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 1024 24 #define PORT_TX_QUEUE_SIZE 1024 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 rte_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 int ret; 99 100 memset(&cfg_port, 0, sizeof(cfg_port)); 101 cfg_port.txmode.mq_mode = ETH_MQ_TX_NONE; 102 103 for (idx_port = 0; idx_port < cnt_ports; idx_port++) { 104 struct app_port *ptr_port = &app_cfg->ports[idx_port]; 105 106 ret = rte_eth_dev_info_get(idx_port, &dev_info); 107 if (ret != 0) 108 rte_exit(EXIT_FAILURE, 109 "Error during getting device (port %u) info: %s\n", 110 idx_port, strerror(-ret)); 111 112 size_pktpool = dev_info.rx_desc_lim.nb_max + 113 dev_info.tx_desc_lim.nb_max + PKTPOOL_EXTRA_SIZE; 114 115 snprintf(str_name, 16, "pkt_pool%i", idx_port); 116 ptr_port->pkt_pool = rte_pktmbuf_pool_create( 117 str_name, 118 size_pktpool, PKTPOOL_CACHE, 119 0, 120 RTE_MBUF_DEFAULT_BUF_SIZE, 121 rte_socket_id() 122 ); 123 if (ptr_port->pkt_pool == NULL) 124 rte_exit(EXIT_FAILURE, 125 "rte_pktmbuf_pool_create failed" 126 ); 127 128 printf("Init port %i..\n", idx_port); 129 ptr_port->port_active = 1; 130 ptr_port->port_dirty = 0; 131 ptr_port->idx_port = idx_port; 132 133 if (rte_eth_dev_configure(idx_port, 1, 1, &cfg_port) < 0) 134 rte_exit(EXIT_FAILURE, 135 "rte_eth_dev_configure failed"); 136 if (rte_eth_dev_adjust_nb_rx_tx_desc(idx_port, &nb_rxd, 137 &nb_txd) < 0) 138 rte_exit(EXIT_FAILURE, 139 "rte_eth_dev_adjust_nb_rx_tx_desc failed"); 140 141 if (rte_eth_rx_queue_setup( 142 idx_port, 0, nb_rxd, 143 rte_eth_dev_socket_id(idx_port), NULL, 144 ptr_port->pkt_pool) < 0) 145 rte_exit(EXIT_FAILURE, 146 "rte_eth_rx_queue_setup failed" 147 ); 148 if (rte_eth_tx_queue_setup( 149 idx_port, 0, nb_txd, 150 rte_eth_dev_socket_id(idx_port), NULL) < 0) 151 rte_exit(EXIT_FAILURE, 152 "rte_eth_tx_queue_setup failed" 153 ); 154 if (rte_eth_dev_start(idx_port) < 0) 155 rte_exit(EXIT_FAILURE, 156 "%s:%i: rte_eth_dev_start failed", 157 __FILE__, __LINE__ 158 ); 159 rte_eth_macaddr_get(idx_port, &ptr_port->mac_addr); 160 rte_spinlock_init(&ptr_port->lock); 161 } 162 } 163 164 static void process_frame(struct app_port *ptr_port, 165 struct rte_mbuf *ptr_frame) 166 { 167 struct rte_ether_hdr *ptr_mac_hdr; 168 169 ptr_mac_hdr = rte_pktmbuf_mtod(ptr_frame, struct rte_ether_hdr *); 170 rte_ether_addr_copy(&ptr_mac_hdr->s_addr, &ptr_mac_hdr->d_addr); 171 rte_ether_addr_copy(&ptr_port->mac_addr, &ptr_mac_hdr->s_addr); 172 } 173 174 static int slave_main(__attribute__((unused)) void *ptr_data) 175 { 176 struct app_port *ptr_port; 177 struct rte_mbuf *ptr_frame; 178 struct txq_port *txq; 179 180 uint16_t cnt_recv_frames; 181 uint16_t idx_frame; 182 uint16_t cnt_sent; 183 uint16_t idx_port; 184 uint16_t lock_result; 185 