netdev - [PATCH net-next v2 7/7] mlxsw: spectrum_switchdev: Schedule respin during trans prepare

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Date:   Mon, 28 May 2018 12:50:36 +0200
From:   Petr Machata <petrm@...lanox.com>
To:     netdev@...r.kernel.org, devel@...verdev.osuosl.org,
        bridge@...ts.linux-foundation.org
Cc:     jiri@...lanox.com, idosch@...lanox.com, davem@...emloft.net,
        razvan.stefanescu@....com, gregkh@...uxfoundation.org,
        stephen@...workplumber.org, andrew@...n.ch,
        vivien.didelot@...oirfairelinux.com, f.fainelli@...il.com,
        nikolay@...ulusnetworks.com
Subject: [PATCH net-next v2 7/7] mlxsw: spectrum_switchdev: Schedule respin
 during trans prepare

Since there's no special support for the bridge events, the driver
returns -EOPNOTSUPP, and thus the commit never happens. Therefore
schedule respin during the prepare stage: there's no real difference one
way or another.

This fixes the problem that mirror-to-gretap offload wouldn't adapt to
changes in bridge vlan configuration right away and another notification
would have to arrive for mlxsw to catch up.

Signed-off-by: Petr Machata <petrm@...lanox.com>
Reviewed-by: Ido Schimmel <idosch@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index cbc8fab..8a15ac4 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -1697,7 +1697,7 @@ static int mlxsw_sp_port_obj_add(struct net_device *dev,
 		vlan = SWITCHDEV_OBJ_PORT_VLAN(obj);
 		err = mlxsw_sp_port_vlans_add(mlxsw_sp_port, vlan, trans);
 
-		if (switchdev_trans_ph_commit(trans)) {
+		if (switchdev_trans_ph_prepare(trans)) {
 			/* The event is emitted before the changes are actually
 			 * applied to the bridge. Therefore schedule the respin
 			 * call for later, so that the respin logic sees the
-- 
2.4.11