netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Joakim Zhang <qiangqing.zhang@nxp.com>
To: Oleksij Rempel <o.rempel@pengutronix.de>
Cc: Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Andrew Lunn <andrew@lunn.ch>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Fugang Duan <fugang.duan@nxp.com>,
	"kernel@pengutronix.de" <kernel@pengutronix.de>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	dl-linux-imx <linux-imx@nxp.com>,
	Fabio Estevam <festevam@gmail.com>,
	David Jander <david@protonic.nl>,
	Russell King <linux@armlinux.org.uk>,
	Philippe Schenker <philippe.schenker@toradex.com>
Subject: RE: [PATCH net-next v3 0/6] provide generic net selftest support
Date: Tue, 27 Apr 2021 04:48:42 +0000	[thread overview]
Message-ID: <DB8PR04MB6795479FBF086751D16080E2E6419@DB8PR04MB6795.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <20210423043729.tup7nntmmyv6vurm@pengutronix.de>


> -----Original Message-----
> From: Oleksij Rempel <o.rempel@pengutronix.de>
> Sent: 2021年4月23日 12:37
> To: Joakim Zhang <qiangqing.zhang@nxp.com>
> Cc: Shawn Guo <shawnguo@kernel.org>; Sascha Hauer
> <s.hauer@pengutronix.de>; Andrew Lunn <andrew@lunn.ch>; Florian Fainelli
> <f.fainelli@gmail.com>; Heiner Kallweit <hkallweit1@gmail.com>; Fugang
> Duan <fugang.duan@nxp.com>; kernel@pengutronix.de;
> netdev@vger.kernel.org; linux-arm-kernel@lists.infradead.org;
> linux-kernel@vger.kernel.org; dl-linux-imx <linux-imx@nxp.com>; Fabio
> Estevam <festevam@gmail.com>; David Jander <david@protonic.nl>; Russell
> King <linux@armlinux.org.uk>; Philippe Schenker
> <philippe.schenker@toradex.com>
> Subject: Re: [PATCH net-next v3 0/6] provide generic net selftest support
> 
> Hi Joakim,
> 
> On Fri, Apr 23, 2021 at 03:18:32AM +0000, Joakim Zhang wrote:
> >
> > Hi Oleksij,
> >
> > I look both stmmac selftest code and this patch set. For stmmac, if PHY
> doesn't support loopback, it will fallthrough to MAC loopback.
> > You provide this generic net selftest support based on PHY loopback, I have a
> question, is it possible to extend it also support MAC loopback later?
> 
> Yes. If you have interest and time to implement it, please do.
> It should be some kind of generic callback as phy_loopback() and if PHY and
> MAC loopbacks are supported we need to tests both variants.
Hi Oleksij,

Yes, I can try to implement it when I am free, but I still have some questions:
1. Where we place the generic function? Such as mac_loopback().
2. MAC is different from PHY, need program different registers to enable loopback on different SoCs, that means we need get MAC private data from "struct net_device".
So we need a callback for MAC drivers, where we extend this callback? Could be "struct net_device_ops"? Such as ndo_set_loopback?

