1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright 2015 6WIND S.A. 3 * Copyright 2020 Mellanox Technologies, Ltd 4 */ 5 6 #include <stddef.h> 7 #include <unistd.h> 8 #include <string.h> 9 #include <stdint.h> 10 #include <stdlib.h> 11 #include <errno.h> 12 #include <net/if.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/sockios.h> 15 #include <linux/ethtool.h> 16 #include <fcntl.h> 17 18 #include <rte_malloc.h> 19 #include <ethdev_driver.h> 20 #include <ethdev_pci.h> 21 #include <rte_pci.h> 22 #include <bus_driver.h> 23 #include <bus_pci_driver.h> 24 #include <bus_auxiliary_driver.h> 25 #include <rte_common.h> 26 #include <rte_kvargs.h> 27 #include <rte_rwlock.h> 28 #include <rte_spinlock.h> 29 #include <rte_string_fns.h> 30 #include <rte_alarm.h> 31 #include <rte_eal_paging.h> 32 33 #include <mlx5_glue.h> 34 #include <mlx5_devx_cmds.h> 35 #include <mlx5_common.h> 36 #include <mlx5_common_mp.h> 37 #include <mlx5_common_mr.h> 38 #include <mlx5_malloc.h> 39 40 #include "mlx5_defs.h" 41 #include "mlx5.h" 42 #include "mlx5_common_os.h" 43 #include "mlx5_utils.h" 44 #include "mlx5_rxtx.h" 45 #include "mlx5_rx.h" 46 #include "mlx5_tx.h" 47 #include "mlx5_autoconf.h" 48 #include "mlx5_flow.h" 49 #include "rte_pmd_mlx5.h" 50 #include "mlx5_verbs.h" 51 #include "mlx5_nl.h" 52 #include "mlx5_devx.h" 53 54 #ifndef HAVE_IBV_MLX5_MOD_MPW 55 #define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2) 56 #define MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW (1 << 3) 57 #endif 58 59 #ifndef HAVE_IBV_MLX5_MOD_CQE_128B_COMP 60 #define MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP (1 << 4) 61 #endif 62 63 static const char *MZ_MLX5_PMD_SHARED_DATA = "mlx5_pmd_shared_data"; 64 65 /* Spinlock for mlx5_shared_data allocation. */ 66 static rte_spinlock_t mlx5_shared_data_lock = RTE_SPINLOCK_INITIALIZER; 67 68 /* Process local data for secondary processes. */ 69 static struct mlx5_local_data mlx5_local_data; 70 71 /* rte flow indexed pool configuration. */ 72 static const struct mlx5_indexed_pool_config default_icfg[] = { 73 { 74 .size = sizeof(struct rte_flow), 75 .trunk_size = 64, 76 .need_lock = 1, 77 .release_mem_en = 0, 78 .malloc = mlx5_malloc, 79 .free = mlx5_free, 80 .per_core_cache = 0, 81 .type = "ctl_flow_ipool", 82 }, 83 { 84 .size = sizeof(struct rte_flow), 85 .trunk_size = 64, 86 .grow_trunk = 3, 87 .grow_shift = 2, 88 .need_lock = 1, 89 .release_mem_en = 0, 90 .malloc = mlx5_malloc, 91 .free = mlx5_free, 92 .per_core_cache = 1 << 14, 93 .type = "rte_flow_ipool", 94 }, 95 { 96 .size = sizeof(struct rte_flow), 97 .trunk_size = 64, 98 .grow_trunk = 3, 99 .grow_shift = 2, 100 .need_lock = 1, 101 .release_mem_en = 0, 102 .malloc = mlx5_malloc, 103 .free = mlx5_free, 104 .per_core_cache = 0, 105 .type = "mcp_flow_ipool", 106 }, 107 }; 108 109 /** 110 * Set the completion channel file descriptor interrupt as non-blocking. 111 * 112 * @param[in] rxq_obj 113 * Pointer to RQ channel object, which includes the channel fd 114 * 115 * @param[out] fd 116 * The file descriptor (representing the interrupt) used in this channel. 117 * 118 * @return 119 * 0 on successfully setting the fd to non-blocking, non-zero otherwise. 120 */ 121 int 122 mlx5_os_set_nonblock_channel_fd(int fd) 123 { 124 int flags; 125 126 flags = fcntl(fd, F_GETFL); 127 return fcntl(fd, F_SETFL, flags | O_NONBLOCK); 128 } 129 130 /** 131 * Get mlx5 device attributes. The glue function query_device_ex() is called 132 * with out parameter of type 'struct ibv_device_attr_ex *'. Then fill in mlx5 133 * device attributes from the glue out parameter. 134 * 135 * @param sh 136 * Pointer to shared device context. 137 * 138 * @return 139 * 0 on success, a negative errno value otherwise and rte_errno is set. 140 */ 141 int 142 mlx5_os_capabilities_prepare(struct mlx5_dev_ctx_shared *sh) 143 { 144 int err; 145 struct mlx5_common_device *cdev = sh->cdev; 146 struct mlx5_hca_attr *hca_attr = &cdev->config.hca_attr; 147 struct ibv_device_attr_ex attr_ex = { .comp_mask = 0 }; 148 struct mlx5dv_context dv_attr = { .comp_mask = 0 }; 149 150 err = mlx5_glue->query_device_ex(cdev->ctx, NULL, &attr_ex); 151 if (err) { 152 rte_errno = errno; 153 return -rte_errno; 154 } 155 #ifdef HAVE_IBV_MLX5_MOD_SWP 156 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP; 157 #endif 158 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT 159 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS; 160 #endif 161 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT 162 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ; 163 #endif 164 #ifdef HAVE_IBV_DEVICE_ATTR_ESW_MGR_REG_C0 165 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_REG_C0; 166 #endif 167 err = mlx5_glue->dv_query_device(cdev->ctx, &dv_attr); 168 if (err) { 169 rte_errno = errno; 170 return -rte_errno; 171 } 172 memset(&sh->dev_cap, 0, sizeof(struct mlx5_dev_cap)); 173 if (mlx5_dev_is_pci(cdev->dev)) 174 sh->dev_cap.vf = mlx5_dev_is_vf_pci(RTE_DEV_TO_PCI(cdev->dev)); 175 else 176 sh->dev_cap.sf = 1; 177 sh->dev_cap.max_qp_wr = attr_ex.orig_attr.max_qp_wr; 178 sh->dev_cap.max_sge = attr_ex.orig_attr.max_sge; 179 sh->dev_cap.max_cq = attr_ex.orig_attr.max_cq; 180 sh->dev_cap.max_qp = attr_ex.orig_attr.max_qp; 181 #ifdef HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR 182 sh->dev_cap.dest_tir = 1; 183 #endif 184 #if defined(HAVE_IBV_FLOW_DV_SUPPORT) && defined(HAVE_MLX5DV_DR) 185 DRV_LOG(DEBUG, "DV flow is supported."); 186 sh->dev_cap.dv_flow_en = 1; 187 #endif 188 #ifdef HAVE_MLX5DV_DR_ESWITCH 189 if (hca_attr->eswitch_manager && sh->dev_cap.dv_flow_en && sh->esw_mode) 190 sh->dev_cap.dv_esw_en = 1; 191 #endif 192 /* 193 * Multi-packet send is supported by ConnectX-4 Lx PF as well 194 * as all ConnectX-5 devices. 195 */ 196 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) { 197 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) { 198 DRV_LOG(DEBUG, "Enhanced MPW is supported."); 199 sh->dev_cap.mps = MLX5_MPW_ENHANCED; 200 } else { 201 DRV_LOG(DEBUG, "MPW is supported."); 202 sh->dev_cap.mps = MLX5_MPW; 203 } 204 } else { 205 DRV_LOG(DEBUG, "MPW isn't supported."); 206 sh->dev_cap.mps = MLX5_MPW_DISABLED; 207 } 208 #if (RTE_CACHE_LINE_SIZE == 128) 209 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP) 210 sh->dev_cap.cqe_comp = 1; 211 DRV_LOG(DEBUG, "Rx CQE 128B compression is %ssupported.", 212 sh->dev_cap.cqe_comp ? "" : "not "); 213 #else 214 sh->dev_cap.cqe_comp = 1; 215 #endif 216 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT 217 sh->dev_cap.mpls_en = 218 ((dv_attr.tunnel_offloads_caps & 219 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_GRE) && 220 (dv_attr.tunnel_offloads_caps & 221 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_UDP)); 222 DRV_LOG(DEBUG, "MPLS over GRE/UDP tunnel offloading is %ssupported.", 223 sh->dev_cap.mpls_en ? "" : "not "); 224 #else 225 DRV_LOG(WARNING, 226 "MPLS over GRE/UDP tunnel offloading disabled due to old OFED/rdma-core version or firmware configuration"); 227 #endif 228 #if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING) 229 sh->dev_cap.hw_padding = !!attr_ex.rx_pad_end_addr_align; 230 #elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING) 231 sh->dev_cap.hw_padding = !!(attr_ex.device_cap_flags_ex & 232 IBV_DEVICE_PCI_WRITE_END_PADDING); 233 #endif 234 sh->dev_cap.hw_csum = 235 !!(attr_ex.device_cap_flags_ex & IBV_DEVICE_RAW_IP_CSUM); 236 DRV_LOG(DEBUG, "Checksum offloading is %ssupported.", 237 sh->dev_cap.hw_csum ? "" : "not "); 238 sh->dev_cap.hw_vlan_strip = !!(attr_ex.raw_packet_caps & 239 IBV_RAW_PACKET_CAP_CVLAN_STRIPPING); 240 DRV_LOG(DEBUG, "VLAN stripping is %ssupported.", 241 (sh->dev_cap.hw_vlan_strip ? "" : "not ")); 242 sh->dev_cap.hw_fcs_strip = !!(attr_ex.raw_packet_caps & 243 IBV_RAW_PACKET_CAP_SCATTER_FCS); 244 #if !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) && \ 245 !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45) 246 DRV_LOG(DEBUG, "Counters are not supported."); 247 #endif 248 /* 249 * DPDK doesn't support larger/variable indirection tables. 250 * Once DPDK supports it, take max size from device attr. 251 */ 252 sh->dev_cap.ind_table_max_size = 253 RTE_MIN(attr_ex.rss_caps.max_rwq_indirection_table_size, 254 (unsigned int)RTE_ETH_RSS_RETA_SIZE_512); 255 DRV_LOG(DEBUG, "Maximum Rx indirection table size is %u", 256 sh->dev_cap.ind_table_max_size); 257 sh->dev_cap.tso = (attr_ex.tso_caps.max_tso > 0 && 258 (attr_ex.tso_caps.supported_qpts & 259 (1 << IBV_QPT_RAW_PACKET))); 260 if (sh->dev_cap.tso) 261 sh->dev_cap.tso_max_payload_sz = attr_ex.tso_caps.max_tso; 262 strlcpy(sh->dev_cap.fw_ver, attr_ex.orig_attr.fw_ver, 263 sizeof(sh->dev_cap.fw_ver)); 264 #ifdef HAVE_IBV_MLX5_MOD_SWP 265 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_SWP) 266 sh->dev_cap.swp = dv_attr.sw_parsing_caps.sw_parsing_offloads & 267 (MLX5_SW_PARSING_CAP | 268 MLX5_SW_PARSING_CSUM_CAP | 269 MLX5_SW_PARSING_TSO_CAP); 270 DRV_LOG(DEBUG, "SWP support: %u", sh->dev_cap.swp); 271 #endif 272 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT 273 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) { 274 struct mlx5dv_striding_rq_caps *strd_rq_caps = 275 &dv_attr.striding_rq_caps; 276 277 sh->dev_cap.mprq.enabled = 1; 278 sh->dev_cap.mprq.log_min_stride_size = 279 strd_rq_caps->min_single_stride_log_num_of_bytes; 280 sh->dev_cap.mprq.log_max_stride_size = 281 strd_rq_caps->max_single_stride_log_num_of_bytes; 282 sh->dev_cap.mprq.log_min_stride_num = 283 strd_rq_caps->min_single_wqe_log_num_of_strides; 284 sh->dev_cap.mprq.log_max_stride_num = 285 strd_rq_caps->max_single_wqe_log_num_of_strides; 286 sh->dev_cap.mprq.log_min_stride_wqe_size = 287 cdev->config.devx ? 288 hca_attr->log_min_stride_wqe_sz : 289 MLX5_MPRQ_LOG_MIN_STRIDE_WQE_SIZE; 290 DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %u", 291 sh->dev_cap.mprq.log_min_stride_size); 292 DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %u", 293 sh->dev_cap.mprq.log_max_stride_size); 294 DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %u", 295 sh->dev_cap.mprq.log_min_stride_num); 296 DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %u", 297 sh->dev_cap.mprq.log_max_stride_num); 298 DRV_LOG(DEBUG, "\tmin_stride_wqe_log_size: %u", 299 sh->dev_cap.mprq.log_min_stride_wqe_size); 300 DRV_LOG(DEBUG, "\tsupported_qpts: %d", 301 strd_rq_caps->supported_qpts); 302 DRV_LOG(DEBUG, "Device supports Multi-Packet RQ."); 303 } 304 #endif 305 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT 306 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) { 307 sh->dev_cap.tunnel_en = dv_attr.tunnel_offloads_caps & 308 (MLX5_TUNNELED_OFFLOADS_VXLAN_CAP | 309 MLX5_TUNNELED_OFFLOADS_GRE_CAP | 310 MLX5_TUNNELED_OFFLOADS_GENEVE_CAP); 311 } 312 if (sh->dev_cap.tunnel_en) { 313 DRV_LOG(DEBUG, "Tunnel offloading is supported for %s%s%s", 314 sh->dev_cap.tunnel_en & 315 MLX5_TUNNELED_OFFLOADS_VXLAN_CAP ? "[VXLAN]" : "", 316 sh->dev_cap.tunnel_en & 317 MLX5_TUNNELED_OFFLOADS_GRE_CAP ? "[GRE]" : "", 318 sh->dev_cap.tunnel_en & 319 MLX5_TUNNELED_OFFLOADS_GENEVE_CAP ? "[GENEVE]" : ""); 320 } else { 321 DRV_LOG(DEBUG, "Tunnel offloading is not supported."); 322 } 323 #else 324 DRV_LOG(WARNING, 325 "Tunnel offloading disabled due to old OFED/rdma-core version"); 326 #endif 327 if (!sh->cdev->config.devx) 328 return 0; 329 /* Check capabilities for Packet Pacing. */ 330 DRV_LOG(DEBUG, "Timestamp counter frequency %u kHz.", 331 hca_attr->dev_freq_khz); 332 DRV_LOG(DEBUG, "Packet pacing is %ssupported.", 333 hca_attr->qos.packet_pacing ? "" : "not "); 334 DRV_LOG(DEBUG, "Cross channel ops are %ssupported.", 335 hca_attr->cross_channel ? "" : "not "); 336 DRV_LOG(DEBUG, "WQE index ignore is %ssupported.", 337 hca_attr->wqe_index_ignore ? "" : "not "); 338 DRV_LOG(DEBUG, "Non-wire SQ feature is %ssupported.", 339 hca_attr->non_wire_sq ? "" : "not "); 340 DRV_LOG(DEBUG, "Static WQE SQ feature is %ssupported (%d)", 341 hca_attr->log_max_static_sq_wq ? "" : "not ", 342 hca_attr->log_max_static_sq_wq); 343 DRV_LOG(DEBUG, "WQE rate PP mode is %ssupported.", 344 hca_attr->qos.wqe_rate_pp ? "" : "not "); 345 sh->dev_cap.txpp_en = hca_attr->qos.packet_pacing; 346 if (!hca_attr->cross_channel) { 347 DRV_LOG(DEBUG, 348 "Cross channel operations are required for packet pacing."); 349 sh->dev_cap.txpp_en = 0; 350 } 351 if (!hca_attr->wqe_index_ignore) { 352 DRV_LOG(DEBUG, 353 "WQE index ignore feature is required for packet pacing."); 354 sh->dev_cap.txpp_en = 0; 355 } 356 if (!hca_attr->non_wire_sq) { 357 DRV_LOG(DEBUG, 358 "Non-wire SQ feature is required for packet pacing."); 359 sh->dev_cap.txpp_en = 0; 360 } 361 if (!hca_attr->log_max_static_sq_wq) { 362 DRV_LOG(DEBUG, 363 "Static WQE SQ feature is required for packet pacing."); 364 sh->dev_cap.txpp_en = 0; 365 } 366 if (!hca_attr->qos.wqe_rate_pp) { 367 DRV_LOG(DEBUG, 368 "WQE rate mode is required for packet pacing."); 369 sh->dev_cap.txpp_en = 0; 370 } 371 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET 372 DRV_LOG(DEBUG, 