| From: |
| Andreas Hindborg <nmi-AT-metaspace.dk> |
| To: |
| Ming Lei <ming.lei-AT-redhat.com> |
| Subject: |
| [PATCH v4 0/4] ublk: add zoned storage support |
| Date: |
| Wed, 28 Jun 2023 21:06:45 +0200 |
| Message-ID: |
| <20230628190649.11233-1-nmi@metaspace.dk> |
| Cc: |
| Hans Holmberg <Hans.Holmberg-AT-wdc.com>, Aravind Ramesh <Aravind.Ramesh-AT-wdc.com>, Jens Axboe <axboe-AT-kernel.dk>, linux-block-AT-vger.kernel.org (open list:BLOCK LAYER), Christoph Hellwig <hch-AT-infradead.org>, Matias Bjorling <Matias.Bjorling-AT-wdc.com>, Andreas Hindborg <a.hindborg-AT-samsung.com>, linux-kernel-AT-vger.kernel.org (open list), Damien Le Moal <dlemoal-AT-kernel.org>, gost.dev-AT-samsung.com, Minwoo Im <minwoo.im.dev-AT-gmail.com> |
| Archive-link: |
| Article |
From: Andreas Hindborg <a.hindborg@samsung.com>
Hi All,
This patch set adds zoned storage support to `ublk`. The first two patches does
some house cleaning in preparation for the last two patches. The third patch
adds support for report_zones and the following operations:
- REQ_OP_ZONE_OPEN
- REQ_OP_ZONE_CLOSE
- REQ_OP_ZONE_FINISH
- REQ_OP_ZONE_RES
The last patch adds support for REQ_OP_ZONE_APPEND.
v3 [2] -> v4 changes:
- Split up v3 patches
- Add zone append support
- Change order of variables in `ublk_report_zones`
Read/write and zone operations are tested with zenfs [3].
The zone append path is tested with fio -> zonefs -> ublk -> null_blk.
The implementation of zone append requires ublk user copy feature, and therefore
the series is based on branch for-next (6afa337a3789) of [4].
[1] https://github.com/metaspace/ubdsrv/commit/7de0d901c329fd...
[2] https://lore.kernel.org/linux-block/20230316145539.300523...
[3] https://github.com/westerndigitalcorporation/zenfs
[4] https://git.kernel.dk/linux.git
Andreas Hindborg (4):
ublk: change ublk IO command defines to enum
ublk: move types to shared header file
ublk: enable zoned storage support
ublk: add zone append
MAINTAINERS | 2 +
drivers/block/Kconfig | 4 +
drivers/block/Makefile | 4 +-
drivers/block/ublk_drv-zoned.c | 155 +++++++++++++++++++++++++++++++++
drivers/block/ublk_drv.c | 150 +++++++++++++++++++------------
drivers/block/ublk_drv.h | 71 +++++++++++++++
include/uapi/linux/ublk_cmd.h | 38 ++++++--
7 files changed, 363 insertions(+), 61 deletions(-)
create mode 100644 drivers/block/ublk_drv-zoned.c
create mode 100644 drivers/block/ublk_drv.h
base-commit: 3261ea42710e9665c9151006049411bd23b5411f
--
2.41.0
