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Direct Data Placement (DDP) over Reliable Transports

Direct Data Placement (DDP) over Reliable Transports. 56 th IETF – San Francisco 20 th March 2003 draft-shah-rddp-ddp- 00 Hemal V. Shah, Intel Corporation hemal.shah@intel.com. Changes since last draft (IETF-55).

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Direct Data Placement (DDP) over Reliable Transports

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  1. Direct Data Placement (DDP) over Reliable Transports 56th IETF – San Francisco 20th March 2003 draft-shah-rddp-ddp-00 Hemal V. Shah, Intel Corporation hemal.shah@intel.com 56th IETF- San Francisco, California, USA

  2. Changes since last draft (IETF-55) • draft-shah-iwarp-ddp-01 was renamed to draft-shah-rddp-ddp-00 (official WG draft) • One error description (Error Type=0x1, Error Code=0x02) was corrected to use DDP Stream instead of RDMA Stream • STag not associated with DDP Stream • Text was added in Security section on association of an STag and a DDP Stream 56th IETF- San Francisco, California, USA

  3. Association of an STag & a DDP Stream • Protection Domain (PD) Association • DDP Stream Association 56th IETF- San Francisco, California, USA

  4. Protection Domain (PD) Association • A unique Protection Domain Identifier (PD ID) is used to associate an STag with a set of DDP Streams • Use of STag is only permitted on the DDP Streams that have the same PD ID as the STag • For an incoming Tagged DDP Segment • Use of STag is only permitted if PD IDs match • If PD IDs do not match, then the DDP layer MUST surface a local error to ULP 56th IETF- San Francisco, California, USA

  5. DDP Stream Association • DDP Stream is identified locally by a unique identifier (ID) • STag is associated with a DDP Stream using DDP Stream ID • For an incoming Tagged DDP Segment • Use of STag is only permitted if DDP Stream IDs match • If IDs do not match, DDP MUST surface a local error to ULP 56th IETF- San Francisco, California, USA

  6. Requirements • ULP MUST associate an STag and a DDP Stream • DDP MUST support Protection Domain Association and DDP Stream Association mechanisms 56th IETF- San Francisco, California, USA

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