diff options
| author | Eli Cohen <elic@nvidia.com> | 2022-09-21 13:33:29 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2022-11-12 02:20:18 -0800 |
| commit | dd3dd7263cdeac601d0ecc5f04d87eee0a8277aa (patch) | |
| tree | 47bd21bfa195c16705b09becfbbd4036939c9dea | |
| parent | 71b75f0e02ed160ccbb4fe609036abe83aa32054 (diff) | |
| download | linux-dd3dd7263cdeac601d0ecc5f04d87eee0a8277aa.tar.gz linux-dd3dd7263cdeac601d0ecc5f04d87eee0a8277aa.tar.bz2 linux-dd3dd7263cdeac601d0ecc5f04d87eee0a8277aa.zip | |
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: Eli Cohen <elic@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/main.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index 9e6da51b7481..6d7c102861ea 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -1588,6 +1588,16 @@ err: 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); |