1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2015 6WIND S.A.
3 * Copyright 2020 Mellanox Technologies, Ltd
13 #include <linux/rtnetlink.h>
14 #include <linux/sockios.h>
15 #include <linux/ethtool.h>
18 #include <rte_malloc.h>
19 #include <rte_ethdev_driver.h>
20 #include <rte_ethdev_pci.h>
22 #include <rte_bus_pci.h>
23 #include <rte_common.h>
24 #include <rte_kvargs.h>
25 #include <rte_rwlock.h>
26 #include <rte_spinlock.h>
27 #include <rte_string_fns.h>
28 #include <rte_alarm.h>
29 #include <rte_eal_paging.h>
31 #include <mlx5_glue.h>
32 #include <mlx5_devx_cmds.h>
33 #include <mlx5_common.h>
34 #include <mlx5_common_mp.h>
35 #include <mlx5_common_mr.h>
36 #include <mlx5_malloc.h>
38 #include "mlx5_defs.h"
40 #include "mlx5_common_os.h"
41 #include "mlx5_utils.h"
42 #include "mlx5_rxtx.h"
43 #include "mlx5_autoconf.h"
45 #include "mlx5_flow.h"
46 #include "rte_pmd_mlx5.h"
47 #include "mlx5_verbs.h"
49 #include "mlx5_devx.h"
51 #define MLX5_TAGS_HLIST_ARRAY_SIZE 8192
53 #ifndef HAVE_IBV_MLX5_MOD_MPW
54 #define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2)
55 #define MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW (1 << 3)
58 #ifndef HAVE_IBV_MLX5_MOD_CQE_128B_COMP
59 #define MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP (1 << 4)
62 static const char *MZ_MLX5_PMD_SHARED_DATA = "mlx5_pmd_shared_data";
64 /* Spinlock for mlx5_shared_data allocation. */
65 static rte_spinlock_t mlx5_shared_data_lock = RTE_SPINLOCK_INITIALIZER;
67 /* Process local data for secondary processes. */
68 static struct mlx5_local_data mlx5_local_data;
71 * Set the completion channel file descriptor interrupt as non-blocking.
74 * Pointer to RQ channel object, which includes the channel fd
77 * The file descriptor (representing the intetrrupt) used in this channel.
80 * 0 on successfully setting the fd to non-blocking, non-zero otherwise.
83 mlx5_os_set_nonblock_channel_fd(int fd)
87 flags = fcntl(fd, F_GETFL);
88 return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
92 * Get mlx5 device attributes. The glue function query_device_ex() is called
93 * with out parameter of type 'struct ibv_device_attr_ex *'. Then fill in mlx5
94 * device attributes from the glue out parameter.
97 * Pointer to ibv context.
100 * Pointer to mlx5 device attributes.
103 * 0 on success, non zero error number otherwise
106 mlx5_os_get_dev_attr(void *ctx, struct mlx5_dev_attr *device_attr)
109 struct ibv_device_attr_ex attr_ex;
110 memset(device_attr, 0, sizeof(*device_attr));
111 err = mlx5_glue->query_device_ex(ctx, NULL, &attr_ex);
115 device_attr->device_cap_flags_ex = attr_ex.device_cap_flags_ex;
116 device_attr->max_qp_wr = attr_ex.orig_attr.max_qp_wr;
117 device_attr->max_sge = attr_ex.orig_attr.max_sge;
118 device_attr->max_cq = attr_ex.orig_attr.max_cq;
119 device_attr->max_qp = attr_ex.orig_attr.max_qp;
120 device_attr->raw_packet_caps = attr_ex.raw_packet_caps;
121 device_attr->max_rwq_indirection_table_size =
122 attr_ex.rss_caps.max_rwq_indirection_table_size;
123 device_attr->max_tso = attr_ex.tso_caps.max_tso;
124 device_attr->tso_supported_qpts = attr_ex.tso_caps.supported_qpts;
126 struct mlx5dv_context dv_attr = { .comp_mask = 0 };
127 err = mlx5_glue->dv_query_device(ctx, &dv_attr);
131 device_attr->flags = dv_attr.flags;
132 device_attr->comp_mask = dv_attr.comp_mask;
133 #ifdef HAVE_IBV_MLX5_MOD_SWP
134 device_attr->sw_parsing_offloads =
135 dv_attr.sw_parsing_caps.sw_parsing_offloads;
137 device_attr->min_single_stride_log_num_of_bytes =
138 dv_attr.striding_rq_caps.min_single_stride_log_num_of_bytes;
139 device_attr->max_single_stride_log_num_of_bytes =
140 dv_attr.striding_rq_caps.max_single_stride_log_num_of_bytes;
141 device_attr->min_single_wqe_log_num_of_strides =
142 dv_attr.striding_rq_caps.min_single_wqe_log_num_of_strides;
143 device_attr->max_single_wqe_log_num_of_strides =
144 dv_attr.striding_rq_caps.max_single_wqe_log_num_of_strides;
145 device_attr->stride_supported_qpts =
146 dv_attr.striding_rq_caps.supported_qpts;
147 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
148 device_attr->tunnel_offloads_caps = dv_attr.tunnel_offloads_caps;
155 * Verbs callback to allocate a memory. This function should allocate the space
156 * according to the size provided residing inside a huge page.
157 * Please note that all allocation must respect the alignment from libmlx5
158 * (i.e. currently rte_mem_page_size()).
161 * The size in bytes of the memory to allocate.
163 * A pointer to the callback data.
166 * Allocated buffer, NULL otherwise and rte_errno is set.
169 mlx5_alloc_verbs_buf(size_t size, void *data)
171 struct mlx5_priv *priv = data;
173 unsigned int socket = SOCKET_ID_ANY;
174 size_t alignment = rte_mem_page_size();
175 if (alignment == (size_t)-1) {
176 DRV_LOG(ERR, "Failed to get mem page size");
181 if (priv->verbs_alloc_ctx.type == MLX5_VERBS_ALLOC_TYPE_TX_QUEUE) {
182 const struct mlx5_txq_ctrl *ctrl = priv->verbs_alloc_ctx.obj;
184 socket = ctrl->socket;
185 } else if (priv->verbs_alloc_ctx.type ==
186 MLX5_VERBS_ALLOC_TYPE_RX_QUEUE) {
187 const struct mlx5_rxq_ctrl *ctrl = priv->verbs_alloc_ctx.obj;
189 socket = ctrl->socket;
191 MLX5_ASSERT(data != NULL);
192 ret = mlx5_malloc(0, size, alignment, socket);
199 * Verbs callback to free a memory.
202 * A pointer to the memory to free.
204 * A pointer to the callback data.
207 mlx5_free_verbs_buf(void *ptr, void *data __rte_unused)
209 MLX5_ASSERT(data != NULL);
214 * Initialize DR related data within private structure.
215 * Routine checks the reference counter and does actual
216 * resources creation/initialization only if counter is zero.
219 * Pointer to the private device data structure.
222 * Zero on success, positive error code otherwise.
225 mlx5_alloc_shared_dr(struct mlx5_priv *priv)
227 struct mlx5_dev_ctx_shared *sh = priv->sh;
228 char s[MLX5_HLIST_NAMESIZE];
232 err = mlx5_alloc_table_hash_list(priv);
234 DRV_LOG(DEBUG, "sh->flow_tbls[%p] already created, reuse\n",
235 (void *)sh->flow_tbls);
238 /* Create tags hash list table. */
239 snprintf(s, sizeof(s), "%s_tags", sh->ibdev_name);
240 sh->tag_table = mlx5_hlist_create(s, MLX5_TAGS_HLIST_ARRAY_SIZE);
241 if (!sh->tag_table) {
242 DRV_LOG(ERR, "tags with hash creation failed.");
246 snprintf(s, sizeof(s), "%s_hdr_modify", sh->ibdev_name);
247 sh->modify_cmds = mlx5_hlist_create(s, MLX5_FLOW_HDR_MODIFY_HTABLE_SZ);
248 if (!sh->modify_cmds) {
249 DRV_LOG(ERR, "hdr modify hash creation failed");
253 snprintf(s, sizeof(s), "%s_encaps_decaps", sh->ibdev_name);
254 sh->encaps_decaps = mlx5_hlist_create(s,
255 MLX5_FLOW_ENCAP_DECAP_HTABLE_SZ);
256 if (!sh->encaps_decaps) {
257 DRV_LOG(ERR, "encap decap hash creation failed");
261 #ifdef HAVE_MLX5DV_DR
265 /* Shared DV/DR structures is already initialized. */
270 /* Reference counter is zero, we should initialize structures. */
271 domain = mlx5_glue->dr_create_domain(sh->ctx,
272 MLX5DV_DR_DOMAIN_TYPE_NIC_RX);
274 DRV_LOG(ERR, "ingress mlx5dv_dr_create_domain failed");
278 sh->rx_domain = domain;
279 domain = mlx5_glue->dr_create_domain(sh->ctx,
280 MLX5DV_DR_DOMAIN_TYPE_NIC_TX);
282 DRV_LOG(ERR, "egress mlx5dv_dr_create_domain failed");
286 pthread_mutex_init(&sh->dv_mutex, NULL);
287 sh->tx_domain = domain;
288 #ifdef HAVE_MLX5DV_DR_ESWITCH
289 if (priv->config.dv_esw_en) {
290 domain = mlx5_glue->dr_create_domain
291 (sh->ctx, MLX5DV_DR_DOMAIN_TYPE_FDB);
293 DRV_LOG(ERR, "FDB mlx5dv_dr_create_domain failed");
297 sh->fdb_domain = domain;
298 sh->esw_drop_action = mlx5_glue->dr_create_flow_action_drop();
301 if (priv->config.reclaim_mode == MLX5_RCM_AGGR) {
302 mlx5_glue->dr_reclaim_domain_memory(sh->rx_domain, 1);
303 mlx5_glue->dr_reclaim_domain_memory(sh->tx_domain, 1);
305 mlx5_glue->dr_reclaim_domain_memory(sh->fdb_domain, 1);
307 sh->pop_vlan_action = mlx5_glue->dr_create_flow_action_pop_vlan();
308 #endif /* HAVE_MLX5DV_DR */
313 /* Rollback the created objects. */
315 mlx5_glue->dr_destroy_domain(sh->rx_domain);
316 sh->rx_domain = NULL;
319 mlx5_glue->dr_destroy_domain(sh->tx_domain);
320 sh->tx_domain = NULL;
322 if (sh->fdb_domain) {
323 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
324 sh->fdb_domain = NULL;
326 if (sh->esw_drop_action) {
327 mlx5_glue->destroy_flow_action(sh->esw_drop_action);
328 sh->esw_drop_action = NULL;
330 if (sh->pop_vlan_action) {
331 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
332 sh->pop_vlan_action = NULL;
334 if (sh->encaps_decaps) {
335 mlx5_hlist_destroy(sh->encaps_decaps, NULL, NULL);
336 sh->encaps_decaps = NULL;
338 if (sh->modify_cmds) {
339 mlx5_hlist_destroy(sh->modify_cmds, NULL, NULL);
340 sh->modify_cmds = NULL;
343 /* tags should be destroyed with flow before. */
344 mlx5_hlist_destroy(sh->tag_table, NULL, NULL);
345 sh->tag_table = NULL;
347 mlx5_free_table_hash_list(priv);
352 * Destroy DR related data within private structure.
355 * Pointer to the private device data structure.
358 mlx5_os_free_shared_dr(struct mlx5_priv *priv)
360 struct mlx5_dev_ctx_shared *sh;
362 if (!priv->dr_shared)
367 #ifdef HAVE_MLX5DV_DR
368 MLX5_ASSERT(sh->dv_refcnt);
369 if (sh->dv_refcnt && --sh->dv_refcnt)
372 mlx5_glue->dr_destroy_domain(sh->rx_domain);
373 sh->rx_domain = NULL;
376 mlx5_glue->dr_destroy_domain(sh->tx_domain);
377 sh->tx_domain = NULL;
379 #ifdef HAVE_MLX5DV_DR_ESWITCH
380 if (sh->fdb_domain) {
381 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
382 sh->fdb_domain = NULL;
384 if (sh->esw_drop_action) {
385 mlx5_glue->destroy_flow_action(sh->esw_drop_action);
386 sh->esw_drop_action = NULL;
389 if (sh->pop_vlan_action) {
390 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
391 sh->pop_vlan_action = NULL;
393 pthread_mutex_destroy(&sh->dv_mutex);
394 #endif /* HAVE_MLX5DV_DR */
395 if (sh->encaps_decaps) {
396 mlx5_hlist_destroy(sh->encaps_decaps, NULL, NULL);
397 sh->encaps_decaps = NULL;
399 if (sh->modify_cmds) {
400 mlx5_hlist_destroy(sh->modify_cmds, NULL, NULL);
401 sh->modify_cmds = NULL;
404 /* tags should be destroyed with flow before. */
405 mlx5_hlist_destroy(sh->tag_table, NULL, NULL);
406 sh->tag_table = NULL;
408 mlx5_free_table_hash_list(priv);
412 * Initialize shared data between primary and secondary process.
414 * A memzone is reserved by primary process and secondary processes attach to
418 * 0 on success, a negative errno value otherwise and rte_errno is set.
421 mlx5_init_shared_data(void)
423 const struct rte_memzone *mz;
426 rte_spinlock_lock(&mlx5_shared_data_lock);
427 if (mlx5_shared_data == NULL) {
428 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
429 /* Allocate shared memory. */
430 mz = rte_memzone_reserve(MZ_MLX5_PMD_SHARED_DATA,
431 sizeof(*mlx5_shared_data),
435 "Cannot allocate mlx5 shared data");
439 mlx5_shared_data = mz->addr;
440 memset(mlx5_shared_data, 0, sizeof(*mlx5_shared_data));
441 rte_spinlock_init(&mlx5_shared_data->lock);
443 /* Lookup allocated shared memory. */
444 mz = rte_memzone_lookup(MZ_MLX5_PMD_SHARED_DATA);
447 "Cannot attach mlx5 shared data");
451 mlx5_shared_data = mz->addr;
452 memset(&mlx5_local_data, 0, sizeof(mlx5_local_data));
456 rte_spinlock_unlock(&mlx5_shared_data_lock);
461 * PMD global initialization.
463 * Independent from individual device, this function initializes global
464 * per-PMD data structures distinguishing primary and secondary processes.
465 * Hence, each initialization is called once per a process.
468 * 0 on success, a negative errno value otherwise and rte_errno is set.
473 struct mlx5_shared_data *sd;
474 struct mlx5_local_data *ld = &mlx5_local_data;
477 if (mlx5_init_shared_data())
479 sd = mlx5_shared_data;
481 rte_spinlock_lock(&sd->lock);
482 switch (rte_eal_process_type()) {
483 case RTE_PROC_PRIMARY:
486 LIST_INIT(&sd->mem_event_cb_list);
487 rte_rwlock_init(&sd->mem_event_rwlock);
488 rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
489 mlx5_mr_mem_event_cb, NULL);
490 ret = mlx5_mp_init_primary(MLX5_MP_NAME,
491 mlx5_mp_os_primary_handle);
494 sd->init_done = true;
496 case RTE_PROC_SECONDARY:
499 ret = mlx5_mp_init_secondary(MLX5_MP_NAME,
500 mlx5_mp_os_secondary_handle);
504 ld->init_done = true;
510 rte_spinlock_unlock(&sd->lock);
515 * Create the Tx queue DevX/Verbs object.
518 * Pointer to Ethernet device.
520 * Queue index in DPDK Tx queue array.
523 * 0 on success, a negative errno value otherwise and rte_errno is set.
526 mlx5_os_txq_obj_new(struct rte_eth_dev *dev, uint16_t idx)
528 struct mlx5_priv *priv = dev->data->dev_private;
529 struct mlx5_txq_data *txq_data = (*priv->txqs)[idx];
530 struct mlx5_txq_ctrl *txq_ctrl =
531 container_of(txq_data, struct mlx5_txq_ctrl, txq);
533 if (txq_ctrl->type == MLX5_TXQ_TYPE_HAIRPIN)
534 return mlx5_txq_devx_obj_new(dev, idx);
535 #ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET
536 if (!priv->config.dv_esw_en)
537 return mlx5_txq_devx_obj_new(dev, idx);
539 return mlx5_txq_ibv_obj_new(dev, idx);
543 * Release an Tx DevX/verbs queue object.
546 * DevX/Verbs Tx queue object.
549 mlx5_os_txq_obj_release(struct mlx5_txq_obj *txq_obj)
551 if (txq_obj->txq_ctrl->type == MLX5_TXQ_TYPE_HAIRPIN) {
552 mlx5_txq_devx_obj_release(txq_obj);
555 #ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET
556 if (!txq_obj->txq_ctrl->priv->config.dv_esw_en) {
557 mlx5_txq_devx_obj_release(txq_obj);
561 mlx5_txq_ibv_obj_release(txq_obj);
565 * Spawn an Ethernet device from Verbs information.
568 * Backing DPDK device.
570 * Verbs device parameters (name, port, switch_info) to spawn.
572 * Device configuration parameters.
575 * A valid Ethernet device object on success, NULL otherwise and rte_errno
576 * is set. The following errors are defined:
578 * EBUSY: device is not supposed to be spawned.
579 * EEXIST: device is already spawned
581 static struct rte_eth_dev *
582 mlx5_dev_spawn(struct rte_device *dpdk_dev,
583 struct mlx5_dev_spawn_data *spawn,
584 struct mlx5_dev_config *config)
586 const struct mlx5_switch_info *switch_info = &spawn->info;
587 struct mlx5_dev_ctx_shared *sh = NULL;
588 struct ibv_port_attr port_attr;
589 struct mlx5dv_context dv_attr = { .comp_mask = 0 };
590 struct rte_eth_dev *eth_dev = NULL;
591 struct mlx5_priv *priv = NULL;
593 unsigned int hw_padding = 0;
595 unsigned int cqe_comp;
596 unsigned int cqe_pad = 0;
597 unsigned int tunnel_en = 0;
598 unsigned int mpls_en = 0;
599 unsigned int swp = 0;
600 unsigned int mprq = 0;
601 unsigned int mprq_min_stride_size_n = 0;
602 unsigned int mprq_max_stride_size_n = 0;
603 unsigned int mprq_min_stride_num_n = 0;
604 unsigned int mprq_max_stride_num_n = 0;
605 struct rte_ether_addr mac;
606 char name[RTE_ETH_NAME_MAX_LEN];
607 int own_domain_id = 0;
610 #ifdef HAVE_MLX5DV_DR_DEVX_PORT
611 struct mlx5dv_devx_port devx_port = { .comp_mask = 0 };
614 /* Determine if this port representor is supposed to be spawned. */
615 if (switch_info->representor && dpdk_dev->devargs) {
616 struct rte_eth_devargs eth_da;
618 err = rte_eth_devargs_parse(dpdk_dev->devargs->args, ð_da);
621 DRV_LOG(ERR, "failed to process device arguments: %s",
622 strerror(rte_errno));
625 for (i = 0; i < eth_da.nb_representor_ports; ++i)
626 if (eth_da.representor_ports[i] ==
627 (uint16_t)switch_info->port_name)
629 if (i == eth_da.nb_representor_ports) {
634 /* Build device name. */
635 if (spawn->pf_bond < 0) {
637 if (!switch_info->representor)
638 strlcpy(name, dpdk_dev->name, sizeof(name));
640 snprintf(name, sizeof(name), "%s_representor_%u",
641 dpdk_dev->name, switch_info->port_name);
643 /* Bonding device. */
644 if (!switch_info->representor)
645 snprintf(name, sizeof(name), "%s_%s",
647 mlx5_os_get_dev_device_name(spawn->phys_dev));
649 snprintf(name, sizeof(name), "%s_%s_representor_%u",
651 mlx5_os_get_dev_device_name(spawn->phys_dev),
652 switch_info->port_name);
654 /* check if the device is already spawned */
655 if (rte_eth_dev_get_port_by_name(name, &port_id) == 0) {
659 DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name);
660 if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
661 struct mlx5_mp_id mp_id;
663 eth_dev = rte_eth_dev_attach_secondary(name);
664 if (eth_dev == NULL) {
665 DRV_LOG(ERR, "can not attach rte ethdev");
669 eth_dev->device = dpdk_dev;
670 eth_dev->dev_ops = &mlx5_os_dev_sec_ops;
671 eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status;
672 eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status;
673 err = mlx5_proc_priv_init(eth_dev);
676 mp_id.port_id = eth_dev->data->port_id;
677 strlcpy(mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
678 /* Receive command fd from primary process */
679 err = mlx5_mp_req_verbs_cmd_fd(&mp_id);
682 /* Remap UAR for Tx queues. */
683 err = mlx5_tx_uar_init_secondary(eth_dev, err);
687 * Ethdev pointer is still required as input since
688 * the primary device is not accessible from the
691 eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev);
692 eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev);
695 mlx5_dev_close(eth_dev);
699 * Some parameters ("tx_db_nc" in particularly) are needed in
700 * advance to create dv/verbs device context. We proceed the
701 * devargs here to get ones, and later proceed devargs again
702 * to override some hardware settings.
