From: Michal Swiatkowski <michal.swiatkowski@intel.com>
Date: Wed, 9 Oct 2019 14:09:46 +0000 (-0700)
Subject: ice: save PCI state in probe
X-Git-Tag: v5.5-rc1~174^2~191^2~7
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4e56802e0ef3ed92cb28196ebd91d8fa6455c45f;p=thirdparty%2Fkernel%2Flinux.git

ice: save PCI state in probe

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@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index f29f5753f977a..76c5324268c5d 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -3152,6 +3152,8 @@ 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;