[Qemu-devel] [Bug 1384892] Re: RTL8168 NIC VFIO not working anymore since QEMU 2.1

[Thomas Huth]

The patch that has been mentioned in the last comment has been included here:
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=31e6a7b17b35711eb44f0e
... and has been released with QEMU v2.8 already, so marking this as "fix 
released" now.

** Changed in: qemu
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1384892

Title:
  RTL8168 NIC VFIO not working anymore since QEMU 2.1

Status in QEMU:
  Fix Released

Bug description:
  After upgrading QEMU from 2.0 to 2.1 (and libiscsi from 1.7.0 to 1.12 as a 
dependency) my two RTL8168 NICs stopped working.
  The NICs do not respond to any command and even the LEDs on the network 
connection turn off, a few seconds after the VM started.
  To get them back running I had to downgrade to 2.0 and restart the system.
  Unfortunately, I have no clue what to do or how to debug this problem since 
there are no specific errors logged.
  I tried two different VMs: Debian Wheezy and IPFire (see attachment for 
further details).
  The QEMU 2.1 changelog states "Support for RTL8168 NICs." so there were some 
major changes done, I guess.

  On the IPFire guest the kernel log shows many of these lines:
  r8169 0000:00:07.0 green1: rtl_eriar_cond == 1 (loop: 100, delay: 100)
  r8169 0000:00:07.0 green1: rtl_phy_reset_cond == 1 (loop: 100, delay: 1)

  On the Debian guest there is only:
  r8169 0000:00:07.0: firmware: agent loaded rtl_nic/rtl8168e-3.fw into memory
  r8169 0000:00:07.0: lan0: link down
  ADDRCONF(NETDEV_UP): lan0: link is not ready

  The commandline for IPFire can be seen in the attachment. It is the same for 
Debian.
  There are also the complete kernel logs for the working (2.0) and non-working 
(2.1) cases.

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