diff options
| author | Vivien Didelot <vivien.didelot@savoirfairelinux.com> | 2017-02-03 21:20:21 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-02-07 00:53:29 +0300 |
| commit | 04d3a4c6af52a58370795bc9f70dc15f51f8bb84 (patch) | |
| tree | 07ed46ceedeb980d62da34ae26e3aac5f8af7dfb /net/dsa/switch.c | |
| parent | f515f192ab4f45bb695146b82432d63d98775787 (diff) | |
| download | linux-04d3a4c6af52a58370795bc9f70dc15f51f8bb84.tar.xz | |
net: dsa: introduce bridge notifier
A slave device will now notify the switch fabric once its port is
bridged or unbridged, instead of calling directly its switch operations.
This code allows propagating cross-chip bridging events in the fabric.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa/switch.c')
| -rw-r--r-- | net/dsa/switch.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/net/dsa/switch.c b/net/dsa/switch.c index e22fa7633d03..6456dacf9ae9 100644 --- a/net/dsa/switch.c +++ b/net/dsa/switch.c @@ -13,6 +13,32 @@ #include <linux/notifier.h> #include <net/dsa.h> +static int dsa_switch_bridge_join(struct dsa_switch *ds, + struct dsa_notifier_bridge_info *info) +{ + if (ds->index == info->sw_index && ds->ops->port_bridge_join) + return ds->ops->port_bridge_join(ds, info->port, info->br); + + if (ds->index != info->sw_index) + dev_dbg(ds->dev, "crosschip DSA port %d.%d bridged to %s\n", + info->sw_index, info->port, netdev_name(info->br)); + + return 0; +} + +static int dsa_switch_bridge_leave(struct dsa_switch *ds, + struct dsa_notifier_bridge_info *info) +{ + if (ds->index == info->sw_index && ds->ops->port_bridge_leave) + ds->ops->port_bridge_leave(ds, info->port, info->br); + + if (ds->index != info->sw_index) + dev_dbg(ds->dev, "crosschip DSA port %d.%d unbridged from %s\n", + info->sw_index, info->port, netdev_name(info->br)); + + return 0; +} + static int dsa_switch_event(struct notifier_block *nb, unsigned long event, void *info) { @@ -20,6 +46,12 @@ static int dsa_switch_event(struct notifier_block *nb, int err; switch (event) { + case DSA_NOTIFIER_BRIDGE_JOIN: + err = dsa_switch_bridge_join(ds, info); + break; + case DSA_NOTIFIER_BRIDGE_LEAVE: + err = dsa_switch_bridge_leave(ds, info); + break; default: err = -EOPNOTSUPP; break; |