From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Ioana Ciornei <ioana.ciornei@nxp.com>
Cc: "Florian Fainelli" <f.fainelli@gmail.com>,
"Jakub Kicinski" <kuba@kernel.org>,
"Andrew Lunn" <andrew@lunn.ch>,
"Heiner Kallweit" <hkallweit1@gmail.com>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Ioana Ciornei" <ciorneiioana@gmail.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
"Alexandru Ardelean" <alexandru.ardelean@analog.com>,
"Andre Edich" <andre.edich@microchip.com>,
"Antoine Tenart" <atenart@kernel.org>,
"Baruch Siach" <baruch@tkos.co.il>,
"Christophe Leroy" <christophe.leroy@c-s.fr>,
"Divya Koppera" <Divya.Koppera@microchip.com>,
"Hauke Mehrtens" <hauke@hauke-m.de>,
"Jerome Brunet" <jbrunet@baylibre.com>,
"Kavya Sree Kotagiri" <kavyasree.kotagiri@microchip.com>,
"Linus Walleij" <linus.walleij@linaro.org>,
"Marco Felsch" <m.felsch@pengutronix.de>,
"Marek Vasut" <marex@denx.de>,
"Martin Blumenstingl" <martin.blumenstingl@googlemail.com>,
"Mathias Kresin" <dev@kresin.me>,
"Maxim Kochetkov" <fido_max@inbox.ru>,
"Michael Walle" <michael@walle.cc>,
"Neil Armstrong" <narmstrong@baylibre.com>,
"Nisar Sayed" <Nisar.Sayed@microchip.com>,
"Oleksij Rempel" <o.rempel@pengutronix.de>,
"Philippe Schenker" <philippe.schenker@toradex.com>,
"Willy Liu" <willy.liu@realtek.com>,
"Yuiko Oshino" <yuiko.oshino@microchip.com>
Subject: Re: [PATCH] net: phy: Don't disable irqs on shutdown if WoL is enabled
Date: Wed, 9 Aug 2023 15:29:17 +0100 [thread overview]
Message-ID: <ZNOivVJ+G/sRiwai@shell.armlinux.org.uk> (raw)
In-Reply-To: <20230809142155.4dtmnmmecaycbtum@LXL00007.wbi.nxp.com>
On Wed, Aug 09, 2023 at 05:21:55PM +0300, Ioana Ciornei wrote:
> That's a perfect summary of the problem that I was trying to fix.
>
> The board in question is a LS1021ATSN which has two AR8031 PHYs that
> share an interrupt line. In case only one of the PHYs is probed and
> there are pending interrupts on the PHY#2 an IRQ storm will happen
> since there is no entity to clear the interrupt from PHY#2's registers.
> PHY#1's driver will get stuck in .handle_interrupt() indefinitely.
So I have two further questions:
1. Is WoL able to be supported on this hardware?
2. AR8031 has a seperate WOL_INT signal that can be used to wake up the
system. Is this used in the hardware design?
Thanks.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
next prev parent reply other threads:[~2023-08-09 14:29 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-04 7:17 [PATCH] net: phy: Don't disable irqs on shutdown if WoL is enabled Uwe Kleine-König
2023-08-08 21:53 ` Jakub Kicinski
2023-08-08 21:59 ` Florian Fainelli
2023-08-08 22:56 ` Russell King (Oracle)
2023-08-09 14:21 ` Ioana Ciornei
2023-08-09 14:29 ` Russell King (Oracle) [this message]
2023-08-09 15:44 ` Ioana Ciornei
2023-08-09 16:01 ` Russell King (Oracle)
2023-08-09 16:21 ` Andrew Lunn
2023-08-09 17:04 ` Florian Fainelli
2023-08-09 19:15 ` Russell King (Oracle)
2023-08-10 11:01 ` Ioana Ciornei
2023-08-09 13:58 ` Vladimir Oltean
2023-08-09 15:35 ` Florian Fainelli
2023-08-10 6:32 ` Uwe Kleine-König
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