1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation
13 #include <rte_common.h>
14 #include <rte_memory.h>
15 #include <rte_memzone.h>
17 #include <rte_byteorder.h>
18 #include <rte_atomic.h>
19 #include <rte_launch.h>
20 #include <rte_per_lcore.h>
21 #include <rte_lcore.h>
22 #include <rte_branch_prediction.h>
23 #include <rte_debug.h>
26 #include <rte_mempool.h>
27 #include <rte_memcpy.h>
29 #include <rte_interrupts.h>
30 #include <rte_ether.h>
31 #include <rte_ethdev.h>
32 #include <rte_malloc.h>
33 #include <rte_string_fns.h>
34 #include <rte_cycles.h>
40 #define MBUFS_PER_CLIENT 1536
41 #define MBUFS_PER_PORT 1536
42 #define MBUF_CACHE_SIZE 512
44 #define RTE_MP_RX_DESC_DEFAULT 1024
45 #define RTE_MP_TX_DESC_DEFAULT 1024
46 #define CLIENT_QUEUE_RINGSIZE 128
50 /* The mbuf pool for packet rx */
51 struct rte_mempool *pktmbuf_pool;
53 /* array of info/queues for clients */
54 struct client *clients = NULL;
56 /* the port details */
57 struct port_info *ports;
60 * Initialise the mbuf pool for packet reception for the NIC, and any other
61 * buffer pools needed by the app - currently none.
66 const unsigned num_mbufs = (num_clients * MBUFS_PER_CLIENT) \
67 + (ports->num_ports * MBUFS_PER_PORT);
69 /* don't pass single-producer/single-consumer flags to mbuf create as it
70 * seems faster to use a cache instead */
71 printf("Creating mbuf pool '%s' [%u mbufs] ...\n",
72 PKTMBUF_POOL_NAME, num_mbufs);
73 pktmbuf_pool = rte_pktmbuf_pool_create(PKTMBUF_POOL_NAME, num_mbufs,
74 MBUF_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
76 return pktmbuf_pool == NULL; /* 0 on success */
80 * Initialise an individual port:
81 * - configure number of rx and tx rings
82 * - set up each rx ring, to pull from the main mbuf pool
83 * - set up each tx ring
84 * - start the port and report its status to stdout
87 init_port(uint16_t port_num)
89 /* for port configuration all features are off by default */
90 const struct rte_eth_conf port_conf = {
92 .mq_mode = ETH_MQ_RX_RSS
95 const uint16_t rx_rings = 1, tx_rings = num_clients;
96 uint16_t rx_ring_size = RTE_MP_RX_DESC_DEFAULT;
97 uint16_t tx_ring_size = RTE_MP_TX_DESC_DEFAULT;
102 printf("Port %u init ... ", port_num);
105 /* Standard DPDK port initialisation - config port, then set up
107 if ((retval = rte_eth_dev_configure(port_num, rx_rings, tx_rings,
111 retval = rte_eth_dev_adjust_nb_rx_tx_desc(port_num, &rx_ring_size,
116 for (q = 0; q < rx_rings; q++) {
117 retval = rte_eth_rx_queue_setup(port_num, q, rx_ring_size,
118 rte_eth_dev_socket_id(port_num),
120 if (retval < 0) return retval;
123 for ( q = 0; q < tx_rings; q ++ ) {
124 retval = rte_eth_tx_queue_setup(port_num, q, tx_ring_size,
125 rte_eth_dev_socket_id(port_num),
127 if (retval < 0) return retval;
130 rte_eth_promiscuous_enable(port_num);
132 retval = rte_eth_dev_start(port_num);
133 if (retval < 0) return retval;
141 * Set up the DPDK rings which will be used to pass packets, via
142 * pointers, between the multi-process server and client processes.
143 * Each client needs one RX queue.
151 const unsigned ringsize = CLIENT_QUEUE_RINGSIZE;
153 clients = rte_malloc("client details",
154 sizeof(*clients) * num_clients, 0);
156 rte_exit(EXIT_FAILURE, "Cannot allocate memory for client program details\n");
158 for (i = 0; i < num_clients; i++) {
159 /* Create an RX queue for each client */
160 socket_id = rte_socket_id();
161 q_name = get_rx_queue_name(i);
162 clients[i].rx_q = rte_ring_create(q_name,
164 RING_F_SP_ENQ | RING_F_SC_DEQ ); /* single prod, single cons */
165 if (clients[i].rx_q == NULL)
166 rte_exit(EXIT_FAILURE, "Cannot create rx ring queue for client %u\n", i);
171 /* Check the link status of all ports in up to 9s, and print them finally */
173 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
175 #define CHECK_INTERVAL 100 /* 100ms */
176 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
178 uint8_t count, all_ports_up, print_flag = 0;
179 struct rte_eth_link link;
181 printf("\nChecking link status");
183 for (count = 0; count <= MAX_CHECK_TIME; count++) {
185 for (portid = 0; portid < port_num; portid++) {
186 if ((port_mask & (1 << ports->id[portid])) == 0)
188 memset(&link, 0, sizeof(link));
189 rte_eth_link_get_nowait(ports->id[portid], &link);
190 /* print link status if flag set */
191 if (print_flag == 1) {
192 if (link.link_status)
193 printf("Port %d Link Up - speed %u "
194 "Mbps - %s\n", ports->id[portid],
195 (unsigned)link.link_speed,
196 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
197 ("full-duplex") : ("half-duplex\n"));
199 printf("Port %d Link Down\n",
200 (uint8_t)ports->id[portid]);
203 /* clear all_ports_up flag if any link down */
204 if (link.link_status == ETH_LINK_DOWN) {
209 /* after finally printing all link status, get out */
213 if (all_ports_up == 0) {
216 rte_delay_ms(CHECK_INTERVAL);
219 /* set the print_flag if all ports up or timeout */
220 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
228 * Main init function for the multi-process server app,
229 * calls subfunctions to do each stage of the initialisation.
232 init(int argc, char *argv[])
235 const struct rte_memzone *mz;
236 uint16_t i, total_ports;
238 /* init EAL, parsing EAL args */
239 retval = rte_eal_init(argc, argv);
245 /* get total number of ports */
246 total_ports = rte_eth_dev_count_total();
248 /* set up array for port data */
249 mz = rte_memzone_reserve(MZ_PORT_INFO, sizeof(*ports),
250 rte_socket_id(), NO_FLAGS);
252 rte_exit(EXIT_FAILURE, "Cannot reserve memory zone for port information\n");
253 memset(mz->addr, 0, sizeof(*ports));
256 /* parse additional, application arguments */
257 retval = parse_app_args(total_ports, argc, argv);
261 /* initialise mbuf pools */
262 retval = init_mbuf_pools();
264 rte_exit(EXIT_FAILURE, "Cannot create needed mbuf pools\n");
266 /* now initialise the ports we will use */
267 for (i = 0; i < ports->num_ports; i++) {
268 retval = init_port(ports->id[i]);
270 rte_exit(EXIT_FAILURE, "Cannot initialise port %u\n",
274 check_all_ports_link_status(ports->num_ports, (~0x0));
276 /* initialise the client queues/rings for inter-eu comms */