Documentation/ABI/testing/sysfs-driver-genwqe

   1 What:           /sys/class/genwqe/genwqe<n>_card/version
   2 Date:           Oct 2013
   3 Contact:        haver@linux.vnet.ibm.com
   4 Description:    Unique bitstream identification e.g.
   5                 '0000000330336283.00000000475a4950'.
   6
   7 What:           /sys/class/genwqe/genwqe<n>_card/appid
   8 Date:           Oct 2013
   9 Contact:        haver@linux.vnet.ibm.com
  10 Description:    Identifies the currently active card application e.g. 'GZIP'
  11                 for compression/decompression.
  12
  13 What:           /sys/class/genwqe/genwqe<n>_card/type
  14 Date:           Oct 2013
  15 Contact:        haver@linux.vnet.ibm.com
  16 Description:    Type of the card e.g. 'GenWQE5-A7'.
  17
  18 What:           /sys/class/genwqe/genwqe<n>_card/curr_bitstream
  19 Date:           Oct 2013
  20 Contact:        haver@linux.vnet.ibm.com
  21 Description:    Currently active bitstream. 1 is default, 0 is backup.
  22
  23 What:           /sys/class/genwqe/genwqe<n>_card/next_bitstream
  24 Date:           Oct 2013
  25 Contact:        haver@linux.vnet.ibm.com
  26 Description:    Interface to set the next bitstream to be used.
  27
  28 What:           /sys/class/genwqe/genwqe<n>_card/reload_bitstream
  29 Date:           May 2014
  30 Contact:        klebers@linux.vnet.ibm.com
  31 Description:    Interface to trigger a PCIe card reset to reload the bitstream.
  32
  33                 ::
  34
  35                   sudo sh -c 'echo 1 > \
  36                     /sys/class/genwqe/genwqe0_card/reload_bitstream'
  37
  38                 If successfully, the card will come back with the bitstream set
  39                 on 'next_bitstream'.
  40
  41 What:           /sys/class/genwqe/genwqe<n>_card/tempsens
  42 Date:           Oct 2013
  43 Contact:        haver@linux.vnet.ibm.com
  44 Description:    Interface to read the cards temperature sense register.
  45
  46 What:           /sys/class/genwqe/genwqe<n>_card/freerunning_timer
  47 Date:           Oct 2013
  48 Contact:        haver@linux.vnet.ibm.com
  49 Description:    Interface to read the cards free running timer.
  50                 Used for performance and utilization measurements.
  51
  52 What:           /sys/class/genwqe/genwqe<n>_card/queue_working_time
  53 Date:           Oct 2013
  54 Contact:        haver@linux.vnet.ibm.com
  55 Description:    Interface to read queue working time.
  56                 Used for performance and utilization measurements.
  57
  58 What:           /sys/class/genwqe/genwqe<n>_card/state
  59 Date:           Oct 2013
  60 Contact:        haver@linux.vnet.ibm.com
  61 Description:    State of the card: "unused", "used", "error".
  62
  63 What:           /sys/class/genwqe/genwqe<n>_card/base_clock
  64 Date:           Oct 2013
  65 Contact:        haver@linux.vnet.ibm.com
  66 Description:    Base clock frequency of the card.
  67
  68 What:           /sys/class/genwqe/genwqe<n>_card/device/sriov_numvfs
  69 Date:           Oct 2013
  70 Contact:        haver@linux.vnet.ibm.com
  71 Description:    Enable VFs (1..15)::
  72
  73                   sudo sh -c 'echo 15 > \
  74                     /sys/bus/pci/devices/0000\:1b\:00.0/sriov_numvfs'
  75
  76                 Disable VFs::
  77
  78                   Write a 0 into the same sysfs entry.