linux-kernel - Re: [PATCH 05/11] cxl/mem: Trace General Media Event Record

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Message-ID: <20221116153106.000025d7@Huawei.com>
Date:   Wed, 16 Nov 2022 15:31:06 +0000
From:   Jonathan Cameron <Jonathan.Cameron@...wei.com>
To:     <ira.weiny@...el.com>
CC:     Dan Williams <dan.j.williams@...el.com>,
        Alison Schofield <alison.schofield@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        "Ben Widawsky" <bwidawsk@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Davidlohr Bueso <dave@...olabs.net>,
        <linux-kernel@...r.kernel.org>, <linux-cxl@...r.kernel.org>
Subject: Re: [PATCH 05/11] cxl/mem: Trace General Media Event Record

On Thu, 10 Nov 2022 10:57:52 -0800
ira.weiny@...el.com wrote:

> From: Ira Weiny <ira.weiny@...el.com>
> 
> CXL rev 3.0 section 8.2.9.2.1.1 defines the General Media Event Record.
> 
> Determine if the event read is a general media record and if so trace
> the record as a General Media Event Record.
> 
> Signed-off-by: Ira Weiny <ira.weiny@...el.com>
> 
A few v2.0 references left in here that should be updated given it's new code.

With those tidied up
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>


> diff --git a/include/trace/events/cxl.h b/include/trace/events/cxl.h
> index 60dec9a84918..a0c20e110708 100644
> --- a/include/trace/events/cxl.h
> +++ b/include/trace/events/cxl.h
> @@ -119,6 +119,130 @@ TRACE_EVENT(cxl_generic_event,
>  		__print_hex(__entry->data, CXL_EVENT_RECORD_DATA_LENGTH))
>  );
>  
> +/*
> + * Physical Address field masks
> + *
> + * General Media Event Record
> + * CXL v2.0 Section 8.2.9.1.1.1; Table 154

Update to CXL rev 3.0 as I think we are preferring latest
spec references on any new code.

> + *
> + * DRAM Event Record
> + * CXL rev 3.0 section 8.2.9.2.1.2; Table 8-44
> + */

> +
> +/*
> + * General Media Event Record - GMER
> + * CXL v2.0 Section 8.2.9.1.1.1; Table 154
Update ref to r3.0
Never v or the spec folk will get irritable :)

> + */