summaryrefslogtreecommitdiffstats
path: root/examples/ethtool/ethtool-app/main.c
blob: dc93adfe3a6c1475109341de78106afa52245f7c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2015 Intel Corporation
 */


#include <stdio.h>
#include <stdlib.h>

#include <rte_common.h>
#include <rte_spinlock.h>
#include <rte_eal.h>
#include <rte_ethdev.h>
#include <rte_ether.h>
#include <rte_ip.h>
#include <rte_memory.h>
#include <rte_mempool.h>
#include <rte_mbuf.h>

#include "ethapp.h"

#define MAX_PORTS RTE_MAX_ETHPORTS
#define MAX_BURST_LENGTH 32
#define PORT_RX_QUEUE_SIZE 1024
#define PORT_TX_QUEUE_SIZE 1024
#define PKTPOOL_EXTRA_SIZE 512
#define PKTPOOL_CACHE 32


struct txq_port {
	uint16_t cnt_unsent;
	struct rte_mbuf *buf_frames[MAX_BURST_LENGTH];
};

struct app_port {
	struct ether_addr mac_addr;
	struct txq_port txq;
	rte_spinlock_t lock;
	int port_active;
	int port_dirty;
	int idx_port;
	struct rte_mempool *pkt_pool;
};

struct app_config {
	struct app_port ports[MAX_PORTS];
	int cnt_ports;
	int exit_now;
};


struct app_config app_cfg;


void lock_port(int idx_port)
{
	struct app_port *ptr_port = &app_cfg.ports[idx_port];

	rte_spinlock_lock(&ptr_port->lock);
}

void unlock_port(int idx_port)
{
	struct app_port *ptr_port = &app_cfg.ports[idx_port];

	rte_spinlock_unlock(&ptr_port->lock);
}

void mark_port_active(int idx_port)
{
	struct app_port *ptr_port = &app_cfg.ports[idx_port];

	ptr_port->port_active = 1;
}

void mark_port_inactive(int idx_port)
{
	struct app_port *ptr_port = &app_cfg.ports[idx_port];

	ptr_port->port_active = 0;
}

void mark_port_newmac(int idx_port)
{
	struct app_port *ptr_port = &app_cfg.ports[idx_port];

	ptr_port->port_dirty = 1;
}

static void setup_ports(struct app_config *app_cfg, int cnt_ports)
{
	int idx_port;
	int size_pktpool;
	struct rte_eth_conf cfg_port;
	struct rte_eth_dev_info dev_info;
	char str_name[16];
	uint16_t nb_rxd = PORT_RX_QUEUE_SIZE;
	uint16_t nb_txd = PORT_TX_QUEUE_SIZE;
	struct rte_eth_txconf txconf;

	memset(&cfg_port, 0, sizeof(cfg_port));
	cfg_port.txmode.mq_mode = ETH_MQ_TX_NONE;

	for (idx_port = 0; idx_port < cnt_ports; idx_port++) {
		struct app_port *ptr_port = &app_cfg->ports[idx_port];

		rte_eth_dev_info_get(idx_port, &dev_info);
		size_pktpool = dev_info.rx_desc_lim.nb_max +
			dev_info.tx_desc_lim.nb_max + PKTPOOL_EXTRA_SIZE;

		snprintf(str_name, 16, "pkt_pool%i", idx_port);
		ptr_port->pkt_pool = rte_pktmbuf_pool_create(
			str_name,
			size_pktpool, PKTPOOL_CACHE,
			0,
			RTE_MBUF_DEFAULT_BUF_SIZE,
			rte_socket_id()
			);
		if (ptr_port->pkt_pool == NULL)
			rte_exit(EXIT_FAILURE,
				"rte_pktmbuf_pool_create failed"
				);

		printf("Init port %i..\n", idx_port);
		ptr_port->port_active = 1;
		ptr_port->port_dirty = 0;
		ptr_port->idx_port = idx_port;

		if (rte_eth_dev_configure(idx_port, 1, 1, &cfg_port) < 0)
			rte_exit(EXIT_FAILURE,
				 "rte_eth_dev_configure failed");
		if (rte_eth_dev_adjust_nb_rx_tx_desc(idx_port, &nb_rxd,
						     &nb_txd) < 0)
			rte_exit(EXIT_FAILURE,
				 "rte_eth_dev_adjust_nb_rx_tx_desc failed");

		if (rte_eth_rx_queue_setup(
			    idx_port, 0, nb_rxd,
			    rte_eth_dev_socket_id(idx_port), NULL,
			    ptr_port->pkt_pool) < 0)
			rte_exit(EXIT_FAILURE,
				 "rte_eth_rx_queue_setup failed"
				);
		txconf = dev_info.default_txconf;
		if (rte_eth_tx_queue_setup(
			    idx_port, 0, nb_txd,
			    rte_eth_dev_socket_id(idx_port), &txconf) < 0)
			rte_exit(EXIT_FAILURE,
				 "rte_eth_tx_queue_setup failed"
				);
		if (rte_eth_dev_start(idx_port) < 0)
			rte_exit(EXIT_FAILURE,
				 "%s:%i: rte_eth_dev_start failed",
				 __FILE__, __LINE__
				);
		rte_eth_macaddr_get(idx_port, &ptr_port->mac_addr);
		rte_spinlock_init(&ptr_port->lock);
	}
}

