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8 Host Utilities
-aPX00020,PX00015,PX00015,PX01000
Up to a maximum of 4 addresses can be specified in this list. In the example above, board_id = 0 would be
the board with serial number PX00020 irrespective of where in the chassis this board was located.
Notes:
It is not necessary for all boards listed in this option to physically exist in a system. In board serial
number address mode, if a board does not have a valid entry in the address list, that board will generally
be inaccessible to the system except for messages that allow the user to specify a board's physical
address (see below).
Under certain circumstances (for example to determine the serial number of a new card added to the
system which, as yet, does not have a valid mapping in the system.txt file), the user may require access
to all the boards in a system irrespective of the address mode or any address list specified in the
system.txt file.
To retrieve a board's serial number under these conditions, the SSD_MSG_BOARD_INFO message allows
each board to be addressed either via its logical address (as determined by the address list mapping) or
via its physical address (as determined via its discovery order in the platforms PCI bus enumeration). To
access the board under its physical address, the top bit of the SSD_MSG_BOARD_INFO ID field is set.