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/*-
* BSD LICENSE
*
* Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <string.h>
#include <rte_errno.h>
#include <rte_ring.h>
#include <rte_mempool.h>
static int
common_ring_mp_enqueue(struct rte_mempool *mp, void * const *obj_table,
unsigned n)
{
return rte_ring_mp_enqueue_bulk(mp->pool_data, obj_table, n);
}
static int
common_ring_sp_enqueue(struct rte_mempool *mp, void * const *obj_table,
unsigned n)
{
return rte_ring_sp_enqueue_bulk(mp->pool_data, obj_table, n);
}
static int
common_ring_mc_dequeue(struct rte_mempool *mp, void **obj_table, unsigned n)
{
return rte_ring_mc_dequeue_bulk(mp->pool_data, obj_table, n);
}
static int
common_ring_sc_dequeue(struct rte_mempool *mp, void **obj_table, unsigned n)
{
return rte_ring_sc_dequeue_bulk(mp->pool_data, obj_table, n);
}
static unsigned
common_ring_get_count(const struct rte_mempool *mp)
{
return rte_ring_count(mp->pool_data);
}
static int
common_ring_alloc(struct rte_mempool *mp)
{
int rg_flags = 0, ret;
char rg_name[RTE_RING_NAMESIZE];
struct rte_ring *r;
ret = snprintf(rg_name, sizeof(rg_name),
RTE_MEMPOOL_MZ_FORMAT, mp->name);
if (ret < 0 || ret >= (int)sizeof(rg_name)) {
rte_errno = ENAMETOOLONG;
return -rte_errno;
}
/* ring flags */
if (mp->flags & MEMPOOL_F_SP_PUT)
rg_flags |= RING_F_SP_ENQ;
if (mp->flags & MEMPOOL_F_SC_GET)
rg_flags |= RING_F_SC_DEQ;
/*
* Allocate the ring that will be used to store objects.
* Ring functions will return appropriate errors if we are
* running as a secondary process etc., so no checks made
* in this function for that condition.
*/
r = rte_ring_create(rg_name, rte_align32pow2(mp->size + 1),
mp->socket_id, rg_flags);
if (r == NULL)
return -rte_errno;
mp->pool_data = r;
return 0;
}
static void
common_ring_free(struct rte_mempool *mp)
{
rte_ring_free(mp->pool_data);
}
/*
* The following 4 declarations of mempool ops structs address
* the need for the backward compatible mempool handlers for
* single/multi producers and single/multi consumers as dictated by the
* flags provided to the rte_mempool_create function
*/
static const struct rte_mempool_ops ops_mp_mc = {
.name = "ring_mp_mc",
.alloc = common_ring_alloc,
.free = common_ring_free,
.enqueue = common_ring_mp_enqueue,
.dequeue = common_ring_mc_dequeue,
.get_count = common_ring_get_count,
};
static const struct rte_mempool_ops ops_sp_sc = {
.name = "ring_sp_sc",
.alloc = common_ring_alloc,
.free = common_ring_free,
.enqueue = common_ring_sp_enqueue,
.dequeue = common_ring_sc_dequeue,
.get_count = common_ring_get_count,
};
static const struct rte_mempool_ops ops_mp_sc = {
.name = "ring_mp_sc",
.alloc = common_ring_alloc,
.free = common_ring_free,
.enqueue = common_ring_mp_enqueue,
.dequeue = common_ring_sc_dequeue,
.get_count = common_ring_get_count,
};
static const struct rte_mempool_ops ops_sp_mc = {
.name = "ring_sp_mc",
.alloc = common_ring_alloc,
.free = common_ring_free,
.enqueue = common_ring_sp_enqueue,
.dequeue = common_ring_mc_dequeue,
.get_count = common_ring_get_count,
};
MEMPOOL_REGISTER_OPS(ops_mp_mc);
MEMPOOL_REGISTER_OPS(ops_sp_sc);
MEMPOOL_REGISTER_OPS(ops_mp_sc);
MEMPOOL_REGISTER_OPS(ops_sp_mc);
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