ath11k: add HTT stats support for new stats

Add HTT stats support for,

29-ATH11K_DBG_HTT_EXT_STATS_PEER_CTRL_PATH_TXRX_STATS:
Used to dump the control path txrx stats for each connected peer.
Usage:
echo 29 > /sys/kernel/debug/ieee80211/phyx/ath11k/htt_stats_type
cat /sys/kernel/debug/ieee80211/phyx/netdev\:wlan0/stations/
<sta mac>/htt_peer_stats.

31-ATH11K_DBG_HTT_EXT_STATS_PDEV_TX_RATE_TXBF_STATS:
Used to dump the per pdev tx rate txbf stats.
Usage:
echo 31 > /sys/kernel/debug/ieee80211/phyx/ath11k/htt_stats_type
cat /sys/kernel/debug/ieee80211/phyx/ath11k/htt_stats

32-ATH11k_DBG_HTT_EXT_STATS_TXBF_OFDMA:
Used to dump the TXBF ofdma stats for all ofdma users.
Usage:
echo 32 > /sys/kernel/debug/ieee80211/phyx/ath11k/htt_stats_type
cat /sys/kernel/debug/ieee80211/phyx/ath11k/htt_stats

37-ATH11K_DBG_HTT_EXT_PHY_COUNTERS_AND_PHY_STATS:
Used to dump the mac and phy txrx counts and phy stats like per chain rssi
and ANI level.
Usage:
echo 37 > /sys/kernel/debug/ieee80211/phyx/ath11k/htt_stats_type
cat /sys/kernel/debug/ieee80211/phyx/ath11k/htt_stats

Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-00486-QCAHKSWPL_SILICONZ-1
Signed-off-by: Venkateswara Naralasetty <vnaralas@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210913223148.208026-6-jouni@codeaurora.org

drivers/net/wireless/ath/ath11k/debugfs.h

@@ -38,6 +38,10 @@ enum ath11k_dbg_htt_ext_stats_type {
 	ATH11K_DBG_HTT_EXT_STATS_TX_SOUNDING_INFO           =  22,
 	ATH11K_DBG_HTT_EXT_STATS_PDEV_OBSS_PD_STATS	    =  23,
 	ATH11K_DBG_HTT_EXT_STATS_RING_BACKPRESSURE_STATS    =  24,
+	ATH11K_DBG_HTT_EXT_STATS_PEER_CTRL_PATH_TXRX_STATS  =  29,
+	ATH11K_DBG_HTT_EXT_STATS_PDEV_TX_RATE_TXBF_STATS    =  31,
+	ATH11K_DBG_HTT_EXT_STATS_TXBF_OFDMA		    =  32,
+	ATH11K_DBG_HTT_EXT_PHY_COUNTERS_AND_PHY_STATS	    =  37,
 
 	/* keep this last */
 	ATH11K_DBG_HTT_NUM_EXT_STATS,

drivers/net/wireless/ath/ath11k/debugfs_htt_stats.h

@@ -102,6 +102,14 @@ enum htt_tlv_tag_t {
 	HTT_STATS_PDEV_OBSS_PD_TAG                          = 88,
 	HTT_STATS_HW_WAR_TAG				    = 89,
 	HTT_STATS_RING_BACKPRESSURE_STATS_TAG		    = 90,
+	HTT_STATS_PEER_CTRL_PATH_TXRX_STATS_TAG		    = 101,
+	HTT_STATS_PDEV_TX_RATE_TXBF_STATS_TAG		    = 108,
+	HTT_STATS_TXBF_OFDMA_NDPA_STATS_TAG		    = 113,
+	HTT_STATS_TXBF_OFDMA_NDP_STATS_TAG		    = 114,
+	HTT_STATS_TXBF_OFDMA_BRP_STATS_TAG		    = 115,
+	HTT_STATS_TXBF_OFDMA_STEER_STATS_TAG		    = 116,
+	HTT_STATS_PHY_COUNTERS_TAG			    = 121,
+	HTT_STATS_PHY_STATS_TAG				    = 122,
 
 	HTT_STATS_MAX_TAG,
 };
@@ -1750,6 +1758,170 @@ struct htt_ring_backpressure_stats_tlv {
 	u32 backpressure_hist[5];
 };
 