373 "DevX does not provide UAR offset, can't create queues for packet pacing."); 374 sh->dev_cap.txpp_en = 0; 375 #endif 376 sh->dev_cap.scatter_fcs_w_decap_disable = 377 hca_attr->scatter_fcs_w_decap_disable; 378 sh->dev_cap.rq_delay_drop_en = hca_attr->rq_delay_drop; 379 mlx5_rt_timestamp_config(sh, hca_attr); 380 #ifdef HAVE_IBV_DEVICE_ATTR_ESW_MGR_REG_C0 381 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_REG_C0) { 382 sh->dev_cap.esw_info.regc_value = dv_attr.reg_c0.value; 383 sh->dev_cap.esw_info.regc_mask = dv_attr.reg_c0.mask; 384 } 385 #else 386 sh->dev_cap.esw_info.regc_value = 0; 387 sh->dev_cap.esw_info.regc_mask = 0; 388 #endif 389 return 0; 390 } 391 392 /** 393 * Detect misc5 support or not 394 * 395 * @param[in] priv 396 * Device private data pointer 397 */ 398 #ifdef HAVE_MLX5DV_DR 399 static void 400 __mlx5_discovery_misc5_cap(struct mlx5_priv *priv) 401 { 402 #ifdef HAVE_IBV_FLOW_DV_SUPPORT 403 /* Dummy VxLAN matcher to detect rdma-core misc5 cap 404 * Case: IPv4--->UDP--->VxLAN--->vni 405 */ 406 void *tbl; 407 struct mlx5_flow_dv_match_params matcher_mask; 408 void *match_m; 409 void *matcher; 410 void *headers_m; 411 void *misc5_m; 412 uint32_t *tunnel_header_m; 413 struct mlx5dv_flow_matcher_attr dv_attr; 414 415 memset(&matcher_mask, 0, sizeof(matcher_mask)); 416 matcher_mask.size = sizeof(matcher_mask.buf); 417 match_m = matcher_mask.buf; 418 headers_m = MLX5_ADDR_OF(fte_match_param, match_m, outer_headers); 419 misc5_m = MLX5_ADDR_OF(fte_match_param, 420 match_m, misc_parameters_5); 421 tunnel_header_m = (uint32_t *) 422 MLX5_ADDR_OF(fte_match_set_misc5, 423 misc5_m, tunnel_header_1); 424 MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_protocol, 0xff); 425 MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_version, 4); 426 MLX5_SET(fte_match_set_lyr_2_4, headers_m, udp_dport, 0xffff); 427 *tunnel_header_m = 0xffffff; 428 429 tbl = mlx5_glue->dr_create_flow_tbl(priv->sh->rx_domain, 1); 430 if (!tbl) { 431 DRV_LOG(INFO, "No SW steering support"); 432 return; 433 } 434 dv_attr.type = IBV_FLOW_ATTR_NORMAL, 435 dv_attr.match_mask = (void *)&matcher_mask, 436 dv_attr.match_criteria_enable = 437 (1 << MLX5_MATCH_CRITERIA_ENABLE_OUTER_BIT) | 438 (1 << MLX5_MATCH_CRITERIA_ENABLE_MISC5_BIT); 439 dv_attr.priority = 3; 440 #ifdef HAVE_MLX5DV_DR_ESWITCH 441 void *misc2_m; 442 if (priv->sh->config.dv_esw_en) { 443 /* FDB enabled reg_c_0 */ 444 dv_attr.match_criteria_enable |= 445 (1 << MLX5_MATCH_CRITERIA_ENABLE_MISC2_BIT); 446 misc2_m = MLX5_ADDR_OF(fte_match_param, 447 match_m, misc_parameters_2); 448 MLX5_SET(fte_match_set_misc2, misc2_m, 449 metadata_reg_c_0, 0xffff); 450 } 451 #endif 452 matcher = mlx5_glue->dv_create_flow_matcher(priv->sh->cdev->ctx, 453 &dv_attr, tbl); 454 if (matcher) { 455 priv->sh->misc5_cap = 1; 456 mlx5_glue->dv_destroy_flow_matcher(matcher); 457 } 458 mlx5_glue->dr_destroy_flow_tbl(tbl); 459 #else 460 RTE_SET_USED(priv); 461 #endif 462 } 463 #endif 464 465 /** 466 * Initialize DR related data within private structure. 467 * Routine checks the reference counter and does actual 468 * resources creation/initialization only if counter is zero. 469 * 470 * @param[in] eth_dev 471 * Pointer to the device. 472 * 473 * @return 474 * Zero on success, positive error code otherwise. 475 */ 476 static int 477 mlx5_alloc_shared_dr(struct rte_eth_dev *eth_dev) 478 { 479 struct mlx5_priv *priv = eth_dev->data->dev_private; 480 struct mlx5_dev_ctx_shared *sh = priv->sh; 481 char s[MLX5_NAME_SIZE] __rte_unused; 482 int err; 483 484 MLX5_ASSERT(sh && sh->refcnt); 485 if (sh->refcnt > 1) 486 return 0; 487 err = mlx5_alloc_table_hash_list(priv); 488 if (err) 489 goto error; 490 sh->default_miss_action = 491 mlx5_glue->dr_create_flow_action_default_miss(); 492 if (!sh->default_miss_action) 493 DRV_LOG(WARNING, "Default miss action is not supported."); 494 /* The resources below are only valid with DV support. */ 495 #ifdef HAVE_IBV_FLOW_DV_SUPPORT 496 /* Init shared flex parsers list, no need lcore_share */ 497 snprintf(s, sizeof(s), "%s_flex_parsers_list", sh->ibdev_name); 498 sh->flex_parsers_dv = mlx5_list_create(s, sh, false, 499 mlx5_flex_parser_create_cb, 500 mlx5_flex_parser_match_cb, 501 mlx5_flex_parser_remove_cb, 502 mlx5_flex_parser_clone_cb, 503 mlx5_flex_parser_clone_free_cb); 504 if (!sh->flex_parsers_dv) 505 goto error; 506 if (priv->sh->config.dv_flow_en == 2) { 507 if (sh->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY && 508 sh->dv_regc0_mask) { 509 /* Reuse DV callback functions. */ 510 sh->mreg_cp_tbl = mlx5_hlist_create(MLX5_FLOW_MREG_HNAME, 511 MLX5_FLOW_MREG_HTABLE_SZ, 512 false, true, eth_dev, 513 flow_nta_mreg_create_cb, 514 flow_dv_mreg_match_cb, 515 flow_nta_mreg_remove_cb, 516 flow_dv_mreg_clone_cb, 517 flow_dv_mreg_clone_free_cb); 518 if (!sh->mreg_cp_tbl) { 519 err = ENOMEM; 520 goto error; 521 } 522 } 523 return 0; 524 } 525 /* Init port id action list. */ 526 snprintf(s, sizeof(s), "%s_port_id_action_list", sh->ibdev_name); 527 sh->port_id_action_list = mlx5_list_create(s, sh, true, 528 flow_dv_port_id_create_cb, 529 flow_dv_port_id_match_cb, 530 flow_dv_port_id_remove_cb, 531 flow_dv_port_id_clone_cb, 532 flow_dv_port_id_clone_free_cb); 533 if (!sh->port_id_action_list) 534 goto error; 535 /* Init push vlan action list. */ 536 snprintf(s, sizeof(s), "%s_push_vlan_action_list", sh->ibdev_name); 537 sh->push_vlan_action_list = mlx5_list_create(s, sh, true, 538 flow_dv_push_vlan_create_cb, 539 flow_dv_push_vlan_match_cb, 540 flow_dv_push_vlan_remove_cb, 541 flow_dv_push_vlan_clone_cb, 542 flow_dv_push_vlan_clone_free_cb); 543 if (!sh->push_vlan_action_list) 544 goto error; 545 /* Init sample action list. */ 546 snprintf(s, sizeof(s), "%s_sample_action_list", sh->ibdev_name); 547 sh->sample_action_list = mlx5_list_create(s, sh, true, 548 flow_dv_sample_create_cb, 549 flow_dv_sample_match_cb, 550 flow_dv_sample_remove_cb, 551 flow_dv_sample_clone_cb, 552 flow_dv_sample_clone_free_cb); 553 if (!sh->sample_action_list) 554 goto error; 555 /* Init dest array action list. */ 556 snprintf(s, sizeof(s), "%s_dest_array_list", sh->ibdev_name); 557 sh->dest_array_list = mlx5_list_create(s, sh, true, 558 flow_dv_dest_array_create_cb, 559 flow_dv_dest_array_match_cb, 560 flow_dv_dest_array_remove_cb, 561 flow_dv_dest_array_clone_cb, 562 flow_dv_dest_array_clone_free_cb); 563 if (!sh->dest_array_list) 564 goto error; 565 #else 566 if (priv->sh->config.dv_flow_en == 2) 567 return 0; 568 #endif 569 #ifdef HAVE_MLX5DV_DR 570 void *domain; 571 572 /* Reference counter is zero, we should initialize structures. */ 573 domain = mlx5_glue->dr_create_domain(sh->cdev->ctx, 574 MLX5DV_DR_DOMAIN_TYPE_NIC_RX); 575 if (!domain) { 576 DRV_LOG(ERR, "ingress mlx5dv_dr_create_domain failed"); 577 err = errno; 578 goto error; 579 } 580 sh->rx_domain = domain; 581 domain = mlx5_glue->dr_create_domain(sh->cdev->ctx, 582 MLX5DV_DR_DOMAIN_TYPE_NIC_TX); 583 if (!domain) { 584 DRV_LOG(ERR, "egress mlx5dv_dr_create_domain failed"); 585 err = errno; 586 goto error; 587 } 588 sh->tx_domain = domain; 589 #ifdef HAVE_MLX5DV_DR_ESWITCH 590 if (sh->config.dv_esw_en) { 591 domain = mlx5_glue->dr_create_domain(sh->cdev->ctx, 592 MLX5DV_DR_DOMAIN_TYPE_FDB); 593 if (!domain) { 594 DRV_LOG(ERR, "FDB mlx5dv_dr_create_domain failed"); 595 err = errno; 596 goto error; 597 } 598 sh->fdb_domain = domain; 599 } 600 /* 601 * The drop action is just some dummy placeholder in rdma-core. It 602 * does not belong to domains and has no any attributes, and, can be 603 * shared by the entire device. 604 */ 605 sh->dr_drop_action = mlx5_glue->dr_create_flow_action_drop(); 606 if (!sh->dr_drop_action) { 607 DRV_LOG(ERR, "FDB mlx5dv_dr_create_flow_action_drop"); 608 err = errno; 609 goto error; 610 } 611 612 if (sh->config.dv_flow_en == 1) { 613 /* Query availability of metadata reg_c's. */ 614 if (!priv->sh->metadata_regc_check_flag) { 615 err = mlx5_flow_discover_mreg_c(eth_dev); 616 if (err < 0) { 617 err = -err; 618 goto error; 619 } 620 } 621 if (!mlx5_flow_ext_mreg_supported(eth_dev)) { 622 DRV_LOG(DEBUG, 623 "port %u extensive metadata register is not supported", 624 eth_dev->data->port_id); 625 if (sh->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) { 626 DRV_LOG(ERR, "metadata mode %u is not supported " 627 "(no metadata registers available)", 628 sh->config.dv_xmeta_en); 629 err = ENOTSUP; 630 goto error; 631 } 632 } 633 if (sh->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY && 634 mlx5_flow_ext_mreg_supported(eth_dev) && sh->dv_regc0_mask) { 635 sh->mreg_cp_tbl = mlx5_hlist_create(MLX5_FLOW_MREG_HNAME, 636 MLX5_FLOW_MREG_HTABLE_SZ, 637 false, true, eth_dev, 638 flow_dv_mreg_create_cb, 639 flow_dv_mreg_match_cb, 640 flow_dv_mreg_remove_cb, 641 flow_dv_mreg_clone_cb, 642 flow_dv_mreg_clone_free_cb); 643 if (!sh->mreg_cp_tbl) { 644 err = ENOMEM; 645 goto error; 646 } 647 } 648 } 649 #endif 650 if (!sh->tunnel_hub && sh->config.dv_miss_info) 651 err = mlx5_alloc_tunnel_hub(sh); 652 if (err) { 653 DRV_LOG(ERR, "mlx5_alloc_tunnel_hub failed err=%d", err); 654 goto error; 655 } 656 if (sh->config.reclaim_mode == MLX5_RCM_AGGR) { 657 mlx5_glue->dr_reclaim_domain_memory(sh->rx_domain, 1); 658 mlx5_glue->dr_reclaim_domain_memory(sh->tx_domain, 1); 659 if (sh->fdb_domain) 660 mlx5_glue->dr_reclaim_domain_memory(sh->fdb_domain, 1); 661 } 662 sh->pop_vlan_action = mlx5_glue->dr_create_flow_action_pop_vlan(); 663 if (!sh->config.allow_duplicate_pattern) { 664 #ifndef HAVE_MLX5_DR_ALLOW_DUPLICATE 665 DRV_LOG(WARNING, "Disallow duplicate pattern is not supported - maybe old rdma-core version?"); 666 #endif 667 mlx5_glue->dr_allow_duplicate_rules(sh->rx_domain, 0); 668 mlx5_glue->dr_allow_duplicate_rules(sh->tx_domain, 0); 669 if (sh->fdb_domain) 670 mlx5_glue->dr_allow_duplicate_rules(sh->fdb_domain, 0); 671 } 672 673 __mlx5_discovery_misc5_cap(priv); 674 #endif /* HAVE_MLX5DV_DR */ 675 LIST_INIT(&sh->shared_rxqs); 676 return 0; 677 error: 678 /* Rollback the created objects. */ 679 if (sh->rx_domain) { 680 mlx5_glue->dr_destroy_domain(sh->rx_domain); 681 sh->rx_domain = NULL; 682 } 683 if (sh->tx_domain) { 684 mlx5_glue->dr_destroy_domain(sh->tx_domain); 685 sh->tx_domain = NULL; 686 } 687 if (sh->fdb_domain) { 688 mlx5_glue->dr_destroy_domain(sh->fdb_domain); 689 sh->fdb_domain = NULL; 690 } 691 if (sh->dr_drop_action) { 692 mlx5_glue->destroy_flow_action(sh->dr_drop_action); 693 sh->dr_drop_action = NULL; 694 } 695 if (sh->pop_vlan_action) { 696 mlx5_glue->destroy_flow_action(sh->pop_vlan_action); 697 sh->pop_vlan_action = NULL; 698 } 699 if (sh->encaps_decaps) { 700 mlx5_hlist_destroy(sh->encaps_decaps); 701 sh->encaps_decaps = NULL; 702 } 703 if (sh->modify_cmds) { 704 mlx5_hlist_destroy(sh->modify_cmds); 705 sh->modify_cmds = NULL; 706 } 707 if (sh->tag_table) { 708 /* tags should be destroyed with flow before. */ 709 mlx5_hlist_destroy(sh->tag_table); 710 sh->tag_table = NULL; 711 } 712 if (sh->tunnel_hub) { 713 mlx5_release_tunnel_hub(sh, priv->dev_port); 714 sh->tunnel_hub = NULL; 715 } 716 mlx5_free_table_hash_list(priv); 717 if (sh->port_id_action_list) { 718 mlx5_list_destroy(sh->port_id_action_list); 719 sh->port_id_action_list = NULL; 720 } 721 if (sh->push_vlan_action_list) { 722 mlx5_list_destroy(sh->push_vlan_action_list); 723 sh->push_vlan_action_list = NULL; 724 } 725 if (sh->sample_action_list) { 726 mlx5_list_destroy(sh->sample_action_list); 727 sh->sample_action_list = NULL; 728 } 729 if (sh->dest_array_list) { 730 mlx5_list_destroy(sh->dest_array_list); 731 sh->dest_array_list = NULL; 732 } 733 if (sh->mreg_cp_tbl) { 734 mlx5_hlist_destroy(sh->mreg_cp_tbl); 735 sh->mreg_cp_tbl = NULL; 736 } 737 return err; 738 } 739 740 /** 741 * Destroy DR related data within private structure. 742 * 743 * @param[in] priv 744 * Pointer to the private device data structure. 