K 10
svn:author
V 9
jimharris
K 8
svn:date
V 27
2016-02-17T15:36:02.430218Z
K 7
svn:log
V 701
MFC r295532:

  nvme: avoid duplicate SET_NUM_QUEUES commands

  nvme(4) issues a SET_NUM_QUEUES command during device
  initialization to ensure enough I/O queues exists for each
  of the MSI-X vectors we have allocated.  The SET_NUM_QUEUES
  command is then issued again during nvme_ctrlr_start(), to
  ensure that is properly set after any controller reset.

  At least one NVMe drive exists which fails this second
  SET_NUM_QUEUES command during device initialization.  So
  change nvme_ctrlr_start() to only issue its SET_NUM_QUEUES
  command when it is coming out of a reset - avoiding the
  duplicate SET_NUM_QUEUES during device initialization.

Approved by:	re (glebius)
Sponsored by:	Intel

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