linux-kernel - Re: [PATCH v3 4/5] firmware: arm_scmi: Create debugfs files for statistics

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Message-ID: <ZqEPDY45bPuQK95W@pluto>
Date: Wed, 24 Jul 2024 15:26:21 +0100
From: Cristian Marussi <cristian.marussi@....com>
To: Luke Parkin <luke.parkin@....com>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	arm-scmi@...r.kernel.org, sudeep.holla@....com,
	cristian.marussi@....com
Subject: Re: [PATCH v3 4/5] firmware: arm_scmi: Create debugfs files for
 statistics

On Mon, Jul 15, 2024 at 02:37:50PM +0100, Luke Parkin wrote:
> Create debugfs files for the statistics in the scmi_debug_stats struct
> 
> Signed-off-by: Luke Parkin <luke.parkin@....com>

Here you missed the seprator

---

before the changelog...so this will go into the final commit.

Thanks,
Cristian

> v2->v3
> Add extra statistics also added in v3
> v1->v2
> Only create stats pointer if stats are enabled
> Move stats debugfs creation into a seperate helper function
> ---
>  drivers/firmware/arm_scmi/driver.c | 38 ++++++++++++++++++++++++++++++
>  1 file changed, 38 insertions(+)
> 
> diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c
> index b22f104cda36..9378e2d8af4f 100644
> --- a/drivers/firmware/arm_scmi/driver.c
> +++ b/drivers/firmware/arm_scmi/driver.c
> @@ -2865,6 +2865,41 @@ static int scmi_device_request_notifier(struct notifier_block *nb,
>  	return NOTIFY_OK;
>  }
>  
> +static void scmi_debugfs_stats_setup(struct scmi_info *info,
> +				     struct dentry *trans)
> +{
> +	struct dentry *stats;
> +
> +	stats = debugfs_create_dir("stats", trans);
> +
> +	debugfs_create_atomic_t("sent_ok", 0400, stats,
> +				&info->dbg_stats[SENT_OK]);
> +	debugfs_create_atomic_t("sent_fail", 0400, stats,
> +				&info->dbg_stats[SENT_FAIL]);
> +	debugfs_create_atomic_t("sent_fail_polling_unsupported", 0400, stats,
> +				&info->dbg_stats[SENT_FAIL_POLLING_UNSUPPORTED]);
> +	debugfs_create_atomic_t("sent_fail_channel_not_found", 0400, stats,
> +				&info->dbg_stats[SENT_FAIL_CHANNEL_NOT_FOUND]);
> +	debugfs_create_atomic_t("response_ok", 0400, stats,
> +				&info->dbg_stats[RESPONSE_OK]);
> +	debugfs_create_atomic_t("notif_ok", 0400, stats,
> +				&info->dbg_stats[NOTIF_OK]);
> +	debugfs_create_atomic_t("dlyd_resp_ok", 0400, stats,
> +				&info->dbg_stats[DLYD_RESPONSE_OK]);
> +	debugfs_create_atomic_t("xfers_resp_timeout", 0400, stats,
> +				&info->dbg_stats[XFERS_RESPONSE_TIMEOUT]);
> +	debugfs_create_atomic_t("response_polled_ok", 0400, stats,
> +				&info->dbg_stats[RESPONSE_POLLED_OK]);
> +	debugfs_create_atomic_t("err_msg_unexpected", 0400, stats,
> +				&info->dbg_stats[ERR_MSG_UNEXPECTED]);
> +	debugfs_create_atomic_t("err_msg_invalid", 0400, stats,
> +				&info->dbg_stats[ERR_MSG_INVALID]);
> +	debugfs_create_atomic_t("err_msg_nomem", 0400, stats,
> +				&info->dbg_stats[ERR_MSG_NOMEM]);
> +	debugfs_create_atomic_t("err_protocol", 0400, stats,
> +				&info->dbg_stats[ERR_PROTOCOL]);
> +}
> +
>  static void scmi_debugfs_common_cleanup(void *d)
>  {
>  	struct scmi_debug_info *dbg = d;
> @@ -2931,6 +2966,9 @@ static struct scmi_debug_info *scmi_debugfs_common_setup(struct scmi_info *info)
>  	debugfs_create_u32("rx_max_msg", 0400, trans,
>  			   (u32 *)&info->rx_minfo.max_msg);
>  
> +	if (IS_ENABLED(CONFIG_ARM_SCMI_DEBUG_STATISTICS))
> +		scmi_debugfs_stats_setup(info, trans);
> +
>  	dbg->top_dentry = top_dentry;
>  
>  	if (devm_add_action_or_reset(info->dev,
> -- 
> 2.34.1
> 
>