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=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,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 E9F42C4360C for ; Fri, 27 Sep 2019 07:49:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BE65F2075D for ; Fri, 27 Sep 2019 07:49:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=synopsys.com header.i=@synopsys.com header.b="SY98zuQS" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726690AbfI0HtN (ORCPT ); Fri, 27 Sep 2019 03:49:13 -0400 Received: from dc2-smtprelay2.synopsys.com ([198.182.61.142]:34646 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725769AbfI0HtM (ORCPT ); Fri, 27 Sep 2019 03:49:12 -0400 Received: from mailhost.synopsys.com (mdc-mailhost2.synopsys.com [10.225.0.210]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id E665CC0DD7; Fri, 27 Sep 2019 07:49:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1569570551; bh=MV+Pa6bWic8PJcQ0PmrvM1y6FtITxVDL2Xu5W5HutE4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=SY98zuQSRffbIhSYtGFOB1P2E/uD0H5fxHiecGoVR7sioYH+HGj79+gMcZqKYozaa yGJ1BmNssJr4KPH0Z2FxzTQwQpWeOT+rPihgNy92fzHlgbr/PZeMpA4csQKlrnojcC z9ddfh8TXYcowDKQq25t7yClSVpaAsUOZ2Nv1SSNECCXe6zXgqrdDgV0xILLEDsOob yE9rrHtmnPjwLeyKCIrJWDXm5XNKR0bLo0ledZld9VNF8dnIrkgIKFMpYWREixk9fJ PtxVHoNKpeYf5LvY0fpChnx6diPxHuOo9m1Cs5FWWJg9IXGIjhxGBf7j80BgmDXEFc t0YOaNF2hGoqw== Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by mailhost.synopsys.com (Postfix) with ESMTP id 5E435A007C; Fri, 27 Sep 2019 07:49:09 +0000 (UTC) From: Jose Abreu To: netdev@vger.kernel.org Cc: Joao Pinto , Jose Abreu , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Maxime Coquelin , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH net 4/8] net: stmmac: dwmac4: Always update the MAC Hash Filter Date: Fri, 27 Sep 2019 09:48:52 +0200 Message-Id: <7a69c00a5dc6d54eabceba806e90151197565d1a.1569569778.git.Jose.Abreu@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We need to always update the MAC Hash Filter so that previous entries are invalidated. Found out while running stmmac selftests. Fixes: b8ef7020d6e5 ("net: stmmac: add support for hash table size 128/256 in dwmac4") Signed-off-by: Jose Abreu --- Cc: Giuseppe Cavallaro Cc: Alexandre Torgue Cc: Jose Abreu Cc: "David S. Miller" Cc: Maxime Coquelin Cc: netdev@vger.kernel.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c index 9b4b5f69fc02..2cb9c53f93b8 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c @@ -401,8 +401,11 @@ static void dwmac4_set_filter(struct mac_device_info *hw, int numhashregs = (hw->multicast_filter_bins >> 5); int mcbitslog2 = hw->mcast_bits_log2; unsigned int value; + u32 mc_filter[8]; int i; + memset(mc_filter, 0, sizeof(mc_filter)); + value = readl(ioaddr + GMAC_PACKET_FILTER); value &= ~GMAC_PACKET_FILTER_HMC; value &= ~GMAC_PACKET_FILTER_HPF; @@ -416,16 +419,13 @@ static void dwmac4_set_filter(struct mac_device_info *hw, /* Pass all multi */ value |= GMAC_PACKET_FILTER_PM; /* Set all the bits of the HASH tab */ - for (i = 0; i < numhashregs; i++) - writel(0xffffffff, ioaddr + GMAC_HASH_TAB(i)); + memset(mc_filter, 0xff, sizeof(mc_filter)); } else if (!netdev_mc_empty(dev)) { struct netdev_hw_addr *ha; - u32 mc_filter[8]; /* Hash filter for multicast */ value |= GMAC_PACKET_FILTER_HMC; - memset(mc_filter, 0, sizeof(mc_filter)); netdev_for_each_mc_addr(ha, dev) { /* The upper n bits of the calculated CRC are used to * index the contents of the hash table. The number of @@ -440,10 +440,11 @@ static void dwmac4_set_filter(struct mac_device_info *hw, */ mc_filter[bit_nr >> 5] |= (1 << (bit_nr & 0x1f)); } - for (i = 0; i < numhashregs; i++) - writel(mc_filter[i], ioaddr + GMAC_HASH_TAB(i)); } + for (i = 0; i < numhashregs; i++) + writel(mc_filter[i], ioaddr + GMAC_HASH_TAB(i)); + value |= GMAC_PACKET_FILTER_HPF; /* Handle multiple unicast addresses */ -- 2.7.4