[RFC v3 1/1] nvme: add passthrough error logging opt-in

[Pankaj Raghav]

On Fri, Mar 31, 2023 at 03:18:23PM -0700, Alan Adamson wrote:
> Commit d7ac8dca938c ("nvme: quiet user passthrough command errors") disabled error
> logging for user passthrough commands.  This commit adds the ability to opt-in
> to passthrough error logging.
> 
> To enable passthrough error logging:
>         echo 1 > /sys/class/nvme/nvme0/passthrough_logging
passthrough_logging is a bit misleading as it doesn't indicate it is
going to log only passthrough errors. `passthrough_error_logging` is a bit
verbose but it is more apt for what this sysfs entry is doing. Maybe
an abbreviation for passthrough_error_logging?
> 
> To disable passthrough error logging:
>         echo 0 > /sys/class/nvme/nvme0/passthrough_logging
> 
> By default, passthrough error logging will remain disabled.
>