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 6194EC04A95 for ; Thu, 29 Sep 2022 02:14:18 +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=AYZxTjlN0ZsAHZ9sUyV6Jqgx20B00qm6aYFu4kZ3l+A=; b=vJ9ZICu0lNECa0pQONL1w+RwT2 Dw/OnV13KTEW6TAnD0hDZmReIBng2Llc+goovxCfRTnqUfbww4mP31bWssLrkWZ3dwCyLY1MJr8Va vwhIJfMYykX/J6ehApYWbuvCi57Tsdwh2t8shLvuKQTptlKvE9u6atXgkXvahYtHLFyU0B/8yQEiE nEpYRwEaYPvMAqnjGekaHcTPuOLHPQWKu1WV/rUWbRHcDAhVtmvK+DOueB1S5DgWuESOpyDyhGHiX 3rupvZfkaMwoCb4y1zhmDvHTdnPFIQY6Z6ljE88cSX+wWffl8ztxNMYxyC9HC4P9W83O5jeg4S4HN ghcCFc8A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1odj41-000wqD-HY; Thu, 29 Sep 2022 02:14:13 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1odj3y-000wmi-K3 for linux-nvme@lists.infradead.org; Thu, 29 Sep 2022 02:14:12 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1664417645; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=AYZxTjlN0ZsAHZ9sUyV6Jqgx20B00qm6aYFu4kZ3l+A=; b=cVTJPGoR6RbfpXOoQrCLJUIqpIss56yMTht5jsYD2THKi/GSFzCvJe3hTmjOW96l6bTQgt jwh/ydSkkbSqgqU/+AtdBwtZlNXIu6vD7kiLu0UBVDzMbPzxFr7MomQrUbSscn+ojgpiQ5 3QA0dy9GgzkWbCZyt4iIh8BuqUur9k0= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-633-UPKTh8PSOamkGE3pIoKIQQ-1; Wed, 28 Sep 2022 22:14:01 -0400 X-MC-Unique: UPKTh8PSOamkGE3pIoKIQQ-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 6B4B41C05135; Thu, 29 Sep 2022 02:14:01 +0000 (UTC) Received: from [10.22.8.53] (unknown [10.22.8.53]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9A7FB40C213F; Thu, 29 Sep 2022 02:14:00 +0000 (UTC) Message-ID: <410aeb5c-3045-59ac-3fc8-fe80a89b9119@redhat.com> Date: Wed, 28 Sep 2022 22:14:00 -0400 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.13.0 Subject: Re: [PATCH v2] nvmet: force reconnect when number of queue changes To: "Knight, Frederick" , Daniel Wagner Cc: Sagi Grimberg , "linux-nvme@lists.infradead.org" , Shinichiro Kawasaki , "hare@suse.de" References: <20220927143157.3659-1-dwagner@suse.de> <20220928074850.h6rwvwgz2oje3ebg@carbon.lan> <20220928090243.c4ctbj2frydwsfav@carbon.lan> <6e172046-53e7-d2cb-38b8-e87d725046de@redhat.com> <20220928152616.inzetc3fsvnhb3o5@carbon.lan> From: John Meneghini Organization: RHEL Core Storge Team In-Reply-To: X-Scanned-By: MIMEDefang 3.1 on 10.11.54.1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220928_191410_760701_30CAC257 X-CRM114-Status: GOOD ( 10.64 ) 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 9/28/22 14:02, Knight, Frederick wrote: > Reset and Disconnect are different. > > Reset uses registers (and therefore Get Property and Set Property commands) over a valid connection. > > Disconnect causes a reset (you have to reconnect to the reset controller) > Reset does not cause an immediate disconnect. OK, so you are saying that the rule "The controller shall not change the value allocated between resets" in NVMe 5.27.1.5 doesn't apply to fabric controllers? /John > Fred >