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 void bnxt_qplib_query_version(struct bnxt_qplib_rcfw *rcfw, 56 char *fw_ver) 57 { 58 struct cmdq_query_version req; 59 struct creq_query_version_resp resp; 60 u16 cmd_flags = 0; 61 int rc = 0; 62 63 RCFW_CMD_PREP(req, QUERY_VERSION, cmd_flags); 64 65 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 66 (void *)&resp, NULL, 0); 67 if (rc) 68 return; 69 fw_ver[0] = resp.fw_maj; 70 fw_ver[1] = resp.fw_minor; 71 fw_ver[2] = resp.fw_bld; 72 fw_ver[3] = resp.fw_rsvd; 73 } 74 75 int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw, 76 struct bnxt_qplib_dev_attr *attr, bool vf) 77 { 78 struct cmdq_query_func req; 79 struct creq_query_func_resp resp; 80 struct bnxt_qplib_rcfw_sbuf *sbuf; 81 struct creq_query_func_resp_sb *sb; 82 u16 cmd_flags = 0; 83 u32 temp; 84 u8 *tqm_alloc; 85 int i, rc = 0; 86 87 RCFW_CMD_PREP(req, QUERY_FUNC, cmd_flags); 88 89 sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb)); 90 if (!sbuf) { 91 dev_err(&rcfw->pdev->dev, 92 "QPLIB: SP: QUERY_FUNC alloc side buffer failed"); 93 return -ENOMEM; 94 } 95 96 sb = sbuf->sb; 97 req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS; 98 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, 99 (void *)sbuf, 0); 100 if (rc) 101 goto bail; 102 103 /* Extract the context from the side buffer */ 104 attr->max_qp = le32_to_cpu(sb->max_qp); 105 /* max_qp value reported by FW for PF doesn't include the QP1 for PF */ 106 if (!vf) 107 attr->max_qp += 1; 108 attr->max_qp_rd_atom = 109 sb->max_qp_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ? 110 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_rd_atom; 111 attr->max_qp_init_rd_atom = 112 sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ? 113 BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom; 114 attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr); 115 /* 116 * 128 WQEs needs to be reserved for the HW (8916). Prevent 117 * reporting the max number 118 */ 119 attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS; 120 attr->max_qp_sges = sb->max_sge; 121 attr->max_cq = le32_to_cpu(sb->max_cq); 122 attr->max_cq_wqes = le32_to_cpu(sb->max_cqe); 123 attr->max_cq_sges = attr->max_qp_sges; 124 attr->max_mr = le32_to_cpu(sb->max_mr); 125 attr->max_mw = le32_to_cpu(sb->max_mw); 126 127 attr->max_mr_size = le64_to_cpu(sb->max_mr_size); 128 attr->max_pd = 64 * 1024; 129 attr->max_raw_ethy_qp = le32_to_cpu(sb->max_raw_eth_qp); 130 attr->max_ah = le32_to_cpu(sb->max_ah); 131 132 attr->max_fmr = le32_to_cpu(sb->max_fmr); 133 attr->max_map_per_fmr = sb->max_map_per_fmr; 134 135 attr->max_srq = le16_to_cpu(sb->max_srq); 136 attr->max_srq_wqes = le32_to_cpu(sb->max_srq_wr) - 1; 137 attr->max_srq_sges = sb->max_srq_sge; 138 /* Bono only reports 1 PKEY for now, but it can support > 1 */ 139 attr->max_pkey = le32_to_cpu(sb->max_pkeys); 140 141 attr->max_inline_data = le32_to_cpu(sb->max_inline_data); 142 attr->l2_db_size = (sb->l2_db_space_size + 1) * PAGE_SIZE; 143 attr->max_sgid = le32_to_cpu(sb->max_gid); 144 145 bnxt_qplib_query_version(rcfw, attr->fw_ver); 146 147 for (i = 0; i < MAX_TQM_ALLOC_REQ / 4; i++) { 148 temp = le32_to_cpu(sb->tqm_alloc_reqs[i]); 149 tqm_alloc = (u8 *)&temp; 150 attr->tqm_alloc_reqs[i * 4] = *tqm_alloc; 151 attr->tqm_alloc_reqs[i * 4 + 1] = *(++tqm_alloc); 152 attr->tqm_alloc_reqs[i * 4 + 2] = *(++tqm_alloc); 153 attr->tqm_alloc_reqs[i * 4 + 3] = *(++tqm_alloc); 154 } 155 156 attr->is_atomic = 0; 157 bail: 158 bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf); 159 return rc; 160 } 161 162 int bnxt_qplib_set_func_resources(struct bnxt_qplib_res *res, 163 struct bnxt_qplib_rcfw *rcfw, 164 struct bnxt_qplib_ctx *ctx) 165 { 166 struct cmdq_set_func_resources req; 167 struct creq_set_func_resources_resp resp; 168 u16 cmd_flags = 0; 169 int rc = 0; 170 171 RCFW_CMD_PREP(req, SET_FUNC_RESOURCES, cmd_flags); 172 173 req.number_of_qp = cpu_to_le32(ctx->qpc_count); 174 req.number_of_mrw = cpu_to_le32(ctx->mrw_count); 175 req.number_of_srq = cpu_to_le32(ctx->srqc_count); 176 req.number_of_cq = cpu_to_le32(ctx->cq_count); 177 178 req.max_qp_per_vf = cpu_to_le32(ctx->vf_res.max_qp_per_vf); 179 req.max_mrw_per_vf = cpu_to_le32(ctx->vf_res.max_mrw_per_vf); 180 req.max_srq_per_vf = cpu_to_le32(ctx->vf_res.max_srq_per_vf); 181 req.max_cq_per_vf = cpu_to_le32(ctx->vf_res.max_cq_per_vf); 182 req.max_gid_per_vf = cpu_to_le32(ctx->vf_res.max_gid_per_vf); 183 184 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 185 (void *)&resp, 186 NULL, 0); 187 if (rc) { 188 dev_err(&res->pdev->dev, 189 "QPLIB: Failed to set function resources"); 190 } 191 return rc; 192 } 193 194 /* SGID */ 195 int bnxt_qplib_get_sgid(struct bnxt_qplib_res *res, 196 struct bnxt_qplib_sgid_tbl *sgid_tbl, int index, 197 struct bnxt_qplib_gid *gid) 198 { 199 if (index > sgid_tbl->max) { 200 dev_err(&res->pdev->dev, 201 "QPLIB: Index %d exceeded SGID table max (%d)", 202 index, sgid_tbl->max); 203 return -EINVAL; 204 } 205 memcpy(gid, &sgid_tbl->tbl[index], sizeof(*gid)); 206 return 0; 207 } 208 209 int bnxt_qplib_del_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, 210 struct bnxt_qplib_gid *gid, bool update) 211 { 212 struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl, 213 struct bnxt_qplib_res, 214 sgid_tbl); 215 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 216 int index; 217 218 if (!sgid_tbl) { 219 dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated"); 220 return -EINVAL; 221 } 222 /* Do we need a sgid_lock here? */ 223 if (!sgid_tbl->active) { 224 dev_err(&res->pdev->dev, 225 "QPLIB: SGID table has no active entries"); 226 return -ENOMEM; 227 } 228 for (index = 0; index < sgid_tbl->max; index++) { 229 if (!memcmp(&sgid_tbl->tbl[index], gid, sizeof(*gid))) 230 break; 231 } 232 if (index == sgid_tbl->max) { 233 dev_warn(&res->pdev->dev, "GID not found in the SGID table"); 234 return 0; 235 } 236 /* Remove GID from the SGID table */ 237 if (update) { 238 struct cmdq_delete_gid req; 239 struct creq_delete_gid_resp resp; 240 u16 cmd_flags = 0; 241 int rc; 242 243 RCFW_CMD_PREP(req, DELETE_GID, cmd_flags); 244 if (sgid_tbl->hw_id[index] == 0xFFFF) { 245 dev_err(&res->pdev->dev, 246 "QPLIB: GID entry contains an invalid HW id"); 247 return -EINVAL; 248 } 249 req.gid_index = cpu_to_le16(sgid_tbl->hw_id[index]); 250 