devlink: add a new info version tag

Add definition and documentation for the new generic
info "board.part_number".

The new one is for part number specific use, and board.id
is modified to match the documentation in devlink-info.
Signed-off-by: Fei Qin <fei.qin@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/networking/devlink/devlink-info.rst

@@ -146,6 +146,11 @@ board.manufacture
 
 An identifier of the company or the facility which produced the part.
 
+board.part_number
+-----------------
+
+Part number of the board and its components.
+
 fw
 --
 

include/net/devlink.h

@@ -599,12 +599,14 @@ enum devlink_param_generic_id {
 	.validate = _validate,						\
 }
 
-/* Part number, identifier of board design */
+/* Identifier of board design */
 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_ID	"board.id"
 /* Revision of board design */
 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_REV	"board.rev"
 /* Maker of the board */
 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE	"board.manufacture"
+/* Part number of the board and its components */
+#define DEVLINK_INFO_VERSION_GENERIC_BOARD_PART_NUMBER	"board.part_number"
 
 /* Part number, identifier of asic design */
 #define DEVLINK_INFO_VERSION_GENERIC_ASIC_ID	"asic.id"