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[Bug 1584066] Re: CAPI: CGZIP Wrong CAPI MMIO timeout (256usec desired but 1usec default setting in cxl.ko driver)


This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
xenial' to 'verification-done-xenial'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
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** Tags added: verification-needed-xenial

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  CAPI: CGZIP Wrong CAPI MMIO timeout (256usec desired but 1usec default
  setting in cxl.ko driver)

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

Bug description:
  ---Problem Description---
  MMIO timeout for CAPI driver is too small for CGZIP application. 1usec default should be replaced by 256usec, which prevents cxl driver output in kernel log.
  ---uname output---
  ---Additional Hardware Info---
  Nallatech FPGA card with CGZIP bitstream. 

  Machine Type = Tuleta, but also others

  ---Steps to Reproduce---
   Do extensive stress test using CGZIP card.
  Patch for this fix has been accepted to ppc-linux git tree viz commit https://git.kernel.org/cgit/linux/kernel/git/powerpc/linux.git/commit/?h=next&id=4aec6ec0da9c72c0fa1a5b0d1133707481347bb3

  Required for gzip capi adapter for 14.04.5.
  So would like the fix in 16.04, so that it can roll "naturally" in 14.04.5

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