FYI
I changed 4.12.0 drivers/net/phy/realtek.c RTL8211F code to equal the
3.14.29 amlogic/ethernet/phy/am_realtek.c code and now the networking
works without TCP stalls.
I don't say below patch should be considered mainstream (as maybe some
4.12.0 rtl8211f_config_init code should not be removed) but sure
someone could figure out what best patch is...
--
# diff -U2 realtek.c.orig realtek.c
--- realtek.c.orig 2017-07-03 01:07:02.000000000 +0200
+++ realtek.c 2017-07-11 01:32:20.273445023 +0200
@@ -94,28 +94,27 @@
}
+#define RTL8211F_MMD_CTRL 0x0D
+#define RTL8211F_MMD_DATA 0x0E
+#define RTL8211E_INER_LINK_STAT 0x10
+
static int rtl8211f_config_init(struct phy_device *phydev)
{
- int ret;
- u16 reg;
-
- ret = genphy_config_init(phydev);
- if (ret < 0)
- return ret;
-
- phy_write(phydev, RTL8211F_PAGE_SELECT, 0xd08);
- reg = phy_read(phydev, 0x11);
-
- /* enable TX-delay for rgmii-id and rgmii-txid, otherwise disable it */
- if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
- phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
- reg |= RTL8211F_TX_DELAY;
- else
- reg &= ~RTL8211F_TX_DELAY;
-
- phy_write(phydev, 0x11, reg);
- /* restore to default page 0 */
- phy_write(phydev, RTL8211F_PAGE_SELECT, 0x0);
-
+ int val;
+/* we want to disable eee */
+ phy_write(phydev, RTL8211F_MMD_CTRL, 0x7);
+ phy_write(phydev, RTL8211F_MMD_DATA, 0x3c);
+ phy_write(phydev, RTL8211F_MMD_CTRL, 0x4007);
+ phy_write(phydev, RTL8211F_MMD_DATA, 0x0);
+/* disable 1000m adv*/
+ val = phy_read(phydev, 0x9);
+ phy_write(phydev, 0x9, val&(~(1<<9)));
+/* rx reg 21 bit 3 tx reg 17 bit 8 */
+/*
+ phy_write(phydev, 0x1f, 0xd08);
+ val = phy_read(phydev, 0x15);
+ phy_write(phydev, 0x15,val| 1<<21);
+ */
return 0;
+/* Enable Auto Power Saving mode */
}
@@ -167,6 +166,6 @@
.name = "RTL8211F Gigabit Ethernet",
.phy_id_mask = 0x001fffff,
- .features = PHY_GBIT_FEATURES,
- .flags = PHY_HAS_INTERRUPT,
+ .features = PHY_GBIT_FEATURES | SUPPORTED_Pause |
SUPPORTED_Asym_Pause,
+ .flags = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
.config_aneg = &genphy_config_aneg,
--
On 2017 Jul 08, Marc Duponcheel wrote:
> Hi all
>
> Similar to 'crow'
>
> ARM GLX Khadas VIM Pro - Ethernet detected as only 10Mbps and stalled after
> some traffic
>
> I also have the situation where copying large file over LAN stalls.
>
> 3.14.29 performance is good 4.12.0 performance not
>
>
> Perhaps one must compare 3.14.29 am_realtek.c and realtek.c with 4.12.0
> realtek.c
>
>
> thanks
have a nice day