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 251 (void *)&resp, NULL, 0); 252 if (rc) 253 return rc; 254 } 255 memcpy(&sgid_tbl->tbl[index], &bnxt_qplib_gid_zero, 256 sizeof(bnxt_qplib_gid_zero)); 257 sgid_tbl->vlan[index] = 0; 258 sgid_tbl->active--; 259 dev_dbg(&res->pdev->dev, 260 "QPLIB: SGID deleted hw_id[0x%x] = 0x%x active = 0x%x", 261 index, sgid_tbl->hw_id[index], sgid_tbl->active); 262 sgid_tbl->hw_id[index] = (u16)-1; 263 264 /* unlock */ 265 return 0; 266 } 267 268 int bnxt_qplib_add_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, 269 struct bnxt_qplib_gid *gid, u8 *smac, u16 vlan_id, 270 bool update, u32 *index) 271 { 272 struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl, 273 struct bnxt_qplib_res, 274 sgid_tbl); 275 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 276 int i, free_idx; 277 278 if (!sgid_tbl) { 279 dev_err(&res->pdev->dev, "QPLIB: SGID table not allocated"); 280 return -EINVAL; 281 } 282 /* Do we need a sgid_lock here? */ 283 if (sgid_tbl->active == sgid_tbl->max) { 284 dev_err(&res->pdev->dev, "QPLIB: SGID table is full"); 285 return -ENOMEM; 286 } 287 free_idx = sgid_tbl->max; 288 for (i = 0; i < sgid_tbl->max; i++) { 289 if (!memcmp(&sgid_tbl->tbl[i], gid, sizeof(*gid))) { 290 dev_dbg(&res->pdev->dev, 291 "QPLIB: SGID entry already exist in entry %d!", 292 i); 293 *index = i; 294 return -EALREADY; 295 } else if (!memcmp(&sgid_tbl->tbl[i], &bnxt_qplib_gid_zero, 296 sizeof(bnxt_qplib_gid_zero)) && 297 free_idx == sgid_tbl->max) { 298 free_idx = i; 299 } 300 } 301 if (free_idx == sgid_tbl->max) { 302 dev_err(&res->pdev->dev, 303 "QPLIB: SGID table is FULL but count is not MAX??"); 304 return -ENOMEM; 305 } 306 if (update) { 307 struct cmdq_add_gid req; 308 struct creq_add_gid_resp resp; 309 u16 cmd_flags = 0; 310 int rc; 311 312 RCFW_CMD_PREP(req, ADD_GID, cmd_flags); 313 314 req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]); 315 req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]); 316 req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]); 317 req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]); 318 /* 319 * driver should ensure that all RoCE traffic is always VLAN 320 * tagged if RoCE traffic is running on non-zero VLAN ID or 321 * RoCE traffic is running on non-zero Priority. 322 */ 323 if ((vlan_id != 0xFFFF) || res->prio) { 324 if (vlan_id != 0xFFFF) 325 req.vlan = cpu_to_le16 326 (vlan_id & CMDQ_ADD_GID_VLAN_VLAN_ID_MASK); 327 req.vlan |= cpu_to_le16 328 (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 | 329 CMDQ_ADD_GID_VLAN_VLAN_EN); 330 } 331 332 /* MAC in network format */ 333 req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]); 334 req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]); 335 req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]); 336 337 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 338 (void *)&resp, NULL, 0); 339 if (rc) 340 return rc; 341 sgid_tbl->hw_id[free_idx] = le32_to_cpu(resp.xid); 342 } 343 /* Add GID to the sgid_tbl */ 344 memcpy(&sgid_tbl->tbl[free_idx], gid, sizeof(*gid)); 345 sgid_tbl->active++; 346 if (vlan_id != 0xFFFF) 347 sgid_tbl->vlan[free_idx] = 1; 348 