linux-kernel - Re: [PATCH v3 1/6] cxl/pci: Add RCH downstream port AER and RAS register discovery

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Date:   Fri, 14 Apr 2023 12:47:02 +0100
From:   Jonathan Cameron <Jonathan.Cameron@...wei.com>
To:     Terry Bowman <Terry.Bowman@....com>
CC:     <alison.schofield@...el.com>, <vishal.l.verma@...el.com>,
        <ira.weiny@...el.com>, <bwidawsk@...nel.org>,
        <dan.j.williams@...el.com>, <dave.jiang@...el.com>,
        <linux-cxl@...r.kernel.org>, <rrichter@....com>,
        <linux-kernel@...r.kernel.org>, <bhelgaas@...gle.com>
Subject: Re: [PATCH v3 1/6] cxl/pci: Add RCH downstream port AER and RAS
 register discovery

> >> +	endpoint = devm_cxl_add_port(host, &cxlmd->dev, cxlds->component_reg_phys,
> >>  				     parent_dport);  
> > As above, I'd prefer to see this refactor done in a precursor patch before the new
> > stuff is added.  I like reviewing noop patches as I don't have to think much (so
> > can do it when I'm supposedly in a meeting ;)
> >   
>  
> Ok. I'll add an earlier patch that introduces cxl_setup_rcrb() and first moves this 
> chunk into cxl_setup_rcrb(). The following patch will replace the cxl_setup_rcrb() 
> logic with the AER and RAS discovery.
> 
> My understanding is the requested refactoring changes then splits this patch into 
> the 3 patches listed below (using git log latest first order): 
> - Add RCH downstream port AER and RAS register discovery
> - Refactor RCD component discovery into separate function
> - Refactor RCRB register mapping into separate function

Spot on I think.

Thanks,

Jonathan