745 */ 746 void 747 mlx5_os_free_shared_dr(struct mlx5_priv *priv) 748 { 749 struct mlx5_dev_ctx_shared *sh = priv->sh; 750 #ifdef HAVE_MLX5DV_DR 751 int i; 752 #endif 753 754 MLX5_ASSERT(sh && sh->refcnt); 755 if (sh->refcnt > 1) 756 return; 757 MLX5_ASSERT(LIST_EMPTY(&sh->shared_rxqs)); 758 #ifdef HAVE_MLX5DV_DR 759 if (sh->rx_domain) { 760 mlx5_glue->dr_destroy_domain(sh->rx_domain); 761 sh->rx_domain = NULL; 762 } 763 if (sh->tx_domain) { 764 mlx5_glue->dr_destroy_domain(sh->tx_domain); 765 sh->tx_domain = NULL; 766 } 767 #ifdef HAVE_MLX5DV_DR_ESWITCH 768 if (sh->fdb_domain) { 769 mlx5_glue->dr_destroy_domain(sh->fdb_domain); 770 sh->fdb_domain = NULL; 771 } 772 if (sh->dr_drop_action) { 773 mlx5_glue->destroy_flow_action(sh->dr_drop_action); 774 sh->dr_drop_action = NULL; 775 } 776 #endif 777 if (sh->pop_vlan_action) { 778 mlx5_glue->destroy_flow_action(sh->pop_vlan_action); 779 sh->pop_vlan_action = NULL; 780 } 781 for (i = 0; i < MLX5DR_TABLE_TYPE_MAX; i++) { 782 if (sh->send_to_kernel_action[i].action) { 783 void *action = sh->send_to_kernel_action[i].action; 784 785 mlx5_glue->destroy_flow_action(action); 786 sh->send_to_kernel_action[i].action = NULL; 787 } 788 if (sh->send_to_kernel_action[i].tbl) { 789 struct mlx5_flow_tbl_resource *tbl = 790 sh->send_to_kernel_action[i].tbl; 791 792 flow_dv_tbl_resource_release(sh, tbl); 793 sh->send_to_kernel_action[i].tbl = NULL; 794 } 795 } 796 #endif /* HAVE_MLX5DV_DR */ 797 if (sh->default_miss_action) 798 mlx5_glue->destroy_flow_action 799 (sh->default_miss_action); 800 if (sh->encaps_decaps) { 801 mlx5_hlist_destroy(sh->encaps_decaps); 802 sh->encaps_decaps = NULL; 803 } 804 if (sh->modify_cmds) { 805 mlx5_hlist_destroy(sh->modify_cmds); 806 sh->modify_cmds = NULL; 807 } 808 if (sh->tag_table) { 809 /* tags should be destroyed with flow before. */ 810 mlx5_hlist_destroy(sh->tag_table); 811 sh->tag_table = NULL; 812 } 813 if (sh->tunnel_hub) { 814 mlx5_release_tunnel_hub(sh, priv->dev_port); 815 sh->tunnel_hub = NULL; 816 } 817 mlx5_free_table_hash_list(priv); 818 if (sh->port_id_action_list) { 819 mlx5_list_destroy(sh->port_id_action_list); 820 sh->port_id_action_list = NULL; 821 } 822 if (sh->push_vlan_action_list) { 823 mlx5_list_destroy(sh->push_vlan_action_list); 824 sh->push_vlan_action_list = NULL; 825 } 826 if (sh->sample_action_list) { 827 mlx5_list_destroy(sh->sample_action_list); 828 sh->sample_action_list = NULL; 829 } 830 if (sh->dest_array_list) { 831 mlx5_list_destroy(sh->dest_array_list); 832 sh->dest_array_list = NULL; 833 } 834 if (sh->mreg_cp_tbl) { 835 mlx5_hlist_destroy(sh->mreg_cp_tbl); 836 sh->mreg_cp_tbl = NULL; 837 } 838 } 839 840 /** 841 * Initialize shared data between primary and secondary process. 842 * 843 * A memzone is reserved by primary process and secondary processes attach to 844 * the memzone. 845 * 846 * @return 847 * 0 on success, a negative errno value otherwise and rte_errno is set. 848 */ 849 static int 850 mlx5_init_shared_data(void) 851 { 852 const struct rte_memzone *mz; 853 int ret = 0; 854 855 rte_spinlock_lock(&mlx5_shared_data_lock); 856 if (mlx5_shared_data == NULL) { 857 if (rte_eal_process_type() == RTE_PROC_PRIMARY) { 858 /* Allocate shared memory. */ 859 mz = rte_memzone_reserve(MZ_MLX5_PMD_SHARED_DATA, 860 sizeof(*mlx5_shared_data), 861 SOCKET_ID_ANY, 0); 862 if (mz == NULL) { 863 DRV_LOG(ERR, 864 "Cannot allocate mlx5 shared data"); 865 ret = -rte_errno; 866 goto error; 867 } 868 mlx5_shared_data = mz->addr; 869 memset(mlx5_shared_data, 0, sizeof(*mlx5_shared_data)); 870 rte_spinlock_init(&mlx5_shared_data->lock); 871 } else { 872 /* Lookup allocated shared memory. */ 873 mz = rte_memzone_lookup(MZ_MLX5_PMD_SHARED_DATA); 874 if (mz == NULL) { 875 DRV_LOG(ERR, 876 "Cannot attach mlx5 shared data"); 877 ret = -rte_errno; 878 goto error; 879 } 880 mlx5_shared_data = mz->addr; 881 memset(&mlx5_local_data, 0, sizeof(mlx5_local_data)); 882 } 883 } 884 error: 885 rte_spinlock_unlock(&mlx5_shared_data_lock); 886 return ret; 887 } 888 889 /** 890 * PMD global initialization. 891 * 892 * Independent from individual device, this function initializes global 893 * per-PMD data structures distinguishing primary and secondary processes. 894 * Hence, each initialization is called once per a process. 895 * 896 * @return 897 * 0 on success, a negative errno value otherwise and rte_errno is set. 898 */ 899 static int 900 mlx5_init_once(void) 901 { 902 struct mlx5_shared_data *sd; 903 struct mlx5_local_data *ld = &mlx5_local_data; 904 int ret = 0; 905 906 if (mlx5_init_shared_data()) 907 return -rte_errno; 908 sd = mlx5_shared_data; 909 MLX5_ASSERT(sd); 910 rte_spinlock_lock(&sd->lock); 911 switch (rte_eal_process_type()) { 912 case RTE_PROC_PRIMARY: 913 if (sd->init_done) 914 break; 915 ret = mlx5_mp_init_primary(MLX5_MP_NAME, 916 mlx5_mp_os_primary_handle); 917 if (ret) 918 goto out; 919 sd->init_done = true; 920 break; 921 case RTE_PROC_SECONDARY: 922 if (ld->init_done) 923 break; 924 ret = mlx5_mp_init_secondary(MLX5_MP_NAME, 925 mlx5_mp_os_secondary_handle); 926 if (ret) 927 goto out; 928 ++sd->secondary_cnt; 929 ld->init_done = true; 930 break; 931 default: 932 break; 933 } 934 out: 935 rte_spinlock_unlock(&sd->lock); 936 return ret; 937 } 938 939 /** 940 * DR flow drop action support detect. 941 * 942 * @param dev 943 * Pointer to rte_eth_dev structure. 944 * 945 */ 946 static void 947 mlx5_flow_drop_action_config(struct rte_eth_dev *dev __rte_unused) 948 { 949 #ifdef HAVE_MLX5DV_DR 950 struct mlx5_priv *priv = dev->data->dev_private; 951 952 if (!priv->sh->config.dv_flow_en || !priv->sh->dr_drop_action) 953 return; 954 /** 955 * DR supports drop action placeholder when it is supported; 956 * otherwise, use the queue drop action. 957 */ 958 if (!priv->sh->drop_action_check_flag) { 959 if (!mlx5_flow_discover_dr_action_support(dev)) 960 priv->sh->dr_root_drop_action_en = 1; 961 priv->sh->drop_action_check_flag = 1; 962 } 963 if (priv->sh->dr_root_drop_action_en) 964 priv->root_drop_action = priv->sh->dr_drop_action; 965 else 966 priv->root_drop_action = priv->drop_queue.hrxq->action; 967 #endif 968 } 969 970 static void 971 mlx5_queue_counter_id_prepare(struct rte_eth_dev *dev) 972 { 973 struct mlx5_priv *priv = dev->data->dev_private; 974 void *ctx = priv->sh->cdev->ctx; 975 976 priv->q_counters = mlx5_devx_cmd_queue_counter_alloc(ctx); 977 if (!priv->q_counters) { 978 struct ibv_cq *cq = mlx5_glue->create_cq(ctx, 1, NULL, NULL, 0); 979 struct ibv_wq *wq; 980 981 DRV_LOG(DEBUG, "Port %d queue counter object cannot be created " 982 "by DevX - fall-back to use the kernel driver global " 983 "queue counter.", dev->data->port_id); 984 priv->q_counters_allocation_failure = 1; 985 986 /* Create WQ by kernel and query its queue counter ID. */ 987 if (cq) { 988 wq = mlx5_glue->create_wq(ctx, 989 &(struct ibv_wq_init_attr){ 990 .wq_type = IBV_WQT_RQ, 991 .max_wr = 1, 992 .max_sge = 1, 993 .pd = priv->sh->cdev->pd, 994 .cq = cq, 995 }); 996 if (wq) { 997 /* Counter is assigned only on RDY state. */ 998 int ret = mlx5_glue->modify_wq(wq, 999 &(struct ibv_wq_attr){ 1000 .attr_mask = IBV_WQ_ATTR_STATE, 1001 .wq_state = IBV_WQS_RDY, 1002 }); 1003 1004 if (ret == 0) 1005 mlx5_devx_cmd_wq_query(wq, 1006 &priv->counter_set_id); 1007 claim_zero(mlx5_glue->destroy_wq(wq)); 1008 } 1009 claim_zero(mlx5_glue->destroy_cq(cq)); 1010 } 1011 } else { 1012 priv->counter_set_id = priv->q_counters->id; 1013 } 1014 if (priv->counter_set_id == 0) 1015 DRV_LOG(INFO, "Part of the port %d statistics will not be " 1016 "available.", dev->data->port_id); 1017 } 1018 1019 /** 1020 * Check if representor spawn info match devargs. 1021 * 1022 * @param spawn 1023 * Verbs device parameters (name, port, switch_info) to spawn. 1024 * @param eth_da 1025 * Device devargs to probe. 1026 * 1027 * @return 1028 * Match result. 1029 */ 1030 static bool 1031 mlx5_representor_match(struct mlx5_dev_spawn_data *spawn, 1032 struct rte_eth_devargs *eth_da) 1033 { 1034 struct mlx5_switch_info *switch_info = &spawn->info; 1035 unsigned int p, f; 1036 uint16_t id; 1037 uint16_t repr_id = mlx5_representor_id_encode(switch_info, 1038 eth_da->type); 1039 1040 /* 1041 * Assuming Multiport E-Switch device was detected, 1042 * if spawned port is an uplink, check if the port 1043 * was requested through representor devarg. 1044 */ 1045 if (mlx5_is_probed_port_on_mpesw_device(spawn) && 1046 switch_info->name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK) { 1047 for (p = 0; p < eth_da->nb_ports; ++p) 1048 if (switch_info->port_name == eth_da->ports[p]) 1049 return true; 1050 rte_errno = EBUSY; 1051 return false; 1052 } 1053 switch (eth_da->type) { 1054 case RTE_ETH_REPRESENTOR_PF: 1055 /* 1056 * PF representors provided in devargs translate to uplink ports, but 1057 * if and only if the device is a part of MPESW device. 1058 */ 1059 if (!mlx5_is_probed_port_on_mpesw_device(spawn)) { 1060 rte_errno = EBUSY; 1061 return false; 1062 } 1063 break; 1064 case RTE_ETH_REPRESENTOR_SF: 1065 if (!(spawn->info.port_name == -1 && 1066 switch_info->name_type == 1067 MLX5_PHYS_PORT_NAME_TYPE_PFHPF) && 1068 switch_info->name_type != MLX5_PHYS_PORT_NAME_TYPE_PFSF) { 1069 rte_errno = EBUSY; 1070 return false; 1071 } 1072 break; 1073 case RTE_ETH_REPRESENTOR_VF: 1074 /* Allows HPF representor index -1 as exception. */ 1075 if (!(spawn->info.port_name == -1 && 1076 switch_info->name_type == 1077 MLX5_PHYS_PORT_NAME_TYPE_PFHPF) && 1078 switch_info->name_type != MLX5_PHYS_PORT_NAME_TYPE_PFVF) { 1079 rte_errno = EBUSY; 1080 return false; 1081 } 1082 break; 1083 case RTE_ETH_REPRESENTOR_NONE: 1084 rte_errno = EBUSY; 1085 return false; 1086 default: 1087 rte_errno = ENOTSUP; 1088 DRV_LOG(ERR, "unsupported representor type"); 1089 return false; 1090 } 1091 /* Check representor ID: */ 1092 for (p = 0; p < eth_da->nb_ports; ++p) { 1093 if (!mlx5_is_probed_port_on_mpesw_device(spawn) && spawn->pf_bond < 0) { 1094 /* For non-LAG mode, allow and ignore pf. */ 1095 switch_info->pf_num = eth_da->ports[p]; 1096 repr_id = mlx5_representor_id_encode(switch_info, 1097 eth_da->type); 1098 } 1099 for (f = 0; f < eth_da->nb_representor_ports; ++f) { 1100 id = MLX5_REPRESENTOR_ID 1101 (eth_da->ports[p], eth_da->type, 1102 eth_da->representor_ports[f]); 1103 if (repr_id == id) 1104 return true; 1105 } 1106 } 1107 rte_errno = EBUSY; 1108 return false; 1109 } 1110 1111 /** 1112 * Spawn an Ethernet device from Verbs information. 1113 * 1114 * @param dpdk_dev 1115 * Backing DPDK device. 1116 * @param spawn 1117 * Verbs device parameters (name, port, switch_info) to spawn. 1118 * @param eth_da 1119 * Device arguments. 1120 * @param mkvlist 1121 * Pointer to mlx5 kvargs control, can be NULL if there is no devargs. 1122 * 1123 * @return 1124 * A valid Ethernet device object on success, NULL otherwise and rte_errno 1125 * is set. The following errors are defined: 1126 * 1127 * EBUSY: device is not supposed to be spawned. 1128 * EEXIST: device is already spawned 1129 */ 1130 static struct rte_eth_dev * 1131 mlx5_dev_spawn(struct rte_device *dpdk_dev, 1132 struct mlx5_dev_spawn_data *spawn, 1133 struct rte_eth_devargs *eth_da, 1134 struct mlx5_kvargs_ctrl *mkvlist) 1135 { 1136 const struct mlx5_switch_info *switch_info = &spawn->info; 1137 struct mlx5_dev_ctx_shared *sh = NULL; 1138 struct ibv_port_attr port_attr = { .state = IBV_PORT_NOP }; 1139 struct rte_eth_dev *eth_dev = NULL; 1140 struct mlx5_priv *priv = NULL; 1141 int err = 0; 1142 struct rte_ether_addr mac; 1143 char name[RTE_ETH_NAME_MAX_LEN]; 1144 int own_domain_id = 0; 1145 uint16_t port_id; 1146 struct mlx5_port_info vport_info = { .query_flags = 0 }; 1147 int nl_rdma; 1148 int i; 1149 struct mlx5_indexed_pool_config icfg[RTE_DIM(default_icfg)]; 1150 1151 memcpy(icfg, default_icfg, sizeof(icfg)); 1152 /* Determine if this port representor is supposed to be spawned. */ 1153 if (switch_info->representor && dpdk_dev->devargs && 1154 !mlx5_representor_match(spawn, eth_da)) 1155 return NULL; 1156 /* Build device name. */ 1157 if (spawn->pf_bond >= 0) { 1158 /* Bonding device. */ 1159 if (!switch_info->representor) { 1160 err = snprintf(name, sizeof(name), "%s_%s", 1161 dpdk_dev->name, spawn->phys_dev_name); 1162 } else { 1163 err = snprintf(name, sizeof(name), "%s_%s_representor_c%dpf%d%s%u", 1164 dpdk_dev->name, spawn->phys_dev_name, 1165 switch_info->ctrl_num, 1166 switch_info->pf_num, 1167 switch_info->name_type == 1168 MLX5_PHYS_PORT_NAME_TYPE_PFSF ? "sf" : "vf", 1169 switch_info->port_name); 1170 } 1171 } else if (mlx5_is_probed_port_on_mpesw_device(spawn)) { 1172 /* MPESW device. */ 1173 if (switch_info->name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK) { 1174 err = snprintf(name, sizeof(name), "%s_p%d", 1175 dpdk_dev->name, spawn->mpesw_port); 1176 } else { 1177 err = snprintf(name, sizeof(name), "%s_representor_c%dpf%d%s%u", 1178 dpdk_dev->name, 1179 switch_info->ctrl_num, 1180 switch_info->pf_num, 1181 switch_info->name_type == 1182 MLX5_PHYS_PORT_NAME_TYPE_PFSF ? "sf" : "vf", 1183 switch_info->port_name); 1184 } 1185 } else { 1186 /* Single device. */ 1187 if (!switch_info->representor) 1188 strlcpy(name, dpdk_dev->name, sizeof(name)); 1189 else 1190 err = snprintf(name, sizeof(name), "%s_representor_%s%u", 1191 dpdk_dev->name, 1192 switch_info->name_type == 1193 MLX5_PHYS_PORT_NAME_TYPE_PFSF ? "sf" : "vf", 1194 switch_info->port_name); 1195 } 1196 if (err >= (int)sizeof(name)) 1197 DRV_LOG(WARNING, "device name overflow %s", name); 1198 /* check if the device is already spawned */ 1199 if (rte_eth_dev_get_port_by_name(name, &port_id) == 0) { 1200 /* 1201 * When device is already spawned, its devargs should be set 1202 * as used. otherwise, mlx5_kvargs_validate() will fail. 1203 */ 1204 if (mkvlist) 1205 mlx5_port_args_set_used(name, port_id, mkvlist); 1206 rte_errno = EEXIST; 1207 return NULL; 1208 } 1209 DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name); 1210 if (rte_eal_process_type() == RTE_PROC_SECONDARY) { 1211 struct mlx5_mp_id mp_id; 1212 int fd; 1213 1214 eth_dev = rte_eth_dev_attach_secondary(name); 1215 if (eth_dev == NULL) { 1216 DRV_LOG(ERR, "can not attach rte ethdev"); 1217 rte_errno = ENOMEM; 1218 return NULL; 1219 } 1220 eth_dev->device = dpdk_dev; 1221 eth_dev->dev_ops = &mlx5_dev_sec_ops; 1222 eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status; 1223 eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status; 1224 err = mlx5_proc_priv_init(eth_dev); 1225 if (err) 1226 return NULL; 1227 mlx5_mp_id_init(&mp_id, eth_dev->data->port_id); 1228 /* Receive command fd from primary process */ 1229 fd = mlx5_mp_req_verbs_cmd_fd(&mp_id); 1230 if (fd < 0) 1231 goto err_secondary; 1232 /* Remap UAR for Tx queues. */ 1233 err = mlx5_tx_uar_init_secondary(eth_dev, fd); 1234 close(fd); 1235 if (err) 1236 goto err_secondary; 1237 /* 1238 * Ethdev pointer is still required as input since 1239 * the primary device is not accessible from the 1240 * secondary process. 