config: gather options for dlopen mlx dependency
[dpdk.git] / drivers / net / mlx5 / mlx5.c
index be7d8f5..a84e1af 100644 (file)
@@ -51,6 +51,9 @@
 /* Device parameter to enable RX completion queue compression. */
 #define MLX5_RXQ_CQE_COMP_EN "rxq_cqe_comp_en"
 
+/* Device parameter to enable RX completion entry padding to 128B. */
+#define MLX5_RXQ_CQE_PAD_EN "rxq_cqe_pad_en"
+
 /* Device parameter to enable Multi-Packet Rx queue. */
 #define MLX5_RX_MPRQ_EN "mprq_en"
 
  */
 #define MLX5_TXQS_MIN_INLINE "txqs_min_inline"
 
+/*
+ * Device parameter to configure the number of TX queues threshold for
+ * enabling vectorized Tx.
+ */
+#define MLX5_TXQS_MAX_VEC "txqs_max_vec"
+
 /* Device parameter to enable multi-packet send WQEs. */
 #define MLX5_TXQ_MPW_EN "txq_mpw_en"
 
@@ -337,11 +346,6 @@ mlx5_dev_close(struct rte_eth_dev *dev)
        }
        memset(priv, 0, sizeof(*priv));
        priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
-       /*
-        * flag to rte_eth_dev_close() that it should release the port resources
-        * (calling rte_eth_dev_release_port()) in addition to closing it.
-        */
-       dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
        /*
         * Reset mac_addrs to NULL such that it is not freed as part of
         * rte_eth_dev_release_port(). mac_addrs is part of dev_private so
@@ -390,6 +394,7 @@ const struct eth_dev_ops mlx5_dev_ops = {
        .filter_ctrl = mlx5_dev_filter_ctrl,
        .rx_descriptor_status = mlx5_rx_descriptor_status,
        .tx_descriptor_status = mlx5_tx_descriptor_status,
+       .rx_queue_count = mlx5_rx_queue_count,
        .rx_queue_intr_enable = mlx5_rx_intr_enable,
        .rx_queue_intr_disable = mlx5_rx_intr_disable,
        .is_removed = mlx5_is_removed,
@@ -479,6 +484,8 @@ mlx5_args_check(const char *key, const char *val, void *opaque)
        }
        if (strcmp(MLX5_RXQ_CQE_COMP_EN, key) == 0) {
                config->cqe_comp = !!tmp;
+       } else if (strcmp(MLX5_RXQ_CQE_PAD_EN, key) == 0) {
+               config->cqe_pad = !!tmp;
        } else if (strcmp(MLX5_RX_MPRQ_EN, key) == 0) {
                config->mprq.enabled = !!tmp;
        } else if (strcmp(MLX5_RX_MPRQ_LOG_STRIDE_NUM, key) == 0) {
@@ -491,6 +498,8 @@ mlx5_args_check(const char *key, const char *val, void *opaque)
                config->txq_inline = tmp;
        } else if (strcmp(MLX5_TXQS_MIN_INLINE, key) == 0) {
                config->txqs_inline = tmp;
+       } else if (strcmp(MLX5_TXQS_MAX_VEC, key) == 0) {
+               config->txqs_vec = tmp;
        } else if (strcmp(MLX5_TXQ_MPW_EN, key) == 0) {
                config->mps = !!tmp;
        } else if (strcmp(MLX5_TXQ_MPW_HDR_DSEG_EN, key) == 0) {
@@ -531,12 +540,14 @@ mlx5_args(struct mlx5_dev_config *config, struct rte_devargs *devargs)
 {
        const char **params = (const char *[]){
                MLX5_RXQ_CQE_COMP_EN,
+               MLX5_RXQ_CQE_PAD_EN,
                MLX5_RX_MPRQ_EN,
                MLX5_RX_MPRQ_LOG_STRIDE_NUM,
                MLX5_RX_MPRQ_MAX_MEMCPY_LEN,
                MLX5_RXQS_MIN_MPRQ,
                MLX5_TXQ_INLINE,
                MLX5_TXQS_MIN_INLINE,
+               MLX5_TXQS_MAX_VEC,
                MLX5_TXQ_MPW_EN,
                MLX5_TXQ_MPW_HDR_DSEG_EN,
                MLX5_TXQ_MAX_INLINE_LEN,
@@ -698,8 +709,8 @@ mlx5_uar_init_secondary(struct rte_eth_dev *dev)
  *   Backing DPDK device.
  * @param ibv_dev
  *   Verbs device.
- * @param vf
- *   If nonzero, enable VF-specific features.
+ * @param config
+ *   Device configuration parameters.
