1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/net/fjes/fjes_debugfs.c b/drivers/net/fjes/fjes_debugfs.c
new file mode 100644
index 000000000..2c2095e7c
--- /dev/null
+++ b/drivers/net/fjes/fjes_debugfs.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  FUJITSU Extended Socket Network Device driver
+ *  Copyright (c) 2015-2016 FUJITSU LIMITED
+ */
+
+/* debugfs support for fjes driver */
+
+#ifdef CONFIG_DEBUG_FS
+
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/platform_device.h>
+
+#include "fjes.h"
+
+static struct dentry *fjes_debug_root;
+
+static const char * const ep_status_string[] = {
+	"unshared",
+	"shared",
+	"waiting",
+	"complete",
+};
+
+static int fjes_dbg_status_show(struct seq_file *m, void *v)
+{
+	struct fjes_adapter *adapter = m->private;
+	struct fjes_hw *hw = &adapter->hw;
+	int max_epid = hw->max_epid;
+	int my_epid = hw->my_epid;
+	int epidx;
+
+	seq_puts(m, "EPID\tSTATUS           SAME_ZONE        CONNECTED\n");
+	for (epidx = 0; epidx < max_epid; epidx++) {
+		if (epidx == my_epid) {
+			seq_printf(m, "ep%d\t%-16c %-16c %-16c\n",
+				   epidx, '-', '-', '-');
+		} else {
+			seq_printf(m, "ep%d\t%-16s %-16c %-16c\n",
+				   epidx,
+				   ep_status_string[fjes_hw_get_partner_ep_status(hw, epidx)],
+				   fjes_hw_epid_is_same_zone(hw, epidx) ? 'Y' : 'N',
+				   fjes_hw_epid_is_shared(hw->hw_info.share, epidx) ? 'Y' : 'N');
+		}
+	}
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(fjes_dbg_status);
+
+void fjes_dbg_adapter_init(struct fjes_adapter *adapter)
+{
+	const char *name = dev_name(&adapter->plat_dev->dev);
+
+	adapter->dbg_adapter = debugfs_create_dir(name, fjes_debug_root);
+
+	debugfs_create_file("status", 0444, adapter->dbg_adapter, adapter,
+			    &fjes_dbg_status_fops);
+}
+
+void fjes_dbg_adapter_exit(struct fjes_adapter *adapter)
+{
+	debugfs_remove_recursive(adapter->dbg_adapter);
+	adapter->dbg_adapter = NULL;
+}
+
+void fjes_dbg_init(void)
+{
+	fjes_debug_root = debugfs_create_dir(fjes_driver_name, NULL);
+}
+
+void fjes_dbg_exit(void)
+{
+	debugfs_remove_recursive(fjes_debug_root);
+	fjes_debug_root = NULL;
+}
+
+#endif /* CONFIG_DEBUG_FS */