diff options
| author | Ido Schimmel <idosch@mellanox.com> | 2018-01-22 09:17:40 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-22 09:22:10 -0500 |
| commit | 4fd003125f66a6c8ef6add934fac7cacdbbe509c (patch) | |
| tree | 2c06e0b60581735a8c8a82b0734fd9ce32add258 /drivers | |
| parent | 9d6474e458b13a94a0d5b141f2b8f38adf1991ae (diff) | |
| download | linux-4fd003125f66a6c8ef6add934fac7cacdbbe509c.tar.bz2 | |
mlxsw: spectrum_router: Use the nodes list as indication for empty FIB
Currently, each FIB (IPv4 / IPv6) in a virtual router holds a prefix
usage that is used to choose a matching LPM tree, but also to check if
the FIB is empty, so that the LPM tree could be unbound.
Next patches will remove the reliance on the per-FIB prefix usage for
LPM tree matching. Keeping it only to check if the FIB is empty is a
waste, since we can use the nodes ({Prefix, Length}) list instead.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index 31891ae11c9b..634e427fb80e 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -349,14 +349,6 @@ mlxsw_sp_prefix_usage_eq(struct mlxsw_sp_prefix_usage *prefix_usage1, return !memcmp(prefix_usage1, prefix_usage2, sizeof(*prefix_usage1)); } -static bool -mlxsw_sp_prefix_usage_none(struct mlxsw_sp_prefix_usage *prefix_usage) -{ - struct mlxsw_sp_prefix_usage prefix_usage_none = {{ 0 } }; - - return mlxsw_sp_prefix_usage_eq(prefix_usage, &prefix_usage_none); -} - static void mlxsw_sp_prefix_usage_cpy(struct mlxsw_sp_prefix_usage *prefix_usage1, struct mlxsw_sp_prefix_usage *prefix_usage2) @@ -4240,8 +4232,11 @@ static int mlxsw_sp_fib_lpm_tree_link(struct mlxsw_sp *mlxsw_sp, static void mlxsw_sp_fib_lpm_tree_unlink(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fib *fib) { - if (!mlxsw_sp_prefix_usage_none(&fib->prefix_usage)) + if (!list_is_singular(&fib->node_list)) return; + /* Last node is being unlinked from the FIB. Unbind the + * tree and drop the reference. + */ mlxsw_sp_vr_lpm_tree_unbind(mlxsw_sp, fib); mlxsw_sp_lpm_tree_put(mlxsw_sp, fib->lpm_tree); fib->lpm_tree = NULL; |