704 err = mlx5_args(config, dpdk_dev->devargs);
707 DRV_LOG(ERR, "failed to process device arguments: %s",
708 strerror(rte_errno));
711 mlx5_malloc_mem_select(config->sys_mem_en);
712 sh = mlx5_alloc_shared_dev_ctx(spawn, config);
715 config->devx = sh->devx;
716 #ifdef HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR
717 config->dest_tir = 1;
719 #ifdef HAVE_IBV_MLX5_MOD_SWP
720 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP;
723 * Multi-packet send is supported by ConnectX-4 Lx PF as well
724 * as all ConnectX-5 devices.
726 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
727 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS;
729 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
730 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ;
732 mlx5_glue->dv_query_device(sh->ctx, &dv_attr);
733 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) {
734 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) {
735 DRV_LOG(DEBUG, "enhanced MPW is supported");
736 mps = MLX5_MPW_ENHANCED;
738 DRV_LOG(DEBUG, "MPW is supported");
742 DRV_LOG(DEBUG, "MPW isn't supported");
743 mps = MLX5_MPW_DISABLED;
745 #ifdef HAVE_IBV_MLX5_MOD_SWP
746 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_SWP)
747 swp = dv_attr.sw_parsing_caps.sw_parsing_offloads;
748 DRV_LOG(DEBUG, "SWP support: %u", swp);
751 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
752 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) {
753 struct mlx5dv_striding_rq_caps mprq_caps =
754 dv_attr.striding_rq_caps;
756 DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %d",
757 mprq_caps.min_single_stride_log_num_of_bytes);
758 DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %d",
759 mprq_caps.max_single_stride_log_num_of_bytes);
760 DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %d",
761 mprq_caps.min_single_wqe_log_num_of_strides);
762 DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %d",
763 mprq_caps.max_single_wqe_log_num_of_strides);
764 DRV_LOG(DEBUG, "\tsupported_qpts: %d",
765 mprq_caps.supported_qpts);
766 DRV_LOG(DEBUG, "device supports Multi-Packet RQ");
768 mprq_min_stride_size_n =
769 mprq_caps.min_single_stride_log_num_of_bytes;
770 mprq_max_stride_size_n =
771 mprq_caps.max_single_stride_log_num_of_bytes;
772 mprq_min_stride_num_n =
773 mprq_caps.min_single_wqe_log_num_of_strides;
774 mprq_max_stride_num_n =
775 mprq_caps.max_single_wqe_log_num_of_strides;
778 if (RTE_CACHE_LINE_SIZE == 128 &&
779 !(dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP))
783 config->cqe_comp = cqe_comp;
784 #ifdef HAVE_IBV_MLX5_MOD_CQE_128B_PAD
785 /* Whether device supports 128B Rx CQE padding. */
786 cqe_pad = RTE_CACHE_LINE_SIZE == 128 &&
787 (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_PAD);
789 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
790 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) {
791 tunnel_en = ((dv_attr.tunnel_offloads_caps &
792 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_VXLAN) &&
793 (dv_attr.tunnel_offloads_caps &
794 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GRE) &&
795 (dv_attr.tunnel_offloads_caps &
796 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GENEVE));
798 DRV_LOG(DEBUG, "tunnel offloading is %ssupported",
799 tunnel_en ? "" : "not ");
802 "tunnel offloading disabled due to old OFED/rdma-core version");
804 config->tunnel_en = tunnel_en;
805 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
806 mpls_en = ((dv_attr.tunnel_offloads_caps &
807 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_GRE) &&
808 (dv_attr.tunnel_offloads_caps &
809 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_UDP));
810 DRV_LOG(DEBUG, "MPLS over GRE/UDP tunnel offloading is %ssupported",
811 mpls_en ? "" : "not ");
813 DRV_LOG(WARNING, "MPLS over GRE/UDP tunnel offloading disabled due to"
814 " old OFED/rdma-core version or firmware configuration");
816 config->mpls_en = mpls_en;
817 /* Check port status. */
818 err = mlx5_glue->query_port(sh->ctx, spawn->phys_port, &port_attr);
820 DRV_LOG(ERR, "port query failed: %s", strerror(err));
823 if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) {
824 DRV_LOG(ERR, "port is not configured in Ethernet mode");
828 if (port_attr.state != IBV_PORT_ACTIVE)
829 DRV_LOG(DEBUG, "port is not active: \"%s\" (%d)",
830 mlx5_glue->port_state_str(port_attr.state),
832 /* Allocate private eth device data. */
833 priv = mlx5_malloc(MLX5_MEM_ZERO | MLX5_MEM_RTE,
835 RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
837 DRV_LOG(ERR, "priv allocation failure");
842 priv->dev_port = spawn->phys_port;
843 priv->pci_dev = spawn->pci_dev;
844 priv->mtu = RTE_ETHER_MTU;
845 priv->mp_id.port_id = port_id;
846 strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
847 /* Some internal functions rely on Netlink sockets, open them now. */
848 priv->nl_socket_rdma = mlx5_nl_init(NETLINK_RDMA);
849 priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE);
850 priv->representor = !!switch_info->representor;
851 priv->master = !!switch_info->master;
852 priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
853 priv->vport_meta_tag = 0;
854 priv->vport_meta_mask = 0;
855 priv->pf_bond = spawn->pf_bond;
856 #ifdef HAVE_MLX5DV_DR_DEVX_PORT
858 * The DevX port query API is implemented. E-Switch may use
859 * either vport or reg_c[0] metadata register to match on
860 * vport index. The engaged part of metadata register is
863 if (switch_info->representor || switch_info->master) {
864 devx_port.comp_mask = MLX5DV_DEVX_PORT_VPORT |
865 MLX5DV_DEVX_PORT_MATCH_REG_C_0;
866 err = mlx5_glue->devx_port_query(sh->ctx, spawn->phys_port,
870 "can't query devx port %d on device %s",
872 mlx5_os_get_dev_device_name(spawn->phys_dev));
873 devx_port.comp_mask = 0;
876 if (devx_port.comp_mask & MLX5DV_DEVX_PORT_MATCH_REG_C_0) {
877 priv->vport_meta_tag = devx_port.reg_c_0.value;
878 priv->vport_meta_mask = devx_port.reg_c_0.mask;
879 if (!priv->vport_meta_mask) {
880 DRV_LOG(ERR, "vport zero mask for port %d"
881 " on bonding device %s",
883 mlx5_os_get_dev_device_name
888 if (priv->vport_meta_tag & ~priv->vport_meta_mask) {
889 DRV_LOG(ERR, "invalid vport tag for port %d"
890 " on bonding device %s",
892 mlx5_os_get_dev_device_name
898 if (devx_port.comp_mask & MLX5DV_DEVX_PORT_VPORT) {
899 priv->vport_id = devx_port.vport_num;
900 } else if (spawn->pf_bond >= 0) {
901 DRV_LOG(ERR, "can't deduce vport index for port %d"
902 " on bonding device %s",
904 mlx5_os_get_dev_device_name(spawn->phys_dev));
908 /* Suppose vport index in compatible way. */
909 priv->vport_id = switch_info->representor ?
910 switch_info->port_name + 1 : -1;
914 * Kernel/rdma_core support single E-Switch per PF configurations
915 * only and vport_id field contains the vport index for
916 * associated VF, which is deduced from representor port name.
917 * For example, let's have the IB device port 10, it has
918 * attached network device eth0, which has port name attribute
919 * pf0vf2, we can deduce the VF number as 2, and set vport index
920 * as 3 (2+1). This assigning schema should be changed if the
921 * multiple E-Switch instances per PF configurations or/and PCI
922 * subfunctions are added.
924 priv->vport_id = switch_info->representor ?
925 switch_info->port_name + 1 : -1;
927 /* representor_id field keeps the unmodified VF index. */
928 priv->representor_id = switch_info->representor ?
929 switch_info->port_name : -1;
931 * Look for sibling devices in order to reuse their switch domain
932 * if any, otherwise allocate one.
934 MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) {
935 const struct mlx5_priv *opriv =
936 rte_eth_devices[port_id].data->dev_private;
939 opriv->sh != priv->sh ||
941 RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
943 priv->domain_id = opriv->domain_id;
946 if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
947 err = rte_eth_switch_domain_alloc(&priv->domain_id);
950 DRV_LOG(ERR, "unable to allocate switch domain: %s",
951 strerror(rte_errno));
956 /* Override some values set by hardware configuration. */
957 mlx5_args(config, dpdk_dev->devargs);
958 err = mlx5_dev_check_sibling_config(priv, config);
961 config->hw_csum = !!(sh->device_attr.device_cap_flags_ex &
962 IBV_DEVICE_RAW_IP_CSUM);
963 DRV_LOG(DEBUG, "checksum offloading is %ssupported",
964 (config->hw_csum ? "" : "not "));
965 #if !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) && \
966 !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
967 DRV_LOG(DEBUG, "counters are not supported");
969 #if !defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_MLX5DV_DR)
970 if (config->dv_flow_en) {
971 DRV_LOG(WARNING, "DV flow is not supported");
972 config->dv_flow_en = 0;
975 config->ind_table_max_size =
976 sh->device_attr.max_rwq_indirection_table_size;
978 * Remove this check once DPDK supports larger/variable
979 * indirection tables.
