OpenCloudOS-Kernel/drivers/vfio/pci
Alex Williamson cf0d53ba49 vfio/pci: Virtualize Maximum Read Request Size
MRRS defines the maximum read request size a device is allowed to
make.  Drivers will often increase this to allow more data transfer
with a single request.  Completions to this request are bound by the
MPS setting for the bus.  Aside from device quirks (none known), it
doesn't seem to make sense to set an MRRS value less than MPS, yet
this is a likely scenario given that user drivers do not have a
system-wide view of the PCI topology.  Virtualize MRRS such that the
user can set MRRS >= MPS, but use MPS as the floor value that we'll
write to hardware.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2017-10-02 12:39:10 -06:00
..
Kconfig vfio/pci: Intel IGD OpRegion support 2016-02-22 16:10:09 -07:00
Makefile vfio/pci: Intel IGD OpRegion support 2016-02-22 16:10:09 -07:00
vfio_pci.c vfio/pci: Use pci_try_reset_function() on initial open 2017-07-26 14:33:15 -06:00
vfio_pci_config.c vfio/pci: Virtualize Maximum Read Request Size 2017-10-02 12:39:10 -06:00
vfio_pci_igd.c vfio/pci: Intel IGD host and LCP bridge config space access 2016-02-22 16:10:09 -07:00
vfio_pci_intrs.c vfio/pci: Fix integer overflows, bitmask check 2016-10-26 13:49:29 -06:00
vfio_pci_private.h vfio_pci: use pci_alloc_irq_vectors 2016-09-29 13:36:38 -06:00
vfio_pci_rdwr.c vfio-pci: use 32-bit comparisons for register address for gcc-4.5 2016-12-30 08:13:47 -07:00