+#define HTT_TX_TXBF_RATE_STATS_NUM_MCS_COUNTERS 14
+#define HTT_TX_TXBF_RATE_STATS_NUM_BW_COUNTERS 5
+#define HTT_TX_PDEV_STATS_NUM_SPATIAL_STREAMS 8
+
+struct htt_pdev_txrate_txbf_stats_tlv {
+	/* SU TxBF TX MCS stats */
+	u32 tx_su_txbf_mcs[HTT_TX_TXBF_RATE_STATS_NUM_MCS_COUNTERS];
+	/* Implicit BF TX MCS stats */
+	u32 tx_su_ibf_mcs[HTT_TX_TXBF_RATE_STATS_NUM_MCS_COUNTERS];
+	/* Open loop TX MCS stats */
+	u32 tx_su_ol_mcs[HTT_TX_TXBF_RATE_STATS_NUM_MCS_COUNTERS];
+	/* SU TxBF TX NSS stats */
+	u32 tx_su_txbf_nss[HTT_TX_PDEV_STATS_NUM_SPATIAL_STREAMS];
+	/* Implicit BF TX NSS stats */
+	u32 tx_su_ibf_nss[HTT_TX_PDEV_STATS_NUM_SPATIAL_STREAMS];
+	/* Open loop TX NSS stats */
+	u32 tx_su_ol_nss[HTT_TX_PDEV_STATS_NUM_SPATIAL_STREAMS];
+	/* SU TxBF TX BW stats */
+	u32 tx_su_txbf_bw[HTT_TX_TXBF_RATE_STATS_NUM_BW_COUNTERS];
+	/* Implicit BF TX BW stats */
+	u32 tx_su_ibf_bw[HTT_TX_TXBF_RATE_STATS_NUM_BW_COUNTERS];
+	/* Open loop TX BW stats */
+	u32 tx_su_ol_bw[HTT_TX_TXBF_RATE_STATS_NUM_BW_COUNTERS];
+};
+
+struct htt_txbf_ofdma_ndpa_stats_tlv {
+	/* 11AX HE OFDMA NDPA frame queued to the HW */
+	u32 ax_ofdma_ndpa_queued[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+	/* 11AX HE OFDMA NDPA frame sent over the air */
+	u32 ax_ofdma_ndpa_tried[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+	/* 11AX HE OFDMA NDPA frame flushed by HW */
+	u32 ax_ofdma_ndpa_flushed[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+	/* 11AX HE OFDMA NDPA frame completed with error(s) */
+	u32 ax_ofdma_ndpa_err[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+};
+
+struct htt_txbf_ofdma_ndp_stats_tlv {
+	/* 11AX HE OFDMA NDP frame queued to the HW */
+	u32 ax_ofdma_ndp_queued[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+	/* 11AX HE OFDMA NDPA frame sent over the air */
+	u32 ax_ofdma_ndp_tried[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+	/* 11AX HE OFDMA NDPA frame flushed by HW */
+	u32 ax_ofdma_ndp_flushed[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+	/* 11AX HE OFDMA NDPA frame completed with error(s) */
+	u32 ax_ofdma_ndp_err[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+};
+
+struct htt_txbf_ofdma_brp_stats_tlv {
+	/* 11AX HE OFDMA MU BRPOLL frame queued to the HW */
+	u32 ax_ofdma_brpoll_queued[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+	/* 11AX HE OFDMA MU BRPOLL frame sent over the air */
+	u32 ax_ofdma_brpoll_tried[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+	/* 11AX HE OFDMA MU BRPOLL frame flushed by HW */
+	u32 ax_ofdma_brpoll_flushed[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+	/* 11AX HE OFDMA MU BRPOLL frame completed with error(s) */
+	u32 ax_ofdma_brp_err[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+	/* Number of CBF(s) received when 11AX HE OFDMA MU BRPOLL frame
+	 * completed with error(s).
+	 */
+	u32 ax_ofdma_brp_err_num_cbf_rcvd[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS + 1];
+};
+
+struct htt_txbf_ofdma_steer_stats_tlv {
+	/* 11AX HE OFDMA PPDUs that were sent over the air with steering (TXBF + OFDMA) */
+	u32 ax_ofdma_num_ppdu_steer[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+	/* 11AX HE OFDMA PPDUs that were sent over the air in open loop */
+	u32 ax_ofdma_num_ppdu_ol[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+	/* 11AX HE OFDMA number of users for which CBF prefetch was
+	 * initiated to PHY HW during TX.
+	 */
+	u32 ax_ofdma_num_usrs_prefetch[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+	/* 11AX HE OFDMA number of users for which sounding was initiated during TX */
+	u32 ax_ofdma_num_usrs_sound[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+	/* 11AX HE OFDMA number of users for which sounding was forced during TX */
+	u32 ax_ofdma_num_usrs_force_sound[HTT_TX_PDEV_STATS_NUM_OFDMA_USER_STATS];
+};
+
+#define HTT_MAX_RX_PKT_CNT 8
+#define HTT_MAX_RX_PKT_CRC_PASS_CNT 8
+#define HTT_MAX_PER_BLK_ERR_CNT 20
+#define HTT_MAX_RX_OTA_ERR_CNT 14
+#define HTT_STATS_MAX_CHAINS 8
+#define ATH11K_STATS_MGMT_FRM_TYPE_MAX 16
+
+struct htt_phy_counters_tlv {
+	/* number of RXTD OFDMA OTA error counts except power surge and drop */
+	u32 rx_ofdma_timing_err_cnt;
+	/* rx_cck_fail_cnt:
+	 * number of cck error counts due to rx reception failure because of
+	 * timing error in cck
+	 */
+	u32 rx_cck_fail_cnt;
+	/* number of times tx abort initiated by mac */
+	u32 mactx_abort_cnt;
+	/* number of times rx abort initiated by mac */
+	u32 macrx_abort_cnt;
+	/* number of times tx abort initiated by phy */
+	u32 phytx_abort_cnt;
+	/* number of times rx abort initiated by phy */
+	u32 phyrx_abort_cnt;
+	/* number of rx defered count initiated by phy */
+	u32 phyrx_defer_abort_cnt;
+	/* number of sizing events generated at LSTF */
+	u32 rx_gain_adj_lstf_event_cnt;
+	/* number of sizing events generated at non-legacy LTF */
+	u32 rx_gain_adj_non_legacy_cnt;
+	/* rx_pkt_cnt -
+	 * Received EOP (end-of-packet) count per packet type;
+	 * [0] = 11a; [1] = 11b; [2] = 11n; [3] = 11ac; [4] = 11ax; [5] = GF
+	 * [6-7]=RSVD
+	 */
+	u32 rx_pkt_cnt[HTT_MAX_RX_PKT_CNT];
+	/* rx_pkt_crc_pass_cnt -
+	 * Received EOP (end-of-packet) count per packet type;
+	 * [0] = 11a; [1] = 11b; [2] = 11n; [3] = 11ac; [4] = 11ax; [5] = GF
+	 * [6-7]=RSVD
+	 */
+	u32 rx_pkt_crc_pass_cnt[HTT_MAX_RX_PKT_CRC_PASS_CNT];
+	/* per_blk_err_cnt -
+	 * Error count per error source;
+	 * [0] = unknown; [1] = LSIG; [2] = HTSIG; [3] = VHTSIG; [4] = HESIG;
+	 * [5] = RXTD_OTA; [6] = RXTD_FATAL; [7] = DEMF; [8] = ROBE;
+	 * [9] = PMI; [10] = TXFD; [11] = TXTD; [12] = PHYRF
+	 * [13-19]=RSVD
+	 */
+	u32 per_blk_err_cnt[HTT_MAX_PER_BLK_ERR_CNT];
+	/* rx_ota_err_cnt -
+	 * RXTD OTA (over-the-air) error count per error reason;
+	 * [0] = voting fail; [1] = weak det fail; [2] = strong sig fail;
+	 * [3] = cck fail; [4] = power surge; [5] = power drop;
+	 * [6] = btcf timing timeout error; [7] = btcf packet detect error;
+	 * [8] = coarse timing timeout error
+	 * [9-13]=RSVD
+	 */
+	u32 rx_ota_err_cnt[HTT_MAX_RX_OTA_ERR_CNT];
+};
+
+struct htt_phy_stats_tlv {
+	/* per chain hw noise floor values in dBm */
+	s32 nf_chain[HTT_STATS_MAX_CHAINS];
+	/* number of false radars detected */
+	u32 false_radar_cnt;
+	/* number of channel switches happened due to radar detection */
+	u32 radar_cs_cnt;
+	/* ani_level -
+	 * ANI level (noise interference) corresponds to the channel
+	 * the desense levels range from -5 to 15 in dB units,
+	 * higher values indicating more noise interference.
+	 */
+	s32 ani_level;
+	/* running time in minutes since FW boot */
+	u32 fw_run_time;
+};
+
+struct htt_peer_ctrl_path_txrx_stats_tlv {
+	/* peer mac address */
+	u8 peer_mac_addr[ETH_ALEN];
+	u8 rsvd[2];
+	/* Num of tx mgmt frames with subtype on peer level */
+	u32 peer_tx_mgmt_subtype[ATH11K_STATS_MGMT_FRM_TYPE_MAX];
+	/* Num of rx mgmt frames with subtype on peer level */
+	u32 peer_rx_mgmt_subtype[ATH11K_STATS_MGMT_FRM_TYPE_MAX];
+};
+
 #ifdef CONFIG_ATH11K_DEBUGFS
 
