From: Andrew Lunn <andrew@lunn.ch>
To: Rakesh Sankaranarayanan <rakesh.sankaranarayanan@microchip.com>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
f.fainelli@gmail.com, olteanv@gmail.com, davem@davemloft.net,
edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
woojung.huh@microchip.com, UNGLinuxDriver@microchip.com,
linux@armlinux.org.uk
Subject: Re: [RFC PATCH net-next 08/11] net: dsa: microchip: lan937x: avoid mib read for cascaded port
Date: Thu, 2 Feb 2023 16:45:17 +0100 [thread overview]
Message-ID: <Y9vajWbCjZrGibHp@lunn.ch> (raw)
In-Reply-To: <20230202125930.271740-9-rakesh.sankaranarayanan@microchip.com>
On Thu, Feb 02, 2023 at 06:29:27PM +0530, Rakesh Sankaranarayanan wrote:
> Cascaded port need not be involved in mib read process. Unlike cpu port,
> mib read function will be called for all other ports. Add check to skip
> function if port is of type DSA_PORT_TYPE_DSA.
I would actually read the statistics. Having debugged D in DSA
systems, it is useful to know if packets are making it from one switch
to the other, etc.
The problem is getting the information out of the kernel. For
mv88e6xxx we have had an out of tree patch which exposes this
information in debugfs.
Andrew
next prev parent reply other threads:[~2023-02-02 15:46 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-02 12:59 [RFC PATCH net-next 00/11] net: dsa: microchip: lan937x: add switch cascade support Rakesh Sankaranarayanan
2023-02-02 12:59 ` [RFC PATCH net-next 01/11] net: dsa: microchip: lan937x: add cascade tailtag Rakesh Sankaranarayanan
2023-02-03 23:10 ` Vladimir Oltean
2023-02-02 12:59 ` [RFC PATCH net-next 02/11] net: dsa: microchip: lan937x: update SMI index Rakesh Sankaranarayanan
2023-02-03 23:18 ` Vladimir Oltean
2023-02-02 12:59 ` [RFC PATCH net-next 03/11] net: dsa: microchip: lan937x: enable cascade port Rakesh Sankaranarayanan
2023-02-03 23:24 ` Vladimir Oltean
2023-02-02 12:59 ` [RFC PATCH net-next 04/11] net: dsa: microchip: lan937x: update port number for LAN9373 Rakesh Sankaranarayanan
2023-02-02 15:19 ` Andrew Lunn
2023-02-03 10:43 ` Rakesh.Sankaranarayanan
2023-02-03 23:26 ` Vladimir Oltean
2023-02-06 14:38 ` Arun.Ramadoss
2023-02-02 12:59 ` [RFC PATCH net-next 05/11] net: dsa: microchip: lan937x: add shared global interrupt Rakesh Sankaranarayanan
2023-02-02 15:25 ` Andrew Lunn
2023-02-02 12:59 ` [RFC PATCH net-next 06/11] net: dsa: microchip: lan937x: get cascade tag protocol Rakesh Sankaranarayanan
2023-02-03 23:30 ` Vladimir Oltean
2023-02-02 12:59 ` [RFC PATCH net-next 07/11] net: dsa: microchip: lan937x: update switch register Rakesh Sankaranarayanan
2023-02-02 15:40 ` Andrew Lunn
2023-02-03 10:48 ` Rakesh.Sankaranarayanan
2023-02-03 23:37 ` Vladimir Oltean
2023-02-02 12:59 ` [RFC PATCH net-next 08/11] net: dsa: microchip: lan937x: avoid mib read for cascaded port Rakesh Sankaranarayanan
2023-02-02 15:45 ` Andrew Lunn [this message]
2023-02-02 12:59 ` [RFC PATCH net-next 09/11] net: dsa: microchip: lan937x: update port membership with dsa port Rakesh Sankaranarayanan
2023-02-03 23:47 ` Vladimir Oltean
2023-02-02 12:59 ` [RFC PATCH net-next 10/11] net: dsa: microchip: lan937x: update vlan untag membership Rakesh Sankaranarayanan
2023-02-03 23:48 ` Vladimir Oltean
2023-02-02 12:59 ` [RFC PATCH net-next 11/11] net: dsa: microchip: lan937x: update multicast table Rakesh Sankaranarayanan
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=Y9vajWbCjZrGibHp@lunn.ch \
--to=andrew@lunn.ch \
--cc=UNGLinuxDriver@microchip.com \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=f.fainelli@gmail.com \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@armlinux.org.uk \
--cc=netdev@vger.kernel.org \
--cc=olteanv@gmail.com \
--cc=pabeni@redhat.com \
--cc=rakesh.sankaranarayanan@microchip.com \
--cc=woojung.huh@microchip.com \
/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).