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From: Bhagavathi Perumal S <bperumal@codeaurora.org>
To: ath11k@lists.infradead.org
Cc: linux-wireless@vger.kernel.org,
	Bhagavathi Perumal S <bperumal@codeaurora.org>
Subject: [PATCH v3] ath11k: Add missing pdev rx rate stats
Date: Wed, 4 Dec 2019 16:18:00 +0000
Message-ID: <0101016ed1b43bf2-1e21d5b3-b396-446f-9f19-c7de3df29a61-000000@us-west-2.amazonses.com> (raw)

This adds missing rx rate info stats like pilot evm,
per chain rssi, per user ul ppdu and mpdu counts and
ul ofdma rate info etc.

And add null checks for memory alloc failures.

Signed-off-by: Bhagavathi Perumal S <bperumal@codeaurora.org>
---
v3:
 -Rebased on top of the latest ath.git

 drivers/net/wireless/ath/ath11k/debug_htt_stats.c | 205 ++++++++++++++++++----
 drivers/net/wireless/ath/ath11k/debug_htt_stats.h |  42 +++++
 2 files changed, 214 insertions(+), 33 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/debug_htt_stats.c b/drivers/net/wireless/ath/ath11k/debug_htt_stats.c
index 27b301b..17a598d 100644
--- a/drivers/net/wireless/ath/ath11k/debug_htt_stats.c
+++ b/drivers/net/wireless/ath/ath11k/debug_htt_stats.c
@@ -776,11 +776,14 @@ static inline void htt_print_tx_peer_rate_stats_tlv(const void *tag_buf,
 	u32 len = stats_req->buf_len;
 	u32 buf_len = ATH11K_HTT_STATS_BUF_SIZE;
 	char str_buf[HTT_MAX_STRING_LEN] = {0};
-	char *tx_gi[HTT_TX_PEER_STATS_NUM_GI_COUNTERS];
+	char *tx_gi[HTT_TX_PEER_STATS_NUM_GI_COUNTERS] = {0};
 	u8 j;
 
-	for (j = 0; j < HTT_TX_PEER_STATS_NUM_GI_COUNTERS; j++)
+	for (j = 0; j < HTT_TX_PEER_STATS_NUM_GI_COUNTERS; j++) {
 		tx_gi[j] = kmalloc(HTT_MAX_STRING_LEN, GFP_ATOMIC);
+		if (!tx_gi[j])
+			goto fail;
+	}
 
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "HTT_TX_PEER_RATE_STATS_TLV:");
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "tx_ldpc = %u",
@@ -841,15 +844,16 @@ static inline void htt_print_tx_peer_rate_stats_tlv(const void *tag_buf,
 			HTT_TX_PDEV_STATS_NUM_DCM_COUNTERS);
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "tx_dcm = %s\n", str_buf);
 
-	for (j = 0; j < HTT_TX_PEER_STATS_NUM_GI_COUNTERS; j++)
-		kfree(tx_gi[j]);
-
 	if (len >= buf_len)
 		buf[buf_len - 1] = 0;
 	else
 		buf[len] = 0;
 
 	stats_req->buf_len = len;
+
+fail:
+	for (j = 0; j < HTT_TX_PEER_STATS_NUM_GI_COUNTERS; j++)
+		kfree(tx_gi[j]);
 }
 
 static inline void htt_print_rx_peer_rate_stats_tlv(const void *tag_buf,
@@ -860,15 +864,21 @@ static inline void htt_print_rx_peer_rate_stats_tlv(const void *tag_buf,
 	u32 len = stats_req->buf_len;
 	u32 buf_len = ATH11K_HTT_STATS_BUF_SIZE;
 	u8 j;
-	char *rssi_chain[HTT_RX_PEER_STATS_NUM_SPATIAL_STREAMS];
-	char *rx_gi[HTT_RX_PEER_STATS_NUM_GI_COUNTERS];
+	char *rssi_chain[HTT_RX_PEER_STATS_NUM_SPATIAL_STREAMS] = {0};
+	char *rx_gi[HTT_RX_PEER_STATS_NUM_GI_COUNTERS] = {0};
 	char str_buf[HTT_MAX_STRING_LEN] = {0};
 
-	for (j = 0; j < HTT_RX_PEER_STATS_NUM_SPATIAL_STREAMS; j++)
+	for (j = 0; j < HTT_RX_PEER_STATS_NUM_SPATIAL_STREAMS; j++) {
 		rssi_chain[j] = kmalloc(HTT_MAX_STRING_LEN, GFP_ATOMIC);
+		if (!rssi_chain[j])
+			goto fail;
+	}
 