1241 */ 1242 eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev); 1243 eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev); 1244 return eth_dev; 1245 err_secondary: 1246 mlx5_dev_close(eth_dev); 1247 return NULL; 1248 } 1249 sh = mlx5_alloc_shared_dev_ctx(spawn, mkvlist); 1250 if (!sh) 1251 return NULL; 1252 nl_rdma = mlx5_nl_init(NETLINK_RDMA, 0); 1253 /* Check port status. */ 1254 if (spawn->phys_port <= UINT8_MAX) { 1255 /* Legacy Verbs api only support u8 port number. */ 1256 err = mlx5_glue->query_port(sh->cdev->ctx, spawn->phys_port, 1257 &port_attr); 1258 if (err) { 1259 DRV_LOG(ERR, "port query failed: %s", strerror(err)); 1260 goto error; 1261 } 1262 if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) { 1263 DRV_LOG(ERR, "port is not configured in Ethernet mode"); 1264 err = EINVAL; 1265 goto error; 1266 } 1267 } else if (nl_rdma >= 0) { 1268 /* IB doesn't allow more than 255 ports, must be Ethernet. */ 1269 err = mlx5_nl_port_state(nl_rdma, 1270 spawn->phys_dev_name, 1271 spawn->phys_port); 1272 if (err < 0) { 1273 DRV_LOG(INFO, "Failed to get netlink port state: %s", 1274 strerror(rte_errno)); 1275 err = -rte_errno; 1276 goto error; 1277 } 1278 port_attr.state = (enum ibv_port_state)err; 1279 } 1280 if (port_attr.state != IBV_PORT_ACTIVE) 1281 DRV_LOG(INFO, "port is not active: \"%s\" (%d)", 1282 mlx5_glue->port_state_str(port_attr.state), 1283 port_attr.state); 1284 /* Allocate private eth device data. */ 1285 priv = mlx5_malloc(MLX5_MEM_ZERO | MLX5_MEM_RTE, 1286 sizeof(*priv), 1287 RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY); 1288 if (priv == NULL) { 1289 DRV_LOG(ERR, "priv allocation failure"); 1290 err = ENOMEM; 1291 goto error; 1292 } 1293 /* 1294 * When user configures remote PD and CTX and device creates RxQ by 1295 * DevX, external RxQ is both supported and requested. 1296 */ 1297 if (mlx5_imported_pd_and_ctx(sh->cdev) && mlx5_devx_obj_ops_en(sh)) { 1298 priv->ext_rxqs = mlx5_malloc(MLX5_MEM_ZERO | MLX5_MEM_RTE, 1299 sizeof(struct mlx5_external_q) * 1300 MLX5_MAX_EXT_RX_QUEUES, 0, 1301 SOCKET_ID_ANY); 1302 if (priv->ext_rxqs == NULL) { 1303 DRV_LOG(ERR, "Fail to allocate external RxQ array."); 1304 err = ENOMEM; 1305 goto error; 1306 } 1307 priv->ext_txqs = mlx5_malloc(MLX5_MEM_ZERO | MLX5_MEM_RTE, 1308 sizeof(struct mlx5_external_q) * 1309 MLX5_MAX_EXT_TX_QUEUES, 0, 1310 SOCKET_ID_ANY); 1311 if (priv->ext_txqs == NULL) { 1312 DRV_LOG(ERR, "Fail to allocate external TxQ array."); 1313 err = ENOMEM; 1314 goto error; 1315 } 1316 DRV_LOG(DEBUG, "External queue is supported."); 1317 } 1318 priv->sh = sh; 1319 priv->dev_port = spawn->phys_port; 1320 priv->pci_dev = spawn->pci_dev; 1321 priv->mtu = RTE_ETHER_MTU; 1322 /* Some internal functions rely on Netlink sockets, open them now. */ 1323 priv->nl_socket_rdma = nl_rdma; 1324 priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE, 0); 1325 priv->representor = !!switch_info->representor; 1326 priv->master = !!switch_info->master; 1327 priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID; 1328 priv->vport_meta_tag = 0; 1329 priv->vport_meta_mask = 0; 1330 priv->pf_bond = spawn->pf_bond; 1331 priv->mpesw_port = spawn->mpesw_port; 1332 priv->mpesw_uplink = false; 1333 priv->mpesw_owner = spawn->info.mpesw_owner; 1334 if (mlx5_is_port_on_mpesw_device(priv)) 1335 priv->mpesw_uplink = (spawn->info.name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK); 1336 1337 DRV_LOG(DEBUG, 1338 "dev_port=%u bus=%s pci=%s master=%d representor=%d pf_bond=%d " 1339 "mpesw_port=%d mpesw_uplink=%d", 1340 priv->dev_port, dpdk_dev->bus->name, 1341 priv->pci_dev ? priv->pci_dev->name : "NONE", 1342 priv->master, priv->representor, priv->pf_bond, 1343 priv->mpesw_port, priv->mpesw_uplink); 1344 1345 if (mlx5_is_port_on_mpesw_device(priv) && priv->sh->config.dv_flow_en != 2) { 1346 DRV_LOG(ERR, "MPESW device is supported only with HWS"); 1347 err = ENOTSUP; 1348 goto error; 1349 } 1350 /* 1351 * If we have E-Switch we should determine the vport attributes. 1352 * E-Switch may use either source vport field or reg_c[0] metadata 1353 * register to match on vport index. The engaged part of metadata 1354 * register is defined by mask. 1355 */ 1356 if (sh->esw_mode) { 1357 err = mlx5_glue->devx_port_query(sh->cdev->ctx, 1358 spawn->phys_port, 1359 &vport_info); 1360 if (err) { 1361 DRV_LOG(WARNING, 1362 "Cannot query devx port %d on device %s", 1363 spawn->phys_port, spawn->phys_dev_name); 1364 vport_info.query_flags = 0; 1365 } 1366 } 1367 if (vport_info.query_flags & MLX5_PORT_QUERY_REG_C0) { 1368 priv->vport_meta_tag = vport_info.vport_meta_tag; 1369 priv->vport_meta_mask = vport_info.vport_meta_mask; 1370 if (!priv->vport_meta_mask) { 1371 DRV_LOG(ERR, 1372 "vport zero mask for port %d on bonding device %s", 1373 spawn->phys_port, spawn->phys_dev_name); 1374 err = ENOTSUP; 1375 goto error; 1376 } 1377 if (priv->vport_meta_tag & ~priv->vport_meta_mask) { 1378 DRV_LOG(ERR, 1379 "Invalid vport tag for port %d on bonding device %s", 1380 spawn->phys_port, spawn->phys_dev_name); 1381 err = ENOTSUP; 1382 goto error; 1383 } 1384 } 1385 if (vport_info.query_flags & MLX5_PORT_QUERY_VPORT) { 1386 priv->vport_id = vport_info.vport_id; 1387 } else if (spawn->pf_bond >= 0 && sh->esw_mode) { 1388 DRV_LOG(ERR, 1389 "Cannot deduce vport index for port %d on bonding device %s", 1390 spawn->phys_port, spawn->phys_dev_name); 1391 err = ENOTSUP; 1392 goto error; 1393 } else { 1394 /* 1395 * Suppose vport index in compatible way. Kernel/rdma_core 1396 * support single E-Switch per PF configurations only and 1397 * vport_id field contains the vport index for associated VF, 1398 * which is deduced from representor port name. 1399 * For example, let's have the IB device port 10, it has 1400 * attached network device eth0, which has port name attribute 1401 * pf0vf2, we can deduce the VF number as 2, and set vport index 1402 * as 3 (2+1). This assigning schema should be changed if the 1403 * multiple E-Switch instances per PF configurations or/and PCI 1404 * subfunctions are added. 1405 */ 1406 priv->vport_id = switch_info->representor ? 1407 switch_info->port_name + 1 : -1; 1408 } 1409 priv->representor_id = mlx5_representor_id_encode(switch_info, 1410 eth_da->type); 1411 /* 1412 * Look for sibling devices in order to reuse their switch domain 1413 * if any, otherwise allocate one. 1414 */ 1415 MLX5_ETH_FOREACH_DEV(port_id, dpdk_dev) { 1416 const struct mlx5_priv *opriv = 1417 rte_eth_devices[port_id].data->dev_private; 1418 1419 if (!opriv || 1420 opriv->sh != priv->sh || 1421 opriv->domain_id == 1422 RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) 1423 continue; 1424 priv->domain_id = opriv->domain_id; 1425 DRV_LOG(DEBUG, "dev_port-%u inherit domain_id=%u\n", 1426 priv->dev_port, priv->domain_id); 1427 break; 1428 } 1429 if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) { 1430 err = rte_eth_switch_domain_alloc(&priv->domain_id); 1431 if (err) { 1432 err = rte_errno; 1433 DRV_LOG(ERR, "unable to allocate switch domain: %s", 1434 strerror(rte_errno)); 1435 goto error; 1436 } 1437 own_domain_id = 1; 1438 DRV_LOG(DEBUG, "dev_port-%u new domain_id=%u\n", 1439 priv->dev_port, priv->domain_id); 1440 } 1441 if (sh->cdev->config.devx) { 1442 struct mlx5_hca_attr *hca_attr = &sh->cdev->config.hca_attr; 1443 1444 sh->steering_format_version = hca_attr->steering_format_version; 1445 #if defined(HAVE_MLX5_DR_CREATE_ACTION_ASO_EXT) 1446 if (hca_attr->qos.sup && hca_attr->qos.flow_meter_old && 1447 sh->config.dv_flow_en) { 1448 if (sh->registers.aso_reg != REG_NON) { 1449 priv->mtr_en = 1; 1450 priv->mtr_reg_share = hca_attr->qos.flow_meter; 1451 } 1452 } 1453 if (hca_attr->qos.sup && hca_attr->qos.flow_meter_aso_sup) { 1454 uint32_t log_obj_size = 1455 rte_log2_u32(MLX5_ASO_MTRS_PER_POOL >> 1); 1456 if (log_obj_size >= 1457 hca_attr->qos.log_meter_aso_granularity && 1458 log_obj_size <= 1459 hca_attr->qos.log_meter_aso_max_alloc) 1460 sh->meter_aso_en = 1; 1461 } 1462 if (priv->mtr_en) { 1463 err = mlx5_aso_flow_mtrs_mng_init(priv->sh); 1464 if (err) { 1465 err = -err; 1466 goto error; 1467 } 1468 } 1469 if (hca_attr->flow.tunnel_header_0_1) 1470 sh->tunnel_header_0_1 = 1; 1471 if (hca_attr->flow.tunnel_header_2_3) 1472 sh->tunnel_header_2_3 = 1; 1473 #endif /* HAVE_MLX5_DR_CREATE_ACTION_ASO_EXT */ 1474 #ifdef HAVE_MLX5_DR_CREATE_ACTION_ASO 1475 if (hca_attr->flow_hit_aso && sh->registers.aso_reg == REG_C_3) { 1476 sh->flow_hit_aso_en = 1; 1477 err = mlx5_flow_aso_age_mng_init(sh); 1478 if (err) { 1479 err = -err; 1480 goto error; 1481 } 1482 DRV_LOG(DEBUG, "Flow Hit ASO is supported."); 1483 } 1484 #endif /* HAVE_MLX5_DR_CREATE_ACTION_ASO */ 1485 #if defined (HAVE_MLX5_DR_CREATE_ACTION_ASO) && \ 1486 defined (HAVE_MLX5_DR_ACTION_ASO_CT) 1487 /* HWS create CT ASO SQ based on HWS configure queue number. */ 1488 if (sh->config.dv_flow_en != 2 && 1489 hca_attr->ct_offload && sh->registers.aso_reg == REG_C_3) { 1490 err = mlx5_flow_aso_ct_mng_init(sh); 1491 if (err) { 1492 err = -err; 1493 goto error; 1494 } 1495 DRV_LOG(DEBUG, "CT ASO is supported."); 1496 sh->ct_aso_en = 1; 1497 } 1498 #endif /* HAVE_MLX5_DR_CREATE_ACTION_ASO && HAVE_MLX5_DR_ACTION_ASO_CT */ 1499 #if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE) 1500 if (hca_attr->log_max_ft_sampler_num > 0 && 1501 sh->config.dv_flow_en) { 1502 priv->sampler_en = 1; 1503 DRV_LOG(DEBUG, "Sampler enabled!"); 1504 } else { 1505 priv->sampler_en = 0; 1506 if (!hca_attr->log_max_ft_sampler_num) 1507 DRV_LOG(WARNING, 1508 "No available register for sampler."); 1509 else 1510 DRV_LOG(DEBUG, "DV flow is not supported!"); 1511 } 1512 #endif 1513 if (hca_attr->lag_rx_port_affinity) { 1514 sh->lag_rx_port_affinity_en = 1; 1515 DRV_LOG(DEBUG, "LAG Rx Port Affinity enabled"); 1516 } 1517 priv->num_lag_ports = hca_attr->num_lag_ports; 1518 DRV_LOG(DEBUG, "The number of lag ports is %d", priv->num_lag_ports); 1519 } 1520 /* Process parameters and store port configuration on priv structure. */ 1521 err = mlx5_port_args_config(priv, mkvlist, &priv->config); 1522 if (err) { 1523 err = rte_errno; 1524 DRV_LOG(ERR, "Failed to process port configure: %s", 1525 strerror(rte_errno)); 1526 goto error; 1527 } 1528 eth_dev = rte_eth_dev_allocate(name); 1529 if (eth_dev == NULL) { 1530 DRV_LOG(ERR, "can not allocate rte ethdev"); 1531 err = ENOMEM; 1532 goto error; 1533 } 1534 if (priv->representor) { 1535 eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR; 1536 eth_dev->data->representor_id = priv->representor_id; 1537 MLX5_ETH_FOREACH_DEV(port_id, dpdk_dev) { 1538 struct mlx5_priv *opriv = 1539 rte_eth_devices[port_id].data->dev_private; 1540 if (opriv && 1541 opriv->master && 1542 opriv->domain_id == priv->domain_id && 1543 opriv->sh == priv->sh) { 1544 eth_dev->data->backer_port_id = port_id; 1545 break; 1546 } 1547 } 1548 if (port_id >= RTE_MAX_ETHPORTS) 1549 eth_dev->data->backer_port_id = eth_dev->data->port_id; 1550 } 1551 priv->mp_id.port_id = eth_dev->data->port_id; 1552 strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN); 1553 /* 1554 * Store associated network device interface index. This index 1555 * is permanent throughout the lifetime of device. So, we may store 1556 * the ifindex here and use the cached value further. 