From patchwork Wed Feb 24 08:10:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qingfang Deng X-Patchwork-Id: 12101479 X-Patchwork-Delegate: kuba@kernel.org 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 B6492C433DB for ; Wed, 24 Feb 2021 08:11:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5C17764ED4 for ; Wed, 24 Feb 2021 08:11:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234058AbhBXIL0 (ORCPT ); Wed, 24 Feb 2021 03:11:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58974 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233900AbhBXILN (ORCPT ); Wed, 24 Feb 2021 03:11:13 -0500 Received: from mail-pf1-x429.google.com (mail-pf1-x429.google.com [IPv6:2607:f8b0:4864:20::429]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 41305C061574; Wed, 24 Feb 2021 00:10:31 -0800 (PST) Received: by mail-pf1-x429.google.com with SMTP id x129so835623pfx.7; Wed, 24 Feb 2021 00:10:31 -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=H7X++sm+Rm3DpXpYKvCcJeEOwCgrKeE5A92SU9+4RS0=; b=J4xIEEYfuDCHBvegZvnnOG6Y/bTrhpSsgKTnK+8iwz8tJwW9lI9P1nZgL5gmzf1qRQ 4X8N2tIamtZQNiPF7XRCxzmjj3OVPWvTw/yvypxEIQs04GagjCH6V7B7lx616+Nua7J0 IFgggXxmRgPjo7RYDl9c5gjLdMH6dN/4avUllltAy811omdVuuBKxgnNrvxG4x8vFU2A yK7rctQ1LdkaVxsU5RWZkEeqBe0rt4LJxbWVIThTXnuiRiU9TtXTwkxs8wKGF1LwCvoh 8VUcBmpidA/Z6hACOpZVo7hTuFUknZq7fJqR3OX4ZCDeaeijvrRBi6QBh0P9H7UA1mp6 kAkQ== 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=H7X++sm+Rm3DpXpYKvCcJeEOwCgrKeE5A92SU9+4RS0=; b=MCtFh7mMzdysdC6P07dYLc85NJOV4WzI762sBB1aN3XtkGIpQL1ZdYjmn58bixcBit HRMfFcUejuEfZ9+Q5s+VzXBheYS27floy17bk1C3kF3+8MMC5qy0xCMWSfED56ot1OJ9 IN4nYrYp5DYJxolCdFWQ7rxrFc7VccOa1BuRct4jB41e3q57c/7SA0PrI7XwJHWwYjVc ywXv4mYXwjACo06EO5Pq0MyvUM3x7UZSNCgstM8fbNIdvP6lmQ+f3bfo4kcUVfR3rmwS UgrZT+rzCs+gYtoIcy2Pu/OCXy2BlhDkPYWNqLbrhrSTvwyO4TmpKbSYHFFvUrtCeoOX vahQ== X-Gm-Message-State: AOAM533PQvTvVTdhsqQWUE35ke6DVKCK36emIOEDUF5fvBW1CwUKcMHK NDJmsxIn3eT6k3qsYkn5k34= X-Google-Smtp-Source: ABdhPJx9sWZJAFz8Ks8Wx43qrtbdUef55wYvixMgb2Ku/xIBs0ZTjGAxrj7a1VoSzxpk9VrUnZCpHw== X-Received: by 2002:aa7:9634:0:b029:1ed:1624:4ccd with SMTP id r20-20020aa796340000b02901ed16244ccdmr6326342pfg.64.1614154230791; Wed, 24 Feb 2021 00:10:30 -0800 (PST) Received: from container-ubuntu.lan ([171.211.28.221]) by smtp.gmail.com with ESMTPSA id j2sm1425748pgq.34.2021.02.24.00.10.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Feb 2021 00:10:29 -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_Dors?= =?utf-8?q?t?= Subject: [RFC net-next] net: dsa: mt7530: support MDB and bridge flag operations Date: Wed, 24 Feb 2021 16:10:18 +0800 Message-Id: <20210224081018.24719-1-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 X-Patchwork-Delegate: kuba@kernel.org X-Patchwork-State: RFC Support port MDB and bridge flag operations. As the hardware can manage multicast forwarding itself, offload_fwd_mark can be unconditionally set to true. Signed-off-by: DENG Qingfang --- Changes: Add bridge flag operations and resend as RFC drivers/net/dsa/mt7530.c | 123 +++++++++++++++++++++++++++++++++++++-- drivers/net/dsa/mt7530.h | 1 + net/dsa/tag_mtk.c | 14 +---- 3 files changed, 121 insertions(+), 17 deletions(-) diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index bca4fc724e45..341a6b3f7ef6 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -1000,8 +1000,9 @@ 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))); + /* Disable flooding by default */ + mt7530_rmw(priv, MT7530_MFC, BC_FFP_MASK | UNM_FFP_MASK | UNU_FFP_MASK, + BC_FFP(BIT(port)) | UNM_FFP(BIT(port)) | UNU_FFP(BIT(port))); /* Set