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sys_attrs_lfa(5)


NAME

  sys_attrs_lfa - lfa subsystem attributes


DESCRIPTION

  This reference page lists and describes attributes for the lfa (lfa) kernel
  subsystem. This subsystem is used by the HE622 and HE155 Asynchronous
  Transfer Mode (ATM) adapters.

  Refer to the sys_attrs(5) reference page for an introduction to the topic
  of kernel subsystem attributes.

  driver_version
      The version number of the lfa driver. This is a read-only attribute,
      and cannot be changed.

  minimal_isr
      A value that enables (1) or disables (0) the awakening of a separate
      thread to handle real interrupt service work by the interrupt service
      routine.

      Do not modify the default setting for this attribute unless instructed
      to do so by Hewlett-Packard Company support personnel or by patch kit
      documentation.

      Default value: 1 (enabled)

  num_mac_addresses
      The number of Media Access Control (MAC) addresses to generate for the
      lfa adapter. The adapter has only one MAC address, but the driver can
      generate unique locally administered addresses up to the number
      specified.

      Default value: 16 (addresses)

      Minimum value: 1

      Maximum value: 64

  num_vpi_bits
      The number of bits to use for the Virtual Path Identifier (VPI) field.
      A total of 12 bits can be divided between the VPI and VCI (Virtual
      Channel Identifier) fields.

      The mapping of the valid num_vpi_bits values to the different VPI and
      VCI ranges are as follows:

      _____________________________
      Value   VPI Range	  VCI Range
      _____________________________
      0	      0		  0-4095
      1	      0-1	  0-2047
      2	      0-3	  0-1023
      3	      0-7	  0-511
      4	      0-15	  0-255
      5	      0-31	  0-127
      6	      0-63	  0-63
      7	      0-127	  0-31
      8	      0-255	  0-15
      _____________________________

      Default value: 0 (bits), or 12 bits for the VCI

      Minimum value: 0

      Maximum Value: 8

  use_64bit
      A value that enables (1) or disables (0) the use of 64-bit data
      transfers by the adapter.	 When installed in a 64-bit PCI slot, the
      HE622 and HE155 adapters can perform 64-bit data transfers. To force
      the driver to use 32-bit data transfers, set this attribute to 0.

      Do not modify the default setting for this attribute unless instructed
      to do so by Hewlett-Packard Company support personnel or by patch kit
      documentation.

      Default value: 0 (disabled)


SEE ALSO

  sys_attrs(5)

  Asynchronous Transfer Mode

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