1557 */ 1558 MLX5_ASSERT(spawn->ifindex); 1559 priv->if_index = spawn->ifindex; 1560 priv->lag_affinity_idx = sh->refcnt - 1; 1561 eth_dev->data->dev_private = priv; 1562 priv->dev_data = eth_dev->data; 1563 eth_dev->data->mac_addrs = priv->mac; 1564 eth_dev->device = dpdk_dev; 1565 eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS; 1566 /* Configure the first MAC address by default. */ 1567 if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) { 1568 DRV_LOG(ERR, 1569 "port %u cannot get MAC address, is mlx5_en" 1570 " loaded? (errno: %s)", 1571 eth_dev->data->port_id, strerror(rte_errno)); 1572 err = ENODEV; 1573 goto error; 1574 } 1575 DRV_LOG(INFO, 1576 "port %u MAC address is " RTE_ETHER_ADDR_PRT_FMT, 1577 eth_dev->data->port_id, RTE_ETHER_ADDR_BYTES(&mac)); 1578 #ifdef RTE_LIBRTE_MLX5_DEBUG 1579 { 1580 char ifname[MLX5_NAMESIZE]; 1581 1582 if (mlx5_get_ifname(eth_dev, &ifname) == 0) 1583 DRV_LOG(DEBUG, "port %u ifname is \"%s\"", 1584 eth_dev->data->port_id, ifname); 1585 else 1586 DRV_LOG(DEBUG, "port %u ifname is unknown", 1587 eth_dev->data->port_id); 1588 } 1589 #endif 1590 /* Get actual MTU if possible. */ 1591 err = mlx5_get_mtu(eth_dev, &priv->mtu); 1592 if (err) { 1593 err = rte_errno; 1594 goto error; 1595 } 1596 DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id, 1597 priv->mtu); 1598 /* Initialize burst functions to prevent crashes before link-up. */ 1599 eth_dev->rx_pkt_burst = rte_eth_pkt_burst_dummy; 1600 eth_dev->tx_pkt_burst = rte_eth_pkt_burst_dummy; 1601 eth_dev->dev_ops = &mlx5_dev_ops; 1602 eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status; 1603 eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status; 1604 eth_dev->rx_queue_count = mlx5_rx_queue_count; 1605 /* Register MAC address. */ 1606 claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0)); 1607 if (sh->dev_cap.vf && sh->config.vf_nl_en) 1608 mlx5_nl_mac_addr_sync(priv->nl_socket_route, 1609 mlx5_ifindex(eth_dev), 1610 eth_dev->data->mac_addrs, 1611 MLX5_MAX_MAC_ADDRESSES); 1612 priv->ctrl_flows = 0; 1613 rte_spinlock_init(&priv->flow_list_lock); 1614 TAILQ_INIT(&priv->flow_meters); 1615 if (priv->mtr_en) { 1616 priv->mtr_profile_tbl = mlx5_l3t_create(MLX5_L3T_TYPE_PTR); 1617 if (!priv->mtr_profile_tbl) 1618 goto error; 1619 } 1620 /* Bring Ethernet device up. */ 1621 DRV_LOG(DEBUG, "port %u forcing Ethernet interface up", 1622 eth_dev->data->port_id); 1623 /* Read link status in case it is up and there will be no event. */ 1624 mlx5_link_update(eth_dev, 0); 1625 /* Watch LSC interrupts between port probe and port start. */ 1626 priv->sh->port[priv->dev_port - 1].nl_ih_port_id = 1627 eth_dev->data->port_id; 1628 mlx5_set_link_up(eth_dev); 1629 for (i = 0; i < MLX5_FLOW_TYPE_MAXI; i++) { 1630 icfg[i].release_mem_en = !!sh->config.reclaim_mode; 1631 if (sh->config.reclaim_mode) 1632 icfg[i].per_core_cache = 0; 1633 #ifdef HAVE_MLX5_HWS_SUPPORT 1634 if (priv->sh->config.dv_flow_en == 2) 1635 icfg[i].size = sizeof(struct rte_flow_hw) + sizeof(struct rte_flow_nt2hws); 1636 #endif 1637 priv->flows[i] = mlx5_ipool_create(&icfg[i]); 1638 if (!priv->flows[i]) 1639 goto error; 1640 } 1641 /* Create context for virtual machine VLAN workaround. */ 1642 priv->vmwa_context = mlx5_vlan_vmwa_init(eth_dev, spawn->ifindex); 1643 if (mlx5_devx_obj_ops_en(sh)) { 1644 priv->obj_ops = devx_obj_ops; 1645 mlx5_queue_counter_id_prepare(eth_dev); 1646 priv->obj_ops.lb_dummy_queue_create = 1647 mlx5_rxq_ibv_obj_dummy_lb_create; 1648 priv->obj_ops.lb_dummy_queue_release = 1649 mlx5_rxq_ibv_obj_dummy_lb_release; 1650 } else if (spawn->max_port > UINT8_MAX) { 1651 /* Verbs can't support ports larger than 255 by design. */ 1652 DRV_LOG(ERR, "must enable DV and ESW when RDMA link ports > 255"); 1653 err = ENOTSUP; 1654 goto error; 1655 } else { 1656 priv->obj_ops = ibv_obj_ops; 1657 } 1658 if (sh->config.tx_pp && 1659 priv->obj_ops.txq_obj_new != mlx5_txq_devx_obj_new) { 1660 /* 1661 * HAVE_MLX5DV_DEVX_UAR_OFFSET is required to support 1662 * packet pacing and already checked above. 1663 * Hence, we should only make sure the SQs will be created 1664 * with DevX, not with Verbs. 1665 * Verbs allocates the SQ UAR on its own and it can't be shared 1666 * with Clock Queue UAR as required for Tx scheduling. 1667 */ 1668 DRV_LOG(ERR, "Verbs SQs, UAR can't be shared as required for packet pacing"); 1669 err = ENODEV; 1670 goto error; 1671 } 1672 priv->drop_queue.hrxq = mlx5_drop_action_create(eth_dev); 1673 if (!priv->drop_queue.hrxq) 1674 goto error; 1675 priv->hrxqs = mlx5_list_create("hrxq", eth_dev, true, 1676 mlx5_hrxq_create_cb, 1677 mlx5_hrxq_match_cb, 1678 mlx5_hrxq_remove_cb, 1679 mlx5_hrxq_clone_cb, 1680 mlx5_hrxq_clone_free_cb); 1681 if (!priv->hrxqs) 1682 goto error; 1683 mlx5_set_metadata_mask(eth_dev); 1684 if (sh->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY && 1685 !priv->sh->dv_regc0_mask) { 1686 DRV_LOG(ERR, "metadata mode %u is not supported " 1687 "(no metadata reg_c[0] is available)", 1688 sh->config.dv_xmeta_en); 1689 err = ENOTSUP; 1690 goto error; 1691 } 1692 rte_rwlock_init(&priv->ind_tbls_lock); 1693 if (sh->config.dv_flow_en) { 1694 err = mlx5_alloc_shared_dr(eth_dev); 1695 if (err) 1696 goto error; 1697 if (mlx5_flex_item_port_init(eth_dev) < 0) 1698 goto error; 1699 } 1700 if (sh->phdev->config.ipv6_tc_fallback == MLX5_IPV6_TC_UNKNOWN) { 1701 sh->phdev->config.ipv6_tc_fallback = MLX5_IPV6_TC_OK; 1702 if (!sh->cdev->config.hca_attr.modify_outer_ipv6_traffic_class || 1703 (sh->config.dv_flow_en == 1 && mlx5_flow_discover_ipv6_tc_support(eth_dev))) 1704 sh->phdev->config.ipv6_tc_fallback = MLX5_IPV6_TC_FALLBACK; 1705 } 1706 rte_spinlock_init(&priv->hw_ctrl_lock); 1707 LIST_INIT(&priv->hw_ctrl_flows); 1708 LIST_INIT(&priv->hw_ext_ctrl_flows); 1709 if (priv->sh->config.dv_flow_en == 2) { 1710 #ifdef HAVE_MLX5_HWS_SUPPORT 1711 if (priv->sh->config.dv_esw_en) { 1712 uint32_t usable_bits; 1713 uint32_t required_bits; 1714 1715 if (priv->sh->dv_regc0_mask == UINT32_MAX) { 1716 DRV_LOG(ERR, "E-Switch port metadata is required when using HWS " 1717 "but it is disabled (configure it through devlink)"); 1718 err = ENOTSUP; 1719 goto error; 1720 } 1721 if (priv->sh->dv_regc0_mask == 0) { 1722 DRV_LOG(ERR, "E-Switch with HWS is not supported " 1723 "(no available bits in reg_c[0])"); 1724 err = ENOTSUP; 1725 goto error; 1726 } 1727 usable_bits = rte_popcount32(priv->sh->dv_regc0_mask); 1728 required_bits = rte_popcount32(priv->vport_meta_mask); 1729 if (usable_bits < required_bits) { 1730 DRV_LOG(ERR, "Not enough bits available in reg_c[0] to provide " 1731 "representor matching."); 1732 err = ENOTSUP; 1733 goto error; 1734 } 1735 } 1736 if (priv->vport_meta_mask) 1737 flow_hw_set_port_info(eth_dev); 1738 if (priv->sh->config.dv_esw_en && 1739 priv->sh->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY && 1740 priv->sh->config.dv_xmeta_en != MLX5_XMETA_MODE_META32_HWS) { 1741 DRV_LOG(ERR, 1742 "metadata mode %u is not supported in HWS eswitch mode", 1743 priv->sh->config.dv_xmeta_en); 1744 err = ENOTSUP; 1745 goto error; 1746 } 1747 if (priv->sh->config.dv_esw_en && 1748 flow_hw_create_vport_action(eth_dev)) { 1749 DRV_LOG(ERR, "port %u failed to create vport action", 1750 eth_dev->data->port_id); 1751 err = EINVAL; 1752 goto error; 1753 } 1754 /* 1755 * If representor matching is disabled, PMD cannot create default flow rules 1756 * to receive traffic for all ports, since implicit source port match is not added. 1757 * Isolated mode is forced. 1758 */ 1759 if (priv->sh->config.dv_esw_en && !priv->sh->config.repr_matching) { 1760 err = mlx5_flow_isolate(eth_dev, 1, NULL); 1761 if (err < 0) { 1762 err = -err; 1763 goto error; 1764 } 1765 DRV_LOG(WARNING, "port %u ingress traffic is restricted to defined " 1766 "flow rules (isolated mode) since representor " 1767 "matching is disabled", 1768 eth_dev->data->port_id); 1769 } 1770 eth_dev->data->dev_flags |= RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE; 1771 return eth_dev; 1772 #else 1773 DRV_LOG(ERR, "DV support is missing for HWS."); 1774 goto error; 1775 #endif 1776 } 1777 if (!priv->sh->flow_priority_check_flag) { 1778 /* Supported Verbs flow priority number detection. */ 1779 err = mlx5_flow_discover_priorities(eth_dev); 1780 priv->sh->flow_max_priority = err; 1781 priv->sh->flow_priority_check_flag = 1; 1782 } else { 1783 err = priv->sh->flow_max_priority; 1784 } 1785 if (err < 0) { 1786 err = -err; 1787 goto error; 1788 } 1789 rte_spinlock_init(&priv->shared_act_sl); 1790 mlx5_flow_counter_mode_config(eth_dev); 1791 mlx5_flow_drop_action_config(eth_dev); 1792 if (sh->config.dv_flow_en) 1793 eth_dev->data->dev_flags |= RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE; 1794 return eth_dev; 1795 error: 1796 if (priv) { 1797 priv->sh->port[priv->dev_port - 1].nl_ih_port_id = 1798 RTE_MAX_ETHPORTS; 1799 rte_io_wmb(); 1800 #ifdef HAVE_MLX5_HWS_SUPPORT 1801 if (eth_dev && 1802 priv->sh && 1803 priv->sh->config.dv_flow_en == 2 && 1804 priv->sh->config.dv_esw_en) 1805 flow_hw_destroy_vport_action(eth_dev); 1806 #endif 1807 if (priv->sh) 1808 mlx5_os_free_shared_dr(priv); 1809 if (priv->nl_socket_route >= 0) 1810 close(priv->nl_socket_route); 1811 if (priv->vmwa_context) 1812 mlx5_vlan_vmwa_exit(priv->vmwa_context); 1813 if (eth_dev && priv->drop_queue.hrxq) 1814 mlx5_drop_action_destroy(eth_dev); 1815 if (priv->mtr_profile_tbl) 1816 mlx5_l3t_destroy(priv->mtr_profile_tbl); 1817 if (own_domain_id) 1818 claim_zero(rte_eth_switch_domain_free(priv->domain_id)); 1819 if (priv->hrxqs) 1820 mlx5_list_destroy(priv->hrxqs); 1821 if (eth_dev && priv->flex_item_map) 1822 mlx5_flex_item_port_cleanup(eth_dev); 1823 mlx5_free(priv->ext_rxqs); 1824 mlx5_free(priv->ext_txqs); 1825 mlx5_free(priv); 1826 if (eth_dev != NULL) 1827 eth_dev->data->dev_private = NULL; 1828 } 1829 if (eth_dev != NULL) { 1830 /* mac_addrs must not be freed alone because part of 1831 * dev_private 1832 **/ 1833 eth_dev->data->mac_addrs = NULL; 1834 rte_eth_dev_release_port(eth_dev); 1835 } 1836 if (sh) 1837 mlx5_free_shared_dev_ctx(sh); 1838 if (nl_rdma >= 0) 1839 close(nl_rdma); 1840 MLX5_ASSERT(err > 0); 1841 rte_errno = err; 1842 return NULL; 1843 } 1844 1845 /** 1846 * Comparison callback to sort device data. 1847 * 1848 * This is meant to be used with qsort(). 1849 * 1850 * @param a[in] 1851 * Pointer to pointer to first data object. 1852 * @param b[in] 1853 * Pointer to pointer to second data object. 1854 * 1855 * @return 1856 * 0 if both objects are equal, less than 0 if the first argument is less 1857 * than the second, greater than 0 otherwise. 1858 */ 1859 static int 1860 mlx5_dev_spawn_data_cmp(const void *a, const void *b) 1861 { 1862 const struct mlx5_switch_info *si_a = 1863 &((const struct mlx5_dev_spawn_data *)a)->info; 1864 const struct mlx5_switch_info *si_b = 1865 &((const struct mlx5_dev_spawn_data *)b)->info; 1866 int uplink_a = si_a->name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK; 1867 int uplink_b = si_b->name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK; 1868 int ret; 1869 1870 /* Uplink ports first. */ 1871 ret = uplink_b - uplink_a; 1872 if (ret) 1873 return ret; 1874 /* Then master devices. */ 1875 ret = si_b->master - si_a->master; 1876 if (ret) 1877 return ret; 1878 /* Then representor devices. */ 1879 ret = si_b->representor - si_a->representor; 1880 if (ret) 1881 return ret; 1882 /* Unidentified devices come last in no specific order. */ 1883 if (!si_a->representor) 1884 return 0; 1885 /* Order representors by name. */ 1886 return si_a->port_name - si_b->port_name; 1887 } 1888 1889 /** 1890 * Match PCI information for possible slaves of bonding device. 1891 * 1892 * @param[in] ibdev_name 1893 * Name of Infiniband device. 1894 * @param[in] pci_dev 1895 * Pointer to primary PCI address structure to match. 1896 * @param[in] nl_rdma 1897 * Netlink RDMA group socket handle. 1898 * @param[in] owner 1899 * Representor owner PF index. 1900 * @param[out] bond_info 1901 * Pointer to bonding information. 1902 * 1903 * @return 1904 * negative value if no bonding device found, otherwise 1905 * positive index of slave PF in bonding. 1906 */ 1907 static int 1908 mlx5_device_bond_pci_match(const char *ibdev_name, 1909 const struct rte_pci_addr *pci_dev, 1910 int nl_rdma, uint16_t owner, 1911 struct mlx5_bond_info *bond_info) 1912 { 1913 char ifname[IF_NAMESIZE + 1]; 1914 unsigned int ifindex; 1915 unsigned int np, i; 1916 FILE *bond_file = NULL, *file; 1917 int pf = -1; 1918 int ret; 1919 uint8_t cur_guid[32] = {0}; 1920 uint8_t guid[32] = {0}; 1921 1922 /* 1923 * Try to get master device name. If something goes wrong suppose 1924 * the lack of kernel support and no bonding devices. 1925 */ 1926 memset(bond_info, 0, sizeof(*bond_info)); 1927 if (nl_rdma < 0) 1928 return -1; 1929 if (!strstr(ibdev_name, "bond")) 1930 return -1; 1931 np = mlx5_nl_portnum(nl_rdma, ibdev_name); 1932 if (!np) 1933 return -1; 1934 if (mlx5_get_device_guid(pci_dev, cur_guid, sizeof(cur_guid)) < 0) 1935 return -1; 1936 /* 1937 * The master device might not be on the predefined port(not on port 1938 * index 1, it is not guaranteed), we have to scan all Infiniband 1939 * device ports and find master. 