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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
75 #define RTE_MP_RX_DESC_DEFAULT 512
76 #define RTE_MP_TX_DESC_DEFAULT 512
77 #define CLIENT_QUEUE_RINGSIZE 128
81 /* The mbuf pool for packet rx */
82 struct rte_mempool *pktmbuf_pool;
84 /* array of info/queues for clients */
85 struct client *clients = NULL;
87 /* the port details */
88 struct port_info *ports;
91 * Initialise the mbuf pool for packet reception for the NIC, and any other
92 * buffer pools needed by the app - currently none.
97 const unsigned num_mbufs = (num_clients * MBUFS_PER_CLIENT) \
98 + (ports->num_ports * MBUFS_PER_PORT);
100 /* don't pass single-producer/single-consumer flags to mbuf create as it
101 * seems faster to use a cache instead */
102 printf("Creating mbuf pool '%s' [%u mbufs] ...\n",
103 PKTMBUF_POOL_NAME, num_mbufs);
104 pktmbuf_pool = rte_pktmbuf_pool_create(PKTMBUF_POOL_NAME, num_mbufs,
105 MBUF_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
107 return pktmbuf_pool == NULL; /* 0 on success */
111 * Initialise an individual port:
112 * - configure number of rx and tx rings
113 * - set up each rx ring, to pull from the main mbuf pool
114 * - set up each tx ring
115 * - start the port and report its status to stdout
118 init_port(uint8_t port_num)
120 /* for port configuration all features are off by default */
121 const struct rte_eth_conf port_conf = {
123 .mq_mode = ETH_MQ_RX_RSS
126 const uint16_t rx_rings = 1, tx_rings = num_clients;
127 const uint16_t rx_ring_size = RTE_MP_RX_DESC_DEFAULT;
128 const uint16_t tx_ring_size = RTE_MP_TX_DESC_DEFAULT;
133 printf("Port %u init ... ", (unsigned)port_num);
136 /* Standard DPDK port initialisation - config port, then set up
138 if ((retval = rte_eth_dev_configure(port_num, rx_rings, tx_rings,
142 for (q = 0; q < rx_rings; q++) {
143 retval = rte_eth_rx_queue_setup(port_num, q, rx_ring_size,
144 rte_eth_dev_socket_id(port_num),
146 if (retval < 0) return retval;
149 for ( q = 0; q < tx_rings; q ++ ) {
150 retval = rte_eth_tx_queue_setup(port_num, q, tx_ring_size,
151 rte_eth_dev_socket_id(port_num),
153 if (retval < 0) return retval;
156 rte_eth_promiscuous_enable(port_num);
158 retval = rte_eth_dev_start(port_num);
159 if (retval < 0) return retval;
167 * Set up the DPDK rings which will be used to pass packets, via
168 * pointers, between the multi-process server and client processes.
169 * Each client needs one RX queue.
177 const unsigned ringsize = CLIENT_QUEUE_RINGSIZE;
179 clients = rte_malloc("client details",
180 sizeof(*clients) * num_clients, 0);
182 rte_exit(EXIT_FAILURE, "Cannot allocate memory for client program details\n");
184 for (i = 0; i < num_clients; i++) {
185 /* Create an RX queue for each client */
186 socket_id = rte_socket_id();
187 q_name = get_rx_queue_name(i);
188 clients[i].rx_q = rte_ring_create(q_name,
190 RING_F_SP_ENQ | RING_F_SC_DEQ ); /* single prod, single cons */
191 if (clients[i].rx_q == NULL)
192 rte_exit(EXIT_FAILURE, "Cannot create rx ring queue for client %u\n", i);
197 /* Check the link status of all ports in up to 9s, and print them finally */
199 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
201 #define CHECK_INTERVAL 100 /* 100ms */
202 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
203 uint8_t portid, count, all_ports_up, print_flag = 0;
204 struct rte_eth_link link;
206 printf("\nChecking link status");
208 for (count = 0; count <= MAX_CHECK_TIME; count++) {
210 for (portid = 0; portid < port_num; portid++) {
211 if ((port_mask & (1 << ports->id[portid])) == 0)
213 memset(&link, 0, sizeof(link));
214 rte_eth_link_get_nowait(ports->id[portid], &link);
215 /* print link status if flag set */
216 if (print_flag == 1) {
217 if (link.link_status)
218 printf("Port %d Link Up - speed %u "
219 "Mbps - %s\n", ports->id[portid],
220 (unsigned)link.link_speed,
221 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
222 ("full-duplex") : ("half-duplex\n"));
224 printf("Port %d Link Down\n",
225 (uint8_t)ports->id[portid]);
228 /* clear all_ports_up flag if any link down */
229 if (link.link_status == ETH_LINK_DOWN) {
234 /* after finally printing all link status, get out */
238 if (all_ports_up == 0) {
241 rte_delay_ms(CHECK_INTERVAL);
244 /* set the print_flag if all ports up or timeout */
245 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
253 * Main init function for the multi-process server app,
254 * calls subfunctions to do each stage of the initialisation.
257 init(int argc, char *argv[])
260 const struct rte_memzone *mz;
261 uint8_t i, total_ports;
263 /* init EAL, parsing EAL args */
264 retval = rte_eal_init(argc, argv);
270 /* get total number of ports */
271 total_ports = rte_eth_dev_count();
273 /* set up array for port data */
274 mz = rte_memzone_reserve(MZ_PORT_INFO, sizeof(*ports),
275 rte_socket_id(), NO_FLAGS);
277 rte_exit(EXIT_FAILURE, "Cannot reserve memory zone for port information\n");
278 memset(mz->addr, 0, sizeof(*ports));
281 /* parse additional, application arguments */
282 retval = parse_app_args(total_ports, argc, argv);
286 /* initialise mbuf pools */
287 retval = init_mbuf_pools();
289 rte_exit(EXIT_FAILURE, "Cannot create needed mbuf pools\n");
291 /* now initialise the ports we will use */
292 for (i = 0; i < ports->num_ports; i++) {
293 retval = init_port(ports->id[i]);
295 rte_exit(EXIT_FAILURE, "Cannot initialise port %u\n",
299 check_all_ports_link_status(ports->num_ports, (~0x0));
301 /* initialise the client queues/rings for inter-eu comms */