From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiri Pirko Subject: [patch net-next-2.6] bonding: allow resetting slave failure counters Date: Wed, 1 Jun 2011 11:40:49 +0200 Message-ID: <1306921249-3623-1-git-send-email-jpirko@redhat.com> Cc: davem@davemloft.net, fubar@us.ibm.com, andy@greyhouse.net To: netdev@vger.kernel.org Return-path: Received: from mx1.redhat.com ([209.132.183.28]:47105 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933179Ab1FAJlK (ORCPT ); Wed, 1 Jun 2011 05:41:10 -0400 Sender: netdev-owner@vger.kernel.org List-ID: This patch allows to reset failure counters for all enslaved devices. Signed-off-by: Jiri Pirko --- Documentation/networking/bonding.txt | 7 +++++++ drivers/net/bonding/bond_sysfs.c | 27 +++++++++++++++++++++++++++ 2 files changed, 34 insertions(+), 0 deletions(-) diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt index 675612f..2f51d73 100644 --- a/Documentation/networking/bonding.txt +++ b/Documentation/networking/bonding.txt @@ -782,6 +782,13 @@ resend_igmp This option was added for bonding version 3.7.0. +reset_failure_counters + + This write-only control file will zero failure counters for + all slaves. Note there is no appropriate module parameter for this + since it would not make much sense. + Write any value to perform reset. + 3. Configuring Bonding Devices ============================== diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index 88fcb25..9b45164 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -1572,6 +1572,32 @@ out: static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, bonding_show_resend_igmp, bonding_store_resend_igmp); +static ssize_t +bonding_store_reset_failure_counters(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct slave *slave; + int i; + struct bonding *bond = to_bond(d); + + if (!rtnl_trylock()) + return restart_syscall(); + + read_lock(&bond->lock); + pr_info("%s: Resetting counters.\n", bond->dev->name); + bond_for_each_slave(bond, slave, i) + slave->link_failure_count = 0; + read_unlock(&bond->lock); + + rtnl_unlock(); + + return count; +} + +static DEVICE_ATTR(reset_failure_counters, S_IWUSR, NULL, + bonding_store_reset_failure_counters); + static struct attribute *per_bond_attrs[] = { &dev_attr_slaves.attr, &dev_attr_mode.attr, @@ -1600,6 +1626,7 @@ static struct attribute *per_bond_attrs[] = { &dev_attr_queue_id.attr, &dev_attr_all_slaves_active.attr, &dev_attr_resend_igmp.attr, + &dev_attr_reset_failure_counters.attr, NULL, }; -- 1.7.4.4