From patchwork Thu Jul 5 08:45:33 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adrien Mazarguil X-Patchwork-Id: 42306 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id E93901C392; Thu, 5 Jul 2018 10:45:51 +0200 (CEST) Received: from mail-wr1-f49.google.com (mail-wr1-f49.google.com [209.85.221.49]) by dpdk.org (Postfix) with ESMTP id EC7A21C38F for ; Thu, 5 Jul 2018 10:45:50 +0200 (CEST) Received: by mail-wr1-f49.google.com with SMTP id h10-v6so739268wre.6 for ; Thu, 05 Jul 2018 01:45:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=6wind-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=DmREd05I1V0ABxeZRbzLBJH+y7fOYJDLHEFO/UKDYhU=; b=Yg/rXh6DoHf/RW3EslQ9raYt0bUUDz7L0gGbD1eJMyicGH9tcgYJw7mMWh3JGGEyX6 nE7ogNvodsJFOTrIqoO9n439QRNrDZ6Xpa5toY3P8i5l7Cg6OOOkUM3Ejhy/8WwjRCXB yADuRt820UxxQzPAFhFH9y4arVMi2V+xKQ6P/YAd6FZtKIumi9zzf96O4+/UFh/Q7Ok5 5J0cdIaOWD8vfsVxUO9t9xYSLskXfDfdSUK3UhGH3AVUiP4Qr44gW4FWLqBlDK29w0dD hk1kWYp5zL306BkwB9tOEyCs1JoVJbFo+k/vWaRSzdiXwtG8aTTru+Uzu8pNykPJkYO4 k4cA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=DmREd05I1V0ABxeZRbzLBJH+y7fOYJDLHEFO/UKDYhU=; b=uQuey7HnXb5xudoAZTNEBSl5TuJbhsjTrCYYyhD6kAlFrcQQXkQJGNS9+EOWPndPzA 79/xMoOinmOtox/wHglErzlgd4IA7On1MJrbbJJkpFcc8y4vad9OV7AV4w1j7HimEKho jH/P2XuvmrFcnbymLq27kacbNQGkOLgxGVZDI5v8Y7pMivFTQFE8UNOAJnUrAttubaLY z1RP880pzyXqcMhBqcIXEcpeJu8rGtAqokfq6/rfi9SK9k501x9DmZwNOFnlF4sRW+T2 a/X/z04D9hgVNJ2ZQDROYoDvyZM7oxV5Whk9sTyM+WJWkiEtKi0Vf3Rf9AxAYWArGSab KyLw== X-Gm-Message-State: APt69E31A2NyUWSOr6NXiOTbviZ2gDzk7XKHjSVwtWFqcZTQynuedap5 fCxJyYrMnzE4dZFhP0WEj5iHrC9W X-Google-Smtp-Source: AAOMgpexDW65GT0h8TYJWpBV9BaQD1oiqgD6tEU/gHG777rrTnL5jTNahcE9+RewfWnnFZEKaRgdxg== X-Received: by 2002:a5d:6550:: with SMTP id z16-v6mr3701920wrv.194.1530780350363; Thu, 05 Jul 2018 01:45:50 -0700 (PDT) Received: from 6wind.com (host.78.145.23.62.rev.coltfrance.com. [62.23.145.78]) by smtp.gmail.com with ESMTPSA id z9-v6sm10765524wre.49.2018.07.05.01.45.49 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 05 Jul 2018 01:45:49 -0700 (PDT) Date: Thu, 5 Jul 2018 10:45:33 +0200 From: Adrien Mazarguil To: Shahaf Shuler Cc: dev@dpdk.org Message-ID: <20180705083934.5535-6-adrien.mazarguil@6wind.com> References: <20180704172322.22571-1-adrien.mazarguil@6wind.com> <20180705083934.5535-1-adrien.mazarguil@6wind.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20180705083934.5535-1-adrien.mazarguil@6wind.com> X-Mailer: git-send-email 2.11.0 Subject: [dpdk-dev] [PATCH v4 05/10] net/mlx5: re-indent generic probing function X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Since commit "net/mlx5: drop useless support for several Verbs ports" removed an inner loop, mlx5_dev_spawn() is left with an unnecessary indent level. This patch eliminates a block, moves its local variables to function scope, and re-indents its contents (diff best viewed with --ignore-all-space). No functional impact. Signed-off-by: Adrien Mazarguil Reviewed-by: Xueming(Steven) Li --- v3 changes: - Reworded commit log since original patch was modified. This patch is also much shorter as a consequence. --- drivers/net/mlx5/mlx5.c | 578 +++++++++++++++++++++---------------------- 1 file changed, 282 insertions(+), 296 deletions(-) diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index 8916d4684..1054bf6d0 100644 --- a/drivers/net/mlx5/mlx5.c +++ b/drivers/net/mlx5/mlx5.c @@ -656,8 +656,25 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev, { struct ibv_context *ctx; struct ibv_device_attr_ex