linux-kernel - Re: [PATCH V2 10/11] cxl/test: Add specific events

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Date:   Thu, 1 Dec 2022 14:00:56 -0700
From:   Dave Jiang <dave.jiang@...el.com>
To:     ira.weiny@...el.com, Dan Williams <dan.j.williams@...el.com>
Cc:     Jonathan Cameron <Jonathan.Cameron@...wei.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 V2 10/11] cxl/test: Add specific events



On 11/30/2022 5:27 PM, ira.weiny@...el.com wrote:
> From: Ira Weiny <ira.weiny@...el.com>
> 
> Each type of event has different trace point outputs.
> 
> Add mock General Media Event, DRAM event, and Memory Module Event
> records to the mock list of events returned.
> 
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
> Signed-off-by: Ira Weiny <ira.weiny@...el.com>

Reviewed-by: Dave Jiang <dave.jiang@...el.com>

> 
> ---
> Changes from V1:
> 	Jonathan
> 		use put_unaligned_le16()
> 		fix spacing
> 
> Changes from RFC:
> 	Adjust for struct changes
> 	adjust for unaligned fields
> ---
>   tools/testing/cxl/test/events.c | 73 +++++++++++++++++++++++++++++++++
>   1 file changed, 73 insertions(+)
> 
> diff --git a/tools/testing/cxl/test/events.c b/tools/testing/cxl/test/events.c
> index a3d2ec7cc9fe..0bcc485e07da 100644
> --- a/tools/testing/cxl/test/events.c
> +++ b/tools/testing/cxl/test/events.c
> @@ -206,6 +206,66 @@ struct cxl_event_record_raw hardware_replace = {
>   	.data = { 0xDE, 0xAD, 0xBE, 0xEF },
>   };
>   
> +struct cxl_event_gen_media gen_media = {
> +	.hdr = {
> +		.id = UUID_INIT(0xfbcd0a77, 0xc260, 0x417f,
> +				0x85, 0xa9, 0x08, 0x8b, 0x16, 0x21, 0xeb, 0xa6),
> +		.length = sizeof(struct cxl_event_gen_media),
> +		.flags[0] = CXL_EVENT_RECORD_FLAG_PERMANENT,
> +		/* .handle = Set dynamically */
> +		.related_handle = cpu_to_le16(0),
> +	},
> +	.phys_addr = cpu_to_le64(0x2000),
> +	.descriptor = CXL_GMER_EVT_DESC_UNCORECTABLE_EVENT,
> +	.type = CXL_GMER_MEM_EVT_TYPE_DATA_PATH_ERROR,
> +	.transaction_type = CXL_GMER_TRANS_HOST_WRITE,
> +	/* .validity_flags = <set below> */
> +	.channel = 1,
> +	.rank = 30
> +};
> +
> +struct cxl_event_dram dram = {
> +	.hdr = {
> +		.id = UUID_INIT(0x601dcbb3, 0x9c06, 0x4eab,
> +				0xb8, 0xaf, 0x4e, 0x9b, 0xfb, 0x5c, 0x96, 0x24),
> +		.length = sizeof(struct cxl_event_dram),
> +		.flags[0] = CXL_EVENT_RECORD_FLAG_PERF_DEGRADED,
> +		/* .handle = Set dynamically */
> +		.related_handle = cpu_to_le16(0),
> +	},
> +	.phys_addr = cpu_to_le64(0x8000),
> +	.descriptor = CXL_GMER_EVT_DESC_THRESHOLD_EVENT,
> +	.type = CXL_GMER_MEM_EVT_TYPE_INV_ADDR,
> +	.transaction_type = CXL_GMER_TRANS_INTERNAL_MEDIA_SCRUB,
> +	/* .validity_flags = <set below> */
> +	.channel = 1,
> +	.bank_group = 5,
> +	.bank = 2,
> +	.column = {0xDE, 0xAD},
> +};
> +
> +struct cxl_event_mem_module mem_module = {
> +	.hdr = {
> +		.id = UUID_INIT(0xfe927475, 0xdd59, 0x4339,
> +				0xa5, 0x86, 0x79, 0xba, 0xb1, 0x13, 0xb7, 0x74),
> +		.length = sizeof(struct cxl_event_mem_module),
> +		/* .handle = Set dynamically */
> +		.related_handle = cpu_to_le16(0),
> +	},
> +	.event_type = CXL_MMER_TEMP_CHANGE,
> +	.info = {
> +		.health_status = CXL_DHI_HS_PERFORMANCE_DEGRADED,
> +		.media_status = CXL_DHI_MS_ALL_DATA_LOST,
> +		.add_status = (CXL_DHI_AS_CRITICAL << 2) |
> +			      (CXL_DHI_AS_WARNING << 4) |
> +			      (CXL_DHI_AS_WARNING << 5),
> +		.device_temp = { 0xDE, 0xAD},
> +		.dirty_shutdown_cnt = { 0xde, 0xad, 0xbe, 0xef },
> +		.cor_vol_err_cnt = { 0xde, 0xad, 0xbe, 0xef },
> +		.cor_per_err_cnt = { 0xde, 0xad, 0xbe, 0xef },
> +	}
> +};
> +
>   u32 cxl_mock_add_event_logs(struct cxl_dev_state *cxlds)
>   {
>   	struct device *dev = cxlds->dev;
> @@ -223,10 +283,23 @@ u32 cxl_mock_add_event_logs(struct cxl_dev_state *cxlds)
>   		return 0;
>   	}
>   
> +	put_unaligned_le16(CXL_GMER_VALID_CHANNEL | CXL_GMER_VALID_RANK,
> +			   &gen_media.validity_flags);
> +
> +	put_unaligned_le16(CXL_DER_VALID_CHANNEL | CXL_DER_VALID_BANK_GROUP |
> +			   CXL_DER_VALID_BANK | CXL_DER_VALID_COLUMN,
> +			   &dram.validity_flags);
> +
>   	event_store_add_event(mes, CXL_EVENT_TYPE_INFO, &maint_needed);
> +	event_store_add_event(mes, CXL_EVENT_TYPE_INFO,
> +			      (struct cxl_event_record_raw *)&gen_media);
> +	event_store_add_event(mes, CXL_EVENT_TYPE_INFO,
> +			      (struct cxl_event_record_raw *)&mem_module);
>   	mes->ev_status |= CXLDEV_EVENT_STATUS_INFO;
>   
>   	event_store_add_event(mes, CXL_EVENT_TYPE_FATAL, &hardware_replace);
> +	event_store_add_event(mes, CXL_EVENT_TYPE_FATAL,
> +			      (struct cxl_event_record_raw *)&dram);
>   	mes->ev_status |= CXLDEV_EVENT_STATUS_FATAL;
>   
>   	return mes->ev_status;