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  PSL data cache should be flushed before resetting CAPI adapter

Status in linux package in Ubuntu:
  Fix Committed
Status in linux source package in Xenial:
  Fix Committed
Status in linux source package in Yakkety:
  Fix Committed

Bug description:
  ---Problem Description---
  The PSL data cache should be flushed before resetting a CAPI adapter.
  If the PSL data cache holds dirty cache line when it is reset, the host 
trying to access that memory when the link is down may face a Uncorrectable 
Error (UE), forcing a reboot of the system.
  ---uname output---
  Linux freak 4.4.0-38-generic #57-Ubuntu SMP Tue Sep 6 15:40:06 UTC 2016 
ppc64le ppc64le ppc64le GNU/Linux
  ---Additional Hardware Info---
  CAPI adapter needed + AFU image using the PSL cache (e.g. afu_directed 

  Machine Type = Tuleta 
  ---Steps to Reproduce---
   There's some randomness to it, but triggering a memcpy test + card reset in 
a loop can produce it:

  memcpy_afu_ctx -p100 -l1000
  echo 1 > /sys/class/cxl/card0/reset
  Fix is already upstream under commit ID:
  "cxl: Flush PSL cache before resetting the adapter"

  We would like the fix released for both 16.04 and 16.10 please.

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