net: sched: introduce per-block callbacks
Introduce infrastructure that allows drivers to register callbacks that
are called whenever tc would offload inserted rule for a specific block.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 5c50af8..4bc6b1c 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -27,6 +27,8 @@
enum tcf_block_binder_type binder_type;
};
+struct tcf_block_cb;
+
#ifdef CONFIG_NET_CLS
struct tcf_chain *tcf_chain_get(struct tcf_block *block, u32 chain_index,
bool create);
@@ -51,6 +53,21 @@
return tcf_block_q(block)->dev_queue->dev;
}
+void *tcf_block_cb_priv(struct tcf_block_cb *block_cb);
+struct tcf_block_cb *tcf_block_cb_lookup(struct tcf_block *block,
+ tc_setup_cb_t *cb, void *cb_ident);
+void tcf_block_cb_incref(struct tcf_block_cb *block_cb);
+unsigned int tcf_block_cb_decref(struct tcf_block_cb *block_cb);
+struct tcf_block_cb *__tcf_block_cb_register(struct tcf_block *block,
+ tc_setup_cb_t *cb, void *cb_ident,
+ void *cb_priv);
+int tcf_block_cb_register(struct tcf_block *block,
+ tc_setup_cb_t *cb, void *cb_ident,
+ void *cb_priv);
+void __tcf_block_cb_unregister(struct tcf_block_cb *block_cb);
+void tcf_block_cb_unregister(struct tcf_block *block,
+ tc_setup_cb_t *cb, void *cb_ident);
+
int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp,
struct tcf_result *res, bool compat_mode);
@@ -91,6 +108,70 @@
return NULL;
}
+static inline
+int tc_setup_cb_block_register(struct tcf_block *block, tc_setup_cb_t *cb,
+ void *cb_priv)
+{
+ return 0;
+}
+
+static inline
+void tc_setup_cb_block_unregister(struct tcf_block *block, tc_setup_cb_t *cb,
+ void *cb_priv)
+{
+}
+
+static inline
+void *tcf_block_cb_priv(struct tcf_block_cb *block_cb)
+{
+ return NULL;
+}
+
+static inline
+struct tcf_block_cb *tcf_block_cb_lookup(struct tcf_block *block,
+ tc_setup_cb_t *cb, void *cb_ident)
+{
+ return NULL;
+}
+
+static inline
+void tcf_block_cb_incref(struct tcf_block_cb *block_cb)
+{
+}
+
+static inline
+unsigned int tcf_block_cb_decref(struct tcf_block_cb *block_cb)
+{
+ return 0;
+}
+
+static inline
+struct tcf_block_cb *__tcf_block_cb_register(struct tcf_block *block,
+ tc_setup_cb_t *cb, void *cb_ident,
+ void *cb_priv)
+{
+ return NULL;
+}
+
+static inline
+int tcf_block_cb_register(struct tcf_block *block,
+ tc_setup_cb_t *cb, void *cb_ident,
+ void *cb_priv)
+{
+ return 0;
+}
+
+static inline
+void __tcf_block_cb_unregister(struct tcf_block_cb *block_cb)
+{
+}
+
+static inline
+void tcf_block_cb_unregister(struct tcf_block *block,
+ tc_setup_cb_t *cb, void *cb_ident)
+{
+}
+
static inline int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp,
struct tcf_result *res, bool compat_mode)
{