From patchwork Sat Jul 13 05:54:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pawel Dembicki X-Patchwork-Id: 13732316 X-Patchwork-Delegate: kuba@kernel.org Received: from mail-ed1-f44.google.com (mail-ed1-f44.google.com [209.85.208.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E5EDC13213B; Sat, 13 Jul 2024 05:55:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.44 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720850122; cv=none; b=pbf7BpLUz/V1gHTvLCRgf38IWhojTgHUOzokfNDEk4pcKNq8/nLW101g5uBAnQ4xwYnT8PNWRbwo0qNtpRYOHlZNVoGRRqWZ10syPeumjzC8CWnE40tZF1A6OizgGDaXTDbGRXq9P/U9FYEfz8y2Vp5b/0AoMKvLEB+4GKtbH1w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720850122; c=relaxed/simple; bh=o/rCHzh3TsTzS58J1nVqrbuxucT8W6zofidoHk39b/k=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=GeAA0uFSJkOEyApeQToSCyYz6D6AWqLHvIiFwk+/EgTpsAIwAoogJ34OEEBjT7Ki5D6o03ZKIB19mXIZBuJcKaqC09z9sq7xOYKkqePI+2pr4FJZ1WwdunedoQFLj3rcLomyRbIlOUcpAHvTV8bN+xlCqITOTVZ/zucY4P9+164= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=Oen9mT7Z; arc=none smtp.client-ip=209.85.208.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Oen9mT7Z" Received: by mail-ed1-f44.google.com with SMTP id 4fb4d7f45d1cf-58ba3e38028so3490561a12.0; Fri, 12 Jul 2024 22:55:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1720850118; x=1721454918; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Smj8J5s5NHO9oAwsf7t0gw+QE3FJUlLdGOJ8zQu72pA=; b=Oen9mT7Z14HAsEgvzyzL6j3WRic6pHC72IR4LZxSlaGy0XFCqtU6Avy11g70cxp01l 6rSBa7yEg9qe72HA2g2mhH3HMKxnBKGdfl8HtG6RJT59nkxacZZvnV4ZeR7wTEqyQcdg qbYb7GGak/pvvgzKNrKugGFTc3YUj5Zug2P2860fd2R1QMmbOPXA+OZwwJmHGepwpuUB CzASob/OFBhuGTF/RgEC18QrMEGZ8KhUJOGmZ2e9JyQolzxoJ3A9bWqKmKhqSzyEl7am 9w5mVhX/pyl3gkbL8q5td1dp1gjhEZNPDG3aBUI5stUQWpkfi77Aw4eEFZ0skjaaFC/5 xLCQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720850118; x=1721454918; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Smj8J5s5NHO9oAwsf7t0gw+QE3FJUlLdGOJ8zQu72pA=; b=H0BVSbKb4QoC3LxxrmarOe66cHpY6Tgj3DtRldkYJ4TL1uG21g22q67/99Z1nwSO0s +SlvoYjtzzDma5SD6OTTgbcCSbNU4AVJyCiuPRrPD6UEWbRIXFo0DBQP/FWvKemvwtFH D6vEgPRtzbOYTBtBJj2D7aU/S7Tc93KDi1hCDrrFjvn6s0vMmXvUoxwygMDCAjIz5LYg BjUQXJxq6NVbsTEJyhyWE9ldhYAdDko7HmMIJ3bc5NZPue4rrEkNkqsORHe/C2RoYWk2 hTVLuaa/VEXIlufUv5fRchpbgeL1JiGh9ejCvxVNznsZ969ojdyrhvlz+UxXB0g5gLY0 drNQ== X-Forwarded-Encrypted: i=1; AJvYcCVTUeTbaVu6qUcDslJL0mzKofFYvsvFQ6GaHxVonAv73qSQVq9R3dT1VjktXWKvfnyWL2ELr+Kl+49iVm2koWzjNuR/MTILfUVx3mt6 X-Gm-Message-State: AOJu0Yx9fzHGlVroYDVxalqj2DIs65m4cZwDcylixwORbRPN+Ezt3vL2 fTHS+jTmSYMm2sxFxmLDGRbKofSMqw136YJcQEgV1X7qUCTHMme5WPRv8J5G X-Google-Smtp-Source: AGHT+IF+2rT9s61GDiwbfXXXulSczYSCLc6RBnbOgDV0Vxh7atrS8pjs8zEZXlvp6mdEaymCBDK1Gw== X-Received: by 2002:a17:907:d8a:b0:a72:7c0d:8fdc with SMTP id a640c23a62f3a-a780b68a311mr1099772066b.14.1720850118221; Fri, 12 Jul 2024 22:55:18 -0700 (PDT) Received: from WBEC325.dom.lan ([2001:470:608f:0:b4ea:33f8:5eca:e7fc]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a79bc7f1ceesm20515666b.126.2024.07.12.22.55.