attr; + struct ibv_port_attr port_attr; struct ibv_pd *pd = NULL; struct mlx5dv_context dv_attr = { .comp_mask = 0 }; + struct mlx5_dev_config config = { + .vf = !!vf, + .tx_vec_en = 1, + .rx_vec_en = 1, + .mpw_hdr_dseg = 0, + .txq_inline = MLX5_ARG_UNSET, + .txqs_inline = MLX5_ARG_UNSET, + .inline_max_packet_sz = MLX5_ARG_UNSET, + .vf_nl_en = 1, + .mprq = { + .enabled = 0, + .stride_num_n = MLX5_MPRQ_STRIDE_NUM_N, + .max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN, + .min_rxqs_num = MLX5_MPRQ_MIN_RXQS, + }, + }; struct rte_eth_dev *eth_dev = NULL; struct priv *priv = NULL; int err = 0; @@ -675,6 +692,8 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev, #ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT struct ibv_counter_set_description cs_desc = { .counter_type = 0 }; #endif + struct ether_addr mac; + char name[RTE_ETH_NAME_MAX_LEN]; /* Prepare shared data between primary and secondary process. */ mlx5_prepare_shared_data(); @@ -710,11 +729,13 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev, DRV_LOG(DEBUG, "MPW isn't supported"); mps = MLX5_MPW_DISABLED; } + config.mps = mps; #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 = @@ -740,6 +761,8 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev, mprq_caps.min_single_wqe_log_num_of_strides; mprq_max_stride_num_n = mprq_caps.max_single_wqe_log_num_of_strides; + config.mprq.stride_num_n = RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N, + mprq_min_stride_num_n); } #endif if (RTE_CACHE_LINE_SIZE == 128 && @@ -747,6 +770,7 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev, cqe_comp = 0; else cqe_comp = 1; + config.cqe_comp = cqe_comp; #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) { tunnel_en = ((dv_attr.tunnel_offloads_caps & @@ -760,6 +784,7 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev, 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) && @@ -771,326 +796,287 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev, 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; err = mlx5_glue->query_device_ex(ctx, NULL, &attr); if (err) { DEBUG("ibv_query_device_ex() failed"); goto error; } - { - char name[RTE_ETH_NAME_MAX_LEN]; - struct ibv_port_attr port_attr; - struct ether_addr mac; - struct mlx5_dev_config config = { - .cqe_comp = cqe_comp, - .mps = mps, - .tunnel_en = tunnel_en, - .mpls_en = mpls_en, - .tx_vec_en = 1, - .rx_vec_en = 1, - .mpw_hdr_dseg = 0, - .txq_inline = MLX5_ARG_UNSET, - .txqs_inline = MLX5_ARG_UNSET, - .inline_max_packet_sz = MLX5_ARG_UNSET, - .vf_nl_en = 1, - .swp = !!swp, - .mprq = { - .enabled = 0, /* Disabled by default. */ - .stride_num_n = RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N, - mprq_min_stride_num_n), - .max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN, - .min_rxqs_num = MLX5_MPRQ_MIN_RXQS, - }, - }; - - rte_strlcpy(name, dpdk_dev->name, sizeof(name)); - if (rte_eal_process_type() == RTE_PROC_SECONDARY) { - eth_dev = rte_eth_dev_attach_secondary(name); - if (eth_dev == NULL) { - DRV_LOG(ERR, "can not attach rte ethdev"); - rte_errno = ENOMEM; - err = rte_errno; - goto error; - } - eth_dev->device = dpdk_dev; - eth_dev->dev_ops = &mlx5_dev_sec_ops; - err = mlx5_uar_init_secondary(eth_dev); - if (err) { - err = rte_errno; - goto error; - } - /* Receive command fd from primary process */ - err = mlx5_socket_connect(eth_dev); - if (err < 0) { - err = rte_errno; - goto error; - } - /* Remap UAR for Tx queues. */ - err = mlx5_tx_uar_remap(eth_dev, err); - if (err) { - err = rte_errno; - goto error; - } - /* - * 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); - claim_zero(mlx5_glue->close_device(ctx)); - return eth_dev; - } - /* Check port status. */ - err = mlx5_glue->query_port(ctx, 1, &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 protection domain. */ - pd = mlx5_glue->alloc_pd(ctx); - if (pd == NULL) { - DRV_LOG(ERR, "PD allocation failure"); - err = ENOMEM; - goto error; - } - /* from rte_ethdev.c */ - 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->ctx = ctx; - strncpy(priv->ibdev_path, priv->ctx->device->ibdev_path, - sizeof(priv->ibdev_path)); - priv->device_attr = attr; - priv->pd = pd; - priv->mtu = ETHER_MTU; - 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; - } - config.hw_csum = !!(attr.device_cap_flags_ex & - IBV_DEVICE_RAW_IP_CSUM); - DRV_LOG(DEBUG, "checksum offloading is %ssupported", - (config.hw_csum ? "" : "not ")); -#ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT - config.flow_counter_en = !!attr.max_counter_sets; - mlx5_glue->describe_counter_set(ctx, 0, &cs_desc); - DRV_LOG(DEBUG, - "counter type = %d, num of cs = %ld, attributes = %d", - cs_desc.counter_type, cs_desc.num_of_cs, - cs_desc.attributes); -#endif - config.ind_table_max_size = - attr.rss_caps.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 = !!(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 = !!(attr.raw_packet_caps & - IBV_RAW_PACKET_CAP_SCATTER_FCS); - DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported", - (config.hw_fcs_strip ? "" : "not ")); - -#ifdef HAVE_IBV_WQ_FLAG_RX_END_PADDING - config.hw_padding = !!attr.rx_pad_end_addr_align; -#endif - DRV_LOG(DEBUG, - "hardware Rx end alignment padding is %ssupported", - (config.hw_padding ? "" : "not ")); - config.vf = vf; - config.tso = (attr.tso_caps.max_tso > 0 && - (attr.tso_caps.supported_qpts & - (1 << IBV_QPT_RAW_PACKET))); - if (config.tso) - config.tso_max_payload_sz = attr.tso_caps.max_tso; - if (config.mps && !mps) { - DRV_LOG(ERR, - "multi-packet send not supported on this device" - " (" MLX5_TXQ_MPW_EN ")"); - err = ENOTSUP; - goto error; - } - DRV_LOG(INFO, "%s MPS is %s", - config.mps == MLX5_MPW_ENHANCED ? "enhanced " : "", - 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.mprq.enabled && mprq) { - if (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_MAX(MLX5_MPRQ_STRIDE_NUM_N, - mprq_min_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); - } - 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; - } - eth_dev = rte_eth_dev_allocate(name); + rte_strlcpy(name, dpdk_dev->name, sizeof(name)); + if (rte_eal_process_type() == RTE_PROC_SECONDARY) { + eth_dev = rte_eth_dev_attach_secondary(name); if (eth_dev == NULL) { - DRV_LOG(ERR, "can not allocate rte ethdev"); - err = ENOMEM; + DRV_LOG(ERR, "can not attach rte ethdev"); + rte_errno = ENOMEM; + err = rte_errno; goto error; } - eth_dev->data->dev_private = priv; - priv->dev_data = eth_dev->data; - eth_dev->data->mac_addrs = priv->mac; eth_dev->device = dpdk_dev; - eth_dev->device->driver = &mlx5_driver.driver; - err = mlx5_uar_init_primary(eth_dev); + eth_dev->dev_ops = &mlx5_dev_sec_ops; + err = mlx5_uar_init_secondary(eth_dev); if (err) { err = rte_errno; goto error; } - /* 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]); -#ifndef NDEBUG - { - 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) { + /* Receive command fd from primary process */ + err = mlx5_socket_connect(eth_dev); + if (err < 0) { 