From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 07501C433E1 for ; Thu, 20 Aug 2020 13:56:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D7CF7206DA for ; Thu, 20 Aug 2020 13:56:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597931769; bh=e/fhm8qM9lB2e6f7dde7Wmy2InYUdJ/w2gSLWcKuwrE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=btKW1PV2+sZDMxZ0oFxs9zcXcLPrGxYT8JeE7XnO79MeUC5vT1BPuBb6x7XgsXduT UKvpKL817jK9CaXH2hSwcydBN5JzysGaC9H7KybITJGBFC2HpIjDj0qh/pKqDv6afS 3GSENyLSl84ssGi68Bt0jqcYT2dMOkcAZCd+Dfzk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730711AbgHTN4D (ORCPT ); Thu, 20 Aug 2020 09:56:03 -0400 Received: from mail.kernel.org ([198.145.29.99]:33672 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727849AbgHTJ0F (ORCPT ); Thu, 20 Aug 2020 05:26:05 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2331C22CB2; Thu, 20 Aug 2020 09:26:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597915564; bh=e/fhm8qM9lB2e6f7dde7Wmy2InYUdJ/w2gSLWcKuwrE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oX48WyAYq53AbENG6CrPT+m4jr4aiNXlGhyG8m6eN5XkNhWWHsppjBzyug+aGGRpS tGJ/2Am7sD+ujb92YqqFnsf7gurQ5jJVuS1SSiRgEQqUplbzhKxV6AdLcTzukHBAiw sgG4AahTi4fW2dclXI00DB2hrI4Z9wUs9npB6pt4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan McDowell , "David S. Miller" Subject: [PATCH 5.8 057/232] net: ethernet: stmmac: Disable hardware multicast filter Date: Thu, 20 Aug 2020 11:18:28 +0200 Message-Id: <20200820091615.548537559@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200820091612.692383444@linuxfoundation.org> References: <20200820091612.692383444@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jonathan McDowell commit df43dd526e6609769ae513a81443c7aa727c8ca3 upstream. The IPQ806x does not appear to have a functional multicast ethernet address filter. This was observed as a failure to correctly receive IPv6 packets on a LAN to the all stations address. Checking the vendor driver shows that it does not attempt to enable the multicast filter and instead falls back to receiving all multicast packets, internally setting ALLMULTI. Use the new fallback support in the dwmac1000 driver to correctly achieve the same with the mainline IPQ806x driver. Confirmed to fix IPv6 functionality on an RB3011 router. Cc: stable@vger.kernel.org Signed-off-by: Jonathan McDowell Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c @@ -351,6 +351,7 @@ static int ipq806x_gmac_probe(struct pla plat_dat->has_gmac = true; plat_dat->bsp_priv = gmac; plat_dat->fix_mac_speed = ipq806x_gmac_fix_mac_speed; + plat_dat->multicast_filter_bins = 0; err = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); if (err)