NVMe: Passthrough IOCTL for IO commands

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The NVME_IOCTL_SUBMIT_IO only works for IO commands with block data
transfers and isn't usable for other NVMe commands like flush,
data set management, or any sort of vendor unique command. The
NVME_IOCTL_ADMIN_CMD, however, can easily be modified to accept arbitrary
IO commands in addition to arbitrary admin commands without breaking
backward compatibility. This patch just adds a new IOCTL to distinguish
if the driver should submit the command on an IO or Admin queue.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

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Keith Busch 2014-09-12 16:07:20 -06:00 • committed by Jens Axboe

parent 1b9dbf7fe0

commit 7963e52181

2 changed files with 16 additions and 6 deletions

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5

include/uapi/linux/nvme.h

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