From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Kirsher Subject: [net-next-2.6 PATCH] igb: add support for device reset interrupt Date: Thu, 07 Jan 2010 19:41:00 -0800 Message-ID: <20100108034058.31805.96712.stgit@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, gospo@redhat.com, Alexander Duyck , Jeff Kirsher To: davem@davemloft.net Return-path: Received: from qmta08.emeryville.ca.mail.comcast.net ([76.96.30.80]:58528 "EHLO QMTA08.emeryville.ca.mail.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750887Ab0AHDlR (ORCPT ); Thu, 7 Jan 2010 22:41:17 -0500 Sender: netdev-owner@vger.kernel.org List-ID: From: Alexander Duyck This patch adds support for the global device reset interrupt. Without this change the drivers will report tx hangs on all ports when a global device reset occurs. Signed-off-by: Alexander Duyck Signed-off-by: Jeff Kirsher --- drivers/net/igb/igb_main.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 933c64f..a354375 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -4105,6 +4105,9 @@ static irqreturn_t igb_msix_other(int irq, void *data) u32 icr = rd32(E1000_ICR); /* reading ICR causes bit 31 of EICR to be cleared */ + if (icr & E1000_ICR_DRSTA) + schedule_work(&adapter->reset_task); + if (icr & E1000_ICR_DOUTSYNC) { /* HW is reporting DMA is out of sync */ adapter->stats.doosync++; @@ -4728,6 +4731,9 @@ static irqreturn_t igb_intr_msi(int irq, void *data) igb_write_itr(q_vector); + if (icr & E1000_ICR_DRSTA) + schedule_work(&adapter->reset_task); + if (icr & E1000_ICR_DOUTSYNC) { /* HW is reporting DMA is out of sync */ adapter->stats.doosync++; @@ -4767,6 +4773,9 @@ static irqreturn_t igb_intr(int irq, void *data) if (!(icr & E1000_ICR_INT_ASSERTED)) return IRQ_NONE; + if (icr & E1000_ICR_DRSTA) + schedule_work(&adapter->reset_task); + if (icr & E1000_ICR_DOUTSYNC) { /* HW is reporting DMA is out of sync */ adapter->stats.doosync++;