1 /* 2 * Broadcom NetXtreme-E RoCE driver. 3 * 4 * Copyright (c) 2016 - 2017, Broadcom. All rights reserved. The term 5 * Broadcom refers to Broadcom Limited and/or its subsidiaries. 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 * BSD license below: 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in 21 * the documentation and/or other materials provided with the 22 * distribution. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 26 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 31 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 32 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 33 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 34 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35 * 36 * Description: Slow Path Operators 37 */ 38 39 #include <linux/interrupt.h> 40 #include <linux/spinlock.h> 41 #include <linux/sched.h> 42 #include <linux/pci.h> 43 44 #include "roce_hsi.h" 45 46 #include "qplib_res.h" 47 #include "qplib_rcfw.h" 48 #include "qplib_sp.h" 49 50 const struct bnxt_qplib_gid bnxt_qplib_gid_zero = {{ 0, 0, 0, 0, 0, 0, 0, 0, 51 0, 0, 0, 0, 0, 0, 0, 0 } }; 52 53 /* Device */ 54 55 static bool bnxt_qplib_is_atomic_cap(struct bnxt_qplib_rcfw *rcfw) 56 { 57 int rc; 58 u16 pcie_ctl2; 59 60 rc = pcie_capability_read_word(rcfw->pdev, PCI_EXP_DEVCTL2, 61 &pcie_ctl2); 62 if (rc) 63 return false; 64 return !!(pcie_ctl2 & PCI_EXP_DEVCTL2_ATOMIC_REQ); 65 } 66 67 int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw, 68 struct bnxt_qplib_dev_attr *attr) 69 { 70 struct cmdq_query_func req; 71 struct creq_query_func_resp resp; 72 struct bnxt_qplib_rcfw_sbuf *sbuf; 73 struct creq_query_func_resp_sb *sb; 74 u16 cmd_flags = 0; 75 u32 temp; 76 u8 *tqm_alloc; 77 int i, rc = 0; 78 79 RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags); 80 81 sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb)); 82 if (!sbuf) { 83 dev_err(&rcfw->pdev->dev, 84 "QPLIB: SP: QUERY_FUNC alloc side buffer failed"); 85 return -ENOMEM; 86 } 87 88 sb = sbuf->sb; 89 req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS; 90 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, 91 (void *)sbuf, 0); 92 if (rc) 93 goto bail; 94 95 /* Extract the context from the side buffer */ 96 attr->max_qp = le32_to_cpu(sb->max_qp); 97 /* max_qp value reported by FW for PF doesn't include the QP1 for PF */ 98 attr->max_qp += 1; 99 attr->max_qp_rd_atom = 100 sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ? 101 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom; 102 attr->max_qp_init_rd_atom = 103 sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ? 104 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom; 105 attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr); 106 /* 107 * 128 WQEs needs to be reserved for the HW (8916). Prevent 108 * reporting the max number 109 */ 110 attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS; 111 attr->max_qp_sges = sb->max_sge; 112 attr->max_cq = le32_to_cpu(sb->max_cq); 113 attr->max_cq_wqes = le32_to_cpu(sb->max_cqe); 114 attr->max_cq_sges = attr->max_qp_sges; 115 attr->max_mr = le32_to_cpu(sb->max_mr); 116 attr->max_mw = le32_to_cpu(sb->max_mw); 117 118 attr->max_mr_size = le64_to_cpu(sb->max_mr_size); 119 attr->max_pd = 64 * 1024; 120 attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp); 121 attr->max_ah = le32_to_cpu(sb->max_ah); 122 123 attr->max_fmr = le32_to_cpu(sb->max_fmr); 124 attr->max_map_per_fmr = sb->max_map_per_fmr; 125 126 attr->max_srq = le16_to_cpu(sb->max_srq); 127 attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1; 128 attr->max_srq_sges = sb->max_srq_sge; 129 /* Bono only reports 1 PKEY for now, but it can support > 1 */ 130 attr->max_pkey = le32_to_cpu(sb->max_pkeys); 131 132 attr->max_inline_data = le32_to_cpu(sb->max_inline_data); 133 attr->l2_db_size = (sb->l2_db_space_size + 1) * PAGE_SIZE; 134 attr->max_sgid = le32_to_cpu(sb->max_gid); 135 136 strlcpy(attr->fw_ver, "20.6.28.0", sizeof(attr->fw_ver)); 137 138 