xenserver: Fix comment in interface-reconfigure.

[openvswitch] / datapath / datapath.c

diff --git a/datapath/datapath.c b/datapath/datapath.c
index 539859a40c908a2698d12fa9970e70f484809ac6..1e878ebeeeff44bcf178495f32c0a9b8bc4bd187 100644 (file)
--- a/datapath/datapath.c
+++ b/datapath/datapath.c
@@ -81,7 +81,7 @@ struct datapath *get_dp(int dp_idx)
 }
 EXPORT_SYMBOL_GPL(get_dp);
 
-struct datapath *get_dp_locked(int dp_idx)
+static struct datapath *get_dp_locked(int dp_idx)
 {
        struct datapath *dp;
 
@@ -176,7 +176,7 @@ static void release_dp(struct kobject *kobj)
        kfree(dp);
 }
 
-struct kobj_type dp_ktype = {
+static struct kobj_type dp_ktype = {
        .release = release_dp
 };
 
@@ -325,7 +325,7 @@ static void release_nbp(struct kobject *kobj)
        kfree(p);
 }
 
-struct kobj_type brport_ktype = {
+static struct kobj_type brport_ktype = {
 #ifdef CONFIG_SYSFS
        .sysfs_ops = &brport_sysfs_ops,
 #endif
@@ -349,6 +349,7 @@ static int new_nbp(struct datapath *dp, struct net_device *dev, int port_no)
        p->port_no = port_no;
        p->dp = dp;
        p->dev = dev;
+       atomic_set(&p->sflow_pool, 0);
        if (!is_dp_dev(dev))
                rcu_assign_pointer(dev->br_port, p);
        else {
@@ -419,9 +420,10 @@ got_port_no:
        if (err)
                goto out_put;
 
+       set_dp_devs_mtu(dp, dev);
        dp_sysfs_add_if(dp->ports[port_no]);
 
-       err = __put_user(port_no, &port.port);
+       err = __put_user(port_no, &portp->port);
 
 out_put:
        dev_put(dev);
@@ -645,9 +647,7 @@ int vswitch_skb_checksum_setup(struct sk_buff *skb)
 out:
        return err;
 }
-#else
-int vswitch_skb_checksum_setup(struct sk_buff *skb) { return 0; }
-#endif /* CONFIG_XEN && linux == 2.6.18 */
+#endif /* CONFIG_XEN && HAVE_PROTO_DATA_VALID */
 
  /* Types of checksums that we can receive (these all refer to L4 checksums):
  * 1. CHECKSUM_NONE: Device that did not compute checksum, contains full
@@ -670,7 +670,7 @@ int vswitch_skb_checksum_setup(struct sk_buff *skb) { return 0; }
  * 4. CHECKSUM_UNNECESSARY (with proto_csum_blank true): This packet was
  *     generated locally by a Xen DomU and has a partial checksum.  If it is
  *     handled on this machine (Dom0 or DomU), then the checksum will not be
- *     computed.  If it goes off box, the checksum in the packet needs to
+ *     computed.  If it goes off box, the checksum in the packet needs to be
  *     completed.  Calling skb_checksum_setup converts this to CHECKSUM_HW
  *     (CHECKSUM_PARTIAL) so that the checksum can be completed.  In later
  *     kernels, this combination is replaced with CHECKSUM_PARTIAL.
@@ -795,8 +795,7 @@ dp_output_control(struct datapath *dp, struct sk_buff *skb, int queue_no,
        int err;
 
        WARN_ON_ONCE(skb_shared(skb));
-       BUG_ON(queue_no != _ODPL_MISS_NR && queue_no != _ODPL_ACTION_NR);
-
+       BUG_ON(queue_no != _ODPL_MISS_NR && queue_no != _ODPL_ACTION_NR && queue_no != _ODPL_SFLOW_NR);
        queue = &dp->queues[queue_no];
        err = -ENOBUFS;
        if (skb_queue_len(queue) >= DP_MAX_QUEUE_LEN)
@@ -1319,6 +1318,29 @@ int dp_min_mtu(const struct datapath *dp)
        return mtu ? mtu : ETH_DATA_LEN;
 }
 
+/* Sets the MTU of all datapath devices to the minimum of the ports. 'dev'
+ * is the device whose MTU may have changed.  Must be called with RTNL lock
+ * and dp_mutex. */
+void set_dp_devs_mtu(const struct datapath *dp, struct net_device *dev)
+{
+       struct net_bridge_port *p;
+       int mtu;
+
+       ASSERT_RTNL();
+
+       if (is_dp_dev(dev))
+               return;
+
+       mtu = dp_min_mtu(dp);
+
+       list_for_each_entry_rcu (p, &dp->port_list, node) {
+               struct net_device *br_dev = p->dev;
+
+               if (is_dp_dev(br_dev))
+                       dev_set_mtu(br_dev, mtu);
+       }
+}
+
 static int
 put_port(const struct net_bridge_port *p, struct odp_port __user *uop)
 {
@@ -1475,6 +1497,7 @@ static long openvswitch_ioctl(struct file *f, unsigned int cmd,
        int dp_idx = iminor(f->f_dentry->d_inode);
        struct datapath *dp;
        int drop_frags, listeners, port_no;
+       unsigned int sflow_probability;
        int err;
 
        /* Handle commands with special locking requirements up front. */
@@ -1538,6 +1561,16 @@ static long openvswitch_ioctl(struct file *f, unsigned int cmd,
                set_listen_mask(f, listeners);
                break;
 
+       case ODP_GET_SFLOW_PROBABILITY:
+               err = put_user(dp->sflow_probability, (unsigned int __user *)argp);
+               break;
+
+       case ODP_SET_SFLOW_PROBABILITY:
+               err = get_user(sflow_probability, (unsigned int __user *)argp);
+               if (!err)
+                       dp->sflow_probability = sflow_probability;
+               break;
+
        case ODP_PORT_QUERY:
                err = query_port(dp, (struct odp_port __user *)argp);
                break;