diff options
| author | Amit Cohen <amitc@mellanox.com> | 2020-01-19 15:00:48 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-01-19 16:23:52 +0100 |
| commit | 95f0ead8f04bec18e474594ef585f3734bd85b4c (patch) | |
| tree | c05e3f18456473a7a7234ceeb16448eadbebfb0a | |
| parent | 740e87bc3db8fe299e17877b7055e9ae3c33e4e6 (diff) | |
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: Amit Cohen <amitc@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | Documentation/networking/devlink/devlink-trap.rst | 6 | ||||
| -rw-r--r-- | include/net/devlink.h | 3 | ||||
| -rw-r--r-- | net/core/devlink.c | 1 |
3 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/networking/devlink/devlink-trap.rst b/Documentation/networking/devlink/devlink-trap.rst index 68245ea387ad..a62e1d6eb3e4 100644 --- a/Documentation/networking/devlink/devlink-trap.rst +++ b/Documentation/networking/devlink/devlink-trap.rst @@ -223,6 +223,12 @@ be added to the following table: * - ``ipv6_lpm_miss`` - ``exception`` - 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 ============================ diff --git a/include/net/devlink.h b/include/net/devlink.h index a6856f1d5d1f..08b757753e1c 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -591,6 +591,7 @@ enum devlink_trap_generic_id { DEVLINK_TRAP_GENERIC_ID_REJECT_ROUTE, DEVLINK_TRAP_GENERIC_ID_IPV4_LPM_UNICAST_MISS, DEVLINK_TRAP_GENERIC_ID_IPV6_LPM_UNICAST_MISS, + DEVLINK_TRAP_GENERIC_ID_NON_ROUTABLE, /* Add new generic trap IDs above */ __DEVLINK_TRAP_GENERIC_ID_MAX, @@ -659,6 +660,8 @@ enum devlink_trap_group_generic_id { "ipv4_lpm_miss" #define DEVLINK_TRAP_GENERIC_NAME_IPV6_LPM_UNICAST_MISS \ "ipv6_lpm_miss" +#define DEVLINK_TRAP_GENERIC_NAME_NON_ROUTABLE \ + "non_routable_packet" #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \ "l2_drops" diff --git a/net/core/devlink.c b/net/core/devlink.c index d30aa47052aa..c10e38d724bc 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -7706,6 +7706,7 @@ static const struct devlink_trap devlink_trap_generic[] = { DEVLINK_TRAP(REJECT_ROUTE, EXCEPTION), DEVLINK_TRAP(IPV4_LPM_UNICAST_MISS, EXCEPTION), DEVLINK_TRAP(IPV6_LPM_UNICAST_MISS, EXCEPTION), + DEVLINK_TRAP(NON_ROUTABLE, DROP), }; #define DEVLINK_TRAP_GROUP(_id) \ |