wifi: ath12k: Support pdev Puncture Stats

Add support to request pdev puncture stats from firmware through
HTT stats type 46. These stats give the count of number of
subbands used in different wifi standards.

Sample output:
-------------
echo 46 > /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_PDEV_PUNCTURE_STATS_TLV:
mac_id = 0
tx_ofdm_su_last_used_pattern_mask = 0x00000001
tx_ofdm_su_num_subbands_used_cnt_01 = 217
tx_ofdm_su_num_subbands_used_cnt_02 = 0
tx_ofdm_su_num_subbands_used_cnt_03 = 0
.....

HTT_PDEV_PUNCTURE_STATS_TLV:
mac_id = 0
tx_ax_dl_mu_ofdma_last_used_pattern_mask = 0x00000000
tx_ax_dl_mu_ofdma_num_subbands_used_cnt_01 = 0
tx_ax_dl_mu_ofdma_num_subbands_used_cnt_02 = 0
tx_ax_dl_mu_ofdma_num_subbands_used_cnt_03 = 0
.....

HTT_PDEV_PUNCTURE_STATS_TLV:
mac_id = 0
tx_be_dl_mu_ofdma_last_used_pattern_mask = 0x00000000
tx_be_dl_mu_ofdma_num_subbands_used_cnt_01 = 0
tx_be_dl_mu_ofdma_num_subbands_used_cnt_02 = 0
tx_be_dl_mu_ofdma_num_subbands_used_cnt_03 = 0
.....

HTT_PDEV_PUNCTURE_STATS_TLV:
mac_id = 0
rx_ax_ul_mu_ofdma_last_used_pattern_mask = 0x00000000
rx_ax_ul_mu_ofdma_num_subbands_used_cnt_01 = 0
rx_ax_ul_mu_ofdma_num_subbands_used_cnt_02 = 0
rx_ax_ul_mu_ofdma_num_subbands_used_cnt_03 = 0
.....

HTT_PDEV_PUNCTURE_STATS_TLV:
mac_id = 0
rx_be_ul_mu_ofdma_last_used_pattern_mask = 0x00000000
rx_be_ul_mu_ofdma_num_subbands_used_cnt_01 = 0
rx_be_ul_mu_ofdma_num_subbands_used_cnt_02 = 0
rx_be_ul_mu_ofdma_num_subbands_used_cnt_03 = 0
.....

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4

Signed-off-by: Rajat Soni <quic_rajson@quicinc.com>
Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Acked-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20241218035711.2573584-3-quic_rdevanat@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>

diff --git a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
index 9294ef41a169e4f49716c17e746e65807114cb9f..41e4ef2ef3af6057f969c49872f3f4330a731bd9 100644 (file)
--- a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
+++ b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.c
@@ -3522,6 +3522,104 @@ ath12k_htt_print_ast_entry_tlv(const void *tag_buf, u16 tag_len,
        stats_req->buf_len = len;
 }
 
