On 02.11.2020 17:29, Gilberto Nunes wrote:
>>From kernel 5.4
>
> ethtool -d enp1s0f1
> RealTek RTL8411 registers:
> --------------------------------------------------------
> 0x00: MAC Address 98:29:a6:e6:e5:6a
> 0x08: Multicast Address Filter 0xffffffff 0xffffffff
> 0x10: Dump Tally Counter Command 0xffffe000 0x00000000
> 0x20: Tx Normal Priority Ring Addr 0xff50b000 0x00000000
> 0x28: Tx High Priority Ring Addr 0x00000000 0x00000000
> 0x30: Flash memory read/write 0x00000000
> 0x34: Early Rx Byte Count 0
> 0x36: Early Rx Status 0x00
> 0x37: Command 0x0c
> Rx on, Tx on
> 0x3C: Interrupt Mask 0x003f
> LinkChg RxNoBuf TxErr TxOK RxErr RxOK
> 0x3E: Interrupt Status 0x0000
>
> 0x40: Tx Configuration 0x5f800f80
> 0x44: Rx Configuration 0x0002cf0f
> 0x48: Timer count 0x00000000
> 0x4C: Missed packet counter 0x000000
> 0x50: EEPROM Command 0x10
> 0x51: Config 0 0x00
> 0x52: Config 1 0xcf
> 0x53: Config 2 0x3c
> 0x54: Config 3 0x60
> 0x55: Config 4 0x11
> 0x56: Config 5 0x02
> 0x58: Timer interrupt 0x00000000
> 0x5C: Multiple Interrupt Select 0x0000
> 0x60: PHY access 0x00000000
> 0x64: TBI control and status 0x12011025
> 0x68: TBI Autonegotiation advertisement (ANAR) 0xf02c
> 0x6A: TBI Link partner ability (LPAR) 0x8000
> 0x6C: PHY status 0xeb
Thanks for the additional info. PHY status 0xeb means that
a link is established at 100Mbps, see following from the
driver source. Having said that the downshift happens also
under 5.4, it's just not reported.
/* rtl8169_PHYstatus */
TBI_Enable = 0x80,
TxFlowCtrl = 0x40,
RxFlowCtrl = 0x20,
_1000bpsF = 0x10,
_100bps = 0x08,
_10bps = 0x04,
LinkStatus = 0x02,
FullDup = 0x01,
1Gbps needs all four cable pairs, whilst 100Mbps is happy
with two. Therefore one reason could be a physical problem
(e.g. corrosion) with a pin in a RJ45 port.
(in case you tried other cables already and you can rule out
a cable problem)
> 0x84: PM wakeup frame 0 0x00000000 0x00000000
> 0x8C: PM wakeup frame 1 0x00000000 0x00000000
> 0x94: PM wakeup frame 2 (low) 0x00000000 0x00000000
> 0x9C: PM wakeup frame 2 (high) 0x00000000 0x00000000
> 0xA4: PM wakeup frame 3 (low) 0x00000000 0x00000000
> 0xAC: PM wakeup frame 3 (high) 0x00000000 0x00000001
> 0xB4: PM wakeup frame 4 (low) 0x00000000 0xd205cde1
> 0xBC: PM wakeup frame 4 (high) 0x00000000 0x00000000
> 0xC4: Wakeup frame 0 CRC 0x0000
> 0xC6: Wakeup frame 1 CRC 0x0000
> 0xC8: Wakeup frame 2 CRC 0x0000
> 0xCA: Wakeup frame 3 CRC 0x0000
> 0xCC: Wakeup frame 4 CRC 0x0000
> 0xDA: RX packet maximum size 0x4000
> 0xE0: C+ Command 0x2060
> VLAN de-tagging
> RX checksumming
> 0xE2: Interrupt Mitigation 0x0000
> TxTimer: 0
> TxPackets: 0
> RxTimer: 0
> RxPackets: 0
> 0xE4: Rx Ring Addr 0xff50f000 0x00000000
> 0xEC: Early Tx threshold 0x27
> 0xF0: Func Event 0x0000003f
> 0xF4: Func Event Mask 0x00000000
> 0xF8: Func Preset State 0x00000003
> 0xFC: Func Force Event 0x00000000
>
>>From kernel 5.9.3
>
> ethtool -d enp1s0f1