981 if (config->ind_table_max_size > (unsigned int)ETH_RSS_RETA_SIZE_512)
982 config->ind_table_max_size = ETH_RSS_RETA_SIZE_512;
983 DRV_LOG(DEBUG, "maximum Rx indirection table size is %u",
984 config->ind_table_max_size);
985 config->hw_vlan_strip = !!(sh->device_attr.raw_packet_caps &
986 IBV_RAW_PACKET_CAP_CVLAN_STRIPPING);
987 DRV_LOG(DEBUG, "VLAN stripping is %ssupported",
988 (config->hw_vlan_strip ? "" : "not "));
989 config->hw_fcs_strip = !!(sh->device_attr.raw_packet_caps &
990 IBV_RAW_PACKET_CAP_SCATTER_FCS);
991 #if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING)
992 hw_padding = !!sh->device_attr.rx_pad_end_addr_align;
993 #elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING)
994 hw_padding = !!(sh->device_attr.device_cap_flags_ex &
995 IBV_DEVICE_PCI_WRITE_END_PADDING);
997 if (config->hw_padding && !hw_padding) {
998 DRV_LOG(DEBUG, "Rx end alignment padding isn't supported");
999 config->hw_padding = 0;
1000 } else if (config->hw_padding) {
1001 DRV_LOG(DEBUG, "Rx end alignment padding is enabled");
1003 config->tso = (sh->device_attr.max_tso > 0 &&
1004 (sh->device_attr.tso_supported_qpts &
1005 (1 << IBV_QPT_RAW_PACKET)));
1007 config->tso_max_payload_sz = sh->device_attr.max_tso;
1009 * MPW is disabled by default, while the Enhanced MPW is enabled
1012 if (config->mps == MLX5_ARG_UNSET)
1013 config->mps = (mps == MLX5_MPW_ENHANCED) ? MLX5_MPW_ENHANCED :
1016 config->mps = config->mps ? mps : MLX5_MPW_DISABLED;
1017 DRV_LOG(INFO, "%sMPS is %s",
1018 config->mps == MLX5_MPW_ENHANCED ? "enhanced " :
1019 config->mps == MLX5_MPW ? "legacy " : "",
1020 config->mps != MLX5_MPW_DISABLED ? "enabled" : "disabled");
1021 if (config->cqe_comp && !cqe_comp) {
1022 DRV_LOG(WARNING, "Rx CQE compression isn't supported");
1023 config->cqe_comp = 0;
1025 if (config->cqe_pad && !cqe_pad) {
1026 DRV_LOG(WARNING, "Rx CQE padding isn't supported");
1027 config->cqe_pad = 0;
1028 } else if (config->cqe_pad) {
1029 DRV_LOG(INFO, "Rx CQE padding is enabled");
1032 priv->counter_fallback = 0;
1033 err = mlx5_devx_cmd_query_hca_attr(sh->ctx, &config->hca_attr);
1038 if (!config->hca_attr.flow_counters_dump)
1039 priv->counter_fallback = 1;
1040 #ifndef HAVE_IBV_DEVX_ASYNC
1041 priv->counter_fallback = 1;
1043 if (priv->counter_fallback)
1044 DRV_LOG(INFO, "Use fall-back DV counter management");
1045 /* Check for LRO support. */
1046 if (config->dest_tir && config->hca_attr.lro_cap &&
1047 config->dv_flow_en) {
1048 /* TBD check tunnel lro caps. */
1049 config->lro.supported = config->hca_attr.lro_cap;
1050 DRV_LOG(DEBUG, "Device supports LRO");
1052 * If LRO timeout is not configured by application,
1053 * use the minimal supported value.
1055 if (!config->lro.timeout)
1056 config->lro.timeout =
1057 config->hca_attr.lro_timer_supported_periods[0];
1058 DRV_LOG(DEBUG, "LRO session timeout set to %d usec",
1059 config->lro.timeout);
1060 DRV_LOG(DEBUG, "LRO minimal size of TCP segment "
1061 "required for coalescing is %d bytes",
1062 config->hca_attr.lro_min_mss_size);
1064 #if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER)
1065 if (config->hca_attr.qos.sup &&
1066 config->hca_attr.qos.srtcm_sup &&
1067 config->dv_flow_en) {
1068 uint8_t reg_c_mask =
1069 config->hca_attr.qos.flow_meter_reg_c_ids;
1071 * Meter needs two REG_C's for color match and pre-sfx
1072 * flow match. Here get the REG_C for color match.
1073 * REG_C_0 and REG_C_1 is reserved for metadata feature.
1076 if (__builtin_popcount(reg_c_mask) < 1) {
1078 DRV_LOG(WARNING, "No available register for"
1081 priv->mtr_color_reg = ffs(reg_c_mask) - 1 +
1084 priv->mtr_reg_share =
1085 config->hca_attr.qos.flow_meter_reg_share;
1086 DRV_LOG(DEBUG, "The REG_C meter uses is %d",
1087 priv->mtr_color_reg);
1091 #if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE)
1092 if (config->hca_attr.log_max_ft_sampler_num > 0 &&
1093 config->dv_flow_en) {
1094 priv->sampler_en = 1;
1095 DRV_LOG(DEBUG, "The Sampler enabled!\n");
1097 priv->sampler_en = 0;
1098 if (!config->hca_attr.log_max_ft_sampler_num)
1099 DRV_LOG(WARNING, "No available register for"
1102 DRV_LOG(DEBUG, "DV flow is not supported!\n");
1106 if (config->tx_pp) {
1107 DRV_LOG(DEBUG, "Timestamp counter frequency %u kHz",
1108 config->hca_attr.dev_freq_khz);
1109 DRV_LOG(DEBUG, "Packet pacing is %ssupported",
1110 config->hca_attr.qos.packet_pacing ? "" : "not ");
1111 DRV_LOG(DEBUG, "Cross channel ops are %ssupported",
1112 config->hca_attr.cross_channel ? "" : "not ");
1113 DRV_LOG(DEBUG, "WQE index ignore is %ssupported",
1114 config->hca_attr.wqe_index_ignore ? "" : "not ");
1115 DRV_LOG(DEBUG, "Non-wire SQ feature is %ssupported",
1116 config->hca_attr.non_wire_sq ? "" : "not ");
1117 DRV_LOG(DEBUG, "Static WQE SQ feature is %ssupported (%d)",
1118 config->hca_attr.log_max_static_sq_wq ? "" : "not ",
1119 config->hca_attr.log_max_static_sq_wq);
1120 DRV_LOG(DEBUG, "WQE rate PP mode is %ssupported",
1121 config->hca_attr.qos.wqe_rate_pp ? "" : "not ");
1122 if (!config->devx) {
1123 DRV_LOG(ERR, "DevX is required for packet pacing");
1127 if (!config->hca_attr.qos.packet_pacing) {
1128 DRV_LOG(ERR, "Packet pacing is not supported");
1132 if (!config->hca_attr.cross_channel) {
1133 DRV_LOG(ERR, "Cross channel operations are"
1134 " required for packet pacing");
1138 if (!config->hca_attr.wqe_index_ignore) {
1139 DRV_LOG(ERR, "WQE index ignore feature is"
1140 " required for packet pacing");
1144 if (!config->hca_attr.non_wire_sq) {
1145 DRV_LOG(ERR, "Non-wire SQ feature is"
1146 " required for packet pacing");
1150 if (!config->hca_attr.log_max_static_sq_wq) {
1151 DRV_LOG(ERR, "Static WQE SQ feature is"
1152 " required for packet pacing");
1156 if (!config->hca_attr.qos.wqe_rate_pp) {
1157 DRV_LOG(ERR, "WQE rate mode is required"
1158 " for packet pacing");
1162 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET
1163 DRV_LOG(ERR, "DevX does not provide UAR offset,"
1164 " can't create queues for packet pacing");
1170 uint32_t reg[MLX5_ST_SZ_DW(register_mtutc)];
1172 err = config->hca_attr.access_register_user ?
1173 mlx5_devx_cmd_register_read
1174 (sh->ctx, MLX5_REGISTER_ID_MTUTC, 0,
1175 reg, MLX5_ST_SZ_DW(register_mtutc)) : ENOTSUP;
1179 /* MTUTC register is read successfully. */
1180 ts_mode = MLX5_GET(register_mtutc, reg,
1182 if (ts_mode == MLX5_MTUTC_TIMESTAMP_MODE_REAL_TIME)
1183 config->rt_timestamp = 1;
1185 /* Kernel does not support register reading. */
1186 if (config->hca_attr.dev_freq_khz ==
1187 (NS_PER_S / MS_PER_S))
1188 config->rt_timestamp = 1;
1192 * If HW has bug working with tunnel packet decapsulation and
1193 * scatter FCS, and decapsulation is needed, clear the hw_fcs_strip
1194 * bit. Then DEV_RX_OFFLOAD_KEEP_CRC bit will not be set anymore.
1196 if (config->hca_attr.scatter_fcs_w_decap_disable && config->decap_en)
1197 config->hw_fcs_strip = 0;
1198 DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported",
1199 (config->hw_fcs_strip ? "" : "not "));
1200 if (config->mprq.enabled && mprq) {
1201 if (config->mprq.stride_num_n &&
1202 (config->mprq.stride_num_n > mprq_max_stride_num_n ||
1203 config->mprq.stride_num_n < mprq_min_stride_num_n)) {
1204 config->mprq.stride_num_n =
1205 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N,
1206 mprq_min_stride_num_n),
1207 mprq_max_stride_num_n);
1209 "the number of strides"
1210 " for Multi-Packet RQ is out of range,"
1211 " setting default value (%u)",
1212 1 << config->mprq.stride_num_n);
1214 if (config->mprq.stride_size_n &&
1215 (config->mprq.stride_size_n > mprq_max_stride_size_n ||
1216 config->mprq.stride_size_n < mprq_min_stride_size_n)) {
1217 config->mprq.stride_size_n =
1218 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_SIZE_N,
1219 mprq_min_stride_size_n),
1220 mprq_max_stride_size_n);
1222 "the size of a stride"
1223 " for Multi-Packet RQ is out of range,"
1224 " setting default value (%u)",
1225 1 << config->mprq.stride_size_n);
1227 config->mprq.min_stride_size_n = mprq_min_stride_size_n;
1228 config->mprq.max_stride_size_n = mprq_max_stride_size_n;
1229 } else if (config->mprq.enabled && !mprq) {
1230 DRV_LOG(WARNING, "Multi-Packet RQ isn't supported");
1231 config->mprq.enabled = 0;
1233 if (config->max_dump_files_num == 0)
1234 config->max_dump_files_num = 128;
1235 eth_dev = rte_eth_dev_allocate(name);
1236 if (eth_dev == NULL) {
1237 DRV_LOG(ERR, "can not allocate rte ethdev");
1241 if (priv->representor) {
1242 eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
1243 eth_dev->data->representor_id = priv->representor_id;
1246 * Store associated network device interface index. This index
1247 * is permanent throughout the lifetime of device. So, we may store
1248 * the ifindex here and use the cached value further.
