From patchwork Mon Feb 22 10:07:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qingfang Deng X-Patchwork-Id: 386081 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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 18FFBC433DB for ; Mon, 22 Feb 2021 10:09:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D674964DEC for ; Mon, 22 Feb 2021 10:09:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230310AbhBVKJA (ORCPT ); Mon, 22 Feb 2021 05:09:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59284 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231127AbhBVKIM (ORCPT ); Mon, 22 Feb 2021 05:08:12 -0500 Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BB668C061786; Mon, 22 Feb 2021 02:07:31 -0800 (PST) Received: by mail-pj1-x102c.google.com with SMTP id gm18so3365253pjb.1; Mon, 22 Feb 2021 02:07:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=Udsk+z6S+lmul3ghhLaA1MmOuPDaJpmhE/2DZlIxpH4=; b=TEF49KVVMWNsLlswBqRlelynbivwsoSQOJvdti1iBz7y6wQSK+YDDUw6N4qTsngxyt aFvJY+ZF5jdgwGyL+J3+jbU02AS2rhGBMNhh7gqN4bKz+Ich0CxQfhA1FzTueW4I5SdH pVxLvRZL6iXiYSXhIWmJ2VdvZ7dAPACvaCK8TvhgwM8aeScdsFZSJ/ij9e1nF6k/y6X/ YguC69OdU9rEMwAzGU17PaiiJCODVTzNu5HJ7SkbZpP1DrKil3WaH4Y62fK29Hvg2iGV kBNAm4xvTucYXOClAerpJg4T4ah3fuMktt8PlS0uv+0hhCKaYgDUmlMfHUkf6mguLsUr MR3Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=Udsk+z6S+lmul3ghhLaA1MmOuPDaJpmhE/2DZlIxpH4=; b=mdWCl25kfVQUkU1gTW22RicmVUxCegf6XqIXpt3sjofC4TIo6cYZQg1GahUqjHxadm ErHIUtSAorVuL1mWjkart0n7uUkL2qHSzdwPlS1FkQxuTYzd26EoxOm8XLpn0zBtKG+b 3gMXPd0LLu87DpuZEQv+KmQcqoZNaXgyF8zXmO6pFOlxopeoO4ndh0UtYhJyvok4pa2d cS1L3rtE+LPuHX3EV0u0eivYTqmkTREwlBdx/gLO/4uZyOAFXVADFqJjzoW15QwoX++U Vg8OIyIy8p2izL/8UO7+XmjEP6LPrrgIZ19P6CbFea/zHH3hwhKyZVBwtX3BBnkJzXtM Dtcg== X-Gm-Message-State: AOAM53147eWtZM3wmpy2ReYKdLgzGTlmfq0jFS6b6zw7gHt63UETO7Ag 5kSO8diWdcyVCQzFArZzeHU= X-Google-Smtp-Source: ABdhPJyrTvPPv2k+hYwKfxlUJ73L09piHJhfK1M3zTlfpoK9V1u1YJefTgwbbsb+YFs9kfD1kV94qQ== X-Received: by 2002:a17:902:ba91:b029:e3:fe6d:505c with SMTP id k17-20020a170902ba91b02900e3fe6d505cmr2630491pls.7.1613988451310; Mon, 22 Feb 2021 02:07:31 -0800 (PST) Received: from container-ubuntu.lan ([171.211.28.185]) by smtp.gmail.com with ESMTPSA id ch14sm9317902pjb.22.2021.02.22.02.07.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Feb 2021 02:07:30 -0800 (PST) From: DENG Qingfang To: Sean Wang , Landen Chao , Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean , "David S. Miller" , Jakub Kicinski , Matthias Brugger , Philipp Zabel , Russell King , netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Frank Wunderlich , =?utf-8?q?Ren=C3=A9_van_Do?= =?utf-8?q?rst?= Subject: [PATCH net-next v2] net: dsa: mt7530: support MDB operations Date: Mon, 22 Feb 2021 18:07:17 +0800 Message-Id: <20210222100717.451-1-dqfext@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Support port MDB add to/delete from MT7530 ARL. As the hardware can manage multicast forwarding itself, trapping multicast traffic to the CPU is no longer required. Signed-off-by: DENG Qingfang --- v1 -> v2: fix commit message drivers/net/dsa/mt7530.c | 58 +++++++++++++++++++++++++++++++++++++--- net/dsa/tag_mtk.c | 14 +--------- 2 files changed, 56 insertions(+), 16 deletions(-) diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 28aab0ff6e7d..20e66cf13485 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -1000,9 +1000,6 @@ mt753x_cpu_port_enable(struct dsa_switch *ds, int port) mt7530_write(priv, MT7530_PVC_P(port), PORT_SPEC_TAG); - /* Unknown multicast frame forwarding to the cpu port */ - mt7530_rmw(priv, MT7530_MFC, UNM_FFP_MASK, UNM_FFP(BIT(port))); - /* Set