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