From: "Måns Rullgård" <mans@mansr•com>
To: Mason <slash.tmp@free•fr>
Cc: Florian Fainelli <f.fainelli@gmail•com>,
Andrew Lunn <andrew@lunn•ch>, netdev <netdev@vger•kernel.org>,
David Miller <davem@davemloft•net>
Subject: Re: Waiting for the PHY to complete auto-negotiation
Date: Mon, 11 Dec 2017 16:32:53 +0000 [thread overview]
Message-ID: <yw1xtvwxtebu.fsf@mansr.com> (raw)
In-Reply-To: <e968c0cf-f69f-7f1d-a0db-b856f4c50755@free.fr> (Mason's message of "Mon, 11 Dec 2017 15:47:54 +0100")
Mason <slash.tmp@free•fr> writes:
> On 11/12/2017 15:36, Måns Rullgård wrote:
>
>> Mason writes:
>>
>>> I suppose I should test forcefully setting the enable bit to 0 in
>>> the driver, and see if hell breaks loose.
>>
>> You can't. When the enable bit is 1, writes to that register are
>> ignored. It goes back to 0 automatically when the hw runs out of
>> descriptors.
>
> I don't think they are ignored, because toggling the control flow
> bit actually breaks RX.
Oh, then it's even worse than the docs suggest.
--
Måns Rullgård
prev parent reply other threads:[~2017-12-11 16:32 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-06 16:39 Waiting for the PHY to complete auto-negotiation Mason
2017-12-06 16:59 ` Andrew Lunn
2017-12-06 18:03 ` Mason
2017-12-06 18:26 ` Andrew Lunn
2017-12-06 19:00 ` Mason
2017-12-06 19:07 ` Andrew Lunn
2017-12-06 19:25 ` Mason
2017-12-06 23:00 ` Florian Fainelli
2017-12-07 16:17 ` Mason
2017-12-09 18:49 ` Florian Fainelli
2017-12-11 14:29 ` Mason
2017-12-11 14:36 ` Måns Rullgård
2017-12-11 14:47 ` Mason
2017-12-11 16:32 ` Måns Rullgård [this message]
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