X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=datapath%2Fflow.h;h=b1e80057526489efde4af3496b70a7c435913f82;hb=ac387ef5ce7115f9539104011f0409eb6a1bbe99;hp=29a1ac47bcc76612b686b815079adbf1bfd5bafe;hpb=6bfafa55fbd78fba244bb9e62081781187a45932;p=openvswitch

diff --git a/datapath/flow.h b/datapath/flow.h
index 29a1ac47..b1e80057 100644
--- a/datapath/flow.h
+++ b/datapath/flow.h
@@ -13,7 +13,7 @@
 #include <linux/spinlock.h>
 #include <linux/types.h>
 #include <linux/rcupdate.h>
-#include <linux/gfp.h>
+#include <linux/if_ether.h>
 #include <linux/jiffies.h>
 #include <linux/time.h>
 
@@ -35,7 +35,8 @@ struct sw_flow {
 	struct odp_flow_key key;
 	struct sw_flow_actions *sf_acts;
 
-	u8 ip_tos;		/* IP TOS value. */
+	atomic_t refcnt;
+	bool dead;
 
 	spinlock_t lock;	/* Lock for values below. */
 	unsigned long used;	/* Last used time (in jiffies). */
@@ -44,20 +45,43 @@ struct sw_flow {
 	u8 tcp_flags;		/* Union of seen TCP flags. */
 };
 
-extern struct kmem_cache *flow_cache;
+struct arp_eth_header
+{
+	__be16      ar_hrd;	/* format of hardware address   */
+	__be16      ar_pro;	/* format of protocol address   */
+	unsigned char   ar_hln;	/* length of hardware address   */
+	unsigned char   ar_pln;	/* length of protocol address   */
+	__be16      ar_op;	/* ARP opcode (command)     */
 
-struct sw_flow_actions *flow_actions_alloc(size_t n_actions);
+	/* Ethernet+IPv4 specific members. */
+	unsigned char       ar_sha[ETH_ALEN];	/* sender hardware address  */
+	unsigned char       ar_sip[4];		/* sender IP address        */
+	unsigned char       ar_tha[ETH_ALEN];	/* target hardware address  */
+	unsigned char       ar_tip[4];		/* target IP address        */
+} __attribute__((packed));
+
+int flow_init(void);
+void flow_exit(void);
+
+struct sw_flow *flow_alloc(void);
 void flow_deferred_free(struct sw_flow *);
+void flow_free_tbl(struct tbl_node *);
+
+struct sw_flow_actions *flow_actions_alloc(size_t n_actions);
 void flow_deferred_free_acts(struct sw_flow_actions *);
-int flow_extract(struct sk_buff *, u16 in_port, struct odp_flow_key *);
+
+void flow_hold(struct sw_flow *);
+void flow_put(struct sw_flow *);
+
+int flow_extract(struct sk_buff *, u16 in_port, struct odp_flow_key *, bool *is_frag);
 void flow_used(struct sw_flow *, struct sk_buff *);
 
-struct sw_flow *flow_cast(const struct tbl_node *);
 u32 flow_hash(const struct odp_flow_key *key);
 int flow_cmp(const struct tbl_node *, void *target);
-void flow_free_tbl(struct tbl_node *);
 
-int flow_init(void);
-void flow_exit(void);
+static inline struct sw_flow *flow_cast(const struct tbl_node *node)
+{
+	return container_of(node, struct sw_flow, tbl_node);
+}
 
 #endif /* flow.h */