use symbolic constants for 'magic' numbers in pcieportal
use symbolic constants for 'magic' numbers in pcieportal

chenm001/connectal,8l/connectal,chenm001/connectal,cambridgehackers/connectal,cambridgehackers/connectal,csail-csg/connectal,hanw/connectal,8l/connectal,chenm001/connectal,8l/connectal,hanw/connectal,csail-csg/connectal,8l/connectal,hanw/connectal,csail-csg/connectal,cambridgehackers/connectal,csail-csg/connectal,hanw/connectal,hanw/connectal,cambridgehackers/connectal,cambridgehackers/connectal,chenm001/connectal,csail-csg/connectal,8l/connectal,chenm001/connectal