for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) { 139 temp = le32_to_cpu(sb->tqm_alloc_reqs[i]); 140 tqm_alloc = (u8 *)&temp; 141 attr->tqm_alloc_reqs[i * 4] = *tqm_alloc; 142 attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc); 143 attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc); 144 attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc); 145 } 146 147 attr->is_atomic = bnxt_qplib_is_atomic_cap(rcfw); 148 bail: 149 bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf); 150 return rc; 151 } 152 153 /* SGID */ 154 int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res, 155 struct bnxt_qplib_sgid_tbl *sgid_tbl, int index, 156 struct bnxt_qplib_gid *gid) 157 { 158 if (index > sgid_tbl->max) { 159 dev_err(&res->pdev->dev, 160 "QPLIB: Index %d exceeded SGID table max (%d)", 161 index, sgid_tbl->max); 162 return -EINVAL; 163 } 164 memcpy(gid, &sgid_tbl->tbl[index], sizeof(*gid)); 165 return 0; 166 } 167 168 int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, 169 struct bnxt_qplib_gid *gid, bool update) 170 { 171 struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl, 172 struct bnxt_qplib_res, 173 sgid_tbl); 174 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 175 int index; 176 177 if (!sgid_tbl) { 178 dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated"); 179 return -EINVAL; 180 } 181 /* Do we need a sgid_lock here? */ 182 if (!sgid_tbl->active) { 183 dev_err(&res->pdev->dev, 184 "QPLIB: SGID table has no active entries"); 185 return -ENOMEM; 186 } 187 for (index = 0; index < sgid_tbl->max; index++) { 188 if (!memcmp(&sgid_tbl->tbl[index], gid, sizeof(*gid))) 189 break; 190 } 191 if (index == sgid_tbl->max) { 192 dev_warn(&res->pdev->dev, "GID not found in the SGID table"); 193 return 0; 194 } 195 /* Remove GID from the SGID table */ 196 if (update) { 197 struct cmdq_delete_gid req; 198 struct creq_delete_gid_resp resp; 199 u16 cmd_flags = 0; 200 int rc; 201 202 RCFW_CMD_PREP(req, DELETE_GID, cmd_flags); 203 if (sgid_tbl->hw_id[index] == 0xFFFF) { 204 dev_err(&res->pdev->dev, 205 "QPLIB: GID entry contains an invalid HW id"); 206 return -EINVAL; 207 } 208 req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]); 209 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 210 (void *)&resp, NULL, 0); 211 if (rc) 212 return rc; 213 } 214 memcpy(&sgid_tbl->tbl[index], &bnxt_qplib_gid_zero, 215 sizeof(bnxt_qplib_gid_zero)); 216 sgid_tbl->active--; 217 dev_dbg(&res->pdev->dev, 218 "QPLIB: SGID deleted hw_id[0x%x] = 0x%x active = 0x%x", 219 index, sgid_tbl->hw_id[index], sgid_tbl->active); 220 sgid_tbl->hw_id[index] = (u16)-1; 221 222 /* unlock */ 223 return 0; 224 } 225 226 int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, 227 struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id, 228 bool update, u32 *index) 229 { 230 struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl, 231 struct bnxt_qplib_res, 232 sgid_tbl); 233 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 234 int i, free_idx; 235 236 if (!sgid_tbl) { 237 dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated"); 238 return -EINVAL; 239 } 240 /* Do we need a sgid_lock here? */ 241 if (sgid_tbl->active == sgid_tbl->max) { 242 dev_err(&res->pdev->dev, "QPLIB: SGID table is full"); 243 return -ENOMEM; 244 } 245 free_idx = sgid_tbl->max; 246 for (i = 0; i < sgid_tbl->max; i++) { 247 if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid))) { 248 dev_dbg(&res->pdev->dev, 249 "QPLIB: SGID entry already exist in entry %d!", 250 i); 251 *index = i; 252 return -EALREADY; 253 } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero, 254 sizeof(bnxt_qplib_gid_zero)) && 255 free_idx == sgid_tbl->max) { 256 free_idx = i; 257 } 258 } 259 if (free_idx == sgid_tbl->max) { 260 dev_err(&res->pdev->dev, 261 "QPLIB: SGID table is FULL but count is not MAX??"); 262 return -ENOMEM; 263 } 264 if (update) { 265 struct cmdq_add_gid req; 266 struct creq_add_gid_resp resp; 267 u16 cmd_flags = 0; 268 u32 temp32[4]; 269 u16 temp16[3]; 