drivers/infiniband/hw/efa/efa_com_cmd.c

   1 // SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
   2 /*
   3  * Copyright 2018-2024 Amazon.com, Inc. or its affiliates. All rights reserved.
   4  */
   5
   6 #include "efa_com.h"
   7 #include "efa_com_cmd.h"
   8
   9 int efa_com_create_qp(struct efa_com_dev *edev,
  10                       struct efa_com_create_qp_params *params,
  11                       struct efa_com_create_qp_result *res)
  12 {
  13         struct efa_admin_create_qp_cmd create_qp_cmd = {};
  14         struct efa_admin_create_qp_resp cmd_completion;
  15         struct efa_com_admin_queue *aq = &edev->aq;
  16         int err;
  17
  18         create_qp_cmd.aq_common_desc.opcode = EFA_ADMIN_CREATE_QP;
  19
  20         create_qp_cmd.pd = params->pd;
  21         create_qp_cmd.qp_type = params->qp_type;
  22         create_qp_cmd.rq_base_addr = params->rq_base_addr;
  23         create_qp_cmd.send_cq_idx = params->send_cq_idx;
  24         create_qp_cmd.recv_cq_idx = params->recv_cq_idx;
  25         create_qp_cmd.qp_alloc_size.send_queue_ring_size =
  26                 params->sq_ring_size_in_bytes;
  27         create_qp_cmd.qp_alloc_size.send_queue_depth =
  28                         params->sq_depth;
  29         create_qp_cmd.qp_alloc_size.recv_queue_ring_size =
  30                         params->rq_ring_size_in_bytes;
  31         create_qp_cmd.qp_alloc_size.recv_queue_depth =
  32                         params->rq_depth;
  33         create_qp_cmd.uar = params->uarn;
  34
  35         if (params->unsolicited_write_recv)
  36                 EFA_SET(&create_qp_cmd.flags, EFA_ADMIN_CREATE_QP_CMD_UNSOLICITED_WRITE_RECV, 1);
  37
  38         err = efa_com_cmd_exec(aq,
  39                                (struct efa_admin_aq_entry *)&create_qp_cmd,
  40                                sizeof(create_qp_cmd),
  41                                (struct efa_admin_acq_entry *)&cmd_completion,
  42                                sizeof(cmd_completion));
  43         if (err) {
  44                 ibdev_err_ratelimited(edev->efa_dev,
  45                                       "Failed to create qp [%d]\n", err);
  46                 return err;
  47         }
  48
  49         res->qp_handle = cmd_completion.qp_handle;
  50         res->qp_num = cmd_completion.qp_num;
  51         res->sq_db_offset = cmd_completion.sq_db_offset;
  52         res->rq_db_offset = cmd_completion.rq_db_offset;
  53         res->llq_descriptors_offset = cmd_completion.llq_descriptors_offset;
  54         res->send_sub_cq_idx = cmd_completion.send_sub_cq_idx;
  55         res->recv_sub_cq_idx = cmd_completion.recv_sub_cq_idx;
  56
  57         return 0;
  58 }
  59
  60 int efa_com_modify_qp(struct efa_com_dev *edev,
  61                       struct efa_com_modify_qp_params *params)
  62 {
  63         struct efa_com_admin_queue *aq = &edev->aq;
  64         struct efa_admin_modify_qp_cmd cmd = {};
  65         struct efa_admin_modify_qp_resp resp;
  66         int err;
  67
  68         cmd.aq_common_desc.opcode = EFA_ADMIN_MODIFY_QP;
  69         cmd.modify_mask = params->modify_mask;
  70         cmd.qp_handle = params->qp_handle;
  71         cmd.qp_state = params->qp_state;
  72         cmd.cur_qp_state = params->cur_qp_state;
  73         cmd.qkey = params->qkey;
  74         cmd.sq_psn = params->sq_psn;
  75         cmd.sq_drained_async_notify = params->sq_drained_async_notify;
  76         cmd.rnr_retry = params->rnr_retry;
  77
  78         err = efa_com_cmd_exec(aq,
  79                                (struct efa_admin_aq_entry *)&cmd,
  80                                sizeof(cmd),
  81                                (struct efa_admin_acq_entry *)&resp,
  82                                sizeof(resp));
  83         if (err) {
  84                 ibdev_err_ratelimited(
  85                         edev->efa_dev,
  86                         "Failed to modify qp-%u modify_mask[%#x] [%d]\n",
  87                         cmd.qp_handle, cmd.modify_mask, err);
  88                 return err;
  89         }
  90
  91         return 0;
  92 }
  93
  94 int efa_com_query_qp(struct efa_com_dev *edev,
  95                      struct efa_com_query_qp_params *params,
  96                      struct efa_com_query_qp_result *result)
  97 {
  98         struct efa_com_admin_queue *aq = &edev->aq;
  99         struct efa_admin_query_qp_cmd cmd = {};
 100         struct efa_admin_query_qp_resp resp;
 101         int err;
 102
 103         cmd.aq_common_desc.opcode = EFA_ADMIN_QUERY_QP;
