[ofa-general] tcp/rdma port unification patch in librdmacm

Steve Wise swise at opengridcomputing.com
Wed Mar 11 11:11:26 PDT 2009


Tung, Chien Tin wrote:
>> Or Gerlitz wrote:
>>     
>>>> Depends on the 4-tuple. The demux done in the TOE hw uses  
>>>>         
>> src addr/port and dst addr/port.
>>     
>>>>     
>>>>         
>>> is this somehow standardized or its being impl. dependent?
>>>
>>> Or.
>>>   
>>>       
>> This is standard TCP.   The 4-tuple identifies the connection.
>>
>>     
>
> Steve,
>
> With the demuxing it would hurt performance, is this what we really
> want to do?
>   


I don't know what you are talking about.  TCP input demuxing is done in 
hardware for the iwarp devices.  There is no performance issue here...


> On the other hand, I just checked our SLES 11 RC2 installation
> and the TCP port unification patch is there.  If we can get a port
> reserved for iSER, we should be able to enable the unification
> patch by default and get out of this mess.  What do you think?
>
> Chien

Is it in RH too?


Steve.



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