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NVME_ADMIN_SUBMISSION_QUEUE_BASE_ADDRESS union (nvme.h)

  • Article

Contains the base memory address of the Admin Submission Queue.

Syntax

typedef union {
  struct {
    ULONGLONG Reserved0 : 12;
    ULONGLONG ASQB : 52;
  } DUMMYSTRUCTNAME;
  ULONGLONG AsUlonglong;
} NVME_ADMIN_SUBMISSION_QUEUE_BASE_ADDRESS, *PNVME_ADMIN_SUBMISSION_QUEUE_BASE_ADDRESS;

Members

DUMMYSTRUCTNAME

DUMMYSTRUCTNAME.Reserved0

A Read Only reserved field.

DUMMYSTRUCTNAME.ASQB

Admin Submission Queue Base (ASQB) is a Read/Write field that indicates the 64-bit physical address for the Admin Submission Queue.

This address is memory page aligned based on the value in contiguous Memory Page Size (MPS) units. All Admin commands, including creation of I/O Submission Queues and I/O Completions Queues are submitted to this queue.

AsUlonglong

Requirements

Requirement Value
Minimum supported client Windows 10
Header nvme.h