 104         cmd.qp_handle = params->qp_handle;
 105
 106         err = efa_com_cmd_exec(aq,
 107                                (struct efa_admin_aq_entry *)&cmd,
 108                                sizeof(cmd),
 109                                (struct efa_admin_acq_entry *)&resp,
 110                                sizeof(resp));
 111         if (err) {
 112                 ibdev_err_ratelimited(edev->efa_dev,
 113                                       "Failed to query qp-%u [%d]\n",
 114                                       cmd.qp_handle, err);
 115                 return err;
 116         }
 117
 118         result->qp_state = resp.qp_state;
 119         result->qkey = resp.qkey;
 120         result->sq_draining = resp.sq_draining;
 121         result->sq_psn = resp.sq_psn;
 122         result->rnr_retry = resp.rnr_retry;
 123
 124         return 0;
 125 }
 126
 127 int efa_com_destroy_qp(struct efa_com_dev *edev,
 128                        struct efa_com_destroy_qp_params *params)
 129 {
 130         struct efa_admin_destroy_qp_resp cmd_completion;
 131         struct efa_admin_destroy_qp_cmd qp_cmd = {};
 132         struct efa_com_admin_queue *aq = &edev->aq;
 133         int err;
 134
 135         qp_cmd.aq_common_desc.opcode = EFA_ADMIN_DESTROY_QP;
 136         qp_cmd.qp_handle = params->qp_handle;
 137
 138         err = efa_com_cmd_exec(aq,
 139                                (struct efa_admin_aq_entry *)&qp_cmd,
 140                                sizeof(qp_cmd),
 141                                (struct efa_admin_acq_entry *)&cmd_completion,
 142                                sizeof(cmd_completion));
 143         if (err) {
 144                 ibdev_err_ratelimited(edev->efa_dev,
 145                                       "Failed to destroy qp-%u [%d]\n",
 146                                       qp_cmd.qp_handle, err);
 147                 return err;
 148         }
 149
 150         return 0;
 151 }
 152
 153 int efa_com_create_cq(struct efa_com_dev *edev,
 154                       struct efa_com_create_cq_params *params,
 155                       struct efa_com_create_cq_result *result)
 156 {
 157         struct efa_admin_create_cq_resp cmd_completion = {};
 158         struct efa_admin_create_cq_cmd create_cmd = {};
 159         struct efa_com_admin_queue *aq = &edev->aq;
 160         int err;
 161
 162         create_cmd.aq_common_desc.opcode = EFA_ADMIN_CREATE_CQ;
 163         EFA_SET(&create_cmd.cq_caps_2,
 164                 EFA_ADMIN_CREATE_CQ_CMD_CQ_ENTRY_SIZE_WORDS,
 165                 params->entry_size_in_bytes / 4);
 166         create_cmd.cq_depth = params->cq_depth;
 167         create_cmd.num_sub_cqs = params->num_sub_cqs;
 168         create_cmd.uar = params->uarn;
 169         if (params->interrupt_mode_enabled) {
 170                 EFA_SET(&create_cmd.cq_caps_1,
 171                         EFA_ADMIN_CREATE_CQ_CMD_INTERRUPT_MODE_ENABLED, 1);
 172                 create_cmd.eqn = params->eqn;
 173         }
 174         if (params->set_src_addr) {
 175                 EFA_SET(&create_cmd.cq_caps_2,
 176                         EFA_ADMIN_CREATE_CQ_CMD_SET_SRC_ADDR, 1);
 177         }
 178         efa_com_set_dma_addr(params->dma_addr,
 179                              &create_cmd.cq_ba.mem_addr_high,
 180                              &create_cmd.cq_ba.mem_addr_low);
 181
 182         err = efa_com_cmd_exec(aq,
 183                                (struct efa_admin_aq_entry *)&create_cmd,
 184                                sizeof(create_cmd),
 185                                (struct efa_admin_acq_entry *)&cmd_completion,
 186                                sizeof(cmd_completion));
 187         if (err) {
 188                 ibdev_err_ratelimited(edev->efa_dev,
 189                                       "Failed to create cq[%d]\n", err);
 190                 return err;
 191         }
 192
 193         result->cq_idx = cmd_completion.cq_idx;
 194         result->actual_depth = params->cq_depth;
 195         result->db_off = cmd_completion.db_offset;
 196         result->db_valid = EFA_GET(&cmd_completion.flags,
 197                                    EFA_ADMIN_CREATE_CQ_RESP_DB_VALID);
 198
 199         return 0;
 200 }
 201
 202 int efa_com_destroy_cq(struct efa_com_dev *edev,
 203                        struct efa_com_destroy_cq_params *params)
 204 {
 205         struct efa_admin_destroy_cq_cmd destroy_cmd = {};
 206         struct efa_admin_destroy_cq_resp destroy_resp;
 207         struct efa_com_admin_queue *aq = &edev->aq;
