X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=datapath%2Fvport.h;h=b98c461ed3e9a0cd3de48bcf8742f58e99989d08;hb=3d785a24216d946fcce1c351e5d978043e14cbe2;hp=641353cd40f18dbdea697707e61d1d325c2ace5f;hpb=6d1d631e10b24d9528a4c436805205efcbefd983;p=openvswitch

diff --git a/datapath/vport.h b/datapath/vport.h
index 641353cd..b98c461e 100644
--- a/datapath/vport.h
+++ b/datapath/vport.h
@@ -19,18 +19,11 @@
 #include "odp-compat.h"
 
 struct vport;
-struct dp_port;
+struct vport_parms;
 
 /* The following definitions are for users of the vport subsytem: */
 
-int vport_user_add(const struct odp_vport_add __user *);
-int vport_user_mod(const struct odp_vport_mod __user *);
-int vport_user_del(const char __user *udevname);
-
-#ifdef CONFIG_COMPAT
-int compat_vport_user_add(struct compat_odp_vport_add __user *);
-int compat_vport_user_mod(struct compat_odp_vport_mod __user *);
-#endif
+int vport_user_mod(const struct odp_port __user *);
 
 int vport_user_stats_get(struct odp_vport_stats_req __user *);
 int vport_user_stats_set(struct odp_vport_stats_req __user *);
@@ -45,15 +38,12 @@ void vport_unlock(void);
 int vport_init(void);
 void vport_exit(void);
 
-struct vport *vport_add(const char *name, const char *type, const void __user *config);
-int vport_mod(struct vport *, const void __user *config);
+struct vport *vport_add(const struct vport_parms *);
+int vport_mod(struct vport *, struct odp_port *);
 int vport_del(struct vport *);
 
 struct vport *vport_locate(const char *name);
 
-int vport_attach(struct vport *, struct dp_port *);
-int vport_detach(struct vport *);
-
 int vport_set_mtu(struct vport *, int mtu);
 int vport_set_addr(struct vport *, const unsigned char *);
 int vport_set_stats(struct vport *, struct rtnl_link_stats64 *);
@@ -62,7 +52,6 @@ const char *vport_get_name(const struct vport *);
 const char *vport_get_type(const struct vport *);
 const unsigned char *vport_get_addr(const struct vport *);
 
-struct dp_port *vport_get_dp_port(const struct vport *);
 struct kobject *vport_get_kobj(const struct vport *);
 int vport_get_stats(struct vport *, struct rtnl_link_stats64 *);
 
@@ -94,10 +83,37 @@ struct vport_err_stats {
 	u64 tx_errors;
 };
 
+/**
+ * struct vport - one port within a datapath
+ * @port_no: Index into @dp's @ports array.
+ * @dp: Datapath to which this port belongs.
+ * @kobj: Represents /sys/class/net/<devname>/brport.
+ * @linkname: The name of the link from /sys/class/net/<datapath>/brif to this
+ * &struct vport.  (We keep this around so that we can delete it if the
+ * device gets renamed.)  Set to the null string when no link exists.
+ * @node: Element in @dp's @port_list.
+ * @sflow_pool: Number of packets that were candidates for sFlow sampling,
+ * regardless of whether they were actually chosen and sent down to userspace.
+ * @hash_node: Element in @dev_table hash table in vport.c.
+ * @ops: Class structure.
+ * @percpu_stats: Points to per-CPU statistics used and maintained by the vport
+ * code if %VPORT_F_GEN_STATS is set to 1 in @ops flags, otherwise unused.
+ * @stats_lock: Protects @err_stats and @offset_stats.
+ * @err_stats: Points to error statistics used and maintained by the vport code
+ * if %VPORT_F_GEN_STATS is set to 1 in @ops flags, otherwise unused.
+ * @offset_stats: Added to actual statistics as a sop to compatibility with
+ * XAPI for Citrix XenServer.  Deprecated.
+ */
 struct vport {
+	u16 port_no;
+	struct datapath	*dp;
+	struct kobject kobj;
+	char linkname[IFNAMSIZ];
+	struct list_head node;
+	atomic_t sflow_pool;
+
 	struct hlist_node hash_node;
 	const struct vport_ops *ops;
-	struct dp_port *dp_port;
 
 	struct vport_percpu_stats *percpu_stats;
 
