Catalli's threaded switch

[sliver-openvswitch.git] / datapath / actions.h

diff --git a/datapath/actions.h b/datapath/actions.h
index 410e3ba..da4f4bf 100644 (file)
--- a/datapath/actions.h
+++ b/datapath/actions.h
@@ -1,18 +1,44 @@
+/*
+ * Copyright (c) 2009, 2010 Nicira Networks.
+ * Distributed under the terms of the GNU GPL version 2.
+ *
+ * Significant portions of this file may be copied from parts of the Linux
+ * kernel, by Linus Torvalds and others.
+ */
+
 #ifndef ACTIONS_H
 #define ACTIONS_H 1
 
 #include <linux/gfp.h>
+#include <linux/skbuff.h>
+#include <linux/version.h>
 
 struct datapath;
 struct sk_buff;
 struct odp_flow_key;
 union odp_action;
 
-struct sk_buff *make_writable(struct sk_buff *, gfp_t gfp);
-int dp_xmit_skb(struct sk_buff *);
 int execute_actions(struct datapath *dp, struct sk_buff *skb,
-                   struct odp_flow_key *key,
+                   const struct odp_flow_key *key,
                    const union odp_action *, int n_actions,
                    gfp_t gfp);
 
+static inline void set_skb_csum_bits(const struct sk_buff *old_skb,
+                                    struct sk_buff *new_skb)
+{
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
+       /* Before 2.6.24 these fields were not copied when
+        * doing an skb_copy_expand. */
+       new_skb->ip_summed = old_skb->ip_summed;
+       new_skb->csum = old_skb->csum;
+#endif
+#if defined(CONFIG_XEN) && defined(HAVE_PROTO_DATA_VALID)
+       /* These fields are copied in skb_clone but not in
+        * skb_copy or related functions.  We need to manually
+        * copy them over here. */
+       new_skb->proto_data_valid = old_skb->proto_data_valid;
+       new_skb->proto_csum_blank = old_skb->proto_csum_blank;
+#endif
+}
+
 #endif /* actions.h */