From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 55C2EC4167B for ; Wed, 6 Dec 2023 09:24:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=4RYf8+tqeX3IUwBxD0UySznuzapx40R7CguL98JU9as=; b=TL+mi14WtUEZs+omik5uYh2z29 HctTzE9NCdi2xMUqOQrC4aShLZX+oAs/Qdz/F7vnyqSW08pH4MBifXFFjZchmjB3ATGgD8QVLFiHw 1OuQnGkwEub/QIQJj/oVbLkpcszZwgH7Ui3EaZ/J497Hew1wcQq11TJRVvDNIlfrEL4ic5dqjjqHK sv52mI9lVYPy7HGUYwAAg+JyeRkEazgx1HnatVVSO4QMC+1jYXil/hB/2P74Lto2UzTMUCB/uhKJ/ +NqCGdNbbKOtrRqfuWrfBCvs14tjwnN7eO/jkk8jfC/v5yJ2qqlIZc7X+DGTj09iSpFv1cz9ly97U eojCwhxw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rAo8q-009XuA-1R; Wed, 06 Dec 2023 09:24:28 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rAo8o-009Xt9-0b for linux-nvme@lists.infradead.org; Wed, 06 Dec 2023 09:24:27 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id B04CF227AA8; Wed, 6 Dec 2023 10:24:20 +0100 (CET) Date: Wed, 6 Dec 2023 10:24:20 +0100 From: Christoph Hellwig To: Werner Sembach Cc: Keith Busch , Jens Axboe , Christoph Hellwig , Sagi Grimberg , Georg Gottleuber , linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] nvme-pci: Add sleep quirk for Kingston drives Message-ID: <20231206092420.GA27348@lst.de> References: <20230920085210.22573-1-wse@tuxedocomputers.com> <12d32e8e-e20b-4023-8299-39d2a69c0cd9@tuxedocomputers.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <12d32e8e-e20b-4023-8299-39d2a69c0cd9@tuxedocomputers.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231206_012426_364107_EEB14DAA X-CRM114-Status: GOOD ( 10.31 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org What does save a lot of power mean, and why does it only apply to some platforms? I suspect the more likely case is that APST is simply completely broken on this device?