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 E1B85C433E3 for ; Thu, 20 Aug 2020 11:43:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B17272054F for ; Thu, 20 Aug 2020 11:43:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597923786; bh=NF9kcntLa0PLq0NPePJuMziGeFLz7qScJquirh2Md/Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=uEagTHKsQuytrIfZ3B+5CzxjpMFAhJGRufWB3UDtI3y7kcSSNcJtI5BzNt9incQNW iYceYYyCbf4gVSyWxpJcvRoE+0WtiW2IX3jjRo5Hk7bkYcIIkxxcAgNqY+nbDyt7vC kVqOtT7zM2xikD9GnSDa29X/5zCBtcF1ViSEx9MM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729875AbgHTLm6 (ORCPT ); Thu, 20 Aug 2020 07:42:58 -0400 Received: from mail.kernel.org ([198.145.29.99]:55328 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727952AbgHTKEA (ORCPT ); Thu, 20 Aug 2020 06:04:00 -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 217C520738; Thu, 20 Aug 2020 10:03:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597917839; bh=NF9kcntLa0PLq0NPePJuMziGeFLz7qScJquirh2Md/Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uJG8A0/Kvf6joVB2q6fSAb/I1GeCagk5xvJ9WAhEHP4E6lsSkVxua5gGUI4/TEDF8 M2C41MSle7Vl3+lWGz4XVLHXUbJrY3X/nhpaE0vrzKTwAtX1mIATo87dB2akGGuEjV cIRjUu3HMAK1hd7uVLmO766/4Nr1TXpYMzmQYoaM= 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 4.9 177/212] net: ethernet: stmmac: Disable hardware multicast filter Date: Thu, 20 Aug 2020 11:22:30 +0200 Message-Id: <20200820091611.330998100@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200820091602.251285210@linuxfoundation.org> References: <20200820091602.251285210@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@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 @@ -362,6 +362,7 @@ 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)