From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David S. Miller" Subject: Re: e1000 performance hack for ppc64 (Power4) Date: Fri, 13 Jun 2003 22:36:34 -0700 (PDT) Sender: netdev-bounce@oss.sgi.com Message-ID: <20030613.223634.74746570.davem@redhat.com> References: <20030613223841.GB32097@krispykreme> <20030613.154634.74748085.davem@redhat.com> <3EEAAFA6.9080609@us.ibm.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: anton@samba.org, haveblue@us.ibm.com, hdierks@us.ibm.com, scott.feldman@intel.com, dwg@au1.ibm.com, linux-kernel@vger.kernel.org, milliner@us.ibm.com, ricardoz@us.ibm.com, twichell@us.ibm.com, netdev@oss.sgi.com Return-path: To: niv@us.ibm.com In-Reply-To: <3EEAAFA6.9080609@us.ibm.com> Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org From: Nivedita Singhvi Date: Fri, 13 Jun 2003 22:16:22 -0700 Yep, but it really doesn't have too many options (sic pun ;)).. i.e. The max the options can add are 40 bytes, speaking strictly TCP, not IP. This really should fit into one extra cacheline for most architectures, at most, right? It's what the bottom of the header is aligned to, but we build the packet top to bottom not the other way around.