[ewg] Re: pkey change handling patch

[Michael S. Tsirkin]

> Quoting Moni Levy <monil at voltaire.com>:
> Subject: Re: pkey change handling patch
> 
> On 4/25/07, Roland Dreier <rdreier at cisco.com> wrote:
> >
> >If you want to tackle more of the cache elimination plan we discussed
> >that would be great though.
> >
> 
> One more issue I looked into that in my opinion needs to be discussed
> is that we do not have an easy api that should provide us with the
> whole PKEY table and one for the whole GID table for a specific port.
> I know that ib_process_mad can be used it's just not user friendly.
> The only thing we have now is ib_query_pkey that gets us one pkey from
> a specific index and is implemented to get the 32 pkeys chunks under
> the hood (and something similar for gids). Do we need something like
> ib_get_pkey_table & ib_get_gid_table calls ? Just an interesting fact:
> ib_cache_update on a Mellanox card performs 64 + 64 + 1 = 129 commands
> instead the really needed 5 :)

If the intended usage is to speed up ib_cache_update, the point is
moot I think since we agreed we are getting rid of it.

-- 
MST