* VAX Massbus adapter registers
int mba_erb
[8][32]; /* external register base */
#define PHYSMBA0 ((struct mba_regs *)0x20010000)
#define PHYSMBA1 ((struct mba_regs *)0x20012000)
#define mbadev(mba,unit) ((struct device *)mba->mba_erb[unit])
struct mba_regs
*mi_loc
; /* virtual mba */
struct mba_regs
*mi_phys
; /* physical mba */
struct pte
*mi_map
; /* page table base for nexus */
#define MBA0 ((struct mba_regs *)0x80064000)
#define MBA1 ((struct mba_regs *)0x80066000)
struct mba_info mbainfo
[];