[PATCH net-next V2 01/13] net/mlx5: Log the data direct to PF device mapping

[Tariq Toukan <tariqt@nvidia.com>]

From: Dragos Tatulea <dtatulea@nvidia.com>

Emit an informational message when a data direct device is bound to a
PF, showing the data direct BDF alongside the PF BDF (the mlx5_core log
prefix), to make the mapping observable from dmesg.

Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/data_direct.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/data_direct.c b/drivers/net/ethernet/mellanox/mlx5/core/data_direct.c
index 5afb11a2a9f0..7db94b8a5b79 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/data_direct.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/data_direct.c
@@ -21,6 +21,7 @@ static LIST_HEAD(mlx5_data_direct_reg_list);
 static DEFINE_MUTEX(mlx5_data_direct_mutex);
 
 struct mlx5_data_direct_registration {
+	struct mlx5_core_dev *mdev;
 	char vuid[MLX5_ST_SZ_BYTES(array1024_auto) + 1];
 	struct list_head list;
 	struct blocking_notifier_head users;
@@ -189,6 +190,9 @@ static void mlx5_data_direct_bind(struct mlx5_data_direct_registration *reg,
 				  struct mlx5_data_direct_dev *dev)
 {
 	WRITE_ONCE(reg->dd.dev, dev);
+
+	mlx5_core_info(reg->mdev, "bound data direct device %s\n",
+		       pci_name(dev->pdev));
 }
 
 static void
@@ -212,6 +216,7 @@ int mlx5_data_direct_init(struct mlx5_core_dev *mdev)
 	if (!reg)
 		return -ENOMEM;
 
+	reg->mdev = mdev;
 	BLOCKING_INIT_NOTIFIER_HEAD(&reg->users);
 
 	err = mlx5_data_direct_query_vuid(mdev, reg->vuid);
-- 
2.44.0