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)); - priv->nl_socket = -1; - priv->nl_sn = 0; - if (vf && config.vf_nl_en) { - priv->nl_socket = mlx5_nl_init(RTMGRP_LINK); - if (priv->nl_socket < 0) - priv->nl_socket = -1; - mlx5_nl_mac_addr_sync(eth_dev); - } - TAILQ_INIT(&priv->flows); - TAILQ_INIT(&priv->ctrl_flows); - /* 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(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 asyn_fd from - * Verbs context returned by ibv_open_device(). - */ - mlx5_link_update(eth_dev, 0); - /* Store device configuration on private structure. */ - priv->config = config; - /* Create drop queue. */ - err = mlx5_flow_create_drop_queue(eth_dev); + /* Remap UAR for Tx queues. */ + err = mlx5_tx_uar_remap(eth_dev, err); if (err) { - DRV_LOG(ERR, "port %u drop queue allocation failed: %s", - eth_dev->data->port_id, strerror(rte_errno)); err = rte_errno; goto error; } - /* Supported Verbs flow priority number detection. */ - if (verb_priorities == 0) - verb_priorities = mlx5_get_max_verbs_prio(eth_dev); - if (verb_priorities < MLX5_VERBS_FLOW_PRIO_8) { - DRV_LOG(ERR, "port %u wrong Verbs flow priorities: %u", - eth_dev->data->port_id, verb_priorities); - err = ENOTSUP; - goto error; - } - priv->config.max_verbs_prio = verb_priorities; /* - * Once the device is added to the list of memory event - * callback, its global MR cache table cannot be expanded - * on the fly because of deadlock. If it overflows, lookup - * should be done by searching MR list linearly, which is slow. + * Ethdev pointer is still required as input since + * the primary device is not accessible from the + * secondary process. */ - err = mlx5_mr_btree_init(&priv->mr.cache, - MLX5_MR_BTREE_CACHE_N * 2, - eth_dev->device->numa_node); - if (err) { - err = rte_errno; - goto error; - } - /* Add device to memory callback list. */ - rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock); - LIST_INSERT_HEAD(&mlx5_shared_data->mem_event_cb_list, - priv, mem_event_cb); - rte_rwlock_write_unlock(&mlx5_shared_data->mem_event_rwlock); - rte_eth_dev_probing_finish(eth_dev); + eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev); + eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev); + claim_zero(mlx5_glue->close_device(ctx)); return eth_dev; } + /* Check port status. */ + err = mlx5_glue->query_port(ctx, 1, &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 protection domain. */ + pd = mlx5_glue->alloc_pd(ctx); + if (pd == NULL) { + DRV_LOG(ERR, "PD allocation failure"); + err = ENOMEM; + goto error; + } + 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->ctx = ctx; + strncpy(priv->ibdev_path, priv->ctx->device->ibdev_path, + sizeof(priv->ibdev_path)); + priv->device_attr = attr; + priv->pd = pd; + priv->mtu = ETHER_MTU; + 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; + } + config.hw_csum = !!(attr.device_cap_flags_ex & IBV_DEVICE_RAW_IP_CSUM); + DRV_LOG(DEBUG, "checksum offloading is %ssupported", + (config.hw_csum ? "" : "not ")); +#ifdef HAVE_IBV_DEVICE_COUNTERS_SET_SUPPORT + config.flow_counter_en = !!attr.max_counter_sets; + mlx5_glue->describe_counter_set(ctx, 0, &cs_desc); + DRV_LOG(DEBUG, "counter type = %d, num of cs = %ld, attributes = %d", + cs_desc.counter_type, cs_desc.num_of_cs, + cs_desc.attributes); +#endif + config.ind_table_max_size = + attr.rss_caps.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 = !!(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 = !!