From: Parav Pandit <parav@nvidia.com>
Date: Tue, 17 Aug 2021 15:59:17 +0300
Subject: net/mlx5: Fix rdma aux device on devlink reload
Patch-mainline: v5.15-rc2
Git-commit: 897ae4b40e80be7dcbf2b3079d85fa6339a6b751
References: jsc#SLE-19253

RDMA auxdev parameter registration was skipped for eswitch manager PCI PF.
Due to this when devlink parameter is read, it reads as false in below
code flow.

$ devlink dev reload pci/0000:06:00.0
  devlink_reload()
    mlx5_load_one()
      mlx5_attach_device()
        is_ib_enabled()
          devlink_param_driverinit_value_get()

Due to this, is_ib_enabled() returns false for the RDMA auxiliary
device. This results into a skipping RDMA auxiliary device creation on
reload.

There is no need to check for eswitch manager capability to support RDMA
auxiliary device. Hence, fix it by skipping eswitch manager capability.

Fixes: 87158cedf00e ("net/mlx5: Support enable_rdma devlink dev param")
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/mellanox/mlx5/core/devlink.c |    7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

--- a/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/devlink.c
@@ -657,11 +657,10 @@ static const struct devlink_param enable
 
 static int mlx5_devlink_rdma_param_register(struct devlink *devlink)
 {
-	struct mlx5_core_dev *dev = devlink_priv(devlink);
 	union devlink_param_value value;
 	int err;
 
-	if (!IS_ENABLED(CONFIG_MLX5_INFINIBAND) || MLX5_ESWITCH_MANAGER(dev))
+	if (!IS_ENABLED(CONFIG_MLX5_INFINIBAND))
 		return 0;
 
 	err = devlink_param_register(devlink, &enable_rdma_param);
@@ -678,9 +677,7 @@ static int mlx5_devlink_rdma_param_regis
 
 static void mlx5_devlink_rdma_param_unregister(struct devlink *devlink)
 {
-	struct mlx5_core_dev *dev = devlink_priv(devlink);
-
-	if (!IS_ENABLED(CONFIG_MLX5_INFINIBAND) || MLX5_ESWITCH_MANAGER(dev))
+	if (!IS_ENABLED(CONFIG_MLX5_INFINIBAND))
 		return;
 
 	devlink_param_unpublish(devlink, &enable_rdma_param);