-	for (j = 0; j < HTT_RX_PEER_STATS_NUM_GI_COUNTERS; j++)
+	for (j = 0; j < HTT_RX_PEER_STATS_NUM_GI_COUNTERS; j++) {
 		rx_gi[j] = kmalloc(HTT_MAX_STRING_LEN, GFP_ATOMIC);
+		if (!rx_gi[j])
+			goto fail;
+	}
 
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "HTT_RX_PEER_RATE_STATS_TLV:");
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "nsts = %u",
@@ -928,18 +938,19 @@ static inline void htt_print_rx_peer_rate_stats_tlv(const void *tag_buf,
 			HTT_RX_PDEV_STATS_NUM_PREAMBLE_TYPES);
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "rx_pream = %s\n", str_buf);
 
-	for (j = 0; j < HTT_RX_PEER_STATS_NUM_SPATIAL_STREAMS; j++)
-		kfree(rssi_chain[j]);
-
-	for (j = 0; j < HTT_RX_PEER_STATS_NUM_GI_COUNTERS; j++)
-		kfree(rx_gi[j]);
-
 	if (len >= buf_len)
 		buf[buf_len - 1] = 0;
 	else
 		buf[len] = 0;
 
 	stats_req->buf_len = len;
+
+fail:
+	for (j = 0; j < HTT_RX_PEER_STATS_NUM_SPATIAL_STREAMS; j++)
+		kfree(rssi_chain[j]);
+
+	for (j = 0; j < HTT_RX_PEER_STATS_NUM_GI_COUNTERS; j++)
+		kfree(rx_gi[j]);
 }
 
 static inline void
@@ -2832,10 +2843,13 @@ static inline void htt_print_tx_pdev_rate_stats_tlv(const void *tag_buf,
 	u32 buf_len = ATH11K_HTT_STATS_BUF_SIZE;
 	u8 j;
 	char str_buf[HTT_MAX_STRING_LEN] = {0};
-	char *tx_gi[HTT_TX_PEER_STATS_NUM_GI_COUNTERS];
+	char *tx_gi[HTT_TX_PEER_STATS_NUM_GI_COUNTERS] = {0};
 
-	for (j = 0; j < HTT_TX_PEER_STATS_NUM_GI_COUNTERS; j++)
+	for (j = 0; j < HTT_TX_PEER_STATS_NUM_GI_COUNTERS; j++) {
 		tx_gi[j] = kmalloc(HTT_MAX_STRING_LEN, GFP_ATOMIC);
+		if (!tx_gi[j])
+			goto fail;
+	}
 
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "HTT_TX_PDEV_RATE_STATS_TLV:");
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "mac_id = %u",
@@ -2988,15 +3002,15 @@ static inline void htt_print_tx_pdev_rate_stats_tlv(const void *tag_buf,
 			HTT_TX_PDEV_STATS_NUM_DCM_COUNTERS);
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "tx_dcm = %s\n", str_buf);
 
-	for (j = 0; j < HTT_TX_PEER_STATS_NUM_GI_COUNTERS; j++)
-		kfree(tx_gi[j]);
-
 	if (len >= buf_len)
 		buf[buf_len - 1] = 0;
 	else
 		buf[len] = 0;
 
 	stats_req->buf_len = len;
+fail:
+	for (j = 0; j < HTT_TX_PEER_STATS_NUM_GI_COUNTERS; j++)
+		kfree(tx_gi[j]);
 }
 
 static inline void htt_print_rx_pdev_rate_stats_tlv(const void *tag_buf,
@@ -3006,16 +3020,30 @@ static inline void htt_print_rx_pdev_rate_stats_tlv(const void *tag_buf,
 	u8 *buf = stats_req->buf;
 	u32 len = stats_req->buf_len;
 	u32 buf_len = ATH11K_HTT_STATS_BUF_SIZE;
-	u8 j;
-	char *rssi_chain[HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS];
-	char *rx_gi[HTT_RX_PDEV_STATS_NUM_GI_COUNTERS];
+	u8 i, j;
+	u16 index = 0;
+	char *rssi_chain[HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS] = {0};
+	char *rx_gi[HTT_RX_PDEV_STATS_NUM_GI_COUNTERS] = {0};
 	char str_buf[HTT_MAX_STRING_LEN] = {0};
+	char *rx_pilot_evm_dB[HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS] = {0};
 
-	for (j = 0; j < HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS; j++)
+	for (j = 0; j < HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS; j++) {
 		rssi_chain[j] = kmalloc(HTT_MAX_STRING_LEN, GFP_ATOMIC);
+		if (!rssi_chain[j])
+			goto fail;
+	}
 
