ovs-controller: Add ability to define default flows

[openvswitch] / datapath / vport-netdev.c

diff --git a/datapath/vport-netdev.c b/datapath/vport-netdev.c
index 50c51ac097c55616d1279356224d13002ffdacb6..f172ac4edf0ba89cecd1ae2d00ac27da66f25951 100644 (file)
--- a/datapath/vport-netdev.c
+++ b/datapath/vport-netdev.c
@@ -22,7 +22,8 @@
 
 #include "compat.h"
 
-struct vport_ops netdev_vport_ops;
+/* If the native device stats aren't 64 bit use the vport stats tracking instead. */
+#define USE_VPORT_STATS (sizeof(((struct net_device_stats *)0)->rx_bytes) < sizeof(u64))
 
 static void netdev_port_receive(struct net_bridge_port *, struct sk_buff *);
 
@@ -32,16 +33,15 @@ static void netdev_port_receive(struct net_bridge_port *, struct sk_buff *);
  */
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
 /* Called with rcu_read_lock and bottom-halves disabled. */
-static struct sk_buff *
-netdev_frame_hook(struct net_bridge_port *p, struct sk_buff *skb)
+static struct sk_buff *netdev_frame_hook(struct net_bridge_port *p,
+                                        struct sk_buff *skb)
 {
        netdev_port_receive(p, skb);
        return NULL;
 }
 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
 /* Called with rcu_read_lock and bottom-halves disabled. */
-static int
-netdev_frame_hook(struct net_bridge_port *p, struct sk_buff **pskb)
+static int netdev_frame_hook(struct net_bridge_port *p, struct sk_buff **pskb)
 {
        netdev_port_receive(p, *pskb);
        return 1;
@@ -50,8 +50,7 @@ netdev_frame_hook(struct net_bridge_port *p, struct sk_buff **pskb)
 #error
 #endif
 
-static int
-netdev_init(void)
+static int netdev_init(void)
 {
        /* Hook into callback used by the bridge to intercept packets.
         * Parasites we are. */
@@ -60,14 +59,12 @@ netdev_init(void)
        return 0;
 }
 
-static void
-netdev_exit(void)
+static void netdev_exit(void)
 {
        br_handle_frame_hook = NULL;
 }
 
-static struct vport *
-netdev_create(const char *name, const void __user *config)
+static struct vport *netdev_create(const char *name, const void __user *config)
 {
        struct vport *vport;
        struct netdev_vport *netdev_vport;
@@ -99,6 +96,16 @@ netdev_create(const char *name, const void __user *config)
                goto error_put;
        }
 
+       /* If we are using the vport stats layer initialize it to the current
+        * values so we are roughly consistent with the device stats. */
+       if (USE_VPORT_STATS) {
+               struct odp_vport_stats stats;
+
+               err = netdev_get_stats(vport, &stats);
+               if (!err)
+                       vport_set_stats(vport, &stats);
+       }
+
        return vport;
 
 error_put:
@@ -109,8 +116,7 @@ error:
        return ERR_PTR(err);
 }
 
-static int
-netdev_destroy(struct vport *vport)
+static int netdev_destroy(struct vport *vport)
 {
        struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
 
@@ -120,8 +126,7 @@ netdev_destroy(struct vport *vport)
        return 0;
 }
 
-static int
-netdev_attach(struct vport *vport)
+static int netdev_attach(struct vport *vport)
 {
        struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
 
@@ -132,8 +137,7 @@ netdev_attach(struct vport *vport)
        return 0;
 }
 
-static int
-netdev_detach(struct vport *vport)
+static int netdev_detach(struct vport *vport)
 {
        struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
 
@@ -143,15 +147,13 @@ netdev_detach(struct vport *vport)
        return 0;
 }
 
-int
-netdev_set_mtu(struct vport *vport, int mtu)
+int netdev_set_mtu(struct vport *vport, int mtu)
 {
        struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
        return dev_set_mtu(netdev_vport->dev, mtu);
 }
 
