Commit a9f2976f authored by Ramya Gnanasekar's avatar Ramya Gnanasekar Committed by Kalle Valo
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wifi: ath12k: Dump additional Tx PDEV HTT stats 



Support to dump additional Tx PDEV stats through HTT stats debugfs.
Following stats dump are supported:
        1. PDEV control path stat to dump Tx management frame count
        2. Tx PDEV SIFS histogram stats
        3. Tx MU MIMO PPDU stats for 802.11ac, 802.11ax and 802.11be

Sample Output:
---------------
echo 1 > /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_TX_PDEV_STATS_CMN_TLV:
mac_id = 0
comp_delivered = 0
self_triggers = 13
......
......
HTT_TX_PDEV_STATS_CTRL_PATH_TX_STATS:
fw_tx_mgmt_subtype =  0:1, 1:0, 2:0, 3:0, 4:38, 5:0, 6:0, 7:0, 8:0, 9:0, 10:0, 11:1, 12:0, 13:7, 14:0, 15:0

HTT_TX_PDEV_STATS_SIFS_HIST_TLV:
sifs_hist_status =  0:237, 1:185, 2:1, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0

HTT_TX_PDEV_AC_MU_PPDU_DISTRIBUTION_STATS:
ac_mu_mimo_num_seq_posted_nr4 = 0
ac_mu_mimo_num_ppdu_posted_per_burst_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0
ac_mu_mimo_num_ppdu_completed_per_burst_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0
ac_mu_mimo_num_seq_term_status_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0

ac_mu_mimo_num_seq_posted_nr8 = 0
ac_mu_mimo_num_ppdu_posted_per_burst_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0
ac_mu_mimo_num_ppdu_completed_per_burst_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0
ac_mu_mimo_num_seq_term_status_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0

HTT_TX_PDEV_AX_MU_PPDU_DISTRIBUTION_STATS:
ax_mu_mimo_num_seq_posted_nr4 = 0
ax_mu_mimo_num_ppdu_posted_per_burst_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0
ax_mu_mimo_num_ppdu_completed_per_burst_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0
ax_mu_mimo_num_seq_term_status_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0

ax_mu_mimo_num_seq_posted_nr8 = 0
ax_mu_mimo_num_ppdu_posted_per_burst_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0
ax_mu_mimo_num_ppdu_completed_per_burst_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0
ax_mu_mimo_num_seq_term_status_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0

HTT_TX_PDEV_BE_MU_PPDU_DISTRIBUTION_STATS:
be_mu_mimo_num_seq_posted_nr4 = 0
be_mu_mimo_num_ppdu_posted_per_burst_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0
be_mu_mimo_num_ppdu_completed_per_burst_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0
be_mu_mimo_num_seq_term_status_nr4 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0

be_mu_mimo_num_seq_posted_nr8 = 0
be_mu_mimo_num_ppdu_posted_per_burst_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0
be_mu_mimo_num_ppdu_completed_per_burst_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0, 9:0
be_mu_mimo_num_seq_term_status_nr8 =  0:0, 1:0, 2:0, 3:0, 4:0, 5:0, 6:0, 7:0, 8:0

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: default avatarRamya Gnanasekar <quic_rgnanase@quicinc.com>
Acked-by: default avatarJeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: default avatarKalle Valo <quic_kvalo@quicinc.com>
Link: https://patch.msgid.link/20240626085854.2500681-5-quic_rgnanase@quicinc.com
parent adf6df96

drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c

+142 −0
Original line number Diff line number Diff line
@@ -253,6 +253,139 @@ htt_print_tx_pdev_stats_sifs_tlv(const void *tag_buf, 
	stats_req->buf_len = len;

}



static void

htt_print_tx_pdev_mu_ppdu_dist_stats_tlv(const void *tag_buf, u16 tag_len,

					 struct debug_htt_stats_req *stats_req)

