[dat-discussions] RE: [openib-general] Re: iWARP emulationprotocol

[Richard Frank]

It's probably fine to go ahead and reduce the IPC private data - I think we 
(Oracle) can work around this.


----- Original Message ----- 
From: "Richard Frank" <richard.frank at oracle.com>
To: "James Lentini" <jlentini at netapp.com>; "Roland Dreier" 
<rolandd at cisco.com>
Cc: <swg at infinibandta.org>; <openib-general at openib.org>; "Davis, Arlin R" 
<arlin.r.davis at intel.com>
Sent: Wednesday, October 19, 2005 7:12 PM
Subject: Re: [dat-discussions] RE: [openib-general] Re: iWARP 
emulationprotocol


> Oracle's uDAPL ipc implementation uses 64 bytes of private connection 
> data - currently - some of this is the result of having 64 bytes to use at 
> the start - so we designed around this. We can probably reduce this 
> somewhat. And of course if we want to rewrite our connection handling for 
> uDAPL (add our own wire protocol) we can probably skip using the uDAPL 
> connection data all together.
>
> For RDS we use our own connection data sent via datagrams which has always 
> been part of the Oracle UDP ipc implementation.
>
> ----- Original Message ----- 
> From: "Roland Dreier" <rolandd at cisco.com>
> To: "James Lentini" <jlentini at netapp.com>
> Cc: "Richard Frank" <richard.frank at oracle.com>; <swg at infinibandta.org>; 
> <openib-general at openib.org>; "Davis, Arlin R" <arlin.r.davis at intel.com>
> Sent: Wednesday, October 19, 2005 5:56 PM
> Subject: Re: [dat-discussions] RE: [openib-general] Re: iWARP 
> emulationprotocol
>
>
>>    James> The D is somewhat misleading. It refers to the
>>    James> functionality provider to the consumer application.
>>
>> Right, that's what we're talking about.  The RDS implementation only
>> needs a few bytes of private data on top of the IP address info.  So
>> the RDS implementation itself is clearly OK with any of the proposals
>> being discussed here.
>>
>> However, Rick mentioned that Oracle needs 64 bytes of private data in
>> both directions for connections.  My question was how Oracle works on
>> top of RDS, which does not provide any private data to consumers.
>>
>> - R.
>>
>