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IV64280: 10G ROCE ADAPTER IN SEA DROPPED LARGESEND PACKETS APPLIES TO AIX 7100-02

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Using a RoCE adapter (10GbE PCIe2 CX2 Network Adapter
    (b315506714106104))as real adapter in a SEA with the
    largesend option enabled will lead to poor throughput,
    because the adapter will drop all largesend packets.
    

Local fix

  • disable largesend on the SEA adapter
    

Problem summary

  • Using a RoCE adapter (10GbE PCIe2 CX2 Network Adapter
    (b315506714106104))as real adapter in a SEA with the
    largesend option enabled will lead to poor throughput,
    because the adapter will drop all largesend packets.
    

Problem conclusion

  • 10G RoCE adapter device driver is fixed to enable device bits
    needed for LSO operations.
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV61928
    6100-09 - use AIX APAR IV62643
    7100-02 - use AIX APAR IV64280
    7100-03 - use AIX APAR IV62742
    

APAR Information

  • APAR number

    IV64280

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-08-29

  • Closed date

    2014-08-29

  • Last modified date

    2016-05-11

  • APAR is sysrouted FROM one or more of the following:

    IV61928

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U865326

       UP15/01/19 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV64280

Modified date: 11 May 2016