From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: [net-next 03/12] i40e: Handle a single mss packet with more than 8 frags Date: Mon, 17 Nov 2014 06:31:27 -0800 Message-ID: <1416234687.5102.2.camel@edumazet-glaptop2.roam.corp.google.com> References: <1416031715-32498-1-git-send-email-jeffrey.t.kirsher@intel.com> <1416031715-32498-4-git-send-email-jeffrey.t.kirsher@intel.com> <1416075695.17262.86.camel@edumazet-glaptop2.roam.corp.google.com> <063D6719AE5E284EB5DD2968C1650D6D1C9F1E54@AcuExch.aculab.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: Jeff Kirsher , "davem@davemloft.net" , Serey Kong , "netdev@vger.kernel.org" , "nhorman@redhat.com" , "sassmann@redhat.com" , "jogreene@redhat.com" , Shannon Nelson To: David Laight Return-path: Received: from mail-ie0-f169.google.com ([209.85.223.169]:51020 "EHLO mail-ie0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752734AbaKQObY (ORCPT ); Mon, 17 Nov 2014 09:31:24 -0500 Received: by mail-ie0-f169.google.com with SMTP id y20so5183966ier.28 for ; Mon, 17 Nov 2014 06:31:23 -0800 (PST) In-Reply-To: <063D6719AE5E284EB5DD2968C1650D6D1C9F1E54@AcuExch.aculab.com> Sender: netdev-owner@vger.kernel.org List-ID: On Mon, 2014-11-17 at 14:15 +0000, David Laight wrote: > Didn't someone write a function that significantly reduces the > number of fragments without actually requiring a single linear block? I presume you refer to alloc_skb_with_frags() : It does the allocation, but I was expecting some kind soul to continue my work and provide the companion code to do the copy. http://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/?id=2e4e44107176d552f8bb1bb76053e850e3809841 So far nobody took care of it.