在初始化的过程中,primary进程和secondary进程都会进入rte_eth_dev_pci_allocate函数去获取struct rte_eth_dev结构。 先介绍下struct rte_eth_dev结构: struct rte_eth_dev { eth_rx_burst_t rx_pkt_burst; /**< Pointer to PMD receive function. */ eth_tx_burst_t tx_pkt_burst; /**< Pointer to ...
mbuf = rte_mbuf_raw_alloc(rxq->mb_pool); if (unlikely(mbuf == NULL)) { hns3_err(hw, "Failed to allocate RXD[%u] for rx queue!", i); hns3_rx_queue_release_mbufs(rxq); return -ENOMEM; } // 初始化一个mbuf rte_mbuf_refcnt_set(mbuf, 1); mbuf->next = NULL; mbuf->data_...
struct rte_mempool *mbuf_pool; void *producer(void *arg) { while (1) { struct rte_mbuf *mbufs[BURST_SIZE]; for (int i = 0; i < BURST_SIZE; i++) { mbufs[i] = rte_pktmbuf_alloc(mbuf_pool); if (mbufs[i] == NULL) { printf("Failed to allocate mbuf\n"); continue; } ...
在初始化的过程中,primary进程和secondary进程都会进入rte_eth_dev_pci_allocate函数去获取struct rte_eth_dev结构。 先介绍下struct rte_eth_dev结构: structrte_eth_dev { eth_rx_burst_t rx_pkt_burst; /**< Pointer to PMD receive function. */eth_tx_burst_t tx_pkt_burst; /**< Pointer to PMD...
struct rte_eth_conf dev_conf; /**< Configuration applied to device. */uint16_t mtu; /**< Maximum Transmission Unit. */uint32_t min_rx_buf_size; /**< Common rx buffer size handled by all queues */uint64_t rx_mbuf_alloc_failed; /**< RX ring mbuf allocation failures. */ ...
最后通过调用netif_rx()将报文送入linux协议栈,这其中需要将dpdk的mbuf转换成skb_buf。当linux向kni端口发送报文时,调用回调函数kni_net_tx(),然后报文经过转换之后发送到端口上。rte_pktmbut_free()把内存重新释放到mbuf内存池中。 图3 数据包通过KNI的流程...
for(i=0;i<BURST_SIZE;i++){ mbuf[i]=rte_pktmbuf_alloc(dev_info.tx_pkt_burst?NULL:dev_info. dev_private->socket_id,MBUF_CACHE_SIZE); if(mbuf[i]==NULL){ rte_exit(EXIT_FAILURE,"Error: failed to allocate mbuf\n"); } mbuf[i]->data_len=mbuf[i]->pkt_len=64; ...
PANIC in pktgen_mbuf_pool_create(): Cannot create mbuf pool (Rate TX 0:0) port 0, queue 0, nb_mbufs 4096, socket_id 0: Cannot allocate memory 6: [./Builddir/app/pktgen(+0xa85e) [0x5616d01bb85e]] 5: [/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0x7f9315...
struct rte_mempool *mbuf_pool; static void signal_handler(int signum) { if (signum == SIGINT || signum == SIGTERM) { printf("\nSignal %d received, preparing to exit...\n", signum); force_quit = true; } } static int configure_eth_device(uint16_t port_id) { ...
my port 0's PCIe address), I get "Creation of mbuf pool for socket 0 failed: Cannot allocate memory". I've tried adding --total-num-mbufs to restrict that, but that didn't help. It runs if I try restricting it to just two cores, but then I drop most of my packets. Here's ...