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 X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8645AC433E0 for ; Wed, 3 Feb 2021 11:26:55 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2C7B264F67 for ; Wed, 3 Feb 2021 11:26:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2C7B264F67 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=yEruRtUy1mDnrww+lXN/cRgtWZ7H3lhTYaQEwFQAttE=; b=VGr3nbg2RmGwkO5spbkYe6CqI yv5oxeZ7Capq1vxtWMPSEpma5CpfYoyzr6tpfGD9yjOD6asE24CjdFeAAaNEuvwYkAmvZzLQgeGrx k7Ix8VvhcrsqeFa/jkgkQOCSXq1TzIL0NUqXqiNuAYBq7cjdPGg0WLPvQIDU9/IPBG4Pcm44KB9D6 p1La+ZbVk6KG2k6JItBgVfLvHDz5jj60QweHvorBxMnP5nHaEYO/BlMkcr/uEDHy8WALfQe3v+xzE /SDmEJSsw+8dNnizg/rOZ1dH+aFDCVdxxRKVu3c40iq1L1sXPmqzAHsPp/YRgTNqLxby7ljY0QZ6F OuAzhfv3Q==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l7GJ9-000269-SF; Wed, 03 Feb 2021 11:26:51 +0000 Received: from verein.lst.de ([213.95.11.211]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l7GJ7-00025H-NJ for linux-nvme@lists.infradead.org; Wed, 03 Feb 2021 11:26:50 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 0361B67357; Wed, 3 Feb 2021 12:26:46 +0100 (CET) Date: Wed, 3 Feb 2021 12:26:45 +0100 From: Christoph Hellwig To: Filippo Sironi Subject: Re: [PATCH] nvme: Add 48-bit DMA address quirk Message-ID: <20210203112645.GA11942@lst.de> References: <20210203094338.19473-1-sironi@amazon.de> <20210203095148.GA8897@lst.de> <0c38f5eb-41ef-7934-940b-77b6e73c5239@amazon.de> <20210203111548.GA11075@lst.de> <396b45d5-3dd5-8159-34c2-5668510d1d68@amazon.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <396b45d5-3dd5-8159-34c2-5668510d1d68@amazon.de> 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-20210203_062649_882692_D1242227 X-CRM114-Status: GOOD ( 10.74 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: sagi@grimberg.me, serebrin@amazon.com, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, axboe@fb.com, kbusch@kernel.org, Christoph Hellwig , dwmw@amazon.co.uk Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Wed, Feb 03, 2021 at 12:22:31PM +0100, Filippo Sironi wrote: > To avoid issues, it is easier to apply the quirk to all Amazon NVMe > controllers for now till the new lines of controllers with the fix comes > out. At that point, we'll be able to restrict the application to the known > bad controllers. No, that is simply not acceptable. For one we've had enough cases where knowlege about old devices was lost after a decade or so. And secondly shipping more of these broken devices should be as painful as possible for you so that it preferably does not happen at all. _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme