From nobody Tue Feb 10 12:42:10 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 EA8A61FF1B5; Tue, 6 Jan 2026 08:31:08 +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=1767688270; cv=none; b=kkFZ+Ohl+VS2hptsxwkeStcIzAnZtOUnR5U8owJqj908UGTHvQxaU6GkJiJ46rxsZGPK6NjNgk8AI6X+hsQaYr00GVdzee8pJiIlMkeNmt7At5kfoLJoAhigQoetWaJGb2uf3Z1MISO8vfE33x42322co73iV41c06tqMFUMCJ4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767688270; c=relaxed/simple; bh=5O68Oo60UA1CdvhZ/kryCFZIBnlmEuOIkazao4wamUQ=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=HLVAUrsopF+aWYAKu56c7/Vr/hVfsGTlS68GmtXs+IF1v/Y3N8EotUISe/TT8z+1UBYniYZsEo0eK+d2sIsTwubdfvJwzL2Hr2OSsFLgsSB4idyn+TmvpF/Sze6haxEHD9eeWjEXcOBtddKQ0Mq6uiPWQbrmh1TWNQP7AQBkpAg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=realsil.com.cn; spf=pass smtp.mailfrom=realsil.com.cn; dkim=pass (2048-bit key) header.d=realsil.com.cn header.i=@realsil.com.cn header.b=lHtjVPyj; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=realsil.com.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realsil.com.cn Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=realsil.com.cn header.i=@realsil.com.cn header.b="lHtjVPyj" X-SpamFilter-By: ArmorX SpamTrap 5.80 with qID 6068UVjsC438984, This message is accepted by code: ctloc85258 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=realsil.com.cn; s=dkim; t=1767688232; bh=IpSLYzfXywRiobl7Hj9ZodIibNeE4SLgduvAv+unPJI=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Transfer-Encoding:Content-Type; b=lHtjVPyjO6NPfGE6vVSIr66zP/vlGCxQmkd84rFgeKy0l0zLNJRRWY/ALlVofHHS0 spHkOggDiXR1FvNJqDC3kjmSm7wzDnivwNu6ltruFeo6g+MwY8ag0dZjbMpFOpWxCk OT7WpFG/R+3hdvfuDieSY0hd9mWeZGXBkAywrGuZGr7hJ5wJ785JeXgIyRjsfuM7fo oZUMWLBBRNtlsv14m2IBq0OJvrq3M+3FL8F1mJYRLowBG9B/OzXw9C87RCp+YaGXlU 77ysEOAvpmJ2Iw71yohdh9s8EFfI/TRU/rMjtEoTTjBDVGrajVBORHhGJgJIqAGmiA 3rwfUadMqtCMw== Received: from RS-EX-MBS3.realsil.com.cn ([172.29.17.103]) by rtits2.realtek.com.tw (8.15.2/3.21/5.94) with ESMTPS id 6068UVjsC438984 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 6 Jan 2026 16:30:32 +0800 Received: from RS-EX-MBS1.realsil.com.cn (172.29.17.101) by RS-EX-MBS3.realsil.com.cn (172.29.17.103) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.39; Tue, 6 Jan 2026 16:30:31 +0800 Received: from 172.29.37.154 (172.29.37.152) by RS-EX-MBS1.realsil.com.cn (172.29.17.101) with Microsoft SMTP Server id 15.2.1748.39 via Frontend Transport; Tue, 6 Jan 2026 16:30:31 +0800 From: javen To: , , , , , , , CC: , , Javen Xu Subject: [PATCH net-next 2/2] r8169: enable LTR support Date: Tue, 6 Jan 