1 files changed, 97 insertions, 80 deletions
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 269fd78bb0ae..e80edd8879ef 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -11,18 +11,39 @@ struct tcf_walker {
 	int	stop;
 	int	skip;
 	int	count;
-	int	(*fn)(struct tcf_proto *, unsigned long node, struct tcf_walker *);
+	int	(*fn)(struct tcf_proto *, void *node, struct tcf_walker *);
 };
 
 int register_tcf_proto_ops(struct tcf_proto_ops *ops);
 int unregister_tcf_proto_ops(struct tcf_proto_ops *ops);
 
 #ifdef CONFIG_NET_CLS
-void tcf_destroy_chain(struct tcf_proto __rcu **fl);
+struct tcf_chain *tcf_chain_get(struct tcf_block *block, u32 chain_index,
+				bool create);
+void tcf_chain_put(struct tcf_chain *chain);
+int tcf_block_get(struct tcf_block **p_block,
+		  struct tcf_proto __rcu **p_filter_chain);
+void tcf_block_put(struct tcf_block *block);
+int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp,
+		 struct tcf_result *res, bool compat_mode);
+
 #else
-static inline void tcf_destroy_chain(struct tcf_proto __rcu **fl)
+static inline
+int tcf_block_get(struct tcf_block **p_block,
+		  struct tcf_proto __rcu **p_filter_chain)
+{
+	return 0;
+}
+
+static inline void tcf_block_put(struct tcf_block *block)
 {
 }
+
+static inline int tcf_classify(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
@@ -92,47 +113,66 @@ static inline int tcf_exts_init(struct tcf_exts *exts, int action, int police)
 	return 0;
 }
 
+static inline void tcf_exts_to_list(const struct tcf_exts *exts,
+				    struct list_head *actions)
+{
+#ifdef CONFIG_NET_CLS_ACT
+	int i;
+
+	for (i = 0; i < exts->nr_actions; i++) {
+		struct tc_action *a = exts->actions[i];
+
+		list_add_tail(&a->list, actions);
+	}
+#endif
+}
+
+static inline void
+tcf_exts_stats_update(const struct tcf_exts *exts,
+		      u64 bytes, u64 packets, u64 lastuse)
+{
+#ifdef CONFIG_NET_CLS_ACT
+	int i;
+
+	preempt_disable();
+
+	for (i = 0; i < exts->nr_actions; i++) {
+		struct tc_action *a = exts->actions[i];
+
+		tcf_action_stats_update(a, bytes, packets, lastuse);
+	}
+
+	preempt_enable();
+#endif
+}
+
 /**
- * tcf_exts_is_predicative - check if a predicative extension is present
+ * tcf_exts_has_actions - check if at least one action is present
  * @exts: tc filter extensions handle
  *
- * Returns 1 if a predicative extension is present, i.e. an extension which
- * might cause further actions and thus overrule the regular tcf_result.
+ * Returns true if at least one action is present.
  */
-static inline int
-tcf_exts_is_predicative(struct tcf_exts *exts)
+static inline bool tcf_exts_has_actions(struct tcf_exts *exts)
 {
 #ifdef CONFIG_NET_CLS_ACT
 	return exts->nr_actions;
 #else
-	return 0;
+	return false;
 #endif
 }
 
 /**
- * tcf_exts_is_available - check if at least one extension is present
+ * tcf_exts_has_one_action - check if exactly one action is present
  * @exts: tc filter extensions handle
  *
- * Returns 1 if at least one extension is present.
+ * Returns true if exactly one action is present.
  */
-static inline int
-tcf_exts_is_available(struct tcf_exts *exts)
-{
-	/* All non-predicative extensions must be added here. */
-	return tcf_exts_is_predicative(exts);
-}
-
-static inline void tcf_exts_to_list(const struct tcf_exts *exts,
-				    struct list_head *actions)
+static inline bool tcf_exts_has_one_action(struct tcf_exts *exts)
 {
 #ifdef CONFIG_NET_CLS_ACT
-	int i;
-
-	for (i = 0; i < exts->nr_actions; i++) {
-		struct tc_action *a = exts->actions[i];
-
-		list_add_tail(&a->list, actions);
-	}
+	return exts->nr_actions == 1;
+#else
+	return false;
 #endif
 }
 
@@ -142,41 +182,26 @@ static inline void tcf_exts_to_list(const struct tcf_exts *exts,
  * @exts: tc filter extensions handle
  * @res: desired result
  *
- * Executes all configured extensions. Returns 0 on a normal execution,
+ * Executes all configured extensions. Returns TC_ACT_OK on a normal execution,
  * a negative number if the filter must be considered unmatched or
  * a positive action code (TC_ACT_*) which must be returned to the
  * underlying layer.
  */
 static inline int
 tcf_exts_exec(struct sk_buff *skb, struct tcf_exts *exts,
-	       struct tcf_result *res)
+	      struct tcf_result *res)
 {
 #ifdef CONFIG_NET_CLS_ACT
-	if (exts->nr_actions)
-		return tcf_action_exec(skb, exts->actions, exts->nr_actions,
-				       res);
+	return tcf_action_exec(skb, exts->actions, exts->nr_actions, res);
 #endif
-	return 0;
+	return TC_ACT_OK;
 }
 
