From nobody Thu Apr 2 17:14:28 2026 Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (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 7106D36BCFD; Fri, 27 Mar 2026 03:30:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774582214; cv=none; b=M/395tIs5W6RoNzrsstPf76MoqovjGuEf6f4KEAKJLHsdwCfFZX/1rMCB4Z1piD2kubvfBIC7d1na8sTVl3dej3YHGNXIFqaFQ395fkaXp8dHVy2nVlrCP4KXqUmXtpcCP8eBP6hUWykGa0fa1LKS44c65SDQYsN1VkYZaE95lM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774582214; c=relaxed/simple; bh=b81KdN662/X/cQnamq8uyRN4wBy0hvARXsNQJsKiJAk=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=KID47A8KdjXEPz3tnD8kgg4A3os2wvo4+OqvYw9WsVJxOB9U4bs1VAZljXL/xsZbCIWDZciFCAs8dmh1MAglVqh3gPQIq9lMOGF/9/TF9eFn4VcD6Pg7Q+0Yjt7GzqA/jxXIUoUOAkrpnlXfCS7FFCVh2X4o8iYaSJ8Ng07ETeQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; dkim=pass (2048-bit key) header.d=realtek.com header.i=@realtek.com header.b=qiaK4ixx; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=realtek.com header.i=@realtek.com header.b="qiaK4ixx" X-SpamFilter-By: ArmorX SpamTrap 5.80 with qID 62R3TkkV62864817, This message is accepted by code: ctloc85258 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=realtek.com; s=dkim; t=1774582186; bh=DFu5p6blwaTSpFrV/yKTr+hM46k87qhBmYMi69YJzP0=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version: Content-Transfer-Encoding:Content-Type; b=qiaK4ixxVnJqEuhXpx4veOxZWnKCs1NeaPa0mN/aRxMgs+LY0IjfBkn2CvOd14HnC BAZkYMaLAGVcys5i/ZWhr5OY/5h56leSGPIAhHp0KNIRd8+9WqT8s3MUAHQ/l4YHPK B4EsjQpnKEvmG9NL7N3Meg6wdMl5mvFMjecysVYgcV75Fvv7fJAS1VtQ+KZpRwgnvR ypX/m1h6hlbuV0bSuHvE5ufboRRKDJ8jPrINrKKdmbndU+ZIQcWSJpzHJ4hZ8Cr+XV EFwBAC7widjAXb7Vt+Wu2OgKOsp4Q9GorgFkLl7i0ywrnnsWynGc4NiwTLDhQhz109 FSktu9iWgAipw== Received: from mail.realtek.com (rtkexhmbs02.realtek.com.tw[172.21.6.41]) by rtits2.realtek.com.tw (8.15.2/3.26/5.94) with ESMTPS id 62R3TkkV62864817 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 27 Mar 2026 11:29:46 +0800 Received: from RTKEXHMBS03.realtek.com.tw (10.21.1.53) by RTKEXHMBS02.realtek.com.tw (172.21.6.41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.10; Fri, 27 Mar 2026 11:29:45 +0800 Received: from RTDOMAIN (172.21.43.26) by RTKEXHMBS03.realtek.com.tw (10.21.1.53) with Microsoft SMTP Server id 15.2.1748.10 via Frontend Transport; Fri, 27 Mar 2026 11:29:45 +0800 From: Justin Lai To: CC: , , , , , , , , , Justin Lai Subject: [PATCH net] rtase: Fix flow control configuration Date: Fri, 27 Mar 2026 11:29:43 +0800 Message-ID: <20260327032943.58569-1-justinlai0215@realtek.com> X-Mailer: git-send-email 2.40.1 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 Content-Type: text/plain; charset="utf-8" Fix hardware setting to allow flow control to be configured via ethtool. Fixes: 85dd839ad1e5 ("rtase: Implement hardware configuration function") Signed-off-by: Justin Lai --- drivers/net/ethernet/realtek/rtase/rtase.h | 4 ++++ drivers/net/ethernet/realtek/rtase/rtase_main.c | 3 +++ 2 files changed, 7 insertions(+) diff --git a/drivers/net/ethernet/realtek/rtase/rtase.h b/drivers/net/ether= net/realtek/rtase/rtase.h index b9209eb6ea73..9bd6872474c1 100644 --- a/drivers/net/ethernet/realtek/rtase/rtase.h +++ b/drivers/net/ethernet/realtek/rtase/rtase.h @@ -153,6 +153,10 @@ enum rtase_registers { #define RTASE_FORCE_TXFLOW_EN BIT(10) #define RTASE_RX_CHKSUM BIT(5) =20 + RTASE_GPHY_STD_00 =3D 0x6024, +#define RTASE_RXFLOW_EN BIT(7) +#define RTASE_TXFLOW_EN BIT(6) + RTASE_Q0_RX_DESC_ADDR0 =3D 0x00E4, RTASE_Q0_RX_DESC_ADDR4 =3D 0x00E8, RTASE_Q1_RX_DESC_ADDR0 =3D 0x4000, diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/= ethernet/realtek/rtase/rtase_main.c index ef13109c49cf..bde9bccfb5a9 100644 --- a/drivers/net/ethernet/realtek/rtase/rtase_main.c +++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c @@ -974,6 +974,9 @@ static void rtase_hw_config(struct net_device *dev) rtase_hw_set_features(dev, dev->features); =20 /* enable flow control */ + reg_data16 =3D rtase_r16(tp, RTASE_GPHY_STD_00); + reg_data16 &=3D ~(RTASE_TXFLOW_EN | RTASE_RXFLOW_EN); + rtase_w16(tp, RTASE_GPHY_STD_00, reg_data16); reg_data16 =3D rtase_r16(tp, RTASE_CPLUS_CMD); reg_data16 |=3D (RTASE_FORCE_TXFLOW_EN | RTASE_FORCE_RXFLOW_EN); rtase_w16(tp, RTASE_CPLUS_CMD, reg_data16); --=20 2.40.1