On Thu, Aug 01, 2019 at 05:06:00PM -0700, sathyanarayanan.kuppusw...@linux.intel.com wrote: > From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppusw...@linux.intel.com> > > Currently, PASID Capability checks are repeated across all PASID API's. > Instead, cache the capability check result in pci_pasid_init() and use > it in other PASID API's. Also, since PASID is a shared resource between > PF/VF, initialize PASID features with default values in pci_pasid_init(). > > Signed-off-by: Kuppuswamy Sathyanarayanan > <sathyanarayanan.kuppusw...@linux.intel.com>
> + * TODO: Since PASID is a shared resource between PF/VF, don't update > + * PASID features in the same API as a per device feature. This comment is slightly misleading (at least, it misled *me* :)) because it hints that PASID might be specific to SR-IOV. But I don't think that's true, so if you keep a comment like this, please reword it along the lines of "for SR-IOV devices, the PF's PASID is shared between the PF and all VFs" so it leaves open the possibility of non-SR-IOV devices using PASID as well. Bjorn
