From patchwork Mon Apr 11 08:10:16 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Taku Izumi X-Patchwork-Id: 608671 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3qk2yc1ZR4z9ssM for ; Mon, 11 Apr 2016 18:18:48 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753521AbcDKISn (ORCPT ); Mon, 11 Apr 2016 04:18:43 -0400 Received: from mgwym03.jp.fujitsu.com ([211.128.242.42]:38535 "EHLO mgwym03.jp.fujitsu.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753119AbcDKISm (ORCPT ); Mon, 11 Apr 2016 04:18:42 -0400 Received: from yt-mxoi2.gw.nic.fujitsu.com (unknown [192.168.229.69]) by mgwym03.jp.fujitsu.com with smtp id 02e0_307e_da1bb822_7c51_4fca_a3b6_4553199aba03; Mon, 11 Apr 2016 17:18:34 +0900 Received: from m3051.s.css.fujitsu.com (m3051.s.css.fujitsu.com [10.134.21.209]) by yt-mxoi2.gw.nic.fujitsu.com (Postfix) with ESMTP id 8232FAC0133 for ; Mon, 11 Apr 2016 17:18:33 +0900 (JST) Received: from localhost.localdomain (unknown [10.124.196.197]) by m3051.s.css.fujitsu.com (Postfix) with ESMTP id 5FC10C0; Mon, 11 Apr 2016 17:18:33 +0900 (JST) From: Taku Izumi To: davem@davemloft.net, netdev@vger.kernel.org Cc: Taku Izumi Subject: [PATCH net-next 04/11] fjes: Add debugfs entry for statistics Date: Mon, 11 Apr 2016 17:10:16 +0900 Message-Id: <1460362216-15165-1-git-send-email-izumi.taku@jp.fujitsu.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1460362136-14968-1-git-send-email-izumi.taku@jp.fujitsu.com> References: <1460362136-14968-1-git-send-email-izumi.taku@jp.fujitsu.com> X-TM-AS-MML: disable Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This patch introduces debugfs entry named "statistics" for statistics information. You can get net_stats information by reading /sys/kernel/debug/fjes/fjes.N/statistics file. This is useful for debugging. Signed-off-by: Taku Izumi --- drivers/net/fjes/fjes_debugfs.c | 72 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) diff --git a/drivers/net/fjes/fjes_debugfs.c b/drivers/net/fjes/fjes_debugfs.c index d2fd892..b0807c2 100644 --- a/drivers/net/fjes/fjes_debugfs.c +++ b/drivers/net/fjes/fjes_debugfs.c @@ -31,6 +31,72 @@ static struct dentry *fjes_debug_root; +static int fjes_dbg_stats_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_printf(m, "%41s", " "); + for (epidx = 0; epidx < max_epid; epidx++) + seq_printf(m, "%10s%d", + my_epid == epidx ? "(self)EP#" : "EP#", epidx); + seq_printf(m, "\n"); + +#define FJES_DEBUGFS_NET_STATS_ENTRY(X) do { \ + seq_printf(m, "%-41s", #X); \ + for (epidx = 0; epidx < max_epid; epidx++) { \ + if (epidx == my_epid) \ + seq_printf(m, " -"); \ + else \ + seq_printf(m, " %10llu", \ + hw->ep_shm_info[epidx].net_stats.X); \ + } \ + seq_printf(m, "\n"); \ +} while (0) + + FJES_DEBUGFS_NET_STATS_ENTRY(rx_packets); + FJES_DEBUGFS_NET_STATS_ENTRY(tx_packets); + FJES_DEBUGFS_NET_STATS_ENTRY(rx_bytes); + FJES_DEBUGFS_NET_STATS_ENTRY(tx_bytes); + FJES_DEBUGFS_NET_STATS_ENTRY(rx_errors); + FJES_DEBUGFS_NET_STATS_ENTRY(tx_errors); + FJES_DEBUGFS_NET_STATS_ENTRY(rx_dropped); + FJES_DEBUGFS_NET_STATS_ENTRY(tx_dropped); + FJES_DEBUGFS_NET_STATS_ENTRY(multicast); + FJES_DEBUGFS_NET_STATS_ENTRY(collisions); + FJES_DEBUGFS_NET_STATS_ENTRY(rx_length_errors); + FJES_DEBUGFS_NET_STATS_ENTRY(rx_over_errors); + FJES_DEBUGFS_NET_STATS_ENTRY(rx_crc_errors); + FJES_DEBUGFS_NET_STATS_ENTRY(rx_frame_errors); + FJES_DEBUGFS_NET_STATS_ENTRY(rx_fifo_errors); + FJES_DEBUGFS_NET_STATS_ENTRY(rx_missed_errors); + FJES_DEBUGFS_NET_STATS_ENTRY(tx_aborted_errors); + FJES_DEBUGFS_NET_STATS_ENTRY(tx_carrier_errors); + FJES_DEBUGFS_NET_STATS_ENTRY(tx_fifo_errors); + FJES_DEBUGFS_NET_STATS_ENTRY(tx_heartbeat_errors); + FJES_DEBUGFS_NET_STATS_ENTRY(tx_window_errors); + FJES_DEBUGFS_NET_STATS_ENTRY(rx_compressed); + FJES_DEBUGFS_NET_STATS_ENTRY(tx_compressed); + + return 0; +} + +static int fjes_dbg_stats_open(struct inode *inode, struct file *file) +{ + return single_open(file, fjes_dbg_stats_show, inode->i_private); +} + +static const struct file_operations fjes_dbg_stats_fops = { + .owner = THIS_MODULE, + .open = fjes_dbg_stats_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + static int fjes_dbg_status_show(struct seq_file *m, void *v) { struct fjes_adapter *adapter = m->private; @@ -89,6 +155,12 @@ void fjes_dbg_adapter_init(struct fjes_adapter *adapter) if (!pfile) dev_err(&adapter->plat_dev->dev, "debugfs status for %s failed\n", name); + + pfile = debugfs_create_file("statistics", 0444, adapter->dbg_adapter, + adapter, &fjes_dbg_stats_fops); + if (!pfile) + dev_err(&adapter->plat_dev->dev, + "debugfs status for %s failed\n", name); } void fjes_dbg_adapter_exit(struct fjes_adapter *adapter)