Commit 8632306e authored by Ilkka Koskinen's avatar Ilkka Koskinen Committed by Will Deacon
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Documentation: dwc_pcie_pmu: Fix the mnemonics and eventid 



Fix the event id and type in the example. In addition, the recent fix,
which addressed the mnemonics with mixed case, didn't fix the document.
Match the names with the driver.

Signed-off-by: default avatarIlkka Koskinen <ilkka@os.amperecomputing.com>
Reviewed-by: default avatarShuai Xue <xueshuai@linux.alibaba.com>
Link: https://lore.kernel.org/r/20241205061914.5568-3-ilkka@os.amperecomputing.com


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent e64c22cc

Documentation/admin-guide/perf/dwc_pcie_pmu.rst

+3 −3
Original line number Diff line number Diff line
@@ -60,7 +60,7 @@ description of available events and configuration options in sysfs, see 
The "format" directory describes format of the config fields of the

perf_event_attr structure. The "events" directory provides configuration

templates for all documented events.  For example,

"Rx_PCIe_TLP_Data_Payload" is an equivalent of "eventid=0x22,type=0x1".

"rx_pcie_tlp_data_payload" is an equivalent of "eventid=0x21,type=0x0".



The "perf list" command shall list the available events from sysfs, e.g.::
@@ -79,8 +79,8 @@ Example usage of counting PCIe RX TLP data payload (Units of bytes):: 


The average RX/TX bandwidth can be calculated using the following formula:



    PCIe RX Bandwidth = Rx_PCIe_TLP_Data_Payload / Measure_Time_Window

    PCIe TX Bandwidth = Tx_PCIe_TLP_Data_Payload / Measure_Time_Window

    PCIe RX Bandwidth = rx_pcie_tlp_data_payload / Measure_Time_Window

    PCIe TX Bandwidth = tx_pcie_tlp_data_payload / Measure_Time_Window



Lane Event Usage

-------------------------------