 208         int err;
 209
 210         destroy_cmd.cq_idx = params->cq_idx;
 211         destroy_cmd.aq_common_desc.opcode = EFA_ADMIN_DESTROY_CQ;
 212
 213         err = efa_com_cmd_exec(aq,
 214                                (struct efa_admin_aq_entry *)&destroy_cmd,
 215                                sizeof(destroy_cmd),
 216                                (struct efa_admin_acq_entry *)&destroy_resp,
 217                                sizeof(destroy_resp));
 218
 219         if (err) {
 220                 ibdev_err_ratelimited(edev->efa_dev,
 221                                       "Failed to destroy CQ-%u [%d]\n",
 222                                       params->cq_idx, err);
 223                 return err;
 224         }
 225
 226         return 0;
 227 }
 228
 229 int efa_com_register_mr(struct efa_com_dev *edev,
 230                         struct efa_com_reg_mr_params *params,
 231                         struct efa_com_reg_mr_result *result)
 232 {
 233         struct efa_admin_reg_mr_resp cmd_completion;
 234         struct efa_com_admin_queue *aq = &edev->aq;
 235         struct efa_admin_reg_mr_cmd mr_cmd = {};
 236         int err;
 237
 238         mr_cmd.aq_common_desc.opcode = EFA_ADMIN_REG_MR;
 239         mr_cmd.pd = params->pd;
 240         mr_cmd.mr_length = params->mr_length_in_bytes;
 241         EFA_SET(&mr_cmd.flags, EFA_ADMIN_REG_MR_CMD_PHYS_PAGE_SIZE_SHIFT,
 242                 params->page_shift);
 243         mr_cmd.iova = params->iova;
 244         mr_cmd.permissions = params->permissions;
 245
 246         if (params->inline_pbl) {
 247                 memcpy(mr_cmd.pbl.inline_pbl_array,
 248                        params->pbl.inline_pbl_array,
 249                        sizeof(mr_cmd.pbl.inline_pbl_array));
 250         } else {
 251                 mr_cmd.pbl.pbl.length = params->pbl.pbl.length;
 252                 mr_cmd.pbl.pbl.address.mem_addr_low =
 253                         params->pbl.pbl.address.mem_addr_low;
 254                 mr_cmd.pbl.pbl.address.mem_addr_high =
 255                         params->pbl.pbl.address.mem_addr_high;
 256                 EFA_SET(&mr_cmd.aq_common_desc.flags,
 257                         EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA, 1);
 258                 if (params->indirect)
 259                         EFA_SET(&mr_cmd.aq_common_desc.flags,
 260                                 EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA_INDIRECT, 1);
 261         }
 262
 263         err = efa_com_cmd_exec(aq,
 264                                (struct efa_admin_aq_entry *)&mr_cmd,
 265                                sizeof(mr_cmd),
 266                                (struct efa_admin_acq_entry *)&cmd_completion,
 267                                sizeof(cmd_completion));
 268         if (err) {
 269                 ibdev_err_ratelimited(edev->efa_dev,
 270                                       "Failed to register mr [%d]\n", err);
 271                 return err;
 272         }
 273
 274         result->l_key = cmd_completion.l_key;
 275         result->r_key = cmd_completion.r_key;
 276         result->ic_info.recv_ic_id = cmd_completion.recv_ic_id;
 277         result->ic_info.rdma_read_ic_id = cmd_completion.rdma_read_ic_id;
 278         result->ic_info.rdma_recv_ic_id = cmd_completion.rdma_recv_ic_id;
 279         result->ic_info.recv_ic_id_valid = EFA_GET(&cmd_completion.validity,
 280                                                    EFA_ADMIN_REG_MR_RESP_RECV_IC_ID);
 281         result->ic_info.rdma_read_ic_id_valid = EFA_GET(&cmd_completion.validity,
 282                                                         EFA_ADMIN_REG_MR_RESP_RDMA_READ_IC_ID);
 283         result->ic_info.rdma_recv_ic_id_valid = EFA_GET(&cmd_completion.validity,
 284                                                         EFA_ADMIN_REG_MR_RESP_RDMA_RECV_IC_ID);
 285
 286         return 0;
 287 }
 288
 289 int efa_com_dereg_mr(struct efa_com_dev *edev,
 290                      struct efa_com_dereg_mr_params *params)
 291 {
 292         struct efa_admin_dereg_mr_resp cmd_completion;
 293         struct efa_com_admin_queue *aq = &edev->aq;
 294         struct efa_admin_dereg_mr_cmd mr_cmd = {};
 295         int err;
 296
 297         mr_cmd.aq_common_desc.opcode = EFA_ADMIN_DEREG_MR;
 298         mr_cmd.l_key = params->l_key;
 299
 300         err = efa_com_cmd_exec(aq,
 301                                (struct efa_admin_aq_entry *)&mr_cmd,
 302                                sizeof(mr_cmd),
