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

From: [email-masked]
Date: Wed, 22 Jun 2022 05:50:13 +0000

Hello:

This patch was applied to netdev/net.git (master)
by Jakub Kicinski <[email-masked]>:

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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