+static const char*
+ath12k_htt_get_punct_dir_type_str(enum ath12k_htt_stats_direction direction)
+{
+       switch (direction) {
+       case ATH12K_HTT_STATS_DIRECTION_TX:
+               return "tx";
+       case ATH12K_HTT_STATS_DIRECTION_RX:
+               return "rx";
+       default:
+               return "unknown";
+       }
+}
+
+static const char*
+ath12k_htt_get_punct_ppdu_type_str(enum ath12k_htt_stats_ppdu_type ppdu_type)
+{
+       switch (ppdu_type) {
+       case ATH12K_HTT_STATS_PPDU_TYPE_MODE_SU:
+               return "su";
+       case ATH12K_HTT_STATS_PPDU_TYPE_DL_MU_MIMO:
+               return "dl_mu_mimo";
+       case ATH12K_HTT_STATS_PPDU_TYPE_UL_MU_MIMO:
+               return "ul_mu_mimo";
+       case ATH12K_HTT_STATS_PPDU_TYPE_DL_MU_OFDMA:
+               return "dl_mu_ofdma";
+       case ATH12K_HTT_STATS_PPDU_TYPE_UL_MU_OFDMA:
+               return "ul_mu_ofdma";
+       default:
+               return "unknown";
+       }
+}
+
+static const char*
+ath12k_htt_get_punct_pream_type_str(enum ath12k_htt_stats_param_type pream_type)
+{
+       switch (pream_type) {
+       case ATH12K_HTT_STATS_PREAM_OFDM:
+               return "ofdm";
+       case ATH12K_HTT_STATS_PREAM_CCK:
+               return "cck";
+       case ATH12K_HTT_STATS_PREAM_HT:
+               return "ht";
+       case ATH12K_HTT_STATS_PREAM_VHT:
+               return "ac";
+       case ATH12K_HTT_STATS_PREAM_HE:
+               return "ax";
+       case ATH12K_HTT_STATS_PREAM_EHT:
+               return "be";
+       default:
+               return "unknown";
+       }
+}
+
+static void
+ath12k_htt_print_puncture_stats_tlv(const void *tag_buf, u16 tag_len,
+                                   struct debug_htt_stats_req *stats_req)
+{
+       const struct ath12k_htt_pdev_puncture_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;
+       const char *direction;
+       const char *ppdu_type;
+       const char *preamble;
+       u32 mac_id__word;
+       u32 subband_limit;
+       u8 i;
+
+       if (tag_len < sizeof(*stats_buf))
+               return;
+
+       mac_id__word = le32_to_cpu(stats_buf->mac_id__word);
+       subband_limit = min(le32_to_cpu(stats_buf->subband_cnt),
+                           ATH12K_HTT_PUNCT_STATS_MAX_SUBBAND_CNT);
+
+       direction = ath12k_htt_get_punct_dir_type_str(le32_to_cpu(stats_buf->direction));
+       ppdu_type = ath12k_htt_get_punct_ppdu_type_str(le32_to_cpu(stats_buf->ppdu_type));
+       preamble = ath12k_htt_get_punct_pream_type_str(le32_to_cpu(stats_buf->preamble));
+
+       len += scnprintf(buf + len, buf_len - len, "HTT_PDEV_PUNCTURE_STATS_TLV:\n");
+       len += scnprintf(buf + len, buf_len - len, "mac_id = %u\n",
+                        u32_get_bits(mac_id__word, ATH12K_HTT_STATS_MAC_ID));
+       len += scnprintf(buf + len, buf_len - len,
+                        "%s_%s_%s_last_used_pattern_mask = 0x%08x\n",
+                        direction, preamble, ppdu_type,
+                        le32_to_cpu(stats_buf->last_used_pattern_mask));
+
+       for (i = 0; i < subband_limit; i++) {
+               len += scnprintf(buf + len, buf_len - len,
+                                "%s_%s_%s_num_subbands_used_cnt_%02d = %u\n",
+                                direction, preamble, ppdu_type, i + 1,
+                                le32_to_cpu(stats_buf->num_subbands_used_cnt[i]));
+       }
+       len += scnprintf(buf + len, buf_len - len, "\n");
+
+       stats_req->buf_len = len;
+}
+
 static void
 ath12k_htt_print_dmac_reset_stats_tlv(const void *tag_buf, u16 tag_len,
                                      struct debug_htt_stats_req *stats_req)
@@ -3933,6 +4031,9 @@ static int ath12k_dbg_htt_ext_stats_parse(struct ath12k_base *ab,
        case HTT_STATS_AST_ENTRY_TAG:
                ath12k_htt_print_ast_entry_tlv(tag_buf, len, stats_req);
                break;
+       case HTT_STATS_PDEV_PUNCTURE_STATS_TAG:
+               ath12k_htt_print_puncture_stats_tlv(tag_buf, len, stats_req);
+               break;
        case HTT_STATS_DMAC_RESET_STATS_TAG:
                ath12k_htt_print_dmac_reset_stats_tlv(tag_buf, len, stats_req);
                break;

