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From:   Maharaja Kennadyrajan <quic_mkenna@quicinc.com>
To:     <ath11k@lists.infradead.org>
CC:     <linux-wireless@vger.kernel.org>,
        Nidhi Jain <quic_nidhjain@quicinc.com>,
        Maharaja Kennadyrajan <quic_mkenna@quicinc.com>
Subject: [PATCH] wifi: ath11k: Add HTT stats for PHY reset case
Date:   Wed, 17 May 2023 19:42:42 +0530
Message-ID: <20230517141242.2754293-1-quic_mkenna@quicinc.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
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Precedence: bulk

From: Nidhi Jain <quic_nidhjain@quicinc.com>

New HTT stats are added with stats type 37 to
provide PHY reset stats and PHY reset counter stats.

PHY reset stats are used to display the current
PHY-related operation information such as band, CCA
threshold, current operating channel etc.,

PHY reset counter stats are used to display the
PHY reset counter values like calibration counts,
temperature based recalibration counts etc.,

Usage:
echo 37 > /sys/kernel/debug/ieee80211/phyX/ath11k/htt_stats_type
cat /sys/kernel/debug/ieee80211/phyx/ath11k/htt_stats

Output:

HTT_PHY_RESET_STATS_TLV:
pdev_id = 0
chan_mhz = 5180
chan_band_center_freq1 = 5210
chan_band_center_freq2 = 0
chan_phy_mode = 18
chan_flags = 0x8
chan_num = 36
reset_cause = 0x50000
prev_reset_cause = 0x50000
phy_warm_reset_src = 0x0
rx_gain_tbl_mode = 0
xbar_val = 0xfac688
force_calibration = 0
phyrf_mode = 0
phy_homechan = 0
phy_tx_ch_mask = 0x3
phy_rx_ch_mask = 0x3
phybb_ini_mask = 0x5
phyrf_ini_mask = 0x0
phy_dfs_en_mask = 0x0
phy_sscan_en_mask = 0x0
phy_synth_sel_mask = 0x0
phy_adfs_freq = 0
cck_fir_settings = 0x0
phy_dyn_pri_chan = 6
cca_thresh = 0x26232020
dyn_cca_status = 0
rxdesense_thresh_hw = 0xcfe0afe
rxdesense_thresh_sw = 0xcfe0afe

HTT_PHY_RESET_COUNTERS_TLV:
pdev_id = 0
cf_active_low_fail_cnt = 0
cf_active_low_pass_cnt = 0
phy_off_through_vreg_cnt = 0
force_calibration_cnt = 0
rf_mode_switch_phy_off_cnt = 0

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1

Signed-off-by: Nidhi Jain <quic_nidhjain@quicinc.com>
Signed-off-by: Maharaja Kennadyrajan <quic_mkenna@quicinc.com>
---
 .../wireless/ath/ath11k/debugfs_htt_stats.c   | 114 ++++++++++++++++++
 .../wireless/ath/ath11k/debugfs_htt_stats.h   |  43 +++++++
 2 files changed, 157 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/debugfs_htt_stats.c b/drivers/net/wireless/ath/ath11k/debugfs_htt_stats.c
index b3efca6bd7dd..0207fc4910f3 100644
--- a/drivers/net/wireless/ath/ath11k/debugfs_htt_stats.c
+++ b/drivers/net/wireless/ath/ath11k/debugfs_htt_stats.c
@@ -4011,6 +4011,114 @@ void htt_print_phy_stats_tlv(const void *tag_buf,
 	stats_req->buf_len = len;
 }
 
