From: "Emiliano Gabrielli" <emiliano.gabrielli@roma2.infn.it>
To: <linux-kernel@vger.kernel.org>, <kernelnewbies@nl.linux.org>
Subject: Re: zero copy
Date: Fri, 7 Feb 2003 11:04:59 +0100 (CET) [thread overview]
Message-ID: <40163.141.108.16.102.1044612299.squirrel@webmail.roma2.infn.it> (raw)
<quote who="Venkat Raghu">
>
>
> Hi,
>
> What is zero copy mechanism in ethernet drivers.
>
> Regards
> Venkat
Zero copy is intended to bypass the need of copying the user space buffer in kernel
space via copy_from_user.
It is achieved by mapping dma buffer in user space for exaple so that eth driver can
directly use them for dma
--
Emiliano Gabrielli
dip. di Fisica
2° Università di Roma "Tor Vergata"
--
Emiliano Gabrielli
dip. di Fisica
2° Università di Roma "Tor Vergata"
next reply other threads:[~2003-02-07 9:55 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-07 10:04 Emiliano Gabrielli [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-12-06 12:09 zero copy kernel coder
2005-12-06 12:28 ` Steven Whitehouse
2003-02-06 23:07 Venkat Raghu
2002-03-12 8:59 Rogier Wolff
2002-03-12 9:07 ` Andi Kleen
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