nvme_get_features_host_mem_buf2 - Man Page

int nvme_get_features_host_mem_buf2 (int fd , enum nvme_get_features_sel sel , struct nvme_host_mem_buf_attrs *attrs , __u32 *result );

fd

File descriptor of nvme device

sel

Select which type of attribute to return, see enum nvme_get_features_sel

attrs

Buffer for returned Host Memory Buffer Attributes

result

The command completion result from CQE dword0

The nvme command status if a response was received (see enum nvme_status_field) or -1 with errno set otherwise.