[PATCH net-next v5 16/21] switchdev: add new switchdev_port_bridge_getlink
From: <hidden>
Date: 2015-05-05 17:34:19
Subsystem:
networking [general], switchdev, the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Jiri Pirko, Ivan Vecera, Linus Torvalds
From: Scott Feldman <redacted> 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 <redacted> --- include/net/switchdev.h | 10 ++++++++++ net/switchdev/switchdev.c | 28 ++++++++++++++++++++++++++++ 2 files changed, 38 insertions(+)
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 397b1e6..e081d67 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h@@ -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)
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 0e15b6f..9210355 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c@@ -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)
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1.7.10.4