非常感谢,现在终于明白了
Please note that it is okay for submodules within a module to
communicate with each other without using the queue manager. For example the
PDSP submodules in the PA can comm ...
For loopback PKTDMA modes (i.e. infrastructure cases), the Rx flow is specified in the
Tx descriptor, in the SOURCE_TAG_LO field. The PKTDMA will pass this value to the
streaming I/F as ...