---
name: "nvme_id_ctrl_nvm-libnvme3"
section: "2"
platform: "linux"
package: "nvme-cli"
version: "3.2-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/nvme_id_ctrl_nvm-libnvme3"
---

# nvme\_id\_ctrl\_nvm-libnvme3(2)

I/O Command Set Specific Identify Controller data structure

## NAME

struct nvme\_id\_ctrl\_nvm - I/O Command Set Specific Identify Controller data structure

## SYNOPSIS

struct nvme\_id\_ctrl\_nvm {\
     **\_\_u8 vsl;**\
     **\_\_u8 wzsl;**\
     **\_\_u8 wusl;**\
     **\_\_u8 dmrl;**\
     **\_\_le32 dmrsl;**\
     **\_\_le64 dmsl;**\
     **\_\_u8 kpiocap;**\
     **\_\_u8 wzdsl;**\
     **\_\_le16 aocs;**\
     **\_\_le32 ver;**\
     **\_\_u8 lbamqf;**\
     **\_\_u8 rla;**\
     **\_\_le16 slmc;**\
     **\_\_u8 rsvd28\[4068\];**\
 };\

## Members

- vsl

  Verify Size Limit

- wzsl

  Write Zeroes Size Limit

- wusl

  Write Uncorrectable Size Limit

- dmrl

  Dataset Management Ranges Limit

- dmrsl

  Dataset Management Range Size Limit

- dmsl

  Dataset Management Size Limit

- kpiocap

  Key Per I/O Capabilities

- wzdsl

  Write Zeroes With Deallocate Size Limit

- aocs

  Admin Optional Command Support

- ver

  Version

- lbamqf

  LBA Migration Queue Format

- rla

  Rate Limiting Attributes, see *enum nvme\_id\_ctrl\_nvm\_rla*

- slmc

  Soft Limit Maximum Controllers (0's based), valid only if SLS is set

- rsvd28

  Reserved