Hi all,
This series adds a new counter to the Arm SCMI firmware driver to track
the number of in-flight message transfers during debug and trace. This
will be useful for examining behaviour under a large load with regards
to concurrent messages being sent and received. As the counter only gives
a live value, printing the value in trace allows logging of the in-flight
xfers.
The series is divided into three small patches:
Patch [1/3]
- Adds a function to decrement debug counters, similar to the
existing counter to increment debug counters.
Patch [2/3]
- Adds a new xfers_inflight debug counter to track active
transfers.
Patch [3/3]
- Enhances two tracepoints (scmi_xfer_begin and scmi_xfer_end) to
include the number of in-flight transfers. Also adds a function
(scmi_inflight_count) that retrieves the current in-flight count
for use in tracing.
This series is based off the branch sudeep/for-next/scmi/updates at commit
397f802d06c4 ("firmware: arm_scmi: quirk: Force perf level get fastchannel").
Regards,
Phil
---
V1->V2
- Amendments to commit messages
- Final commit of V1 squashed into commit three
- Removal of erroneous blank space
- rebased on sudeep/for-next/scmi/updates as previously based on v6.16-rc2
Philip Radford (3):
firmware: arm_scmi: Add debug decrement counter
firmware: arm_scmi: Add xfer_inflight counter
include: trace: Add inflight_xfer counter tracepoint
drivers/firmware/arm_scmi/common.h | 8 ++++++++
drivers/firmware/arm_scmi/driver.c | 28 ++++++++++++++++++++++++++--
drivers/firmware/arm_scmi/raw_mode.c | 6 ++++--
include/trace/events/scmi.h | 24 ++++++++++++++----------
4 files changed, 52 insertions(+), 14 deletions(-)
--
2.25.1