1250 MLX5_ASSERT(spawn->ifindex);
1251 priv->if_index = spawn->ifindex;
1252 if (priv->pf_bond >= 0 && priv->master) {
1253 /* Get bond interface info */
1254 err = mlx5_sysfs_bond_info(priv->if_index,
1255 &priv->bond_ifindex,
1258 DRV_LOG(ERR, "unable to get bond info: %s",
1259 strerror(rte_errno));
1261 DRV_LOG(INFO, "PF device %u, bond device %u(%s)",
1262 priv->if_index, priv->bond_ifindex,
1265 eth_dev->data->dev_private = priv;
1266 priv->dev_data = eth_dev->data;
1267 eth_dev->data->mac_addrs = priv->mac;
1268 eth_dev->device = dpdk_dev;
1269 eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
1270 /* Configure the first MAC address by default. */
1271 if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) {
1273 "port %u cannot get MAC address, is mlx5_en"
1274 " loaded? (errno: %s)",
1275 eth_dev->data->port_id, strerror(rte_errno));
1280 "port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x",
1281 eth_dev->data->port_id,
1282 mac.addr_bytes[0], mac.addr_bytes[1],
1283 mac.addr_bytes[2], mac.addr_bytes[3],
1284 mac.addr_bytes[4], mac.addr_bytes[5]);
1285 #ifdef RTE_LIBRTE_MLX5_DEBUG
1287 char ifname[IF_NAMESIZE];
1289 if (mlx5_get_ifname(eth_dev, &ifname) == 0)
1290 DRV_LOG(DEBUG, "port %u ifname is \"%s\"",
1291 eth_dev->data->port_id, ifname);
1293 DRV_LOG(DEBUG, "port %u ifname is unknown",
1294 eth_dev->data->port_id);
1297 /* Get actual MTU if possible. */
1298 err = mlx5_get_mtu(eth_dev, &priv->mtu);
1303 DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id,
1305 /* Initialize burst functions to prevent crashes before link-up. */
1306 eth_dev->rx_pkt_burst = removed_rx_burst;
1307 eth_dev->tx_pkt_burst = removed_tx_burst;
1308 eth_dev->dev_ops = &mlx5_os_dev_ops;
1309 eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status;
1310 eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status;
1311 eth_dev->rx_queue_count = mlx5_rx_queue_count;
1312 /* Register MAC address. */
1313 claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0));
1314 if (config->vf && config->vf_nl_en)
1315 mlx5_nl_mac_addr_sync(priv->nl_socket_route,
1316 mlx5_ifindex(eth_dev),
1317 eth_dev->data->mac_addrs,
1318 MLX5_MAX_MAC_ADDRESSES);
1320 priv->ctrl_flows = 0;
1321 TAILQ_INIT(&priv->flow_meters);
1322 TAILQ_INIT(&priv->flow_meter_profiles);
1323 /* Hint libmlx5 to use PMD allocator for data plane resources */
1324 mlx5_glue->dv_set_context_attr(sh->ctx,
1325 MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
1326 (void *)((uintptr_t)&(struct mlx5dv_ctx_allocators){
1327 .alloc = &mlx5_alloc_verbs_buf,
1328 .free = &mlx5_free_verbs_buf,
1331 /* Bring Ethernet device up. */
1332 DRV_LOG(DEBUG, "port %u forcing Ethernet interface up",
1333 eth_dev->data->port_id);
1334 mlx5_set_link_up(eth_dev);
1336 * Even though the interrupt handler is not installed yet,
1337 * interrupts will still trigger on the async_fd from
1338 * Verbs context returned by ibv_open_device().
1340 mlx5_link_update(eth_dev, 0);
1341 #ifdef HAVE_MLX5DV_DR_ESWITCH
1342 if (!(config->hca_attr.eswitch_manager && config->dv_flow_en &&
1343 (switch_info->representor || switch_info->master)))
1344 config->dv_esw_en = 0;
1346 config->dv_esw_en = 0;
1348 /* Detect minimal data bytes to inline. */
1349 mlx5_set_min_inline(spawn, config);
1350 /* Store device configuration on private structure. */
1351 priv->config = *config;
1352 /* Create context for virtual machine VLAN workaround. */
1353 priv->vmwa_context = mlx5_vlan_vmwa_init(eth_dev, spawn->ifindex);
1354 if (config->dv_flow_en) {
1355 err = mlx5_alloc_shared_dr(priv);
1359 * RSS id is shared with meter flow id. Meter flow id can only
1360 * use the 24 MSB of the register.
1362 priv->qrss_id_pool = mlx5_flow_id_pool_alloc(UINT32_MAX >>
1363 MLX5_MTR_COLOR_BITS);
1364 if (!priv->qrss_id_pool) {
1365 DRV_LOG(ERR, "can't create flow id pool");
1370 if (config->devx && config->dv_flow_en && config->dest_tir) {
1371 priv->obj_ops = devx_obj_ops;
1372 priv->obj_ops.drop_action_create =
1373 ibv_obj_ops.drop_action_create;
1374 priv->obj_ops.drop_action_destroy =
1375 ibv_obj_ops.drop_action_destroy;
1376 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET
1377 priv->obj_ops.txq_obj_modify = ibv_obj_ops.txq_obj_modify;
1379 if (config->dv_esw_en)
1380 priv->obj_ops.txq_obj_modify =
1381 ibv_obj_ops.txq_obj_modify;
1383 /* Use specific wrappers for Tx object. */
1384 priv->obj_ops.txq_obj_new = mlx5_os_txq_obj_new;
1385 priv->obj_ops.txq_obj_release = mlx5_os_txq_obj_release;
1388 priv->obj_ops = ibv_obj_ops;
1390 /* Supported Verbs flow priority number detection. */
1391 err = mlx5_flow_discover_priorities(eth_dev);
1396 priv->config.flow_prio = err;
1397 if (!priv->config.dv_esw_en &&
1398 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1399 DRV_LOG(WARNING, "metadata mode %u is not supported "
1400 "(no E-Switch)", priv->config.dv_xmeta_en);
1401 priv->config.dv_xmeta_en = MLX5_XMETA_MODE_LEGACY;
1403 mlx5_set_metadata_mask(eth_dev);
1404 if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1405 !priv->sh->dv_regc0_mask) {
1406 DRV_LOG(ERR, "metadata mode %u is not supported "
1407 "(no metadata reg_c[0] is available)",
1408 priv->config.dv_xmeta_en);
1413 * Allocate the buffer for flow creating, just once.
1414 * The allocation must be done before any flow creating.
1416 mlx5_flow_alloc_intermediate(eth_dev);
1417 /* Query availability of metadata reg_c's. */
1418 err = mlx5_flow_discover_mreg_c(eth_dev);
1423 if (!mlx5_flow_ext_mreg_supported(eth_dev)) {
1425 "port %u extensive metadata register is not supported",
1426 eth_dev->data->port_id);
1427 if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1428 DRV_LOG(ERR, "metadata mode %u is not supported "
1429 "(no metadata registers available)",
1430 priv->config.dv_xmeta_en);
1435 if (priv->config.dv_flow_en &&
1436 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1437 mlx5_flow_ext_mreg_supported(eth_dev) &&
1438 priv->sh->dv_regc0_mask) {
1439 priv->mreg_cp_tbl = mlx5_hlist_create(MLX5_FLOW_MREG_HNAME,
1440 MLX5_FLOW_MREG_HTABLE_SZ);
1441 if (!priv->mreg_cp_tbl) {
1449 if (priv->mreg_cp_tbl)
1450 mlx5_hlist_destroy(priv->mreg_cp_tbl, NULL, NULL);
1452 mlx5_os_free_shared_dr(priv);
1453 if (priv->nl_socket_route >= 0)
1454 close(priv->nl_socket_route);
1455 if (priv->nl_socket_rdma >= 0)
1456 close(priv->nl_socket_rdma);
1457 if (priv->vmwa_context)
1458 mlx5_vlan_vmwa_exit(priv->vmwa_context);
1459 if (priv->qrss_id_pool)
1460 mlx5_flow_id_pool_release(priv->qrss_id_pool);
1462 claim_zero(rte_eth_switch_domain_free(priv->domain_id));
1464 if (eth_dev != NULL)
1465 eth_dev->data->dev_private = NULL;
1467 if (eth_dev != NULL) {
1468 /* mac_addrs must not be freed alone because part of
1471 eth_dev->data->mac_addrs = NULL;
1472 rte_eth_dev_release_port(eth_dev);
1475 mlx5_free_shared_dev_ctx(sh);
1476 MLX5_ASSERT(err > 0);
1482 * Comparison callback to sort device data.
1484 * This is meant to be used with qsort().
1487 * Pointer to pointer to first data object.
1489 * Pointer to pointer to second data object.
1492 * 0 if both objects are equal, less than 0 if the first argument is less
1493 * than the second, greater than 0 otherwise.
1496 mlx5_dev_spawn_data_cmp(const void *a, const void *b)
1498 const struct mlx5_switch_info *si_a =
1499 &((const struct mlx5_dev_spawn_data *)a)->info;
1500 const struct mlx5_switch_info *si_b =
1501 &((const struct mlx5_dev_spawn_data *)b)->info;
1504 /* Master device first. */
1505 ret = si_b->master - si_a->master;
1508 /* Then representor devices. */
1509 ret = si_b->representor - si_a->representor;
1512 /* Unidentified devices come last in no specific order. */
1513 if (!si_a->representor)
1515 /* Order representors by name. */
1516 return si_a->port_name - si_b->port_name;
1520 * Match PCI information for possible slaves of bonding device.
1522 * @param[in] ibv_dev
1523 * Pointer to Infiniband device structure.
1524 * @param[in] pci_dev
1525 * Pointer to PCI device structure to match PCI address.
1526 * @param[in] nl_rdma
1527 * Netlink RDMA group socket handle.
1530 * negative value if no bonding device found, otherwise
1531 * positive index of slave PF in bonding.
1534 mlx5_device_bond_pci_match(const struct ibv_device *ibv_dev,
1535 const struct rte_pci_device *pci_dev,
1538 char ifname[IF_NAMESIZE + 1];
1539 unsigned int ifindex;
1545 * Try to get master device name. If something goes
1546 * wrong suppose the lack of kernel support and no
1551 if (!strstr(ibv_dev->name, "bond"))
1553 np = mlx5_nl_portnum(nl_rdma, ibv_dev->name);
1557 * The Master device might not be on the predefined
1558 * port (not on port index 1, it is not garanted),
1559 * we have to scan all Infiniband device port and
1562 for (i = 1; i <= np; ++i) {
1563 /* Check whether Infiniband port is populated. */
1564 ifindex = mlx5_nl_ifindex(nl_rdma, ibv_dev->name, i);
1567 if (!if_indextoname(ifindex, ifname))
1569 /* Try to read bonding slave names from sysfs. */
1571 "/sys/class/net/%s/master/bonding/slaves", ifname);
1572 file = fopen(slaves, "r");
1578 /* Use safe format to check maximal buffer length. */
1579 MLX5_ASSERT(atol(RTE_STR(IF_NAMESIZE)) == IF_NAMESIZE);
1580 while (fscanf(file, "%" RTE_STR(IF_NAMESIZE) "s", ifname) == 1) {
1581 char tmp_str[IF_NAMESIZE + 32];
1582 struct rte_pci_addr pci_addr;
1583 struct mlx5_switch_info info;
1585 /* Process slave interface names in the loop. */
1586 snprintf(tmp_str, sizeof(tmp_str),
1587 "/sys/class/net/%s", ifname);
1588 if (mlx5_dev_to_pci_addr(tmp_str, &pci_addr)) {
1589 DRV_LOG(WARNING, "can not get PCI address"
1590 " for netdev \"%s\"", ifname);
1593 if (pci_dev->addr.domain != pci_addr.domain ||
1594 pci_dev->addr.bus != pci_addr.bus ||
1595 pci_dev->addr.devid != pci_addr.devid ||
1596 pci_dev->addr.function != pci_addr.function)
1598 /* Slave interface PCI address match found. */
1600 snprintf(tmp_str, sizeof(tmp_str),
1601 "/sys/class/net/%s/phys_port_name", ifname);
1602 file = fopen(tmp_str, "rb");
1605 info.name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET;
1606 if (fscanf(file, "%32s", tmp_str) == 1)
1607 mlx5_translate_port_name(tmp_str, &info);
1608 if (info.name_type == MLX5_PHYS_PORT_NAME_TYPE_LEGACY ||
1609 info.name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK)
1610 pf = info.port_name;
1619 * DPDK callback to register a PCI device.
