linux-kernel - RE: [PATCH v8 2/2] net: stmmac: dwc-qos: Add FSD EQoS support

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Message-ID: <000501db97f4$5cf4e7d0$16deb770$@samsung.com>
Date: Tue, 18 Mar 2025 16:26:03 +0530
From: "Swathi K S" <swathi.ks@...sung.com>
To: "'Russell King \(Oracle\)'" <linux@...linux.org.uk>
Cc: <krzk+dt@...nel.org>, <andrew+netdev@...n.ch>, <davem@...emloft.net>,
	<edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
	<robh@...nel.org>, <conor+dt@...nel.org>, <richardcochran@...il.com>,
	<mcoquelin.stm32@...il.com>, <alexandre.torgue@...s.st.com>,
	<netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-stm32@...md-mailman.stormreply.com>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
	<pankaj.dubey@...sung.com>, <ravi.patel@...sung.com>, <gost.dev@...sung.com>
Subject: RE: [PATCH v8 2/2] net: stmmac: dwc-qos: Add FSD EQoS support



> -----Original Message-----
> From: Russell King (Oracle) <linux@...linux.org.uk>
> Sent: 12 March 2025 23:27
> To: Swathi K S <swathi.ks@...sung.com>
> Cc: krzk+dt@...nel.org; andrew+netdev@...n.ch; davem@...emloft.net;
> edumazet@...gle.com; kuba@...nel.org; pabeni@...hat.com;
> robh@...nel.org; conor+dt@...nel.org; richardcochran@...il.com;
> mcoquelin.stm32@...il.com; alexandre.torgue@...s.st.com;
> netdev@...r.kernel.org; devicetree@...r.kernel.org; linux-stm32@...md-
> mailman.stormreply.com; linux-arm-kernel@...ts.infradead.org; linux-
> kernel@...r.kernel.org; pankaj.dubey@...sung.com;
> ravi.patel@...sung.com; gost.dev@...sung.com
> Subject: Re: [PATCH v8 2/2] net: stmmac: dwc-qos: Add FSD EQoS support
> 
> On Wed, Mar 05, 2025 at 02:43:52PM +0000, Russell King (Oracle) wrote:
> > On Wed, Mar 05, 2025 at 02:42:46PM +0530, Swathi K S wrote:
> > > The FSD SoC contains two instance of the Synopsys DWC ethernet QOS IP
> core.
> > > The binding that it uses is slightly different from existing ones
> > > because of the integration (clocks, resets).
> > >
> > > Signed-off-by: Swathi K S <swathi.ks@...sung.com>
> >
> > This looks much better!
> >
> > Reviewed-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
> >
> > Thanks!
> 
> Hi Swathi,
> 
> Please can you test with my TX clock gating series applied (
> https://lore.kernel.org/r/Z9FVHEf3uUqtKzyt@shell.armlinux.org.uk ) with
> STMMAC_FLAG_EN_TX_LPI_CLK_PHY_CAP set as per the attached diff.
> Please let me know whether this passes your testing, so I know whether
this
> platform supports it - please check that this results in a message in the
kernel
> log indicating "tx_clk_stop = 1". Thanks.

Hi Russell, 
Applied your patches and tested. 
It did not cause any functional issue, but at the same time, as EEE is not
enabled in our HW, we cannot really test that particular functionality.

Regards, 
Swathi

> 
> --
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