librdmacm: Connect rdma_connect to the ECE

The ECE options are handled to the kernel at the time
of connection request, e.g. rdma_connect().

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

librdmacm/cma.c

@@ -1706,6 +1706,13 @@ static void ucma_copy_conn_param_to_kern(struct cma_id_private *id_priv,
 	}
 }
 
+static void ucma_copy_ece_param_to_kern_req(struct cma_id_private *id_priv,
+					    struct ucma_abi_ece *dst)
+{
+	dst->vendor_id = id_priv->local_ece.vendor_id;
+	dst->attr_mod = id_priv->local_ece.options;
+}
+
 int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
 {
 	uint32_t qp_num = conn_param ? conn_param->qp_num : 0;
@@ -1738,6 +1745,8 @@ int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
 	ucma_copy_conn_param_to_kern(id_priv, &cmd.conn_param, conn_param,
 				     qp_num, srq);
 
+	ucma_copy_ece_param_to_kern_req(id_priv, &cmd.ece);
+
 	ret = write(id->channel->fd, &cmd, sizeof cmd);
 	if (ret != sizeof cmd)
 		return (ret >= 0) ? ERR(ENODATA) : -1;

librdmacm/rdma_cma_abi.h

@@ -227,13 +227,19 @@ struct ucma_abi_ud_param {
 	__u8 reserved2[4];  /* Round to 8-byte boundary to support 32/64 */
 };
 
+struct ucma_abi_ece {
+	__u32 vendor_id;
+	__u32 attr_mod;
+};
+
 struct ucma_abi_connect {
 	__u32 cmd;
 	__u16 in;
 	__u16 out;
 	struct ucma_abi_conn_param conn_param;
 	__u32 id;
 	__u32 reserved;
+	struct ucma_abi_ece ece;
 };
 
 struct ucma_abi_listen {