xref: /dpdk/examples/vm_power_manager/main.c (revision 25d11a86c56d50947af33d0b79ede622809bd8b9)
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2010-2014 Intel Corporation
3  */
4 
5 #include <stdio.h>
6 #include <string.h>
7 #include <stdint.h>
8 #include <sys/epoll.h>
9 #include <fcntl.h>
10 #include <unistd.h>
11 #include <stdlib.h>
12 #include <signal.h>
13 #include <errno.h>
14 
15 #include <sys/queue.h>
16 
17 #include <rte_common.h>
18 #include <rte_eal.h>
19 #include <rte_launch.h>
20 #include <rte_log.h>
21 #include <rte_per_lcore.h>
22 #include <rte_lcore.h>
23 #include <rte_ethdev.h>
24 #include <getopt.h>
25 #include <rte_cycles.h>
26 #include <rte_debug.h>
27 
28 #include "channel_manager.h"
29 #include "channel_monitor.h"
30 #include "power_manager.h"
31 #include "vm_power_cli.h"
32 #include "oob_monitor.h"
33 #include "parse.h"
34 #include <rte_pmd_ixgbe.h>
35 #include <rte_pmd_i40e.h>
36 #include <rte_pmd_bnxt.h>
37 
38 #define RX_RING_SIZE 1024
39 #define TX_RING_SIZE 1024
40 
41 #define NUM_MBUFS 8191
42 #define MBUF_CACHE_SIZE 250
43 #define BURST_SIZE 32
44 
45 static uint32_t enabled_port_mask;
46 static volatile bool force_quit;
47 
48 /****************/
49 static const struct rte_eth_conf port_conf_default = {
50 	.rxmode = {
51 		.max_rx_pkt_len = ETHER_MAX_LEN,
52 	},
53 };
54 
55 static inline int
56 port_init(uint16_t port, struct rte_mempool *mbuf_pool)
57 {
58 	struct rte_eth_conf port_conf = port_conf_default;
59 	const uint16_t rx_rings = 1, tx_rings = 1;
60 	int retval;
61 	uint16_t q;
62 	struct rte_eth_dev_info dev_info;
63 	struct rte_eth_txconf txq_conf;
64 
65 	if (!rte_eth_dev_is_valid_port(port))
66 		return -1;
67 
68 	rte_eth_dev_info_get(port, &dev_info);
69 	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
70 		port_conf.txmode.offloads |=
71 			DEV_TX_OFFLOAD_MBUF_FAST_FREE;
72 
73 	/* Configure the Ethernet device. */
74 	retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf);
75 	if (retval != 0)
76 		return retval;
77 
78 	/* Allocate and set up 1 RX queue per Ethernet port. */
79 	for (q = 0; q < rx_rings; q++) {
80 		retval = rte_eth_rx_queue_setup(port, q, RX_RING_SIZE,
81 				rte_eth_dev_socket_id(port), NULL, mbuf_pool);
82 		if (retval < 0)
83 			return retval;
84 	}
85 
86 	txq_conf = dev_info.default_txconf;
87 	txq_conf.offloads = port_conf.txmode.offloads;
88 	/* Allocate and set up 1 TX queue per Ethernet port. */
89 	for (q = 0; q < tx_rings; q++) {
90 		retval = rte_eth_tx_queue_setup(port, q, TX_RING_SIZE,
91 				rte_eth_dev_socket_id(port), &txq_conf);
92 		if (retval < 0)
93 			return retval;
94 	}
95 
96 	/* Start the Ethernet port. */
97 	retval = rte_eth_dev_start(port);
98 	if (retval < 0)
99 		return retval;
100 
101 	/* Display the port MAC address. */
102 	struct ether_addr addr;
103 	rte_eth_macaddr_get(port, &addr);
104 	printf("Port %u MAC: %02" PRIx8 " %02" PRIx8 " %02" PRIx8
105 			   " %02" PRIx8 " %02" PRIx8 " %02" PRIx8 "\n",
106 			(unsigned int)port,
107 			addr.addr_bytes[0], addr.addr_bytes[1],
108 			addr.addr_bytes[2], addr.addr_bytes[3],
109 			addr.addr_bytes[4], addr.addr_bytes[5]);
110 
111 	/* Enable RX in promiscuous mode for the Ethernet device. */
112 	rte_eth_promiscuous_enable(port);
113 
114 
115 	return 0;
116 }
117 
118 static int
119 parse_portmask(const char *portmask)
120 {
121 	char *end = NULL;
122 	unsigned long pm;
123 
124 	/* parse hexadecimal string */
125 	pm = strtoul(portmask, &end, 16);
126 	if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
127 		return -1;
128 
129 	if (pm == 0)
130 		return -1;
131 
132 	return pm;
133 }
134 /* Parse the argument given in the command line of the application */
135 static int
136 parse_args(int argc, char **argv)
137 {
138 	int opt, ret, cnt, i;
139 	char **argvopt;
140 	uint16_t *oob_enable;
141 	int option_index;
142 	char *prgname = argv[0];
143 	struct core_info *ci;
