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From: Bart Van Assche <bvanassche@acm.org>
To: Jens Axboe <axboe@kernel.dk>,
	Pankaj Raghav <p.raghav@samsung.com>,
	hch@lst.de, Keith Busch <kbusch@kernel.org>
Cc: jaegeuk@kernel.org, agk@redhat.com, gost.dev@samsung.com,
	snitzer@kernel.org, damien.lemoal@opensource.wdc.com,
	linux-kernel@vger.kernel.org, hare@suse.de,
	matias.bjorling@wdc.com, Johannes.Thumshirn@wdc.com,
	linux-block@vger.kernel.org, linux-nvme@lists.infradead.org,
	pankydev8@gmail.com, dm-devel@redhat.com,
	"Martin K. Petersen" <martin.petersen@oracle.com>
Subject: Re: [PATCH v15 00/13] support zoned block devices with non-power-of-2 zone sizes
Date: Mon, 24 Oct 2022 12:02:44 -0700	[thread overview]
Message-ID: <dc89c70e-4931-baaf-c450-6801c200c1d7@acm.org> (raw)
In-Reply-To: <90b6d45e-61a5-3eb3-7525-8467f1a67587@kernel.dk>

On 9/30/22 14:24, Jens Axboe wrote:
> Noted. I'll find some time to review this as well separately, once we're
> on the other side of the merge window.

Hi Jens,

Now that we are on the other side of the merge window: do you perhaps 
want Pankaj to repost this patch series? From what I have heard in 
several fora (JEDEC, SNIA) all flash storage vendors except one (WDC) 
are in favor of a contiguous LBA space and hence are in favor of 
supporting zone sizes that are not a power of two.

As you may know in JEDEC we are working on standardizing zoned storage 
for UFS devices. We (JEDEC JC-64.1 committee members) would like to know 
whether or not we should require that the UFS zone size should be a 
power of two.

Thank you,

Bart.



WARNING: multiple messages have this Message-ID (diff)
From: Bart Van Assche <bvanassche@acm.org>
To: Jens Axboe <axboe@kernel.dk>,
	Pankaj Raghav <p.raghav@samsung.com>,
	hch@lst.de, Keith Busch <kbusch@kernel.org>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
	pankydev8@gmail.com, matias.bjorling@wdc.com,
	gost.dev@samsung.com, damien.lemoal@opensource.wdc.com,
	snitzer@kernel.org, linux-kernel@vger.kernel.org,
	linux-nvme@lists.infradead.org, linux-block@vger.kernel.org,
	dm-devel@redhat.com, Johannes.Thumshirn@wdc.com,
	jaegeuk@kernel.org, agk@redhat.com
Subject: Re: [dm-devel] [PATCH v15 00/13] support zoned block devices with non-power-of-2 zone sizes
Date: Mon, 24 Oct 2022 12:02:44 -0700	[thread overview]
Message-ID: <dc89c70e-4931-baaf-c450-6801c200c1d7@acm.org> (raw)
In-Reply-To: <90b6d45e-61a5-3eb3-7525-8467f1a67587@kernel.dk>

On 9/30/22 14:24, Jens Axboe wrote:
> Noted. I'll find some time to review this as well separately, once we're
> on the other side of the merge window.

Hi Jens,

Now that we are on the other side of the merge window: do you perhaps 
want Pankaj to repost this patch series? From what I have heard in 
several fora (JEDEC, SNIA) all flash storage vendors except one (WDC) 
are in favor of a contiguous LBA space and hence are in favor of 
supporting zone sizes that are not a power of two.

As you may know in JEDEC we are working on standardizing zoned storage 
for UFS devices. We (JEDEC JC-64.1 committee members) would like to know 
whether or not we should require that the UFS zone size should be a 
power of two.

Thank you,

Bart.


