***SPAM*** Re: [ofa-general] ConnectX IB HCA with Ubuntu 8.04

[Steven Truelove]

Okay, thanks, this is likely what I missed.

Steven Truelove


Doug Ledford wrote:
> On Sat, 2008-09-06 at 07:18 -0400, Steven Truelove wrote:
>   
>> Yes, the DHCP server starts just fine.  The hardware address was
>> pulled from the output of ifconfig on the client. Even if the hardware
>> address was wrong, or I didn't list the host at all, the 'range'
>> setting should ensure that an address is provided from the open pool.
>>
>> There is output in the logs to indicate that there is no subnet
>> listing for ib1 and eth0, and that it won't be listening on those
>> interfaces.  This implies that it is working on eth1 (where DHCP is
>> tested working) and ib0 (where no log references to DHCPDISCOVER are
>> made, even though the client is sending them).
>>
>> That said, am I barking up the wrong tree entirely by even trying to
>> make this work?  There are a few references to this being possible
>> when I google for 'infiniband dhcp', and this is where I got the
>> 'always-broadcast on' setting from.  Apparently this is necessary.
>> But I couldn't find anything further to help me.
>>     
>
> Did you apply the dhcp patch that's in the OFED distribution to the dhcp
> server and recompile?  Without, it doesn't know how to parse IB
> broadcast packets (and with it, it still doesn't, but it switches from
> raw mode to cooked socket mode where it doesn't have to know the
> structure of a raw IPoIB packet).  It would certainly explain the dhcp
> server silently dropping the packets, they wouldn't look like dhcp
> requests in raw mode.
>
>   
>> Thanks,
>>
>> Steven Truelove
>>
>>
>>
>> Doug Ledford wrote: 
>>     
>>> On Fri, 2008-09-05 at 16:09 -0400, Steven Truelove wrote:
>>>   
>>>       
>>>> Okay, thanks, I have run opensm and I have gotten IPoIB working as
>>>> well, although there is a problem.  IPoIB works fine with static IPs,
>>>> but I can't get DHCP to work.  The logs suggest that the DHCP server
>>>> simply isn't seeing the DHCPDISCOVERs from the client.  Here is the
>>>> relevant chunk of dhcpd.conf:
>>>>
>>>> subnet 192.168.200.0 netmask 255.255.255.0 {
>>>>
>>>>   always-broadcast on;
>>>>
>>>>   range 192.168.200.10 192.168.200.50;
>>>>
>>>>   option broadcast-address 192.168.200.255;
>>>> }
>>>>
>>>>
>>>> host sappsu4-ib {
>>>>   hardware ethernet 80:00:04:04:FE:80:00:00:00:00:00:00:00:00:00:00;
>>>>   fixed-address 192.168.200.104;
>>>> }
>>>>
>>>>
>>>> Does this have any chance of working?
>>>>     
>>>>         
>>> Will your dhcp server even start up with that hardware ethernet line in
>>> it?  None of the patches for the dhcp server that I've seen enable dhcp
>>> to parse that big of an ethernet definition.
>>>
>>>   
>>>       
>>>> Thanks,
>>>>
>>>> Steven Truelove
>>>>
>>>>
>>>>
>>>>
>>>> Sasha Khapyorsky wrote: 
>>>>     
>>>>         
>>>>> On 16:39 Fri 05 Sep     , Bernd Schubert wrote:
>>>>>   
>>>>>       
>>>>>           
>>>>>> We just didn't have the time yet to complete all the packaging and to push 
>>>>>> it upstream to Debian, here is what we have so far
>>>>>>
>>>>>> # Etchy packages, but also should work for hardy
>>>>>> deb http://www.pci.uni-heidelberg.de/tc/usr/bernd/downloads/infiniband/etch ./
>>>>>>
>>>>>> # Hardy packages, but not recently maintained (only for my workstation)
>>>>>> deb http://www.pci.uni-heidelberg.de/tc/usr/bernd/downloads/infiniband/hardy/ ./
>>>>>>     
>>>>>>         
>>>>>>             
>>>>> Great!
>>>>>
>>>>> Sasha
>>>>>
>>>>>   
>>>>>       
>>>>>           
>>>> -- 
>>>> Steven Truelove
>>>> Array Systems Computing, Inc.
>>>> 1120 Finch Avenue West, 7th Floor
>>>> Toronto, Ontario
>>>> M3J 3H7
>>>> CANADA
>>>> http://www.array.ca
>>>> truelove at array.ca
>>>> Phone: (416) 736-0900 x307
>>>> Fax: (416) 736-4715
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>>>>     
>>>>         
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