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Documentation: dwc_pcie_pmu: Fix the mnemonics and eventid

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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: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Reviewed-by: Shuai Xue <xueshuai@linux.alibaba.com>
Link: https://lore.kernel.org/r/20241205061914.5568-3-ilkka@os.amperecomputing.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Ilkka Koskinen 2024-12-05 06:19:14 +00:00 committed by Will Deacon
parent e64c22cc2e
commit 8632306e09
1 changed files with 3 additions and 3 deletions
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6
Documentation/admin-guide/perf/dwc_pcie_pmu.rst
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@ -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
-------------------------------