270 int rc; 271 272 RCFW_CMD_PREP(req, ADD_GID, cmd_flags); 273 274 memcpy(temp32, gid->data, sizeof(struct bnxt_qplib_gid)); 275 req.gid[0] = cpu_to_be32(temp32[3]); 276 req.gid[1] = cpu_to_be32(temp32[2]); 277 req.gid[2] = cpu_to_be32(temp32[1]); 278 req.gid[3] = cpu_to_be32(temp32[0]); 279 if (vlan_id != 0xFFFF) 280 req.vlan = cpu_to_le16((vlan_id & 281 CMDQ_ADD_GID_VLAN_VLAN_ID_MASK) | 282 CMDQ_ADD_GID_VLAN_TPID_TPID_8100 | 283 CMDQ_ADD_GID_VLAN_VLAN_EN); 284 285 /* MAC in network format */ 286 memcpy(temp16, smac, 6); 287 req.src_mac[0] = cpu_to_be16(temp16[0]); 288 req.src_mac[1] = cpu_to_be16(temp16[1]); 289 req.src_mac[2] = cpu_to_be16(temp16[2]); 290 291 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 292 (void *)&resp, NULL, 0); 293 if (rc) 294 return rc; 295 sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid); 296 } 297 /* Add GID to the sgid_tbl */ 298 memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid)); 299 sgid_tbl->active++; 300 dev_dbg(&res->pdev->dev, 301 "QPLIB: SGID added hw_id[0x%x] = 0x%x active = 0x%x", 302 free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active); 303 304 *index = free_idx; 305 /* unlock */ 306 return 0; 307 } 308 309 /* pkeys */ 310 int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res, 311 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index, 312 u16 *pkey) 313 { 314 if (index == 0xFFFF) { 315 *pkey = 0xFFFF; 316 return 0; 317 } 318 if (index > pkey_tbl->max) { 319 dev_err(&res->pdev->dev, 320 "QPLIB: Index %d exceeded PKEY table max (%d)", 321 index, pkey_tbl->max); 322 return -EINVAL; 323 } 324 memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey)); 325 return 0; 326 } 327 328 int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res, 329 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey, 330 bool update) 331 { 332 int i, rc = 0; 333 334 if (!pkey_tbl) { 335 dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated"); 336 return -EINVAL; 337 } 338 339 /* Do we need a pkey_lock here? */ 340 if (!pkey_tbl->active) { 341 dev_err(&res->pdev->dev, 342 "QPLIB: PKEY table has no active entries"); 343 return -ENOMEM; 344 } 345 for (i = 0; i < pkey_tbl->max; i++) { 346 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey))) 347 break; 348 } 349 if (i == pkey_tbl->max) { 350 dev_err(&res->pdev->dev, 351 "QPLIB: PKEY 0x%04x not found in the pkey table", 352 *pkey); 353 return -ENOMEM; 354 } 355 memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey)); 356 pkey_tbl->active--; 357 358 /* unlock */ 359 return rc; 360 } 361 362 int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res, 363 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey, 364 bool update) 365 { 366 int i, free_idx, rc = 0; 367 368 if (!pkey_tbl) { 369 dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated"); 370 return -EINVAL; 371 } 372 373 /* Do we need a pkey_lock here? */ 374 if (pkey_tbl->active == pkey_tbl->max) { 375 dev_err(&res->pdev->dev, "QPLIB: PKEY table is full"); 376 return -ENOMEM; 377 } 378 free_idx = pkey_tbl->max; 379 for (i = 0; i < pkey_tbl->max; i++) { 380 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey))) 381 return -EALREADY; 382 else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max) 383 free_idx = i; 384 } 385 if (free_idx == pkey_tbl->max) { 386 dev_err(&res->pdev->dev, 387 "QPLIB: PKEY table is FULL but count is not MAX??"); 388 return -ENOMEM; 389 } 390 /* Add PKEY to the pkey_tbl */ 391 memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey)); 392 pkey_tbl->active++; 393 394 /* unlock */ 395 return rc; 396 } 397 398 /* AH */ 399 int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah) 400 { 401 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 402 struct cmdq_create_ah req; 403 struct creq_create_ah_resp resp; 404 u16 cmd_flags = 0; 405 u32 temp32[4]; 406 u16 temp16[3]; 407 int rc; 408 409 RCFW_CMD_PREP(req, CREATE_AH, cmd_flags); 410 411 memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid)); 412 