From patchwork Sat Jun 26 00:33:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinicius Costa Gomes X-Patchwork-Id: 12346063 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=-16.7 required=3.0 tests=BAYES_00, 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 A4986C48BC2 for ; Sat, 26 Jun 2021 00:34:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8825C61474 for ; Sat, 26 Jun 2021 00:34:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230107AbhFZAgV (ORCPT ); Fri, 25 Jun 2021 20:36:21 -0400 Received: from mga18.intel.com ([134.134.136.126]:48448 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229929AbhFZAgE (ORCPT ); Fri, 25 Jun 2021 20:36:04 -0400 IronPort-SDR: U5M+gNkRdu19XM+44a/CvXf2hmIPhUaQdIxrMU3frS6SOh+MeZt8UP3fL45LwTuszCDx68D+Up YgghzE3k5C7A== X-IronPort-AV: E=McAfee;i="6200,9189,10026"; a="195054024" X-IronPort-AV: E=Sophos;i="5.83,300,1616482800"; d="scan'208";a="195054024" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Jun 2021 17:33:42 -0700 IronPort-SDR: D4VtIbCZZ/e0pqhO62BUhdML0gSHuv9bAxtqAcHwE3i2/yvlY1JshRWq87YqnIuFv0zYVSxX50 DiIQMFJtwgiQ== X-IronPort-AV: E=Sophos;i="5.83,300,1616482800"; d="scan'208";a="557008616" Received: from aschmalt-mobl1.amr.corp.intel.com (HELO localhost.localdomain) ([10.212.160.59]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Jun 2021 17:33:42 -0700 From: Vinicius Costa Gomes To: netdev@vger.kernel.org Cc: Vinicius Costa Gomes , jhs@mojatatu.com, xiyou.wangcong@gmail.com, jiri@resnulli.us, kuba@kernel.org, vladimir.oltean@nxp.com, po.liu@nxp.com, intel-wired-lan@lists.osuosl.org, anthony.l.nguyen@intel.com, mkubecek@suse.cz Subject: [PATCH net-next v4 07/12] igc: Add support for TC_SETUP_PREEMPT Date: Fri, 25 Jun 2021 17:33:09 -0700 Message-Id: <20210626003314.3159402-8-vinicius.gomes@intel.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210626003314.3159402-1-vinicius.gomes@intel.com> References: <20210626003314.3159402-1-vinicius.gomes@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Saves which queues are marked as preemptible, activating frame preemption is done when the user requests it enabled, via ethtool. Signed-off-by: Vinicius Costa Gomes --- drivers/net/ethernet/intel/igc/igc.h | 1 + drivers/net/ethernet/intel/igc/igc_main.c | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+) diff --git a/drivers/net/ethernet/intel/igc/igc.h b/drivers/net/ethernet/intel/igc/igc.h index 9afee4712aeb..68c7262bd172 100644 --- a/drivers/net/ethernet/intel/igc/igc.h +++ b/drivers/net/ethernet/intel/igc/igc.h @@ -92,6 +92,7 @@ struct igc_ring { u8 queue_index; /* logical index of the ring*/ u8 reg_idx; /* physical index of the ring */ bool launchtime_enable; /* true if LaunchTime is enabled */ + bool preemptible; /* true if not express */ u32 start_time; u32 end_time; diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index 3f6b6d4543a8..b0981ea0ae63 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -5563,6 +5563,23 @@ static int igc_save_qbv_schedule(struct igc_adapter *adapter, return 0; } +static int igc_save_frame_preemption(struct igc_adapter *adapter, + struct tc_preempt_qopt_offload *qopt) +{ + u32 preempt; + int i; + + preempt = qopt->preemptible_queues; + + for (i = 0; i < adapter->num_tx_queues; i++) { + struct igc_ring *ring = adapter->tx_ring[i]; + + ring->preemptible = preempt & BIT(i); + } + + return 0; +} + static int igc_tsn_enable_qbv_scheduling(struct igc_adapter *adapter, struct tc_taprio_qopt_offload *qopt) { @@ -5591,6 +5608,9 @@ static int igc_setup_tc(struct net_device *dev, enum tc_setup_type type, case TC_SETUP_QDISC_ETF: return igc_tsn_enable_launchtime(adapter, type_data); + case TC_SETUP_PREEMPT: + return igc_save_frame_preemption(adapter, type_data); + default: return -EOPNOTSUPP; }