+#define MLX5_MAX_LRO_SIZE (UINT8_MAX * 256u)
+#define MLX5_MAX_TCP_HDR_OFFSET ((unsigned int)(sizeof(struct rte_ether_hdr) + \
+ sizeof(struct rte_vlan_hdr) * 2 + \
+ sizeof(struct rte_ipv6_hdr)))
+#define MAX_TCP_OPTION_SIZE 40u
+#define MLX5_MAX_LRO_HEADER_FIX ((unsigned int)(MLX5_MAX_TCP_HDR_OFFSET + \
+ sizeof(struct rte_tcp_hdr) + \
+ MAX_TCP_OPTION_SIZE))
+
+/**
+ * Adjust the maximum LRO massage size.
+ *
+ * @param dev
+ * Pointer to Ethernet device.
+ * @param max_lro_size
+ * The maximum size for LRO packet.
+ */
+static void
+mlx5_max_lro_msg_size_adjust(struct rte_eth_dev *dev, uint32_t max_lro_size)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+
+ if (priv->config.hca_attr.lro_max_msg_sz_mode ==
+ MLX5_LRO_MAX_MSG_SIZE_START_FROM_L4 && max_lro_size >
+ MLX5_MAX_TCP_HDR_OFFSET)
+ max_lro_size -= MLX5_MAX_TCP_HDR_OFFSET;
+ max_lro_size = RTE_MIN(max_lro_size, MLX5_MAX_LRO_SIZE);
+ assert(max_lro_size >= 256u);
+ max_lro_size /= 256u;
+ if (priv->max_lro_msg_size)
+ priv->max_lro_msg_size =
+ RTE_MIN((uint32_t)priv->max_lro_msg_size, max_lro_size);
+ else
+ priv->max_lro_msg_size = max_lro_size;
+}
+