 547 | list_add_tail(&res_arr[i]->list, |
| 548 | &tracker->slave_list[slave].res_list[type]); |
| 549 | } |
| 550 | spin_unlock_irq(mlx4_tlock(dev)); |
| 551 | kfree(res_arr); |
| 552 | |
| 553 | return 0; |
| 554 | |
| 555 | undo: |
| 556 | for (--i; i >= base; --i) |
| 557 | radix_tree_delete(&tracker->res_tree[type], i); |
| 558 | |
| 559 | spin_unlock_irq(mlx4_tlock(dev)); |
| 560 | |
| 561 | for (i = 0; i < count; ++i) |
| 562 | kfree(res_arr[i]); |
| 563 | |
| 564 | kfree(res_arr); |
| 565 | |
| 566 | return err; |
| 567 | } |
| 568 | |
| 569 | static int remove_qp_ok(struct res_qp *res) |
| 570 | { |
| 571 | if (res->com.state == RES_QP_BUSY) |
| 572 | return -EBUSY; |
| 573 | else if (res->com.state != RES_QP_RESERVED) |
| 574 | return -EPERM; |
| 575 | |
| 576 | return 0; |
| 577 | } |
| 578 | |
| 579 | static int remove_mtt_ok(struct res_mtt *res, int order) |
| 580 | { |
| 581 | if (res->com.state == RES_MTT_BUSY || |
| 582 | atomic_read(&res->ref_count)) { |
| 583 | printk(KERN_DEBUG "%s-%d: state %s, ref_count %d\n", |
| 584 | __func__, __LINE__, |
| 585 | mtt_states_str(res->com.state), |
| 586 | atomic_read(&res->ref_count)); |
| 587 | return -EBUSY; |
| 588 | } else if (res->com.state != RES_MTT_ALLOCATED) |
| 589 | return -EPERM; |
| 590 | else if (res->order != order) |
| 591 | return -EINVAL; |
| 592 | |
| 593 | return 0; |
| 594 | } |
| 595 | |
| 596 | static int remove_mpt_ok(struct res_mpt *res) |
| 597 | { |
| 598 | if (res->com.state == RES_MPT_BUSY) |
| 599 | return -EBUSY; |
| 600 | else if (res->com.state != RES_MPT_RESERVED) |
| 601 | return -EPERM; |
| 602 | |
| 603 | return 0; |
| 604 | } |
| 605 | |
| 606 | static int remove_eq_ok(struct res_eq *res) |
| 607 | { |
| 608 | if (res->com.state == RES_MPT_BUSY) |
| 609 | return -EBUSY; |
| 610 | else if (res->com.state != RES_MPT_RESERVED) |
| 611 | return -EPERM; |
| 612 | |
| 613 | return 0; |
| 614 | } |
| 615 | |
| 616 | static int remove_counter_ok(struct res_counter *res) |
| 617 | { |
| 618 | if (res->com.state == RES_COUNTER_BUSY) |
| 619 | return -EBUSY; |
| 620 | else if (res->com.state != RES_COUNTER_ALLOCATED) |
| 621 | return -EPERM; |
| 622 | |
| 623 | return 0; |
| 624 | } |
| 625 | |
| 626 | static int remove_cq_ok(struct res_cq *res) |
| 627 | { |
| 628 | if (res->com.state == RES_CQ_BUSY) |
| 629 | return -EBUSY; |
| 630 | else if (res->com.state != RES_CQ_ALLOCATED) |
| 631 | return -EPERM; |
| 632 | |
| 633 | return 0; |
| 634 | } |
| 635 | |
| 636 | static int remove_srq_ok(struct res_srq *res) |
| 637 | { |
| 638 | if (res->com.state == RES_SRQ_BUSY) |
| 639 | return -EBUSY; |
| 640 | else if (res->com.state != RES_SRQ_ALLOCATED) |
| 641 | return -EPERM; |
| 642 | |
| 643 | return 0; |
| 644 | } |
| 645 | |
| 646 | static int remove_ok(struct res_common *res, enum mlx4_resource type, int extra) |
| 647 | { |
| 648 | switch (type) { |
| 649 | case RES_QP: |
| 650 | return remove_qp_ok((struct res_qp *)res); |
| 651 | case RES_CQ: |
| 652 | return remove_cq_ok((struct res_cq *)res); |
| 653 | case RES_SRQ: |
| 654 | return remove_srq_ok((struct res_srq *)res); |
| 655 | case RES_MPT: |
| 656 | return remove_mpt_ok((struct res_mpt *)res); |
| 657 | case RES_MTT: |
| 658 | return remove_mtt_ok((struct res_mtt *)res, extra); |
| 659 | case RES_MAC: |
| 660 | return -ENOSYS; |
| 661 | case RES_EQ: |
| 662 | return remove_eq_ok((struct res_eq *)res); |
| 663 | case RES_COUNTER: |
| 664 | return remove_counter_ok((struct res_counter *)res); |
| 665 | default: |
| 666 | return -EINVAL; |
| 667 | } |
| 668 | } |
| 669 | |
| 670 | static int rem_res_range(struct mlx4_dev *dev, int slave, int base, int count, |
| 671 | enum mlx4_resource type, int extra) |
| 672 | { |
| 673 | int i; |
| 674 | int err; |
| 675 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 676 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 677 | struct res_common *r; |
| 678 | |
| 679 | spin_lock_irq(mlx4_tlock(dev)); |
| 680 | for (i = base; i < base + count; ++i) { |
| 681 | r = radix_tree_lookup(&tracker->res_tree[type], i); |
| 682 | if (!r) { |
| 683 | err = -ENOENT; |
| 684 | goto out; |
| 685 | } |
| 686 | if (r->owner != slave) { |
| 687 | err = -EPERM; |
| 688 | goto out; |
| 689 | } |
| 690 | err = remove_ok(r, type, extra); |
| 691 | if (err) |
| 692 | goto out; |
| 693 | } |
| 694 | |
| 695 | for (i = base; i < base + count; ++i) { |
| 696 | r = radix_tree_lookup(&tracker->res_tree[type], i); |
| 697 | radix_tree_delete(&tracker->res_tree[type], i); |
| 698 | list_del(&r->list); |
| 699 | kfree(r); |
| 700 | } |
| 701 | err = 0; |
| 702 | |
| 703 | out: |
| 704 | spin_unlock_irq(mlx4_tlock(dev)); |
| 705 | |
| 706 | return err; |
| 707 | } |
| 708 | |
| 709 | static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn, |
| 710 | enum res_qp_states state, struct res_qp **qp, |
| 711 | int alloc) |
| 712 | { |
| 713 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 714 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 715 | struct res_qp *r; |
| 716 | int err = 0; |
| 717 | |
| 718 | spin_lock_irq(mlx4_tlock(dev)); |
| 719 | r = radix_tree_lookup(&tracker->res_tree[RES_QP], qpn); |
| 720 | if (!r) |
| 721 | err = -ENOENT; |
| 722 | else if (r->com.owner != slave) |
| 723 | err = -EPERM; |
| 724 | else { |
| 725 | switch (state) { |
| 726 | case RES_QP_BUSY: |
| 727 | mlx4_dbg(dev, "%s: failed RES_QP, 0x%x\n", |
| 728 | __func__, r->com.res_id); |
| 729 | err = -EBUSY; |
| 730 | break; |
| 731 | |
| 732 | case RES_QP_RESERVED: |
| 733 | if (r->com.state == RES_QP_MAPPED && !alloc) |
| 734 | break; |
| 735 | |
| 736 | mlx4_dbg(dev, "failed RES_QP, 0x%x\n", r->com.res_id); |
| 737 | err = -EINVAL; |
| 738 | break; |
| 739 | |
| 740 | case RES_QP_MAPPED: |
| 741 | if ((r->com.state == RES_QP_RESERVED && alloc) || |
| 742 | r->com.state == RES_QP_HW) |
| 743 | break; |
| 744 | else { |
| 745 | mlx4_dbg(dev, "failed RES_QP, 0x%x\n", |
| 746 | r->com.res_id); |
| 747 | err = -EINVAL; |
| 748 | } |
| 749 | |
| 750 | break; |
| 751 | |
| 752 | case RES_QP_HW: |
| 753 | if (r->com.state != RES_QP_MAPPED) |
| 754 | err = -EINVAL; |
| 755 | break; |
| 756 | default: |
| 757 | err = -EINVAL; |
| 758 | } |
| 759 | |
| 760 | if (!err) { |
| 761 | r->com.from_state = r->com.state; |
| 762 | r->com.to_state = state; |
| 763 | r->com.state = RES_QP_BUSY; |
| 764 | if (qp) |
| 765 | *qp = (struct res_qp *)r; |
| 766 | } |
| 767 | } |
| 768 | |
| 769 | spin_unlock_irq(mlx4_tlock(dev)); |
| 770 | |
| 771 | return err; |
| 772 | } |
| 773 | |
| 774 | static int mr_res_start_move_to(struct mlx4_dev *dev, int slave, int index, |
| 775 | enum res_mpt_states state, struct res_mpt **mpt) |
| 776 | { |
| 777 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 778 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 779 | struct res_mpt *r; |
| 780 | int err = 0; |
| 781 | |
| 782 | spin_lock_irq(mlx4_tlock(dev)); |
| 783 | r = radix_tree_lookup(&tracker->res_tree[RES_MPT], index); |
| 784 | if (!r) |
| 785 | err = -ENOENT; |
| 786 | else if (r->com.owner != slave) |
| 787 | err = -EPERM; |
| 788 | else { |
| 789 | switch (state) { |
| 790 | case RES_MPT_BUSY: |
| 791 | err = -EINVAL; |
| 792 | break; |
| 793 | |
| 794 | case RES_MPT_RESERVED: |
| 795 | if (r->com.state != RES_MPT_MAPPED) |
| 796 | err = -EINVAL; |
| 797 | break; |
| 798 | |
| 799 | case RES_MPT_MAPPED: |
| 800 | if (r->com.state != RES_MPT_RESERVED && |
| 801 | r->com.state != RES_MPT_HW) |
| 802 | err = -EINVAL; |
| 803 | break; |
| 804 | |
| 805 | case RES_MPT_HW: |
| 806 | if (r->com.state != RES_MPT_MAPPED) |
| 807 | err = -EINVAL; |
| 808 | break; |
| 809 | default: |
| 810 | err = -EINVAL; |
| 811 | } |
| 812 | |
| 813 | if (!err) { |
| 814 | r->com.from_state = r->com.state; |
| 815 | r->com.to_state = state; |
| 816 | r->com.state = RES_MPT_BUSY; |
| 817 | if (mpt) |
| 818 | *mpt = (struct res_mpt *)r; |
| 819 | } |
| 820 | } |
| 821 | |
| 822 | spin_unlock_irq(mlx4_tlock(dev)); |
| 823 | |
| 824 | return err; |
| 825 | } |
| 826 | |
| 827 | static int eq_res_start_move_to(struct mlx4_dev *dev, int slave, int index, |
| 828 | enum res_eq_states state, struct res_eq **eq) |
| 829 | { |
| 830 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 831 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 832 | struct res_eq *r; |
| 833 | int err = 0; |
| 834 | |
| 835 | spin_lock_irq(mlx4_tlock(dev)); |
| 836 | r = radix_tree_lookup(&tracker->res_tree[RES_EQ], index); |
| 837 | if (!r) |
| 838 | err = -ENOENT; |
| 839 | else if (r->com.owner != slave) |
| 840 | err = -EPERM; |
| 841 | else { |
| 842 | switch (state) { |
| 843 | case RES_EQ_BUSY: |
| 844 | err = -EINVAL; |
| 845 | break; |
| 846 | |
| 847 | case RES_EQ_RESERVED: |
| 848 | if (r->com.state != RES_EQ_HW) |
| 849 | err = -EINVAL; |
| 850 | break; |
| 851 | |
| 852 | case RES_EQ_HW: |
| 853 | if (r->com.state != RES_EQ_RESERVED) |
| 854 | err = -EINVAL; |
| 855 | break; |
| 856 | |
| 857 | default: |
| 858 | err = -EINVAL; |
| 859 | } |
| 860 | |
| 861 | if (!err) { |
| 862 | r->com.from_state = r->com.state; |
| 863 | r->com.to_state = state; |
| 864 | r->com.state = RES_EQ_BUSY; |
| 865 | if (eq) |
| 866 | *eq = r; |
| 867 | } |
| 868 | } |
| 869 | |
| 870 | spin_unlock_irq(mlx4_tlock(dev)); |
| 871 | |
| 872 | return err; |
| 873 | } |
| 874 | |
| 875 | static int cq_res_start_move_to(struct mlx4_dev *dev, int slave, int cqn, |
| 876 | enum res_cq_states state, struct res_cq **cq) |
| 877 | { |
| 878 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 879 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 880 | struct res_cq *r; |
| 881 | int err; |
| 882 | |
| 883 | spin_lock_irq(mlx4_tlock(dev)); |
| 884 | r = radix_tree_lookup(&tracker->res_tree[RES_CQ], cqn); |
| 885 | if (!r) |
| 886 | err = -ENOENT; |
| 887 | else if (r->com.owner != slave) |
| 888 | err = -EPERM; |
| 889 | else { |
| 890 | switch (state) { |
| 891 | case RES_CQ_BUSY: |
| 892 | err = -EBUSY; |
| 893 | break; |
| 894 | |
| 895 | case RES_CQ_ALLOCATED: |
| 896 | if (r->com.state != RES_CQ_HW) |
| 897 | err = -EINVAL; |
| 898 | else if (atomic_read(&r->ref_count)) |
| 899 | err = -EBUSY; |
| 900 | else |
| 901 | err = 0; |
| 902 | break; |
| 903 | |
| 904 | case RES_CQ_HW: |
| 905 | if (r->com.state != RES_CQ_ALLOCATED) |
