From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net-next] sfc: don't rearm interrupts if busy polling Date: Mon, 06 Feb 2017 11:59:47 -0500 (EST) Message-ID: <20170206.115947.1451263729529424407.davem@davemloft.net> References: Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, linux-net-drivers@solarflare.com, edumazet@google.com To: bkenward@solarflare.com Return-path: Received: from shards.monkeyblade.net ([184.105.139.130]:43080 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751164AbdBFQ7t (ORCPT ); Mon, 6 Feb 2017 11:59:49 -0500 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: From: Bert Kenward Date: Mon, 6 Feb 2017 16:50:55 +0000 > Since commit 364b6055738b ("net: busy-poll: return busypolling status > to drivers"), napi_complete_done() returns a boolean that can be used > by drivers to conditionally rearm interrupts. > > Testing with a 7142 shows a small latency improvement of ~100 ns. > > Signed-off-by: Bert Kenward Applied.