root/drivers/net/wireless/ath/ath12k/debugfs.c
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
 * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
 * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
 */

#include "core.h"
#include "dp_tx.h"
#include "debug.h"
#include "debugfs.h"
#include "debugfs_htt_stats.h"

static ssize_t ath12k_write_simulate_radar(struct file *file,
                                           const char __user *user_buf,
                                           size_t count, loff_t *ppos)
{
        struct ath12k *ar = file->private_data;
        int ret;

        wiphy_lock(ath12k_ar_to_hw(ar)->wiphy);
        ret = ath12k_wmi_simulate_radar(ar);
        if (ret)
                goto exit;

        ret = count;
exit:
        wiphy_unlock(ath12k_ar_to_hw(ar)->wiphy);
        return ret;
}

static const struct file_operations fops_simulate_radar = {
        .write = ath12k_write_simulate_radar,
        .open = simple_open
};

static ssize_t ath12k_read_simulate_fw_crash(struct file *file,
                                             char __user *user_buf,
                                             size_t count, loff_t *ppos)
{
        const char buf[] =
                "To simulate firmware crash write one of the keywords to this file:\n"
                "`assert` - send WMI_FORCE_FW_HANG_CMDID to firmware to cause assert.\n";

        return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
}

static ssize_t
ath12k_write_simulate_fw_crash(struct file *file,
                               const char __user *user_buf,
                               size_t count, loff_t *ppos)
{
        struct ath12k_base *ab = file->private_data;
        struct ath12k_pdev *pdev;
        struct ath12k *ar = NULL;
        char buf[32] = {};
        int i, ret;
        ssize_t rc;

        /* filter partial writes and invalid commands */
        if (*ppos != 0 || count >= sizeof(buf) || count == 0)
                return -EINVAL;

        rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
        if (rc < 0)
                return rc;

        /* drop the possible '\n' from the end */
        if (buf[*ppos - 1] == '\n')
                buf[*ppos - 1] = '\0';

        for (i = 0; i < ab->num_radios; i++) {
                pdev = &ab->pdevs[i];
                ar = pdev->ar;
                if (ar)
                        break;
        }

        if (!ar)
                return -ENETDOWN;

        if (!strcmp(buf, "assert")) {
                ath12k_info(ab, "simulating firmware assert crash\n");
                ret = ath12k_wmi_force_fw_hang_cmd(ar,
                                                   ATH12K_WMI_FW_HANG_ASSERT_TYPE,
                                                   ATH12K_WMI_FW_HANG_DELAY);
        } else {
                return -EINVAL;
        }

        if (ret) {
                ath12k_warn(ab, "failed to simulate firmware crash: %d\n", ret);
                return ret;
        }

        return count;
}

static const struct file_operations fops_simulate_fw_crash = {
        .read = ath12k_read_simulate_fw_crash,
        .write = ath12k_write_simulate_fw_crash,
        .open = simple_open,
        .owner = THIS_MODULE,
        .llseek = default_llseek,
};

static ssize_t ath12k_write_tpc_stats_type(struct file *file,
                                           const char __user *user_buf,
                                           size_t count, loff_t *ppos)
{
        struct ath12k *ar = file->private_data;
        u8 type;
        int ret;

        ret = kstrtou8_from_user(user_buf, count, 0, &type);
        if (ret)
                return ret;

        if (type >= WMI_HALPHY_PDEV_TX_STATS_MAX)
                return -EINVAL;

        spin_lock_bh(&ar->data_lock);
        ar->debug.tpc_stats_type = type;
        spin_unlock_bh(&ar->data_lock);

        return count;
}

static int ath12k_debug_tpc_stats_request(struct ath12k *ar)
{
        enum wmi_halphy_ctrl_path_stats_id tpc_stats_sub_id;
        struct ath12k_base *ab = ar->ab;
        int ret;

        lockdep_assert_wiphy(ath12k_ar_to_hw(ar)->wiphy);

        reinit_completion(&ar->debug.tpc_complete);

        spin_lock_bh(&ar->data_lock);
        ar->debug.tpc_request = true;
        tpc_stats_sub_id = ar->debug.tpc_stats_type;
        spin_unlock_bh(&ar->data_lock);

        ret = ath12k_wmi_send_tpc_stats_request(ar, tpc_stats_sub_id);
        if (ret) {
                ath12k_warn(ab, "failed to request pdev tpc stats: %d\n", ret);
                spin_lock_bh(&ar->data_lock);
                ar->debug.tpc_request = false;
                spin_unlock_bh(&ar->data_lock);
                return ret;
        }

        return 0;
}

static int ath12k_get_tpc_ctl_mode_idx(struct wmi_tpc_stats_arg *tpc_stats,
                                       enum wmi_tpc_pream_bw pream_bw, int *mode_idx)
{
        u32 chan_freq = le32_to_cpu(tpc_stats->tpc_config.chan_freq);
        u8 band;

        band = ((chan_freq > ATH12K_MIN_6GHZ_FREQ) ? NL80211_BAND_6GHZ :
                ((chan_freq > ATH12K_MIN_5GHZ_FREQ) ? NL80211_BAND_5GHZ :
                NL80211_BAND_2GHZ));