 303                                (struct efa_admin_acq_entry *)&cmd_completion,
 304                                sizeof(cmd_completion));
 305         if (err) {
 306                 ibdev_err_ratelimited(edev->efa_dev,
 307                                       "Failed to de-register mr(lkey-%u) [%d]\n",
 308                                       mr_cmd.l_key, err);
 309                 return err;
 310         }
 311
 312         return 0;
 313 }
 314
 315 int efa_com_create_ah(struct efa_com_dev *edev,
 316                       struct efa_com_create_ah_params *params,
 317                       struct efa_com_create_ah_result *result)
 318 {
 319         struct efa_admin_create_ah_resp cmd_completion;
 320         struct efa_com_admin_queue *aq = &edev->aq;
 321         struct efa_admin_create_ah_cmd ah_cmd = {};
 322         int err;
 323
 324         ah_cmd.aq_common_desc.opcode = EFA_ADMIN_CREATE_AH;
 325
 326         memcpy(ah_cmd.dest_addr, params->dest_addr, sizeof(ah_cmd.dest_addr));
 327         ah_cmd.pd = params->pdn;
 328
 329         err = efa_com_cmd_exec(aq,
 330                                (struct efa_admin_aq_entry *)&ah_cmd,
 331                                sizeof(ah_cmd),
 332                                (struct efa_admin_acq_entry *)&cmd_completion,
 333                                sizeof(cmd_completion));
 334         if (err) {
 335                 ibdev_err_ratelimited(edev->efa_dev,
 336                                       "Failed to create ah for %pI6 [%d]\n",
 337                                       ah_cmd.dest_addr, err);
 338                 return err;
 339         }
 340
 341         result->ah = cmd_completion.ah;
 342
 343         return 0;
 344 }
 345
 346 int efa_com_destroy_ah(struct efa_com_dev *edev,
 347                        struct efa_com_destroy_ah_params *params)
 348 {
 349         struct efa_admin_destroy_ah_resp cmd_completion;
 350         struct efa_admin_destroy_ah_cmd ah_cmd = {};
 351         struct efa_com_admin_queue *aq = &edev->aq;
 352         int err;
 353
 354         ah_cmd.aq_common_desc.opcode = EFA_ADMIN_DESTROY_AH;
 355         ah_cmd.ah = params->ah;
 356         ah_cmd.pd = params->pdn;
 357
 358         err = efa_com_cmd_exec(aq,
 359                                (struct efa_admin_aq_entry *)&ah_cmd,
 360                                sizeof(ah_cmd),
 361                                (struct efa_admin_acq_entry *)&cmd_completion,
 362                                sizeof(cmd_completion));
 363         if (err) {
 364                 ibdev_err_ratelimited(edev->efa_dev,
 365                                       "Failed to destroy ah-%d pd-%d [%d]\n",
 366                                       ah_cmd.ah, ah_cmd.pd, err);
 367                 return err;
 368         }
 369
 370         return 0;
 371 }
 372
 373 bool
 374 efa_com_check_supported_feature_id(struct efa_com_dev *edev,
 375                                    enum efa_admin_aq_feature_id feature_id)
 376 {
 377         u32 feature_mask = 1 << feature_id;
 378
 379         /* Device attributes is always supported */
 380         if (feature_id != EFA_ADMIN_DEVICE_ATTR &&
 381             !(edev->supported_features & feature_mask))
 382                 return false;
 383
 384         return true;
 385 }
 386
 387 static int efa_com_get_feature_ex(struct efa_com_dev *edev,
 388                                   struct efa_admin_get_feature_resp *get_resp,
 389                                   enum efa_admin_aq_feature_id feature_id,
 390                                   dma_addr_t control_buf_dma_addr,
 391                                   u32 control_buff_size)
 392 {
 393         struct efa_admin_get_feature_cmd get_cmd = {};
 394         struct efa_com_admin_queue *aq;
 395         int err;
 396
 397         if (!efa_com_check_supported_feature_id(edev, feature_id)) {
 398                 ibdev_err_ratelimited(edev->efa_dev,
 399                                       "Feature %d isn't supported\n",
 400                                       feature_id);
 401                 return -EOPNOTSUPP;
 402         }
 403
 404         aq = &edev->aq;
 405
 406         get_cmd.aq_common_descriptor.opcode = EFA_ADMIN_GET_FEATURE;
 407
 408         if (control_buff_size)
 409                 EFA_SET(&get_cmd.aq_common_descriptor.flags,
 410                         EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA, 1);
 411
 412         efa_com_set_dma_addr(control_buf_dma_addr,
 413                              &get_cmd.control_buffer.address.mem_addr_high,
