From: Shaun Tancheff <shaun@tancheff.com>
To: linux-block@vger.kernel.org, linux-scsi@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: Shaun Tancheff <shaun@tancheff.com>, Jens Axboe <axboe@kernel.dk>,
Christoph Hellwig <hch@lst.de>,
"James E . J . Bottomley" <jejb@linux.vnet.ibm.com>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
Damien Le Moal <damien.lemoal@hgst.com>,
Hannes Reinecke <hare@suse.de>,
Josh Bingaman <josh.bingaman@seagate.com>,
Dan Williams <dan.j.williams@intel.com>,
Sagi Grimberg <sagig@mellanox.com>,
Mike Christie <mchristi@redhat.com>,
Toshi Kani <toshi.kani@hpe.com>,
Ming Lei <ming.lei@canonical.com>
Subject: [PATCH v2 0/4] Integrate bio/request ZBC ops with zone cache
Date: Sun, 21 Aug 2016 23:31:12 -0500 [thread overview]
Message-ID: <20160822043116.21168-1-shaun@tancheff.com> (raw)
Hi,
As per Christoph's request this patch incorporates Hannes' cache of zone
information.
This approach is to have REQ_OP_ZONE_REPORT return data in the same
format regardless of the availability of the zone cache. So if the
is kernel being built with or without BLK_DEV_ZONED [and SCSI_ZBC]
users of blkdev_issue_zone_report() and/or REQ_OP_ZONE_REPORT bio's
will have a consistent data format to digest.
Additionally it seems reasonable to allow the REQ_OP_ZONE_* to
be able to indicate if the command *must* be delivered to the
device [and update the zone cache] accordingly. Here REQ_META is
being used as REQ_FUA can be dropped causing sd_done to be skipped.
Rather than special case the current code I chose to pick an otherwise
non-applicable flag.
This series is based off of Linus's v4.8-rc2 and builds on top of the
previous series of block layer support:
Add ioctl to issue ZBC/ZAC commands via block layer
Add bio/request flags to issue ZBC/ZAC commands
as well as the series posted by Hannes
sd_zbc: Fix handling of ZBC read after write pointer
sd: Limit messages for ZBC disks capacity change
sd: Implement support for ZBC devices
sd: Implement new RESET_WP provisioning mode
sd: configure ZBC devices
...
Patches for util-linux can be found here:
git@github.com:stancheff/util-linux.git v2.28.1+biof
https://github.com/stancheff/util-linux/tree/v2.28.1%2Bbiof
This patch is available here:
https://github.com/stancheff/linux/tree/v4.8-rc2%2Bbiof.v9
git@github.com:stancheff/linux.git v4.8-rc2+biof.v9
v2:
- Fully integrated bio <-> zone cache [<-> device]
- Added discard -> write same for conventional zones.
- Merged disparate constants into a canonical set.
Shaun Tancheff (4):
Enable support for Seagate HostAware drives (testing).
On Discard either do Reset WP or Write Same
Merge ZBC constants
Integrate ZBC command requests with zone cache.
block/blk-lib.c | 16 -
drivers/scsi/sd.c | 111 +++--
drivers/scsi/sd.h | 49 ++-
drivers/scsi/sd_zbc.c | 904 ++++++++++++++++++++++++++++++++++----
include/linux/blkdev.h | 22 +-
include/scsi/scsi_proto.h | 17 -
include/uapi/linux/blkzoned_api.h | 167 ++++---
7 files changed, 1032 insertions(+), 254 deletions(-)
--
2.9.3
next reply other threads:[~2016-08-22 4:31 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-22 4:31 Shaun Tancheff [this message]
2016-08-22 4:31 ` [PATCH v2 1/4] Enable support for Seagate HostAware drives Shaun Tancheff
2016-08-22 4:31 ` [PATCH v2 2/4] On Discard either do Reset WP or Write Same Shaun Tancheff
2016-08-22 23:57 ` Damien Le Moal
2016-08-23 0:22 ` Shaun Tancheff
2016-08-23 1:25 ` Damien Le Moal
2016-08-24 5:19 ` Shaun Tancheff
2016-08-22 4:31 ` [PATCH v2 3/4] Merge ZBC constants Shaun Tancheff
2016-08-22 4:31 ` [PATCH v2 4/4] Integrate ZBC command requests with zone cache Shaun Tancheff
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