349 dev_dbg(&res->pdev->dev, 350 "QPLIB: SGID added hw_id[0x%x] = 0x%x active = 0x%x", 351 free_idx, sgid_tbl->hw_id[free_idx], sgid_tbl->active); 352 353 *index = free_idx; 354 /* unlock */ 355 return 0; 356 } 357 358 int bnxt_qplib_update_sgid(struct bnxt_qplib_sgid_tbl *sgid_tbl, 359 struct bnxt_qplib_gid *gid, u16 gid_idx, 360 u8 *smac) 361 { 362 struct bnxt_qplib_res *res = to_bnxt_qplib(sgid_tbl, 363 struct bnxt_qplib_res, 364 sgid_tbl); 365 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 366 struct creq_modify_gid_resp resp; 367 struct cmdq_modify_gid req; 368 int rc; 369 u16 cmd_flags = 0; 370 371 RCFW_CMD_PREP(req, MODIFY_GID, cmd_flags); 372 373 req.gid[0] = cpu_to_be32(((u32 *)gid->data)[3]); 374 req.gid[1] = cpu_to_be32(((u32 *)gid->data)[2]); 375 req.gid[2] = cpu_to_be32(((u32 *)gid->data)[1]); 376 req.gid[3] = cpu_to_be32(((u32 *)gid->data)[0]); 377 if (res->prio) { 378 req.vlan |= cpu_to_le16 379 (CMDQ_ADD_GID_VLAN_TPID_TPID_8100 | 380 CMDQ_ADD_GID_VLAN_VLAN_EN); 381 } 382 383 /* MAC in network format */ 384 req.src_mac[0] = cpu_to_be16(((u16 *)smac)[0]); 385 req.src_mac[1] = cpu_to_be16(((u16 *)smac)[1]); 386 req.src_mac[2] = cpu_to_be16(((u16 *)smac)[2]); 387 388 req.gid_index = cpu_to_le16(gid_idx); 389 390 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 391 (void *)&resp, NULL, 0); 392 return rc; 393 } 394 395 /* pkeys */ 396 int bnxt_qplib_get_pkey(struct bnxt_qplib_res *res, 397 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 index, 398 u16 *pkey) 399 { 400 if (index == 0xFFFF) { 401 *pkey = 0xFFFF; 402 return 0; 403 } 404 if (index > pkey_tbl->max) { 405 dev_err(&res->pdev->dev, 406 "QPLIB: Index %d exceeded PKEY table max (%d)", 407 index, pkey_tbl->max); 408 return -EINVAL; 409 } 410 memcpy(pkey, &pkey_tbl->tbl[index], sizeof(*pkey)); 411 return 0; 412 } 413 414 int bnxt_qplib_del_pkey(struct bnxt_qplib_res *res, 415 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey, 416 bool update) 417 { 418 int i, rc = 0; 419 420 if (!pkey_tbl) { 421 dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated"); 422 return -EINVAL; 423 } 424 425 /* Do we need a pkey_lock here? */ 426 if (!pkey_tbl->active) { 427 dev_err(&res->pdev->dev, 428 "QPLIB: PKEY table has no active entries"); 429 return -ENOMEM; 430 } 431 for (i = 0; i < pkey_tbl->max; i++) { 432 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey))) 433 break; 434 } 435 if (i == pkey_tbl->max) { 436 dev_err(&res->pdev->dev, 437 "QPLIB: PKEY 0x%04x not found in the pkey table", 438 *pkey); 439 return -ENOMEM; 440 } 441 memset(&pkey_tbl->tbl[i], 0, sizeof(*pkey)); 442 pkey_tbl->active--; 443 444 /* unlock */ 445 return rc; 446 } 447 448 int bnxt_qplib_add_pkey(struct bnxt_qplib_res *res, 449 struct bnxt_qplib_pkey_tbl *pkey_tbl, u16 *pkey, 450 bool update) 451 { 452 int i, free_idx, rc = 0; 453 454 if (!pkey_tbl) { 455 dev_err(&res->pdev->dev, "QPLIB: PKEY table not allocated"); 456 return -EINVAL; 457 } 458 459 /* Do we need a pkey_lock here? */ 460 if (pkey_tbl->active == pkey_tbl->max) { 461 dev_err(&res->pdev->dev, "QPLIB: PKEY table is full"); 462 return -ENOMEM; 463 } 464 free_idx = pkey_tbl->max; 465 for (i = 0; i < pkey_tbl->max; i++) { 466 if (!memcmp(&pkey_tbl->tbl[i], pkey, sizeof(*pkey))) 467 return -EALREADY; 468 else if (!pkey_tbl->tbl[i] && free_idx == pkey_tbl->max) 469 free_idx = i; 470 } 471 if (free_idx == pkey_tbl->max) { 472 dev_err(&res->pdev->dev, 473 "QPLIB: PKEY table is FULL but count is not MAX??"); 474 return -ENOMEM; 475 } 476 /* Add PKEY to the pkey_tbl */ 477 memcpy(&pkey_tbl->tbl[free_idx], pkey, sizeof(*pkey)); 478 pkey_tbl->active++; 479 480 /* unlock */ 481 return rc; 482 } 483 484 /* AH */ 485 int bnxt_qplib_create_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah) 486 { 487 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 488 struct cmdq_create_ah req; 489 struct creq_create_ah_resp resp; 490 u16 cmd_flags = 0; 491 u32 temp32[4]; 492 u16 temp16[3]; 493 int rc; 494 495 RCFW_CMD_PREP(req, CREATE_AH, cmd_flags); 496 497 memcpy(temp32, ah->dgid.data, sizeof(struct bnxt_qplib_gid)); 498 req.dgid[0] = cpu_to_le32(temp32[0]); 499 req.dgid[1] = cpu_to_le32(temp32[1]); 500 req.dgid[2] = cpu_to_le32(temp32[2]); 501 req.dgid[3] = cpu_to_le32(temp32[3]); 502 503 req.type = ah->nw_type; 504 req.hop_limit = ah->hop_limit; 505 req.sgid_index = cpu_to_le16(res->sgid_tbl.hw_id[ah->sgid_index]); 506 req.dest_vlan_id_flow_label = cpu_to_le32((ah->flow_label & 507 CMDQ_CREATE_AH_FLOW_LABEL_MASK) | 508 CMDQ_CREATE_AH_DEST_VLAN_ID_MASK); 509 req.pd_id = cpu_to_le32(ah->pd->id); 510 req.traffic_class = ah->traffic_class; 511 512 /* MAC in network format */ 513 memcpy(temp16, ah->dmac, 6); 514 req.dest_mac[0] = cpu_to_le16(temp16[0]); 515 req.dest_mac[1] = cpu_to_le16(temp16[1]); 516 req.dest_mac[2] = cpu_to_le16(temp16[2]); 517 518 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, 519 NULL, 1); 520 if (rc) 521 return rc; 522 523 ah->id = le32_to_cpu(resp.xid); 524 return 0; 525 } 526 527 int bnxt_qplib_destroy_ah(struct bnxt_qplib_res *res, struct bnxt_qplib_ah *ah) 528 { 529 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 530 struct cmdq_destroy_ah req; 531 struct creq_destroy_ah_resp resp; 532 u16 cmd_flags = 0; 533 int rc; 534 535 /* Clean up the AH table in the device */ 536 RCFW_CMD_PREP(req, DESTROY_AH, cmd_flags); 537 538 req.ah_cid = cpu_to_le32(ah->id); 539 540 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, 541 NULL, 1); 542 if (rc) 543 return rc; 544 return 0; 545 } 546 547 /* MRW */ 548 int bnxt_qplib_free_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw) 549 { 550 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 551 struct cmdq_deallocate_key req; 552 struct creq_deallocate_key_resp resp; 553 u16 cmd_flags = 0; 554 int rc; 555 556 if (mrw->lkey == 0xFFFFFFFF) { 557 dev_info(&res->pdev->dev, 558 "QPLIB: SP: Free a reserved lkey MRW"); 559 return 0; 560 } 561 562 RCFW_CMD_PREP(req, DEALLOCATE_KEY, cmd_flags); 563 564 req.mrw_flags = mrw->type; 565 566 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) || 567 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) || 568 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)) 569 req.key = cpu_to_le32(mrw->rkey); 570 else 571 req.key = cpu_to_le32(mrw->lkey); 572 573 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, 