On Thu, Jun 10, 2021 at 9:23 AM Leon Romanovsky <leon@xxxxxxxxxx> wrote:
>
> On Tue, Jun 08, 2021 at 12:30:38PM +0200, Jack Wang wrote:
> > From: Md Haris Iqbal <haris.iqbal@xxxxxxxxxxxxxxx>
> >
> > When using rdma_rxe, post_one_recv() returns
> > NOMEM error due to the full recv queue.
> > This patch increase the number of WR for receive queue
> > to support all devices.
>
> Why don't you query IB device to get max_qp_wr and set accordingly?
>
> Thanks
Hi Leon,
We don't want to set the max_qp_wr, it will consume lots of memory.
this patch is only for service connection
used control messages.
For IO connection, we do query and max_qp_wr of the device, but still
we need to set the minimum to
reduce the memory consumption.
Thanks! Regards
>
> >
> > Signed-off-by: Md Haris Iqbal <haris.iqbal@xxxxxxxxxxxxxxx>
> > Signed-off-by: Jack Wang <jinpu.wang@xxxxxxxxxxxxxxx>
> > Signed-off-by: Gioh Kim <gi-oh.kim@xxxxxxxxx>
> > ---
> > drivers/infiniband/ulp/rtrs/rtrs-clt.c | 7 ++++---
> > drivers/infiniband/ulp/rtrs/rtrs-srv.c | 2 +-
> > 2 files changed, 5 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
> > index cd53edddfe1f..acf0fde410c3 100644
> > --- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c
> > +++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c
> > @@ -1579,10 +1579,11 @@ static int create_con_cq_qp(struct rtrs_clt_con *con)
> > lockdep_assert_held(&con->con_mutex);
> > if (con->c.cid == 0) {
> > /*
> > - * One completion for each receive and two for each send
> > - * (send request + registration)
> > + * Two (request + registration) completion for send
> > + * Two for recv if always_invalidate is set on server
> > + * or one for recv.
> > * + 2 for drain and heartbeat
> > - * in case qp gets into error state
> > + * in case qp gets into error state.
> > */
> > max_send_wr = SERVICE_CON_QUEUE_DEPTH * 2 + 2;
> > max_recv_wr = SERVICE_CON_QUEUE_DEPTH * 2 + 2;
> > diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv.c b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
> > index 04ec3080e9b5..bb73f7762a87 100644
> > --- a/drivers/infiniband/ulp/rtrs/rtrs-srv.c
> > +++ b/drivers/infiniband/ulp/rtrs/rtrs-srv.c
> > @@ -1656,7 +1656,7 @@ static int create_con(struct rtrs_srv_sess *sess,
> > * + 2 for drain and heartbeat
> > */
> > max_send_wr = SERVICE_CON_QUEUE_DEPTH * 2 + 2;
> > - max_recv_wr = SERVICE_CON_QUEUE_DEPTH + 2;
> > + max_recv_wr = SERVICE_CON_QUEUE_DEPTH * 2 + 2;
> > cq_size = max_send_wr + max_recv_wr;
> > } else {
> > /*
> > --
> > 2.25.1
> >