        if (band == NL80211_BAND_5GHZ || band == NL80211_BAND_6GHZ) {
                switch (pream_bw) {
                case WMI_TPC_PREAM_HT20:
                case WMI_TPC_PREAM_VHT20:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_HT_VHT20_5GHZ_6GHZ;
                        break;
                case WMI_TPC_PREAM_HE20:
                case WMI_TPC_PREAM_EHT20:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_HE_EHT20_5GHZ_6GHZ;
                        break;
                case WMI_TPC_PREAM_HT40:
                case WMI_TPC_PREAM_VHT40:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_HT_VHT40_5GHZ_6GHZ;
                        break;
                case WMI_TPC_PREAM_HE40:
                case WMI_TPC_PREAM_EHT40:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_HE_EHT40_5GHZ_6GHZ;
                        break;
                case WMI_TPC_PREAM_VHT80:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_VHT80_5GHZ_6GHZ;
                        break;
                case WMI_TPC_PREAM_EHT60:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_EHT80_SU_PUNC20;
                        break;
                case WMI_TPC_PREAM_HE80:
                case WMI_TPC_PREAM_EHT80:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_HE_EHT80_5GHZ_6GHZ;
                        break;
                case WMI_TPC_PREAM_VHT160:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_VHT160_5GHZ_6GHZ;
                        break;
                case WMI_TPC_PREAM_EHT120:
                case WMI_TPC_PREAM_EHT140:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_EHT160_SU_PUNC20;
                        break;
                case WMI_TPC_PREAM_HE160:
                case WMI_TPC_PREAM_EHT160:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_HE_EHT160_5GHZ_6GHZ;
                        break;
                case WMI_TPC_PREAM_EHT200:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_EHT320_SU_PUNC120;
                        break;
                case WMI_TPC_PREAM_EHT240:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_EHT320_SU_PUNC80;
                        break;
                case WMI_TPC_PREAM_EHT280:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_EHT320_SU_PUNC40;
                        break;
                case WMI_TPC_PREAM_EHT320:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_HE_EHT320_5GHZ_6GHZ;
                        break;
                default:
                        /* for 5GHZ and 6GHZ, default case will be for OFDM */
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_LEGACY_5GHZ_6GHZ;
                        break;
                }
        } else {
                switch (pream_bw) {
                case WMI_TPC_PREAM_OFDM:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_LEGACY_2GHZ;
                        break;
                case WMI_TPC_PREAM_HT20:
                case WMI_TPC_PREAM_VHT20:
                case WMI_TPC_PREAM_HE20:
                case WMI_TPC_PREAM_EHT20:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_HT20_2GHZ;
                        break;
                case WMI_TPC_PREAM_HT40:
                case WMI_TPC_PREAM_VHT40:
                case WMI_TPC_PREAM_HE40:
                case WMI_TPC_PREAM_EHT40:
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_HT40_2GHZ;
                        break;
                default:
                        /* for 2GHZ, default case will be CCK */
                        *mode_idx = ATH12K_TPC_STATS_CTL_MODE_CCK_2GHZ;
                        break;
                }
        }

        return 0;
}

static s16 ath12k_tpc_get_rate(struct ath12k *ar,
                               struct wmi_tpc_stats_arg *tpc_stats,
                               u32 rate_idx, u32 num_chains, u32 rate_code,
                               enum wmi_tpc_pream_bw pream_bw,
                               enum wmi_halphy_ctrl_path_stats_id type,
                               u32 eht_rate_idx)
{
        u32 tot_nss, tot_modes, txbf_on_off, index_offset1, index_offset2, index_offset3;
        u8 chain_idx, stm_idx, num_streams;
        bool is_mu, txbf_enabled = 0;
        s8 rates_ctl_min, tpc_ctl;
        s16 rates, tpc, reg_pwr;
        u16 rate1, rate2;
        int mode, ret;

        num_streams = 1 + ATH12K_HW_NSS(rate_code);
        chain_idx = num_chains - 1;
        stm_idx = num_streams - 1;
        mode = -1;

        ret = ath12k_get_tpc_ctl_mode_idx(tpc_stats, pream_bw, &mode);
        if (ret) {
                ath12k_warn(ar->ab, "Invalid mode index received\n");
                tpc = TPC_INVAL;
                goto out;
        }

        if (num_chains < num_streams) {
                tpc = TPC_INVAL;
                goto out;
        }

        if (le32_to_cpu(tpc_stats->tpc_config.num_tx_chain) <= 1) {
                tpc = TPC_INVAL;
                goto out;
        }

        if (type == WMI_HALPHY_PDEV_TX_SUTXBF_STATS ||
            type == WMI_HALPHY_PDEV_TX_MUTXBF_STATS)
                txbf_enabled = 1;

        if (type == WMI_HALPHY_PDEV_TX_MU_STATS ||
            type == WMI_HALPHY_PDEV_TX_MUTXBF_STATS) {
                is_mu = true;
        } else {
                is_mu = false;
        }

        /* Below is the min calculation of ctl array, rates array and
         * regulator power table. tpc is minimum of all 3
         */
        if (pream_bw >= WMI_TPC_PREAM_EHT20 && pream_bw <= WMI_TPC_PREAM_EHT320) {
                rate2 = tpc_stats->rates_array2.rate_array[eht_rate_idx];
                if (is_mu)
                        rates = u32_get_bits(rate2, ATH12K_TPC_RATE_ARRAY_MU);
                else
                        rates = u32_get_bits(rate2, ATH12K_TPC_RATE_ARRAY_SU);
        } else {
                rate1 = tpc_stats->rates_array1.rate_array[rate_idx];
                if (is_mu)
                        rates = u32_get_bits(rate1, ATH12K_TPC_RATE_ARRAY_MU);
                else
                        rates = u32_get_bits(rate1, ATH12K_TPC_RATE_ARRAY_SU);
        }

        if (tpc_stats->tlvs_rcvd & WMI_TPC_CTL_PWR_ARRAY) {
                tot_nss = le32_to_cpu(tpc_stats->ctl_array.tpc_ctl_pwr.d1);
                tot_modes = le32_to_cpu(tpc_stats->ctl_array.tpc_ctl_pwr.d2);
                txbf_on_off = le32_to_cpu(tpc_stats->ctl_array.tpc_ctl_pwr.d3);
                index_offset1 = txbf_on_off * tot_modes * tot_nss;
                index_offset2 = tot_modes * tot_nss;
                index_offset3 = tot_nss;

                tpc_ctl = *(tpc_stats->ctl_array.ctl_pwr_table +
                            chain_idx * index_offset1 + txbf_enabled * index_offset2
                            + mode * index_offset3 + stm_idx);
        } else {
                tpc_ctl = TPC_MAX;
                ath12k_warn(ar->ab,
                            "ctl array for tpc stats not received from fw\n");
        }

        rates_ctl_min = min_t(s16, rates, tpc_ctl);

        reg_pwr = tpc_stats->max_reg_allowed_power.reg_pwr_array[chain_idx];

        if (reg_pwr < 0)
                reg_pwr = TPC_INVAL;

        tpc = min_t(s16, rates_ctl_min, reg_pwr);

        /* MODULATION_LIMIT is the maximum power limit,tpc should not exceed
         * modulation limit even if min tpc of all three array is greater
         * modulation limit
         */
        tpc = min_t(s16, tpc, MODULATION_LIMIT);

out:
        return tpc;
}

static u16 ath12k_get_ratecode(u16 pream_idx, u16 nss, u16 mcs_rate)
{
        u16 mode_type = ~0;

