From 2eb4d0107acc2515e0ee1eceb49cf45e6d49fe76 Mon Sep 17 00:00:00 2001 From: Ophir Munk Date: Wed, 3 Jun 2020 15:06:00 +0000 Subject: [PATCH] net/mlx5: refactor PCI probing on Linux Refactor PCI probing related code. Move Linux specific functions (as well as verbs and dv related code) from mlx5.c file to linux/mlx5_os.c file. Signed-off-by: Ophir Munk Acked-by: Matan Azrad --- drivers/net/mlx5/linux/mlx5_os.c | 1794 +++++++++++++++++++++++++++++ drivers/net/mlx5/mlx5.c | 1837 +----------------------------- drivers/net/mlx5/mlx5.h | 42 +- 3 files changed, 1864 insertions(+), 1809 deletions(-) diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c index 7d60683a76..2ecb1a56e3 100644 --- a/drivers/net/mlx5/linux/mlx5_os.c +++ b/drivers/net/mlx5/linux/mlx5_os.c @@ -39,6 +39,7 @@ #include #include #include +#include #include "mlx5_defs.h" #include "mlx5.h" @@ -49,6 +50,17 @@ #include "mlx5_flow.h" #include "rte_pmd_mlx5.h" +#define MLX5_TAGS_HLIST_ARRAY_SIZE 8192 + +#ifndef HAVE_IBV_MLX5_MOD_MPW +#define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2) +#define MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW (1 << 3) +#endif + +#ifndef HAVE_IBV_MLX5_MOD_CQE_128B_COMP +#define MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP (1 << 4) +#endif + /** * Get ibv device name. Given an ibv_context pointer - return a * pointer to the corresponding device name. @@ -166,3 +178,1785 @@ mlx5_os_get_dev_attr(void *ctx, struct mlx5_dev_attr *device_attr) return err; } + +/** + * Verbs callback to allocate a memory. This function should allocate the space + * according to the size provided residing inside a huge page. + * Please note that all allocation must respect the alignment from libmlx5 + * (i.e. currently sysconf(_SC_PAGESIZE)). + * + * @param[in] size + * The size in bytes of the memory to allocate. + * @param[in] data + * A pointer to the callback data. + * + * @return + * Allocated buffer, NULL otherwise and rte_errno is set. + */ +static void * +mlx5_alloc_verbs_buf(size_t size, void *data) +{ + struct mlx5_priv *priv = data; + void *ret; + size_t alignment = sysconf(_SC_PAGESIZE); + unsigned int socket = SOCKET_ID_ANY; + + if (priv->verbs_alloc_ctx.type == MLX5_VERBS_ALLOC_TYPE_TX_QUEUE) { + const struct mlx5_txq_ctrl *ctrl = priv->verbs_alloc_ctx.obj; + + socket = ctrl->socket; + } else if (priv->verbs_alloc_ctx.type == + MLX5_VERBS_ALLOC_TYPE_RX_QUEUE) { + const struct mlx5_rxq_ctrl *ctrl = priv->verbs_alloc_ctx.obj; + + socket = ctrl->socket; + } + MLX5_ASSERT(data != NULL); + ret = rte_malloc_socket(__func__, size, alignment, socket); + if (!ret && size) + rte_errno = ENOMEM; + return ret; +} + +/** + * Verbs callback to free a memory. + * + * @param[in] ptr + * A pointer to the memory to free. + * @param[in] data + * A pointer to the callback data. + */ +static void +mlx5_free_verbs_buf(void *ptr, void *data __rte_unused) +{ + MLX5_ASSERT(data != NULL); + rte_free(ptr); +} + +/** + * Initialize DR related data within private structure. + * Routine checks the reference counter and does actual + * resources creation/initialization only if counter is zero. + * + * @param[in] priv + * Pointer to the private device data structure. + * + * @return + * Zero on success, positive error code otherwise. + */ +static int +mlx5_alloc_shared_dr(struct mlx5_priv *priv) +{ + struct mlx5_dev_ctx_shared *sh = priv->sh; + char s[MLX5_HLIST_NAMESIZE]; + int err = 0; + + if (!sh->flow_tbls) + err = mlx5_alloc_table_hash_list(priv); + else + DRV_LOG(DEBUG, "sh->flow_tbls[%p] already created, reuse\n", + (void *)sh->flow_tbls); + if (err) + return err; + /* Create tags hash list table. */ + snprintf(s, sizeof(s), "%s_tags", sh->ibdev_name); + sh->tag_table = mlx5_hlist_create(s, MLX5_TAGS_HLIST_ARRAY_SIZE); + if (!sh->tag_table) { + DRV_LOG(ERR, "tags with hash creation failed.\n"); + err = ENOMEM; + goto error; + } +#ifdef HAVE_MLX5DV_DR + void *domain; + + if (sh->dv_refcnt) { + /* Shared DV/DR structures is already initialized. */ + sh->dv_refcnt++; + priv->dr_shared = 1; + return 0; + } + /* Reference counter is zero, we should initialize structures. */ + domain = mlx5_glue->dr_create_domain(sh->ctx, + MLX5DV_DR_DOMAIN_TYPE_NIC_RX); + if (!domain) { + DRV_LOG(ERR, "ingress mlx5dv_dr_create_domain failed"); + err = errno; + goto error; + } + sh->rx_domain = domain; + domain = mlx5_glue->dr_create_domain(sh->ctx, + MLX5DV_DR_DOMAIN_TYPE_NIC_TX); + if (!domain) { + DRV_LOG(ERR, "egress mlx5dv_dr_create_domain failed"); + err = errno; + goto error; + } + pthread_mutex_init(&sh->dv_mutex, NULL); + sh->tx_domain = domain; +#ifdef HAVE_MLX5DV_DR_ESWITCH + if (priv->config.dv_esw_en) { + domain = mlx5_glue->dr_create_domain + (sh->ctx, MLX5DV_DR_DOMAIN_TYPE_FDB); + if (!domain) { + DRV_LOG(ERR, "FDB mlx5dv_dr_create_domain failed"); + err = errno; + goto error; + } + sh->fdb_domain = domain; + sh->esw_drop_action = mlx5_glue->dr_create_flow_action_drop(); + } +#endif + if (priv->config.reclaim_mode == MLX5_RCM_AGGR) { + mlx5_glue->dr_reclaim_domain_memory(sh->rx_domain, 1); + mlx5_glue->dr_reclaim_domain_memory(sh->tx_domain, 1); + if (sh->fdb_domain) + mlx5_glue->dr_reclaim_domain_memory(sh->fdb_domain, 1); + } + sh->pop_vlan_action = mlx5_glue->dr_create_flow_action_pop_vlan(); +#endif /* HAVE_MLX5DV_DR */ + sh->dv_refcnt++; + priv->dr_shared = 1; + return 0; +error: + /* Rollback the created objects. */ + if (sh->rx_domain) { + mlx5_glue->dr_destroy_domain(sh->rx_domain); + sh->rx_domain = NULL; + } + if (sh->tx_domain) { + mlx5_glue->dr_destroy_domain(sh->tx_domain); + sh->tx_domain = NULL; + } + if (sh->fdb_domain) { + mlx5_glue->dr_destroy_domain(sh->fdb_domain); + sh->fdb_domain = NULL; + } + if (sh->esw_drop_action) { + mlx5_glue->destroy_flow_action(sh->esw_drop_action); + sh->esw_drop_action = NULL; + } + if (sh->pop_vlan_action) { + mlx5_glue->destroy_flow_action(sh->pop_vlan_action); + sh->pop_vlan_action = NULL; + } + if (sh->tag_table) { + /* tags should be destroyed with flow before. */ + mlx5_hlist_destroy(sh->tag_table, NULL, NULL); + sh->tag_table = NULL; + } + mlx5_free_table_hash_list(priv); + return err; +} + +/** + * Destroy DR related data within private structure. + * + * @param[in] priv + * Pointer to the private device data structure. + */ +void +mlx5_os_free_shared_dr(struct mlx5_priv *priv) +{ + struct mlx5_dev_ctx_shared *sh; + + if (!priv->dr_shared) + return; + priv->dr_shared = 0; + sh = priv->sh; + MLX5_ASSERT(sh); +#ifdef HAVE_MLX5DV_DR + MLX5_ASSERT(sh->dv_refcnt); + if (sh->dv_refcnt && --sh->dv_refcnt) + return; + if (sh->rx_domain) { + mlx5_glue->dr_destroy_domain(sh->rx_domain); + sh->rx_domain = NULL; + } + if (sh->tx_domain) { + mlx5_glue->dr_destroy_domain(sh->tx_domain); + sh->tx_domain = NULL; + } +#ifdef HAVE_MLX5DV_DR_ESWITCH + if (sh->fdb_domain) { + mlx5_glue->dr_destroy_domain(sh->fdb_domain); + sh->fdb_domain = NULL; + } + if (sh->esw_drop_action) { + mlx5_glue->destroy_flow_action(sh->esw_drop_action); + sh->esw_drop_action = NULL; + } +#endif + if (sh->pop_vlan_action) { + mlx5_glue->destroy_flow_action(sh->pop_vlan_action); + sh->pop_vlan_action = NULL; + } + pthread_mutex_destroy(&sh->dv_mutex); +#endif /* HAVE_MLX5DV_DR */ + if (sh->tag_table) { + /* tags should be destroyed with flow before. */ + mlx5_hlist_destroy(sh->tag_table, NULL, NULL); + sh->tag_table = NULL; + } + mlx5_free_table_hash_list(priv); +} + +/** + * Spawn an Ethernet device from Verbs information. + * + * @param dpdk_dev + * Backing DPDK device. + * @param spawn + * Verbs device parameters (name, port, switch_info) to spawn. + * @param config + * Device configuration parameters. + * + * @return + * A valid Ethernet device object on success, NULL otherwise and rte_errno + * is set. The following errors are defined: + * + * EBUSY: device is not supposed to be spawned. + * EEXIST: device is already spawned + */ +static struct rte_eth_dev * +mlx5_dev_spawn(struct rte_device *dpdk_dev, + struct mlx5_dev_spawn_data *spawn, + struct mlx5_dev_config config) +{ + const struct mlx5_switch_info *switch_info = &spawn->info; + struct mlx5_dev_ctx_shared *sh = NULL; + struct ibv_port_attr port_attr; + struct mlx5dv_context dv_attr = { .comp_mask = 0 }; + struct rte_eth_dev *eth_dev = NULL; + struct mlx5_priv *priv = NULL; + int err = 0; + unsigned int hw_padding = 0; + unsigned int mps; + unsigned int cqe_comp; + unsigned int cqe_pad = 0; + unsigned int tunnel_en = 0; + unsigned int mpls_en = 0; + unsigned int swp = 0; + unsigned int mprq = 0; + unsigned int mprq_min_stride_size_n = 0; + unsigned int mprq_max_stride_size_n = 0; + unsigned int mprq_min_stride_num_n = 0; + unsigned int mprq_max_stride_num_n = 0; + struct rte_ether_addr mac; + char name[RTE_ETH_NAME_MAX_LEN]; + int own_domain_id = 0; + uint16_t port_id; + unsigned int i; +#ifdef HAVE_MLX5DV_DR_DEVX_PORT + struct mlx5dv_devx_port devx_port = { .comp_mask = 0 }; +#endif + + /* Determine if this port representor is supposed to be spawned. */ + if (switch_info->representor && dpdk_dev->devargs) { + struct rte_eth_devargs eth_da; + + err = rte_eth_devargs_parse(dpdk_dev->devargs->args, ð_da); + if (err) { + rte_errno = -err; + DRV_LOG(ERR, "failed to process device arguments: %s", + strerror(rte_errno)); + return NULL; + } + for (i = 0; i < eth_da.nb_representor_ports; ++i) + if (eth_da.representor_ports[i] == + (uint16_t)switch_info->port_name) + break; + if (i == eth_da.nb_representor_ports) { + rte_errno = EBUSY; + return NULL; + } + } + /* Build device name. */ + if (spawn->pf_bond < 0) { + /* Single device. */ + if (!switch_info->representor) + strlcpy(name, dpdk_dev->name, sizeof(name)); + else + snprintf(name, sizeof(name), "%s_representor_%u", + dpdk_dev->name, switch_info->port_name); + } else { + /* Bonding device. */ + if (!switch_info->representor) + snprintf(name, sizeof(name), "%s_%s", + dpdk_dev->name, spawn->ibv_dev->name); + else + snprintf(name, sizeof(name), "%s_%s_representor_%u", + dpdk_dev->name, spawn->ibv_dev->name, + switch_info->port_name); + } + /* check if the device is already spawned */ + if (rte_eth_dev_get_port_by_name(name, &port_id) == 0) { + rte_errno = EEXIST; + return NULL; + } + DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name); + if (rte_eal_process_type() == RTE_PROC_SECONDARY) { + struct mlx5_mp_id mp_id; + + eth_dev = rte_eth_dev_attach_secondary(name); + if (eth_dev == NULL) { + DRV_LOG(ERR, "can not attach rte ethdev"); + rte_errno = ENOMEM; + return NULL; + } + eth_dev->device = dpdk_dev; + eth_dev->dev_ops = &mlx5_dev_sec_ops; + err = mlx5_proc_priv_init(eth_dev); + if (err) + return NULL; + mp_id.port_id = eth_dev->data->port_id; + strlcpy(mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN); + /* Receive command fd from primary process */ + err = mlx5_mp_req_verbs_cmd_fd(&mp_id); + if (err < 0) + goto err_secondary; + /* Remap UAR for Tx queues. */ + err = mlx5_tx_uar_init_secondary(eth_dev, err); + if (err) + goto err_secondary; + /* + * Ethdev pointer is still required as input since + * the primary device is not accessible from the + * secondary process. + */ + eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev); + eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev); + return eth_dev; +err_secondary: + mlx5_dev_close(eth_dev); + return NULL; + } + /* + * Some parameters ("tx_db_nc" in particularly) are needed in + * advance to create dv/verbs device context. We proceed the + * devargs here to get ones, and later proceed devargs again + * to override some hardware settings. + */ + err = mlx5_args(&config, dpdk_dev->devargs); + if (err) { + err = rte_errno; + DRV_LOG(ERR, "failed to process device arguments: %s", + strerror(rte_errno)); + goto error; + } + sh = mlx5_alloc_shared_ibctx(spawn, &config); + if (!sh) + return NULL; + config.devx = sh->devx; +#ifdef HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR + config.dest_tir = 1; +#endif +#ifdef HAVE_IBV_MLX5_MOD_SWP + dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP; +#endif + /* + * Multi-packet send is supported by ConnectX-4 Lx PF as well + * as all ConnectX-5 devices. + */ +#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT + dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS; +#endif +#ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT + dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ; +#endif + mlx5_glue->dv_query_device(sh->ctx, &dv_attr); + if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) { + if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) { + DRV_LOG(DEBUG, "enhanced MPW is supported"); + mps = MLX5_MPW_ENHANCED; + } else { + DRV_LOG(DEBUG, "MPW is supported"); + mps = MLX5_MPW; + } + } else { + DRV_LOG(DEBUG, "MPW isn't supported"); + mps = MLX5_MPW_DISABLED; + } +#ifdef HAVE_IBV_MLX5_MOD_SWP + if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_SWP) + swp = dv_attr.sw_parsing_caps.sw_parsing_offloads; + DRV_LOG(DEBUG, "SWP support: %u", swp); +#endif + config.swp = !!swp; +#ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT + if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) { + struct mlx5dv_striding_rq_caps mprq_caps = + dv_attr.striding_rq_caps; + + DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %d", + mprq_caps.min_single_stride_log_num_of_bytes); + DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %d", + mprq_caps.max_single_stride_log_num_of_bytes); + DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %d", + mprq_caps.min_single_wqe_log_num_of_strides); + DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %d", + mprq_caps.max_single_wqe_log_num_of_strides); + DRV_LOG(DEBUG, "\tsupported_qpts: %d", + mprq_caps.supported_qpts); + DRV_LOG(DEBUG, "device supports Multi-Packet RQ"); + mprq = 1; + mprq_min_stride_size_n = + mprq_caps.min_single_stride_log_num_of_bytes; + mprq_max_stride_size_n = + mprq_caps.max_single_stride_log_num_of_bytes; + mprq_min_stride_num_n = + mprq_caps.min_single_wqe_log_num_of_strides; + mprq_max_stride_num_n = + mprq_caps.max_single_wqe_log_num_of_strides; + } +#endif + if (RTE_CACHE_LINE_SIZE == 128 && + !(dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP)) + cqe_comp = 0; + else + cqe_comp = 1; + config.cqe_comp = cqe_comp; +#ifdef HAVE_IBV_MLX5_MOD_CQE_128B_PAD + /* Whether device supports 128B Rx CQE padding. */ + cqe_pad = RTE_CACHE_LINE_SIZE == 128 && + (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_PAD); +#endif +#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT + if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) { + tunnel_en = ((dv_attr.tunnel_offloads_caps & + MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_VXLAN) && + (dv_attr.tunnel_offloads_caps & + MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GRE) && + (dv_attr.tunnel_offloads_caps & + MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GENEVE)); + } + DRV_LOG(DEBUG, "tunnel offloading is %ssupported", + tunnel_en ? "" : "not "); +#else + DRV_LOG(WARNING, + "tunnel offloading disabled due to old OFED/rdma-core version"); +#endif + config.tunnel_en = tunnel_en; +#ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT + mpls_en = ((dv_attr.tunnel_offloads_caps & + MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_GRE) && + (dv_attr.tunnel_offloads_caps & + MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_UDP)); + DRV_LOG(DEBUG, "MPLS over GRE/UDP tunnel offloading is %ssupported", + mpls_en ? "" : "not "); +#else + DRV_LOG(WARNING, "MPLS over GRE/UDP tunnel offloading disabled due to" + " old OFED/rdma-core version or firmware configuration"); +#endif + config.mpls_en = mpls_en; + /* Check port status. */ + err = mlx5_glue->query_port(sh->ctx, spawn->ibv_port, &port_attr); + if (err) { + DRV_LOG(ERR, "port query failed: %s", strerror(err)); + goto error; + } + if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) { + DRV_LOG(ERR, "port is not configured in Ethernet mode"); + err = EINVAL; + goto error; + } + if (port_attr.state != IBV_PORT_ACTIVE) + DRV_LOG(DEBUG, "port is not active: \"%s\" (%d)", + mlx5_glue->port_state_str(port_attr.state), + port_attr.state); + /* Allocate private eth device data. */ + priv = rte_zmalloc("ethdev private structure", + sizeof(*priv), + RTE_CACHE_LINE_SIZE); + if (priv == NULL) { + DRV_LOG(ERR, "priv allocation failure"); + err = ENOMEM; + goto error; + } + priv->sh = sh; + priv->ibv_port = spawn->ibv_port; + priv->pci_dev = spawn->pci_dev; + priv->mtu = RTE_ETHER_MTU; + priv->mp_id.port_id = port_id; + strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN); +#ifndef RTE_ARCH_64 + /* Initialize UAR access locks for 32bit implementations. */ + rte_spinlock_init(&priv->uar_lock_cq); + for (i = 0; i < MLX5_UAR_PAGE_NUM_MAX; i++) + rte_spinlock_init(&priv->uar_lock[i]); +#endif + /* Some internal functions rely on Netlink sockets, open them now. */ + priv->nl_socket_rdma = mlx5_nl_init(NETLINK_RDMA); + priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE); + priv->representor = !!switch_info->representor; + priv->master = !!switch_info->master; + priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID; + priv->vport_meta_tag = 0; + priv->vport_meta_mask = 0; + priv->pf_bond = spawn->pf_bond; +#ifdef HAVE_MLX5DV_DR_DEVX_PORT + /* + * The DevX port query API is implemented. E-Switch may use + * either vport or reg_c[0] metadata register to match on + * vport index. The engaged part of metadata register is + * defined by mask. + */ + if (switch_info->representor || switch_info->master) { + devx_port.comp_mask = MLX5DV_DEVX_PORT_VPORT | + MLX5DV_DEVX_PORT_MATCH_REG_C_0; + err = mlx5_glue->devx_port_query(sh->ctx, spawn->ibv_port, + &devx_port); + if (err) { + DRV_LOG(WARNING, + "can't query devx port %d on device %s", + spawn->ibv_port, spawn->ibv_dev->name); + devx_port.comp_mask = 0; + } + } + if (devx_port.comp_mask & MLX5DV_DEVX_PORT_MATCH_REG_C_0) { + priv->vport_meta_tag = devx_port.reg_c_0.value; + priv->vport_meta_mask = devx_port.reg_c_0.mask; + if (!priv->vport_meta_mask) { + DRV_LOG(ERR, "vport zero mask for port %d" + " on bonding device %s", + spawn->ibv_port, spawn->ibv_dev->name); + err = ENOTSUP; + goto error; + } + if (priv->vport_meta_tag & ~priv->vport_meta_mask) { + DRV_LOG(ERR, "invalid vport tag for port %d" + " on bonding device %s", + spawn->ibv_port, spawn->ibv_dev->name); + err = ENOTSUP; + goto error; + } + } + if (devx_port.comp_mask & MLX5DV_DEVX_PORT_VPORT) { + priv->vport_id = devx_port.vport_num; + } else if (spawn->pf_bond >= 0) { + DRV_LOG(ERR, "can't deduce vport index for port %d" + " on bonding device %s", + spawn->ibv_port, spawn->ibv_dev->name); + err = ENOTSUP; + goto error; + } else { + /* Suppose vport index in compatible way. */ + priv->vport_id = switch_info->representor ? + switch_info->port_name + 1 : -1; + } +#else + /* + * Kernel/rdma_core support single E-Switch per PF configurations + * only and vport_id field contains the vport index for + * associated VF, which is deduced from representor port name. + * For example, let's have the IB device port 10, it has + * attached network device eth0, which has port name attribute + * pf0vf2, we can deduce the VF number as 2, and set vport index + * as 3 (2+1). This assigning schema should be changed if the + * multiple E-Switch instances per PF configurations or/and PCI + * subfunctions are added. + */ + priv->vport_id = switch_info->representor ? + switch_info->port_name + 1 : -1; +#endif + /* representor_id field keeps the unmodified VF index. */ + priv->representor_id = switch_info->representor ? + switch_info->port_name : -1; + /* + * Look for sibling devices in order to reuse their switch domain + * if any, otherwise allocate one. + */ + MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) { + const struct mlx5_priv *opriv = + rte_eth_devices[port_id].data->dev_private; + + if (!opriv || + opriv->sh != priv->sh || + opriv->domain_id == + RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) + continue; + priv->domain_id = opriv->domain_id; + break; + } + if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) { + err = rte_eth_switch_domain_alloc(&priv->domain_id); + if (err) { + err = rte_errno; + DRV_LOG(ERR, "unable to allocate switch domain: %s", + strerror(rte_errno)); + goto error; + } + own_domain_id = 1; + } + /* Override some values set by hardware configuration. */ + mlx5_args(&config, dpdk_dev->devargs); + err = mlx5_dev_check_sibling_config(priv, &config); + if (err) + goto error; + config.hw_csum = !!(sh->device_attr.device_cap_flags_ex & + IBV_DEVICE_RAW_IP_CSUM); + DRV_LOG(DEBUG, "checksum offloading is %ssupported", + (config.hw_csum ? "" : "not ")); +#if !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) && \ + !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45) + DRV_LOG(DEBUG, "counters are not supported"); +#endif +#if !defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_MLX5DV_DR) + if (config.dv_flow_en) { + DRV_LOG(WARNING, "DV flow is not supported"); + config.dv_flow_en = 0; + } +#endif + config.ind_table_max_size = + sh->device_attr.max_rwq_indirection_table_size; + /* + * Remove this check once DPDK supports larger/variable + * indirection tables. + */ + if (config.ind_table_max_size > (unsigned int)ETH_RSS_RETA_SIZE_512) + config.ind_table_max_size = ETH_RSS_RETA_SIZE_512; + DRV_LOG(DEBUG, "maximum Rx indirection table size is %u", + config.ind_table_max_size); + config.hw_vlan_strip = !!(sh->device_attr.raw_packet_caps & + IBV_RAW_PACKET_CAP_CVLAN_STRIPPING); + DRV_LOG(DEBUG, "VLAN stripping is %ssupported", + (config.hw_vlan_strip ? "" : "not ")); + config.hw_fcs_strip = !!(sh->device_attr.raw_packet_caps & + IBV_RAW_PACKET_CAP_SCATTER_FCS); + DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported", + (config.hw_fcs_strip ? "" : "not ")); +#if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING) + hw_padding = !!sh->device_attr.rx_pad_end_addr_align; +#elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING) + hw_padding = !!(sh->device_attr.device_cap_flags_ex & + IBV_DEVICE_PCI_WRITE_END_PADDING); +#endif + if (config.hw_padding && !hw_padding) { + DRV_LOG(DEBUG, "Rx end alignment padding isn't supported"); + config.hw_padding = 0; + } else if (config.hw_padding) { + DRV_LOG(DEBUG, "Rx end alignment padding is enabled"); + } + config.tso = (sh->device_attr.max_tso > 0 && + (sh->device_attr.tso_supported_qpts & + (1 << IBV_QPT_RAW_PACKET))); + if (config.tso) + config.tso_max_payload_sz = sh->device_attr.max_tso; + /* + * MPW is disabled by default, while the Enhanced MPW is enabled + * by default. + */ + if (config.mps == MLX5_ARG_UNSET) + config.mps = (mps == MLX5_MPW_ENHANCED) ? MLX5_MPW_ENHANCED : + MLX5_MPW_DISABLED; + else + config.mps = config.mps ? mps : MLX5_MPW_DISABLED; + DRV_LOG(INFO, "%sMPS is %s", + config.mps == MLX5_MPW_ENHANCED ? "enhanced " : + config.mps == MLX5_MPW ? "legacy " : "", + config.mps != MLX5_MPW_DISABLED ? "enabled" : "disabled"); + if (config.cqe_comp && !cqe_comp) { + DRV_LOG(WARNING, "Rx CQE compression isn't supported"); + config.cqe_comp = 0; + } + if (config.cqe_pad && !cqe_pad) { + DRV_LOG(WARNING, "Rx CQE padding isn't supported"); + config.cqe_pad = 0; + } else if (config.cqe_pad) { + DRV_LOG(INFO, "Rx CQE padding is enabled"); + } + if (config.devx) { + priv->counter_fallback = 0; + err = mlx5_devx_cmd_query_hca_attr(sh->ctx, &config.hca_attr); + if (err) { + err = -err; + goto error; + } + if (!config.hca_attr.flow_counters_dump) + priv->counter_fallback = 1; +#ifndef HAVE_IBV_DEVX_ASYNC + priv->counter_fallback = 1; +#endif + if (priv->counter_fallback) + DRV_LOG(INFO, "Use fall-back DV counter management"); + /* Check for LRO support. */ + if (config.dest_tir && config.hca_attr.lro_cap && + config.dv_flow_en) { + /* TBD check tunnel lro caps. */ + config.lro.supported = config.hca_attr.lro_cap; + DRV_LOG(DEBUG, "Device supports LRO"); + /* + * If LRO timeout is not configured by application, + * use the minimal supported value. + */ + if (!config.lro.timeout) + config.lro.timeout = + config.hca_attr.lro_timer_supported_periods[0]; + DRV_LOG(DEBUG, "LRO session timeout set to %d usec", + config.lro.timeout); + } +#if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER) + if (config.hca_attr.qos.sup && config.hca_attr.qos.srtcm_sup && + config.dv_flow_en) { + uint8_t reg_c_mask = + config.hca_attr.qos.flow_meter_reg_c_ids; + /* + * Meter needs two REG_C's for color match and pre-sfx + * flow match. Here get the REG_C for color match. + * REG_C_0 and REG_C_1 is reserved for metadata feature. + */ + reg_c_mask &= 0xfc; + if (__builtin_popcount(reg_c_mask) < 1) { + priv->mtr_en = 0; + DRV_LOG(WARNING, "No available register for" + " meter."); + } else { + priv->mtr_color_reg = ffs(reg_c_mask) - 1 + + REG_C_0; + priv->mtr_en = 1; + priv->mtr_reg_share = + config.hca_attr.qos.flow_meter_reg_share; + DRV_LOG(DEBUG, "The REG_C meter uses is %d", + priv->mtr_color_reg); + } + } +#endif + } + if (config.mprq.enabled && mprq) { + if (config.mprq.stride_num_n && + (config.mprq.stride_num_n > mprq_max_stride_num_n || + config.mprq.stride_num_n < mprq_min_stride_num_n)) { + config.mprq.stride_num_n = + RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N, + mprq_min_stride_num_n), + mprq_max_stride_num_n); + DRV_LOG(WARNING, + "the number of strides" + " for Multi-Packet RQ is out of range," + " setting default value (%u)", + 1 << config.mprq.stride_num_n); + } + if (config.mprq.stride_size_n && + (config.mprq.stride_size_n > mprq_max_stride_size_n || + config.mprq.stride_size_n < mprq_min_stride_size_n)) { + config.mprq.stride_size_n = + RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_SIZE_N, + mprq_min_stride_size_n), + mprq_max_stride_size_n); + DRV_LOG(WARNING, + "the size of a stride" + " for Multi-Packet RQ is out of range," + " setting default value (%u)", + 1 << config.mprq.stride_size_n); + } + config.mprq.min_stride_size_n = mprq_min_stride_size_n; + config.mprq.max_stride_size_n = mprq_max_stride_size_n; + } else if (config.mprq.enabled && !mprq) { + DRV_LOG(WARNING, "Multi-Packet RQ isn't supported"); + config.mprq.enabled = 0; + } + if (config.max_dump_files_num == 0) + config.max_dump_files_num = 128; + eth_dev = rte_eth_dev_allocate(name); + if (eth_dev == NULL) { + DRV_LOG(ERR, "can not allocate rte ethdev"); + err = ENOMEM; + goto error; + } + /* Flag to call rte_eth_dev_release_port() in rte_eth_dev_close(). */ + eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE; + if (priv->representor) { + eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR; + eth_dev->data->representor_id = priv->representor_id; + } + /* + * Store associated network device interface index. This index + * is permanent throughout the lifetime of device. So, we may store + * the ifindex here and use the cached value further. + */ + MLX5_ASSERT(spawn->ifindex); + priv->if_index = spawn->ifindex; + eth_dev->data->dev_private = priv; + priv->dev_data = eth_dev->data; + eth_dev->data->mac_addrs = priv->mac; + eth_dev->device = dpdk_dev; + /* Configure the first MAC address by default. */ + if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) { + DRV_LOG(ERR, + "port %u cannot get MAC address, is mlx5_en" + " loaded? (errno: %s)", + eth_dev->data->port_id, strerror(rte_errno)); + err = ENODEV; + goto error; + } + DRV_LOG(INFO, + "port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x", + eth_dev->data->port_id, + mac.addr_bytes[0], mac.addr_bytes[1], + mac.addr_bytes[2], mac.addr_bytes[3], + mac.addr_bytes[4], mac.addr_bytes[5]); +#ifdef RTE_LIBRTE_MLX5_DEBUG + { + char ifname[IF_NAMESIZE]; + + if (mlx5_get_ifname(eth_dev, &ifname) == 0) + DRV_LOG(DEBUG, "port %u ifname is \"%s\"", + eth_dev->data->port_id, ifname); + else + DRV_LOG(DEBUG, "port %u ifname is unknown", + eth_dev->data->port_id); + } +#endif + /* Get actual MTU if possible. */ + err = mlx5_get_mtu(eth_dev, &priv->mtu); + if (err) { + err = rte_errno; + goto error; + } + DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id, + priv->mtu); + /* Initialize burst functions to prevent crashes before link-up. */ + eth_dev->rx_pkt_burst = removed_rx_burst; + eth_dev->tx_pkt_burst = removed_tx_burst; + eth_dev->dev_ops = &mlx5_dev_ops; + /* Register MAC address. */ + claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0)); + if (config.vf && config.vf_nl_en) + mlx5_nl_mac_addr_sync(priv->nl_socket_route, + mlx5_ifindex(eth_dev), + eth_dev->data->mac_addrs, + MLX5_MAX_MAC_ADDRESSES); + priv->flows = 0; + priv->ctrl_flows = 0; + TAILQ_INIT(&priv->flow_meters); + TAILQ_INIT(&priv->flow_meter_profiles); + /* Hint libmlx5 to use PMD allocator for data plane resources */ + struct mlx5dv_ctx_allocators alctr = { + .alloc = &mlx5_alloc_verbs_buf, + .free = &mlx5_free_verbs_buf, + .data = priv, + }; + mlx5_glue->dv_set_context_attr(sh->ctx, + MLX5DV_CTX_ATTR_BUF_ALLOCATORS, + (void *)((uintptr_t)&alctr)); + /* Bring Ethernet device up. */ + DRV_LOG(DEBUG, "port %u forcing Ethernet interface up", + eth_dev->data->port_id); + mlx5_set_link_up(eth_dev); + /* + * Even though the interrupt handler is not installed yet, + * interrupts will still trigger on the async_fd from + * Verbs context returned by ibv_open_device(). + */ + mlx5_link_update(eth_dev, 0); +#ifdef HAVE_MLX5DV_DR_ESWITCH + if (!