1621 * This function spawns Ethernet devices out of a given PCI device.
1623 * @param[in] pci_drv
1624 * PCI driver structure (mlx5_driver).
1625 * @param[in] pci_dev
1626 * PCI device information.
1629 * 0 on success, a negative errno value otherwise and rte_errno is set.
1632 mlx5_os_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
1633 struct rte_pci_device *pci_dev)
1635 struct ibv_device **ibv_list;
1637 * Number of found IB Devices matching with requested PCI BDF.
1638 * nd != 1 means there are multiple IB devices over the same
1639 * PCI device and we have representors and master.
1641 unsigned int nd = 0;
1643 * Number of found IB device Ports. nd = 1 and np = 1..n means
1644 * we have the single multiport IB device, and there may be
1645 * representors attached to some of found ports.
1647 unsigned int np = 0;
1649 * Number of DPDK ethernet devices to Spawn - either over
1650 * multiple IB devices or multiple ports of single IB device.
1651 * Actually this is the number of iterations to spawn.
1653 unsigned int ns = 0;
1656 * < 0 - no bonding device (single one)
1657 * >= 0 - bonding device (value is slave PF index)
1660 struct mlx5_dev_spawn_data *list = NULL;
1661 struct mlx5_dev_config dev_config;
1662 unsigned int dev_config_vf;
1665 if (rte_eal_process_type() == RTE_PROC_PRIMARY)
1666 mlx5_pmd_socket_init();
1667 ret = mlx5_init_once();
1669 DRV_LOG(ERR, "unable to init PMD global data: %s",
1670 strerror(rte_errno));
1674 ibv_list = mlx5_glue->get_device_list(&ret);
1676 rte_errno = errno ? errno : ENOSYS;
1677 DRV_LOG(ERR, "cannot list devices, is ib_uverbs loaded?");
1681 * First scan the list of all Infiniband devices to find
1682 * matching ones, gathering into the list.
1684 struct ibv_device *ibv_match[ret + 1];
1685 int nl_route = mlx5_nl_init(NETLINK_ROUTE);
1686 int nl_rdma = mlx5_nl_init(NETLINK_RDMA);
1690 struct rte_pci_addr pci_addr;
1692 DRV_LOG(DEBUG, "checking device \"%s\"", ibv_list[ret]->name);
1693 bd = mlx5_device_bond_pci_match
1694 (ibv_list[ret], pci_dev, nl_rdma);
1697 * Bonding device detected. Only one match is allowed,
1698 * the bonding is supported over multi-port IB device,
1699 * there should be no matches on representor PCI
1700 * functions or non VF LAG bonding devices with
1701 * specified address.
1705 "multiple PCI match on bonding device"
1706 "\"%s\" found", ibv_list[ret]->name);
1711 DRV_LOG(INFO, "PCI information matches for"
1712 " slave %d bonding device \"%s\"",
1713 bd, ibv_list[ret]->name);
1714 ibv_match[nd++] = ibv_list[ret];
1717 if (mlx5_dev_to_pci_addr
1718 (ibv_list[ret]->ibdev_path, &pci_addr))
1720 if (pci_dev->addr.domain != pci_addr.domain ||
1721 pci_dev->addr.bus != pci_addr.bus ||
1722 pci_dev->addr.devid != pci_addr.devid ||
1723 pci_dev->addr.function != pci_addr.function)
1725 DRV_LOG(INFO, "PCI information matches for device \"%s\"",
1726 ibv_list[ret]->name);
1727 ibv_match[nd++] = ibv_list[ret];
1729 ibv_match[nd] = NULL;
1731 /* No device matches, just complain and bail out. */
1733 "no Verbs device matches PCI device " PCI_PRI_FMT ","
1734 " are kernel drivers loaded?",
1735 pci_dev->addr.domain, pci_dev->addr.bus,
1736 pci_dev->addr.devid, pci_dev->addr.function);
1743 * Found single matching device may have multiple ports.
1744 * Each port may be representor, we have to check the port
1745 * number and check the representors existence.
1748 np = mlx5_nl_portnum(nl_rdma, ibv_match[0]->name);
1750 DRV_LOG(WARNING, "can not get IB device \"%s\""
1751 " ports number", ibv_match[0]->name);
1752 if (bd >= 0 && !np) {
1753 DRV_LOG(ERR, "can not get ports"
1754 " for bonding device");
1760 #ifndef HAVE_MLX5DV_DR_DEVX_PORT
1763 * This may happen if there is VF LAG kernel support and
1764 * application is compiled with older rdma_core library.
1767 "No kernel/verbs support for VF LAG bonding found.");
1768 rte_errno = ENOTSUP;
1774 * Now we can determine the maximal
1775 * amount of devices to be spawned.
1777 list = mlx5_malloc(MLX5_MEM_ZERO,
1778 sizeof(struct mlx5_dev_spawn_data) *
1780 RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
1782 DRV_LOG(ERR, "spawn data array allocation failure");
1787 if (bd >= 0 || np > 1) {
1789 * Single IB device with multiple ports found,
1790 * it may be E-Switch master device and representors.
1791 * We have to perform identification through the ports.
1793 MLX5_ASSERT(nl_rdma >= 0);
1794 MLX5_ASSERT(ns == 0);
1795 MLX5_ASSERT(nd == 1);
1797 for (i = 1; i <= np; ++i) {
1798 list[ns].max_port = np;
1799 list[ns].phys_port = i;
1800 list[ns].phys_dev = ibv_match[0];
1801 list[ns].eth_dev = NULL;
1802 list[ns].pci_dev = pci_dev;
1803 list[ns].pf_bond = bd;
1804 list[ns].ifindex = mlx5_nl_ifindex
1806 mlx5_os_get_dev_device_name
1807 (list[ns].phys_dev), i);
1808 if (!list[ns].ifindex) {
1810 * No network interface index found for the
1811 * specified port, it means there is no
1812 * representor on this port. It's OK,
1813 * there can be disabled ports, for example
1814 * if sriov_numvfs < sriov_totalvfs.
1820 ret = mlx5_nl_switch_info
1824 if (ret || (!list[ns].info.representor &&
1825 !list[ns].info.master)) {
1827 * We failed to recognize representors with
1828 * Netlink, let's try to perform the task
1831 ret = mlx5_sysfs_switch_info
1835 if (!ret && bd >= 0) {
1836 switch (list[ns].info.name_type) {
1837 case MLX5_PHYS_PORT_NAME_TYPE_UPLINK:
1838 if (list[ns].info.port_name == bd)
1841 case MLX5_PHYS_PORT_NAME_TYPE_PFHPF:
1843 case MLX5_PHYS_PORT_NAME_TYPE_PFVF:
1844 if (list[ns].info.pf_num == bd)
1852 if (!ret && (list[ns].info.representor ^
1853 list[ns].info.master))
1858 "unable to recognize master/representors"
1859 " on the IB device with multiple ports");
1866 * The existence of several matching entries (nd > 1) means
1867 * port representors have been instantiated. No existing Verbs
1868 * call nor sysfs entries can tell them apart, this can only
1869 * be done through Netlink calls assuming kernel drivers are
1870 * recent enough to support them.
1872 * In the event of identification failure through Netlink,
1873 * try again through sysfs, then:
1875 * 1. A single IB device matches (nd == 1) with single
1876 * port (np=0/1) and is not a representor, assume
1877 * no switch support.
1879 * 2. Otherwise no safe assumptions can be made;
1880 * complain louder and bail out.
1882 for (i = 0; i != nd; ++i) {
1883 memset(&list[ns].info, 0, sizeof(list[ns].info));
1884 list[ns].max_port = 1;
1885 list[ns].phys_port = 1;
1886 list[ns].phys_dev = ibv_match[i];
1887 list[ns].eth_dev = NULL;
1888 list[ns].pci_dev = pci_dev;
1889 list[ns].pf_bond = -1;
1890 list[ns].ifindex = 0;
1892 list[ns].ifindex = mlx5_nl_ifindex
1894 mlx5_os_get_dev_device_name
1895 (list[ns].phys_dev), 1);
1896 if (!list[ns].ifindex) {
1897 char ifname[IF_NAMESIZE];
1900 * Netlink failed, it may happen with old
1901 * ib_core kernel driver (before 4.16).
1902 * We can assume there is old driver because
1903 * here we are processing single ports IB
1904 * devices. Let's try sysfs to retrieve
1905 * the ifindex. The method works for
1906 * master device only.
1910 * Multiple devices found, assume
1911 * representors, can not distinguish
1912 * master/representor and retrieve
1913 * ifindex via sysfs.
1917 ret = mlx5_get_ifname_sysfs
1918 (ibv_match[i]->ibdev_path, ifname);
1921 if_nametoindex(ifname);
1922 if (!list[ns].ifindex) {
1924 * No network interface index found
1925 * for the specified device, it means
1926 * there it is neither representor
1934 ret = mlx5_nl_switch_info
1938 if (ret || (!list[ns].info.representor &&
1939 !list[ns].info.master)) {
1941 * We failed to recognize representors with
1942 * Netlink, let's try to perform the task
1945 ret = mlx5_sysfs_switch_info
1949 if (!ret && (list[ns].info.representor ^
1950 list[ns].info.master)) {
1952 } else if ((nd == 1) &&
1953 !list[ns].info.representor &&
1954 !list[ns].info.master) {
1956 * Single IB device with
1957 * one physical port and
1958 * attached network device.
1959 * May be SRIOV is not enabled
1960 * or there is no representors.
1962 DRV_LOG(INFO, "no E-Switch support detected");
1969 "unable to recognize master/representors"
1970 " on the multiple IB devices");
1978 * Sort list to probe devices in natural order for users convenience
1979 * (i.e. master first, then representors from lowest to highest ID).
