From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 942182110E; Tue, 27 May 2025 17:34:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748367286; cv=none; b=kaByKhmPenVC7ddaCuAh9knHVxJUlCdS/4T8KP7T9qrc76bsC5arZOmhPdwO1KGDruWp9SxmaehHyqOoEXdiwBclGuZtPpCcPoKhWmJN2/pWlfth/EMY/FLL85glB7ogUHhI8zXhzmFHH4aPpg25xRAbonzxr6HMEJvwoeLZELM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748367286; c=relaxed/simple; bh=Ki0iVFE/7J/kRybpNFW4ULpVFyJbgk0q71Iye7PZIzY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=FiiVKnBXTIuXdtITqX8xJTnqR81nomXuLODyf74NDZx5KMxWuPAuNBExM1OxPwGJK9MIpKolAwjo5WTZ3xaboqpq1VUFCb+6Nef/zdFqOv5gjqdy/F/bSD6eMlTQsPStPpzO/dJWzSIfj7AJH2imd1laRWJCnlLMhbME/kRrEkY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=R88KjucD; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="R88KjucD" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 12DD9C4CEE9; Tue, 27 May 2025 17:34:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1748367286; bh=Ki0iVFE/7J/kRybpNFW4ULpVFyJbgk0q71Iye7PZIzY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=R88KjucDbkV4YCCvYsfxZyhpPSgC8mOx9mX3J4wYr+lNCNeTDkScU7xkxQMx42jmz Lu8lmLPdB+nXWsB+3kfLHd6MuucgCiwItfSBdkqcYheBBHs6ckq5UNNwIcEPIaSZ4o Z8HirEb25B3ug81dGKerxhNh5b5sRYRgpFCZQjls= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Eric Woudstra , Paolo Abeni , Sasha Levin Subject: [PATCH 6.14 338/783] net: ethernet: mtk_ppe_offload: Allow QinQ, double ETH_P_8021Q only Date: Tue, 27 May 2025 18:22:15 +0200 Message-ID: <20250527162526.829564416@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250527162513.035720581@linuxfoundation.org> References: <20250527162513.035720581@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Eric Woudstra [ Upstream commit 7fe0353606d77a32c4c7f2814833dd1c043ebdd2 ] mtk_foe_entry_set_vlan() in mtk_ppe.c already supports double vlan tagging, but mtk_flow_offload_replace() in mtk_ppe_offload.c only allows for 1 vlan tag, optionally in combination with pppoe and dsa tags. However, mtk_foe_entry_set_vlan() only allows for setting the vlan id. The protocol cannot be set, it is always ETH_P_8021Q, for inner and outer tag. This patch adds QinQ support to mtk_flow_offload_replace(), only in the case that both inner and outer tags are ETH_P_8021Q. Only PPPoE-in-Q (as before) and Q-in-Q are allowed. A combination of PPPoE and Q-in-Q is not allowed. Signed-off-by: Eric Woudstra Link: https://patch.msgid.link/20250225201509.20843-1-ericwouds@gmail.com Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- .../net/ethernet/mediatek/mtk_ppe_offload.c | 22 +++++++++---------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c index f20bb390df3ad..c855fb799ce14 100644 --- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c +++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c @@ -34,8 +34,10 @@ struct mtk_flow_data { u16 vlan_in; struct { - u16 id; - __be16 proto; + struct { + u16 id; + __be16 proto; + } vlans[2]; u8 num; } vlan; struct { @@ -349,18 +351,19 @@ mtk_flow_offload_replace(struct mtk_eth *eth, struct flow_cls_offload *f, case FLOW_ACTION_CSUM: break; case FLOW_ACTION_VLAN_PUSH: - if (data.vlan.num == 1 || + if (data.vlan.num + data.pppoe.num == 2 || act->vlan.proto != htons(ETH_P_8021Q)) return -EOPNOTSUPP; - data.vlan.id = act->vlan.vid; - data.vlan.proto = act->vlan.proto; + data.vlan.vlans[data.vlan.num].id = act->vlan.vid; + data.vlan.vlans[data.vlan.num].proto = act->vlan.proto; data.vlan.num++; break; case FLOW_ACTION_VLAN_POP: break; case FLOW_ACTION_PPPOE_PUSH: - if (data.pppoe.num == 1) + if (data.pppoe.num == 1 || + data.vlan.num == 2) return -EOPNOTSUPP; data.pppoe.sid = act->pppoe.sid; @@ -450,12 +453,9 @@ mtk_flow_offload_replace(struct mtk_eth *eth, struct flow_cls_offload *f, if (offload_type == MTK_PPE_PKT_TYPE_BRIDGE) foe.bridge.vlan = data.vlan_in; - if (data.vlan.num == 1) { - if (data.vlan.proto != htons(ETH_P_8021Q)) - return -EOPNOTSUPP; + for (i = 0; i < data.vlan.num; i++) + mtk_foe_entry_set_vlan(eth, &foe, data.vlan.vlans[i].id); - mtk_foe_entry_set_vlan(eth, &foe, data.vlan.id); - } if (data.pppoe.num == 1) mtk_foe_entry_set_pppoe(eth, &foe, data.pppoe.sid); -- 2.39.5