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