Commit dd3dd726 authored by Eli Cohen's avatar Eli Cohen Committed by Saeed Mahameed
Browse files

net/mlx5: Expose vhca_id to debugfs 



hca_id is an identifier of an mlx5_core instance within the hardware.
This identifier may be required for troubleshooting.

Expose it to debugfs.

Example:

$ cat /sys/kernel/debug/mlx5/mlx5_core.sf.2/vhca_id
0x12

Signed-off-by: default avatarEli Cohen <elic@nvidia.com>
Reviewed-by: default avatarRoi Dayan <roid@nvidia.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@nvidia.com>
parent 71b75f0e

drivers/net/ethernet/mellanox/mlx5/core/main.c

+11 −0
Original line number Diff line number Diff line
@@ -1588,6 +1588,16 @@ static int mlx5_hca_caps_alloc(struct mlx5_core_dev *dev) 
	return -ENOMEM;

}



static int vhca_id_show(struct seq_file *file, void *priv)

{

	struct mlx5_core_dev *dev = file->private;



	seq_printf(file, "0x%x\n", MLX5_CAP_GEN(dev, vhca_id));

	return 0;

}



DEFINE_SHOW_ATTRIBUTE(vhca_id);



int mlx5_mdev_init(struct mlx5_core_dev *dev, int profile_idx)

{

	struct mlx5_priv *priv = &dev->priv;
@@ -1612,6 +1622,7 @@ int mlx5_mdev_init(struct mlx5_core_dev *dev, int profile_idx) 
	priv->numa_node = dev_to_node(mlx5_core_dma_dev(dev));

	priv->dbg.dbg_root = debugfs_create_dir(dev_name(dev->device),

						mlx5_debugfs_root);

	debugfs_create_file("vhca_id", 0400, priv->dbg.dbg_root, dev, &vhca_id_fops);

	INIT_LIST_HEAD(&priv->traps);



	err = mlx5_tout_init(dev);