1981 qsort(list, ns, sizeof(*list), mlx5_dev_spawn_data_cmp);
1982 /* Device specific configuration. */
1983 switch (pci_dev->id.device_id) {
1984 case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
1985 case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
1986 case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF:
1987 case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF:
1988 case PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF:
1989 case PCI_DEVICE_ID_MELLANOX_CONNECTX6VF:
1990 case PCI_DEVICE_ID_MELLANOX_CONNECTX6DXVF:
1997 for (i = 0; i != ns; ++i) {
2000 /* Default configuration. */
2001 memset(&dev_config, 0, sizeof(struct mlx5_dev_config));
2002 dev_config.vf = dev_config_vf;
2003 dev_config.mps = MLX5_ARG_UNSET;
2004 dev_config.dbnc = MLX5_ARG_UNSET;
2005 dev_config.rx_vec_en = 1;
2006 dev_config.txq_inline_max = MLX5_ARG_UNSET;
2007 dev_config.txq_inline_min = MLX5_ARG_UNSET;
2008 dev_config.txq_inline_mpw = MLX5_ARG_UNSET;
2009 dev_config.txqs_inline = MLX5_ARG_UNSET;
2010 dev_config.vf_nl_en = 1;
2011 dev_config.mr_ext_memseg_en = 1;
2012 dev_config.mprq.max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN;
2013 dev_config.mprq.min_rxqs_num = MLX5_MPRQ_MIN_RXQS;
2014 dev_config.dv_esw_en = 1;
2015 dev_config.dv_flow_en = 1;
2016 dev_config.decap_en = 1;
2017 dev_config.log_hp_size = MLX5_ARG_UNSET;
2018 list[i].eth_dev = mlx5_dev_spawn(&pci_dev->device,
2021 if (!list[i].eth_dev) {
2022 if (rte_errno != EBUSY && rte_errno != EEXIST)
2024 /* Device is disabled or already spawned. Ignore it. */
2027 restore = list[i].eth_dev->data->dev_flags;
2028 rte_eth_copy_pci_info(list[i].eth_dev, pci_dev);
2029 /* Restore non-PCI flags cleared by the above call. */
2030 list[i].eth_dev->data->dev_flags |= restore;
2031 rte_eth_dev_probing_finish(list[i].eth_dev);
2035 "probe of PCI device " PCI_PRI_FMT " aborted after"
2036 " encountering an error: %s",
2037 pci_dev->addr.domain, pci_dev->addr.bus,
2038 pci_dev->addr.devid, pci_dev->addr.function,
2039 strerror(rte_errno));
2043 if (!list[i].eth_dev)
2045 mlx5_dev_close(list[i].eth_dev);
2046 /* mac_addrs must not be freed because in dev_private */
2047 list[i].eth_dev->data->mac_addrs = NULL;
2048 claim_zero(rte_eth_dev_release_port(list[i].eth_dev));
2050 /* Restore original error. */
2057 * Do the routine cleanup:
2058 * - close opened Netlink sockets
2059 * - free allocated spawn data array
2060 * - free the Infiniband device list
2068 MLX5_ASSERT(ibv_list);
2069 mlx5_glue->free_device_list(ibv_list);
2074 mlx5_config_doorbell_mapping_env(const struct mlx5_dev_config *config)
2079 MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
2080 /* Get environment variable to store. */
2081 env = getenv(MLX5_SHUT_UP_BF);
2082 value = env ? !!strcmp(env, "0") : MLX5_ARG_UNSET;
2083 if (config->dbnc == MLX5_ARG_UNSET)
2084 setenv(MLX5_SHUT_UP_BF, MLX5_SHUT_UP_BF_DEFAULT, 1);
2086 setenv(MLX5_SHUT_UP_BF,
2087 config->dbnc == MLX5_TXDB_NCACHED ? "1" : "0", 1);
2092 mlx5_restore_doorbell_mapping_env(int value)
2094 MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
2095 /* Restore the original environment variable state. */
2096 if (value == MLX5_ARG_UNSET)
2097 unsetenv(MLX5_SHUT_UP_BF);
2099 setenv(MLX5_SHUT_UP_BF, value ? "1" : "0", 1);
2103 * Extract pdn of PD object using DV API.
2106 * Pointer to the verbs PD object.
2108 * Pointer to the PD object number variable.
2111 * 0 on success, error value otherwise.
2114 mlx5_os_get_pdn(void *pd, uint32_t *pdn)
2116 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
2117 struct mlx5dv_obj obj;
2118 struct mlx5dv_pd pd_info;
2122 obj.pd.out = &pd_info;
2123 ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_PD);
2125 DRV_LOG(DEBUG, "Fail to get PD object info");
2134 #endif /* HAVE_IBV_FLOW_DV_SUPPORT */
2138 * Function API to open IB device.
2140 * This function calls the Linux glue APIs to open a device.
2143 * Pointer to the IB device attributes (name, port, etc).
2144 * @param[out] config
2145 * Pointer to device configuration structure.
2147 * Pointer to shared context structure.
2150 * 0 on success, a positive error value otherwise.
2153 mlx5_os_open_device(const struct mlx5_dev_spawn_data *spawn,
2154 const struct mlx5_dev_config *config,
2155 struct mlx5_dev_ctx_shared *sh)
2160 sh->numa_node = spawn->pci_dev->device.numa_node;
2161 pthread_mutex_init(&sh->txpp.mutex, NULL);
2163 * Configure environment variable "MLX5_BF_SHUT_UP"
2164 * before the device creation. The rdma_core library
2165 * checks the variable at device creation and
2166 * stores the result internally.
2168 dbmap_env = mlx5_config_doorbell_mapping_env(config);
2169 /* Try to open IB device with DV first, then usual Verbs. */
2171 sh->ctx = mlx5_glue->dv_open_device(spawn->phys_dev);
2174 DRV_LOG(DEBUG, "DevX is supported");
2175 /* The device is created, no need for environment. */
2176 mlx5_restore_doorbell_mapping_env(dbmap_env);
2178 /* The environment variable is still configured. */
2179 sh->ctx = mlx5_glue->open_device(spawn->phys_dev);
2180 err = errno ? errno : ENODEV;
2182 * The environment variable is not needed anymore,
2183 * all device creation attempts are completed.
2185 mlx5_restore_doorbell_mapping_env(dbmap_env);
2188 DRV_LOG(DEBUG, "DevX is NOT supported");
2195 * Install shared asynchronous device events handler.
2196 * This function is implemented to support event sharing
2197 * between multiple ports of single IB device.
2200 * Pointer to mlx5_dev_ctx_shared object.
2203 mlx5_os_dev_shared_handler_install(struct mlx5_dev_ctx_shared *sh)
2208 sh->intr_handle.fd = -1;
2209 flags = fcntl(((struct ibv_context *)sh->ctx)->async_fd, F_GETFL);
2210 ret = fcntl(((struct ibv_context *)sh->ctx)->async_fd,
2211 F_SETFL, flags | O_NONBLOCK);
2213 DRV_LOG(INFO, "failed to change file descriptor async event"
2216 sh->intr_handle.fd = ((struct ibv_context *)sh->ctx)->async_fd;
2217 sh->intr_handle.type = RTE_INTR_HANDLE_EXT;
2218 if (rte_intr_callback_register(&sh->intr_handle,
2219 mlx5_dev_interrupt_handler, sh)) {
2220 DRV_LOG(INFO, "Fail to install the shared interrupt.");
2221 sh->intr_handle.fd = -1;
2225 #ifdef HAVE_IBV_DEVX_ASYNC
2226 sh->intr_handle_devx.fd = -1;
2228 (void *)mlx5_glue->devx_create_cmd_comp(sh->ctx);
2229 struct mlx5dv_devx_cmd_comp *devx_comp = sh->devx_comp;
2231 DRV_LOG(INFO, "failed to allocate devx_comp.");
2234 flags = fcntl(devx_comp->fd, F_GETFL);
2235 ret = fcntl(devx_comp->fd, F_SETFL, flags | O_NONBLOCK);
2237 DRV_LOG(INFO, "failed to change file descriptor"
2241 sh->intr_handle_devx.fd = devx_comp->fd;
2242 sh->intr_handle_devx.type = RTE_INTR_HANDLE_EXT;
2243 if (rte_intr_callback_register(&sh->intr_handle_devx,
2244 mlx5_dev_interrupt_handler_devx, sh)) {
2245 DRV_LOG(INFO, "Fail to install the devx shared"
2247 sh->intr_handle_devx.fd = -1;
2249 #endif /* HAVE_IBV_DEVX_ASYNC */
2254 * Uninstall shared asynchronous device events handler.
2255 * This function is implemented to support event sharing
2256 * between multiple ports of single IB device.
2259 * Pointer to mlx5_dev_ctx_shared object.
2262 mlx5_os_dev_shared_handler_uninstall(struct mlx5_dev_ctx_shared *sh)
2264 if (sh->intr_handle.fd >= 0)
2265 mlx5_intr_callback_unregister(&sh->intr_handle,
2266 mlx5_dev_interrupt_handler, sh);
2267 #ifdef HAVE_IBV_DEVX_ASYNC
2268 if (sh->intr_handle_devx.fd >= 0)
2269 rte_intr_callback_unregister(&sh->intr_handle_devx,
2270 mlx5_dev_interrupt_handler_devx, sh);
2272 mlx5_glue->devx_destroy_cmd_comp(sh->devx_comp);
2277 * Read statistics by a named counter.
2280 * Pointer to the private device data structure.
2281 * @param[in] ctr_name
2282 * Pointer to the name of the statistic counter to read
2284 * Pointer to read statistic value.
2286 * 0 on success and stat is valud, 1 if failed to read the value
2291 mlx5_os_read_dev_stat(struct mlx5_priv *priv, const char *ctr_name,
2297 MKSTR(path, "%s/ports/%d/hw_counters/%s",
2298 priv->sh->ibdev_path,
2301 fd = open(path, O_RDONLY);
2303 * in switchdev the file location is not per port
2304 * but rather in <ibdev_path>/hw_counters/<file_name>.
2307 MKSTR(path1, "%s/hw_counters/%s",
2308 priv->sh->ibdev_path,
2310 fd = open(path1, O_RDONLY);
2313 char buf[21] = {'\0'};
2314 ssize_t n = read(fd, buf, sizeof(buf));
2318 *stat = strtoull(buf, NULL, 10);
2328 * Set the reg_mr and dereg_mr call backs
2330 * @param reg_mr_cb[out]
2331 * Pointer to reg_mr func
2332 * @param dereg_mr_cb[out]
2333 * Pointer to dereg_mr func
2337 mlx5_os_set_reg_mr_cb(mlx5_reg_mr_t *reg_mr_cb,
2338 mlx5_dereg_mr_t *dereg_mr_cb)
2340 *reg_mr_cb = mlx5_verbs_ops.reg_mr;
2341 *dereg_mr_cb = mlx5_verbs_ops.dereg_mr;
2345 * Remove a MAC address from device
2348 * Pointer to Ethernet device structure.
2350 * MAC address index.