574 NULL, 0); 575 if (rc) 576 return rc; 577 578 /* Free the qplib's MRW memory */ 579 if (mrw->hwq.max_elements) 580 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq); 581 582 return 0; 583 } 584 585 int bnxt_qplib_alloc_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw) 586 { 587 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 588 struct cmdq_allocate_mrw req; 589 struct creq_allocate_mrw_resp resp; 590 u16 cmd_flags = 0; 591 unsigned long tmp; 592 int rc; 593 594 RCFW_CMD_PREP(req, ALLOCATE_MRW, cmd_flags); 595 596 req.pd_id = cpu_to_le32(mrw->pd->id); 597 req.mrw_flags = mrw->type; 598 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_PMR && 599 mrw->flags & BNXT_QPLIB_FR_PMR) || 600 mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A || 601 mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B) 602 req.access = CMDQ_ALLOCATE_MRW_ACCESS_CONSUMER_OWNED_KEY; 603 tmp = (unsigned long)mrw; 604 req.mrw_handle = cpu_to_le64(tmp); 605 606 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 607 (void *)&resp, NULL, 0); 608 if (rc) 609 return rc; 610 611 if ((mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE1) || 612 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2A) || 613 (mrw->type == CMDQ_ALLOCATE_MRW_MRW_FLAGS_MW_TYPE2B)) 614 mrw->rkey = le32_to_cpu(resp.xid); 615 else 616 mrw->lkey = le32_to_cpu(resp.xid); 617 return 0; 618 } 619 620 int bnxt_qplib_dereg_mrw(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mrw, 621 bool block) 622 { 623 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 624 struct cmdq_deregister_mr req; 625 struct creq_deregister_mr_resp resp; 626 u16 cmd_flags = 0; 627 int rc; 628 629 RCFW_CMD_PREP(req, DEREGISTER_MR, cmd_flags); 630 631 req.lkey = cpu_to_le32(mrw->lkey); 632 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 633 (void *)&resp, NULL, block); 634 if (rc) 635 return rc; 636 637 /* Free the qplib's MR memory */ 638 if (mrw->hwq.max_elements) { 639 mrw->va = 0; 640 mrw->total_size = 0; 641 bnxt_qplib_free_hwq(res->pdev, &mrw->hwq); 642 } 643 644 return 0; 645 } 646 647 int bnxt_qplib_reg_mr(struct bnxt_qplib_res *res, struct bnxt_qplib_mrw *mr, 648 u64 *pbl_tbl, int num_pbls, bool block, u32 buf_pg_size) 649 { 650 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 651 struct cmdq_register_mr req; 652 struct creq_register_mr_resp resp; 653 u16 cmd_flags = 0, level; 654 int pg_ptrs, pages, i, rc; 655 dma_addr_t **pbl_ptr; 656 u32 pg_size; 657 658 if (num_pbls) { 659 /* Allocate memory for the non-leaf pages to store buf ptrs. 660 * Non-leaf pages always uses system PAGE_SIZE 661 */ 662 pg_ptrs = roundup_pow_of_two(num_pbls); 663 pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT; 664 if (!pages) 665 pages++; 666 667 if (pages > MAX_PBL_LVL_1_PGS) { 668 dev_err(&res->pdev->dev, "QPLIB: SP: Reg MR pages "); 669 dev_err(&res->pdev->dev, 670 "requested (0x%x) exceeded max (0x%x)", 671 pages, MAX_PBL_LVL_1_PGS); 672 return -ENOMEM; 673 } 674 /* Free the hwq if it already exist, must be a rereg */ 675 if (mr->hwq.max_elements) 676 bnxt_qplib_free_hwq(res->pdev, &mr->hwq); 677 678 mr->hwq.max_elements = pages; 