/*
- * Copyright (c) 2009, 2010 Nicira Networks.
+ * Copyright (c) 2009, 2010, 2011 Nicira Networks.
* Distributed under the terms of the GNU GPL version 2.
*
* Significant portions of this file may be copied from parts of the Linux
* kernel, by Linus Torvalds and others.
*/
+#include <linux/hardirq.h>
+#include <linux/if_vlan.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
-#include <linux/rcupdate.h>
#include <linux/skbuff.h>
#include <linux/version.h>
+#include "checksum.h"
#include "datapath.h"
+#include "vlan.h"
#include "vport-generic.h"
#include "vport-internal_dev.h"
#include "vport-netdev.h"
struct internal_dev {
- struct vport *attached_vport, *vport;
+ struct vport *vport;
struct net_device_stats stats;
};
return netdev_priv(netdev);
}
-/* This function is only called by the kernel network layer. It is not a vport
- * get_stats() function. If a vport get_stats() function is defined that
- * results in this being called it will cause infinite recursion. */
+/* This function is only called by the kernel network layer.*/
static struct net_device_stats *internal_dev_sys_stats(struct net_device *netdev)
{
struct vport *vport = internal_dev_get_vport(netdev);
struct net_device_stats *stats = &internal_dev_priv(netdev)->stats;
if (vport) {
- struct rtnl_link_stats64 vport_stats;
+ struct ovs_vport_stats vport_stats;
vport_get_stats(vport, &vport_stats);
stats->tx_errors = vport_stats.rx_errors;
stats->rx_dropped = vport_stats.tx_dropped;
stats->tx_dropped = vport_stats.rx_dropped;
- stats->collisions = vport_stats.collisions;
}
return stats;
/* Called with rcu_read_lock and bottom-halves disabled. */
static int internal_dev_xmit(struct sk_buff *skb, struct net_device *netdev)
{
- struct internal_dev *internal_dev = internal_dev_priv(netdev);
- struct vport *vport = rcu_dereference(internal_dev->vport);
+ if (unlikely(compute_ip_summed(skb, true))) {
+ kfree_skb(skb);
+ return 0;
+ }
- compute_ip_summed(skb, true);
+ vlan_copy_skb_tci(skb);
OVS_CB(skb)->flow = NULL;
- vport_receive(vport, skb);
+ vport_receive(internal_dev_priv(netdev)->vport, skb);
return 0;
}
static void internal_dev_getinfo(struct net_device *netdev,
struct ethtool_drvinfo *info)
{
- struct vport *vport = internal_dev_get_vport(netdev);
- struct dp_port *dp_port;
-
strcpy(info->driver, "openvswitch");
-
- if (!vport)
- return;
-
- dp_port = vport_get_dp_port(vport);
- if (dp_port)
- sprintf(info->bus_info, "%d.%d", dp_port->dp->dp_idx, dp_port->port_no);
}
static const struct ethtool_ops internal_dev_ethtool_ops = {
static int internal_dev_change_mtu(struct net_device *netdev, int new_mtu)
{
- struct vport *vport = internal_dev_get_vport(netdev);
-
if (new_mtu < 68)
return -EINVAL;
- if (vport) {
- struct dp_port *dp_port = vport_get_dp_port(vport);
-
- if (dp_port) {
- if (new_mtu > dp_min_mtu(dp_port->dp))
- return -EINVAL;
- }
- }
-
netdev->mtu = new_mtu;
return 0;
}
return -EOPNOTSUPP;
}
+static void internal_dev_destructor(struct net_device *dev)
+{
+ struct vport *vport = internal_dev_get_vport(dev);
+
+ vport_free(vport);
+ free_netdev(dev);
+}
+
#ifdef HAVE_NET_DEVICE_OPS
static const struct net_device_ops internal_dev_netdev_ops = {
.ndo_open = internal_dev_open,
netdev->change_mtu = internal_dev_change_mtu;
#endif
- netdev->destructor = free_netdev;
+ netdev->destructor = internal_dev_destructor;
SET_ETHTOOL_OPS(netdev, &internal_dev_ethtool_ops);
netdev->tx_queue_len = 0;
netdev->flags = IFF_BROADCAST | IFF_MULTICAST;
- netdev->features = NETIF_F_LLTX | NETIF_F_SG | NETIF_F_HIGHDMA
- | NETIF_F_HW_CSUM | NETIF_F_TSO;
+ netdev->features = NETIF_F_LLTX | NETIF_F_SG | NETIF_F_FRAGLIST |
+ NETIF_F_HIGHDMA | NETIF_F_HW_CSUM | NETIF_F_TSO;
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+ netdev->vlan_features = netdev->features;
