netdev - [PATCH net-next 4/4] r8169: add support for EEE on RTL8125

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <cc93aedc-aa1b-fe52-414d-34c17e6feace@gmail.com>
Date:   Tue, 27 Aug 2019 20:42:45 +0200
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Realtek linux nic maintainers <nic_swsd@...ltek.com>,
        David Miller <davem@...emloft.net>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Chun-Hao Lin <hau@...ltek.com>
Subject: [PATCH net-next 4/4] r8169: add support for EEE on RTL8125

This adds EEE support for RTL8125 based on the vendor driver.
Supported is EEE for 100Mbps and 1Gbps. Realtek recommended to not yet
enable EEE for 2.5Gbps due to potential compatibility issues. Also
ethtool doesn't support yet controlling EEE for 2.5Gbps and 5Gbps.

Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
 drivers/net/ethernet/realtek/r8169_main.c | 24 +++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index d9adc45fa..b00dbee0c 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -2271,6 +2271,12 @@ static void rtl8168_config_eee_mac(struct rtl8169_private *tp)
 	rtl_eri_set_bits(tp, 0x1b0, ERIAR_MASK_1111, 0x0003);
 }
 
+static void rtl8125_config_eee_mac(struct rtl8169_private *tp)
+{
+	r8168_mac_ocp_modify(tp, 0xe040, 0, BIT(1) | BIT(0));
+	r8168_mac_ocp_modify(tp, 0xeb62, 0, BIT(2) | BIT(1));
+}
+
 static void rtl8168f_config_eee_phy(struct rtl8169_private *tp)
 {
 	struct phy_device *phydev = tp->phydev;
@@ -2301,6 +2307,16 @@ static void rtl8168h_config_eee_phy(struct rtl8169_private *tp)
 	phy_modify_paged(phydev, 0xa42, 0x14, 0x0000, 0x0080);
 }
 
+static void rtl8125_config_eee_phy(struct rtl8169_private *tp)
+{
+	struct phy_device *phydev = tp->phydev;
+
+	rtl8168h_config_eee_phy(tp);
+
+	phy_modify_paged(phydev, 0xa6d, 0x12, 0x0001, 0x0000);
+	phy_modify_paged(phydev, 0xa6d, 0x14, 0x0010, 0x0000);
+}
+
 static void rtl8169s_hw_phy_config(struct rtl8169_private *tp)
 {
 	static const struct phy_reg phy_reg_init[] = {
@@ -3672,6 +3688,9 @@ static void rtl8125_1_hw_phy_config(struct rtl8169_private *tp)
 	phy_modify_paged(phydev, 0xbf0, 0x15, 0x0e00, 0x0a00);
 	phy_modify_paged(phydev, 0xa5c, 0x10, 0x0400, 0x0000);
 	phy_modify_paged(phydev, 0xa44, 0x11, 0x0000, 0x0800);
+
+	rtl8125_config_eee_phy(tp);
+	rtl_enable_eee(tp);
 }
 
 static void rtl8125_2_hw_phy_config(struct rtl8169_private *tp)
@@ -3741,6 +3760,9 @@ static void rtl8125_2_hw_phy_config(struct rtl8169_private *tp)
 	phy_modify_paged(phydev, 0xad4, 0x17, 0x0010, 0x0000);
 	phy_modify_paged(phydev, 0xa86, 0x15, 0x0001, 0x0000);
 	phy_modify_paged(phydev, 0xa44, 0x11, 0x0000, 0x0800);
+
+	rtl8125_config_eee_phy(tp);
+	rtl_enable_eee(tp);
 }
 
 static void rtl_hw_phy_config(struct net_device *dev)
@@ -5263,6 +5285,8 @@ static void rtl_hw_start_8125_common(struct rtl8169_private *tp)
 
 	rtl_udelay_loop_wait_low(tp, &rtl_mac_ocp_e00e_cond, 1000, 10);
 
+	rtl8125_config_eee_mac(tp);
+
 	RTL_W32(tp, MISC, RTL_R32(tp, MISC) & ~RXDV_GATED_EN);
 	udelay(10);
 }
-- 
2.23.0