NEX-8020 illumos nvme changes
Reviewed by: Dan Fields <dan.fields@nexenta.com>
Reviewed by: Gordon Ross <gordon.ross@nexenta.com>
NEX-5192 Samsung SSD SM951-NVMe shows checksum errors
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com>
NEX-5791 support NVMe volatile write cache
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com>
NEX-4978 enable nvme driver for all NVMe devices
Reviewed by: Josef 'Jeff' Sipek <josef.sipek@nexenta.com>
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
NEX-2182 need driver for Intel NVM Express (nvme) (preview)
Reviewed by: Dan Fields <dan.fields@nexenta.com>

          --- old/usr/src/uts/common/io/nvme/nvme.conf
          +++ new/usr/src/uts/common/io/nvme/nvme.conf

   1    1  # This file and its contents are supplied under the terms of the
   2    2  # Common Development and Distribution License ("CDDL"), version 1.0.
   3    3  # You may only use this file in accordance with the terms of version
   4    4  # 1.0 of the CDDL.
   5    5  #
   6    6  # A full copy of the text of the CDDL should have accompanied this
   7    7  # source.  A copy of the CDDL is also available via the Internet at

   8    8  # http://www.illumos.org/license/CDDL.
   9    9  #
  10   10  #
  11   11  # Copyright 2016 Nexenta Systems, Inc. All rights reserved.
  12   12  #
  13   13  
  14   14  #
  15   15  # The driver was tested only against devices supporting v1.0 of the
  16   16  # NVMe specification. Uncomment this to be able to use devices conforming
  17   17  # to newer specifications.
  18      -#strict-version=0;
       18 +strict-version=0;
  19   19  
  20   20  #
  21   21  # The driver does currently not support any vendor specific extension to the
  22   22  # specification. By default it will fault the device if it receives a vendor-
  23   23  # specific command status. Uncomment this to disable this behaviour.
  24   24  #ignore-unknown-vendor-status=1;
  25   25  
  26   26  #
  27   27  # The maximum length of the admin queue can be overridden here (16-4096).
  28   28  #admin-queue-len=256;

  29   29  
  30   30  #
  31   31  # The maximum length of the individual I/O queues can be overriden here
  32   32  # (16-65536).
  33   33  #io-queue-len=1024;
  34   34  
  35   35  #
  36   36  # The maximum number of outstanding asynchronous event requests can
  37   37  # overridden here.
  38   38  #async-event-limit=10;
  39   39  
  40   40  #
  41   41  # Enable (1) or Disable (0) the volatile write cache, if present.
  42   42  #
  43   43  #volatile-write-cache-enable=1;
  44   44  
  45   45  #
  46   46  # The minimum physical block size to be reported to blkdev. This value must
  47   47  # be a power of 2 greater than or equal to 512.
  48   48  #
  49   49  #min-phys-block-size=512;

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