| 906 | err = -EINVAL; |
| 907 | else |
| 908 | err = 0; |
| 909 | break; |
| 910 | |
| 911 | default: |
| 912 | err = -EINVAL; |
| 913 | } |
| 914 | |
| 915 | if (!err) { |
| 916 | r->com.from_state = r->com.state; |
| 917 | r->com.to_state = state; |
| 918 | r->com.state = RES_CQ_BUSY; |
| 919 | if (cq) |
| 920 | *cq = r; |
| 921 | } |
| 922 | } |
| 923 | |
| 924 | spin_unlock_irq(mlx4_tlock(dev)); |
| 925 | |
| 926 | return err; |
| 927 | } |
| 928 | |
| 929 | static int srq_res_start_move_to(struct mlx4_dev *dev, int slave, int index, |
| 930 | enum res_cq_states state, struct res_srq **srq) |
| 931 | { |
| 932 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 933 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 934 | struct res_srq *r; |
| 935 | int err = 0; |
| 936 | |
| 937 | spin_lock_irq(mlx4_tlock(dev)); |
| 938 | r = radix_tree_lookup(&tracker->res_tree[RES_SRQ], index); |
| 939 | if (!r) |
| 940 | err = -ENOENT; |
| 941 | else if (r->com.owner != slave) |
| 942 | err = -EPERM; |
| 943 | else { |
| 944 | switch (state) { |
| 945 | case RES_SRQ_BUSY: |
| 946 | err = -EINVAL; |
| 947 | break; |
| 948 | |
| 949 | case RES_SRQ_ALLOCATED: |
| 950 | if (r->com.state != RES_SRQ_HW) |
| 951 | err = -EINVAL; |
| 952 | else if (atomic_read(&r->ref_count)) |
| 953 | err = -EBUSY; |
| 954 | break; |
| 955 | |
| 956 | case RES_SRQ_HW: |
| 957 | if (r->com.state != RES_SRQ_ALLOCATED) |
| 958 | err = -EINVAL; |
| 959 | break; |
| 960 | |
| 961 | default: |
| 962 | err = -EINVAL; |
| 963 | } |
| 964 | |
| 965 | if (!err) { |
| 966 | r->com.from_state = r->com.state; |
| 967 | r->com.to_state = state; |
| 968 | r->com.state = RES_SRQ_BUSY; |
| 969 | if (srq) |
| 970 | *srq = r; |
| 971 | } |
| 972 | } |
| 973 | |
| 974 | spin_unlock_irq(mlx4_tlock(dev)); |
| 975 | |
| 976 | return err; |
| 977 | } |
| 978 | |
| 979 | static void res_abort_move(struct mlx4_dev *dev, int slave, |
| 980 | enum mlx4_resource type, int id) |
| 981 | { |
| 982 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 983 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 984 | struct res_common *r; |
| 985 | |
| 986 | spin_lock_irq(mlx4_tlock(dev)); |
| 987 | r = radix_tree_lookup(&tracker->res_tree[type], id); |
| 988 | if (r && (r->owner == slave)) |
| 989 | r->state = r->from_state; |
| 990 | spin_unlock_irq(mlx4_tlock(dev)); |
| 991 | } |
| 992 | |
| 993 | static void res_end_move(struct mlx4_dev *dev, int slave, |
| 994 | enum mlx4_resource type, int id) |
| 995 | { |
| 996 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 997 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 998 | struct res_common *r; |
| 999 | |
| 1000 | spin_lock_irq(mlx4_tlock(dev)); |
| 1001 | r = radix_tree_lookup(&tracker->res_tree[type], id); |
| 1002 | if (r && (r->owner == slave)) |
| 1003 | r->state = r->to_state; |
| 1004 | spin_unlock_irq(mlx4_tlock(dev)); |
| 1005 | } |
| 1006 | |
| 1007 | static int valid_reserved(struct mlx4_dev *dev, int slave, int qpn) |
| 1008 | { |
| 1009 | return mlx4_is_qp_reserved(dev, qpn); |
| 1010 | } |
| 1011 | |
| 1012 | static int qp_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| 1013 | u64 in_param, u64 *out_param) |
| 1014 | { |
| 1015 | int err; |
| 1016 | int count; |
| 1017 | int align; |
| 1018 | int base; |
| 1019 | int qpn; |
| 1020 | |
| 1021 | switch (op) { |
| 1022 | case RES_OP_RESERVE: |
| 1023 | count = get_param_l(&in_param); |
| 1024 | align = get_param_h(&in_param); |
| 1025 | err = __mlx4_qp_reserve_range(dev, count, align, &base); |
| 1026 | if (err) |
| 1027 | return err; |
| 1028 | |
| 1029 | err = add_res_range(dev, slave, base, count, RES_QP, 0); |
| 1030 | if (err) { |
| 1031 | __mlx4_qp_release_range(dev, base, count); |
| 1032 | return err; |
| 1033 | } |
| 1034 | set_param_l(out_param, base); |
| 1035 | break; |
| 1036 | case RES_OP_MAP_ICM: |
| 1037 | qpn = get_param_l(&in_param) & 0x7fffff; |
| 1038 | if (valid_reserved(dev, slave, qpn)) { |
| 1039 | err = add_res_range(dev, slave, qpn, 1, RES_QP, 0); |
| 1040 | if (err) |
| 1041 | return err; |
| 1042 | } |
| 1043 | |
| 1044 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, |
| 1045 | NULL, 1); |
| 1046 | if (err) |
| 1047 | return err; |
| 1048 | |
| 1049 | if (!valid_reserved(dev, slave, qpn)) { |
| 1050 | err = __mlx4_qp_alloc_icm(dev, qpn); |
| 1051 | if (err) { |
| 1052 | res_abort_move(dev, slave, RES_QP, qpn); |
| 1053 | return err; |
| 1054 | } |
| 1055 | } |
| 1056 | |
| 1057 | res_end_move(dev, slave, RES_QP, qpn); |
| 1058 | break; |
| 1059 | |
| 1060 | default: |
| 1061 | err = -EINVAL; |
| 1062 | break; |
| 1063 | } |
| 1064 | return err; |
| 1065 | } |
| 1066 | |
| 1067 | static int mtt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| 1068 | u64 in_param, u64 *out_param) |
| 1069 | { |
| 1070 | int err = -EINVAL; |
| 1071 | int base; |
| 1072 | int order; |
| 1073 | |
| 1074 | if (op != RES_OP_RESERVE_AND_MAP) |
| 1075 | return err; |
| 1076 | |
| 1077 | order = get_param_l(&in_param); |
| 1078 | base = __mlx4_alloc_mtt_range(dev, order); |
| 1079 | if (base == -1) |
| 1080 | return -ENOMEM; |
| 1081 | |
| 1082 | err = add_res_range(dev, slave, base, 1, RES_MTT, order); |
| 1083 | if (err) |
| 1084 | __mlx4_free_mtt_range(dev, base, order); |
| 1085 | else |
| 1086 | set_param_l(out_param, base); |
| 1087 | |
| 1088 | return err; |
| 1089 | } |
| 1090 | |
| 1091 | static int mpt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| 1092 | u64 in_param, u64 *out_param) |
| 1093 | { |
| 1094 | int err = -EINVAL; |
| 1095 | int index; |
| 1096 | int id; |
| 1097 | struct res_mpt *mpt; |
| 1098 | |
| 1099 | switch (op) { |
| 1100 | case RES_OP_RESERVE: |
| 1101 | index = __mlx4_mr_reserve(dev); |
| 1102 | if (index == -1) |
| 1103 | break; |
| 1104 | id = index & mpt_mask(dev); |
| 1105 | |
| 1106 | err = add_res_range(dev, slave, id, 1, RES_MPT, index); |
| 1107 | if (err) { |
| 1108 | __mlx4_mr_release(dev, index); |
| 1109 | break; |
| 1110 | } |
| 1111 | set_param_l(out_param, index); |
| 1112 | break; |
| 1113 | case RES_OP_MAP_ICM: |
| 1114 | index = get_param_l(&in_param); |
| 1115 | id = index & mpt_mask(dev); |
| 1116 | err = mr_res_start_move_to(dev, slave, id, |
| 1117 | RES_MPT_MAPPED, &mpt); |
| 1118 | if (err) |
| 1119 | return err; |
| 1120 | |
| 1121 | err = __mlx4_mr_alloc_icm(dev, mpt->key); |
| 1122 | if (err) { |
| 1123 | res_abort_move(dev, slave, RES_MPT, id); |
| 1124 | return err; |
| 1125 | } |
| 1126 | |
| 1127 | res_end_move(dev, slave, RES_MPT, id); |
| 1128 | break; |
| 1129 | } |
| 1130 | return err; |
| 1131 | } |
| 1132 | |
| 1133 | static int cq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| 1134 | u64 in_param, u64 *out_param) |
| 1135 | { |
| 1136 | int cqn; |
| 1137 | int err; |
| 1138 | |
| 1139 | switch (op) { |
| 1140 | case RES_OP_RESERVE_AND_MAP: |
| 1141 | err = __mlx4_cq_alloc_icm(dev, &cqn); |
| 1142 | if (err) |
| 1143 | break; |
| 1144 | |
| 1145 | err = add_res_range(dev, slave, cqn, 1, RES_CQ, 0); |
| 1146 | if (err) { |
| 1147 | __mlx4_cq_free_icm(dev, cqn); |
| 1148 | break; |
| 1149 | } |
| 1150 | |
| 1151 | set_param_l(out_param, cqn); |
| 1152 | break; |
| 1153 | |
| 1154 | default: |
| 1155 | err = -EINVAL; |
| 1156 | } |
| 1157 | |
| 1158 | return err; |
| 1159 | } |
| 1160 | |
| 1161 | static int srq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| 1162 | u64 in_param, u64 *out_param) |
| 1163 | { |
| 1164 | int srqn; |
| 1165 | int err; |
| 1166 | |
| 1167 | switch (op) { |
| 1168 | case RES_OP_RESERVE_AND_MAP: |
| 1169 | err = __mlx4_srq_alloc_icm(dev, &srqn); |
| 1170 | if (err) |
| 1171 | break; |
| 1172 | |
| 1173 | err = add_res_range(dev, slave, srqn, 1, RES_SRQ, 0); |
| 1174 | if (err) { |
| 1175 | __mlx4_srq_free_icm(dev, srqn); |
| 1176 | break; |
| 1177 | } |
| 1178 | |
| 1179 | set_param_l(out_param, srqn); |
| 1180 | break; |
| 1181 | |
| 1182 | default: |
| 1183 | err = -EINVAL; |
| 1184 | } |
| 1185 | |
| 1186 | return err; |
| 1187 | } |
| 1188 | |
| 1189 | static int mac_add_to_slave(struct mlx4_dev *dev, int slave, u64 mac, int port) |
| 1190 | { |
| 1191 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 1192 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 1193 | struct mac_res *res; |
| 1194 | |
| 1195 | res = kzalloc(sizeof *res, GFP_KERNEL); |
| 1196 | if (!res) |
| 1197 | return -ENOMEM; |
| 1198 | res->mac = mac; |
| 1199 | res->port = (u8) port; |
| 1200 | list_add_tail(&res->list, |
| 1201 | &tracker->slave_list[slave].res_list[RES_MAC]); |
| 1202 | return 0; |
| 1203 | } |
| 1204 | |
| 1205 | static void mac_del_from_slave(struct mlx4_dev *dev, int slave, u64 mac, |
| 1206 | int port) |
| 1207 | { |
| 1208 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 1209 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 1210 | struct list_head *mac_list = |
| 1211 | &tracker->slave_list[slave].res_list[RES_MAC]; |
| 1212 | struct mac_res *res, *tmp; |
| 1213 | |
| 1214 | list_for_each_entry_safe(res, tmp, mac_list, list) { |
| 1215 | if (res->mac == mac && res->port == (u8) port) { |
| 1216 | list_del(&res->list); |
| 1217 | kfree(res); |
| 1218 | break; |
| 1219 | } |
| 1220 | } |
| 1221 | } |
| 1222 | |
| 1223 | static void rem_slave_macs(struct mlx4_dev *dev, int slave) |
| 1224 | { |
| 1225 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 1226 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 1227 | struct list_head *mac_list = |
| 1228 | &tracker->slave_list[slave].res_list[RES_MAC]; |
| 1229 | struct mac_res *res, *tmp; |
| 1230 | |
| 1231 | list_for_each_entry_safe(res, tmp, mac_list, list) { |
| 1232 | list_del(&res->list); |
| 1233 | __mlx4_unregister_mac(dev, res->port, res->mac); |
| 1234 | kfree(res); |
| 1235 | } |
| 1236 | } |
| 1237 | |
| 1238 | static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| 1239 | u64 in_param, u64 *out_param) |
| 1240 | { |
| 1241 | int err = -EINVAL; |
| 1242 | int port; |
| 1243 | u64 mac; |
| 1244 | |
| 1245 | if (op != RES_OP_RESERVE_AND_MAP) |
| 1246 | return err; |
| 1247 | |
| 1248 | port = get_param_l(out_param); |
| 1249 | mac = in_param; |
| 1250 | |
| 1251 | err = __mlx4_register_mac(dev, port, mac); |
| 1252 | if (err >= 0) { |
| 1253 | set_param_l(out_param, err); |
| 1254 | err = 0; |
| 1255 | } |
| 1256 | |
| 1257 | if (!err) { |
