datapath: Check packet len does not exceed attribute len.

[sliver-openvswitch.git] / datapath / vport.h

diff --git a/datapath/vport.h b/datapath/vport.h
index 56817e8..8e70762 100644 (file)
--- a/datapath/vport.h
+++ b/datapath/vport.h
@@ -16,16 +16,12 @@
 
 #include "datapath.h"
 #include "openvswitch/datapath-protocol.h"
-#include "odp-compat.h"
 
 struct vport;
 struct vport_parms;
 
 /* The following definitions are for users of the vport subsytem: */
 
-void vport_lock(void);
-void vport_unlock(void);
-
 int vport_init(void);
 void vport_exit(void);
 
@@ -78,6 +74,7 @@ struct vport_err_stats {
 
 /**
  * struct vport - one port within a datapath
+ * @rcu: RCU callback head for deferred destruction.
  * @port_no: Index into @dp's @ports array.
  * @dp: Datapath to which this port belongs.
  * @kobj: Represents /sys/class/net/<devname>/brport.
@@ -98,6 +95,7 @@ struct vport_err_stats {
  * XAPI for Citrix XenServer.  Deprecated.
  */
 struct vport {
+       struct rcu_head rcu;
        u16 port_no;
        struct datapath *dp;
        struct kobject kobj;
@@ -152,7 +150,8 @@ struct vport_parms {
  * @exit: Called at module unload.
  * @create: Create a new vport configured as specified.  On success returns
  * a new vport allocated with vport_alloc(), otherwise an ERR_PTR() value.
- * @destroy: Detach and destroy a vport.
+ * @destroy: Destroys a vport.  Must call vport_free() on the vport but not
+ * before an RCU grace period has elapsed.
  * @set_options: Modify the configuration of an existing vport.  May be %NULL
  * if modification is not supported.
  * @get_options: Appends vport-specific attributes for the configuration of an
@@ -176,7 +175,8 @@ struct vport_parms {
  * @get_iflink: Get the system interface index associated with the device that
  * will be used to send packets (may be different than ifindex for tunnels).
  * May be null if the device does not have an iflink.
- * @get_mtu: Get the device's MTU.
+ * @get_mtu: Get the device's MTU.  May be %NULL if the device does not have an
+ * MTU (as e.g. some tunnels do not).
  * @send: Send a packet on the device.  Returns the length of the packet sent.
  */
 struct vport_ops {