rte_eal_memconfig.h

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2010-2014 Intel Corporation
 */

#ifndef _RTE_EAL_MEMCONFIG_H_
#define _RTE_EAL_MEMCONFIG_H_

#include <rte_config.h>
#include <rte_tailq.h>
#include <rte_memory.h>
#include <rte_memzone.h>
#include <rte_malloc_heap.h>
#include <rte_rwlock.h>
#include <rte_pause.h>

#ifdef __cplusplus
extern "C" {
#endif

struct rte_mem_config {
    volatile uint32_t magic;   
    /* memory topology */
    uint32_t nchannel;    
    uint32_t nrank;       
    rte_rwlock_t mlock;   
    rte_rwlock_t qlock;   
    rte_rwlock_t mplock;  
    uint32_t memzone_cnt; 
    /* memory segments and zones */
    struct rte_memseg memseg[RTE_MAX_MEMSEG];    
    struct rte_memzone memzone[RTE_MAX_MEMZONE]; 
    struct rte_tailq_head tailq_head[RTE_MAX_TAILQ]; 
    /* Heaps of Malloc per socket */
    struct malloc_heap malloc_heaps[RTE_MAX_NUMA_NODES];

    /* address of mem_config in primary process. used to map shared config into
     * exact same address the primary process maps it.
     */
    uint64_t mem_cfg_addr;
} __attribute__((__packed__));


inline static void
rte_eal_mcfg_wait_complete(struct rte_mem_config* mcfg)
{
    /* wait until shared mem_config finish initialising */
    while(mcfg->magic != RTE_MAGIC)
        rte_pause();
}

#ifdef __cplusplus
}
#endif

#endif /*__RTE_EAL_MEMCONFIG_H_*/