2353 mlx5_os_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
2355 struct mlx5_priv *priv = dev->data->dev_private;
2356 const int vf = priv->config.vf;
2359 mlx5_nl_mac_addr_remove(priv->nl_socket_route,
2360 mlx5_ifindex(dev), priv->mac_own,
2361 &dev->data->mac_addrs[index], index);
2365 * Adds a MAC address to the device
2368 * Pointer to Ethernet device structure.
2370 * MAC address to register.
2372 * MAC address index.
2375 * 0 on success, a negative errno value otherwise
2378 mlx5_os_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac,
2381 struct mlx5_priv *priv = dev->data->dev_private;
2382 const int vf = priv->config.vf;
2386 ret = mlx5_nl_mac_addr_add(priv->nl_socket_route,
2387 mlx5_ifindex(dev), priv->mac_own,
2393 * Modify a VF MAC address
2396 * Pointer to device private data.
2398 * MAC address to modify into.
2400 * Net device interface index
2405 * 0 on success, a negative errno value otherwise
2408 mlx5_os_vf_mac_addr_modify(struct mlx5_priv *priv,
2409 unsigned int iface_idx,
2410 struct rte_ether_addr *mac_addr,
2413 return mlx5_nl_vf_mac_addr_modify
2414 (priv->nl_socket_route, iface_idx, mac_addr, vf_index);
2418 * Set device promiscuous mode
2421 * Pointer to Ethernet device structure.
2423 * 0 - promiscuous is disabled, otherwise - enabled
2426 * 0 on success, a negative error value otherwise
2429 mlx5_os_set_promisc(struct rte_eth_dev *dev, int enable)
2431 struct mlx5_priv *priv = dev->data->dev_private;
2433 return mlx5_nl_promisc(priv->nl_socket_route,
2434 mlx5_ifindex(dev), !!enable);
2438 * Set device promiscuous mode
2441 * Pointer to Ethernet device structure.
2443 * 0 - all multicase is disabled, otherwise - enabled
2446 * 0 on success, a negative error value otherwise
2449 mlx5_os_set_allmulti(struct rte_eth_dev *dev, int enable)
2451 struct mlx5_priv *priv = dev->data->dev_private;
2453 return mlx5_nl_allmulti(priv->nl_socket_route,
2454 mlx5_ifindex(dev), !!enable);
2458 * Flush device MAC addresses
2461 * Pointer to Ethernet device structure.
2465 mlx5_os_mac_addr_flush(struct rte_eth_dev *dev)
2467 struct mlx5_priv *priv = dev->data->dev_private;
2469 mlx5_nl_mac_addr_flush(priv->nl_socket_route, mlx5_ifindex(dev),
2470 dev->data->mac_addrs,
2471 MLX5_MAX_MAC_ADDRESSES, priv->mac_own);
2474 const struct eth_dev_ops mlx5_os_dev_ops = {
2475 .dev_configure = mlx5_dev_configure,
2476 .dev_start = mlx5_dev_start,
2477 .dev_stop = mlx5_dev_stop,
2478 .dev_set_link_down = mlx5_set_link_down,
2479 .dev_set_link_up = mlx5_set_link_up,
2480 .dev_close = mlx5_dev_close,
2481 .promiscuous_enable = mlx5_promiscuous_enable,
2482 .promiscuous_disable = mlx5_promiscuous_disable,
2483 .allmulticast_enable = mlx5_allmulticast_enable,
2484 .allmulticast_disable = mlx5_allmulticast_disable,
2485 .link_update = mlx5_link_update,
2486 .stats_get = mlx5_stats_get,
2487 .stats_reset = mlx5_stats_reset,
2488 .xstats_get = mlx5_xstats_get,
2489 .xstats_reset = mlx5_xstats_reset,
2490 .xstats_get_names = mlx5_xstats_get_names,
2491 .fw_version_get = mlx5_fw_version_get,
2492 .dev_infos_get = mlx5_dev_infos_get,
2493 .read_clock = mlx5_txpp_read_clock,
2494 .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
2495 .vlan_filter_set = mlx5_vlan_filter_set,
2496 .rx_queue_setup = mlx5_rx_queue_setup,
2497 .rx_hairpin_queue_setup = mlx5_rx_hairpin_queue_setup,
2498 .tx_queue_setup = mlx5_tx_queue_setup,
2499 .tx_hairpin_queue_setup = mlx5_tx_hairpin_queue_setup,
2500 .rx_queue_release = mlx5_rx_queue_release,
2501 .tx_queue_release = mlx5_tx_queue_release,
2502 .rx_queue_start = mlx5_rx_queue_start,
2503 .rx_queue_stop = mlx5_rx_queue_stop,
2504 .tx_queue_start = mlx5_tx_queue_start,
2505 .tx_queue_stop = mlx5_tx_queue_stop,
2506 .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
2507 .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
2508 .mac_addr_remove = mlx5_mac_addr_remove,
2509 .mac_addr_add = mlx5_mac_addr_add,
2510 .mac_addr_set = mlx5_mac_addr_set,
2511 .set_mc_addr_list = mlx5_set_mc_addr_list,
2512 .mtu_set = mlx5_dev_set_mtu,
2513 .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
2514 .vlan_offload_set = mlx5_vlan_offload_set,
2515 .reta_update = mlx5_dev_rss_reta_update,
2516 .reta_query = mlx5_dev_rss_reta_query,
2517 .rss_hash_update = mlx5_rss_hash_update,
2518 .rss_hash_conf_get = mlx5_rss_hash_conf_get,
2519 .filter_ctrl = mlx5_dev_filter_ctrl,
2520 .rxq_info_get = mlx5_rxq_info_get,
2521 .txq_info_get = mlx5_txq_info_get,
2522 .rx_burst_mode_get = mlx5_rx_burst_mode_get,
2523 .tx_burst_mode_get = mlx5_tx_burst_mode_get,
2524 .rx_queue_intr_enable = mlx5_rx_intr_enable,
2525 .rx_queue_intr_disable = mlx5_rx_intr_disable,
2526 .is_removed = mlx5_is_removed,
2527 .udp_tunnel_port_add = mlx5_udp_tunnel_port_add,
2528 .get_module_info = mlx5_get_module_info,
2529 .get_module_eeprom = mlx5_get_module_eeprom,
2530 .hairpin_cap_get = mlx5_hairpin_cap_get,
2531 .mtr_ops_get = mlx5_flow_meter_ops_get,
2534 /* Available operations from secondary process. */
2535 const struct eth_dev_ops mlx5_os_dev_sec_ops = {
2536 .stats_get = mlx5_stats_get,
2537 .stats_reset = mlx5_stats_reset,
2538 .xstats_get = mlx5_xstats_get,
2539 .xstats_reset = mlx5_xstats_reset,
2540 .xstats_get_names = mlx5_xstats_get_names,
2541 .fw_version_get = mlx5_fw_version_get,
2542 .dev_infos_get = mlx5_dev_infos_get,
2543 .read_clock = mlx5_txpp_read_clock,
2544 .rx_queue_start = mlx5_rx_queue_start,
2545 .rx_queue_stop = mlx5_rx_queue_stop,
2546 .tx_queue_start = mlx5_tx_queue_start,
2547 .tx_queue_stop = mlx5_tx_queue_stop,
2548 .rxq_info_get = mlx5_rxq_info_get,
2549 .txq_info_get = mlx5_txq_info_get,
2550 .rx_burst_mode_get = mlx5_rx_burst_mode_get,
2551 .tx_burst_mode_get = mlx5_tx_burst_mode_get,
2552 .get_module_info = mlx5_get_module_info,
2553 .get_module_eeprom = mlx5_get_module_eeprom,
2556 /* Available operations in flow isolated mode. */
2557 const struct eth_dev_ops mlx5_os_dev_ops_isolate = {
2558 .dev_configure = mlx5_dev_configure,
2559 .dev_start = mlx5_dev_start,
2560 .dev_stop = mlx5_dev_stop,
2561 .dev_set_link_down = mlx5_set_link_down,
2562 .dev_set_link_up = mlx5_set_link_up,
2563 .dev_close = mlx5_dev_close,
2564 .promiscuous_enable = mlx5_promiscuous_enable,
2565 .promiscuous_disable = mlx5_promiscuous_disable,
2566 .allmulticast_enable = mlx5_allmulticast_enable,
2567 .allmulticast_disable = mlx5_allmulticast_disable,
2568 .link_update = mlx5_link_update,
2569 .stats_get = mlx5_stats_get,
2570 .stats_reset = mlx5_stats_reset,
2571 .xstats_get = mlx5_xstats_get,
2572 .xstats_reset = mlx5_xstats_reset,
2573 .xstats_get_names = mlx5_xstats_get_names,
2574 .fw_version_get = mlx5_fw_version_get,
2575 .dev_infos_get = mlx5_dev_infos_get,
2576 .read_clock = mlx5_txpp_read_clock,
2577 .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
2578 .vlan_filter_set = mlx5_vlan_filter_set,
2579 .rx_queue_setup = mlx5_rx_queue_setup,
2580 .rx_hairpin_queue_setup = mlx5_rx_hairpin_queue_setup,
2581 .tx_queue_setup = mlx5_tx_queue_setup,
2582 .tx_hairpin_queue_setup = mlx5_tx_hairpin_queue_setup,
2583 .rx_queue_release = mlx5_rx_queue_release,
2584 .tx_queue_release = mlx5_tx_queue_release,
2585 .rx_queue_start = mlx5_rx_queue_start,
2586 .rx_queue_stop = mlx5_rx_queue_stop,
2587 .tx_queue_start = mlx5_tx_queue_start,
2588 .tx_queue_stop = mlx5_tx_queue_stop,
2589 .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
2590 .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
2591 .mac_addr_remove = mlx5_mac_addr_remove,
2592 .mac_addr_add = mlx5_mac_addr_add,
2593 .mac_addr_set = mlx5_mac_addr_set,
2594 .set_mc_addr_list = mlx5_set_mc_addr_list,
2595 .mtu_set = mlx5_dev_set_mtu,
2596 .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
2597 .vlan_offload_set = mlx5_vlan_offload_set,
2598 .filter_ctrl = mlx5_dev_filter_ctrl,
2599 .rxq_info_get = mlx5_rxq_info_get,
2600 .txq_info_get = mlx5_txq_info_get,
2601 .rx_burst_mode_get = mlx5_rx_burst_mode_get,
2602 .tx_burst_mode_get = mlx5_tx_burst_mode_get,
2603 .rx_queue_intr_enable = mlx5_rx_intr_enable,
2604 .rx_queue_intr_disable = mlx5_rx_intr_disable,
2605 .is_removed = mlx5_is_removed,
2606 .get_module_info = mlx5_get_module_info,
2607 .get_module_eeprom = mlx5_get_module_eeprom,
2608 .hairpin_cap_get = mlx5_hairpin_cap_get,
2609 .mtr_ops_get = mlx5_flow_meter_ops_get,