186 while (app_cfg.exit_now == 0) { 187 for (idx_port = 0; idx_port < app_cfg.cnt_ports; idx_port++) { 188 /* Check that port is active and unlocked */ 189 ptr_port = &app_cfg.ports[idx_port]; 190 lock_result = rte_spinlock_trylock(&ptr_port->lock); 191 if (lock_result == 0) 192 continue; 193 if (ptr_port->port_active == 0) { 194 rte_spinlock_unlock(&ptr_port->lock); 195 continue; 196 } 197 txq = &ptr_port->txq; 198 199 /* MAC address was updated */ 200 if (ptr_port->port_dirty == 1) { 201 rte_eth_macaddr_get(ptr_port->idx_port, 202 &ptr_port->mac_addr); 203 ptr_port->port_dirty = 0; 204 } 205 206 /* Incoming frames */ 207 cnt_recv_frames = rte_eth_rx_burst( 208 ptr_port->idx_port, 0, 209 &txq->buf_frames[txq->cnt_unsent], 210 RTE_DIM(txq->buf_frames) - txq->cnt_unsent 211 ); 212 if (cnt_recv_frames > 0) { 213 for (idx_frame = 0; 214 idx_frame < cnt_recv_frames; 215 idx_frame++) { 216 ptr_frame = txq->buf_frames[ 217 idx_frame + txq->cnt_unsent]; 218 process_frame(ptr_port, ptr_frame); 219 } 220 txq->cnt_unsent += cnt_recv_frames; 221 } 222 223 /* Outgoing frames */ 224 if (txq->cnt_unsent > 0) { 225 cnt_sent = rte_eth_tx_burst( 226 ptr_port->idx_port, 0, 227 txq->buf_frames, 228 txq->cnt_unsent 229 ); 230 /* Shuffle up unsent frame pointers */ 231 for (idx_frame = cnt_sent; 232 idx_frame < txq->cnt_unsent; 233 idx_frame++) 234 txq->buf_frames[idx_frame - cnt_sent] = 235 txq->buf_frames[idx_frame]; 236 txq->cnt_unsent -= cnt_sent; 237 } 238 rte_spinlock_unlock(&ptr_port->lock); 239 } /* end for( idx_port ) */ 240 } /* end for(;;) */ 241 242 return 0; 243 } 244 245 int main(int argc, char **argv) 246 { 247 int cnt_args_parsed; 248 uint32_t id_core; 249 uint32_t cnt_ports; 250 251 /* Init runtime environment */ 252 cnt_args_parsed = rte_eal_init(argc, argv); 253 if (cnt_args_parsed < 0) 254 rte_exit(EXIT_FAILURE, "rte_eal_init(): Failed"); 255 256 cnt_ports = rte_eth_dev_count_avail(); 257 printf("Number of NICs: %i\n", cnt_ports); 258 if (cnt_ports == 0) 259 rte_exit(EXIT_FAILURE, "No available NIC ports!\n"); 260 if (cnt_ports > MAX_PORTS) { 261 printf("Info: Using only %i of %i ports\n", 262 cnt_ports, MAX_PORTS 263 ); 264 cnt_ports = MAX_PORTS; 265 } 266 267 setup_ports(&app_cfg, cnt_ports); 268 269 app_cfg.exit_now = 0; 270 app_cfg.cnt_ports = cnt_ports; 271 272 if (rte_lcore_count() < 2) 273 rte_exit(EXIT_FAILURE, "No available slave core!\n"); 274 /* Assume there is an available slave.. */ 275 id_core = rte_lcore_id(); 276 id_core = rte_get_next_lcore(id_core, 1, 1); 277 rte_eal_remote_launch(slave_main, NULL, id_core); 278 279 ethapp_main(); 280 281 app_cfg.exit_now = 1; 282 RTE_LCORE_FOREACH_SLAVE(id_core) { 283 if (rte_eal_wait_lcore(id_core) < 0) 284 return -1; 285 } 286 287 return 0; 288 } 289