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Date: Mon, 2 Nov 2020 17:50:16 +0100 From: Heiner Kallweit <hkallweit1@...il.com> To: Gilberto Nunes <gilberto.nunes32@...il.com> Cc: netdev@...r.kernel.org Subject: Re: Fwd: Problem with r8169 module 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 > <hkallweit1@...il.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.
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