Re: [PATCH for-next v2 18/18] RDMA/rxe: Add parameters to control task type

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On Tue, Oct 25, 2022 at 09:35:01AM +0000, Daisuke Matsuda (Fujitsu) wrote:
> On Sat, Oct 22, 2022 5:01 AM Bob Pearson:
> > 
> > Add modparams to control the task types for req, comp, and resp
> > tasks.
> > 
> > It is expected that the work queue version will take the place of
> > the tasklet version once this patch series is accepted and moved
> > upstream. However, for now it is convenient to keep the option of
> > easily switching between the versions to help benchmarking and
> > debugging.
> > 
> > Signed-off-by: Ian Ziemba <ian.ziemba@xxxxxxx>
> > Signed-off-by: Bob Pearson <rpearsonhpe@xxxxxxxxx>
> > ---
> >  drivers/infiniband/sw/rxe/rxe_qp.c   | 6 +++---
> >  drivers/infiniband/sw/rxe/rxe_task.c | 8 ++++++++
> >  drivers/infiniband/sw/rxe/rxe_task.h | 4 ++++
> >  3 files changed, 15 insertions(+), 3 deletions(-)
> 
> <...>
> 
> > diff --git a/drivers/infiniband/sw/rxe/rxe_task.c b/drivers/infiniband/sw/rxe/rxe_task.c
> > index 9b8c9d28ee46..4568c4a05e85 100644
> > --- a/drivers/infiniband/sw/rxe/rxe_task.c
> > +++ b/drivers/infiniband/sw/rxe/rxe_task.c
> > @@ -6,6 +6,14 @@
> > 
> >  #include "rxe.h"
> > 
> > +int rxe_req_task_type = RXE_TASK_TYPE_TASKLET;
> > +int rxe_comp_task_type = RXE_TASK_TYPE_TASKLET;
> > +int rxe_resp_task_type = RXE_TASK_TYPE_TASKLET;
> 
> As the tasklet version is to be eliminated in near future, why
> don't we make the workqueue version default now?

Why don't we just get rid of the tasklet version right away?

Jason



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