1940 */ 1941 for (i = 1; i <= np; ++i) { 1942 /* Check whether Infiniband port is populated. */ 1943 ifindex = mlx5_nl_ifindex(nl_rdma, ibdev_name, i); 1944 if (!ifindex) 1945 continue; 1946 if (!if_indextoname(ifindex, ifname)) 1947 continue; 1948 /* Try to read bonding slave names from sysfs. */ 1949 MKSTR(slaves, 1950 "/sys/class/net/%s/master/bonding/slaves", ifname); 1951 bond_file = fopen(slaves, "r"); 1952 if (bond_file) 1953 break; 1954 } 1955 if (!bond_file) 1956 return -1; 1957 /* Use safe format to check maximal buffer length. */ 1958 MLX5_ASSERT(atol(RTE_STR(IF_NAMESIZE)) == IF_NAMESIZE); 1959 while (fscanf(bond_file, "%" RTE_STR(IF_NAMESIZE) "s", ifname) == 1) { 1960 char tmp_str[IF_NAMESIZE + 32]; 1961 struct rte_pci_addr pci_addr; 1962 struct mlx5_switch_info info; 1963 int ret; 1964 1965 /* Process slave interface names in the loop. */ 1966 snprintf(tmp_str, sizeof(tmp_str), 1967 "/sys/class/net/%s", ifname); 1968 if (mlx5_get_pci_addr(tmp_str, &pci_addr)) { 1969 DRV_LOG(WARNING, 1970 "Cannot get PCI address for netdev \"%s\".", 1971 ifname); 1972 continue; 1973 } 1974 /* Slave interface PCI address match found. */ 1975 snprintf(tmp_str, sizeof(tmp_str), 1976 "/sys/class/net/%s/phys_port_name", ifname); 1977 file = fopen(tmp_str, "rb"); 1978 if (!file) 1979 break; 1980 info.name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET; 1981 if (fscanf(file, "%32s", tmp_str) == 1) 1982 mlx5_translate_port_name(tmp_str, &info); 1983 fclose(file); 1984 /* Only process PF ports. */ 1985 if (info.name_type != MLX5_PHYS_PORT_NAME_TYPE_LEGACY && 1986 info.name_type != MLX5_PHYS_PORT_NAME_TYPE_UPLINK) 1987 continue; 1988 /* Check max bonding member. */ 1989 if (info.port_name >= MLX5_BOND_MAX_PORTS) { 1990 DRV_LOG(WARNING, "bonding index out of range, " 1991 "please increase MLX5_BOND_MAX_PORTS: %s", 1992 tmp_str); 1993 break; 1994 } 1995 /* Get ifindex. */ 1996 snprintf(tmp_str, sizeof(tmp_str), 1997 "/sys/class/net/%s/ifindex", ifname); 1998 file = fopen(tmp_str, "rb"); 1999 if (!file) 2000 break; 2001 ret = fscanf(file, "%u", &ifindex); 2002 fclose(file); 2003 if (ret != 1) 2004 break; 2005 /* Save bonding info. */ 2006 strncpy(bond_info->ports[info.port_name].ifname, ifname, 2007 sizeof(bond_info->ports[0].ifname)); 2008 bond_info->ports[info.port_name].pci_addr = pci_addr; 2009 bond_info->ports[info.port_name].ifindex = ifindex; 2010 bond_info->n_port++; 2011 /* 2012 * Under socket direct mode, bonding will use 2013 * system_image_guid as identification. 2014 * After OFED 5.4, guid is readable (ret >= 0) under sysfs. 2015 * All bonding members should have the same guid even if driver 2016 * is using PCIe BDF. 2017 */ 2018 ret = mlx5_get_device_guid(&pci_addr, guid, sizeof(guid)); 2019 if (ret < 0) 2020 break; 2021 else if (ret > 0) { 2022 if (!memcmp(guid, cur_guid, sizeof(guid)) && 2023 owner == info.port_name && 2024 (owner != 0 || (owner == 0 && 2025 !rte_pci_addr_cmp(pci_dev, &pci_addr)))) 2026 pf = info.port_name; 2027 } else if (pci_dev->domain == pci_addr.domain && 2028 pci_dev->bus == pci_addr.bus && 2029 pci_dev->devid == pci_addr.devid && 2030 ((pci_dev->function == 0 && 2031 pci_dev->function + owner == pci_addr.function) || 2032 (pci_dev->function == owner && 2033 pci_addr.function == owner))) 2034 pf = info.port_name; 2035 } 2036 if (pf >= 0) { 2037 /* Get bond interface info */ 2038 ret = mlx5_sysfs_bond_info(ifindex, &bond_info->ifindex, 2039 bond_info->ifname); 2040 if (ret) 2041 DRV_LOG(ERR, "unable to get bond info: %s", 2042 strerror(rte_errno)); 2043 else 2044 DRV_LOG(INFO, "PF device %u, bond device %u(%s)", 2045 ifindex, bond_info->ifindex, bond_info->ifname); 2046 } 2047 if (owner == 0 && pf != 0) { 2048 DRV_LOG(INFO, "PCIe instance " PCI_PRI_FMT " isn't bonding owner", 2049 pci_dev->domain, pci_dev->bus, pci_dev->devid, 2050 pci_dev->function); 2051 } 2052 return pf; 2053 } 2054 2055 static int 2056 mlx5_nl_esw_multiport_get(struct rte_pci_addr *pci_addr, int *enabled) 2057 { 2058 char pci_addr_str[PCI_PRI_STR_SIZE] = { 0 }; 2059 int nlsk_fd; 2060 int devlink_id; 2061 int ret; 2062 2063 /* Provide correct value to have defined enabled state in case of an error. */ 2064 *enabled = 0; 2065 rte_pci_device_name(pci_addr, pci_addr_str, sizeof(pci_addr_str)); 2066 nlsk_fd = mlx5_nl_init(NETLINK_GENERIC, 0); 2067 if (nlsk_fd < 0) 2068 return nlsk_fd; 2069 devlink_id = mlx5_nl_devlink_family_id_get(nlsk_fd); 2070 if (devlink_id < 0) { 2071 ret = devlink_id; 2072 DRV_LOG(DEBUG, "Unable to get devlink family id for Multiport E-Switch checks " 2073 "by netlink, for PCI device %s", pci_addr_str); 2074 goto close_nlsk_fd; 2075 } 2076 ret = mlx5_nl_devlink_esw_multiport_get(nlsk_fd, devlink_id, pci_addr_str, enabled); 2077 if (ret < 0) 2078 DRV_LOG(DEBUG, "Unable to get Multiport E-Switch state by Netlink."); 2079 close_nlsk_fd: 2080 close(nlsk_fd); 2081 return ret; 2082 } 2083 2084 #define SYSFS_MPESW_PARAM_MAX_LEN 16 2085 2086 static int 2087 mlx5_sysfs_esw_multiport_get(struct ibv_device *ibv, struct rte_pci_addr *pci_addr, int *enabled) 2088 { 2089 int nl_rdma; 2090 unsigned int n_ports; 2091 unsigned int i; 2092 int ret; 2093 2094 /* Provide correct value to have defined enabled state in case of an error. */ 2095 *enabled = 0; 2096 nl_rdma = mlx5_nl_init(NETLINK_RDMA, 0); 2097 if (nl_rdma < 0) 2098 return nl_rdma; 2099 n_ports = mlx5_nl_portnum(nl_rdma, ibv->name); 2100 if (!n_ports) { 2101 ret = -rte_errno; 2102 goto close_nl_rdma; 2103 } 2104 for (i = 1; i <= n_ports; ++i) { 2105 unsigned int ifindex; 2106 char ifname[IF_NAMESIZE + 1]; 2107 struct rte_pci_addr if_pci_addr; 2108 char mpesw[SYSFS_MPESW_PARAM_MAX_LEN + 1]; 2109 FILE *sysfs; 2110 int n; 2111 2112 ifindex = mlx5_nl_ifindex(nl_rdma, ibv->name, i); 2113 if (!ifindex) 2114 continue; 2115 if (!if_indextoname(ifindex, ifname)) 2116 continue; 2117 MKSTR(sysfs_if_path, "/sys/class/net/%s", ifname); 2118 if (mlx5_get_pci_addr(sysfs_if_path, &if_pci_addr)) 2119 continue; 2120 if (pci_addr->domain != if_pci_addr.domain || 2121 pci_addr->bus != if_pci_addr.bus || 2122 pci_addr->devid != if_pci_addr.devid || 2123 pci_addr->function != if_pci_addr.function) 2124 continue; 2125 MKSTR(sysfs_mpesw_path, 2126 "/sys/class/net/%s/compat/devlink/lag_port_select_mode", ifname); 2127 sysfs = fopen(sysfs_mpesw_path, "r"); 2128 if (!sysfs) 2129 continue; 2130 n = fscanf(sysfs, "%" RTE_STR(SYSFS_MPESW_PARAM_MAX_LEN) "s", mpesw); 2131 fclose(sysfs); 2132 if (n != 1) 2133 continue; 2134 ret = 0; 2135 if (strcmp(mpesw, "multiport_esw") == 0) { 2136 *enabled = 1; 2137 break; 2138 } 2139 *enabled = 0; 2140 break; 2141 } 2142 if (i > n_ports) { 2143 DRV_LOG(DEBUG, "Unable to get Multiport E-Switch state by sysfs."); 2144 rte_errno = ENOENT; 2145 ret = -rte_errno; 2146 } 2147 2148 close_nl_rdma: 2149 close(nl_rdma); 2150 return ret; 2151 } 2152 2153 static int 2154 mlx5_is_mpesw_enabled(struct ibv_device *ibv, struct rte_pci_addr *ibv_pci_addr, int *enabled) 2155 { 2156 /* 2157 * Try getting Multiport E-Switch state through netlink interface 2158 * If unable, try sysfs interface. If that is unable as well, 2159 * assume that Multiport E-Switch is disabled and return an error. 2160 */ 2161 if (mlx5_nl_esw_multiport_get(ibv_pci_addr, enabled) >= 0 || 2162 mlx5_sysfs_esw_multiport_get(ibv, ibv_pci_addr, enabled) >= 0) 2163 return 0; 2164 DRV_LOG(DEBUG, "Unable to check MPESW state for IB device %s " 2165 "(PCI: " PCI_PRI_FMT ")", 2166 ibv->name, 2167 ibv_pci_addr->domain, ibv_pci_addr->bus, 2168 ibv_pci_addr->devid, ibv_pci_addr->function); 2169 *enabled = 0; 2170 return -rte_errno; 2171 } 2172 2173 static int 2174 mlx5_device_mpesw_pci_match(struct ibv_device *ibv, 2175 const struct rte_pci_addr *owner_pci, 2176 int nl_rdma) 2177 { 2178 struct rte_pci_addr ibdev_pci_addr = { 0 }; 2179 char ifname[IF_NAMESIZE + 1] = { 0 }; 2180 unsigned int ifindex; 2181 unsigned int np; 2182 unsigned int i; 2183 int enabled = 0; 2184 int ret; 2185 2186 /* Check if IB device's PCI address matches the probed PCI address. */ 2187 if (mlx5_get_pci_addr(ibv->ibdev_path, &ibdev_pci_addr)) { 2188 DRV_LOG(DEBUG, "Skipping MPESW check for IB device %s since " 2189 "there is no underlying PCI device", ibv->name); 2190 rte_errno = ENOENT; 2191 return -rte_errno; 2192 } 2193 if (ibdev_pci_addr.domain != owner_pci->domain || 2194 ibdev_pci_addr.bus != owner_pci->bus || 2195 ibdev_pci_addr.devid != owner_pci->devid || 2196 ibdev_pci_addr.function != owner_pci->function) { 2197 return -1; 2198 } 2199 /* Check if IB device has MPESW enabled. */ 2200 if (mlx5_is_mpesw_enabled(ibv, &ibdev_pci_addr, &enabled)) 2201 return -1; 2202 if (!enabled) 2203 return -1; 2204 /* Iterate through IB ports to find MPESW master uplink port. */ 2205 if (nl_rdma < 0) 2206 return -1; 2207 np = mlx5_nl_portnum(nl_rdma, ibv->name); 2208 if (!np) 2209 return -1; 2210 for (i = 1; i <= np; ++i) { 2211 struct rte_pci_addr pci_addr; 2212 FILE *file; 2213 char port_name[IF_NAMESIZE + 1]; 2214 struct mlx5_switch_info info; 2215 2216 /* Check whether IB port has a corresponding netdev. */ 2217 ifindex = mlx5_nl_ifindex(nl_rdma, ibv->name, i); 2218 if (!ifindex) 2219 continue; 2220 if (!if_indextoname(ifindex, ifname)) 2221 continue; 2222 /* Read port name and determine its type. */ 2223 MKSTR(ifphysportname, "/sys/class/net/%s/phys_port_name", ifname); 2224 file = fopen(ifphysportname, "rb"); 2225 if (!file) 2226 continue; 2227 ret = fscanf(file, "%16s", port_name); 2228 fclose(file); 2229 if (ret != 1) 2230 continue; 2231 memset(&info, 0, sizeof(info)); 2232 mlx5_translate_port_name(port_name, &info); 2233 if (info.name_type != MLX5_PHYS_PORT_NAME_TYPE_UPLINK) 2234 continue; 2235 /* Fetch PCI address of the device to which the netdev is bound. */ 2236 MKSTR(ifpath, "/sys/class/net/%s", ifname); 2237 if (mlx5_get_pci_addr(ifpath, &pci_addr)) 2238 continue; 2239 if (pci_addr.domain == ibdev_pci_addr.domain && 2240 pci_addr.bus == ibdev_pci_addr.bus && 2241 pci_addr.devid == ibdev_pci_addr.devid && 2242 pci_addr.function == ibdev_pci_addr.function) { 2243 MLX5_ASSERT(info.port_name >= 0); 2244 return info.port_name; 2245 } 2246 } 2247 /* No matching MPESW uplink port was found. */ 2248 return -1; 2249 } 2250 2251 /** 2252 * Register a PCI device within bonding. 2253 * 2254 * This function spawns Ethernet devices out of a given PCI device and 2255 * bonding owner PF index. 2256 * 2257 * @param[in] cdev 2258 * Pointer to common mlx5 device structure. 2259 * @param[in] req_eth_da 2260 * Requested ethdev device argument. 2261 * @param[in] owner_id 2262 * Requested owner PF port ID within bonding device, default to 0. 2263 * @param[in, out] mkvlist 2264 * Pointer to mlx5 kvargs control, can be NULL if there is no devargs. 2265 * 2266 * @return 2267 * 0 on success, a negative errno value otherwise and rte_errno is set. 2268 */ 2269 static int 2270 mlx5_os_pci_probe_pf(struct mlx5_common_device *cdev, 2271 struct rte_eth_devargs *req_eth_da, 2272 uint16_t owner_id, struct mlx5_kvargs_ctrl *mkvlist) 2273 { 2274 struct ibv_device **ibv_list; 2275 /* 2276 * Number of found IB Devices matching with requested PCI BDF. 2277 * nd != 1 means there are multiple IB devices over the same 2278 * PCI device and we have representors and master. 2279 */ 2280 unsigned int nd = 0; 2281 /* 2282 * Number of found IB device Ports. nd = 1 and np = 1..n means 2283 * we have the single multiport IB device, and there may be 2284 * representors attached to some of found ports. 2285 */ 2286 unsigned int np = 0; 2287 /* 2288 * Number of DPDK ethernet devices to Spawn - either over 2289 * multiple IB devices or multiple ports of single IB device. 2290 * Actually this is the number of iterations to spawn. 2291 */ 2292 unsigned int ns = 0; 2293 /* 2294 * Bonding device 2295 * < 0 - no bonding device (single one) 2296 * >= 0 - bonding device (value is slave PF index) 2297 */ 2298 int bd = -1; 2299 /* 2300 * Multiport E-Switch (MPESW) device: 2301 * < 0 - no MPESW device or could not determine if it is MPESW device, 2302 * >= 0 - MPESW device. Value is the port index of the MPESW owner. 2303 */ 2304 int mpesw = MLX5_MPESW_PORT_INVALID; 2305 struct rte_pci_device *pci_dev = RTE_DEV_TO_PCI(cdev->dev); 2306 struct mlx5_dev_spawn_data *list = NULL; 2307 struct rte_eth_devargs eth_da = *req_eth_da; 2308 struct rte_pci_addr owner_pci = pci_dev->addr; /* Owner PF. */ 2309 struct mlx5_bond_info bond_info; 2310 int ret = -1; 2311 2312 errno = 0; 2313 ibv_list = mlx5_glue->get_device_list(&ret); 2314 if (!ibv_list) { 2315 rte_errno = errno ? errno : ENOSYS; 2316 DRV_LOG(ERR, "Cannot list devices, is ib_uverbs loaded?"); 2317 return -rte_errno; 2318 } 2319 /* 2320 * First scan the list of all Infiniband devices to find 2321 * matching ones, gathering into the list. 2322 */ 2323 struct ibv_device *ibv_match[ret + 1]; 2324 int nl_route = mlx5_nl_init(NETLINK_ROUTE, 0); 2325 int nl_rdma = mlx5_nl_init(NETLINK_RDMA, 0); 2326 unsigned int i; 2327 2328 while (ret-- > 0) { 2329 struct rte_pci_addr pci_addr; 2330 2331 DRV_LOG(DEBUG, "Checking device \"%s\"", ibv_list[ret]->name); 2332 bd = mlx5_device_bond_pci_match(ibv_list[ret]->name, &owner_pci, 2333 nl_rdma, owner_id, &bond_info); 2334 if (bd >= 0) { 2335 /* 2336 * Bonding device detected. Only one match is allowed, 2337 * the bonding is supported over multi-port IB device, 2338 * there should be no matches on representor PCI 2339 * functions or non VF LAG bonding devices with 2340 * specified address. 2341 */ 2342 if (nd) { 2343 DRV_LOG(ERR, 2344 "multiple PCI match on bonding device" 2345 "\"%s\" found", ibv_list[ret]->name); 2346 rte_errno = ENOENT; 2347 ret = -rte_errno; 2348 goto exit; 2349 } 2350 /* Amend owner pci address if owner PF ID specified. */ 2351 if (eth_da.nb_representor_ports) 2352 owner_pci.function += owner_id; 2353 DRV_LOG(INFO, 2354 "PCI information matches for slave %d bonding device \"%s\"", 2355 bd, ibv_list[ret]->name); 2356 ibv_match[nd++] = ibv_list[ret]; 2357 break; 2358 } 2359 mpesw = mlx5_device_mpesw_pci_match(ibv_list[ret], &owner_pci, nl_rdma); 2360 if (mpesw >= 0) { 2361 /* 2362 * MPESW device detected. Only one matching IB device is allowed, 2363 * so if any matches were found previously, fail gracefully. 