From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: [PATCH net-next 2/4] bnxt_en: Use NETIF_F_GRO_HW. Date: Mon, 04 Dec 2017 14:00:45 -0800 Message-ID: <1512424845.19682.64.camel@gmail.com> References: <1512385967-32339-1-git-send-email-michael.chan@broadcom.com> <1512385967-32339-3-git-send-email-michael.chan@broadcom.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit Cc: David Miller , Linux Netdev List To: Or Gerlitz , Michael Chan Return-path: Received: from mail-pg0-f45.google.com ([74.125.83.45]:38767 "EHLO mail-pg0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752861AbdLDWAs (ORCPT ); Mon, 4 Dec 2017 17:00:48 -0500 Received: by mail-pg0-f45.google.com with SMTP id f12so9189106pgo.5 for ; Mon, 04 Dec 2017 14:00:48 -0800 (PST) In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On Mon, 2017-12-04 at 23:06 +0200, Or Gerlitz wrote: > On Mon, Dec 4, 2017 at 8:11 PM, Michael Chan om> wrote: > > > All the logic is already in these 3 drivers in the tree.  You can > > see > > the additional logic in any of these drivers.  It's just that these > > drivers have been using NETIF_F_GRO to turn on this mode in > > hardware/firmware. > > What happens for tcp encaped by some udp tunnel, does > the HW know how to GRO that? Yes it does, at least for common encaps (GRE, SIT, IPIP)