osf1 man page for sys_attrs_lfa

sys_attrs_lfa(5)						File Formats Manual						  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 Compaq 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.

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

	      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 Compaq Computer Corporation support personnel or
	      by patch kit documentation.

	      Default value: 1 (enabled)

	      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

	      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

	      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
	      Compaq  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 Compaq Computer Corporation support personnel	or
	      by patch kit documentation.

	      Default value: 0 (disabled)

SEE ALSO
       sys_attrs(5)

       Asynchronous Transfer Mode

																  sys_attrs_lfa(5)