From: Greg Ungerer <gerg@kernel.org>
To: Andrew Lunn <andrew@lunn.ch>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: Re: [PATCH net] net: dsa: mv88e6xxx: Set correct interface mode for CPU/DSA ports
Date: Fri, 24 May 2019 11:25:03 +1000 [thread overview]
Message-ID: <e27eeebb-44fb-ae42-d43d-b42b47510f76@kernel.org> (raw)
Hi Andrew,
I have a problem with a Marvell 6390 switch that I have bisected
back to commit 7cbbee050c95, "[PATCH] net: dsa: mv88e6xxx: Set correct
interface mode for CPU/DSA ports".
I have a Marvell 380 SoC based platform with a Marvell 6390 10 port
switch, everything works with kernel 5.0 and older. As of 5.1 the
switch ports no longer work - no packets are ever received and
none get sent out.
The ports are probed and all discovered ok, they just don't work.
mv88e6085 f1072004.mdio-mii:10: switch 0x3900 detected: Marvell 88E6390, revision 1
libphy: mv88e6xxx SMI: probed
mv88e6085 f1072004.mdio-mii:10 lan1 (uninitialized): PHY [mv88e6xxx-1:01] driver [Marvell 88E6390]
mv88e6085 f1072004.mdio-mii:10 lan2 (uninitialized): PHY [mv88e6xxx-1:02] driver [Marvell 88E6390]
mv88e6085 f1072004.mdio-mii:10 lan3 (uninitialized): PHY [mv88e6xxx-1:03] driver [Marvell 88E6390]
mv88e6085 f1072004.mdio-mii:10 lan4 (uninitialized): PHY [mv88e6xxx-1:04] driver [Marvell 88E6390]
mv88e6085 f1072004.mdio-mii:10 lan5 (uninitialized): PHY [mv88e6xxx-1:05] driver [Marvell 88E6390]
mv88e6085 f1072004.mdio-mii:10 lan6 (uninitialized): PHY [mv88e6xxx-1:06] driver [Marvell 88E6390]
mv88e6085 f1072004.mdio-mii:10 lan7 (uninitialized): PHY [mv88e6xxx-1:07] driver [Marvell 88E6390]
mv88e6085 f1072004.mdio-mii:10 lan8 (uninitialized): PHY [mv88e6xxx-1:08] driver [Marvell 88E6390]
DSA: tree 0 setup
Things like ethtool on the ports seem to work ok, reports link correctly.
Configuring ports as part of a bridge or individually gets the same result.
Reverting just this single commit gets the ports working again
with a linux-5.1 kernel.
Any ideas?
Regards
Greg
next reply other threads:[~2019-05-24 1:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-24 1:25 Greg Ungerer [this message]
2019-05-24 13:44 ` [PATCH net] net: dsa: mv88e6xxx: Set correct interface mode for CPU/DSA ports Andrew Lunn
2019-05-27 1:26 ` Greg Ungerer
2019-05-28 13:17 ` Andrew Lunn
2019-05-29 1:12 ` Greg Ungerer
-- strict thread matches above, loose matches on Subject: below --
2019-03-08 0:21 Andrew Lunn
2019-03-09 7:02 ` David Miller
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