“struct rte_ether_hdr” 是一个数据结构,用于表示以太网帧的头部。它是由DPDK(Data Plane Development Kit)网络库定义的,用于高性能网络应用程序开发。 在C语言中,结构体的定义如下: structrte_ether_hdr{ uint8_tdst_addr[ETHER_ADDR_LEN]; uint8_tsrc_addr[ETHER_ADDR_LEN]; uint16_tether_type; }; ...
struct rte_ether_hdr 是在 DPDK(Data Plane Development Kit)中定义的以太网头部结构体。它的定义如下: /** * Ethernet header. */ structrte_ether_hdr{ structrte_ether_addr d_addr;/**< Destination address. */ structrte_ether_addr s_addr;/**< Source address. */ uint16_tether_type;/**< ...
.hdr = { .dst_addr = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}, }, }; struct rte_flow_item_ipv4 ipv4_spec = { .hdr = { .src_addr = rte_cpu_to_be_32(0xC0A80002), // 192.168.0.2 }, }; struct rte_flow_item_ipv4 ipv4_mask = { .hdr = { .src_addr = 0xFFFFFFFF, ...
struct rte_ether_hdr *eth = (struct rte_ether_hdr *)msg; rte_memcpy(eth->s_addr.addr_bytes, gSrcMac, RTE_ETHER_ADDR_LEN); rte_memcpy(eth->d_addr.addr_bytes, gDstMac, RTE_ETHER_ADDR_LEN); eth->ether_type = htons(RTE_ETHER_TYPE_IPV4); // IPV4 头 struct rte_ipv4_hdr *ip =...
rte_pktmbuf_data_len(mbuf)= rte_pktmbuf_pkt_len(mbuf) =pkt_len+ RTE_ETHER_HDR_LEN; Mbuf 概述 DPDK mbuf实现了message buffer,可以存储报文数据或者控制信息等。mbuf存储在mempool中,以便在数据面提高访问性能。 原理 DPDK把元数据(metadata)和实际数据存储在一个mbuf中,并且使mbuf结构体尽量小,目前仅占用...
.max_rx_pkt_len = RTE_ETHER_MAX_LEN, .split_hdr_size = 0, .offloads = DEV_RX_OFFLOAD_CHECKSUM, }, .rx_adv_conf = { .rss_conf = { // RSS配置相关 .rss_key = NULL, // 如果不为空,则配置对称算法KEY .rss_hf = ETH_RSS_IP, //根据IP进行hash ...
struct rte_ether_hdr *pkt_hdr; struct dev_info *dev; struct rte_mbuf *tbuf; int ret; /* Get the Ethernet header and find destination output */ pkt_hdr = rte_pktmbuf_mtod(mbuf, struct rte_ether_hdr *); ret = rte_hash_lookup(Mac_output_map, &pkt_hdr->d_addr); ...
* 如果启用了 vlan 剥离,则接收到的 vlan 数据包将具有 RTE_PTYPE_L2_ETHER * 而不是 RTE_PTYPE_L2_VLAN,因为 vlan 已从数据中剥离。 */ RTE_STD_C11 union { uint32_t packet_type; /**< L2/L3/L4 and tunnel information. */ struct { uint32_t l2_type:4; /**< (Outer) L2 type. *...
.h>#include<rte_ether.h>#defineRAW_MEMPOOL#defineMBUF_COUNT (1024-1)#definePRIV_SIZE 16//ETH_MAX_len = 1518//ETH_MTU = ETH_MAX_LEN - ETH_HDR_LEN - ETHER_CRC_LEN = 1518 - 14 - 4 = 1500#defineMBUF_DATAROOM_SIZE (RTE_PKTMBUF_HEADROOM + RTE_ETHER_MAX_LEN)#defineMBUF_SIZE (...
port_conf.rxmode.max_rx_pkt_len = ETHER_MAX_LEN; port_conf.rxmode.split_hdr_size = 0; port_conf.txmode.mq_mode = ETH_MQ_TX_NONE; rte_eth_dev_configure(port_id, 1, 1, &port_conf); return 0; } ``` 在上述示例中,我们首先初始化了DPDK环境,然后初始化了设备,并最终配置了设备的...