linux-kernel - Re: [PATCH v7 3/6] cxl/memdev: Add trigger_poison

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Message-ID: <20230303154245.00007b4b@Huawei.com>
Date:   Fri, 3 Mar 2023 15:42:45 +0000
From:   Jonathan Cameron <Jonathan.Cameron@...wei.com>
To:     <alison.schofield@...el.com>
CC:     Dan Williams <dan.j.williams@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Ben Widawsky <bwidawsk@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        <linux-cxl@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v7 3/6] cxl/memdev: Add trigger_poison_list sysfs
 attribute

On Fri, 17 Feb 2023 18:18:51 -0800
alison.schofield@...el.com wrote:

> From: Alison Schofield <alison.schofield@...el.com>
> 
> When a boolean 'true' is written to this attribute the memdev driver
> retrieves the poison list from the device. The list consists of
> addresses that are poisoned, or would result in poison if accessed,
> and the source of the poison. This attribute is only visible for
> devices supporting the capability. The retrieved errors are logged
> as kernel trace events with the label 'cxl_poison'.
> 
> Signed-off-by: Alison Schofield <alison.schofield@...el.com>

Hi Alison,

The dates and version in the docs need an update. Otherwise
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>

> ---
>  Documentation/ABI/testing/sysfs-bus-cxl | 14 +++++++
>  drivers/cxl/core/memdev.c               | 56 +++++++++++++++++++++++++
>  drivers/cxl/cxlmem.h                    |  2 +-
>  3 files changed, 71 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/ABI/testing/sysfs-bus-cxl b/Documentation/ABI/testing/sysfs-bus-cxl
> index 3acf2f17a73f..d9421c965a3b 100644
> --- a/Documentation/ABI/testing/sysfs-bus-cxl
> +++ b/Documentation/ABI/testing/sysfs-bus-cxl
> @@ -415,3 +415,17 @@ Description:
>  		1), and checks that the hardware accepts the commit request.
>  		Reading this value indicates whether the region is committed or
>  		not.
> +
> +
> +What:		/sys/bus/cxl/devices/memX/trigger_poison_list
> +Date:		November, 2022
> +KernelVersion:	v6.2

Needs an update.

> +Contact:	linux-cxl@...r.kernel.org
> +Description: