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From: Richard Cochran <richardcochran@gmail.com>
To: Hubert Feurstein <h.feurstein@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>, netdev <netdev@vger.kernel.org>,
	lkml <linux-kernel@vger.kernel.org>,
	Vivien Didelot <vivien.didelot@gmail.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH net-next v2] net: dsa: mv88e6xxx: extend PTP gettime function to read system clock
Date: Mon, 5 Aug 2019 10:29:20 -0700	[thread overview]
Message-ID: <20190805172920.GB1552@localhost> (raw)
In-Reply-To: <CAFfN3gVFjb0uaF_NSHSOZN2knNn7nK3ZKRnvZDSN9A=+1qa-+A@mail.gmail.com>

On Mon, Aug 05, 2019 at 07:12:40PM +0200, Hubert Feurstein wrote:
> It got improved, but you still have the unpredictable latencies caused by the
> mdio_done-completion (=> wait_for_completion_timeout) in imx_fec.

Yes, that is the important point.

Please take a look at other mmi_bus.write() implementations and see if
you can place the timestamps into the mii_bus layer.

Thanks,
Richard

  reply	other threads:[~2019-08-05 17:29 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-05  8:26 [PATCH net-next v2] net: dsa: mv88e6xxx: extend PTP gettime function to read system clock Hubert Feurstein
2019-08-05 13:58 ` Andrew Lunn
2019-08-05 17:12   ` Hubert Feurstein
2019-08-05 17:29     ` Richard Cochran [this message]
2019-08-05 17:40     ` Andrew Lunn

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