        /* Below assignments are just for printing purpose only */
        switch (pream_idx) {
        case WMI_TPC_PREAM_CCK:
                mode_type = WMI_RATE_PREAMBLE_CCK;
                break;
        case WMI_TPC_PREAM_OFDM:
                mode_type = WMI_RATE_PREAMBLE_OFDM;
                break;
        case WMI_TPC_PREAM_HT20:
        case WMI_TPC_PREAM_HT40:
                mode_type = WMI_RATE_PREAMBLE_HT;
                break;
        case WMI_TPC_PREAM_VHT20:
        case WMI_TPC_PREAM_VHT40:
        case WMI_TPC_PREAM_VHT80:
        case WMI_TPC_PREAM_VHT160:
                mode_type = WMI_RATE_PREAMBLE_VHT;
                break;
        case WMI_TPC_PREAM_HE20:
        case WMI_TPC_PREAM_HE40:
        case WMI_TPC_PREAM_HE80:
        case WMI_TPC_PREAM_HE160:
                mode_type = WMI_RATE_PREAMBLE_HE;
                break;
        case WMI_TPC_PREAM_EHT20:
        case WMI_TPC_PREAM_EHT40:
        case WMI_TPC_PREAM_EHT60:
        case WMI_TPC_PREAM_EHT80:
        case WMI_TPC_PREAM_EHT120:
        case WMI_TPC_PREAM_EHT140:
        case WMI_TPC_PREAM_EHT160:
        case WMI_TPC_PREAM_EHT200:
        case WMI_TPC_PREAM_EHT240:
        case WMI_TPC_PREAM_EHT280:
        case WMI_TPC_PREAM_EHT320:
                mode_type = WMI_RATE_PREAMBLE_EHT;
                if (mcs_rate == 0 || mcs_rate == 1)
                        mcs_rate += 14;
                else
                        mcs_rate -= 2;
                break;
        default:
                return mode_type;
        }
        return ((mode_type << 8) | ((nss & 0x7) << 5) | (mcs_rate & 0x1F));
}

static bool ath12k_he_supports_extra_mcs(struct ath12k *ar, int freq)
{
        struct ath12k_pdev_cap *cap = &ar->pdev->cap;
        struct ath12k_band_cap *cap_band;
        bool extra_mcs_supported;

        if (freq <= ATH12K_2GHZ_MAX_FREQUENCY)
                cap_band = &cap->band[NL80211_BAND_2GHZ];
        else if (freq <= ATH12K_5GHZ_MAX_FREQUENCY)
                cap_band = &cap->band[NL80211_BAND_5GHZ];
        else
                cap_band = &cap->band[NL80211_BAND_6GHZ];

        extra_mcs_supported = u32_get_bits(cap_band->he_cap_info[1],
                                           HE_EXTRA_MCS_SUPPORT);
        return extra_mcs_supported;
}

static int ath12k_tpc_fill_pream(struct ath12k *ar, char *buf, int buf_len, int len,
                                 enum wmi_tpc_pream_bw pream_bw, u32 max_rix,
                                 int max_nss, int max_rates, int pream_type,
                                 enum wmi_halphy_ctrl_path_stats_id tpc_type,
                                 int rate_idx, int eht_rate_idx)
{
        struct wmi_tpc_stats_arg *tpc_stats = ar->debug.tpc_stats;
        int nss, rates, chains;
        u8 active_tx_chains;
        u16 rate_code;
        s16 tpc;

        static const char *const pream_str[] = {
                [WMI_TPC_PREAM_CCK]     = "CCK",
                [WMI_TPC_PREAM_OFDM]    = "OFDM",
                [WMI_TPC_PREAM_HT20]    = "HT20",
                [WMI_TPC_PREAM_HT40]    = "HT40",
                [WMI_TPC_PREAM_VHT20]   = "VHT20",
                [WMI_TPC_PREAM_VHT40]   = "VHT40",
                [WMI_TPC_PREAM_VHT80]   = "VHT80",
                [WMI_TPC_PREAM_VHT160]  = "VHT160",
                [WMI_TPC_PREAM_HE20]    = "HE20",
                [WMI_TPC_PREAM_HE40]    = "HE40",
                [WMI_TPC_PREAM_HE80]    = "HE80",
                [WMI_TPC_PREAM_HE160]   = "HE160",
                [WMI_TPC_PREAM_EHT20]   = "EHT20",
                [WMI_TPC_PREAM_EHT40]   = "EHT40",
                [WMI_TPC_PREAM_EHT60]   = "EHT60",
                [WMI_TPC_PREAM_EHT80]   = "EHT80",
                [WMI_TPC_PREAM_EHT120]   = "EHT120",
                [WMI_TPC_PREAM_EHT140]   = "EHT140",
                [WMI_TPC_PREAM_EHT160]   = "EHT160",
                [WMI_TPC_PREAM_EHT200]   = "EHT200",
                [WMI_TPC_PREAM_EHT240]   = "EHT240",
                [WMI_TPC_PREAM_EHT280]   = "EHT280",
                [WMI_TPC_PREAM_EHT320]   = "EHT320"};

        active_tx_chains = ar->num_tx_chains;

        for (nss = 0; nss < max_nss; nss++) {
                for (rates = 0; rates < max_rates; rates++, rate_idx++, max_rix++) {
                        /* FW send extra MCS(10&11) for VHT and HE rates,
                         *  this is not used. Hence skipping it here
                         */
                        if (pream_type == WMI_RATE_PREAMBLE_VHT &&
                            rates > ATH12K_VHT_MCS_MAX)
                                continue;

                        if (pream_type == WMI_RATE_PREAMBLE_HE &&
                            rates > ATH12K_HE_MCS_MAX)
                                continue;

                        if (pream_type == WMI_RATE_PREAMBLE_EHT &&
                            rates > ATH12K_EHT_MCS_MAX)
                                continue;

                        rate_code = ath12k_get_ratecode(pream_bw, nss, rates);
                        len += scnprintf(buf + len, buf_len - len,
                                         "%d\t %s\t 0x%03x\t", max_rix,
                                         pream_str[pream_bw], rate_code);

                        for (chains = 0; chains < active_tx_chains; chains++) {
                                if (nss > chains) {
                                        len += scnprintf(buf + len,
                                                         buf_len - len,
                                                         "\t%s", "NA");
                                } else {
                                        tpc = ath12k_tpc_get_rate(ar, tpc_stats,
                                                                  rate_idx, chains + 1,
                                                                  rate_code, pream_bw,
                                                                  tpc_type,
                                                                  eht_rate_idx);

                                        if (tpc == TPC_INVAL) {
                                                len += scnprintf(buf + len,
                                                                 buf_len - len, "\tNA");
                                        } else {
                                                len += scnprintf(buf + len,
                                                                 buf_len - len, "\t%d",
                                                                 tpc);
                                        }
                                }
                        }
                        len += scnprintf(buf + len, buf_len - len, "\n");

