netdev - Re: [PATCH net-next 01/16] dt-bindings: net: dwmac: Validate PBL for all IP-cores

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Message-ID: <20230314150657.ytgyegi7qlwao6px@mobilestation>
Date:   Tue, 14 Mar 2023 18:06:57 +0300
From:   Serge Semin <fancer.lancer@...il.com>
To:     Rob Herring <robh@...nel.org>
Cc:     Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
        Jakub Kicinski <kuba@...nel.org>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S. Miller" <davem@...emloft.net>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Paolo Abeni <pabeni@...hat.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Biao Huang <biao.huang@...iatek.com>, netdev@...r.kernel.org,
        Christian Marangi <ansuelsmth@...il.com>,
        Yang Yingliang <yangyingliang@...wei.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Richard Cochran <richardcochran@...il.com>,
        linux-arm-kernel@...ts.infradead.org,
        Rob Herring <robh+dt@...nel.org>,
        linux-stm32@...md-mailman.stormreply.com
Subject: Re: [PATCH net-next 01/16] dt-bindings: net: dwmac: Validate PBL for
 all IP-cores

On Tue, Mar 14, 2023 at 09:10:19AM -0500, Rob Herring wrote:
> 
> On Tue, 14 Mar 2023 01:50:48 +0300, Serge Semin wrote:
> > Indeed the maximum DMA burst length can be programmed not only for DW
> > xGMACs, Allwinner EMACs and Spear SoC GMAC, but in accordance with [1]
> > for Generic DW *MAC IP-cores. Moreover the STMMAC set of drivers parse
> > the property and then apply the configuration for all supported DW MAC
> > devices. All of that makes the property being available for all IP-cores
> > the bindings supports. Let's make sure the PBL-related properties are
> > validated for all of them by the common DW MAC DT schema.
> > 
> > [1] DesignWare Cores Ethernet MAC Universal Databook, Revision 3.73a,
> >     October 2013, p. 380.
> > 
> > Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>
> > Reviewed-by: Rob Herring <robh@...nel.org>
> > 
> > ---
> > 
> > Changelog v1:
> > - Use correct syntax of the JSON pointers, so the later would begin
> >   with a '/' after the '#'.
> > ---
> >  .../devicetree/bindings/net/snps,dwmac.yaml   | 77 +++++++------------
> >  1 file changed, 26 insertions(+), 51 deletions(-)
> > 
> 
> My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
> on your patch (DT_CHECKER_FLAGS is new in v5.13):
> 
> yamllint warnings/errors:
> 
> dtschema/dtc warnings/errors:
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/mediatek-dwmac.example.dtb: ethernet@...1c000: snps,txpbl:0:0: 1 is not one of [2, 4, 8]
> 	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/mediatek-dwmac.example.dtb: ethernet@...1c000: snps,rxpbl:0:0: 1 is not one of [2, 4, 8]
> 	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/mediatek-dwmac.example.dtb: ethernet@...1c000: snps,txpbl:0:0: 1 is not one of [2, 4, 8]
> 	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/mediatek-dwmac.yaml
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/mediatek-dwmac.example.dtb: ethernet@...1c000: snps,rxpbl:0:0: 1 is not one of [2, 4, 8]
> 	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/mediatek-dwmac.yaml
> /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/mediatek-dwmac.example.dtb: ethernet@...1c000: Unevaluated properties are not allowed ('interrupt-names', 'interrupts', 'mac-address', 'phy-mode', 'reg', 'snps,reset-delays-us', 'snps,reset-gpio', 'snps,rxpbl', 'snps,txpbl' were unexpected)
> 	From schema: /builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/mediatek-dwmac.yaml

Oops, on rebasing my work from older kernel I missed that the PBL
properties constraints have already been extended. I'll drop the next
patch in the series then and fix this one so the already defined
constraints would be preserved.

-Serge(y)

> 
> doc reference errors (make refcheckdocs):
> 
> See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230313225103.30512-2-Sergey.Semin@baikalelectronics.ru
> 
> The base for the series is generally the latest rc1. A different dependency
> should be noted in *this* patch.
> 
> If you already ran 'make dt_binding_check' and didn't see the above
> error(s), then make sure 'yamllint' is installed and dt-schema is up to
> date:
> 
> pip3 install dtschema --upgrade
> 
> Please check and re-submit after running the above command yourself. Note
> that DT_SCHEMA_FILES can be set to your schema file to speed up checking
> your schema. However, it must be unset to test all examples with your schema.
>