Merge branch 'flow_offload-tc-police-parameters'

Jianbo Liu says:

====================
flow_offload: add tc police parameters

As a preparation for more advanced police offload in mlx5 (e.g.,
jumping to another chain when bandwidth is not exceeded), extend the
flow offload API with more tc-police parameters. Adjust existing
drivers to reject unsupported configurations.

Changes since v2:
  * Rename index to extval in exceed and notexceed acts.
  * Add policer validate functions for all drivers.

Changes since v1:
  * Add one more strict validation for the control of drop/ok.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 45 insertions, 0 deletions

diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h
index 5b8c54eb7a6b..92267d23083e 100644
--- a/include/net/flow_offload.h
+++ b/include/net/flow_offload.h
@@ -148,6 +148,8 @@ enum flow_action_id {
 	FLOW_ACTION_MPLS_MANGLE,
 	FLOW_ACTION_GATE,
 	FLOW_ACTION_PPPOE_PUSH,
+	FLOW_ACTION_JUMP,
+	FLOW_ACTION_PIPE,
 	NUM_FLOW_ACTIONS,
 };
 
@@ -235,9 +237,16 @@ struct flow_action_entry {
 		struct {				/* FLOW_ACTION_POLICE */
 			u32			burst;
 			u64			rate_bytes_ps;
+			u64			peakrate_bytes_ps;
+			u32			avrate;
+			u16			overhead;
 			u64			burst_pkt;
 			u64			rate_pkt_ps;
 			u32			mtu;
+			struct {
+				enum flow_action_id	act_id;
+				u32			extval;
+			} exceed, notexceed;
 		} police;
 		struct {				/* FLOW_ACTION_CT */
 			int action;
@@ -302,6 +311,12 @@ static inline bool flow_offload_has_one_action(const struct flow_action *action)
 	return action->num_entries == 1;
 }
 
+static inline bool flow_action_is_last_entry(const struct flow_action *action,
+					     const struct flow_action_entry *entry)
+{
+	return entry == &action->entries[action->num_entries - 1];
+}
+
 #define flow_action_for_each(__i, __act, __actions)			\
         for (__i = 0, __act = &(__actions)->entries[0];			\
 	     __i < (__actions)->num_entries;				\
diff --git a/include/net/tc_act/tc_police.h b/include/net/tc_act/tc_police.h
index 72649512dcdd..283bde711a42 100644
--- a/include/net/tc_act/tc_police.h
+++ b/include/net/tc_act/tc_police.h
@@ -159,4 +159,34 @@ static inline u32 tcf_police_tcfp_mtu(const struct tc_action *act)
 	return params->tcfp_mtu;
 }
 
+static inline u64 tcf_police_peakrate_bytes_ps(const struct tc_action *act)
+{
+	struct tcf_police *police = to_police(act);
+	struct tcf_police_params *params;
+
+	params = rcu_dereference_protected(police->params,
+					   lockdep_is_held(&police->tcf_lock));
+	return params->peak.rate_bytes_ps;
+}
+
+static inline u32 tcf_police_tcfp_ewma_rate(const struct tc_action *act)
+{
+	struct tcf_police *police = to_police(act);
+	struct tcf_police_params *params;
+
+	params = rcu_dereference_protected(police->params,
+					   lockdep_is_held(&police->tcf_lock));
+	return params->tcfp_ewma_rate;
+}
+
+static inline u16 tcf_police_rate_overhead(const struct tc_action *act)
+{
+	struct tcf_police *police = to_police(act);
+	struct tcf_police_params *params;
+
+	params = rcu_dereference_protected(police->params,
+					   lockdep_is_held(&police->tcf_lock));
+	return params->rate.overhead;
+}
+
 #endif /* __NET_TC_POLICE_H */