                        if (pream_type == WMI_RATE_PREAMBLE_EHT)
                                /*For fetching the next eht rates pwr from rates array2*/
                                ++eht_rate_idx;
                }
        }

        return len;
}

static int ath12k_tpc_stats_print(struct ath12k *ar,
                                  struct wmi_tpc_stats_arg *tpc_stats,
                                  char *buf, size_t len,
                                  enum wmi_halphy_ctrl_path_stats_id type)
{
        u32 eht_idx = 0, pream_idx = 0, rate_pream_idx = 0, total_rates = 0, max_rix = 0;
        u32 chan_freq, num_tx_chain, caps, i, j = 1;
        size_t buf_len = ATH12K_TPC_STATS_BUF_SIZE;
        u8 nss, active_tx_chains;
        bool he_ext_mcs;
        static const char *const type_str[WMI_HALPHY_PDEV_TX_STATS_MAX] = {
                [WMI_HALPHY_PDEV_TX_SU_STATS]           = "SU",
                [WMI_HALPHY_PDEV_TX_SUTXBF_STATS]       = "SU WITH TXBF",
                [WMI_HALPHY_PDEV_TX_MU_STATS]           = "MU",
                [WMI_HALPHY_PDEV_TX_MUTXBF_STATS]       = "MU WITH TXBF"};

        u8 max_rates[WMI_TPC_PREAM_MAX] = {
                [WMI_TPC_PREAM_CCK]     = ATH12K_CCK_RATES,
                [WMI_TPC_PREAM_OFDM]    = ATH12K_OFDM_RATES,
                [WMI_TPC_PREAM_HT20]    = ATH12K_HT_RATES,
                [WMI_TPC_PREAM_HT40]    = ATH12K_HT_RATES,
                [WMI_TPC_PREAM_VHT20]   = ATH12K_VHT_RATES,
                [WMI_TPC_PREAM_VHT40]   = ATH12K_VHT_RATES,
                [WMI_TPC_PREAM_VHT80]   = ATH12K_VHT_RATES,
                [WMI_TPC_PREAM_VHT160]  = ATH12K_VHT_RATES,
                [WMI_TPC_PREAM_HE20]    = ATH12K_HE_RATES,
                [WMI_TPC_PREAM_HE40]    = ATH12K_HE_RATES,
                [WMI_TPC_PREAM_HE80]    = ATH12K_HE_RATES,
                [WMI_TPC_PREAM_HE160]   = ATH12K_HE_RATES,
                [WMI_TPC_PREAM_EHT20]   = ATH12K_EHT_RATES,
                [WMI_TPC_PREAM_EHT40]   = ATH12K_EHT_RATES,
                [WMI_TPC_PREAM_EHT60]   = ATH12K_EHT_RATES,
                [WMI_TPC_PREAM_EHT80]   = ATH12K_EHT_RATES,
                [WMI_TPC_PREAM_EHT120]  = ATH12K_EHT_RATES,
                [WMI_TPC_PREAM_EHT140]  = ATH12K_EHT_RATES,
                [WMI_TPC_PREAM_EHT160]  = ATH12K_EHT_RATES,
                [WMI_TPC_PREAM_EHT200]  = ATH12K_EHT_RATES,
                [WMI_TPC_PREAM_EHT240]  = ATH12K_EHT_RATES,
                [WMI_TPC_PREAM_EHT280]  = ATH12K_EHT_RATES,
                [WMI_TPC_PREAM_EHT320]  = ATH12K_EHT_RATES};
        static const u8 max_nss[WMI_TPC_PREAM_MAX] = {
                [WMI_TPC_PREAM_CCK]     = ATH12K_NSS_1,
                [WMI_TPC_PREAM_OFDM]    = ATH12K_NSS_1,
                [WMI_TPC_PREAM_HT20]    = ATH12K_NSS_4,
                [WMI_TPC_PREAM_HT40]    = ATH12K_NSS_4,
                [WMI_TPC_PREAM_VHT20]   = ATH12K_NSS_8,
                [WMI_TPC_PREAM_VHT40]   = ATH12K_NSS_8,
                [WMI_TPC_PREAM_VHT80]   = ATH12K_NSS_8,
                [WMI_TPC_PREAM_VHT160]  = ATH12K_NSS_4,
                [WMI_TPC_PREAM_HE20]    = ATH12K_NSS_8,
                [WMI_TPC_PREAM_HE40]    = ATH12K_NSS_8,
                [WMI_TPC_PREAM_HE80]    = ATH12K_NSS_8,
                [WMI_TPC_PREAM_HE160]   = ATH12K_NSS_4,
                [WMI_TPC_PREAM_EHT20]   = ATH12K_NSS_4,
                [WMI_TPC_PREAM_EHT40]   = ATH12K_NSS_4,
                [WMI_TPC_PREAM_EHT60]   = ATH12K_NSS_4,
                [WMI_TPC_PREAM_EHT80]   = ATH12K_NSS_4,
                [WMI_TPC_PREAM_EHT120]  = ATH12K_NSS_4,
                [WMI_TPC_PREAM_EHT140]  = ATH12K_NSS_4,
                [WMI_TPC_PREAM_EHT160]  = ATH12K_NSS_4,
                [WMI_TPC_PREAM_EHT200]  = ATH12K_NSS_4,
                [WMI_TPC_PREAM_EHT240]  = ATH12K_NSS_4,
                [WMI_TPC_PREAM_EHT280]  = ATH12K_NSS_4,
                [WMI_TPC_PREAM_EHT320]  = ATH12K_NSS_4};

        u16 rate_idx[WMI_TPC_PREAM_MAX] = {}, eht_rate_idx[WMI_TPC_PREAM_MAX] = {};
        static const u8 pream_type[WMI_TPC_PREAM_MAX] = {
                [WMI_TPC_PREAM_CCK]     = WMI_RATE_PREAMBLE_CCK,
                [WMI_TPC_PREAM_OFDM]    = WMI_RATE_PREAMBLE_OFDM,
                [WMI_TPC_PREAM_HT20]    = WMI_RATE_PREAMBLE_HT,
                [WMI_TPC_PREAM_HT40]    = WMI_RATE_PREAMBLE_HT,
                [WMI_TPC_PREAM_VHT20]   = WMI_RATE_PREAMBLE_VHT,
                [WMI_TPC_PREAM_VHT40]   = WMI_RATE_PREAMBLE_VHT,
                [WMI_TPC_PREAM_VHT80]   = WMI_RATE_PREAMBLE_VHT,
                [WMI_TPC_PREAM_VHT160]  = WMI_RATE_PREAMBLE_VHT,
                [WMI_TPC_PREAM_HE20]    = WMI_RATE_PREAMBLE_HE,
                [WMI_TPC_PREAM_HE40]    = WMI_RATE_PREAMBLE_HE,
                [WMI_TPC_PREAM_HE80]    = WMI_RATE_PREAMBLE_HE,
                [WMI_TPC_PREAM_HE160]   = WMI_RATE_PREAMBLE_HE,
                [WMI_TPC_PREAM_EHT20]   = WMI_RATE_PREAMBLE_EHT,
                [WMI_TPC_PREAM_EHT40]   = WMI_RATE_PREAMBLE_EHT,
                [WMI_TPC_PREAM_EHT60]   = WMI_RATE_PREAMBLE_EHT,
                [WMI_TPC_PREAM_EHT80]   = WMI_RATE_PREAMBLE_EHT,
                [WMI_TPC_PREAM_EHT120]  = WMI_RATE_PREAMBLE_EHT,
                [WMI_TPC_PREAM_EHT140]  = WMI_RATE_PREAMBLE_EHT,
                [WMI_TPC_PREAM_EHT160]  = WMI_RATE_PREAMBLE_EHT,
                [WMI_TPC_PREAM_EHT200]  = WMI_RATE_PREAMBLE_EHT,
                [WMI_TPC_PREAM_EHT240]  = WMI_RATE_PREAMBLE_EHT,
                [WMI_TPC_PREAM_EHT280]  = WMI_RATE_PREAMBLE_EHT,
                [WMI_TPC_PREAM_EHT320]  = WMI_RATE_PREAMBLE_EHT};

