net/mlx4: drop inline receive support

The Verbs API used to implement inline receive is deprecated.
Support will be added back after refactoring the PMD.

Signed-off-by: Moti Haimovsky <motih@mellanox.com>
Signed-off-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>

diff --git a/drivers/net/mlx4/mlx4.c b/drivers/net/mlx4/mlx4.c
index 0a71e2c..30c70ee 100644 (file)
--- a/drivers/net/mlx4/mlx4.c
+++ b/drivers/net/mlx4/mlx4.c
@@ -1914,8 +1914,6 @@ rxq_setup_qp(struct priv *priv, struct ibv_cq *cq, uint16_t desc,
                .res_domain = rd,
        };
 
-       attr.max_inl_recv = priv->inl_recv_size,
-       attr.comp_mask |= IBV_EXP_QP_INIT_ATTR_INL_RECV;
        return ibv_exp_create_qp(priv->ctx, &attr);
 }
 
@@ -2977,25 +2975,6 @@ priv_get_mac(struct priv *priv, uint8_t (*mac)[ETHER_ADDR_LEN])
        return 0;
 }
 
-/**
- * Retrieve integer value from environment variable.
- *
- * @param[in] name
- *   Environment variable name.
- *
- * @return
- *   Integer value, 0 if the variable is not set.
- */
-static int
-mlx4_getenv_int(const char *name)
-{
-       const char *val = getenv(name);
-
-       if (val == NULL)
-               return 0;
-       return atoi(val);
-}
-
 static void
 mlx4_dev_link_status_handler(void *);
 static void
@@ -3644,13 +3623,11 @@ mlx4_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
                struct ibv_pd *pd = NULL;
                struct priv *priv = NULL;
                struct rte_eth_dev *eth_dev = NULL;
-               struct ibv_exp_device_attr exp_device_attr;
                struct ether_addr mac;
 
                /* If port is not enabled, skip. */
                if (!(conf.ports.enabled & (1 << i)))
                        continue;
-               exp_device_attr.comp_mask = IBV_EXP_DEVICE_ATTR_EXP_CAP_FLAGS;
 
                DEBUG("using port %u", port);
 
@@ -3703,35 +3680,6 @@ mlx4_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
                priv->port = port;
                priv->pd = pd;
                priv->mtu = ETHER_MTU;
-               if (ibv_exp_query_device(ctx, &exp_device_attr)) {
-                       ERROR("ibv_exp_query_device() failed");
-                       err = ENODEV;
-                       goto port_error;
-               }
-
-               priv->inl_recv_size = mlx4_getenv_int("MLX4_INLINE_RECV_SIZE");
-
-               if (priv->inl_recv_size) {
-                       exp_device_attr.comp_mask =
-                               IBV_EXP_DEVICE_ATTR_INLINE_RECV_SZ;
-                       if (ibv_exp_query_device(ctx, &exp_device_attr)) {
-                               INFO("Couldn't query device for inline-receive"
-                                    " capabilities.");
-                               priv->inl_recv_size = 0;
-                       } else {
-                               if ((unsigned)exp_device_attr.inline_recv_sz <
-                                   priv->inl_recv_size) {
-                                       INFO("Max inline-receive (%d) <"
-                                            " requested inline-receive (%u)",
-                                            exp_device_attr.inline_recv_sz,
-                                            priv->inl_recv_size);
-                                       priv->inl_recv_size =
-                                               exp_device_attr.inline_recv_sz;
-                               }
-                       }
-                       INFO("Set inline receive size to %u",
-                            priv->inl_recv_size);
-               }
 
                priv->vf = vf;
                /* Configure the first MAC address by default. */

diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h
index cc36d29..9cbde1d 100644 (file)
--- a/drivers/net/mlx4/mlx4.h
+++ b/drivers/net/mlx4/mlx4.h
@@ -223,7 +223,6 @@ struct priv {
        unsigned int vf:1; /* This is a VF device. */
        unsigned int pending_alarm:1; /* An alarm is pending. */
        unsigned int isolated:1; /* Toggle isolated mode. */
-       unsigned int inl_recv_size; /* Inline recv size */
        /* RX/TX queues. */
        unsigned int rxqs_n; /* RX queues array size. */
        unsigned int txqs_n; /* TX queues array size. */