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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <rte_common.h>
#include <rte_lcore.h>
#include "args.h"
unsigned int portmask = 0;
static void
usage(const char *prgname)
{
fprintf(stderr, "Usage: %s [EAL args] -- -p <portmask>\n"
"-p PORTMASK: hexadecimal bitmask of NIC ports to configure\n",
prgname);
}
static unsigned long
parse_portmask(const char *portmask_str)
{
return strtoul(portmask_str, NULL, 16);
}
static void
check_core_count(void)
{
if (rte_lcore_count() < 3)
rte_exit(EXIT_FAILURE,
"At least 3 cores need to be passed in the coremask\n");
}
static void
check_portmask_value(unsigned int portmask)
{
unsigned int port_nb = 0;
port_nb = __builtin_popcount(portmask);
if (port_nb == 0)
rte_exit(EXIT_FAILURE,
"At least 2 ports need to be passed in the portmask\n");
if (port_nb % 2 != 0)
rte_exit(EXIT_FAILURE,
"An even number of ports is required in the portmask\n");
}
int
parse_qw_args(int argc, char **argv)
{
int opt;
while ((opt = getopt(argc, argv, "h:p:")) != -1) {
switch (opt) {
case 'h':
usage(argv[0]);
break;
case 'p':
portmask = parse_portmask(optarg);
break;
default:
usage(argv[0]);
}
}
check_core_count();
check_portmask_value(portmask);
return 0;
}
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