+++ /dev/null
---- a/drivers/pci/probe.c
-+++ b/drivers/pci/probe.c
-@@ -2309,7 +2309,8 @@ static void pcie_write_mrrs(struct pci_d
- /* In the "safe" case, do not configure the MRRS. There appear to be
- * issues with setting MRRS to 0 on a number of devices.
- */
-- if (pcie_bus_config != PCIE_BUS_PERFORMANCE)
-+ if (pcie_bus_config != PCIE_BUS_PERFORMANCE &&
-+ pcie_bus_config != PCIE_BUS_PEER2PEER)
- return;
-
- /* For Max performance, the MRRS must be set to the largest supported
---- a/include/linux/pci.h
-+++ b/include/linux/pci.h
-@@ -847,7 +847,7 @@ enum pcie_bus_config_types {
- PCIE_BUS_DEFAULT, /* ensure MPS matches upstream bridge */
- PCIE_BUS_SAFE, /* use largest MPS boot-time devices support */
- PCIE_BUS_PERFORMANCE, /* use MPS and MRRS for best performance */
-- PCIE_BUS_PEER2PEER, /* set MPS = 128 for all devices */
-+ PCIE_BUS_PEER2PEER, /* set MPS and MRSS to 128 for all devices */
- };
-
- extern enum pcie_bus_config_types pcie_bus_config;