diff options
Diffstat (limited to 'drivers/net/ethernet/amazon/ena/ena_debugfs.c')
| -rw-r--r-- | drivers/net/ethernet/amazon/ena/ena_debugfs.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amazon/ena/ena_debugfs.c b/drivers/net/ethernet/amazon/ena/ena_debugfs.c new file mode 100644 index 000000000000..46ed80986724 --- /dev/null +++ b/drivers/net/ethernet/amazon/ena/ena_debugfs.c @@ -0,0 +1,62 @@ +// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB +/* Copyright (c) Amazon.com, Inc. or its affiliates. + * All rights reserved. + */ + +#ifdef CONFIG_DEBUG_FS + +#include <linux/seq_file.h> +#include <linux/pci.h> +#include "ena_debugfs.h" +#include "ena_phc.h" + +static int phc_stats_show(struct seq_file *file, void *priv) +{ + struct ena_adapter *adapter = file->private; + + if (!ena_phc_is_active(adapter)) + return 0; + + seq_printf(file, + "phc_cnt: %llu\n", + adapter->ena_dev->phc.stats.phc_cnt); + seq_printf(file, + "phc_exp: %llu\n", + adapter->ena_dev->phc.stats.phc_exp); + seq_printf(file, + "phc_skp: %llu\n", + adapter->ena_dev->phc.stats.phc_skp); + seq_printf(file, + "phc_err_dv: %llu\n", + adapter->ena_dev->phc.stats.phc_err_dv); + seq_printf(file, + "phc_err_ts: %llu\n", + adapter->ena_dev->phc.stats.phc_err_ts); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(phc_stats); + +void ena_debugfs_init(struct net_device *dev) +{ + struct ena_adapter *adapter = netdev_priv(dev); + + adapter->debugfs_base = + debugfs_create_dir(dev_name(&adapter->pdev->dev), NULL); + + debugfs_create_file("phc_stats", + 0400, + adapter->debugfs_base, + adapter, + &phc_stats_fops); +} + +void ena_debugfs_terminate(struct net_device *dev) +{ + struct ena_adapter *adapter = netdev_priv(dev); + + debugfs_remove_recursive(adapter->debugfs_base); +} + +#endif /* CONFIG_DEBUG_FS */ |