linux-kernel - [PATCH 4.19 36/99] net/mlx5: E-Switch, Fix esw manager vport indication for more vport commands

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Message-Id: <20190506143057.213753401@linuxfoundation.org>
Date:   Mon,  6 May 2019 16:32:09 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Omri Kahalon <omrik@...lanox.com>,
        Max Gurtovoy <maxg@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 36/99] net/mlx5: E-Switch, Fix esw manager vport indication for more vport commands

[ Upstream commit eca4a928585ac08147e5cc8e2111ecbc6279ee31 ]

Traditionally, the PF (Physical Function) which resides on vport 0 was
the E-switch manager. Since the ECPF (Embedded CPU Physical Function),
which resides on vport 0xfffe, was introduced as the E-Switch manager,
the assumption that the E-switch manager is on vport 0 is incorrect.

Since the eswitch code already uses the actual vport value, all we
need is to always set other_vport=1.

Signed-off-by: Omri Kahalon <omrik@...lanox.com>
Reviewed-by: Max Gurtovoy <maxg@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 26c9f9421901..55ccd90beeb0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -80,8 +80,7 @@ static int arm_vport_context_events_cmd(struct mlx5_core_dev *dev, u16 vport,
 		 opcode, MLX5_CMD_OP_MODIFY_NIC_VPORT_CONTEXT);
 	MLX5_SET(modify_nic_vport_context_in, in, field_select.change_event, 1);
 	MLX5_SET(modify_nic_vport_context_in, in, vport_number, vport);
-	if (vport)
-		MLX5_SET(modify_nic_vport_context_in, in, other_vport, 1);
+	MLX5_SET(modify_nic_vport_context_in, in, other_vport, 1);
 	nic_vport_ctx = MLX5_ADDR_OF(modify_nic_vport_context_in,
 				     in, nic_vport_context);
 
@@ -109,8 +108,7 @@ static int modify_esw_vport_context_cmd(struct mlx5_core_dev *dev, u16 vport,
 	MLX5_SET(modify_esw_vport_context_in, in, opcode,
 		 MLX5_CMD_OP_MODIFY_ESW_VPORT_CONTEXT);
 	MLX5_SET(modify_esw_vport_context_in, in, vport_number, vport);
-	if (vport)
-		MLX5_SET(modify_esw_vport_context_in, in, other_vport, 1);
+	MLX5_SET(modify_esw_vport_context_in, in, other_vport, 1);
 	return mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
 }
 
-- 
2.20.1