2364 */ 2365 if (nd) { 2366 DRV_LOG(ERR, 2367 "PCI information matches MPESW device \"%s\", " 2368 "but multiple matching PCI devices were found. " 2369 "Probing failed.", 2370 ibv_list[ret]->name); 2371 rte_errno = ENOENT; 2372 ret = -rte_errno; 2373 goto exit; 2374 } 2375 DRV_LOG(INFO, 2376 "PCI information matches MPESW device \"%s\"", 2377 ibv_list[ret]->name); 2378 ibv_match[nd++] = ibv_list[ret]; 2379 break; 2380 } 2381 /* Bonding or MPESW device was not found. */ 2382 if (mlx5_get_pci_addr(ibv_list[ret]->ibdev_path, 2383 &pci_addr)) 2384 continue; 2385 if (rte_pci_addr_cmp(&owner_pci, &pci_addr) != 0) 2386 continue; 2387 DRV_LOG(INFO, "PCI information matches for device \"%s\"", 2388 ibv_list[ret]->name); 2389 ibv_match[nd++] = ibv_list[ret]; 2390 } 2391 ibv_match[nd] = NULL; 2392 if (!nd) { 2393 /* No device matches, just complain and bail out. */ 2394 DRV_LOG(WARNING, 2395 "PF %u doesn't have Verbs device matches PCI device " PCI_PRI_FMT "," 2396 " are kernel drivers loaded?", 2397 owner_id, owner_pci.domain, owner_pci.bus, 2398 owner_pci.devid, owner_pci.function); 2399 rte_errno = ENOENT; 2400 ret = -rte_errno; 2401 goto exit; 2402 } 2403 if (nd == 1) { 2404 /* 2405 * Found single matching device may have multiple ports. 2406 * Each port may be representor, we have to check the port 2407 * number and check the representors existence. 2408 */ 2409 if (nl_rdma >= 0) 2410 np = mlx5_nl_portnum(nl_rdma, ibv_match[0]->name); 2411 if (!np) 2412 DRV_LOG(WARNING, 2413 "Cannot get IB device \"%s\" ports number.", 2414 ibv_match[0]->name); 2415 if (bd >= 0 && !np) { 2416 DRV_LOG(ERR, "Cannot get ports for bonding device."); 2417 rte_errno = ENOENT; 2418 ret = -rte_errno; 2419 goto exit; 2420 } 2421 if (mpesw >= 0 && !np) { 2422 DRV_LOG(ERR, "Cannot get ports for MPESW device."); 2423 rte_errno = ENOENT; 2424 ret = -rte_errno; 2425 goto exit; 2426 } 2427 } 2428 /* Now we can determine the maximal amount of devices to be spawned. */ 2429 list = mlx5_malloc(MLX5_MEM_ZERO, 2430 sizeof(struct mlx5_dev_spawn_data) * (np ? np : nd), 2431 RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY); 2432 if (!list) { 2433 DRV_LOG(ERR, "Spawn data array allocation failure."); 2434 rte_errno = ENOMEM; 2435 ret = -rte_errno; 2436 goto exit; 2437 } 2438 if (bd >= 0 || mpesw >= 0 || np > 1) { 2439 /* 2440 * Single IB device with multiple ports found, 2441 * it may be E-Switch master device and representors. 2442 * We have to perform identification through the ports. 2443 */ 2444 MLX5_ASSERT(nl_rdma >= 0); 2445 MLX5_ASSERT(ns == 0); 2446 MLX5_ASSERT(nd == 1); 2447 MLX5_ASSERT(np); 2448 for (i = 1; i <= np; ++i) { 2449 list[ns].bond_info = &bond_info; 2450 list[ns].max_port = np; 2451 list[ns].phys_port = i; 2452 list[ns].phys_dev_name = ibv_match[0]->name; 2453 list[ns].eth_dev = NULL; 2454 list[ns].pci_dev = pci_dev; 2455 list[ns].cdev = cdev; 2456 list[ns].pf_bond = bd; 2457 list[ns].mpesw_port = MLX5_MPESW_PORT_INVALID; 2458 list[ns].ifindex = mlx5_nl_ifindex(nl_rdma, 2459 ibv_match[0]->name, 2460 i); 2461 if (!list[ns].ifindex) { 2462 /* 2463 * No network interface index found for the 2464 * specified port, it means there is no 2465 * representor on this port. It's OK, 2466 * there can be disabled ports, for example 2467 * if sriov_numvfs < sriov_totalvfs. 2468 */ 2469 continue; 2470 } 2471 ret = -1; 2472 if (nl_route >= 0) 2473 ret = mlx5_nl_switch_info(nl_route, 2474 list[ns].ifindex, 2475 &list[ns].info); 2476 if (ret || (!list[ns].info.representor && 2477 !list[ns].info.master)) { 2478 /* 2479 * We failed to recognize representors with 2480 * Netlink, let's try to perform the task 2481 * with sysfs. 2482 */ 2483 ret = mlx5_sysfs_switch_info(list[ns].ifindex, 2484 &list[ns].info); 2485 } 2486 if (!ret && bd >= 0) { 2487 switch (list[ns].info.name_type) { 2488 case MLX5_PHYS_PORT_NAME_TYPE_UPLINK: 2489 if (np == 1) { 2490 /* 2491 * Force standalone bonding 2492 * device for ROCE LAG 2493 * configurations. 2494 */ 2495 list[ns].info.master = 0; 2496 list[ns].info.representor = 0; 2497 } 2498 ns++; 2499 break; 2500 case MLX5_PHYS_PORT_NAME_TYPE_PFHPF: 2501 /* Fallthrough */ 2502 case MLX5_PHYS_PORT_NAME_TYPE_PFVF: 2503 /* Fallthrough */ 2504 case MLX5_PHYS_PORT_NAME_TYPE_PFSF: 2505 if (list[ns].info.pf_num == bd) 2506 ns++; 2507 break; 2508 default: 2509 break; 2510 } 2511 continue; 2512 } 2513 if (!ret && mpesw >= 0) { 2514 switch (list[ns].info.name_type) { 2515 case MLX5_PHYS_PORT_NAME_TYPE_UPLINK: 2516 /* Owner port is treated as master port. */ 2517 if (list[ns].info.port_name == mpesw) { 2518 list[ns].info.master = 1; 2519 list[ns].info.representor = 0; 2520 } else { 2521 list[ns].info.master = 0; 2522 list[ns].info.representor = 1; 2523 } 2524 /* 2525 * Ports of this type have uplink port index 2526 * encoded in the name. This index is also a PF index. 2527 */ 2528 list[ns].info.pf_num = list[ns].info.port_name; 2529 list[ns].mpesw_port = list[ns].info.port_name; 2530 list[ns].info.mpesw_owner = mpesw; 2531 ns++; 2532 break; 2533 case MLX5_PHYS_PORT_NAME_TYPE_PFHPF: 2534 case MLX5_PHYS_PORT_NAME_TYPE_PFVF: 2535 case MLX5_PHYS_PORT_NAME_TYPE_PFSF: 2536 /* Only spawn representors related to the probed PF. */ 2537 if (list[ns].info.pf_num == owner_id) { 2538 /* 2539 * Ports of this type have PF index encoded in name, 2540 * which translate to the related uplink port index. 2541 */ 2542 list[ns].mpesw_port = list[ns].info.pf_num; 2543 /* MPESW owner is also saved but not used now. */ 2544 list[ns].info.mpesw_owner = mpesw; 2545 ns++; 2546 } 2547 break; 2548 default: 2549 break; 2550 } 2551 continue; 2552 } 2553 if (!ret && (list[ns].info.representor ^ 2554 list[ns].info.master)) 2555 ns++; 2556 } 2557 } else { 2558 /* 2559 * The existence of several matching entries (nd > 1) means 2560 * port representors have been instantiated. No existing Verbs 2561 * call nor sysfs entries can tell them apart, this can only 2562 * be done through Netlink calls assuming kernel drivers are 2563 * recent enough to support them. 2564 * 2565 * In the event of identification failure through Netlink, 2566 * try again through sysfs, then: 2567 * 2568 * 1. A single IB device matches (nd == 1) with single 2569 * port (np=0/1) and is not a representor, assume 2570 * no switch support. 2571 * 2572 * 2. Otherwise no safe assumptions can be made; 2573 * complain louder and bail out. 2574 */ 2575 for (i = 0; i != nd; ++i) { 2576 memset(&list[ns].info, 0, sizeof(list[ns].info)); 2577 list[ns].bond_info = NULL; 2578 list[ns].max_port = 1; 2579 list[ns].phys_port = 1; 2580 list[ns].phys_dev_name = ibv_match[i]->name; 2581 list[ns].eth_dev = NULL; 2582 list[ns].pci_dev = pci_dev; 2583 list[ns].cdev = cdev; 2584 list[ns].pf_bond = -1; 2585 list[ns].mpesw_port = MLX5_MPESW_PORT_INVALID; 2586 list[ns].ifindex = 0; 2587 if (nl_rdma >= 0) 2588 list[ns].ifindex = mlx5_nl_ifindex 2589 (nl_rdma, 2590 ibv_match[i]->name, 2591 1); 2592 if (!list[ns].ifindex) { 2593 char ifname[IF_NAMESIZE]; 2594 2595 /* 2596 * Netlink failed, it may happen with old 2597 * ib_core kernel driver (before 4.16). 2598 * We can assume there is old driver because 2599 * here we are processing single ports IB 2600 * devices. Let's try sysfs to retrieve 2601 * the ifindex. The method works for 2602 * master device only. 2603 */ 2604 if (nd > 1) { 2605 /* 2606 * Multiple devices found, assume 2607 * representors, can not distinguish 2608 * master/representor and retrieve 2609 * ifindex via sysfs. 2610 */ 2611 continue; 2612 } 2613 ret = mlx5_get_ifname_sysfs 2614 (ibv_match[i]->ibdev_path, ifname); 2615 if (!ret) 2616 list[ns].ifindex = 2617 if_nametoindex(ifname); 2618 if (!list[ns].ifindex) { 2619 /* 2620 * No network interface index found 2621 * for the specified device, it means 2622 * there it is neither representor 2623 * nor master. 2624 */ 2625 continue; 2626 } 2627 } 2628 ret = -1; 2629 if (nl_route >= 0) 2630 ret = mlx5_nl_switch_info(nl_route, 2631 list[ns].ifindex, 2632 &list[ns].info); 2633 if (ret || (!list[ns].info.representor && 2634 !list[ns].info.master)) { 2635 /* 2636 * We failed to recognize representors with 2637 * Netlink, let's try to perform the task 2638 * with sysfs. 2639 */ 2640 ret = mlx5_sysfs_switch_info(list[ns].ifindex, 2641 &list[ns].info); 2642 } 2643 if (!ret && (list[ns].info.representor ^ 2644 list[ns].info.master)) { 2645 ns++; 2646 } else if ((nd == 1) && 2647 !list[ns].info.representor && 2648 !list[ns].info.master) { 2649 /* 2650 * Single IB device with one physical port and 2651 * attached network device. 2652 * May be SRIOV is not enabled or there is no 2653 * representors. 2654 */ 2655 DRV_LOG(INFO, "No E-Switch support detected."); 2656 ns++; 2657 break; 2658 } 2659 } 2660 if (!ns) { 2661 DRV_LOG(ERR, 2662 "Unable to recognize master/representors on the multiple IB devices."); 2663 rte_errno = ENOENT; 2664 ret = -rte_errno; 2665 goto exit; 2666 } 2667 /* 2668 * New kernels may add the switch_id attribute for the case 2669 * there is no E-Switch and we wrongly recognized the only 2670 * device as master. Override this if there is the single 2671 * device with single port and new device name format present. 2672 */ 2673 if (nd == 1 && 2674 list[0].info.name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK) { 2675 list[0].info.master = 0; 2676 list[0].info.representor = 0; 2677 } 2678 } 2679 MLX5_ASSERT(ns); 2680 /* 2681 * Sort list to probe devices in natural order for users convenience 2682 * (i.e. master first, then representors from lowest to highest ID). 2683 */ 2684 qsort(list, ns, sizeof(*list), mlx5_dev_spawn_data_cmp); 2685 if (eth_da.type != RTE_ETH_REPRESENTOR_NONE) { 2686 /* Set devargs default values. */ 2687 if (eth_da.nb_mh_controllers == 0) { 2688 eth_da.nb_mh_controllers = 1; 2689 eth_da.mh_controllers[0] = 0; 2690 } 2691 if (eth_da.nb_ports == 0 && ns > 0) { 2692 if (list[0].pf_bond >= 0 && list[0].info.representor) 2693 DRV_LOG(WARNING, "Representor on Bonding device should use pf#vf# syntax: %s", 2694 pci_dev->device.devargs->args); 2695 eth_da.nb_ports = 1; 2696 eth_da.ports[0] = list[0].info.pf_num; 2697 } 2698 if (eth_da.nb_representor_ports == 0) { 2699 eth_da.nb_representor_ports = 1; 2700 eth_da.representor_ports[0] = 0; 2701 } 2702 } 2703 for (i = 0; i != ns; ++i) { 2704 uint32_t restore; 2705 2706 list[i].eth_dev = mlx5_dev_spawn(cdev->dev, &list[i], ð_da, 2707 mkvlist); 2708 if (!list[i].eth_dev) { 2709 if (rte_errno != EBUSY && rte_errno != EEXIST) 2710 break; 2711 /* Device is disabled or already spawned. Ignore it. */ 2712 continue; 2713 } 2714 restore = list[i].eth_dev->data->dev_flags; 2715 rte_eth_copy_pci_info(list[i].eth_dev, pci_dev); 2716 /** 2717 * Each representor has a dedicated interrupts vector. 2718 * rte_eth_copy_pci_info() assigns PF interrupts handle to 2719 * representor eth_dev object because representor and PF 2720 * share the same PCI address. 2721 * Override representor device with a dedicated 2722 * interrupts handle here. 2723 * Representor interrupts handle is released in mlx5_dev_stop(). 2724 */ 2725 if (list[i].info.representor) { 2726 struct rte_intr_handle *intr_handle = 2727 rte_intr_instance_alloc(RTE_INTR_INSTANCE_F_SHARED); 2728 if (intr_handle == NULL) { 2729 DRV_LOG(ERR, 2730 "port %u failed to allocate memory for interrupt handler " 2731 "Rx interrupts will not be supported", 2732 i); 2733 rte_errno = ENOMEM; 2734 ret = -rte_errno; 2735 goto exit; 2736 } 2737 list[i].eth_dev->intr_handle = intr_handle; 2738 } 2739 /* Restore non-PCI flags cleared by the above call. */ 2740 list[i].eth_dev->data->dev_flags |= restore; 2741 rte_eth_dev_probing_finish(list[i].eth_dev); 2742 } 2743 if (i != ns) { 2744 DRV_LOG(ERR, 2745 "probe of PCI device " PCI_PRI_FMT " aborted after" 2746 " encountering an error: %s", 2747 owner_pci.domain, owner_pci.bus, 2748 owner_pci.devid, owner_pci.function, 2749 strerror(rte_errno)); 2750 ret = -rte_errno; 2751 /* Roll back. */ 2752 while (i--) { 2753 if (!list[i].eth_dev) 2754 continue; 2755 mlx5_dev_close(list[i].eth_dev); 2756 /* mac_addrs must not be freed because in dev_private */ 2757 list[i].eth_dev->data->mac_addrs = NULL; 2758 claim_zero(rte_eth_dev_release_port(list[i].eth_dev)); 2759 } 2760 /* Restore original error. */ 2761 rte_errno = -ret; 2762 } else { 2763 ret = 0; 2764 } 2765 exit: 2766 /* 2767 * Do the routine cleanup: 2768 * - close opened Netlink sockets 2769 * - free allocated spawn data array 2770 * - free the Infiniband device list 2771 */ 2772 if (nl_rdma >= 0) 2773 close(nl_rdma); 2774 if (nl_route >= 0) 2775 close(nl_route); 2776 if (list) 2777 mlx5_free(list); 2778 MLX5_ASSERT(ibv_list); 2779 mlx5_glue->free_device_list(ibv_list); 2780 return ret; 2781 } 2782 2783 static int 2784 mlx5_os_parse_eth_devargs(struct rte_device *dev, 2785 struct rte_eth_devargs *eth_da) 2786 { 2787 int ret = 0; 2788 2789 if (dev->devargs == NULL) 2790 return 0; 2791 memset(eth_da, 0, sizeof(*eth_da)); 2792 /* Parse representor information first from class argument. */ 2793 if (dev->devargs->cls_str) 2794 ret = rte_eth_devargs_parse(dev->devargs->cls_str, eth_da, 1); 2795 if (ret < 0) { 2796 DRV_LOG(ERR, "failed to parse device arguments: %s", 2797 dev->devargs->cls_str); 2798 return -rte_errno; 2799 } 2800 if (eth_da->type == RTE_ETH_REPRESENTOR_NONE && dev->devargs->args) { 2801 /* Parse legacy device argument */ 2802 ret = rte_eth_devargs_parse(dev->devargs->args, eth_da, 1); 2803 if (ret < 0) { 2804 DRV_LOG(ERR, "failed to parse device arguments: %s", 2805 dev->devargs->args); 2806 return -rte_errno; 2807 } 2808 } 2809 return 0; 2810 } 2811 2812 /** 2813 * Callback to register a PCI device. 