[dpdk-dev] [PATCH v3] doc: announce ethdev API change for detach flag

[Gaetan Rivet <gaetan.rivet@6wind.com>]

The flag RTE_ETH_DEV_DETACHABLE will disappear.

This flag is not needed anymore following the hotplug work done for
v17.08. It can be removed, its function is now implicitly made available
by the relevant EAL and rte_bus implementations.

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
---

v3:

  - Sending this patch separately from the rest of the series.
  - Clarify the intent and rationale of this API change.

 doc/guides/rel_notes/deprecation.rst | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index 3c687b1..76da437 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -69,3 +69,11 @@ Deprecation Notices
   be removed in 17.11:
 
   - ``rte_cryptodev_create_vdev``
+
+* ethdev: The device flag advertizing hotplug capability
+  ``RTE_ETH_DEV_DETACHABLE`` is not needed anymore and will be removed in
+  v17.11.
+  This capability is verified upon calling the relevant hotplug functions in EAL
+  by checking that the ``unplug`` ops is set in the bus. This verification is
+  done by the EAL and not by the ``ethdev`` layer anymore. Users relying on this
+  flag being present only have to remove their checks to follow the change.
-- 
2.1.4