[Openib-windows] Using Netperf with WSD

[Fabian Tillier]

Hi Tzachi,

On 8/13/06, Tzachi Dar <tzachid at mellanox.co.il> wrote:
>
> Hi Fab,
>
> I have been trying to run netperf with WSD and the call to duplicate socket
> fails there.
> The main reason is probably the fact that the switch calls
> IBSPDuplicateSocket with a process id of a wrong process (usually one of the
> svchosts).
>
> Still (ignoring this issue) it seems that there is a call to IBSPCloseSocket
> that calls shutdown_and_destroy_socket_info. In this call,
> we have old_state == IBSP_DUPLICATING_OLD which causes us to not do anything
> at the QP level, and therefore the code:
>  while( socket_info->send_cnt || socket_info->recv_cnt )
>   ib_cq_comp( socket_info->cq_tinfo );
> keeps looping for ever. (recv_cnt is not 0)
>
> I have created a small patch that solves this problem (see bellow).

I just checked in a fix for this, revision 454.  It is different than
what you posted, as the error flow was incorrect in the
IBSPDuplicateSocket function.  The patch I checked in will only change
the state of the socket if all the steps for duplication succeed
locally.  This means that if IBSPDuplicateSocket fails, the socket is
left in the connected state.

I also found a leak of the mapped view of the file handle, and fixed that.

Please let me know if you see any issues with it.

Thanks,

- Fab