        chan_freq = le32_to_cpu(tpc_stats->tpc_config.chan_freq);
        num_tx_chain = le32_to_cpu(tpc_stats->tpc_config.num_tx_chain);
        caps = le32_to_cpu(tpc_stats->tpc_config.caps);

        active_tx_chains = ar->num_tx_chains;
        he_ext_mcs = ath12k_he_supports_extra_mcs(ar, chan_freq);

        /* mcs 12&13 is sent by FW for certain HWs in rate array, skipping it as
         * it is not supported
         */
        if (he_ext_mcs) {
                for (i = WMI_TPC_PREAM_HE20; i <= WMI_TPC_PREAM_HE160; ++i)
                        max_rates[i] = ATH12K_HE_RATES;
        }

        if (type == WMI_HALPHY_PDEV_TX_MU_STATS ||
            type == WMI_HALPHY_PDEV_TX_MUTXBF_STATS) {
                pream_idx = WMI_TPC_PREAM_VHT20;

                for (i = WMI_TPC_PREAM_CCK; i <= WMI_TPC_PREAM_HT40; ++i)
                        max_rix += max_nss[i] * max_rates[i];
        }
        /* Enumerate all the rate indices */
        for (i = rate_pream_idx + 1; i < WMI_TPC_PREAM_MAX; i++) {
                nss = (max_nss[i - 1] < num_tx_chain ?
                       max_nss[i - 1] : num_tx_chain);

                rate_idx[i] = rate_idx[i - 1] + max_rates[i - 1] * nss;

                if (pream_type[i] == WMI_RATE_PREAMBLE_EHT) {
                        eht_rate_idx[j] = eht_rate_idx[j - 1] + max_rates[i] * nss;
                        ++j;
                }
        }

        for (i = 0; i < WMI_TPC_PREAM_MAX; i++) {
                nss = (max_nss[i] < num_tx_chain ?
                       max_nss[i] : num_tx_chain);
                total_rates += max_rates[i] * nss;
        }

        len += scnprintf(buf + len, buf_len - len,
                         "No.of rates-%d\n", total_rates);

        len += scnprintf(buf + len, buf_len - len,
                         "**************** %s ****************\n",
                         type_str[type]);
        len += scnprintf(buf + len, buf_len - len,
                         "\t\t\t\tTPC values for Active chains\n");
        len += scnprintf(buf + len, buf_len - len,
                         "Rate idx Preamble Rate code");

        for (i = 1; i <= active_tx_chains; ++i) {
                len += scnprintf(buf + len, buf_len - len,
                                 "\t%d-Chain", i);
        }

        len += scnprintf(buf + len, buf_len - len, "\n");
        for (i = pream_idx; i < WMI_TPC_PREAM_MAX; i++) {
                if (chan_freq <= 2483) {
                        if (i == WMI_TPC_PREAM_VHT80 ||
                            i == WMI_TPC_PREAM_VHT160 ||
                            i == WMI_TPC_PREAM_HE80 ||
                            i == WMI_TPC_PREAM_HE160 ||
                            (i >= WMI_TPC_PREAM_EHT60 &&
                             i <= WMI_TPC_PREAM_EHT320)) {
                                max_rix += max_nss[i] * max_rates[i];
                                continue;
                        }
                } else {
                        if (i == WMI_TPC_PREAM_CCK) {
                                max_rix += max_rates[i];
                                continue;
                        }
                }

                nss = (max_nss[i] < ar->num_tx_chains ? max_nss[i] : ar->num_tx_chains);

                if (!(caps &
                    (1 << ATH12K_TPC_STATS_SUPPORT_BE_PUNC))) {
                        if (i == WMI_TPC_PREAM_EHT60 || i == WMI_TPC_PREAM_EHT120 ||
                            i == WMI_TPC_PREAM_EHT140 || i == WMI_TPC_PREAM_EHT200 ||
                            i == WMI_TPC_PREAM_EHT240 || i == WMI_TPC_PREAM_EHT280) {
                                max_rix += max_nss[i] * max_rates[i];
                                continue;
                        }
                }

                len = ath12k_tpc_fill_pream(ar, buf, buf_len, len, i, max_rix, nss,
                                            max_rates[i], pream_type[i],
                                            type, rate_idx[i], eht_rate_idx[eht_idx]);

                if (pream_type[i] == WMI_RATE_PREAMBLE_EHT)
                        /*For fetch the next index eht rates from rates array2*/
                        ++eht_idx;

                max_rix += max_nss[i] * max_rates[i];
        }
        return len;
}

static void ath12k_tpc_stats_fill(struct ath12k *ar,
                                  struct wmi_tpc_stats_arg *tpc_stats,
                                  char *buf)
{
        size_t buf_len = ATH12K_TPC_STATS_BUF_SIZE;
        struct wmi_tpc_config_params *tpc;
        size_t len = 0;

        if (!tpc_stats) {
                ath12k_warn(ar->ab, "failed to find tpc stats\n");
                return;
        }

        spin_lock_bh(&ar->data_lock);

        tpc = &tpc_stats->tpc_config;
        len += scnprintf(buf + len, buf_len - len, "\n");
        len += scnprintf(buf + len, buf_len - len,
                         "*************** TPC config **************\n");
        len += scnprintf(buf + len, buf_len - len,
                         "* powers are in 0.25 dBm steps\n");
        len += scnprintf(buf + len, buf_len - len,
                         "reg domain-%d\t\tchan freq-%d\n",
                         tpc->reg_domain, tpc->chan_freq);
        len += scnprintf(buf + len, buf_len - len,
                         "power limit-%d\t\tmax reg-domain Power-%d\n",
                         le32_to_cpu(tpc->twice_max_reg_power) / 2, tpc->power_limit);
        len += scnprintf(buf + len, buf_len - len,
                         "No.of tx chain-%d\t",
                         ar->num_tx_chains);

