examples/l2fwd-event/l2fwd_common.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2019 Marvell International Ltd.
   3  */
   4
   5 #include "l2fwd_common.h"
   6
   7 int
   8 l2fwd_event_init_ports(struct l2fwd_resources *rsrc)
   9 {
  10         uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
  11         uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
  12         struct rte_eth_conf port_conf = {
  13                 .rxmode = {
  14                         .max_rx_pkt_len = RTE_ETHER_MAX_LEN,
  15                         .split_hdr_size = 0,
  16                 },
  17                 .txmode = {
  18                         .mq_mode = ETH_MQ_TX_NONE,
  19                 },
  20         };
  21         uint16_t nb_ports_available = 0;
  22         uint16_t port_id;
  23         int ret;
  24
  25         if (rsrc->event_mode) {
  26                 port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
  27                 port_conf.rx_adv_conf.rss_conf.rss_key = NULL;
  28                 port_conf.rx_adv_conf.rss_conf.rss_hf = ETH_RSS_IP;
  29         }
  30
  31         /* Initialise each port */
  32         RTE_ETH_FOREACH_DEV(port_id) {
  33                 struct rte_eth_conf local_port_conf = port_conf;
  34                 struct rte_eth_dev_info dev_info;
  35                 struct rte_eth_rxconf rxq_conf;
  36                 struct rte_eth_txconf txq_conf;
  37
  38                 /* skip ports that are not enabled */
  39                 if ((rsrc->enabled_port_mask & (1 << port_id)) == 0) {
  40                         printf("Skipping disabled port %u\n", port_id);
  41                         continue;
  42                 }
  43                 nb_ports_available++;
  44
  45                 /* init port */
  46                 printf("Initializing port %u... ", port_id);
  47                 fflush(stdout);
  48
  49                 ret = rte_eth_dev_info_get(port_id, &dev_info);
  50                 if (ret != 0)
  51                         rte_panic("Error during getting device (port %u) info: %s\n",
  52                                   port_id, strerror(-ret));
  53                 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
  54                         local_port_conf.txmode.offloads |=
  55                                 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
  56                 ret = rte_eth_dev_configure(port_id, 1, 1, &local_port_conf);
  57                 if (ret < 0)
  58                         rte_panic("Cannot configure device: err=%d, port=%u\n",
  59                                   ret, port_id);
  60
  61                 ret = rte_eth_dev_adjust_nb_rx_tx_desc(port_id, &nb_rxd,
  62                                                        &nb_txd);
  63                 if (ret < 0)
  64                         rte_panic("Cannot adjust number of descriptors: err=%d, port=%u\n",
  65                                   ret, port_id);
  66
  67                 rte_eth_macaddr_get(port_id, &rsrc->eth_addr[port_id]);
  68
  69                 /* init one RX queue */
  70                 fflush(stdout);
  71                 rxq_conf = dev_info.default_rxconf;
  72                 rxq_conf.offloads = local_port_conf.rxmode.offloads;
  73                 ret = rte_eth_rx_queue_setup(port_id, 0, nb_rxd,
  74                                              rte_eth_dev_socket_id(port_id),
  75                                              &rxq_conf,
  76                                              rsrc->pktmbuf_pool);
  77                 if (ret < 0)
  78                         rte_panic("rte_eth_rx_queue_setup:err=%d, port=%u\n",
  79                                   ret, port_id);
  80
  81                 /* init one TX queue on each port */
  82                 fflush(stdout);
  83                 txq_conf = dev_info.default_txconf;
  84                 txq_conf.offloads = local_port_conf.txmode.offloads;
  85                 ret = rte_eth_tx_queue_setup(port_id, 0, nb_txd,
  86                                 rte_eth_dev_socket_id(port_id),
  87                                 &txq_conf);
  88                 if (ret < 0)
  89                         rte_panic("rte_eth_tx_queue_setup:err=%d, port=%u\n",
  90                                   ret, port_id);
  91
  92                 rte_eth_promiscuous_enable(port_id);
  93
  94                 printf("Port %u,MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n\n",
  95                         port_id,
  96                         rsrc->eth_addr[port_id].addr_bytes[0],
  97                         rsrc->eth_addr[port_id].addr_bytes[1],
  98                         rsrc->eth_addr[port_id].addr_bytes[2],
  99                         rsrc->eth_addr[port_id].addr_bytes[3],
 100                         rsrc->eth_addr[port_id].addr_bytes[4],
 101                         rsrc->eth_addr[port_id].addr_bytes[5]);
 102         }
 103
 104         return nb_ports_available;
 105 }