[Gems-users] MessageBuffer

[lya755@xxxxxxxxxxxxxxxxxxxx]

Dear list,

I have a question regarding the use of MessageBuffer. I am using 
MSI_MOSI_CMP_directory protocol. I want to create a MessageBuffer that 
connects an in_port and an out_port, both belong to the L2Cache_Controller. 
Basically the L2 controller sends message to the out_port and the in_port just 
process each message in FIFO order. No data needs to go in or out of the L2 
cache. 

Right now I defined the following in my MSI_MOSI_CMP_directory-L2cache.sm file:

MessageBuffer LocalL2Request, ordered="true";

out_port(LocalL2Request_out, RequestMsg, LocalL2Request);

in_port(LocalL2Request_in, RequestMsg, LocalL2Request) {
  if(LocalL2Request_in.isReady()) {
    peek(LocalL2Request_in, RequestMsg) {
      // Do something;
    }
  }     
}

However it seems that the two ports are not "connected" even if they share the 
same MessageBuffer. The simulator goes to an infinite loop when I send 
requests to the out_port, which implies that those requests were never 
processed by the in_port.

Please help!!

Thanks a lot!
Lei


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