Messages in this thread |  | | Date | Fri, 7 Feb 2003 11:04:59 +0100 (CET) | Subject | Re: zero copy | From | "Emiliano Gabrielli" <> |
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<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"
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