linux-kernel - [PATCH v4 0/5] Add Per-transport SCMI debug statistics

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Message-Id: <20240730093342.3558162-1-luke.parkin@arm.com>
Date: Tue, 30 Jul 2024 10:33:37 +0100
From: Luke Parkin <luke.parkin@....com>
To: linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	arm-scmi@...r.kernel.org
Cc: sudeep.holla@....com,
	cristian.marussi@....com,
	Luke Parkin <luke.parkin@....com>
Subject: [PATCH v4 0/5]  Add Per-transport SCMI debug statistics

This series adds support for tracking information about the SCMI [Patch 2/3]
A config option to enable this [Patch 2]
Cleans up a unneeded call to handle_scmi_info [Patch 1]
In [Patch 4] a selection of new debugfs entries to present these counters
Then finally in [Patch 5] enabled writing on the debugfs entries to reset counts

Based on v6.9, Tested on Arm Juno [1]

Thanks,
Luke

[1]: https://www.arm.com/products/development-tools/development-boards/juno-arm-dev-platform

V3->V4
Rename to counters rather than statistics to reflect the scmi protocol better.
Use basic writing rather than custom function on debugfs in patch 5.
V2->V3
Switch statistic counters to an array to store statistics.
Add more statistics
Add the ability to reset statistics, both individually and all
V1->V2
Add a minor fix removing an unneeded call to handle_to_scmi_info
Use new scmi_log_stats op/no-op rather than if(IS_ENABLED)
Drop unneeded atomic_set's
Use a helper function for stats debugfs creation

Luke Parkin (5):
  firmware: arm_scmi: Remove superfluous handle_to_scmi_info
  firmware: arm_scmi: Add support for tracking metrics
  firmware: arm_scmi: Track basic SCMI metrics
  firmware: arm_scmi: Create debugfs files for counts
  firmware: arm_scmi: Reset counters

 drivers/firmware/arm_scmi/Kconfig  | 11 ++++
 drivers/firmware/arm_scmi/common.h | 27 ++++++++++
 drivers/firmware/arm_scmi/driver.c | 87 +++++++++++++++++++++++++++---
 3 files changed, 117 insertions(+), 8 deletions(-)

-- 
2.34.1