/* 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 DP_MAX_GROUPS 16
struct sw_flow *flows[];
};
-#define DP_N_QUEUES 2
+#define DP_N_QUEUES 3
#define DP_MAX_QUEUE_LEN 100
struct dp_stats_percpu {
u64 n_hit;
u64 n_missed;
u64 n_lost;
+ u64 sflow_pool; /* Packets that could have been sampled. */
};
struct dp_port_group {
u16 ports[];
};
+/**
+ * struct datapath - datapath for flow-based packet switching
+ * @mutex: Mutual exclusion for ioctls.
+ * @dp_idx: Datapath number (index into the dps[] array in datapath.c).
+ * @ifobj: &struct kobject representing the datapath.
+ * @drop_frags: Drop all IP fragments if nonzero.
+ * @queues: %DP_N_QUEUES sets of queued packets for userspace to handle.
+ * @waitqueue: Waitqueue, for waiting for new packets in @queues.
+ * @n_flows: Number of flows currently in flow table.
+ * @table: Current flow table (RCU protected).
+ * @groups: Port groups, used by ODPAT_OUTPUT_GROUP action (RCU protected).
+ * @n_ports: Number of ports currently in @ports.
+ * @ports: Map from port number to &struct net_bridge_port. %ODPP_LOCAL port
+ * always exists, other ports may be %NULL.
+ * @port_list: List of all ports in @ports in arbitrary order.
+ * @stats_percpu: Per-CPU datapath statistics.
+ * @sflow_probability: Probability of sampling a packet to the %ODPL_SFLOW
+ * queue, where 0 means never sample, UINT_MAX means always sample, and
+ * other values are intermediate probabilities.
+ */
struct datapath {
struct mutex mutex;
int dp_idx;
-
struct kobject ifobj;
int drop_frags;
/* Switch ports. */
unsigned int n_ports;
struct net_bridge_port *ports[DP_MAX_PORTS];
- struct list_head port_list; /* All ports, including local_port. */
+ struct list_head port_list;
/* Stats. */
struct dp_stats_percpu *stats_percpu;
+
+ /* sFlow Sampling */
+ unsigned int sflow_probability;
};
struct net_bridge_port {