1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2015 Intel Corporation 3 */ 4 5 6 #include <stdio.h> 7 #include <stdlib.h> 8 9 #include <rte_common.h> 10 #include <rte_spinlock.h> 11 #include <rte_eal.h> 12 #include <rte_ethdev.h> 13 #include <rte_ether.h> 14 #include <rte_ip.h> 15 #include <rte_memory.h> 16 #include <rte_mempool.h> 17 #include <rte_mbuf.h> 18 19 #include "ethapp.h" 20 21 #define MAX_PORTS RTE_MAX_ETHPORTS 22 #define MAX_BURST_LENGTH 32 23 #define PORT_RX_QUEUE_SIZE 128 24 #define PORT_TX_QUEUE_SIZE 256 25 #define PKTPOOL_EXTRA_SIZE 512 26 #define PKTPOOL_CACHE 32 27 28 29 struct txq_port { 30 uint16_t cnt_unsent; 31 struct rte_mbuf *buf_frames[MAX_BURST_LENGTH]; 32 }; 33 34 struct app_port { 35 struct ether_addr mac_addr; 36 struct txq_port txq; 37 rte_spinlock_t lock; 38 int port_active; 39 int port_dirty; 40 int idx_port; 41 struct rte_mempool *pkt_pool; 42 }; 43 44 struct app_config { 45 struct app_port ports[MAX_PORTS]; 46 int cnt_ports; 47 int exit_now; 48 }; 49 50 51 struct app_config app_cfg; 52 53 54 void lock_port(int idx_port) 55 { 56 struct app_port *ptr_port = &app_cfg.ports[idx_port]; 57 58 rte_spinlock_lock(&ptr_port->lock); 59 } 60 61 void unlock_port(int idx_port) 62 { 63 struct app_port *ptr_port = &app_cfg.ports[idx_port]; 64 65 rte_spinlock_unlock(&ptr_port->lock); 66 } 67 68 void mark_port_active(int idx_port) 69 { 70 struct app_port *ptr_port = &app_cfg.ports[idx_port]; 71 72 ptr_port->port_active = 1; 73 } 74 75 void mark_port_inactive(int idx_port) 76 { 77 struct app_port *ptr_port = &app_cfg.ports[idx_port]; 78 79 ptr_port->port_active = 0; 80 } 81 82 void mark_port_newmac(int idx_port) 83 { 84 struct app_port *ptr_port = &app_cfg.ports[idx_port]; 85 86 ptr_port->port_dirty = 1; 87 } 88 89 static void setup_ports(struct app_config *app_cfg, int cnt_ports) 90 { 91 int idx_port; 92 int size_pktpool; 93 struct rte_eth_conf cfg_port; 94 struct rte_eth_dev_info dev_info; 95 char str_name[16]; 96 uint16_t nb_rxd = PORT_RX_QUEUE_SIZE; 97 uint16_t nb_txd = PORT_TX_QUEUE_SIZE; 98 99 memset(&cfg_port, 0, sizeof(cfg_port)); 100 cfg_port.txmode.mq_mode = ETH_MQ_TX_NONE; 101 102 for (idx_port = 0; idx_port < cnt_ports; idx_port++) { 103 struct app_port *ptr_port = &app_cfg->ports[idx_port]; 104 105 rte_eth_dev_info_get(idx_port, &dev_info); 106 size_pktpool = dev_info.rx_desc_lim.nb_max + 107 dev_info.tx_desc_lim.nb_max + PKTPOOL_EXTRA_SIZE; 108 109 snprintf(str_name, 16, "pkt_pool%i", idx_port); 110 ptr_port->pkt_pool = rte_pktmbuf_pool_create( 111 str_name, 112 size_pktpool, PKTPOOL_CACHE, 113 0, 114 RTE_MBUF_DEFAULT_BUF_SIZE, 115 rte_socket_id() 116 ); 117 if (ptr_port->pkt_pool == NULL) 118 rte_exit(EXIT_FAILURE, 119 "rte_pktmbuf_pool_create failed" 120 ); 121 122 printf("Init port %i..\n", idx_port); 123 ptr_port->port_active = 1; 124 ptr_port->port_dirty = 0; 125 ptr_port->idx_port = idx_port; 126 127 if (rte_eth_dev_configure(idx_port, 1, 1, &cfg_port) < 0) 128 rte_exit(EXIT_FAILURE, 129 "rte_eth_dev_configure failed"); 130 if (rte_eth_dev_adjust_nb_rx_tx_desc(idx_port, &nb_rxd, 131 &nb_txd) < 0) 132 rte_exit(EXIT_FAILURE, 133 "rte_eth_dev_adjust_nb_rx_tx_desc failed"); 134 if (rte_eth_rx_queue_setup( 135 idx_port, 0, nb_rxd, 136 rte_eth_dev_socket_id(idx_port), NULL, 137 ptr_port->pkt_pool) < 0) 138 rte_exit(EXIT_FAILURE, 139 "rte_eth_rx_queue_setup failed" 140 ); 141 if (rte_eth_tx_queue_setup( 142 idx_port, 0, nb_txd, 143 rte_eth_dev_socket_id(idx_port), NULL) < 0) 144 rte_exit(EXIT_FAILURE, 145 "rte_eth_tx_queue_setup failed" 146 ); 147 if (rte_eth_dev_start(idx_port) < 0) 148 