Commit e78ab164 authored by Aya Levin's avatar Aya Levin Committed by Jakub Kicinski
Browse files

devlink: Add DMAC filter generic packet trap 



Add packet trap that can report packets that were dropped due to
destination MAC filtering.

Signed-off-by: default avatarAya Levin <ayal@nvidia.com>
Reviewed-by: default avatarIdo Schimmel <idosch@nvidia.com>
Reviewed-by: default avatarMoshe Shemesh <moshe@nvidia.com>
Reviewed-by: default avatarTariq Toukan <tariqt@nvidia.com>
Signed-off-by: default avatarTariq Toukan <tariqt@nvidia.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 63368a74

Documentation/networking/devlink/devlink-trap.rst

+5 −0
Original line number Diff line number Diff line
@@ -480,6 +480,11 @@ be added to the following table: 
     - ``drop``

     - Traps packets that the device decided to drop in case they hit a

       blackhole nexthop

   * - ``dmac_filter``

     - ``drop``

     - Traps incoming packets that the device decided to drop because

       the destination MAC is not configured in the MAC table and

       the interface is not in promiscuous mode



Driver-specific Packet Traps

============================

include/net/devlink.h

+3 −0
Original line number Diff line number Diff line
@@ -838,6 +838,7 @@ enum devlink_trap_generic_id { 
	DEVLINK_TRAP_GENERIC_ID_GTP_PARSING,

	DEVLINK_TRAP_GENERIC_ID_ESP_PARSING,

	DEVLINK_TRAP_GENERIC_ID_BLACKHOLE_NEXTHOP,

	DEVLINK_TRAP_GENERIC_ID_DMAC_FILTER,



	/* Add new generic trap IDs above */

	__DEVLINK_TRAP_GENERIC_ID_MAX,
@@ -1063,6 +1064,8 @@ enum devlink_trap_group_generic_id { 
	"esp_parsing"

#define DEVLINK_TRAP_GENERIC_NAME_BLACKHOLE_NEXTHOP \

	"blackhole_nexthop"

#define DEVLINK_TRAP_GENERIC_NAME_DMAC_FILTER \

	"dest_mac_filter"



#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \

	"l2_drops"

net/core/devlink.c

+1 −0
Original line number Diff line number Diff line
@@ -9512,6 +9512,7 @@ static const struct devlink_trap devlink_trap_generic[] = { 
	DEVLINK_TRAP(GTP_PARSING, DROP),

	DEVLINK_TRAP(ESP_PARSING, DROP),

	DEVLINK_TRAP(BLACKHOLE_NEXTHOP, DROP),

	DEVLINK_TRAP(DMAC_FILTER, DROP),

};



#define DEVLINK_TRAP_GROUP(_id)						      \