HCC_CANPARK
#define HCC_CANPARK(p) ((p)&(1 << 2)) /* true: can park on async qh */
#define HCC_CANPARK(p) ((p)&(1 << 2)) /* true: can park on async qh */
#define HCC_CANPARK(p) ((p)&(1 << 2)) /* true: can park on async qh */