Add a new diag attribute group under: /sys/class/nvme/<ctrl>/ /sys/block/<nvme-path-dev>/ /sys/block/<ns-head-dev>/ This new sysfs attribute group will be used to organize NVMe diagnostic and telemetry-related counters under it. Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org>