1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2017 Mellanox Technologies, Ltd
3 */
4
5 #include <stdio.h>
6 #include <stdlib.h>
7 #include <string.h>
8 #include <stdint.h>
9 #include <inttypes.h>
10 #include <sys/types.h>
11 #include <sys/queue.h>
12 #include <netinet/in.h>
13 #include <setjmp.h>
14 #include <stdarg.h>
15 #include <ctype.h>
16 #include <errno.h>
17 #include <getopt.h>
18 #include <signal.h>
19 #include <stdbool.h>
20
21 #include <rte_eal.h>
22 #include <rte_common.h>
23 #include <rte_malloc.h>
24 #include <rte_ether.h>
25 #include <rte_ethdev.h>
26 #include <rte_mempool.h>
27 #include <rte_mbuf.h>
28 #include <rte_net.h>
29 #include <rte_flow.h>
30 #include <rte_cycles.h>
31
32 static volatile bool force_quit;
33
34 static uint16_t port_id;
35 static uint16_t nr_queues = 5;
36 static uint8_t selected_queue = 1;
37 struct rte_mempool *mbuf_pool;
38 struct rte_flow *flow;
39
40 #define SRC_IP ((0<<24) + (0<<16) + (0<<8) + 0) /* src ip = 0.0.0.0 */
41 #define DEST_IP ((192<<24) + (168<<16) + (1<<8) + 1) /* dest ip = 192.168.1.1 */
42 #define FULL_MASK 0xffffffff /* full mask */
43 #define EMPTY_MASK 0x0 /* empty mask */
44
45 #include "flow_blocks.c"
46
47 static inline void
print_ether_addr(const char * what,struct rte_ether_addr * eth_addr)48 print_ether_addr(const char *what, struct rte_ether_addr *eth_addr)
49 {
50 char buf[RTE_ETHER_ADDR_FMT_SIZE];
51 rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
52 printf("%s%s", what, buf);
53 }
54
55 static int
main_loop(void)56 main_loop(void)
57 {
58 struct rte_mbuf *mbufs[32];
59 struct rte_ether_hdr *eth_hdr;
60 struct rte_flow_error error;
61 uint16_t nb_rx;
62 uint16_t i;
63 uint16_t j;
64 int ret;
65
66 while (!force_quit) {
67 for (i = 0; i < nr_queues; i++) {
68 nb_rx = rte_eth_rx_burst(port_id,
69 i, mbufs, 32);
70 if (nb_rx) {
71 for (j = 0; j < nb_rx; j++) {
72 struct rte_mbuf *m = mbufs[j];
73
74 eth_hdr = rte_pktmbuf_mtod(m,
75 struct rte_ether_hdr *);
76 print_ether_addr("src=",
77 ð_hdr->s_addr);
78 print_ether_addr(" - dst=",
79 ð_hdr->d_addr);
80 printf(" - queue=0x%x",
81 (unsigned int)i);
82 printf("\n");
83
84 rte_pktmbuf_free(m);
85 }
86 }
87 }
88 }
89
90 /* closing and releasing resources */
91 rte_flow_flush(port_id, &error);
92 ret = rte_eth_dev_stop(port_id);
93 if (ret < 0)
94 printf("Failed to stop port %u: %s",
95 port_id, rte_strerror(-ret));
96 rte_eth_dev_close(port_id);
97 return ret;
98 }
99
100 #define CHECK_INTERVAL 1000 /* 100ms */
101 #define MAX_REPEAT_TIMES 90 /* 9s (90 * 100ms) in total */
102
103 static void
assert_link_status(void)104 assert_link_status(void)
105 {
106 struct rte_eth_link link;
107 uint8_t rep_cnt = MAX_REPEAT_TIMES;
108 int link_get_err = -EINVAL;
109
110 memset(&link, 0, sizeof(link));
111 do {
112 link_get_err = rte_eth_link_get(port_id, &link);
113 if (link_get_err == 0 && link.link_status == ETH_LINK_UP)
114 break;
115 rte_delay_ms(CHECK_INTERVAL);
116 } while (--rep_cnt);
117
118 if (link_get_err < 0)
119 rte_exit(EXIT_FAILURE, ":: error: link get is failing: %s\n",
120 rte_strerror(-link_get_err));
121 if (link.link_status == ETH_LINK_DOWN)
122 rte_exit(EXIT_FAILURE, ":: error: link is still down\n");
123 }
124
125 static void
init_port(void)126 init_port(void)
127 {
128 int ret;
129 uint16_t i;
130 struct rte_eth_conf port_conf = {
131 .rxmode = {
132 .split_hdr_size = 0,
133 },
134 .txmode = {
135 .offloads =
136 DEV_TX_OFFLOAD_VLAN_INSERT |
137 DEV_TX_OFFLOAD_IPV4_CKSUM |