        ath12k_tpc_stats_print(ar, tpc_stats, buf, len,
                               ar->debug.tpc_stats_type);

        spin_unlock_bh(&ar->data_lock);
}

static int ath12k_open_tpc_stats(struct inode *inode, struct file *file)
{
        struct ath12k *ar = inode->i_private;
        struct ath12k_hw *ah = ath12k_ar_to_ah(ar);
        int ret;

        guard(wiphy)(ath12k_ar_to_hw(ar)->wiphy);

        if (ah->state != ATH12K_HW_STATE_ON) {
                ath12k_warn(ar->ab, "Interface not up\n");
                return -ENETDOWN;
        }

        void *buf __free(kfree) = kzalloc(ATH12K_TPC_STATS_BUF_SIZE, GFP_KERNEL);
        if (!buf)
                return -ENOMEM;

        ret = ath12k_debug_tpc_stats_request(ar);
        if (ret) {
                ath12k_warn(ar->ab, "failed to request tpc stats: %d\n",
                            ret);
                return ret;
        }

        if (!wait_for_completion_timeout(&ar->debug.tpc_complete, TPC_STATS_WAIT_TIME)) {
                spin_lock_bh(&ar->data_lock);
                ath12k_wmi_free_tpc_stats_mem(ar);
                ar->debug.tpc_request = false;
                spin_unlock_bh(&ar->data_lock);
                return -ETIMEDOUT;
        }

        ath12k_tpc_stats_fill(ar, ar->debug.tpc_stats, buf);
        file->private_data = no_free_ptr(buf);

        spin_lock_bh(&ar->data_lock);
        ath12k_wmi_free_tpc_stats_mem(ar);
        spin_unlock_bh(&ar->data_lock);

        return 0;
}

static ssize_t ath12k_read_tpc_stats(struct file *file,
                                     char __user *user_buf,
                                     size_t count, loff_t *ppos)
{
        const char *buf = file->private_data;
        size_t len = strlen(buf);

        return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}

static int ath12k_release_tpc_stats(struct inode *inode,
                                    struct file *file)
{
        kfree(file->private_data);
        return 0;
}

static const struct file_operations fops_tpc_stats = {
        .open = ath12k_open_tpc_stats,
        .release = ath12k_release_tpc_stats,
        .read = ath12k_read_tpc_stats,
        .owner = THIS_MODULE,
        .llseek = default_llseek,
};

static const struct file_operations fops_tpc_stats_type = {
        .write = ath12k_write_tpc_stats_type,
        .open = simple_open,
        .llseek = default_llseek,
};

static ssize_t ath12k_write_extd_rx_stats(struct file *file,
                                          const char __user *ubuf,
                                          size_t count, loff_t *ppos)
{
        struct ath12k *ar = file->private_data;
        struct htt_rx_ring_tlv_filter tlv_filter = {};
        u32 ring_id, rx_filter = 0;
        bool enable;
        int ret, i;

        if (kstrtobool_from_user(ubuf, count, &enable))
                return -EINVAL;

        wiphy_lock(ath12k_ar_to_hw(ar)->wiphy);

        if (!ar->ab->hw_params->rxdma1_enable) {
                ret = count;
                goto exit;
        }

        if (ar->ah->state != ATH12K_HW_STATE_ON) {
                ret = -ENETDOWN;
                goto exit;
        }

        if (enable == ar->debug.extd_rx_stats) {
                ret = count;
                goto exit;
        }

        if (enable) {
                rx_filter =  HTT_RX_FILTER_TLV_FLAGS_MPDU_START;
                rx_filter |= HTT_RX_FILTER_TLV_FLAGS_PPDU_START;
                rx_filter |= HTT_RX_FILTER_TLV_FLAGS_PPDU_END;
                rx_filter |= HTT_RX_FILTER_TLV_FLAGS_PPDU_END_USER_STATS;
                rx_filter |= HTT_RX_FILTER_TLV_FLAGS_PPDU_END_USER_STATS_EXT;
                rx_filter |= HTT_RX_FILTER_TLV_FLAGS_PPDU_END_STATUS_DONE;
                rx_filter |= HTT_RX_FILTER_TLV_FLAGS_PPDU_START_USER_INFO;

                tlv_filter.rx_filter = rx_filter;
                tlv_filter.pkt_filter_flags0 = HTT_RX_FP_MGMT_FILTER_FLAGS0;
                tlv_filter.pkt_filter_flags1 = HTT_RX_FP_MGMT_FILTER_FLAGS1;
                tlv_filter.pkt_filter_flags2 = HTT_RX_FP_CTRL_FILTER_FLASG2;
                tlv_filter.pkt_filter_flags3 = HTT_RX_FP_CTRL_FILTER_FLASG3 |
                        HTT_RX_FP_DATA_FILTER_FLASG3;
        } else {
                tlv_filter = ath12k_mac_mon_status_filter_default;
        }

        ar->debug.rx_filter = tlv_filter.rx_filter;

        for (i = 0; i < ar->ab->hw_params->num_rxdma_per_pdev; i++) {
                ring_id = ar->dp.rxdma_mon_dst_ring[i].ring_id;
                ret = ath12k_dp_tx_htt_rx_filter_setup(ar->ab, ring_id, ar->dp.mac_id + i,
                                                       HAL_RXDMA_MONITOR_DST,
                                                       DP_RXDMA_REFILL_RING_SIZE,
                                                       &tlv_filter);
                if (ret) {
                        ath12k_warn(ar->ab, "failed to set rx filter for monitor status ring\n");
                        goto exit;
                }
        }

        ar->debug.extd_rx_stats = !!enable;
        ret = count;
exit:
        wiphy_unlock(ath12k_ar_to_hw(ar)->wiphy);
        return ret;
}

static ssize_t ath12k_read_extd_rx_stats(struct file *file,
                                         char __user *ubuf,
                                         size_t count, loff_t *ppos)
{
        struct ath12k *ar = file->private_data;
        char buf[32];
        int len = 0;

        wiphy_lock(ath12k_ar_to_hw(ar)->wiphy);
        len = scnprintf(buf, sizeof(buf) - len, "%d\n",
                        ar->debug.extd_rx_stats);
        wiphy_unlock(ath12k_ar_to_hw(ar)->wiphy);

