src/mem/xbar.cc

83         // the master port index translates directly to the vector position
88         // the slave port index translates directly to the vector position
136     port(_port), xbar(_xbar), _name(_name), state(IDLE),
166     // retrying port (or in the case of the snoop ports the snoop
167     // response port that mirrors the actual slave port) as we leave
172     // destination port is already engaged in a transaction waiting
175         // the port should not be waiting already
179         // put the port at the end of the retry list waiting for the
210     // this port
213     // if the source port is the current retrying one or not, we have
263     // set the retrying port to the front of the retry list and pop it
268     // tell the port to retry, which in some cases ends up calling the
276         // update the state to busy and reset the retrying port, we
290     // something to this port
293     // add the port where the failed packet originated to the front of
295     // on the port immediately if the crossbar layer is idle
301     // if the layer is idle, retry this port straight away, if we
302     // are busy, then simply let the port wait for its turn
332                 "will use default port\n", addr_range.to_string());
336     // we should use the range for the default port and it did not
337     // match, or the default port is not set
342 /** Function called by the port when the crossbar is receiving a range change.*/
346     DPRINTF(AddrRanges, "Received range change from slave port %s\n",
349     // remember that we got a range from this master port and thus the
366     // note that we could get the range from the default port at any
372         // default port since the port might not have a valid range
554     // vectors, indexed by slave port id and master port id, thus the