[RFC 0/3] Async nvme passthrough

[Kanchan Joshi <joshi.k@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