netdev - [net-next 14/21] ixgbevf: restore hw

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Message-Id: <20161230093341.14674-15-jeffrey.t.kirsher@intel.com>
Date:   Fri, 30 Dec 2016 01:33:34 -0800
From:   Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:     davem@...emloft.net
Cc:     Emil Tantilov <emil.s.tantilov@...el.com>, netdev@...r.kernel.org,
        nhorman@...hat.com, sassmann@...hat.com, jogreene@...hat.com,
        guru.anbalagane@...cle.com,
        Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 14/21] ixgbevf: restore hw_addr on resume or error

From: Emil Tantilov <emil.s.tantilov@...el.com>

Restore adapter->hw.hw_addr after handling an error, or a resume
operation to make sure we can access the registers.

Signed-off-by: Emil Tantilov <emil.s.tantilov@...el.com>
Tested-by: Andrew Bowers <andrewx.bowers@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 7dfd1df..544307c 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -3851,6 +3851,8 @@ static int ixgbevf_resume(struct pci_dev *pdev)
 		dev_err(&pdev->dev, "Cannot enable PCI device from suspend\n");
 		return err;
 	}
+
+	adapter->hw.hw_addr = adapter->io_addr;
 	smp_mb__before_atomic();
 	clear_bit(__IXGBEVF_DISABLED, &adapter->state);
 	pci_set_master(pdev);
@@ -4285,6 +4287,7 @@ static pci_ers_result_t ixgbevf_io_slot_reset(struct pci_dev *pdev)
 		return PCI_ERS_RESULT_DISCONNECT;
 	}
 
+	adapter->hw.hw_addr = adapter->io_addr;
 	smp_mb__before_atomic();
 	clear_bit(__IXGBEVF_DISABLED, &adapter->state);
 	pci_set_master(pdev);
-- 
2.9.3