From ac571de999e14b87890cb960ad6f03fbdde6abc8 Mon Sep 17 00:00:00 2001 From: Ido Schimmel Date: Mon, 14 Nov 2016 11:26:32 +0100 Subject: mlxsw: spectrum_router: Flush FIB tables during fini Since commit b45f64d16d45 ("mlxsw: spectrum_router: Use FIB notifications instead of switchdev calls") we reflect to the device the entire FIB table and not only FIBs that point to netdevs created by the driver. During module removal, FIBs of the second type are removed following NETDEV_UNREGISTER events sent. The other FIBs are still present in both the driver's cache and the device's table. Fix this by iterating over all the FIB tables in the device and flush them. There's no need to take locks, as we're the only writer. Fixes: b45f64d16d45 ("mlxsw: spectrum_router: Use FIB notifications instead of switchdev calls") Signed-off-by: Ido Schimmel Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index cbeeddd70c5a..e83072da6272 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -594,8 +594,11 @@ static int mlxsw_sp_vrs_init(struct mlxsw_sp *mlxsw_sp) return 0; } +static void mlxsw_sp_router_fib_flush(struct mlxsw_sp *mlxsw_sp); + static void mlxsw_sp_vrs_fini(struct mlxsw_sp *mlxsw_sp) { + mlxsw_sp_router_fib_flush(mlxsw_sp); kfree(mlxsw_sp->router.vrs); } @@ -1867,18 +1870,18 @@ static int mlxsw_sp_router_set_abort_trap(struct mlxsw_sp *mlxsw_sp) return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ralue), ralue_pl); } -static void mlxsw_sp_router_fib4_abort(struct mlxsw_sp *mlxsw_sp) +static void mlxsw_sp_router_fib_flush(struct mlxsw_sp *mlxsw_sp) { struct mlxsw_resources *resources; struct mlxsw_sp_fib_entry *fib_entry; struct mlxsw_sp_fib_entry *tmp; struct mlxsw_sp_vr *vr; int i; - int err; resources = mlxsw_core_resources_get(mlxsw_sp->core); for (i = 0; i < resources->max_virtual_routers; i++) { vr = &mlxsw_sp->router.vrs[i]; + if (!vr->used) continue; @@ -1894,6 +1897,13 @@ static void mlxsw_sp_router_fib4_abort(struct mlxsw_sp *mlxsw_sp) break; } } +} + +static void mlxsw_sp_router_fib4_abort(struct mlxsw_sp *mlxsw_sp) +{ + int err; + + mlxsw_sp_router_fib_flush(mlxsw_sp); mlxsw_sp->router.aborted = true; err = mlxsw_sp_router_set_abort_trap(mlxsw_sp); if (err) -- cgit v1.2.3-59-g8ed1b