[ofa-general] Re: minutes from socket over RDMA discussion at workshop

[Rick Jones]

Michael S. Tsirkin wrote:
>>                             Bulk Transfer                  "Latency"
>>                         Unidir            Bidir
>>    Card          Mbit/s SDx   SDr   Mbit/s SDx   SDr   Tran/s SDx   SDr
>>---------------------------------------------------------------------------
>>                   nnnn  nnnnn nnnnn  nnnn  nnnnn nnnnn  nnnnn nnnnn nnnnn
>> AD313A  IPoIB     2970  4.418 4.544  3530  3.59  3.95   19290 n/a   n/a
>> AD313A  SDP       7810  0.453 1.048 12820  0.69  0.68   38030 26.29 26.29
>> AD313A  SDP p=0   7810  0.346 0.527 12670  0.42  0.043  19380 n/a   n/a
> 
> 
> What's AD313A? What's the MTU for IPoIB (in OFED 1.2 it defaults to 64K)?


The OFED is whatever is in RHEL5 - someone said that might be 1.1.  I had some 
problems getting all of it removed enough to get 1.2 to load there - in 
particular the ib_sdp stuff.

The AD313A shows as this in lspci:

08:00.0 InfiniBand: Mellanox Technologies MT25208 InfiniHost III Ex (Tavor 
compatibility mode) (rev 20)

AS313A is how people order it from HP for their Integrity servers.  The work was 
targetted at HPers, hence the use of the HP product number in the write-up.  I 
just didn't think to provide the decoder ring in the post :)

rick jones