diff options
| author | Roopa Prabhu <roopa@cumulusnetworks.com> | 2015-03-21 10:27:28 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-03-23 16:44:56 -0400 |
| commit | 558d51fa2f400774ffe3ea76a0df7c1cf92bc598 (patch) | |
| tree | 9babb941db8b5e62efa883c79e8dd64f9b8e4dad /net/switchdev | |
| parent | 08b4b8ea799d27c5dd28e8cb9188d2e88e58d294 (diff) | |
| download | linux-558d51fa2f400774ffe3ea76a0df7c1cf92bc598.tar.gz | |
switchdev: fix stp update API to work with layered netdevices
make it same as the netdev_switch_port_bridge_setlink/dellink api (ie traverse lowerdevs to get to the switch port). removes "WARN_ON(!ops->ndo_switch_parent_id_get)" because direct bridge ports can be stacked netdevices (like bonds and team of switch ports) which may not implement this ndo. v2 to v3: - remove changes to bond and team. Bring back the transparently following lowerdevs like i initially had for setlink/getlink (http://www.spinics.net/lists/netdev/msg313436.html) dave and scott feldman also seem to prefer it be that way and move to non-transparent way of doing things if we see a problem down the lane. v3 to v4: - fix ret initialization v4 to v5: - return err on first failure (scott feldman) v5 to v6: - change variable name (err) and initialize to -EOPNOTSUPP (scott feldman). Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Acked-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/switchdev')
| -rw-r--r-- | net/switchdev/switchdev.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c index c9bfa004abed..46568b85c333 100644 --- a/net/switchdev/switchdev.c +++ b/net/switchdev/switchdev.c @@ -47,11 +47,20 @@ EXPORT_SYMBOL_GPL(netdev_switch_parent_id_get); int netdev_switch_port_stp_update(struct net_device *dev, u8 state) { const struct swdev_ops *ops = dev->swdev_ops; + struct net_device *lower_dev; + struct list_head *iter; + int err = -EOPNOTSUPP; - if (!ops || !ops->swdev_port_stp_update) - return -EOPNOTSUPP; - WARN_ON(!ops->swdev_parent_id_get); - return ops->swdev_port_stp_update(dev, state); + if (ops && ops->swdev_port_stp_update) + return ops->swdev_port_stp_update(dev, state); + + netdev_for_each_lower_dev(dev, lower_dev, iter) { + err = netdev_switch_port_stp_update(lower_dev, state); + if (err && err != -EOPNOTSUPP) + return err; + } + + return err; } EXPORT_SYMBOL_GPL(netdev_switch_port_stp_update); |