linux-kernel - Re: [PATCH V6 03/10] PCI/DOE: Add Data Object Exchange Aux Driver

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Date:   Thu, 10 Feb 2022 13:51:29 -0800
From:   Ira Weiny <ira.weiny@...el.com>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Alison Schofield <alison.schofield@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Ben Widawsky <ben.widawsky@...el.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-cxl@...r.kernel.org, Linux PCI <linux-pci@...r.kernel.org>
Subject: Re: [PATCH V6 03/10] PCI/DOE: Add Data Object Exchange Aux Driver

On Wed, Feb 09, 2022 at 11:57:38AM -0800, Dan Williams wrote:
> On Wed, Feb 9, 2022 at 8:58 AM Jonathan Cameron
> <Jonathan.Cameron@...wei.com> wrote:
> [..]
> > > It just seems an unnecessary hunk of code for the core to carry when
> > > it's trivial for a client of the core to do:
> > >
> > > task->private = &completion;
> > > task->end_task = complete_completion;
> > > submit_task()
> > > wait_for_completion(&completion);
> >
> > OK, we can move this to the callers though function obviously will
> > also need renaming - I guess to pci_doe_exchange() and now need to take a
> > task rather than the exchange.
> >
> > I personally slightly prefer the layered approach, but don't care that
> > strongly.
> 
> Like I said, you and Ira are holding the pen, so if you decide to keep
> the layering, just document the ontology somewhere and I'll let it go.

I'm busy with the PKS series ATM but I should get back to reviewing all these
comments soon.

Ira