144 	float branch_ratio;
145 	static struct option lgopts[] = {
146 		{ "mac-updating", no_argument, 0, 1},
147 		{ "no-mac-updating", no_argument, 0, 0},
148 		{ "core-list", optional_argument, 0, 'l'},
149 		{ "port-list", optional_argument, 0, 'p'},
150 		{ "branch-ratio", optional_argument, 0, 'b'},
151 		{NULL, 0, 0, 0}
152 	};
153 	argvopt = argv;
154 	ci = get_core_info();
155 
156 	while ((opt = getopt_long(argc, argvopt, "l:p:q:T:b:",
157 				  lgopts, &option_index)) != EOF) {
158 
159 		switch (opt) {
160 		/* portmask */
161 		case 'p':
162 			enabled_port_mask = parse_portmask(optarg);
163 			if (enabled_port_mask == 0) {
164 				printf("invalid portmask\n");
165 				return -1;
166 			}
167 			break;
168 		case 'l':
169 			oob_enable = malloc(ci->core_count * sizeof(uint16_t));
170 			if (oob_enable == NULL) {
171 				printf("Error - Unable to allocate memory\n");
172 				return -1;
173 			}
174 			cnt = parse_set(optarg, oob_enable, ci->core_count);
175 			if (cnt < 0) {
176 				printf("Invalid core-list - [%s]\n",
177 						optarg);
178 				break;
179 			}
180 			for (i = 0; i < ci->core_count; i++) {
181 				if (oob_enable[i]) {
182 					printf("***Using core %d\n", i);
183 					ci->cd[i].oob_enabled = 1;
184 					ci->cd[i].global_enabled_cpus = 1;
185 				}
186 			}
187 			free(oob_enable);
188 			break;
189 		case 'b':
190 			branch_ratio = 0.0;
191 			if (strlen(optarg))
192 				branch_ratio = atof(optarg);
193 			if (branch_ratio <= 0.0) {
194 				printf("invalid branch ratio specified\n");
195 				return -1;
196 			}
197 			ci->branch_ratio_threshold = branch_ratio;
198 			printf("***Setting branch ratio to %f\n",
199 					branch_ratio);
200 			break;
201 		/* long options */
202 		case 0:
203 			break;
204 
205 		default:
206 			return -1;
207 		}
208 	}
209 
210 	if (optind >= 0)
211 		argv[optind-1] = prgname;
212 
213 	ret = optind-1;
214 	optind = 0; /* reset getopt lib */
215 	return ret;
216 }
217 
218 static void
219 check_all_ports_link_status(uint32_t port_mask)
220 {
221 #define CHECK_INTERVAL 100 /* 100ms */
222 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
223 	uint16_t portid, count, all_ports_up, print_flag = 0;
224 	struct rte_eth_link link;
225 
226 	printf("\nChecking link status");
227 	fflush(stdout);
228 	for (count = 0; count <= MAX_CHECK_TIME; count++) {
229 		if (force_quit)
230 			return;
231 		all_ports_up = 1;
232 		RTE_ETH_FOREACH_DEV(portid) {
233 			if (force_quit)
234 				return;
235 			if ((port_mask & (1 << portid)) == 0)
236 				continue;
237 			memset(&link, 0, sizeof(link));
238 			rte_eth_link_get_nowait(portid, &link);
239 			/* print link status if flag set */
240 			if (print_flag == 1) {
241 				if (link.link_status)
242 					printf("Port %d Link Up - speed %u "
243 						"Mbps - %s\n", (uint16_t)portid,
244 						(unsigned int)link.link_speed,
245 				(link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
246 					("full-duplex") : ("half-duplex\n"));
247 				else
248 					printf("Port %d Link Down\n",
249 						(uint16_t)portid);
250 				continue;
251 			}
252 		       /* clear all_ports_up flag if any link down */
253 			if (link.link_status == ETH_LINK_DOWN) {
254 				all_ports_up = 0;
255 				break;
256 			}
257 		}
258 		/* after finally printing all link status, get out */
259 		if (print_flag == 1)
260 			break;
261 
262 		if (all_ports_up == 0) {
263 			printf(".");
264 			fflush(stdout);
265 			rte_delay_ms(CHECK_INTERVAL);
266 		}
267 
268 		/* set the print_flag if all ports up or timeout */
269 		if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
270 			print_flag = 1;
271 			printf("done\n");
272 		}
273 	}
274 }
275 static int
276 run_monitor(__attribute__((unused)) void *arg)
277 {
278 	if (channel_monitor_init() < 0) {
279 		printf("Unable to initialize channel monitor\n");
280 		return -1;
281 	}
282 	run_channel_monitor();
283 	return 0;
284 }
285 
286 static int
