From patchwork Fri Dec 3 02:55:16 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Taku Izumi X-Patchwork-Id: 74086 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 B15F4B70A9 for ; Fri, 3 Dec 2010 13:55:30 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758420Ab0LCCz0 (ORCPT ); Thu, 2 Dec 2010 21:55:26 -0500 Received: from fgwmail7.fujitsu.co.jp ([192.51.44.37]:51128 "EHLO fgwmail7.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758416Ab0LCCzZ (ORCPT ); Thu, 2 Dec 2010 21:55:25 -0500 Received: from m1.gw.fujitsu.co.jp ([10.0.50.71]) by fgwmail7.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id oB32tO5D016132 for (envelope-from izumi.taku@jp.fujitsu.com); Fri, 3 Dec 2010 11:55:24 +0900 Received: from smail (m1 [127.0.0.1]) by outgoing.m1.gw.fujitsu.co.jp (Postfix) with ESMTP id 62B0645DE58 for ; Fri, 3 Dec 2010 11:55:24 +0900 (JST) Received: from s1.gw.fujitsu.co.jp (s1.gw.fujitsu.co.jp [10.0.50.91]) by m1.gw.fujitsu.co.jp (Postfix) with ESMTP id 43D8945DE55 for ; Fri, 3 Dec 2010 11:55:24 +0900 (JST) Received: from s1.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s1.gw.fujitsu.co.jp (Postfix) with ESMTP id 37B351DB804B for ; Fri, 3 Dec 2010 11:55:24 +0900 (JST) Received: from m106.s.css.fujitsu.com (m106.s.css.fujitsu.com [10.249.87.106]) by s1.gw.fujitsu.co.jp (Postfix) with ESMTP id 003F81DB8040 for ; Fri, 3 Dec 2010 11:55:24 +0900 (JST) Received: from m106.css.fujitsu.com (m106 [127.0.0.1]) by m106.s.css.fujitsu.com (Postfix) with ESMTP id C6ABB5B8FF8; Fri, 3 Dec 2010 11:55:23 +0900 (JST) Received: from [127.0.0.1] (unknown [10.124.101.102]) by m106.s.css.fujitsu.com (Postfix) with ESMTP id 5E2C55B8FC9; Fri, 3 Dec 2010 11:55:23 +0900 (JST) X-SecurityPolicyCheck-FJ: OK by FujitsuOutboundMailChecker v1.3.1 Received: from DEUCALION2[10.124.101.102] by DEUCALION2 (FujitsuOutboundMailChecker v1.3.1/9992[10.124.101.102]); Fri, 03 Dec 2010 11:55:22 +0900 (JST) Message-ID: <4CF85C14.5010909@jp.fujitsu.com> Date: Fri, 03 Dec 2010 11:55:16 +0900 From: Taku Izumi User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; ja; rv:1.9.1.5) Gecko/20091204 Thunderbird/3.0 MIME-Version: 1.0 To: "netdev@vger.kernel.org" , Jay Vosburgh CC: eric.dumazet@gmail.com, shemminger@vyatta.com Subject: [PATCH 2/2] bonding: add the debugfs interface to see RLB hash table References: <4CF85B43.2030407@jp.fujitsu.com> In-Reply-To: <4CF85B43.2030407@jp.fujitsu.com> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This patch provices the debugfs interface to see RLB hash table like the following: # cat /sys/kernel/debug/bonding/bond0/rlb_hash_table SourceIP DestinationIP Destination MAC DEV 10.124.196.205 10.124.196.205 ff:ff:ff:ff:ff:ff eth4 10.124.196.205 10.124.196.81 00:19:99:XX:XX:XX eth3 10.124.196.205 10.124.196.1 00:21:d8:XX:XX:XX eth0 This is helpful to check if the receive load balancing works as expected. Signed-off-by: Taku Izumi --- drivers/net/bonding/bond_debugfs.c | 51 +++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Index: net-next/drivers/net/bonding/bond_debugfs.c =================================================================== --- net-next.orig/drivers/net/bonding/bond_debugfs.c +++ net-next/drivers/net/bonding/bond_debugfs.c @@ -4,6 +4,7 @@ #include #include "bonding.h" +#include "bond_alb.h" #ifdef CONFIG_DEBUG_FS @@ -12,6 +13,53 @@ static struct dentry *bonding_debug_root; +/* + * Show RLB hash table + */ +#define RLB_NULL_INDEX 0xffffffff +static int bond_debug_rlb_hash_show(struct seq_file *m, void *v) +{ + struct bonding *bond = m->private; + struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond)); + struct rlb_client_info *client_info; + u32 hash_index; + + if (bond->params.mode != BOND_MODE_ALB) + return 0; + + seq_printf(m, "SourceIP DestinationIP " + "Destination MAC DEV\n"); + + spin_lock_bh(&(BOND_ALB_INFO(bond).rx_hashtbl_lock)); + + hash_index = bond_info->rx_hashtbl_head; + for (; hash_index != RLB_NULL_INDEX; hash_index = client_info->next) { + client_info = &(bond_info->rx_hashtbl[hash_index]); + seq_printf(m, "%-15pI4 %-15pI4 %-17pM %s\n", + &client_info->ip_src, + &client_info->ip_dst, + &client_info->mac_dst, + client_info->slave->dev->name); + } + + spin_unlock_bh(&(BOND_ALB_INFO(bond).rx_hashtbl_lock)); + + return 0; +} + +static int bond_debug_rlb_hash_open(struct inode *inode, struct file *file) +{ + return single_open(file, bond_debug_rlb_hash_show, inode->i_private); +} + +static const struct file_operations bond_debug_rlb_hash_fops = { + .owner = THIS_MODULE, + .open = bond_debug_rlb_hash_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + void bond_debug_register(struct bonding *bond) { if (!bonding_debug_root) @@ -25,6 +73,9 @@ void bond_debug_register(struct bonding bond->dev->name); return; } + + debugfs_create_file("rlb_hash_table", 0400, bond->debug_dir, + bond, &bond_debug_rlb_hash_fops); } void bond_debug_unregister(struct bonding *bond)