From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David S. Miller" Subject: Re: A new driver for Broadcom bcm5706 Date: Fri, 20 May 2005 21:28:21 -0700 (PDT) Message-ID: <20050520.212821.88475745.davem@davemloft.net> References: <428E72F9.3070404@pobox.com> <20050520.164504.31639000.davem@davemloft.net> <428E7A53.1030907@pobox.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: mchan@broadcom.com, netdev@oss.sgi.com, ffan@broadcom.com, lusinsky@broadcom.com Return-path: To: jgarzik@pobox.com In-Reply-To: <428E7A53.1030907@pobox.com> Sender: netdev-bounce@oss.sgi.com Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org From: Jeff Garzik Subject: Re: A new driver for Broadcom bcm5706 Date: Fri, 20 May 2005 20:01:23 -0400 > David S.Miller wrote: > > From: Jeff Garzik > > Date: Fri, 20 May 2005 19:30:01 -0400 > > > > > >>Sure. What I'm driving at is that a checksum of zero seems to imply > >>CHECKSUM_NONE not CHECKSUM_UNNECESSARY. tg3 only does the 0xffff check. > > > > > > Sure, both ways are fine. > > huh? They are pretty different... one says "Checksum all good, dude" > and the other says "I didn't checksum, do it in software for me." > > right? 0x0000 is the UDP "no checksum" case, so if we say "in software" for that UDP will just let it pass through still, so the effect is that same.