HFI1_MMAP_TOKEN_GET
return (HFI1_MMAP_TOKEN_GET(MAGIC, token) == HFI1_MMAP_MAGIC);
ctxt = HFI1_MMAP_TOKEN_GET(CTXT, token);
subctxt = HFI1_MMAP_TOKEN_GET(SUBCTXT, token);
type = HFI1_MMAP_TOKEN_GET(TYPE, token);