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Date: Wed, 15 Nov 2017 04:00:18 -0500
From: Kai-Heng Feng <kai.heng.feng@...onical.com>
To: nic_swsd@...ltek.com
Cc: davem@...emloft.net, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org,
Kai-Heng Feng <kai.heng.feng@...onical.com>,
Francois Romieu <romieu@...zoreil.com>,
Hayes Wang <hayeswang@...ltek.com>,
Jörg Otte <jrg.otte@...il.com>
Subject: [PATCH 1/2] r8169: reinstate ALDPS for power saving
Commit ("r8169: enable ALDPS for power saving") caused a regression on
RTL8168evl/8111evl [1], so it got reverted.
Instead of reverting the whole commit, let's reinstate ALDPS for all
models other than RTL8168evl/8111evl.
[1] https://lkml.org/lkml/2013/1/5/36
Cc: Francois Romieu <romieu@...zoreil.com>
Cc: Hayes Wang <hayeswang@...ltek.com>
Cc: Jörg Otte <jrg.otte@...il.com>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
---
drivers/net/ethernet/realtek/r8169.c | 58 +++++++++++++++++++++++++++++-------
1 file changed, 48 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index e03fcf914690..54bb9b15d541 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -733,6 +733,7 @@ enum features {
RTL_FEATURE_WOL = (1 << 0),
RTL_FEATURE_MSI = (1 << 1),
RTL_FEATURE_GMII = (1 << 2),
+ RTL_FEATURE_FW_LOADED = (1 << 3),
};
struct rtl8169_counters {
@@ -2785,8 +2786,10 @@ static void rtl_apply_firmware(struct rtl8169_private *tp)
struct rtl_fw *rtl_fw = tp->rtl_fw;
/* TODO: release firmware once rtl_phy_write_fw signals failures. */
- if (!IS_ERR_OR_NULL(rtl_fw))
+ if (!IS_ERR_OR_NULL(rtl_fw)) {
rtl_phy_write_fw(tp, rtl_fw);
+ tp->features |= RTL_FEATURE_FW_LOADED;
+ }
}
static void rtl_apply_firmware_cond(struct rtl8169_private *tp, u8 reg, u16 val)
@@ -2797,6 +2800,31 @@ static void rtl_apply_firmware_cond(struct rtl8169_private *tp, u8 reg, u16 val)
rtl_apply_firmware(tp);
}
+static void r810x_aldps_disable(struct rtl8169_private *tp)
+{
+ rtl_writephy(tp, 0x1f, 0x0000);
+ rtl_writephy(tp, 0x18, 0x0310);
+ msleep(100);
+}
+
+static void r810x_aldps_enable(struct rtl8169_private *tp)
+{
+ if (!(tp->features & RTL_FEATURE_FW_LOADED))
+ return;
+
+ rtl_writephy(tp, 0x1f, 0x0000);
+ rtl_writephy(tp, 0x18, 0x8310);
+}
+
+static void r8168_aldps_enable_1(struct rtl8169_private *tp)
+{
+ if (!(tp->features & RTL_FEATURE_FW_LOADED))
+ return;
+
+ rtl_writephy(tp, 0x1f, 0x0000);
+ rtl_w0w1_phy(tp, 0x15, 0x1000, 0x0000);
+}
+
static void rtl8169s_hw_phy_config(struct rtl8169_private *tp)
{
static const struct phy_reg phy_reg_init[] = {
@@ -3587,6 +3615,10 @@ static void rtl8168e_2_hw_phy_config(struct rtl8169_private *tp)
rtl_w0w1_phy(tp, 0x10, 0x0000, 0x0400);
rtl_writephy(tp, 0x1f, 0x0000);
+ /* Don't enable ALDPS for RTL8168evl/8111evl.
+ * https://lkml.org/lkml/2013/1/5/36
+ */
+
/* Broken BIOS workaround: feed GigaMAC registers with MAC address. */
rtl_rar_exgmac_set(tp, tp->dev->dev_addr);
}
@@ -3661,6 +3693,8 @@ static void rtl8168f_1_hw_phy_config(struct rtl8169_private *tp)
rtl_writephy(tp, 0x05, 0x8b85);
rtl_w0w1_phy(tp, 0x06, 0x4000, 0x0000);
rtl_writephy(tp, 0x1f, 0x0000);
+
+ r8168_aldps_enable_1(tp);
}
static void rtl8168f_2_hw_phy_config(struct rtl8169_private *tp)
@@ -3668,6 +3702,8 @@ static void rtl8168f_2_hw_phy_config(struct rtl8169_private *tp)
rtl_apply_firmware(tp);
rtl8168f_hw_phy_config(tp);
+
+ r8168_aldps_enable_1(tp);
}
static void rtl8411_hw_phy_config(struct rtl8169_private *tp)
@@ -4019,6 +4055,8 @@ static void rtl8168h_2_hw_phy_config(struct rtl8169_private *tp)
rtl_w0w1_phy(tp, 0x10, 0x0000, 0x0004);
rtl_writephy(tp, 0x1f, 0x0000);
+
+ r8168_aldps_enable_1(tp);
}
static void rtl8168ep_1_hw_phy_config(struct rtl8169_private *tp)
@@ -4188,21 +4226,19 @@ static void rtl8105e_hw_phy_config(struct rtl8169_private *tp)
};
/* Disable ALDPS before ram code */
- rtl_writephy(tp, 0x1f, 0x0000);
- rtl_writephy(tp, 0x18, 0x0310);
- msleep(100);
+ r810x_aldps_disable(tp);
rtl_apply_firmware(tp);
rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
+
+ r810x_aldps_enable(tp);
}
static void rtl8402_hw_phy_config(struct rtl8169_private *tp)
{
/* Disable ALDPS before setting firmware */
- rtl_writephy(tp, 0x1f, 0x0000);
- rtl_writephy(tp, 0x18, 0x0310);
- msleep(20);
+ r810x_aldps_disable(tp);
rtl_apply_firmware(tp);
@@ -4212,6 +4248,8 @@ static void rtl8402_hw_phy_config(struct rtl8169_private *tp)
rtl_writephy(tp, 0x10, 0x401f);
rtl_writephy(tp, 0x19, 0x7030);
rtl_writephy(tp, 0x1f, 0x0000);
+
+ r810x_aldps_enable(tp);
}
static void rtl8106e_hw_phy_config(struct rtl8169_private *tp)
@@ -4224,9 +4262,7 @@ static void rtl8106e_hw_phy_config(struct rtl8169_private *tp)
};
/* Disable ALDPS before ram code */
- rtl_writephy(tp, 0x1f, 0x0000);
- rtl_writephy(tp, 0x18, 0x0310);
- msleep(100);
+ r810x_aldps_disable(tp);
rtl_apply_firmware(tp);
@@ -4234,6 +4270,8 @@ static void rtl8106e_hw_phy_config(struct rtl8169_private *tp)
rtl_writephy_batch(tp, phy_reg_init, ARRAY_SIZE(phy_reg_init));
rtl_eri_write(tp, 0x1d0, ERIAR_MASK_0011, 0x0000, ERIAR_EXGMAC);
+
+ r810x_aldps_enable(tp);
}
static void rtl_hw_phy_config(struct net_device *dev)
--
2.14.1
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