(config.hca_attr.eswitch_manager && config.dv_flow_en && + (switch_info->representor || switch_info->master))) + config.dv_esw_en = 0; +#else + config.dv_esw_en = 0; +#endif + /* Detect minimal data bytes to inline. */ + mlx5_set_min_inline(spawn, &config); + /* Store device configuration on private structure. */ + priv->config = config; + /* Create context for virtual machine VLAN workaround. */ + priv->vmwa_context = mlx5_vlan_vmwa_init(eth_dev, spawn->ifindex); + if (config.dv_flow_en) { + err = mlx5_alloc_shared_dr(priv); + if (err) + goto error; + /* + * RSS id is shared with meter flow id. Meter flow id can only + * use the 24 MSB of the register. + */ + priv->qrss_id_pool = mlx5_flow_id_pool_alloc(UINT32_MAX >> + MLX5_MTR_COLOR_BITS); + if (!priv->qrss_id_pool) { + DRV_LOG(ERR, "can't create flow id pool"); + err = ENOMEM; + goto error; + } + } + /* Supported Verbs flow priority number detection. */ + err = mlx5_flow_discover_priorities(eth_dev); + if (err < 0) { + err = -err; + goto error; + } + priv->config.flow_prio = err; + if (!priv->config.dv_esw_en && + priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) { + DRV_LOG(WARNING, "metadata mode %u is not supported " + "(no E-Switch)", priv->config.dv_xmeta_en); + priv->config.dv_xmeta_en = MLX5_XMETA_MODE_LEGACY; + } + mlx5_set_metadata_mask(eth_dev); + if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY && + !priv->sh->dv_regc0_mask) { + DRV_LOG(ERR, "metadata mode %u is not supported " + "(no metadata reg_c[0] is available)", + priv->config.dv_xmeta_en); + err = ENOTSUP; + goto error; + } + /* + * Allocate the buffer for flow creating, just once. + * The allocation must be done before any flow creating. + */ + mlx5_flow_alloc_intermediate(eth_dev); + /* Query availability of metadata reg_c's. */ + err = mlx5_flow_discover_mreg_c(eth_dev); + if (err < 0) { + err = -err; + goto error; + } + if (!mlx5_flow_ext_mreg_supported(eth_dev)) { + DRV_LOG(DEBUG, + "port %u extensive metadata register is not supported", + eth_dev->data->port_id); + if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) { + DRV_LOG(ERR, "metadata mode %u is not supported " + "(no metadata registers available)", + priv->config.dv_xmeta_en); + err = ENOTSUP; + goto error; + } + } + if (priv->config.dv_flow_en && + priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY && + mlx5_flow_ext_mreg_supported(eth_dev) && + priv->sh->dv_regc0_mask) { + priv->mreg_cp_tbl = mlx5_hlist_create(MLX5_FLOW_MREG_HNAME, + MLX5_FLOW_MREG_HTABLE_SZ); + if (!priv->mreg_cp_tbl) { + err = ENOMEM; + goto error; + } + } + return eth_dev; +error: + if (priv) { + if (priv->mreg_cp_tbl) + mlx5_hlist_destroy(priv->mreg_cp_tbl, NULL, NULL); + if (priv->sh) + mlx5_os_free_shared_dr(priv); + if (priv->nl_socket_route >= 0) + close(priv->nl_socket_route); + if (priv->nl_socket_rdma >= 0) + close(priv->nl_socket_rdma); + if (priv->vmwa_context) + mlx5_vlan_vmwa_exit(priv->vmwa_context); + if (priv->qrss_id_pool) + mlx5_flow_id_pool_release(priv->qrss_id_pool); + if (own_domain_id) + claim_zero(rte_eth_switch_domain_free(priv->domain_id)); + rte_free(priv); + if (eth_dev != NULL) + eth_dev->data->dev_private = NULL; + } + if (eth_dev != NULL) { + /* mac_addrs must not be freed alone because part of + * dev_private + **/ + eth_dev->data->mac_addrs = NULL; + rte_eth_dev_release_port(eth_dev); + } + if (sh) + mlx5_free_shared_ibctx(sh); + MLX5_ASSERT(err > 0); + rte_errno = err; + return NULL; +} + +/** + * Comparison callback to sort device data. + * + * This is meant to be used with qsort(). + * + * @param a[in] + * Pointer to pointer to first data object. + * @param b[in] + * Pointer to pointer to second data object. + * + * @return + * 0 if both objects are equal, less than 0 if the first argument is less + * than the second, greater than 0 otherwise. + */ +static int +mlx5_dev_spawn_data_cmp(const void *a, const void *b) +{ + const struct mlx5_switch_info *si_a = + &((const struct mlx5_dev_spawn_data *)a)->info; + const struct mlx5_switch_info *si_b = + &((const struct mlx5_dev_spawn_data *)b)->info; + int ret; + + /* Master device first. */ + ret = si_b->master - si_a->master; + if (ret) + return ret; + /* Then representor devices. */ + ret = si_b->representor - si_a->representor; + if (ret) + return ret; + /* Unidentified devices come last in no specific order. */ + if (!si_a->representor) + return 0; + /* Order representors by name. */ + return si_a->port_name - si_b->port_name; +} + +/** + * Match PCI information for possible slaves of bonding device. + * + * @param[in] ibv_dev + * Pointer to Infiniband device structure. + * @param[in] pci_dev + * Pointer to PCI device structure to match PCI address. + * @param[in] nl_rdma + * Netlink RDMA group socket handle. + * + * @return + * negative value if no bonding device found, otherwise + * positive index of slave PF in bonding. + */ +static int +mlx5_device_bond_pci_match(const struct ibv_device *ibv_dev, + const struct rte_pci_device *pci_dev, + int nl_rdma) +{ + char ifname[IF_NAMESIZE + 1]; + unsigned int ifindex; + unsigned int np, i; + FILE *file = NULL; + int pf = -1; + + /* + * Try to get master device name. If something goes + * wrong suppose the lack of kernel support and no + * bonding devices. + */ + if (nl_rdma < 0) + return -1; + if (!strstr(ibv_dev->name, "bond")) + return -1; + np = mlx5_nl_portnum(nl_rdma, ibv_dev->name); + if (!np) + return -1; + /* + * The Master device might not be on the predefined + * port (not on port index 1, it is not garanted), + * we have to scan all Infiniband device port and + * find master. + */ + for (i = 1; i <= np; ++i) { + /* Check whether Infiniband port is populated. */ + ifindex = mlx5_nl_ifindex(nl_rdma, ibv_dev->name, i); + if (!ifindex) + continue; + if (!if_indextoname(ifindex, ifname)) + continue; + /* Try to read bonding slave names from sysfs. */ + MKSTR(slaves, + "/sys/class/net/%s/master/bonding/slaves", ifname); + file = fopen(slaves, "r"); + if (file) + break; + } + if (!file) + return -1; + /* Use safe format to check maximal buffer length. */ + MLX5_ASSERT(atol(RTE_STR(IF_NAMESIZE)) == IF_NAMESIZE); + while (fscanf(file, "%" RTE_STR(IF_NAMESIZE) "s", ifname) == 1) { + char tmp_str[IF_NAMESIZE + 32]; + struct rte_pci_addr pci_addr; + struct mlx5_switch_info info; + + /* Process slave interface names in the loop. */ + snprintf(tmp_str, sizeof(tmp_str), + "/sys/class/net/%s", ifname); + if (mlx5_dev_to_pci_addr(tmp_str, &pci_addr)) { + DRV_LOG(WARNING, "can not get PCI address" + " for netdev \"%s\"", ifname); + continue; + } + if (pci_dev->addr.domain != pci_addr.domain || + pci_dev->addr.bus != pci_addr.bus || + pci_dev->addr.devid != pci_addr.devid || + pci_dev->addr.function != pci_addr.function) + continue; + /* Slave interface PCI address match found. */ + fclose(file); + snprintf(tmp_str, sizeof(tmp_str), + "/sys/class/net/%s/phys_port_name", ifname); + file = fopen(tmp_str, "rb"); + if (!file) + break; + info.name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET; + if (fscanf(file, "%32s", tmp_str) == 1) + mlx5_translate_port_name(tmp_str, &info); + if (info.name_type == MLX5_PHYS_PORT_NAME_TYPE_LEGACY || + info.name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK) + pf = info.port_name; + break; + } + if (file) + fclose(file); + return pf; +} + +/** + * DPDK callback to register a PCI device. + * + * This function spawns Ethernet devices out of a given PCI device. + * + * @param[in] pci_drv + * PCI driver structure (mlx5_driver). + * @param[in] pci_dev + * PCI device information. + * + * @return + * 0 on success, a negative errno value otherwise and rte_errno is set. + */ +int +mlx5_os_pci_probe(struct rte_pci_driver *pci_drv __rte_unused, + struct rte_pci_device *pci_dev) +{ + struct ibv_device **ibv_list; + /* + * Number of found IB Devices matching with requested PCI BDF. + * nd != 1 means there are multiple IB devices over the same + * PCI device and we have representors and master. + */ + unsigned int nd = 0; + /* + * Number of found IB device Ports. nd = 1 and np = 1..n means + * we have the single multiport IB device, and there may be + * representors attached to some of found ports. + */ + unsigned int np = 0; + /* + * Number of DPDK ethernet devices to Spawn - either over + * multiple IB devices or multiple ports of single IB device. + * Actually this is the number of iterations to spawn. + */ + unsigned int ns = 0; + /* + * Bonding device + * < 0 - no bonding device (single one) + * >= 0 - bonding device (value is slave PF index) + */ + int bd = -1; + struct mlx5_dev_spawn_data *list = NULL; + struct mlx5_dev_config dev_config; + int ret; + + if (mlx5_class_get(pci_dev->device.devargs) != MLX5_CLASS_NET) { + DRV_LOG(DEBUG, "Skip probing - should be probed by other mlx5" + " driver."); + return 1; + } + if (rte_eal_process_type() == RTE_PROC_PRIMARY) + mlx5_pmd_socket_init(); + ret = mlx5_init_once(); + if (ret) { + DRV_LOG(ERR, "unable to init PMD global data: %s", + strerror(rte_errno)); + return -rte_errno; + } + MLX5_ASSERT(pci_drv == &mlx5_driver); + errno = 0; + ibv_list = mlx5_glue->get_device_list(&ret); + if (!ibv_list) { + rte_errno = errno ? errno : ENOSYS; + DRV_LOG(ERR, "cannot list devices, is ib_uverbs loaded?"); + return -rte_errno; + } + /* + * First scan the list of all Infiniband devices to find + * matching ones, gathering into the list. + */ + struct ibv_device *ibv_match[ret + 1]; + int nl_route = mlx5_nl_init(NETLINK_ROUTE); + int nl_rdma = mlx5_nl_init(NETLINK_RDMA); + unsigned int i; + + while (ret-- > 0) { + struct rte_pci_addr pci_addr; + + DRV_LOG(DEBUG, "checking device \"%s\"", ibv_list[ret]->name); + bd = mlx5_device_bond_pci_match + (ibv_list[ret], pci_dev, nl_rdma); + if (bd >= 0) { + /* + * Bonding device detected. Only one match is allowed, + * the bonding is supported over multi-port IB device, + * there should be no matches on representor PCI + * functions or non VF LAG bonding devices with + * specified address. + */ + if (nd) { + DRV_LOG(ERR, + "multiple PCI match on bonding device" + "\"%s\" found", ibv_list[ret]->name); + rte_errno = ENOENT; + ret = -rte_errno; + goto exit; + } + DRV_LOG(INFO, "PCI information matches for" + " slave %d bonding device \"%s\"", + bd, ibv_list[ret]->name); + ibv_match[nd++] = ibv_list[ret]; + break; + } + if (mlx5_dev_to_pci_addr + (ibv_list[ret]->ibdev_path, &pci_addr)) + continue; + if (pci_dev->addr.domain != pci_addr.domain || + pci_dev->addr.bus != pci_addr.bus || + pci_dev->addr.devid != pci_addr.devid || + pci_dev->addr.function != pci_addr.function) + continue; + DRV_LOG(INFO, "PCI information matches for device \"%s\"", + ibv_list[ret]->name); + ibv_match[nd++] = ibv_list[ret]; + } + ibv_match[nd] = NULL; + if (!nd) { + /* No device matches, just complain and bail out. */ + DRV_LOG(WARNING, + "no Verbs device matches PCI device " PCI_PRI_FMT "," + " are kernel drivers loaded?", + pci_dev->addr.domain, pci_dev->addr.bus, + pci_dev->addr.devid, pci_dev->addr.function); + rte_errno = ENOENT; + ret = -rte_errno; + goto exit; + } + if (nd == 1) { + /* + * Found single matching device may have multiple ports. + * Each port may be representor, we have to check the port + * number and check the representors existence. + */ + if (nl_rdma >= 0) + np = mlx5_nl_portnum(nl_rdma, ibv_match[0]->name); + if (!np) + DRV_LOG(WARNING, "can not get IB device \"%s\"" + " ports number", ibv_match[0]->name); + if (bd >= 0 && !np) { + DRV_LOG(ERR, "can not get ports" + " for bonding device"); + rte_errno = ENOENT; + ret = -rte_errno; + goto exit; + } + } +#ifndef HAVE_MLX5DV_DR_DEVX_PORT + if (bd >= 0) { + /* + * This may happen if there is VF LAG kernel support and + * application is compiled with older rdma_core library. + */ + DRV_LOG(ERR, + "No kernel/verbs support for VF LAG bonding found."); + rte_errno = ENOTSUP; + ret = -rte_errno; + goto exit; + } +#endif + /* + * Now we can determine the maximal + * amount of devices to be spawned. + */ + list = rte_zmalloc("device spawn data", + sizeof(struct mlx5_dev_spawn_data) * + (np ? np : nd), + RTE_CACHE_LINE_SIZE); + if (!list) { + DRV_LOG(ERR, "spawn data array allocation failure"); + rte_errno = ENOMEM; + ret = -rte_errno; + goto exit; + } + if (bd >= 0 || np > 1) { + /* + * Single IB device with multiple ports found, + * it may be E-Switch master device and representors. + * We have to perform identification through the ports. + */ + MLX5_ASSERT(nl_rdma >= 0); + MLX5_ASSERT(ns == 0); + MLX5_ASSERT(nd == 1); + MLX5_ASSERT(np); + for (i = 1; i <= np; ++i) { + list[ns].max_port = np; + list[ns].ibv_port = i; + list[ns].ibv_dev = ibv_match[0]; + list[ns].eth_dev = NULL; + list[ns].pci_dev = pci_dev; + list[ns].pf_bond = bd; + list[ns].ifindex = mlx5_nl_ifindex + (nl_rdma, list[ns].ibv_dev->name, i); + if (!list[ns].ifindex) { + /* + * No network interface index found for the + * specified port, it means there is no + * representor on this port. It's OK, + * there can be disabled ports, for example + * if sriov_numvfs < sriov_totalvfs. + */ + continue; + } + ret = -1; + if (nl_route >= 0) + ret = mlx5_nl_switch_info + (nl_route, + list[ns].ifindex, + &list[ns].info); + if (ret || (!list[ns].info.representor && + !list[ns].info.master)) { + /* + * We failed to recognize representors with + * Netlink, let's try to perform the task + * with sysfs. + */ + ret = mlx5_sysfs_switch_info + (list[ns].ifindex, + &list[ns].info); + } + if (!ret && bd >= 0) { + switch (list[ns].info.name_type) { + case MLX5_PHYS_PORT_NAME_TYPE_UPLINK: + if (list[ns].info.port_name == bd) + ns++; + break; + case MLX5_PHYS_PORT_NAME_TYPE_PFVF: + if (list[ns].info.pf_num == bd) + ns++; + break; + default: + break; + } + continue; + } + if (!ret && (list[ns].info.representor ^ + list[ns].info.master)) + ns++; + } + if (!ns) { + DRV_LOG(ERR, + "unable to recognize master/representors" + " on the IB device with multiple ports"); + rte_errno = ENOENT; + ret = -rte_errno; + goto exit; + } + } else { + /* + * The existence of several matching entries (nd > 1) means + * port representors have been instantiated. No existing Verbs + * call nor sysfs entries can tell them apart, this can only + * be done through Netlink calls assuming kernel drivers are + * recent enough to support them. + * + * In the event of identification failure through Netlink, + * try again through sysfs, then: + * + * 1. A single IB device matches (nd == 1) with single + * port (np=0/1) and is not a representor, assume + * no switch support. + * + * 2. Otherwise no safe assumptions can be made; + * complain louder and bail out. + */ + for (i = 0; i != nd; ++i) { + memset(&list[ns].info, 0, sizeof(list[ns].info)); + list[ns].max_port = 1; + list[ns].ibv_port = 1; + list[ns].ibv_dev = ibv_match[i]; + list[ns].eth_dev = NULL; + list[ns].pci_dev = pci_dev; + list[ns].pf_bond = -1; + list[ns].ifindex = 0; + if (nl_rdma >= 0) + list[ns].ifindex = mlx5_nl_ifindex + (nl_rdma, list[ns].ibv_dev->name, 1); + if (!list[ns].ifindex) { + char ifname[IF_NAMESIZE]; + + /* + * Netlink failed, it may happen with old + * ib_core kernel driver (before 4.16). + * We can assume there is old driver because + * here we are processing single ports IB + * devices. Let's try sysfs to retrieve + * the