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switchdev: add new switchdev_port_bridge_getlink 

Like bridge_setlink, add switchdev wrapper to handle bridge_getlink and
call into port driver to get port attrs.  For now, only BR_LEARNING and
BR_LEARNING_SYNC are returned.  To add more, we'll probably want to break
away from ndo_dflt_bridge_getlink() and build the netlink skb directly in
the switchdev code.

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Scott Feldman 2015-05-10 09:48:04 -07:00 committed by David S. Miller
parent 8508025c59
commit 8793d0a664
2 changed files with 38 additions and 0 deletions
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10
include/net/switchdev.h
View File

@ -126,6 +126,9 @@ int register_switchdev_notifier(struct notifier_block *nb);
int unregister_switchdev_notifier(struct notifier_block *nb);
int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
struct switchdev_notifier_info *info);
int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
struct net_device *dev, u32 filter_mask,
int nlflags);
int switchdev_port_bridge_setlink(struct net_device *dev,
struct nlmsghdr *nlh, u16 flags);
int switchdev_port_bridge_dellink(struct net_device *dev,
@ -179,6 +182,13 @@ static inline int call_switchdev_notifiers(unsigned long val,
return NOTIFY_DONE;
}
static inline int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid,
u32 seq, struct net_device *dev,
u32 filter_mask, int nlflags)
{
return -EOPNOTSUPP;
}
static inline int switchdev_port_bridge_setlink(struct net_device *dev,
struct nlmsghdr *nlh,
u16 flags)

28
net/switchdev/switchdev.c
View File

@ -358,6 +358,34 @@ int call_switchdev_notifiers(unsigned long val, struct net_device *dev,
}
EXPORT_SYMBOL_GPL(call_switchdev_notifiers);
/**
* switchdev_port_bridge_getlink - Get bridge port attributes
*
* @dev: port device
*
* Called for SELF on rtnl_bridge_getlink to get bridge port
* attributes.
*/
int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
struct net_device *dev, u32 filter_mask,
int nlflags)
{
struct switchdev_attr attr = {
.id = SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS,
};
u16 mode = BRIDGE_MODE_UNDEF;
u32 mask = BR_LEARNING | BR_LEARNING_SYNC;
int err;
err = switchdev_port_attr_get(dev, &attr);
if (err)
return err;
return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode,
attr.brport_flags, mask, nlflags);
}
EXPORT_SYMBOL_GPL(switchdev_port_bridge_getlink);
static int switchdev_port_br_setflag(struct net_device *dev,
struct nlattr *nlattr,
unsigned long brport_flag)