ceph/src/seastar/dpdk/drivers/net/thunderx/nicvf_svf.c

   1 /*
   2  *   BSD LICENSE
   3  *
   4  *   Copyright (C) Cavium networks Ltd. 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 networks 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 }