287 run_core_monitor(__attribute__((unused)) void *arg)
288 {
289 	if (branch_monitor_init() < 0) {
290 		printf("Unable to initialize core monitor\n");
291 		return -1;
292 	}
293 	run_branch_monitor();
294 	return 0;
295 }
296 
297 static void
298 sig_handler(int signo)
299 {
300 	printf("Received signal %d, exiting...\n", signo);
301 	channel_monitor_exit();
302 	channel_manager_exit();
303 	power_manager_exit();
304 
305 }
306 
307 int
308 main(int argc, char **argv)
309 {
310 	int ret;
311 	unsigned lcore_id;
312 	unsigned int nb_ports;
313 	struct rte_mempool *mbuf_pool;
314 	uint16_t portid;
315 	struct core_info *ci;
316 
317 
318 	ret = core_info_init();
319 	if (ret < 0)
320 		rte_panic("Cannot allocate core info\n");
321 
322 	ci = get_core_info();
323 
324 	ret = rte_eal_init(argc, argv);
325 	if (ret < 0)
326 		rte_panic("Cannot init EAL\n");
327 
328 	signal(SIGINT, sig_handler);
329 	signal(SIGTERM, sig_handler);
330 
331 	argc -= ret;
332 	argv += ret;
333 
334 	/* parse application arguments (after the EAL ones) */
335 	ret = parse_args(argc, argv);
336 	if (ret < 0)
337 		rte_exit(EXIT_FAILURE, "Invalid arguments\n");
338 
339 	nb_ports = rte_eth_dev_count_avail();
340 
341 	if (nb_ports > 0) {
342 		mbuf_pool = rte_pktmbuf_pool_create("MBUF_POOL",
343 				NUM_MBUFS * nb_ports, MBUF_CACHE_SIZE, 0,
344 				RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
345 
346 		if (mbuf_pool == NULL)
347 			rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n");
348 
349 		/* Initialize ports. */
350 		RTE_ETH_FOREACH_DEV(portid) {
351 			struct ether_addr eth;
352 			int w, j;
353 			int ret;
354 
355 			if ((enabled_port_mask & (1 << portid)) == 0)
356 				continue;
357 
358 			eth.addr_bytes[0] = 0xe0;
359 			eth.addr_bytes[1] = 0xe0;
360 			eth.addr_bytes[2] = 0xe0;
361 			eth.addr_bytes[3] = 0xe0;
362 			eth.addr_bytes[4] = portid + 0xf0;
363 
364 			if (port_init(portid, mbuf_pool) != 0)
365 				rte_exit(EXIT_FAILURE,
366 					"Cannot init port %"PRIu8 "\n",
367 					portid);
368 
369 			for (w = 0; w < MAX_VFS; w++) {
370 				eth.addr_bytes[5] = w + 0xf0;
371 
372 				ret = rte_pmd_ixgbe_set_vf_mac_addr(portid,
373 							w, &eth);
374 				if (ret == -ENOTSUP)
375 					ret = rte_pmd_i40e_set_vf_mac_addr(
376 							portid, w, &eth);
377 				if (ret == -ENOTSUP)
378 					ret = rte_pmd_bnxt_set_vf_mac_addr(
379 							portid, w, &eth);
380 
381 				switch (ret) {
382 				case 0:
383 					printf("Port %d VF %d MAC: ",
384 							portid, w);
385 					for (j = 0; j < 5; j++) {
386 						printf("%02x:",
387 							eth.addr_bytes[j]);
388 					}
389 					printf("%02x\n", eth.addr_bytes[5]);
390 					break;
391 				}
392 				printf("\n");
393 				break;
394 			}
395 		}
396 	}
397 
398 	check_all_ports_link_status(enabled_port_mask);
399 
400 	lcore_id = rte_get_next_lcore(-1, 1, 0);
401 	if (lcore_id == RTE_MAX_LCORE) {
402 		RTE_LOG(ERR, EAL, "A minimum of three cores are required to run "
403 				"application\n");
404 		return 0;
405 	}
406 	printf("Running channel monitor on lcore id %d\n", lcore_id);
407 	rte_eal_remote_launch(run_monitor, NULL, lcore_id);
408 
409 	lcore_id = rte_get_next_lcore(lcore_id, 1, 0);
410 	if (lcore_id == RTE_MAX_LCORE) {
411 		RTE_LOG(ERR, EAL, "A minimum of three cores are required to run "
412 				"application\n");
413 		return 0;
414 	}
415 	if (power_manager_init() < 0) {
416 		printf("Unable to initialize power manager\n");
417 		return -1;
418 	}
419 	if (channel_manager_init(CHANNEL_MGR_DEFAULT_HV_PATH) < 0) {
420 		printf("Unable to initialize channel manager\n");
421 		return -1;
422 	}
423 
424 	add_host_channel();
425 
426 	printf("Running core monitor on lcore id %d\n", lcore_id);
427 	rte_eal_remote_launch(run_core_monitor, NULL, lcore_id);
428 
429 	run_cli(NULL);
430 
431 	branch_monitor_exit();
432 
433 	rte_eal_mp_wait_lcore();
434 
435 	free(ci->cd);
436 
437 	return 0;
438 }
439