e1000e: PCIm function state support

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Due to commit: 5d8682588605 ("[misc] mei: me: allow runtime
pm for platform with D0i3")
When disconnecting the cable and reconnecting it the NIC
enters DMoff state. This caused wrong link indication
and duplex mismatch. This bug is described in:
https://bugzilla.redhat.com/show_bug.cgi?id=1689436

Checking PCIm function state and performing PHY reset after a
timeout in watchdog task solves this issue.

Signed-off-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

...

This commit is contained in:

Vitaly Lifshits 2019-06-25 17:39:11 +03:00 • committed by Jeff Kirsher

parent 59653e6497

commit def4ec6dce

2 changed files with 20 additions and 1 deletions

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3

drivers/net/ethernet/intel/e1000e/defines.h

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18

drivers/net/ethernet/intel/e1000e/netdev.c

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