[ofa-general] [RFC PATCH 4/4] rdma/cma: implementRDMA_ALIGN_WITH_NETDEVICE ha mode

[Steve Wise]

Steve Wise wrote:
> Sean Hefty wrote:
>>> 1) Merely enable the application to know when there has been
>>>   a significant change in IP routing. If the current services are
>>>   inadequate for this purpose then extend those rather than
>>>   do an automatic connection teardown/rebuild.
>>>     
>>
>> This is my current preferred solution.
>>
>>   
> I agree.
>> I don't have an issue with the rdma_cm issuing some sort of notification event
>> when an IP address mapping changes.  I would use an event name that indicated
>> this, rather than 'disconnect'.
>>
>> If this is implemented, I'd like to minimize the overhead per rdma_cm_id
>> required to report this event.
>>
>>   
>
> Maybe instead of making this a cm_id event, we should add a concept of 
> rdma async events that aren't necessarily affiliated with any 
> particular cm_id?  IE a new channel for these types.  Then you can 
> post it once when a route changes that affects rdma devices, for 
> example...
>
As opposed to posting the event to every cm_id affected...