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[2620:137:e000::1:20]) by mx.google.com with ESMTP id qa10-20020a170907868a00b007308396d8eesi13655189ejc.780.2022.08.31.20.05.40; Wed, 31 Aug 2022 20:06:07 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=YRsh1yfq; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232731AbiIACgX (ORCPT + 99 others); Wed, 31 Aug 2022 22:36:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41888 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230437AbiIACgV (ORCPT ); Wed, 31 Aug 2022 22:36:21 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DBBBDEEC7E; Wed, 31 Aug 2022 19:36:20 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 838A6B823CD; Thu, 1 Sep 2022 02:36:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E8C88C433D6; Thu, 1 Sep 2022 02:36:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1661999778; bh=iDgU5RZFbyahMadS6JY2dQFR3WMXl0VHBx0XFhI1uUE=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=YRsh1yfqG+f4Rv8Zar3rYUjCqJnyk346JYw9/RIiV4BxSlC61YoZpCbanlbWh3rZS KuoC9AwOzIVGOE0UAKRxnkrU5PeQI0rMgGe3q6FqwaRjzcum/b3THSDvo5rAtFf1JL SoT0XibgrjJrr/xldI8yIUBBkzsZpOyOYo7IPktsS9Yw31pzzBz1gOnxblHFKt+l5w e9+iMvYlhsUVidW51dNxexczrWmlHNWR5HCIRBS76cvzBXay1FnZnxYp92xRouXZd8 OiYx9ilgTi6TbCRu4HLdWPB8rsNHm1nFl4hczAz8HKlRFDkZ3fnMFzp32Fe0cEu0KM 4VqM4Rfujh6RA== Date: Wed, 31 Aug 2022 19:36:17 -0700 From: Jakub Kicinski To: wei.fang@nxp.com Cc: davem@davemloft.net, edumazet@google.com, pabeni@redhat.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net] net: fec: add pm_qos support on imx6q platform Message-ID: <20220831193617.40d7aeed@kernel.org> In-Reply-To: <20220830070148.2021947-1-wei.fang@nxp.com> References: <20220830070148.2021947-1-wei.fang@nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 30 Aug 2022 15:01:48 +0800 wei.fang@nxp.com wrote: > There is a very low probability that tx timeout will occur during > suspend and resume stress test on imx6q platform. So we add pm_qos > support to prevent system from entering low level idles which may > affect the transmission of tx. Any more info on the issue? Is there an errata for it? What's the expected power consumption change?