Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

PCI: Restore ACS configuration as part of pci_restore_state()

Browse source 
Previously we did not restore ACS state after a PCIe reset.  This meant
that we could not reassign interfaces after a system suspend because the
D0->D3 transition disabled ACS, and we didn't restore it when going back to
D0.

Restore ACS configuration in pci_restore_state().

[bhelgaas: changelog]
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Allen Kay <allen.m.kay@intel.com>
CC: Chris Wright <chris@sous-sol.org>
CC: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Alexander Duyck 2015-07-07 12:24:35 -07:00 committed by Bjorn Helgaas
parent bc0195aad0
commit ccbc175aad
1 changed files with 3 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/pci/pci.c
View file

@ -1092,6 +1092,9 @@ void pci_restore_state(struct pci_dev *dev)
pci_restore_pcix_state(dev);
pci_restore_msi_state(dev);
/* Restore ACS and IOV configuration state */
pci_enable_acs(dev);
pci_restore_iov_state(dev);
dev->state_saved = false;