From fca143f059a0bddd7d47b8dc2df646a891b0eb0f Mon Sep 17 00:00:00 2001 From: Christian Ehrhardt Date: Tue, 16 May 2017 14:51:32 +0200 Subject: Imported Upstream version 17.05 --- lib/librte_mempool/rte_mempool_stack.c | 147 --------------------------------- 1 file changed, 147 deletions(-) delete mode 100644 lib/librte_mempool/rte_mempool_stack.c (limited to 'lib/librte_mempool/rte_mempool_stack.c') diff --git a/lib/librte_mempool/rte_mempool_stack.c b/lib/librte_mempool/rte_mempool_stack.c deleted file mode 100644 index 817f77e6..00000000 --- a/lib/librte_mempool/rte_mempool_stack.c +++ /dev/null @@ -1,147 +0,0 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 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 -#include -#include - -struct rte_mempool_stack { - rte_spinlock_t sl; - - uint32_t size; - uint32_t len; - void *objs[]; -}; - -static int -stack_alloc(struct rte_mempool *mp) -{ - struct rte_mempool_stack *s; - unsigned n = mp->size; - int size = sizeof(*s) + (n+16)*sizeof(void *); - - /* Allocate our local memory structure */ - s = rte_zmalloc_socket("mempool-stack", - size, - RTE_CACHE_LINE_SIZE, - mp->socket_id); - if (s == NULL) { - RTE_LOG(ERR, MEMPOOL, "Cannot allocate stack!\n"); - return -ENOMEM; - } - - rte_spinlock_init(&s->sl); - - s->size = n; - mp->pool_data = s; - - return 0; -} - -static int -stack_enqueue(struct rte_mempool *mp, void * const *obj_table, - unsigned n) -{ - struct rte_mempool_stack *s = mp->pool_data; - void **cache_objs; - unsigned index; - - rte_spinlock_lock(&s->sl); - cache_objs = &s->objs[s->len]; - - /* Is there sufficient space in the stack ? */ - if ((s->len + n) > s->size) { - rte_spinlock_unlock(&s->sl); - return -ENOBUFS; - } - - /* Add elements back into the cache */ - for (index = 0; index < n; ++index, obj_table++) - cache_objs[index] = *obj_table; - - s->len += n; - - rte_spinlock_unlock(&s->sl); - return 0; -} - -static int -stack_dequeue(struct rte_mempool *mp, void **obj_table, - unsigned n) -{ - struct rte_mempool_stack *s = mp->pool_data; - void **cache_objs; - unsigned index, len; - - rte_spinlock_lock(&s->sl); - - if (unlikely(n > s->len)) { - rte_spinlock_unlock(&s->sl); - return -ENOENT; - } - - cache_objs = s->objs; - - for (index = 0, len = s->len - 1; index < n; - ++index, len--, obj_table++) - *obj_table = cache_objs[len]; - - s->len -= n; - rte_spinlock_unlock(&s->sl); - return 0; -} - -static unsigned -stack_get_count(const struct rte_mempool *mp) -{ - struct rte_mempool_stack *s = mp->pool_data; - - return s->len; -} - -static void -stack_free(struct rte_mempool *mp) -{ - rte_free((void *)(mp->pool_data)); -} - -static struct rte_mempool_ops ops_stack = { - .name = "stack", - .alloc = stack_alloc, - .free = stack_free, - .enqueue = stack_enqueue, - .dequeue = stack_dequeue, - .get_count = stack_get_count -}; - -MEMPOOL_REGISTER_OPS(ops_stack); -- cgit 1.2.3-korg