+static inline void
+htt_print_phy_reset_counters_tlv(const void *tag_buf,
+				 u16 tag_len,
+				 struct debug_htt_stats_req *stats_req)
+{
+	const struct htt_phy_reset_counters_tlv *htt_stats_buf = tag_buf;
+	u8 *buf = stats_req->buf;
+	u32 len = stats_req->buf_len;
+	u32 buf_len = ATH11K_HTT_STATS_BUF_SIZE;
+
+	if (tag_len < sizeof(*htt_stats_buf))
+		return;
+
+	len += scnprintf(buf + len, buf_len - len, "HTT_PHY_RESET_COUNTERS_TLV:\n");
+
+	len += scnprintf(buf + len, buf_len - len, "pdev_id = %u\n",
+			 htt_stats_buf->pdev_id);
+	len += scnprintf(buf + len, buf_len - len, "cf_active_low_fail_cnt = %u\n",
+			 htt_stats_buf->cf_active_low_fail_cnt);
+	len += scnprintf(buf + len, buf_len - len, "cf_active_low_pass_cnt = %u\n",
+			 htt_stats_buf->cf_active_low_pass_cnt);
+	len += scnprintf(buf + len, buf_len - len, "phy_off_through_vreg_cnt = %u\n",
+			 htt_stats_buf->phy_off_through_vreg_cnt);
+	len += scnprintf(buf + len, buf_len - len, "force_calibration_cnt = %u\n",
+			 htt_stats_buf->force_calibration_cnt);
+	len += scnprintf(buf + len, buf_len - len, "rf_mode_switch_phy_off_cnt = %u\n",
+			 htt_stats_buf->rf_mode_switch_phy_off_cnt);
+
+	stats_req->buf_len = len;
+}
+
+static inline void
+htt_print_phy_reset_stats_tlv(const void *tag_buf,
+			      u16 tag_len,
+			      struct debug_htt_stats_req *stats_req)
+{
+	const struct htt_phy_reset_stats_tlv *htt_stats_buf = tag_buf;
+	u8 *buf = stats_req->buf;
+	u32 len = stats_req->buf_len;
+	u32 buf_len = ATH11K_HTT_STATS_BUF_SIZE;
+
+	if (tag_len < sizeof(*htt_stats_buf))
+		return;
+
+	len += scnprintf(buf + len, buf_len - len, "HTT_PHY_RESET_STATS_TLV:\n");
+
+	len += scnprintf(buf + len, buf_len - len, "pdev_id = %u\n",
+			 htt_stats_buf->pdev_id);
+	len += scnprintf(buf + len, buf_len - len, "chan_mhz = %u\n",
+			 htt_stats_buf->chan_mhz);
+	len += scnprintf(buf + len, buf_len - len, "chan_band_center_freq1 = %u\n",
+			 htt_stats_buf->chan_band_center_freq1);
+	len += scnprintf(buf + len, buf_len - len, "chan_band_center_freq2 = %u\n",
+			 htt_stats_buf->chan_band_center_freq2);
+	len += scnprintf(buf + len, buf_len - len, "chan_phy_mode = %u\n",
+			 htt_stats_buf->chan_phy_mode);
+	len += scnprintf(buf + len, buf_len - len, "chan_flags = 0x%0x\n",
+			 htt_stats_buf->chan_flags);
+	len += scnprintf(buf + len, buf_len - len, "chan_num = %u\n",
+			 htt_stats_buf->chan_num);
+	len += scnprintf(buf + len, buf_len - len, "reset_cause = 0x%0x\n",
+			 htt_stats_buf->reset_cause);
+	len += scnprintf(buf + len, buf_len - len, "prev_reset_cause = 0x%0x\n",
+			 htt_stats_buf->prev_reset_cause);
+	len += scnprintf(buf + len, buf_len - len, "phy_warm_reset_src = 0x%0x\n",
+			 htt_stats_buf->phy_warm_reset_src);
+	len += scnprintf(buf + len, buf_len - len, "rx_gain_tbl_mode = %d\n",
+			 htt_stats_buf->rx_gain_tbl_mode);
+	len += scnprintf(buf + len, buf_len - len, "xbar_val = 0x%0x\n",
+			 htt_stats_buf->xbar_val);
+	len += scnprintf(buf + len, buf_len - len, "force_calibration = %u\n",
+			 htt_stats_buf->force_calibration);
+	len += scnprintf(buf + len, buf_len - len, "phyrf_mode = %u\n",
+			 htt_stats_buf->phyrf_mode);
+	len += scnprintf(buf + len, buf_len - len, "phy_homechan = %u\n",
+			 htt_stats_buf->phy_homechan);
+	len += scnprintf(buf + len, buf_len - len, "phy_tx_ch_mask = 0x%0x\n",
+			 htt_stats_buf->phy_tx_ch_mask);
+	len += scnprintf(buf + len, buf_len - len, "phy_rx_ch_mask = 0x%0x\n",
+			 htt_stats_buf->phy_rx_ch_mask);
+	len += scnprintf(buf + len, buf_len - len, "phybb_ini_mask = 0x%0x\n",
+			 htt_stats_buf->phybb_ini_mask);
+	len += scnprintf(buf + len, buf_len - len, "phyrf_ini_mask = 0x%0x\n",
+			 htt_stats_buf->phyrf_ini_mask);
+	len += scnprintf(buf + len, buf_len - len, "phy_dfs_en_mask = 0x%0x\n",
+			 htt_stats_buf->phy_dfs_en_mask);
+	len += scnprintf(buf + len, buf_len - len, "phy_sscan_en_mask = 0x%0x\n",
+			 htt_stats_buf->phy_sscan_en_mask);
+	len += scnprintf(buf + len, buf_len - len, "phy_synth_sel_mask = 0x%0x\n",
+			 htt_stats_buf->phy_synth_sel_mask);
+	len += scnprintf(buf + len, buf_len - len, "phy_adfs_freq = %u\n",
+			 htt_stats_buf->phy_adfs_freq);
+	len += scnprintf(buf + len, buf_len - len, "cck_fir_settings = 0x%0x\n",
+			 htt_stats_buf->cck_fir_settings);
+	len += scnprintf(buf + len, buf_len - len, "phy_dyn_pri_chan = %u\n",
+			 htt_stats_buf->phy_dyn_pri_chan);
+	len += scnprintf(buf + len, buf_len - len, "cca_thresh = 0x%0x\n",
+			 htt_stats_buf->cca_thresh);
+	len += scnprintf(buf + len, buf_len - len, "dyn_cca_status = %u\n",
+			 htt_stats_buf->dyn_cca_status);
+	len += scnprintf(buf + len, buf_len - len, "rxdesense_thresh_hw = 0x%x\n",
+			 htt_stats_buf->rxdesense_thresh_hw);
+	len += scnprintf(buf + len, buf_len - len, "rxdesense_thresh_sw = 0x%x\n",
+			 htt_stats_buf->rxdesense_thresh_sw);
+
+	stats_req->buf_len = len;
+}
+
 static inline
 void htt_print_peer_ctrl_path_txrx_stats_tlv(const void *tag_buf,
 					     struct debug_htt_stats_req *stats_req)
@@ -4425,6 +4533,12 @@ static int ath11k_dbg_htt_ext_stats_parse(struct ath11k_base *ab,
 	case HTT_STATS_PHY_STATS_TAG:
 		htt_print_phy_stats_tlv(tag_buf, stats_req);
 		break;
+	case HTT_STATS_PHY_RESET_COUNTERS_TAG:
+		htt_print_phy_reset_counters_tlv(tag_buf, len, stats_req);
+		break;
+	case HTT_STATS_PHY_RESET_STATS_TAG:
+		htt_print_phy_reset_stats_tlv(tag_buf, len, stats_req);
+		break;
 	case HTT_STATS_PEER_CTRL_PATH_TXRX_STATS_TAG:
 		htt_print_peer_ctrl_path_txrx_stats_tlv(tag_buf, stats_req);
 		break;
diff --git a/drivers/net/wireless/ath/ath11k/debugfs_htt_stats.h b/drivers/net/wireless/ath/ath11k/debugfs_htt_stats.h
index 0bbd58a380de..96219301f05b 100644
--- a/drivers/net/wireless/ath/ath11k/debugfs_htt_stats.h
+++ b/drivers/net/wireless/ath/ath11k/debugfs_htt_stats.h
@@ -111,6 +111,8 @@ enum htt_tlv_tag_t {
 	HTT_STATS_TXBF_OFDMA_STEER_STATS_TAG		    = 116,
 	HTT_STATS_PHY_COUNTERS_TAG			    = 121,
 	HTT_STATS_PHY_STATS_TAG				    = 122,
+	HTT_STATS_PHY_RESET_COUNTERS_TAG		    = 123,
+	HTT_STATS_PHY_RESET_STATS_TAG			    = 124,
 
