mlxsw: Register physical ports as a devlink resource

The switch ASIC has a limited capacity of physical ('flavour physical'
in devlink terminology) ports that it can support. While each system is
brought up with a different number of ports, this number can be
increased via splitting up to the ASIC's limit.

Expose physical ports as a devlink resource so that user space will have
visibility to the maximum number of ports that can be supported and the
current occupancy.

In addition, add a "Generic Resources" section in devlink-resource
documentation so the different drivers will be aligned by the same resource
name when exposing to user space.

Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

This commit is contained in:

Danielle Ratson

2021-01-22 20:42:13 -08:00

committed by

Jakub Kicinski

parent 351876424e

commit 321f7ab0d4

6 changed files with 93 additions and 11 deletions

									
										include/net/devlink.h
									
		+2
		
												View File
												
				@@ -380,6 +380,8 @@ struct devlink_resource {

				#define DEVLINK_RESOURCE_ID_PARENT_TOP 0

				#define DEVLINK_RESOURCE_GENERIC_NAME_PORTS "physical_ports"

				#define __DEVLINK_PARAM_MAX_STRING_VALUE 32

				enum devlink_param_type {

					DEVLINK_PARAM_TYPE_U8,