rte_mem_config Struct Reference

#include <rte_eal_memconfig.h>

Data Fields
volatile uint32_t	magic
uint32_t	nchannel
uint32_t	nrank
rte_rwlock_t	mlock
rte_rwlock_t	qlock
rte_rwlock_t	mplock
rte_rwlock_t	memory_hotplug_lock
struct rte_fbarray	memzones
struct rte_memseg_list	memsegs [RTE_MAX_MEMSEG_LISTS]
struct rte_tailq_head	tailq_head [RTE_MAX_TAILQ]

Detailed Description

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

Definition at line 44 of file rte_eal_memconfig.h.

Field Documentation

volatile uint32_t magic

Magic number - Sanity check.

Definition at line 45 of file rte_eal_memconfig.h.

uint32_t nchannel

Number of channels (0 if unknown).

Definition at line 48 of file rte_eal_memconfig.h.

uint32_t nrank

Number of ranks (0 if unknown).

Definition at line 49 of file rte_eal_memconfig.h.

rte_rwlock_t mlock

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 mlockonly used by memzone LIB for thread-safe.

Definition at line 58 of file rte_eal_memconfig.h.

rte_rwlock_t qlock

used for tailq operation for thread safe.

Definition at line 59 of file rte_eal_memconfig.h.

rte_rwlock_t mplock

only used by mempool LIB for thread-safe.

Definition at line 60 of file rte_eal_memconfig.h.

rte_rwlock_t memory_hotplug_lock

indicates whether memory hotplug request is in progress.

Definition at line 63 of file rte_eal_memconfig.h.

struct rte_fbarray memzones

Memzone descriptors.

Definition at line 66 of file rte_eal_memconfig.h.

struct rte_memseg_list memsegs[RTE_MAX_MEMSEG_LISTS]

list of dynamic arrays holding memsegs

Definition at line 68 of file rte_eal_memconfig.h.

struct rte_tailq_head tailq_head[RTE_MAX_TAILQ]

Tailqs for objects

Definition at line 71 of file rte_eal_memconfig.h.

---

The documentation for this struct was generated from the following file:

• lib/librte_eal/common/include/rte_eal_memconfig.h