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