{

	const struct ath12k_htt_tx_pdev_mu_ppdu_dist_stats_tlv *htt_stats_buf = tag_buf;

	char *mode;

	u8 j, hw_mode, i, str_buf_len;

	u8 *buf = stats_req->buf;

	u32 len = stats_req->buf_len;

	u32 buf_len = ATH12K_HTT_STATS_BUF_SIZE;

	u32 stats_value;

	u8 max_ppdu = ATH12K_HTT_STATS_MAX_NUM_MU_PPDU_PER_BURST;

	u8 max_sched = ATH12K_HTT_STATS_MAX_NUM_SCHED_STATUS;

	char str_buf[ATH12K_HTT_MAX_STRING_LEN];



	if (tag_len < sizeof(*htt_stats_buf))

		return;



	hw_mode = le32_to_cpu(htt_stats_buf->hw_mode);



	switch (hw_mode) {

	case ATH12K_HTT_STATS_HWMODE_AC:

		len += scnprintf(buf + len, buf_len - len,

				 "HTT_TX_PDEV_AC_MU_PPDU_DISTRIBUTION_STATS:\n");

		mode = "ac";

		break;

	case ATH12K_HTT_STATS_HWMODE_AX:

		len += scnprintf(buf + len, buf_len - len,

				 "HTT_TX_PDEV_AX_MU_PPDU_DISTRIBUTION_STATS:\n");

		mode = "ax";

		break;

	case ATH12K_HTT_STATS_HWMODE_BE:

		len += scnprintf(buf + len, buf_len - len,

				 "HTT_TX_PDEV_BE_MU_PPDU_DISTRIBUTION_STATS:\n");

		mode = "be";

		break;

	default:

		return;

	}



	for (i = 0; i < ATH12K_HTT_STATS_NUM_NR_BINS ; i++) {

		len += scnprintf(buf + len, buf_len - len,

				 "%s_mu_mimo_num_seq_posted_nr%u = %u\n", mode,

				 ((i + 1) * 4), htt_stats_buf->num_seq_posted[i]);

		str_buf_len = 0;

		memset(str_buf, 0x0, sizeof(str_buf));

		for (j = 0; j < ATH12K_HTT_STATS_MAX_NUM_MU_PPDU_PER_BURST ; j++) {

			stats_value = le32_to_cpu(htt_stats_buf->num_ppdu_posted_per_burst

						  [i * max_ppdu + j]);

			str_buf_len += scnprintf(&str_buf[str_buf_len],

						ATH12K_HTT_MAX_STRING_LEN - str_buf_len,

						" %u:%u,", j, stats_value);

		}

		/* To overwrite the last trailing comma */

		str_buf[str_buf_len - 1] = '\0';

		len += scnprintf(buf + len, buf_len - len,

				 "%s_mu_mimo_num_ppdu_posted_per_burst_nr%u = %s\n",

				 mode, ((i + 1) * 4), str_buf);

		str_buf_len = 0;

		memset(str_buf, 0x0, sizeof(str_buf));

		for (j = 0; j < ATH12K_HTT_STATS_MAX_NUM_MU_PPDU_PER_BURST ; j++) {

			stats_value = le32_to_cpu(htt_stats_buf->num_ppdu_cmpl_per_burst

						  [i * max_ppdu + j]);

			str_buf_len += scnprintf(&str_buf[str_buf_len],

						ATH12K_HTT_MAX_STRING_LEN - str_buf_len,

						" %u:%u,", j, stats_value);

		}

		/* To overwrite the last trailing comma */

		str_buf[str_buf_len - 1] = '\0';

		len += scnprintf(buf + len, buf_len - len,

				 "%s_mu_mimo_num_ppdu_completed_per_burst_nr%u = %s\n",

				 mode, ((i + 1) * 4), str_buf);

		str_buf_len = 0;

		memset(str_buf, 0x0, sizeof(str_buf));

		for (j = 0; j < ATH12K_HTT_STATS_MAX_NUM_SCHED_STATUS ; j++) {

			stats_value = le32_to_cpu(htt_stats_buf->num_seq_term_status

						  [i * max_sched + j]);

			str_buf_len += scnprintf(&str_buf[str_buf_len],

						ATH12K_HTT_MAX_STRING_LEN - str_buf_len,

						" %u:%u,", j, stats_value);

