Provided by: libnvme-dev_1.3-1~ubuntu22.04_amd64 
NAME
nvme_cmb_size - Calculate size of the controller memory buffer
SYNOPSIS
__u64 nvme_cmb_size (__u32 cmbsz );
ARGUMENTS
cmbsz Value from controller register NVME_REG_CMBSZ
RETURN
size of controller memory buffer in bytes