b949f1318e
OCF requires memory retrived from mempool to be filled with zeros. When mempool is created, information about element size is stored to be used when new memory is retrived. This is fix for issue #671 Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com> Change-Id: Ieb533e3bdae0665dae18e7b3a379da0ed843c35a Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/449155 Reviewed-by: Vitaliy Mysak <vitaliy.mysak@intel.com> Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
141 lines
3.8 KiB
C
141 lines
3.8 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "ocf/ocf_def.h"
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#include "ocf_env.h"
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#include "spdk/crc32.h"
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#include "spdk/env.h"
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#include "spdk_internal/log.h"
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/* Number of buffers for mempool
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* Need to be power of two - 1 for better memory utilization
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* It depends on memory usage of OCF which
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* in itself depends on the workload
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* It is a big number because OCF uses allocators
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* for every request it sends and recieves
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*/
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#define ENV_ALLOCATOR_NBUFS 32767
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/* Use unique index for env allocators */
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static env_atomic g_env_allocator_index = 0;
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void *
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env_allocator_new(env_allocator *allocator)
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{
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void *mem = spdk_mempool_get(allocator->mempool);
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if (spdk_likely(mem)) {
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memset(mem, 0, allocator->element_size);
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}
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return mem;
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}
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env_allocator *
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env_allocator_create(uint32_t size, const char *name)
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{
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env_allocator *allocator;
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char qualified_name[128] = {0};
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snprintf(qualified_name, 128, "ocf_env_%d", env_atomic_inc_return(&g_env_allocator_index));
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allocator = calloc(1, sizeof(*allocator));
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if (!allocator) {
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return NULL;
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}
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allocator->mempool = spdk_mempool_create(qualified_name,
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ENV_ALLOCATOR_NBUFS, size,
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SPDK_MEMPOOL_DEFAULT_CACHE_SIZE,
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SPDK_ENV_SOCKET_ID_ANY);
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if (!allocator->mempool) {
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free(allocator);
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return NULL;
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}
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allocator->element_size = size;
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return allocator;
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}
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void
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env_allocator_del(env_allocator *allocator, void *item)
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{
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spdk_mempool_put(allocator->mempool, item);
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}
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void
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env_allocator_destroy(env_allocator *allocator)
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{
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if (allocator) {
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if (ENV_ALLOCATOR_NBUFS - spdk_mempool_count(allocator->mempool)) {
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SPDK_ERRLOG("Not all objects deallocated\n");
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assert(false);
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}
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spdk_mempool_free(allocator->mempool);
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free(allocator);
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}
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}
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/* *** COMPLETION *** */
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void
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env_completion_init(env_completion *completion)
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{
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atomic_set(&completion->atom, 1);
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}
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void
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env_completion_wait(env_completion *completion)
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{
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while (atomic_read(&completion->atom)) {
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spdk_pause();
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}
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}
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void
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env_completion_complete(env_completion *completion)
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{
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atomic_set(&completion->atom, 0);
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}
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/* *** CRC *** */
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uint32_t
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env_crc32(uint32_t crc, uint8_t const *message, size_t len)
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{
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return spdk_crc32_ieee_update(message, len, crc);
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}
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