From nobody Mon Feb 9 17:10:36 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 1512C3A0B36; Thu, 8 Jan 2026 02:35:51 +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=1767839754; cv=none; b=Sr/sTTW7wzfUZYay+BSej4VjN8dtgcysg+UhwVqnImtVo+QAfMY7oJP2GrPS8JjiUr87HsyadVbhdyk2YxbOa3DIBZJteWlRs+u61DsxitaHXKZFMgZwA4xVAvGMKk3sDqGkXIWT0wIS0IZMj52jBSfzobvcPw62LvqlS058x7A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767839754; c=relaxed/simple; bh=7bGxxODUayhFpFH7ufFTYiYf88UtsbWD3WqeYGG1Ask=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=LxLWIv2PyFXbfhhqF/9+8kc7zYiz+2kc0POU/bG4xzetYk/NCbljquecnekaqNLa3CYo6p/XbrRVP6X2un4iNtWxTxYJprDBUq0W+NkUOS2Gy8VFg/QAuI58eQYZK98pVfoPn+cznua9a7BcdzKHhM78WcWDy3WeKh42VxTlyK8= 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=YQFRf0uX; 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="YQFRf0uX" X-SpamFilter-By: ArmorX SpamTrap 5.80 with qID 6082ZRgJ4109080, This message is accepted by code: ctloc85258 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=realsil.com.cn; s=dkim; t=1767839727; bh=7g87re8t4MshgafsWCmjGFNSoUEW5ANnTwm1h447a7Q=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Transfer-Encoding:Content-Type; b=YQFRf0uXhJPTOGh3AyKI7+nwHx479j510w069fKsiHoFer418jaVO46F13LUEZjHu v16Qe6etB/KojPU7Ye8QyasT0iaKMOEGtNYmmhv0ForjIFTpnlRP0p03GCPCtt+fLS HhcLN7ECV8fBddqZKf5oLQ6FWQ82WSk94AP0qwqvmEjQ5JV540xsTRf9sdeZH6ubRM 0qKZ4Hgxb0c+JaJgJKCwPzh4a6ohV6QUaA6AJPUK4kRsI/ud5ghFIXs4pbCUb9KzMd rO/Og/qKrK+kIoc3gU0KSTiW85/Nrxhx9iJsf2D68/xZIGR6azltspkqUr4iI1c9dO uQTmH7PnkGWYA== Received: from RS-EX-MBS2.realsil.com.cn ([172.29.17.102]) by rtits2.realtek.com.tw (8.15.2/3.21/5.94) with ESMTPS id 6082ZRgJ4109080 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 8 Jan 2026 10:35:27 +0800 Received: from RS-EX-MBS2.realsil.com.cn (172.29.17.102) by RS-EX-MBS2.realsil.com.cn (172.29.17.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.39; Thu, 8 Jan 2026 10:35:26 +0800 Received: from 172.29.37.154 (172.29.37.152) by RS-EX-MBS2.realsil.com.cn (172.29.17.102) with Microsoft SMTP Server id 15.2.1748.39 via Frontend Transport; Thu, 8 Jan 2026 10:35:26 +0800 From: javen To: , , , , , , , CC: , , Javen Xu Subject: [PATCH net-next v2 1/2] r8169: add DASH support for RTL8127AP Date: Thu, 8 Jan 2026 10:35:22 +0800 Message-ID: <20260108023523.1019-2-javen_xu@realsil.com.cn> X-Mailer: git-send-email 2.50.1.windows.1 In-Reply-To: <20260108023523.1019-1-javen_xu@realsil.com.cn> References: <20260108023523.1019-1-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 adds DASH support for chip RTL8127AP. Its mac version is RTL_GIGA_MAC_VER_80 and revision id is 0x04. DASH is a standard for remote management of network device, allowing out-of-band control. Signed-off-by: Javen Xu --- drivers/net/ethernet/realtek/r8169_main.