Symbol: __RD32
usr/src/uts/common/xen/public/io/ring.h
54
(__RD32(((_sz) - offsetof(struct _s##_sring, ring)) / \
usr/src/uts/common/xen/public/io/ring.h
60
(__RD32(((_sz) - (long)(_s)->ring + (long)(_s)) / sizeof((_s)->ring[0])))