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openvswitch: Move dev pointer into vport itself

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This is the first step in representing all OVS vports as regular
struct net_devices. Move the net_device pointer into the vport
structure itself to get rid of struct vport_netdev.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2015-07-21 10:44:04 +02:00 • committed by David S. Miller
parent 34ae932a40
commit be4ace6e6b
6 changed files with 59 additions and 91 deletions
Download patch file Download diff file Expand all files Collapse all files

86
net/openvswitch/vport-netdev.c
View file

@ -83,104 +83,97 @@ static struct net_device *get_dpdev(const struct datapath *dp)
local = ovs_vport_ovsl(dp, OVSP_LOCAL);
BUG_ON(!local);
return netdev_vport_priv(local)->dev;
return local->dev;
}
static struct vport *netdev_create(const struct vport_parms *parms)
static struct vport *netdev_link(struct vport *vport, const char *name)
{
struct vport *vport;
struct netdev_vport *netdev_vport;
int err;
vport = ovs_vport_alloc(sizeof(struct netdev_vport),
&ovs_netdev_vport_ops, parms);
if (IS_ERR(vport)) {
err = PTR_ERR(vport);
goto error;
}
netdev_vport = netdev_vport_priv(vport);
netdev_vport->dev = dev_get_by_name(ovs_dp_get_net(vport->dp), parms->name);
if (!netdev_vport->dev) {
vport->dev = dev_get_by_name(ovs_dp_get_net(vport->dp), name);
if (!vport->dev) {
err = -ENODEV;
goto error_free_vport;
}
if (netdev_vport->dev->flags & IFF_LOOPBACK ||
netdev_vport->dev->type != ARPHRD_ETHER ||
ovs_is_internal_dev(netdev_vport->dev)) {
if (vport->dev->flags & IFF_LOOPBACK ||
vport->dev->type != ARPHRD_ETHER ||
ovs_is_internal_dev(vport->dev)) {
err = -EINVAL;
goto error_put;
}
rtnl_lock();
err = netdev_master_upper_dev_link(netdev_vport->dev,
err = netdev_master_upper_dev_link(vport->dev,
get_dpdev(vport->dp));
if (err)
goto error_unlock;
err = netdev_rx_handler_register(netdev_vport->dev, netdev_frame_hook,
err = netdev_rx_handler_register(vport->dev, netdev_frame_hook,
vport);
if (err)
goto error_master_upper_dev_unlink;
dev_disable_lro(netdev_vport->dev);
dev_set_promiscuity(netdev_vport->dev, 1);
netdev_vport->dev->priv_flags |= IFF_OVS_DATAPATH;
dev_disable_lro(vport->dev);
dev_set_promiscuity(vport->dev, 1);
vport->dev->priv_flags |= IFF_OVS_DATAPATH;
rtnl_unlock();
return vport;
error_master_upper_dev_unlink:
netdev_upper_dev_unlink(netdev_vport->dev, get_dpdev(vport->dp));
netdev_upper_dev_unlink(vport->dev, get_dpdev(vport->dp));
error_unlock:
rtnl_unlock();
error_put:
dev_put(netdev_vport->dev);
dev_put(vport->dev);
error_free_vport:
ovs_vport_free(vport);
error:
return ERR_PTR(err);
}
static struct vport *netdev_create(const struct vport_parms *parms)
{
struct vport *vport;
vport = ovs_vport_alloc(0, &ovs_netdev_vport_ops, parms);
if (IS_ERR(vport))
return vport;
return netdev_link(vport, parms->name);
}
static void free_port_rcu(struct rcu_head *rcu)
{
struct netdev_vport *netdev_vport = container_of(rcu,
struct netdev_vport, rcu);
struct vport *vport = container_of(rcu, struct vport, rcu);
dev_put(netdev_vport->dev);
ovs_vport_free(vport_from_priv(netdev_vport));
dev_put(vport->dev);
ovs_vport_free(vport);
}
void ovs_netdev_detach_dev(struct vport *vport)
{
struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
ASSERT_RTNL();
netdev_vport->dev->priv_flags &= ~IFF_OVS_DATAPATH;
netdev_rx_handler_unregister(netdev_vport->dev);
netdev_upper_dev_unlink(netdev_vport->dev,
netdev_master_upper_dev_get(netdev_vport->dev));
dev_set_promiscuity(netdev_vport->dev, -1);
vport->dev->priv_flags &= ~IFF_OVS_DATAPATH;
netdev_rx_handler_unregister(vport->dev);
netdev_upper_dev_unlink(vport->dev,
netdev_master_upper_dev_get(vport->dev));
dev_set_promiscuity(vport->dev, -1);
}
static void netdev_destroy(struct vport *vport)
{
struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
rtnl_lock();
if (netdev_vport->dev->priv_flags & IFF_OVS_DATAPATH)
if (vport->dev->priv_flags & IFF_OVS_DATAPATH)
ovs_netdev_detach_dev(vport);
rtnl_unlock();
call_rcu(&netdev_vport->rcu, free_port_rcu);
call_rcu(&vport->rcu, free_port_rcu);
}
const char *ovs_netdev_get_name(const struct vport *vport)
{
const struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
return netdev_vport->dev->name;
return vport->dev->name;
}
static unsigned int packet_length(const struct sk_buff *skb)
@ -195,18 +188,17 @@ static unsigned int packet_length(const 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 mtu = netdev_vport->dev->mtu;
int mtu = vport->dev->mtu;
int len;
if (unlikely(packet_length(skb) > mtu && !skb_is_gso(skb))) {
net_warn_ratelimited("%s: dropped over-mtu packet: %d > %d\n",
netdev_vport->dev->name,
vport->dev->name,
packet_length(skb), mtu);
goto drop;
}
skb->dev = netdev_vport->dev;
skb->dev = vport->dev;
len = skb->len;
dev_queue_xmit(skb);