From: Kanchan Joshi <[email protected]>
To: [email protected], [email protected], [email protected], [email protected]
Cc: [email protected], [email protected],
[email protected], [email protected],
Kanchan Joshi <[email protected]>
Subject: [PATCH for-next v7 0/5] fixed-buffer for uring-cmd/passthru
Date: Fri, 9 Sep 2022 15:51:31 +0530 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: CGME20220909103131epcas5p23d146916eccedf30d498e0ea23e54052@epcas5p2.samsung.com
Currently uring-cmd lacks the ability to leverage the pre-registered
buffers. This series adds that support in uring-cmd, and plumbs
nvme passthrough to work with it.
Using registered-buffers showed IOPS hike from 1.9M to 2.2M in my tests.
Patch 1, 3, 4 = prep
Patch 2 = expand io_uring command to use registered-buffers
Patch 5 = expand nvme passthrough to use registered-buffers
Changes since v6:
- Patch 1: fix warning for io_uring_cmd_import_fixed (robot)
-
Changes since v5:
- Patch 4: newly addd, to split a nvme function into two
- Patch 3: folded cleanups in bio_map_user_iov (Chaitanya, Pankaj)
- Rebase to latest for-next
Changes since v4:
- Patch 1, 2: folded all review comments of Jens
Changes since v3:
- uring_cmd_flags, change from u16 to u32 (Jens)
- patch 3, add another helper to reduce code-duplication (Jens)
Changes since v2:
- Kill the new opcode, add a flag instead (Pavel)
- Fix standalone build issue with patch 1 (Pavel)
Changes since v1:
- Fix a naming issue for an exported helper
Anuj Gupta (2):
io_uring: add io_uring_cmd_import_fixed
io_uring: introduce fixed buffer support for io_uring_cmd
Kanchan Joshi (3):
nvme: refactor nvme_alloc_user_request
block: add helper to map bvec iterator for passthrough
nvme: wire up fixed buffer support for nvme passthrough
block/blk-map.c | 87 ++++++++++++++++++++---
drivers/nvme/host/ioctl.c | 126 +++++++++++++++++++++-------------
include/linux/blk-mq.h | 1 +
include/linux/io_uring.h | 10 ++-
include/uapi/linux/io_uring.h | 9 +++
io_uring/uring_cmd.c | 26 ++++++-
6 files changed, 199 insertions(+), 60 deletions(-)
--
2.25.1
next parent reply other threads:[~2022-09-09 10:31 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20220909103131epcas5p23d146916eccedf30d498e0ea23e54052@epcas5p2.samsung.com>
2022-09-09 10:21 ` Kanchan Joshi [this message]
[not found] ` <CGME20220909103136epcas5p38ea3a933e90d9f9d7451848dc3a60829@epcas5p3.samsung.com>
2022-09-09 10:21 ` [PATCH for-next v7 1/5] io_uring: add io_uring_cmd_import_fixed Kanchan Joshi
[not found] ` <CGME20220909103140epcas5p36689726422eb68e6fdc1d39019a4a8ba@epcas5p3.samsung.com>
2022-09-09 10:21 ` [PATCH for-next v7 2/5] io_uring: introduce fixed buffer support for io_uring_cmd Kanchan Joshi
[not found] ` <CGME20220909103143epcas5p2eda60190cd23b79fb8f48596af3e1524@epcas5p2.samsung.com>
2022-09-09 10:21 ` [PATCH for-next v7 3/5] nvme: refactor nvme_alloc_user_request Kanchan Joshi
2022-09-20 12:02 ` Christoph Hellwig
2022-09-22 15:46 ` Kanchan Joshi
2022-09-23 9:25 ` Kanchan Joshi
[not found] ` <CGME20220909103147epcas5p2a83ec151333bcb1d2abb8c7536789bfd@epcas5p2.samsung.com>
2022-09-09 10:21 ` [PATCH for-next v7 4/5] block: add helper to map bvec iterator for passthrough Kanchan Joshi
2022-09-20 12:08 ` Christoph Hellwig
2022-09-22 15:23 ` Kanchan Joshi
2022-09-23 15:29 ` Christoph Hellwig
2022-09-23 18:43 ` Kanchan Joshi
2022-09-25 17:46 ` Kanchan Joshi
2022-09-26 14:50 ` Christoph Hellwig
2022-09-27 16:47 ` Kanchan Joshi
[not found] ` <CGME20220909103151epcas5p1e25127c3053ba21e8f8418a701878973@epcas5p1.samsung.com>
2022-09-09 10:21 ` [PATCH for-next v7 5/5] nvme: wire up fixed buffer support for nvme passthrough Kanchan Joshi
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