        return simple_read_from_buffer(ubuf, count, ppos, buf, len);
}

static const struct file_operations fops_extd_rx_stats = {
        .read = ath12k_read_extd_rx_stats,
        .write = ath12k_write_extd_rx_stats,
        .open = simple_open,
};

static int ath12k_open_link_stats(struct inode *inode, struct file *file)
{
        struct ath12k_vif *ahvif = inode->i_private;
        size_t len = 0, buf_len = (PAGE_SIZE * 2);
        struct ath12k_link_stats linkstat;
        struct ath12k_link_vif *arvif;
        unsigned long links_map;
        struct wiphy *wiphy;
        int link_id, i;
        char *buf;

        if (!ahvif)
                return -EINVAL;

        buf = kzalloc(buf_len, GFP_KERNEL);
        if (!buf)
                return -ENOMEM;

        wiphy = ahvif->ah->hw->wiphy;
        wiphy_lock(wiphy);

        links_map = ahvif->links_map;
        for_each_set_bit(link_id, &links_map,
                         IEEE80211_MLD_MAX_NUM_LINKS) {
                arvif = rcu_dereference_protected(ahvif->link[link_id],
                                                  lockdep_is_held(&wiphy->mtx));

                spin_lock_bh(&arvif->link_stats_lock);
                linkstat = arvif->link_stats;
                spin_unlock_bh(&arvif->link_stats_lock);

                len += scnprintf(buf + len, buf_len - len,
                                 "link[%d] Tx Unicast Frames Enqueued  = %d\n",
                                 link_id, linkstat.tx_enqueued);
                len += scnprintf(buf + len, buf_len - len,
                                 "link[%d] Tx Broadcast Frames Enqueued = %d\n",
                                 link_id, linkstat.tx_bcast_mcast);
                len += scnprintf(buf + len, buf_len - len,
                                 "link[%d] Tx Frames Completed = %d\n",
                                 link_id, linkstat.tx_completed);
                len += scnprintf(buf + len, buf_len - len,
                                 "link[%d] Tx Frames Dropped = %d\n",
                                 link_id, linkstat.tx_dropped);

                len += scnprintf(buf + len, buf_len - len,
                                 "link[%d] Tx Frame descriptor Encap Type = ",
                                 link_id);

                len += scnprintf(buf + len, buf_len - len,
                                         " raw:%d",
                                         linkstat.tx_encap_type[0]);

                len += scnprintf(buf + len, buf_len - len,
                                         " native_wifi:%d",
                                         linkstat.tx_encap_type[1]);

                len += scnprintf(buf + len, buf_len - len,
                                         " ethernet:%d",
                                         linkstat.tx_encap_type[2]);

                len += scnprintf(buf + len, buf_len - len,
                                 "\nlink[%d] Tx Frame descriptor Encrypt Type = ",
                                 link_id);

                for (i = 0; i < DP_ENCRYPT_TYPE_MAX; i++) {
                        len += scnprintf(buf + len, buf_len - len,
                                         " %d:%d", i,
                                         linkstat.tx_encrypt_type[i]);
                }
                len += scnprintf(buf + len, buf_len - len,
                                 "\nlink[%d] Tx Frame descriptor Type = buffer:%d extension:%d\n",
                                 link_id, linkstat.tx_desc_type[0],
                                 linkstat.tx_desc_type[1]);

                len += scnprintf(buf + len, buf_len - len,
                                "------------------------------------------------------\n");
        }

        wiphy_unlock(wiphy);

        file->private_data = buf;

        return 0;
}

static int ath12k_release_link_stats(struct inode *inode, struct file *file)
{
        kfree(file->private_data);
        return 0;
}

static ssize_t ath12k_read_link_stats(struct file *file,
                                      char __user *user_buf,
                                      size_t count, loff_t *ppos)
{
        const char *buf = file->private_data;
        size_t len = strlen(buf);

        return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}

static const struct file_operations ath12k_fops_link_stats = {
        .open = ath12k_open_link_stats,
        .release = ath12k_release_link_stats,
        .read = ath12k_read_link_stats,
        .owner = THIS_MODULE,
        .llseek = default_llseek,
};

void ath12k_debugfs_op_vif_add(struct ieee80211_hw *hw,
                               struct ieee80211_vif *vif)
{
        struct ath12k_vif *ahvif = ath12k_vif_to_ahvif(vif);

        debugfs_create_file("link_stats", 0400, vif->debugfs_dir, ahvif,
                            &ath12k_fops_link_stats);
}
EXPORT_SYMBOL(ath12k_debugfs_op_vif_add);

static ssize_t ath12k_debugfs_dump_device_dp_stats(struct file *file,
                                                   char __user *user_buf,
                                                   size_t count, loff_t *ppos)
{
        struct ath12k_base *ab = file->private_data;
        struct ath12k_dp *dp = ath12k_ab_to_dp(ab);
        struct ath12k_device_dp_stats *device_stats = &dp->device_stats;
        int len = 0, i, j, ret;
        struct ath12k *ar;
        const int size = 4096;
        static const char *rxdma_err[HAL_REO_ENTR_RING_RXDMA_ECODE_MAX] = {
                [HAL_REO_ENTR_RING_RXDMA_ECODE_OVERFLOW_ERR] = "Overflow",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_MPDU_LEN_ERR] = "MPDU len",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_FCS_ERR] = "FCS",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_DECRYPT_ERR] = "Decrypt",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_TKIP_MIC_ERR] = "TKIP MIC",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_UNECRYPTED_ERR] = "Unencrypt",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_MSDU_LEN_ERR] = "MSDU len",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_MSDU_LIMIT_ERR] = "MSDU limit",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_WIFI_PARSE_ERR] = "WiFi parse",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_AMSDU_PARSE_ERR] = "AMSDU parse",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_SA_TIMEOUT_ERR] = "SA timeout",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_DA_TIMEOUT_ERR] = "DA timeout",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_FLOW_TIMEOUT_ERR] = "Flow timeout",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_FLUSH_REQUEST_ERR] = "Flush req",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_AMSDU_FRAG_ERR] = "AMSDU frag",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_MULTICAST_ECHO_ERR] = "Multicast echo",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_AMSDU_MISMATCH_ERR] = "AMSDU mismatch",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_UNAUTH_WDS_ERR] = "Unauth WDS",
                [HAL_REO_ENTR_RING_RXDMA_ECODE_GRPCAST_AMSDU_WDS_ERR] = "AMSDU or WDS"};

