X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=datapath%2Fdatapath.h;h=38c84756f04a64b8bcc95b167428f9afb629ad6c;hb=bf2ca90814210678ae4036add586b2d0549f837f;hp=6732b59ea172bffaa4d2123d9fe6659a842bd433;hpb=c69ee87c10818267f991236201150b1fa51ae519;p=openvswitch

diff --git a/datapath/datapath.h b/datapath/datapath.h
index 6732b59e..38c84756 100644
--- a/datapath/datapath.h
+++ b/datapath/datapath.h
@@ -182,6 +182,23 @@ struct net_bridge_port {
 	atomic_t sflow_pool;
 };
 
+enum csum_type {
+	OVS_CSUM_NONE = 0,
+	OVS_CSUM_UNNECESSARY = 1,
+	OVS_CSUM_COMPLETE = 2,
+	OVS_CSUM_PARTIAL = 3,
+};
+
+/**
+ * struct ovs_skb_cb - OVS data in skb CB
+ * @ip_summed: Consistently stores L4 checksumming status across different
+ * kernel versions.
+ */
+struct ovs_skb_cb {
+	enum csum_type	ip_summed;
+};
+#define OVS_CB(skb) ((struct ovs_skb_cb *)(skb)->cb)
+
 extern struct notifier_block dp_device_notifier;
 extern int (*dp_ioctl_hook)(struct net_device *dev, struct ifreq *rq, int cmd);
 
@@ -219,6 +236,7 @@ static inline int vswitch_skb_checksum_setup(struct sk_buff *skb)
 }
 #endif
 
+void compute_ip_summed(struct sk_buff *skb, bool xmit);
 void forward_ip_summed(struct sk_buff *skb);
 
 #endif /* datapath.h */