[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: zero copy



<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"


--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive:       http://mail.nl.linux.org/kernelnewbies/
FAQ:           http://kernelnewbies.org/faq/