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-rw-r--r--drivers/vdpa/mlx5/Makefile2
-rw-r--r--drivers/vdpa/mlx5/net/debug.c66
-rw-r--r--drivers/vdpa/mlx5/net/mlx5_vnet.c11
-rw-r--r--drivers/vdpa/mlx5/net/mlx5_vnet.h9
4 files changed, 87 insertions, 1 deletions
diff --git a/drivers/vdpa/mlx5/Makefile b/drivers/vdpa/mlx5/Makefile
index f717978c83bf..e791394c33e3 100644
--- a/drivers/vdpa/mlx5/Makefile
+++ b/drivers/vdpa/mlx5/Makefile
@@ -1,4 +1,4 @@
subdir-ccflags-y += -I$(srctree)/drivers/vdpa/mlx5/core
obj-$(CONFIG_MLX5_VDPA_NET) += mlx5_vdpa.o
-mlx5_vdpa-$(CONFIG_MLX5_VDPA_NET) += net/mlx5_vnet.o core/resources.o core/mr.o
+mlx5_vdpa-$(CONFIG_MLX5_VDPA_NET) += net/mlx5_vnet.o core/resources.o core/mr.o net/debug.o
diff --git a/drivers/vdpa/mlx5/net/debug.c b/drivers/vdpa/mlx5/net/debug.c
new file mode 100644
index 000000000000..95e4801df211
--- /dev/null
+++ b/drivers/vdpa/mlx5/net/debug.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+/* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
+
+#include <linux/debugfs.h>
+#include <linux/mlx5/fs.h>
+#include "mlx5_vnet.h"
+
+static int tirn_show(struct seq_file *file, void *priv)
+{
+ struct mlx5_vdpa_net *ndev = file->private;
+
+ seq_printf(file, "0x%x\n", ndev->res.tirn);
+ return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(tirn);
+
+void mlx5_vdpa_remove_tirn(struct mlx5_vdpa_net *ndev)
+{
+ if (ndev->debugfs)
+ debugfs_remove(ndev->res.tirn_dent);
+}
+
+void mlx5_vdpa_add_tirn(struct mlx5_vdpa_net *ndev)
+{
+ ndev->res.tirn_dent = debugfs_create_file("tirn", 0444, ndev->rx_dent,
+ ndev, &tirn_fops);
+}
+
+static int rx_flow_table_show(struct seq_file *file, void *priv)
+{
+ struct mlx5_vdpa_net *ndev = file->private;
+
+ seq_printf(file, "0x%x\n", mlx5_flow_table_id(ndev->rxft));
+ return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(rx_flow_table);
+
+void mlx5_vdpa_remove_rx_flow_table(struct mlx5_vdpa_net *ndev)
+{
+ if (ndev->debugfs)
+ debugfs_remove(ndev->rx_table_dent);
+}
+
+void mlx5_vdpa_add_rx_flow_table(struct mlx5_vdpa_net *ndev)
+{
+ ndev->rx_table_dent = debugfs_create_file("table_id", 0444, ndev->rx_dent,
+ ndev, &rx_flow_table_fops);
+}
+
+void mlx5_vdpa_add_debugfs(struct mlx5_vdpa_net *ndev)
+{
+ struct mlx5_core_dev *mdev;
+
+ mdev = ndev->mvdev.mdev;
+ ndev->debugfs = debugfs_create_dir(dev_name(&ndev->mvdev.vdev.dev),
+ mlx5_debugfs_get_dev_root(mdev));
+ if (!IS_ERR(ndev->debugfs))
+ ndev->rx_dent = debugfs_create_dir("rx", ndev->debugfs);
+}
+
+void mlx5_vdpa_remove_debugfs(struct dentry *dbg)
+{
+ debugfs_remove_recursive(dbg);
+}
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index da54a188077d..4b097e6ddba0 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -1388,11 +1388,16 @@ static int create_tir(struct mlx5_vdpa_net *ndev)
err = mlx5_vdpa_create_tir(&ndev->mvdev, in, &ndev->res.tirn);
kfree(in);
+ if (err)
+ return err;
+
+ mlx5_vdpa_add_tirn(ndev);
return err;
}
static void destroy_tir(struct mlx5_vdpa_net *ndev)
{
+ mlx5_vdpa_remove_tirn(ndev);
mlx5_vdpa_destroy_tir(&ndev->mvdev, ndev->res.tirn);
}
@@ -1578,6 +1583,7 @@ static int setup_steering(struct mlx5_vdpa_net *ndev)
mlx5_vdpa_warn(&ndev->mvdev, "failed to create flow table\n");
return PTR_ERR(ndev->rxft);
}
+ mlx5_vdpa_add_rx_flow_table(ndev);
err = mac_vlan_add(ndev, ndev->config.mac, 0, false);
if (err)
@@ -1586,6 +1592,7 @@ static int setup_steering(struct mlx5_vdpa_net *ndev)
return 0;
err_add:
+ mlx5_vdpa_remove_rx_flow_table(ndev);
mlx5_destroy_flow_table(ndev->rxft);
return err;
}
@@ -1593,6 +1600,7 @@ err_add:
static void teardown_steering(struct mlx5_vdpa_net *ndev)
{
clear_mac_vlan_table(ndev);
+ mlx5_vdpa_remove_rx_flow_table(ndev);
mlx5_destroy_flow_table(ndev->rxft);
}
@@ -3135,6 +3143,7 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name,
if (err)
goto err_reg;
+ mlx5_vdpa_add_debugfs(ndev);
mgtdev->ndev = ndev;
return 0;
@@ -3161,6 +3170,8 @@ static void mlx5_vdpa_dev_del(struct vdpa_mgmt_dev *v_mdev, struct vdpa_device *
struct mlx5_vdpa_net *ndev = to_mlx5_vdpa_ndev(mvdev);
struct workqueue_struct *wq;
+ mlx5_vdpa_remove_debugfs(ndev->debugfs);
+ ndev->debugfs = NULL;
if (ndev->nb_registered) {
ndev->nb_registered = false;
mlx5_notifier_unregister(mvdev->mdev, &ndev->nb);
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.h b/drivers/vdpa/mlx5/net/mlx5_vnet.h
index 6691c879a6ca..f2cef3925e5b 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.h
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.h
@@ -16,6 +16,7 @@ struct mlx5_vdpa_net_resources {
u32 tirn;
u32 rqtn;
bool valid;
+ struct dentry *tirn_dent;
};
#define MLX5V_MACVLAN_SIZE 256
@@ -43,6 +44,7 @@ struct mlx5_vdpa_net {
struct vdpa_callback config_cb;
struct mlx5_vdpa_wq_ent cvq_ent;
struct hlist_head macvlan_hash[MLX5V_MACVLAN_SIZE];
+ struct dentry *debugfs;
};
struct macvlan_node {
@@ -52,4 +54,11 @@ struct macvlan_node {
u64 macvlan;
};
+void mlx5_vdpa_add_debugfs(struct mlx5_vdpa_net *ndev);
+void mlx5_vdpa_remove_debugfs(struct dentry *dbg);
+void mlx5_vdpa_add_rx_flow_table(struct mlx5_vdpa_net *ndev);
+void mlx5_vdpa_remove_rx_flow_table(struct mlx5_vdpa_net *ndev);
+void mlx5_vdpa_add_tirn(struct mlx5_vdpa_net *ndev);
+void mlx5_vdpa_remove_tirn(struct mlx5_vdpa_net *ndev);
+
#endif /* __MLX5_VNET_H__ */