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From: Dan Williams <dan.j.williams@intel.com>
To: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: linux-cxl@vger.kernel.org, Ben Widawsky <ben.widawsky@intel.com>,
	Vishal L Verma <vishal.l.verma@intel.com>,
	"Schofield, Alison" <alison.schofield@intel.com>,
	"Weiny, Ira" <ira.weiny@intel.com>,
	Linux PCI <linux-pci@vger.kernel.org>
Subject: Re: [PATCH 4/8] cxl/core/regs: Make cxl_map_{component, device}_regs() device generic
Date: Fri, 18 Mar 2022 10:06:09 -0700	[thread overview]
Message-ID: <CAPcyv4jiwaX9N6DddKOYi6o6bvxiOd70dLVSfB0T+N8Tb918yQ@mail.gmail.com> (raw)
In-Reply-To: <20220317102530.00007a79@Huawei.com>

On Thu, Mar 17, 2022 at 3:25 AM Jonathan Cameron
<Jonathan.Cameron@huawei.com> wrote:
>
> On Tue, 15 Mar 2022 21:14:03 -0700
> Dan Williams <dan.j.williams@intel.com> wrote:
>
> > There is no need to carry the barno and the block offset through the
> > stack, just convert them to a resource base immediately.
> >
> > Signed-off-by: Dan Williams <dan.j.williams@intel.com>
>
> Other that this involving paths where we try to carry on after a broken
> device is detected which I'd be far from confident are correct or regularly
> tested, the patch looks fine.

cxl_test covers some of these cases, but otherwise the failed state
should be equivalent to the state after "cxl disable-memdev $memX"

> Particular case that bothers me is undersized bars. Before this patch
> those were (I think) an error that would fail probe.  Are they still after
> this patch?

Yes, that check just moves to cxl_decode_regblock() directly.

>
> Assuming that part is fine.
>
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Thanks.

  reply	other threads:[~2022-03-18 17:06 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-16  4:13 [PATCH 0/8] cxl/pci: Add fundamental error handling Dan Williams
2022-03-16  4:13 ` [PATCH 1/8] cxl/pci: Cleanup repeated code in cxl_probe_regs() helpers Dan Williams
2022-03-17 10:02   ` Jonathan Cameron
2022-03-16  4:13 ` [PATCH 2/8] cxl/pci: Cleanup cxl_map_device_regs() Dan Williams
2022-03-17 10:07   ` Jonathan Cameron
2022-03-18 17:13     ` Dan Williams
2022-03-16  4:13 ` [PATCH 3/8] cxl/pci: Kill cxl_map_regs() Dan Williams
2022-03-17 10:09   ` Jonathan Cameron
2022-03-18 17:08     ` Dan Williams
2022-03-16  4:14 ` [PATCH 4/8] cxl/core/regs: Make cxl_map_{component, device}_regs() device generic Dan Williams
2022-03-17 10:25   ` Jonathan Cameron
2022-03-18 17:06     ` Dan Williams [this message]
2022-03-16  4:14 ` [PATCH 5/8] cxl/port: Limit the port driver to just the HDM Decoder Capability Dan Williams
2022-03-17 10:48   ` Jonathan Cameron
2022-03-16  4:14 ` [PATCH 6/8] cxl/pci: Prepare for mapping RAS Capability Structure Dan Williams
2022-03-17 10:56   ` Jonathan Cameron
2022-03-18 19:51     ` Dan Williams
2022-03-17 17:32   ` Ben Widawsky
2022-03-18 16:19     ` Dan Williams
2022-03-16  4:14 ` [PATCH 7/8] cxl/pci: Find and map the " Dan Williams
2022-03-17 15:10   ` Jonathan Cameron
2022-03-16  4:14 ` [PATCH 8/8] cxl/pci: Add (hopeful) error handling support Dan Williams
2022-03-17 15:16   ` Jonathan Cameron
2022-03-18  9:41   ` Shiju Jose
2022-04-24 22:15     ` Dan Williams
2022-03-16  4:23 ` [PATCH 0/8] cxl/pci: Add fundamental error handling Dan Williams

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