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

[Kalle Valo <kvalo@kernel.org>]

Ramya Gnanasekar <quic_rgnanase@quicinc.com> writes:

> Support to dump additional Tx PDEV stats through HTT stats debugfs.
> Following stats dump are supported:
>         1. PDEV control path stat to dump Tx management frame count
>         2. Tx PDEV SIFS histogram stats
>         3. Tx MU MIMO PPDU stats for 802.11ac, 802.11ax and 802.11be
>
> Sample Output:
> --------------
> echo 1 > /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats_type
> cat /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/htt_stats
> HTT_TX_PDEV_STATS_CMN_TLV:
> mac_id = 0
> comp_delivered = 0
> self_triggers = 13
> ......
> ......
> HTT_TX_PDEV_STATS_CTRL_PATH_TX_STATS:
> fw_tx_mgmt_subtype =  0:1, 1:0, 2:0, 3:0, 4:38, 5:0, 6:0, 7:0, 8:0, 9:0, 10:0, 11:1, 12:0, 13:7, 14:0, 15:0,
>
> HTT_TX_PDEV_STATS_SIFS_HIST_TLV:
> sifs_hist_status =  0:237, 1:185, 2:1, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0,
>
> HTT_TX_PDEV_MU_PPDU_DISTRIBUTION_STATS:
> ac_mu_mimo_num_seq_posted_nr4 = 0
> ac_mu_mimo_num_ppdu_posted_per_burst_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0,
> ac_mu_mimo_num_ppdu_completed_per_burst_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0,
> ac_mu_mimo_num_seq_term_status_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0,
>
> ac_mu_mimo_num_seq_posted_nr8 = 0
> ac_mu_mimo_num_ppdu_posted_per_burst_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0,
> ac_mu_mimo_num_ppdu_completed_per_burst_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0,
> ac_mu_mimo_num_seq_term_status_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0,
>
> ax_mu_mimo_num_seq_posted_nr4 = 0
> ax_mu_mimo_num_ppdu_posted_per_burst_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0,
> ax_mu_mimo_num_ppdu_completed_per_burst_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0,
> ax_mu_mimo_num_seq_term_status_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0,
>
> ax_mu_mimo_num_seq_posted_nr8 = 0
> ax_mu_mimo_num_ppdu_posted_per_burst_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0,
> ax_mu_mimo_num_ppdu_completed_per_burst_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0,
> ax_mu_mimo_num_seq_term_status_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0,
>
> be_mu_mimo_num_seq_posted_nr4 = 0
> be_mu_mimo_num_ppdu_posted_per_burst_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0,
> be_mu_mimo_num_ppdu_completed_per_burst_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0,
> be_mu_mimo_num_seq_term_status_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0,
>
> be_mu_mimo_num_seq_posted_nr8 = 0
> be_mu_mimo_num_ppdu_posted_per_burst_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0,
> be_mu_mimo_num_ppdu_completed_per_burst_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0,
> be_mu_mimo_num_seq_term_status_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0,
>
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
>
> Signed-off-by: Ramya Gnanasekar <quic_rgnanase@quicinc.com>

[...]

> +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?

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