diff --git a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h
index 9a9dd368c5d653c8634610491c7def2f5694d498..4b59976fbc350050262255a4a2126e813c8122a4 100644 (file)
--- a/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h
+++ b/drivers/net/wireless/ath/ath12k/debugfs_htt_stats.h
@@ -143,6 +143,7 @@ enum ath12k_dbg_htt_ext_stats_type {
        ATH12K_DBG_HTT_EXT_PDEV_PER_STATS               = 40,
        ATH12K_DBG_HTT_EXT_AST_ENTRIES                  = 41,
        ATH12K_DBG_HTT_EXT_STATS_SOC_ERROR              = 45,
+       ATH12K_DBG_HTT_DBG_PDEV_PUNCTURE_STATS          = 46,
        ATH12K_DBG_HTT_EXT_STATS_PDEV_SCHED_ALGO        = 49,
        ATH12K_DBG_HTT_EXT_STATS_MANDATORY_MUOFDMA      = 51,
        ATH12K_DGB_HTT_EXT_STATS_PDEV_MBSSID_CTRL_FRAME = 54,
@@ -223,6 +224,7 @@ enum ath12k_dbg_htt_tlv_tag {
        HTT_STATS_TXBF_OFDMA_AX_STEER_STATS_TAG         = 150,
        HTT_STATS_DMAC_RESET_STATS_TAG                  = 155,
        HTT_STATS_PHY_TPC_STATS_TAG                     = 157,
+       HTT_STATS_PDEV_PUNCTURE_STATS_TAG               = 158,
        HTT_STATS_PDEV_SCHED_ALGO_OFDMA_STATS_TAG       = 165,
        HTT_STATS_TXBF_OFDMA_AX_STEER_MPDU_STATS_TAG    = 172,
        HTT_STATS_PDEV_MBSSID_CTRL_FRAME_STATS_TAG      = 176,
@@ -1311,6 +1313,42 @@ struct ath12k_htt_ast_entry_tlv {
        __le32 info;
 } __packed;
 
+enum ath12k_htt_stats_direction {
+       ATH12K_HTT_STATS_DIRECTION_TX,
+       ATH12K_HTT_STATS_DIRECTION_RX
+};
+
+enum ath12k_htt_stats_ppdu_type {
+       ATH12K_HTT_STATS_PPDU_TYPE_MODE_SU,
+       ATH12K_HTT_STATS_PPDU_TYPE_DL_MU_MIMO,
+       ATH12K_HTT_STATS_PPDU_TYPE_UL_MU_MIMO,
+       ATH12K_HTT_STATS_PPDU_TYPE_DL_MU_OFDMA,
+       ATH12K_HTT_STATS_PPDU_TYPE_UL_MU_OFDMA
+};
+
+enum ath12k_htt_stats_param_type {
+       ATH12K_HTT_STATS_PREAM_OFDM,
+       ATH12K_HTT_STATS_PREAM_CCK,
+       ATH12K_HTT_STATS_PREAM_HT,
+       ATH12K_HTT_STATS_PREAM_VHT,
+       ATH12K_HTT_STATS_PREAM_HE,
+       ATH12K_HTT_STATS_PREAM_EHT,
+       ATH12K_HTT_STATS_PREAM_RSVD1,
+       ATH12K_HTT_STATS_PREAM_COUNT,
+};
+
+#define ATH12K_HTT_PUNCT_STATS_MAX_SUBBAND_CNT 32
+
+struct ath12k_htt_pdev_puncture_stats_tlv {
+       __le32 mac_id__word;
+       __le32 direction;
+       __le32 preamble;
+       __le32 ppdu_type;
+       __le32 subband_cnt;
+       __le32 last_used_pattern_mask;
+       __le32 num_subbands_used_cnt[ATH12K_HTT_PUNCT_STATS_MAX_SUBBAND_CNT];
+} __packed;
+
 struct ath12k_htt_dmac_reset_stats_tlv {
        __le32 reset_count;
        __le32 reset_time_lo_ms;