diff mbox series

doc: update mlx5 flow MARK action description

Message ID 1607688340-8400-1-git-send-email-viacheslavo@nvidia.com (mailing list archive)
State Accepted, archived
Delegated to: Raslan Darawsheh
Headers show
Series doc: update mlx5 flow MARK action description | expand

Checks

Context Check Description
ci/travis-robot success Travis build: passed
ci/Intel-compilation success Compilation OK
ci/checkpatch success coding style OK

Commit Message

Slava Ovsiienko Dec. 11, 2020, 12:05 p.m. UTC
There some limitations added for the MARK action value range.

Fixes: 2d241515ebaf ("net/mlx5: add devarg for extensive metadata support")
Cc: stable@dpdk.org

Signed-off-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
---
 doc/guides/nics/mlx5.rst | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

Comments

Raslan Darawsheh Jan. 24, 2021, 11:04 a.m. UTC | #1
Hi,

> -----Original Message-----
> From: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
> Sent: Friday, December 11, 2020 2:06 PM
> To: dev@dpdk.org
> Cc: Raslan Darawsheh <rasland@nvidia.com>; Matan Azrad
> <matan@nvidia.com>; stable@dpdk.org
> Subject: [PATCH] doc: update mlx5 flow MARK action description
> 
> There some limitations added for the MARK action value range.
> 
> Fixes: 2d241515ebaf ("net/mlx5: add devarg for extensive metadata
> support")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
> ---

Patch applied to next-net-mlx,

Kindest regards,
Raslan Darawsheh
diff mbox series

Patch

diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index 3bda0f8..3abf0f9 100644
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -825,7 +825,7 @@  Driver options
   +------+-----------+-----------+-------------+-------------+
   | 1    | 24 bits   | vary 0-32 | 32 bits     | yes         |
   +------+-----------+-----------+-------------+-------------+
-  | 2    | vary 0-32 | 32 bits   | 32 bits     | yes         |
+  | 2    | vary 0-24 | 32 bits   | 32 bits     | yes         |
   +------+-----------+-----------+-------------+-------------+
 
   If there is no E-Switch configuration the ``dv_xmeta_en`` parameter is
@@ -837,6 +837,15 @@  Driver options
   of the extensive metadata features. The legacy Verbs supports FLAG and
   MARK metadata actions over NIC Rx steering domain only.
 
+  The setting MARK or META value to zero means there is no item provided and
+  receiving datapath will not report in mbufs these items are present.
+
+  For the MARK action the last 16 values in the full range are reserved for
+  internal PMD purposes (to emulate FLAG action). The valid range for the
+  MARK action values is 0-0xFFEF for the 16-bit mode and 0-xFFFFEF
+  for the 24-bit mode, the flows with the MARK action value outside
+  the specified range will be rejected.
+
 - ``dv_flow_en`` parameter [int]
 
   A nonzero value enables the DV flow steering assuming it is supported