| 1258 | err = mac_add_to_slave(dev, slave, mac, port); |
| 1259 | if (err) |
| 1260 | __mlx4_unregister_mac(dev, port, mac); |
| 1261 | } |
| 1262 | return err; |
| 1263 | } |
| 1264 | |
Eugenia Emantayev | ffe455a | 2011-12-13 04:16:21 +0000 | [diff] [blame] | 1265 | static int vlan_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| 1266 | u64 in_param, u64 *out_param) |
| 1267 | { |
| 1268 | return 0; |
| 1269 | } |
| 1270 | |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1271 | int mlx4_ALLOC_RES_wrapper(struct mlx4_dev *dev, int slave, |
| 1272 | struct mlx4_vhcr *vhcr, |
| 1273 | struct mlx4_cmd_mailbox *inbox, |
| 1274 | struct mlx4_cmd_mailbox *outbox, |
| 1275 | struct mlx4_cmd_info *cmd) |
| 1276 | { |
| 1277 | int err; |
| 1278 | int alop = vhcr->op_modifier; |
| 1279 | |
| 1280 | switch (vhcr->in_modifier) { |
| 1281 | case RES_QP: |
| 1282 | err = qp_alloc_res(dev, slave, vhcr->op_modifier, alop, |
| 1283 | vhcr->in_param, &vhcr->out_param); |
| 1284 | break; |
| 1285 | |
| 1286 | case RES_MTT: |
| 1287 | err = mtt_alloc_res(dev, slave, vhcr->op_modifier, alop, |
| 1288 | vhcr->in_param, &vhcr->out_param); |
| 1289 | break; |
| 1290 | |
| 1291 | case RES_MPT: |
| 1292 | err = mpt_alloc_res(dev, slave, vhcr->op_modifier, alop, |
| 1293 | vhcr->in_param, &vhcr->out_param); |
| 1294 | break; |
| 1295 | |
| 1296 | case RES_CQ: |
| 1297 | err = cq_alloc_res(dev, slave, vhcr->op_modifier, alop, |
| 1298 | vhcr->in_param, &vhcr->out_param); |
| 1299 | break; |
| 1300 | |
| 1301 | case RES_SRQ: |
| 1302 | err = srq_alloc_res(dev, slave, vhcr->op_modifier, alop, |
| 1303 | vhcr->in_param, &vhcr->out_param); |
| 1304 | break; |
| 1305 | |
| 1306 | case RES_MAC: |
| 1307 | err = mac_alloc_res(dev, slave, vhcr->op_modifier, alop, |
| 1308 | vhcr->in_param, &vhcr->out_param); |
| 1309 | break; |
| 1310 | |
Eugenia Emantayev | ffe455a | 2011-12-13 04:16:21 +0000 | [diff] [blame] | 1311 | case RES_VLAN: |
| 1312 | err = vlan_alloc_res(dev, slave, vhcr->op_modifier, alop, |
| 1313 | vhcr->in_param, &vhcr->out_param); |
| 1314 | break; |
| 1315 | |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1316 | default: |
| 1317 | err = -EINVAL; |
| 1318 | break; |
| 1319 | } |
| 1320 | |
| 1321 | return err; |
| 1322 | } |
| 1323 | |
| 1324 | static int qp_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| 1325 | u64 in_param) |
| 1326 | { |
| 1327 | int err; |
| 1328 | int count; |
| 1329 | int base; |
| 1330 | int qpn; |
| 1331 | |
| 1332 | switch (op) { |
| 1333 | case RES_OP_RESERVE: |
| 1334 | base = get_param_l(&in_param) & 0x7fffff; |
| 1335 | count = get_param_h(&in_param); |
| 1336 | err = rem_res_range(dev, slave, base, count, RES_QP, 0); |
| 1337 | if (err) |
| 1338 | break; |
| 1339 | __mlx4_qp_release_range(dev, base, count); |
| 1340 | break; |
| 1341 | case RES_OP_MAP_ICM: |
| 1342 | qpn = get_param_l(&in_param) & 0x7fffff; |
| 1343 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_RESERVED, |
| 1344 | NULL, 0); |
| 1345 | if (err) |
| 1346 | return err; |
| 1347 | |
| 1348 | if (!valid_reserved(dev, slave, qpn)) |
| 1349 | __mlx4_qp_free_icm(dev, qpn); |
| 1350 | |
| 1351 | res_end_move(dev, slave, RES_QP, qpn); |
| 1352 | |
| 1353 | if (valid_reserved(dev, slave, qpn)) |
| 1354 | err = rem_res_range(dev, slave, qpn, 1, RES_QP, 0); |
| 1355 | break; |
| 1356 | default: |
| 1357 | err = -EINVAL; |
| 1358 | break; |
| 1359 | } |
| 1360 | return err; |
| 1361 | } |
| 1362 | |
| 1363 | static int mtt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| 1364 | u64 in_param, u64 *out_param) |
| 1365 | { |
| 1366 | int err = -EINVAL; |
| 1367 | int base; |
| 1368 | int order; |
| 1369 | |
| 1370 | if (op != RES_OP_RESERVE_AND_MAP) |
| 1371 | return err; |
| 1372 | |
| 1373 | base = get_param_l(&in_param); |
| 1374 | order = get_param_h(&in_param); |
| 1375 | err = rem_res_range(dev, slave, base, 1, RES_MTT, order); |
| 1376 | if (!err) |
| 1377 | __mlx4_free_mtt_range(dev, base, order); |
| 1378 | return err; |
| 1379 | } |
| 1380 | |
| 1381 | static int mpt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| 1382 | u64 in_param) |
| 1383 | { |
| 1384 | int err = -EINVAL; |
| 1385 | int index; |
| 1386 | int id; |
| 1387 | struct res_mpt *mpt; |
| 1388 | |
| 1389 | switch (op) { |
| 1390 | case RES_OP_RESERVE: |
| 1391 | index = get_param_l(&in_param); |
| 1392 | id = index & mpt_mask(dev); |
| 1393 | err = get_res(dev, slave, id, RES_MPT, &mpt); |
| 1394 | if (err) |
| 1395 | break; |
| 1396 | index = mpt->key; |
| 1397 | put_res(dev, slave, id, RES_MPT); |
| 1398 | |
| 1399 | err = rem_res_range(dev, slave, id, 1, RES_MPT, 0); |
| 1400 | if (err) |
| 1401 | break; |
| 1402 | __mlx4_mr_release(dev, index); |
| 1403 | break; |
| 1404 | case RES_OP_MAP_ICM: |
| 1405 | index = get_param_l(&in_param); |
| 1406 | id = index & mpt_mask(dev); |
| 1407 | err = mr_res_start_move_to(dev, slave, id, |
| 1408 | RES_MPT_RESERVED, &mpt); |
| 1409 | if (err) |
| 1410 | return err; |
| 1411 | |
| 1412 | __mlx4_mr_free_icm(dev, mpt->key); |
| 1413 | res_end_move(dev, slave, RES_MPT, id); |
| 1414 | return err; |
| 1415 | break; |
| 1416 | default: |
| 1417 | err = -EINVAL; |
| 1418 | break; |
| 1419 | } |
| 1420 | return err; |
| 1421 | } |
| 1422 | |
| 1423 | static int cq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| 1424 | u64 in_param, u64 *out_param) |
| 1425 | { |
| 1426 | int cqn; |
| 1427 | int err; |
| 1428 | |
| 1429 | switch (op) { |
| 1430 | case RES_OP_RESERVE_AND_MAP: |
| 1431 | cqn = get_param_l(&in_param); |
| 1432 | err = rem_res_range(dev, slave, cqn, 1, RES_CQ, 0); |
| 1433 | if (err) |
| 1434 | break; |
| 1435 | |
| 1436 | __mlx4_cq_free_icm(dev, cqn); |
| 1437 | break; |
| 1438 | |
| 1439 | default: |
| 1440 | err = -EINVAL; |
| 1441 | break; |
| 1442 | } |
| 1443 | |
| 1444 | return err; |
| 1445 | } |
| 1446 | |
| 1447 | static int srq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| 1448 | u64 in_param, u64 *out_param) |
| 1449 | { |
| 1450 | int srqn; |
| 1451 | int err; |
| 1452 | |
| 1453 | switch (op) { |
| 1454 | case RES_OP_RESERVE_AND_MAP: |
| 1455 | srqn = get_param_l(&in_param); |
| 1456 | err = rem_res_range(dev, slave, srqn, 1, RES_SRQ, 0); |
| 1457 | if (err) |
| 1458 | break; |
| 1459 | |
| 1460 | __mlx4_srq_free_icm(dev, srqn); |
| 1461 | break; |
| 1462 | |
| 1463 | default: |
| 1464 | err = -EINVAL; |
| 1465 | break; |
| 1466 | } |
| 1467 | |
| 1468 | return err; |
| 1469 | } |
| 1470 | |
| 1471 | static int mac_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| 1472 | u64 in_param, u64 *out_param) |
| 1473 | { |
| 1474 | int port; |
| 1475 | int err = 0; |
| 1476 | |
| 1477 | switch (op) { |
| 1478 | case RES_OP_RESERVE_AND_MAP: |
| 1479 | port = get_param_l(out_param); |
| 1480 | mac_del_from_slave(dev, slave, in_param, port); |
| 1481 | __mlx4_unregister_mac(dev, port, in_param); |
| 1482 | break; |
| 1483 | default: |
| 1484 | err = -EINVAL; |
| 1485 | break; |
| 1486 | } |
| 1487 | |
| 1488 | return err; |
| 1489 | |
| 1490 | } |
| 1491 | |
Eugenia Emantayev | ffe455a | 2011-12-13 04:16:21 +0000 | [diff] [blame] | 1492 | static int vlan_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| 1493 | u64 in_param, u64 *out_param) |
| 1494 | { |
| 1495 | return 0; |
| 1496 | } |
| 1497 | |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1498 | int mlx4_FREE_RES_wrapper(struct mlx4_dev *dev, int slave, |
| 1499 | struct mlx4_vhcr *vhcr, |
| 1500 | struct mlx4_cmd_mailbox *inbox, |
| 1501 | struct mlx4_cmd_mailbox *outbox, |
| 1502 | struct mlx4_cmd_info *cmd) |
| 1503 | { |
| 1504 | int err = -EINVAL; |
| 1505 | int alop = vhcr->op_modifier; |
| 1506 | |
| 1507 | switch (vhcr->in_modifier) { |
| 1508 | case RES_QP: |
| 1509 | err = qp_free_res(dev, slave, vhcr->op_modifier, alop, |
| 1510 | vhcr->in_param); |
| 1511 | break; |
| 1512 | |
| 1513 | case RES_MTT: |
| 1514 | err = mtt_free_res(dev, slave, vhcr->op_modifier, alop, |
| 1515 | vhcr->in_param, &vhcr->out_param); |
| 1516 | break; |
| 1517 | |
| 1518 | case RES_MPT: |
| 1519 | err = mpt_free_res(dev, slave, vhcr->op_modifier, alop, |
| 1520 | vhcr->in_param); |
| 1521 | break; |
| 1522 | |
| 1523 | case RES_CQ: |
| 1524 | err = cq_free_res(dev, slave, vhcr->op_modifier, alop, |
| 1525 | vhcr->in_param, &vhcr->out_param); |
| 1526 | break; |
| 1527 | |
| 1528 | case RES_SRQ: |
| 1529 | err = srq_free_res(dev, slave, vhcr->op_modifier, alop, |
| 1530 | vhcr->in_param, &vhcr->out_param); |
| 1531 | break; |
| 1532 | |
| 1533 | case RES_MAC: |
| 1534 | err = mac_free_res(dev, slave, vhcr->op_modifier, alop, |
| 1535 | vhcr->in_param, &vhcr->out_param); |
| 1536 | break; |
| 1537 | |
Eugenia Emantayev | ffe455a | 2011-12-13 04:16:21 +0000 | [diff] [blame] | 1538 | case RES_VLAN: |
| 1539 | err = vlan_free_res(dev, slave, vhcr->op_modifier, alop, |
| 1540 | vhcr->in_param, &vhcr->out_param); |
| 1541 | break; |
| 1542 | |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1543 | default: |
| 1544 | break; |
| 1545 | } |
| 1546 | return err; |
| 1547 | } |
| 1548 | |
| 1549 | /* ugly but other choices are uglier */ |
| 1550 | static int mr_phys_mpt(struct mlx4_mpt_entry *mpt) |
| 1551 | { |
| 1552 | return (be32_to_cpu(mpt->flags) >> 9) & 1; |
| 1553 | } |
| 1554 | |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1555 | static int mr_get_mtt_addr(struct mlx4_mpt_entry *mpt) |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1556 | { |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1557 | return (int)be64_to_cpu(mpt->mtt_addr) & 0xfffffff8; |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1558 | } |
| 1559 | |
| 1560 | static int mr_get_mtt_size(struct mlx4_mpt_entry *mpt) |
| 1561 | { |
| 1562 | return be32_to_cpu(mpt->mtt_sz); |
| 1563 | } |
| 1564 | |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1565 | static int qp_get_mtt_addr(struct mlx4_qp_context *qpc) |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1566 | { |
| 1567 | return be32_to_cpu(qpc->mtt_base_addr_l) & 0xfffffff8; |
| 1568 | } |
| 1569 | |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1570 | static int srq_get_mtt_addr(struct mlx4_srq_context *srqc) |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1571 | { |
| 1572 | return be32_to_cpu(srqc->mtt_base_addr_l) & 0xfffffff8; |
