Commit 95f0ead8 authored by Amit Cohen's avatar Amit Cohen Committed by David S. Miller

devlink: Add non-routable packet trap

Add packet trap that can report packets that reached the router, but are
non-routable. For example, IGMP queries can be flooded by the device in
layer 2 and reach the router. Such packets should not be routed and
instead dropped.
Signed-off-by: default avatarAmit Cohen <amitc@mellanox.com>
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 740e87bc
...@@ -223,6 +223,12 @@ be added to the following table: ...@@ -223,6 +223,12 @@ be added to the following table:
* - ``ipv6_lpm_miss`` * - ``ipv6_lpm_miss``
- ``exception`` - ``exception``
- Traps unicast IPv6 packets that did not match any route - Traps unicast IPv6 packets that did not match any route
* - ``non_routable_packet``
- ``drop``
- Traps packets that the device decided to drop because they are not
supposed to be routed. For example, IGMP queries can be flooded by the
device in layer 2 and reach the router. Such packets should not be
routed and instead dropped
Driver-specific Packet Traps Driver-specific Packet Traps
============================ ============================
......
...@@ -591,6 +591,7 @@ enum devlink_trap_generic_id { ...@@ -591,6 +591,7 @@ enum devlink_trap_generic_id {
DEVLINK_TRAP_GENERIC_ID_REJECT_ROUTE, DEVLINK_TRAP_GENERIC_ID_REJECT_ROUTE,
DEVLINK_TRAP_GENERIC_ID_IPV4_LPM_UNICAST_MISS, DEVLINK_TRAP_GENERIC_ID_IPV4_LPM_UNICAST_MISS,
DEVLINK_TRAP_GENERIC_ID_IPV6_LPM_UNICAST_MISS, DEVLINK_TRAP_GENERIC_ID_IPV6_LPM_UNICAST_MISS,
DEVLINK_TRAP_GENERIC_ID_NON_ROUTABLE,
/* Add new generic trap IDs above */ /* Add new generic trap IDs above */
__DEVLINK_TRAP_GENERIC_ID_MAX, __DEVLINK_TRAP_GENERIC_ID_MAX,
...@@ -659,6 +660,8 @@ enum devlink_trap_group_generic_id { ...@@ -659,6 +660,8 @@ enum devlink_trap_group_generic_id {
"ipv4_lpm_miss" "ipv4_lpm_miss"
#define DEVLINK_TRAP_GENERIC_NAME_IPV6_LPM_UNICAST_MISS \ #define DEVLINK_TRAP_GENERIC_NAME_IPV6_LPM_UNICAST_MISS \
"ipv6_lpm_miss" "ipv6_lpm_miss"
#define DEVLINK_TRAP_GENERIC_NAME_NON_ROUTABLE \
"non_routable_packet"
#define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \ #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \
"l2_drops" "l2_drops"
......
...@@ -7706,6 +7706,7 @@ static const struct devlink_trap devlink_trap_generic[] = { ...@@ -7706,6 +7706,7 @@ static const struct devlink_trap devlink_trap_generic[] = {
DEVLINK_TRAP(REJECT_ROUTE, EXCEPTION), DEVLINK_TRAP(REJECT_ROUTE, EXCEPTION),
DEVLINK_TRAP(IPV4_LPM_UNICAST_MISS, EXCEPTION), DEVLINK_TRAP(IPV4_LPM_UNICAST_MISS, EXCEPTION),
DEVLINK_TRAP(IPV6_LPM_UNICAST_MISS, EXCEPTION), DEVLINK_TRAP(IPV6_LPM_UNICAST_MISS, EXCEPTION),
DEVLINK_TRAP(NON_ROUTABLE, DROP),
}; };
#define DEVLINK_TRAP_GROUP(_id) \ #define DEVLINK_TRAP_GROUP(_id) \
......
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