doc: add IP DSCP rewrite to mlx5 and release notes

The new rte_flow feature for DSCP field rewrite offload was
missing in the release notes.

The mlx5 requirements for DSCP field rewrite offload were missing.

Fixes: 8482ffe4b68b ("ethdev: add IPv4/IPv6 DSCP rewrite action")
Fixes: 6f26e604a9c3 ("net/mlx5: support IPv4/IPv6 DSCP rewrite action")

Signed-off-by: Suanming Mou <suanmingm@mellanox.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>

diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index dd2fbde..2e9c71a 100644 (file)
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -1168,6 +1168,11 @@ Supported hardware offloads
    | | set_mac_src /       | |               | |               |
    | | set_mac_dst)        | |               | |               |
    +-----------------------+-----------------+-----------------+
+   | | Header rewrite      | | DPDK 20.02    | | DPDK 20.02    |
+   | | (set_dscp)          | | OFED 5.0      | | OFED 5.0      |
+   | |                     | | rdma-core 24  | | rdma-core 24  |
+   | |                     | | ConnectX-5    | | ConnectX-5    |
+   +-----------------------+-----------------+-----------------+
    | Jump                  | | DPDK 19.05    | | DPDK 19.02    |
    |                       | | OFED 4.7-1    | | OFED 4.7-1    |
    |                       | | rdma-core 24  | | N/A           |

diff --git a/doc/guides/rel_notes/release_20_02.rst b/doc/guides/rel_notes/release_20_02.rst
index 1ef6ad4..7e8ddd3 100644 (file)
--- a/doc/guides/rel_notes/release_20_02.rst
+++ b/doc/guides/rel_notes/release_20_02.rst
@@ -69,6 +69,11 @@ New Features
 
   Added support for new flow item to handle L2TPv3 over IP rte_flow patterns.
 
+* **Added DSCP rewrite action.**
+
+  New actions ``RTE_FLOW_ACTION_TYPE_SET_IPV[4/6]_DSCP`` have been added
+  to support rewrite the DSCP field in the IP header.
+
 * **Added IONIC net PMD.**
 
   Added the new ``ionic`` net driver for Pensando Ethernet Network Adapters.
@@ -135,6 +140,7 @@ New Features
   * Added support for RSS using L3/L4 source/destination only.
   * Added support for matching on GTP tunnel header item.
   * Removed limitation of matching on tagged/untagged packets (when using DV flow engine).
+  * Added support for IPv4/IPv6 DSCP rewrite action.
   * Added BlueField-2 integrated ConnectX-6 Dx device support.
 
 * **Add new vDPA PMD based on Mellanox devices.**