[PATCH v2 3/3] doc: add a relax rx mode requirement option

[Trevor Tao]

Add an option to enable the RX mode requirement relax
in release notes and l3fwd sample guide.

Signed-off-by: Trevor Tao <taozj888 at 163.com>
---
 doc/guides/rel_notes/release_23_11.rst  | 2 ++
 doc/guides/sample_app_ug/l3_forward.rst | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/doc/guides/rel_notes/release_23_11.rst b/doc/guides/rel_notes/release_23_11.rst
index f09ecd50fe..2f9e4a54c8 100644
--- a/doc/guides/rel_notes/release_23_11.rst
+++ b/doc/guides/rel_notes/release_23_11.rst
@@ -84,6 +84,8 @@ New Features
   default. The implementation using C11 standard atomic operations is enabled
   via the ``enable_stdatomic`` build option.
 
+* sample: Added a command option ``--relax-rx-mode`` in l3fwd example
+  to relax the rx RSS/Offload mode requirement if needed.
 
 Removed Items
 -------------
diff --git a/doc/guides/sample_app_ug/l3_forward.rst b/doc/guides/sample_app_ug/l3_forward.rst
index 1cc2c1dd1d..00283f070c 100644
--- a/doc/guides/sample_app_ug/l3_forward.rst
+++ b/doc/guides/sample_app_ug/l3_forward.rst
@@ -126,6 +126,8 @@ Where,
 
 * ``--parse-ptype:`` Optional, set to use software to analyze packet type. Without this option, hardware will check the packet type.
 
+* ``--relax-rx-mode:`` Optional, set to enable rx mode relax when RSS/offload is not fully supported by the hardware. When the IPv4 cksum offload is relaxed, it is calculated by the software instead. Without this option, the RSS and cksum offload will be forced.
+
 * ``--per-port-pool:`` Optional, set to use independent buffer pools per port. Without this option, single buffer pool is used for all ports.
 
 * ``--mode:`` Optional, Packet transfer mode for I/O, poll or eventdev.
@@ -140,7 +142,7 @@ Where,
 
 * ``--event-vector-tmo:`` Optional, Max timeout to form vector in nanoseconds if event vectorization is enabled.
 
-* ``--alg=<val>:`` optional, ACL classify method to use, one of:
+* ``--alg=<val>:`` Optional, ACL classify method to use, one of:
   ``scalar|sse|avx2|neon|altivec|avx512x16|avx512x32``
 
 * ``-E:`` Optional, enable exact match,
-- 
2.34.1