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-rw-r--r--drivers/net/fjes/fjes_debugfs.c79
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 */