		}

		/* To overwrite the last trailing comma */

		str_buf[str_buf_len - 1] = '\0';

		len += scnprintf(buf + len, buf_len - len,

				 "%s_mu_mimo_num_seq_term_status_nr%u = %s\n\n",

				 mode, ((i + 1) * 4), str_buf);

	}



	stats_req->buf_len = len;

}



static void

htt_print_tx_pdev_stats_sifs_hist_tlv(const void *tag_buf,

				      u16 tag_len,

				      struct debug_htt_stats_req *stats_req)

{

	const struct ath12k_htt_tx_pdev_stats_sifs_hist_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;

	u16 num_elems = min_t(u16, (tag_len >> 2),

			      ATH12K_HTT_TX_PDEV_MAX_SIFS_BURST_HIST_STATS);



	len += scnprintf(buf + len, buf_len - len,

			 "HTT_TX_PDEV_STATS_SIFS_HIST_TLV:\n");



	len += print_array_to_buf(buf, len, "sifs_hist_status",

				  htt_stats_buf->sifs_hist_status, num_elems, "\n\n");



	stats_req->buf_len = len;

}



static void

htt_print_pdev_ctrl_path_tx_stats_tlv(const void *tag_buf, u16 tag_len,

				      struct debug_htt_stats_req *stats_req)

{

	const struct ath12k_htt_pdev_ctrl_path_tx_stats_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 (len < sizeof(*htt_stats_buf))

		return;



	len += scnprintf(buf + len, buf_len - len,

			 "HTT_TX_PDEV_STATS_CTRL_PATH_TX_STATS:\n");

	len += print_array_to_buf(buf, len, "fw_tx_mgmt_subtype",

				 htt_stats_buf->fw_tx_mgmt_subtype,

				 ATH12K_HTT_STATS_SUBTYPE_MAX, "\n\n");



	stats_req->buf_len = len;

}



static int ath12k_dbg_htt_ext_stats_parse(struct ath12k_base *ab,

					  u16 tag, u16 len, const void *tag_buf,

					  void *user_data)
@@ -272,6 +405,15 @@ static int ath12k_dbg_htt_ext_stats_parse(struct ath12k_base *ab, 
	case HTT_STATS_TX_PDEV_FLUSH_TAG:

		htt_print_tx_pdev_stats_flush_tlv(tag_buf, len, stats_req);

		break;

	case HTT_STATS_TX_PDEV_SIFS_HIST_TAG:

		htt_print_tx_pdev_stats_sifs_hist_tlv(tag_buf, len, stats_req);

		break;

	case HTT_STATS_PDEV_CTRL_PATH_TX_STATS_TAG:

		htt_print_pdev_ctrl_path_tx_stats_tlv(tag_buf, len, stats_req);

		break;

	case HTT_STATS_MU_PPDU_DIST_TAG:

		htt_print_tx_pdev_mu_ppdu_dist_stats_tlv(tag_buf, len, stats_req);

		break;

	default:

		break;

	}

drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h

+39 −0
Original line number Diff line number Diff line
@@ -11,6 +11,8 @@ 
#define ATH12K_HTT_STATS_COOKIE_LSB		GENMASK_ULL(31, 0)

#define ATH12K_HTT_STATS_COOKIE_MSB		GENMASK_ULL(63, 32)

#define ATH12K_HTT_STATS_MAGIC_VALUE		0xF0F0F0F0

#define ATH12K_HTT_STATS_SUBTYPE_MAX		16

#define ATH12K_HTT_MAX_STRING_LEN		256



#define ATH12K_HTT_STATS_RESET_BITMAP32_OFFSET(_idx)	((_idx) & 0x1f)