138 DEV_TX_OFFLOAD_UDP_CKSUM |
139 DEV_TX_OFFLOAD_TCP_CKSUM |
140 DEV_TX_OFFLOAD_SCTP_CKSUM |
141 DEV_TX_OFFLOAD_TCP_TSO,
142 },
143 };
144 struct rte_eth_txconf txq_conf;
145 struct rte_eth_rxconf rxq_conf;
146 struct rte_eth_dev_info dev_info;
147
148 ret = rte_eth_dev_info_get(port_id, &dev_info);
149 if (ret != 0)
150 rte_exit(EXIT_FAILURE,
151 "Error during getting device (port %u) info: %s\n",
152 port_id, strerror(-ret));
153
154 port_conf.txmode.offloads &= dev_info.tx_offload_capa;
155 printf(":: initializing port: %d\n", port_id);
156 ret = rte_eth_dev_configure(port_id,
157 nr_queues, nr_queues, &port_conf);
158 if (ret < 0) {
159 rte_exit(EXIT_FAILURE,
160 ":: cannot configure device: err=%d, port=%u\n",
161 ret, port_id);
162 }
163
164 rxq_conf = dev_info.default_rxconf;
165 rxq_conf.offloads = port_conf.rxmode.offloads;
166 for (i = 0; i < nr_queues; i++) {
167 ret = rte_eth_rx_queue_setup(port_id, i, 512,
168 rte_eth_dev_socket_id(port_id),
169 &rxq_conf,
170 mbuf_pool);
171 if (ret < 0) {
172 rte_exit(EXIT_FAILURE,
173 ":: Rx queue setup failed: err=%d, port=%u\n",
174 ret, port_id);
175 }
176 }
177
178 txq_conf = dev_info.default_txconf;
179 txq_conf.offloads = port_conf.txmode.offloads;
180
181 for (i = 0; i < nr_queues; i++) {
182 ret = rte_eth_tx_queue_setup(port_id, i, 512,
183 rte_eth_dev_socket_id(port_id),
184 &txq_conf);
185 if (ret < 0) {
186 rte_exit(EXIT_FAILURE,
187 ":: Tx queue setup failed: err=%d, port=%u\n",
188 ret, port_id);
189 }
190 }
191
192 ret = rte_eth_promiscuous_enable(port_id);
193 if (ret != 0)
194 rte_exit(EXIT_FAILURE,
195 ":: promiscuous mode enable failed: err=%s, port=%u\n",
196 rte_strerror(-ret), port_id);
197
198 ret = rte_eth_dev_start(port_id);
199 if (ret < 0) {
200 rte_exit(EXIT_FAILURE,
201 "rte_eth_dev_start:err=%d, port=%u\n",
202 ret, port_id);
203 }
204
205 assert_link_status();
206
207 printf(":: initializing port: %d done\n", port_id);
208 }
209
210 static void
signal_handler(int signum)211 signal_handler(int signum)
212 {
213 if (signum == SIGINT || signum == SIGTERM) {
214 printf("\n\nSignal %d received, preparing to exit...\n",
215 signum);
216 force_quit = true;
217 }
218 }
219
220 int
main(int argc,char ** argv)221 main(int argc, char **argv)
222 {
223 int ret;
224 uint16_t nr_ports;
225 struct rte_flow_error error;
226
227 ret = rte_eal_init(argc, argv);
228 if (ret < 0)
229 rte_exit(EXIT_FAILURE, ":: invalid EAL arguments\n");
230
231 force_quit = false;
232 signal(SIGINT, signal_handler);
233 signal(SIGTERM, signal_handler);
234
235 nr_ports = rte_eth_dev_count_avail();
236 if (nr_ports == 0)
237 rte_exit(EXIT_FAILURE, ":: no Ethernet ports found\n");
238 port_id = 0;
239 if (nr_ports != 1) {
240 printf(":: warn: %d ports detected, but we use only one: port %u\n",
241 nr_ports, port_id);
242 }
243 mbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", 4096, 128, 0,
244 RTE_MBUF_DEFAULT_BUF_SIZE,
245 rte_socket_id());
246 if (mbuf_pool == NULL)
247 rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
248
249 init_port();
250
251 /* create flow for send packet with */
252 flow = generate_ipv4_flow(port_id, selected_queue,
253 SRC_IP, EMPTY_MASK,
254 DEST_IP, FULL_MASK, &error);
255 if (!flow) {
256 printf("Flow can't be created %d message: %s\n",
257 error.type,
258 error.message ? error.message : "(no stated reason)");
259 rte_exit(EXIT_FAILURE, "error in creating flow");
260 }
261
262 return main_loop();
263 }
264