-int
-netdev_set_addr(struct vport *vport, const unsigned char *addr)
+int netdev_set_addr(struct vport *vport, const unsigned char *addr)
 {
        struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
        struct sockaddr sa;
@@ -162,29 +164,25 @@ netdev_set_addr(struct vport *vport, const unsigned char *addr)
        return dev_set_mac_address(netdev_vport->dev, &sa);
 }
 
-const char *
-netdev_get_name(const struct vport *vport)
+const char *netdev_get_name(const struct vport *vport)
 {
        const struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
        return netdev_vport->dev->name;
 }
 
-const unsigned char *
-netdev_get_addr(const struct vport *vport)
+const unsigned char *netdev_get_addr(const struct vport *vport)
 {
        const struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
        return netdev_vport->dev->dev_addr;
 }
 
-struct kobject *
-netdev_get_kobj(const struct vport *vport)
+struct kobject *netdev_get_kobj(const struct vport *vport)
 {
        const struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
        return &netdev_vport->dev->NETDEV_DEV_MEMBER.kobj;
 }
 
-int
-netdev_get_stats(const struct vport *vport, struct odp_vport_stats *stats)
+int netdev_get_stats(const struct vport *vport, struct odp_vport_stats *stats)
 {
        const struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
        const struct net_device_stats *netdev_stats;
@@ -207,51 +205,44 @@ netdev_get_stats(const struct vport *vport, struct odp_vport_stats *stats)
        return 0;
 }
 
-unsigned
-netdev_get_dev_flags(const struct vport *vport)
+unsigned netdev_get_dev_flags(const struct vport *vport)
 {
        const struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
        return dev_get_flags(netdev_vport->dev);
 }
 
-int
-netdev_is_running(const struct vport *vport)
+int netdev_is_running(const struct vport *vport)
 {
        const struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
        return netif_running(netdev_vport->dev);
 }
 
-unsigned char
-netdev_get_operstate(const struct vport *vport)
+unsigned char netdev_get_operstate(const struct vport *vport)
 {
        const struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
        return netdev_vport->dev->operstate;
 }
 
-int
-netdev_get_ifindex(const struct vport *vport)
+int netdev_get_ifindex(const struct vport *vport)
 {
        const struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
        return netdev_vport->dev->ifindex;
 }
 
-int
-netdev_get_iflink(const struct vport *vport)
+int netdev_get_iflink(const struct vport *vport)
 {
        const struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
        return netdev_vport->dev->iflink;
 }
 
-int
-netdev_get_mtu(const struct vport *vport)
+int netdev_get_mtu(const struct vport *vport)
 {
        const struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
        return netdev_vport->dev->mtu;
 }
 
 /* Must be called with rcu_read_lock. */
-static void
-netdev_port_receive(struct net_bridge_port *p, struct sk_buff *skb)
+static void netdev_port_receive(struct net_bridge_port *p, struct sk_buff *skb)
 {
        struct vport *vport = (struct vport *)p;
 
@@ -271,8 +262,7 @@ netdev_port_receive(struct net_bridge_port *p, struct sk_buff *skb)
        vport_receive(vport, skb);
 }
 
-static int
-netdev_send(struct vport *vport, struct sk_buff *skb)
+static int netdev_send(struct vport *vport, struct sk_buff *skb)
 {
        struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
        int len = skb->len;
@@ -285,15 +275,15 @@ netdev_send(struct vport *vport, struct sk_buff *skb)
 }
 
 /* Returns null if this device is not attached to a datapath. */
-struct vport *
-netdev_get_vport(struct net_device *dev)
+struct vport *netdev_get_vport(struct net_device *dev)
 {
        return (struct vport *)dev->br_port;
 }
 
 struct vport_ops netdev_vport_ops = {
        .type           = "netdev",
-       .flags          = VPORT_F_REQUIRED,
+       .flags          = (VPORT_F_REQUIRED |
+                         (USE_VPORT_STATS ? VPORT_F_GEN_STATS : 0)),
        .init           = netdev_init,
        .exit           = netdev_exit,
        .create         = netdev_create,