X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Fsample_app_ug%2Flink_status_intr.rst;h=1057c7584d5647f0e0bf481ab42dfa9a18adad9a;hb=31f83163cf2f9ac4d8c1884bb7d1fc8e15b1f540;hp=57673456be5c4a9f060267e1f0adbd2360e04b4c;hpb=8728ccf37615904cf23fb8763895b05c9a3c6b0c;p=dpdk.git diff --git a/doc/guides/sample_app_ug/link_status_intr.rst b/doc/guides/sample_app_ug/link_status_intr.rst index 57673456be..1057c7584d 100644 --- a/doc/guides/sample_app_ug/link_status_intr.rst +++ b/doc/guides/sample_app_ug/link_status_intr.rst @@ -49,7 +49,7 @@ where, * -T PERIOD: statistics will be refreshed each PERIOD seconds (0 to disable, 10 default) -To run the application in a linuxapp environment with 4 lcores, 4 memory channels, 16 ports and 8 RX queues per lcore, +To run the application in a linux environment with 4 lcores, 4 memory channels, 16 ports and 8 RX queues per lcore, issue the command: .. code-block:: console @@ -88,13 +88,6 @@ To fully understand this code, it is recommended to study the chapters that rela .. code-block:: c - if (rte_pci_probe() < 0) - rte_exit(EXIT_FAILURE, "Cannot probe PCI\n"); - - nb_ports = rte_eth_dev_count(); - if (nb_ports == 0) - rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n"); - /* * Each logical core is assigned a dedicated TX queue on each port. */ @@ -119,10 +112,6 @@ To fully understand this code, it is recommended to study the chapters that rela rte_eth_dev_info_get((uint8_t) portid, &dev_info); } -Observe that: - -* rte_pci_probe() parses the devices on the PCI bus and initializes recognized devices. - The next step is to configure the RX and TX queues. For each port, there is only one RX queue (only one lcore is able to poll a given port). The number of TX queues depends on the number of available lcores. @@ -141,10 +130,6 @@ The global configuration is stored in a static structure: static const struct rte_eth_conf port_conf = { .rxmode = { .split_hdr_size = 0, - .header_split = 0, /**< Header Split disabled */ - .hw_ip_checksum = 0, /**< IP checksum offload disabled */ - .hw_vlan_filter = 0, /**< VLAN filtering disabled */ - .hw_strip_crc= 0, /**< CRC stripped by hardware */ }, .txmode = {}, .intr_conf = { @@ -172,6 +157,8 @@ An example callback function that has been written as indicated below. lsi_event_callback(uint16_t port_id, enum rte_eth_event_type type, void *param) { struct rte_eth_link link; + int ret; + char link_status[RTE_ETH_LINK_MAX_STR_LEN]; RTE_SET_USED(param); @@ -179,13 +166,14 @@ An example callback function that has been written as indicated below. printf("Event type: %s\n", type == RTE_ETH_EVENT_INTR_LSC ? "LSC interrupt" : "unknown event"); - rte_eth_link_get_nowait(port_id, &link); - - if (link.link_status) { - printf("Port %d Link Up - speed %u Mbps - %s\n\n", port_id, (unsigned)link.link_speed, - (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? ("full-duplex") : ("half-duplex")); - } else - printf("Port %d Link Down\n\n", port_id); + ret = rte_eth_link_get_nowait(port_id, &link); + if (ret < 0) { + printf("Failed to get port %d link status: %s\n\n", + port_id, rte_strerror(-ret)); + } else { + rte_eth_link_to_str(link_status, sizeof(link_status), &link); + printf("Port %d %s\n", port_id, link_status); + } } This function is called when a link status interrupt is present for the right port. @@ -319,11 +307,11 @@ The processing is very simple: processes the TX port from the RX port and then r static void lsi_simple_forward(struct rte_mbuf *m, unsigned portid) { - struct ether_hdr *eth; + struct rte_ether_hdr *eth; void *tmp; unsigned dst_port = lsi_dst_ports[portid]; - eth = rte_pktmbuf_mtod(m, struct ether_hdr *); + eth = rte_pktmbuf_mtod(m, struct rte_ether_hdr *); /* 02:00:00:00:00:xx */ @@ -332,7 +320,7 @@ The processing is very simple: processes the TX port from the RX port and then r *((uint64_t *)tmp) = 0x000000000002 + (dst_port << 40); /* src addr */ - ether_addr_copy(&lsi_ports_eth_addr[dst_port], ð->s_addr); + rte_ether_addr_copy(&lsi_ports_eth_addr[dst_port], ð->s_addr); lsi_send_packet(m, dst_port); }