[openib-general] RDMA Generic Connection Management

Sean Hefty mshefty at ichips.intel.com
Thu Sep 1 09:10:14 PDT 2005


Gleb Natapov wrote:
> On Wed, Aug 31, 2005 at 11:11:40AM -0700, Sean Hefty wrote:
> 
>>I don't have a good solution yet for calls like ib_cma_get_device().  Yet 
>>another possibility is to have it return a device pointer in a callback.  
>>Then it can synchronize with device removal internally.
>>
> 
> What if ib_cma_get_device() will return client data for the device and
> we let the ULP to figure out whether the data is still valid in the way 
> most suitable for the ULP?

While I think that returning the client data would be useful, I don't think that 
this really helps the ULP any.  It seems likely that a client would free their 
client data upon removal of the associated device.  So they can't trust this 
pointer any more than the device pointer.

- Sean



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