From: Rob Herring <robh@kernel.org>
To: Kishon Vijay Abraham I <kishon@ti.com>
Cc: devicetree@vger.kernel.org,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Heiko Stuebner <heiko@sntech.de>, Arnd Bergmann <arnd@arndb.de>,
Jonathan Corbet <corbet@lwn.net>,
Jingoo Han <jingoohan1@gmail.com>,
Shawn Lin <shawn.lin@rock-chips.com>,
linux-doc@vger.kernel.org, linux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
Tom Joseph <tjoseph@cadence.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Gustavo Pimentel <gustavo.pimentel@synopsys.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Andrew Murray <andrew.murray@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 2/7] dt-bindings: PCI: cadence: Add binding to specify max virtual functions
Date: Tue, 14 Jan 2020 19:40:26 -0600 [thread overview]
Message-ID: <20200115014026.GA10726@bogus> (raw)
In-Reply-To: <20191231113534.30405-3-kishon@ti.com>
On Tue, Dec 31, 2019 at 05:05:29PM +0530, Kishon Vijay Abraham I wrote:
> Add binding to specify maximum number of virtual functions that can be
> associated with each physical function.
>
> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
> ---
> .../devicetree/bindings/pci/cdns,cdns-pcie-ep.txt | 2 ++
> .../devicetree/bindings/pci/ti,j721e-pci-ep.yaml | 8 ++++++++
> 2 files changed, 10 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt
> index 4a0475e2ba7e..432578202733 100644
> --- a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt
> +++ b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt
> @@ -9,6 +9,8 @@ Required properties:
>
> Optional properties:
> - max-functions: Maximum number of functions that can be configured (default 1).
> +- max-virtual-functions: Maximum number of virtual functions that can be
> + associated with each physical function.
> - phys: From PHY bindings: List of Generic PHY phandles. One per lane if more
> than one in the list. If only one PHY listed it must manage all lanes.
> - phy-names: List of names to identify the PHY.
> diff --git a/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml b/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml
> index 4621c62016c7..1d4964ba494f 100644
> --- a/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml
> +++ b/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml
> @@ -61,6 +61,12 @@ properties:
> minimum: 1
> maximum: 6
>
> + max-virtual-functions:
> + minItems: 1
> + maxItems: 6
Is there a PCIe spec limit to number of virtual functions per phy
function? Or 2^32 virtual functions is okay.
> + description: As defined in
> + Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt
I suspect this this be a common property.
> +
> dma-coherent:
> description: Indicates that the PCIe IP block can ensure the coherency
>
> @@ -85,6 +91,7 @@ required:
> - cdns,max-outbound-regions
> - dma-coherent
> - max-functions
> + - max-virtual-functions
> - phys
> - phy-names
>
> @@ -107,6 +114,7 @@ examples:
> clock-names = "fck";
> cdns,max-outbound-regions = <16>;
> max-functions = /bits/ 8 <6>;
> + max-virtual-functions = /bits/ 16 <4 4 4 4 0 0>;
> dma-coherent;
> phys = <&serdes0_pcie_link>;
> phy-names = "pcie_phy";
> --
> 2.17.1
>
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next prev parent reply other threads:[~2020-01-15 1:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-31 11:35 [PATCH 0/7] Add SR-IOV support in PCIe Endpoint Core Kishon Vijay Abraham I
2019-12-31 11:35 ` [PATCH 1/7] Documentation: PCI: endpoint/pci-endpoint-cfs: Guide to use SR-IOV Kishon Vijay Abraham I
2019-12-31 11:35 ` [PATCH 2/7] dt-bindings: PCI: cadence: Add binding to specify max virtual functions Kishon Vijay Abraham I
2020-01-15 1:40 ` Rob Herring [this message]
2020-01-16 11:29 ` Kishon Vijay Abraham I
2019-12-31 11:35 ` [PATCH 3/7] PCI: endpoint: Add support to add virtual function in endpoint core Kishon Vijay Abraham I
2019-12-31 11:35 ` [PATCH 4/7] PCI: endpoint: Add support to link a physical function to a virtual function Kishon Vijay Abraham I
2019-12-31 11:35 ` [PATCH 5/7] PCI: endpoint: Add virtual function number in pci_epc ops Kishon Vijay Abraham I
2019-12-31 11:35 ` [PATCH 6/7] PCI: cadence: Add support to configure virtual functions Kishon Vijay Abraham I
2019-12-31 11:35 ` [PATCH 7/7] misc: pci_endpoint_test: Populate sriov_configure ops to configure SR-IOV device Kishon Vijay Abraham I
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