datapath: Add support for lwtunnel

[cascardo/ovs.git] / datapath / vport.h

diff --git a/datapath/vport.h b/datapath/vport.h
index b217b88..d820719 100644 (file)
--- a/datapath/vport.h
+++ b/datapath/vport.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007-2012 Nicira, Inc.
+ * Copyright (c) 2007-2015 Nicira, Inc.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of version 2 of the GNU General Public
@@ -27,14 +27,14 @@
 #include <linux/skbuff.h>
 #include <linux/spinlock.h>
 #include <linux/u64_stats_sync.h>
+#include <net/route.h>
+
+#include "datapath.h"
 
 struct vport;
 struct vport_parms;
 
 /* The following definitions are for users of the vport subsytem: */
-struct vport_net {
-       struct vport __rcu *gre_vport;
-};
 
 int ovs_vport_init(void);
 void ovs_vport_exit(void);
@@ -53,25 +53,15 @@ int ovs_vport_set_upcall_portids(struct vport *, const struct nlattr *pids);
 int ovs_vport_get_upcall_portids(const struct vport *, struct sk_buff *);
 u32 ovs_vport_find_upcall_portid(const struct vport *, struct sk_buff *);
 
-int ovs_vport_send(struct vport *, struct sk_buff *);
-
-int ovs_tunnel_get_egress_info(struct ovs_tunnel_info *egress_tun_info,
+int ovs_tunnel_get_egress_info(struct dp_upcall_info *upcall,
                               struct net *net,
-                              const struct ovs_tunnel_info *tun_info,
+                              struct sk_buff *,
                               u8 ipproto,
-                              u32 skb_mark,
                               __be16 tp_src,
                               __be16 tp_dst);
+
 int ovs_vport_get_egress_tun_info(struct vport *vport, struct sk_buff *skb,
-                                 struct ovs_tunnel_info *info);
-
-/* The following definitions are for implementers of vport devices: */
-struct vport_err_stats {
-       atomic_long_t rx_dropped;
-       atomic_long_t rx_errors;
-       atomic_long_t tx_dropped;
-       atomic_long_t tx_errors;
-};
+                                 struct dp_upcall_info *upcall);
 
 /**
  * struct vport_portids - array of netlink portids of a vport.
@@ -98,12 +88,10 @@ struct vport_portids {
  * @hash_node: Element in @dev_table hash table in vport.c.
  * @dp_hash_node: Element in @datapath->ports hash table in datapath.c.
  * @ops: Class structure.
- * @percpu_stats: Points to per-CPU statistics used and maintained by vport
- * @err_stats: Points to error statistics used and maintained by vport
  * @detach_list: list used for detaching vport in net-exit call.
  */
 struct vport {
-       struct rcu_head rcu;
+       struct net_device *dev;
        struct datapath *dp;
        struct vport_portids __rcu *upcall_portids;
        u16 port_no;
@@ -112,10 +100,8 @@ struct vport {
        struct hlist_node dp_hash_node;
        const struct vport_ops *ops;
 
-       struct pcpu_sw_netstats __percpu *percpu_stats;
-
-       struct vport_err_stats err_stats;
        struct list_head detach_list;
+       struct rcu_head rcu;
 };
 
 /**
@@ -152,8 +138,7 @@ struct vport_parms {
  * @get_options: Appends vport-specific attributes for the configuration of an
  * existing vport to a &struct sk_buff.  May be %NULL for a vport that does not
  * have any configuration.
- * @get_name: Get the device's name.
- * @send: Send a packet on the device.  Returns the length of the packet sent,
+ * @send: Send a packet on the device.
  * zero for dropped packets or negative for error.
  * @get_egress_tun_info: Get the egress tunnel 5-tuple and other info for
  * a packet.
@@ -168,24 +153,14 @@ struct vport_ops {
        int (*set_options)(struct vport *, struct nlattr *);
        int (*get_options)(const struct vport *, struct sk_buff *);
 
-       /* Called with rcu_read_lock or ovs_mutex. */
-       const char *(*get_name)(const struct vport *);
-
-       int (*send)(struct vport *, struct sk_buff *);
        int (*get_egress_tun_info)(struct vport *, struct sk_buff *,
-                                  struct ovs_tunnel_info *);
+                                  struct dp_upcall_info *upcall);
+       netdev_tx_t (*send)(struct sk_buff *skb);
 
        struct module *owner;
        struct list_head list;
 };
 
-enum vport_err_type {
-       VPORT_E_RX_DROPPED,
-       VPORT_E_RX_ERROR,
-       VPORT_E_TX_DROPPED,
-       VPORT_E_TX_ERROR,
-};
-
 struct vport *ovs_vport_alloc(int priv_size, const struct vport_ops *,
                              const struct vport_parms *);
 void ovs_vport_free(struct vport *);
@@ -222,8 +197,8 @@ static inline struct vport *vport_from_priv(void *priv)
        return (struct vport *)((u8 *)priv - ALIGN(sizeof(struct vport), VPORT_ALIGN));
 }
 
-void ovs_vport_receive(struct vport *, struct sk_buff *,
-                      const struct ovs_tunnel_info *);
+int ovs_vport_receive(struct vport *, struct sk_buff *,
+                     const struct ip_tunnel_info *);
 
 static inline void ovs_skb_postpush_rcsum(struct sk_buff *skb,
                                      const void *start, unsigned int len)
@@ -232,6 +207,32 @@ static inline void ovs_skb_postpush_rcsum(struct sk_buff *skb,
                skb->csum = csum_add(skb->csum, csum_partial(start, len, 0));
 }
 
+static inline const char *ovs_vport_name(struct vport *vport)
+{
+       return vport->dev->name;
+}
+
 int ovs_vport_ops_register(struct vport_ops *ops);
 void ovs_vport_ops_unregister(struct vport_ops *ops);
+
+static inline struct rtable *ovs_tunnel_route_lookup(struct net *net,
+                                                    const struct ip_tunnel_key *key,
+                                                    u32 mark,
+                                                    struct flowi4 *fl,
+                                                    u8 protocol)
+{
+       struct rtable *rt;
+
+       memset(fl, 0, sizeof(*fl));
+       fl->daddr = key->u.ipv4.dst;
+       fl->saddr = key->u.ipv4.src;
+       fl->flowi4_tos = RT_TOS(key->tos);
+       fl->flowi4_mark = mark;
+       fl->flowi4_proto = protocol;
+
+       rt = ip_route_output_key(net, fl);
+       return rt;
+}
+
+void ovs_vport_send(struct vport *vport, struct sk_buff *skb);
 #endif /* vport.h */