On Tue, 17 Jul 2018 11:02:03 -0600 Logan Gunthorpe <logang@xxxxxxxxxxxx> wrote: > Intel SPT PCH hardware has an implementation of the ACS bits that > does not comply with the PCI express standard. To deal with this > the existing code has an enable_acs() quirk for the hardware. > > In order to be able to correctly disable the ACS redirect bits for > all hardware we need an analagous quirk to disable those bits. > > This adds the function pci_dev_specific_disable_acs_redir() which > behaves similarly to pci_dev_specific_enable_acs() but uses a new > function pointer for quirks which disables the ACS redirect bits. > > Signed-off-by: Logan Gunthorpe <logang@xxxxxxxxxxxx> > --- > drivers/pci/quirks.c | 78 ++++++++++++++++++++++++++++++++++++++++++++-------- > include/linux/pci.h | 5 ++++ > 2 files changed, 71 insertions(+), 12 deletions(-) Reviewed-by: Alex Williamson <alex.williamson@xxxxxxxxxx>
