On Wed, 12 May 2004 16:18:28 -0700 "shanthi kiran pendyala" <skiranp@cisco.com> wrote: > Hi, > > Could someone please point me to resources on how to write a zero-copy > driver? Are there any reference implementation available in the public > domain ? What do you mean by a zero-copy driver. Many of the better PCI devices do DMA directly from/to the socket buffer. Doing zero-copy from the application through the protocol is not a network driver issue. When doing sendfile() it is possible to get less copies (not necessarily zero), and if/when network aio is done that should have less copies. ----------------------------------------------------- Anyway if I told you, I would have to patent it ;-) (see http://kerneltrap.org/node/view/3085) - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