679 /* Use system PAGE_SIZE */ 680 rc = bnxt_qplib_alloc_init_hwq(res->pdev, &mr->hwq, NULL, 0, 681 &mr->hwq.max_elements, 682 PAGE_SIZE, 0, PAGE_SIZE, 683 HWQ_TYPE_CTX); 684 if (rc) { 685 dev_err(&res->pdev->dev, 686 "SP: Reg MR memory allocation failed"); 687 return -ENOMEM; 688 } 689 /* Write to the hwq */ 690 pbl_ptr = (dma_addr_t **)mr->hwq.pbl_ptr; 691 for (i = 0; i < num_pbls; i++) 692 pbl_ptr[PTR_PG(i)][PTR_IDX(i)] = 693 (pbl_tbl[i] & PAGE_MASK) | PTU_PTE_VALID; 694 } 695 696 RCFW_CMD_PREP(req, REGISTER_MR, cmd_flags); 697 698 /* Configure the request */ 699 if (mr->hwq.level == PBL_LVL_MAX) { 700 /* No PBL provided, just use system PAGE_SIZE */ 701 level = 0; 702 req.pbl = 0; 703 pg_size = PAGE_SIZE; 704 } else { 705 level = mr->hwq.level + 1; 706 req.pbl = cpu_to_le64(mr->hwq.pbl[PBL_LVL_0].pg_map_arr[0]); 707 } 708 pg_size = buf_pg_size ? buf_pg_size : PAGE_SIZE; 709 req.log2_pg_size_lvl = (level << CMDQ_REGISTER_MR_LVL_SFT) | 710 ((ilog2(pg_size) << 711 CMDQ_REGISTER_MR_LOG2_PG_SIZE_SFT) & 712 CMDQ_REGISTER_MR_LOG2_PG_SIZE_MASK); 713 req.log2_pbl_pg_size = cpu_to_le16(((ilog2(PAGE_SIZE) << 714 CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_SFT) & 715 CMDQ_REGISTER_MR_LOG2_PBL_PG_SIZE_MASK)); 716 req.access = (mr->flags & 0xFFFF); 717 req.va = cpu_to_le64(mr->va); 718 req.key = cpu_to_le32(mr->lkey); 719 req.mr_size = cpu_to_le64(mr->total_size); 720 721 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, 722 (void *)&resp, NULL, block); 723 if (rc) 724 goto fail; 725 726 return 0; 727 728 fail: 729 if (mr->hwq.max_elements) 730 bnxt_qplib_free_hwq(res->pdev, &mr->hwq); 731 return rc; 732 } 733 734 int bnxt_qplib_alloc_fast_reg_page_list(struct bnxt_qplib_res *res, 735 struct bnxt_qplib_frpl *frpl, 736 int max_pg_ptrs) 737 { 738 int pg_ptrs, pages, rc; 739 740 /* Re-calculate the max to fit the HWQ allocation model */ 741 pg_ptrs = roundup_pow_of_two(max_pg_ptrs); 742 pages = pg_ptrs >> MAX_PBL_LVL_1_PGS_SHIFT; 743 if (!pages) 744 pages++; 745 746 if (pages > MAX_PBL_LVL_1_PGS) 747 return -ENOMEM; 748 749 frpl->hwq.max_elements = pages; 750 rc = bnxt_qplib_alloc_init_hwq(res->pdev, &frpl->hwq, NULL, 0, 751 &frpl->hwq.max_elements, PAGE_SIZE, 0, 752 PAGE_SIZE, HWQ_TYPE_CTX); 753 if (!rc) 754 frpl->max_pg_ptrs = pg_ptrs; 755 756 return rc; 757 } 758 759 int bnxt_qplib_free_fast_reg_page_list(struct bnxt_qplib_res *res, 760 struct bnxt_qplib_frpl *frpl) 761 { 762 bnxt_qplib_free_hwq(res->pdev, &frpl->hwq); 763 return 0; 764 } 765 766 int bnxt_qplib_map_tc2cos(struct bnxt_qplib_res *res, u16 *cids) 767 { 768 struct bnxt_qplib_rcfw *rcfw = res->rcfw; 769 struct cmdq_map_tc_to_cos req; 770 struct creq_map_tc_to_cos_resp resp; 771 u16 cmd_flags = 0; 772 773 RCFW_CMD_PREP(req, MAP_TC_TO_COS, cmd_flags); 774 req.cos0 = cpu_to_le16(cids[0]); 775 req.cos1 = cpu_to_le16(cids[1]); 776 777 bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, NULL, 778 0); 779 return 0; 780 } 781 782 int bnxt_qplib_get_roce_stats(struct bnxt_qplib_rcfw *rcfw, 783 struct bnxt_qplib_roce_stats *stats) 784 { 785 struct cmdq_query_roce_stats req; 786 struct creq_query_roce_stats_resp resp; 787 struct bnxt_qplib_rcfw_sbuf *sbuf; 788 struct creq_query_roce_stats_resp_sb *sb; 789 u16 cmd_flags = 0; 790 int rc = 0; 791 792 RCFW_CMD_PREP(req, QUERY_ROCE_STATS, cmd_flags); 793 794 sbuf = bnxt_qplib_rcfw_alloc_sbuf(rcfw, sizeof(*sb)); 795 if (!sbuf) { 796 dev_err(&rcfw->pdev->dev, 797 "QPLIB: SP: QUERY_ROCE_STATS alloc side buffer failed"); 798 return -ENOMEM; 799 } 800 801 sb = sbuf->sb; 802 req.resp_size = sizeof(*sb) / BNXT_QPLIB_CMDQE_UNITS; 803 rc = bnxt_qplib_rcfw_send_message(rcfw, (void *)&req, (void *)&resp, 804 (void *)sbuf, 0); 805 if (rc) 806 goto bail; 807 /* Extract the context from the side buffer */ 808 stats->to_retransmits = le64_to_cpu(sb->to_retransmits); 809 stats->seq_err_naks_rcvd = le64_to_cpu(sb->seq_err_naks_rcvd); 810 stats->max_retry_exceeded = le64_to_cpu(sb->max_retry_exceeded); 811 stats->rnr_naks_rcvd = le64_to_cpu(sb->rnr_naks_rcvd); 812 stats->missing_resp = le64_to_cpu(sb->missing_resp); 813 stats->unrecoverable_err = le64_to_cpu(sb->unrecoverable_err); 814 stats->bad_resp_err = le64_to_cpu(sb->bad_resp_err); 815 stats->local_qp_op_err = le64_to_cpu(sb->local_qp_op_err); 816 stats->local_protection_err = le64_to_cpu(sb->local_protection_err); 817 stats->mem_mgmt_op_err = le64_to_cpu(sb->mem_mgmt_op_err); 818 stats->remote_invalid_req_err = le64_to_cpu(sb->remote_invalid_req_err); 819 stats->remote_access_err = le64_to_cpu(sb->remote_access_err); 820 stats->remote_op_err = le64_to_cpu(sb->remote_op_err); 821 stats->dup_req = le64_to_cpu(sb->dup_req); 822 stats->res_exceed_max = le64_to_cpu(sb->res_exceed_max); 823 stats->res_length_mismatch = le64_to_cpu(sb->res_length_mismatch); 824 stats->res_exceeds_wqe = le64_to_cpu(sb->res_exceeds_wqe); 825 stats->res_opcode_err = le64_to_cpu(sb->res_opcode_err); 826 stats->res_rx_invalid_rkey = le64_to_cpu(sb->res_rx_invalid_rkey); 827 stats->res_rx_domain_err = le64_to_cpu(sb->res_rx_domain_err); 828 stats->res_rx_no_perm = le64_to_cpu(sb->res_rx_no_perm); 829 stats->res_rx_range_err = le64_to_cpu(sb->res_rx_range_err); 830 stats->res_tx_invalid_rkey = le64_to_cpu(sb->res_tx_invalid_rkey); 831 stats->res_tx_domain_err = le64_to_cpu(sb->res_tx_domain_err); 832 stats->res_tx_no_perm = le64_to_cpu(sb->res_tx_no_perm); 833 stats->res_tx_range_err = le64_to_cpu(sb->res_tx_range_err); 834 stats->res_irrq_oflow = le64_to_cpu(sb->res_irrq_oflow); 835 stats->res_unsup_opcode = le64_to_cpu(sb->res_unsup_opcode); 836 stats->res_unaligned_atomic = le64_to_cpu(sb->res_unaligned_atomic); 837 stats->res_rem_inv_err = le64_to_cpu(sb->res_rem_inv_err); 838 stats->res_mem_error = le64_to_cpu(sb->res_mem_error); 839 stats->res_srq_err = le64_to_cpu(sb->res_srq_err); 840 stats->res_cmp_err = le64_to_cpu(sb->res_cmp_err); 841 stats->res_invalid_dup_rkey = le64_to_cpu(sb->res_invalid_dup_rkey); 842 stats->res_wqe_format_err = le64_to_cpu(sb->res_wqe_format_err); 843 stats->res_cq_load_err = le64_to_cpu(sb->res_cq_load_err); 844 stats->res_srq_load_err = le64_to_cpu(sb->res_srq_load_err); 845 stats->res_tx_pci_err = le64_to_cpu(sb->res_tx_pci_err); 846 stats->res_rx_pci_err = le64_to_cpu(sb->res_rx_pci_err); 847 bail: 848 bnxt_qplib_rcfw_free_sbuf(rcfw, sbuf); 849 return rc; 850 } 851