> RealTek RTL8411 registers:
> --------------------------------------------------------
> 0x00: MAC Address 98:29:a6:e6:e5:6a
> 0x08: Multicast Address Filter 0xffffffff 0xffffffff
> 0x10: Dump Tally Counter Command 0xffffe000 0x00000000
> 0x20: Tx Normal Priority Ring Addr 0xff582000 0x00000000
> 0x28: Tx High Priority Ring Addr 0x00000000 0x00000000
> 0x30: Flash memory read/write 0x00000000
> 0x34: Early Rx Byte Count 0
> 0x36: Early Rx Status 0x00
> 0x37: Command 0x0c
> Rx on, Tx on
> 0x3C: Interrupt Mask 0x003f
> LinkChg RxNoBuf TxErr TxOK RxErr RxOK
> 0x3E: Interrupt Status 0x0000
>
> 0x40: Tx Configuration 0x5f800f80
> 0x44: Rx Configuration 0x0002cf0f
> 0x48: Timer count 0x00000000
> 0x4C: Missed packet counter 0x000000
> 0x50: EEPROM Command 0x10
> 0x51: Config 0 0x00
> 0x52: Config 1 0xcf
> 0x53: Config 2 0x3c
> 0x54: Config 3 0x60
> 0x55: Config 4 0x11
> 0x56: Config 5 0x02
> 0x58: Timer interrupt 0x00000000
> 0x5C: Multiple Interrupt Select 0x0000
> 0x60: PHY access 0x00000000
> 0x64: TBI control and status 0x12011025
> 0x68: TBI Autonegotiation advertisement (ANAR) 0xf02c
> 0x6A: TBI Link partner ability (LPAR) 0x8000
> 0x6C: PHY status 0xeb
> 0x84: PM wakeup frame 0 0x00000000 0x00000000
> 0x8C: PM wakeup frame 1 0x00000000 0x00000000
> 0x94: PM wakeup frame 2 (low) 0x00000000 0x00000000
> 0x9C: PM wakeup frame 2 (high) 0x00000000 0x00000000
> 0xA4: PM wakeup frame 3 (low) 0x00000000 0x00000000
> 0xAC: PM wakeup frame 3 (high) 0x00000000 0x00000001
> 0xB4: PM wakeup frame 4 (low) 0x00000000 0xd21a30de
> 0xBC: PM wakeup frame 4 (high) 0x00000000 0x00000000
> 0xC4: Wakeup frame 0 CRC 0x0000
> 0xC6: Wakeup frame 1 CRC 0x0000
> 0xC8: Wakeup frame 2 CRC 0x0000
> 0xCA: Wakeup frame 3 CRC 0x0000
> 0xCC: Wakeup frame 4 CRC 0x0000
> 0xDA: RX packet maximum size 0x4000
> 0xE0: C+ Command 0x2060
> VLAN de-tagging
> RX checksumming
> 0xE2: Interrupt Mitigation 0x0000
> TxTimer: 0
> TxPackets: 0
> RxTimer: 0
> RxPackets: 0
> 0xE4: Rx Ring Addr 0xff583000 0x00000000
> 0xEC: Early Tx threshold 0x27
> 0xF0: Func Event 0x0000003f
> 0xF4: Func Event Mask 0x00000000
> 0xF8: Func Preset State 0x00000003
> 0xFC: Func Force Event 0x00000000
>
>
> I also noticed this message when ran update-initramfs -k all -u when
> installed kernel 5.9.3.
> I had made a git clone from linux-firmware and copied this missed
> firmware but no change!
>
> W: Possible missing firmware /lib/firmware/rtl_nic/rtl8125b-2.fw for
> module r8169
>
>
>
> ---
> Gilberto Nunes Ferreira
>
>
>
> Em seg., 2 de nov. de 2020 às 10:40, Heiner Kallweit
> <hkallwe...@gmail.com> escreveu:
>>
>> On 02.11.2020 14:20, Gilberto Nunes wrote:
>>> Hi
>>>
>>> ethtool using 5.4
>>>
>> ethtool doesn't know about the actual speed, because the downshift
>> occurs PHY-internally. Please test actual the speed.
>> Alternatively provide the output of ethtool -d <if>, the RTL8169
>> chip family has an internal register refkecting the actual link speed.
