wifi: ath12k: Support Pdev OBSS Stats

Add support to request pdev OBSS stats from firmware through stats
type 23. These stats give information about PPDUs transmitted or
tried to be transmitted in Spatial Reuse Groups(SRG), Parameterized
Spatial Reuse(PSR) and non-PSR groups.

Sample output:
-------------
echo 23 > /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_PDEV_OBSS_PD_STATS_TLV:
num_spatial_reuse_tx = 0
num_spatial_reuse_opportunities = 0
num_non_srg_opportunities = 0
num_non_srg_ppdu_tried = 0
.....

HTT_PDEV_OBSS_PD_PER_AC_STATS:
Access Category 0 (best effort)
num_non_srg_ppdu_tried = 0
num_non_srg_ppdu_success = 0
num_srg_ppdu_tried = 0
num_srg_ppdu_success = 0

Access Category 1 (background)
num_non_srg_ppdu_tried = 0
num_non_srg_ppdu_success = 0
num_srg_ppdu_tried = 0
num_srg_ppdu_success = 0
.....

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00214-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

Signed-off-by: Dinesh Karthikeyan <quic_dinek@quicinc.com>
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://patch.msgid.link/20241005104206.3327143-1-quic_rdevanat@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>

2 files changed, 92 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
index bf6864711980..d890679a3f16 100644
--- a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
+++ b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
@@ -2437,6 +2437,71 @@ ath12k_htt_print_pdev_stats_cca_counters_tlv(const void *tag_buf, u16 tag_len,
 	stats_req->buf_len = len;
 }
 
+static void
+ath12k_htt_print_pdev_obss_pd_stats_tlv(const void *tag_buf, u16 tag_len,
+					struct debug_htt_stats_req *stats_req)
+{
+	const struct ath12k_htt_pdev_obss_pd_stats_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;
+	u8 i;
+	static const char *access_cat_names[ATH12K_HTT_NUM_AC_WMM] = {"best effort",
+								      "background",
+								      "video", "voice"};
+
+	if (tag_len < sizeof(*htt_stats_buf))
+		return;
+
+	len += scnprintf(buf + len, buf_len - len, "HTT_PDEV_OBSS_PD_STATS_TLV:\n");
+	len += scnprintf(buf + len, buf_len - len, "num_spatial_reuse_tx = %u\n",
+			 le32_to_cpu(htt_stats_buf->num_sr_tx_transmissions));
+	len += scnprintf(buf + len, buf_len - len,
+			 "num_spatial_reuse_opportunities = %u\n",
+			 le32_to_cpu(htt_stats_buf->num_spatial_reuse_opportunities));
+	len += scnprintf(buf + len, buf_len - len, "num_non_srg_opportunities = %u\n",
+			 le32_to_cpu(htt_stats_buf->num_non_srg_opportunities));
+	len += scnprintf(buf + len, buf_len - len, "num_non_srg_ppdu_tried = %u\n",
+			 le32_to_cpu(htt_stats_buf->num_non_srg_ppdu_tried));
+	len += scnprintf(buf + len, buf_len - len, "num_non_srg_ppdu_success = %u\n",
+			 le32_to_cpu(htt_stats_buf->num_non_srg_ppdu_success));
+	len += scnprintf(buf + len, buf_len - len, "num_srg_opportunities = %u\n",
+			 le32_to_cpu(htt_stats_buf->num_srg_opportunities));
+	len += scnprintf(buf + len, buf_len - len, "num_srg_ppdu_tried = %u\n",
+			 le32_to_cpu(htt_stats_buf->num_srg_ppdu_tried));
+	len += scnprintf(buf + len, buf_len - len, "num_srg_ppdu_success = %u\n",
+			 le32_to_cpu(htt_stats_buf->num_srg_ppdu_success));
+	len += scnprintf(buf + len, buf_len - len, "num_psr_opportunities = %u\n",
+			 le32_to_cpu(htt_stats_buf->num_psr_opportunities));
+	len += scnprintf(buf + len, buf_len - len, "num_psr_ppdu_tried = %u\n",
+			 le32_to_cpu(htt_stats_buf->num_psr_ppdu_tried));
+	len += scnprintf(buf + len, buf_len - len, "num_psr_ppdu_success = %u\n",
+			 le32_to_cpu(htt_stats_buf->num_psr_ppdu_success));
+	len += scnprintf(buf + len, buf_len - len, "min_duration_check_flush_cnt = %u\n",
+			 le32_to_cpu(htt_stats_buf->num_obss_min_dur_check_flush_cnt));
+	len += scnprintf(buf + len, buf_len - len, "sr_ppdu_abort_flush_cnt = %u\n\n",
+			 le32_to_cpu(htt_stats_buf->num_sr_ppdu_abort_flush_cnt));
+
+	len += scnprintf(buf + len, buf_len - len, "HTT_PDEV_OBSS_PD_PER_AC_STATS:\n");
+	for (i = 0; i < ATH12K_HTT_NUM_AC_WMM; i++) {
+		len += scnprintf(buf + len, buf_len - len, "Access Category %u (%s)\n",
+				 i, access_cat_names[i]);
+		len += scnprintf(buf + len, buf_len - len,
+				 "num_non_srg_ppdu_tried = %u\n",
+				 le32_to_cpu(htt_stats_buf->num_non_srg_tried_per_ac[i]));
+		len += scnprintf(buf + len, buf_len - len,
+				 "num_non_srg_ppdu_success = %u\n",
+				 le32_to_cpu(htt_stats_buf->num_non_srg_success_ac[i]));
+		len += scnprintf(buf + len, buf_len - len, "num_srg_ppdu_tried = %u\n",
+				 le32_to_cpu(htt_stats_buf->num_srg_tried_per_ac[i]));
+		len += scnprintf(buf + len, buf_len - len,
+				 "num_srg_ppdu_success = %u\n\n",
+				 le32_to_cpu(htt_stats_buf->num_srg_success_per_ac[i]));
+	}
+
+	stats_req->buf_len = len;
+}
+
 static int ath12k_dbg_htt_ext_stats_parse(struct ath12k_base *ab,
 					  u16 tag, u16 len, const void *tag_buf,
 					  void *user_data)
@@ -2607,6 +2672,9 @@ static int ath12k_dbg_htt_ext_stats_parse(struct ath12k_base *ab,
 	case HTT_STATS_PDEV_CCA_COUNTERS_TAG:
 		ath12k_htt_print_pdev_stats_cca_counters_tlv(tag_buf, len, stats_req);
 		break;
+	case HTT_STATS_PDEV_OBSS_PD_TAG:
+		ath12k_htt_print_pdev_obss_pd_stats_tlv(tag_buf, len, stats_req);
+		break;
 	default:
 		break;
 	}
diff --git a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h
index b37ba1256ce5..597334830d02 100644
--- a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h
+++ b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h
@@ -134,6 +134,7 @@ enum ath12k_dbg_htt_ext_stats_type {
 	ATH12K_DBG_HTT_EXT_STATS_SFM_INFO		= 16,
 	ATH12K_DBG_HTT_EXT_STATS_PDEV_TX_MU		= 17,
 	ATH12K_DBG_HTT_EXT_STATS_PDEV_CCA_STATS		= 19,
+	ATH12K_DBG_HTT_EXT_STATS_PDEV_OBSS_PD_STATS	= 23,
 