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Jul 2024 22:55:17 -0700 (PDT) From: Pawel Dembicki To: netdev@vger.kernel.org Cc: Paolo Abeni , Pawel Dembicki , Andrew Lunn , Florian Fainelli , Vladimir Oltean , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Claudiu Manoil , Alexandre Belloni , UNGLinuxDriver@microchip.com, Russell King , linux-kernel@vger.kernel.org Subject: [PATCH net-next v3 08/12] net: dsa: vsc73xx: Implement the tag_8021q VLAN operations Date: Sat, 13 Jul 2024 07:54:36 +0200 Message-Id: <20240713055443.1112925-9-paweldembicki@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240713055443.1112925-1-paweldembicki@gmail.com> References: <20240713055443.1112925-1-paweldembicki@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org This patch is a simple implementation of 802.1q tagging in the vsc73xx driver. Currently, devices with DSA_TAG_PROTO_NONE are not functional. The VSC73XX family doesn't provide any tag support for external Ethernet ports. The only option available is VLAN-based tagging, which requires constant hardware VLAN filtering. While the VSC73XX family supports provider bridging, it only supports QinQ without full implementation of 802.1AD. This means it only allows the doubled 0x8100 TPID. In the simple port mode, QinQ is enabled to preserve forwarding of VLAN-tagged frames. Signed-off-by: Pawel Dembicki --- v3: - added the pvid remove routine to 'vsc73xx_tag_8021q_vlan_del' - used 'vsc73xx_vlan_commit_settings' in 'commit_to_hardware' routine v2: - handle raturn values of 'vsc73xx_vlan_commit*' functions v1: - added dsa_tag_8021q_unregister in teardown function - moved dsa_tag_8021q_register after vlan database clean operation --- Before patch series split: https://patchwork.kernel.org/project/netdevbpf/list/?series=841034&state=%2A&archive=both v8: - resend only v7: - adjust tag8021q implementation for vlan filtering implementation changes v6: - resend only v5: - improve commit message v4: - adjust tag8021q implementation for changed untagged vlan storage - minor fixes v3: - Split tagger and tag implementation into separate commits --- drivers/net/dsa/Kconfig | 2 +- drivers/net/dsa/vitesse-vsc73xx-core.c | 70 ++++++++++++++++++++++++-- 2 files changed, 68 insertions(+), 4 deletions(-) diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig index 8508b5145bc1..2d10b4d6cfbb 100644 --- a/drivers/net/dsa/Kconfig +++ b/drivers/net/dsa/Kconfig @@ -127,7 +127,7 @@ config NET_DSA_SMSC_LAN9303_MDIO config NET_DSA_VITESSE_VSC73XX tristate - select NET_DSA_TAG_NONE + select NET_DSA_TAG_VSC73XX_8021Q select FIXED_PHY select VITESSE_PHY select GPIOLIB diff --git a/drivers/net/dsa/vitesse-vsc73xx-core.c b/drivers/net/dsa/vitesse-vsc73xx-core.c index 57a6f34805bd..71be5acb291b 100644 --- a/drivers/net/dsa/vitesse-vsc73xx-core.c +++ b/drivers/net/dsa/vitesse-vsc73xx-core.c @@ -597,7 +597,7 @@ static enum dsa_tag_protocol vsc73xx_get_tag_protocol(struct dsa_switch *ds, * cannot access the tag. (See "Internal frame header" section * 3.9.1 in the manual.) */ - return DSA_TAG_PROTO_NONE; + return