From: Alison Schofield <alison.schofield@intel.com>
To: Richard Cheng <icheng@nvidia.com>
Cc: <dave@stgolabs.ne>, <jonathan.cameron@huawei.com>,
<dave.jiang@intel.com>, <vishal.l.verma@intel.com>,
<ira.weiny@intel.com>, <dan.j.williams@intel.com>,
<fabio.m.de.francesco@linux.intel.com>, <rrichter@amd.com>,
<ming.li@zohomail.com>, <linux-cxl@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <newtonl@nvidia.com>,
<kristinc@nvidia.com>, <kaihengf@nvidia.com>, <kobak@nvidia.com>
Subject: Re: [RFC PATCH] tools/testing/cxl: Support multi-decoder shared-dport topology
Date: Wed, 27 May 2026 18:40:29 -0700 [thread overview]
Message-ID: <ahedDZFbtaMUqeBM@aschofie-mobl2.lan> (raw)
In-Reply-To: <ahAvg9I9geuaBrEK@MWDK4CY14F>
On Fri, May 22, 2026 at 06:31:49PM +0800, Richard Cheng wrote:
> On Thu, May 21, 2026 at 06:29:22PM +0800, Alison Schofield wrote:
> > On Thu, May 21, 2026 at 04:48:06PM +0800, Richard Cheng wrote:
big snip
> Hi Alison, thanks for the suggestion and I think this script is a better solution
> then my patch, though I would like to ask can you provide the implementation of
> reply_regions() here? it seems like a missing piece for me that I can't execute
> this script on my machine.
replay_region support first appeared in kernel 7.1-rc1
f3b1d2260703 tools/testing/cxl: Enable replay of user regions as auto regions
and the tooling support is on the ndctl pending branch:
https://github.com/pmem/ndctl/tree/pending
ccc1955b697f test/common: add helpers for CXL region replay testing
81c7cdd6cbcb test/cxl-region-replay.sh: add test of region replay workflow
>
> Secondly, I want to make sure do you have any decoder with targets, and with some decoder
> without targets ? I wonder your filter might report that case as buggy as well.
The filter only catches the specific signature (1+7) of the bug Robert fixed.
Other mixes like 2+5 aren't expected from this bug or from a correct kernel,
so the test isn't designed to catch them. If a future regression produced a
different ratio, this test wouldn't notice.
-- Alison
>
> But the overall intention I can see this can be reproduce by the current infrastructure.
>
> And yes I'll spend time to work on the region replay gap, I'll send patches once I finish the
> work.
>
> Best regards,
> Richard Cheng.
>
snip
next prev parent reply other threads:[~2026-05-28 1:40 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-21 8:48 [RFC PATCH] tools/testing/cxl: Support multi-decoder shared-dport topology Richard Cheng
2026-05-21 16:02 ` Dave Jiang
2026-05-22 1:29 ` Alison Schofield
2026-05-22 10:31 ` Richard Cheng
2026-05-28 1:40 ` Alison Schofield [this message]
2026-05-29 5:30 ` Alison Schofield
2026-06-04 10:12 ` Richard Cheng
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