[PATCH v5 0/2] vhost: introduce DMA vchannel unconfiguration

[xuan.ding at intel.com]

From: Xuan Ding <xuan.ding at intel.com>

This patchset introduces a new API rte_vhost_async_dma_unconfigure()
to help user to manually free DMA vchannels finished to use.

Note: this API should be called after async channel unregister.

v5:
* Use mutex instead of spinlock.
* Improve code readability.

v4:
* Rebase to 22.11 rc1.
* Fix the usage of 'dma_ref_count' to make sure the specified DMA device
  is not used by any vhost ports before unconfiguration.

v3:
* Rebase to latest DPDK.
* Refine some descriptions in the doc.
* Fix one bug in the vhost example.

v2:
* Add spinlock protection.
* Fix a memory leak issue.
* Refine the doc.

Xuan Ding (2):
  vhost: introduce DMA vchannel unconfiguration
  examples/vhost: unconfigure DMA vchannel

 doc/guides/prog_guide/vhost_lib.rst    |  6 +++
 doc/guides/rel_notes/release_22_11.rst |  4 ++
 examples/vhost/main.c                  | 40 ++++++++++-----
 lib/vhost/rte_vhost_async.h            | 18 +++++++
 lib/vhost/version.map                  |  3 ++
 lib/vhost/vhost.c                      | 69 ++++++++++++++++++++++++--
 6 files changed, 122 insertions(+), 18 deletions(-)

-- 
2.17.1