mirror of https://github.com/F-Stack/f-stack.git
103 lines
3.6 KiB
C
103 lines
3.6 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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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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#ifndef _RTE_EAL_MEMCONFIG_H_
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#define _RTE_EAL_MEMCONFIG_H_
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#include <rte_config.h>
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#include <rte_tailq.h>
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#include <rte_memory.h>
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#include <rte_memzone.h>
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#include <rte_malloc_heap.h>
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#include <rte_rwlock.h>
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#include <rte_pause.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* the structure for the memory configuration for the RTE.
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* Used by the rte_config structure. It is separated out, as for multi-process
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* support, the memory details should be shared across instances
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*/
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struct rte_mem_config {
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volatile uint32_t magic; /**< Magic number - Sanity check. */
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/* memory topology */
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uint32_t nchannel; /**< Number of channels (0 if unknown). */
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uint32_t nrank; /**< Number of ranks (0 if unknown). */
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/**
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* current lock nest order
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* - qlock->mlock (ring/hash/lpm)
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* - mplock->qlock->mlock (mempool)
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* Notice:
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* *ALWAYS* obtain qlock first if having to obtain both qlock and mlock
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*/
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rte_rwlock_t mlock; /**< only used by memzone LIB for thread-safe. */
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rte_rwlock_t qlock; /**< used for tailq operation for thread safe. */
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rte_rwlock_t mplock; /**< only used by mempool LIB for thread-safe. */
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uint32_t memzone_cnt; /**< Number of allocated memzones */
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/* memory segments and zones */
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struct rte_memseg memseg[RTE_MAX_MEMSEG]; /**< Physmem descriptors. */
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struct rte_memzone memzone[RTE_MAX_MEMZONE]; /**< Memzone descriptors. */
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struct rte_tailq_head tailq_head[RTE_MAX_TAILQ]; /**< Tailqs for objects */
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/* Heaps of Malloc per socket */
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struct malloc_heap malloc_heaps[RTE_MAX_NUMA_NODES];
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/* address of mem_config in primary process. used to map shared config into
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* exact same address the primary process maps it.
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*/
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uint64_t mem_cfg_addr;
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} __attribute__((__packed__));
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inline static void
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rte_eal_mcfg_wait_complete(struct rte_mem_config* mcfg)
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{
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/* wait until shared mem_config finish initialising */
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while(mcfg->magic != RTE_MAGIC)
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rte_pause();
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /*__RTE_EAL_MEMCONFIG_H_*/
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