Patch series *) Adds support to add virtual functions to enable endpoint controller which supports SR-IOV capability *) Add support in Cadence endpoint driver to configure virtual functions *) Enable pci_endpoint_test driver to create pci_device for virtual functions v1 of the patch series can be found at [1] v2 of the patch series can be found at [2] v3 of the patch series can be found at [3] v4 of the patch series can be found at [4] Here both physical functions and virtual functions use the same pci_endpoint_test driver and existing pcitest utility can be used to test virtual functions as well. Changes from v4: *) Added a fix in Cadence driver which was overwriting BAR configuration of physical function. *) Didn't include Tom's Acked-by since Cadence driver is modified in this revision. Changes from v3: *) Fixed Rob's comment and added his Reviewed-by as suggested by him. Changes from v2: *) Fixed DT binding documentation comment by Rob *) Fixed the error check in pci-epc-core.c Changes from v1: *) Re-based and Re-worked to latest kernel 5.10.0-rc2+ (now has generic binding for EP) [1] -> http://lore.kernel.org/r/20191231113534.30405-1-kishon@xxxxxx [2] -> http://lore.kernel.org/r/20201112175358.2653-1-kishon@xxxxxx [3] -> https://lore.kernel.org/r/20210305050410.9201-1-kishon@xxxxxx [4] -> http://lore.kernel.org/r/20210310160943.7606-1-kishon@xxxxxx Kishon Vijay Abraham I (7): dt-bindings: PCI: pci-ep: Add binding to specify virtual function PCI: endpoint: Add support to add virtual function in endpoint core PCI: endpoint: Add support to link a physical function to a virtual function PCI: endpoint: Add virtual function number in pci_epc ops PCI: cadence: Add support to configure virtual functions misc: pci_endpoint_test: Populate sriov_configure ops to configure SR-IOV device Documentation: PCI: endpoint/pci-endpoint-cfs: Guide to use SR-IOV .../PCI/endpoint/pci-endpoint-cfs.rst | 12 +- .../devicetree/bindings/pci/pci-ep.yaml | 7 + drivers/misc/pci_endpoint_test.c | 1 + .../pci/controller/cadence/pcie-cadence-ep.c | 285 ++++++++++++++---- drivers/pci/controller/cadence/pcie-cadence.h | 7 + .../pci/controller/dwc/pcie-designware-ep.c | 36 +-- drivers/pci/controller/pcie-rcar-ep.c | 19 +- drivers/pci/controller/pcie-rockchip-ep.c | 18 +- drivers/pci/endpoint/functions/pci-epf-ntb.c | 79 +++-- drivers/pci/endpoint/functions/pci-epf-test.c | 66 ++-- drivers/pci/endpoint/pci-ep-cfs.c | 24 ++ drivers/pci/endpoint/pci-epc-core.c | 130 +++++--- drivers/pci/endpoint/pci-epf-core.c | 144 ++++++++- include/linux/pci-epc.h | 57 ++-- include/linux/pci-epf.h | 16 +- 15 files changed, 684 insertions(+), 217 deletions(-) -- 2.17.1