-	for (j = 0; j < HTT_RX_PDEV_STATS_NUM_GI_COUNTERS; j++)
+	for (j = 0; j < HTT_RX_PDEV_STATS_NUM_GI_COUNTERS; j++) {
 		rx_gi[j] = kmalloc(HTT_MAX_STRING_LEN, GFP_ATOMIC);
+		if (!rx_gi[j])
+			goto fail;
+	}
+
+	for (j = 0; j < HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS; j++) {
+		rx_pilot_evm_dB[j] = kmalloc(HTT_MAX_STRING_LEN, GFP_ATOMIC);
+		if (!rx_pilot_evm_dB[j])
+			goto fail;
+	}
 
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "HTT_RX_PDEV_RATE_STATS_TLV:");
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "mac_id = %u",
@@ -3059,6 +3087,32 @@ static inline void htt_print_rx_pdev_rate_stats_tlv(const void *tag_buf,
 	ARRAY_TO_STRING(str_buf, htt_stats_buf->rx_bw,
 			HTT_RX_PDEV_STATS_NUM_BW_COUNTERS);
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "rx_bw = %s ", str_buf);
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "rx_evm_nss_count = %u",
+			htt_stats_buf->nss_count);
+
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "rx_evm_pilot_count = %u",
+			htt_stats_buf->pilot_count);
+
+	for (j = 0; j < HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS; j++) {
+		index = 0;
+
+		for (i = 0; i < HTT_RX_PDEV_STATS_RXEVM_MAX_PILOTS_PER_NSS; i++)
+			index += snprintf(&rx_pilot_evm_dB[j][index],
+					  HTT_MAX_STRING_LEN - index,
+					  " %u:%d,",
+					  i,
+					  htt_stats_buf->rx_pilot_evm_dB[j][i]);
+		len += HTT_DBG_OUT(buf + len, buf_len - len, "pilot_evm_dB[%u] = %s ",
+				   j, rx_pilot_evm_dB[j]);
+	}
+
+	index = 0;
+	memset(str_buf, 0x0, HTT_MAX_STRING_LEN);
+	for (i = 0; i < HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS; i++)
+		index += snprintf(&str_buf[index],
+				  HTT_MAX_STRING_LEN - index,
+				  " %u:%d,", i, htt_stats_buf->rx_pilot_evm_dB_mean[i]);
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "pilot_evm_dB_mean = %s ", str_buf);
 
 	for (j = 0; j < HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS; j++) {
 		ARRAY_TO_STRING(rssi_chain[j], htt_stats_buf->rssi_chain[j],
@@ -3079,12 +3133,6 @@ static inline void htt_print_rx_pdev_rate_stats_tlv(const void *tag_buf,
 			HTT_RX_PDEV_STATS_NUM_PREAMBLE_TYPES);
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "rx_pream = %s", str_buf);
 
-	for (j = 0; j < HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS; j++)
-		kfree(rssi_chain[j]);
-
-	for (j = 0; j < HTT_RX_PDEV_STATS_NUM_GI_COUNTERS; j++)
-		kfree(rx_gi[j]);
-
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "rx_11ax_su_ext = %u",
 			   htt_stats_buf->rx_11ax_su_ext);
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "rx_11ac_mumimo = %u",
@@ -3110,8 +3158,89 @@ static inline void htt_print_rx_pdev_rate_stats_tlv(const void *tag_buf,
 
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "rx_active_dur_us_low = %u",
 			   htt_stats_buf->rx_active_dur_us_low);
-	len += HTT_DBG_OUT(buf + len, buf_len - len, "rx_active_dur_us_high = %u\n",
-			   htt_stats_buf->rx_active_dur_us_high);
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "rx_active_dur_us_high = %u",
+			htt_stats_buf->rx_active_dur_us_high);
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "rx_11ax_ul_ofdma = %u",
+			htt_stats_buf->rx_11ax_ul_ofdma);
+
+	memset(str_buf, 0x0, HTT_MAX_STRING_LEN);
+	ARRAY_TO_STRING(str_buf, htt_stats_buf->ul_ofdma_rx_mcs,
+			HTT_RX_PDEV_STATS_NUM_MCS_COUNTERS);
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "ul_ofdma_rx_mcs = %s ", str_buf);
+
+	for (j = 0; j < HTT_RX_PDEV_STATS_NUM_GI_COUNTERS; j++) {
+		ARRAY_TO_STRING(rx_gi[j], htt_stats_buf->ul_ofdma_rx_gi[j],
+				HTT_RX_PDEV_STATS_NUM_MCS_COUNTERS);
+		len += HTT_DBG_OUT(buf + len, buf_len - len, "ul_ofdma_rx_gi[%u] = %s ",
+				   j, rx_gi[j]);
+	}
+
+	memset(str_buf, 0x0, HTT_MAX_STRING_LEN);
+	ARRAY_TO_STRING(str_buf, htt_stats_buf->ul_ofdma_rx_nss,
+			HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS);
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "ul_ofdma_rx_nss = %s ", str_buf);
+
+	memset(str_buf, 0x0, HTT_MAX_STRING_LEN);
+	ARRAY_TO_STRING(str_buf, htt_stats_buf->ul_ofdma_rx_bw,
+			HTT_RX_PDEV_STATS_NUM_BW_COUNTERS);
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "ul_ofdma_rx_bw = %s ", str_buf);
+
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "ul_ofdma_rx_stbc = %u",
+			htt_stats_buf->ul_ofdma_rx_stbc);
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "ul_ofdma_rx_ldpc = %u",
+			htt_stats_buf->ul_ofdma_rx_ldpc);
+
+	memset(str_buf, 0x0, HTT_MAX_STRING_LEN);
+	ARRAY_TO_STRING(str_buf, htt_stats_buf->rx_ulofdma_non_data_ppdu,
+			HTT_RX_PDEV_MAX_OFDMA_NUM_USER);
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "rx_ulofdma_non_data_ppdu = %s ",
+			   str_buf);
+
+	memset(str_buf, 0x0, HTT_MAX_STRING_LEN);
+	ARRAY_TO_STRING(str_buf, htt_stats_buf->rx_ulofdma_data_ppdu,
+			HTT_RX_PDEV_MAX_OFDMA_NUM_USER);
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "rx_ulofdma_data_ppdu = %s ",
+			   str_buf);
+
+	memset(str_buf, 0x0, HTT_MAX_STRING_LEN);
+	ARRAY_TO_STRING(str_buf, htt_stats_buf->rx_ulofdma_mpdu_ok,
+			HTT_RX_PDEV_MAX_OFDMA_NUM_USER);
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "rx_ulofdma_mpdu_ok = %s ", str_buf);
+
+	memset(str_buf, 0x0, HTT_MAX_STRING_LEN);
+	ARRAY_TO_STRING(str_buf, htt_stats_buf->rx_ulofdma_mpdu_fail,
+			HTT_RX_PDEV_MAX_OFDMA_NUM_USER);
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "rx_ulofdma_mpdu_fail = %s",
+			   str_buf);
+
+	for (j = 0; j < HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS; j++) {
+		index = 0;
+		memset(str_buf, 0x0, HTT_MAX_STRING_LEN);
+		for (i = 0; i < HTT_RX_PDEV_MAX_OFDMA_NUM_USER; i++)
+			index += snprintf(&str_buf[index],
+					  HTT_MAX_STRING_LEN - index,
+					  " %u:%d,",
+					  i, htt_stats_buf->rx_ul_fd_rssi[j][i]);
+		len += HTT_DBG_OUT(buf + len, buf_len - len,
+				   "rx_ul_fd_rssi: nss[%u] = %s", j, str_buf);
+	}
+
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "per_chain_rssi_pkt_type = %#x",
+			   htt_stats_buf->per_chain_rssi_pkt_type);
+
+	for (j = 0; j < HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS; j++) {
+		index = 0;
+		memset(str_buf, 0x0, HTT_MAX_STRING_LEN);
+		for (i = 0; i < HTT_RX_PDEV_STATS_NUM_BW_COUNTERS; i++)
+			index += snprintf(&str_buf[index],
+					  HTT_MAX_STRING_LEN - index,
+					  " %u:%d,",
+					  i,
+					  htt_stats_buf->rx_per_chain_rssi_in_dbm[j][i]);
+		len += HTT_DBG_OUT(buf + len, buf_len - len,
+				   "rx_per_chain_rssi_in_dbm[%u] = %s ", j, str_buf);
+	}
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "\n");
 
 	if (len >= buf_len)
 		buf[buf_len - 1] = 0;
@@ -3119,6 +3248,16 @@ static inline void htt_print_rx_pdev_rate_stats_tlv(const void *tag_buf,
 		buf[len] = 0;
 
 	stats_req->buf_len = len;
+
+fail:
+	for (j = 0; j < HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS; j++)
+		kfree(rssi_chain[j]);
+
+	for (j = 0; j < HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS; j++)
+		kfree(rx_pilot_evm_dB[j]);
+
+	for (i = 0; i < HTT_RX_PDEV_STATS_NUM_GI_COUNTERS; i++)
+		kfree(rx_gi[i]);
 }
 
 static inline void htt_print_rx_soc_fw_stats_tlv(const void *tag_buf,
diff --git a/drivers/net/wireless/ath/ath11k/debug_htt_stats.h b/drivers/net/wireless/ath/ath11k/debug_htt_stats.h
index 618f194..9807599 100644
--- a/drivers/net/wireless/ath/ath11k/debug_htt_stats.h
+++ b/drivers/net/wireless/ath/ath11k/debug_htt_stats.h
@@ -1231,6 +1231,8 @@ struct htt_tx_pdev_rate_stats_tlv {
 #define HTT_RX_PDEV_STATS_NUM_BW_COUNTERS          4
 #define HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS      8
 #define HTT_RX_PDEV_STATS_NUM_PREAMBLE_TYPES       HTT_STATS_PREAM_COUNT
+#define HTT_RX_PDEV_MAX_OFDMA_NUM_USER             8
+#define HTT_RX_PDEV_STATS_RXEVM_MAX_PILOTS_PER_NSS 16
 
 struct htt_rx_pdev_rate_stats_tlv {
 	u32 mac_id__word;
@@ -1269,6 +1271,46 @@ struct htt_rx_pdev_rate_stats_tlv {
 	u32 rx_legacy_ofdm_rate[HTT_RX_PDEV_STATS_NUM_LEGACY_OFDM_STATS];
 	u32 rx_active_dur_us_low;
 	u32 rx_active_dur_us_high;
+
+	u32 rx_11ax_ul_ofdma;
+
+	u32 ul_ofdma_rx_mcs[HTT_RX_PDEV_STATS_NUM_MCS_COUNTERS];
+	u32 ul_ofdma_rx_gi[HTT_TX_PDEV_STATS_NUM_GI_COUNTERS]
+			  [HTT_RX_PDEV_STATS_NUM_MCS_COUNTERS];
+	u32 ul_ofdma_rx_nss[HTT_TX_PDEV_STATS_NUM_SPATIAL_STREAMS];
+	u32 ul_ofdma_rx_bw[HTT_TX_PDEV_STATS_NUM_BW_COUNTERS];
+	u32 ul_ofdma_rx_stbc;
+	u32 ul_ofdma_rx_ldpc;
+
+	/* record the stats for each user index */
+	u32 rx_ulofdma_non_data_ppdu[HTT_RX_PDEV_MAX_OFDMA_NUM_USER]; /* ppdu level */
+	u32 rx_ulofdma_data_ppdu[HTT_RX_PDEV_MAX_OFDMA_NUM_USER];     /* ppdu level */
+	u32 rx_ulofdma_mpdu_ok[HTT_RX_PDEV_MAX_OFDMA_NUM_USER];       /* mpdu level */
+	u32 rx_ulofdma_mpdu_fail[HTT_RX_PDEV_MAX_OFDMA_NUM_USER];     /* mpdu level */
+
+	u32 nss_count;
+	u32 pilot_count;
+	/* RxEVM stats in dB */
+	s32 rx_pilot_evm_dB[HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS]
+			   [HTT_RX_PDEV_STATS_RXEVM_MAX_PILOTS_PER_NSS];
+	/* rx_pilot_evm_dB_mean:
+	 * EVM mean across pilots, computed as
+	 *     mean(10*log10(rx_pilot_evm_linear)) = mean(rx_pilot_evm_dB)
+	 */
+	s32 rx_pilot_evm_dB_mean[HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS];
+	s8 rx_ul_fd_rssi[HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS]
+			[HTT_RX_PDEV_MAX_OFDMA_NUM_USER]; /* dBm units */
+	/* per_chain_rssi_pkt_type:
+	 * This field shows what type of rx frame the per-chain RSSI was computed
+	 * on, by recording the frame type and sub-type as bit-fields within this
+	 * field:
+	 * BIT [3 : 0]    :- IEEE80211_FC0_TYPE
+	 * BIT [7 : 4]    :- IEEE80211_FC0_SUBTYPE
+	 * BIT [31 : 8]   :- Reserved
+	 */
+	u32 per_chain_rssi_pkt_type;
+	s8 rx_per_chain_rssi_in_dbm[HTT_RX_PDEV_STATS_NUM_SPATIAL_STREAMS]
+				   [HTT_RX_PDEV_STATS_NUM_BW_COUNTERS];
 };
 
 /* == RX PDEV/SOC STATS == */
-- 
1.9.1


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Linux-Wireless Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-wireless/0 linux-wireless/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-wireless linux-wireless/ https://lore.kernel.org/linux-wireless \
		linux-wireless@vger.kernel.org
	public-inbox-index linux-wireless

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-wireless


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git