From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Kirsher Subject: [net-next PATCH 15/26] igb: remove redundant timer updates and cleanup watchdog_task Date: Sat, 07 Feb 2009 01:19:50 -0800 Message-ID: <20090207091950.15697.29830.stgit@lost.foo-projects.org> References: <20090207091504.15697.26667.stgit@lost.foo-projects.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, jeff@garzik.org, gospo@redhat.com, Alexander Duyck , Jeff Kirsher To: davem@davemloft.net Return-path: Received: from qmta06.westchester.pa.mail.comcast.net ([76.96.62.56]:55536 "EHLO QMTA06.westchester.pa.mail.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752373AbZBGJUK (ORCPT ); Sat, 7 Feb 2009 04:20:10 -0500 In-Reply-To: <20090207091504.15697.26667.stgit@lost.foo-projects.org> Sender: netdev-owner@vger.kernel.org List-ID: From: Alexander Duyck The igb watchdog task is modifying the watchdog timer twice duing a single run. It only needs to be called once to reschedule itself for 2 seconds from the last time it ran. In addition I removed the allocation of the mac_info structure since it is only called twice and is easier to access via the e1000_hw struct. Signed-off-by: Alexander Duyck Signed-off-by: Jeff Kirsher --- drivers/net/igb/igb_main.c | 10 +++++----- 1 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 3bf560f..cbb3858 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -2314,13 +2314,10 @@ static void igb_watchdog_task(struct work_struct *work) struct igb_adapter *adapter = container_of(work, struct igb_adapter, watchdog_task); struct e1000_hw *hw = &adapter->hw; - struct net_device *netdev = adapter->netdev; struct igb_ring *tx_ring = adapter->tx_ring; - struct e1000_mac_info *mac = &adapter->hw.mac; u32 link; u32 eics = 0; - s32 ret_val; int i; link = igb_has_link(adapter); @@ -2365,6 +2362,7 @@ static void igb_watchdog_task(struct work_struct *work) netif_carrier_on(netdev); netif_tx_wake_all_queues(netdev); + /* link state has changed, schedule phy info update */ if (!test_bit(__IGB_DOWN, &adapter->state)) mod_timer(&adapter->phy_info_timer, round_jiffies(jiffies + 2 * HZ)); @@ -2378,6 +2376,8 @@ static void igb_watchdog_task(struct work_struct *work) netdev->name); netif_carrier_off(netdev); netif_tx_stop_all_queues(netdev); + + /* link state has changed, schedule phy info update */ if (!test_bit(__IGB_DOWN, &adapter->state)) mod_timer(&adapter->phy_info_timer, round_jiffies(jiffies + 2 * HZ)); @@ -2387,9 +2387,9 @@ static void igb_watchdog_task(struct work_struct *work) link_up: igb_update_stats(adapter); - mac->tx_packet_delta = adapter->stats.tpt - adapter->tpt_old; + hw->mac.tx_packet_delta = adapter->stats.tpt - adapter->tpt_old; adapter->tpt_old = adapter->stats.tpt; - mac->collision_delta = adapter->stats.colc - adapter->colc_old; + hw->mac.collision_delta = adapter->stats.colc - adapter->colc_old; adapter->colc_old = adapter->stats.colc; adapter->gorc = adapter->stats.gorc - adapter->gorc_old;