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