+ netdev->features |= NETIF_F_HW_VLAN_TX;
+#endif
vport_gen_rand_ether_addr(netdev->dev_addr);
}
-static struct vport *internal_dev_create(const char *name,
- const void __user *config)
+static struct vport *internal_dev_create(const struct vport_parms *parms)
{
struct vport *vport;
struct netdev_vport *netdev_vport;
struct internal_dev *internal_dev;
int err;
- vport = vport_alloc(sizeof(struct netdev_vport), &internal_vport_ops);
+ vport = vport_alloc(sizeof(struct netdev_vport), &internal_vport_ops, parms);
if (IS_ERR(vport)) {
err = PTR_ERR(vport);
goto error;
netdev_vport = netdev_vport_priv(vport);
- netdev_vport->dev = alloc_netdev(sizeof(struct internal_dev), name, do_setup);
+ netdev_vport->dev = alloc_netdev(sizeof(struct internal_dev), parms->name, do_setup);
if (!netdev_vport->dev) {
err = -ENOMEM;
goto error_free_vport;
}
internal_dev = internal_dev_priv(netdev_vport->dev);
- rcu_assign_pointer(internal_dev->vport, vport);
+ internal_dev->vport = vport;
err = register_netdevice(netdev_vport->dev);
if (err)
goto error_free_netdev;
+ dev_set_promiscuity(netdev_vport->dev, 1);
+ netif_start_queue(netdev_vport->dev);
+
return vport;
error_free_netdev:
return ERR_PTR(err);
}
-static int internal_dev_destroy(struct vport *vport)
+static void internal_dev_destroy(struct vport *vport)
{
struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
- unregister_netdevice(netdev_vport->dev);
- vport_free(vport);
-
- return 0;
-}
-
-static int internal_dev_attach(struct vport *vport)
-{
- struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
- struct internal_dev *internal_dev = internal_dev_priv(netdev_vport->dev);
-
- rcu_assign_pointer(internal_dev->attached_vport, internal_dev->vport);
- dev_set_promiscuity(netdev_vport->dev, 1);
- netif_start_queue(netdev_vport->dev);
-
- return 0;
-}
-
-static int internal_dev_detach(struct vport *vport)
-{
- struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
- struct internal_dev *internal_dev = internal_dev_priv(netdev_vport->dev);
-
netif_stop_queue(netdev_vport->dev);
dev_set_promiscuity(netdev_vport->dev, -1);
- rcu_assign_pointer(internal_dev->attached_vport, NULL);
- return 0;
+ /* unregister_netdevice() waits for an RCU grace period. */
+ unregister_netdevice(netdev_vport->dev);
}
static int internal_dev_recv(struct vport *vport, struct sk_buff *skb)
struct net_device *netdev = netdev_vport_priv(vport)->dev;
int len;
- skb->dev = netdev;
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37)
+ if (unlikely(vlan_deaccel_tag(skb)))
+ return 0;
+#endif
+
len = skb->len;
+ skb->dev = netdev;
skb->pkt_type = PACKET_HOST;
skb->protocol = eth_type_trans(skb, netdev);
+ forward_ip_summed(skb, false);
if (in_interrupt())
netif_rx(skb);
}
const struct vport_ops internal_vport_ops = {
- .type = "internal",
- .flags = VPORT_F_REQUIRED | VPORT_F_GEN_STATS | VPORT_F_FLOW,
+ .type = OVS_VPORT_TYPE_INTERNAL,
+ .flags = VPORT_F_REQUIRED | VPORT_F_FLOW,
.create = internal_dev_create,
.destroy = internal_dev_destroy,
- .attach = internal_dev_attach,
- .detach = internal_dev_detach,
- .set_mtu = netdev_set_mtu,
.set_addr = netdev_set_addr,
.get_name = netdev_get_name,
.get_addr = netdev_get_addr,
.is_running = netdev_is_running,
.get_operstate = netdev_get_operstate,
.get_ifindex = netdev_get_ifindex,
- .get_iflink = netdev_get_iflink,
.get_mtu = netdev_get_mtu,
.send = internal_dev_recv,
};
struct vport *internal_dev_get_vport(struct net_device *netdev)
{
- struct internal_dev *internal_dev;
-
if (!is_internal_dev(netdev))
return NULL;
-
- internal_dev = internal_dev_priv(netdev);
- return rcu_dereference(internal_dev->attached_vport);
+
+ return internal_dev_priv(netdev)->vport;
}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff