DPDK: Data Plane Development Kit

18.08.0-rc0
examples/vm_power_manager/main.c
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation
*/
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <sys/epoll.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <signal.h>
#include <errno.h>
#include <sys/queue.h>
#include <rte_common.h>
#include <rte_eal.h>
#include <rte_launch.h>
#include <rte_log.h>
#include <rte_per_lcore.h>
#include <rte_lcore.h>
#include <rte_ethdev.h>
#include <getopt.h>
#include <rte_cycles.h>
#include <rte_debug.h>
#include "channel_manager.h"
#include "channel_monitor.h"
#include "power_manager.h"
#include "vm_power_cli.h"
#include <rte_pmd_ixgbe.h>
#include <rte_pmd_i40e.h>
#include <rte_pmd_bnxt.h>
#define RX_RING_SIZE 1024
#define TX_RING_SIZE 1024
#define NUM_MBUFS 8191
#define MBUF_CACHE_SIZE 250
#define BURST_SIZE 32
static uint32_t enabled_port_mask;
static volatile bool force_quit;
/****************/
static const struct rte_eth_conf port_conf_default = {
.rxmode = {
.ignore_offload_bitfield = 1,
},
};
static inline int
port_init(uint16_t port, struct rte_mempool *mbuf_pool)
{
struct rte_eth_conf port_conf = port_conf_default;
const uint16_t rx_rings = 1, tx_rings = 1;
int retval;
uint16_t q;
struct rte_eth_dev_info dev_info;
struct rte_eth_txconf txq_conf;
return -1;
rte_eth_dev_info_get(port, &dev_info);
if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
port_conf.txmode.offloads |=
/* Configure the Ethernet device. */
retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf);
if (retval != 0)
return retval;
/* Allocate and set up 1 RX queue per Ethernet port. */
for (q = 0; q < rx_rings; q++) {
retval = rte_eth_rx_queue_setup(port, q, RX_RING_SIZE,
rte_eth_dev_socket_id(port), NULL, mbuf_pool);
if (retval < 0)
return retval;
}
txq_conf = dev_info.default_txconf;
txq_conf.txq_flags = ETH_TXQ_FLAGS_IGNORE;
txq_conf.offloads = port_conf.txmode.offloads;
/* Allocate and set up 1 TX queue per Ethernet port. */
for (q = 0; q < tx_rings; q++) {
retval = rte_eth_tx_queue_setup(port, q, TX_RING_SIZE,
rte_eth_dev_socket_id(port), &txq_conf);
if (retval < 0)
return retval;
}
/* Start the Ethernet port. */
retval = rte_eth_dev_start(port);
if (retval < 0)
return retval;
/* Display the port MAC address. */
struct ether_addr addr;
rte_eth_macaddr_get(port, &addr);
printf("Port %u MAC: %02" PRIx8 " %02" PRIx8 " %02" PRIx8
" %02" PRIx8 " %02" PRIx8 " %02" PRIx8 "\n",
(unsigned int)port,
addr.addr_bytes[0], addr.addr_bytes[1],
addr.addr_bytes[2], addr.addr_bytes[3],
addr.addr_bytes[4], addr.addr_bytes[5]);
/* Enable RX in promiscuous mode for the Ethernet device. */
return 0;
}
static int
parse_portmask(const char *portmask)
{
char *end = NULL;
unsigned long pm;
/* parse hexadecimal string */
pm = strtoul(portmask, &end, 16);
if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
return -1;
if (pm == 0)
return -1;
return pm;
}
/* Parse the argument given in the command line of the application */
static int
parse_args(int argc, char **argv)
{
int opt, ret;
char **argvopt;
int option_index;
char *prgname = argv[0];
static struct option lgopts[] = {
{ "mac-updating", no_argument, 0, 1},
{ "no-mac-updating", no_argument, 0, 0},
{NULL, 0, 0, 0}
};
argvopt = argv;
while ((opt = getopt_long(argc, argvopt, "p:q:T:",
lgopts, &option_index)) != EOF) {
switch (opt) {
/* portmask */
case 'p':
enabled_port_mask = parse_portmask(optarg);
if (enabled_port_mask == 0) {
printf("invalid portmask\n");
return -1;
}
break;
/* long options */
case 0:
break;
default:
return -1;
}
}
if (optind >= 0)
argv[optind-1] = prgname;
ret = optind-1;
