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wifi: ath12k: Add support for transmit histogram stats

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Add support for transmit histogram stats under HTT stats type 9. These
stats give information about drop count, MCS drop rate, histogram
count, etc.

Note: WCN7850 firmware version -
WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 does not support tag
HTT_STATS_TX_PDEV_HISTOGRAM_STATS_TAG(144), currently.

Sample output:
echo 9 > /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/mac0/htt_stats_type
cat /sys/kernel/debug/ath12k/pci-0000\:58\:00.0/mac0/htt_stats
...
low_latency_rate_cnt =  0
su_burst_rate_drop_cnt = 0
su_burst_rate_drop_fail_cnt = 0
rate_retry_mcs_drop_cnt = 0

PER_HISTOGRAM_STATS
mcs_drop_rate =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0, 10:0, 11:0, 12:0, 13:0, 14:0, 15:0
per_histogram_count =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0, 10:0,
11:0, 12:0, 13:0, 14:0, 15:0, 16:0, 17:0, 18:0, 19:0, 20:0,
21:0, 22:0, 23:0, 24:0, 25:0, 26:0, 27:0, 28:0, 29:0, 30:0,
31:0, 32:0, 33:0, 34:0, 35:0, 36:0, 37:0, 38:0, 39:0, 40:0,
41:0, 42:0, 43:0, 44:0, 45:0, 46:0, 47:0, 48:0, 49:0, 50:0,
51:0, 52:0, 53:0, 54:0, 55:0, 56:0, 57:0, 58:0, 59:0, 60:0,
61:0, 62:0, 63:0, 64:0, 65:0, 66:0, 67:0, 68:0, 69:0, 70:0,
71:0, 72:0, 73:0, 74:0, 75:0, 76:0, 77:0, 78:0, 79:0, 80:0,
81:0, 82:0, 83:0, 84:0, 85:0, 86:0, 87:0, 88:0, 89:0, 90:0,
91:0, 92:0, 93:0, 94:0, 95:0, 96:0, 97:0, 98:0, 99:0, 100:0

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Signed-off-by: Saleemuddin Shaik <quic_saleemud@quicinc.com>
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Link: https://patch.msgid.link/20250617112139.865788-1-quic_rdevanat@quicinc.com
[add __packed to struct ath12k_htt_tx_histogram_stats_tlv]
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
This commit is contained in:
Saleemuddin Shaik
2025-06-17 16:51:39 +05:30
committed by Jeff Johnson
parent c27bb624b3
commit ffc7adb0a1
2 changed files with 51 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
View File

@@ -4720,7 +4720,38 @@ ath12k_htt_print_tx_pdev_rate_stats_tlv(const void *tag_buf, u16 tag_len,
len += print_array_to_buf(buf, len, "tx_pream", htt_stats_buf->tx_pream,
ATH12K_HTT_TX_PDEV_STATS_NUM_PREAMBLE_TYPES, "\n");
len += print_array_to_buf(buf, len, "tx_dcm", htt_stats_buf->tx_dcm,
ATH12K_HTT_TX_PDEV_STATS_NUM_DCM_COUNTERS, "\n");
ATH12K_HTT_TX_PDEV_STATS_NUM_DCM_COUNTERS, "\n\n");
stats_req->buf_len = len;
}
static void
ath12k_htt_print_histogram_stats_tlv(const void *tag_buf, u16 tag_len,
struct debug_htt_stats_req *stats_req)
{
const struct ath12k_htt_tx_histogram_stats_tlv *stats_buf = tag_buf;
u32 buf_len = ATH12K_HTT_STATS_BUF_SIZE;
u32 len = stats_req->buf_len;
u8 *buf = stats_req->buf;
if (tag_len < sizeof(*stats_buf))
return;
len += scnprintf(buf + len, buf_len - len, "low_latency_rate_cnt = %u\n",
le32_to_cpu(stats_buf->low_latency_rate_cnt));
len += scnprintf(buf + len, buf_len - len, "su_burst_rate_drop_cnt = %u\n",
le32_to_cpu(stats_buf->su_burst_rate_drop_cnt));
len += scnprintf(buf + len, buf_len - len, "su_burst_rate_drop_fail_cnt = %u\n",
le32_to_cpu(stats_buf->su_burst_rate_drop_fail_cnt));
len += scnprintf(buf + len, buf_len - len, "rate_retry_mcs_drop_cnt = %u\n",
le32_to_cpu(stats_buf->rate_retry_mcs_drop_cnt));
len += scnprintf(buf + len, buf_len - len, "\nPER_HISTOGRAM_STATS\n");
len += print_array_to_buf(buf, len, "mcs_drop_rate", stats_buf->mcs_drop_rate,
ATH12K_HTT_TX_PDEV_STATS_NUM_MCS_DROP_COUNTERS, "\n");
len += print_array_to_buf(buf, len, "per_histogram_count",
stats_buf->per_histogram_cnt,
ATH12K_HTT_TX_PDEV_STATS_NUM_PER_COUNTERS, "\n\n");
stats_req->buf_len = len;
}
@@ -5277,6 +5308,9 @@ static int ath12k_dbg_htt_ext_stats_parse(struct ath12k_base *ab,
case HTT_STATS_TX_PDEV_RATE_STATS_TAG:
ath12k_htt_print_tx_pdev_rate_stats_tlv(tag_buf, len, stats_req);
break;
case HTT_STATS_TX_PDEV_HISTOGRAM_STATS_TAG:
ath12k_htt_print_histogram_stats_tlv(tag_buf, len, stats_req);
break;
case HTT_STATS_RX_PDEV_RATE_STATS_TAG:
ath12k_htt_print_rx_pdev_rate_stats_tlv(tag_buf, len, stats_req);
break;