| 1573 | } |
| 1574 | |
| 1575 | static int qp_get_mtt_size(struct mlx4_qp_context *qpc) |
| 1576 | { |
| 1577 | int page_shift = (qpc->log_page_size & 0x3f) + 12; |
| 1578 | int log_sq_size = (qpc->sq_size_stride >> 3) & 0xf; |
| 1579 | int log_sq_sride = qpc->sq_size_stride & 7; |
| 1580 | int log_rq_size = (qpc->rq_size_stride >> 3) & 0xf; |
| 1581 | int log_rq_stride = qpc->rq_size_stride & 7; |
| 1582 | int srq = (be32_to_cpu(qpc->srqn) >> 24) & 1; |
| 1583 | int rss = (be32_to_cpu(qpc->flags) >> 13) & 1; |
| 1584 | int xrc = (be32_to_cpu(qpc->local_qpn) >> 23) & 1; |
| 1585 | int sq_size; |
| 1586 | int rq_size; |
| 1587 | int total_pages; |
| 1588 | int total_mem; |
| 1589 | int page_offset = (be32_to_cpu(qpc->params2) >> 6) & 0x3f; |
| 1590 | |
| 1591 | sq_size = 1 << (log_sq_size + log_sq_sride + 4); |
| 1592 | rq_size = (srq|rss|xrc) ? 0 : (1 << (log_rq_size + log_rq_stride + 4)); |
| 1593 | total_mem = sq_size + rq_size; |
| 1594 | total_pages = |
| 1595 | roundup_pow_of_two((total_mem + (page_offset << 6)) >> |
| 1596 | page_shift); |
| 1597 | |
| 1598 | return total_pages; |
| 1599 | } |
| 1600 | |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1601 | static int check_mtt_range(struct mlx4_dev *dev, int slave, int start, |
| 1602 | int size, struct res_mtt *mtt) |
| 1603 | { |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1604 | int res_start = mtt->com.res_id; |
| 1605 | int res_size = (1 << mtt->order); |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1606 | |
| 1607 | if (start < res_start || start + size > res_start + res_size) |
| 1608 | return -EPERM; |
| 1609 | return 0; |
| 1610 | } |
| 1611 | |
| 1612 | int mlx4_SW2HW_MPT_wrapper(struct mlx4_dev *dev, int slave, |
| 1613 | struct mlx4_vhcr *vhcr, |
| 1614 | struct mlx4_cmd_mailbox *inbox, |
| 1615 | struct mlx4_cmd_mailbox *outbox, |
| 1616 | struct mlx4_cmd_info *cmd) |
| 1617 | { |
| 1618 | int err; |
| 1619 | int index = vhcr->in_modifier; |
| 1620 | struct res_mtt *mtt; |
| 1621 | struct res_mpt *mpt; |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1622 | int mtt_base = mr_get_mtt_addr(inbox->buf) / dev->caps.mtt_entry_sz; |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1623 | int phys; |
| 1624 | int id; |
| 1625 | |
| 1626 | id = index & mpt_mask(dev); |
| 1627 | err = mr_res_start_move_to(dev, slave, id, RES_MPT_HW, &mpt); |
| 1628 | if (err) |
| 1629 | return err; |
| 1630 | |
| 1631 | phys = mr_phys_mpt(inbox->buf); |
| 1632 | if (!phys) { |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1633 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1634 | if (err) |
| 1635 | goto ex_abort; |
| 1636 | |
| 1637 | err = check_mtt_range(dev, slave, mtt_base, |
| 1638 | mr_get_mtt_size(inbox->buf), mtt); |
| 1639 | if (err) |
| 1640 | goto ex_put; |
| 1641 | |
| 1642 | mpt->mtt = mtt; |
| 1643 | } |
| 1644 | |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1645 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 1646 | if (err) |
| 1647 | goto ex_put; |
| 1648 | |
| 1649 | if (!phys) { |
| 1650 | atomic_inc(&mtt->ref_count); |
| 1651 | put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| 1652 | } |
| 1653 | |
| 1654 | res_end_move(dev, slave, RES_MPT, id); |
| 1655 | return 0; |
| 1656 | |
| 1657 | ex_put: |
| 1658 | if (!phys) |
| 1659 | put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| 1660 | ex_abort: |
| 1661 | res_abort_move(dev, slave, RES_MPT, id); |
| 1662 | |
| 1663 | return err; |
| 1664 | } |
| 1665 | |
| 1666 | int mlx4_HW2SW_MPT_wrapper(struct mlx4_dev *dev, int slave, |
| 1667 | struct mlx4_vhcr *vhcr, |
| 1668 | struct mlx4_cmd_mailbox *inbox, |
| 1669 | struct mlx4_cmd_mailbox *outbox, |
| 1670 | struct mlx4_cmd_info *cmd) |
| 1671 | { |
| 1672 | int err; |
| 1673 | int index = vhcr->in_modifier; |
| 1674 | struct res_mpt *mpt; |
| 1675 | int id; |
| 1676 | |
| 1677 | id = index & mpt_mask(dev); |
| 1678 | err = mr_res_start_move_to(dev, slave, id, RES_MPT_MAPPED, &mpt); |
| 1679 | if (err) |
| 1680 | return err; |
| 1681 | |
| 1682 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 1683 | if (err) |
| 1684 | goto ex_abort; |
| 1685 | |
| 1686 | if (mpt->mtt) |
| 1687 | atomic_dec(&mpt->mtt->ref_count); |
| 1688 | |
| 1689 | res_end_move(dev, slave, RES_MPT, id); |
| 1690 | return 0; |
| 1691 | |
| 1692 | ex_abort: |
| 1693 | res_abort_move(dev, slave, RES_MPT, id); |
| 1694 | |
| 1695 | return err; |
| 1696 | } |
| 1697 | |
| 1698 | int mlx4_QUERY_MPT_wrapper(struct mlx4_dev *dev, int slave, |
| 1699 | struct mlx4_vhcr *vhcr, |
| 1700 | struct mlx4_cmd_mailbox *inbox, |
| 1701 | struct mlx4_cmd_mailbox *outbox, |
| 1702 | struct mlx4_cmd_info *cmd) |
| 1703 | { |
| 1704 | int err; |
| 1705 | int index = vhcr->in_modifier; |
| 1706 | struct res_mpt *mpt; |
| 1707 | int id; |
| 1708 | |
| 1709 | id = index & mpt_mask(dev); |
| 1710 | err = get_res(dev, slave, id, RES_MPT, &mpt); |
| 1711 | if (err) |
| 1712 | return err; |
| 1713 | |
| 1714 | if (mpt->com.from_state != RES_MPT_HW) { |
| 1715 | err = -EBUSY; |
| 1716 | goto out; |
| 1717 | } |
| 1718 | |
| 1719 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 1720 | |
| 1721 | out: |
| 1722 | put_res(dev, slave, id, RES_MPT); |
| 1723 | return err; |
| 1724 | } |
| 1725 | |
| 1726 | static int qp_get_rcqn(struct mlx4_qp_context *qpc) |
| 1727 | { |
| 1728 | return be32_to_cpu(qpc->cqn_recv) & 0xffffff; |
| 1729 | } |
| 1730 | |
| 1731 | static int qp_get_scqn(struct mlx4_qp_context *qpc) |
| 1732 | { |
| 1733 | return be32_to_cpu(qpc->cqn_send) & 0xffffff; |
| 1734 | } |
| 1735 | |
| 1736 | static u32 qp_get_srqn(struct mlx4_qp_context *qpc) |
| 1737 | { |
| 1738 | return be32_to_cpu(qpc->srqn) & 0x1ffffff; |
| 1739 | } |
| 1740 | |
| 1741 | int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave, |
| 1742 | struct mlx4_vhcr *vhcr, |
| 1743 | struct mlx4_cmd_mailbox *inbox, |
| 1744 | struct mlx4_cmd_mailbox *outbox, |
| 1745 | struct mlx4_cmd_info *cmd) |
| 1746 | { |
| 1747 | int err; |
| 1748 | int qpn = vhcr->in_modifier & 0x7fffff; |
| 1749 | struct res_mtt *mtt; |
| 1750 | struct res_qp *qp; |
| 1751 | struct mlx4_qp_context *qpc = inbox->buf + 8; |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1752 | int mtt_base = qp_get_mtt_addr(qpc) / dev->caps.mtt_entry_sz; |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1753 | int mtt_size = qp_get_mtt_size(qpc); |
| 1754 | struct res_cq *rcq; |
| 1755 | struct res_cq *scq; |
| 1756 | int rcqn = qp_get_rcqn(qpc); |
| 1757 | int scqn = qp_get_scqn(qpc); |
| 1758 | u32 srqn = qp_get_srqn(qpc) & 0xffffff; |
| 1759 | int use_srq = (qp_get_srqn(qpc) >> 24) & 1; |
| 1760 | struct res_srq *srq; |
| 1761 | int local_qpn = be32_to_cpu(qpc->local_qpn) & 0xffffff; |
| 1762 | |
| 1763 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_HW, &qp, 0); |
| 1764 | if (err) |
| 1765 | return err; |
| 1766 | qp->local_qpn = local_qpn; |
| 1767 | |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1768 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1769 | if (err) |
| 1770 | goto ex_abort; |
| 1771 | |
| 1772 | err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt); |
| 1773 | if (err) |
| 1774 | goto ex_put_mtt; |
| 1775 | |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1776 | err = get_res(dev, slave, rcqn, RES_CQ, &rcq); |
| 1777 | if (err) |
| 1778 | goto ex_put_mtt; |
| 1779 | |
| 1780 | if (scqn != rcqn) { |
| 1781 | err = get_res(dev, slave, scqn, RES_CQ, &scq); |
| 1782 | if (err) |
| 1783 | goto ex_put_rcq; |
| 1784 | } else |
| 1785 | scq = rcq; |
| 1786 | |
| 1787 | if (use_srq) { |
| 1788 | err = get_res(dev, slave, srqn, RES_SRQ, &srq); |
| 1789 | if (err) |
| 1790 | goto ex_put_scq; |
| 1791 | } |
| 1792 | |
| 1793 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 1794 | if (err) |
| 1795 | goto ex_put_srq; |
| 1796 | atomic_inc(&mtt->ref_count); |
| 1797 | qp->mtt = mtt; |
| 1798 | atomic_inc(&rcq->ref_count); |
| 1799 | qp->rcq = rcq; |
| 1800 | atomic_inc(&scq->ref_count); |
| 1801 | qp->scq = scq; |
| 1802 | |
| 1803 | if (scqn != rcqn) |
| 1804 | put_res(dev, slave, scqn, RES_CQ); |
| 1805 | |
| 1806 | if (use_srq) { |
| 1807 | atomic_inc(&srq->ref_count); |
| 1808 | put_res(dev, slave, srqn, RES_SRQ); |
| 1809 | qp->srq = srq; |
| 1810 | } |
| 1811 | put_res(dev, slave, rcqn, RES_CQ); |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1812 | put_res(dev, slave, mtt_base, RES_MTT); |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1813 | res_end_move(dev, slave, RES_QP, qpn); |
| 1814 | |
| 1815 | return 0; |
| 1816 | |
| 1817 | ex_put_srq: |
| 1818 | if (use_srq) |
| 1819 | put_res(dev, slave, srqn, RES_SRQ); |
| 1820 | ex_put_scq: |
| 1821 | if (scqn != rcqn) |
| 1822 | put_res(dev, slave, scqn, RES_CQ); |
| 1823 | ex_put_rcq: |
| 1824 | put_res(dev, slave, rcqn, RES_CQ); |
| 1825 | ex_put_mtt: |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1826 | put_res(dev, slave, mtt_base, RES_MTT); |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1827 | ex_abort: |
| 1828 | res_abort_move(dev, slave, RES_QP, qpn); |
| 1829 | |
| 1830 | return err; |
| 1831 | } |
| 1832 | |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1833 | static int eq_get_mtt_addr(struct mlx4_eq_context *eqc) |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1834 | { |
| 1835 | return be32_to_cpu(eqc->mtt_base_addr_l) & 0xfffffff8; |
| 1836 | } |
| 1837 | |
| 1838 | static int eq_get_mtt_size(struct mlx4_eq_context *eqc) |
| 1839 | { |
| 1840 | int log_eq_size = eqc->log_eq_size & 0x1f; |
| 1841 | int page_shift = (eqc->log_page_size & 0x3f) + 12; |
| 1842 | |
| 1843 | if (log_eq_size + 5 < page_shift) |
| 1844 | return 1; |
| 1845 | |
| 1846 | return 1 << (log_eq_size + 5 - page_shift); |
| 1847 | } |
| 1848 | |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1849 | static int cq_get_mtt_addr(struct mlx4_cq_context *cqc) |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1850 | { |
| 1851 | return be32_to_cpu(cqc->mtt_base_addr_l) & 0xfffffff8; |
| 1852 | } |
| 1853 | |
| 1854 | static int cq_get_mtt_size(struct mlx4_cq_context *cqc) |
| 1855 | { |
| 1856 | int log_cq_size = (be32_to_cpu(cqc->logsize_usrpage) >> 24) & 0x1f; |
| 1857 | int page_shift = (cqc->log_page_size & 0x3f) + 12; |
| 1858 | |
| 1859 | if (log_cq_size + 5 < page_shift) |
