[PATCH v2 5/5] wifi: ath12k: Dump additional Tx PDEV HTT stats

[Ramya Gnanasekar]

On 5/28/2024 4:36 PM, Kalle Valo wrote:
> Ramya Gnanasekar <quic_rgnanase at quicinc.com> writes:
> 
>>>> +static inline void
>>>> +ath12k_htt_print_tx_pdev_mu_ppdu_dist_stats_tlv(const void *tag_buf,
>>>> +						struct debug_htt_stats_req *stats_req)
>>>> +{
>>>> + const struct ath12k_htt_tx_pdev_mu_ppdu_dist_stats_tlv
>>>> *htt_stats_buf = tag_buf;
>>>> +	char *mode;
>>>> +	u8 j, hw_mode, i, str_buf_len;
>>>> +	u8 *buf = stats_req->buf;
>>>> +	u32 len = stats_req->buf_len;
>>>> +	u32 buf_len = ATH12K_HTT_STATS_BUF_SIZE;
>>>> +	u32 stats_value;
>>>> +	u8 max_ppdu = ATH12K_HTT_STATS_MAX_NUM_MU_PPDU_PER_BURST;
>>>> +	u8 max_sched = ATH12K_HTT_STATS_MAX_NUM_SCHED_STATUS;
>>>> +	char str_buf[ATH12K_HTT_MAX_STRING_LEN];
>>>> +
>>>> +	hw_mode = le32_to_cpu(htt_stats_buf->hw_mode);
>>>> +
>>>> +	switch (hw_mode) {
>>>> +	case ATH12K_HTT_STATS_HWMODE_AC:
>>>> +		len += scnprintf(buf + len, buf_len - len,
>>>> +				 "HTT_TX_PDEV_MU_PPDU_DISTRIBUTION_STATS:\n");
>>>> +		mode = "ac";
>>>> +		break;
>>>> +	case ATH12K_HTT_STATS_HWMODE_AX:
>>>> +		mode = "ax";
>>>> +		break;
>>>> +	case ATH12K_HTT_STATS_HWMODE_BE:
>>>> +		mode = "be";
>>>> +		break;
>>>> +	default:
>>>> +		return;
>>>> +	}
>>>
>>> Why are we not adding "HTT_TX_PDEV_MU_PPDU_DISTRIBUTION_STATS:\n" with
>>> ax and be modes?
>>>
>> Sorry for the delayed response. I was on OoO for a week.
> 
> No worries.
> 
>> We will receive this TLV for each hw modes. Since
>> "HTT_TX_PDEV_MU_PPDU_DISTRIBUTION_STATS:\n" is header and it would be
>> suffice to print it once, hence added it inside hw mode ac which will be
>> the first hw mode integrated inside the TLV.
> 
> I would have expected that we print that outside of
> ath12k_htt_print_tx_pdev_mu_ppdu_dist_stats_tlv(), before the function
> is called at all.
> 

Function itself will be called more than once. The overall HTT TLV will
be integrated with tag HTT_STATS_MU_PPDU_DIST_TAG (129) for all the hw
modes separately.