1. 21 Mar, 2014 12 commits
    • Pietro Fezzardi's avatar
      arch-sim: new standard names for the ifaces · 7cd3719d
      Pietro Fezzardi authored
      This makes the diagnostics easier to understand, printing MASTER and SLAVE
      for every message
    • Pietro Fezzardi's avatar
      arch-sim: network operations and main loop · dcddecbc
      Pietro Fezzardi authored
      New struct sim_pending_pkt is introduced to hold information on pakets still in
      fly. An array of such structures is stored in ppg->arch_data. This array is
      written by every send. The insertion is designed to sort automatically the
      packets so that the first element of the array after an insertion is always
      the first packet that will be received. Function sim_fast_forward_ns is changed
      to update also the reception times into this array, so that when you fast
      forward, also the pending packets are fast_forwarded.
      The main loop works in this way:
      	- if there are packets to be received check when
      	- if the first packet to be received is coming before the state machine
      	  timestamps expire, then fast forward till it's time to receive it.
      	  Then receive it and call the state machine of the receiver
      	- if there are no packet pending or the first pending packet is coming
      	  after a timeout, then fast forward till the timeout expires and
      	  run all the state machines
    • Pietro Fezzardi's avatar
      arch-sim: config options for net delay · d53137e5
      Pietro Fezzardi authored
    • Pietro Fezzardi's avatar
      time-sim: added sim_fast_forward_ns · 02bf7e83
      Pietro Fezzardi authored
      It will be used to jump ahead in time when no machine is executing.
    • Pietro Fezzardi's avatar
      arch-sim: added struct pp_sim_net_delay · 8ba0d746
      Pietro Fezzardi authored
      This structure represents all the delays on the outgoing link of
      the pp_instance. It will be used by the network operations
    • Pietro Fezzardi's avatar
      arch-sim: added per-arch config options · 17a47301
      Pietro Fezzardi authored
      startup is changed, because we need to set the initial time for the
      master before we set the initial offset from master fo the slave.
      In this way the diagnostics cannot be turned on to print out the
      config for the master. This is not a problem, because the master
      it's not meant to be configurable
    • Pietro Fezzardi's avatar
      arch-sim: new inline functions to select instances · 54eb55be
      Pietro Fezzardi authored
      pp_sim_get_master(ppg) always returns a pointer to master pp_instance.
      pp_sim_get_slave(ppg) always returns a pointer to slave pp_instance.
      pp_sim_is_master(ppi) and pp_sim_is_slave(ppi) are test for obvious
      conditions. these last two can be used only if ppi->glbs != NULL,
      so only if a ppi has been fully initialized.
    • Pietro Fezzardi's avatar
    • Pietro Fezzardi's avatar
      arch-sim: fields added to struct sim_ppi_arch_data · 16b4b4e3
      Pietro Fezzardi authored
      These are namely Data Sets, runtime options, servo and TimeProperties.
      We need them in every instance because we have two ppi (master and slave)
      acting like two different machines, so they need different copies of
      these variables. We just put the per-instance stuff in the arch_data.
      Then we'll change the pointers in the ppg directly in the net operations,
      according to our needs.
    • Pietro Fezzardi's avatar
      time-sim: added time operations · aea3aa29
      Pietro Fezzardi authored
      They're designed to be used for both the instances, master and slave.
      This is possible because the new data structure pp_sim_time_instance
      holding all the information about the time of a single instance is
      placed inside the ppi arch_data
    • Pietro Fezzardi's avatar
      arch-sim: new prototype for global arch_data · 44e73697
      Pietro Fezzardi authored
      For now it's the same as arch-unix but it will change
      when we will add more configuration parameters for the
      simulator. So it's better to change its name, from the
    • Pietro Fezzardi's avatar
      arch-sim: initial commit with directory tree · 8d898988
      Pietro Fezzardi authored
      Kconfig is updated with new arch.
      It compiles but it's actually doing nothing