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

[Roopni Devanathan]

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 0476a8f6c6bc..ba728918a60b 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));
+
+	stats_req->buf_len = len;
+}
+
 static void
 ath12k_htt_print_ast_entry_tlv(const void *tag_buf, u16 tag_len,
 			       struct debug_htt_stats_req *stats_req)
@@ -3439,6 +3459,9 @@ 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_AST_ENTRY_TAG:
 		ath12k_htt_print_ast_entry_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 877c619093f2..9f36d1d4508e 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_AST_ENTRIES			= 41,
 	ATH12K_DBG_HTT_EXT_STATS_SOC_ERROR		= 45,
 	ATH12K_DBG_HTT_DBG_PDEV_PUNCTURE_STATS		= 46,
@@ -204,6 +205,7 @@ 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_AST_ENTRY_TAG				= 132,
@@ -1189,6 +1191,11 @@ 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;
-- 
2.25.1