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->vlan[index] = 0; 217 sgid_tbl->active--; 218 dev_dbg(&res->pdev->dev, 219 "QPLIB: SGID deleted hw_id[0x%x] = 0x%x active = 0x%x", 220 index, sgid_tbl->hw_id[index], sgid_tbl->active); 221 sgid_tbl->hw_id[index] = (u16)-1; 222 223 /* unlock */ 224 return 0; 225 } 226 227 int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, 228 struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id, 229 bool update, u32 *index) 230 { 231 struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl, 232 struct bnxt_qplib_res, 233 sgid_tbl); 234 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 235 int i, free_idx; 236 237 if (!sgid_tbl) { 238 dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated"); 239 return -EINVAL; 240 } 241 /* Do we need a sgid_lock here? */ 242 if (sgid_tbl->active == sgid_tbl->max) { 243 dev_err(&res->pdev->dev, "QPLIB: SGID table is full"); 244 return -ENOMEM; 245 } 246 free_idx = sgid_tbl->max; 247 for (i = 0; i < sgid_tbl->max; i++) { 248 if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid))) { 249 dev_dbg(&res->pdev->dev, 250 "QPLIB: SGID entry already exist in entry %d!", 251 i); 252 *index = i; 253 return -EALREADY; 254 } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero, 255 sizeof(bnxt_qplib_gid_zero)) && 256 free_idx == sgid_tbl->max) { 257 free_idx = i; 258 } 259 } 260 if (free_idx == sgid_tbl->max) { 261 dev_err(&res->pdev->dev, 262 "QPLIB: SGID table is FULL but count is not MAX??"); 263 return -ENOMEM; 264 } 265 if (update) { 266 struct cmdq_add_gid req; 267 struct creq_add_gid_resp resp; 268 u16 cmd_flags = 0; 269 int rc; 270 271 RCFW_CMD_PREP(req, ADD_GID, cmd_flags); 272 273 req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]); 274 req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]); 275 req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]); 276 req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]); 277 /* 278 * driver should ensure that all RoCE traffic is always VLAN 279 * tagged if RoCE traffic is running on non-zero VLAN ID or 280 * RoCE traffic is running on non-zero Priority. 281 */ 282 if ((vlan_id != 0xFFFF) || res->prio) { 283 if (vlan_id != 0xFFFF) 284 req.vlan = cpu_to_le16 285 (vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK); 286 req.vlan |= cpu_to_le16 287 (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 | 288 CMDQ_ADD_GID_VLAN_VLAN_EN); 289 } 290 291 /* MAC in network format */ 292 req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]); 293 req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]); 294 req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]); 295 296 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 297 (void *)&resp, NULL, 0); 298 if (rc) 299 return rc; 300 sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid); 301 } 302 /* Add GID to the sgid_tbl */ 303 memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid)); 304 sgid_tbl->active++; 305 if (vlan_id != 0xFFFF) 306 sgid_tbl->vlan[free_idx] = 1; 307 308 dev_dbg(&res->pdev->dev, 309 "QPLIB: SGID added hw_id[0x%x] = 0x%x active = 0x%x", 310 free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active); 311 312 *index = free_idx; 313 /* unlock */ 314 return 0; 315 } 316 317 int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, 318 struct bnxt_qplib_gid *gid, u16 gid_idx, 319 u8 *smac) 320 { 321 struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl, 322 struct bnxt_qplib_res, 323 sgid_tbl); 324 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 325 struct creq_modify_gid_resp resp; 326 struct cmdq_modify_gid req; 327 int rc; 328 u16 cmd_flags = 0; 329 330 RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags); 331 332 req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]); 333 req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]); 334 req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]); 335 req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]); 336 if (res->prio) { 337 req.vlan |= cpu_to_le16 338 (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 | 339 CMDQ_ADD_GID_VLAN_VLAN_EN); 340 } 341 342 /* MAC in network format */ 343 req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]); 344 req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]); 345 req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]); 346 347 req.gid_index = cpu_to_le16(gid_idx); 348 349 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 350 (void *)&resp, NULL, 0); 351 return rc; 352 } 353 354 /* pkeys */ 355 int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res, 356 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index, 357 u16 *pkey) 358 { 359 if (index == 0xFFFF) { 360 *pkey = 0xFFFF; 361 return 0; 362 } 363 if (index > pkey_tbl->max) { 364 dev_err(&res->pdev->dev, 365 "QPLIB: Index %d exceeded PKEY table max (%d)", 366 index, pkey_tbl->max); 367 return -EINVAL; 368 } 369 memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey)); 370 return 0; 371 } 372 373 int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res, 