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Date: Sat, 29 Oct 2022 23:13:20 +0200
From: Lorenzo Bianconi <lorenzo@...nel.org>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: netdev@...r.kernel.org, nbd@....name, john@...ozen.org,
sean.wang@...iatek.com, Mark-MC.Lee@...iatek.com,
davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
pabeni@...hat.com, matthias.bgg@...il.com,
linux-mediatek@...ts.infradead.org, lorenzo.bianconi@...hat.com,
Bo.Jiao@...iatek.com, sujuan.chen@...iatek.com,
ryder.Lee@...iatek.com, evelyn.tsai@...iatek.com,
devicetree@...r.kernel.org, robh@...nel.org, daniel@...rotopia.org
Subject: Re: [PATCH v2 net-next 1/6] arm64: dts: mediatek: mt7986: add
support for RX Wireless Ethernet Dispatch
> On 23/10/2022 14:28, Lorenzo Bianconi wrote:
> > Similar to TX Wireless Ethernet Dispatch, introduce RX Wireless Ethernet
> > Dispatch to offload traffic received by the wlan interface to lan/wan
> > one.
>
> Please use scripts/get_maintainers.pl to get a list of necessary people
> and lists to CC. It might happen, that command when run on an older
> kernel, gives you outdated entries. Therefore please be sure you base
> your patches on recent Linux kernel.
Hi Krzysztof,
Ack, sorry. I will do it in v3.
>
> >
> > Co-developed-by: Sujuan Chen <sujuan.chen@...iatek.com>
> > Signed-off-by: Sujuan Chen <sujuan.chen@...iatek.com>
> > Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
> > ---
> > arch/arm64/boot/dts/mediatek/mt7986a.dtsi | 73 +++++++++++++++++++++++
> > 1 file changed, 73 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
> > index 72e0d9722e07..e3b05280dcb6 100644
> > --- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
> > +++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
> > @@ -8,6 +8,7 @@
> > #include <dt-bindings/interrupt-controller/arm-gic.h>
> > #include <dt-bindings/clock/mt7986-clk.h>
> > #include <dt-bindings/reset/mt7986-resets.h>
> > +#include <dt-bindings/reset/ti-syscon.h>
> >
> > / {
> > interrupt-parent = <&gic>;
> > @@ -76,6 +77,31 @@ wmcpu_emi: wmcpu-reserved@...00000 {
> > no-map;
> > reg = <0 0x4fc00000 0 0x00100000>;
> > };
> > +
> > + wo_emi0: wo-emi0@...00000 {
> > + reg = <0 0x4fd00000 0 0x40000>;
> > + no-map;
> > + };
> > +
> > + wo_emi1: wo-emi1@...40000 {
> > + reg = <0 0x4fd40000 0 0x40000>;
> > + no-map;
> > + };
> > +
> > + wo_ilm0: wo-ilm0@...e0000 {
> > + reg = <0 0x151e0000 0 0x8000>;
> > + no-map;
> > + };
> > +
> > + wo_ilm1: wo-ilm1@...f0000 {
> > + reg = <0 0x151f0000 0 0x8000>;
> > + no-map;
> > + };
> > +
> > + wo_data: wo-data@...80000 {
> > + reg = <0 0x4fd80000 0 0x240000>;
> > + no-map;
> > + };
> > };
> >
> > timer {
> > @@ -226,6 +252,12 @@ ethsys: syscon@...00000 {
> > reg = <0 0x15000000 0 0x1000>;
> > #clock-cells = <1>;
> > #reset-cells = <1>;
> > +
> > + ethsysrst: reset-controller {
> > + compatible = "ti,syscon-reset";
> > + #reset-cells = <1>;
> > + ti,reset-bits = <0x34 4 0x34 4 0x34 4 (ASSERT_SET | DEASSERT_CLEAR | STATUS_SET)>;
> > + };
> > };
> >
> > wed_pcie: wed-pcie@...03000 {
> > @@ -240,6 +272,10 @@ wed0: wed@...10000 {
> > reg = <0 0x15010000 0 0x1000>;
> > interrupt-parent = <&gic>;
> > interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
> > + memory-region = <&wo_emi0>, <&wo_ilm0>, <&wo_data>;
> > + mediatek,wo-ccif = <&wo_ccif0>;
> > + mediatek,wo-dlm = <&wo_dlm0>;
> > + mediatek,wo-boot = <&wo_boot>;
> > };
> >
> > wed1: wed@...11000 {
> > @@ -248,6 +284,43 @@ wed1: wed@...11000 {
> > reg = <0 0x15011000 0 0x1000>;
> > interrupt-parent = <&gic>;
> > interrupts = <GIC_SPI 206 IRQ_TYPE_LEVEL_HIGH>;
> > + memory-region = <&wo_emi1>, <&wo_ilm1>, <&wo_data>;
> > + mediatek,wo-ccif = <&wo_ccif1>;
> > + mediatek,wo-dlm = <&wo_dlm1>;
> > + mediatek,wo-boot = <&wo_boot>;
> > + };
> > +
> > + wo_ccif0: wo-ccif1@...a5000 {
>
> Node names should be generic.
> https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
>
> "1" suffix is for sure not generic. Neither wo-ccif is... unless there
> is some article on Wikipedia about it? Or maybe generic name is not
> possible to get, which happens...
I think we can use "syscon" for wo_ccif and wo_boot. I can't find a better
name for wo_dlm since afaik it is a hw ring used for packet processing.
What do you think?
Regards,
Lorenzo
>
> > + compatible = "mediatek,mt7986-wo-ccif","syscon";
> > + reg = <0 0x151a5000 0 0x1000>;
> > + interrupt-parent = <&gic>;
> > + interrupts = <GIC_SPI 211 IRQ_TYPE_LEVEL_HIGH>;
> > + };
> > +
> > + wo_ccif1: wo-ccif1@...ad000 {
> > + compatible = "mediatek,mt7986-wo-ccif","syscon";
> > + reg = <0 0x151ad000 0 0x1000>;
> > + interrupt-parent = <&gic>;
> > + interrupts = <GIC_SPI 212 IRQ_TYPE_LEVEL_HIGH>;
> > + };
> > +
> > + wo_dlm0: wo-dlm@...e8000 {
> > + compatible = "mediatek,mt7986-wo-dlm";
> > + reg = <0 0x151e8000 0 0x2000>;
> > + resets = <ðsysrst 0>;
> > + reset-names = "wocpu_rst";
> > + };
> > +
> > + wo_dlm1: wo-dlm@...51f8000 {
> > + compatible = "mediatek,mt7986-wo-dlm";
> > + reg = <0 0x151f8000 0 0x2000>;
> > + resets = <ðsysrst 0>;
> > + reset-names = "wocpu_rst";
> > + };
> > +
> > + wo_boot: wo-boot@...94000 {
> > + compatible = "mediatek,mt7986-wo-boot","syscon";
>
> Missing space.
>
> > + reg = <0 0x15194000 0 0x1000>;
> > };
> >
> > eth: ethernet@...00000 {
>
> Best regards,
> Krzysztof
>
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