Documentation: Remove experimental status on userspace TSO.

The checksum offloads API and TSO have went through a refactoring and
more testing. There is no identified gap in this implementation.
Time to remove the experimental status on this feature.

Acked-by: Mike Pattrick <mkp@redhat.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>

Author: david-marchand

Documentation/topics/userspace-tso.rst

@@ -27,8 +27,6 @@
 Userspace Datapath - TSO
 ========================
 
-**Note:** This feature is considered experimental.
-
 TCP Segmentation Offload (TSO) enables a network stack to delegate segmentation
 of an oversized TCP segment to the underlying physical NIC. Offload of frame
 segmentation achieves computational savings in the core, freeing up CPU cycles

NEWS

@@ -7,6 +7,7 @@ v4.0.0 - xx xxx xxxx
    - Userspace datapath:
      * ARP/ND lookups for native tunnel are now rate limited. The holdout
        timer can be configured with 'tnl/neigh/retrans_time'.
+     * Removed experimental tag from the userspace TSO implementation.
    - DPDK:
      * Probing of devices at DPDK initialization has been disabled to avoid
        wasting resources on unused devices. This breaks DPDK netdev ports