On 11/19/21 00:39, Hannes Reinecke wrote:

Currently applications have a hard time figuring out which
nvme-over-fabrics arguments are supported for any given kernel;
the ioctl will return an error code on failure, and the application
has to guess whether this was due to an invalid argument or due
to a connection or controller error.
With this patch applications can read a list of supported
arguments by simply reading from /dev/nvme-fabrics, allowing
them to validate the connection string.

Signed-off-by: Hannes Reinecke <hare@suse.de>

this seems useful and will avoid a trip to the source code.

Looks good.

Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>