[ofw] ttcp does not connect when WinSockDirect is disabled?

[Smith, Stan]

Fab Tillier wrote:
> Smith, Stan wrote on Tue, 19 Oct 2010 at 12:04:00
>
>>
>> Hello,
>>   In running winOFED 2.3 RC4 tests, I find that simple ttcp
>> connections no longer work? One of the RC4 changes was that of not
>> enabling WSD by default. If one enables WSD then previously failing
>> ttcp.exe tests work correctly?
>
> Do you have WSD disabled on both machines?
Yes
ttcp fails without WSD as far back as svn.2848

ConnectX on Rx side, infinihost on Tx side.

> Does it work if you use some other network?
No - using ttcp with IPv4 for Ethernet device also fails.

>
> We never enable WSD in our testing, and IPoIB works fine.  Things
> should work if only one of the two peers have WSD enabled, as it
> should fall back to IPoIB, but perhaps something is broken.

All I do is install via .msi
set IPoIB LAC IPv4 static address.
ping
run ttcp test; it fails.
installsp -i
run same ttcp test which now correctly connects and runs.
installsp -r
run ttcp test now fails?

I'll verify ftp connectivity.
Ping works both ways.
The ttcp issue is a real mystery.

>
> -Fab
>
>> svr: ttcp -n 2048 -r (@host 10.10.4.113, where 10.10.4.113 is an
>> IPoIB Local Area Connection) cli: ttcp -n 2048 -t 10.10.4.113
>> This one fails.
>>
>> installsp -I    (on both svr & cli systems)
>> svr: ttcp -n 2048 -r (@host 10.10.4.113, where 10.10.4.113 is an
>> IPoIB Local Area Connection) cli: ttcp -n 2048 -t 10.10.4.113
>> This one OK works.
>>
>> Do installsp -r and ttcp fails again.
>>
>> Thoughts on how to correctly fix the issue?
>>
>> stan.
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