1 /* Interface exported by openvswitch_mod. */
7 #include <linux/kernel.h>
8 #include <linux/mutex.h>
9 #include <linux/netlink.h>
10 #include <linux/netdevice.h>
11 #include <linux/workqueue.h>
12 #include <linux/skbuff.h>
13 #include <linux/version.h>
15 #include "brc_sysfs.h"
19 /* Mask for the priority bits in a vlan header. If we ever merge upstream
20 * then this should go into include/linux/if_vlan.h. */
21 #define VLAN_PCP_MASK 0xe000
23 #define DP_MAX_PORTS 256
24 #define DP_MAX_GROUPS 16
26 #define DP_L2_BITS (PAGE_SHIFT - ilog2(sizeof(struct sw_flow*)))
27 #define DP_L2_SIZE (1 << DP_L2_BITS)
30 #define DP_L1_BITS (PAGE_SHIFT - ilog2(sizeof(struct sw_flow**)))
31 #define DP_L1_SIZE (1 << DP_L1_BITS)
32 #define DP_L1_SHIFT DP_L2_BITS
34 #define DP_MAX_BUCKETS (DP_L1_SIZE * DP_L2_SIZE)
37 unsigned int n_buckets;
38 struct sw_flow ***flows[2];
43 #define DP_MAX_QUEUE_LEN 100
45 struct dp_stats_percpu {
52 struct dp_port_group {
63 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)
66 struct kobject *ifobj;
73 struct sk_buff_head queues[DP_N_QUEUES];
74 wait_queue_head_t waitqueue;
78 struct dp_table *table;
81 struct dp_port_group *groups[DP_MAX_GROUPS];
85 struct net_bridge_port *ports[DP_MAX_PORTS];
86 struct list_head port_list; /* All ports, including local_port. */
89 struct dp_stats_percpu *stats_percpu;
92 struct net_bridge_port {
95 struct net_device *dev;
99 struct list_head node; /* Element in datapath.ports. */
102 extern struct notifier_block dp_device_notifier;
103 extern int (*dp_ioctl_hook)(struct net_device *dev, struct ifreq *rq, int cmd);
104 extern int (*dp_add_dp_hook)(struct datapath *dp);
105 extern int (*dp_del_dp_hook)(struct datapath *dp);
106 extern int (*dp_add_if_hook)(struct net_bridge_port *p);
107 extern int (*dp_del_if_hook)(struct net_bridge_port *p);
110 struct dp_table *dp_table_create(unsigned int n_buckets);
111 void dp_table_destroy(struct dp_table *, int free_flows);
112 struct sw_flow *dp_table_lookup(struct dp_table *, const struct odp_flow_key *);
113 struct sw_flow **dp_table_lookup_for_insert(struct dp_table *, const struct odp_flow_key *);
114 int dp_table_delete(struct dp_table *, struct sw_flow *);
115 int dp_table_expand(struct datapath *);
116 int dp_table_flush(struct datapath *);
117 int dp_table_foreach(struct dp_table *table,
118 int (*callback)(struct sw_flow *flow, void *aux),
121 void dp_process_received_packet(struct sk_buff *, struct net_bridge_port *);
122 int dp_del_port(struct net_bridge_port *, struct list_head *);
123 int dp_output_port(struct datapath *, struct sk_buff *, int out_port,
125 int dp_output_control(struct datapath *, struct sk_buff *, int, u32 arg);
126 void dp_set_origin(struct datapath *, u16, struct sk_buff *);
128 struct datapath *get_dp(int dp_idx);
130 static inline const char *dp_name(const struct datapath *dp)
132 return dp->ports[ODPP_LOCAL]->dev->name;
136 int skb_checksum_setup(struct sk_buff *skb);
138 static inline int skb_checksum_setup(struct sk_buff *skb)
144 #endif /* datapath.h */