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