From patchwork Mon Mar 22 15:58:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ido Schimmel X-Patchwork-Id: 406531 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 71F5AC433E3 for ; Mon, 22 Mar 2021 16:00:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 45D20619B1 for ; Mon, 22 Mar 2021 16:00:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231285AbhCVP7r (ORCPT ); Mon, 22 Mar 2021 11:59:47 -0400 Received: from out5-smtp.messagingengine.com ([66.111.4.29]:50219 "EHLO out5-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230358AbhCVP7i (ORCPT ); Mon, 22 Mar 2021 11:59:38 -0400 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 91F345C0193; Mon, 22 Mar 2021 11:59:37 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute3.internal (MEProxy); Mon, 22 Mar 2021 11:59:37 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :message-id:mime-version:subject:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm2; bh=crFmg59aAXKahKf4Q HNAz8LqZeT08R6igBAxuOotSkY=; b=VM8OWjP5KKMr8IZXEppLoP3lAwcSkJ+cA 3z2dj/RAWTwV0HPsDTtr/NtkQ6eWKKg8IOCQVIXLKeX/YOfsgpuLOTYp4GZYlPdr 7mOsZATBX2uDLDhTvW+tduYjUIRTuT8FQFtDKlWB4GVIym0nN9vyydPsHw0Ii0nF gwTO8VVpG1NjpMNkuR83s3VuPYtM3/rN6zJOerVaFT0HL/L2eLT2YBhVANH1N34h z4QNbxV+TcQyG/U1rgRdR3XHq72TKzbSvrvgYj2tXe5fTOcEeYAFt2zDPt4NgHYA tW2qJeEXeYgUBWX1OV40AlED/TkopfurG60snR1TTdPLoccHGWYug== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrudeggedgkedvucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefhvffufffkofgggfestdekredtre dttdenucfhrhhomhepkfguohcuufgthhhimhhmvghluceoihguohhstghhsehiughoshgt hhdrohhrgheqnecuggftrfgrthhtvghrnhepteevgefhvefggfffkeeuffeuvdfhueehhe etffeikeegheevfedvgeelvdffudfhnecukfhppeekgedrvddvledrudehfedrgeegnecu vehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepihguohhstg hhsehiughoshgthhdrohhrgh X-ME-Proxy: Received: from shredder.lan (igld-84-229-153-44.inter.net.il [84.229.153.44]) by mail.messagingengine.com (Postfix) with ESMTPA id CE207108005C; Mon, 22 Mar 2021 11:59:34 -0400 (EDT) From: Ido Schimmel To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, jiri@nvidia.com, petrm@nvidia.com, dsahern@gmail.com, mlxsw@nvidia.com, Ido Schimmel Subject: [PATCH net-next 00/14] mlxsw: Preparations for resilient nexthop groups Date: Mon, 22 Mar 2021 17:58:41 +0200 Message-Id: <20210322155855.3164151-1-idosch@idosch.org> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Ido Schimmel This patchset contains preparations for resilient nexthop groups support in mlxsw. A follow-up patchset will add support and selftests. Most of the patches are trivial and small to make review easier. Patchset overview: Patch #1 removes RTNL assertion in nexthop notifier block since it is not needed. The assertion will trigger when mlxsw starts processing notifications related to resilient groups as not all are emitted with RTNL held. Patches #2-#9 gradually add support for nexthops with trap action. Up until now mlxsw did not program nexthops whose neighbour entry was not resolved. This will not work with resilient groups as their size is fixed and the nexthop mapped to each bucket is determined by the nexthop code. Therefore, nexthops whose neighbour entry is not resolved will be programmed to trap packets to the CPU in order to trigger neighbour resolution. Patch #10 is a non-functional change to allow for code reuse between regular nexthop groups and resilient ones. Patch #11 avoids unnecessary neighbour updates in hardware. See the commit message for a detailed explanation. Patches #12-#14 add support for additional nexthop group sizes that are supported by Spectrum-{2,3} ASICs. Ido Schimmel (14): mlxsw: spectrum_router: Remove RTNL assertion mlxsw: spectrum_router: Consolidate nexthop helpers mlxsw: spectrum_router: Only provide MAC address for valid nexthops mlxsw: spectrum_router: Adjust comments on nexthop fields mlxsw: spectrum_router: Introduce nexthop action field mlxsw: spectrum_router: Prepare for nexthops with trap action mlxsw: spectrum_router: Add nexthop trap action support mlxsw: spectrum_router: Rename nexthop update function to reflect its type mlxsw: spectrum_router: Encapsulate nexthop update in a function mlxsw: spectrum_router: Break nexthop group entry validation to a separate function mlxsw: spectrum_router: Avoid unnecessary neighbour updates mlxsw: spectrum_router: Create per-ASIC router operations mlxsw: spectrum_router: Encode adjacency group size ranges in an array mlxsw: spectrum_router: Add Spectrum-{2, 3} adjacency group size ranges .../net/ethernet/mellanox/mlxsw/spectrum.c | 6 +- .../net/ethernet/mellanox/mlxsw/spectrum.h | 8 +- .../ethernet/mellanox/mlxsw/spectrum_dpipe.c | 19 +- .../ethernet/mellanox/mlxsw/spectrum_router.c | 277 +++++++++++++----- .../ethernet/mellanox/mlxsw/spectrum_router.h | 9 +- 5 files changed, 218 insertions(+), 101 deletions(-)