  * @param[in] switch_info
  *   Switch properties of Ethernet device.
  *
@@ -713,36 +724,20 @@ mlx5_uar_init_secondary(struct rte_eth_dev *dev)
 static struct rte_eth_dev *
 mlx5_dev_spawn(struct rte_device *dpdk_dev,
               struct ibv_device *ibv_dev,
-              int vf,
+              struct mlx5_dev_config config,
               const struct mlx5_switch_info *switch_info)
 {
-       struct ibv_context *ctx;
+       struct ibv_context *ctx = NULL;
        struct ibv_device_attr_ex attr;
        struct ibv_port_attr port_attr;
        struct ibv_pd *pd = NULL;
        struct mlx5dv_context dv_attr = { .comp_mask = 0 };
-       struct mlx5_dev_config config = {
-               .vf = !!vf,
-               .mps = MLX5_ARG_UNSET,
-               .tx_vec_en = 1,
-               .rx_vec_en = 1,
-               .mpw_hdr_dseg = 0,
-               .txq_inline = MLX5_ARG_UNSET,
-               .txqs_inline = MLX5_ARG_UNSET,
-               .inline_max_packet_sz = MLX5_ARG_UNSET,
-               .vf_nl_en = 1,
-               .mprq = {
-                       .enabled = 0,
-                       .stride_num_n = MLX5_MPRQ_STRIDE_NUM_N,
-                       .max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN,
-                       .min_rxqs_num = MLX5_MPRQ_MIN_RXQS,
-               },
-       };
        struct rte_eth_dev *eth_dev = NULL;
        struct priv *priv = NULL;
        int err = 0;
        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;
@@ -791,10 +786,16 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
        /* Prepare shared data between primary and secondary process. */
        mlx5_prepare_shared_data();
        errno = 0;
-       ctx = mlx5_glue->open_device(ibv_dev);
-       if (!ctx) {
-               rte_errno = errno ? errno : ENODEV;
-               return NULL;
+       ctx = mlx5_glue->dv_open_device(ibv_dev);
+       if (ctx) {
+               config.devx = 1;
+               DRV_LOG(DEBUG, "DEVX is supported");
+       } else {
+               ctx = mlx5_glue->open_device(ibv_dev);
+               if (!ctx) {
+                       rte_errno = errno ? errno : ENODEV;
+                       return NULL;
+               }
        }
 #ifdef HAVE_IBV_MLX5_MOD_SWP
        dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP;
@@ -863,6 +864,11 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
        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 &
@@ -1079,6 +1085,12 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
                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.mprq.enabled && mprq) {
                if (config.mprq.stride_num_n > mprq_max_stride_num_n ||
                    config.mprq.stride_num_n < mprq_min_stride_num_n) {
@@ -1103,6 +1115,8 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
                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;
@@ -1157,7 +1171,7 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
        eth_dev->dev_ops = &mlx5_dev_ops;
        /* Register MAC address. */
        claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0));
-       if (vf && config.vf_nl_en)
+       if (config.vf && config.vf_nl_en)
                mlx5_nl_mac_addr_sync(eth_dev);
        priv->tcf_context = mlx5_flow_tcf_context_create();
        if (!priv->tcf_context) {
@@ -1326,7 +1340,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 {
        struct ibv_device **ibv_list;
        unsigned int n = 0;
-       int vf;
+       struct mlx5_dev_config dev_config;
        int ret;
 
        assert(pci_drv == &mlx5_driver);
@@ -1424,21 +1438,46 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
         */
        if (n)
                qsort(list, n, sizeof(*list), mlx5_dev_spawn_data_cmp);
+       /* Default configuration. */
+       dev_config = (struct mlx5_dev_config){
+               .mps = MLX5_ARG_UNSET,
+               .tx_vec_en = 1,
+               .rx_vec_en = 1,
+               .txq_inline = MLX5_ARG_UNSET,
+               .txqs_inline = MLX5_ARG_UNSET,
+               .txqs_vec = MLX5_ARG_UNSET,
+               .inline_max_packet_sz = MLX5_ARG_UNSET,
+               .vf_nl_en = 1,
+               .mprq = {
+                       .enabled = 0, /* Disabled by default. */
+                       .stride_num_n = MLX5_MPRQ_STRIDE_NUM_N,
+                       .max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN,
+                       .min_rxqs_num = MLX5_MPRQ_MIN_RXQS,
+               },
+       };
+       /* Device speicific configuration. */
        switch (pci_dev->id.device_id) {
+       case PCI_DEVICE_ID_MELLANOX_CONNECTX5BF:
+               dev_config.txqs_vec = MLX5_VPMD_MAX_TXQS_BLUEFIELD;
+               break;
        case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
        case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
        case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF:
        case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF:
-               vf = 1;
+               dev_config.vf = 1;
                break;
        default:
-               vf = 0;
+               break;
        }
+       /* Set architecture-dependent default value if unset. */
+       if (dev_config.txqs_vec == MLX5_ARG_UNSET)
+               dev_config.txqs_vec = MLX5_VPMD_MAX_TXQS;
        for (i = 0; i != n; ++i) {
                uint32_t restore;
 
-               list[i].eth_dev = mlx5_dev_spawn
-                       (&pci_dev->device, list[i].ibv_dev, vf, &list[i].info);
+               list[i].eth_dev = mlx5_dev_spawn(&pci_dev->device,
+                                                list[i].ibv_dev, dev_config,
+                                                &list[i].info);
                if (!list[i].eth_dev) {
                        if (rte_errno != EBUSY && rte_errno != EEXIST)
                                break;
@@ -1485,6 +1524,32 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
        return ret;
 }
 
+/**
+ * DPDK callback to remove a PCI device.
+ *
+ * This function removes all Ethernet devices belong to a given PCI device.
+ *
+ * @param[in] pci_dev
+ *   Pointer to the PCI device.
+ *
+ * @return
+ *   0 on success, the function cannot fail.
+ */
+static int
+mlx5_pci_remove(struct rte_pci_device *pci_dev)
+{
+       uint16_t port_id;
+       struct rte_eth_dev *port;
+
+       for (port_id = 0; port_id < RTE_MAX_ETHPORTS; port_id++) {
+               port = &rte_eth_devices[port_id];
+               if (port->state != RTE_ETH_DEV_UNUSED &&
+                               port->device == &pci_dev->device)
+                       rte_eth_dev_close(port_id);
+       }
+       return 0;
+}
+
 static const struct rte_pci_id mlx5_pci_id_map[] = {
        {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
@@ -1526,6 +1591,14 @@ static const struct rte_pci_id mlx5_pci_id_map[] = {
                RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
                               PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF)
        },
+       {
+               RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
+                               PCI_DEVICE_ID_MELLANOX_CONNECTX6)
+       },
+       {
+               RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
+                               PCI_DEVICE_ID_MELLANOX_CONNECTX6VF)
+       },
        {
                .vendor_id = 0
        }
@@ -1537,11 +1610,12 @@ static struct rte_pci_driver mlx5_driver = {
        },
        .id_table = mlx5_pci_id_map,
        .probe = mlx5_pci_probe,
+       .remove = mlx5_pci_remove,
        .drv_flags = (RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
                      RTE_PCI_DRV_PROBE_AGAIN),
 };
 
-#ifdef RTE_LIBRTE_MLX5_DLOPEN_DEPS
+#ifdef RTE_IBVERBS_LINK_DLOPEN
 
 /**
  * Suffix RTE_EAL_PMD_PATH with "-glue".
@@ -1702,7 +1776,7 @@ RTE_INIT(rte_mlx5_pmd_init)
         * cleanup all the Verbs resources even when the device was removed.
         */
        setenv("MLX5_DEVICE_FATAL_CLEANUP", "1", 1);
-#ifdef RTE_LIBRTE_MLX5_DLOPEN_DEPS
+#ifdef RTE_IBVERBS_LINK_DLOPEN
        if (mlx5_glue_init())
                return;
        assert(mlx5_glue);