From: Kanchan Joshi <joshi.k@samsung.com>
To: axboe@kernel.dk, hch@lst.de, kbusch@kernel.org
Cc: io-uring@vger.kernel.org, linux-nvme@lists.infradead.org,
anuj20.g@samsung.com, javier.gonz@samsung.com,
Kanchan Joshi <joshi.k@samsung.com>
Subject: [RFC 0/3] Async nvme passthrough
Date: Tue, 2 Mar 2021 21:37:31 +0530 [thread overview]
Message-ID: <20210302160734.99610-1-joshi.k@samsung.com> (raw)
In-Reply-To: CGME20210302160907epcas5p4d04ab7c4ef4d467302498f06ed656b24@epcas5p4.samsung.com
This series adds async passthrough capability for nvme block-dev over
iouring_cmd. The patches are on top of Jens uring-cmd branch:
https://git.kernel.dk/cgit/linux-block/log/?h=io_uring-fops.v3
Application is expected to allocate passthrough command structure, set
it up traditionally, and pass its address via "block_uring_cmd->addr".
On completion, CQE is posted with completion-status preceding any
ioctl specific buffer/field update.
Kanchan Joshi (3):
io_uring: add helper for uring_cmd completion in submitter-task
nvme: passthrough helper with callback
nvme: wire up support for async passthrough
drivers/nvme/host/core.c | 225 ++++++++++++++++++++++++++++++++-------
drivers/nvme/host/nvme.h | 3 +
drivers/nvme/host/pci.c | 1 +
fs/io_uring.c | 37 ++++++-
include/linux/io_uring.h | 8 ++
5 files changed, 232 insertions(+), 42 deletions(-)
--
2.25.1
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next parent reply other threads:[~2021-03-03 18:27 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20210302160907epcas5p4d04ab7c4ef4d467302498f06ed656b24@epcas5p4.samsung.com>
2021-03-02 16:07 ` Kanchan Joshi [this message]
[not found] ` <CGME20210302161000epcas5p3ec5c461a8eec593b6d83a9127c7fec4f@epcas5p3.samsung.com>
2021-03-02 16:07 ` [RFC 1/3] io_uring: add helper for uring_cmd completion in submitter-task Kanchan Joshi
[not found] ` <CGME20210302161005epcas5p23f28fe21bab5a3e07b9b382dd2406fdc@epcas5p2.samsung.com>
2021-03-02 16:07 ` [RFC 2/3] nvme: passthrough helper with callback Kanchan Joshi
2021-03-03 7:52 ` Chaitanya Kulkarni
2021-03-04 11:13 ` Kanchan Joshi
2021-03-05 4:14 ` Chaitanya Kulkarni
2021-03-05 10:40 ` Kanchan Joshi
[not found] ` <CGME20210302161010epcas5p4da13d3f866ff4ed45c04fb82929d1c83@epcas5p4.samsung.com>
2021-03-02 16:07 ` [RFC 3/3] nvme: wire up support for async passthrough Kanchan Joshi
2021-03-03 7:34 ` Chaitanya Kulkarni
2021-03-04 11:01 ` Kanchan Joshi
2021-03-04 22:59 ` Chaitanya Kulkarni
2021-03-05 1:46 ` Jens Axboe
2021-03-05 2:41 ` Keith Busch
2021-03-05 10:44 ` Kanchan Joshi
2021-03-05 13:17 ` hch
2021-03-03 7:35 ` Chaitanya Kulkarni
2021-03-04 10:55 ` Kanchan Joshi
2021-03-05 13:22 ` hch
2021-03-03 7:37 ` Chaitanya Kulkarni
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