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| author |   Ilkka Koskinen <ilkka@os.amperecomputing.com> | 2024-12-05 06:19:14 +0000 |
|---|---|---|
| committer |   Will Deacon <will@kernel.org> | 2024-12-09 15:45:21 +0000 |
| commit | 8632306e093c56508aee876dd8855d53399aa83b (patch) | |
| tree | 4de934e8b4c425d13ea9f2c263721efc412edc81 | |
| parent | perf/dwc_pcie: Fix the event numbers (diff) | |
| download | wireguard-linux-8632306e093c56508aee876dd8855d53399aa83b.tar.xz wireguard-linux-8632306e093c56508aee876dd8855d53399aa83b.zip | |
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: 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>
Diffstat (limited to '')
| -rw-r--r-- | Documentation/admin-guide/perf/dwc_pcie_pmu.rst | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/admin-guide/perf/dwc_pcie_pmu.rst b/Documentation/admin-guide/perf/dwc_pcie_pmu.rst index 39b8e1fdd0cd..cb376f335f40 100644 --- a/Documentation/admin-guide/perf/dwc_pcie_pmu.rst +++ b/Documentation/admin-guide/perf/dwc_pcie_pmu.rst @@ -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 ------------------------------- |