linux-kernel - Re: [PATCH net-next 1/1] net: phy: marvell10g: Add WAKE

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Date:   Mon, 16 Aug 2021 11:54:35 +0200
From:   Marek Behún <kabel@...nel.org>
To:     "Song, Yoong Siang" <yoong.siang.song@...el.com>
Cc:     Russell King <linux@...linux.org.uk>, Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next 1/1] net: phy: marvell10g: Add WAKE_PHY support
 to WOL event

On Mon, 16 Aug 2021 08:56:36 +0000
"Song, Yoong Siang" <yoong.siang.song@...el.com> wrote:

> Yes, you are right. I missed the effect of get_wol.
> Is it needed in future to implement link change interrupt in phy
> driver? Cause I dint see much phy driver implement link change
> interrupt.

If there is a board that has interrupt pin wired correctly from the
PHY and the interrupt controller is safe to use (i.e. it is not a
PCA953x which cannot handle interrupt storms correctly), then I think
the PHY driver should use the interrupt, instead of polling.

Marek