The NVMe 1.4 spec is a bit confusing as some (apparently older) text in
section 5.14 says that if a command "specifies a Log Identifier that is
not supported, then the controller should abort the command with
status Invalid Field in Command." However, later in section 5.14.2 that
describes the response to a Get Log Page command there is a table of
command-specific status values with a single entry for "Invalid Log Page"
with the description:

The log page indicated is invalid or not supported. This error condition
is also returned if a reserved log page is requested. Controllers
compliant with versions 1.3 and earlier of the specification may return
Invalid Field in Command for this condition.

Sponsored by: Chelsio Communications