xref: /f-stack/dpdk/drivers/net/thunderx/nicvf_svf.c (revision 031be553)
1 /*
2  *   BSD LICENSE
3  *
4  *   Copyright (C) Cavium, Inc. 2016.
5  *
6  *   Redistribution and use in source and binary forms, with or without
7  *   modification, are permitted provided that the following conditions
8  *   are met:
9  *
10  *     * Redistributions of source code must retain the above copyright
11  *       notice, this list of conditions and the following disclaimer.
12  *     * Redistributions in binary form must reproduce the above copyright
13  *       notice, this list of conditions and the following disclaimer in
14  *       the documentation and/or other materials provided with the
15  *       distribution.
16  *     * Neither the name of Cavium, Inc nor the names of its
17  *       contributors may be used to endorse or promote products derived
18  *       from this software without specific prior written permission.
19  *
20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 #include <assert.h>
34 #include <stddef.h>
35 
36 #include <rte_debug.h>
37 #include <rte_malloc.h>
38 
39 #include "base/nicvf_bsvf.h"
40 
41 #include "nicvf_svf.h"
42 
43 void
44 nicvf_svf_push(struct nicvf *vf)
45 {
46 	struct svf_entry *entry = NULL;
47 
48 	assert(vf != NULL);
49 
50 	entry = rte_zmalloc("nicvf", sizeof(*entry), RTE_CACHE_LINE_SIZE);
51 	if (entry == NULL)
52 		rte_panic("Cannoc allocate memory for svf_entry\n");
53 
54 	entry->vf = vf;
55 
56 	nicvf_bsvf_push(entry);
57 }
58 
59 struct nicvf *
60 nicvf_svf_pop(void)
61 {
62 	struct nicvf *vf;
63 	struct svf_entry *entry;
64 
65 	entry = nicvf_bsvf_pop();
66 
67 	vf = entry->vf;
68 
69 	rte_free(entry);
70 
71 	return vf;
72 }
73 
74 int
75 nicvf_svf_empty(void)
76 {
77 	return nicvf_bsvf_empty();
78 }
79