| 1860 | return 1; |
| 1861 | |
| 1862 | return 1 << (log_cq_size + 5 - page_shift); |
| 1863 | } |
| 1864 | |
| 1865 | int mlx4_SW2HW_EQ_wrapper(struct mlx4_dev *dev, int slave, |
| 1866 | struct mlx4_vhcr *vhcr, |
| 1867 | struct mlx4_cmd_mailbox *inbox, |
| 1868 | struct mlx4_cmd_mailbox *outbox, |
| 1869 | struct mlx4_cmd_info *cmd) |
| 1870 | { |
| 1871 | int err; |
| 1872 | int eqn = vhcr->in_modifier; |
| 1873 | int res_id = (slave << 8) | eqn; |
| 1874 | struct mlx4_eq_context *eqc = inbox->buf; |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1875 | int mtt_base = eq_get_mtt_addr(eqc) / dev->caps.mtt_entry_sz; |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1876 | int mtt_size = eq_get_mtt_size(eqc); |
| 1877 | struct res_eq *eq; |
| 1878 | struct res_mtt *mtt; |
| 1879 | |
| 1880 | err = add_res_range(dev, slave, res_id, 1, RES_EQ, 0); |
| 1881 | if (err) |
| 1882 | return err; |
| 1883 | err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_HW, &eq); |
| 1884 | if (err) |
| 1885 | goto out_add; |
| 1886 | |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1887 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1888 | if (err) |
| 1889 | goto out_move; |
| 1890 | |
| 1891 | err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt); |
| 1892 | if (err) |
| 1893 | goto out_put; |
| 1894 | |
| 1895 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 1896 | if (err) |
| 1897 | goto out_put; |
| 1898 | |
| 1899 | atomic_inc(&mtt->ref_count); |
| 1900 | eq->mtt = mtt; |
| 1901 | put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| 1902 | res_end_move(dev, slave, RES_EQ, res_id); |
| 1903 | return 0; |
| 1904 | |
| 1905 | out_put: |
| 1906 | put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| 1907 | out_move: |
| 1908 | res_abort_move(dev, slave, RES_EQ, res_id); |
| 1909 | out_add: |
| 1910 | rem_res_range(dev, slave, res_id, 1, RES_EQ, 0); |
| 1911 | return err; |
| 1912 | } |
| 1913 | |
| 1914 | static int get_containing_mtt(struct mlx4_dev *dev, int slave, int start, |
| 1915 | int len, struct res_mtt **res) |
| 1916 | { |
| 1917 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 1918 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 1919 | struct res_mtt *mtt; |
| 1920 | int err = -EINVAL; |
| 1921 | |
| 1922 | spin_lock_irq(mlx4_tlock(dev)); |
| 1923 | list_for_each_entry(mtt, &tracker->slave_list[slave].res_list[RES_MTT], |
| 1924 | com.list) { |
| 1925 | if (!check_mtt_range(dev, slave, start, len, mtt)) { |
| 1926 | *res = mtt; |
| 1927 | mtt->com.from_state = mtt->com.state; |
| 1928 | mtt->com.state = RES_MTT_BUSY; |
| 1929 | err = 0; |
| 1930 | break; |
| 1931 | } |
| 1932 | } |
| 1933 | spin_unlock_irq(mlx4_tlock(dev)); |
| 1934 | |
| 1935 | return err; |
| 1936 | } |
| 1937 | |
| 1938 | int mlx4_WRITE_MTT_wrapper(struct mlx4_dev *dev, int slave, |
| 1939 | struct mlx4_vhcr *vhcr, |
| 1940 | struct mlx4_cmd_mailbox *inbox, |
| 1941 | struct mlx4_cmd_mailbox *outbox, |
| 1942 | struct mlx4_cmd_info *cmd) |
| 1943 | { |
| 1944 | struct mlx4_mtt mtt; |
| 1945 | __be64 *page_list = inbox->buf; |
| 1946 | u64 *pg_list = (u64 *)page_list; |
| 1947 | int i; |
| 1948 | struct res_mtt *rmtt = NULL; |
| 1949 | int start = be64_to_cpu(page_list[0]); |
| 1950 | int npages = vhcr->in_modifier; |
| 1951 | int err; |
| 1952 | |
| 1953 | err = get_containing_mtt(dev, slave, start, npages, &rmtt); |
| 1954 | if (err) |
| 1955 | return err; |
| 1956 | |
| 1957 | /* Call the SW implementation of write_mtt: |
| 1958 | * - Prepare a dummy mtt struct |
| 1959 | * - Translate inbox contents to simple addresses in host endianess */ |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 1960 | mtt.offset = 0; /* TBD this is broken but I don't handle it since |
| 1961 | we don't really use it */ |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 1962 | mtt.order = 0; |
| 1963 | mtt.page_shift = 0; |
| 1964 | for (i = 0; i < npages; ++i) |
| 1965 | pg_list[i + 2] = (be64_to_cpu(page_list[i + 2]) & ~1ULL); |
| 1966 | |
| 1967 | err = __mlx4_write_mtt(dev, &mtt, be64_to_cpu(page_list[0]), npages, |
| 1968 | ((u64 *)page_list + 2)); |
| 1969 | |
| 1970 | if (rmtt) |
| 1971 | put_res(dev, slave, rmtt->com.res_id, RES_MTT); |
| 1972 | |
| 1973 | return err; |
| 1974 | } |
| 1975 | |
| 1976 | int mlx4_HW2SW_EQ_wrapper(struct mlx4_dev *dev, int slave, |
| 1977 | struct mlx4_vhcr *vhcr, |
| 1978 | struct mlx4_cmd_mailbox *inbox, |
| 1979 | struct mlx4_cmd_mailbox *outbox, |
| 1980 | struct mlx4_cmd_info *cmd) |
| 1981 | { |
| 1982 | int eqn = vhcr->in_modifier; |
| 1983 | int res_id = eqn | (slave << 8); |
| 1984 | struct res_eq *eq; |
| 1985 | int err; |
| 1986 | |
| 1987 | err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_RESERVED, &eq); |
| 1988 | if (err) |
| 1989 | return err; |
| 1990 | |
| 1991 | err = get_res(dev, slave, eq->mtt->com.res_id, RES_MTT, NULL); |
| 1992 | if (err) |
| 1993 | goto ex_abort; |
| 1994 | |
| 1995 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 1996 | if (err) |
| 1997 | goto ex_put; |
| 1998 | |
| 1999 | atomic_dec(&eq->mtt->ref_count); |
| 2000 | put_res(dev, slave, eq->mtt->com.res_id, RES_MTT); |
| 2001 | res_end_move(dev, slave, RES_EQ, res_id); |
| 2002 | rem_res_range(dev, slave, res_id, 1, RES_EQ, 0); |
| 2003 | |
| 2004 | return 0; |
| 2005 | |
| 2006 | ex_put: |
| 2007 | put_res(dev, slave, eq->mtt->com.res_id, RES_MTT); |
| 2008 | ex_abort: |
| 2009 | res_abort_move(dev, slave, RES_EQ, res_id); |
| 2010 | |
| 2011 | return err; |
| 2012 | } |
| 2013 | |
| 2014 | int mlx4_GEN_EQE(struct mlx4_dev *dev, int slave, struct mlx4_eqe *eqe) |
| 2015 | { |
| 2016 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 2017 | struct mlx4_slave_event_eq_info *event_eq; |
| 2018 | struct mlx4_cmd_mailbox *mailbox; |
| 2019 | u32 in_modifier = 0; |
| 2020 | int err; |
| 2021 | int res_id; |
| 2022 | struct res_eq *req; |
| 2023 | |
| 2024 | if (!priv->mfunc.master.slave_state) |
| 2025 | return -EINVAL; |
| 2026 | |
Marcel Apfelbaum | 803143f | 2012-01-19 09:45:46 +0000 | [diff] [blame] | 2027 | event_eq = &priv->mfunc.master.slave_state[slave].event_eq[eqe->type]; |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 2028 | |
| 2029 | /* Create the event only if the slave is registered */ |
Marcel Apfelbaum | 803143f | 2012-01-19 09:45:46 +0000 | [diff] [blame] | 2030 | if (event_eq->eqn < 0) |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 2031 | return 0; |
| 2032 | |
| 2033 | mutex_lock(&priv->mfunc.master.gen_eqe_mutex[slave]); |
| 2034 | res_id = (slave << 8) | event_eq->eqn; |
| 2035 | err = get_res(dev, slave, res_id, RES_EQ, &req); |
| 2036 | if (err) |
| 2037 | goto unlock; |
| 2038 | |
| 2039 | if (req->com.from_state != RES_EQ_HW) { |
| 2040 | err = -EINVAL; |
| 2041 | goto put; |
| 2042 | } |
| 2043 | |
| 2044 | mailbox = mlx4_alloc_cmd_mailbox(dev); |
| 2045 | if (IS_ERR(mailbox)) { |
| 2046 | err = PTR_ERR(mailbox); |
| 2047 | goto put; |
| 2048 | } |
| 2049 | |
| 2050 | if (eqe->type == MLX4_EVENT_TYPE_CMD) { |
| 2051 | ++event_eq->token; |
| 2052 | eqe->event.cmd.token = cpu_to_be16(event_eq->token); |
| 2053 | } |
| 2054 | |
| 2055 | memcpy(mailbox->buf, (u8 *) eqe, 28); |
| 2056 | |
| 2057 | in_modifier = (slave & 0xff) | ((event_eq->eqn & 0xff) << 16); |
| 2058 | |
| 2059 | err = mlx4_cmd(dev, mailbox->dma, in_modifier, 0, |
| 2060 | MLX4_CMD_GEN_EQE, MLX4_CMD_TIME_CLASS_B, |
| 2061 | MLX4_CMD_NATIVE); |
| 2062 | |
| 2063 | put_res(dev, slave, res_id, RES_EQ); |
| 2064 | mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]); |
| 2065 | mlx4_free_cmd_mailbox(dev, mailbox); |
| 2066 | return err; |
| 2067 | |
| 2068 | put: |
| 2069 | put_res(dev, slave, res_id, RES_EQ); |
| 2070 | |
| 2071 | unlock: |
| 2072 | mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]); |
| 2073 | return err; |
| 2074 | } |
| 2075 | |
| 2076 | int mlx4_QUERY_EQ_wrapper(struct mlx4_dev *dev, int slave, |
| 2077 | struct mlx4_vhcr *vhcr, |
| 2078 | struct mlx4_cmd_mailbox *inbox, |
| 2079 | struct mlx4_cmd_mailbox *outbox, |
| 2080 | struct mlx4_cmd_info *cmd) |
| 2081 | { |
| 2082 | int eqn = vhcr->in_modifier; |
| 2083 | int res_id = eqn | (slave << 8); |
| 2084 | struct res_eq *eq; |
| 2085 | int err; |
| 2086 | |
| 2087 | err = get_res(dev, slave, res_id, RES_EQ, &eq); |
| 2088 | if (err) |
| 2089 | return err; |
| 2090 | |
| 2091 | if (eq->com.from_state != RES_EQ_HW) { |
| 2092 | err = -EINVAL; |
| 2093 | goto ex_put; |
| 2094 | } |
| 2095 | |
| 2096 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 2097 | |
| 2098 | ex_put: |
| 2099 | put_res(dev, slave, res_id, RES_EQ); |
| 2100 | return err; |
| 2101 | } |
| 2102 | |
| 2103 | int mlx4_SW2HW_CQ_wrapper(struct mlx4_dev *dev, int slave, |
| 2104 | struct mlx4_vhcr *vhcr, |
| 2105 | struct mlx4_cmd_mailbox *inbox, |
| 2106 | struct mlx4_cmd_mailbox *outbox, |
| 2107 | struct mlx4_cmd_info *cmd) |
| 2108 | { |
| 2109 | int err; |
| 2110 | int cqn = vhcr->in_modifier; |
| 2111 | struct mlx4_cq_context *cqc = inbox->buf; |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 2112 | int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz; |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 2113 | struct res_cq *cq; |
| 2114 | struct res_mtt *mtt; |
| 2115 | |
| 2116 | err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_HW, &cq); |
| 2117 | if (err) |
| 2118 | return err; |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 2119 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 2120 | if (err) |
| 2121 | goto out_move; |
| 2122 | err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt); |
| 2123 | if (err) |
| 2124 | goto out_put; |
| 2125 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 2126 | if (err) |
| 2127 | goto out_put; |
| 2128 | atomic_inc(&mtt->ref_count); |
| 2129 | cq->mtt = mtt; |
| 2130 | put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| 2131 | res_end_move(dev, slave, RES_CQ, cqn); |
| 2132 | return 0; |
| 2133 | |
| 2134 | out_put: |
| 2135 | put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| 2136 | out_move: |
| 2137 | res_abort_move(dev, slave, RES_CQ, cqn); |
| 2138 | return err; |
| 2139 | } |
| 2140 | |
| 2141 | int mlx4_HW2SW_CQ_wrapper(struct mlx4_dev *dev, int slave, |
| 2142 | struct mlx4_vhcr *vhcr, |
