mvpcie_intr_handle
struct mvpcie_intr_handle *ih;
ih = malloc(sizeof(struct mvpcie_intr_handle), M_DEVBUF, M_WAITOK);
struct mvpcie_intr_handle *ih = (struct mvpcie_intr_handle *)ihp;
free(ih, M_DEVBUF, sizeof(struct mvpcie_intr_handle));