From patchwork Tue Jul 20 23:21:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Nguyen X-Patchwork-Id: 481971 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, 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 387D1C07E9B for ; Tue, 20 Jul 2021 23:20:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 21707610F7 for ; Tue, 20 Jul 2021 23:20:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235590AbhGTWjr (ORCPT ); Tue, 20 Jul 2021 18:39:47 -0400 Received: from mga09.intel.com ([134.134.136.24]:50230 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233710AbhGTWhd (ORCPT ); Tue, 20 Jul 2021 18:37:33 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10051"; a="211341484" X-IronPort-AV: E=Sophos;i="5.84,256,1620716400"; d="scan'208";a="211341484" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Jul 2021 16:17:55 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,256,1620716400"; d="scan'208";a="415407157" Received: from anguy11-desk2.jf.intel.com ([10.166.244.147]) by orsmga003.jf.intel.com with ESMTP; 20 Jul 2021 16:17:54 -0700 From: Tony Nguyen To: davem@davemloft.net, kuba@kernel.org Cc: Muhammad Husaini Zulkifli , netdev@vger.kernel.org, anthony.l.nguyen@intel.com, sasha.neftin@intel.com, vitaly.lifshits@intel.com, Dvora Fuxbrumer Subject: [PATCH net-next 11/12] igc: Set QBVCYCLET_S to 0 for TSN Basic Scheduling Date: Tue, 20 Jul 2021 16:21:00 -0700 Message-Id: <20210720232101.3087589-12-anthony.l.nguyen@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210720232101.3087589-1-anthony.l.nguyen@intel.com> References: <20210720232101.3087589-1-anthony.l.nguyen@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Muhammad Husaini Zulkifli According to datasheet section 8.12.19, when there's no TSN offloading Shadow_QbvCycle bit[29:0] must be set to zero for basic scheduling. Signed-off-by: Muhammad Husaini Zulkifli Tested-by: Dvora Fuxbrumer Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/igc/igc_tsn.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/igc/igc_tsn.c b/drivers/net/ethernet/intel/igc/igc_tsn.c index 174103c4bea6..4dbbb8a32ce9 100644 --- a/drivers/net/ethernet/intel/igc/igc_tsn.c +++ b/drivers/net/ethernet/intel/igc/igc_tsn.c @@ -52,7 +52,7 @@ static int igc_tsn_disable_offload(struct igc_adapter *adapter) wr32(IGC_ENDQT(i), NSEC_PER_SEC); } - wr32(IGC_QBVCYCLET_S, NSEC_PER_SEC); + wr32(IGC_QBVCYCLET_S, 0); wr32(IGC_QBVCYCLET, NSEC_PER_SEC); adapter->flags &= ~IGC_FLAG_TSN_QBV_ENABLED;