net: sched: add couple of goto_chain helpers

Add helpers to find out if a gact instance is goto_chain termination
action and to get chain index.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/tc_act/tc_gact.h b/include/net/tc_act/tc_gact.h
index d576374..41afe1c 100644 (file)
--- a/include/net/tc_act/tc_gact.h
+++ b/include/net/tc_act/tc_gact.h
@@ -15,7 +15,8 @@ struct tcf_gact {
 };
 #define to_gact(a) ((struct tcf_gact *)a)
 
-static inline bool __is_tcf_gact_act(const struct tc_action *a, int act)
+static inline bool __is_tcf_gact_act(const struct tc_action *a, int act,
+                                    bool is_ext)
 {
 #ifdef CONFIG_NET_CLS_ACT
        struct tcf_gact *gact;
@@ -24,7 +25,8 @@ static inline bool __is_tcf_gact_act(const struct tc_action *a, int act)
                return false;
 
        gact = to_gact(a);
-       if (gact->tcf_action == act)
+       if ((!is_ext && gact->tcf_action == act) ||
+           (is_ext && TC_ACT_EXT_CMP(gact->tcf_action, act)))
                return true;
 
 #endif
@@ -33,12 +35,22 @@ static inline bool __is_tcf_gact_act(const struct tc_action *a, int act)
 
 static inline bool is_tcf_gact_shot(const struct tc_action *a)
 {
-       return __is_tcf_gact_act(a, TC_ACT_SHOT);
+       return __is_tcf_gact_act(a, TC_ACT_SHOT, false);
 }
 
 static inline bool is_tcf_gact_trap(const struct tc_action *a)
 {
-       return __is_tcf_gact_act(a, TC_ACT_TRAP);
+       return __is_tcf_gact_act(a, TC_ACT_TRAP, false);
+}
+
+static inline bool is_tcf_gact_goto_chain(const struct tc_action *a)
+{
+       return __is_tcf_gact_act(a, TC_ACT_GOTO_CHAIN, true);
+}
+
+static inline u32 tcf_gact_goto_chain_index(const struct tc_action *a)
+{
+       return a->goto_chain->index;
 }
 
 #endif /* __NET_TC_GACT_H */