From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 8BF20A00C2; Wed, 22 Apr 2020 11:23:23 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 241B61D16D; Wed, 22 Apr 2020 11:23:23 +0200 (CEST) Received: from git-send-mailer.rdmz.labs.mlnx (unknown [37.142.13.130]) by dpdk.org (Postfix) with ESMTP id 91A2C1D164 for ; Wed, 22 Apr 2020 11:23:22 +0200 (CEST) From: Bing Zhao To: john.mcnamara@intel.com, marko.kovacevic@intel.com, viacheslavo@mellanox.com, orika@mellanox.com, matan@mellanox.com Cc: shahafs@mellanox.com, rasland@mellanox.com, dev@dpdk.org, thomas@monjalon.net Date: Wed, 22 Apr 2020 17:23:12 +0800 Message-Id: <1587547392-380151-1-git-send-email-bingz@mellanox.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1587449290-124383-1-git-send-email-bingz@mellanox.com> References: <1587449290-124383-1-git-send-email-bingz@mellanox.com> Subject: [dpdk-dev] [PATCH v4] doc: update flow non-cached mode notes X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 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 Acked-by: Ori Kam --- v2: update the description in release notes. v3: update the notes of rte_flow for application. v4: update the descriptions. --- doc/guides/nics/mlx5.rst | 14 ++++++++++++++ doc/guides/rel_notes/release_20_05.rst | 1 + 2 files changed, 15 insertions(+) diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst index 759d0ac..64822ae 100644 --- a/doc/guides/nics/mlx5.rst +++ b/doc/guides/nics/mlx5.rst @@ -1290,6 +1290,7 @@ Supported hardware offloads Notes for metadata ------------------ + MARK and META items are interrelated with datapath - they might move from/to the applications in mbuf fields. Hence, zero value for these items has the special meaning - it means "no metadata are provided", not zero values are @@ -1300,6 +1301,19 @@ 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 +------------------ + +Flows are not cached in the driver. When stopping a device port, all the flows +created on this port from the application will be flushed automatically in +the background. +After stopping the device port, all flows on this port become invalid and +not represented in the system. +All references to these flows held by the application should be discarded +directly but neither destroyed nor flushed. + +The application should re-create the flows as required after the port restart. + Notes for testpmd ----------------- diff --git a/doc/guides/rel_notes/release_20_05.rst b/doc/guides/rel_notes/release_20_05.rst index 1e5304d..cc53233 100644 --- a/doc/guides/rel_notes/release_20_05.rst +++ b/doc/guides/rel_notes/release_20_05.rst @@ -79,6 +79,7 @@ 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. + * Removed flow rules caching for memory saving and compliance with ethdev API. * Optimized the memory consumption of flow. * **Updated the Intel ice driver.** -- 1.8.3.1