From: Dario Alcocer <dalcocer@helixd.com>
To: Andrew Lunn <andrew@lunn.ch>
Cc: netdev@vger.kernel.org
Subject: Re: Marvell switch port shows LOWERLAYERDOWN, ping fails
Date: Sat, 24 Jul 2021 19:36:29 -0700 [thread overview]
Message-ID: <bcd589bd-eeb4-478c-127b-13f613fdfebc@helixd.com> (raw)
In-Reply-To: <f8ee6413-9cf5-ce07-42f3-6cc670c12824@helixd.com>
On 7/24/21 7:26 PM, Dario Alcocer wrote:
> On 7/24/21 10:34 AM, Andrew Lunn wrote:
>> You might want to enable dbg prints in driver/nets/phy/phy.c, so you
>> can see the state machine changes.
>
> Great suggestion. I added the following to the boot options:
>
> dyndbg="file net/dsa/* +p; file drivers/net/phy/phy.c +p"
>
> The relevant messages collected from the system log are below.
> Interestingly, all of the ports go from UP to NOLINK. In addition,
> "breaking chain for DSA event 7" is reported, once for each port.
>
> I'll dig into the DSA sources to see the significance of event 7.
Event 7 is DSA_NOTIFIER_VLAN_ADD, found in net/dsa/dsa_priv.h
next prev parent reply other threads:[~2021-07-25 2:36 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-22 22:55 Marvell switch port shows LOWERLAYERDOWN, ping fails Dario Alcocer
2021-07-23 13:41 ` Andrew Lunn
2021-07-23 18:21 ` Dario Alcocer
2021-07-23 18:25 ` Andrew Lunn
2021-07-23 18:36 ` Dario Alcocer
2021-07-23 21:58 ` Dario Alcocer
2021-07-24 17:34 ` Andrew Lunn
2021-07-25 2:26 ` Dario Alcocer
2021-07-25 2:36 ` Dario Alcocer [this message]
2021-07-27 1:39 ` Dario Alcocer
2021-07-28 18:07 ` Dario Alcocer
2021-07-28 18:23 ` Andrew Lunn
2021-07-28 18:33 ` Dario Alcocer
2021-07-28 19:24 ` Andrew Lunn
2021-07-28 19:37 ` Dario Alcocer
2021-07-28 20:47 ` Andrew Lunn
2021-07-28 20:54 ` Dario Alcocer
2021-07-28 21:09 ` Andrew Lunn
2021-08-05 21:44 ` Dario Alcocer
2021-08-06 16:03 ` Dario Alcocer
2021-08-06 23:46 ` Dario Alcocer
2021-08-07 18:57 ` Andrew Lunn
2021-08-09 16:28 ` Dario Alcocer
2021-08-10 20:58 ` Dario Alcocer
2021-08-10 22:13 ` Andrew Lunn
2021-08-11 13:16 ` Dario Alcocer
2021-08-07 17:44 ` Andrew Lunn
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=bcd589bd-eeb4-478c-127b-13f613fdfebc@helixd.com \
--to=dalcocer@helixd.com \
--cc=andrew@lunn.ch \
--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).