(attr.raw_packet_caps & + IBV_RAW_PACKET_CAP_SCATTER_FCS); + DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported", + (config.hw_fcs_strip ? "" : "not ")); +#ifdef HAVE_IBV_WQ_FLAG_RX_END_PADDING + config.hw_padding = !!attr.rx_pad_end_addr_align; +#endif + DRV_LOG(DEBUG, "hardware Rx end alignment padding is %ssupported", + (config.hw_padding ? "" : "not ")); + config.tso = (attr.tso_caps.max_tso > 0 && + (attr.tso_caps.supported_qpts & + (1 << IBV_QPT_RAW_PACKET))); + if (config.tso) + config.tso_max_payload_sz = attr.tso_caps.max_tso; + if (config.mps && !mps) { + DRV_LOG(ERR, + "multi-packet send not supported on this device" + " (" MLX5_TXQ_MPW_EN ")"); + err = ENOTSUP; + goto error; + } + DRV_LOG(INFO, "%sMPS is %s", + config.mps == MLX5_MPW_ENHANCED ? "enhanced " : "", + 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.mprq.enabled && mprq) { + if (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_MAX(MLX5_MPRQ_STRIDE_NUM_N, + mprq_min_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); + } + 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; + } + eth_dev = rte_eth_dev_allocate(name); + if (eth_dev == NULL) { + DRV_LOG(ERR, "can not allocate rte ethdev"); + err = ENOMEM; + goto error; + } + eth_dev->data->dev_private = priv; + priv->dev_data = eth_dev->data; + eth_dev->data->mac_addrs = priv->mac; + eth_dev->device = dpdk_dev; + eth_dev->device->driver = &mlx5_driver.driver; + err = mlx5_uar_init_primary(eth_dev); + if (err) { + err = rte_errno; + goto error; + } + /* 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]); +#ifndef NDEBUG + { + 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)); + priv->nl_socket = -1; + priv->nl_sn = 0; + if (vf && config.vf_nl_en) { + priv->nl_socket = mlx5_nl_init(RTMGRP_LINK); + if (priv->nl_socket < 0) + priv->nl_socket = -1; + mlx5_nl_mac_addr_sync(eth_dev); + } + TAILQ_INIT(&priv->flows); + TAILQ_INIT(&priv->ctrl_flows); + /* 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(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 asyn_fd from + * Verbs context returned by ibv_open_device(). + */ + mlx5_link_update(eth_dev, 0); + /* Store device configuration on private structure. */ + priv->config = config; + /* Create drop queue. */ + err = mlx5_flow_create_drop_queue(eth_dev); + if (err) { + DRV_LOG(ERR, "port %u drop queue allocation failed: %s", + eth_dev->data->port_id, strerror(rte_errno)); + err = rte_errno; + goto error; + } + /* Supported Verbs flow priority number detection. */ + if (verb_priorities == 0) + verb_priorities = mlx5_get_max_verbs_prio(eth_dev); + if (verb_priorities < MLX5_VERBS_FLOW_PRIO_8) { + DRV_LOG(ERR, "port %u wrong Verbs flow priorities: %u", + eth_dev->data->port_id, verb_priorities); + err = ENOTSUP; + goto error; + } + priv->config.max_verbs_prio = verb_priorities; + /* + * Once the device is added to the list of memory event + * callback, its global MR cache table cannot be expanded + * on the fly because of deadlock. If it overflows, lookup + * should be done by searching MR list linearly, which is slow. + */ + err = mlx5_mr_btree_init(&priv->mr.cache, + MLX5_MR_BTREE_CACHE_N * 2, + eth_dev->device->numa_node); + if (err) { + err = rte_errno; + goto error; + } + /* Add device to memory callback list. */ + rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock); + LIST_INSERT_HEAD(&mlx5_shared_data->mem_event_cb_list, + priv, mem_event_cb); + rte_rwlock_write_unlock(&mlx5_shared_data->mem_event_rwlock); + return eth_dev; error: if (priv) rte_free(priv);