diff options
| author | Ido Schimmel <idosch@nvidia.com> | 2023-05-29 14:48:29 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-05-30 23:37:00 -0700 |
| commit | d5ccfd90df7fd0a50038a68634c131b8fd081bac (patch) | |
| tree | 2d0d3f8cec61ae53e46dd14928e0b905b3af2ab5 /net/core/flow_dissector.c | |
| parent | 7b4858df3bf7a8d43ed6b58f411543a040c56f10 (diff) | |
flow_dissector: Dissect layer 2 miss from tc skb extension
Extend the 'FLOW_DISSECTOR_KEY_META' key with a new 'l2_miss' field and
populate it from a field with the same name in the tc skb extension.
This field is set by the bridge driver for packets that incur an FDB or
MDB miss.
The next patch will extend the flower classifier to be able to match on
layer 2 misses.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/core/flow_dissector.c')
| -rw-r--r-- | net/core/flow_dissector.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c index 25fb0bbc310f..481ca4080cbd 100644 --- a/net/core/flow_dissector.c +++ b/net/core/flow_dissector.c @@ -27,6 +27,7 @@ #include <linux/tcp.h> #include <linux/ptp_classify.h> #include <net/flow_dissector.h> +#include <net/pkt_cls.h> #include <scsi/fc/fc_fcoe.h> #include <uapi/linux/batadv_packet.h> #include <linux/bpf.h> @@ -241,6 +242,15 @@ void skb_flow_dissect_meta(const struct sk_buff *skb, FLOW_DISSECTOR_KEY_META, target_container); meta->ingress_ifindex = skb->skb_iif; +#if IS_ENABLED(CONFIG_NET_TC_SKB_EXT) + if (tc_skb_ext_tc_enabled()) { + struct tc_skb_ext *ext; + + ext = skb_ext_find(skb, TC_SKB_EXT); + if (ext) + meta->l2_miss = ext->l2_miss; + } +#endif } EXPORT_SYMBOL(skb_flow_dissect_meta); |