libnvme(9) API Manual libnvme(9)

# [NAME](#NAME)

struct nvme\_lm\_nvme\_controller\_state\_data - NVMe Controller State data structure describes the state of a NVMe Controller's I/O Submission and I/O Completion queues

# [SYNOPSIS](#SYNOPSIS)

struct nvme\_lm\_nvme\_controller\_state\_data {  
**struct nvme\_lm\_nvme\_controller\_state\_data\_header hdr;**  
**union {**  
**struct nvme\_lm\_io\_submission\_queue\_data sqs\[0];**  
**struct nvme\_lm\_io\_completion\_queue\_data cqs\[0];**  
**\_\_u8 queue\_data\_buf\[4088];**  
**};**  
};

# [Members](#Members)

[hdr](#hdr)

Header

{unnamed\_union}

anonymous

[sqs](#sqs)

I/O Submission Queue list

[cqs](#cqs)

I/O Completion Queue list

[queue\_data\_buf](#queue_data_buf)

Queue data buffer

struct nvme\_lm\_nvme\_controller\_state\_data October 2026

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Document: nvme_lm_nvme_controller_state_data-libnvme3(2) from nvme-cli 3.2-r0 (Chainguard OS)
Source: https://github.com/linux-nvme/nvme-cli