DOKK / manpages / debian 13 / libnvme-dev / nvme_lm_io_completion_queue_data.2.en
libnvme(2) API Manual libnvme(2)

struct nvme_lm_io_completion_queue_data - I/O Completion Queue data structure. Fields related to the contents of Create I/O Completion Queue command that created an I/O Completion Queue.

struct nvme_lm_io_completion_queue_data {
__le64 iocqprp1;
__le16 iocqqsize;
__le16 iocqqid;
__le16 iocqhp;
__le16 iocqtp;
__le32 iocqa;
__u8 rsvd20[4];
};

I/O Completion Queue PRP Entry 1 (IOCQPRP1)
I/O Completion Queue Size (IOCQQSIZE)
I/O Completion Queue Identifier (IOCQQID)
I/O Completion Queue Head Pointer (IOCQHP)
I/O Completion Queue Tail Pointer (IOCQTP)
I/O Completion Queue Attributes (IOCQA)
Reserved
struct nvme_lm_io_completion_queue_data May 2025