2026 16:30:12 +0800 Message-ID: <20260106083012.164-3-javen_xu@realsil.com.cn> X-Mailer: git-send-email 2.50.1.windows.1 In-Reply-To: <20260106083012.164-1-javen_xu@realsil.com.cn> References: <20260106083012.164-1-javen_xu@realsil.com.cn> 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" From: Javen Xu This patch will enable RTL8168FP/RTL8168EP/RTL8168H/RTL8125/RTL8126/RTL8127 LTR support. Signed-off-by: Javen Xu --- drivers/net/ethernet/realtek/r8169_main.c | 98 +++++++++++++++++++++++ 1 file changed, 98 insertions(+) diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethern= et/realtek/r8169_main.c index f9df6aadacce..97abf95502dc 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -2919,6 +2919,101 @@ static void rtl_disable_exit_l1(struct rtl8169_priv= ate *tp) } } =20 +static void rtl_enable_ltr(struct rtl8169_private *tp) +{ + switch (tp->mac_version) { + case RTL_GIGA_MAC_VER_80: + r8168_mac_ocp_write(tp, 0xcdd0, 0x9003); + r8168_mac_ocp_modify(tp, 0xe034, 0x0000, 0xc000); + r8168_mac_ocp_modify(tp, 0xe0a2, 0x0000, BIT(0)); + r8168_mac_ocp_write(tp, 0xcdd2, 0x8c09); + r8168_mac_ocp_write(tp, 0xcdd8, 0x9003); + r8168_mac_ocp_write(tp, 0xcdd4, 0x9003); + r8168_mac_ocp_write(tp, 0xcdda, 0x9003); + r8168_mac_ocp_write(tp, 0xcdd6, 0x9003); + r8168_mac_ocp_write(tp, 0xcddc, 0x9003); + r8168_mac_ocp_write(tp, 0xcde8, 0x887a); + r8168_mac_ocp_write(tp, 0xcdea, 0x9003); + r8168_mac_ocp_write(tp, 0xcdec, 0x8c09); + r8168_mac_ocp_write(tp, 0xcdee, 0x9003); + r8168_mac_ocp_write(tp, 0xcdf0, 0x8a62); + r8168_mac_ocp_write(tp, 0xcdf2, 0x9003); + r8168_mac_ocp_write(tp, 0xcdf4, 0x883e); + r8168_mac_ocp_write(tp, 0xcdf6, 0x9003); + r8168_mac_ocp_write(tp, 0xcdf8, 0x8849); + r8168_mac_ocp_write(tp, 0xcdfa, 0x9003); + r8168_mac_ocp_modify(tp, 0xe032, 0x0000, BIT(14)); + break; + case RTL_GIGA_MAC_VER_70: + r8168_mac_ocp_write(tp, 0xcdd0, 0x9003); + r8168_mac_ocp_modify(tp, 0xe034, 0x0000, 0xc000); + r8168_mac_ocp_modify(tp, 0xe0a2, 0x0000, BIT(0)); + r8168_mac_ocp_write(tp, 0xcdd2, 0x8c09); + r8168_mac_ocp_write(tp, 0xcdd8, 0x9003); + r8168_mac_ocp_write(tp, 0xcdd4, 0x9003); + r8168_mac_ocp_write(tp, 0xcdda, 0x9003); + r8168_mac_ocp_write(tp, 0xcdd6, 0x9003); + r8168_mac_ocp_write(tp, 0xcddc, 0x9003); + r8168_mac_ocp_write(tp, 0xcde8, 0x887a); + r8168_mac_ocp_write(tp, 0xcdea, 0x9003); + r8168_mac_ocp_write(tp, 0xcdec, 0x8c09); + r8168_mac_ocp_write(tp, 0xcdee, 0x9003); + r8168_mac_ocp_write(tp, 0xcdf0, 0x8a62); + r8168_mac_ocp_write(tp, 0xcdf2, 0x9003); + r8168_mac_ocp_write(tp, 0xcdf4, 0x883e); + r8168_mac_ocp_write(tp, 0xcdf6, 