1 files changed, 68 insertions, 0 deletions
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c b/drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c
new file mode 100644
index 000000000000..59951b5abdb7
--- /dev/null
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_debugfs.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) Meta Platforms, Inc. and affiliates. */
+
+#include <linux/debugfs.h>
+#include <linux/pci.h>
+#include <linux/rtnetlink.h>
+#include <linux/seq_file.h>
+
+#include "fbnic.h"
+
+static struct dentry *fbnic_dbg_root;
+
+static int fbnic_dbg_pcie_stats_show(struct seq_file *s, void *v)
+{
+	struct fbnic_dev *fbd = s->private;
+
+	rtnl_lock();
+	fbnic_get_hw_stats(fbd);
+
+	seq_printf(s, "ob_rd_tlp: %llu\n", fbd->hw_stats.pcie.ob_rd_tlp.value);
+	seq_printf(s, "ob_rd_dword: %llu\n",
+		   fbd->hw_stats.pcie.ob_rd_dword.value);
+	seq_printf(s, "ob_wr_tlp: %llu\n", fbd->hw_stats.pcie.ob_wr_tlp.value);
+	seq_printf(s, "ob_wr_dword: %llu\n",
+		   fbd->hw_stats.pcie.ob_wr_dword.value);
+	seq_printf(s, "ob_cpl_tlp: %llu\n",
+		   fbd->hw_stats.pcie.ob_cpl_tlp.value);
+	seq_printf(s, "ob_cpl_dword: %llu\n",
+		   fbd->hw_stats.pcie.ob_cpl_dword.value);
+	seq_printf(s, "ob_rd_no_tag: %llu\n",
+		   fbd->hw_stats.pcie.ob_rd_no_tag.value);
+	seq_printf(s, "ob_rd_no_cpl_cred: %llu\n",
+		   fbd->hw_stats.pcie.ob_rd_no_cpl_cred.value);
+	seq_printf(s, "ob_rd_no_np_cred: %llu\n",
+		   fbd->hw_stats.pcie.ob_rd_no_np_cred.value);
+	rtnl_unlock();
+
+	return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(fbnic_dbg_pcie_stats);
+
+void fbnic_dbg_fbd_init(struct fbnic_dev *fbd)
+{
+	struct pci_dev *pdev = to_pci_dev(fbd->dev);
+	const char *name = pci_name(pdev);
+
+	fbd->dbg_fbd = debugfs_create_dir(name, fbnic_dbg_root);
+	debugfs_create_file("pcie_stats", 0400, fbd->dbg_fbd, fbd,
+			    &fbnic_dbg_pcie_stats_fops);
+}
+
+void fbnic_dbg_fbd_exit(struct fbnic_dev *fbd)
+{
+	debugfs_remove_recursive(fbd->dbg_fbd);
+	fbd->dbg_fbd = NULL;
+}
+
+void fbnic_dbg_init(void)
+{
+	fbnic_dbg_root = debugfs_create_dir(fbnic_driver_name, NULL);
+}
+
+void fbnic_dbg_exit(void)
+{
+	debugfs_remove_recursive(fbnic_dbg_root);
+	fbnic_dbg_root = NULL;
+}