| 2143 | struct mlx4_cmd_mailbox *inbox, |
| 2144 | struct mlx4_cmd_mailbox *outbox, |
| 2145 | struct mlx4_cmd_info *cmd) |
| 2146 | { |
| 2147 | int err; |
| 2148 | int cqn = vhcr->in_modifier; |
| 2149 | struct res_cq *cq; |
| 2150 | |
| 2151 | err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_ALLOCATED, &cq); |
| 2152 | if (err) |
| 2153 | return err; |
| 2154 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 2155 | if (err) |
| 2156 | goto out_move; |
| 2157 | atomic_dec(&cq->mtt->ref_count); |
| 2158 | res_end_move(dev, slave, RES_CQ, cqn); |
| 2159 | return 0; |
| 2160 | |
| 2161 | out_move: |
| 2162 | res_abort_move(dev, slave, RES_CQ, cqn); |
| 2163 | return err; |
| 2164 | } |
| 2165 | |
| 2166 | int mlx4_QUERY_CQ_wrapper(struct mlx4_dev *dev, int slave, |
| 2167 | struct mlx4_vhcr *vhcr, |
| 2168 | struct mlx4_cmd_mailbox *inbox, |
| 2169 | struct mlx4_cmd_mailbox *outbox, |
| 2170 | struct mlx4_cmd_info *cmd) |
| 2171 | { |
| 2172 | int cqn = vhcr->in_modifier; |
| 2173 | struct res_cq *cq; |
| 2174 | int err; |
| 2175 | |
| 2176 | err = get_res(dev, slave, cqn, RES_CQ, &cq); |
| 2177 | if (err) |
| 2178 | return err; |
| 2179 | |
| 2180 | if (cq->com.from_state != RES_CQ_HW) |
| 2181 | goto ex_put; |
| 2182 | |
| 2183 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 2184 | ex_put: |
| 2185 | put_res(dev, slave, cqn, RES_CQ); |
| 2186 | |
| 2187 | return err; |
| 2188 | } |
| 2189 | |
| 2190 | static int handle_resize(struct mlx4_dev *dev, int slave, |
| 2191 | struct mlx4_vhcr *vhcr, |
| 2192 | struct mlx4_cmd_mailbox *inbox, |
| 2193 | struct mlx4_cmd_mailbox *outbox, |
| 2194 | struct mlx4_cmd_info *cmd, |
| 2195 | struct res_cq *cq) |
| 2196 | { |
| 2197 | int err; |
| 2198 | struct res_mtt *orig_mtt; |
| 2199 | struct res_mtt *mtt; |
| 2200 | struct mlx4_cq_context *cqc = inbox->buf; |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 2201 | int mtt_base = cq_get_mtt_addr(cqc) / dev->caps.mtt_entry_sz; |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 2202 | |
| 2203 | err = get_res(dev, slave, cq->mtt->com.res_id, RES_MTT, &orig_mtt); |
| 2204 | if (err) |
| 2205 | return err; |
| 2206 | |
| 2207 | if (orig_mtt != cq->mtt) { |
| 2208 | err = -EINVAL; |
| 2209 | goto ex_put; |
| 2210 | } |
| 2211 | |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 2212 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 2213 | if (err) |
| 2214 | goto ex_put; |
| 2215 | |
| 2216 | err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt); |
| 2217 | if (err) |
| 2218 | goto ex_put1; |
| 2219 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 2220 | if (err) |
| 2221 | goto ex_put1; |
| 2222 | atomic_dec(&orig_mtt->ref_count); |
| 2223 | put_res(dev, slave, orig_mtt->com.res_id, RES_MTT); |
| 2224 | atomic_inc(&mtt->ref_count); |
| 2225 | cq->mtt = mtt; |
| 2226 | put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| 2227 | return 0; |
| 2228 | |
| 2229 | ex_put1: |
| 2230 | put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| 2231 | ex_put: |
| 2232 | put_res(dev, slave, orig_mtt->com.res_id, RES_MTT); |
| 2233 | |
| 2234 | return err; |
| 2235 | |
| 2236 | } |
| 2237 | |
| 2238 | int mlx4_MODIFY_CQ_wrapper(struct mlx4_dev *dev, int slave, |
| 2239 | struct mlx4_vhcr *vhcr, |
| 2240 | struct mlx4_cmd_mailbox *inbox, |
| 2241 | struct mlx4_cmd_mailbox *outbox, |
| 2242 | struct mlx4_cmd_info *cmd) |
| 2243 | { |
| 2244 | int cqn = vhcr->in_modifier; |
| 2245 | struct res_cq *cq; |
| 2246 | int err; |
| 2247 | |
| 2248 | err = get_res(dev, slave, cqn, RES_CQ, &cq); |
| 2249 | if (err) |
| 2250 | return err; |
| 2251 | |
| 2252 | if (cq->com.from_state != RES_CQ_HW) |
| 2253 | goto ex_put; |
| 2254 | |
| 2255 | if (vhcr->op_modifier == 0) { |
| 2256 | err = handle_resize(dev, slave, vhcr, inbox, outbox, cmd, cq); |
| 2257 | if (err) |
| 2258 | goto ex_put; |
| 2259 | } |
| 2260 | |
| 2261 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 2262 | ex_put: |
| 2263 | put_res(dev, slave, cqn, RES_CQ); |
| 2264 | |
| 2265 | return err; |
| 2266 | } |
| 2267 | |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 2268 | static int srq_get_mtt_size(struct mlx4_srq_context *srqc) |
| 2269 | { |
| 2270 | int log_srq_size = (be32_to_cpu(srqc->state_logsize_srqn) >> 24) & 0xf; |
| 2271 | int log_rq_stride = srqc->logstride & 7; |
| 2272 | int page_shift = (srqc->log_page_size & 0x3f) + 12; |
| 2273 | |
| 2274 | if (log_srq_size + log_rq_stride + 4 < page_shift) |
| 2275 | return 1; |
| 2276 | |
| 2277 | return 1 << (log_srq_size + log_rq_stride + 4 - page_shift); |
| 2278 | } |
| 2279 | |
| 2280 | int mlx4_SW2HW_SRQ_wrapper(struct mlx4_dev *dev, int slave, |
| 2281 | struct mlx4_vhcr *vhcr, |
| 2282 | struct mlx4_cmd_mailbox *inbox, |
| 2283 | struct mlx4_cmd_mailbox *outbox, |
| 2284 | struct mlx4_cmd_info *cmd) |
| 2285 | { |
| 2286 | int err; |
| 2287 | int srqn = vhcr->in_modifier; |
| 2288 | struct res_mtt *mtt; |
| 2289 | struct res_srq *srq; |
| 2290 | struct mlx4_srq_context *srqc = inbox->buf; |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 2291 | int mtt_base = srq_get_mtt_addr(srqc) / dev->caps.mtt_entry_sz; |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 2292 | |
| 2293 | if (srqn != (be32_to_cpu(srqc->state_logsize_srqn) & 0xffffff)) |
| 2294 | return -EINVAL; |
| 2295 | |
| 2296 | err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_HW, &srq); |
| 2297 | if (err) |
| 2298 | return err; |
Marcel Apfelbaum | 2b8fb28 | 2011-12-13 04:16:56 +0000 | [diff] [blame] | 2299 | err = get_res(dev, slave, mtt_base, RES_MTT, &mtt); |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 2300 | if (err) |
| 2301 | goto ex_abort; |
| 2302 | err = check_mtt_range(dev, slave, mtt_base, srq_get_mtt_size(srqc), |
| 2303 | mtt); |
| 2304 | if (err) |
| 2305 | goto ex_put_mtt; |
| 2306 | |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 2307 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 2308 | if (err) |
| 2309 | goto ex_put_mtt; |
| 2310 | |
| 2311 | atomic_inc(&mtt->ref_count); |
| 2312 | srq->mtt = mtt; |
| 2313 | put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| 2314 | res_end_move(dev, slave, RES_SRQ, srqn); |
| 2315 | return 0; |
| 2316 | |
| 2317 | ex_put_mtt: |
| 2318 | put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| 2319 | ex_abort: |
| 2320 | res_abort_move(dev, slave, RES_SRQ, srqn); |
| 2321 | |
| 2322 | return err; |
| 2323 | } |
| 2324 | |
| 2325 | int mlx4_HW2SW_SRQ_wrapper(struct mlx4_dev *dev, int slave, |
| 2326 | struct mlx4_vhcr *vhcr, |
| 2327 | struct mlx4_cmd_mailbox *inbox, |
| 2328 | struct mlx4_cmd_mailbox *outbox, |
| 2329 | struct mlx4_cmd_info *cmd) |
| 2330 | { |
| 2331 | int err; |
| 2332 | int srqn = vhcr->in_modifier; |
| 2333 | struct res_srq *srq; |
| 2334 | |
| 2335 | err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_ALLOCATED, &srq); |
| 2336 | if (err) |
| 2337 | return err; |
| 2338 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 2339 | if (err) |
| 2340 | goto ex_abort; |
| 2341 | atomic_dec(&srq->mtt->ref_count); |
| 2342 | if (srq->cq) |
| 2343 | atomic_dec(&srq->cq->ref_count); |
| 2344 | res_end_move(dev, slave, RES_SRQ, srqn); |
| 2345 | |
| 2346 | return 0; |
| 2347 | |
| 2348 | ex_abort: |
| 2349 | res_abort_move(dev, slave, RES_SRQ, srqn); |
| 2350 | |
| 2351 | return err; |
| 2352 | } |
| 2353 | |
| 2354 | int mlx4_QUERY_SRQ_wrapper(struct mlx4_dev *dev, int slave, |
| 2355 | struct mlx4_vhcr *vhcr, |
| 2356 | struct mlx4_cmd_mailbox *inbox, |
| 2357 | struct mlx4_cmd_mailbox *outbox, |
| 2358 | struct mlx4_cmd_info *cmd) |
| 2359 | { |
| 2360 | int err; |
| 2361 | int srqn = vhcr->in_modifier; |
| 2362 | struct res_srq *srq; |
| 2363 | |
| 2364 | err = get_res(dev, slave, srqn, RES_SRQ, &srq); |
| 2365 | if (err) |
| 2366 | return err; |
| 2367 | if (srq->com.from_state != RES_SRQ_HW) { |
| 2368 | err = -EBUSY; |
| 2369 | goto out; |
| 2370 | } |
| 2371 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 2372 | out: |
| 2373 | put_res(dev, slave, srqn, RES_SRQ); |
| 2374 | return err; |
| 2375 | } |
| 2376 | |
| 2377 | int mlx4_ARM_SRQ_wrapper(struct mlx4_dev *dev, int slave, |
| 2378 | struct mlx4_vhcr *vhcr, |
| 2379 | struct mlx4_cmd_mailbox *inbox, |
| 2380 | struct mlx4_cmd_mailbox *outbox, |
| 2381 | struct mlx4_cmd_info *cmd) |
| 2382 | { |
| 2383 | int err; |
| 2384 | int srqn = vhcr->in_modifier; |
| 2385 | struct res_srq *srq; |
| 2386 | |
| 2387 | err = get_res(dev, slave, srqn, RES_SRQ, &srq); |
| 2388 | if (err) |
| 2389 | return err; |
| 2390 | |
| 2391 | if (srq->com.from_state != RES_SRQ_HW) { |
| 2392 | err = -EBUSY; |
| 2393 | goto out; |
| 2394 | } |
| 2395 | |
| 2396 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 2397 | out: |
| 2398 | put_res(dev, slave, srqn, RES_SRQ); |
| 2399 | return err; |
| 2400 | } |
| 2401 | |
| 2402 | int mlx4_GEN_QP_wrapper(struct mlx4_dev *dev, int slave, |
| 2403 | struct mlx4_vhcr *vhcr, |
| 2404 | struct mlx4_cmd_mailbox *inbox, |
| 2405 | struct mlx4_cmd_mailbox *outbox, |
| 2406 | struct mlx4_cmd_info *cmd) |
| 2407 | { |
| 2408 | int err; |
| 2409 | int qpn = vhcr->in_modifier & 0x7fffff; |
| 2410 | struct res_qp *qp; |
| 2411 | |
| 2412 | err = get_res(dev, slave, qpn, RES_QP, &qp); |
| 2413 | if (err) |
| 2414 | return err; |
| 2415 | if (qp->com.from_state != RES_QP_HW) { |
| 2416 | err = -EBUSY; |
| 2417 | goto out; |
| 2418 | } |
| 2419 | |
| 2420 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 2421 | out: |
| 2422 | put_res(dev, slave, qpn, RES_QP); |
| 2423 | return err; |
| 2424 | } |
| 2425 | |
| 2426 | int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave, |
| 2427 | struct mlx4_vhcr *vhcr, |
| 2428 | struct mlx4_cmd_mailbox *inbox, |
| 2429 | struct mlx4_cmd_mailbox *outbox, |
| 2430 | struct mlx4_cmd_info *cmd) |
| 2431 | { |
| 2432 | struct mlx4_qp_context *qpc = inbox->buf + 8; |
| 2433 | |
| 2434 | update_ud_gid(dev, qpc, (u8)slave); |
| 2435 | |
| 2436 | return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 2437 | } |
| 2438 | |
| 2439 | int mlx4_2RST_QP_wrapper(struct mlx4_dev *dev, int slave, |
| 2440 | struct mlx4_vhcr *vhcr, |
| 2441 | struct mlx4_cmd_mailbox *inbox, |
| 2442 | struct mlx4_cmd_mailbox *outbox, |
| 2443 | struct mlx4_cmd_info *cmd) |
