netdev - Re: [PATCH RFC 0/6] net: stmmac: convert stmmac "pcs" to phylink

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Date: Tue, 14 May 2024 00:21:42 +0100
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Serge Semin <fancer.lancer@...il.com>
Cc: Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Alexei Starovoitov <ast@...nel.org>, bpf@...r.kernel.org,
	Daniel Borkmann <daniel@...earbox.net>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Jesper Dangaard Brouer <hawk@...nel.org>,
	John Fastabend <john.fastabend@...il.com>,
	Jose Abreu <joabreu@...opsys.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-stm32@...md-mailman.stormreply.com,
	Maxime Coquelin <mcoquelin.stm32@...il.com>, netdev@...r.kernel.org,
	Paolo Abeni <pabeni@...hat.com>
Subject: Re: [PATCH RFC 0/6] net: stmmac: convert stmmac "pcs" to phylink

On Tue, May 14, 2024 at 02:04:00AM +0300, Serge Semin wrote:
> Hi Russell
> 
> I'll give your series a try later on this week on my DW GMAC with the
> RGMII interface (alas I don't have an SGMII capable device, so can't
> help with the AN-part testing).

Thanks!

> Today I've made a brief glance on it
> and already noted a few places which may require a fix to make the
> change working for RGMII (at least the RGSMIIIS IRQ must be got back
> enabled). After making the patch set working for my device in what
> form would you prefer me to submit the fixes? As incremental patches
> in-reply to this thread?

I think it depends on where the issues are.

If they are addressing issues that are also present in the existing
code, then it would make sense to get those patched as the driver
stands today, because backporting them to stable would be easier.

If they are for "new" issues, given that this patch series is more
or less experimental, I would prefer to roll them into these
patches. As mentioned, when it comes to submitting these patches,
the way I've split them wouldn't make much sense, but it does
make sense for where I am with it. Hence, I'll want to resplit
the series into something better for submission than it currently
is. If you want to reply to this thread, that is fine.

There's still a few netif_carrier_off()/netif_carrier_on()s left
in the driver even after this patch series, but I think they're in
more obscure paths, but I will also want to address those as well.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!