 414                              &get_cmd.control_buffer.address.mem_addr_low);
 415
 416         get_cmd.control_buffer.length = control_buff_size;
 417         get_cmd.feature_common.feature_id = feature_id;
 418         err = efa_com_cmd_exec(aq,
 419                                (struct efa_admin_aq_entry *)
 420                                &get_cmd,
 421                                sizeof(get_cmd),
 422                                (struct efa_admin_acq_entry *)
 423                                get_resp,
 424                                sizeof(*get_resp));
 425
 426         if (err) {
 427                 ibdev_err_ratelimited(
 428                         edev->efa_dev,
 429                         "Failed to submit get_feature command %d [%d]\n",
 430                         feature_id, err);
 431                 return err;
 432         }
 433
 434         return 0;
 435 }
 436
 437 static int efa_com_get_feature(struct efa_com_dev *edev,
 438                                struct efa_admin_get_feature_resp *get_resp,
 439                                enum efa_admin_aq_feature_id feature_id)
 440 {
 441         return efa_com_get_feature_ex(edev, get_resp, feature_id, 0, 0);
 442 }
 443
 444 int efa_com_get_device_attr(struct efa_com_dev *edev,
 445                             struct efa_com_get_device_attr_result *result)
 446 {
 447         struct efa_admin_get_feature_resp resp;
 448         int err;
 449
 450         err = efa_com_get_feature(edev, &resp, EFA_ADMIN_DEVICE_ATTR);
 451         if (err) {
 452                 ibdev_err_ratelimited(edev->efa_dev,
 453                                       "Failed to get device attributes %d\n",
 454                                       err);
 455                 return err;
 456         }
 457
 458         result->page_size_cap = resp.u.device_attr.page_size_cap;
 459         result->fw_version = resp.u.device_attr.fw_version;
 460         result->admin_api_version = resp.u.device_attr.admin_api_version;
 461         result->device_version = resp.u.device_attr.device_version;
 462         result->supported_features = resp.u.device_attr.supported_features;
 463         result->phys_addr_width = resp.u.device_attr.phys_addr_width;
 464         result->virt_addr_width = resp.u.device_attr.virt_addr_width;
 465         result->db_bar = resp.u.device_attr.db_bar;
 466         result->max_rdma_size = resp.u.device_attr.max_rdma_size;
 467         result->device_caps = resp.u.device_attr.device_caps;
 468
 469         if (result->admin_api_version < 1) {
 470                 ibdev_err_ratelimited(
 471                         edev->efa_dev,
 472                         "Failed to get device attr api version [%u < 1]\n",
 473                         result->admin_api_version);
 474                 return -EINVAL;
 475         }
 476
 477         edev->supported_features = resp.u.device_attr.supported_features;
 478         err = efa_com_get_feature(edev, &resp,
 479                                   EFA_ADMIN_QUEUE_ATTR);
 480         if (err) {
 481                 ibdev_err_ratelimited(edev->efa_dev,
 482                                       "Failed to get queue attributes %d\n",
 483                                       err);
 484                 return err;
 485         }
 486
 487         result->max_qp = resp.u.queue_attr.max_qp;
 488         result->max_sq_depth = resp.u.queue_attr.max_sq_depth;
 489         result->max_rq_depth = resp.u.queue_attr.max_rq_depth;
 490         result->max_cq = resp.u.queue_attr.max_cq;
 491         result->max_cq_depth = resp.u.queue_attr.max_cq_depth;
 492         result->inline_buf_size = resp.u.queue_attr.inline_buf_size;
 493         result->max_sq_sge = resp.u.queue_attr.max_wr_send_sges;
 494         result->max_rq_sge = resp.u.queue_attr.max_wr_recv_sges;
 495         result->max_mr = resp.u.queue_attr.max_mr;
 496         result->max_mr_pages = resp.u.queue_attr.max_mr_pages;
 497         result->max_pd = resp.u.queue_attr.max_pd;
 498         result->max_ah = resp.u.queue_attr.max_ah;
 499         result->max_llq_size = resp.u.queue_attr.max_llq_size;
 500         result->sub_cqs_per_cq = resp.u.queue_attr.sub_cqs_per_cq;
 501         result->max_wr_rdma_sge = resp.u.queue_attr.max_wr_rdma_sges;
 502         result->max_tx_batch = resp.u.queue_attr.max_tx_batch;
 503         result->min_sq_depth = resp.u.queue_attr.min_sq_depth;
 504
 505         err = efa_com_get_feature(edev, &resp, EFA_ADMIN_NETWORK_ATTR);
 506         if (err) {
