Merge tag 'backlight-next-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-microblaze.git] / net / openvswitch / datapath.h

diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h
index 38f7d3e..fcfe6cb 100644 (file)
--- a/net/openvswitch/datapath.h
+++ b/net/openvswitch/datapath.h
@@ -50,6 +50,21 @@ struct dp_stats_percpu {
        struct u64_stats_sync syncp;
 };
 
+/**
+ * struct dp_nlsk_pids - array of netlink portids of for a datapath.
+ *                       This is used when OVS_DP_F_DISPATCH_UPCALL_PER_CPU
+ *                       is enabled and must be protected by rcu.
+ * @rcu: RCU callback head for deferred destruction.
+ * @n_pids: Size of @pids array.
+ * @pids: Array storing the Netlink socket PIDs indexed by CPU ID for packets
+ *       that miss the flow table.
+ */
+struct dp_nlsk_pids {
+       struct rcu_head rcu;
+       u32 n_pids;
+       u32 pids[];
+};
+
 /**
  * struct datapath - datapath for flow-based packet switching
  * @rcu: RCU callback head for deferred destruction.
@@ -61,6 +76,7 @@ struct dp_stats_percpu {
  * @net: Reference to net namespace.
  * @max_headroom: the maximum headroom of all vports in this datapath; it will
  * be used by all the internal vports in this dp.
+ * @upcall_portids: RCU protected 'struct dp_nlsk_pids'.
  *
  * Context: See the comment on locking at the top of datapath.c for additional
  * locking information.
@@ -87,6 +103,8 @@ struct datapath {
 
        /* Switch meters. */
        struct dp_meter_table meter_tbl;
+
+       struct dp_nlsk_pids __rcu *upcall_portids;
 };
 
 /**
@@ -243,6 +261,8 @@ int ovs_dp_upcall(struct datapath *, struct sk_buff *,
                  const struct sw_flow_key *, const struct dp_upcall_info *,
                  uint32_t cutlen);
 
+u32 ovs_dp_get_upcall_portid(const struct datapath *dp, uint32_t cpu_id);
+
 const char *ovs_dp_name(const struct datapath *dp);
 struct sk_buff *ovs_vport_cmd_build_info(struct vport *vport, struct net *net,
                                         u32 portid, u32 seq, u8 cmd);