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[Bug 1583737] Re: dual CAPI does not work on OpenPower/Garrison

 

*** This bug is a duplicate of bug 1584066 ***
    https://bugs.launchpad.net/bugs/1584066

Both of these patches were required scaffolding for 'cxl: Increase
timeout for detection of AFU mmio hang' in LP#1584066 so I'll just call
this bug a duplicate.

** This bug has been marked a duplicate of bug 1584066
   CAPI: CGZIP Wrong CAPI MMIO timeout (256usec desired but 1usec default setting in cxl.ko driver)

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https://bugs.launchpad.net/bugs/1583737

Title:
  dual CAPI does not work on OpenPower/Garrison

Status in linux package in Ubuntu:
  Triaged

Bug description:
  ---Problem Description---
  dual CAPI does not work on OpenPower/Garrison
   
  ---uname output---
  Linux garri 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:30:22 UTC ppc64le ppc64le ppc64le GNU/Linux
   
  ---Additional Hardware Info---
  two CAPI cards attached to the same CPU 
   
  Machine Type = Garrison 

  ---Steps to Reproduce---
   modprobe cxl
   
  The following two patches fix the cxl driver for the Garrison topology where two CAPI cards can be attached to the same CPU.
  .
  https://git.kernel.org/cgit/linux/kernel/git/powerpc/linux.git/commit/?id=86c9ffcc1ed17497a5df473232a7e654fa8cfa1f
  ("powerpc: Define PVR value for POWER8NVL processor")
  .
  https://git.kernel.org/cgit/linux/kernel/git/powerpc/linux.git/commit/?id=aa14138a51ca42eada706d4b9635bd32d1e09ced
  ("cxl: Configure the PSL for two CAPI ports on POWER8NVL")
  .

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References