 	HTT_STATS_MAX_TAG,
 };
@@ -1964,6 +1966,47 @@ struct htt_phy_stats_tlv {
 	u32 fw_run_time;
 };
 
+struct htt_phy_reset_counters_tlv {
+	u32 pdev_id;
+	u32 cf_active_low_fail_cnt;
+	u32 cf_active_low_pass_cnt;
+	u32 phy_off_through_vreg_cnt;
+	u32 force_calibration_cnt;
+	u32 rf_mode_switch_phy_off_cnt;
+};
+
+struct htt_phy_reset_stats_tlv {
+	u32 pdev_id;
+	u32 chan_mhz;
+	u32 chan_band_center_freq1;
+	u32 chan_band_center_freq2;
+	u32 chan_phy_mode;
+	u32 chan_flags;
+	u32 chan_num;
+	u32 reset_cause;
+	u32 prev_reset_cause;
+	u32 phy_warm_reset_src;
+	u32 rx_gain_tbl_mode;
+	u32 xbar_val;
+	u32 force_calibration;
+	u32 phyrf_mode;
+	u32 phy_homechan;
+	u32 phy_tx_ch_mask;
+	u32 phy_rx_ch_mask;
+	u32 phybb_ini_mask;
+	u32 phyrf_ini_mask;
+	u32 phy_dfs_en_mask;
+	u32 phy_sscan_en_mask;
+	u32 phy_synth_sel_mask;
+	u32 phy_adfs_freq;
+	u32 cck_fir_settings;
+	u32 phy_dyn_pri_chan;
+	u32 cca_thresh;
+	u32 dyn_cca_status;
+	u32 rxdesense_thresh_hw;
+	u32 rxdesense_thresh_sw;
+};
+
 struct htt_peer_ctrl_path_txrx_stats_tlv {
 	/* peer mac address */
 	u8 peer_mac_addr[ETH_ALEN];
-- 
2.25.1