zero_copy in RTEMS
gds at chartertn.net
Fri Dec 19 22:17:38 UTC 2008
??? wrote, On 12/19/2008 07:14 AM:
> Hi all:
> Does anyone know how to implement zero copy in RTEMS ?
> Thanks in advance.
I assume you are referring to the tcp/ip stack? I think some DMA
controllers can put their inputs and accept outputs directly from BSD
mbufs (like EMAC on ppc405gpr controller). But I am not sure how many
other places (or even if) the packets are memcpy'd in the stack.
More information about the users