static void process_frame(struct app_port *ptr_port,
	struct rte_mbuf *ptr_frame)
{
	struct ether_hdr *ptr_mac_hdr;

	ptr_mac_hdr = rte_pktmbuf_mtod(ptr_frame, struct ether_hdr *);
	ether_addr_copy(&ptr_mac_hdr->s_addr, &ptr_mac_hdr->d_addr);
	ether_addr_copy(&ptr_port->mac_addr, &ptr_mac_hdr->s_addr);
}

static int slave_main(__attribute__((unused)) void *ptr_data)
{
	struct app_port *ptr_port;
	struct rte_mbuf *ptr_frame;
	struct txq_port *txq;

	uint16_t cnt_recv_frames;
	uint16_t idx_frame;
	uint16_t cnt_sent;
	uint16_t idx_port;
	uint16_t lock_result;

	while (app_cfg.exit_now == 0) {
		for (idx_port = 0; idx_port < app_cfg.cnt_ports; idx_port++) {
			/* Check that port is active and unlocked */
			ptr_port = &app_cfg.ports[idx_port];
			lock_result = rte_spinlock_trylock(&ptr_port->lock);
			if (lock_result == 0)
				continue;
			if (ptr_port->port_active == 0) {
				rte_spinlock_unlock(&ptr_port->lock);
				continue;
			}
			txq = &ptr_port->txq;

			/* MAC address was updated */
			if (ptr_port->port_dirty == 1) {
				rte_eth_macaddr_get(ptr_port->idx_port,
					&ptr_port->mac_addr);
				ptr_port->port_dirty = 0;
			}

			/* Incoming frames */
			cnt_recv_frames = rte_eth_rx_burst(
				ptr_port->idx_port, 0,
				&txq->buf_frames[txq->cnt_unsent],
				RTE_DIM(txq->buf_frames) - txq->cnt_unsent
				);
			if (cnt_recv_frames > 0) {
				for (idx_frame = 0;
					idx_frame < cnt_recv_frames;
					idx_frame++) {
					ptr_frame = txq->buf_frames[
						idx_frame + txq->cnt_unsent];
					process_frame(ptr_port, ptr_frame);
				}
				txq->cnt_unsent += cnt_recv_frames;
			}

			/* Outgoing frames */
			if (txq->cnt_unsent > 0) {
				cnt_sent = rte_eth_tx_burst(
					ptr_port->idx_port, 0,
					txq->buf_frames,
					txq->cnt_unsent
					);
				/* Shuffle up unsent frame pointers */
				for (idx_frame = cnt_sent;
					idx_frame < txq->cnt_unsent;
					idx_frame++)
					txq->buf_frames[idx_frame - cnt_sent] =
						txq->buf_frames[idx_frame];
				txq->cnt_unsent -= cnt_sent;
			}
			rte_spinlock_unlock(&ptr_port->lock);
		} /* end for( idx_port ) */
	} /* end for(;;) */

	return 0;
}

int main(int argc, char **argv)
{
	int cnt_args_parsed;
	uint32_t id_core;
	uint32_t cnt_ports;

	/* Init runtime environment */
	cnt_args_parsed = rte_eal_init(argc, argv);
	if (cnt_args_parsed < 0)
		rte_exit(EXIT_FAILURE, "rte_eal_init(): Failed");

	cnt_ports = rte_eth_dev_count_avail();
	printf("Number of NICs: %i\n", cnt_ports);
	if (cnt_ports == 0)
		rte_exit(EXIT_FAILURE, "No available NIC ports!\n");
	if (cnt_ports > MAX_PORTS) {
		printf("Info: Using only %i of %i ports\n",
			cnt_ports, MAX_PORTS
			);
		cnt_ports = MAX_PORTS;
	}

	setup_ports(&app_cfg, cnt_ports);

	app_cfg.exit_now = 0;
	app_cfg.cnt_ports = cnt_ports;

	if (rte_lcore_count() < 2)
		rte_exit(EXIT_FAILURE, "No available slave core!\n");
	/* Assume there is an available slave.. */
	id_core = rte_lcore_id();
	id_core = rte_get_next_lcore(id_core, 1, 1);
	rte_eal_remote_launch(slave_main, NULL, id_core);

	ethapp_main();

	app_cfg.exit_now = 1;
	RTE_LCORE_FOREACH_SLAVE(id_core) {
		if (rte_eal_wait_lcore(id_core) < 0)
			return -1;
	}

	return 0;
}