From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Kirsher Subject: [net-next v2 11/21] ixgbe: fix AER error handling Date: Tue, 3 Jan 2017 13:07:47 -0800 Message-ID: <20170103210757.38847-12-jeffrey.t.kirsher@intel.com> References: <20170103210757.38847-1-jeffrey.t.kirsher@intel.com> Cc: Emil Tantilov , netdev@vger.kernel.org, nhorman@redhat.com, sassmann@redhat.com, jogreene@redhat.com, guru.anbalagane@oracle.com, Jeff Kirsher To: davem@davemloft.net Return-path: Received: from mga14.intel.com ([192.55.52.115]:25260 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935984AbdACVIN (ORCPT ); Tue, 3 Jan 2017 16:08:13 -0500 In-Reply-To: <20170103210757.38847-1-jeffrey.t.kirsher@intel.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Emil Tantilov Make sure that we free the IRQs in ixgbe_io_error_detected() when responding to an PCIe AER error and also restore them when the interface recovers from it. Previously it was possible to trigger BUG_ON() check in free_msix_irqs() in the case where we call ixgbe_remove() after a failed recovery from AER error because the interrupts were not freed. Signed-off-by: Emil Tantilov Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 476f012..9ca167c 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -10082,7 +10082,7 @@ static pci_ers_result_t ixgbe_io_error_detected(struct pci_dev *pdev, } if (netif_running(netdev)) - ixgbe_down(adapter); + ixgbe_close_suspend(adapter); if (!test_and_set_bit(__IXGBE_DISABLED, &adapter->state)) pci_disable_device(pdev); @@ -10152,10 +10152,12 @@ static void ixgbe_io_resume(struct pci_dev *pdev) } #endif + rtnl_lock(); if (netif_running(netdev)) - ixgbe_up(adapter); + ixgbe_open(netdev); netif_device_attach(netdev); + rtnl_unlock(); } static const struct pci_error_handlers ixgbe_err_handler = { -- 2.9.3