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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E50AC433EF for ; Thu, 3 Feb 2022 16:06:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352066AbiBCQGl (ORCPT ); Thu, 3 Feb 2022 11:06:41 -0500 Received: from mail-pl1-f179.google.com ([209.85.214.179]:41517 "EHLO mail-pl1-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229993AbiBCQGk (ORCPT ); Thu, 3 Feb 2022 11:06:40 -0500 Received: by mail-pl1-f179.google.com with SMTP id z5so2520817plg.8; Thu, 03 Feb 2022 08:06:40 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=CQl5z9carncWUpCNFDhmSPdjShzBxxx7Om9xnHB+4lM=; b=gOjLlieapzUWlzb3LSnLiE1R6OdidnGchKr7V2soKZ8Ucoc1kHmqGwylRS6X3P+La/ 70egDDwyncV/ZihJvll8zR8zvw+avm7A2DpuGjdoRe5y3DXh0jMggo1dHOU3TNYDPrZl zYJ5mMg1L9SuKQ00P4QqbPlrTYTXsAKbpUlPW/padiFobSudhqyD+Tokgn7UJ5vrEoLR awm2aMS5NZ4Kisjl6US9wSZmEn33y5PwrPWvEetusXWmdo0yBHXlA47HGlg0H7Ck8/jd sXvJ1hUURopw3jSTKGvcfP/VwtMoDoUTbxPrVwlfNreFFu8jFXUy9+oPQnbjCGoliN6M Hfpw== X-Gm-Message-State: AOAM533qMihY3l+srdqrn82qmonz8ZD3ZbAxmQvAdurpIA+w0tUe1tNd WDW5wVitchC6ORvjhttHofA= X-Google-Smtp-Source: ABdhPJzhK8+95Srk1qUADNs99c7AM9hHsV465MsjDTT3FGN90VtQxc49I1xXzkBKwhRQs7yApS+AYA== X-Received: by 2002:a17:903:2305:: with SMTP id d5mr35376153plh.122.1643904399872; Thu, 03 Feb 2022 08:06:39 -0800 (PST) Received: from garbanzo (136-24-173-63.cab.webpass.net. [136.24.173.63]) by smtp.gmail.com with ESMTPSA id t7sm28321189pfj.138.2022.02.03.08.06.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Feb 2022 08:06:37 -0800 (PST) Date: Thu, 3 Feb 2022 08:06:33 -0800 From: Luis Chamberlain To: Adam Manzanares Cc: Mikulas Patocka , Javier =?utf-8?B?R29uesOhbGV6?= , Chaitanya Kulkarni , "linux-block@vger.kernel.org" , "linux-scsi@vger.kernel.org" , "dm-devel@redhat.com" , "linux-nvme@lists.infradead.org" , linux-fsdevel , Jens Axboe , "msnitzer@redhat.com >> msnitzer@redhat.com" , Bart Van Assche , "martin.petersen@oracle.com >> Martin K. Petersen" , "roland@purestorage.com" , Hannes Reinecke , "kbus @imap.gmail.com>> Keith Busch" , Christoph Hellwig , "Frederick.Knight@netapp.com" , "zach.brown@ni.com" , "osandov@fb.com" , "lsf-pc@lists.linux-foundation.org" , "djwong@kernel.org" , "josef@toxicpanda.com" , "clm@fb.com" , "dsterba@suse.com" , "tytso@mit.edu" , "jack@suse.com" , Kanchan Joshi Subject: Re: [RFC PATCH 3/3] nvme: add the "debug" host driver Message-ID: <20220203160633.rdwovqoxlbr3nu5u@garbanzo> References: <20220201102122.4okwj2gipjbvuyux@mpHalley-2> <20220202060154.GA120951@bgt-140510-bm01> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220202060154.GA120951@bgt-140510-bm01> Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Wed, Feb 02, 2022 at 06:01:13AM +0000, Adam Manzanares wrote: > BTW I think having the target code be able to implement simple copy without > moving data over the fabric would be a great way of showing off the command. Do you mean this should be implemented instead as a fabrics backend instead because fabrics already instantiates and creates a virtual nvme device? And so this would mean less code? Luis 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 us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 A7179C433F5 for ; Thu, 3 Feb 2022 16:07:00 +0000 (UTC) Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-228-HI2ctO6hOYOp9S60fv4QRA-1; Thu, 03 Feb 2022 11:06:55 -0500 X-MC-Unique: HI2ctO6hOYOp9S60fv4QRA-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 BAA951966322; Thu, 3 Feb 2022 16:06:50 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 66F2823779; Thu, 3 Feb 2022 16:06:50 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id BD8614BB7C; Thu, 3 Feb 2022 16:06:49 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 213G6jZL016076 for ; Thu, 3 Feb 2022 11:06:45 -0500 Received: by smtp.corp.redhat.com (Postfix) id 39346C23DC4; Thu, 3 Feb 2022 16:06:45 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast02.extmail.prod.ext.rdu2.redhat.com [10.11.55.18]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 34DCBC23DC3 for ; Thu, 3 Feb 2022 16:06:45 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-2.mimecast.com [207.211.31.