58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/list.h>
|
||
|
|
#include <linux/netdevice.h>
|
||
|
|
#include <linux/rtnetlink.h>
|
||
|
|
#include <linux/skbuff.h>
|
||
|
|
#include <net/switchdev.h>
|
||
|
|
|
||
|
|
#include "br_private.h"
|
||
|
|
|
||
|
|
static int br_switchdev_mark_get(struct net_bridge *br, struct net_device *dev)
|
||
|
|
{
|
||
|
|
struct net_bridge_port *p;
|
||
|
|
|
||
|
|
/* dev is yet to be added to the port list. */
|
||
|
|
list_for_each_entry(p, &br->port_list, list) {
|
||
|
|
if (switchdev_port_same_parent_id(dev, p->dev))
|
||
|
|
return p->offload_fwd_mark;
|
||
|
|
}
|
||
|
|
|
||
|
|
return ++br->offload_fwd_mark;
|
||
|
|
}
|
||
|
|
|
||
|
|
int nbp_switchdev_mark_set(struct net_bridge_port *p)
|
||
|
|
{
|
||
|
|
struct switchdev_attr attr = {
|
||
|
|
.orig_dev = p->dev,
|
||
|
|
.id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
|
||
|
|
};
|
||
|
|
int err;
|
||
|
|
|
||
|
|
ASSERT_RTNL();
|
||
|
|
|
||
|
|
err = switchdev_port_attr_get(p->dev, &attr);
|
||
|
|
if (err) {
|
||
|
|
if (err == -EOPNOTSUPP)
|
||
|
|
return 0;
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
p->offload_fwd_mark = br_switchdev_mark_get(p->br, p->dev);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void nbp_switchdev_frame_mark(const struct net_bridge_port *p,
|
||
|
|
struct sk_buff *skb)
|
||
|
|
{
|
||
|
|
if (skb->offload_fwd_mark && !WARN_ON_ONCE(!p->offload_fwd_mark))
|
||
|
|
BR_INPUT_SKB_CB(skb)->offload_fwd_mark = p->offload_fwd_mark;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p,
|
||
|
|
const struct sk_buff *skb)
|
||
|
|
{
|
||
|
|
return !skb->offload_fwd_mark ||
|
||
|
|
BR_INPUT_SKB_CB(skb)->offload_fwd_mark != p->offload_fwd_mark;
|
||
|
|
}
|