DSA_TAG_PROTO_VSC73XX_8021Q; } static int vsc73xx_wait_for_vlan_table_cmd(struct vsc73xx *vsc) @@ -687,7 +687,7 @@ vsc73xx_update_vlan_table(struct vsc73xx *vsc, int port, u16 vid, bool set) static int vsc73xx_setup(struct dsa_switch *ds) { struct vsc73xx *vsc = ds->priv; - int i; + int i, ret; dev_info(vsc->dev, "set up the switch\n"); @@ -768,7 +768,18 @@ static int vsc73xx_setup(struct dsa_switch *ds) INIT_LIST_HEAD(&vsc->vlans); - return 0; + rtnl_lock(); + ret = dsa_tag_8021q_register(ds, htons(ETH_P_8021Q)); + rtnl_unlock(); + + return ret; +} + +static void vsc73xx_teardown(struct dsa_switch *ds) +{ + rtnl_lock(); + dsa_tag_8021q_unregister(ds); + rtnl_unlock(); } static void vsc73xx_init_port(struct vsc73xx *vsc, int port) @@ -1543,12 +1554,62 @@ static int vsc73xx_port_vlan_del(struct dsa_switch *ds, int port, vsc73xx_bridge_vlan_remove_port(vsc73xx_vlan, port); commit_to_hardware = !vsc73xx_tag_8021q_active(dsa_to_port(ds, port)); + if (commit_to_hardware) return vsc73xx_vlan_commit_settings(vsc, port); return 0; } +static int vsc73xx_tag_8021q_vlan_add(struct dsa_switch *ds, int port, u16 vid, + u16 flags) +{ + bool pvid = flags & BRIDGE_VLAN_INFO_PVID; + struct vsc73xx_portinfo *portinfo; + struct vsc73xx *vsc = ds->priv; + bool commit_to_hardware; + int ret; + + portinfo = &vsc->portinfo[port]; + + if (pvid) { + portinfo->pvid_tag_8021q_configured = true; + portinfo->pvid_tag_8021q = vid; + } + + commit_to_hardware = vsc73xx_tag_8021q_active(dsa_to_port(ds, port)); + if (commit_to_hardware) { + ret = vsc73xx_vlan_commit_settings(vsc, port); + if (ret) + return ret; + } + + return vsc73xx_update_vlan_table(vsc, port, vid, true); +} + +static int vsc73xx_tag_8021q_vlan_del(struct dsa_switch *ds, int port, u16 vid) +{ + struct vsc73xx_portinfo *portinfo; + struct vsc73xx *vsc = ds->priv; + bool commit_to_hardware; + int err; + + portinfo = &vsc->portinfo[port]; + + if (portinfo->pvid_tag_8021q_configured && + portinfo->pvid_tag_8021q == vid) { + portinfo->pvid_tag_8021q_configured = false; + + if (commit_to_hardware) { + err = vsc73xx_vlan_commit_settings(vsc, port); + if (err) + return err; + } + } + + return vsc73xx_update_vlan_table(vsc, port, vid, false); +} + static void vsc73xx_refresh_fwd_map(struct dsa_switch *ds, int port, u8 state) { struct dsa_port *other_dp, *dp = dsa_to_port(ds, port); @@ -1638,6 +1699,7 @@ static const struct phylink_mac_ops vsc73xx_phylink_mac_ops = { static const struct dsa_switch_ops vsc73xx_ds_ops = { .get_tag_protocol = vsc73xx_get_tag_protocol, .setup = vsc73xx_setup, + .teardown = vsc73xx_teardown, .phy_read = vsc73xx_phy_read, .phy_write = vsc73xx_phy_write, .get_strings = vsc73xx_get_strings, @@ -1652,6 +1714,8 @@ static const struct dsa_switch_ops vsc73xx_ds_ops = { .port_vlan_add = vsc73xx_port_vlan_add, .port_vlan_del = vsc73xx_port_vlan_del, .phylink_get_caps = vsc73xx_phylink_get_caps, + .tag_8021q_vlan_add = vsc73xx_tag_8021q_vlan_add, + .tag_8021q_vlan_del = vsc73xx_tag_8021q_vlan_del, }; static int vsc73xx_gpio_get(struct gpio_chip *chip, unsigned int offset)