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IV56010: ACCESS TO I2C BUS ON THE CARD WILL FAIL APPLIES TO AIX 6100-09

A fix is available

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APAR status

  • Closed as program error.

Error description

  • As the hardware implementation doesn't have a semaphore
    mechanism, concurrent access to the I2C bus may result in
    adapter reset failure, which inturn cause a FW Dump.
    

Local fix

Problem summary

  • As the hardware implementation doesn't have a semaphore
    mechanism, concurrent access to the I2C bus may result in
    adapter reset failure, which inturn cause a FW Dump.
    

Problem conclusion

  • Qlogic introduced a shared RISC-to-RISC semaphore
    to indicate shared I2C accesses are occuring. Before
    resetting the ISP the driver must acquire the shared
    semaphore, within the stipulated time mentioned by the
    Qlogic documentaiton.  This will avoid the access contention
    for I2C Bus.
    

Temporary fix

Comments

  • 6100-07 - use AIX APAR IV58267
    6100-08 - use AIX APAR IV57874
    6100-09 - use AIX APAR IV56010
    6100-09 - use AIX APAR IV56010
    6100-09 - use AIX APAR IV56010
    7100-01 - use AIX APAR IV57569
    7100-02 - use AIX APAR IV57020
    7100-03 - use AIX APAR IV56014
    7100-04 - use AIX APAR IV56077
    

APAR Information

  • APAR number

    IV56010

  • Reported component name

    AIX 610 STD EDI

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-02-27

  • Closed date

    2014-02-27

  • Last modified date

    2016-05-10

Fix information

  • Fixed component name

    AIX 610 STD EDI

  • Fixed component ID

    5765G6200

Applicable component levels

  • R610 PSY U861311

       UP14/10/28 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Standard Edition

Software version: 610

Operating system(s): AIX

Reference #: IV56010

Modified date: 10 May 2016