ifindex. The method works for + * master device only. + */ + if (nd > 1) { + /* + * Multiple devices found, assume + * representors, can not distinguish + * master/representor and retrieve + * ifindex via sysfs. + */ + continue; + } + ret = mlx5_get_master_ifname + (ibv_match[i]->ibdev_path, &ifname); + if (!ret) + list[ns].ifindex = + if_nametoindex(ifname); + if (!list[ns].ifindex) { + /* + * No network interface index found + * for the specified device, it means + * there it is neither representor + * nor master. + */ + continue; + } + } + ret = -1; + if (nl_route >= 0) + ret = mlx5_nl_switch_info + (nl_route, + list[ns].ifindex, + &list[ns].info); + if (ret || (!list[ns].info.representor && + !list[ns].info.master)) { + /* + * We failed to recognize representors with + * Netlink, let's try to perform the task + * with sysfs. + */ + ret = mlx5_sysfs_switch_info + (list[ns].ifindex, + &list[ns].info); + } + if (!ret && (list[ns].info.representor ^ + list[ns].info.master)) { + ns++; + } else if ((nd == 1) && + !list[ns].info.representor && + !list[ns].info.master) { + /* + * Single IB device with + * one physical port and + * attached network device. + * May be SRIOV is not enabled + * or there is no representors. + */ + DRV_LOG(INFO, "no E-Switch support detected"); + ns++; + break; + } + } + if (!ns) { + DRV_LOG(ERR, + "unable to recognize master/representors" + " on the multiple IB devices"); + rte_errno = ENOENT; + ret = -rte_errno; + goto exit; + } + } + MLX5_ASSERT(ns); + /* + * Sort list to probe devices in natural order for users convenience + * (i.e. master first, then representors from lowest to highest ID). + */ + qsort(list, ns, sizeof(*list), mlx5_dev_spawn_data_cmp); + /* Default configuration. */ + dev_config = (struct mlx5_dev_config){ + .hw_padding = 0, + .mps = MLX5_ARG_UNSET, + .dbnc = MLX5_ARG_UNSET, + .rx_vec_en = 1, + .txq_inline_max = MLX5_ARG_UNSET, + .txq_inline_min = MLX5_ARG_UNSET, + .txq_inline_mpw = MLX5_ARG_UNSET, + .txqs_inline = MLX5_ARG_UNSET, + .vf_nl_en = 1, + .mr_ext_memseg_en = 1, + .mprq = { + .enabled = 0, /* Disabled by default. */ + .stride_num_n = 0, + .stride_size_n = 0, + .max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN, + .min_rxqs_num = MLX5_MPRQ_MIN_RXQS, + }, + .dv_esw_en = 1, + .dv_flow_en = 1, + .log_hp_size = MLX5_ARG_UNSET, + }; + /* Device specific configuration. */ + switch (pci_dev->id.device_id) { + case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF: + case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF: + case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF: + case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF: + case PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF: + case PCI_DEVICE_ID_MELLANOX_CONNECTX6VF: + case PCI_DEVICE_ID_MELLANOX_CONNECTX6DXVF: + dev_config.vf = 1; + break; + default: + break; + } + for (i = 0; i != ns; ++i) { + uint32_t restore; + + list[i].eth_dev = mlx5_dev_spawn(&pci_dev->device, + &list[i], + dev_config); + if (!list[i].eth_dev) { + if (rte_errno != EBUSY && rte_errno != EEXIST) + break; + /* Device is disabled or already spawned. Ignore it. */ + continue; + } + restore = list[i].eth_dev->data->dev_flags; + rte_eth_copy_pci_info(list[i].eth_dev, pci_dev); + /* Restore non-PCI flags cleared by the above call. */ + list[i].eth_dev->data->dev_flags |= restore; + rte_eth_dev_probing_finish(list[i].eth_dev); + } + if (i != ns) { + DRV_LOG(ERR, + "probe of PCI device " PCI_PRI_FMT " aborted after" + " encountering an error: %s", + pci_dev->addr.domain, pci_dev->addr.bus, + pci_dev->addr.devid, pci_dev->addr.function, + strerror(rte_errno)); + ret = -rte_errno; + /* Roll back. */ + while (i--) { + if (!list[i].eth_dev) + continue; + mlx5_dev_close(list[i].eth_dev); + /* mac_addrs must not be freed because in dev_private */ + list[i].eth_dev->data->mac_addrs = NULL; + claim_zero(rte_eth_dev_release_port(list[i].eth_dev)); + } + /* Restore original error. */ + rte_errno = -ret; + } else { + ret = 0; + } +exit: + /* + * Do the routine cleanup: + * - close opened Netlink sockets + * - free allocated spawn data array + * - free the Infiniband device list + */ + if (nl_rdma >= 0) + close(nl_rdma); + if (nl_route >= 0) + close(nl_route); + if (list) + rte_free(list); + MLX5_ASSERT(ibv_list); + mlx5_glue->free_device_list(ibv_list); + return ret; +} + +static int +mlx5_config_doorbell_mapping_env(const struct mlx5_dev_config *config) +{ + char *env; + int value; + + MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY); + /* Get environment variable to store. */ + env = getenv(MLX5_SHUT_UP_BF); + value = env ? !!strcmp(env, "0") : MLX5_ARG_UNSET; + if (config->dbnc == MLX5_ARG_UNSET) + setenv(MLX5_SHUT_UP_BF, MLX5_SHUT_UP_BF_DEFAULT, 1); + else + setenv(MLX5_SHUT_UP_BF, + config->dbnc == MLX5_TXDB_NCACHED ? "1" : "0", 1); + return value; +} + +static void +mlx5_restore_doorbell_mapping_env(int value) +{ + MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY); + /* Restore the original environment variable state. */ + if (value == MLX5_ARG_UNSET) + unsetenv(MLX5_SHUT_UP_BF); + else + setenv(MLX5_SHUT_UP_BF, value ? "1" : "0", 1); +} + +/** + * Extract pdn of PD object using DV API. + * + * @param[in] pd + * Pointer to the verbs PD object. + * @param[out] pdn + * Pointer to the PD object number variable. + * + * @return + * 0 on success, error value otherwise. + */ +int +mlx5_os_get_pdn(void *pd, uint32_t *pdn) +{ +#ifdef HAVE_IBV_FLOW_DV_SUPPORT + struct mlx5dv_obj obj; + struct mlx5dv_pd pd_info; + int ret = 0; + + obj.pd.in = pd; + obj.pd.out = &pd_info; + ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_PD); + if (ret) { + DRV_LOG(DEBUG, "Fail to get PD object info"); + return ret; + } + *pdn = pd_info.pdn; + return 0; +#else + (void)pd; + (void)pdn; + return -ENOTSUP; +#endif /* HAVE_IBV_FLOW_DV_SUPPORT */ +} + +/** + * Function API to open IB device. + * + * This function calls the Linux glue APIs to open a device. + * + * @param[in] spawn + * Pointer to the IB device attributes (name, port, etc). + * @param[out] config + * Pointer to device configuration structure. + * @param[out] sh + * Pointer to shared context structure. + * + * @return + * 0 on success, a positive error value otherwise. + */ +int +mlx5_os_open_device(const struct mlx5_dev_spawn_data *spawn, + const struct mlx5_dev_config *config, + struct mlx5_dev_ctx_shared *sh) +{ + int dbmap_env; + int err = 0; + /* + * Configure environment variable "MLX5_BF_SHUT_UP" + * before the device creation. The rdma_core library + * checks the variable at device creation and + * stores the result internally. + */ + dbmap_env = mlx5_config_doorbell_mapping_env(config); + /* Try to open IB device with DV first, then usual Verbs. */ + errno = 0; + sh->ctx = mlx5_glue->dv_open_device(spawn->ibv_dev); + if (sh->ctx) { + sh->devx = 1; + DRV_LOG(DEBUG, "DevX is supported"); + /* The device is created, no need for environment. */ + mlx5_restore_doorbell_mapping_env(dbmap_env); + } else { + /* The environment variable is still configured. */ + sh->ctx = mlx5_glue->open_device(spawn->ibv_dev); + err = errno ? errno : ENODEV; + /* + * The environment variable is not needed anymore, + * all device creation attempts are completed. + */ + mlx5_restore_doorbell_mapping_env(dbmap_env); + if (!sh->ctx) + return err; + DRV_LOG(DEBUG, "DevX is NOT supported"); + err = 0; + } + return err; +} + +/** + * Install shared asynchronous device events handler. + * This function is implemented to support event sharing + * between multiple ports of single IB device. + * + * @param sh + * Pointer to mlx5_dev_ctx_shared object. + */ +void +mlx5_os_dev_shared_handler_install(struct mlx5_dev_ctx_shared *sh) +{ + int ret; + int flags; + + sh->intr_handle.fd = -1; + flags = fcntl(((struct ibv_context *)sh->ctx)->async_fd, F_GETFL); + ret = fcntl(((struct ibv_context *)sh->ctx)->async_fd, + F_SETFL, flags | O_NONBLOCK); + if (ret) { + DRV_LOG(INFO, "failed to change file descriptor async event" + " queue"); + } else { + sh->intr_handle.fd = ((struct ibv_context *)sh->ctx)->async_fd; + sh->intr_handle.type = RTE_INTR_HANDLE_EXT; + if (rte_intr_callback_register(&sh->intr_handle, + mlx5_dev_interrupt_handler, sh)) { + DRV_LOG(INFO, "Fail to install the shared interrupt."); + sh->intr_handle.fd = -1; + } + } + if (sh->devx) { +#ifdef HAVE_IBV_DEVX_ASYNC + sh->intr_handle_devx.fd = -1; + sh->devx_comp = mlx5_glue->devx_create_cmd_comp(sh->ctx); + if (!sh->devx_comp) { + DRV_LOG(INFO, "failed to allocate devx_comp."); + return; + } + flags = fcntl(sh->devx_comp->fd, F_GETFL); + ret = fcntl(sh->devx_comp->fd, F_SETFL, flags | O_NONBLOCK); + if (ret) { + DRV_LOG(INFO, "failed to change file descriptor" + " devx comp"); + return; + } + sh->intr_handle_devx.fd = sh->devx_comp->fd; + sh->intr_handle_devx.type = RTE_INTR_HANDLE_EXT; + if (rte_intr_callback_register(&sh->intr_handle_devx, + mlx5_dev_interrupt_handler_devx, sh)) { + DRV_LOG(INFO, "Fail to install the devx shared" + " interrupt."); + sh->intr_handle_devx.fd = -1; + } +#endif /* HAVE_IBV_DEVX_ASYNC */ + } +} + +/** + * Uninstall shared asynchronous device events handler. + * This function is implemented to support event sharing + * between multiple ports of single IB device. + * + * @param dev + * Pointer to mlx5_dev_ctx_shared object. + */ +void +mlx5_os_dev_shared_handler_uninstall(struct mlx5_dev_ctx_shared *sh) +{ + if (sh->intr_handle.fd >= 0) + mlx5_intr_callback_unregister(&sh->intr_handle, + mlx5_dev_interrupt_handler, sh); +#ifdef HAVE_IBV_DEVX_ASYNC + if (sh->intr_handle_devx.fd >= 0) + rte_intr_callback_unregister(&sh->intr_handle_devx, + mlx5_dev_interrupt_handler_devx, sh); + if (sh->devx_comp) + mlx5_glue->devx_destroy_cmd_comp(sh->devx_comp); +#endif +} diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index 4f7b4d3ff6..f62ad12a94 100644 --- a/drivers/net/mlx5/mlx5.c +++ b/drivers/net/mlx5/mlx5.c @@ -10,7 +10,6 @@ #include #include #include -#include #include #include @@ -164,15 +163,6 @@ /* Flow memory reclaim mode. */ #define MLX5_RECLAIM_MEM "reclaim_mem_mode" -#ifndef HAVE_IBV_MLX5_MOD_MPW -#define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2) -#define MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW (1 << 3) -#endif - -#ifndef HAVE_IBV_MLX5_MOD_CQE_128B_COMP -#define MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP (1 << 4) -#endif - static const char *MZ_MLX5_PMD_SHARED_DATA = "mlx5_pmd_shared_data"; /* Shared memory between primary and secondary processes. */ @@ -183,22 +173,9 @@ static rte_spinlock_t mlx5_shared_data_lock = RTE_SPINLOCK_INITIALIZER; /* Process local data for secondary processes. */ static struct mlx5_local_data mlx5_local_data; - /** Driver-specific log messages type. */ int mlx5_logtype; -/** Data associated with devices to spawn. */ -struct mlx5_dev_spawn_data { - uint32_t ifindex; /**< Network interface index. */ - uint32_t max_port; /**< IB device maximal port index. */ - uint32_t ibv_port; /**< IB device physical port index. */ - int pf_bond; /**< bonding device PF index. < 0 - no bonding */ - struct mlx5_switch_info info; /**< Switch information. */ - struct ibv_device *ibv_dev; /**< Associated IB device. */ - struct rte_eth_dev *eth_dev; /**< Associated Ethernet device. */ - struct rte_pci_device *pci_dev; /**< Backend PCI device. */ -}; - static LIST_HEAD(, mlx5_dev_ctx_shared) mlx5_ibv_list = LIST_HEAD_INITIALIZER(); static pthread_mutex_t mlx5_ibv_list_mutex = PTHREAD_MUTEX_INITIALIZER; @@ -320,7 +297,6 @@ static struct mlx5_indexed_pool_config mlx5_ipool_cfg[] = { #define MLX5_ID_GENERATION_ARRAY_FACTOR 16 #define MLX5_FLOW_TABLE_HLIST_ARRAY_SIZE 4096 -#define MLX5_TAGS_HLIST_ARRAY_SIZE 8192 /** * Allocate ID pool structure. @@ -602,146 +578,6 @@ mlx5_flow_ipool_destroy(struct mlx5_dev_ctx_shared *sh) mlx5_ipool_destroy(sh->ipool[i]); } -/** - * Extract pdn of PD object using DV API. - * - * @param[in] pd - * Pointer to the verbs PD object. - * @param[out] pdn - * Pointer to the PD object number variable. - * - * @return - * 0 on success, error value otherwise. - */ -#ifdef HAVE_IBV_FLOW_DV_SUPPORT -static int -mlx5_get_pdn(struct ibv_pd *pd __rte_unused, uint32_t *pdn __rte_unused) -{ - struct mlx5dv_obj obj; - struct mlx5dv_pd pd_info; - int ret = 0; - - obj.pd.in = pd; - obj.pd.out = &pd_info; - ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_PD); - if (ret) { - DRV_LOG(DEBUG, "Fail to get PD object info"); - return ret; - } - *pdn = pd_info.pdn; - return 0; -} -#endif /* HAVE_IBV_FLOW_DV_SUPPORT */ - -static int -mlx5_config_doorbell_mapping_env(const struct mlx5_dev_config *config) -{ - char *env; - int value; - - MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY); - /* Get environment variable to store. */ - env = getenv(MLX5_SHUT_UP_BF); - value = env ? !!strcmp(env, "0") : MLX5_ARG_UNSET; - if (config->dbnc == MLX5_ARG_UNSET) - setenv(MLX5_SHUT_UP_BF, MLX5_SHUT_UP_BF_DEFAULT, 1); - else - setenv(MLX5_SHUT_UP_BF, - config->dbnc == MLX5_TXDB_NCACHED ? "1" : "0", 1); - return value; -} - -static void -mlx5_restore_doorbell_mapping_env(int value) -{ - MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY); - /* Restore the original environment variable state. */ - if (value == MLX5_ARG_UNSET) - unsetenv(MLX5_SHUT_UP_BF); - else - setenv(MLX5_SHUT_UP_BF, value ? "1" : "0", 1); -} - -/** - * Install shared asynchronous device events handler. - * This function is implemented to support event sharing - * between multiple ports of single IB device. - * - * @param sh - * Pointer to mlx5_dev_ctx_shared object. - */ -static void -mlx5_dev_shared_handler_install(struct mlx5_dev_ctx_shared *sh) -{ - int ret; - int flags; - - sh->intr_handle.fd = -1; - flags = fcntl(((struct ibv_context *)sh->ctx)->async_fd, F_GETFL); - ret = fcntl(((struct ibv_context *)sh->ctx)->async_fd, - F_SETFL, flags | O_NONBLOCK); - if (ret) { - DRV_LOG(INFO, "failed to change file descriptor async event" - " queue"); - } else { - sh->intr_handle.fd = ((struct ibv_context *)sh->ctx)->async_fd; - sh->intr_handle.type = RTE_INTR_HANDLE_EXT; - if (rte_intr_callback_register(&sh->intr_handle, - mlx5_dev_interrupt_handler, sh)) { - DRV_LOG(INFO, "Fail to install the shared interrupt."); - sh->intr_handle.fd = -1; - } - } - if (sh->devx) { -#ifdef HAVE_IBV_DEVX_ASYNC - sh->intr_handle_devx.fd = -1; - sh->devx_comp = mlx5_glue->devx_create_cmd_comp(sh->ctx); - if (!sh->devx_comp) { - DRV_LOG(INFO, "failed to allocate devx_comp."); - return; - } - flags = fcntl(sh->devx_comp->fd, F_GETFL); - ret = fcntl(sh->devx_comp->fd, F_SETFL, flags | O_NONBLOCK); - if (ret) { - DRV_LOG(INFO, "failed to change file descriptor" - " devx comp"); - return; - } - sh->intr_handle_devx.fd = sh->devx_comp->fd; - sh->intr_handle_devx.type = RTE_INTR_HANDLE_EXT; - if (rte_intr_callback_register(&sh->intr_handle_devx, - mlx5_dev_interrupt_handler_devx, sh)) { - DRV_LOG(INFO, "Fail