From patchwork Mon Mar 22 15:58:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ido Schimmel X-Patchwork-Id: 407511 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, 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 38162C433E4 for ; Mon, 22 Mar 2021 16:00:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 047C4619AB for ; Mon, 22 Mar 2021 16:00:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231557AbhCVQAb (ORCPT ); Mon, 22 Mar 2021 12:00:31 -0400 Received: from out5-smtp.messagingengine.com ([66.111.4.29]:47055 "EHLO out5-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230358AbhCVP7s (ORCPT ); Mon, 22 Mar 2021 11:59:48 -0400 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id F26635C01D4; Mon, 22 Mar 2021 11:59:47 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute3.internal (MEProxy); Mon, 22 Mar 2021 11:59:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm2; bh=3U42voeanu/fTOq6Z4uOM9YD3zq1zHZnCuSZNA5SeH0=; b=j4yaf9UQ AtJjYuRC/vvnI1huEnbca8JvGPmk+tIg6MVxeS4Fn2ci496ylakc48DoheKo9Xnn Wk0CgHOWOpOBWBRfzrf0ytIkSjNQOCx1U0Sgq+qA9PQ5hG9Yr0eqa5dVnsNM8MV8 1c7afFUL5cGggqWlz6VAvrpVbDmx8aMI5yKxqlZEq0Ego6lBPZZRH6+/JZWqZaqX 204zmtyiUM/5+CWA9sTBf9yekY6v8lCMhBDgmjp1ax8Jlv3wJhVq+sjGSe8ZRuja Sv+XR4LY/udbT3AriQhpFHooGs8ojxfJpByVe00Z2NL8yY7BeffrG6FMDU+NdW3u XA9igQ+7tiCFJw== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrudeggedgkedvucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefhvffufffkofgjfhgggfestdekre dtredttdenucfhrhhomhepkfguohcuufgthhhimhhmvghluceoihguohhstghhsehiugho shgthhdrohhrgheqnecuggftrfgrthhtvghrnhepudetieevffffveelkeeljeffkefhke ehgfdtffethfelvdejgffghefgveejkefhnecukfhppeekgedrvddvledrudehfedrgeeg necuvehluhhsthgvrhfuihiivgepfeenucfrrghrrghmpehmrghilhhfrhhomhepihguoh hstghhsehiughoshgthhdrohhrgh 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 19D211080064; Mon, 22 Mar 2021 11:59:45 -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 05/14] mlxsw: spectrum_router: Introduce nexthop action field Date: Mon, 22 Mar 2021 17:58:46 +0200 Message-Id: <20210322155855.3164151-6-idosch@idosch.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210322155855.3164151-1-idosch@idosch.org> References: <20210322155855.3164151-1-idosch@idosch.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Ido Schimmel Currently, the action associated with the nexthop is assumed to be 'forward' unless the 'discard' bit is set. Instead, simplify this by introducing a dedicated field to represent the action of the nexthop. This will allow us to more easily introduce more actions, such as trap. Signed-off-by: Ido Schimmel Reviewed-by: Petr Machata --- .../ethernet/mellanox/mlxsw/spectrum_router.c | 25 +++++++++++++------ 1 file changed, 17 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index bdf519b569b6..3ad1e1bd2197 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -2842,6 +2842,13 @@ enum mlxsw_sp_nexthop_type { MLXSW_SP_NEXTHOP_TYPE_IPIP, }; +enum mlxsw_sp_nexthop_action { + /* Nexthop forwards packets to an egress RIF */ + MLXSW_SP_NEXTHOP_ACTION_FORWARD, + /* Nexthop discards packets */ + MLXSW_SP_NEXTHOP_ACTION_DISCARD, +}; + struct mlxsw_sp_nexthop_key { struct fib_nh *fib_nh; }; @@ -2868,10 +2875,10 @@ struct mlxsw_sp_nexthop { offloaded:1, /* set indicates this nexthop was written to the * adjacency table. */ - update:1, /* set indicates this nexthop should be updated in the + update:1; /* set indicates this nexthop should be updated in the * adjacency table (f.e., its MAC changed). */ - discard:1; /* nexthop is programmed to discard packets */ + enum mlxsw_sp_nexthop_action action; enum mlxsw_sp_nexthop_type type; union { struct mlxsw_sp_neigh_entry *neigh_entry; @@ -2981,7 +2988,7 @@ struct mlxsw_sp_nexthop *mlxsw_sp_nexthop_next(struct mlxsw_sp_router *router, bool mlxsw_sp_nexthop_is_forward(const struct mlxsw_sp_nexthop *nh) { - return nh->offloaded && !nh->discard; + return nh->offloaded && nh->action == MLXSW_SP_NEXTHOP_ACTION_FORWARD; } unsigned char *mlxsw_sp_nexthop_ha(struct mlxsw_sp_nexthop *nh) @@ -3408,7 +3415,7 @@ static int __mlxsw_sp_nexthop_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index, mlxsw_reg_ratr_pack(ratr_pl, MLXSW_REG_RATR_OP_WRITE_WRITE_ENTRY, true, MLXSW_REG_RATR_TYPE_ETHERNET, adj_index, nh->rif->rif_index); - if (nh->discard) + if (nh->action == MLXSW_SP_NEXTHOP_ACTION_DISCARD) mlxsw_reg_ratr_trap_action_set(ratr_pl, MLXSW_REG_RATR_TRAP_ACTION_DISCARD_ERRORS); else @@ -3828,10 +3835,12 @@ mlxsw_sp_nexthop_group_refresh(struct mlxsw_sp *mlxsw_sp, static void __mlxsw_sp_nexthop_neigh_update(struct mlxsw_sp_nexthop *nh, bool removing) { - if (!removing) + if (!removing) { + nh->action = MLXSW_SP_NEXTHOP_ACTION_FORWARD; nh->should_offload = 1; - else + } else { nh->should_offload = 0; + } nh->update = 1; } @@ -4342,7 +4351,7 @@ static void mlxsw_sp_nexthop_obj_blackhole_init(struct mlxsw_sp *mlxsw_sp, { u16 lb_rif_index = mlxsw_sp->router->lb_rif_index; - nh->discard = 1; + nh->action = MLXSW_SP_NEXTHOP_ACTION_DISCARD; nh->should_offload = 1; /* While nexthops that discard packets do not forward packets * via an egress RIF, they still need to be programmed using a @@ -4405,7 +4414,7 @@ mlxsw_sp_nexthop_obj_init(struct mlxsw_sp *mlxsw_sp, static void mlxsw_sp_nexthop_obj_fini(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_nexthop *nh) { - if (nh->discard) + if (nh->action == MLXSW_SP_NEXTHOP_ACTION_DISCARD) mlxsw_sp_nexthop_obj_blackhole_fini(mlxsw_sp, nh); mlxsw_sp_nexthop_type_fini(mlxsw_sp, nh); list_del(&nh->router_list_node);