Commit c3cae491 authored by Amit Cohen's avatar Amit Cohen Committed by David S. Miller
Browse files

devlink: Add overlay source MAC is multicast trap 



Add packet trap that can report NVE packets that the device decided to
drop because their overlay source MAC is multicast.

Signed-off-by: default avatarAmit Cohen <amitc@mellanox.com>
Acked-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 27942c70

Documentation/networking/devlink/devlink-trap.rst

+4 −0
Original line number Diff line number Diff line
@@ -234,6 +234,10 @@ be added to the following table: 
     - Traps NVE and IPinIP packets that the device decided to drop because of

       failure during decapsulation (e.g., packet being too short, reserved

       bits set in VXLAN header)

   * - ``overlay_smac_is_mc``

     - ``drop``

     - Traps NVE packets that the device decided to drop because their overlay

       source MAC is multicast



Driver-specific Packet Traps

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

include/net/devlink.h

+3 −0
Original line number Diff line number Diff line
@@ -593,6 +593,7 @@ enum devlink_trap_generic_id { 
	DEVLINK_TRAP_GENERIC_ID_IPV6_LPM_UNICAST_MISS,

	DEVLINK_TRAP_GENERIC_ID_NON_ROUTABLE,

	DEVLINK_TRAP_GENERIC_ID_DECAP_ERROR,

	DEVLINK_TRAP_GENERIC_ID_OVERLAY_SMAC_MC,



	/* Add new generic trap IDs above */

	__DEVLINK_TRAP_GENERIC_ID_MAX,
@@ -666,6 +667,8 @@ enum devlink_trap_group_generic_id { 
	"non_routable_packet"

#define DEVLINK_TRAP_GENERIC_NAME_DECAP_ERROR \

	"decap_error"

#define DEVLINK_TRAP_GENERIC_NAME_OVERLAY_SMAC_MC \

	"overlay_smac_is_mc"



#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \

	"l2_drops"

net/core/devlink.c

+1 −0
Original line number Diff line number Diff line
@@ -7708,6 +7708,7 @@ static const struct devlink_trap devlink_trap_generic[] = { 
	DEVLINK_TRAP(IPV6_LPM_UNICAST_MISS, EXCEPTION),

	DEVLINK_TRAP(NON_ROUTABLE, DROP),

	DEVLINK_TRAP(DECAP_ERROR, EXCEPTION),

	DEVLINK_TRAP(OVERLAY_SMAC_MC, DROP),

};



#define DEVLINK_TRAP_GROUP(_id)						      \

CRA Git | Maintained and supported by SUSTech CRA and CCSE