[ixgbe] Intel 82599 network drops connections with "Received unrecoverable ECC Err, please reboot' message

Issue

• NIC stops working with the following error seen in the /var/log/messages file and/or dmesg output:

Nov 28 20:29:03 localhost kernel: ixgbe 0000:05:00.0: eth12: Received unrecoverable ECC Err, please reboot

• It may or may not also include the a Tx Unit Hang error:

Nov 28 20:29:08 localhost kernel: ixgbe 0000:05:00.0: eth12: Detected Tx Unit Hang
Nov 28 20:29:08 localhost kernel:  Tx Queue             <16>
Nov 28 20:29:08 localhost kernel:  TDH, TDT             <d7c>, <d94>
Nov 28 20:29:08 localhost kernel:  next_to_use          <d94>
Nov 28 20:29:08 localhost kernel:  next_to_clean        <d7c>
Nov 28 20:29:08 localhost kernel: tx_buffer_info[next_to_clean]
Nov 28 20:29:08 localhost kernel:  time_stamp           <111922672>
Nov 28 20:29:08 localhost kernel:  jiffies              <1119237da>