[PATCH 0/8] zcrx huge pages support Vol 1

[Pavel Begunkov <asml.silence@gmail.com>]

Deduplicate some umem vs dmabuf code by creating sg_table for umem areas,
and add huge page coalescing on top. It improves iommu mapping and
compacts the page array, but leaves optimising the NIC page sizes to
follow ups.

Pavel Begunkov (8):
  io_uring/zcrx: return error from io_zcrx_map_area_*
  io_uring/zcrx: introduce io_populate_area_dma
  io_uring/zcrx: allocate sgtable for umem areas
  io_uring/zcrx: assert area type in io_zcrx_iov_page
  io_uring/zcrx: convert io_zcrx_iov_page to use folios
  io_uring/zcrx: add infra for large pages
  io_uring: export io_coalesce_buffer()
  io_uring/zcrx: try to coalesce area pages

 io_uring/rsrc.c |   2 +-
 io_uring/rsrc.h |   2 +
 io_uring/zcrx.c | 179 +++++++++++++++++++++++++-----------------------
 io_uring/zcrx.h |   2 +
 4 files changed, 98 insertions(+), 87 deletions(-)

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2.49.0