]>
Commit | Line | Data |
---|---|---|
11fdf7f2 TL |
1 | /* SPDX-License-Identifier: BSD-3-Clause |
2 | * Copyright(c) 2010-2014 Intel Corporation | |
3 | */ | |
4 | ||
5 | #include <stdio.h> | |
6 | #include <stdlib.h> | |
7 | #include <unistd.h> | |
8 | ||
9 | #include <rte_common.h> | |
10 | #include <rte_lcore.h> | |
11 | ||
12 | #include "args.h" | |
13 | ||
14 | ||
15 | unsigned int portmask = 0; | |
16 | ||
17 | ||
18 | static void | |
19 | usage(const char *prgname) | |
20 | { | |
21 | fprintf(stderr, "Usage: %s [EAL args] -- -p <portmask>\n" | |
22 | "-p PORTMASK: hexadecimal bitmask of NIC ports to configure\n", | |
23 | prgname); | |
24 | } | |
25 | ||
26 | static unsigned long | |
27 | parse_portmask(const char *portmask_str) | |
28 | { | |
29 | return strtoul(portmask_str, NULL, 16); | |
30 | } | |
31 | ||
32 | static void | |
33 | check_core_count(void) | |
34 | { | |
35 | if (rte_lcore_count() < 3) | |
36 | rte_exit(EXIT_FAILURE, | |
37 | "At least 3 cores need to be passed in the coremask\n"); | |
38 | } | |
39 | ||
40 | static void | |
41 | check_portmask_value(unsigned int portmask) | |
42 | { | |
43 | unsigned int port_nb = 0; | |
44 | ||
45 | port_nb = __builtin_popcount(portmask); | |
46 | ||
47 | if (port_nb == 0) | |
48 | rte_exit(EXIT_FAILURE, | |
49 | "At least 2 ports need to be passed in the portmask\n"); | |
50 | ||
51 | if (port_nb % 2 != 0) | |
52 | rte_exit(EXIT_FAILURE, | |
53 | "An even number of ports is required in the portmask\n"); | |
54 | } | |
55 | ||
56 | int | |
57 | parse_qw_args(int argc, char **argv) | |
58 | { | |
59 | int opt; | |
60 | ||
61 | while ((opt = getopt(argc, argv, "h:p:")) != -1) { | |
62 | switch (opt) { | |
63 | case 'h': | |
64 | usage(argv[0]); | |
65 | break; | |
66 | case 'p': | |
67 | portmask = parse_portmask(optarg); | |
68 | break; | |
69 | default: | |
70 | usage(argv[0]); | |
71 | } | |
72 | } | |
73 | ||
74 | check_core_count(); | |
75 | check_portmask_value(portmask); | |
76 | ||
77 | return 0; | |
78 | } |