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=-4.3 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 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 03359C433DB for ; Fri, 12 Feb 2021 18:09:16 +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 B4B7964DBA for ; Fri, 12 Feb 2021 18:09:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B4B7964DBA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com 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=JCuBSmyGQOkuVjpdh4srl+xDMmGHhur1kL7QmzuRPBE=; b=kwjavNiaOlMmLFjiB2dwXgMGE BdrMxOkgpeSvR+sc4fQV//O6TR3oE84diLjdVI1FMQHHsH7gj14GZPlD0UDjFx/VD8HG0WFmsxDti zsv7JPqKdcM0fo5MVriSCG/VDAI+hxh0PIR5PuK2eNz1VovTAYBDql2RaaankKeDARSoNPY3J3f/z tqedvUlBqANo0h42MD00BzzutUXd/sK1i+h4sEAB5oIwhqa9TKtMXY5NSy0598wrGOts1MFY2xHb0 LkbVV/YdAhWwzYmv2NYgzJpzPqtw/rs/wtvCK+rstQukRrsTiR2tAl3qOqG9KBaDdaEJnedcNAM/c 6Q81yCMjg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lAcsM-00052C-Ho; Fri, 12 Feb 2021 18:09:06 +0000 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1lAcsH-00051Y-UD for linux-nvme@lists.infradead.org; Fri, 12 Feb 2021 18:09:03 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1613153341; 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: in-reply-to:in-reply-to:references:references; bh=IsKCNOETLXXhO0vv4Uv4utq9x/Y2rRSM/dS8wn5MRYQ=; b=AxH4rHpWe6SICotjqRisRp8JlHpKQyXnDsvPYDTvtXcfObmVLqG6EJtDDwrlAKPjptjzmQ TfvdKMH9mRL3aywii1kS0EB1gx3Loi+mFrM7h08/3q/prgxM5O74SZmmQ8tidE0FONSLj1 nAkiFKZnlkNVdkofk+t8mCIp2atA/6g= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-410-R1WhqZ39Npi4u-1T5zwSEw-1; Fri, 12 Feb 2021 13:06:44 -0500 X-MC-Unique: R1WhqZ39Npi4u-1T5zwSEw-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 2FB5D1934104; Fri, 12 Feb 2021 18:06:42 +0000 (UTC) Received: from localhost (ovpn-114-86.phx2.redhat.com [10.3.114.86]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 40A4F19D6C; Fri, 12 Feb 2021 18:06:41 +0000 (UTC) Date: Fri, 12 Feb 2021 10:06:39 -0800 From: Chris Leech To: Shai Malin Subject: Re: [RFC PATCH v3 00/11] NVMeTCP Offload ULP and QEDN Device Driver Message-ID: <20210212180639.GA511742@localhost> References: <20210207181324.11429-1-smalin@marvell.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210207181324.11429-1-smalin@marvell.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210212_130902_281419_2D5E7CB6 X-CRM114-Status: GOOD ( 12.26 ) 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: aelior@marvell.com, sagi@grimberg.me, mkalderon@marvell.com, netdev@vger.kernel.org, linux-nvme@lists.infradead.org, kuba@kernel.org, malin1024@gmail.com, nassa@marvell.com, Erik.Smith@dell.com, pkushwaha@marvell.com, davem@davemloft.net, Douglas.Farley@dell.com 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 Sun, Feb 07, 2021 at 08:13:13PM +0200, Shai Malin wrote: > Queue Initialization: > ===================== > The nvme-tcp-offload ULP module shall register with the existing > nvmf_transport_ops (.name = "tcp_offload"), nvme_ctrl_ops and blk_mq_ops. > The nvme-tcp-offload vendor driver shall register to nvme-tcp-offload ULP > with the following ops: > - claim_dev() - in order to resolve the route to the target according to > the net_dev. > - create_queue() - in order to create offloaded nvme-tcp queue. > > The nvme-tcp-offload ULP module shall manage all the controller level > functionalities, call claim_dev and based on the return values shall call > the relevant module create_queue in order to create the admin queue and > the IO queues. Hi Shai, How well does this claim_dev approach work with multipathing? Is it expected that providing HOST_TRADDR is sufficient control over which offload device will be used with multiple valid paths to the controller? - Chris _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme