netdev - Re: [PATCH net-next 09/13] dt-bindings: net: airoha: Add airoha,npu phandle property

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250205-cleaver-evaluator-648c8f0b99bb@spud>
Date: Wed, 5 Feb 2025 19:10:28 +0000
From: Conor Dooley <conor@...nel.org>
To: Lorenzo Bianconi <lorenzo@...nel.org>
Cc: Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Felix Fietkau <nbd@....name>, Sean Wang <sean.wang@...iatek.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, netdev@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
	upstream@...oha.com
Subject: Re: [PATCH net-next 09/13] dt-bindings: net: airoha: Add airoha,npu
 phandle property

On Wed, Feb 05, 2025 at 07:21:28PM +0100, Lorenzo Bianconi wrote:
> Introduce the airoha,npu property for the npu syscon node available on
> EN7581 SoC. The airoha Network Processor Unit (NPU) is used to offload
> network traffic forwarded between Packet Switch Engine (PSE) ports.
> 
> Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
> ---
>  Documentation/devicetree/bindings/net/airoha,en7581-eth.yaml | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/airoha,en7581-eth.yaml b/Documentation/devicetree/bindings/net/airoha,en7581-eth.yaml
> index c578637c5826db4bf470a4d01ac6f3133976ae1a..6388afff64e990a20230b0c4e58534aa61f984da 100644
> --- a/Documentation/devicetree/bindings/net/airoha,en7581-eth.yaml
> +++ b/Documentation/devicetree/bindings/net/airoha,en7581-eth.yaml
> @@ -63,6 +63,12 @@ properties:
>    "#size-cells":
>      const: 0
>  
> +  airoha,npu:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description:
> +      Phandle to the syscon node used to configure the NPU module
> +      used for traffic offloading.

Why do you need a phandle for this, instead of a lookup by compatible?
Do you have multiple instances of this ethernet controller on the
device, that each need to look up a different npu?

> +
>  patternProperties:
>    "^ethernet@[1-4]$":
>      type: object
> @@ -132,6 +138,8 @@ examples:
>                       <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
>                       <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
>  
> +        airoha,npu = <&npu>;
> +
>          #address-cells = <1>;
>          #size-cells = <0>;
>  
> 
> -- 
> 2.48.1
> 

Download attachment "signature.asc" of type "application/pgp-signature" (229 bytes)