From: Pankaj Raghav <p.raghav@samsung.com> To: snitzer@kernel.org, axboe@kernel.dk, agk@redhat.com, hch@lst.de, damien.lemoal@opensource.wdc.com Cc: jaegeuk@kernel.org, gost.dev@samsung.com, bvanassche@acm.org, 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, Pankaj Raghav <p.raghav@samsung.com>, Johannes Thumshirn <johannes.thumshirn@wdc.com>, Chaitanya Kulkarni <kch@nvidia.com>, Luis Chamberlain <mcgrof@kernel.org> Subject: [PATCH v15 04/13] nvmet: Allow ZNS target to support non-power_of_2 zone sizes Date: Fri, 23 Sep 2022 19:36:09 +0200 [thread overview] Message-ID: <20220923173618.6899-5-p.raghav@samsung.com> (raw) In-Reply-To: <20220923173618.6899-1-p.raghav@samsung.com> A generic bdev_zone_no() helper is added to calculate zone number for a given sector in a block device. This helper internally uses disk_zone_no() to find the zone number. Use the helper bdev_zone_no() to calculate nr of zones. This let's us make modifications to the math if needed in one place and adds now support for zoned devices with non po2 zone size. Reviewed by: Adam Manzanares <a.manzanares@samsung.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Pankaj Raghav <p.raghav@samsung.com> --- drivers/nvme/target/zns.c | 3 +-- include/linux/blkdev.h | 5 +++++ 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/nvme/target/zns.c b/drivers/nvme/target/zns.c index 835bfda86fcf..1c5352295db1 100644 --- a/drivers/nvme/target/zns.c +++ b/drivers/nvme/target/zns.c @@ -254,8 +254,7 @@ static unsigned long nvmet_req_nr_zones_from_slba(struct nvmet_req *req) { unsigned int sect = nvmet_lba_to_sect(req->ns, req->cmd->zmr.slba); - return bdev_nr_zones(req->ns->bdev) - - (sect >> ilog2(bdev_zone_sectors(req->ns->bdev))); + return bdev_nr_zones(req->ns->bdev) - bdev_zone_no(req->ns->bdev, sect); } static unsigned long get_nr_zones_from_buf(struct nvmet_req *req, u32 bufsize) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index e29799076298..5cf34ccd3e12 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1340,6 +1340,11 @@ static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev) return BLK_ZONED_NONE; } +static inline unsigned int bdev_zone_no(struct block_device *bdev, sector_t sec) +{ + return disk_zone_no(bdev->bd_disk, sec); +} + static inline int queue_dma_alignment(const struct request_queue *q) { return q ? q->dma_alignment : 511; -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Pankaj Raghav <p.raghav@samsung.com> To: snitzer@kernel.org, axboe@kernel.dk, agk@redhat.com, hch@lst.de, damien.lemoal@opensource.wdc.com Cc: Pankaj Raghav <p.raghav@samsung.com>, Chaitanya Kulkarni <kch@nvidia.com>, bvanassche@acm.org, pankydev8@gmail.com, gost.dev@samsung.com, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, dm-devel@redhat.com, Johannes Thumshirn <johannes.thumshirn@wdc.com>, jaegeuk@kernel.org, matias.bjorling@wdc.com, Luis Chamberlain <mcgrof@kernel.org> Subject: [dm-devel] [PATCH v15 04/13] nvmet: Allow ZNS target to support non-power_of_2 zone sizes Date: Fri, 23 Sep 2022 19:36:09 +0200 [thread overview] Message-ID: <20220923173618.6899-5-p.raghav@samsung.com> (raw) In-Reply-To: <20220923173618.6899-1-p.raghav@samsung.com> A generic bdev_zone_no() helper is added to calculate zone number for a given sector in a block device. This helper internally uses disk_zone_no() to find the zone number. Use the helper bdev_zone_no() to calculate nr of zones. This let's us make modifications to the math if needed in one place and adds now support for zoned devices with non po2 zone size. Reviewed by: Adam Manzanares <a.manzanares@samsung.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Pankaj Raghav <p.raghav@samsung.com> --- drivers/nvme/target/zns.c | 3 +-- include/linux/blkdev.h | 5 +++++ 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/nvme/target/zns.c b/drivers/nvme/target/zns.c index 835bfda86fcf..1c5352295db1 100644 --- a/drivers/nvme/target/zns.c +++ b/drivers/nvme/target/zns.c @@ -254,8 +254,7 @@ static unsigned long nvmet_req_nr_zones_from_slba(struct nvmet_req *req) { unsigned int sect = nvmet_lba_to_sect(req->ns, req->cmd->zmr.slba); - return bdev_nr_zones(req->ns->bdev) - - (sect >> ilog2(bdev_zone_sectors(req->ns->bdev))); + return bdev_nr_zones(req->ns->bdev) - bdev_zone_no(req->ns->bdev, sect); } static unsigned long get_nr_zones_from_buf(struct nvmet_req *req, u32 bufsize) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index e29799076298..5cf34ccd3e12 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1340,6 +1340,11 @@ static inline enum blk_zoned_model bdev_zoned_model(struct block_device *bdev) return BLK_ZONED_NONE; } +static inline unsigned int bdev_zone_no(struct block_device *bdev, sector_t sec) +{ + return disk_zone_no(bdev->bd_disk, sec); +} + static inline int queue_dma_alignment(const struct request_queue *q) { return q ? q->dma_alignment : 511; -- 2.25.1 -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel
next prev parent reply other threads:[~2022-09-23 17:36 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 ` Pankaj Raghav [this message] 2022-09-23 17:36 ` [dm-devel] [PATCH v15 04/13] nvmet: Allow ZNS target to support non-power_of_2 zone sizes 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 2022-10-24 19:02 ` [dm-devel] " 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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