374 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey, 375 bool update) 376 { 377 int i, rc = 0; 378 379 if (!pkey_tbl) { 380 dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated"); 381 return -EINVAL; 382 } 383 384 /* Do we need a pkey_lock here? */ 385 if (!pkey_tbl->active) { 386 dev_err(&res->pdev->dev, 387 "QPLIB: PKEY table has no active entries"); 388 return -ENOMEM; 389 } 390 for (i = 0; i < pkey_tbl->max; i++) { 391 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey))) 392 break; 393 } 394 if (i == pkey_tbl->max) { 395 dev_err(&res->pdev->dev, 396 "QPLIB: PKEY 0x%04x not found in the pkey table", 397 *pkey); 398 return -ENOMEM; 399 } 400 memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey)); 401 pkey_tbl->active--; 402 403 /* unlock */ 404 return rc; 405 } 406 407 int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res, 408 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey, 409 bool update) 410 { 411 int i, free_idx, rc = 0; 412 413 if (!pkey_tbl) { 414 dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated"); 415 return -EINVAL; 416 } 417 418 /* Do we need a pkey_lock here? */ 419 if (pkey_tbl->active == pkey_tbl->max) { 420 dev_err(&res->pdev->dev, "QPLIB: PKEY table is full"); 421 return -ENOMEM; 422 } 423 free_idx = pkey_tbl->max; 424 for (i = 0; i < pkey_tbl->max; i++) { 425 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey))) 426 return -EALREADY; 427 else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max) 428 free_idx = i; 429 } 430 if (free_idx == pkey_tbl->max) { 431 dev_err(&res->pdev->dev, 432 "QPLIB: PKEY table is FULL but count is not MAX??"); 433 return -ENOMEM; 434 } 435 /* Add PKEY to the pkey_tbl */ 436 memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey)); 437 pkey_tbl->active++; 438 439 /* unlock */ 440 return rc; 441 } 442 443 /* AH */ 444 int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah) 445 { 446 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 447 struct cmdq_create_ah req; 448 struct creq_create_ah_resp resp; 449 u16 cmd_flags = 0; 450 u32 temp32[4]; 451 u16 temp16[3]; 452 int rc; 453 454 RCFW_CMD_PREP(req, CREATE_AH, cmd_flags); 455 456 memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid)); 457 req.dgid[0] = cpu_to_le32(temp32[0]); 458 req.dgid[1] = cpu_to_le32(temp32[1]); 459 req.dgid[2] = cpu_to_le32(temp32[2]); 460 req.dgid[3] = cpu_to_le32(temp32[3]); 461 462 req.type = ah->nw_type; 463 req.hop_limit = ah->hop_limit; 464 req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]); 465 req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label & 466 CMDQ_CREATE_AH_FLOW_LABEL_MASK) | 467 CMDQ_CREATE_AH_DEST_VLAN_ID_MASK); 468 req.pd_id = cpu_to_le32(ah->pd->id); 469 req.traffic_class = ah->traffic_class; 470 471 /* MAC in network format */ 472 memcpy(temp16, ah->dmac, 6); 473 req.dest_mac[0] = cpu_to_le16(temp16[0]); 474 req.dest_mac[1] = cpu_to_le16(temp16[1]); 475 req.dest_mac[2] = cpu_to_le16(temp16[2]); 476 477 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, 478 NULL, 1); 479 if (rc) 480 return rc; 481 482 ah->id = le32_to_cpu(resp.xid); 483 return 0; 484 } 485 486 int bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah) 487 { 488 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 489 struct cmdq_destroy_ah req; 490 struct creq_destroy_ah_resp resp; 491 u16 cmd_flags = 0; 492 int rc; 493 494 /* Clean up the AH table in the device */ 495 RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags); 496 497 req.ah_cid = cpu_to_le32(ah->id); 498 499 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, 500 NULL, 1); 501 if (rc) 502 return rc; 503 return 0; 504 } 505 506 /* MRW */ 507 int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw) 508 { 509 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 510 struct cmdq_deallocate_key req; 511 struct creq_deallocate_key_resp resp; 512 u16 cmd_flags = 0; 513 int rc; 514 515 if (mrw->lkey == 0xFFFFFFFF) { 516 dev_info(&res->pdev->dev, 517 "QPLIB: SP: Free a reserved lkey MRW"); 518 return 0; 519 } 520 521 RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags); 522 523 req.mrw_flags = mrw->type; 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 req.key = cpu_to_le32(mrw->rkey); 529 else 530 req.key = cpu_to_le32(mrw->lkey); 531 532 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, 533 NULL, 0); 534 if (rc) 535 return rc; 536 537 /* Free the qplib's MRW memory */ 538 if (mrw->hwq.max_elements) 539 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq); 540 541 return 0; 542 } 543 544 int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw) 545 { 546 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 547 struct cmdq_allocate_mrw req; 548 struct creq_allocate_mrw_resp resp; 549 u16 cmd_flags = 0; 550 unsigned long tmp; 551 int rc; 552 553 RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags); 554 555 req.pd_id = cpu_to_le32(mrw->pd->id); 556 req.mrw_flags = mrw->type; 557 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR && 558 mrw->flags & BNXT_QPLIB_FR_PMR) || 559 mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A || 560 mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B) 561 req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY; 562 tmp = (unsigned long)mrw; 563 req.mrw_handle = cpu_to_le64(tmp); 564 565 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 566 (void *)&resp, NULL, 0); 567 if (rc) 568 return rc; 569 570 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) || 571 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) || 572 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)) 573 mrw->rkey = le32_to_cpu(resp.xid); 574 else 575 mrw->lkey = le32_to_cpu(resp.xid); 576 return 0; 577 } 578 579 int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw, 580 bool block) 581 { 582 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 583 struct cmdq_deregister_mr req; 584 struct creq_deregister_mr_resp resp; 585 u16 cmd_flags = 0; 586 int rc; 587 588 RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags); 589 590 req.lkey = cpu_to_le32(mrw->lkey); 591 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 592 (void *)&resp, NULL, block); 593 if (rc) 594 return rc; 595 596 /* Free the qplib's MR memory */ 597 if (mrw->hwq.max_elements) { 598 mrw->va = 0; 599 mrw->total_size = 0; 600 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq); 601 } 602 603 return 0; 604 } 605 606 int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr, 607 u64 *pbl_tbl, int num_pbls, bool block) 608 { 609 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 610 struct cmdq_register_mr req; 611 struct creq_register_mr_resp resp; 612 u16 cmd_flags = 0, level; 613 int pg_ptrs, pages, i, rc; 614 dma_addr_t **pbl_ptr; 615 u32 pg_size; 616 617 if (num_pbls) { 618 pg_ptrs = roundup_pow_of_two(num_pbls); 619 pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT; 620 if (!pages) 621 pages++; 622 623 if (pages > MAX_PBL_LVL_1_PGS) { 624 dev_err(&res->pdev->dev, "QPLIB: SP: Reg MR pages "); 625 dev_err(&res->pdev->dev, 626 "requested (0x%x) exceeded max (0x%x)", 627 pages, MAX_PBL_LVL_1_PGS); 628 return -ENOMEM; 629 } 630 /* Free the hwq if it already exist, must be a rereg */ 631 if (mr->hwq.max_elements) 632 bnxt_qplib_free_hwq(res->pdev, &mr->hwq); 633 634 mr->hwq.max_elements = pages; 635 rc = bnxt_qplib_alloc_init_hwq(res->pdev, &mr->hwq, NULL, 0, 636 &mr->hwq.max_elements, 637 PAGE_SIZE, 0, PAGE_SIZE, 638 HWQ_TYPE_CTX); 639 if (rc) { 640 dev_err(&res->pdev->dev, 641 "SP: Reg MR memory allocation failed"); 642 return -ENOMEM; 643 } 644 /* Write to the hwq */ 645 pbl_ptr = (dma_addr_t **)mr->hwq.pbl_ptr; 646 for (i = 0; i < num_pbls; i++) 647 pbl_ptr[PTR_PG(i)][PTR_IDX(i)] = 648 (pbl_tbl[i] & PAGE_MASK) | PTU_PTE_VALID; 649 } 650 651 RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags); 652 653 /* Configure the request */ 654 if (mr->hwq.level == PBL_LVL_MAX) { 655 level = 0; 656 req.pbl = 0; 657 pg_size = PAGE_SIZE; 658 } else { 659 level = mr->hwq.level + 1; 660 req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]); 661 pg_size = mr->hwq.pbl[PBL_LVL_0].pg_size; 662 } 663 req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) | 664 ((ilog2(pg_size) << 665 CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) & 666 CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK); 667 req.access = (mr->flags & 0xFFFF); 668 req.va = cpu_to_le64(mr->va); 669 req.key = cpu_to_le32(mr->lkey); 670 req.mr_size = cpu_to_le64(mr->total_size); 671 672 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 673 (void *)&resp, NULL, block); 674 if (rc) 675 goto fail; 676 677 return 0; 678 679 fail: 680 if (mr->hwq.max_elements) 681 bnxt_qplib_free_hwq(res->pdev, &mr->hwq); 682 return rc; 683 } 684 685 int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res, 686 struct bnxt_qplib_frpl *frpl, 687 int max_pg_ptrs) 688 { 689 int pg_ptrs, pages, rc; 690 691 /* Re-calculate the max to fit the HWQ allocation model */ 692 pg_ptrs = roundup_pow_of_two(max_pg_ptrs); 693 pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT; 694 if (!pages) 695 pages++; 696 697 if (pages > MAX_PBL_LVL_1_PGS) 698 return -ENOMEM; 699 700 frpl->hwq.max_elements = pages; 701 rc = bnxt_qplib_alloc_init_hwq(res->pdev, &frpl->hwq, NULL, 0, 702 &frpl->hwq.max_elements, PAGE_SIZE, 0, 703 PAGE_SIZE, HWQ_TYPE_CTX); 704 if (!rc) 705 frpl->max_pg_ptrs = pg_ptrs; 706 707 return rc; 708 } 709 710 int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res, 711 struct bnxt_qplib_frpl *frpl) 712 { 713 bnxt_qplib_free_hwq(res->pdev, &frpl->hwq); 714 return 0; 715 } 716 717 int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids) 718 { 719 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 720 struct cmdq_map_tc_to_cos req; 721 struct creq_map_tc_to_cos_resp resp; 722 u16 cmd_flags = 0; 723 int rc = 0; 724 725 RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags); 726 req.cos0 = cpu_to_le16(cids[0]); 727 req.cos1 = cpu_to_le16(cids[1]); 728 729 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 730 (void *)&resp, NULL, 0); 731 return 0; 732 } 733