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/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#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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