to install the devx shared" - " interrupt."); - sh->intr_handle_devx.fd = -1; - } -#endif /* HAVE_IBV_DEVX_ASYNC */ - } -} - -/** - * Uninstall shared asynchronous device events handler. - * This function is implemented to support event sharing - * between multiple ports of single IB device. - * - * @param dev - * Pointer to mlx5_dev_ctx_shared object. - */ -static void -mlx5_dev_shared_handler_uninstall(struct mlx5_dev_ctx_shared *sh) -{ - if (sh->intr_handle.fd >= 0) - mlx5_intr_callback_unregister(&sh->intr_handle, - mlx5_dev_interrupt_handler, sh); -#ifdef HAVE_IBV_DEVX_ASYNC - if (sh->intr_handle_devx.fd >= 0) - rte_intr_callback_unregister(&sh->intr_handle_devx, - mlx5_dev_interrupt_handler_devx, sh); - if (sh->devx_comp) - mlx5_glue->devx_destroy_cmd_comp(sh->devx_comp); -#endif -} - /** * Allocate shared IB device context. If there is multiport device the * master and representors will share this context, if there is single @@ -762,17 +598,14 @@ mlx5_dev_shared_handler_uninstall(struct mlx5_dev_ctx_shared *sh) * Pointer to mlx5_dev_ctx_shared object on success, * otherwise NULL and rte_errno is set. */ -static struct mlx5_dev_ctx_shared * +struct mlx5_dev_ctx_shared * mlx5_alloc_shared_ibctx(const struct mlx5_dev_spawn_data *spawn, const struct mlx5_dev_config *config) { struct mlx5_dev_ctx_shared *sh; - int dbmap_env; int err = 0; uint32_t i; -#ifdef HAVE_IBV_FLOW_DV_SUPPORT struct mlx5_devx_tis_attr tis_attr = { 0 }; -#endif MLX5_ASSERT(spawn); /* Secondary process should not create the shared context. */ @@ -797,34 +630,9 @@ mlx5_alloc_shared_ibctx(const struct mlx5_dev_spawn_data *spawn, rte_errno = ENOMEM; goto exit; } - /* - * Configure environment variable "MLX5_BF_SHUT_UP" - * before the device creation. The rdma_core library - * checks the variable at device creation and - * stores the result internally. - */ - dbmap_env = mlx5_config_doorbell_mapping_env(config); - /* Try to open IB device with DV first, then usual Verbs. */ - errno = 0; - sh->ctx = mlx5_glue->dv_open_device(spawn->ibv_dev); - if (sh->ctx) { - sh->devx = 1; - DRV_LOG(DEBUG, "DevX is supported"); - /* The device is created, no need for environment. */ - mlx5_restore_doorbell_mapping_env(dbmap_env); - } else { - /* The environment variable is still configured. */ - sh->ctx = mlx5_glue->open_device(spawn->ibv_dev); - err = errno ? errno : ENODEV; - /* - * The environment variable is not needed anymore, - * all device creation attempts are completed. - */ - mlx5_restore_doorbell_mapping_env(dbmap_env); - if (!sh->ctx) - goto error; - DRV_LOG(DEBUG, "DevX is NOT supported"); - } + err = mlx5_os_open_device(spawn, config, sh); + if (!sh->ctx) + goto error; err = mlx5_os_get_dev_attr(sh->ctx, &sh->device_attr); if (err) { DRV_LOG(DEBUG, "mlx5_os_get_dev_attr() failed"); @@ -851,9 +659,8 @@ mlx5_alloc_shared_ibctx(const struct mlx5_dev_spawn_data *spawn, err = ENOMEM; goto error; } -#ifdef HAVE_IBV_FLOW_DV_SUPPORT if (sh->devx) { - err = mlx5_get_pdn(sh->pd, &sh->pdn); + err = mlx5_os_get_pdn(sh->pd, &sh->pdn); if (err) { DRV_LOG(ERR, "Fail to extract pdn from PD"); goto error; @@ -879,7 +686,6 @@ mlx5_alloc_shared_ibctx(const struct mlx5_dev_spawn_data *spawn, err = ENOMEM; goto error; } -#endif /* HAVE_IBV_FLOW_DV_SUPPORT */ /* * Once the device is added to the list of memory event * callback, its global MR cache table cannot be expanded @@ -896,7 +702,7 @@ mlx5_alloc_shared_ibctx(const struct mlx5_dev_spawn_data *spawn, err = rte_errno; goto error; } - mlx5_dev_shared_handler_install(sh); + mlx5_os_dev_shared_handler_install(sh); mlx5_flow_aging_init(sh); mlx5_flow_counters_mng_init(sh); mlx5_flow_ipool_create(sh, config); @@ -936,7 +742,7 @@ error: * @param[in] sh * Pointer to mlx5_dev_ctx_shared object to free */ -static void +void mlx5_free_shared_ibctx(struct mlx5_dev_ctx_shared *sh) { pthread_mutex_lock(&mlx5_ibv_list_mutex); @@ -973,7 +779,7 @@ mlx5_free_shared_ibctx(struct mlx5_dev_ctx_shared *sh) **/ mlx5_flow_counters_mng_close(sh); mlx5_flow_ipool_destroy(sh); - mlx5_dev_shared_handler_uninstall(sh); + mlx5_os_dev_shared_handler_uninstall(sh); if (sh->pd) claim_zero(mlx5_glue->dealloc_pd(sh->pd)); if (sh->tis) @@ -995,7 +801,7 @@ exit: * @param[in] priv * Pointer to the private device data structure. */ -static void +void mlx5_free_table_hash_list(struct mlx5_priv *priv) { struct mlx5_dev_ctx_shared *sh = priv->sh; @@ -1052,7 +858,7 @@ mlx5_free_table_hash_list(struct mlx5_priv *priv) * @return * Zero on success, positive error code otherwise. */ -static int +int mlx5_alloc_table_hash_list(struct mlx5_priv *priv) { struct mlx5_dev_ctx_shared *sh = priv->sh; @@ -1126,173 +932,6 @@ error: return err; } -/** - * Initialize DR related data within private structure. - * Routine checks the reference counter and does actual - * resources creation/initialization only if counter is zero. - * - * @param[in] priv - * Pointer to the private device data structure. - * - * @return - * Zero on success, positive error code otherwise. - */ -static int -mlx5_alloc_shared_dr(struct mlx5_priv *priv) -{ - struct mlx5_dev_ctx_shared *sh = priv->sh; - char s[MLX5_HLIST_NAMESIZE]; - int err = 0; - - if (!sh->flow_tbls) - err = mlx5_alloc_table_hash_list(priv); - else - DRV_LOG(DEBUG, "sh->flow_tbls[%p] already created, reuse\n", - (void *)sh->flow_tbls); - if (err) - return err; - /* Create tags hash list table. */ - snprintf(s, sizeof(s), "%s_tags", sh->ibdev_name); - sh->tag_table = mlx5_hlist_create(s, MLX5_TAGS_HLIST_ARRAY_SIZE); - if (!sh->tag_table) { - DRV_LOG(ERR, "tags with hash creation failed.\n"); - err = ENOMEM; - goto error; - } -#ifdef HAVE_MLX5DV_DR - void *domain; - - if (sh->dv_refcnt) { - /* Shared DV/DR structures is already initialized. */ - sh->dv_refcnt++; - priv->dr_shared = 1; - return 0; - } - /* Reference counter is zero, we should initialize structures. */ - domain = mlx5_glue->dr_create_domain(sh->ctx, - MLX5DV_DR_DOMAIN_TYPE_NIC_RX); - if (!domain) { - DRV_LOG(ERR, "ingress mlx5dv_dr_create_domain failed"); - err = errno; - goto error; - } - sh->rx_domain = domain; - domain = mlx5_glue->dr_create_domain(sh->ctx, - MLX5DV_DR_DOMAIN_TYPE_NIC_TX); - if (!domain) { - DRV_LOG(ERR, "egress mlx5dv_dr_create_domain failed"); - err = errno; - goto error; - } - pthread_mutex_init(&sh->dv_mutex, NULL); - sh->tx_domain = domain; -#ifdef HAVE_MLX5DV_DR_ESWITCH - if (priv->config.dv_esw_en) { - domain = mlx5_glue->dr_create_domain - (sh->ctx, MLX5DV_DR_DOMAIN_TYPE_FDB); - if (!domain) { - DRV_LOG(ERR, "FDB mlx5dv_dr_create_domain failed"); - err = errno; - goto error; - } - sh->fdb_domain = domain; - sh->esw_drop_action = mlx5_glue->dr_create_flow_action_drop(); - } -#endif - if (priv->config.reclaim_mode == MLX5_RCM_AGGR) { - mlx5_glue->dr_reclaim_domain_memory(sh->rx_domain, 1); - mlx5_glue->dr_reclaim_domain_memory(sh->tx_domain, 1); - if (sh->fdb_domain) - mlx5_glue->dr_reclaim_domain_memory(sh->fdb_domain, 1); - } - sh->pop_vlan_action = mlx5_glue->dr_create_flow_action_pop_vlan(); -#endif /* HAVE_MLX5DV_DR */ - sh->dv_refcnt++; - priv->dr_shared = 1; - return 0; -error: - /* Rollback the created objects. */ - if (sh->rx_domain) { - mlx5_glue->dr_destroy_domain(sh->rx_domain); - sh->rx_domain = NULL; - } - if (sh->tx_domain) { - mlx5_glue->dr_destroy_domain(sh->tx_domain); - sh->tx_domain = NULL; - } - if (sh->fdb_domain) { - mlx5_glue->dr_destroy_domain(sh->fdb_domain); - sh->fdb_domain = NULL; - } - if (sh->esw_drop_action) { - mlx5_glue->destroy_flow_action(sh->esw_drop_action); - sh->esw_drop_action = NULL; - } - if (sh->pop_vlan_action) { - mlx5_glue->destroy_flow_action(sh->pop_vlan_action); - sh->pop_vlan_action = NULL; - } - if (sh->tag_table) { - /* tags should be destroyed with flow before. */ - mlx5_hlist_destroy(sh->tag_table, NULL, NULL); - sh->tag_table = NULL; - } - mlx5_free_table_hash_list(priv); - return err; -} - -/** - * Destroy DR related data within private structure. - * - * @param[in] priv - * Pointer to the private device data structure. - */ -static void -mlx5_free_shared_dr(struct mlx5_priv *priv) -{ - struct mlx5_dev_ctx_shared *sh; - - if (!priv->dr_shared) - return; - priv->dr_shared = 0; - sh = priv->sh; - MLX5_ASSERT(sh); -#ifdef HAVE_MLX5DV_DR - MLX5_ASSERT(sh->dv_refcnt); - if (sh->dv_refcnt && --sh->dv_refcnt) - return; - if (sh->rx_domain) { - mlx5_glue->dr_destroy_domain(sh->rx_domain); - sh->rx_domain = NULL; - } - if (sh->tx_domain) { - mlx5_glue->dr_destroy_domain(sh->tx_domain); - sh->tx_domain = NULL; - } -#ifdef HAVE_MLX5DV_DR_ESWITCH - if (sh->fdb_domain) { - mlx5_glue->dr_destroy_domain(sh->fdb_domain); - sh->fdb_domain = NULL; - } - if (sh->esw_drop_action) { - mlx5_glue->destroy_flow_action(sh->esw_drop_action); - sh->esw_drop_action = NULL; - } -#endif - if (sh->pop_vlan_action) { - mlx5_glue->destroy_flow_action(sh->pop_vlan_action); - sh->pop_vlan_action = NULL; - } - pthread_mutex_destroy(&sh->dv_mutex); -#endif /* HAVE_MLX5DV_DR */ - if (sh->tag_table) { - /* tags should be destroyed with flow before. */ - mlx5_hlist_destroy(sh->tag_table, NULL, NULL); - sh->tag_table = NULL; - } - mlx5_free_table_hash_list(priv); -} - /** * Initialize shared data between primary and secondary process. * @@ -1361,60 +1000,6 @@ mlx5_getenv_int(const char *name) return atoi(val); } -/** - * Verbs callback to allocate a memory. This function should allocate the space - * according to the size provided residing inside a huge page. - * Please note that all allocation must respect the alignment from libmlx5 - * (i.e. currently sysconf(_SC_PAGESIZE)). - * - * @param[in] size - * The size in bytes of the memory to allocate. - * @param[in] data - * A pointer to the callback data. - * - * @return - * Allocated buffer, NULL otherwise and rte_errno is set. - */ -static void * -mlx5_alloc_verbs_buf(size_t size, void *data) -{ - struct mlx5_priv *priv = data; - void *ret; - size_t alignment = sysconf(_SC_PAGESIZE); - unsigned int socket = SOCKET_ID_ANY; - - if (priv->verbs_alloc_ctx.type == MLX5_VERBS_ALLOC_TYPE_TX_QUEUE) { - const struct mlx5_txq_ctrl *ctrl = priv->verbs_alloc_ctx.obj; - - socket = ctrl->socket; - } else if (priv->verbs_alloc_ctx.type == - MLX5_VERBS_ALLOC_TYPE_RX_QUEUE) { - const struct mlx5_rxq_ctrl *ctrl = priv->verbs_alloc_ctx.obj; - - socket = ctrl->socket; - } - MLX5_ASSERT(data != NULL); - ret = rte_malloc_socket(__func__, size, alignment, socket); - if (!ret && size) - rte_errno = ENOMEM; - return ret; -} - -/** - * Verbs callback to free a memory. - * - * @param[in] ptr - * A pointer to the memory to free. - * @param[in] data - * A pointer to the callback data. - */ -static void -mlx5_free_verbs_buf(void *ptr, void *data __rte_unused) -{ - MLX5_ASSERT(data != NULL); - rte_free(ptr); -} - /** * DPDK callback to add udp tunnel port * @@ -1496,7 +1081,7 @@ mlx5_proc_priv_uninit(struct rte_eth_dev *dev) * @param dev * Pointer to Ethernet device structure. */ -static void +void mlx5_dev_close(struct rte_eth_dev *dev) { struct mlx5_priv *priv = dev->data->dev_private; @@ -1558,7 +1143,7 @@ mlx5_dev_close(struct rte_eth_dev *dev) if (priv->mreg_cp_tbl) mlx5_hlist_destroy(priv->mreg_cp_tbl, NULL, NULL); mlx5_mprq_free_mp(dev); - mlx5_free_shared_dr(priv); + mlx5_os_free_shared_dr(priv); if (priv->rss_conf.rss_key != NULL) rte_free(priv->rss_conf.rss_key); if (priv->reta_idx != NULL) @@ -1696,7 +1281,7 @@ const struct eth_dev_ops mlx5_dev_ops = { }; /* Available operations from secondary process. */ -static const struct eth_dev_ops mlx5_dev_sec_ops = { +const struct eth_dev_ops mlx5_dev_sec_ops = { .stats_get = mlx5_stats_get, .stats_reset = mlx5_stats_reset, .xstats_get = mlx5_xstats_get, @@ -1904,7 +1489,7 @@ mlx5_args_check(const char *key, const char *val, void *opaque) * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ -static int +int mlx5_args(struct mlx5_dev_config *config, struct rte_devargs *devargs) { const char **params = (const char *[]){ @@ -1970,8 +1555,6 @@ mlx5_args(struct mlx5_dev_config *config, struct rte_devargs *devargs) return 0; } -static struct rte_pci_driver mlx5_driver; - /** * PMD global initialization. * @@ -1982,7 +1565,7 @@ static struct rte_pci_driver mlx5_driver; * @return * 0 on success, a negative errno value otherwise and rte_errno is set. */ -static int +int mlx5_init_once(void) { struct mlx5_shared_data *sd; @@ -2042,7 +1625,7 @@ out: * @param config * Device configuration parameters. */ -static void +void mlx5_set_min_inline(struct mlx5_dev_spawn_data *spawn, struct mlx5_dev_config *config) { @@ -2152,7 +1735,7 @@ exit: * @param [in] dev * Pointer to Ethernet device. */ -static void +void mlx5_set_metadata_mask(struct rte_eth_dev *dev) { struct mlx5_priv *priv = dev->data->dev_private; @@ -2340,21 +1923,20 @@ rte_pmd_mlx5_get_dyn_flag_names(char *names[], unsigned int n) } /** - * Check sibling device configurations. + * Comparison callback to sort device data. * - * Sibling devices sharing the Infiniband device context - * should have compatible configurations. This regards - * representors and bonding slaves. + * This is meant to be used with qsort(). * - * @param priv - * Private device descriptor. - * @param config - * Configuration of the device is going to be created. + * @param a[in] + * Pointer to pointer to first data object. + * @param b[in] + * Pointer to pointer to second data object. * * @return - * 0 on success, EINVAL otherwise + * 0 if both objects are equal, less than 0 if the first argument is less + * than the second, greater than 0 otherwise. */ -static int +int mlx5_dev_check_sibling_config(struct mlx5_priv *priv, struct mlx5_dev_config *config) { @@ -2392,1367 +1974,6 @@ mlx5_dev_check_sibling_config(struct mlx5_priv *priv, } return 0; } -/** - * Spawn an Ethernet device from Verbs information. - * - * @param dpdk_dev - * Backing DPDK device. - * @param spawn - * Verbs device parameters (name, port, switch_info) to spawn. - * @param config - * Device configuration parameters. - * - * @return - * A valid Ethernet device object on success, NULL otherwise and rte_errno - * is set. The following errors are defined: - * - * EBUSY: device is not supposed to be spawned. - * EEXIST: device is already spawned - */ -static struct rte_eth_dev * -mlx5_dev_spawn(struct rte_device *dpdk_dev, - struct mlx5_dev_spawn_data *spawn, - struct mlx5_dev_config config) -{ - const struct mlx5_switch_info *switch_info = &spawn->info; - struct mlx5_dev_ctx_shared *sh = NULL; - struct ibv_port_attr port_attr; - struct mlx5dv_context dv_attr = { .comp_mask = 0 }; - struct rte_eth_dev *eth_dev = NULL; - struct mlx5_priv *priv = NULL; - int err = 0; - unsigned int hw_padding = 0; - unsigned int mps; - unsigned int cqe_comp; - unsigned int cqe_pad = 0; - unsigned int tunnel_en = 0; - unsigned int mpls_en = 0; - unsigned int swp = 0; - unsigned int mprq = 