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openvswitch: Use dev_queue_xmit for vport send.

Browse source 
With use of lwtunnel, we can directly call dev_queue_xmit()
rather than calling netdev vport send operation.
Following change make tunnel vport code bit cleaner.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pravin B Shelar 2015-10-20 23:00:10 -07:00 committed by David S. Miller
parent 99e28f18e3
commit aec1592474
8 changed files with 40 additions and 45 deletions
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2
net/openvswitch/vport-geneve.c
View file

@ -128,7 +128,7 @@ static struct vport_ops ovs_geneve_vport_ops = {
.create = geneve_create,
.destroy = ovs_netdev_tunnel_destroy,
.get_options = geneve_get_options,
.send = ovs_netdev_send,
.send = dev_queue_xmit,
.owner = THIS_MODULE,
.get_egress_tun_info = geneve_get_egress_tun_info,
};

2
net/openvswitch/vport-gre.c
View file

@ -94,7 +94,7 @@ static int gre_get_egress_tun_info(struct vport *vport, struct sk_buff *skb,
static struct vport_ops ovs_gre_vport_ops = {
.type = OVS_VPORT_TYPE_GRE,
.create = gre_create,
.send = ovs_netdev_send,
.send = dev_queue_xmit,
.get_egress_tun_info = gre_get_egress_tun_info,
.destroy = ovs_netdev_tunnel_destroy,
.owner = THIS_MODULE,

8
net/openvswitch/vport-internal_dev.c
View file

@ -202,22 +202,21 @@ static void internal_dev_destroy(struct vport *vport)
rtnl_unlock();
}
static void internal_dev_recv(struct vport *vport, struct sk_buff *skb)
static netdev_tx_t internal_dev_recv(struct sk_buff *skb)
{
struct net_device *netdev = vport->dev;
struct net_device *netdev = skb->dev;
struct pcpu_sw_netstats *stats;
if (unlikely(!(netdev->flags & IFF_UP))) {
kfree_skb(skb);
netdev->stats.rx_dropped++;
return;
return NETDEV_TX_OK;
}
skb_dst_drop(skb);
nf_reset(skb);
secpath_reset(skb);
skb->dev = netdev;
skb->pkt_type = PACKET_HOST;
skb->protocol = eth_type_trans(skb, netdev);
skb_postpull_rcsum(skb, eth_hdr(skb), ETH_HLEN);
@ -229,6 +228,7 @@ static void internal_dev_recv(struct vport *vport, struct sk_buff *skb)
u64_stats_update_end(&stats->syncp);
netif_rx(skb);
return NETDEV_TX_OK;
}
static struct vport_ops ovs_internal_vport_ops = {

33
net/openvswitch/vport-netdev.c
View file

@ -190,37 +190,6 @@ void ovs_netdev_tunnel_destroy(struct vport *vport)
}
EXPORT_SYMBOL_GPL(ovs_netdev_tunnel_destroy);
static unsigned int packet_length(const struct sk_buff *skb)
{
unsigned int length = skb->len - ETH_HLEN;
if (skb->protocol == htons(ETH_P_8021Q))
length -= VLAN_HLEN;
return length;
}
void ovs_netdev_send(struct vport *vport, struct sk_buff *skb)
{
int mtu = vport->dev->mtu;
if (unlikely(packet_length(skb) > mtu && !skb_is_gso(skb))) {
net_warn_ratelimited("%s: dropped over-mtu packet: %d > %d\n",
vport->dev->name,
packet_length(skb), mtu);
vport->dev->stats.tx_errors++;
goto drop;
}
skb->dev = vport->dev;
dev_queue_xmit(skb);
return;
drop:
kfree_skb(skb);
}
EXPORT_SYMBOL_GPL(ovs_netdev_send);
/* Returns null if this device is not attached to a datapath. */
struct vport *ovs_netdev_get_vport(struct net_device *dev)
{
@ -235,7 +204,7 @@ static struct vport_ops ovs_netdev_vport_ops = {
.type = OVS_VPORT_TYPE_NETDEV,
.create = netdev_create,
.destroy = netdev_destroy,
.send = ovs_netdev_send,
.send = dev_queue_xmit,
};
int __init ovs_netdev_init(void)

1
net/openvswitch/vport-netdev.h
View file

@ -27,7 +27,6 @@
struct vport *ovs_netdev_get_vport(struct net_device *dev);
struct vport *ovs_netdev_link(struct vport *vport, const char *name);
void ovs_netdev_send(struct vport *vport, struct sk_buff *skb);
void ovs_netdev_detach_dev(struct vport *);
int __init ovs_netdev_init(void);

2
net/openvswitch/vport-vxlan.c
View file

@ -170,7 +170,7 @@ static struct vport_ops ovs_vxlan_netdev_vport_ops = {
.create = vxlan_create,
.destroy = ovs_netdev_tunnel_destroy,
.get_options = vxlan_get_options,
.send = ovs_netdev_send,
.send = dev_queue_xmit,
.get_egress_tun_info = vxlan_get_egress_tun_info,
};

30
net/openvswitch/vport.c
View file

@ -537,3 +537,33 @@ int ovs_vport_get_egress_tun_info(struct vport *vport, struct sk_buff *skb,
return vport->ops->get_egress_tun_info(vport, skb, upcall);
}
static unsigned int packet_length(const struct sk_buff *skb)
{
unsigned int length = skb->len - ETH_HLEN;
if (skb->protocol == htons(ETH_P_8021Q))
length -= VLAN_HLEN;
return length;
}
void ovs_vport_send(struct vport *vport, struct sk_buff *skb)
{
int mtu = vport->dev->mtu;
if (unlikely(packet_length(skb) > mtu && !skb_is_gso(skb))) {
net_warn_ratelimited("%s: dropped over-mtu packet: %d > %d\n",
vport->dev->name,
packet_length(skb), mtu);
vport->dev->stats.tx_errors++;
goto drop;
}
skb->dev = vport->dev;
vport->ops->send(skb);
return;
drop:
kfree_skb(skb);
}

7
net/openvswitch/vport.h
View file

@ -153,7 +153,7 @@ struct vport_ops {
int (*set_options)(struct vport *, struct nlattr *);
int (*get_options)(const struct vport *, struct sk_buff *);
void (*send)(struct vport *, struct sk_buff *);
netdev_tx_t (*send) (struct sk_buff *skb);
int (*get_egress_tun_info)(struct vport *, struct sk_buff *,
struct dp_upcall_info *upcall);
@ -234,9 +234,6 @@ static inline struct rtable *ovs_tunnel_route_lookup(struct net *net,
return rt;
}
static inline void ovs_vport_send(struct vport *vport, struct sk_buff *skb)
{
vport->ops->send(vport, skb);
}
void ovs_vport_send(struct vport *vport, struct sk_buff *skb);
#endif /* vport.h */