 507                 ibdev_err_ratelimited(edev->efa_dev,
 508                                       "Failed to get network attributes %d\n",
 509                                       err);
 510                 return err;
 511         }
 512
 513         memcpy(result->addr, resp.u.network_attr.addr,
 514                sizeof(resp.u.network_attr.addr));
 515         result->mtu = resp.u.network_attr.mtu;
 516
 517         if (efa_com_check_supported_feature_id(edev,
 518                                                EFA_ADMIN_EVENT_QUEUE_ATTR)) {
 519                 err = efa_com_get_feature(edev, &resp,
 520                                           EFA_ADMIN_EVENT_QUEUE_ATTR);
 521                 if (err) {
 522                         ibdev_err_ratelimited(
 523                                 edev->efa_dev,
 524                                 "Failed to get event queue attributes %d\n",
 525                                 err);
 526                         return err;
 527                 }
 528
 529                 result->max_eq = resp.u.event_queue_attr.max_eq;
 530                 result->max_eq_depth = resp.u.event_queue_attr.max_eq_depth;
 531                 result->event_bitmask = resp.u.event_queue_attr.event_bitmask;
 532         }
 533
 534         return 0;
 535 }
 536
 537 int efa_com_get_hw_hints(struct efa_com_dev *edev,
 538                          struct efa_com_get_hw_hints_result *result)
 539 {
 540         struct efa_admin_get_feature_resp resp;
 541         int err;
 542
 543         err = efa_com_get_feature(edev, &resp, EFA_ADMIN_HW_HINTS);
 544         if (err) {
 545                 ibdev_err_ratelimited(edev->efa_dev,
 546                                       "Failed to get hw hints %d\n", err);
 547                 return err;
 548         }
 549
 550         result->admin_completion_timeout = resp.u.hw_hints.admin_completion_timeout;
 551         result->driver_watchdog_timeout = resp.u.hw_hints.driver_watchdog_timeout;
 552         result->mmio_read_timeout = resp.u.hw_hints.mmio_read_timeout;
 553         result->poll_interval = resp.u.hw_hints.poll_interval;
 554
 555         return 0;
 556 }
 557
 558 int efa_com_set_feature_ex(struct efa_com_dev *edev,
 559                            struct efa_admin_set_feature_resp *set_resp,
 560                            struct efa_admin_set_feature_cmd *set_cmd,
 561                            enum efa_admin_aq_feature_id feature_id,
 562                            dma_addr_t control_buf_dma_addr,
 563                            u32 control_buff_size)
 564 {
 565         struct efa_com_admin_queue *aq;
 566         int err;
 567
 568         if (!efa_com_check_supported_feature_id(edev, feature_id)) {
 569                 ibdev_err_ratelimited(edev->efa_dev,
 570                                       "Feature %d isn't supported\n",
 571                                       feature_id);
 572                 return -EOPNOTSUPP;
 573         }
 574
 575         aq = &edev->aq;
 576
 577         set_cmd->aq_common_descriptor.opcode = EFA_ADMIN_SET_FEATURE;
 578         if (control_buff_size) {
 579                 set_cmd->aq_common_descriptor.flags = 0;
 580                 EFA_SET(&set_cmd->aq_common_descriptor.flags,
 581                         EFA_ADMIN_AQ_COMMON_DESC_CTRL_DATA, 1);
 582                 efa_com_set_dma_addr(control_buf_dma_addr,
 583                                      &set_cmd->control_buffer.address.mem_addr_high,
 584                                      &set_cmd->control_buffer.address.mem_addr_low);
 585         }
 586
 587         set_cmd->control_buffer.length = control_buff_size;
 588         set_cmd->feature_common.feature_id = feature_id;
 589         err = efa_com_cmd_exec(aq,
 590                                (struct efa_admin_aq_entry *)set_cmd,
 591                                sizeof(*set_cmd),
 592                                (struct efa_admin_acq_entry *)set_resp,
 593                                sizeof(*set_resp));
 594
 595         if (err) {
 596                 ibdev_err_ratelimited(
 597                         edev->efa_dev,
 598                         "Failed to submit set_feature command %d error: %d\n",
 599                         feature_id, err);
 600                 return err;
 601         }
 602
 603         return 0;
 604 }
 605
 606 static int efa_com_set_feature(struct efa_com_dev *edev,
 607                                struct efa_admin_set_feature_resp *set_resp,
 608                                struct efa_admin_set_feature_cmd *set_cmd,