rte_exit(EXIT_FAILURE, 149 "%s:%i: rte_eth_dev_start failed", 150 __FILE__, __LINE__ 151 ); 152 rte_eth_macaddr_get(idx_port, &ptr_port->mac_addr); 153 rte_spinlock_init(&ptr_port->lock); 154 } 155 } 156 157 static void process_frame(struct app_port *ptr_port, 158 struct rte_mbuf *ptr_frame) 159 { 160 struct ether_hdr *ptr_mac_hdr; 161 162 ptr_mac_hdr = rte_pktmbuf_mtod(ptr_frame, struct ether_hdr *); 163 ether_addr_copy(&ptr_mac_hdr->s_addr, &ptr_mac_hdr->d_addr); 164 ether_addr_copy(&ptr_port->mac_addr, &ptr_mac_hdr->s_addr); 165 } 166 167 static int slave_main(__attribute__((unused)) void *ptr_data) 168 { 169 struct app_port *ptr_port; 170 struct rte_mbuf *ptr_frame; 171 struct txq_port *txq; 172 173 uint16_t cnt_recv_frames; 174 uint16_t idx_frame; 175 uint16_t cnt_sent; 176 uint16_t idx_port; 177 uint16_t lock_result; 178 179 while (app_cfg.exit_now == 0) { 180 for (idx_port = 0; idx_port < app_cfg.cnt_ports; idx_port++) { 181 /* Check that port is active and unlocked */ 182 ptr_port = &app_cfg.ports[idx_port]; 183 lock_result = rte_spinlock_trylock(&ptr_port->lock); 184 if (lock_result == 0) 185 continue; 186 if (ptr_port->port_active == 0) { 187 rte_spinlock_unlock(&ptr_port->lock); 188 continue; 189 } 190 txq = &ptr_port->txq; 191 192 /* MAC address was updated */ 193 if (ptr_port->port_dirty == 1) { 194 rte_eth_macaddr_get(ptr_port->idx_port, 195 &ptr_port->mac_addr); 196 ptr_port->port_dirty = 0; 197 } 198 199 /* Incoming frames */ 200 cnt_recv_frames = rte_eth_rx_burst( 201 ptr_port->idx_port, 0, 202 &txq->buf_frames[txq->cnt_unsent], 203 RTE_DIM(txq->buf_frames) - txq->cnt_unsent 204 ); 205 if (cnt_recv_frames > 0) { 206 for (idx_frame = 0; 207 idx_frame < cnt_recv_frames; 208 idx_frame++) { 209 ptr_frame = txq->buf_frames[ 210 idx_frame + txq->cnt_unsent]; 211 process_frame(ptr_port, ptr_frame); 212 } 213 txq->cnt_unsent += cnt_recv_frames; 214 } 215 216 /* Outgoing frames */ 217 if (txq->cnt_unsent > 0) { 218 cnt_sent = rte_eth_tx_burst( 219 ptr_port->idx_port, 0, 220 txq->buf_frames, 221 txq->cnt_unsent 222 ); 223 /* Shuffle up unsent frame pointers */ 224 for (idx_frame = cnt_sent; 225 idx_frame < txq->cnt_unsent; 226 idx_frame++) 227 txq->buf_frames[idx_frame - cnt_sent] = 228 txq->buf_frames[idx_frame]; 229 txq->cnt_unsent -= cnt_sent; 230 } 231 rte_spinlock_unlock(&ptr_port->lock); 232 } /* end for( idx_port ) */ 233 } /* end for(;;) */ 234 235 return 0; 236 } 237 238 int main(int argc, char **argv) 239 { 240 int cnt_args_parsed; 241 uint32_t id_core; 242 uint32_t cnt_ports; 243 244 /* Init runtime environment */ 245 cnt_args_parsed = rte_eal_init(argc, argv); 246 if (cnt_args_parsed < 0) 247 rte_exit(EXIT_FAILURE, "rte_eal_init(): Failed"); 248 249 cnt_ports = rte_eth_dev_count(); 250 printf("Number of NICs: %i\n", cnt_ports); 251 if (cnt_ports == 0) 252 rte_exit(EXIT_FAILURE, "No available NIC ports!\n"); 253 if (cnt_ports > MAX_PORTS) { 254 printf("Info: Using only %i of %i ports\n", 255 cnt_ports, MAX_PORTS 256 ); 257 cnt_ports = MAX_PORTS; 258 } 259 260 setup_ports(&app_cfg, cnt_ports); 261 262 app_cfg.exit_now = 0; 263 app_cfg.cnt_ports = cnt_ports; 264 265 if (rte_lcore_count() < 2) 266 rte_exit(EXIT_FAILURE, "No available slave core!\n"); 267 /* Assume there is an available slave.. */ 268 id_core = rte_lcore_id(); 269 id_core = rte_get_next_lcore(id_core, 1, 1); 270 rte_eal_remote_launch(slave_main, NULL, id_core); 271 272 ethapp_main(); 273 274 app_cfg.exit_now = 1; 275 RTE_LCORE_FOREACH_SLAVE(id_core) { 276 if (rte_eal_wait_lcore(id_core) < 0) 277 return -1; 278 } 279 280 return 0; 281 } 282