16
drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h
View File

@@ -237,6 +237,7 @@ enum ath12k_dbg_htt_tlv_tag {
HTT_STATS_TX_SELFGEN_BE_ERR_STATS_TAG = 137,
HTT_STATS_TX_SELFGEN_BE_STATS_TAG = 138,
HTT_STATS_TX_SELFGEN_BE_SCHED_STATUS_STATS_TAG = 139,
HTT_STATS_TX_PDEV_HISTOGRAM_STATS_TAG = 144,
HTT_STATS_TXBF_OFDMA_AX_NDPA_STATS_TAG = 147,
HTT_STATS_TXBF_OFDMA_AX_NDP_STATS_TAG = 148,
HTT_STATS_TXBF_OFDMA_AX_BRP_STATS_TAG = 149,
@@ -418,6 +419,12 @@ struct ath12k_htt_tx_pdev_mu_ppdu_dist_stats_tlv {
#define ATH12K_HTT_TX_PDEV_STATS_NUM_EXTRA_MCS_COUNTERS 2
#define ATH12K_HTT_TX_PDEV_STATS_NUM_EXTRA2_MCS_COUNTERS 2
#define ATH12K_HTT_TX_PDEV_STATS_NUM_11AX_TRIGGER_TYPES 6
#define ATH12K_HTT_TX_PDEV_STATS_NUM_PER_COUNTERS 101
#define ATH12K_HTT_TX_PDEV_STATS_NUM_MCS_DROP_COUNTERS \
(ATH12K_HTT_TX_PDEV_STATS_NUM_MCS_COUNTERS + \
ATH12K_HTT_TX_PDEV_STATS_NUM_EXTRA_MCS_COUNTERS + \
ATH12K_HTT_TX_PDEV_STATS_NUM_EXTRA2_MCS_COUNTERS)
struct ath12k_htt_tx_pdev_rate_stats_tlv {
__le32 mac_id_word;
@@ -472,6 +479,15 @@ struct ath12k_htt_tx_pdev_rate_stats_tlv {
__le32 tx_bw_320mhz;
};
struct ath12k_htt_tx_histogram_stats_tlv {
__le32 rate_retry_mcs_drop_cnt;
__le32 mcs_drop_rate[ATH12K_HTT_TX_PDEV_STATS_NUM_MCS_DROP_COUNTERS];
__le32 per_histogram_cnt[ATH12K_HTT_TX_PDEV_STATS_NUM_PER_COUNTERS];
__le32 low_latency_rate_cnt;
__le32 su_burst_rate_drop_cnt;
__le32 su_burst_rate_drop_fail_cnt;
} __packed;
#define ATH12K_HTT_RX_PDEV_STATS_NUM_LEGACY_CCK_STATS 4
#define ATH12K_HTT_RX_PDEV_STATS_NUM_LEGACY_OFDM_STATS 8
#define ATH12K_HTT_RX_PDEV_STATS_NUM_MCS_COUNTERS 12