This patch updates the MLX5 PMD and release notes documentations. Adding the notes of the behavior change that rte flows organization is switched into non-cached mode for applications.
Signed-off-by: Bing Zhao <bi...@mellanox.com> --- v2: update the description in release notes. v3: update the notes of rte_flow for application. --- doc/guides/nics/mlx5.rst | 13 +++++++++++++ doc/guides/rel_notes/release_20_05.rst | 2 ++ 2 files changed, 15 insertions(+) diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst index 759d0ac..ced5e03 100644 --- a/doc/guides/nics/mlx5.rst +++ b/doc/guides/nics/mlx5.rst @@ -1300,6 +1300,19 @@ set, and we should allow to specify zero values as rte_flow parameters for the META and MARK items and actions. In the same time zero mask has no meaning and should be rejected on validation stage. +Notes for rte_flow +------------------ +Implementation of flows organization is in non-cached mode. When stopping a +device, all the flows inserted from application will be considered invalid and +flushed automatically in the background. After restarting of the device, no +application's flow exists in the system. All reference pointers to these flows +held by the application are not valid anymore and should be discarded by the +application. + +The application should recreate the flows as required after device restarting, +and must not try to destroy or flush the invalid flows after stopping (except +discarding them). + Notes for testpmd ----------------- diff --git a/doc/guides/rel_notes/release_20_05.rst b/doc/guides/rel_notes/release_20_05.rst index bacd4c6..367c5df 100644 --- a/doc/guides/rel_notes/release_20_05.rst +++ b/doc/guides/rel_notes/release_20_05.rst @@ -63,6 +63,8 @@ New Features * Added support for matching on IPv4 Time To Live and IPv6 Hop Limit. * Added support for creating Relaxed Ordering Memory Regions. * Added support for jumbo frame size (9K MTU) in Multi-Packet RQ mode. + * Flow rules caching removed from the driver for memory saving and + correctness according to RTE flow and RTE ethdev. * Optimized the memory consumption of flow. * **Updated the Intel ice driver.** -- 1.8.3.1
