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 BE17EC83F1A for ; Fri, 18 Jul 2025 04:17:52 +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:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=w9vrmDwC7GSP/HjwfL8hCun60jTbZ7dfzJqbKNj2D+M=; b=DmjrN80E7MdAkz5IdDr24L4Jfk TLGvUV+tTK7KqN0gqYHU4sLrv6HaPMcD27Qsqg1ma9qyKBgUbSdHmWDotoPCyniRb6/3bUOiyCrag lgyEzA9plJ00OkdA5fl9yVDH+sj92Uva4Qy3zrCF1XU7EZyHclaODkhqb2dCayTSXr7V7K5iOuvUk ezq9EDGy0r1jvZgiM0J52eCo4ieruUW1WgdfKp244vl8OvSY+yr078YNToV5Sl6qTZdhZapGGXvoS HdGnKJVmuqtWfw/SQjeAjeQQYKbSM6G7p/crb0Yw0RdJTx98ZZRHlBuy6YzkCQebBKNPfgEgPRTpP QBQYt35g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uccXf-0000000BeXI-1bAk; Fri, 18 Jul 2025 04:17:51 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uccXc-0000000BeW5-3EEI for linux-nvme@lists.infradead.org; Fri, 18 Jul 2025 04:17:49 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 2D2025C5600; Fri, 18 Jul 2025 04:17:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5AD53C4CEED; Fri, 18 Jul 2025 04:17:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752812267; bh=LOklqSzGHoQD0d7uT40vyIYyMJHO3OMdOsB29FK9GbI=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=lnJdt8bBIYjq0rWnPqDQzRXiXVd40nRloAeNETT83Tm7l4WS3RaFOtPhVv7ra4xOa B/tNKa69+dvAGsT5ves1g2w2qU7QGP3b4vA4SbNBr4JMLkhSQzYjXTsdNwCsn1Qjl7 W+YHTyTVTaBelUMyiFkKYWYPE2mQ3RNyTkVPo/hKNjUBvoPmmKjORYB+1qnP2Ol6nJ Mg7S9pBeGzqEPyg0fHQpz2JS/beMSeJarN75mQo/oqPTGY6TLhHHWeYdwlipWX1JN7 2wq6cwubagcA2FRr4Xas++IFqtQw+XDkhjt1+/wpD76D1b2LHgcZIdYm2RBkOiK0xU Fz1Uh/UA4U8cg== Message-ID: Date: Fri, 18 Jul 2025 13:17:44 +0900 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 2/2] nvme: prevent admin controller from smart log fetch (LID 2) To: Kamaljit Singh , kbusch@kernel.org, axboe@kernel.dk, hch@lst.de, sagi@grimberg.me, linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org Cc: cassel@kernel.org References: <20250718001415.3774178-1-kamaljit.singh1@wdc.com> <20250718001415.3774178-3-kamaljit.singh1@wdc.com> Content-Language: en-US From: Damien Le Moal Organization: Western Digital Research In-Reply-To: <20250718001415.3774178-3-kamaljit.singh1@wdc.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250717_211748_850612_9336A618 X-CRM114-Status: UNSURE ( 7.62 ) X-CRM114-Notice: Please train this message. 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 On 2025/07/18 9:14, Kamaljit Singh wrote: > Similar to a discovery ctrl, prevent an admin-ctrl from getting a smart > log. LID 2 is optional for admin controllers to support. > > In the future when support for LID=0 (supported log pages) is added, > GLP accesses can be made smarter by basing such calls on response > from LID=0 reads. > > Reference: NVMe Base rev 2.2, sec 3.1.3.5, fig 31. > Signed-off-by: Kamaljit Singh Reviewed-by: Damien Le Moal -- Damien Le Moal Western Digital Research