[PATCH v8 2/8] ethdev: add telemetry cmd for registers

[fengchengwen]

Acked-by: Chengwen Feng <fengchengwen at huawei.com>

On 2024/9/25 14:40, Jie Hai wrote:
> This patch adds a telemetry command for registers dump,
> and supports obtaining the registers of a specified module.
> 
> In one way, the number of registers that can be exported
> is limited by the number of elements carried by dict and
> container. In another way, the length of the string
> exported by telemetry is limited by MAX_OUTPUT_LEN.
> Therefore, when the number of registers to be exported
> exceeds, some information will be lost. Warn on the former
> case.
> 
> An example usage is shown below:
> --> /ethdev/regs,0,ring
> {
>   "/ethdev/regs": {
>     "registers_length": 318,
>     "registers_width": 4,
>     "register_offset": "0x0",
>     "version": "0x1140011",
>     "group_0": {
>       "Q0_ring_rx_bd_num": "0x0",
>       "Q0_ring_rx_bd_len": "0x0",
>       ...
>       },
>     "group_1": {
>         ...
>     },
>     ...
> }
> 
> Signed-off-by: Jie Hai <haijie1 at huawei.com>
> Reviewed-by: Ferruh Yigit <ferruh.yigit at amd.com>