From: Ophir Munk <ophirmu@mellanox.com>
To: dev@dpdk.org, Matan Azrad <matan@mellanox.com>,
Raslan Darawsheh <rasland@mellanox.com>
Cc: Ophir Munk <ophirmu@mellanox.com>
Subject: [dpdk-dev] [PATCH v1 6/8] net/mlx5: refactor PCI probing under Linux
Date: Wed, 3 Jun 2020 15:06:00 +0000 [thread overview]
Message-ID: <20200603150602.4686-7-ophirmu@mellanox.com> (raw)
In-Reply-To: <20200603150602.4686-1-ophirmu@mellanox.com>
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 <ophirmu@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
---
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 7d60683..d1476c2 100644
--- a/drivers/net/mlx5/linux/mlx5_os.c
+++ b/drivers/net/mlx5/linux/mlx5_os.c
@@ -39,6 +39,7 @@
#include <mlx5_glue.h>
#include <mlx5_devx_cmds.h>
#include <mlx5_common.h>
+#include <mlx5_common_mp.h>
#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 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_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 4f7b4d3..f62ad12 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -10,7 +10,6 @@
#include <stdlib.h>
#include <errno.h>
#include <net/if.h>
-#include <fcntl.h>
#include <sys/mman.h>
#include <linux/rtnetlink.h>
@@ -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.
@@ -603,146 +579,6 @@ mlx5_flow_ipool_destroy(struct mlx5_dev_ctx_shared *sh)
}
/**
- * 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
* port dedicated IB device, the context will be used by only given
@@ -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 @@ mlx5_alloc_shared_ibctx(const struct mlx5_dev_spawn_data *spawn,
* @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 @@ mlx5_free_shared_ibctx(struct mlx5_dev_ctx_shared *sh)
* @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;
@@ -1127,173 +933,6 @@ mlx5_alloc_table_hash_list(struct mlx5_priv *priv)
}
/**
- * 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.
*
* A memzone is reserved by primary process and secondary processes attach to
@@ -1362,60 +1001,6 @@ mlx5_getenv_int(const char *name)
}
/**
- * 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
*
* @param[in] dev
@@ -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 @@ mlx5_init_once(void)
* @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 @@ mlx5_set_min_inline(struct mlx5_dev_spawn_data *spawn,
* @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 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
* @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 ec4ba87..f5d9aad 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_ */
--
2.8.4
next prev parent reply other threads:[~2020-06-03 15:08 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-03 15:05 [dpdk-dev] [PATCH v1 0/8] mlx5 PMD multi OS support Ophir Munk
2020-06-03 15:05 ` [dpdk-dev] [PATCH v1 1/8] net/mlx5: rename mlx5 ibv shared struct Ophir Munk
2020-06-03 15:05 ` [dpdk-dev] [PATCH v1 2/8] net/mlx5: add mlx5 Linux specific file with getter functions Ophir Munk
2020-06-08 11:20 ` Ferruh Yigit
2020-06-09 8:40 ` Ophir Munk
2020-06-09 8:43 ` Ferruh Yigit
2020-06-03 15:05 ` [dpdk-dev] [PATCH v1 3/8] drivers: remove mlx5 protection domain dependency on ibv Ophir Munk
2020-06-03 15:05 ` [dpdk-dev] [PATCH v1 4/8] net/mlx5: remove attributes dependency on ibv and dv Ophir Munk
2020-06-03 15:05 ` [dpdk-dev] [PATCH v1 5/8] net/mlx5: remove umem field dependency on dv Ophir Munk
2020-06-03 15:06 ` Ophir Munk [this message]
2020-06-03 15:06 ` [dpdk-dev] [PATCH v1 7/8] net/mlx5: add mlx5 header file specific to Linux Ophir Munk
2020-06-08 11:31 ` Ferruh Yigit
2020-06-09 8:44 ` Ophir Munk
2020-06-09 11:48 ` Ferruh Yigit
2020-06-09 14:49 ` Ophir Munk
2020-06-03 15:06 ` [dpdk-dev] [PATCH v1 8/8] net/mlx5: remove ibv dependency in spawn struct Ophir Munk
2020-06-07 8:49 ` [dpdk-dev] [PATCH v1 0/8] mlx5 PMD multi OS support Raslan Darawsheh
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