CompositionSubgroup < VIP

VIP Web>CompositionSubgroup (2008-07-24, JanickBergeron) (raw view)EditAttach
Leaders: Janick Bergeron, Ambar Sarkar 

&nbsp; 
---+ Definition 

The ability to instantiate, connect and configure testbench components in a testbench. 

Testbench components include: 
   * Primary components (transactors, generators, monitors, scoreboards, functional coverage groups)
   * Composition of&nbsp;primary components and compositions

---+ Baseline 

In the subgroup's first meeting, Janick presented an [[http://www.accellera.org/apps/org/workgroup/vip/download.php/1370/VMM%20Composition.pdf][overview of composition in VMM]]. As we went through it, OVM's composition was also discussed. 

The composition features of the two methodologies are presented [[CompositionBaseline][here]] side by side. 

&nbsp;
---+ Interoperability Objectives&nbsp;

In all cases, the composition interoperability objectives is the instantiation of a VMM/OVM primary component or composition in a OVM environment or VMM (sub)environment. The ability to execute a VMM/OVM testcase on a OVM/VMM environment is *not* an objective.
---++++ Islands
   1 Instantiate a VMM/OVM testbench component in a OVM/VMM environment
   1 Single PASS/FAIL report
---++++ Interconnection
   1 Requirements above plus:
   1 Connecting a VMM vmm_channel to an OVM tlm_fifo
   1 Connecting a VMM vmm_notify to an OVM analysis_port
   1 Connecting a VMM callback to an OVM procedural interface
   1 Connecting an OVM ovm_threaded_component virtual method extension to a VMM procedural interface
---++++ Encapsulation
   1 Requirements above plus:
   1 Requirements in [[http://www.accellera.org/apps/org/workgroup/vip/download.php/1364/Composition%20%20Requirements.doc][Composition Requirements.doc]]
   1 Ability to take an existing testcase and refine it into a corner testcase
   1 Ability to create a testcase by composing the stimulus from two or more other testcases or stimulus sequences/scenarios
   1 Ability to run different tests in sequence, in the same simulation, in arbitrary order
Topic revision: r3 - 2008-07-24 - 19:14:14 - JanickBergeron