@@ -111,6 +127,26 @@ struct vport {
 #define VPORT_F_FLOW		(1 << 2) /* Sets OVS_CB(skb)->flow. */
 #define VPORT_F_TUN_ID		(1 << 3) /* Sets OVS_CB(skb)->tun_id. */
 
+/**
+ * struct vport_parms - parameters for creating a new vport
+ *
+ * @name: New vport's name.
+ * @type: New vport's type.
+ * @config: Kernel copy of 'config' member of &struct odp_port describing
+ * configuration for new port.  Exactly %VPORT_CONFIG_SIZE bytes.
+ * @dp: New vport's datapath.
+ * @port_no: New vport's port number.
+ */
+struct vport_parms {
+	const char *name;
+	const char *type;
+	const void *config;
+
+	/* For vport_alloc(). */
+	struct datapath *dp;
+	u16 port_no;
+};
+
 /**
  * struct vport_ops - definition of a type of virtual port
  *
@@ -122,17 +158,11 @@ struct vport {
  * failure of this function will cause the module to not load.  If the flag is
  * not set and initialzation fails then no vports of this type can be created.
  * @exit: Called at module unload.
- * @create: Create a new vport called 'name' with vport type specific
- * configuration 'config' (which must be copied from userspace before use).  On
- * success must allocate a new vport using vport_alloc().
+ * @create: Create a new vport configured as specified.  On success returns
+ * a new vport allocated with vport_alloc(), otherwise an ERR_PTR() value.
  * @modify: Modify the configuration of an existing vport.  May be null if
  * modification is not supported.
- * @destroy: Destroy and free a vport using vport_free().  Prior to destruction
- * @detach will be called followed by synchronize_rcu().
- * @attach: Attach a previously created vport to a datapath.  After attachment
- * packets may be sent and received.  Prior to attachment any packets may be
- * silently discarded.  May be null if not needed.
- * @detach: Detach a vport from a datapath.  May be null if not needed.
+ * @destroy: Detach and destroy a vport.
  * @set_mtu: Set the device's MTU.  May be null if not supported.
  * @set_addr: Set the device's MAC address.  May be null if not supported.
  * @set_stats: Provides stats as an offset to be added to the device stats.
@@ -164,13 +194,10 @@ struct vport_ops {
 	void (*exit)(void);
 
 	/* Called with RTNL lock. */
-	struct vport *(*create)(const char *name, const void __user *config);
-	int (*modify)(struct vport *, const void __user *config);
+	struct vport *(*create)(const struct vport_parms *);
+	int (*modify)(struct vport *, struct odp_port *);
 	int (*destroy)(struct vport *);
 
-	int (*attach)(struct vport *);
-	int (*detach)(struct vport *);
-
 	int (*set_mtu)(struct vport *, int mtu);
 	int (*set_addr)(struct vport *, const unsigned char *);
 	int (*set_stats)(const struct vport *, struct rtnl_link_stats64 *);
@@ -200,7 +227,7 @@ enum vport_err_type {
 	VPORT_E_TX_ERROR,
 };
 
-struct vport *vport_alloc(int priv_size, const struct vport_ops *);
+struct vport *vport_alloc(int priv_size, const struct vport_ops *, const struct vport_parms *);
 void vport_free(struct vport *);
 
 #define VPORT_ALIGN 8
@@ -239,10 +266,10 @@ void vport_record_error(struct vport *, enum vport_err_type err_type);
 
 /* List of statically compiled vport implementations.  Don't forget to also
  * add yours to the list at the top of vport.c. */
-extern struct vport_ops netdev_vport_ops;
-extern struct vport_ops internal_vport_ops;
-extern struct vport_ops patch_vport_ops;
-extern struct vport_ops gre_vport_ops;
-extern struct vport_ops capwap_vport_ops;
+extern const struct vport_ops netdev_vport_ops;
+extern const struct vport_ops internal_vport_ops;
+extern const struct vport_ops patch_vport_ops;
+extern const struct vport_ops gre_vport_ops;
+extern const struct vport_ops capwap_vport_ops;
 
 #endif /* vport.h */