[ofw] some WinOF questions

Diego Guella diego.guella at sircomtech.com
Wed Nov 7 23:38:41 PST 2007


----- Original Message ----- 
>From: "Smith, Stan" <stan.smith at intel.com>
>Microsoft requires those who distribute SDP to sign a license with MS
>concerning IP rights of SDP.
>Since WinOF is open-source MS has declined to offer an SDP licensing
>option, therefore SDP is not part of WinOF (Windows OpenFabrics which is
>based on the openib-windows src tree).
>
>On the other hand, Mellanox has signed a licensing agreement with MS and
>therefore distributes SDP as part of their WinIB stack which is also
>based on the openIB-windows src plus Mellanox value add.

Oh, licensing problems. So I'll try with Mellanox WinIB 1.3

>The WinOF answer to missing SDP is WSD (Winsock Direct Provider) which
>from the user's perspective provides similar utilization of InfiniBand
>hardware as does SDP.

I think we can't use WSD.
1) Requires Windows Server 2003, wich means too many Euros (or $).
2) Can't communicate with Linux using WSD


>Within the Linux world, connected mode IPoIB approaches or in some cases
>surpasses SDP performance.
>Connected mode IPoIB is appearing on the WinOF 2008 horizon.

If it means early 2008, cool! Otherwise I think I need to find another 
solution



Thanks,
Diego




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