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Diffstat (limited to 'include/net/pkt_cls.h')
-rw-r--r--include/net/pkt_cls.h145
1 files changed, 61 insertions, 84 deletions
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 537d0a0ad4c4..e80edd8879ef 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -11,7 +11,7 @@ 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);
@@ -113,36 +113,6 @@ static inline int tcf_exts_init(struct tcf_exts *exts, int action, int police)
return 0;
}
-/**
- * tcf_exts_is_predicative - check if a predicative extension 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.
- */
-static inline int
-tcf_exts_is_predicative(struct tcf_exts *exts)
-{
-#ifdef CONFIG_NET_CLS_ACT
- return exts->nr_actions;
-#else
- return 0;
-#endif
-}
-
-/**
- * tcf_exts_is_available - check if at least one extension is present
- * @exts: tc filter extensions handle
- *
- * Returns 1 if at least one extension 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)
{
@@ -177,46 +147,61 @@ tcf_exts_stats_update(const struct tcf_exts *exts,
}
/**
+ * tcf_exts_has_actions - check if at least one action is present
+ * @exts: tc filter extensions handle
+ *
+ * Returns true if at least one action is present.
+ */
+static inline bool tcf_exts_has_actions(struct tcf_exts *exts)
+{
+#ifdef CONFIG_NET_CLS_ACT
+ return exts->nr_actions;
+#else
+ return false;
+#endif
+}
+
+/**
+ * tcf_exts_has_one_action - check if exactly one action is present
+ * @exts: tc filter extensions handle
+ *
+ * Returns true if exactly one action is present.
+ */
+static inline bool tcf_exts_has_one_action(struct tcf_exts *exts)
+{
+#ifdef CONFIG_NET_CLS_ACT
+ return exts->nr_actions == 1;
+#else
+ return false;
+#endif
+}
+
+/**
* tcf_exts_exec - execute tc filter extensions
* @skb: socket buffer
* @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,
@@ -333,26 +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
@@ -386,7 +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 */
@@ -441,6 +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;
@@ -467,6 +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 {
@@ -475,19 +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;
}
@@ -496,12 +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)
@@ -533,13 +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 {
@@ -548,6 +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;
@@ -561,6 +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;