netdev - Re: [PATCH] qed: Enable RDMA relaxed ordering

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Message-ID: <20210823133340.GC543798@ziepe.ca>
Date:   Mon, 23 Aug 2021 10:33:40 -0300
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     Shai Malin <smalin@...vell.com>, davem@...emloft.net,
        kuba@...nel.org, netdev@...r.kernel.org, aelior@...vell.com,
        malin1024@...il.com, RDMA mailing list <linux-rdma@...r.kernel.org>
Subject: Re: [PATCH] qed: Enable RDMA relaxed ordering

On Mon, Aug 23, 2021 at 02:52:21PM +0300, Leon Romanovsky wrote:
> +RDMA
> 
> Jakub, David
> 
> Can we please ask that everything directly or indirectly related to RDMA
> will be sent to linux-rdma@ too?
> 
> On Sun, Aug 22, 2021 at 09:54:48PM +0300, Shai Malin wrote:
> > Enable the RoCE and iWARP FW relaxed ordering.
> > 
> > Signed-off-by: Ariel Elior <aelior@...vell.com>
> > Signed-off-by: Shai Malin <smalin@...vell.com>
> >  drivers/net/ethernet/qlogic/qed/qed_rdma.c | 2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > diff --git a/drivers/net/ethernet/qlogic/qed/qed_rdma.c b/drivers/net/ethernet/qlogic/qed/qed_rdma.c
> > index 4f4b79250a2b..496092655f26 100644
> > +++ b/drivers/net/ethernet/qlogic/qed/qed_rdma.c
> > @@ -643,6 +643,8 @@ static int qed_rdma_start_fw(struct qed_hwfn *p_hwfn,
> >  				    cnq_id);
> >  	}
> >  
> > +	p_params_header->relaxed_ordering = 1;
> 
> Maybe it is only description that needs to be updated, but I would
> expect to see call to pcie_relaxed_ordering_enabled() before setting
> relaxed_ordering to always true.
> 
> If we are talking about RDMA, the IB_ACCESS_RELAXED_ORDERING flag should
> be taken into account too.

Why does this file even exist in netdev? This whole struct
qed_rdma_ops mess looks like another mis-design to support out of tree
modules??

Jason