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethern= et/realtek/r8169_main.c index 755083852eef..f9df6aadacce 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -1513,6 +1513,10 @@ static enum rtl_dash_type rtl_get_dash_type(struct r= tl8169_private *tp) return RTL_DASH_EP; case RTL_GIGA_MAC_VER_66: return RTL_DASH_25_BP; + case RTL_GIGA_MAC_VER_80: + return (tp->pci_dev->revision =3D=3D 0x04) + ? RTL_DASH_25_BP + : RTL_DASH_NONE; default: return RTL_DASH_NONE; } --=20 2.43.0 From nobody Mon Feb 9 17:10:36 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 DC49720311; Thu, 8 Jan 2026 02:35:52 +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=1767839754; cv=none; b=PX0nh8olCon2wwptsbsGNj9hqkXtNtguk3lEse2EimKkDYH/x4JPN7sjjQUW3ke/r1Zg7zMl8jfYQWOXJytKMAxHC1mZfQrneLzcWixXY0MKrYY0j6Saycfg0ehgf1DvSNSQevCHVA5OmKv7kPEXSllFI+7NZeLPD0PFJTeL5Zk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767839754; c=relaxed/simple; bh=iuQTleN1pvYWkChm6B4I+n65t2S77ZOTWdUKqlFJlm4=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=HGQnWLSYaiqkldiegI6c6c2KxB2LznOIScnkL5qErkaiJFOsgV+tKSzoLML8jNNPHBcwAJGX2XX+mougfd2UURTKfVqjE7FDM5c7bcVizLpkdyyD3sci/EtKK98xNXvdWEM23H7XMhkcc1zW/k+CjEoCYBKUV836iHcuAYfosLg= 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=E0Q2zs5R; 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="E0Q2zs5R" X-SpamFilter-By: ArmorX SpamTrap 5.80 with qID 6082ZSzmC109084, This message is accepted by code: ctloc85258 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=realsil.com.cn; s=dkim; t=1767839728; bh=FZb0rVAZ51h6mOmshTQUcIJsY1q3nMc9WdN5UzVFKR0=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Transfer-Encoding:Content-Type; b=E0Q2zs5Ri9A+RFmT4avEps+iVgj7ifsYfQG0kJaoZF1o+oPyMSNGOq5jDUmwB4tcX 6HKBBPDML8INKjK6ackkDHDtp+TFzC11WYfVaVikrS+t+OB7FdZ+W+dw+bPGIx5RvO K5ojN8+qizjn1rMgVq9NnQRLus8frozWDMrkpkS/VlbToL6uttdvlh9HKN9ue6MSJ5 Sins9l5rv4ZYAe5yrmzIEf8nW5f2gUCGaNe5W3QKhG55AkS4n7nsVpcMGjyuiLmf7L As3LsIIAmxqcrRIdmuPEFkpVAQ+NoudieeI6OIoVasz1THZms63UuPW9n2tNgo9iWX BFgniG3KcZ13g== Received: from RS-EX-MBS2.realsil.com.cn ([172.29.17.102]) by rtits2.realtek.com.tw (8.15.2/3.21/5.94) with ESMTPS id 6082ZSzmC109084 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 8 Jan 2026 10:35:28 +0800 Received: from RS-EX-MBS2.realsil.com.cn (172.29.17.102) by RS-EX-MBS2.realsil.com.cn (172.29.17.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.39; Thu, 8 Jan 2026 10:35:28 +0800 Received: from 172.29.37.154 (172.29.37.152) by RS-EX-MBS2.realsil.com.cn (172.29.17.102) with Microsoft SMTP Server id 15.2.1748.39 via Frontend Transport; Thu, 8 Jan 2026 10:35:28 +0800 From: javen To: , , , , , , , CC: , , Javen Xu Subject: [PATCH net-next v2 2/2] r8169: enable LTR support Date: Thu, 8 Jan 2026 10:35:23 +0800 Message-ID: <20260108023523.1019-3-javen_xu@realsil.com.cn> X-Mailer: