netdev - Re: [PATCH net] net: phy: smsc: Disable Energy Detect Power-Down in interrupt mode

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Date:   Wed, 22 Jun 2022 05:50:13 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Lukas Wunner <lukas@...ner.de>
Cc:     davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        edumazet@...gle.com, netdev@...r.kernel.org,
        linux-usb@...r.kernel.org, steve.glendinning@...well.net,
        UNGLinuxDriver@...rochip.com, oneukum@...e.com,
        andre.edich@...rochip.com, linux@...pel-privat.de,
        martyn.welch@...labora.com, ghojda@...urs.ro,
        chf.fritz@...glemail.com, LinoSanfilippo@....de,
        p.rosenberger@...bus.com, z.han@...bus.com, hkallweit1@...il.com,
        andrew@...n.ch, linux@...linux.org.uk, fntoth@...il.com,
        m.szyprowski@...sung.com, krzk@...nel.org,
        linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH net] net: phy: smsc: Disable Energy Detect Power-Down in
 interrupt mode

Hello:

This patch was applied to netdev/net.git (master)
by Jakub Kicinski <kuba@...nel.org>:

On Mon, 20 Jun 2022 13:04:50 +0200 you wrote:
> Simon reports that if two LAN9514 USB adapters are directly connected
> without an intermediate switch, the link fails to come up and link LEDs
> remain dark.  The issue was introduced by commit 1ce8b37241ed ("usbnet:
> smsc95xx: Forward PHY interrupts to PHY driver to avoid polling").
> 
> The PHY suffers from a known erratum wherein link detection becomes
> unreliable if Energy Detect Power-Down is used.  In poll mode, the
> driver works around the erratum by briefly disabling EDPD for 640 msec
> to detect a neighbor, then re-enabling it to save power.
> 
> [...]

Here is the summary with links:
  - [net] net: phy: smsc: Disable Energy Detect Power-Down in interrupt mode
    https://git.kernel.org/netdev/net/c/2642cc6c3bbe

You are awesome, thank you!
-- 
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