0x9003); + r8168_mac_ocp_modify(tp, 0xe032, 0x0000, BIT(14)); + break; + case RTL_GIGA_MAC_VER_61 ... RTL_GIGA_MAC_VER_66: + r8168_mac_ocp_write(tp, 0xcdd0, 0x9003); + r8168_mac_ocp_modify(tp, 0xe034, 0x0000, 0xc000); + r8168_mac_ocp_modify(tp, 0xe0a2, 0x0000, BIT(0)); + r8168_mac_ocp_write(tp, 0xcdd2, 0x889c); + r8168_mac_ocp_write(tp, 0xcdd8, 0x9003); + r8168_mac_ocp_write(tp, 0xcdd4, 0x8c30); + r8168_mac_ocp_write(tp, 0xcdda, 0x9003); + r8168_mac_ocp_write(tp, 0xcdd6, 0x9003); + r8168_mac_ocp_write(tp, 0xcddc, 0x9003); + r8168_mac_ocp_write(tp, 0xcde8, 0x883e); + r8168_mac_ocp_write(tp, 0xcdea, 0x9003); + r8168_mac_ocp_write(tp, 0xcdec, 0x889c); + r8168_mac_ocp_write(tp, 0xcdee, 0x9003); + r8168_mac_ocp_write(tp, 0xcdf0, 0x8C09); + r8168_mac_ocp_write(tp, 0xcdf2, 0x9003); + r8168_mac_ocp_modify(tp, 0xe032, 0x0000, BIT(14)); + break; + case RTL_GIGA_MAC_VER_46 ... RTL_GIGA_MAC_VER_52: + r8168_mac_ocp_modify(tp, 0xe034, 0x0000, 0xc000); + r8168_mac_ocp_modify(tp, 0xe0a2, 0x0000, BIT(0)); + r8168_mac_ocp_write(tp, 0xe02c, 0x1880); + r8168_mac_ocp_write(tp, 0xe02e, 0x4880); + r8168_mac_ocp_write(tp, 0xcdd8, 0x9003); + r8168_mac_ocp_write(tp, 0xcdda, 0x9003); + r8168_mac_ocp_write(tp, 0xcddc, 0x9003); + r8168_mac_ocp_write(tp, 0xcdd2, 0x883c); + r8168_mac_ocp_write(tp, 0xcdd4, 0x8c12); + r8168_mac_ocp_write(tp, 0xcdd6, 0x9003); + RTL_W8(tp, 0xb6, RTL_R8(tp, 0xb6) | BIT(0)); + break; + default: + return; + } + /* chip can trigger LTR */ + r8168_mac_ocp_modify(tp, 0xe032, 0x0003, BIT(0)); +} + +static void rtl_disable_ltr(struct rtl8169_private *tp) +{ + switch (tp->mac_version) { + case RTL_GIGA_MAC_VER_46 ... RTL_GIGA_MAC_VER_80: + r8168_mac_ocp_modify(tp, 0xe032, 0x0003, 0); + break; + default: + break; + } +} + static void rtl_hw_aspm_clkreq_enable(struct rtl8169_private *tp, bool ena= ble) { u8 val8; @@ -2947,6 +3042,7 @@ static void rtl_hw_aspm_clkreq_enable(struct rtl8169_= private *tp, bool enable) break; } =20 + rtl_enable_ltr(tp); switch (tp->mac_version) { case RTL_GIGA_MAC_VER_46 ... RTL_GIGA_MAC_VER_48: case RTL_GIGA_MAC_VER_61 ... RTL_GIGA_MAC_VER_LAST: @@ -2968,6 +3064,7 @@ static void rtl_hw_aspm_clkreq_enable(struct rtl8169_= private *tp, bool enable) break; } =20 + rtl_disable_ltr(tp); switch (tp->mac_version) { case RTL_GIGA_MAC_VER_70: case RTL_GIGA_MAC_VER_80: @@ -4811,6 +4908,7 @@ static void rtl8169_down(struct rtl8169_private *tp) =20 rtl8169_cleanup(tp); rtl_disable_exit_l1(tp); + rtl_disable_ltr(tp); rtl_prepare_power_down(tp); =20 if (tp->dash_type !=3D RTL_DASH_NONE && !tp->saved_wolopts) --=20 2.43.0