0; - unsigned int mprq_min_stride_size_n = 0; - unsigned int mprq_max_stride_size_n = 0; - unsigned int mprq_min_stride_num_n = 0; - unsigned int mprq_max_stride_num_n = 0; - struct rte_ether_addr mac; - char name[RTE_ETH_NAME_MAX_LEN]; - int own_domain_id = 0; - uint16_t port_id; - unsigned int i; -#ifdef HAVE_MLX5DV_DR_DEVX_PORT - struct mlx5dv_devx_port devx_port = { .comp_mask = 0 }; -#endif - - /* Determine if this port representor is supposed to be spawned. */ - if (switch_info->representor && dpdk_dev->devargs) { - struct rte_eth_devargs eth_da; - - err = rte_eth_devargs_parse(dpdk_dev->devargs->args, ð_da); - if (err) { - rte_errno = -err; - DRV_LOG(ERR, "failed to process device arguments: %s", - strerror(rte_errno)); - return NULL; - } - for (i = 0; i < eth_da.nb_representor_ports; ++i) - if (eth_da.representor_ports[i] == - (uint16_t)switch_info->port_name) - break; - if (i == eth_da.nb_representor_ports) { - rte_errno = EBUSY; - return NULL; - } - } - /* Build device name. */ - if (spawn->pf_bond < 0) { - /* Single device. */ - if (!switch_info->representor) - strlcpy(name, dpdk_dev->name, sizeof(name)); - else - snprintf(name, sizeof(name), "%s_representor_%u", - dpdk_dev->name, switch_info->port_name); - } else { - /* Bonding device. */ - if (!switch_info->representor) - snprintf(name, sizeof(name), "%s_%s", - dpdk_dev->name, spawn->ibv_dev->name); - else - snprintf(name, sizeof(name), "%s_%s_representor_%u", - dpdk_dev->name, spawn->ibv_dev->name, - switch_info->port_name); - } - /* check if the device is already spawned */ - if (rte_eth_dev_get_port_by_name(name, &port_id) == 0) { - rte_errno = EEXIST; - return NULL; - } - DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name); - if (rte_eal_process_type() == RTE_PROC_SECONDARY) { - struct mlx5_mp_id mp_id; - - eth_dev = rte_eth_dev_attach_secondary(name); - if (eth_dev == NULL) { - DRV_LOG(ERR, "can not attach rte ethdev"); - rte_errno = ENOMEM; - return NULL; - } - eth_dev->device = dpdk_dev; - eth_dev->dev_ops = &mlx5_dev_sec_ops; - err = mlx5_proc_priv_init(eth_dev); - if (err) - return NULL; - mp_id.port_id = eth_dev->data->port_id; - strlcpy(mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN); - /* Receive command fd from primary process */ - err = mlx5_mp_req_verbs_cmd_fd(&mp_id); - if (err < 0) - goto err_secondary; - /* Remap UAR for Tx queues. */ - err = mlx5_tx_uar_init_secondary(eth_dev, err); - if (err) - goto err_secondary; - /* - * Ethdev pointer is still required as input since - * the primary device is not accessible from the - * secondary process. - */ - eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev); - eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev); - return eth_dev; -err_secondary: - mlx5_dev_close(eth_dev); - return NULL; - } - /* - * Some parameters ("tx_db_nc" in particularly) are needed in - * advance to create dv/verbs device context. We proceed the - * devargs here to get ones, and later proceed devargs again - * to override some hardware settings. - */ - err = mlx5_args(&config, dpdk_dev->devargs); - if (err) { - err = rte_errno; - DRV_LOG(ERR, "failed to process device arguments: %s", - strerror(rte_errno)); - goto error; - } - sh = mlx5_alloc_shared_ibctx(spawn, &config); - if (!sh) - return NULL; - config.devx = sh->devx; -#ifdef HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR - config.dest_tir = 1; -#endif -#ifdef HAVE_IBV_MLX5_MOD_SWP - dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP; -#endif - /* - * Multi-packet send is supported by ConnectX-4 Lx PF as well - * as all ConnectX-5 devices. - */ -#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT - dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS; -#endif -#ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT - dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ; -#endif - mlx5_glue->dv_query_device(sh->ctx, &dv_attr); - if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) { - if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) { - DRV_LOG(DEBUG, "enhanced MPW is supported"); - mps = MLX5_MPW_ENHANCED; - } else { - DRV_LOG(DEBUG, "MPW is supported"); - mps = MLX5_MPW; - } - } else { - DRV_LOG(DEBUG, "MPW isn't supported"); - mps = MLX5_MPW_DISABLED; - } -#ifdef HAVE_IBV_MLX5_MOD_SWP - if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_SWP) - swp = dv_attr.sw_parsing_caps.sw_parsing_offloads; - DRV_LOG(DEBUG, "SWP support: %u", swp); -#endif - config.swp = !!swp; -#ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT - if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) { - struct mlx5dv_striding_rq_caps mprq_caps = - dv_attr.striding_rq_caps; - - DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %d", - mprq_caps.min_single_stride_log_num_of_bytes); - DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %d", - mprq_caps.max_single_stride_log_num_of_bytes); - DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %d", - mprq_caps.min_single_wqe_log_num_of_strides); - DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %d", - mprq_caps.max_single_wqe_log_num_of_strides); - DRV_LOG(DEBUG, "\tsupported_qpts: %d", - mprq_caps.supported_qpts); - DRV_LOG(DEBUG, "device supports Multi-Packet RQ"); - mprq = 1; - mprq_min_stride_size_n = - mprq_caps.min_single_stride_log_num_of_bytes; - mprq_max_stride_size_n = - mprq_caps.max_single_stride_log_num_of_bytes; - mprq_min_stride_num_n = - mprq_caps.min_single_wqe_log_num_of_strides; - mprq_max_stride_num_n = - mprq_caps.max_single_wqe_log_num_of_strides; - } -#endif - if (RTE_CACHE_LINE_SIZE == 128 && - !(dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP)) - cqe_comp = 0; - else - cqe_comp = 1; - config.cqe_comp = cqe_comp; -#ifdef HAVE_IBV_MLX5_MOD_CQE_128B_PAD - /* Whether device supports 128B Rx CQE padding. */ - cqe_pad = RTE_CACHE_LINE_SIZE == 128 && - (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_PAD); -#endif -#ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT - if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) { - tunnel_en = ((dv_attr.tunnel_offloads_caps & - MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_VXLAN) && - (dv_attr.tunnel_offloads_caps & - MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GRE) && - (dv_attr.tunnel_offloads_caps & - MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GENEVE)); - } - DRV_LOG(DEBUG, "tunnel offloading is %ssupported", - tunnel_en ? "" : "not "); -#else - DRV_LOG(WARNING, - "tunnel offloading disabled due to old OFED/rdma-core version"); -#endif - config.tunnel_en = tunnel_en; -#ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT - mpls_en = ((dv_attr.tunnel_offloads_caps & - MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_GRE) && - (dv_attr.tunnel_offloads_caps & - MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_UDP)); - DRV_LOG(DEBUG, "MPLS over GRE/UDP tunnel offloading is %ssupported", - mpls_en ? "" : "not "); -#else - DRV_LOG(WARNING, "MPLS over GRE/UDP tunnel offloading disabled due to" - " old OFED/rdma-core version or firmware configuration"); -#endif - config.mpls_en = mpls_en; - /* Check port status. */ - err = mlx5_glue->query_port(sh->ctx, spawn->ibv_port, &port_attr); - if (err) { - DRV_LOG(ERR, "port query failed: %s", strerror(err)); - goto error; - } - if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) { - DRV_LOG(ERR, "port is not configured in Ethernet mode"); - err = EINVAL; - goto error; - } - if (port_attr.state != IBV_PORT_ACTIVE) - DRV_LOG(DEBUG, "port is not active: \"%s\" (%d)", - mlx5_glue->port_state_str(port_attr.state), - port_attr.state); - /* Allocate private eth device data. */ - priv = rte_zmalloc("ethdev private structure", - sizeof(*priv), - RTE_CACHE_LINE_SIZE); - if (priv == NULL) { - DRV_LOG(ERR, "priv allocation failure"); - err = ENOMEM; - goto error; - } - priv->sh = sh; - priv->ibv_port = spawn->ibv_port; - priv->pci_dev = spawn->pci_dev; - priv->mtu = RTE_ETHER_MTU; - priv->mp_id.port_id = port_id; - strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN); -#ifndef RTE_ARCH_64 - /* Initialize UAR access locks for 32bit implementations. */ - rte_spinlock_init(&priv->uar_lock_cq); - for (i = 0; i < MLX5_UAR_PAGE_NUM_MAX; i++) - rte_spinlock_init(&priv->uar_lock[i]); -#endif - /* Some internal functions rely on Netlink sockets, open them now. */ - priv->nl_socket_rdma = mlx5_nl_init(NETLINK_RDMA); - priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE); - priv->representor = !!switch_info->representor; - priv->master = !!switch_info->master; - priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID; - priv->vport_meta_tag = 0; - priv->vport_meta_mask = 0; - priv->pf_bond = spawn->pf_bond; -#ifdef HAVE_MLX5DV_DR_DEVX_PORT - /* - * The DevX port query API is implemented. E-Switch may use - * either vport or reg_c[0] metadata register to match on - * vport index. The engaged part of metadata register is - * defined by mask. - */ - if (switch_info->representor || switch_info->master) { - devx_port.comp_mask = MLX5DV_DEVX_PORT_VPORT | - MLX5DV_DEVX_PORT_MATCH_REG_C_0; - err = mlx5_glue->devx_port_query(sh->ctx, spawn->ibv_port, - &devx_port); - if (err) { - DRV_LOG(WARNING, - "can't query devx port %d on device %s", - spawn->ibv_port, spawn->ibv_dev->name); - devx_port.comp_mask = 0; - } - } - if (devx_port.comp_mask & MLX5DV_DEVX_PORT_MATCH_REG_C_0) { - priv->vport_meta_tag = devx_port.reg_c_0.value; - priv->vport_meta_mask = devx_port.reg_c_0.mask; - if (!priv->vport_meta_mask) { - DRV_LOG(ERR, "vport zero mask for port %d" - " on bonding device %s", - spawn->ibv_port, spawn->ibv_dev->name); - err = ENOTSUP; - goto error; - } - if (priv->vport_meta_tag & ~priv->vport_meta_mask) { - DRV_LOG(ERR, "invalid vport tag for port %d" - " on bonding device %s", - spawn->ibv_port, spawn->ibv_dev->name); - err = ENOTSUP; - goto error; - } - } - if (devx_port.comp_mask & MLX5DV_DEVX_PORT_VPORT) { - priv->vport_id = devx_port.vport_num; - } else if (spawn->pf_bond >= 0) { - DRV_LOG(ERR, "can't deduce vport index for port %d" - " on bonding device %s", - spawn->ibv_port, spawn->ibv_dev->name); - err = ENOTSUP; - goto error; - } else { - /* Suppose vport index in compatible way. */ - priv->vport_id = switch_info->representor ? - switch_info->port_name + 1 : -1; - } -#else - /* - * Kernel/rdma_core support single E-Switch per PF configurations - * only and vport_id field contains the vport index for - * associated VF, which is deduced from representor port name. - * For example, let's have the IB device port 10, it has - * attached network device eth0, which has port name attribute - * pf0vf2, we can deduce the VF number as 2, and set vport index - * as 3 (2+1). This assigning schema should be changed if the - * multiple E-Switch instances per PF configurations or/and PCI - * subfunctions are added. - */ - priv->vport_id = switch_info->representor ? - switch_info->port_name + 1 : -1; -#endif - /* representor_id field keeps the unmodified VF index. */ - priv->representor_id = switch_info->representor ? - switch_info->port_name : -1; - /* - * Look for sibling devices in order to reuse their switch domain - * if any, otherwise allocate one. - */ - MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) { - const struct mlx5_priv *opriv = - rte_eth_devices[port_id].data->dev_private; - - if (!opriv || - opriv->sh != priv->sh || - opriv->domain_id == - RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) - continue; - priv->domain_id = opriv->domain_id; - break; - } - if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) { - err = rte_eth_switch_domain_alloc(&priv->domain_id); - if (err) { - err = rte_errno; - DRV_LOG(ERR, "unable to allocate switch domain: %s", - strerror(rte_errno)); - goto error; - } - own_domain_id = 1; - } - /* Override some values set by hardware configuration. */ - mlx5_args(&config, dpdk_dev->devargs); - err = mlx5_dev_check_sibling_config(priv, &config); - if (err) - goto error; - config.hw_csum = !!(sh->device_attr.device_cap_flags_ex & - IBV_DEVICE_RAW_IP_CSUM); - DRV_LOG(DEBUG, "checksum offloading is %ssupported", - (config.hw_csum ? "" : "not ")); -#if !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) && \ - !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45) - DRV_LOG(DEBUG, "counters are not supported"); -#endif -#if !defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_MLX5DV_DR) - if (config.dv_flow_en) { - DRV_LOG(WARNING, "DV flow is not supported"); - config.dv_flow_en = 0; - } -#endif - config.ind_table_max_size = - sh->device_attr.max_rwq_indirection_table_size; - /* - * Remove this check once DPDK supports larger/variable - * indirection tables. - */ - if (config.ind_table_max_size > (unsigned int)ETH_RSS_RETA_SIZE_512) - config.ind_table_max_size = ETH_RSS_RETA_SIZE_512; - DRV_LOG(DEBUG, "maximum Rx indirection table size is %u", - config.ind_table_max_size); - config.hw_vlan_strip = !!(sh->device_attr.raw_packet_caps & - IBV_RAW_PACKET_CAP_CVLAN_STRIPPING); - DRV_LOG(DEBUG, "VLAN stripping is %ssupported", - (config.hw_vlan_strip ? "" : "not ")); - config.hw_fcs_strip = !!(sh->device_attr.raw_packet_caps & - IBV_RAW_PACKET_CAP_SCATTER_FCS); - DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported", - (config.hw_fcs_strip ? "" : "not ")); -#if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING) - hw_padding = !!sh->device_attr.rx_pad_end_addr_align; -#elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING) - hw_padding = !!