netdev - [net-next 08/15] ice: save PCI state in probe

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Message-Id: <20191106004620.10416-9-jeffrey.t.kirsher@intel.com>
Date:   Tue,  5 Nov 2019 16:46:13 -0800
From:   Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:     davem@...emloft.net
Cc:     Michal Swiatkowski <michal.swiatkowski@...el.com>,
        netdev@...r.kernel.org, nhorman@...hat.com, sassmann@...hat.com,
        Andrew Bowers <andrewx.bowers@...el.com>,
        Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 08/15] ice: save PCI state in probe

From: Michal Swiatkowski <michal.swiatkowski@...el.com>

Save state to correct recovery memory and I/O BARs address
after PCI bus reset. Without this after reset kernel can't
read device registers.

Signed-off-by: Michal Swiatkowski <michal.swiatkowski@...el.com>
Tested-by: Andrew Bowers <andrewx.bowers@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 5b23a940bf65..21593a45bec4 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -3287,6 +3287,8 @@ ice_probe(struct pci_dev *pdev, const struct pci_device_id __always_unused *ent)
 
 	hw = &pf->hw;
 	hw->hw_addr = pcim_iomap_table(pdev)[ICE_BAR0];
+	pci_save_state(pdev);
+
 	hw->back = pf;
 	hw->vendor_id = pdev->vendor;
 	hw->device_id = pdev->device;
-- 
2.21.0