[PATCH v3 3/4] wifi: ath12k: Support SoC Common Stats

[Jeff Johnson]

On 11/4/2024 8:54 PM, Roopni Devanathan wrote:
> From: Dinesh Karthikeyan <quic_dinek at quicinc.com>
> 
> Add support to request SoC stat from firmware through HTT stat
> type 38. This stat gives drop count of SoC.
> 
> Note: MCC firmware version -
> WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4 does not
> support tag HTT_STATS_SOC_TXRX_STATS_COMMON_TAG(125).
> 
> Sample output:
> -------------
> echo 38 > /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_SOC_COMMON_STATS_TLV:
> soc_drop_count = 0x0000000000000000
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
> 
> Signed-off-by: Dinesh Karthikeyan <quic_dinek at quicinc.com>
> Signed-off-by: Roopni Devanathan <quic_rdevanat at quicinc.com>
> ---
>  .../wireless/ath/ath12k/debugfs_htt_stats.c   | 23 +++++++++++++++++++
>  .../wireless/ath/ath12k/debugfs_htt_stats.h   |  7 ++++++
>  2 files changed, 30 insertions(+)
> 
> diff --git a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
> index 732e600d33fa..8f89ba2db8c7 100644
> --- a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
> +++ b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
> @@ -2859,6 +2859,26 @@ ath12k_htt_print_phy_tpc_stats_tlv(const void *tag_buf, u16 tag_len,
>  	stats_req->buf_len = len;
>  }
>  
> +static void
> +ath12k_htt_print_soc_txrx_stats_common_tlv(const void *tag_buf, u16 tag_len,
> +					   struct debug_htt_stats_req *stats_req)
> +{
> +	const struct ath12k_htt_t2h_soc_txrx_stats_common_tlv *htt_stats_buf = tag_buf;
> +	u8 *buf = stats_req->buf;
> +	u32 len = stats_req->buf_len;
> +	u32 buf_len = ATH12K_HTT_STATS_BUF_SIZE;
> +
> +	if (tag_len < sizeof(*htt_stats_buf))
> +		return;
> +
> +	len += scnprintf(buf + len, buf_len - len, "HTT_SOC_COMMON_STATS_TLV:\n");
> +	len += scnprintf(buf + len, buf_len - len, "soc_drop_count = 0x%08x%08x\n\n",
> +			 le32_to_cpu(htt_stats_buf->inv_peers_msdu_drop_count_hi),
> +			 le32_to_cpu(htt_stats_buf->inv_peers_msdu_drop_count_lo));

perhaps use ath12k_le32hilo_to_u64() to convert to u64 and then print in
decimal instead of hex? just a suggestion, no need to respin if you disagree

> +
> +	stats_req->buf_len = len;
> +}
> +
>  static void
>  ath12k_htt_print_dmac_reset_stats_tlv(const void *tag_buf, u16 tag_len,
>  				      struct debug_htt_stats_req *stats_req)
> @@ -3204,6 +3224,9 @@ static int ath12k_dbg_htt_ext_stats_parse(struct ath12k_base *ab,
>  	case HTT_STATS_PHY_TPC_STATS_TAG:
>  		ath12k_htt_print_phy_tpc_stats_tlv(tag_buf, len, stats_req);
>  		break;
> +	case HTT_STATS_SOC_TXRX_STATS_COMMON_TAG:
> +		ath12k_htt_print_soc_txrx_stats_common_tlv(tag_buf, len, stats_req);
> +		break;
>  	case HTT_STATS_DMAC_RESET_STATS_TAG:
>  		ath12k_htt_print_dmac_reset_stats_tlv(tag_buf, len, stats_req);
>  		break;
> diff --git a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h
> index 10d7ca9c02f4..c07b60636c22 100644
> --- a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h
> +++ b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h
> @@ -137,6 +137,7 @@ enum ath12k_dbg_htt_ext_stats_type {
>  	ATH12K_DBG_HTT_EXT_STATS_PDEV_OBSS_PD_STATS	= 23,
>  	ATH12K_DBG_HTT_EXT_STATS_DLPAGER_STATS		= 36,
>  	ATH12K_DBG_HTT_EXT_PHY_COUNTERS_AND_PHY_STATS	= 37,
> +	ATH12K_DBG_HTT_EXT_VDEVS_TXRX_STATS		= 38,
>  	ATH12K_DBG_HTT_EXT_STATS_SOC_ERROR		= 45,
>  	ATH12K_DBG_HTT_EXT_STATS_PDEV_SCHED_ALGO	= 49,
>  	ATH12K_DBG_HTT_EXT_STATS_MANDATORY_MUOFDMA	= 51,
> @@ -201,6 +202,7 @@ enum ath12k_dbg_htt_tlv_tag {
>  	HTT_STATS_PHY_STATS_TAG				= 122,
>  	HTT_STATS_PHY_RESET_COUNTERS_TAG		= 123,
>  	HTT_STATS_PHY_RESET_STATS_TAG			= 124,
> +	HTT_STATS_SOC_TXRX_STATS_COMMON_TAG		= 125,
>  	HTT_STATS_MU_PPDU_DIST_TAG			= 129,
>  	HTT_STATS_TX_PDEV_MUMIMO_GRP_STATS_TAG		= 130,
>  	HTT_STATS_TX_PDEV_RATE_STATS_BE_OFDMA_TAG	= 135,
> @@ -1183,6 +1185,11 @@ struct ath12k_htt_phy_tpc_stats_tlv {
>  	__le32 sub_band_txpower[ATH12K_HTT_MAX_CH_PWR_INFO_SIZE];
>  } __packed;
>  
> +struct ath12k_htt_t2h_soc_txrx_stats_common_tlv {
> +	__le32 inv_peers_msdu_drop_count_hi;
> +	__le32 inv_peers_msdu_drop_count_lo;
> +} __packed;
> +
>  struct ath12k_htt_dmac_reset_stats_tlv {
>  	__le32 reset_count;
>  	__le32 reset_time_lo_ms;