• Jack Steiner's avatar
    [IA64] Cleanup use of various #defines related to nodes · 24ee0a6d
    Jack Steiner authored
    Some of the SN code & #defines related to compact nodes & IO discovery
    have gotten stale over the years. This patch attempts to clean them up.
    Some of the various SN MAX_xxx #defines were also unclear & misused.
    The primary changes are:
    	- use MAX_NUMNODES. This is the generic linux #define for the number
    	  of nodes that are known to the generic kernel. Arrays & loops
    	  for constructs that are 1:1 with linux-defined nodes should
    	  use the linux #define - not an SN equivalent.
    	- use MAX_COMPACT_NODES for MAX_NUMNODES + NUM_TIOS. This is the
    	  number of nodes in the SSI system. Compact nodes are a hack to
    	  get around the IA64 architectural limit of 256 nodes. Large SGI
    	  systems have more than 256 nodes. When we upgrade to ACPI3.0,
    	  I _hope_ that all nodes will be real nodes that are known to
    	  the generic kernel. That will allow us to delete the notion
    	  of "compact nodes".
    	- add MAX_NUMALINK_NODES for the total number of nodes that
    	  are in the numalink domain - all partitions.
    	- simplified (understandable) scan_for_ionodes()
    	- small amount of cleanup related to cnodes
    Signed-off-by: default avatarJack Steiner <steiner@sgi.com>
    Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
tiocx.c 12.8 KB