| 2444 | { |
| 2445 | int err; |
| 2446 | int qpn = vhcr->in_modifier & 0x7fffff; |
| 2447 | struct res_qp *qp; |
| 2448 | |
| 2449 | err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, &qp, 0); |
| 2450 | if (err) |
| 2451 | return err; |
| 2452 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 2453 | if (err) |
| 2454 | goto ex_abort; |
| 2455 | |
| 2456 | atomic_dec(&qp->mtt->ref_count); |
| 2457 | atomic_dec(&qp->rcq->ref_count); |
| 2458 | atomic_dec(&qp->scq->ref_count); |
| 2459 | if (qp->srq) |
| 2460 | atomic_dec(&qp->srq->ref_count); |
| 2461 | res_end_move(dev, slave, RES_QP, qpn); |
| 2462 | return 0; |
| 2463 | |
| 2464 | ex_abort: |
| 2465 | res_abort_move(dev, slave, RES_QP, qpn); |
| 2466 | |
| 2467 | return err; |
| 2468 | } |
| 2469 | |
| 2470 | static struct res_gid *find_gid(struct mlx4_dev *dev, int slave, |
| 2471 | struct res_qp *rqp, u8 *gid) |
| 2472 | { |
| 2473 | struct res_gid *res; |
| 2474 | |
| 2475 | list_for_each_entry(res, &rqp->mcg_list, list) { |
| 2476 | if (!memcmp(res->gid, gid, 16)) |
| 2477 | return res; |
| 2478 | } |
| 2479 | return NULL; |
| 2480 | } |
| 2481 | |
| 2482 | static int add_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp, |
| 2483 | u8 *gid, enum mlx4_protocol prot) |
| 2484 | { |
| 2485 | struct res_gid *res; |
| 2486 | int err; |
| 2487 | |
| 2488 | res = kzalloc(sizeof *res, GFP_KERNEL); |
| 2489 | if (!res) |
| 2490 | return -ENOMEM; |
| 2491 | |
| 2492 | spin_lock_irq(&rqp->mcg_spl); |
| 2493 | if (find_gid(dev, slave, rqp, gid)) { |
| 2494 | kfree(res); |
| 2495 | err = -EEXIST; |
| 2496 | } else { |
| 2497 | memcpy(res->gid, gid, 16); |
| 2498 | res->prot = prot; |
| 2499 | list_add_tail(&res->list, &rqp->mcg_list); |
| 2500 | err = 0; |
| 2501 | } |
| 2502 | spin_unlock_irq(&rqp->mcg_spl); |
| 2503 | |
| 2504 | return err; |
| 2505 | } |
| 2506 | |
| 2507 | static int rem_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp, |
| 2508 | u8 *gid, enum mlx4_protocol prot) |
| 2509 | { |
| 2510 | struct res_gid *res; |
| 2511 | int err; |
| 2512 | |
| 2513 | spin_lock_irq(&rqp->mcg_spl); |
| 2514 | res = find_gid(dev, slave, rqp, gid); |
| 2515 | if (!res || res->prot != prot) |
| 2516 | err = -EINVAL; |
| 2517 | else { |
| 2518 | list_del(&res->list); |
| 2519 | kfree(res); |
| 2520 | err = 0; |
| 2521 | } |
| 2522 | spin_unlock_irq(&rqp->mcg_spl); |
| 2523 | |
| 2524 | return err; |
| 2525 | } |
| 2526 | |
| 2527 | int mlx4_QP_ATTACH_wrapper(struct mlx4_dev *dev, int slave, |
| 2528 | struct mlx4_vhcr *vhcr, |
| 2529 | struct mlx4_cmd_mailbox *inbox, |
| 2530 | struct mlx4_cmd_mailbox *outbox, |
| 2531 | struct mlx4_cmd_info *cmd) |
| 2532 | { |
| 2533 | struct mlx4_qp qp; /* dummy for calling attach/detach */ |
| 2534 | u8 *gid = inbox->buf; |
| 2535 | enum mlx4_protocol prot = (vhcr->in_modifier >> 28) & 0x7; |
| 2536 | int err, err1; |
| 2537 | int qpn; |
| 2538 | struct res_qp *rqp; |
| 2539 | int attach = vhcr->op_modifier; |
| 2540 | int block_loopback = vhcr->in_modifier >> 31; |
| 2541 | u8 steer_type_mask = 2; |
Eugenia Emantayev | 58a30d6 | 2012-02-14 06:37:16 +0000 | [diff] [blame] | 2542 | enum mlx4_steer_type type = (gid[7] & steer_type_mask) >> 1; |
Eli Cohen | c82e9aa | 2011-12-13 04:15:24 +0000 | [diff] [blame] | 2543 | |
| 2544 | qpn = vhcr->in_modifier & 0xffffff; |
| 2545 | err = get_res(dev, slave, qpn, RES_QP, &rqp); |
| 2546 | if (err) |
| 2547 | return err; |
| 2548 | |
| 2549 | qp.qpn = qpn; |
| 2550 | if (attach) { |
| 2551 | err = add_mcg_res(dev, slave, rqp, gid, prot); |
| 2552 | if (err) |
| 2553 | goto ex_put; |
| 2554 | |
| 2555 | err = mlx4_qp_attach_common(dev, &qp, gid, |
| 2556 | block_loopback, prot, type); |
| 2557 | if (err) |
| 2558 | goto ex_rem; |
| 2559 | } else { |
| 2560 | err = rem_mcg_res(dev, slave, rqp, gid, prot); |
| 2561 | if (err) |
| 2562 | goto ex_put; |
| 2563 | err = mlx4_qp_detach_common(dev, &qp, gid, prot, type); |
| 2564 | } |
| 2565 | |
| 2566 | put_res(dev, slave, qpn, RES_QP); |
| 2567 | return 0; |
| 2568 | |
| 2569 | ex_rem: |
| 2570 | /* ignore error return below, already in error */ |
| 2571 | err1 = rem_mcg_res(dev, slave, rqp, gid, prot); |
| 2572 | ex_put: |
| 2573 | put_res(dev, slave, qpn, RES_QP); |
| 2574 | |
| 2575 | return err; |
| 2576 | } |
| 2577 | |
| 2578 | enum { |
| 2579 | BUSY_MAX_RETRIES = 10 |
| 2580 | }; |
| 2581 | |
| 2582 | int mlx4_QUERY_IF_STAT_wrapper(struct mlx4_dev *dev, int slave, |
| 2583 | struct mlx4_vhcr *vhcr, |
| 2584 | struct mlx4_cmd_mailbox *inbox, |
| 2585 | struct mlx4_cmd_mailbox *outbox, |
| 2586 | struct mlx4_cmd_info *cmd) |
| 2587 | { |
| 2588 | int err; |
| 2589 | int index = vhcr->in_modifier & 0xffff; |
| 2590 | |
| 2591 | err = get_res(dev, slave, index, RES_COUNTER, NULL); |
| 2592 | if (err) |
| 2593 | return err; |
| 2594 | |
| 2595 | err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| 2596 | put_res(dev, slave, index, RES_COUNTER); |
| 2597 | return err; |
| 2598 | } |
| 2599 | |
| 2600 | static void detach_qp(struct mlx4_dev *dev, int slave, struct res_qp *rqp) |
| 2601 | { |
| 2602 | struct res_gid *rgid; |
| 2603 | struct res_gid *tmp; |
| 2604 | int err; |
| 2605 | struct mlx4_qp qp; /* dummy for calling attach/detach */ |
| 2606 | |
| 2607 | list_for_each_entry_safe(rgid, tmp, &rqp->mcg_list, list) { |
| 2608 | qp.qpn = rqp->local_qpn; |
| 2609 | err = mlx4_qp_detach_common(dev, &qp, rgid->gid, rgid->prot, |
| 2610 | MLX4_MC_STEER); |
| 2611 | list_del(&rgid->list); |
| 2612 | kfree(rgid); |
| 2613 | } |
| 2614 | } |
| 2615 | |
| 2616 | static int _move_all_busy(struct mlx4_dev *dev, int slave, |
| 2617 | enum mlx4_resource type, int print) |
| 2618 | { |
| 2619 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 2620 | struct mlx4_resource_tracker *tracker = |
| 2621 | &priv->mfunc.master.res_tracker; |
| 2622 | struct list_head *rlist = &tracker->slave_list[slave].res_list[type]; |
| 2623 | struct res_common *r; |
| 2624 | struct res_common *tmp; |
| 2625 | int busy; |
| 2626 | |
| 2627 | busy = 0; |
| 2628 | spin_lock_irq(mlx4_tlock(dev)); |
| 2629 | list_for_each_entry_safe(r, tmp, rlist, list) { |
| 2630 | if (r->owner == slave) { |
| 2631 | if (!r->removing) { |
| 2632 | if (r->state == RES_ANY_BUSY) { |
| 2633 | if (print) |
| 2634 | mlx4_dbg(dev, |
| 2635 | "%s id 0x%x is busy\n", |
| 2636 | ResourceType(type), |
| 2637 | r->res_id); |
| 2638 | ++busy; |
| 2639 | } else { |
| 2640 | r->from_state = r->state; |
| 2641 | r->state = RES_ANY_BUSY; |
| 2642 | r->removing = 1; |
| 2643 | } |
| 2644 | } |
| 2645 | } |
| 2646 | } |
| 2647 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2648 | |
| 2649 | return busy; |
| 2650 | } |
| 2651 | |
| 2652 | static int move_all_busy(struct mlx4_dev *dev, int slave, |
| 2653 | enum mlx4_resource type) |
| 2654 | { |
| 2655 | unsigned long begin; |
| 2656 | int busy; |
| 2657 | |
| 2658 | begin = jiffies; |
| 2659 | do { |
| 2660 | busy = _move_all_busy(dev, slave, type, 0); |
| 2661 | if (time_after(jiffies, begin + 5 * HZ)) |
| 2662 | break; |
| 2663 | if (busy) |
| 2664 | cond_resched(); |
| 2665 | } while (busy); |
| 2666 | |
| 2667 | if (busy) |
| 2668 | busy = _move_all_busy(dev, slave, type, 1); |
| 2669 | |
| 2670 | return busy; |
| 2671 | } |
| 2672 | static void rem_slave_qps(struct mlx4_dev *dev, int slave) |
| 2673 | { |
| 2674 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 2675 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 2676 | struct list_head *qp_list = |
| 2677 | &tracker->slave_list[slave].res_list[RES_QP]; |
| 2678 | struct res_qp *qp; |
| 2679 | struct res_qp *tmp; |
| 2680 | int state; |
| 2681 | u64 in_param; |
| 2682 | int qpn; |
| 2683 | int err; |
| 2684 | |
| 2685 | err = move_all_busy(dev, slave, RES_QP); |
| 2686 | if (err) |
| 2687 | mlx4_warn(dev, "rem_slave_qps: Could not move all qps to busy" |
| 2688 | "for slave %d\n", slave); |
| 2689 | |
| 2690 | spin_lock_irq(mlx4_tlock(dev)); |
| 2691 | list_for_each_entry_safe(qp, tmp, qp_list, com.list) { |
| 2692 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2693 | if (qp->com.owner == slave) { |
| 2694 | qpn = qp->com.res_id; |
| 2695 | detach_qp(dev, slave, qp); |
| 2696 | state = qp->com.from_state; |
| 2697 | while (state != 0) { |
| 2698 | switch (state) { |
| 2699 | case RES_QP_RESERVED: |
| 2700 | spin_lock_irq(mlx4_tlock(dev)); |
| 2701 | radix_tree_delete(&tracker->res_tree[RES_QP], |
| 2702 | qp->com.res_id); |
| 2703 | list_del(&qp->com.list); |
| 2704 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2705 | kfree(qp); |
| 2706 | state = 0; |
| 2707 | break; |
| 2708 | case RES_QP_MAPPED: |
| 2709 | if (!valid_reserved(dev, slave, qpn)) |
| 2710 | __mlx4_qp_free_icm(dev, qpn); |
| 2711 | state = RES_QP_RESERVED; |
| 2712 | break; |
| 2713 | case RES_QP_HW: |
| 2714 | in_param = slave; |
| 2715 | err = mlx4_cmd(dev, in_param, |
| 2716 | qp->local_qpn, 2, |
| 2717 | MLX4_CMD_2RST_QP, |
| 2718 | MLX4_CMD_TIME_CLASS_A, |
| 2719 | MLX4_CMD_NATIVE); |
| 2720 | if (err) |
| 2721 | mlx4_dbg(dev, "rem_slave_qps: failed" |
| 2722 | " to move slave %d qpn %d to" |
| 2723 | " reset\n", slave, |
| 2724 | qp->local_qpn); |
| 2725 | atomic_dec(&qp->rcq->ref_count); |
| 2726 | atomic_dec(&qp->scq->ref_count); |
| 2727 | atomic_dec(&qp->mtt->ref_count); |
| 2728 | if (qp->srq) |
| 2729 | atomic_dec(&qp->srq->ref_count); |
| 2730 | state = RES_QP_MAPPED; |
| 2731 | break; |
| 2732 | default: |
| 2733 | state = 0; |
| 2734 | } |
| 2735 | } |
| 2736 | } |
| 2737 | spin_lock_irq(mlx4_tlock(dev)); |
| 2738 | } |
| 2739 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2740 | } |
| 2741 | |
| 2742 | static void rem_slave_srqs(struct mlx4_dev *dev, int slave) |
| 2743 | { |
| 2744 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 2745 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 2746 | struct list_head *srq_list = |
| 2747 | &tracker->slave_list[slave].res_list[RES_SRQ]; |
| 2748 | struct res_srq *srq; |
| 2749 | struct res_srq *tmp; |
| 2750 | int state; |
| 2751 | u64 in_param; |
| 2752 | LIST_HEAD(tlist); |
| 2753 | int srqn; |
| 2754 | int err; |
| 2755 | |
| 2756 | err = move_all_busy(dev, slave, RES_SRQ); |
| 2757 | if (err) |
| 2758 | mlx4_warn(dev, "rem_slave_srqs: Could not move all srqs to " |
| 2759 | "busy for slave %d\n", slave); |