#define ATH12K_HTT_STATS_RESET_BITMAP64_OFFSET(_idx)	((_idx) & 0x3f)
@@ -133,6 +135,9 @@ enum ath12k_dbg_htt_tlv_tag { 
	HTT_STATS_TX_PDEV_UNDERRUN_TAG			= 1,

	HTT_STATS_TX_PDEV_SIFS_TAG			= 2,

	HTT_STATS_TX_PDEV_FLUSH_TAG			= 3,

	HTT_STATS_TX_PDEV_SIFS_HIST_TAG			= 67,

	HTT_STATS_PDEV_CTRL_PATH_TX_STATS_TAG		= 102,

	HTT_STATS_MU_PPDU_DIST_TAG			= 129,



	HTT_STATS_MAX_TAG,

};
@@ -142,6 +147,18 @@ enum ath12k_dbg_htt_tlv_tag { 
#define ATH12K_HTT_TX_PDEV_MAX_SIFS_BURST_STATS		9

#define ATH12K_HTT_TX_PDEV_MAX_FLUSH_REASON_STATS	150



/* MU MIMO distribution stats is a 2-dimensional array

 * with dimension one denoting stats for nr4[0] or nr8[1]

 */

#define ATH12K_HTT_STATS_NUM_NR_BINS			2

#define ATH12K_HTT_STATS_MAX_NUM_MU_PPDU_PER_BURST	10

#define ATH12K_HTT_TX_PDEV_MAX_SIFS_BURST_HIST_STATS	10

#define ATH12K_HTT_STATS_MAX_NUM_SCHED_STATUS		9

#define ATH12K_HTT_STATS_NUM_SCHED_STATUS_WORDS		\

	(ATH12K_HTT_STATS_NUM_NR_BINS * ATH12K_HTT_STATS_MAX_NUM_SCHED_STATUS)

#define ATH12K_HTT_STATS_MU_PPDU_PER_BURST_WORDS	\

	(ATH12K_HTT_STATS_NUM_NR_BINS * ATH12K_HTT_STATS_MAX_NUM_MU_PPDU_PER_BURST)



enum ath12k_htt_tx_pdev_underrun_enum {

	HTT_STATS_TX_PDEV_NO_DATA_UNDERRUN		= 0,

	HTT_STATS_TX_PDEV_DATA_UNDERRUN_BETWEEN_MPDU	= 1,
@@ -258,4 +275,26 @@ struct ath12k_htt_tx_pdev_stats_sifs_tlv { 
	DECLARE_FLEX_ARRAY(__le32, sifs_status);

} __packed;



struct ath12k_htt_pdev_ctrl_path_tx_stats_tlv {

	__le32 fw_tx_mgmt_subtype[ATH12K_HTT_STATS_SUBTYPE_MAX];

} __packed;



struct ath12k_htt_tx_pdev_stats_sifs_hist_tlv {

	DECLARE_FLEX_ARRAY(__le32, sifs_hist_status);

} __packed;



enum ath12k_htt_stats_hw_mode {

	ATH12K_HTT_STATS_HWMODE_AC = 0,

	ATH12K_HTT_STATS_HWMODE_AX = 1,

	ATH12K_HTT_STATS_HWMODE_BE = 2,

};



struct ath12k_htt_tx_pdev_mu_ppdu_dist_stats_tlv {

	__le32 hw_mode;

	__le32 num_seq_term_status[ATH12K_HTT_STATS_NUM_SCHED_STATUS_WORDS];

	__le32 num_ppdu_cmpl_per_burst[ATH12K_HTT_STATS_MU_PPDU_PER_BURST_WORDS];

	__le32 num_seq_posted[ATH12K_HTT_STATS_NUM_NR_BINS];

	__le32 num_ppdu_posted_per_burst[ATH12K_HTT_STATS_MU_PPDU_PER_BURST_WORDS];

} __packed;



#endif