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Status Not under consideration
Workspace AIX
Created by Guest
Created on Jul 23, 2018

RELATED IDEAS

Mechanism to allow drivers in IO path to communicate with each other.

We need a mechanism to allow drivers in IO path to communicate with each other.
A possible approach could be to allow third party vendors to set/use any unused bit in b_flags in buf/bufx structure to achieve the same.

Basically, In the IO path AIX overwrite buf/bufx in each layer, but apparently b_flags remains unchanged.
Hence, a third part vendor software(driver) set an unused bit based on certain conditions ( like the buf is aimed at a set of devices); and at much lower layer (adapter) certain action is taken based on whether the bit is set or not.

Basically, we need a mechanism to communicate across several drivers in IO path.
In adapter layer, it's impossible to know from the fields of scsi_buf which LUN the IO is aimed at. That's where the original need of this request started.

Idea priority High
  • Guest
    Reply
    |     Apr 24, 2020

    IBM has evaluated the priority of this enhancement proposal relative to other future product content and determined that this RFE will not be pursued for a future product release

  • Guest
    Reply
    |     Aug 8, 2018

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - Power Systems
    Product - IBM AIX
    Component - Product functionality
    Operating system - IBM AIX
    Source - Client

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - Programming Languages
    Product - Developer for Power Systems
    Component - Other
    Operating system - IBM AIX
    Source - Client

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