Paul, I reported something very similar some time ago, take a look on the list history (can't search for you right now, sorry).
Andre On Wed, Feb 13, 2019 at 5:25 PM Paul Gildea <gild...@tcd.ie> wrote: > I am having an issue where my link comes up as 10Mb/s if I plug in the > cable after the system has booted, no matter what I connect to. Tested with > kernel 4.7.8 and 4.14.73. If the cable is connected during boot the correct > speed of 1000Mb/s is observed. I have multiple instances of this hardware > setup and it happens with all of them reliably. > > Here is some info: > > driver: e1000e > version: 3.2.6-k > firmware-version: 0.8-4 > expansion-rom-version: > bus-info: 0000:00:1f.6 > supports-statistics: yes > supports-test: yes > supports-eeprom-access: yes > supports-register-dump: yes > supports-priv-flags: no > > > -------------------------------------------------------- > > > MAC Registers > ------------- > 0x00000: CTRL (Device control register) 0x40180240 > Endian mode (buffers): little > Link reset: normal > Set link up: 1 > Invert Loss-Of-Signal: no > Receive flow control: disabled > Transmit flow control: disabled > VLAN mode: enabled > Auto speed detect: disabled > Speed select: 1000Mb/s > Force speed: no > Force duplex: no > 0x00008: STATUS (Device status register) 0x40080000 > Duplex: half > Link up: no link config > TBI mode: disabled > Link speed: 10Mb/s > Bus type: PCI > Bus speed: 33MHz > Bus width: 32-bit > 0x00100: RCTL (Receive control register) 0x04008002 > Receiver: enabled > Store bad packets: disabled > Unicast promiscuous: disabled > Multicast promiscuous: disabled > Long packet: disabled > Descriptor minimum threshold size: 1/2 > Broadcast accept mode: accept > VLAN filter: disabled > Canonical form indicator: disabled > Discard pause frames: filtered > Pass MAC control frames: don't pass > Receive buffer size: 2048 > 0x02808: RDLEN (Receive desc length) 0x00001000 > 0x02810: RDH (Receive desc head) 0x00000000 > 0x02818: RDT (Receive desc tail) 0x000000F0 > 0x02820: RDTR (Receive delay timer) 0x00000000 > 0x00400: TCTL (Transmit ctrl register) 0x3103F0F8 > Transmitter: disabled > Pad short packets: enabled > Software XOFF Transmission: disabled > Re-transmit on late collision: enabled > 0x03808: TDLEN (Transmit desc length) 0x00001000 > 0x03810: TDH (Transmit desc head) 0x00000000 > 0x03818: TDT (Transmit desc tail) 0x00000000 > 0x03820: TIDV (Transmit delay timer) 0x00000008 > PHY type: unknown > > > -------------------------------------------------------- > > Supported ports: [ TP ] > Supported link modes: 10baseT/Half 10baseT/Full > 100baseT/Half 100baseT/Full > 1000baseT/Full > Supported pause frame use: No > Supports auto-negotiation: Yes > Advertised link modes: 10baseT/Half 10baseT/Full > 100baseT/Half 100baseT/Full > 1000baseT/Full > Advertised pause frame use: No > Advertised auto-negotiation: Yes > Speed: 10Mb/s > Duplex: Full > Port: Twisted Pair > PHYAD: 1 > Transceiver: internal > Auto-negotiation: on > MDI-X: on (auto) > Supports Wake-on: pumbg > Wake-on: g > Current message level: 0x00000007 (7) > drv probe link > Link detected: yes > > > > Running a command like "ethtool -s eth5 advertise 20" or "ethtool -s eth5 > advertise 2c" causes the link to go down and come back up with the right > speed. If I then remove the cable for a few seconds and put it back in the > speed will go back to 10Mb/s. Quicker than that and it seems to stay at > 1000Mb/s. > > > Here is a dmesg with the cable out at boot and then me plugging it in > after: > > > [root@trx-r6 /]# grep -ri 1000e a > [ 12.836934] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k > [ 12.836936] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. > [ 12.841135] e1000e 0000:00:1f.6: Interrupt Throttling Rate (ints/sec) > set to dynamic conservative mode > [ 13.029402] e1000e 0000:00:1f.6 0000:00:1f.6 (uninitialized): registered > PHC clock > [ 13.107349] e1000e 0000:00:1f.6 eth5: (PCI Express:2.5GT/s:Width x1) > 00:13:f2:a0:01:85 > [ 13.107352] e1000e 0000:00:1f.6 eth5: Intel(R) PRO/1000 Network > Connection > [ 13.107408] e1000e 0000:00:1f.6 eth5: MAC: 12, PHY: 12, PBA No: > FFFFFF-0FF > [ 2957.722516] e1000e: eth5 NIC Link is Up 10 Mbps Full Duplex, Flow > Control: Rx/Tx > [ 2957.722521] e1000e 0000:00:1f.6 eth5: 10/100 speed: disabling TSO > > > Cable in the whole time during boot: > > [ 12.273114] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k > [ 12.273116] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. > [ 12.276161] e1000e 0000:00:1f.6: Interrupt Throttling Rate (ints/sec) > set to dynamic conservative mode > [ 12.375477] e1000e 0000:00:1f.6 0000:00:1f.6 (uninitialized): registered > PHC clock > [ 12.458574] e1000e 0000:00:1f.6 eth5: (PCI Express:2.5GT/s:Width x1) > 00:13:f2:a0:01:85 > [ 12.458578] e1000e 0000:00:1f.6 eth5: Intel(R) PRO/1000 Network > Connection > [ 12.458631] e1000e 0000:00:1f.6 eth5: MAC: 12, PHY: 12, PBA No: > FFFFFF-0FF > [ 133.384512] e1000e: eth5 NIC Link is Up 1000 Mbps Full Duplex, Flow > Control: Rx/Tx > > Any ideas? > > Regards, > > -- > Paul > > _______________________________________________ > E1000-devel mailing list > E1000-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/e1000-devel > To learn more about Intel® Ethernet, visit > http://communities.intel.com/community/wired > _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