-#ifdef CONFIG_NET_CLS_ACT
-
-#define tc_no_actions(_exts)  ((_exts)->nr_actions == 0)
-#define tc_single_action(_exts) ((_exts)->nr_actions == 1)
-
-#else /* CONFIG_NET_CLS_ACT */
-
-#define tc_no_actions(_exts) true
-#define tc_single_action(_exts) false
-
-#endif /* CONFIG_NET_CLS_ACT */
-
 int tcf_exts_validate(struct net *net, struct tcf_proto *tp,
 		      struct nlattr **tb, struct nlattr *rate_tlv,
 		      struct tcf_exts *exts, bool ovr);
 void tcf_exts_destroy(struct tcf_exts *exts);
-void tcf_exts_change(struct tcf_proto *tp, struct tcf_exts *dst,
-		     struct tcf_exts *src);
+void tcf_exts_change(struct tcf_exts *dst, struct tcf_exts *src);
 int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts);
 int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts);
 int tcf_exts_get_dev(struct net_device *dev, struct tcf_exts *exts,
@@ -293,26 +318,6 @@ int __tcf_em_tree_match(struct sk_buff *, struct tcf_ematch_tree *,
 			struct tcf_pkt_info *);
 
 /**
- * tcf_em_tree_change - replace ematch tree of a running classifier
- *
- * @tp: classifier kind handle
- * @dst: destination ematch tree variable
- * @src: source ematch tree (temporary tree from tcf_em_tree_validate)
- *
- * This functions replaces the ematch tree in @dst with the ematch
- * tree in @src. The classifier in charge of the ematch tree may be
- * running.
- */
-static inline void tcf_em_tree_change(struct tcf_proto *tp,
-				      struct tcf_ematch_tree *dst,
-				      struct tcf_ematch_tree *src)
-{
-	tcf_tree_lock(tp);
-	memcpy(dst, src, sizeof(*dst));
-	tcf_tree_unlock(tp);
-}
-
-/**
  * tcf_em_tree_match - evaulate an ematch tree
  *
  * @skb: socket buffer of the packet in question
@@ -346,7 +351,6 @@ struct tcf_ematch_tree {
 #define tcf_em_tree_validate(tp, tb, t) ((void)(t), 0)
 #define tcf_em_tree_destroy(t) do { (void)(t); } while(0)
 #define tcf_em_tree_dump(skb, t, tlv) (0)
-#define tcf_em_tree_change(tp, dst, src) do { } while(0)
 #define tcf_em_tree_match(skb, t, info) ((void)(info), 1)
 
 #endif /* CONFIG_NET_EMATCH */
@@ -401,6 +405,23 @@ tcf_match_indev(struct sk_buff *skb, int ifindex)
 }
 #endif /* CONFIG_NET_CLS_IND */
 
+struct tc_cls_common_offload {
+	u32 chain_index;
+	__be16 protocol;
+	u32 prio;
+	u32 classid;
+};
+
+static inline void
+tc_cls_common_offload_init(struct tc_cls_common_offload *cls_common,
+			   const struct tcf_proto *tp)
+{
+	cls_common->chain_index = tp->chain->index;
+	cls_common->protocol = tp->protocol;
+	cls_common->prio = tp->prio;
+	cls_common->classid = tp->classid;
+}
+
 struct tc_cls_u32_knode {
 	struct tcf_exts *exts;
 	struct tc_u32_sel *sel;
@@ -427,6 +448,7 @@ enum tc_clsu32_command {
 };
 
 struct tc_cls_u32_offload {
+	struct tc_cls_common_offload common;
 	/* knode values */
 	enum tc_clsu32_command command;
 	union {
@@ -435,19 +457,12 @@ struct tc_cls_u32_offload {
 	};
 };
 
-static inline bool tc_can_offload(const struct net_device *dev,
-				  const struct tcf_proto *tp)
+static inline bool tc_can_offload(const struct net_device *dev)
 {
-	const struct Qdisc *sch = tp->q;
-	const struct Qdisc_class_ops *cops = sch->ops->cl_ops;
-
 	if (!(dev->features & NETIF_F_HW_TC))
 		return false;
 	if (!dev->netdev_ops->ndo_setup_tc)
 		return false;
-	if (cops && cops->tcf_cl_offload)
-		return cops->tcf_cl_offload(tp->classid);
-
 	return true;
 }
 
@@ -456,12 +471,11 @@ static inline bool tc_skip_hw(u32 flags)
 	return (flags & TCA_CLS_FLAGS_SKIP_HW) ? true : false;
 }
 
-static inline bool tc_should_offload(const struct net_device *dev,
-				     const struct tcf_proto *tp, u32 flags)
+static inline bool tc_should_offload(const struct net_device *dev, u32 flags)
 {
 	if (tc_skip_hw(flags))
 		return false;
-	return tc_can_offload(dev, tp);
+	return tc_can_offload(dev);
 }
 
 static inline bool tc_skip_sw(u32 flags)
@@ -493,13 +507,14 @@ enum tc_fl_command {
 };
 
 struct tc_cls_flower_offload {
+	struct tc_cls_common_offload common;
 	enum tc_fl_command command;
-	u32 prio;
 	unsigned long cookie;
 	struct flow_dissector *dissector;
 	struct fl_flow_key *mask;
 	struct fl_flow_key *key;
 	struct tcf_exts *exts;
+	bool egress_dev;
 };
 
 enum tc_matchall_command {
@@ -508,6 +523,7 @@ enum tc_matchall_command {
 };
 
 struct tc_cls_matchall_offload {
+	struct tc_cls_common_offload common;
 	enum tc_matchall_command command;
 	struct tcf_exts *exts;
 	unsigned long cookie;
@@ -521,6 +537,7 @@ enum tc_clsbpf_command {
 };
 
 struct tc_cls_bpf_offload {
+	struct tc_cls_common_offload common;
 	enum tc_clsbpf_command command;
 	struct tcf_exts *exts;
 	struct bpf_prog *prog;