netdev - [PATCH net-next 10/13] mlxsw: spectrum_buffers: Tweak SBMM configuration

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Date:   Thu, 20 Sep 2018 09:21:33 +0300
From:   Ido Schimmel <idosch@...lanox.com>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, jiri@...lanox.com, petrm@...lanox.com,
        mlxsw@...lanox.com, Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 10/13] mlxsw: spectrum_buffers: Tweak SBMM configuration

From: Petr Machata <petrm@...lanox.com>

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@...lanox.com>
Reviewed-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
 .../mellanox/mlxsw/spectrum_buffers.c         | 30 +++++++++----------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
index 7b9f79c7c025..12c61e0cc570 100644
--- 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)
-- 
2.17.1