2814 * 2815 * This function spawns Ethernet devices out of a given PCI device. 2816 * 2817 * @param[in] cdev 2818 * Pointer to common mlx5 device structure. 2819 * @param[in, out] mkvlist 2820 * Pointer to mlx5 kvargs control, can be NULL if there is no devargs. 2821 * 2822 * @return 2823 * 0 on success, a negative errno value otherwise and rte_errno is set. 2824 */ 2825 static int 2826 mlx5_os_pci_probe(struct mlx5_common_device *cdev, 2827 struct mlx5_kvargs_ctrl *mkvlist) 2828 { 2829 struct rte_pci_device *pci_dev = RTE_DEV_TO_PCI(cdev->dev); 2830 struct rte_eth_devargs eth_da = { .nb_ports = 0 }; 2831 int ret = 0; 2832 uint16_t p; 2833 2834 ret = mlx5_os_parse_eth_devargs(cdev->dev, ð_da); 2835 if (ret != 0) 2836 return ret; 2837 2838 if (eth_da.nb_ports > 0) { 2839 /* Iterate all port if devargs pf is range: "pf[0-1]vf[...]". */ 2840 for (p = 0; p < eth_da.nb_ports; p++) { 2841 ret = mlx5_os_pci_probe_pf(cdev, ð_da, 2842 eth_da.ports[p], mkvlist); 2843 if (ret) { 2844 DRV_LOG(INFO, "Probe of PCI device " PCI_PRI_FMT " " 2845 "aborted due to proding failure of PF %u", 2846 pci_dev->addr.domain, pci_dev->addr.bus, 2847 pci_dev->addr.devid, pci_dev->addr.function, 2848 eth_da.ports[p]); 2849 mlx5_net_remove(cdev); 2850 if (p != 0) 2851 break; 2852 } 2853 } 2854 } else { 2855 ret = mlx5_os_pci_probe_pf(cdev, ð_da, 0, mkvlist); 2856 } 2857 return ret; 2858 } 2859 2860 /* Probe a single SF device on auxiliary bus, no representor support. */ 2861 static int 2862 mlx5_os_auxiliary_probe(struct mlx5_common_device *cdev, 2863 struct mlx5_kvargs_ctrl *mkvlist) 2864 { 2865 struct rte_eth_devargs eth_da = { .nb_ports = 0 }; 2866 struct mlx5_dev_spawn_data spawn = { 2867 .pf_bond = -1, 2868 .mpesw_port = MLX5_MPESW_PORT_INVALID, 2869 }; 2870 struct rte_device *dev = cdev->dev; 2871 struct rte_auxiliary_device *adev = RTE_DEV_TO_AUXILIARY(dev); 2872 struct rte_eth_dev *eth_dev; 2873 int ret = 0; 2874 2875 /* Parse ethdev devargs. */ 2876 ret = mlx5_os_parse_eth_devargs(dev, ð_da); 2877 if (ret != 0) 2878 return ret; 2879 /* Init spawn data. */ 2880 spawn.max_port = 1; 2881 spawn.phys_port = 1; 2882 spawn.phys_dev_name = mlx5_os_get_ctx_device_name(cdev->ctx); 2883 ret = mlx5_auxiliary_get_ifindex(dev->name); 2884 if (ret < 0) { 2885 DRV_LOG(ERR, "failed to get ethdev ifindex: %s", dev->name); 2886 return ret; 2887 } 2888 spawn.ifindex = ret; 2889 spawn.cdev = cdev; 2890 /* Spawn device. */ 2891 eth_dev = mlx5_dev_spawn(dev, &spawn, ð_da, mkvlist); 2892 if (eth_dev == NULL) 2893 return -rte_errno; 2894 /* Post create. */ 2895 eth_dev->intr_handle = adev->intr_handle; 2896 if (rte_eal_process_type() == RTE_PROC_PRIMARY) { 2897 eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC; 2898 eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_RMV; 2899 eth_dev->data->numa_node = dev->numa_node; 2900 } 2901 rte_eth_dev_probing_finish(eth_dev); 2902 return 0; 2903 } 2904 2905 /** 2906 * Net class driver callback to probe a device. 2907 * 2908 * This function probe PCI bus device(s) or a single SF on auxiliary bus. 2909 * 2910 * @param[in] cdev 2911 * Pointer to the common mlx5 device. 2912 * @param[in, out] mkvlist 2913 * Pointer to mlx5 kvargs control, can be NULL if there is no devargs. 2914 * 2915 * @return 2916 * 0 on success, a negative errno value otherwise and rte_errno is set. 2917 */ 2918 int 2919 mlx5_os_net_probe(struct mlx5_common_device *cdev, 2920 struct mlx5_kvargs_ctrl *mkvlist) 2921 { 2922 int ret; 2923 2924 if (rte_eal_process_type() == RTE_PROC_PRIMARY) 2925 mlx5_pmd_socket_init(); 2926 ret = mlx5_init_once(); 2927 if (ret) { 2928 DRV_LOG(ERR, "Unable to init PMD global data: %s", 2929 strerror(rte_errno)); 2930 return -rte_errno; 2931 } 2932 ret = mlx5_probe_again_args_validate(cdev, mkvlist); 2933 if (ret) { 2934 DRV_LOG(ERR, "Probe again parameters are not compatible : %s", 2935 strerror(rte_errno)); 2936 return -rte_errno; 2937 } 2938 if (mlx5_dev_is_pci(cdev->dev)) 2939 return mlx5_os_pci_probe(cdev, mkvlist); 2940 else 2941 return mlx5_os_auxiliary_probe(cdev, mkvlist); 2942 } 2943 2944 /** 2945 * Cleanup resources when the last device is closed. 2946 */ 2947 void 2948 mlx5_os_net_cleanup(void) 2949 { 2950 mlx5_pmd_socket_uninit(); 2951 } 2952 2953 /** 2954 * Install shared asynchronous device events handler. 2955 * This function is implemented to support event sharing 2956 * between multiple ports of single IB device. 2957 * 2958 * @param sh 2959 * Pointer to mlx5_dev_ctx_shared object. 2960 */ 2961 void 2962 mlx5_os_dev_shared_handler_install(struct mlx5_dev_ctx_shared *sh) 2963 { 2964 struct ibv_context *ctx = sh->cdev->ctx; 2965 int nlsk_fd; 2966 2967 sh->intr_handle = mlx5_os_interrupt_handler_create 2968 (RTE_INTR_INSTANCE_F_SHARED, true, 2969 ctx->async_fd, mlx5_dev_interrupt_handler, sh); 2970 if (!sh->intr_handle) { 2971 DRV_LOG(ERR, "Failed to allocate intr_handle."); 2972 return; 2973 } 2974 nlsk_fd = mlx5_nl_init(NETLINK_ROUTE, RTMGRP_LINK); 2975 if (nlsk_fd < 0) { 2976 DRV_LOG(ERR, "Failed to create a socket for Netlink events: %s", 2977 rte_strerror(rte_errno)); 2978 return; 2979 } 2980 sh->intr_handle_nl = mlx5_os_interrupt_handler_create 2981 (RTE_INTR_INSTANCE_F_SHARED, true, 2982 nlsk_fd, mlx5_dev_interrupt_handler_nl, sh); 2983 if (sh->intr_handle_nl == NULL) { 2984 DRV_LOG(ERR, "Fail to allocate intr_handle"); 2985 return; 2986 } 2987 if (sh->cdev->config.devx) { 2988 #ifdef HAVE_IBV_DEVX_ASYNC 2989 struct mlx5dv_devx_cmd_comp *devx_comp; 2990 2991 sh->devx_comp = (void *)mlx5_glue->devx_create_cmd_comp(ctx); 2992 devx_comp = sh->devx_comp; 2993 if (!devx_comp) { 2994 DRV_LOG(INFO, "failed to allocate devx_comp."); 2995 return; 2996 } 2997 sh->intr_handle_devx = mlx5_os_interrupt_handler_create 2998 (RTE_INTR_INSTANCE_F_SHARED, true, 2999 devx_comp->fd, 3000 mlx5_dev_interrupt_handler_devx, sh); 3001 if (!sh->intr_handle_devx) { 3002 DRV_LOG(ERR, "Failed to allocate intr_handle."); 3003 return; 3004 } 3005 #endif /* HAVE_IBV_DEVX_ASYNC */ 3006 } 3007 } 3008 3009 /** 3010 * Uninstall shared asynchronous device events handler. 3011 * This function is implemented to support event sharing 3012 * between multiple ports of single IB device. 3013 * 3014 * @param dev 3015 * Pointer to mlx5_dev_ctx_shared object. 3016 */ 3017 void 3018 mlx5_os_dev_shared_handler_uninstall(struct mlx5_dev_ctx_shared *sh) 3019 { 3020 mlx5_os_interrupt_handler_destroy(sh->intr_handle, 3021 mlx5_dev_interrupt_handler, sh); 3022 mlx5_os_interrupt_handler_destroy(sh->intr_handle_nl, 3023 mlx5_dev_interrupt_handler_nl, sh); 3024 #ifdef HAVE_IBV_DEVX_ASYNC 3025 mlx5_os_interrupt_handler_destroy(sh->intr_handle_devx, 3026 mlx5_dev_interrupt_handler_devx, sh); 3027 if (sh->devx_comp) 3028 mlx5_glue->devx_destroy_cmd_comp(sh->devx_comp); 3029 #endif 3030 } 3031 3032 /** 3033 * Read statistics by a named counter. 3034 * 3035 * @param[in] priv 3036 * Pointer to the private device data structure. 3037 * @param[in] ctr_name 3038 * Pointer to the name of the statistic counter to read 3039 * @param[out] stat 3040 * Pointer to read statistic value. 3041 * @return 3042 * 0 on success and stat is valud, 1 if failed to read the value 3043 * rte_errno is set. 3044 * 3045 */ 3046 int 3047 mlx5_os_read_dev_stat(struct mlx5_priv *priv, const char *ctr_name, 3048 uint64_t *stat) 3049 { 3050 int fd; 3051 3052 if (priv->sh) { 3053 if (priv->q_counters != NULL && 3054 strcmp(ctr_name, "out_of_buffer") == 0) { 3055 if (rte_eal_process_type() == RTE_PROC_SECONDARY) { 3056 DRV_LOG(WARNING, "DevX out_of_buffer counter is not supported in the secondary process"); 3057 rte_errno = ENOTSUP; 3058 return 1; 3059 } 3060 return mlx5_devx_cmd_queue_counter_query 3061 (priv->q_counters, 0, (uint32_t *)stat); 3062 } 3063 if (priv->q_counters_hairpin != NULL && 3064 strcmp(ctr_name, "hairpin_out_of_buffer") == 0) { 3065 if (rte_eal_process_type() == RTE_PROC_SECONDARY) { 3066 DRV_LOG(WARNING, "DevX out_of_buffer counter is not supported in the secondary process"); 3067 rte_errno = ENOTSUP; 3068 return 1; 3069 } 3070 return mlx5_devx_cmd_queue_counter_query 3071 (priv->q_counters_hairpin, 0, (uint32_t *)stat); 3072 } 3073 MKSTR(path, "%s/ports/%d/hw_counters/%s", 3074 priv->sh->ibdev_path, 3075 priv->dev_port, 3076 ctr_name); 3077 fd = open(path, O_RDONLY); 3078 /* 3079 * in switchdev the file location is not per port 3080 * but rather in <ibdev_path>/hw_counters/<file_name>. 3081 */ 3082 if (fd == -1) { 3083 MKSTR(path1, "%s/hw_counters/%s", 3084 priv->sh->ibdev_path, 3085 ctr_name); 3086 fd = open(path1, O_RDONLY); 3087 } 3088 if (fd != -1) { 3089 char buf[21] = {'\0'}; 3090 ssize_t n = read(fd, buf, sizeof(buf)); 3091 3092 close(fd); 3093 if (n != -1) { 3094 *stat = strtoull(buf, NULL, 10); 3095 return 0; 3096 } 3097 } 3098 } 3099 *stat = 0; 3100 return 1; 3101 } 3102 3103 /** 3104 * Remove a MAC address from device 3105 * 3106 * @param dev 3107 * Pointer to Ethernet device structure. 3108 * @param index 3109 * MAC address index. 3110 */ 3111 void 3112 mlx5_os_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index) 3113 { 3114 struct mlx5_priv *priv = dev->data->dev_private; 3115 const int vf = priv->sh->dev_cap.vf; 3116 3117 if (vf) 3118 mlx5_nl_mac_addr_remove(priv->nl_socket_route, 3119 mlx5_ifindex(dev), priv->mac_own, 3120 &dev->data->mac_addrs[index], index); 3121 } 3122 3123 /** 3124 * Adds a MAC address to the device 3125 * 3126 * @param dev 3127 * Pointer to Ethernet device structure. 3128 * @param mac_addr 3129 * MAC address to register. 3130 * @param index 3131 * MAC address index. 3132 * 3133 * @return 3134 * 0 on success, a negative errno value otherwise 3135 */ 3136 int 3137 mlx5_os_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac, 3138 uint32_t index) 3139 { 3140 struct mlx5_priv *priv = dev->data->dev_private; 3141 const int vf = priv->sh->dev_cap.vf; 3142 int ret = 0; 3143 3144 if (vf) 3145 ret = mlx5_nl_mac_addr_add(priv->nl_socket_route, 3146 mlx5_ifindex(dev), priv->mac_own, 3147 mac, index); 3148 return ret; 3149 } 3150 3151 /** 3152 * Modify a VF MAC address 3153 * 3154 * @param priv 3155 * Pointer to device private data. 3156 * @param mac_addr 3157 * MAC address to modify into. 3158 * @param iface_idx 3159 * Net device interface index 3160 * @param vf_index 3161 * VF index 3162 * 3163 * @return 3164 * 0 on success, a negative errno value otherwise 3165 */ 3166 int 3167 mlx5_os_vf_mac_addr_modify(struct mlx5_priv *priv, 3168 unsigned int iface_idx, 3169 struct rte_ether_addr *mac_addr, 3170 int vf_index) 3171 { 3172 return mlx5_nl_vf_mac_addr_modify 3173 (priv->nl_socket_route, iface_idx, mac_addr, vf_index); 3174 } 3175 3176 /** 3177 * Set device promiscuous mode 3178 * 3179 * @param dev 3180 * Pointer to Ethernet device structure. 3181 * @param enable 3182 * 0 - promiscuous is disabled, otherwise - enabled 3183 * 3184 * @return 3185 * 0 on success, a negative error value otherwise 3186 */ 3187 int 3188 mlx5_os_set_promisc(struct rte_eth_dev *dev, int enable) 3189 { 3190 struct mlx5_priv *priv = dev->data->dev_private; 3191 3192 return mlx5_nl_promisc(priv->nl_socket_route, 3193 mlx5_ifindex(dev), !!enable); 3194 } 3195 3196 /** 3197 * Set device promiscuous mode 3198 * 3199 * @param dev 3200 * Pointer to Ethernet device structure. 3201 * @param enable 3202 * 0 - all multicase is disabled, otherwise - enabled 3203 * 3204 * @return 3205 * 0 on success, a negative error value otherwise 3206 */ 3207 int 3208 mlx5_os_set_allmulti(struct rte_eth_dev *dev, int enable) 3209 { 3210 struct mlx5_priv *priv = dev->data->dev_private; 3211 3212 return mlx5_nl_allmulti(priv->nl_socket_route, 3213 mlx5_ifindex(dev), !!enable); 3214 } 3215 3216 /** 3217 * Flush device MAC addresses 3218 * 3219 * @param dev 3220 * Pointer to Ethernet device structure. 3221 * 3222 */ 3223 void 3224 mlx5_os_mac_addr_flush(struct rte_eth_dev *dev) 3225 { 3226 struct mlx5_priv *priv = dev->data->dev_private; 3227 3228 mlx5_nl_mac_addr_flush(priv->nl_socket_route, mlx5_ifindex(dev), 3229 dev->data->mac_addrs, 3230 MLX5_MAX_MAC_ADDRESSES, priv->mac_own); 3231 } 3232