From: Ido Schimmel Date: Sun, 23 Aug 2020 08:06:22 +0000 (+0300) Subject: mlxsw: spectrum_trap: Adjust default policer burst size for Spectrum-{2, 3} X-Git-Tag: baikal/mips/sdk5.9~12462^2~454^2~6 X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=8bc753fccd05d1ef2dea32e16f79cf88ed77e950;p=kernel.git mlxsw: spectrum_trap: Adjust default policer burst size for Spectrum-{2, 3} On the Spectrum-{2,3} ASICs the minimum burst size of the packet trap policers needs to be 40% of the configured rate. Otherwise, intermittent drops are observed even when the incoming packet rate is slightly lower than the configured policer rate. Adjust the burst size of the registered packet trap policers so that they do not violate above mentioned limitation. Signed-off-by: Ido Schimmel Reviewed-by: Jiri Pirko Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c index 2e41c5519c1b7..433f14ade464c 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c @@ -291,7 +291,7 @@ static void mlxsw_sp_rx_sample_listener(struct sk_buff *skb, u8 local_port, static const struct mlxsw_sp_trap_policer_item mlxsw_sp_trap_policer_items_arr[] = { { - .policer = MLXSW_SP_TRAP_POLICER(1, 10 * 1024, 128), + .policer = MLXSW_SP_TRAP_POLICER(1, 10 * 1024, 4096), }, { .policer = MLXSW_SP_TRAP_POLICER(2, 128, 128), @@ -303,25 +303,25 @@ mlxsw_sp_trap_policer_items_arr[] = { .policer = MLXSW_SP_TRAP_POLICER(4, 128, 128), }, { - .policer = MLXSW_SP_TRAP_POLICER(5, 16 * 1024, 128), + .policer = MLXSW_SP_TRAP_POLICER(5, 16 * 1024, 8192), }, { .policer = MLXSW_SP_TRAP_POLICER(6, 128, 128), }, { - .policer = MLXSW_SP_TRAP_POLICER(7, 1024, 128), + .policer = MLXSW_SP_TRAP_POLICER(7, 1024, 512), }, { - .policer = MLXSW_SP_TRAP_POLICER(8, 20 * 1024, 1024), + .policer = MLXSW_SP_TRAP_POLICER(8, 20 * 1024, 8192), }, { .policer = MLXSW_SP_TRAP_POLICER(9, 128, 128), }, { - .policer = MLXSW_SP_TRAP_POLICER(10, 1024, 128), + .policer = MLXSW_SP_TRAP_POLICER(10, 1024, 512), }, { - .policer = MLXSW_SP_TRAP_POLICER(11, 360, 128), + .policer = MLXSW_SP_TRAP_POLICER(11, 256, 128), }, { .policer = MLXSW_SP_TRAP_POLICER(12, 128, 128), @@ -330,19 +330,19 @@ mlxsw_sp_trap_policer_items_arr[] = { .policer = MLXSW_SP_TRAP_POLICER(13, 128, 128), }, { - .policer = MLXSW_SP_TRAP_POLICER(14, 1024, 128), + .policer = MLXSW_SP_TRAP_POLICER(14, 1024, 512), }, { - .policer = MLXSW_SP_TRAP_POLICER(15, 1024, 128), + .policer = MLXSW_SP_TRAP_POLICER(15, 1024, 512), }, { - .policer = MLXSW_SP_TRAP_POLICER(16, 24 * 1024, 4096), + .policer = MLXSW_SP_TRAP_POLICER(16, 24 * 1024, 16384), }, { - .policer = MLXSW_SP_TRAP_POLICER(17, 19 * 1024, 4096), + .policer = MLXSW_SP_TRAP_POLICER(17, 19 * 1024, 8192), }, { - .policer = MLXSW_SP_TRAP_POLICER(18, 1024, 128), + .policer = MLXSW_SP_TRAP_POLICER(18, 1024, 512), }, { .policer = MLXSW_SP_TRAP_POLICER(19, 1024, 512),