CPU port number */ if (priv->id == ID_MT7621) @@ -1138,6 +1139,55 @@ mt7530_stp_state_set(struct dsa_switch *ds, int port, u8 state) mt7530_rmw(priv, MT7530_SSP_P(port), FID_PST_MASK, stp_state); } +static int +mt7530_port_pre_bridge_flags(struct dsa_switch *ds, int port, + struct switchdev_brport_flags flags, + struct netlink_ext_ack *extack) +{ + if (flags.mask & ~(BR_AUTO_MASK | BR_MCAST_FLOOD | BR_BCAST_FLOOD)) + return -EINVAL; + + return 0; +} + +static int +mt7530_port_bridge_flags(struct dsa_switch *ds, int port, + struct switchdev_brport_flags flags, + struct netlink_ext_ack *extack) +{ + struct mt7530_priv *priv = ds->priv; + + if (flags.mask & BR_LEARNING) + mt7530_rmw(priv, MT7530_PSC_P(port), SA_DIS, + flags.val & BR_LEARNING ? 0 : SA_DIS); + + if (flags.mask & BR_FLOOD) + mt7530_rmw(priv, MT7530_MFC, UNU_FFP(BIT(port)), + flags.val & BR_FLOOD ? UNU_FFP(BIT(port)) : 0); + + if (flags.mask & BR_MCAST_FLOOD) + mt7530_rmw(priv, MT7530_MFC, UNM_FFP(BIT(port)), + flags.val & BR_MCAST_FLOOD ? UNM_FFP(BIT(port)) : 0); + + if (flags.mask & BR_BCAST_FLOOD) + mt7530_rmw(priv, MT7530_MFC, BC_FFP(BIT(port)), + flags.val & BR_BCAST_FLOOD ? BC_FFP(BIT(port)) : 0); + + return 0; +} + +static int +mt7530_port_set_mrouter(struct dsa_switch *ds, int port, bool mrouter, + struct netlink_ext_ack *extack) +{ + struct mt7530_priv *priv = ds->priv; + + mt7530_rmw(priv, MT7530_MFC, UNM_FFP(BIT(port)), + mrouter ? UNM_FFP(BIT(port)) : 0); + + return 0; +} + static int mt7530_port_bridge_join(struct dsa_switch *ds, int port, struct net_device *bridge) @@ -1349,6 +1399,59 @@ 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) { @@ -2490,9 +2593,13 @@ mt7530_setup(struct dsa_switch *ds) ret = mt753x_cpu_port_enable(ds, i); if (ret) return ret; - } else + } else { mt7530_port_disable(ds, i); + /* Disable learning by default on all user ports */ + mt7530_set(priv, MT7530_PSC_P(i), SA_DIS); + } + /* Enable consistent egress tag */ mt7530_rmw(priv, MT7530_PVC_P(i), PVC_EG_TAG_MASK, PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT)); @@ -2652,9 +2759,12 @@ mt7531_setup(struct dsa_switch *ds) ret = mt753x_cpu_port_enable(ds, i); if (ret) return ret; - } else + } else { mt7530_port_disable(ds, i); + /* Disable learning by default on all user ports */ + mt7530_set(priv, MT7530_PSC_P(i), SA_DIS); + } /* Enable consistent egress tag */ mt7530_rmw(priv, MT7530_PVC_P(i), PVC_EG_TAG_MASK, PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT)); @@ -3381,11 +3491,16 @@ static const struct dsa_switch_ops mt7530_switch_ops = { .port_change_mtu = mt7530_port_change_mtu, .port_max_mtu = mt7530_port_max_mtu, .port_stp_state_set = mt7530_stp_state_set, + .port_pre_bridge_flags = mt7530_port_pre_bridge_flags, + .port_bridge_flags = mt7530_port_bridge_flags, + .port_set_mrouter = mt7530_port_set_mrouter, .port_bridge_join = mt7530_port_bridge_join, .port_bridge_leave = mt7530_port_bridge_leave, .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/drivers/net/dsa/mt7530.h b/drivers/net/dsa/mt7530.h index e4a4c8d1fbc8..fd7b66776c4e 100644 --- a/drivers/net/dsa/mt7530.h +++ b/drivers/net/dsa/mt7530.h @@ -34,6 +34,7 @@ enum mt753x_id { /* Registers to mac forward control for unknown frames */ #define MT7530_MFC 0x10 #define BC_FFP(x) (((x) & 0xff) << 24) +#define BC_FFP_MASK BC_FFP(~0) #define UNM_FFP(x) (((x) & 0xff) << 16) #define UNM_FFP_MASK UNM_FFP(~0) #define UNU_FFP(x) (((x) & 0xff) << 8) 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; }