linux-kernel - [PATCH AUTOSEL 4.14 029/109] mlxsw: spectrum: Init shaper for TCs 8..15

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Message-Id: <20191110024541.31567-29-sashal@kernel.org>
Date:   Sat,  9 Nov 2019 21:44:21 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Petr Machata <petrm@...lanox.com>, Jiri Pirko <jiri@...lanox.com>,
        Ido Schimmel <idosch@...lanox.com>,
        "David S . Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 4.14 029/109] mlxsw: spectrum: Init shaper for TCs 8..15

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

[ Upstream commit a9f36656b519a9a21309793c306941a3cd0eeb8f ]

With introduction of MC-aware mode to mlxsw, it became necessary to
configure TCs above 7 as well. There is now code in mlxsw to disable ETS
for these higher classes, but disablement of max shaper was neglected.

By default, max shaper is currently disabled to begin with, so the
problem is just cosmetic. However, for symmetry, do like we do for ETS
configuration, and call mlxsw_sp_port_ets_maxrate_set() for both TC i
and i + 8.

Signed-off-by: Petr Machata <petrm@...lanox.com>
Reviewed-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index a909aa315a92a..226187cba0e81 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -2825,6 +2825,13 @@ static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port *mlxsw_sp_port)
 						    MLXSW_REG_QEEC_MAS_DIS);
 		if (err)
 			return err;
+
+		err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
+						    MLXSW_REG_QEEC_HIERARCY_TC,
+						    i + 8, i,
+						    MLXSW_REG_QEEC_MAS_DIS);
+		if (err)
+			return err;
 	}
 
 	/* Map all priorities to traffic class 0. */
-- 
2.20.1