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From: Andrew Lunn <andrew@lunn.ch>
To: Michael Walle <michael@walle.cc>
Cc: Florian Fainelli <f.fainelli@gmail.com>,
	cphealy@gmail.com, davem@davemloft.net, hkallweit1@gmail.com,
	mkubecek@suse.cz, netdev@vger.kernel.org
Subject: Re: [PATCH net-next v1 0/9] Ethernet Cable test support
Date: Thu, 30 Apr 2020 22:56:51 +0200	[thread overview]
Message-ID: <20200430205651.GH107658@lunn.ch> (raw)
In-Reply-To: <4cae330197a5bdd1559dcea3482f0732@walle.cc>

On Thu, Apr 30, 2020 at 10:01:55PM +0200, Michael Walle wrote:
> Oh so, the time delta counter of the Marvell PHY also runs at 125MHz? ;)

No idea. But 125MHz is one of the fundamental clocks rates in
Ethernet, so it make sense to reuse it.

>        /* Accoring to the datasheet the distance to the fault is
>         * DELTA_TIME * 0.824 meters.

A calculation like that pops up in my second set of patches where i
add raw TDR data access.

    Andrew

  reply	other threads:[~2020-04-30 20:56 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-25 18:06 [PATCH net-next v1 0/9] Ethernet Cable test support Andrew Lunn
2020-04-25 18:06 ` [PATCH net-next v1 1/9] net: phy: Add cable test support to state machine Andrew Lunn
2020-04-26 19:46   ` Michal Kubecek
2020-04-26 20:31     ` Andrew Lunn
2020-04-26 21:22   ` Florian Fainelli
2020-04-25 18:06 ` [PATCH net-next v1 2/9] net: phy: Add support for polling cable test Andrew Lunn
2020-04-25 19:49   ` Florian Fainelli
2020-04-25 20:10     ` Andrew Lunn
2020-04-26 21:19       ` Florian Fainelli
2020-04-26 22:07         ` Andrew Lunn
2020-04-25 18:06 ` [PATCH net-next v1 3/9] net: ethtool: netlink: Add support for triggering a " Andrew Lunn
2020-04-26 19:36   ` Michal Kubecek
2020-04-26 20:38     ` Andrew Lunn
2020-04-26 20:50       ` Michal Kubecek
2020-04-25 18:06 ` [PATCH net-next v1 4/9] net: ethtool: Add attributes for cable test reports Andrew Lunn
2020-04-25 20:00   ` Randy Dunlap
2020-04-26 20:25   ` Michal Kubecek
2020-04-26 21:12     ` Andrew Lunn
2020-04-27  7:13       ` Michal Kubecek
2020-04-29 16:16   ` Michael Walle
2020-04-29 18:57     ` Andrew Lunn
2020-04-29 18:58       ` Florian Fainelli
2020-04-29 19:32         ` Michael Walle
2020-04-25 18:06 ` [PATCH net-next v1 5/9] net: ethtool: Make helpers public Andrew Lunn
2020-04-25 18:06 ` [PATCH net-next v1 6/9] net: ethtool: Add infrastructure for reporting cable test results Andrew Lunn
2020-04-25 18:06 ` [PATCH net-next v1 7/9] net: ethtool: Add helpers for reporting " Andrew Lunn
2020-04-25 18:06 ` [PATCH net-next v1 8/9] net: phy: marvell: Add cable test support Andrew Lunn
2020-04-25 18:06 ` [PATCH net-next v1 9/9] net: phy: Put interface into oper testing during cable test Andrew Lunn
2020-04-29 16:02 ` [PATCH net-next v1 0/9] Ethernet Cable test support Michael Walle
2020-04-29 16:32   ` Andrew Lunn
2020-04-30 17:48     ` Michael Walle
2020-04-30 18:23       ` Andrew Lunn
2020-04-30 19:44         ` Michael Walle
2020-04-30 20:51           ` Andrew Lunn
2020-04-30 18:34       ` Florian Fainelli
2020-04-30 19:31         ` Michael Walle
2020-04-30 19:38           ` Florian Fainelli
2020-04-30 19:52             ` Michael Walle
2020-04-30 19:41           ` Andrew Lunn
2020-04-30 20:01             ` Michael Walle
2020-04-30 20:56               ` Andrew Lunn [this message]
2020-04-30 20:04             ` Florian Fainelli
2020-04-30 20:13               ` Michael Walle
2020-04-30 20:19                 ` Florian Fainelli
2020-04-30 21:16                   ` Michael Walle

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