[PATCH v2 0/4] Add VIRTIO_RING_F_INDIRECT_SIZE and queue_indirect_size

[Christian Schoenebeck <qemu_oss@crudebyte.com>]

This is a follow-up of:
[1/2]: https://lists.oasis-open.org/archives/virtio-comment/202112/msg00034.html
[2/2]: https://lists.oasis-open.org/archives/virtio-comment/202112/msg00035.html

These 4 patches introduce a more fine graded control over the maximum length
of indirect descriptor tables.

Associated Github Task:
https://github.com/oasis-tcs/virtio-spec/issues/122

Latest Version (all patches):
https://github.com/cschoenebeck/virtio-spec/commits/long_indirect_descr

v1 -> v2:

  * Update reserved bits section [patch 1].

  * Add requirement to device normative section [patch 1].

  * Use the general new term "Queue Indirect Size" where possible instead of
    mentioning a bus specific field name [patch 1].

  * Simplified phrasing of requirements in split ring section [patch 1].

  * Move bus-independent changes from patch 2 to patch 1.

  * There is only one indirect descriptor table allowed per buffer
    (round-trip message), so use the term "per indirect descriptor table" for
    the semantic of "Queue Indirect Size" in patch 2.

  * Simplify phrasing of requirements in patch 2.

  * MMIO: First shot [NEW patch 3].

  * CCW: First shot [NEW patch 4].

Christian Schoenebeck (4):
  Add VIRTIO_RING_F_INDIRECT_SIZE
  Add PCI configuration field "queue_indirect_size"
  Add MMIO configuration register "QueueIndirectNum"
  Add CCW configuration field "indirect_num" to vq_info_block

 content.tex     | 77 ++++++++++++++++++++++++++++++++++++++++++++++---
 packed-ring.tex |  2 +-
 split-ring.tex  |  8 +++--
 3 files changed, 80 insertions(+), 7 deletions(-)

-- 
2.30.2