Best Regards,
Joakim Zhang
> Best regards,
> Oleksij
> 
> > > -----Original Message-----
> > > From: Oleksij Rempel <o.rempel@pengutronix.de>
> > > Sent: 2021年4月19日 21:01
> > > To: Shawn Guo <shawnguo@kernel.org>; Sascha Hauer
> > > <s.hauer@pengutronix.de>; Andrew Lunn <andrew@lunn.ch>; Florian
> > > Fainelli <f.fainelli@gmail.com>; Heiner Kallweit
> > > <hkallweit1@gmail.com>; Fugang Duan <fugang.duan@nxp.com>
> > > Cc: Oleksij Rempel <o.rempel@pengutronix.de>; kernel@pengutronix.de;
> > > netdev@vger.kernel.org; linux-arm-kernel@lists.infradead.org;
> > > linux-kernel@vger.kernel.org; dl-linux-imx <linux-imx@nxp.com>;
> > > Fabio Estevam <festevam@gmail.com>; David Jander
> > > <david@protonic.nl>; Russell King <linux@armlinux.org.uk>; Philippe
> > > Schenker <philippe.schenker@toradex.com>
> > > Subject: [PATCH net-next v3 0/6] provide generic net selftest
> > > support
> > >
> > > changes v3:
> > > - make more granular tests
> > > - enable loopback for all PHYs by default
> > > - fix allmodconfig build errors
> > > - poll for link status update after switching to the loopback mode
> > >
> > > changes v2:
> > > - make generic selftests available for all networking devices.
> > > - make use of net_selftest* on FEC, ag71xx and all DSA switches.
> > > - add loopback support on more PHYs.
> > >
> > > This patch set provides diagnostic capabilities for some iMX, ag71xx
> > > or any DSA based devices. For proper functionality, PHY loopback support is
> needed.
> > > So far there is only initial infrastructure with basic tests.
> > >
> > > Oleksij Rempel (6):
> > >   net: phy: execute genphy_loopback() per default on all PHYs
> > >   net: phy: genphy_loopback: add link speed configuration
> > >   net: add generic selftest support
> > >   net: fec: make use of generic NET_SELFTESTS library
> > >   net: ag71xx: make use of generic NET_SELFTESTS library
> > >   net: dsa: enable selftest support for all switches by default
> > >
> > >  drivers/net/ethernet/atheros/Kconfig      |   1 +
> > >  drivers/net/ethernet/atheros/ag71xx.c     |  20 +-
> > >  drivers/net/ethernet/freescale/Kconfig    |   1 +
> > >  drivers/net/ethernet/freescale/fec_main.c |   7 +
> > >  drivers/net/phy/phy.c                     |   3 +-
> > >  drivers/net/phy/phy_device.c              |  35 +-
> > >  include/linux/phy.h                       |   1 +
> > >  include/net/dsa.h                         |   2 +
> > >  include/net/selftests.h                   |  12 +
> > >  net/Kconfig                               |   4 +
> > >  net/core/Makefile                         |   1 +
> > >  net/core/selftests.c                      | 400
> > > ++++++++++++++++++++++
> > >  net/dsa/Kconfig                           |   1 +
> > >  net/dsa/slave.c                           |  21 ++
> > >  14 files changed, 500 insertions(+), 9 deletions(-)  create mode
> > > 100644 include/net/selftests.h  create mode 100644
> > > net/core/selftests.c
> > >
> > > --
> > > 2.29.2
> >
> > _______________________________________________
> > linux-arm-kernel mailing list
> > linux-arm-kernel@lists.infradead.org
> > https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists
> > .infradead.org%2Fmailman%2Flistinfo%2Flinux-arm-kernel&amp;data=04%7
> C0
> >
> 1%7Cqiangqing.zhang%40nxp.com%7C8796bf53e46b4b1be92b08d9061186f9
> %7C686
> >
> ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C637547494614753358%7CU
> nknown%7
> >
> CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiL
> CJXV
> >
> CI6Mn0%3D%7C1000&amp;sdata=x%2BUFB%2B1Xp0zbR1mG5HDGvqBUvKhX
> VJn337T%2BB
> > D7cO6g%3D&amp;reserved=0
> 
> --
> Pengutronix e.K.                           |
> |
> Steuerwalder Str. 21                       |
> https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.pe
> ngutronix.de%2F&amp;data=04%7C01%7Cqiangqing.zhang%40nxp.com%7C87
> 96bf53e46b4b1be92b08d9061186f9%7C686ea1d3bc2b4c6fa92cd99c5c301635
> %7C0%7C0%7C637547494614753358%7CUnknown%7CTWFpbGZsb3d8eyJWIj
> oiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C10
> 00&amp;sdata=K2dsGVxEXv%2FtC7p0l4TFlLlaqzzTa6ktrbSdcCJ10J0%3D&amp;
> reserved=0  |
> 31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0
> |
> Amtsgericht Hildesheim, HRA 2686           | Fax:
> +49-5121-206917-5555 |

  reply	other threads:[~2021-04-27  4:48 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-19 13:01 [PATCH net-next v3 0/6] provide generic net selftest support Oleksij Rempel
2021-04-19 13:01 ` [PATCH net-next v3 1/6] net: phy: execute genphy_loopback() per default on all PHYs Oleksij Rempel
2021-04-19 13:01 ` [PATCH net-next v3 2/6] net: phy: genphy_loopback: add link speed configuration Oleksij Rempel
2021-04-19 13:01 ` [PATCH net-next v3 3/6] net: add generic selftest support Oleksij Rempel
2021-04-30  6:45   ` Geert Uytterhoeven
2021-04-30  7:26     ` Oleksij Rempel
2021-04-30  7:49       ` Geert Uytterhoeven
2021-04-30 12:31     ` Andrew Lunn
2021-04-19 13:01 ` [PATCH net-next v3 4/6] net: fec: make use of generic NET_SELFTESTS library Oleksij Rempel
2021-04-19 13:01 ` [PATCH net-next v3 5/6] net: ag71xx: " Oleksij Rempel
2021-04-19 13:01 ` [PATCH net-next v3 6/6] net: dsa: enable selftest support for all switches by default Oleksij Rempel
2021-04-23  3:18 ` [PATCH net-next v3 0/6] provide generic net selftest support Joakim Zhang
2021-04-23  4:37   ` Oleksij Rempel
2021-04-27  4:48     ` Joakim Zhang [this message]
2021-04-27  7:15       ` Oleksij Rempel
2021-04-27 16:40       ` Florian Fainelli
2021-04-28  8:06         ` Joakim Zhang
2021-04-28  8:51           ` Oleksij Rempel

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=DB8PR04MB6795479FBF086751D16080E2E6419@DB8PR04MB6795.eurprd04.prod.outlook.com \
    --to=qiangqing.zhang@nxp.com \
    --cc=andrew@lunn.ch \
    --cc=david@protonic.nl \
    --cc=f.fainelli@gmail.com \
    --cc=festevam@gmail.com \
    --cc=fugang.duan@nxp.com \
    --cc=hkallweit1@gmail.com \
    --cc=kernel@pengutronix.de \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-imx@nxp.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux@armlinux.org.uk \
    --cc=netdev@vger.kernel.org \
    --cc=o.rempel@pengutronix.de \
    --cc=philippe.schenker@toradex.com \
    --cc=s.hauer@pengutronix.de \
    --cc=shawnguo@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).