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Open Source and information security mailing list archives
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Date: Mon, 11 Dec 2017 15:47:54 +0100 From: Mason <slash.tmp@...e.fr> To: Mans Rullgard <mans@...sr.com> Cc: Florian Fainelli <f.fainelli@...il.com>, Andrew Lunn <andrew@...n.ch>, netdev <netdev@...r.kernel.org>, David Miller <davem@...emloft.net> Subject: Re: Waiting for the PHY to complete auto-negotiation 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. Regards.
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