windriver函数ReadWriteBlock是不是对pci突发读写访问？

请问windriver生成的驱动程序框架里面的函数WDC_DIAG_ReadWriteBlock是不是对pci突发读写访问？谢谢！

WDC_DIAG_ReadWriteBlock函数里面调用函数WDC_ReadAddrBlock，WDC_WriteAddrBlock，这两个函数的参数options可以取3个值：WDC_ADDR_RW_DEFAULT = 0x0,
/* Default: memory resource - direct access; autoincrement on block transfers */
WDC_ADDR_RW_INDIRECT = 0x2,
/* Memory resource only: use WD_Transfer() instead of direct memory access */
WDC_ADDR_RW_NO_AUTOINC = 0x4
/* Hold device address constant while reading/writing a block */
请问哪个是支持突发读写的？谢谢!!

The Performance Measure cannot guarantee burst transactions. Software has no means to force burst transactions. All software can do is enable burst in the hardware and, if conditions are right, the hardware will initiate burst transactions.