From: Andrew Lunn <andrew@lunn.ch>
To: Igor Velkov <iav@iav.lv>
Cc: Heiner Kallweit <hkallweit1@gmail.com>,
Russell King <linux@armlinux.org.uk>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@kernel.org>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Lukas Wunner <lukas@wunner.de>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net] net: phy: postpone PHY interrupts during sleep with MAC-managed PM
Date: Sun, 4 Oct 2026 16:35:14 +0200 [thread overview]
Message-ID: <77e5a3c4-8b47-4609-b8a2-7f7b353bc219@lunn.ch> (raw)
In-Reply-To: <20261002043548.1302145-1-iav@iav.lv>
> /* Wakeup interrupts may occur during the system sleep transition when
> * the PHY is inaccessible. Set flag to postpone handling until the PHY
> * has resumed. Wait for concurrent interrupt handler to complete.
> + * The MDIO bus may be powered down even when the MAC manages PHY PM.
Just think about that statement. MAC manages _PHY_ PM. It is not MAC
managed _PHY and MDIO_ bus PM.
To me, this is key, because it means your whole approach is
wrong. Lets start with a clear definition what MAC manages PHY PM
is. Then we can decide on a solution.
Andrew
---
pw-bot: cr
next prev parent reply other threads:[~2026-10-04 14:35 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-02 4:35 Igor Velkov
2026-10-02 5:03 ` Igor Velkov
2026-10-03 20:35 ` Igor Velkov
2026-10-04 14:28 ` Andrew Lunn
2026-10-04 18:21 ` Igor Velkov
2026-10-04 14:35 ` Andrew Lunn [this message]
2026-10-06 4:38 ` netdev-bot+sashiko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=77e5a3c4-8b47-4609-b8a2-7f7b353bc219@lunn.ch \
--to=andrew@lunn.ch \
--cc=davem@davemloft.net \
--cc=edumazet@kernel.org \
--cc=hkallweit1@gmail.com \
--cc=iav@iav.lv \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@armlinux.org.uk \
--cc=lukas@wunner.de \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®