(sh->device_attr.device_cap_flags_ex & - IBV_DEVICE_PCI_WRITE_END_PADDING); -#endif - if (config.hw_padding && !hw_padding) { - DRV_LOG(DEBUG, "Rx end alignment padding isn't supported"); - config.hw_padding = 0; - } else if (config.hw_padding) { - DRV_LOG(DEBUG, "Rx end alignment padding is enabled"); - } - config.tso = (sh->device_attr.max_tso > 0 && - (sh->device_attr.tso_supported_qpts & - (1 << IBV_QPT_RAW_PACKET))); - if (config.tso) - config.tso_max_payload_sz = sh->device_attr.max_tso; - /* - * MPW is disabled by default, while the Enhanced MPW is enabled - * by default. - */ - if (config.mps == MLX5_ARG_UNSET) - config.mps = (mps == MLX5_MPW_ENHANCED) ? MLX5_MPW_ENHANCED : - MLX5_MPW_DISABLED; - else - config.mps = config.mps ? mps : MLX5_MPW_DISABLED; - DRV_LOG(INFO, "%sMPS is %s", - config.mps == MLX5_MPW_ENHANCED ? "enhanced " : - config.mps == MLX5_MPW ? "legacy " : "", - config.mps != MLX5_MPW_DISABLED ? "enabled" : "disabled"); - if (config.cqe_comp && !cqe_comp) { - DRV_LOG(WARNING, "Rx CQE compression isn't supported"); - config.cqe_comp = 0; - } - if (config.cqe_pad && !cqe_pad) { - DRV_LOG(WARNING, "Rx CQE padding isn't supported"); - config.cqe_pad = 0; - } else if (config.cqe_pad) { - DRV_LOG(INFO, "Rx CQE padding is enabled"); - } - if (config.devx) { - priv->counter_fallback = 0; - err = mlx5_devx_cmd_query_hca_attr(sh->ctx, &config.hca_attr); - if (err) { - err = -err; - goto error; - } - if (!config.hca_attr.flow_counters_dump) - priv->counter_fallback = 1; -#ifndef HAVE_IBV_DEVX_ASYNC - priv->counter_fallback = 1; -#endif - if (priv->counter_fallback) - DRV_LOG(INFO, "Use fall-back DV counter management"); - /* Check for LRO support. */ - if (config.dest_tir && config.hca_attr.lro_cap && - config.dv_flow_en) { - /* TBD check tunnel lro caps. */ - config.lro.supported = config.hca_attr.lro_cap; - DRV_LOG(DEBUG, "Device supports LRO"); - /* - * If LRO timeout is not configured by application, - * use the minimal supported value. - */ - if (!config.lro.timeout) - config.lro.timeout = - config.hca_attr.lro_timer_supported_periods[0]; - DRV_LOG(DEBUG, "LRO session timeout set to %d usec", - config.lro.timeout); - } -#if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER) - if (config.hca_attr.qos.sup && config.hca_attr.qos.srtcm_sup && - config.dv_flow_en) { - uint8_t reg_c_mask = - config.hca_attr.qos.flow_meter_reg_c_ids; - /* - * Meter needs two REG_C's for color match and pre-sfx - * flow match. Here get the REG_C for color match. - * REG_C_0 and REG_C_1 is reserved for metadata feature. - */ - reg_c_mask &= 0xfc; - if (__builtin_popcount(reg_c_mask) < 1) { - priv->mtr_en = 0; - DRV_LOG(WARNING, "No available register for" - " meter."); - } else { - priv->mtr_color_reg = ffs(reg_c_mask) - 1 + - REG_C_0; - priv->mtr_en = 1; - priv->mtr_reg_share = - config.hca_attr.qos.flow_meter_reg_share; - DRV_LOG(DEBUG, "The REG_C meter uses is %d", - priv->mtr_color_reg); - } - } -#endif - } - if (config.mprq.enabled && mprq) { - if (config.mprq.stride_num_n && - (config.mprq.stride_num_n > mprq_max_stride_num_n || - config.mprq.stride_num_n < mprq_min_stride_num_n)) { - config.mprq.stride_num_n = - RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N, - mprq_min_stride_num_n), - mprq_max_stride_num_n); - DRV_LOG(WARNING, - "the number of strides" - " for Multi-Packet RQ is out of range," - " setting default value (%u)", - 1 << config.mprq.stride_num_n); - } - if (config.mprq.stride_size_n && - (config.mprq.stride_size_n > mprq_max_stride_size_n || - config.mprq.stride_size_n < mprq_min_stride_size_n)) { - config.mprq.stride_size_n = - RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_SIZE_N, - mprq_min_stride_size_n), - mprq_max_stride_size_n); - DRV_LOG(WARNING, - "the size of a stride" - " for Multi-Packet RQ is out of range," - " setting default value (%u)", - 1 << config.mprq.stride_size_n); - } - config.mprq.min_stride_size_n = mprq_min_stride_size_n; - config.mprq.max_stride_size_n = mprq_max_stride_size_n; - } else if (config.mprq.enabled && !mprq) { - DRV_LOG(WARNING, "Multi-Packet RQ isn't supported"); - config.mprq.enabled = 0; - } - if (config.max_dump_files_num == 0) - config.max_dump_files_num = 128; - eth_dev = rte_eth_dev_allocate(name); - if (eth_dev == NULL) { - DRV_LOG(ERR, "can not allocate rte ethdev"); - err = ENOMEM; - goto error; - } - /* Flag to call rte_eth_dev_release_port() in rte_eth_dev_close(). */ - eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE; - if (priv->representor) { - eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR; - eth_dev->data->representor_id = priv->representor_id; - } - /* - * Store associated network device interface index. This index - * is permanent throughout the lifetime of device. So, we may store - * the ifindex here and use the cached value further. - */ - MLX5_ASSERT(spawn->ifindex); - priv->if_index = spawn->ifindex; - eth_dev->data->dev_private = priv; - priv->dev_data = eth_dev->data; - eth_dev->data->mac_addrs = priv->mac; - eth_dev->device = dpdk_dev; - /* Configure the first MAC address by default. */ - if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) { - DRV_LOG(ERR, - "port %u cannot get MAC address, is mlx5_en" - " loaded? (errno: %s)", - eth_dev->data->port_id, strerror(rte_errno)); - err = ENODEV; - goto error; - } - DRV_LOG(INFO, - "port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x", - eth_dev->data->port_id, - mac.addr_bytes[0], mac.addr_bytes[1], - mac.addr_bytes[2], mac.addr_bytes[3], - mac.addr_bytes[4], mac.addr_bytes[5]); -#ifdef RTE_LIBRTE_MLX5_DEBUG - { - char ifname[IF_NAMESIZE]; - - if (mlx5_get_ifname(eth_dev, &ifname) == 0) - DRV_LOG(DEBUG, "port %u ifname is \"%s\"", - eth_dev->data->port_id, ifname); - else - DRV_LOG(DEBUG, "port %u ifname is unknown", - eth_dev->data->port_id); - } -#endif - /* Get actual MTU if possible. */ - err = mlx5_get_mtu(eth_dev, &priv->mtu); - if (err) { - err = rte_errno; - goto error; - } - DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id, - priv->mtu); - /* Initialize burst functions to prevent crashes before link-up. */ - eth_dev->rx_pkt_burst = removed_rx_burst; - eth_dev->tx_pkt_burst = removed_tx_burst; - eth_dev->dev_ops = &mlx5_dev_ops; - /* Register MAC address. */ - claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0)); - if (config.vf && config.vf_nl_en) - mlx5_nl_mac_addr_sync(priv->nl_socket_route, - mlx5_ifindex(eth_dev), - eth_dev->data->mac_addrs, - MLX5_MAX_MAC_ADDRESSES); - priv->flows = 0; - priv->ctrl_flows = 0; - TAILQ_INIT(&priv->flow_meters); - TAILQ_INIT(&priv->flow_meter_profiles); - /* Hint libmlx5 to use PMD allocator for data plane resources */ - struct mlx5dv_ctx_allocators alctr = { - .alloc = &mlx5_alloc_verbs_buf, - .free = &mlx5_free_verbs_buf, - .data = priv, - }; - mlx5_glue->dv_set_context_attr(sh->ctx, - MLX5DV_CTX_ATTR_BUF_ALLOCATORS, - (void *)((uintptr_t)&alctr)); - /* Bring Ethernet device up. */ - DRV_LOG(DEBUG, "port %u forcing Ethernet interface up", - eth_dev->data->port_id); - mlx5_set_link_up(eth_dev); - /* - * Even though the interrupt handler is not installed yet, - * interrupts will still trigger on the async_fd from - * Verbs context returned by ibv_open_device(). - */ - mlx5_link_update(eth_dev, 0); -#ifdef HAVE_MLX5DV_DR_ESWITCH - if (!(config.hca_attr.eswitch_manager && config.dv_flow_en && - (switch_info->representor || switch_info->master))) - config.dv_esw_en = 0; -#else - config.dv_esw_en = 0; -#endif - /* Detect minimal data bytes to inline. */ - mlx5_set_min_inline(spawn, &config); - /* Store device configuration on private structure. */ - priv->config = config; - /* Create context for virtual machine VLAN workaround. */ - priv->vmwa_context = mlx5_vlan_vmwa_init(eth_dev, spawn->ifindex); - if (config.dv_flow_en) { - err = mlx5_alloc_shared_dr(priv); - if (err) - goto error; - /* - * RSS id is shared with meter flow id. Meter flow id can only - * use the 24 MSB of the register. - */ - priv->qrss_id_pool = mlx5_flow_id_pool_alloc(UINT32_MAX >> - MLX5_MTR_COLOR_BITS); - if (!priv->qrss_id_pool) { - DRV_LOG(ERR, "can't create flow id pool"); - err = ENOMEM; - goto error; - } - } - /* Supported Verbs flow priority number detection. */ - err = mlx5_flow_discover_priorities(eth_dev); - if (err < 0) { - err = -err; - goto error; - } - priv->config.flow_prio = err; - if (!priv->config.dv_esw_en && - priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) { - DRV_LOG(WARNING, "metadata mode %u is not supported " - "(no E-Switch)", priv->config.dv_xmeta_en); - priv->config.dv_xmeta_en = MLX5_XMETA_MODE_LEGACY; - } - mlx5_set_metadata_mask(eth_dev); - if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY && - !priv->sh->dv_regc0_mask) { - DRV_LOG(ERR, "metadata mode %u is not supported " - "(no metadata reg_c[0] is available)", - priv->config.dv_xmeta_en); - err = ENOTSUP; - goto error; - } - /* - * Allocate the buffer for flow creating, just once. - * The allocation must be done before any flow creating. - */ - mlx5_flow_alloc_intermediate(eth_dev); - /* Query availibility of metadata reg_c's. */ - err = mlx5_flow_discover_mreg_c(eth_dev); - if (err < 0) { - err = -err; - goto error; - } - if (!mlx5_flow_ext_mreg_supported(eth_dev)) { - DRV_LOG(DEBUG, - "port %u extensive metadata register is not supported", - eth_dev->data->port_id); - if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) { - DRV_LOG(ERR, "metadata mode %u is not supported " - "(no metadata registers available)", - priv->config.dv_xmeta_en); - err = ENOTSUP; - goto error; - } - } - if (priv->config.dv_flow_en && - priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY && - mlx5_flow_ext_mreg_supported(eth_dev) && - priv->sh->dv_regc0_mask) { - priv->mreg_cp_tbl = mlx5_hlist_create(MLX5_FLOW_MREG_HNAME, - MLX5_FLOW_MREG_HTABLE_SZ); - if (!priv->mreg_cp_tbl) { - err = ENOMEM; - goto error; - } - } - return eth_dev; -error: - if (priv) { - if (priv->mreg_cp_tbl) - mlx5_hlist_destroy(priv->mreg_cp_tbl, NULL, NULL); - if (priv->sh) - mlx5_free_shared_dr(priv); - if (priv->nl_socket_route >= 0) - close(priv->nl_socket_route); - if (priv->nl_socket_rdma >= 0) - close(priv->nl_socket_rdma); - if (priv->vmwa_context) - mlx5_vlan_vmwa_exit(priv->vmwa_context); - if (priv->qrss_id_pool) - mlx5_flow_id_pool_release(priv->qrss_id_pool); - if (own_domain_id) - claim_zero(rte_eth_switch_domain_free(priv->domain_id)); - rte_free(priv); - if (eth_dev != NULL) - eth_dev->data->dev_private = NULL; - } - if (eth_dev != NULL) { - /* mac_addrs must not be freed alone because part of dev_private */ - eth_dev->data->mac_addrs = NULL; - rte_eth_dev_release_port(eth_dev); - } - if (sh) - mlx5_free_shared_ibctx(sh); - MLX5_ASSERT(err > 0); - rte_errno = err; - return NULL; -} - -/** - * Comparison callback to sort device data. - * - * This is meant to be used with qsort(). - * - * @param a[in] - * Pointer to pointer to first data object. - * @param b[in] - * Pointer to pointer to second data object. - * - * @return - * 0 if both objects are equal, less than 0 if the first argument is less - * than the second, greater than 0 otherwise. - */ -static int -mlx5_dev_spawn_data_cmp(const void *a, const void *b) -{ - const struct mlx5_switch_info *si_a = - &((const struct mlx5_dev_spawn_data *)a)->info; - const struct mlx5_switch_info *si_b = - &((const struct mlx5_dev_spawn_data *)b)->info; - int ret; - - /* Master device first. */ - ret = si_b->master - si_a->master; - if (ret) - return ret; - /* Then representor devices. */ - ret = si_b->representor - si_a->representor; - if (ret) - return ret; - /* Unidentified devices come last in no specific order. */ - if (!si_a->representor) - return 0; - /* Order representors by name. */ - return si_a->port_name - si_b->port_name; -} - -/** - * Match PCI information for possible slaves of bonding device. - * - * @param[in] ibv_dev - * Pointer to Infiniband device structure. - * @param[in] pci_dev - * Pointer to PCI device structure to match PCI address. - * @param[in] nl_rdma - * Netlink RDMA group socket handle. - * - * @return - * negative value if no bonding device found, otherwise - * positive index of slave PF in bonding. - */ -static int -mlx5_device_bond_pci_match(const struct ibv_device *ibv_dev, - const struct rte_pci_device *pci_dev, - int nl_rdma) -{ - char ifname[IF_NAMESIZE + 1]; - unsigned int ifindex; - unsigned int np, i; - FILE *file = NULL; - int pf = -1; - - /* - * Try to get master device name. If something goes - * wrong suppose the lack of kernel support and no - * bonding devices. - */ - if (nl_rdma < 0) - return -1; - if (!strstr(ibv_dev->name, "bond")) - return -1; - np = mlx5_nl_portnum(nl_rdma, ibv_dev->name); - if (!np) - return -1; - /* - * The Master device might not be on the predefined - * port (not on port index 1, it is not garanted), - * we have to scan all Infiniband device port and - * find master. - */ - for (i = 1; i <= np; ++i) { - /* Check whether Infiniband port is populated. */ - ifindex = mlx5_nl_ifindex(nl_rdma, ibv_dev->name, i); - if (!ifindex) - continue; - if (!if_indextoname(ifindex, ifname)) - continue; - /* Try to read bonding slave names from sysfs. */ - MKSTR(slaves, - "/sys/class/net/%s/master/bonding/slaves", ifname); - file = fopen(slaves, "r"); - if (file) - break; - } - if (!file) - return -1; - /* Use safe format to check maximal buffer length. */ - MLX5_ASSERT(atol(RTE_STR(IF_NAMESIZE)) == IF_NAMESIZE); - while (fscanf(file, "%" RTE_STR(IF_NAMESIZE) "s", ifname) == 1) { - char tmp_str[IF_NAMESIZE + 32]; - struct rte_pci_addr pci_addr; - struct mlx5_switch_info info; - - /* Process slave interface names in the loop. */ - snprintf(tmp_str, sizeof(tmp_str), - "/sys/class/net/%s", ifname); - if (mlx5_dev_to_pci_addr(tmp_str, &pci_addr)) { - DRV_LOG(WARNING, "can not get PCI address" - " for netdev \"%s\"", ifname); - continue; - } - if (pci_dev->addr.domain != pci_addr.domain || - pci_dev->addr.bus != pci_addr.bus || - pci_dev->addr.devid != pci_addr.devid || - pci_dev->addr.function != pci_addr.function) - continue; - /* Slave interface PCI address match found. */ - fclose(file); - snprintf(tmp_str, sizeof(tmp_str), - "/sys/class/net/%s/phys_port_name", ifname); - file = fopen(tmp_str, "rb"); - if (!file) - break; - info.name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET; - if (fscanf(file, "%32s", tmp_str) == 1) - mlx5_translate_port_name(tmp_str, &info); - if (info.name_type == MLX5_PHYS_PORT_NAME_TYPE_LEGACY || - info.name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK) - pf = info.port_name; - break; - } - if (file) - fclose(file); - return pf; -} - -/** - * DPDK callback to register a PCI device. - * - * This function spawns Ethernet devices out of a given PCI device. - * - * @param[in] pci_drv - * PCI driver structure (mlx5_driver). - * @param[in] pci_dev - * PCI device information. - * - * @return - * 0 on success, a negative errno value otherwise and rte_errno is set. - */ -static int -mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused, - struct rte_pci_device *pci_dev) -{ - struct ibv_device **ibv_list; - /* - * Number of found IB Devices matching with requested PCI BDF. - * nd != 1 means there are multiple IB devices over the same - * PCI device and we have representors and master. - */ - unsigned int nd = 0; - /* - * Number of found IB device Ports. nd = 1 and np = 1..n means - * we have the single multiport IB device, and there may be - * representors attached to some of found ports. - */ - unsigned int np = 0; - /* - * Number of DPDK ethernet devices to Spawn - either over - * multiple IB devices or multiple ports of single IB device. - * Actually this is the number of iterations to spawn. - */ - unsigned int ns = 0; - /* - * Bonding device - * < 0 - no bonding device (single one) - * >= 0 - bonding device (value is slave PF index) - */ - int bd = -1; - struct mlx5_dev_spawn_data *list = NULL; - struct mlx5_dev_config dev_config; - int ret; - - if (mlx5_class_get(pci_dev->device.devargs) != MLX5_CLASS_NET) { - DRV_LOG(DEBUG, "Skip probing - should be probed by other mlx5" - " driver."); - return 1; - } - if (rte_eal_process_type() == RTE_PROC_PRIMARY) - mlx5_pmd_socket_init(); - ret = mlx5_init_once(); - if (ret) { - DRV_LOG(ERR, "unable to init PMD global data: %s", - strerror(rte_errno)); - return -rte_errno; - } - MLX5_ASSERT(pci_drv == &mlx5_driver); - errno = 0; - ibv_list = mlx5_glue->get_device_list(&ret); - if (!ibv_list) { - rte_errno = errno ? errno : ENOSYS; - DRV_LOG(ERR, "cannot list devices, is ib_uverbs loaded?"); - return -rte_errno; - } - /* - * First scan the list of all Infiniband devices to find - * matching ones, gathering into the list. - */ - struct ibv_device *ibv_match[ret + 1]; - int nl_route = mlx5_nl_init(NETLINK_ROUTE); - int nl_rdma = mlx5_nl_init(NETLINK_RDMA); - unsigned int i; - - while (ret-- > 0) { - struct rte_pci_addr pci_addr; - - DRV_LOG(DEBUG, "checking device \"%s\"", ibv_list[ret]->name); - bd = mlx5_device_bond_pci_match - (ibv_list[ret], pci_dev, nl_rdma); - if (bd >= 0) { - /* - * Bonding device detected. Only one match is allowed, - * the bonding is supported over multi-port IB device, - * there should be no matches on representor PCI - * functions or non VF LAG bonding devices with - * specified address. - */ - if (nd) { - DRV_LOG(ERR, - "multiple PCI match on bonding device" - "\"%s\" found", ibv_list[ret]->name); - rte_errno = ENOENT; - ret = -rte_errno; - goto exit; - } - DRV_LOG(INFO, "PCI information matches for" - " slave %d bonding device \"%s\"", - bd, ibv_list[ret]->name); - ibv_match[nd++] = ibv_list[ret]; - break; - } - if (mlx5_dev_to_pci_addr - (ibv_list[ret]->ibdev_path, &pci_addr)) - continue; - if (pci_dev->addr.domain != pci_addr.domain || - pci_dev->addr.bus != pci_addr.bus || - pci_dev->addr.devid != pci_addr.devid || - pci_dev->addr.function != pci_addr.function) - continue; - DRV_LOG(INFO, "PCI information matches for device \"%s\"", - ibv_list[ret]->name); - ibv_match[nd++] = ibv_list[ret]; - } - ibv_match[nd] = NULL; - if (!nd) { - /* No device matches, just complain and bail out. */ - DRV_LOG(WARNING, - "no Verbs device matches PCI device " PCI_PRI_FMT "," - " are kernel drivers loaded?", - pci_dev->addr.domain, pci_dev->addr.bus, - pci_dev->addr.devid, pci_dev->addr.function); - rte_errno = ENOENT; - ret = -rte_errno; - goto exit; - } - if (nd == 1) { - /* - * Found single matching device may have multiple ports. - * Each port may be representor, we have to check the port - * number and check the representors existence. - */ - if (nl_rdma >= 0) - np = mlx5_nl_portnum(nl_rdma, ibv_match[0]->name); - if (!np) - DRV_LOG(WARNING, "can not get IB device \"%s\"" - " ports number", ibv_match[0]->name); - if (bd >= 0 && !np) { - DRV_LOG(ERR, "can not get ports" - " for bonding device"); - rte_errno = ENOENT; - ret = -rte_errno; - goto exit; - } - } -#ifndef HAVE_MLX5DV_DR_DEVX_PORT - if (bd >= 0) { - /* - * This may happen if there is VF LAG kernel support and - * application is compiled with older rdma_core library. - */ - DRV_LOG(ERR, - "No kernel/verbs support for VF LAG bonding found."); - rte_errno = ENOTSUP; - ret = -rte_errno; - goto exit; - } -#endif - /* - * Now we can determine the maximal - * amount of devices to be spawned. - */ - list = rte_zmalloc("device spawn data", - sizeof(struct mlx5_dev_spawn_data) * - (np ? np : nd), - RTE_CACHE_LINE_SIZE); - if (!list) { - DRV_LOG(ERR, "spawn data array allocation failure"); - rte_errno = ENOMEM; - ret = -rte_errno; - goto exit; - } - if (bd >= 0 || np > 1) { - /* - * Single IB device with multiple ports found, - * it may be E-Switch master device and representors. - * We have to perform identification through the ports. - */ - MLX5_ASSERT(nl_rdma >= 0); - MLX5_ASSERT(ns == 0); - MLX5_ASSERT(nd == 1); - MLX5_ASSERT(np); - for (i = 1; i <= np; ++i) { - list[ns].max_port = np; - list[ns].ibv_port = i; - list[ns].ibv_dev = ibv_match[0]; - list[ns].eth_dev = NULL; - list[ns].pci_dev = pci_dev; - list[ns].pf_bond = bd; - list[ns].ifindex = mlx5_nl_ifindex - (nl_rdma, list[ns].ibv_dev->name, i); - if (!list[ns].ifindex) { - /* - * No network interface index found for the - * specified port, it means there is no - * representor on this port. It's OK, - * there can be disabled ports, for example - * if sriov_numvfs < sriov_totalvfs. - */ - continue; - } - ret = -1; - if (nl_route >= 0) - ret = mlx5_nl_switch_info - (nl_route, - list[ns].ifindex, - &list[ns].info); - if (ret || (!list[ns].info.representor && - !list[ns].info.master)) { - /* - * We failed to recognize representors with - * Netlink, let's try to perform the task - * with sysfs. - */ - ret = mlx5_sysfs_switch_info - (list[ns].ifindex, - &list[ns].info); - } - if (!ret && bd >= 0) { - switch (list[ns].info.name_type) { - case MLX5_PHYS_PORT_NAME_TYPE_UPLINK: - if (list[ns].info.port_name == bd) - ns++; - break; - case MLX5_PHYS_PORT_NAME_TYPE_PFVF: - if (list[ns].info.pf_num == bd) - ns++; - break; - default: - break; - } - continue; - } - if (!ret && (list[ns].info.representor ^ - list[ns].info.master)) - ns++; - } - if (!ns) { - DRV_LOG(ERR, - "unable to recognize master/representors" - " on the IB device with multiple ports"); - rte_errno = ENOENT; - ret = -rte_errno; - goto exit; - } - } else { - /* - * The existence of several matching entries (nd > 1) means - * port representors have been instantiated. No existing Verbs - * call nor sysfs entries can tell them apart, this can only - * be done through Netlink calls assuming kernel drivers are - * recent enough to support them. - * - * In the event of identification failure through Netlink, - * try again through sysfs, then: - * - * 1. A single IB device matches (nd == 1) with single - * port (np=0/1) and is not a representor, assume - * no switch support. - * - * 2. Otherwise no safe assumptions can be made; - * complain louder and bail out. - */ - np = 1; - for (i = 0; i != nd; ++i) { - memset(&list[ns].info, 0, sizeof(list[ns].info)); - list[ns].max_port = 1; - list[ns].ibv_port = 1; - list[ns].ibv_dev = ibv_match[i]; - list[ns].eth_dev = NULL; - list[ns].pci_dev = pci_dev; - list[ns].pf_bond = -1; - list[ns].ifindex = 0; - if (nl_rdma >= 0) - list[ns].ifindex = mlx5_nl_ifindex - (nl_rdma, list[ns].ibv_dev->name, 1); - if (!list[ns].ifindex) { - char ifname[IF_NAMESIZE]; - - /* - * Netlink failed, it may happen with old - * ib_core kernel driver (before 4.16). - * We can assume there is old driver because - * here we are processing single ports IB - * devices. Let's try sysfs to retrieve - * the ifindex. The method works for - * master device only. - */ - if (nd > 1) { - /* - * Multiple devices found, assume - * representors, can not distinguish - * master/representor and retrieve - * ifindex via sysfs. - */ - continue; - } - ret = mlx5_get_master_ifname - (ibv_match[i]->ibdev_path, &ifname); - if (!ret) - list[ns].ifindex = - if_nametoindex(ifname); - if (!list[ns].ifindex) { - /* - * No network interface index found - * for the specified device, it means - * there it is neither representor - * nor master. - */ - continue; - } - } - ret = -1; - if (nl_route >= 0) - ret = mlx5_nl_switch_info - (nl_route, - list[ns].ifindex, - &list[ns].info); - if (ret || (!list[ns].info.representor && - !list[ns].info.master)) { - /* - * We failed to recognize representors with - * Netlink, let's try to perform the task - * with sysfs. - */ - ret = mlx5_sysfs_switch_info - (list[ns].ifindex, - &list[ns].info); - } - if (!ret && (list[ns].info.representor ^ - list[ns].info.master)) { - ns++; - } else if ((nd == 1) && - !list[ns].info.representor && - !list[ns].info.master) { - /* - * Single IB device with - * one physical port and - * attached network device. - * May be SRIOV is not enabled - * or there is no representors. - */ - DRV_LOG(INFO, "no E-Switch support detected"); - ns++; - break; - } - } - if (!ns) { - DRV_LOG(ERR, - "unable to recognize master/representors" - " on the multiple IB devices"); - rte_errno = ENOENT; - ret = -rte_errno; - goto exit; - } - } - MLX5_ASSERT(ns); - /* - * Sort list to probe devices in natural order for users convenience - * (i.e. master first, then representors from lowest to highest ID). - */ - qsort(list, ns, sizeof(*list), mlx5_dev_spawn_data_cmp); - /* Default configuration. */ - dev_config = (struct mlx5_dev_config){ - .hw_padding = 0, - .mps = MLX5_ARG_UNSET, - .dbnc = MLX5_ARG_UNSET, - .rx_vec_en = 1, - .txq_inline_max = MLX5_ARG_UNSET, - .txq_inline_min = MLX5_ARG_UNSET, - .txq_inline_mpw = MLX5_ARG_UNSET, - .txqs_inline = MLX5_ARG_UNSET, - .vf_nl_en = 1, - .mr_ext_memseg_en = 1, - .mprq = { - .enabled = 0, /* Disabled by default. */ - .stride_num_n = 0, - .stride_size_n = 0, - .max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN, - .min_rxqs_num = MLX5_MPRQ_MIN_RXQS, - }, - .dv_esw_en = 1, - .dv_flow_en = 1, - .log_hp_size = MLX5_ARG_UNSET, - }; - /* Device specific configuration. */ - switch (pci_dev->id.device_id) { - case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF: - case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF: - case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF: - case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF: - case PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF: - case PCI_DEVICE_ID_MELLANOX_CONNECTX6VF: - case PCI_DEVICE_ID_MELLANOX_CONNECTX6DXVF: - dev_config.vf = 1; - break; - default: - break; - } - for (i = 0; i != ns; ++i) { - uint32_t restore; - - list[i].eth_dev = mlx5_dev_spawn(&pci_dev->device, - &list[i], - dev_config); - if (!list[i].eth_dev) { - if (rte_errno != EBUSY && rte_errno != EEXIST) - break; - /* Device is disabled or already spawned. Ignore it. */ - continue; - } - restore = list[i].eth_dev->data->dev_flags; - rte_eth_copy_pci_info(list[i].eth_dev, pci_dev); - /* Restore non-PCI flags cleared by the above call. */ - list[i].eth_dev->data->dev_flags |= restore; - rte_eth_dev_probing_finish(list[i].eth_dev); - } - if (i != ns) { - DRV_LOG(ERR, - "probe of PCI device " PCI_PRI_FMT " aborted after" - " encountering an error: %s", - pci_dev->addr.domain, pci_dev->addr.bus, - pci_dev->addr.devid, pci_dev->addr.function, - strerror(rte_errno)); - ret = -rte_errno; - /* Roll back. */ - while (i--) { - if (!list[i].eth_dev) - continue; - mlx5_dev_close(list[i].eth_dev); - /* mac_addrs must not be freed because in dev_private */ - list[i].eth_dev->data->mac_addrs = NULL; - claim_zero(rte_eth_dev_release_port(list[i].eth_dev)); - } - /* Restore original error. */ - rte_errno = -ret; - } else { - ret = 0; - } -exit: - /* - * Do the routine cleanup: - * - close opened Netlink sockets - * - free allocated spawn data array - * - free the Infiniband device list - */ - if (nl_rdma >= 0) - close(nl_rdma); - if (nl_route >= 0) - close(nl_route); - if (list) - rte_free(list); - MLX5_ASSERT(ibv_list); - mlx5_glue->free_device_list(ibv_list); - return ret; -} /** * Look for the ethernet device belonging to mlx5 driver. @@ -3762,7 +1983,7 @@ exit: * @param[in] pci_dev * Pointer to the hint PCI device. When device is being probed * the its siblings (master and preceding representors might - * not have assigned driver yet (because the mlx5_pci_probe() + * not have assigned driver yet (because the mlx5_os_pci_probe() * is not completed yet, for this case match on hint PCI * device may be used to detect sibling device. * @@ -3884,12 +2105,12 @@ static const struct rte_pci_id mlx5_pci_id_map[] = { } }; -static struct rte_pci_driver mlx5_driver = { +struct rte_pci_driver mlx5_driver = { .driver = { .name = MLX5_DRIVER_NAME }, .id_table = mlx5_pci_id_map, - .probe = mlx5_pci_probe, + .probe = mlx5_os_pci_probe, .remove = mlx5_pci_remove, .dma_map = mlx5_dma_map, .dma_unmap = mlx5_dma_unmap, diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h index ec4ba87b81..f5d9aad2f4 100644 --- a/drivers/net/mlx5/mlx5.h +++ b/drivers/net/mlx5/mlx5.h @@ -94,6 +94,18 @@ struct mlx5_dev_attr { char fw_ver[64]; }; +/** Data associated with devices to spawn. */ +struct mlx5_dev_spawn_data { + uint32_t ifindex; /**< Network interface index. */ + uint32_t max_port; /**< IB device maximal port index. */ + uint32_t ibv_port; /**< IB device physical port index. */ + int pf_bond; /**< bonding device PF index. < 0 - no bonding */ + struct mlx5_switch_info info; /**< Switch information. */ + struct ibv_device *ibv_dev; /**< Associated IB device. */ + struct rte_eth_dev *eth_dev; /**< Associated Ethernet device. */ + struct rte_pci_device *pci_dev; /**< Backend PCI device. */ +}; + /** Key string for IPC. */ #define MLX5_MP_NAME "net_mlx5_mp" @@ -116,6 +128,11 @@ struct mlx5_local_data { }; extern struct mlx5_shared_data *mlx5_shared_data; +extern struct rte_pci_driver mlx5_driver; + +/* Dev ops structs */ +extern const struct eth_dev_ops mlx5_dev_sec_ops; +extern const struct eth_dev_ops mlx5_dev_ops; struct mlx5_counter_ctrl { /* Name of the counter. */ @@ -670,12 +687,26 @@ int32_t mlx5_release_dbr(struct rte_eth_dev *dev, uint32_t umem_id, int mlx5_udp_tunnel_port_add(struct rte_eth_dev *dev, struct rte_eth_udp_tunnel *udp_tunnel); uint16_t mlx5_eth_find_next(uint16_t port_id, struct rte_pci_device *pci_dev); +void mlx5_dev_close(struct rte_eth_dev *dev); /* Macro to iterate over all valid ports for mlx5 driver. */ #define MLX5_ETH_FOREACH_DEV(port_id, pci_dev) \ for (port_id = mlx5_eth_find_next(0, pci_dev); \ port_id < RTE_MAX_ETHPORTS; \ port_id = mlx5_eth_find_next(port_id + 1, pci_dev)) +int mlx5_args(struct mlx5_dev_config *config, struct rte_devargs *devargs); +struct mlx5_dev_ctx_shared * +mlx5_alloc_shared_ibctx(const struct mlx5_dev_spawn_data *spawn, + const struct mlx5_dev_config *config); +void mlx5_free_shared_ibctx(struct mlx5_dev_ctx_shared *sh); +void mlx5_free_table_hash_list(struct mlx5_priv *priv); +int mlx5_alloc_table_hash_list(struct mlx5_priv *priv); +void mlx5_set_min_inline(struct mlx5_dev_spawn_data *spawn, + struct mlx5_dev_config *config); +void mlx5_set_metadata_mask(struct rte_eth_dev *dev); +int mlx5_dev_check_sibling_config(struct mlx5_priv *priv, + struct mlx5_dev_config *config); +int mlx5_init_once(void); /* mlx5_ethdev.c */ @@ -876,9 +907,18 @@ struct mlx5_flow_meter *mlx5_flow_meter_attach void mlx5_flow_meter_detach(struct mlx5_flow_meter *fm); /* mlx5_os.c */ +struct rte_pci_driver; const char *mlx5_os_get_ctx_device_name(void *ctx); const char *mlx5_os_get_ctx_device_path(void *ctx); uint32_t mlx5_os_get_umem_id(void *umem); int mlx5_os_get_dev_attr(void *ctx, struct mlx5_dev_attr *dev_attr); - +void mlx5_os_free_shared_dr(struct mlx5_priv *priv); +int mlx5_os_open_device(const struct mlx5_dev_spawn_data *spawn, + const struct mlx5_dev_config *config, + struct mlx5_dev_ctx_shared *sh); +int mlx5_os_get_pdn(void *pd, uint32_t *pdn); +int mlx5_os_pci_probe(struct rte_pci_driver *pci_drv __rte_unused, + struct rte_pci_device *pci_dev); +void mlx5_os_dev_shared_handler_install(struct mlx5_dev_ctx_shared *sh); +void mlx5_os_dev_shared_handler_uninstall(struct mlx5_dev_ctx_shared *sh); #endif /* RTE_PMD_MLX5_H_ */ -- 2.20.1