 609                                enum efa_admin_aq_feature_id feature_id)
 610 {
 611         return efa_com_set_feature_ex(edev, set_resp, set_cmd, feature_id,
 612                                       0, 0);
 613 }
 614
 615 int efa_com_set_aenq_config(struct efa_com_dev *edev, u32 groups)
 616 {
 617         struct efa_admin_get_feature_resp get_resp;
 618         struct efa_admin_set_feature_resp set_resp;
 619         struct efa_admin_set_feature_cmd cmd = {};
 620         int err;
 621
 622         ibdev_dbg(edev->efa_dev, "Configuring aenq with groups[%#x]\n", groups);
 623
 624         err = efa_com_get_feature(edev, &get_resp, EFA_ADMIN_AENQ_CONFIG);
 625         if (err) {
 626                 ibdev_err_ratelimited(edev->efa_dev,
 627                                       "Failed to get aenq attributes: %d\n",
 628                                       err);
 629                 return err;
 630         }
 631
 632         ibdev_dbg(edev->efa_dev,
 633                   "Get aenq groups: supported[%#x] enabled[%#x]\n",
 634                   get_resp.u.aenq.supported_groups,
 635                   get_resp.u.aenq.enabled_groups);
 636
 637         if ((get_resp.u.aenq.supported_groups & groups) != groups) {
 638                 ibdev_err_ratelimited(
 639                         edev->efa_dev,
 640                         "Trying to set unsupported aenq groups[%#x] supported[%#x]\n",
 641                         groups, get_resp.u.aenq.supported_groups);
 642                 return -EOPNOTSUPP;
 643         }
 644
 645         cmd.u.aenq.enabled_groups = groups;
 646         err = efa_com_set_feature(edev, &set_resp, &cmd,
 647                                   EFA_ADMIN_AENQ_CONFIG);
 648         if (err) {
 649                 ibdev_err_ratelimited(edev->efa_dev,
 650                                       "Failed to set aenq attributes: %d\n",
 651                                       err);
 652                 return err;
 653         }
 654
 655         return 0;
 656 }
 657
 658 int efa_com_alloc_pd(struct efa_com_dev *edev,
 659                      struct efa_com_alloc_pd_result *result)
 660 {
 661         struct efa_com_admin_queue *aq = &edev->aq;
 662         struct efa_admin_alloc_pd_cmd cmd = {};
 663         struct efa_admin_alloc_pd_resp resp;
 664         int err;
 665
 666         cmd.aq_common_descriptor.opcode = EFA_ADMIN_ALLOC_PD;
 667
 668         err = efa_com_cmd_exec(aq,
 669                                (struct efa_admin_aq_entry *)&cmd,
 670                                sizeof(cmd),
 671                                (struct efa_admin_acq_entry *)&resp,
 672                                sizeof(resp));
 673         if (err) {
 674                 ibdev_err_ratelimited(edev->efa_dev,
 675                                       "Failed to allocate pd[%d]\n", err);
 676                 return err;
 677         }
 678
 679         result->pdn = resp.pd;
 680
 681         return 0;
 682 }
 683
 684 int efa_com_dealloc_pd(struct efa_com_dev *edev,
 685                        struct efa_com_dealloc_pd_params *params)
 686 {
 687         struct efa_com_admin_queue *aq = &edev->aq;
 688         struct efa_admin_dealloc_pd_cmd cmd = {};
 689         struct efa_admin_dealloc_pd_resp resp;
 690         int err;
 691
 692         cmd.aq_common_descriptor.opcode = EFA_ADMIN_DEALLOC_PD;
 693         cmd.pd = params->pdn;
 694
 695         err = efa_com_cmd_exec(aq,
 696                                (struct efa_admin_aq_entry *)&cmd,
 697                                sizeof(cmd),
 698                                (struct efa_admin_acq_entry *)&resp,
 699                                sizeof(resp));
 700         if (err) {
 701                 ibdev_err_ratelimited(edev->efa_dev,
 702                                       "Failed to deallocate pd-%u [%d]\n",
 703                                       cmd.pd, err);
 704                 return err;
 705         }
 706
 707         return 0;
 708 }
 709
 710 int efa_com_alloc_uar(struct efa_com_dev *edev,
 711                       struct efa_com_alloc_uar_result *result)
 712 {
 713         struct efa_com_admin_queue *aq = &edev->aq;
 714         struct efa_admin_alloc_uar_cmd cmd = {};
 715         struct efa_admin_alloc_uar_resp resp;
 716         int err;
 717
 718         cmd.aq_common_descriptor.opcode = EFA_ADMIN_ALLOC_UAR;
 719
 720         err = efa_com_cmd_exec(aq,
 721                                (struct efa_admin_aq_entry *)&cmd,
 722                                sizeof(cmd),
