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37 #include <sys/queue.h>
42 #include <rte_common.h>
43 #include <rte_memory.h>
44 #include <rte_memzone.h>
45 #include <rte_tailq.h>
47 #include <rte_byteorder.h>
48 #include <rte_atomic.h>
49 #include <rte_launch.h>
50 #include <rte_per_lcore.h>
51 #include <rte_lcore.h>
52 #include <rte_branch_prediction.h>
53 #include <rte_debug.h>
56 #include <rte_mempool.h>
57 #include <rte_memcpy.h>
59 #include <rte_interrupts.h>
61 #include <rte_ether.h>
62 #include <rte_ethdev.h>
63 #include <rte_malloc.h>
64 #include <rte_fbk_hash.h>
65 #include <rte_string_fns.h>
66 #include <rte_cycles.h>
72 #define MBUFS_PER_CLIENT 1536
73 #define MBUFS_PER_PORT 1536
74 #define MBUF_CACHE_SIZE 512
75 #define MBUF_OVERHEAD (sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
76 #define RX_MBUF_DATA_SIZE 2048
77 #define MBUF_SIZE (RX_MBUF_DATA_SIZE + MBUF_OVERHEAD)
79 #define RTE_MP_RX_DESC_DEFAULT 512
80 #define RTE_MP_TX_DESC_DEFAULT 512
81 #define CLIENT_QUEUE_RINGSIZE 128
85 /* The mbuf pool for packet rx */
86 struct rte_mempool *pktmbuf_pool;
88 /* array of info/queues for clients */
89 struct client *clients = NULL;
91 /* the port details */
92 struct port_info *ports;
95 * Initialise the mbuf pool for packet reception for the NIC, and any other
96 * buffer pools needed by the app - currently none.
101 const unsigned num_mbufs = (num_clients * MBUFS_PER_CLIENT) \
102 + (ports->num_ports * MBUFS_PER_PORT);
104 /* don't pass single-producer/single-consumer flags to mbuf create as it
105 * seems faster to use a cache instead */
106 printf("Creating mbuf pool '%s' [%u mbufs] ...\n",
107 PKTMBUF_POOL_NAME, num_mbufs);
108 pktmbuf_pool = rte_mempool_create(PKTMBUF_POOL_NAME, num_mbufs,
109 MBUF_SIZE, MBUF_CACHE_SIZE,
110 sizeof(struct rte_pktmbuf_pool_private), rte_pktmbuf_pool_init,
111 NULL, rte_pktmbuf_init, NULL, rte_socket_id(), NO_FLAGS );
113 return (pktmbuf_pool == NULL); /* 0 on success */
117 * Initialise an individual port:
118 * - configure number of rx and tx rings
119 * - set up each rx ring, to pull from the main mbuf pool
120 * - set up each tx ring
121 * - start the port and report its status to stdout
124 init_port(uint8_t port_num)
126 /* for port configuration all features are off by default */
127 const struct rte_eth_conf port_conf = {
129 .mq_mode = ETH_MQ_RX_RSS
132 const uint16_t rx_rings = 1, tx_rings = num_clients;
133 const uint16_t rx_ring_size = RTE_MP_RX_DESC_DEFAULT;
134 const uint16_t tx_ring_size = RTE_MP_TX_DESC_DEFAULT;
139 printf("Port %u init ... ", (unsigned)port_num);
142 /* Standard DPDK port initialisation - config port, then set up
144 if ((retval = rte_eth_dev_configure(port_num, rx_rings, tx_rings,
148 for (q = 0; q < rx_rings; q++) {
149 retval = rte_eth_rx_queue_setup(port_num, q, rx_ring_size,
150 rte_eth_dev_socket_id(port_num),
152 if (retval < 0) return retval;
155 for ( q = 0; q < tx_rings; q ++ ) {
156 retval = rte_eth_tx_queue_setup(port_num, q, tx_ring_size,
157 rte_eth_dev_socket_id(port_num),
159 if (retval < 0) return retval;
162 rte_eth_promiscuous_enable(port_num);
164 retval = rte_eth_dev_start(port_num);
165 if (retval < 0) return retval;
173 * Set up the DPDK rings which will be used to pass packets, via
174 * pointers, between the multi-process server and client processes.
175 * Each client needs one RX queue.
183 const unsigned ringsize = CLIENT_QUEUE_RINGSIZE;
185 clients = rte_malloc("client details",
186 sizeof(*clients) * num_clients, 0);
188 rte_exit(EXIT_FAILURE, "Cannot allocate memory for client program details\n");
190 for (i = 0; i < num_clients; i++) {
191 /* Create an RX queue for each client */
192 socket_id = rte_socket_id();
193 q_name = get_rx_queue_name(i);
194 clients[i].rx_q = rte_ring_create(q_name,
196 RING_F_SP_ENQ | RING_F_SC_DEQ ); /* single prod, single cons */
197 if (clients[i].rx_q == NULL)
198 rte_exit(EXIT_FAILURE, "Cannot create rx ring queue for client %u\n", i);
203 /* Check the link status of all ports in up to 9s, and print them finally */
205 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
207 #define CHECK_INTERVAL 100 /* 100ms */
208 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
209 uint8_t portid, count, all_ports_up, print_flag = 0;
210 struct rte_eth_link link;
212 printf("\nChecking link status");
214 for (count = 0; count <= MAX_CHECK_TIME; count++) {
216 for (portid = 0; portid < port_num; portid++) {
217 if ((port_mask & (1 << ports->id[portid])) == 0)
219 memset(&link, 0, sizeof(link));
220 rte_eth_link_get_nowait(ports->id[portid], &link);
221 /* print link status if flag set */
222 if (print_flag == 1) {
223 if (link.link_status)
224 printf("Port %d Link Up - speed %u "
225 "Mbps - %s\n", ports->id[portid],
226 (unsigned)link.link_speed,
227 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
228 ("full-duplex") : ("half-duplex\n"));
230 printf("Port %d Link Down\n",
231 (uint8_t)ports->id[portid]);
234 /* clear all_ports_up flag if any link down */
235 if (link.link_status == 0) {
240 /* after finally printing all link status, get out */
244 if (all_ports_up == 0) {
247 rte_delay_ms(CHECK_INTERVAL);
250 /* set the print_flag if all ports up or timeout */
251 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
259 * Main init function for the multi-process server app,
260 * calls subfunctions to do each stage of the initialisation.
263 init(int argc, char *argv[])
266 const struct rte_memzone *mz;
267 uint8_t i, total_ports;
269 /* init EAL, parsing EAL args */
270 retval = rte_eal_init(argc, argv);
276 /* get total number of ports */
277 total_ports = rte_eth_dev_count();
279 /* set up array for port data */
280 mz = rte_memzone_reserve(MZ_PORT_INFO, sizeof(*ports),
281 rte_socket_id(), NO_FLAGS);
283 rte_exit(EXIT_FAILURE, "Cannot reserve memory zone for port information\n");
284 memset(mz->addr, 0, sizeof(*ports));
287 /* parse additional, application arguments */
288 retval = parse_app_args(total_ports, argc, argv);
292 /* initialise mbuf pools */
293 retval = init_mbuf_pools();
295 rte_exit(EXIT_FAILURE, "Cannot create needed mbuf pools\n");
297 /* now initialise the ports we will use */
298 for (i = 0; i < ports->num_ports; i++) {
299 retval = init_port(ports->id[i]);
301 rte_exit(EXIT_FAILURE, "Cannot initialise port %u\n",
305 check_all_ports_link_status(ports->num_ports, (~0x0));
307 /* initialise the client queues/rings for inter-eu comms */