** Changed in: linux (Ubuntu)
     Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) => 
Canonical Kernel Team (canonical-kernel-team)

** Changed in: linux (Ubuntu)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1762448

Title:
  Enable Tunneled Operations on POWER9

Status in The Ubuntu-power-systems project:
  Triaged
Status in linux package in Ubuntu:
  New

Bug description:
  == Comment: #0 - Philippe Bergheaud  - 2018-04-09 09:15:22 ==
  ---Problem Description---
  PCI and CAPI Tunneled operations for POWER9 do not operate
    
  ---uname output---
  Linux zzfp088p01 4.16.0-rc7-00062-g0b41260-dirty #5 SMP Wed Apr 4 14:48:53 
CEST 2018 ppc64le ppc64le ppc64le GNU/Linux
   
  ---Additional Hardware Info---
  POWER9 + CAPI card with MemCpy 2.0 Directed Mode AFU for PSL9 

   
  Machine Type = power9 ppc64le 
   
  ---Debugger---
  A debugger is not configured
   
  ---Steps to Reproduce---
   AFU sends as_notify message ; host thread does not wake up
   
  Stack trace output:
   no
   
  Oops output:
   no
   
  System Dump Info:
    The system is not configured to capture a system dump.

  == Comment: #1 - Philippe Bergheaud  - 2018-04-09 09:20:35 ==
  The following mainline linux patches solve the issue:

  https://github.com/torvalds/linux/commit/d6a90bb83b50 powerpc/powernv:
  Enable tunneled operations

  https://github.com/torvalds/linux/commit/9dbcbfa1fe0c cxl: read PHB
  indications from the device tree

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