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| author | Amit Cohen <amitc@mellanox.com> | 2019-11-07 17:42:09 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-11-08 04:51:40 +0100 |
| commit | 6896cc4d8fe6fe6163d6f0baa02a270da68896e8 (patch) | |
| tree | 69c4a73d3a49f77cb494f50217453f7364335b3f /Documentation/networking | |
| parent | enetc: fix return value for enetc_ioctl() (diff) | |
| download | linux-6896cc4d8fe6fe6163d6f0baa02a270da68896e8.tar.xz linux-6896cc4d8fe6fe6163d6f0baa02a270da68896e8.zip | |
devlink: Add layer 3 generic packet traps
Add packet traps that can report packets that were dropped during layer
3 forwarding.
Signed-off-by: Amit Cohen <amitc@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
| -rw-r--r-- | Documentation/networking/devlink-trap.rst | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/Documentation/networking/devlink-trap.rst b/Documentation/networking/devlink-trap.rst index 8e90a85f3bd5..dc3dc87217c9 100644 --- a/Documentation/networking/devlink-trap.rst +++ b/Documentation/networking/devlink-trap.rst @@ -162,6 +162,47 @@ be added to the following table: - ``drop`` - Traps packets that the device decided to drop because they could not be enqueued to a transmission queue which is full + * - ``non_ip`` + - ``drop`` + - Traps packets that the device decided to drop because they need to + undergo a layer 3 lookup, but are not IP or MPLS packets + * - ``uc_dip_over_mc_dmac`` + - ``drop`` + - Traps packets that the device decided to drop because they need to be + routed and they have a unicast destination IP and a multicast destination + MAC + * - ``dip_is_loopback_address`` + - ``drop`` + - Traps packets that the device decided to drop because they need to be + routed and their destination IP is the loopback address (i.e., 127.0.0.0/8 + and ::1/128) + * - ``sip_is_mc`` + - ``drop`` + - Traps packets that the device decided to drop because they need to be + routed and their source IP is multicast (i.e., 224.0.0.0/8 and ff::/8) + * - ``sip_is_loopback_address`` + - ``drop`` + - Traps packets that the device decided to drop because they need to be + routed and their source IP is the loopback address (i.e., 127.0.0.0/8 and ::1/128) + * - ``ip_header_corrupted`` + - ``drop`` + - Traps packets that the device decided to drop because they need to be + routed and their IP header is corrupted: wrong checksum, wrong IP version + or too short Internet Header Length (IHL) + * - ``ipv4_sip_is_limited_bc`` + - ``drop`` + - Traps packets that the device decided to drop because they need to be + routed and their source IP is limited broadcast (i.e., 255.255.255.255/32) + * - ``ipv6_mc_dip_reserved_scope`` + - ``drop`` + - Traps IPv6 packets that the device decided to drop because they need to + be routed and their IPv6 multicast destination IP has a reserved scope + (i.e., ffx0::/16) + * - ``ipv6_mc_dip_interface_local_scope`` + - ``drop`` + - Traps IPv6 packets that the device decided to drop because they need to + be routed and their IPv6 multicast destination IP has an interface-local scope + (i.e., ffx1::/16) Driver-specific Packet Traps ============================ |