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User-Level Direct Access Transport APIs (uDAPL)

uDAPL Specification Objectives
uDAPL Specification


uDAPL Specification Objectives
  • uDAPL-1.0
      - Lightweight APIs
      - Provides the minimal functionality to export RDMA transport performance capabilities
      - Establishes common terminology for VIA, IB and iWARP APIs
      - Unifies IB, VIA, and iWARP semantic differences
      - Time-to-market is paramount
  • uDAPL-1.1
      - Errata for uDAPL-1.0
  • uDAPL-1.2
      - Partial additions of iWARP and IB extension functionality: SRQ
      - Unification of IB and iWARP semantic
      - Errata for uDAPL-1.1
  • uDAPL-2.0
      - iWARP and IB extensions semantic additions
      - High Availability
      - Errata for uDAPL 1.2
User-Level API Specification
  • uDAPL API Spec Version 2.0 (zip) was posted 1/5/2007
  • DAPL 1.2 official header file (tgz file) was posted 9/15/2004
  • uDAPL API Spec Version 1.2 (zip) was posted 7/15/2004
  • The ratified version of the uDAPL API Spec (v1.1) was posted 4/30/2003.
  • The ratified version of the uDAPL API Spec (v1.0) was posted 6/21/2002.