b2d5bfd0d1
Add rte_pause to waiting while loop This commit also adds spdk_pause as interface for rte_pause Change-Id: I56e1023731e2e78febaa4f45808d6f07656d290f Signed-off-by: Vitaliy Mysak <vitaliy.mysak@intel.com> Reviewed-on: https://review.gerrithub.io/c/436494 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com> Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
122 lines
3.4 KiB
C
122 lines
3.4 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
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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 32768
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/* Use unique index for env allocators */
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static int 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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return spdk_mempool_get(allocator);
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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", g_env_allocator_index++);
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allocator = 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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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, 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)) {
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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);
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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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