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Re: tx_timeout and timer serialisation

To: kuznet@xxxxxxxxxxxxx
Subject: Re: tx_timeout and timer serialisation
From: Bogdan Costescu <Bogdan.Costescu@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 3 May 2000 16:17:56 +0200 (CEST)
Cc: netdev@xxxxxxxxxxx
In-reply-to: <200005021549.TAA16319@xxxxxxxxxxxxx>
Sender: owner-netdev@xxxxxxxxxxx
On Tue, 2 May 2000 kuznet@xxxxxxxxxxxxx wrote:

> > I haven't studied it closely; it's a _very_ differently structured
> > driver from the norm.  I would guess that it has been ported from
> > another OS.  They ifdef all the spinlocks out of existence if !__SMP__. 
> > Interesting...
> Indeed 8) Where can I find it?

> Do not forget, it is under dev->xmit_lock!

Sorry, I didn't understand from this discussion if hard_start_xmit is
protected WRT itself outside the driver or the driver should implement
locks to assure that the xxx_start_xmit routine is not executed
simultaneously on 2 (or more) CPUs.


Bogdan Costescu

IWR - Interdisziplinaeres Zentrum fuer Wissenschaftliches Rechnen
Universitaet Heidelberg, INF 368, D-69120 Heidelberg, GERMANY
Telephone: +49 6221 54 8869, Telefax: +49 6221 54 8868
E-mail: Bogdan.Costescu@xxxxxxxxxxxxxxxxxxxxx

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