From: Kanchan Joshi <joshi.k@samsung.com>
To: hch@lst.de, kbusch@kernel.org, axboe@kernel.dk
Cc: linux-nvme@lists.infradead.org, linux-block@vger.kernel.org,
joshiiitr@gmail.com
Subject: [PATCH 0/2] nvme-passthru with vectored-io
Date: Thu, 27 Jan 2022 13:55:34 +0530 [thread overview]
Message-ID: <20220127082536.7243-1-joshi.k@samsung.com> (raw)
In-Reply-To: CGME20220127083033epcas5p3ce9565e4b5e21e897571e48e73e4f9af@epcas5p3.samsung.com
NVMe passthru takes a single buffer pointer.
This enables using multiple buffers for passthru, similiar to
readv/writev.
First patch is prep, while second one adds vectored-io abililty to
NVME_IOCTL_IO64_CMD.
Kanchan Joshi (2):
block: introduce and export blk_rq_map_user_vec
nvme: add vectored-io support for user passthru
block/blk-map.c | 19 +++++++++++++++++++
drivers/nvme/host/ioctl.c | 9 ++++++---
include/linux/blk-mq.h | 2 ++
include/uapi/linux/nvme_ioctl.h | 4 ++++
4 files changed, 31 insertions(+), 3 deletions(-)
--
2.25.1
next parent reply other threads:[~2022-01-27 9:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20220127083033epcas5p3ce9565e4b5e21e897571e48e73e4f9af@epcas5p3.samsung.com>
2022-01-27 8:25 ` Kanchan Joshi [this message]
[not found] ` <CGME20220127083034epcas5p4aaafaf1f40c21a383e985d6f6568cbef@epcas5p4.samsung.com>
2022-01-27 8:25 ` [PATCH 1/2] block: introduce and export blk_rq_map_user_vec Kanchan Joshi
2022-01-27 9:27 ` Christoph Hellwig
2022-01-27 14:38 ` Kanchan Joshi
2022-01-28 9:04 ` Chaitanya Kulkarni
[not found] ` <CGME20220127083035epcas5p3e3760849513fb7939757f4e6678405a0@epcas5p3.samsung.com>
2022-01-27 8:25 ` [PATCH 2/2] nvme: add vectored-io support for user passthru Kanchan Joshi
2022-01-27 9:29 ` Christoph Hellwig
2022-01-27 14:43 ` Kanchan Joshi
2022-01-28 9:08 ` Chaitanya Kulkarni
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