From patchwork Fri Jan 22 23:57:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Nguyen X-Patchwork-Id: 369188 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 49714C433E0 for ; Sat, 23 Jan 2021 00:00:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0640623B52 for ; Sat, 23 Jan 2021 00:00:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726605AbhAVX7x (ORCPT ); Fri, 22 Jan 2021 18:59:53 -0500 Received: from mga09.intel.com ([134.134.136.24]:38713 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726416AbhAVX5o (ORCPT ); Fri, 22 Jan 2021 18:57:44 -0500 IronPort-SDR: A65rqzZbDNOiytVr8PaLeg/iiX+y4M60LOx6uOELjt87tr5zny2ixy8NHaJ6biOc56/at48Z35 z9t0OZZQ3Wlg== X-IronPort-AV: E=McAfee;i="6000,8403,9872"; a="179670513" X-IronPort-AV: E=Sophos;i="5.79,368,1602572400"; d="scan'208";a="179670513" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Jan 2021 15:57:02 -0800 IronPort-SDR: cOROxZVyvwlNzqV5/Fy2+iQOFTJAcy0716Cxj/zQBDrrExUgQvevgZxaRhWM5MZ2Ae9iVSvz+a i59oec2yW2zQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.79,368,1602572400"; d="scan'208";a="428258685" Received: from anguy11-desk2.jf.intel.com ([10.166.244.147]) by orsmga001.jf.intel.com with ESMTP; 22 Jan 2021 15:57:02 -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 3/7] ice: update dev_addr in ice_set_mac_address even if HW filter exists Date: Fri, 22 Jan 2021 15:57:30 -0800 Message-Id: <20210122235734.447240-4-anthony.l.nguyen@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210122235734.447240-1-anthony.l.nguyen@intel.com> References: <20210122235734.447240-1-anthony.l.nguyen@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.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; }