From nobody Sun Feb 8 02:04:46 2026 Received: from mx4.wp.pl (mx4.wp.pl [212.77.101.11]) (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 5103D2C08CF for ; Sat, 25 Oct 2025 22:08:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.77.101.11 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761430130; cv=none; b=UD4HvCWW12fD+qd0Ai0iUQLf9rMxNeU1nE1h+EmDbXwtOeuP/IxUc9eepFpw2Y/E5ERyU9gSxSlOm9XuybNAwYrESgcZl68+BYcgMvePn+71TM/0qxIzes0mgsbdKsg+uelTyKuYo+oZnaVPZQC365X2+o5dn4aOPDp6zy/PS74= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761430130; c=relaxed/simple; bh=f9ih9tij0KNNhi1lebuB1Vprue5IVVThcI2hedxKFNY=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=Aiph+XuxhRALVpPPhpAh95LGBG1ad+7i/8AGvBJvlE3xJop62s3VYQhQU6HEZnkxI+lwkxRZIkCTbF6Ux6zxBXLQlV8/6rAah0yTBjz78rWVBAEnYpPbOvOhPMnvR8LrO7xAOA6nLmb7/lCufzLegBLOAbutnytutGD8dK/OKlY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=wp.pl; spf=pass smtp.mailfrom=wp.pl; dkim=pass (2048-bit key) header.d=wp.pl header.i=@wp.pl header.b=PICc6vnv; arc=none smtp.client-ip=212.77.101.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=wp.pl Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=wp.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=wp.pl header.i=@wp.pl header.b="PICc6vnv" Received: (wp-smtpd smtp.wp.pl 43762 invoked from network); 26 Oct 2025 00:08:39 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wp.pl; s=20241105; t=1761430119; bh=eSfAFgNC/0EjC5j9png0rjSse9w3FkoN70Emx1DMA7I=; h=From:To:Subject; b=PICc6vnvSevny8x5kIS0tnj7B2G2/oWevjwDAp2oFTE84vH7qTgowC7OiM2CTd5jw dPW2j46cZ4GAIKVjEqtdZ/Ag0E8UKRJ4tfTwaYD0Rv9DKVSJyZbC7Zdij3PWWZGduD 0MeidUMxMW3n1BYgIIKdB8GKh8BAe/5qBOzA6NTnBW6XINwJKLBp593ZFbPHBwuKJe Im441USdXY6oAk5R8Rbk9wALMnsyuCO0/73/B4mSj138Jgtt2gLcQir1EdPZGA4weZ I5LyM408nEK9PSAZ4Prdj6khs49e/37fIX9l/ZeijCEFvnnRjqhwQqbGeMiLeXUeeY w+Tg1yQPRSFDg== Received: from 83.24.132.245.ipv4.supernova.orange.pl (HELO laptop-olek.home) (olek2@wp.pl@[83.24.132.245]) (envelope-sender ) by smtp.wp.pl (WP-SMTPD) with ECDHE-RSA-AES256-GCM-SHA384 encrypted SMTP for ; 26 Oct 2025 00:08:39 +0200 From: Aleksander Jan Bajkowski To: nbd@nbd.name, lorenzo@kernel.org, ryder.lee@mediatek.com, shayne.chen@mediatek.com, sean.wang@mediatek.com, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, StanleyYP.Wang@mediatek.com, howard-yh.hsu@mediatek.com, chad@monroe.io, rosenp@gmail.com, luoxueqin@kylinos.cn, olek2@wp.pl, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH wireless-next v2] wifi: mt76: add tx checksum offload for mt7915, mt7921, mt7981 and mt7986 Date: Sun, 26 Oct 2025 00:07:06 +0200 Message-ID: <20251025220837.1128924-1-olek2@wp.pl> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-WP-MailID: 4b191366fa77f2d6b256f30d3de3f17e X-WP-AV: skaner antywirusowy Poczty Wirtualnej Polski X-WP-SPAM: NO 0000000 [4VME] Content-Type: text/plain; charset="utf-8" Supports IPv4 and IPv6 TCP + UDP In various tests between MT7986 and Intel BE200, I observed a performance boost ranging from 2 to 12%, with an average of 5.5%. I did the tests on the MT7915, MT7981, MT7986, and MT7921 variants. The MT7922, MT7925, and MT799x are untouched for now and still have checksumming disabled. Signed-off-by: Felix Fietkau [rebased and resolved conflicts] Signed-off-by: Aleksander Jan Bajkowski --- v2: - corrected TX CSUM enabling for MT7921 --- drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c | 5 +++++ drivers/net/wireless/mediatek/mt76/mt7915/init.c | 3 ++- drivers/net/wireless/mediatek/mt76/mt792x_core.c | 3 +++ 3 files changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c b/drivers= /net/wireless/mediatek/mt76/mt76_connac_mac.c index 0db00efe88b0..e31b3e7e2038 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c @@ -372,6 +372,9 @@ mt76_connac2_mac_write_txwi_8023(__le32 *txwi, struct s= k_buff *skb, wmm =3D sta->wme; } =20 + val =3D FIELD_PREP(MT_TXD0_ETH_TYPE_OFFSET, 10); + txwi[0] |=3D cpu_to_le32(val); + val =3D FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_3) | FIELD_PREP(MT_TXD1_TID, tid); =20 @@ -391,6 +394,8 @@ mt76_connac2_mac_write_txwi_8023(__le32 *txwi, struct s= k_buff *skb, =20 val =3D FIELD_PREP(MT_TXD7_TYPE, fc_type) | FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype); + if (skb->ip_summed =3D=3D CHECKSUM_PARTIAL) + val |=3D MT_TXD7_IP_SUM | MT_TXD7_UDP_TCP_SUM; =20 txwi[7] |=3D cpu_to_le32(val); } diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net= /wireless/mediatek/mt76/mt7915/init.c index 5ea8b46e092e..a3bab240afb7 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c @@ -359,7 +359,8 @@ mt7915_init_wiphy(struct mt7915_phy *phy) hw->queues =3D 4; hw->max_rx_aggregation_subframes =3D IEEE80211_MAX_AMPDU_BUF_HE; hw->max_tx_aggregation_subframes =3D IEEE80211_MAX_AMPDU_BUF_HE; - hw->netdev_features =3D NETIF_F_RXCSUM; + hw->netdev_features =3D NETIF_F_RXCSUM | + NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; =20 if (mtk_wed_device_active(&mdev->mmio.wed)) hw->netdev_features |=3D NETIF_F_HW_TC; diff --git a/drivers/net/wireless/mediatek/mt76/mt792x_core.c b/drivers/net= /wireless/mediatek/mt76/mt792x_core.c index c0e56541a954..a1e5c77d4f75 100644 --- a/drivers/net/wireless/mediatek/mt76/mt792x_core.c +++ b/drivers/net/wireless/mediatek/mt76/mt792x_core.c @@ -632,6 +632,9 @@ int mt792x_init_wiphy(struct ieee80211_hw *hw) } hw->netdev_features =3D NETIF_F_RXCSUM; =20 + if (is_mt7921(&dev->mt76)) + hw->netdev_features |=3D NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; + hw->radiotap_timestamp.units_pos =3D IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US; =20 --=20 2.47.3