netdev - Re: [PATCH net-next 09/10] dt-bindings: net: snps,dwmac: add per channel irq support

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Date: Wed, 26 Jul 2023 09:24:39 -0600
From: Rob Herring <robh@...nel.org>
To: Jisheng Zhang <jszhang@...nel.org>
Cc: "David S . Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, Giuseppe Cavallaro <peppe.cavallaro@...com>, Alexandre Torgue <alexandre.torgue@...s.st.com>, Jose Abreu <joabreu@...opsys.com>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH net-next 09/10] dt-bindings: net: snps,dwmac: add per
 channel irq support

On Mon, Jul 24, 2023 at 12:10:28AM +0800, Jisheng Zhang wrote:
> The IP supports per channel interrupt, add support for this usage case.
> 
> Signed-off-by: Jisheng Zhang <jszhang@...nel.org>
> ---
>  .../devicetree/bindings/net/snps,dwmac.yaml   | 23 +++++++++++++++++++
>  1 file changed, 23 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> index bb80ca205d26..525210c2c06c 100644
> --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> @@ -101,6 +101,11 @@ properties:
>      minItems: 1
>      maxItems: 2
>  
> +  snps,per-channel-interrupt:
> +    $ref: /schemas/types.yaml#/definitions/flag
> +    description:
> +      Indicates that Rx and Tx complete will generate a unique interrupt for each channel

Can't you determine this based on the number of interrupts or interrupt 
names?

> +
>    interrupts:
>      minItems: 1
>      items:
> @@ -109,6 +114,8 @@ properties:
>        - description: The interrupt that occurs when Rx exits the LPI state
>        - description: The interrupt that occurs when Safety Feature Correctible Errors happen
>        - description: The interrupt that occurs when Safety Feature Uncorrectible Errors happen
> +      - description: All of the rx per-channel interrupts
> +      - description: All of the tx per-channel interrupts

You added 2 interrupts here and...

>  
>    interrupt-names:
>      minItems: 1
> @@ -118,6 +125,22 @@ properties:
>        - const: eth_lpi
>        - const: sfty_ce_irq
>        - const: sfty_ue_irq
> +      - const: rx0
> +      - const: rx1
> +      - const: rx2
> +      - const: rx3
> +      - const: rx4
> +      - const: rx5
> +      - const: rx6
> +      - const: rx7
> +      - const: tx0
> +      - const: tx1
> +      - const: tx2
> +      - const: tx3
> +      - const: tx4
> +      - const: tx5
> +      - const: tx6
> +      - const: tx7

And 16 here?

>  
>    clocks:
>      minItems: 1
> -- 
> 2.40.1
>