From patchwork Sun Feb 9 12:09:00 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 13966878 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 0EC6DC02199 for ; Sun, 9 Feb 2025 12:26:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=dVJKNQp74SUlbEoM5EL+FSOVeD+CGl+0dGi6Z2vHU0s=; b=FxSootpqWaDXQ0IRVCtVI9tCSS xj/5a+n7W5aqeE8SjU2j4CKFAdspyNNlgB/MnQgNLIWX7NvVR6nu8ahvuUGWW7oQs5g+v0V0bp+MA xgKS1HUfhrzdW4Z0NlPdFgj+H0lfcCvtgW8Q4aVvOvihQUPPxxeLYIFgdMFMVCFKN8BK+ySVyfHmg rdvRdqqUOcJDbW6L3qx31PrUfjAKhBpfqeCvgde8MhkP0YNUOhmX4fCQDdmxBnZxDp4X2sKPknYUi J72z6/4gSwQ7UpwesGcPRANqLlu/4LIe5cd3BvReCtt2QUdaaS94JjijSG0+lyQxUOq5jM20sRyYr U0/6RzMA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1th6Nr-0000000EqIr-2lz9; Sun, 09 Feb 2025 12:25:59 +0000 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1th684-0000000Endw-2TvK; Sun, 09 Feb 2025 12:09:41 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 3730EA40240; Sun, 9 Feb 2025 12:07:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 12472C4CEE2; Sun, 9 Feb 2025 12:09:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1739102979; bh=C1aFaWCNYf7kg2GH5A7lQw7Iuw2I/SkqM+nxoGYrGqc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=LX3rKGxuCVWzZ1YUV1qDWtoC178FikIiMBYdF8qT8YZuuOhiuYqLIUCZuSED5nhHS vtpi1ymnaA3Gw+oY9FAdBOY9Q5Gu85n9aZPaLqcXXQyUj9VVFcpstB+znrUbhQunDE ujYCZAWcA6yNNqaCK/hBT/q6yFQaizTJ1T6+zEDim6XIo9UaaRD/1/YEn8kKaDgYgQ bP1eev5felglHWDj3yFHpmydkiPgjm5GNPSx57CDMgFh00KEUe3wKHFNiXTFe66Ung eASpq+LlddmDATDdO98jnl4OmCRFzqoQMqIrNWcCJ6Zo1iTFLi8rqjqFeenTtfxr8p dvvsXoPFaxrCQ== From: Lorenzo Bianconi Date: Sun, 09 Feb 2025 13:09:00 +0100 Subject: [PATCH net-next v3 07/16] net: dsa: mt7530: Enable Rx sptag for EN7581 SoC MIME-Version: 1.0 Message-Id: <20250209-airoha-en7581-flowtable-offload-v3-7-dba60e755563@kernel.org> References: <20250209-airoha-en7581-flowtable-offload-v3-0-dba60e755563@kernel.org> In-Reply-To: <20250209-airoha-en7581-flowtable-offload-v3-0-dba60e755563@kernel.org> To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Felix Fietkau , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , Philipp Zabel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Lorenzo Bianconi , "Chester A. Unal" , Daniel Golle , DENG Qingfang , Andrew Lunn , Vladimir Oltean Cc: netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org, upstream@airoha.com X-Mailer: b4 0.14.2 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250209_040940_752370_6EE10F35 X-CRM114-Status: GOOD ( 11.21 ) 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 Packet Processor Engine (PPE) module used for hw acceleration on EN7581 mac block, in order to properly parse packets, requires DSA untagged packets on TX side and read DSA tag from DMA descriptor on RX side. For this reason, enable RX Special Tag (SPTAG) for EN7581 SoC. This is a preliminary patch to enable netfilter flowtable hw offloading on EN7581 SoC. Signed-off-by: Lorenzo Bianconi --- drivers/net/dsa/mt7530.c | 5 +++++ drivers/net/dsa/mt7530.h | 4 ++++ 2 files changed, 9 insertions(+) diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 1c83af805209cae40c56138fa8f72261e396f58c..eec8ba9d68088f1dbb2a774a32d3d60af1a9784c 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -2586,6 +2586,11 @@ mt7531_setup_common(struct dsa_switch *ds) /* Allow mirroring frames received on the local port (monitor port). */ mt7530_set(priv, MT753X_AGC, LOCAL_EN); + /* Enable Special Tag for rx frames */ + if (priv->id == ID_EN7581) + mt7530_write(priv, MT753X_CPORT_SPTAG_CFG, + CPORT_SW2FE_STAG_EN | CPORT_FE2SW_STAG_EN); + /* Flush the FDB table */ ret = mt7530_fdb_cmd(priv, MT7530_FDB_FLUSH, NULL); if (ret < 0) diff --git a/drivers/net/dsa/mt7530.h b/drivers/net/dsa/mt7530.h index 448200689f492dcb73ef056d7284090c1c662e67..349d72a35771f35d478244ab29be1801b3466a5f 100644 --- a/drivers/net/dsa/mt7530.h +++ b/drivers/net/dsa/mt7530.h @@ -627,6 +627,10 @@ enum mt7531_xtal_fsel { #define MT7531_GPIO12_RG_RXD3_MASK GENMASK(19, 16) #define MT7531_EXT_P_MDIO_12 (2 << 16) +#define MT753X_CPORT_SPTAG_CFG 0x7c10 +#define CPORT_SW2FE_STAG_EN BIT(1) +#define CPORT_FE2SW_STAG_EN BIT(0) + /* Registers for LED GPIO control (MT7530 only) * All registers follow this pattern: * [ 2: 0] port 0