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Date:   Fri, 21 Jul 2017 20:31:38 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, idosch@...lanox.com, mlxsw@...lanox.com
Subject: [patch net-next] mlxsw: spectrum_router: Don't batch neighbour deletion

From: Ido Schimmel <idosch@...lanox.com>

Current firmware supported by the driver doesn't support batch deletion
of IPv6 neighbours on a given router interface (RIF).

Until a new version that supports this functionality is made available,
delete neighbours one by one.

Signed-off-by: Ido Schimmel <idosch@...lanox.com>
Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index e6d629f..548552c 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -1419,25 +1419,16 @@ static void mlxsw_sp_neigh_fini(struct mlxsw_sp *mlxsw_sp)
 	rhashtable_destroy(&mlxsw_sp->router->neigh_ht);
 }
 
-static int mlxsw_sp_neigh_rif_flush(struct mlxsw_sp *mlxsw_sp,
-				    const struct mlxsw_sp_rif *rif)
-{
-	char rauht_pl[MLXSW_REG_RAUHT_LEN];
-
-	mlxsw_reg_rauht_pack(rauht_pl, MLXSW_REG_RAUHT_OP_WRITE_DELETE_ALL,
-			     rif->rif_index, rif->addr);
-	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(rauht), rauht_pl);
-}
-
 static void mlxsw_sp_neigh_rif_gone_sync(struct mlxsw_sp *mlxsw_sp,
 					 struct mlxsw_sp_rif *rif)
 {
 	struct mlxsw_sp_neigh_entry *neigh_entry, *tmp;
 
-	mlxsw_sp_neigh_rif_flush(mlxsw_sp, rif);
 	list_for_each_entry_safe(neigh_entry, tmp, &rif->neigh_list,
-				 rif_list_node)
+				 rif_list_node) {
+		mlxsw_sp_neigh_entry_update(mlxsw_sp, neigh_entry, false);
 		mlxsw_sp_neigh_entry_destroy(mlxsw_sp, neigh_entry);
+	}
 }
 
 struct mlxsw_sp_nexthop_key {
-- 
2.9.3

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