From patchwork Thu Feb 4 00:42:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Nguyen X-Patchwork-Id: 376788 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 E7940C433DB for ; Thu, 4 Feb 2021 00:45:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9DF9C64F4C for ; Thu, 4 Feb 2021 00:45:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234559AbhBDApd (ORCPT ); Wed, 3 Feb 2021 19:45:33 -0500 Received: from mga11.intel.com ([192.55.52.93]:40083 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234542AbhBDApH (ORCPT ); Wed, 3 Feb 2021 19:45:07 -0500 IronPort-SDR: 355zVrd135Zh7AGknIoE8XRI3JDNza/ICpDMu3dkkhJCtWDONOC2gWXqc53+U9uzuCz8DmjSs6 rme7YM4E/Sng== X-IronPort-AV: E=McAfee;i="6000,8403,9884"; a="177638236" X-IronPort-AV: E=Sophos;i="5.79,399,1602572400"; d="scan'208";a="177638236" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Feb 2021 16:42:14 -0800 IronPort-SDR: 2gaFeZ36vMF1Ecub6eoLv7BWa3tGN9G1ozV6Sv6d+eg4zTzJ3aMd+Y/XA2xK/2jtTCvoZBJJyP hwIzJ2eoGG+A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,399,1602572400"; d="scan'208";a="579687515" Received: from anguy11-desk2.jf.intel.com ([10.166.244.147]) by fmsmga006.fm.intel.com with ESMTP; 03 Feb 2021 16:42:14 -0800 From: Tony Nguyen To: davem@davemloft.net, kuba@kernel.org Cc: Nick Lowe , netdev@vger.kernel.org, sassmann@redhat.com, anthony.l.nguyen@intel.com, David Switzer Subject: [PATCH net-next 12/15] igb: Enable RSS for Intel I211 Ethernet Controller Date: Wed, 3 Feb 2021 16:42:56 -0800 Message-Id: <20210204004259.3662059-13-anthony.l.nguyen@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210204004259.3662059-1-anthony.l.nguyen@intel.com> References: <20210204004259.3662059-1-anthony.l.nguyen@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Nick Lowe The Intel I211 Ethernet Controller supports 2 Receive Side Scaling (RSS) queues. It should not be excluded from having this feature enabled. Via commit c883de9fd787 ("igb: rename igb define to be more generic") E1000_MRQC_ENABLE_RSS_4Q was renamed to E1000_MRQC_ENABLE_RSS_MQ to indicate that this is a generic bit flag to enable queues and not a flag that is specific to devices that support 4 queues The bit flag enables 2, 4 or 8 queues appropriately depending on the part. Tested with a multicore CPU and frames were then distributed as expected. This issue appears to have been introduced because of confusion caused by the prior name. Signed-off-by: Nick Lowe Tested-by: David Switzer Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/igb/igb_main.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index d6090faaa41d..23e50de94474 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -4482,8 +4482,7 @@ static void igb_setup_mrqc(struct igb_adapter *adapter) else mrqc |= E1000_MRQC_ENABLE_VMDQ; } else { - if (hw->mac.type != e1000_i211) - mrqc |= E1000_MRQC_ENABLE_RSS_MQ; + mrqc |= E1000_MRQC_ENABLE_RSS_MQ; } igb_vmm_control(adapter);