From patchwork Sat Apr 30 13:03:44 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Wunderlich X-Patchwork-Id: 12833205 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 02BCEC433EF for ; Sat, 30 Apr 2022 13:05:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=J53WY44tyRFDEV4hN0UmfF/fqFov4F6Rnk7/S4MohMA=; b=LTtkcFuix5+Gqn xbk349cGgS2iJumgmNDGrEfDDTFp41GWJq9qEdlCNOBLcWNyhHYU9bnplNp6zRJBx/YQpGlhbiQPh ummcBL0Mf6+LmN7HdndNzhX1SvtNR5471F61ikbhchlPjTfDlRdIsAIJwKpvUMgxwGpyviYrJTM/P 7tO1Hy3DQyq6HPCo+SZhgfic7KkBqlaZkzsjsuXGKVcJ61LtQuWEdCSlE6MzJDQwJ5Z2RyloHbdVt YLx5ytLuvUsnFDsnA321YqkoUqTEQp13PWEM0qimEPpZDVZD1F85E0vdTNakiFcQBMRssyrDdR0nb AvhdmikzlEmHoxJMaDtQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nkmlz-00EGv8-JS; Sat, 30 Apr 2022 13:04:31 +0000 Received: from mxout1.routing.net ([2a03:2900:1:a::a]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nkmla-00EGgy-5e; Sat, 30 Apr 2022 13:04:08 +0000 Received: from mxbox3.masterlogin.de (unknown [192.168.10.78]) by mxout1.routing.net (Postfix) with ESMTP id 63DD53FE51; Sat, 30 Apr 2022 13:04:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailerdienst.de; s=20200217; t=1651323841; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UisYOlXnMTpFAbBjgUd94AI9jvde3StexINeGdn9Q6g=; b=sf8nHFrmeey3P7EoUatRCesB4qL2+QnZJQfIfq+9VEwcrB+amZT7Ic7wZXCEj2Q3+2EMQc HH8frcQTWZi/BPZft5CvuoWqGzeKKEUGVTgGWwnp/Gtcmaj967/nFvlp6/x0mESCfnOR/k AtF1loA0Rr0LqJZMnPrIJgd+UFpq5Rs= Received: from localhost.localdomain (fttx-pool-80.245.72.211.bambit.de [80.245.72.211]) by mxbox3.masterlogin.de (Postfix) with ESMTPSA id 4974C3600EF; Sat, 30 Apr 2022 13:04:00 +0000 (UTC) From: Frank Wunderlich To: linux-mediatek@lists.infradead.org, linux-rockchip@lists.infradead.org Cc: Frank Wunderlich , Rob Herring , Krzysztof Kozlowski , Heiko Stuebner , Sean Wang , Landen Chao , DENG Qingfang , Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean , "David S. Miller" , Jakub Kicinski , Paolo Abeni , Matthias Brugger , Peter Geis , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: [RFC v2 1/4] net: dsa: mt7530: rework mt7530_hw_vlan_{add,del} Date: Sat, 30 Apr 2022 15:03:44 +0200 Message-Id: <20220430130347.15190-2-linux@fw-web.de> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220430130347.15190-1-linux@fw-web.de> References: <20220430130347.15190-1-linux@fw-web.de> MIME-Version: 1.0 X-Mail-ID: 0f29a129-8dd7-471f-955e-2cf18b844051 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220430_060406_398960_2C53BA9E X-CRM114-Status: GOOD ( 17.30 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Frank Wunderlich Rework vlan_add/vlan_del functions in preparation for dynamic cpu port. Currently BIT(MT7530_CPU_PORT) is added to new_members, even though mt7530_port_vlan_add() will be called on the CPU port too. Let DSA core decide when to call port_vlan_add for the CPU port, rather than doing it implicitly. We can do autonomous forwarding in a certain VLAN, but not add br0 to that VLAN and avoid flooding the CPU with those packets, if software knows it doesn't need to process them. Suggested-by: Vladimir Oltean Signed-off-by: Frank Wunderlich Reviewed-by: Vladimir Oltean --- v2: new patch --- drivers/net/dsa/mt7530.c | 30 ++++++++++++------------------ 1 file changed, 12 insertions(+), 18 deletions(-) diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 19f0035d4410..46dee0714382 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -1522,11 +1522,11 @@ static void mt7530_hw_vlan_add(struct mt7530_priv *priv, struct mt7530_hw_vlan_entry *entry) { + struct dsa_port *dp = dsa_to_port(priv->ds, entry->port); u8 new_members; u32 val; - new_members = entry->old_members | BIT(entry->port) | - BIT(MT7530_CPU_PORT); + new_members = entry->old_members | BIT(entry->port); /* Validate the entry with independent learning, create egress tag per * VLAN and joining the port as one of the port members. @@ -1537,22 +1537,20 @@ mt7530_hw_vlan_add(struct mt7530_priv *priv, /* Decide whether adding tag or not for those outgoing packets from the * port inside the VLAN. - */ - val = entry->untagged ? MT7530_VLAN_EGRESS_UNTAG : - MT7530_VLAN_EGRESS_TAG; - mt7530_rmw(priv, MT7530_VAWD2, - ETAG_CTRL_P_MASK(entry->port), - ETAG_CTRL_P(entry->port, val)); - - /* CPU port is always taken as a tagged port for serving more than one + * CPU port is always taken as a tagged port for serving more than one * VLANs across and also being applied with egress type stack mode for * that VLAN tags would be appended after hardware special tag used as * DSA tag. */ + if (dsa_port_is_cpu(dp)) + val = MT7530_VLAN_EGRESS_STACK; + else if (entry->untagged) + val = MT7530_VLAN_EGRESS_UNTAG; + else + val = MT7530_VLAN_EGRESS_TAG; mt7530_rmw(priv, MT7530_VAWD2, - ETAG_CTRL_P_MASK(MT7530_CPU_PORT), - ETAG_CTRL_P(MT7530_CPU_PORT, - MT7530_VLAN_EGRESS_STACK)); + ETAG_CTRL_P_MASK(entry->port), + ETAG_CTRL_P(entry->port, val)); } static void @@ -1571,11 +1569,7 @@ mt7530_hw_vlan_del(struct mt7530_priv *priv, return; } - /* If certain member apart from CPU port is still alive in the VLAN, - * the entry would be kept valid. Otherwise, the entry is got to be - * disabled. - */ - if (new_members && new_members != BIT(MT7530_CPU_PORT)) { + if (new_members) { val = IVL_MAC | VTAG_EN | PORT_MEM(new_members) | VLAN_VALID; mt7530_write(priv, MT7530_VAWD1, val);