 723                                (struct efa_admin_acq_entry *)&resp,
 724                                sizeof(resp));
 725         if (err) {
 726                 ibdev_err_ratelimited(edev->efa_dev,
 727                                       "Failed to allocate uar[%d]\n", err);
 728                 return err;
 729         }
 730
 731         result->uarn = resp.uar;
 732
 733         return 0;
 734 }
 735
 736 int efa_com_dealloc_uar(struct efa_com_dev *edev,
 737                         struct efa_com_dealloc_uar_params *params)
 738 {
 739         struct efa_com_admin_queue *aq = &edev->aq;
 740         struct efa_admin_dealloc_uar_cmd cmd = {};
 741         struct efa_admin_dealloc_uar_resp resp;
 742         int err;
 743
 744         cmd.aq_common_descriptor.opcode = EFA_ADMIN_DEALLOC_UAR;
 745         cmd.uar = params->uarn;
 746
 747         err = efa_com_cmd_exec(aq,
 748                                (struct efa_admin_aq_entry *)&cmd,
 749                                sizeof(cmd),
 750                                (struct efa_admin_acq_entry *)&resp,
 751                                sizeof(resp));
 752         if (err) {
 753                 ibdev_err_ratelimited(edev->efa_dev,
 754                                       "Failed to deallocate uar-%u [%d]\n",
 755                                       cmd.uar, err);
 756                 return err;
 757         }
 758
 759         return 0;
 760 }
 761
 762 int efa_com_get_stats(struct efa_com_dev *edev,
 763                       struct efa_com_get_stats_params *params,
 764                       union efa_com_get_stats_result *result)
 765 {
 766         struct efa_com_admin_queue *aq = &edev->aq;
 767         struct efa_admin_aq_get_stats_cmd cmd = {};
 768         struct efa_admin_acq_get_stats_resp resp;
 769         int err;
 770
 771         cmd.aq_common_descriptor.opcode = EFA_ADMIN_GET_STATS;
 772         cmd.type = params->type;
 773         cmd.scope = params->scope;
 774         cmd.scope_modifier = params->scope_modifier;
 775
 776         err = efa_com_cmd_exec(aq,
 777                                (struct efa_admin_aq_entry *)&cmd,
 778                                sizeof(cmd),
 779                                (struct efa_admin_acq_entry *)&resp,
 780                                sizeof(resp));
 781         if (err) {
 782                 ibdev_err_ratelimited(
 783                         edev->efa_dev,
 784                         "Failed to get stats type-%u scope-%u.%u [%d]\n",
 785                         cmd.type, cmd.scope, cmd.scope_modifier, err);
 786                 return err;
 787         }
 788
 789         switch (cmd.type) {
 790         case EFA_ADMIN_GET_STATS_TYPE_BASIC:
 791                 result->basic_stats.tx_bytes = resp.u.basic_stats.tx_bytes;
 792                 result->basic_stats.tx_pkts = resp.u.basic_stats.tx_pkts;
 793                 result->basic_stats.rx_bytes = resp.u.basic_stats.rx_bytes;
 794                 result->basic_stats.rx_pkts = resp.u.basic_stats.rx_pkts;
 795                 result->basic_stats.rx_drops = resp.u.basic_stats.rx_drops;
 796                 break;
 797         case EFA_ADMIN_GET_STATS_TYPE_MESSAGES:
 798                 result->messages_stats.send_bytes = resp.u.messages_stats.send_bytes;
 799                 result->messages_stats.send_wrs = resp.u.messages_stats.send_wrs;
 800                 result->messages_stats.recv_bytes = resp.u.messages_stats.recv_bytes;
 801                 result->messages_stats.recv_wrs = resp.u.messages_stats.recv_wrs;
 802                 break;
 803         case EFA_ADMIN_GET_STATS_TYPE_RDMA_READ:
 804                 result->rdma_read_stats.read_wrs = resp.u.rdma_read_stats.read_wrs;
 805                 result->rdma_read_stats.read_bytes = resp.u.rdma_read_stats.read_bytes;
 806                 result->rdma_read_stats.read_wr_err = resp.u.rdma_read_stats.read_wr_err;
 807                 result->rdma_read_stats.read_resp_bytes = resp.u.rdma_read_stats.read_resp_bytes;
 808                 break;
 809         case EFA_ADMIN_GET_STATS_TYPE_RDMA_WRITE:
 810                 result->rdma_write_stats.write_wrs = resp.u.rdma_write_stats.write_wrs;
 811                 result->rdma_write_stats.write_bytes = resp.u.rdma_write_stats.write_bytes;
 812                 result->rdma_write_stats.write_wr_err = resp.u.rdma_write_stats.write_wr_err;
 813                 result->rdma_write_stats.write_recv_bytes = resp.u.rdma_write_stats.write_recv_bytes;
 814                 break;
 815         }
 816
 817         return 0;
 818 }