Intel OpenBMC Linux kernel source tree (mirror) https://git.radix-linux.su/BMC/Intel-BMC/linux.git/atom?h=dev-4.18 2018-11-13T19:12:41+00:00 2018-11-13T19:12:41+00:00 Keith Busch keith.busch@intel.com 2018-05-08T16:00:22+00:00 urn:sha1:a5d415583c307818e62a34ca16d37c93e003fb34 commit a7f58b9ecfd3c0f63703ec10f4a592cc38dbd1b8 upstream. Devices with slow interrupt handlers are significantly harming performance when their interrupt vector is shared with a fast device. Create a class code white list for devices with known fast interrupt handlers and let all other devices share a single vector so that they don't interfere with performance. At the moment, only the NVM Express class code is on the list, but more may be added if VMD users desire to use other low-latency devices in these domains. Signed-off-by: Keith Busch <keith.busch@intel.com> [lorenzo.pieralisi@arm.com: changelog] Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Jon Derrick: <jonathan.derrick@intel.com> Cc: "Heitke, Kenneth" <kenneth.heitke@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2018-06-08T12:50:11+00:00 Shawn Lin shawn.lin@rock-chips.com 2018-05-31T01:12:37+00:00 urn:sha1:6e0832fa432ec99c94caee733c8f5851cf85560b Native PCI drivers for root complex devices were originally all in drivers/pci/host/. Some of these devices can also be operated in endpoint mode. Drivers for endpoint mode didn't seem to fit in the "host" directory, so we put both the root complex and endpoint drivers in per-device directories, e.g., drivers/pci/dwc/, drivers/pci/cadence/, etc. These per-device directories contain trivial Kconfig and Makefiles and clutter drivers/pci/. Make a new drivers/pci/controllers/ directory and collect all the device-specific drivers there. No functional change intended. Link: https://lkml.kernel.org/r/1520304202-232891-1-git-send-email-shawn.lin@rock-chips.com Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> [bhelgaas: changelog] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>