struct vport;
-/* Mask for the priority bits in a vlan header. If we ever merge upstream
- * then this should go into include/linux/if_vlan.h. */
-#define VLAN_PCP_MASK 0xe000
-#define VLAN_PCP_SHIFT 13
-
#define DP_MAX_PORTS 1024
+#define SAMPLE_ACTION_DEPTH 3
/**
* struct dp_stats_percpu - per-cpu packet processing statistics for a given
* datapath.
- * @n_frags: Number of IP fragments processed by datapath.
* @n_hit: Number of received packets for which a matching flow was found in
* the flow table.
* @n_miss: Number of received packets that had no matching flow in the flow
* one of the datapath's queues).
*/
struct dp_stats_percpu {
- u64 n_frags;
u64 n_hit;
u64 n_missed;
u64 n_lost;
/**
* struct datapath - datapath for flow-based packet switching
* @rcu: RCU callback head for deferred destruction.
- * @dp_ifindex: ifindex of local port.
* @list_node: Element in global 'dps' list.
* @ifobj: Represents /sys/class/net/<devname>/brif. Protected by RTNL.
- * @drop_frags: Drop all IP fragments if nonzero.
* @n_flows: Number of flows currently in flow table.
* @table: Current flow table. Protected by genl_lock and RCU.
* @ports: Map from port number to &struct vport. %OVSP_LOCAL port
* @port_list: List of all ports in @ports in arbitrary order. RTNL required
* to iterate or modify.
* @stats_percpu: Per-CPU datapath statistics.
- * @sflow_probability: Number of packets out of UINT_MAX to sample to the
- * %OVS_PACKET_CMD_SAMPLE multicast group, e.g. (@sflow_probability/UINT_MAX)
- * is the probability of sampling a given packet.
*
* Context: See the comment on locking at the top of datapath.c for additional
* locking information.
*/
struct datapath {
struct rcu_head rcu;
- int dp_ifindex;
struct list_head list_node;
struct kobject ifobj;
- int drop_frags;
-
/* Flow table. */
- struct tbl __rcu *table;
+ struct flow_table __rcu *table;
/* Switch ports. */
struct vport __rcu *ports[DP_MAX_PORTS];
/* Stats. */
struct dp_stats_percpu __percpu *stats_percpu;
-
- /* sFlow Sampling */
- unsigned int sflow_probability;
};
/**
* struct dp_upcall - metadata to include with a packet to send to userspace
* @cmd: One of %OVS_PACKET_CMD_*.
* @key: Becomes %OVS_PACKET_ATTR_KEY. Must be nonnull.
- * @userdata: Becomes %OVS_PACKET_ATTR_USERDATA if nonzero.
- * @sample_pool: Becomes %OVS_PACKET_ATTR_SAMPLE_POOL if nonzero.
- * @actions: Becomes %OVS_PACKET_ATTR_ACTIONS if nonnull.
- * @actions_len: Number of bytes in @actions.
-*/
+ * @userdata: If nonnull, its u64 value is extracted and passed to userspace as
+ * %OVS_PACKET_ATTR_USERDATA.
+ * @pid: Netlink PID to which packet should be sent. If @pid is 0 then no
+ * packet is sent and the packet is accounted in the datapath's @n_lost
+ * counter.
+ */
struct dp_upcall_info {
u8 cmd;
const struct sw_flow_key *key;
- u64 userdata;
- u32 sample_pool;
- const struct nlattr *actions;
- u32 actions_len;
+ const struct nlattr *userdata;
+ u32 pid;
};
extern struct notifier_block dp_device_notifier;
extern int (*dp_ioctl_hook)(struct net_device *dev, struct ifreq *rq, int cmd);
void dp_process_received_packet(struct vport *, struct sk_buff *);
-int dp_detach_port(struct vport *);
-int dp_upcall(struct datapath *, struct sk_buff *, const struct dp_upcall_info *);
-int dp_min_mtu(const struct datapath *dp);
-void set_internal_devs_mtu(const struct datapath *dp);
+void dp_detach_port(struct vport *);
+int dp_upcall(struct datapath *, struct sk_buff *,
+ const struct dp_upcall_info *);
struct datapath *get_dp(int dp_idx);
const char *dp_name(const struct datapath *dp);