mirror of https://github.com/F-Stack/f-stack.git
108 lines
3.0 KiB
C
108 lines
3.0 KiB
C
/* 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>
|
|
#include <rte_fbarray.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* memseg list is a special case as we need to store a bunch of other data
|
|
* together with the array itself.
|
|
*/
|
|
struct rte_memseg_list {
|
|
RTE_STD_C11
|
|
union {
|
|
void *base_va;
|
|
/**< Base virtual address for this memseg list. */
|
|
uint64_t addr_64;
|
|
/**< Makes sure addr is always 64-bits */
|
|
};
|
|
uint64_t page_sz; /**< Page size for all memsegs in this list. */
|
|
int socket_id; /**< Socket ID for all memsegs in this list. */
|
|
volatile uint32_t version; /**< version number for multiprocess sync. */
|
|
size_t len; /**< Length of memory area covered by this memseg list. */
|
|
unsigned int external; /**< 1 if this list points to external memory */
|
|
struct rte_fbarray memseg_arr;
|
|
};
|
|
|
|
/**
|
|
* the structure for the memory configuration for the RTE.
|
|
* Used by the rte_config structure. It is separated out, as for multi-process
|
|
* support, the memory details should be shared across instances
|
|
*/
|
|
struct rte_mem_config {
|
|
volatile uint32_t magic; /**< Magic number - Sanity check. */
|
|
|
|
/* memory topology */
|
|
uint32_t nchannel; /**< Number of channels (0 if unknown). */
|
|
uint32_t nrank; /**< Number of ranks (0 if unknown). */
|
|
|
|
/**
|
|
* current lock nest order
|
|
* - qlock->mlock (ring/hash/lpm)
|
|
* - mplock->qlock->mlock (mempool)
|
|
* Notice:
|
|
* *ALWAYS* obtain qlock first if having to obtain both qlock and mlock
|
|
*/
|
|
rte_rwlock_t mlock; /**< only used by memzone LIB for thread-safe. */
|
|
rte_rwlock_t qlock; /**< used for tailq operation for thread safe. */
|
|
rte_rwlock_t mplock; /**< only used by mempool LIB for thread-safe. */
|
|
|
|
rte_rwlock_t memory_hotplug_lock;
|
|
/**< indicates whether memory hotplug request is in progress. */
|
|
|
|
/* memory segments and zones */
|
|
struct rte_fbarray memzones; /**< Memzone descriptors. */
|
|
|
|
struct rte_memseg_list memsegs[RTE_MAX_MEMSEG_LISTS];
|
|
/**< list of dynamic arrays holding memsegs */
|
|
|
|
struct rte_tailq_head tailq_head[RTE_MAX_TAILQ]; /**< Tailqs for objects */
|
|
|
|
/* Heaps of Malloc */
|
|
struct malloc_heap malloc_heaps[RTE_MAX_HEAPS];
|
|
|
|
/* next socket ID for external malloc heap */
|
|
int next_socket_id;
|
|
|
|
/* 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;
|
|
|
|
/* legacy mem and single file segments options are shared */
|
|
uint32_t legacy_mem;
|
|
uint32_t single_file_segments;
|
|
|
|
/* keeps the more restricted dma mask */
|
|
uint8_t dma_maskbits;
|
|
} __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_*/
|