From patchwork Fri Mar 12 23:38:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saeed Mahameed X-Patchwork-Id: 12136187 X-Patchwork-Delegate: kuba@kernel.org 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=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 1F28EC43603 for ; Fri, 12 Mar 2021 23:40:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 030E764EDF for ; Fri, 12 Mar 2021 23:40:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235897AbhCLXjb (ORCPT ); Fri, 12 Mar 2021 18:39:31 -0500 Received: from mail.kernel.org ([198.145.29.99]:32842 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235826AbhCLXjB (ORCPT ); Fri, 12 Mar 2021 18:39:01 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 94F6964F89; Fri, 12 Mar 2021 23:39:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1615592340; bh=eu4j/xXHVScm2qElUVqxDINeoVNSl+rSIuym8P4gWto=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=A8FBWROgni1/kVroUrU3LNaauKIfUzmlcigofxiLUDzmgjsqwSoE1h6EgB6AQjed4 8tF4hyt+wK0ZbaCHC3wPaDDT2P9ihN6L4TLtbuLIGH52q55/40fOkLycw6QhrugYdL bdR4XfuhtpEyMsRd9U4FnxwQnavedSrYl3fzq3MDlQL8+hHdLzFz/F+qp2AC0x4P2r d4+moXJCKW4IGllL42Ns2uQzXWZFgOCgkHZV5z1T9ZwcvG3xJ28SxUqZQ1niqNin1H 5EQ9W+EJToxhSlTWJH8JeW7YimDCcJoTUy55IIerC5aGhmd4v2qbbcGIou7OqhBt9q aj/L0EkJRy05Q== From: Saeed Mahameed To: "David S. Miller" , Jakub Kicinski Cc: netdev@vger.kernel.org, Paul Blakey , Maor Dickman , Roi Dayan , Saeed Mahameed Subject: [net-next 12/13] net/mlx5: CT: Add support for mirroring Date: Fri, 12 Mar 2021 15:38:50 -0800 Message-Id: <20210312233851.494832-13-saeed@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210312233851.494832-1-saeed@kernel.org> References: <20210312233851.494832-1-saeed@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Paul Blakey Add support for mirroring before the CT action by spliting the pre ct rule. Mirror outputs are done first on the tc chain,prio table rule (the fwd rule), which will then forward to a per port fwd table. On this fwd table, we insert the original pre ct rule that forwards to ct/ct nat table. Signed-off-by: Paul Blakey Signed-off-by: Maor Dickman Reviewed-by: Roi Dayan Signed-off-by: Saeed Mahameed --- .../ethernet/mellanox/mlx5/core/en/tc_ct.c | 4 ++++ .../net/ethernet/mellanox/mlx5/core/en_tc.c | 19 ++++++++++--------- 2 files changed, 14 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c index 3a6095c912f1..5e3d31b888ce 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c @@ -1797,6 +1797,10 @@ __mlx5_tc_ct_flow_offload(struct mlx5_tc_ct_priv *ct_priv, ct_flow->post_ct_attr->prio = 0; ct_flow->post_ct_attr->ft = ct_priv->post_ct; + /* Splits were handled before CT */ + if (ct_priv->ns_type == MLX5_FLOW_NAMESPACE_FDB) + ct_flow->post_ct_attr->esw_attr->split_count = 0; + ct_flow->post_ct_attr->inner_match_level = MLX5_MATCH_NONE; ct_flow->post_ct_attr->outer_match_level = MLX5_MATCH_NONE; ct_flow->post_ct_attr->action &= ~(MLX5_FLOW_CONTEXT_ACTION_DECAP); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index c72725c3f53b..121f0a744e55 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -1087,19 +1087,23 @@ mlx5e_tc_offload_fdb_rules(struct mlx5_eswitch *esw, if (flow_flag_test(flow, CT)) { mod_hdr_acts = &attr->parse_attr->mod_hdr_acts; - return mlx5_tc_ct_flow_offload(get_ct_priv(flow->priv), + rule = mlx5_tc_ct_flow_offload(get_ct_priv(flow->priv), flow, spec, attr, mod_hdr_acts); + } else { + rule = mlx5_eswitch_add_offloaded_rule(esw, spec, attr); } - rule = mlx5_eswitch_add_offloaded_rule(esw, spec, attr); if (IS_ERR(rule)) return rule; if (attr->esw_attr->split_count) { flow->rule[1] = mlx5_eswitch_add_fwd_rule(esw, spec, attr); if (IS_ERR(flow->rule[1])) { - mlx5_eswitch_del_offloaded_rule(esw, rule, attr); + if (flow_flag_test(flow, CT)) + mlx5_tc_ct_delete_flow(get_ct_priv(flow->priv), flow, attr); + else + mlx5_eswitch_del_offloaded_rule(esw, rule, attr); return flow->rule[1]; } } @@ -2989,7 +2993,8 @@ static bool actions_match_supported(struct mlx5e_priv *priv, actions = flow->attr->action; if (mlx5e_is_eswitch_flow(flow)) { - if (flow->attr->esw_attr->split_count && ct_flow) { + if (flow->attr->esw_attr->split_count && ct_flow && + !MLX5_CAP_GEN(flow->attr->esw_attr->in_mdev, reg_c_preserve)) { /* All registers used by ct are cleared when using * split rules. */ @@ -3789,6 +3794,7 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, return err; flow_flag_set(flow, CT); + esw_attr->split_count = esw_attr->out_count; break; default: NL_SET_ERR_MSG_MOD(extack, "The offload action is not supported"); @@ -3851,11 +3857,6 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, return -EOPNOTSUPP; } - if (attr->action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) { - NL_SET_ERR_MSG_MOD(extack, - "Mirroring goto chain rules isn't supported"); - return -EOPNOTSUPP; - } attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; }