[ewg] Re: pkey change handling patch

[Moni Levy]

On 4/26/07, Michael S. Tsirkin <mst at dev.mellanox.co.il> wrote:
> > 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.

Do you suggest to implement ib_find_pkey & ib_find_gid by using ib_process_mad ?

-- Moni

>
> --
> MST
>