mlxsw: spectrum_buffers: Tweak SBMM configuration

The SBMM register configures shared buffer allocation and settings for
MC packets according to switch priority. The recommended values are no
reserved buffer and alpha of 1/4, which corresponds to buf_max of 6.
Update mlxsw_sp_sb_mms accordingly.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
index 7b9f79c7c0256328e2010f90cb7dd1650ed3b746..12c61e0cc5705a27b05127d58274340c5e62a13f 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
@@ -566,21 +566,21 @@ struct mlxsw_sp_sb_mm {
        }
 
 static const struct mlxsw_sp_sb_mm mlxsw_sp_sb_mms[] = {
-       MLXSW_SP_SB_MM(20000, 0xff, 4),
-       MLXSW_SP_SB_MM(20000, 0xff, 4),
-       MLXSW_SP_SB_MM(20000, 0xff, 4),
-       MLXSW_SP_SB_MM(20000, 0xff, 4),
-       MLXSW_SP_SB_MM(20000, 0xff, 4),
-       MLXSW_SP_SB_MM(20000, 0xff, 4),
-       MLXSW_SP_SB_MM(20000, 0xff, 4),
-       MLXSW_SP_SB_MM(20000, 0xff, 4),
-       MLXSW_SP_SB_MM(20000, 0xff, 4),
-       MLXSW_SP_SB_MM(20000, 0xff, 4),
-       MLXSW_SP_SB_MM(20000, 0xff, 4),
-       MLXSW_SP_SB_MM(20000, 0xff, 4),
-       MLXSW_SP_SB_MM(20000, 0xff, 4),
-       MLXSW_SP_SB_MM(20000, 0xff, 4),
-       MLXSW_SP_SB_MM(20000, 0xff, 4),
+       MLXSW_SP_SB_MM(0, 6, 4),
+       MLXSW_SP_SB_MM(0, 6, 4),
+       MLXSW_SP_SB_MM(0, 6, 4),
+       MLXSW_SP_SB_MM(0, 6, 4),
+       MLXSW_SP_SB_MM(0, 6, 4),
+       MLXSW_SP_SB_MM(0, 6, 4),
+       MLXSW_SP_SB_MM(0, 6, 4),
+       MLXSW_SP_SB_MM(0, 6, 4),
+       MLXSW_SP_SB_MM(0, 6, 4),
+       MLXSW_SP_SB_MM(0, 6, 4),
+       MLXSW_SP_SB_MM(0, 6, 4),
+       MLXSW_SP_SB_MM(0, 6, 4),
+       MLXSW_SP_SB_MM(0, 6, 4),
+       MLXSW_SP_SB_MM(0, 6, 4),
+       MLXSW_SP_SB_MM(0, 6, 4),
 };
 
 #define MLXSW_SP_SB_MMS_LEN ARRAY_SIZE(mlxsw_sp_sb_mms)