[openib-general] [PATCH][UVERBS][RFC] Exporting device node_type to user mode

[Tom Tucker]

On Thu, 2006-04-20 at 14:13 -0700, Roland Dreier wrote:
>     Tom> In order to support transport independent behavior for
>     Tom> user-mode RDMA CMA clients we need to export the node_type to
>     Tom> the user mode device attributes structure. The reason for
>     Tom> this is that the user-mode CMA needs to behave differently
>     Tom> for iWARP vs. IB transports when migrating QP state at
>     Tom> connection setup and tear down.
> 
> Adding node_type to the libibverbs API is OK (for the 1.1 release
> series...), but I think it would be better to read the existing
> /sys/class/infiniband/<xxx>/node_type field in sysfs rather than
> adding it in to the query stuff.
> 

Ok -- no problem. Are there rules/guidelines that govern the device
attributes that belong in sys/class/infiniband vs. attributes that
belong in device_attr?

>  - R.