linux-kernel - [PATCH v4 0/7] Add SR-IOV support in PCIe Endpoint Core

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Date:   Wed, 10 Mar 2021 21:39:36 +0530
From:   Kishon Vijay Abraham I <kishon@...com>
To:     Kishon Vijay Abraham I <kishon@...com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Jonathan Corbet <corbet@....net>,
        Rob Herring <robh+dt@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Tom Joseph <tjoseph@...ence.com>,
        Jingoo Han <jingoohan1@...il.com>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Marek Vasut <marek.vasut+renesas@...il.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Heiko Stuebner <heiko@...ech.de>,
        Nadeem Athani <nadeem@...ence.com>
CC:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        <linux-pci@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-renesas-soc@...r.kernel.org>,
        <linux-rockchip@...ts.infradead.org>,
        Lokesh Vutla <lokeshvutla@...com>
Subject: [PATCH v4 0/7] Add SR-IOV support in PCIe Endpoint Core

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]

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 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@ti.com
[2] -> http://lore.kernel.org/r/20201112175358.2653-1-kishon@ti.com
[3] -> https://lore.kernel.org/r/20210305050410.9201-1-kishon@ti.com

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  | 251 +++++++++++++++---
 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, 664 insertions(+), 203 deletions(-)

-- 
2.17.1