[PATCH v6 1/4] lib: add generic support for reading PMU events

[Morten Brørup]

> From: Tomasz Duszynski [mailto:tduszynski at marvell.com]
> Sent: Friday, 20 January 2023 00.39
> 
> Add support for programming PMU counters and reading their values
> in runtime bypassing kernel completely.
> 
> This is especially useful in cases where CPU cores are isolated
> (nohz_full) i.e run dedicated tasks. In such cases one cannot use
> standard perf utility without sacrificing latency and performance.
> 
> Signed-off-by: Tomasz Duszynski <tduszynski at marvell.com>
> ---

If you insist on passing lcore_id around as a function parameter, the function description must mention that the lcore_id parameter must be set to rte_lcore_id() for the functions where this is a requirement, including all functions that use those functions.

Alternatively, follow my previous suggestion: Omit the lcore_id function parameter, and use rte_lcore_id() instead.