 	/* keep this last */
 	ATH12K_DBG_HTT_NUM_EXT_STATS,
@@ -184,6 +185,7 @@ enum ath12k_dbg_htt_tlv_tag {
 	HTT_STATS_TX_PDEV_MPDU_STATS_TAG		= 74,
 	HTT_STATS_SCHED_TXQ_SCHED_ORDER_SU_TAG		= 86,
 	HTT_STATS_SCHED_TXQ_SCHED_INELIGIBILITY_TAG	= 87,
+	HTT_STATS_PDEV_OBSS_PD_TAG			= 88,
 	HTT_STATS_HW_WAR_TAG				= 89,
 	HTT_STATS_SCHED_TXQ_SUPERCYCLE_TRIGGER_TAG	= 100,
 	HTT_STATS_PDEV_CTRL_PATH_TX_STATS_TAG		= 102,
@@ -1024,4 +1026,26 @@ struct ath12k_htt_pdev_cca_stats_hist_v1_tlv {
 	__le32 collection_interval;
 } __packed;
 
+struct ath12k_htt_pdev_obss_pd_stats_tlv {
+	__le32 num_obss_tx_ppdu_success;
+	__le32 num_obss_tx_ppdu_failure;
+	__le32 num_sr_tx_transmissions;
+	__le32 num_spatial_reuse_opportunities;
+	__le32 num_non_srg_opportunities;
+	__le32 num_non_srg_ppdu_tried;
+	__le32 num_non_srg_ppdu_success;
+	__le32 num_srg_opportunities;
+	__le32 num_srg_ppdu_tried;
+	__le32 num_srg_ppdu_success;
+	__le32 num_psr_opportunities;
+	__le32 num_psr_ppdu_tried;
+	__le32 num_psr_ppdu_success;
+	__le32 num_non_srg_tried_per_ac[ATH12K_HTT_NUM_AC_WMM];
+	__le32 num_non_srg_success_ac[ATH12K_HTT_NUM_AC_WMM];
+	__le32 num_srg_tried_per_ac[ATH12K_HTT_NUM_AC_WMM];
+	__le32 num_srg_success_per_ac[ATH12K_HTT_NUM_AC_WMM];
+	__le32 num_obss_min_dur_check_flush_cnt;
+	__le32 num_sr_ppdu_abort_flush_cnt;
+} __packed;
+
 #endif