CPU port number */ if (priv->id == ID_MT7621) mt7530_rmw(priv, MT7530_MFC, CPU_MASK, CPU_EN | CPU_PORT(port)); @@ -1365,6 +1362,59 @@ mt7530_port_fdb_dump(struct dsa_switch *ds, int port, return 0; } +static int +mt7530_port_mdb_add(struct dsa_switch *ds, int port, + const struct switchdev_obj_port_mdb *mdb) +{ + struct mt7530_priv *priv = ds->priv; + const u8 *addr = mdb->addr; + u16 vid = mdb->vid; + u8 port_mask = 0; + int ret; + + mutex_lock(&priv->reg_mutex); + + mt7530_fdb_write(priv, vid, 0, addr, 0, STATIC_EMP); + if (!mt7530_fdb_cmd(priv, MT7530_FDB_READ, NULL)) + port_mask = (mt7530_read(priv, MT7530_ATRD) >> PORT_MAP) + & PORT_MAP_MASK; + + port_mask |= BIT(port); + mt7530_fdb_write(priv, vid, port_mask, addr, -1, STATIC_ENT); + ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL); + + mutex_unlock(&priv->reg_mutex); + + return ret; +} + +static int +mt7530_port_mdb_del(struct dsa_switch *ds, int port, + const struct switchdev_obj_port_mdb *mdb) +{ + struct mt7530_priv *priv = ds->priv; + const u8 *addr = mdb->addr; + u16 vid = mdb->vid; + u8 port_mask = 0; + int ret; + + mutex_lock(&priv->reg_mutex); + + mt7530_fdb_write(priv, vid, 0, addr, 0, STATIC_EMP); + if (!mt7530_fdb_cmd(priv, MT7530_FDB_READ, NULL)) + port_mask = (mt7530_read(priv, MT7530_ATRD) >> PORT_MAP) + & PORT_MAP_MASK; + + port_mask &= ~BIT(port); + mt7530_fdb_write(priv, vid, port_mask, addr, -1, + port_mask ? STATIC_ENT : STATIC_EMP); + ret = mt7530_fdb_cmd(priv, MT7530_FDB_WRITE, NULL); + + mutex_unlock(&priv->reg_mutex); + + return ret; +} + static int mt7530_vlan_cmd(struct mt7530_priv *priv, enum mt7530_vlan_cmd cmd, u16 vid) { @@ -3403,6 +3453,8 @@ static const struct dsa_switch_ops mt7530_switch_ops = { .port_fdb_add = mt7530_port_fdb_add, .port_fdb_del = mt7530_port_fdb_del, .port_fdb_dump = mt7530_port_fdb_dump, + .port_mdb_add = mt7530_port_mdb_add, + .port_mdb_del = mt7530_port_mdb_del, .port_vlan_filtering = mt7530_port_vlan_filtering, .port_vlan_add = mt7530_port_vlan_add, .port_vlan_del = mt7530_port_vlan_del, diff --git a/net/dsa/tag_mtk.c b/net/dsa/tag_mtk.c index 38dcdded74c0..53b620e177ad 100644 --- a/net/dsa/tag_mtk.c +++ b/net/dsa/tag_mtk.c @@ -23,9 +23,6 @@ static struct sk_buff *mtk_tag_xmit(struct sk_buff *skb, struct dsa_port *dp = dsa_slave_to_port(dev); u8 *mtk_tag; bool is_vlan_skb = true; - unsigned char *dest = eth_hdr(skb)->h_dest; - bool is_multicast_skb = is_multicast_ether_addr(dest) && - !is_broadcast_ether_addr(dest); /* Build the special tag after the MAC Source Address. If VLAN header * is present, it's required that VLAN header and special tag is @@ -48,10 +45,6 @@ static struct sk_buff *mtk_tag_xmit(struct sk_buff *skb, MTK_HDR_XMIT_UNTAGGED; mtk_tag[1] = (1 << dp->index) & MTK_HDR_XMIT_DP_BIT_MASK; - /* Disable SA learning for multicast frames */ - if (unlikely(is_multicast_skb)) - mtk_tag[1] |= MTK_HDR_XMIT_SA_DIS; - /* Tag control information is kept for 802.1Q */ if (!is_vlan_skb) { mtk_tag[2] = 0; @@ -67,9 +60,6 @@ static struct sk_buff *mtk_tag_rcv(struct sk_buff *skb, struct net_device *dev, u16 hdr; int port; __be16 *phdr; - unsigned char *dest = eth_hdr(skb)->h_dest; - bool is_multicast_skb = is_multicast_ether_addr(dest) && - !is_broadcast_ether_addr(dest); if (unlikely(!pskb_may_pull(skb, MTK_HDR_LEN))) return NULL; @@ -95,9 +85,7 @@ static struct sk_buff *mtk_tag_rcv(struct sk_buff *skb, struct net_device *dev, if (!skb->dev) return NULL; - /* Only unicast or broadcast frames are offloaded */ - if (likely(!is_multicast_skb)) - skb->offload_fwd_mark = 1; + skb->offload_fwd_mark = 1; return skb; }