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| author |   Paul Blakey <paulb@mellanox.com> | 2020-02-16 12:01:21 +0200 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@mellanox.com> | 2020-02-19 17:49:48 -0800 |
| commit | 9410c9409d3e3a1ee6a02a830f9b6ab678c456d1 (patch) | |
| tree | 40d255675901e2c92324989ce74a74ee7b85d749 /include/net/pkt_cls.h | |
| parent | tc-testing: updated tdc tests for basic filter (diff) | |
| download | linux-dev-9410c9409d3e3a1ee6a02a830f9b6ab678c456d1.tar.xz linux-dev-9410c9409d3e3a1ee6a02a830f9b6ab678c456d1.zip | |
net: sched: Introduce ingress classification function
TC multi chain configuration can cause offloaded tc chains to miss in
hardware after jumping to some chain. In such cases the software should
continue from the chain that missed in hardware, as the hardware may
have manipulated the packet and updated some counters.
Currently a single tcf classification function serves both ingress and
egress. However, multi chain miss processing (get tc skb extension on
hw miss, set tc skb extension on tc miss) should happen only on
ingress.
Refactor the code to use ingress classification function, and move setting
the tc skb extension from general classification to it, as a prestep
for supporting the hw miss scenario.
Co-developed-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'include/net/pkt_cls.h')
| -rw-r--r-- | include/net/pkt_cls.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h index 53946b509b51..109cbe3a0d51 100644 --- a/include/net/pkt_cls.h +++ b/include/net/pkt_cls.h @@ -72,6 +72,8 @@ static inline struct Qdisc *tcf_block_q(struct tcf_block *block) int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, struct tcf_result *res, bool compat_mode); +int tcf_classify_ingress(struct sk_buff *skb, const struct tcf_proto *tp, + struct tcf_result *res, bool compat_mode); #else static inline bool tcf_block_shared(struct tcf_block *block) @@ -133,6 +135,14 @@ static inline int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, { return TC_ACT_UNSPEC; } + +static inline int tcf_classify_ingress(struct sk_buff *skb, + const struct tcf_proto *tp, + struct tcf_result *res, bool compat_mode) +{ + return TC_ACT_UNSPEC; +} + #endif static inline unsigned long |