optind = 0; /* reset getopt lib */
return ret;
}
static void
check_all_ports_link_status(uint32_t port_mask)
{
#define CHECK_INTERVAL 100 /* 100ms */
#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
uint16_t portid, count, all_ports_up, print_flag = 0;
struct rte_eth_link link;
printf("\nChecking link status");
fflush(stdout);
for (count = 0; count <= MAX_CHECK_TIME; count++) {
if (force_quit)
return;
all_ports_up = 1;
if (force_quit)
return;
if ((port_mask & (1 << portid)) == 0)
continue;
memset(&link, 0, sizeof(link));
rte_eth_link_get_nowait(portid, &link);
/* print link status if flag set */
if (print_flag == 1) {
if (link.link_status)
printf("Port %d Link Up - speed %u "
"Mbps - %s\n", (uint16_t)portid,
(unsigned int)link.link_speed,
(link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
("full-duplex") : ("half-duplex\n"));
else
printf("Port %d Link Down\n",
(uint16_t)portid);
continue;
}
/* clear all_ports_up flag if any link down */
if (link.link_status == ETH_LINK_DOWN) {
all_ports_up = 0;
break;
}
}
/* after finally printing all link status, get out */
if (print_flag == 1)
break;
if (all_ports_up == 0) {
printf(".");
fflush(stdout);
rte_delay_ms(CHECK_INTERVAL);
}
/* set the print_flag if all ports up or timeout */
if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
print_flag = 1;
printf("done\n");
}
}
}
static int
run_monitor(__attribute__((unused)) void *arg)
{
if (channel_monitor_init() < 0) {
printf("Unable to initialize channel monitor\n");
return -1;
}
run_channel_monitor();
return 0;
}
static void
sig_handler(int signo)
{
printf("Received signal %d, exiting...\n", signo);
channel_monitor_exit();
channel_manager_exit();
power_manager_exit();
}
int
main(int argc, char **argv)
{
int ret;
unsigned lcore_id;
unsigned int nb_ports;
struct rte_mempool *mbuf_pool;
uint16_t portid;
ret = rte_eal_init(argc, argv);
if (ret < 0)
rte_panic("Cannot init EAL\n");
signal(SIGINT, sig_handler);
signal(SIGTERM, sig_handler);
argc -= ret;
argv += ret;
/* parse application arguments (after the EAL ones) */
ret = parse_args(argc, argv);
if (ret < 0)
rte_exit(EXIT_FAILURE, "Invalid arguments\n");
mbuf_pool = rte_pktmbuf_pool_create("MBUF_POOL", NUM_MBUFS * nb_ports,
MBUF_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
if (mbuf_pool == NULL)
rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n");
/* Initialize ports. */
struct ether_addr eth;
int w, j;
int ret;
if ((enabled_port_mask & (1 << portid)) == 0)
continue;
eth.addr_bytes[0] = 0xe0;
eth.addr_bytes[1] = 0xe0;
eth.addr_bytes[2] = 0xe0;
eth.addr_bytes[3] = 0xe0;
eth.addr_bytes[4] = portid + 0xf0;
if (port_init(portid, mbuf_pool) != 0)
rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu8 "\n",
portid);
for (w = 0; w < MAX_VFS; w++) {
eth.addr_bytes[5] = w + 0xf0;
w, &eth);
if (ret == -ENOTSUP)
w, &eth);
if (ret == -ENOTSUP)
ret = rte_pmd_bnxt_set_vf_mac_addr(portid,
w, &eth);
switch (ret) {
case 0:
printf("Port %d VF %d MAC: ",
portid, w);
for (j = 0; j < 6; j++) {
printf("%02x", eth.addr_bytes[j]);
if (j < 5)
printf(":");
}
printf("\n");
break;
}
}
}
lcore_id = rte_get_next_lcore(-1, 1, 0);
if (lcore_id == RTE_MAX_LCORE) {
RTE_LOG(ERR, EAL, "A minimum of two cores are required to run "
"application\n");
return 0;
}
check_all_ports_link_status(enabled_port_mask);
rte_eal_remote_launch(run_monitor, NULL, lcore_id);
if (power_manager_init() < 0) {
printf("Unable to initialize power manager\n");
return -1;
}
if (channel_manager_init(CHANNEL_MGR_DEFAULT_HV_PATH) < 0) {
printf("Unable to initialize channel manager\n");
return -1;
}
run_cli(NULL);
return 0;
}