| 2760 | |
| 2761 | spin_lock_irq(mlx4_tlock(dev)); |
| 2762 | list_for_each_entry_safe(srq, tmp, srq_list, com.list) { |
| 2763 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2764 | if (srq->com.owner == slave) { |
| 2765 | srqn = srq->com.res_id; |
| 2766 | state = srq->com.from_state; |
| 2767 | while (state != 0) { |
| 2768 | switch (state) { |
| 2769 | case RES_SRQ_ALLOCATED: |
| 2770 | __mlx4_srq_free_icm(dev, srqn); |
| 2771 | spin_lock_irq(mlx4_tlock(dev)); |
| 2772 | radix_tree_delete(&tracker->res_tree[RES_SRQ], |
| 2773 | srqn); |
| 2774 | list_del(&srq->com.list); |
| 2775 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2776 | kfree(srq); |
| 2777 | state = 0; |
| 2778 | break; |
| 2779 | |
| 2780 | case RES_SRQ_HW: |
| 2781 | in_param = slave; |
| 2782 | err = mlx4_cmd(dev, in_param, srqn, 1, |
| 2783 | MLX4_CMD_HW2SW_SRQ, |
| 2784 | MLX4_CMD_TIME_CLASS_A, |
| 2785 | MLX4_CMD_NATIVE); |
| 2786 | if (err) |
| 2787 | mlx4_dbg(dev, "rem_slave_srqs: failed" |
| 2788 | " to move slave %d srq %d to" |
| 2789 | " SW ownership\n", |
| 2790 | slave, srqn); |
| 2791 | |
| 2792 | atomic_dec(&srq->mtt->ref_count); |
| 2793 | if (srq->cq) |
| 2794 | atomic_dec(&srq->cq->ref_count); |
| 2795 | state = RES_SRQ_ALLOCATED; |
| 2796 | break; |
| 2797 | |
| 2798 | default: |
| 2799 | state = 0; |
| 2800 | } |
| 2801 | } |
| 2802 | } |
| 2803 | spin_lock_irq(mlx4_tlock(dev)); |
| 2804 | } |
| 2805 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2806 | } |
| 2807 | |
| 2808 | static void rem_slave_cqs(struct mlx4_dev *dev, int slave) |
| 2809 | { |
| 2810 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 2811 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 2812 | struct list_head *cq_list = |
| 2813 | &tracker->slave_list[slave].res_list[RES_CQ]; |
| 2814 | struct res_cq *cq; |
| 2815 | struct res_cq *tmp; |
| 2816 | int state; |
| 2817 | u64 in_param; |
| 2818 | LIST_HEAD(tlist); |
| 2819 | int cqn; |
| 2820 | int err; |
| 2821 | |
| 2822 | err = move_all_busy(dev, slave, RES_CQ); |
| 2823 | if (err) |
| 2824 | mlx4_warn(dev, "rem_slave_cqs: Could not move all cqs to " |
| 2825 | "busy for slave %d\n", slave); |
| 2826 | |
| 2827 | spin_lock_irq(mlx4_tlock(dev)); |
| 2828 | list_for_each_entry_safe(cq, tmp, cq_list, com.list) { |
| 2829 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2830 | if (cq->com.owner == slave && !atomic_read(&cq->ref_count)) { |
| 2831 | cqn = cq->com.res_id; |
| 2832 | state = cq->com.from_state; |
| 2833 | while (state != 0) { |
| 2834 | switch (state) { |
| 2835 | case RES_CQ_ALLOCATED: |
| 2836 | __mlx4_cq_free_icm(dev, cqn); |
| 2837 | spin_lock_irq(mlx4_tlock(dev)); |
| 2838 | radix_tree_delete(&tracker->res_tree[RES_CQ], |
| 2839 | cqn); |
| 2840 | list_del(&cq->com.list); |
| 2841 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2842 | kfree(cq); |
| 2843 | state = 0; |
| 2844 | break; |
| 2845 | |
| 2846 | case RES_CQ_HW: |
| 2847 | in_param = slave; |
| 2848 | err = mlx4_cmd(dev, in_param, cqn, 1, |
| 2849 | MLX4_CMD_HW2SW_CQ, |
| 2850 | MLX4_CMD_TIME_CLASS_A, |
| 2851 | MLX4_CMD_NATIVE); |
| 2852 | if (err) |
| 2853 | mlx4_dbg(dev, "rem_slave_cqs: failed" |
| 2854 | " to move slave %d cq %d to" |
| 2855 | " SW ownership\n", |
| 2856 | slave, cqn); |
| 2857 | atomic_dec(&cq->mtt->ref_count); |
| 2858 | state = RES_CQ_ALLOCATED; |
| 2859 | break; |
| 2860 | |
| 2861 | default: |
| 2862 | state = 0; |
| 2863 | } |
| 2864 | } |
| 2865 | } |
| 2866 | spin_lock_irq(mlx4_tlock(dev)); |
| 2867 | } |
| 2868 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2869 | } |
| 2870 | |
| 2871 | static void rem_slave_mrs(struct mlx4_dev *dev, int slave) |
| 2872 | { |
| 2873 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 2874 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 2875 | struct list_head *mpt_list = |
| 2876 | &tracker->slave_list[slave].res_list[RES_MPT]; |
| 2877 | struct res_mpt *mpt; |
| 2878 | struct res_mpt *tmp; |
| 2879 | int state; |
| 2880 | u64 in_param; |
| 2881 | LIST_HEAD(tlist); |
| 2882 | int mptn; |
| 2883 | int err; |
| 2884 | |
| 2885 | err = move_all_busy(dev, slave, RES_MPT); |
| 2886 | if (err) |
| 2887 | mlx4_warn(dev, "rem_slave_mrs: Could not move all mpts to " |
| 2888 | "busy for slave %d\n", slave); |
| 2889 | |
| 2890 | spin_lock_irq(mlx4_tlock(dev)); |
| 2891 | list_for_each_entry_safe(mpt, tmp, mpt_list, com.list) { |
| 2892 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2893 | if (mpt->com.owner == slave) { |
| 2894 | mptn = mpt->com.res_id; |
| 2895 | state = mpt->com.from_state; |
| 2896 | while (state != 0) { |
| 2897 | switch (state) { |
| 2898 | case RES_MPT_RESERVED: |
| 2899 | __mlx4_mr_release(dev, mpt->key); |
| 2900 | spin_lock_irq(mlx4_tlock(dev)); |
| 2901 | radix_tree_delete(&tracker->res_tree[RES_MPT], |
| 2902 | mptn); |
| 2903 | list_del(&mpt->com.list); |
| 2904 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2905 | kfree(mpt); |
| 2906 | state = 0; |
| 2907 | break; |
| 2908 | |
| 2909 | case RES_MPT_MAPPED: |
| 2910 | __mlx4_mr_free_icm(dev, mpt->key); |
| 2911 | state = RES_MPT_RESERVED; |
| 2912 | break; |
| 2913 | |
| 2914 | case RES_MPT_HW: |
| 2915 | in_param = slave; |
| 2916 | err = mlx4_cmd(dev, in_param, mptn, 0, |
| 2917 | MLX4_CMD_HW2SW_MPT, |
| 2918 | MLX4_CMD_TIME_CLASS_A, |
| 2919 | MLX4_CMD_NATIVE); |
| 2920 | if (err) |
| 2921 | mlx4_dbg(dev, "rem_slave_mrs: failed" |
| 2922 | " to move slave %d mpt %d to" |
| 2923 | " SW ownership\n", |
| 2924 | slave, mptn); |
| 2925 | if (mpt->mtt) |
| 2926 | atomic_dec(&mpt->mtt->ref_count); |
| 2927 | state = RES_MPT_MAPPED; |
| 2928 | break; |
| 2929 | default: |
| 2930 | state = 0; |
| 2931 | } |
| 2932 | } |
| 2933 | } |
| 2934 | spin_lock_irq(mlx4_tlock(dev)); |
| 2935 | } |
| 2936 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2937 | } |
| 2938 | |
| 2939 | static void rem_slave_mtts(struct mlx4_dev *dev, int slave) |
| 2940 | { |
| 2941 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 2942 | struct mlx4_resource_tracker *tracker = |
| 2943 | &priv->mfunc.master.res_tracker; |
| 2944 | struct list_head *mtt_list = |
| 2945 | &tracker->slave_list[slave].res_list[RES_MTT]; |
| 2946 | struct res_mtt *mtt; |
| 2947 | struct res_mtt *tmp; |
| 2948 | int state; |
| 2949 | LIST_HEAD(tlist); |
| 2950 | int base; |
| 2951 | int err; |
| 2952 | |
| 2953 | err = move_all_busy(dev, slave, RES_MTT); |
| 2954 | if (err) |
| 2955 | mlx4_warn(dev, "rem_slave_mtts: Could not move all mtts to " |
| 2956 | "busy for slave %d\n", slave); |
| 2957 | |
| 2958 | spin_lock_irq(mlx4_tlock(dev)); |
| 2959 | list_for_each_entry_safe(mtt, tmp, mtt_list, com.list) { |
| 2960 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2961 | if (mtt->com.owner == slave) { |
| 2962 | base = mtt->com.res_id; |
| 2963 | state = mtt->com.from_state; |
| 2964 | while (state != 0) { |
| 2965 | switch (state) { |
| 2966 | case RES_MTT_ALLOCATED: |
| 2967 | __mlx4_free_mtt_range(dev, base, |
| 2968 | mtt->order); |
| 2969 | spin_lock_irq(mlx4_tlock(dev)); |
| 2970 | radix_tree_delete(&tracker->res_tree[RES_MTT], |
| 2971 | base); |
| 2972 | list_del(&mtt->com.list); |
| 2973 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2974 | kfree(mtt); |
| 2975 | state = 0; |
| 2976 | break; |
| 2977 | |
| 2978 | default: |
| 2979 | state = 0; |
| 2980 | } |
| 2981 | } |
| 2982 | } |
| 2983 | spin_lock_irq(mlx4_tlock(dev)); |
| 2984 | } |
| 2985 | spin_unlock_irq(mlx4_tlock(dev)); |
| 2986 | } |
| 2987 | |
| 2988 | static void rem_slave_eqs(struct mlx4_dev *dev, int slave) |
| 2989 | { |
| 2990 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 2991 | struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| 2992 | struct list_head *eq_list = |
| 2993 | &tracker->slave_list[slave].res_list[RES_EQ]; |
| 2994 | struct res_eq *eq; |
| 2995 | struct res_eq *tmp; |
| 2996 | int err; |
| 2997 | int state; |
| 2998 | LIST_HEAD(tlist); |
| 2999 | int eqn; |
| 3000 | struct mlx4_cmd_mailbox *mailbox; |
| 3001 | |
| 3002 | err = move_all_busy(dev, slave, RES_EQ); |
| 3003 | if (err) |
| 3004 | mlx4_warn(dev, "rem_slave_eqs: Could not move all eqs to " |
| 3005 | "busy for slave %d\n", slave); |
| 3006 | |
| 3007 | spin_lock_irq(mlx4_tlock(dev)); |
| 3008 | list_for_each_entry_safe(eq, tmp, eq_list, com.list) { |
| 3009 | spin_unlock_irq(mlx4_tlock(dev)); |
| 3010 | if (eq->com.owner == slave) { |
| 3011 | eqn = eq->com.res_id; |
| 3012 | state = eq->com.from_state; |
| 3013 | while (state != 0) { |
| 3014 | switch (state) { |
| 3015 | case RES_EQ_RESERVED: |
| 3016 | spin_lock_irq(mlx4_tlock(dev)); |
| 3017 | radix_tree_delete(&tracker->res_tree[RES_EQ], |
| 3018 | eqn); |
| 3019 | list_del(&eq->com.list); |
| 3020 | spin_unlock_irq(mlx4_tlock(dev)); |
| 3021 | kfree(eq); |
| 3022 | state = 0; |
| 3023 | break; |
| 3024 | |
| 3025 | case RES_EQ_HW: |
| 3026 | mailbox = mlx4_alloc_cmd_mailbox(dev); |
| 3027 | if (IS_ERR(mailbox)) { |
| 3028 | cond_resched(); |
| 3029 | continue; |
| 3030 | } |
| 3031 | err = mlx4_cmd_box(dev, slave, 0, |
| 3032 | eqn & 0xff, 0, |
| 3033 | MLX4_CMD_HW2SW_EQ, |
| 3034 | MLX4_CMD_TIME_CLASS_A, |
| 3035 | MLX4_CMD_NATIVE); |
| 3036 | mlx4_dbg(dev, "rem_slave_eqs: failed" |
| 3037 | " to move slave %d eqs %d to" |
| 3038 | " SW ownership\n", slave, eqn); |
| 3039 | mlx4_free_cmd_mailbox(dev, mailbox); |
| 3040 | if (!err) { |
| 3041 | atomic_dec(&eq->mtt->ref_count); |
| 3042 | state = RES_EQ_RESERVED; |
| 3043 | } |
| 3044 | break; |
| 3045 | |
| 3046 | default: |
| 3047 | state = 0; |
| 3048 | } |
| 3049 | } |
| 3050 | } |
| 3051 | spin_lock_irq(mlx4_tlock(dev)); |
| 3052 | } |
| 3053 | spin_unlock_irq(mlx4_tlock(dev)); |
| 3054 | } |
| 3055 | |
| 3056 | void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave) |
| 3057 | { |
| 3058 | struct mlx4_priv *priv = mlx4_priv(dev); |
| 3059 | |
| 3060 | mutex_lock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); |
| 3061 | /*VLAN*/ |
| 3062 | rem_slave_macs(dev, slave); |
| 3063 | rem_slave_qps(dev, slave); |
| 3064 | rem_slave_srqs(dev, slave); |
| 3065 | rem_slave_cqs(dev, slave); |
| 3066 | rem_slave_mrs(dev, slave); |
| 3067 | rem_slave_eqs(dev, slave); |
| 3068 | rem_slave_mtts(dev, slave); |
| 3069 | mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); |
| 3070 | } |