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 1A6DE804181 for ; Thu, 3 Feb 2022 16:06:45 +0000 (UTC) Received: from mail-pj1-f49.google.com (mail-pj1-f49.google.com [209.85.216.49]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-553--MWfaNzRPBKySPND4fRHxg-1; Thu, 03 Feb 2022 11:06:41 -0500 X-MC-Unique: -MWfaNzRPBKySPND4fRHxg-1 Received: by mail-pj1-f49.google.com with SMTP id h12so2824052pjq.3; Thu, 03 Feb 2022 08:06:40 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=CQl5z9carncWUpCNFDhmSPdjShzBxxx7Om9xnHB+4lM=; b=A5v+XGg/Nd7Oub8/tssN8+DD/G32yWz6IIaTwvegEQAY8o8e32uDZR5+13WGUlel9r UHaSjFaCh8CU1NjuhG4MAcOf3Q5Dg1IYfrWnwIRlRtqDI3Ajont/fRM/oEk3ActiuQfa NLmv8JZamzBAbXx1c/jrdfoumNveAPaxV8FFQLJE0uhrjSf+YRUqkN89rh2QqBE9OG/g LfivJqnS3d9pIA36BZQyxxXAHbvOhw3D0grwTXjtkG0AyOCwmANQsGww7sJOfBlXlCK1 CmgBZ5NKTylTVM3ClTIoEdm7z1upV4p7gBnALfCLGkpE24PWpGlTbfjMWPflpFdX/Yev /HRg== X-Gm-Message-State: AOAM530ZF3sZeq87v/wQ3+IZcy63sQYYZsaqyOlYzRRStnABA8dal6mx o/Gq8gUiRRh5SZ93znrlOzs= X-Google-Smtp-Source: ABdhPJzhK8+95Srk1qUADNs99c7AM9hHsV465MsjDTT3FGN90VtQxc49I1xXzkBKwhRQs7yApS+AYA== X-Received: by 2002:a17:903:2305:: with SMTP id d5mr35376153plh.122.1643904399872; Thu, 03 Feb 2022 08:06:39 -0800 (PST) Received: from garbanzo (136-24-173-63.cab.webpass.net. [136.24.173.63]) by smtp.gmail.com with ESMTPSA id t7sm28321189pfj.138.2022.02.03.08.06.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Feb 2022 08:06:37 -0800 (PST) Date: Thu, 3 Feb 2022 08:06:33 -0800 From: Luis Chamberlain To: Adam Manzanares Message-ID: <20220203160633.rdwovqoxlbr3nu5u@garbanzo> References: <20220201102122.4okwj2gipjbvuyux@mpHalley-2> <20220202060154.GA120951@bgt-140510-bm01> MIME-Version: 1.0 In-Reply-To: <20220202060154.GA120951@bgt-140510-bm01> X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.85 on 10.11.54.8 X-loop: dm-devel@redhat.com Cc: "djwong@kernel.org" , "linux-nvme@lists.infradead.org" , "clm@fb.com" , "dm-devel@redhat.com" , "osandov@fb.com" , Javier =?utf-8?B?R29uesOhbGV6?= , Bart Van Assche , "linux-scsi@vger.kernel.org" , Christoph Hellwig , "roland@purestorage.com" , "zach.brown@ni.com" , "dsterba@suse.com" , Chaitanya Kulkarni , "msnitzer@redhat.com >> msnitzer@redhat.com" , "josef@toxicpanda.com" , "linux-block@vger.kernel.org" , Mikulas Patocka , "kbus @imap.gmail.com>> Keith Busch" , "Frederick.Knight@netapp.com" , Jens Axboe , "tytso@mit.edu" , Kanchan Joshi , "martin.petersen@oracle.com >> Martin K. Petersen" , "jack@suse.com" , linux-fsdevel , "lsf-pc@lists.linux-foundation.org" Subject: Re: [dm-devel] [RFC PATCH 3/3] nvme: add the "debug" host driver X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Wed, Feb 02, 2022 at 06:01:13AM +0000, Adam Manzanares wrote: > BTW I think having the target code be able to implement simple copy without > moving data over the fabric would be a great way of showing off the command. Do you mean this should be implemented instead as a fabrics backend instead because fabrics already instantiates and creates a virtual nvme device? And so this would mean less code? Luis -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel