From patchwork Tue Jan 26 22:10:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Nguyen X-Patchwork-Id: 12048649 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=-16.8 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 7AEBAC18E57 for ; Tue, 26 Jan 2021 23:17:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3029E20665 for ; Tue, 26 Jan 2021 23:17:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387758AbhAZXNu (ORCPT ); Tue, 26 Jan 2021 18:13:50 -0500 Received: from mga14.intel.com ([192.55.52.115]:62462 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728306AbhAZWNY (ORCPT ); Tue, 26 Jan 2021 17:13:24 -0500 IronPort-SDR: Yie7yhT6/gdsH6natmL8KmyPjznNmRMTkZERhJi0FmYDYdstoiV0tuCO4jaVmNcM7lgurkooeP Tiw7S6Mmwixw== X-IronPort-AV: E=McAfee;i="6000,8403,9876"; a="179198678" X-IronPort-AV: E=Sophos;i="5.79,377,1602572400"; d="scan'208";a="179198678" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jan 2021 14:10:01 -0800 IronPort-SDR: OquP1jIvEaj0UBYBFs2zouidenwxgxkoQpSGjOMTH6LriOD9Xk23Iigy/RrcRVvCsbDjZLcUpf IWsa22Nxs81Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,377,1602572400"; d="scan'208";a="472908313" Received: from anguy11-desk2.jf.intel.com ([10.166.244.147]) by fmsmga001.fm.intel.com with ESMTP; 26 Jan 2021 14:10:01 -0800 From: Tony Nguyen To: davem@davemloft.net, kuba@kernel.org Cc: Nick Nunley , netdev@vger.kernel.org, sassmann@redhat.com, anthony.l.nguyen@intel.com, Tony Brelinski Subject: [PATCH net v2 3/7] ice: update dev_addr in ice_set_mac_address even if HW filter exists Date: Tue, 26 Jan 2021 14:10:31 -0800 Message-Id: <20210126221035.658124-4-anthony.l.nguyen@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210126221035.658124-1-anthony.l.nguyen@intel.com> References: <20210126221035.658124-1-anthony.l.nguyen@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Nick Nunley Fix the driver to copy the MAC address configured in ndo_set_mac_address into dev_addr, even if the MAC filter already exists in HW. In some situations (e.g. bonding) the netdev's dev_addr could have been modified outside of the driver, with no change to the HW filter, so the driver cannot assume that they match. Fixes: 757976ab16be ("ice: Fix check for removing/adding mac filters") Signed-off-by: Nick Nunley Tested-by: Tony Brelinski Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ice/ice_main.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index c52b9bb0e3ab..fb81aa5979e3 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -4884,9 +4884,15 @@ static int ice_set_mac_address(struct net_device *netdev, void *pi) goto err_update_filters; } - /* Add filter for new MAC. If filter exists, just return success */ + /* Add filter for new MAC. If filter exists, return success */ status = ice_fltr_add_mac(vsi, mac, ICE_FWD_TO_VSI); if (status == ICE_ERR_ALREADY_EXISTS) { + /* Although this MAC filter is already present in hardware it's + * possible in some cases (e.g. bonding) that dev_addr was + * modified outside of the driver and needs to be restored back + * to this value. + */ + memcpy(netdev->dev_addr, mac, netdev->addr_len); netdev_dbg(netdev, "filter for MAC %pM already exists\n", mac); return 0; }