Re: [PATCH v2] tcp: splice as many packets as possible at once

David Miller
2009-01-30T22:15:45Z

From: Willy Tarreau <w@1wt.eu>
Date: Fri, 30 Jan 2009 23:13:46 +0100

> On Fri, Jan 30, 2009 at 02:03:46PM -0800, David Miller wrote:
> > Any NIC, even the dumbest ones, can be made to receive into pages.
>
> OK I thought that it was not always easy to split between headers
> and payload. I know that myri10ge can be configured to receive into
> either skbs or pages, but I was not sure about the real implications
> behind that.

For a dumb NIC you wouldn't split, you'd receive directly, the
entire packet, into part of a page.

Then right befire you give it to the stack, you pull the ethernet
header from the page into the linear area.