xref: /spdk/examples/interrupt_tgt/interrupt_tgt.c (revision b30d57cdad6d2bc75cc1e4e2ebbcebcb0d98dcfa)
1 /*-
2  *   BSD LICENSE
3  *
4  *   Copyright (c) Intel Corporation.
5  *   All rights reserved.
6  *
7  *   Redistribution and use in source and binary forms, with or without
8  *   modification, are permitted provided that the following conditions
9  *   are met:
10  *
11  *     * Redistributions of source code must retain the above copyright
12  *       notice, this list of conditions and the following disclaimer.
13  *     * Redistributions in binary form must reproduce the above copyright
14  *       notice, this list of conditions and the following disclaimer in
15  *       the documentation and/or other materials provided with the
16  *       distribution.
17  *     * Neither the name of Intel Corporation nor the names of its
18  *       contributors may be used to endorse or promote products derived
19  *       from this software without specific prior written permission.
20  *
21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 #include "spdk/stdinc.h"
35 #include "spdk/conf.h"
36 #include "spdk/event.h"
37 #include "spdk/vhost.h"
38 
39 static void
40 interrupt_tgt_usage(void)
41 {
42 	printf(" -E                        Set interrupt mode\n");
43 	printf(" -S <path>                 directory where to create vhost sockets (default: pwd)\n");
44 }
45 
46 static int
47 interrupt_tgt_parse_arg(int ch, char *arg)
48 {
49 	switch (ch) {
50 	case 'S':
51 		spdk_vhost_set_socket_path(arg);
52 		break;
53 	case 'E':
54 		spdk_interrupt_mode_enable();
55 		break;
56 	default:
57 		return -EINVAL;
58 	}
59 	return 0;
60 }
61 
62 static void
63 interrupt_tgt_started(void *arg1)
64 {
65 }
66 
67 int
68 main(int argc, char *argv[])
69 {
70 	struct spdk_app_opts opts = {};
71 	int rc;
72 
73 	spdk_app_opts_init(&opts, sizeof(opts));
74 	opts.name = "interrupt_tgt";
75 
76 	if ((rc = spdk_app_parse_args(argc, argv, &opts, "S:E", NULL,
77 				      interrupt_tgt_parse_arg, interrupt_tgt_usage)) !=
78 	    SPDK_APP_PARSE_ARGS_SUCCESS) {
79 		exit(rc);
80 	}
81 
82 	/* Blocks until the application is exiting */
83 	rc = spdk_app_start(&opts, interrupt_tgt_started, NULL);
84 
85 	spdk_app_fini();
86 
87 	return rc;
88 }
89