[patch net-next v2 10/11] mlxsw: spectrum_router: Request a dump of FIB tables during init

[Jiri Pirko]

From: Ido Schimmel <ido...@mellanox.com>

Make sure the device has a complete view of the FIB tables by invoking
their dump during module init.

Signed-off-by: Ido Schimmel <ido...@mellanox.com>
Signed-off-by: Jiri Pirko <j...@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c 
b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 14bed1d..36a71d2 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -2027,6 +2027,21 @@ static int mlxsw_sp_router_fib_event(struct 
notifier_block *nb,
        return NOTIFY_DONE;
 }
 
+static void mlxsw_sp_router_fib_dump(struct mlxsw_sp *mlxsw_sp)
+{
+       while (!fib_notifier_dump(&mlxsw_sp->fib_nb)) {
+               /* Flush pending FIB notifications and then flush the
+                * device's table before requesting another dump. Do
+                * that with RTNL held, as FIB notification block is
+                * already registered.
+                */
+               mlxsw_core_flush_owq();
+               rtnl_lock();
+               mlxsw_sp_router_fib_flush(mlxsw_sp);
+               rtnl_unlock();
+       }
+}
+
 int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp)
 {
        int err;
@@ -2048,6 +2063,7 @@ int mlxsw_sp_router_init(struct mlxsw_sp *mlxsw_sp)
 
        mlxsw_sp->fib_nb.notifier_call = mlxsw_sp_router_fib_event;
        register_fib_notifier(&mlxsw_sp->fib_nb);
+       mlxsw_sp_router_fib_dump(mlxsw_sp);
        return 0;
 
 err_neigh_init:
-- 
2.7.4