examples/l2fwd-event/l2fwd_common.c

   1 #include "l2fwd_common.h"
   2
   3 int
   4 l2fwd_event_init_ports(struct l2fwd_resources *rsrc)
   5 {
   6         uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
   7         uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
   8         struct rte_eth_conf port_conf = {
   9                 .rxmode = {
  10                         .max_rx_pkt_len = RTE_ETHER_MAX_LEN,
  11                         .split_hdr_size = 0,
  12                 },
  13                 .txmode = {
  14                         .mq_mode = ETH_MQ_TX_NONE,
  15                 },
  16         };
  17         uint16_t nb_ports_available = 0;
  18         uint16_t port_id;
  19         int ret;
  20
  21         if (rsrc->event_mode) {
  22                 port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
  23                 port_conf.rx_adv_conf.rss_conf.rss_key = NULL;
  24                 port_conf.rx_adv_conf.rss_conf.rss_hf = ETH_RSS_IP;
  25         }
  26
  27         /* Initialise each port */
  28         RTE_ETH_FOREACH_DEV(port_id) {
  29                 struct rte_eth_conf local_port_conf = port_conf;
  30                 struct rte_eth_dev_info dev_info;
  31                 struct rte_eth_rxconf rxq_conf;
  32                 struct rte_eth_txconf txq_conf;
  33
  34                 /* skip ports that are not enabled */
  35                 if ((rsrc->enabled_port_mask & (1 << port_id)) == 0) {
  36                         printf("Skipping disabled port %u\n", port_id);
  37                         continue;
  38                 }
  39                 nb_ports_available++;
  40
  41                 /* init port */
  42                 printf("Initializing port %u... ", port_id);
  43                 fflush(stdout);
  44                 rte_eth_dev_info_get(port_id, &dev_info);
  45                 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
  46                         local_port_conf.txmode.offloads |=
  47                                 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
  48                 ret = rte_eth_dev_configure(port_id, 1, 1, &local_port_conf);
  49                 if (ret < 0)
  50                         rte_panic("Cannot configure device: err=%d, port=%u\n",
  51                                   ret, port_id);
  52
  53                 ret = rte_eth_dev_adjust_nb_rx_tx_desc(port_id, &nb_rxd,
  54                                                        &nb_txd);
  55                 if (ret < 0)
  56                         rte_panic("Cannot adjust number of descriptors: err=%d, port=%u\n",
  57                                   ret, port_id);
  58
  59                 rte_eth_macaddr_get(port_id, &rsrc->eth_addr[port_id]);
  60
  61                 /* init one RX queue */
  62                 fflush(stdout);
  63                 rxq_conf = dev_info.default_rxconf;
  64                 rxq_conf.offloads = local_port_conf.rxmode.offloads;
  65                 ret = rte_eth_rx_queue_setup(port_id, 0, nb_rxd,
  66                                              rte_eth_dev_socket_id(port_id),
  67                                              &rxq_conf,
  68                                              rsrc->pktmbuf_pool);
  69                 if (ret < 0)
  70                         rte_panic("rte_eth_rx_queue_setup:err=%d, port=%u\n",
  71                                   ret, port_id);
  72
  73                 /* init one TX queue on each port */
  74                 fflush(stdout);
  75                 txq_conf = dev_info.default_txconf;
  76                 txq_conf.offloads = local_port_conf.txmode.offloads;
  77                 ret = rte_eth_tx_queue_setup(port_id, 0, nb_txd,
  78                                 rte_eth_dev_socket_id(port_id),
  79                                 &txq_conf);
  80                 if (ret < 0)
  81                         rte_panic("rte_eth_tx_queue_setup:err=%d, port=%u\n",
  82                                   ret, port_id);
  83
  84                 rte_eth_promiscuous_enable(port_id);
  85
  86                 printf("Port %u,MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
  87                         port_id,
  88                         rsrc->eth_addr[port_id].addr_bytes[0],
  89                         rsrc->eth_addr[port_id].addr_bytes[1],
  90                         rsrc->eth_addr[port_id].addr_bytes[2],
  91                         rsrc->eth_addr[port_id].addr_bytes[3],
  92                         rsrc->eth_addr[port_id].addr_bytes[4],
  93                         rsrc->eth_addr[port_id].addr_bytes[5]);
  94         }
  95
  96         return nb_ports_available;
  97 }