req.dgid[0] = cpu_to_le32(temp32[0]); 413 req.dgid[1] = cpu_to_le32(temp32[1]); 414 req.dgid[2] = cpu_to_le32(temp32[2]); 415 req.dgid[3] = cpu_to_le32(temp32[3]); 416 417 req.type = ah->nw_type; 418 req.hop_limit = ah->hop_limit; 419 req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]); 420 req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label & 421 CMDQ_CREATE_AH_FLOW_LABEL_MASK) | 422 CMDQ_CREATE_AH_DEST_VLAN_ID_MASK); 423 req.pd_id = cpu_to_le32(ah->pd->id); 424 req.traffic_class = ah->traffic_class; 425 426 /* MAC in network format */ 427 memcpy(temp16, ah->dmac, 6); 428 req.dest_mac[0] = cpu_to_le16(temp16[0]); 429 req.dest_mac[1] = cpu_to_le16(temp16[1]); 430 req.dest_mac[2] = cpu_to_le16(temp16[2]); 431 432 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, 433 NULL, 1); 434 if (rc) 435 return rc; 436 437 ah->id = le32_to_cpu(resp.xid); 438 return 0; 439 } 440 441 int bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah) 442 { 443 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 444 struct cmdq_destroy_ah req; 445 struct creq_destroy_ah_resp resp; 446 u16 cmd_flags = 0; 447 int rc; 448 449 /* Clean up the AH table in the device */ 450 RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags); 451 452 req.ah_cid = cpu_to_le32(ah->id); 453 454 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, 455 NULL, 1); 456 if (rc) 457 return rc; 458 return 0; 459 } 460 461 /* MRW */ 462 int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw) 463 { 464 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 465 struct cmdq_deallocate_key req; 466 struct creq_deallocate_key_resp resp; 467 u16 cmd_flags = 0; 468 int rc; 469 470 if (mrw->lkey == 0xFFFFFFFF) { 471 dev_info(&res->pdev->dev, 472 "QPLIB: SP: Free a reserved lkey MRW"); 473 return 0; 474 } 475 476 RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags); 477 478 req.mrw_flags = mrw->type; 479 480 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) || 481 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) || 482 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)) 483 req.key = cpu_to_le32(mrw->rkey); 484 else 485 req.key = cpu_to_le32(mrw->lkey); 486 487 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, 488 NULL, 0); 489 if (rc) 490 return rc; 491 492 /* Free the qplib's MRW memory */ 493 if (mrw->hwq.max_elements) 494 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq); 495 496 return 0; 497 } 498 499 int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw) 500 { 501 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 502 struct cmdq_allocate_mrw req; 503 struct creq_allocate_mrw_resp resp; 504 u16 cmd_flags = 0; 505 unsigned long tmp; 506 int rc; 507 508 RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags); 509 510 req.pd_id = cpu_to_le32(mrw->pd->id); 511 req.mrw_flags = mrw->type; 512 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR && 513 mrw->flags & BNXT_QPLIB_FR_PMR) || 514 mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A || 515 mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B) 516 req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY; 517 tmp = (unsigned long)mrw; 518 req.mrw_handle = cpu_to_le64(tmp); 519 520 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 521 (void *)&resp, NULL, 0); 522 if (rc) 523 return rc; 524 525 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) || 526 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) || 527 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)) 528 mrw->rkey = le32_to_cpu(resp.xid); 529 else 530 mrw->lkey = le32_to_cpu(resp.xid); 531 return 0; 532 } 533 534 int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw, 535 bool block) 536 { 537 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 538 struct cmdq_deregister_mr req; 539 struct creq_deregister_mr_resp resp; 540 u16 cmd_flags = 0; 541 int rc; 542 543 RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags); 544 545 req.lkey = cpu_to_le32(mrw->lkey); 546 