git-send-email 2.50.1.windows.1 In-Reply-To: <20260108023523.1019-1-javen_xu@realsil.com.cn> References: <20260108023523.1019-1-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 --- v2: Replace some register numbers with names according to datasheet. --- drivers/net/ethernet/realtek/r8169_main.c | 112 ++++++++++++++++++++++ 1 file changed, 112 insertions(+) diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethern= et/realtek/r8169_main.c index f9df6aadacce..1ee5a0b5a6a0 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -312,6 +312,15 @@ enum rtl_registers { IBIMR0 =3D 0xfa, IBISR0 =3D 0xfb, FuncForceEvent =3D 0xfc, + + ALDPS_LTR =3D 0xe0a2, + LTR_OBFF_LOCK =3D 0xe032, + LTR_SNOOP =3D 0xe034, + +#define ALDPS_LTR_EN BIT(0) +#define LTR_OBFF_LOCK_EN BIT(0) +#define LINK_SPEED_CHANGE_EN BIT(14) +#define LTR_SNOOP_EN GENMASK(15, 14) }; =20 enum rtl8168_8101_registers { @@ -397,6 +406,8 @@ enum rtl8168_registers { #define PWM_EN (1 << 22) #define RXDV_GATED_EN (1 << 19) #define EARLY_TALLY_EN (1 << 16) + COMBO_LTR_EXTEND =3D 0xb6, +#define COMBO_LTR_EXTEND_EN BIT(0) }; =20 enum rtl8125_registers { @@ -2919,6 +2930,104 @@ 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, LTR_SNOOP, 0x0000, LTR_SNOOP_EN); + r8168_mac_ocp_modify(tp, ALDPS_LTR, 0x0000, ALDPS_LTR_EN); + 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, LTR_OBFF_LOCK, 0x0000, LINK_SPEED_CHANGE_EN); + break; + case RTL_GIGA_MAC_VER_70: + r8168_mac_ocp_write(tp, 0xcdd0, 0x9003); + r8168_mac_ocp_modify(tp, LTR_SNOOP, 0x0000, LTR_SNOOP_EN); + r8168_mac_ocp_modify(tp, ALDPS_LTR, 0x0000, ALDPS_LTR_EN); + 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, LTR_OBFF_LOCK, 0x0000, LINK_SPEED_CHANGE_EN); + break; + case RTL_GIGA_MAC_VER_61 ... RTL_GIGA_MAC_VER_66: + r8168_mac_ocp_write(tp, 0xcdd0, 0x9003); + r8168_mac_ocp_modify(tp, LTR_SNOOP, 0x0000, LTR_SNOOP_EN); + r8168_mac_ocp_modify(tp, ALDPS_LTR, 0x0000, ALDPS_LTR_EN); + 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, LTR_OBFF_LOCK, 0x0000, LINK_SPEED_CHANGE_EN); + break; + case RTL_GIGA_MAC_VER_46 ... RTL_GIGA_MAC_VER_48: + case RTL_GIGA_MAC_VER_52: + r8168_mac_ocp_modify(tp, ALDPS_LTR, 0x0000, ALDPS_LTR_EN); + RTL_W8(tp, COMBO_LTR_EXTEND, RTL_R8(tp, COMBO_LTR_EXTEND) | COMBO_LTR_EX= TEND_EN); + fallthrough; + case RTL_GIGA_MAC_VER_51: + r8168_mac_ocp_modify(tp, LTR_SNOOP, 0x0000, LTR_SNOOP_EN); + 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); + break; + default: + return; + } + /* chip can trigger LTR */ + r8168_mac_ocp_modify(tp, LTR_OBFF_LOCK, 0x0003, LTR_OBFF_LOCK_EN); +} + +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 +3056,7 @@ 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 +3078,7 @@ 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 +4922,7 @@ 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