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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 D6A72C48BC3 for ; Mon, 19 Feb 2024 11:59:04 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rc2HZ-00011W-3q; Mon, 19 Feb 2024 06:58:01 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rc2HX-0000zy-PG for qemu-devel@nongnu.org; Mon, 19 Feb 2024 06:57:59 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rc2HV-0004z1-9x for qemu-devel@nongnu.org; Mon, 19 Feb 2024 06:57:59 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1708343876; 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=565u4oX+vdHT2+8d0QDIZ0erZw23D5tg7C1zUPxbMxw=; b=LAhyKG3YtPlolM1YThcIxXSOSrPmap5j/Pl2S+bd1KeSZlDoE1CH3gX37AnkHTu6AMFuND funWOBS70sthfAJMOQ1qmQebd3xcjMvYkfxZALSdypaRaVVCTtfeN1ZYXyAGCMX9Jd5BEl +zF6MZlsOR1x6cnMss0wFskIGRr5SHQ= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-687-57YS_KveMOGrjpowAcbDIA-1; Mon, 19 Feb 2024 06:57:51 -0500 X-MC-Unique: 57YS_KveMOGrjpowAcbDIA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id BC8301064C67; Mon, 19 Feb 2024 11:57:50 +0000 (UTC) Received: from blackfin.pond.sub.org (unknown [10.39.192.55]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 492A72166B31; Mon, 19 Feb 2024 11:57:50 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 9B56321E66D0; Mon, 19 Feb 2024 12:57:44 +0100 (CET) From: Markus Armbruster To: Sam Li Cc: qemu-devel@nongnu.org, dlemoal@kernel.org, Hanna Reitz , dmitry.fomichev@wdc.com, qemu-block@nongnu.org, Eric Blake , hare@suse.de, Kevin Wolf , stefanha@redhat.com Subject: Re: [PATCH v7 2/4] qcow2: add configurations for zoned format extension In-Reply-To: <20240122184830.40094-3-faithilikerun@gmail.com> (Sam Li's message of "Mon, 22 Jan 2024 19:48:28 +0100") References: <20240122184830.40094-1-faithilikerun@gmail.com> <20240122184830.40094-3-faithilikerun@gmail.com> Date: Mon, 19 Feb 2024 12:57:44 +0100 Message-ID: <87plwsfyyv.fsf@pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 Received-SPF: pass client-ip=170.10.129.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.077, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org I apologize for the delayed review. Sam Li writes: > To configure the zoned format feature on the qcow2 driver, it > requires settings as: the device size, zone model, zone size, > zone capacity, number of conventional zones, limits on zone > resources (max append bytes, max open zones, and max_active_zones). > > To create a qcow2 image with zoned format feature, use command like > this: > qemu-img create -f qcow2 zbc.qcow2 -o size=768M \ > -o zone.size=64M -o zone.capacity=64M -o zone.conventional_zones=0 \ > -o zone.max_append_bytes=4096 -o zone.max_open_zones=6 \ > -o zone.max_active_zones=8 -o zone.mode=host-managed > > Signed-off-by: Sam Li [...] > diff --git a/qapi/block-core.json b/qapi/block-core.json > index ca390c5700..e2e0ec21a5 100644 > --- a/qapi/block-core.json > +++ b/qapi/block-core.json > @@ -5038,6 +5038,67 @@ > { 'enum': 'Qcow2CompressionType', > 'data': [ 'zlib', { 'name': 'zstd', 'if': 'CONFIG_ZSTD' } ] } > > +## > +# @Qcow2ZoneModel: > +# > +# Zoned device model used in qcow2 image file > +# > +# @host-managed: The host-managed model only allows sequential write over the > +# device zones. > +# > +# Since 8.2 > +## > +{ 'enum': 'Qcow2ZoneModel', > + 'data': [ 'host-managed'] } > + > +## > +# @Qcow2ZoneHostManaged: > +# > +# The host-managed zone model. It only allows sequential writes. > +# > +# @size: Total number of bytes within zones. Default? > +# > +# @capacity: The number of usable logical blocks within zones > +# in bytes. A zone capacity is always smaller or equal to the > +# zone size. Default? > +# > +# @conventional-zones: The number of conventional zones of the > +# zoned device (default 0). > +# > +# @max-open-zones: The maximal number of open zones. It is less than > +# or equal to the number of sequential write required zones of > +# the device (default 0). > +# > +# @max-active-zones: The maximal number of zones in the implicit > +# open, explicit open or closed state. It is less than or equal > +# to the max open zones (default 0). > +# > +# @max-append-bytes: The maximal number of bytes of a zone > +# append request that can be issued to the device. It must be > +# 512-byte aligned and less than the zone capacity. Default? > +# > +# Since 8.2 > +## > +{ 'struct': 'Qcow2ZoneHostManaged', > + 'data': { '*size': 'size', > + '*capacity': 'size', > + '*conventional-zones': 'uint32', > + '*max-open-zones': 'uint32', > + '*max-active-zones': 'uint32', > + '*max-append-bytes': 'size' } } > + > +## > +# @Qcow2ZoneCreateOptions: > +# > +# The zone device model for the qcow2 image. > +# > +# Since 8.2 > +## > +{ 'union': 'Qcow2ZoneCreateOptions', > + 'base': { 'mode': 'Qcow2ZoneModel' }, > + 'discriminator': 'mode', > + 'data': { 'host-managed': 'Qcow2ZoneHostManaged' } } > + > ## > # @BlockdevCreateOptionsQcow2: > # > @@ -5080,6 +5141,9 @@ > # @compression-type: The image cluster compression method > # (default: zlib, since 5.1) > # > +# @zone: The zone device model modes. The default is that the device is > +# not zoned. (since 8.2) > +# > # Since: 2.12 > ## > { 'struct': 'BlockdevCreateOptionsQcow2', > @@ -5096,7 +5160,8 @@ > '*preallocation': 'PreallocMode', > '*lazy-refcounts': 'bool', > '*refcount-bits': 'int', > - '*compression-type':'Qcow2CompressionType' } } > + '*compression-type':'Qcow2CompressionType', > + '*zone': 'Qcow2ZoneCreateOptions' } } > > ## > # @BlockdevCreateOptionsQed: