From: Russell King - ARM Linux admin <linux@armlinux.org.uk>
To: Bjarni Jonasson <bjarni.jonasson@microchip.com>
Cc: Andrew Lunn <andrew@lunn.ch>,
Heiner Kallweit <hkallweit1@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
UNGLinuxDriver <UNGLinuxDriver@microchip.com>
Subject: Re: [PATCH] phy: phylink: Fix CuSFP issue in phylink
Date: Tue, 10 Nov 2020 15:12:48 +0000 [thread overview]
Message-ID: <20201110151248.GA1551@shell.armlinux.org.uk> (raw)
In-Reply-To: <87blg5qou5.fsf@microchip.com>
On Tue, Nov 10, 2020 at 03:16:34PM +0100, Bjarni Jonasson wrote:
>
> Russell King - ARM Linux admin writes:
>
> > On Tue, Nov 10, 2020 at 11:06:42AM +0100, Bjarni Jonasson wrote:
> >> There is an issue with the current phylink driver and CuSFPs which
> >> results in a callback to the phylink validate function without any
> >> advertisement capabilities. The workaround (in this changeset)
> >> is to assign capabilities if a 1000baseT SFP is identified.
> >
> > How does this happen? Which PHY is being used?
>
> This occurs just by plugging in the CuSFP.
> None of the CuSFPs we have tested are working.
> This is a dump from 3 different CuSFPs, phy regs 0-3:
> FS SFP: 01:40:79:49
> HP SFP: 01:40:01:49
> Marvel SFP: 01:40:01:49
> This was working before the delayed mac config was implemented (in dec
> 2019).
You're dumping PHY registers 0 and 1 there, not 0 through 3, which
the values confirm. I don't recognise the format either. PHY registers
are always 16-bit.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
next prev parent reply other threads:[~2020-11-10 15:13 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-10 10:06 [PATCH] phy: phylink: Fix CuSFP issue in phylink Bjarni Jonasson
2020-11-10 10:25 ` Russell King - ARM Linux admin
2020-11-10 14:16 ` Bjarni Jonasson
2020-11-10 15:12 ` Russell King - ARM Linux admin [this message]
2020-11-11 8:52 ` Bjarni Jonasson
2020-11-15 12:19 ` Russell King - ARM Linux admin
2020-11-17 11:09 ` Bjarni Jonasson
2020-11-17 13:45 ` Andrew Lunn
2020-11-17 15:08 ` Florian Fainelli
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=20201110151248.GA1551@shell.armlinux.org.uk \
--to=linux@armlinux.org.uk \
--cc=UNGLinuxDriver@microchip.com \
--cc=andrew@lunn.ch \
--cc=bjarni.jonasson@microchip.com \
--cc=davem@davemloft.net \
--cc=hkallweit1@gmail.com \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
/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;
as well as URLs for NNTP newsgroup(s).