Roland Dreier wrote:
> Is ***list really what we want here? Can we just get away with **list?
Yes -- a single device is represented by a struct ibv_device *.
So an array of devices is represented by a struct ibv_device **.
And a pointer to such an array is struct ibv_device ***.
I understand. This is just API that I've seen that used '***'. Why not just
return a copy of the array?
> Would something like:
>
> struct ibv_device * ibv_get_device(index);
>
> work as well?
That could work as well. But it doesn't handle hotplug quite as well.
By returning a snapshot of all the known devices at a given moment, we
at least have a chance at doing something sensible with devices
appearing or disappearing.
This doesn't seem any worse to me. The user can reference device_array[i] or
call ibv_get_device(i).
I need to spend more time understanding how userspace hotplug will work.
- Sean
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