[PATCH] doc: announce removal of legacy telemetry

[Stephen Hemminger]

DPDK has carried two telemetry socket interfaces since 20.05: the
original legacy socket and the v2 socket that superseded it.

The legacy socket was kept only to support dpdk-telemetry-client.py,
which is its sole consumer. Everything it reports is available over the
v2 socket.

Announce removal of the legacy socket and the client script.

Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
---
 doc/guides/rel_notes/deprecation.rst | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index 56a67c372e..fba852020d 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -138,3 +138,7 @@ Deprecation Notices
 * bus/vmbus: Starting DPDK 25.11, all the vmbus API defined in
   ``drivers/bus/vmbus/rte_bus_vmbus.h`` will become internal to DPDK.
   Those API functions are used internally by DPDK core and netvsc PMD.
+
+* telemetry: The legacy telemetry socket and the ``dpdk-telemetry-client.py``
+  script are deprecated and will be removed in a future release.
+  Use the ``dpdk-telemetry.py`` script instead.
-- 
2.53.0