--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel


  reply	other threads:[~2022-10-24 20:57 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20220923173619eucas1p13e645adbe1c8eb62fb48b52c0248ed65@eucas1p1.samsung.com>
2022-09-23 17:36 ` [PATCH v15 00/13] support zoned block devices with non-power-of-2 zone sizes Pankaj Raghav
2022-09-23 17:36   ` [dm-devel] " Pankaj Raghav
     [not found]   ` <CGME20220923173620eucas1p2ba21805261fe5ad86c38c0f52daeaa3a@eucas1p2.samsung.com>
2022-09-23 17:36     ` [PATCH v15 01/13] block: make bdev_nr_zones and disk_zone_no generic for npo2 zone size Pankaj Raghav
2022-09-23 17:36       ` [dm-devel] " Pankaj Raghav
     [not found]   ` <CGME20220923173621eucas1p11d1d89e187b39e057c7dfb58756c6a2e@eucas1p1.samsung.com>
2022-09-23 17:36     ` [PATCH v15 02/13] block: rearrange bdev_{is_zoned,zone_sectors,get_queue} helper in blkdev.h Pankaj Raghav
2022-09-23 17:36       ` [dm-devel] [PATCH v15 02/13] block: rearrange bdev_{is_zoned, zone_sectors, get_queue} " Pankaj Raghav
     [not found]   ` <CGME20220923173623eucas1p2aeb5444a1005282b630706d60e18a5ba@eucas1p2.samsung.com>
2022-09-23 17:36     ` [PATCH v15 03/13] block: allow blk-zoned devices to have non-power-of-2 zone size Pankaj Raghav
2022-09-23 17:36       ` [dm-devel] " Pankaj Raghav
     [not found]   ` <CGME20220923173624eucas1p19e66d02c7f4dfd2da262b783ef440156@eucas1p1.samsung.com>
2022-09-23 17:36     ` [PATCH v15 04/13] nvmet: Allow ZNS target to support non-power_of_2 zone sizes Pankaj Raghav
2022-09-23 17:36       ` [dm-devel] " Pankaj Raghav
     [not found]   ` <CGME20220923173625eucas1p147864849427469a90bf5c3ce547105c2@eucas1p1.samsung.com>
2022-09-23 17:36     ` [PATCH v15 05/13] nvme: zns: Allow ZNS drives that have non-power_of_2 zone size Pankaj Raghav
2022-09-23 17:36       ` [dm-devel] " Pankaj Raghav
     [not found]   ` <CGME20220923173626eucas1p2e06c400ad3c18fe8f33c0b4ab1a25bf0@eucas1p2.samsung.com>
2022-09-23 17:36     ` [PATCH v15 06/13] null_blk: allow zoned devices with non power-of-2 zone sizes Pankaj Raghav
2022-09-23 17:36       ` [dm-devel] " Pankaj Raghav
     [not found]   ` <CGME20220923173627eucas1p2f134d9cb331e4a8f0fca8431eeb0f0b0@eucas1p2.samsung.com>
2022-09-23 17:36     ` [dm-devel] [PATCH v15 07/13] zonefs: allow non power of 2 zoned devices Pankaj Raghav
2022-09-23 17:36       ` Pankaj Raghav
2022-09-28 18:10       ` Bart Van Assche
2022-09-28 18:10         ` [dm-devel] " Bart Van Assche
     [not found]   ` <CGME20220923173628eucas1p1837557826439e7cd6690b46628290037@eucas1p1.samsung.com>
2022-09-23 17:36     ` [dm-devel] [PATCH v15 08/13] dm-zoned: ensure only power of 2 zone sizes are allowed Pankaj Raghav
2022-09-23 17:36       ` Pankaj Raghav
     [not found]   ` <CGME20220923173629eucas1p27c1ebffb55c2f1a52fad913840b16d02@eucas1p2.samsung.com>
2022-09-23 17:36     ` [dm-devel] [PATCH v15 09/13] dm-zone: use generic helpers to calculate offset from zone start Pankaj Raghav
2022-09-23 17:36       ` Pankaj Raghav
     [not found]   ` <CGME20220923173630eucas1p2bae6918f0c165051464e62c5172a80e0@eucas1p2.samsung.com>
2022-09-23 17:36     ` [dm-devel] [PATCH v15 10/13] dm-table: allow zoned devices with non power-of-2 zone sizes Pankaj Raghav
2022-09-23 17:36       ` Pankaj Raghav
     [not found]   ` <CGME20220923173631eucas1p23cceb8438d6b8b9c3460192c0ad2472d@eucas1p2.samsung.com>
2022-09-23 17:36     ` [PATCH v15 11/13] dm: call dm_zone_endio after the target endio callback for zoned devices Pankaj Raghav
2022-09-23 17:36       ` [dm-devel] " Pankaj Raghav
2022-09-28 18:13       ` Bart Van Assche
2022-09-28 18:13         ` [dm-devel] " Bart Van Assche
     [not found]   ` <CGME20220923173632eucas1p1a4b8cba427f5caf649009073233f8c76@eucas1p1.samsung.com>
2022-09-23 17:36     ` [dm-devel] [PATCH v15 12/13] dm: introduce DM_EMULATED_ZONES target feature flag Pankaj Raghav
2022-09-23 17:36       ` Pankaj Raghav
     [not found]   ` <CGME20220923173634eucas1p18fccee11155c670354da389b4d2f4c60@eucas1p1.samsung.com>
2022-09-23 17:36     ` [dm-devel] [PATCH v15 13/13] dm: add power-of-2 target for zoned devices with non power-of-2 zone sizes Pankaj Raghav
2022-09-23 17:36       ` Pankaj Raghav
2022-09-27 16:07       ` Pankaj Raghav
2022-09-27 16:07         ` [dm-devel] " Pankaj Raghav
2022-09-28 14:22       ` Mike Snitzer
2022-09-28 14:22         ` [dm-devel] " Mike Snitzer
2022-09-29  6:31   ` [PATCH v15 00/13] support zoned block devices with non-power-of-2 " Pankaj Raghav
2022-09-29  6:31     ` [dm-devel] " Pankaj Raghav
2022-09-30 15:13     ` Jens Axboe
2022-09-30 15:13       ` [dm-devel] " Jens Axboe
2022-09-30 19:38       ` Bart Van Assche
2022-09-30 19:38         ` [dm-devel] " Bart Van Assche
2022-09-30 21:24         ` Jens Axboe
2022-09-30 21:24           ` [dm-devel] " Jens Axboe
2022-10-24 19:02           ` Bart Van Assche [this message]
2022-10-24 19:02             ` Bart Van Assche
2022-10-01  0:45         ` Damien Le Moal
2022-10-01  0:45           ` [dm-devel] " Damien Le Moal
2022-10-01  2:14           ` Bart Van Assche
2022-10-01  2:14             ` [dm-devel] " Bart Van Assche
2023-01-04  5:29   ` Can Guo

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