 void ath11k_debugfs_htt_stats_init(struct ath11k *ar);

drivers/net/wireless/ath/ath11k/debugfs_sta.c

@@ -419,15 +419,21 @@ ath11k_dbg_sta_open_htt_peer_stats(struct inode *inode, struct file *file)
 	struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv;
 	struct ath11k *ar = arsta->arvif->ar;
 	struct debug_htt_stats_req *stats_req;
+	int type = ar->debug.htt_stats.type;
 	int ret;
 
+	if ((type != ATH11K_DBG_HTT_EXT_STATS_PEER_INFO &&
+	     type != ATH11K_DBG_HTT_EXT_STATS_PEER_CTRL_PATH_TXRX_STATS) ||
+	    type == ATH11K_DBG_HTT_EXT_STATS_RESET)
+		return -EPERM;
+
 	stats_req = vzalloc(sizeof(*stats_req) + ATH11K_HTT_STATS_BUF_SIZE);
 	if (!stats_req)
 		return -ENOMEM;
 
 	mutex_lock(&ar->conf_mutex);
 	ar->debug.htt_stats.stats_req = stats_req;
-	stats_req->type = ATH11K_DBG_HTT_EXT_STATS_PEER_INFO;
+	stats_req->type = type;
 	memcpy(stats_req->peer_addr, sta->addr, ETH_ALEN);
 	ret = ath11k_debugfs_htt_stats_req(ar);
 	mutex_unlock(&ar->conf_mutex);