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 547 (void *)&resp, NULL, block); 548 if (rc) 549 return rc; 550 551 /* Free the qplib's MR memory */ 552 if (mrw->hwq.max_elements) { 553 mrw->va = 0; 554 mrw->total_size = 0; 555 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq); 556 } 557 558 return 0; 559 } 560 561 int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr, 562 u64 *pbl_tbl, int num_pbls, bool block) 563 { 564 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 565 struct cmdq_register_mr req; 566 struct creq_register_mr_resp resp; 567 u16 cmd_flags = 0, level; 568 int pg_ptrs, pages, i, rc; 569 dma_addr_t **pbl_ptr; 570 u32 pg_size; 571 572 if (num_pbls) { 573 pg_ptrs = roundup_pow_of_two(num_pbls); 574 pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT; 575 if (!pages) 576 pages++; 577 578 if (pages > MAX_PBL_LVL_1_PGS) { 579 dev_err(&res->pdev->dev, "QPLIB: SP: Reg MR pages "); 580 dev_err(&res->pdev->dev, 581 "requested (0x%x) exceeded max (0x%x)", 582 pages, MAX_PBL_LVL_1_PGS); 583 return -ENOMEM; 584 } 585 /* Free the hwq if it already exist, must be a rereg */ 586 if (mr->hwq.max_elements) 587 bnxt_qplib_free_hwq(res->pdev, &mr->hwq); 588 589 mr->hwq.max_elements = pages; 590 rc = bnxt_qplib_alloc_init_hwq(res->pdev, &mr->hwq, NULL, 0, 591 &mr->hwq.max_elements, 592 PAGE_SIZE, 0, PAGE_SIZE, 593 HWQ_TYPE_CTX); 594 if (rc) { 595 dev_err(&res->pdev->dev, 596 "SP: Reg MR memory allocation failed"); 597 return -ENOMEM; 598 } 599 /* Write to the hwq */ 600 pbl_ptr = (dma_addr_t **)mr->hwq.pbl_ptr; 601 for (i = 0; i < num_pbls; i++) 602 pbl_ptr[PTR_PG(i)][PTR_IDX(i)] = 603 (pbl_tbl[i] & PAGE_MASK) | PTU_PTE_VALID; 604 } 605 606 RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags); 607 608 /* Configure the request */ 609 if (mr->hwq.level == PBL_LVL_MAX) { 610 level = 0; 611 req.pbl = 0; 612 pg_size = PAGE_SIZE; 613 } else { 614 level = mr->hwq.level + 1; 615 req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]); 616 pg_size = mr->hwq.pbl[PBL_LVL_0].pg_size; 617 } 618 req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) | 619 ((ilog2(pg_size) << 620 CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) & 621 CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK); 622 req.access = (mr->flags & 0xFFFF); 623 req.va = cpu_to_le64(mr->va); 624 req.key = cpu_to_le32(mr->lkey); 625 req.mr_size = cpu_to_le64(mr->total_size); 626 627 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 628 (void *)&resp, NULL, block); 629 if (rc) 630 goto fail; 631 632 return 0; 633 634 fail: 635 if (mr->hwq.max_elements) 636 bnxt_qplib_free_hwq(res->pdev, &mr->hwq); 637 return rc; 638 } 639 640 int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res, 641 struct bnxt_qplib_frpl *frpl, 642 int max_pg_ptrs) 643 { 644 int pg_ptrs, pages, rc; 645 646 /* Re-calculate the max to fit the HWQ allocation model */ 647 pg_ptrs = roundup_pow_of_two(max_pg_ptrs); 648 pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT; 649 if (!pages) 650 pages++; 651 652 if (pages > MAX_PBL_LVL_1_PGS) 653 return -ENOMEM; 654 655 frpl->hwq.max_elements = pages; 656 rc = bnxt_qplib_alloc_init_hwq(res->pdev, &frpl->hwq, NULL, 0, 657 &frpl->hwq.max_elements, PAGE_SIZE, 0, 658 PAGE_SIZE, HWQ_TYPE_CTX); 659 if (!rc) 660 frpl->max_pg_ptrs = pg_ptrs; 661 662 return rc; 663 } 664 665 int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res, 666 struct bnxt_qplib_frpl *frpl) 667 { 668 bnxt_qplib_free_hwq(res->pdev, &frpl->hwq); 669 return 0; 670 } 671 672 int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids) 673 { 674 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 675 struct cmdq_map_tc_to_cos req; 676 struct creq_map_tc_to_cos_resp resp; 677 u16 cmd_flags = 0; 678 int rc = 0; 679 680 RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags); 681 req.cos0 = cpu_to_le16(cids[0]); 682 req.cos1 = cpu_to_le16(cids[1]); 683 684 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 685 (void *)&resp, NULL, 0); 686 return 0; 687 } 688