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37 #include <sys/queue.h>
42 #include <rte_common.h>
43 #include <rte_memory.h>
44 #include <rte_memzone.h>
46 #include <rte_byteorder.h>
47 #include <rte_atomic.h>
48 #include <rte_launch.h>
49 #include <rte_per_lcore.h>
50 #include <rte_lcore.h>
51 #include <rte_branch_prediction.h>
52 #include <rte_debug.h>
55 #include <rte_mempool.h>
56 #include <rte_memcpy.h>
58 #include <rte_interrupts.h>
60 #include <rte_ether.h>
61 #include <rte_ethdev.h>
62 #include <rte_malloc.h>
63 #include <rte_fbk_hash.h>
64 #include <rte_string_fns.h>
65 #include <rte_cycles.h>
71 #define MBUFS_PER_CLIENT 1536
72 #define MBUFS_PER_PORT 1536
73 #define MBUF_CACHE_SIZE 512
74 #define MBUF_DATA_SIZE (2048 + RTE_PKTMBUF_HEADROOM)
76 #define RTE_MP_RX_DESC_DEFAULT 512
77 #define RTE_MP_TX_DESC_DEFAULT 512
78 #define CLIENT_QUEUE_RINGSIZE 128
82 /* The mbuf pool for packet rx */
83 struct rte_mempool *pktmbuf_pool;
85 /* array of info/queues for clients */
86 struct client *clients = NULL;
88 /* the port details */
89 struct port_info *ports;
92 * Initialise the mbuf pool for packet reception for the NIC, and any other
93 * buffer pools needed by the app - currently none.
98 const unsigned num_mbufs = (num_clients * MBUFS_PER_CLIENT) \
99 + (ports->num_ports * MBUFS_PER_PORT);
101 /* don't pass single-producer/single-consumer flags to mbuf create as it
102 * seems faster to use a cache instead */
103 printf("Creating mbuf pool '%s' [%u mbufs] ...\n",
104 PKTMBUF_POOL_NAME, num_mbufs);
105 pktmbuf_pool = rte_pktmbuf_pool_create(PKTMBUF_POOL_NAME, num_mbufs,
106 MBUF_CACHE_SIZE, 0, MBUF_DATA_SIZE, rte_socket_id());
108 return (pktmbuf_pool == NULL); /* 0 on success */
112 * Initialise an individual port:
113 * - configure number of rx and tx rings
114 * - set up each rx ring, to pull from the main mbuf pool
115 * - set up each tx ring
116 * - start the port and report its status to stdout
119 init_port(uint8_t port_num)
121 /* for port configuration all features are off by default */
122 const struct rte_eth_conf port_conf = {
124 .mq_mode = ETH_MQ_RX_RSS
127 const uint16_t rx_rings = 1, tx_rings = num_clients;
128 const uint16_t rx_ring_size = RTE_MP_RX_DESC_DEFAULT;
129 const uint16_t tx_ring_size = RTE_MP_TX_DESC_DEFAULT;
134 printf("Port %u init ... ", (unsigned)port_num);
137 /* Standard DPDK port initialisation - config port, then set up
139 if ((retval = rte_eth_dev_configure(port_num, rx_rings, tx_rings,
143 for (q = 0; q < rx_rings; q++) {
144 retval = rte_eth_rx_queue_setup(port_num, q, rx_ring_size,
145 rte_eth_dev_socket_id(port_num),
147 if (retval < 0) return retval;
150 for ( q = 0; q < tx_rings; q ++ ) {
151 retval = rte_eth_tx_queue_setup(port_num, q, tx_ring_size,
152 rte_eth_dev_socket_id(port_num),
154 if (retval < 0) return retval;
157 rte_eth_promiscuous_enable(port_num);
159 retval = rte_eth_dev_start(port_num);
160 if (retval < 0) return retval;
168 * Set up the DPDK rings which will be used to pass packets, via
169 * pointers, between the multi-process server and client processes.
170 * Each client needs one RX queue.
178 const unsigned ringsize = CLIENT_QUEUE_RINGSIZE;
180 clients = rte_malloc("client details",
181 sizeof(*clients) * num_clients, 0);
183 rte_exit(EXIT_FAILURE, "Cannot allocate memory for client program details\n");
185 for (i = 0; i < num_clients; i++) {
186 /* Create an RX queue for each client */
187 socket_id = rte_socket_id();
188 q_name = get_rx_queue_name(i);
189 clients[i].rx_q = rte_ring_create(q_name,
191 RING_F_SP_ENQ | RING_F_SC_DEQ ); /* single prod, single cons */
192 if (clients[i].rx_q == NULL)
193 rte_exit(EXIT_FAILURE, "Cannot create rx ring queue for client %u\n", i);
198 /* Check the link status of all ports in up to 9s, and print them finally */
200 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
202 #define CHECK_INTERVAL 100 /* 100ms */
203 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
204 uint8_t portid, count, all_ports_up, print_flag = 0;
205 struct rte_eth_link link;
207 printf("\nChecking link status");
209 for (count = 0; count <= MAX_CHECK_TIME; count++) {
211 for (portid = 0; portid < port_num; portid++) {
212 if ((port_mask & (1 << ports->id[portid])) == 0)
214 memset(&link, 0, sizeof(link));
215 rte_eth_link_get_nowait(ports->id[portid], &link);
216 /* print link status if flag set */
217 if (print_flag == 1) {
218 if (link.link_status)
219 printf("Port %d Link Up - speed %u "
220 "Mbps - %s\n", ports->id[portid],
221 (unsigned)link.link_speed,
222 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
223 ("full-duplex") : ("half-duplex\n"));
225 printf("Port %d Link Down\n",
226 (uint8_t)ports->id[portid]);
229 /* clear all_ports_up flag if any link down */
230 if (link.link_status == 0) {
235 /* after finally printing all link status, get out */
239 if (all_ports_up == 0) {
242 rte_delay_ms(CHECK_INTERVAL);
245 /* set the print_flag if all ports up or timeout */
246 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
254 * Main init function for the multi-process server app,
255 * calls subfunctions to do each stage of the initialisation.
258 init(int argc, char *argv[])
261 const struct rte_memzone *mz;
262 uint8_t i, total_ports;
264 /* init EAL, parsing EAL args */
265 retval = rte_eal_init(argc, argv);
271 /* get total number of ports */
272 total_ports = rte_eth_dev_count();
274 /* set up array for port data */
275 mz = rte_memzone_reserve(MZ_PORT_INFO, sizeof(*ports),
276 rte_socket_id(), NO_FLAGS);
278 rte_exit(EXIT_FAILURE, "Cannot reserve memory zone for port information\n");
279 memset(mz->addr, 0, sizeof(*ports));
282 /* parse additional, application arguments */
283 retval = parse_app_args(total_ports, argc, argv);
287 /* initialise mbuf pools */
288 retval = init_mbuf_pools();
290 rte_exit(EXIT_FAILURE, "Cannot create needed mbuf pools\n");
292 /* now initialise the ports we will use */
293 for (i = 0; i < ports->num_ports; i++) {
294 retval = init_port(ports->id[i]);
296 rte_exit(EXIT_FAILURE, "Cannot initialise port %u\n",
300 check_all_ports_link_status(ports->num_ports, (~0x0));
302 /* initialise the client queues/rings for inter-eu comms */