[Etherlab-users] IGC driver with kernel 6.4 issue

[Celil Can Anık]

Hi all,

I was running Ethercat master with Gavin’s patchset older hardware with R8169 driver with Preempt RT. But new hardware is using I225 (Ethernet controller: Intel Corporation Ethernet Controller I225-LM (rev 03)), igc driver, and newer kernel with Ubuntu 22.04. Unfortunately, I am unable to run with igc driver with Kernel 6.4. But, generic driver works. I tried to compile my RT kernel and Ethercat master a few times with different configurations, but no luck. I slightly suspect there might be an issue with this new driver patch. Any help you can give would be appreciated.

Here is my dmesg log. (Driver looks like loaded ?)

[ 8167.603308] EtherCAT: Master module cleaned up.
[ 8169.698759] EtherCAT: Master driver 1.5.2 unknown
[ 8169.699063] EtherCAT: 1 master waiting for devices.
[ 8169.743069] Intel(R) 2.5G Ethernet Linux Driver (EtherCAT enabled)

When I select igc driver from /etc/sysconfig/ethercat, master is not works. But with generic driver it finds my Ethernet chip. No slaves connected.

  *   igc
# /etc/init.d/ethercat status
Checking for EtherCAT master 1.5.2
Master0  dead
root at lynca:/usr/local/src/ethercat-stable-1.5# ethercat master
Master0
  Phase: Waiting for device(s)...
  Active: no
  Slaves: 0
  Ethernet devices:
    Main: ff:ff:ff:ff:ff:ff (waiting...)
      Link: DOWN
      Tx frames:   0
      Tx bytes:    0
      Rx frames:   0
      Rx bytes:    0
      Tx errors:   0
      Tx frame rate [1/s]:      0      0      0
      Tx rate [KByte/s]:      0.0    0.0    0.0
      Rx frame rate [1/s]:      0      0      0
      Rx rate [KByte/s]:      0.0    0.0    0.0
    Common:
      Tx frames:   0
      Tx bytes:    0
      Rx frames:   0
      Rx bytes:    0
      Lost frames: 0
      Tx frame rate [1/s]:      0      0      0
      Tx rate [KByte/s]:      0.0    0.0    0.0
      Rx frame rate [1/s]:      0      0      0
      Rx rate [KByte/s]:      0.0    0.0    0.0
      Loss rate [1/s]:          0      0      0
      Frame loss [%]:         0.0    0.0    0.0
  Distributed clocks:
    Reference clock:   None
    DC reference time: 0
    Application time:  0
                       2000-01-01 00:00:00.000000000


  *   GENERIC
ethercat master
Master0
  Phase: Idle
  Active: no
  Slaves: 0
  Ethernet devices:
    Main: 86:c0:b4:27:56:65 (attached)
      Link: DOWN
      Tx frames:   0
      Tx bytes:    0
      Rx frames:   0
      Rx bytes:    0
      Tx errors:   0
      Tx frame rate [1/s]:      0      0      0
      Tx rate [KByte/s]:      0.0    0.0    0.0
      Rx frame rate [1/s]:      0      0      0
      Rx rate [KByte/s]:      0.0    0.0    0.0
    Common:
      Tx frames:   0
      Tx bytes:    0
      Rx frames:   0
      Rx bytes:    0
      Lost frames: 0
      Tx frame rate [1/s]:      0      0      0
      Tx rate [KByte/s]:      0.0    0.0    0.0
      Rx frame rate [1/s]:      0      0      0
      Rx rate [KByte/s]:      0.0    0.0    0.0
      Loss rate [1/s]:          0      0      0
      Frame loss [%]:         0.0    0.0    0.0
  Distributed clocks:
    Reference clock:   None
    DC reference time: 0
    Application time:  0
                       2000-01-01 00:00:00.000000000

Also you can check “lsmod” data for both generic and igc here: https://pastes.io/jordbvtiuq

Best regards,
Celil

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