[openib-general] IBM eHCA testing..

[Hal Rosenstock]

Hi Heiko,

On Tue, 2005-10-11 at 08:43, Heiko J Schick wrote:
> this morning I've looked in detail into the problem you've reported on Oct 
> 10 via the OpenIB mailing-list [1]. It seems that the kernel panic is an 
> IPoIB issues.
> 
> [1]:  http://openib.org/pipermail/openib-general/2005-October/012353.html
> 
> The following things appens:
> 
> 1.      modprobe hcad_mod ehca_nr_ports=1
>         The eHCA InfiniBand Device Driver is loaded.
> 
> 2.      modprobe ib_mad
>         The ib_mad stack creates an AQP1. This will start the port 
> activation process. 
>         By my count it will take more than 110 / 120 seconds to activate a 
> port. 
>         Our device driver gets a timeout, which means that the port is NOT 
> active. and
>         ib_modify_qp will not work (for any QP, doesn't matter if it was 
> created in the ib_mad 
>         stack or in the ib_ipoib stack).

Where does this time to activate a port come from ? Is there some
maximum time in which the eHCA firmware requires this to be completed ?

-- Hal