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doc: add VLAN flow limitation on mlx5 PMD

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On mlx5 PMD Flow pattern without any specific vlan will match for vlan
packets as well.

Cc: stable@dpdk.org

Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
This commit is contained in:
Shahaf Shuler 2017-06-13 13:20:58 +03:00 committed by Ferruh Yigit
parent f503d26948
commit d88f0449be
1 changed files with 20 additions and 0 deletions
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doc/guides/nics/mlx5.rst
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@ -330,6 +330,26 @@ Supported NICs
* Mellanox(R) ConnectX(R)-5 100G MCX556A-ECAT (2x100G)
* Mellanox(R) ConnectX(R)-5 Ex EN 100G MCX516A-CDAT (2x100G)
Known issues
------------
* **Flow pattern without any specific vlan will match for vlan packets as well.**
When VLAN spec is not specified in the pattern, the matching rule will be created with VLAN as a wild card.
Meaning, the flow rule::
flow create 0 ingress pattern eth / vlan vid is 3 / ipv4 / end ...
Will only match vlan packets with vid=3. and the flow rules::
flow create 0 ingress pattern eth / ipv4 / end ...
Or::
flow create 0 ingress pattern eth / vlan / ipv4 / end ...
Will match any ipv4 packet (VLAN included).
Notes for testpmd
-----------------