        static const char *reo_err[HAL_REO_DEST_RING_ERROR_CODE_MAX] = {
                [HAL_REO_DEST_RING_ERROR_CODE_DESC_ADDR_ZERO] = "Desc addr zero",
                [HAL_REO_DEST_RING_ERROR_CODE_DESC_INVALID] = "Desc inval",
                [HAL_REO_DEST_RING_ERROR_CODE_AMPDU_IN_NON_BA] =  "AMPDU in non BA",
                [HAL_REO_DEST_RING_ERROR_CODE_NON_BA_DUPLICATE] = "Non BA dup",
                [HAL_REO_DEST_RING_ERROR_CODE_BA_DUPLICATE] = "BA dup",
                [HAL_REO_DEST_RING_ERROR_CODE_FRAME_2K_JUMP] = "Frame 2k jump",
                [HAL_REO_DEST_RING_ERROR_CODE_BAR_2K_JUMP] = "BAR 2k jump",
                [HAL_REO_DEST_RING_ERROR_CODE_FRAME_OOR] = "Frame OOR",
                [HAL_REO_DEST_RING_ERROR_CODE_BAR_OOR] = "BAR OOR",
                [HAL_REO_DEST_RING_ERROR_CODE_NO_BA_SESSION] = "No BA session",
                [HAL_REO_DEST_RING_ERROR_CODE_FRAME_SN_EQUALS_SSN] = "Frame SN equal SSN",
                [HAL_REO_DEST_RING_ERROR_CODE_PN_CHECK_FAILED] = "PN check fail",
                [HAL_REO_DEST_RING_ERROR_CODE_2K_ERR_FLAG_SET] = "2k err",
                [HAL_REO_DEST_RING_ERROR_CODE_PN_ERR_FLAG_SET] = "PN err",
                [HAL_REO_DEST_RING_ERROR_CODE_DESC_BLOCKED] = "Desc blocked"};

        static const char *wbm_rel_src[HAL_WBM_REL_SRC_MODULE_MAX] = {
                [HAL_WBM_REL_SRC_MODULE_TQM] = "TQM",
                [HAL_WBM_REL_SRC_MODULE_RXDMA] = "Rxdma",
                [HAL_WBM_REL_SRC_MODULE_REO] = "Reo",
                [HAL_WBM_REL_SRC_MODULE_FW] = "FW",
                [HAL_WBM_REL_SRC_MODULE_SW] = "SW"};

        char *buf __free(kfree) = kzalloc(size, GFP_KERNEL);

        if (!buf)
                return -ENOMEM;

        len += scnprintf(buf + len, size - len, "DEVICE RX STATS:\n\n");
        len += scnprintf(buf + len, size - len, "err ring pkts: %u\n",
                         device_stats->err_ring_pkts);
        len += scnprintf(buf + len, size - len, "Invalid RBM: %u\n\n",
                         device_stats->invalid_rbm);
        len += scnprintf(buf + len, size - len, "RXDMA errors:\n");

        for (i = 0; i < HAL_REO_ENTR_RING_RXDMA_ECODE_MAX; i++)
                len += scnprintf(buf + len, size - len, "%s: %u\n",
                                 rxdma_err[i], device_stats->rxdma_error[i]);

        len += scnprintf(buf + len, size - len, "\nREO errors:\n");

        for (i = 0; i < HAL_REO_DEST_RING_ERROR_CODE_MAX; i++)
                len += scnprintf(buf + len, size - len, "%s: %u\n",
                                 reo_err[i], device_stats->reo_error[i]);

        len += scnprintf(buf + len, size - len, "\nHAL REO errors:\n");

        for (i = 0; i < DP_REO_DST_RING_MAX; i++)
                len += scnprintf(buf + len, size - len,
                                 "ring%d: %u\n", i,
                                 device_stats->hal_reo_error[i]);

        len += scnprintf(buf + len, size - len, "\nDEVICE TX STATS:\n");
        len += scnprintf(buf + len, size - len, "\nTCL Ring Full Failures:\n");

        for (i = 0; i < DP_TCL_NUM_RING_MAX; i++)
                len += scnprintf(buf + len, size - len, "ring%d: %u\n",
                                 i, device_stats->tx_err.desc_na[i]);

        len += scnprintf(buf + len, size - len,
                         "\nMisc Transmit Failures: %d\n",
                         atomic_read(&device_stats->tx_err.misc_fail));

        len += scnprintf(buf + len, size - len, "\ntx_wbm_rel_source:");

        for (i = 0; i < HAL_WBM_REL_SRC_MODULE_MAX; i++)
                len += scnprintf(buf + len, size - len, " %d:%u",
                                 i, device_stats->tx_wbm_rel_source[i]);

        len += scnprintf(buf + len, size - len, "\n");

        len += scnprintf(buf + len, size - len, "\ntqm_rel_reason:");

        for (i = 0; i < MAX_TQM_RELEASE_REASON; i++)
                len += scnprintf(buf + len, size - len, " %d:%u",
                                 i, device_stats->tqm_rel_reason[i]);

        len += scnprintf(buf + len, size - len, "\n");

        len += scnprintf(buf + len, size - len, "\nfw_tx_status:");

        for (i = 0; i < MAX_FW_TX_STATUS; i++)
                len += scnprintf(buf + len, size - len, " %d:%u",
                                 i, device_stats->fw_tx_status[i]);

        len += scnprintf(buf + len, size - len, "\n");

        len += scnprintf(buf + len, size - len, "\ntx_enqueued:");

        for (i = 0; i < DP_TCL_NUM_RING_MAX; i++)
                len += scnprintf(buf + len, size - len, " %d:%u", i,
                                 device_stats->tx_enqueued[i]);

        len += scnprintf(buf + len, size - len, "\n");

        len += scnprintf(buf + len, size - len, "\ntx_completed:");

        for (i = 0; i < DP_TCL_NUM_RING_MAX; i++)
                len += scnprintf(buf + len, size - len, " %d:%u",
                                 i, device_stats->tx_completed[i]);

        len += scnprintf(buf + len, size - len, "\n");

        rcu_read_lock();
        for (i = 0; i < ab->num_radios; i++) {
                ar = ath12k_mac_get_ar_by_pdev_id(ab, DP_SW2HW_MACID(i));
                if (ar) {
                        len += scnprintf(buf + len, size - len,
                                        "\nradio%d tx_pending: %u\n", i,
                                        atomic_read(&ar->dp.num_tx_pending));
                }
        }
        rcu_read_unlock();

        len += scnprintf(buf + len, size - len, "\nREO Rx Received:\n");

        for (i = 0; i < DP_REO_DST_RING_MAX; i++) {
                len += scnprintf(buf + len, size - len, "Ring%d:", i + 1);

                for (j = 0; j < ATH12K_MAX_DEVICES; j++) {
                        len += scnprintf(buf + len, size - len,
                                        "\t%d:%u", j,
                                         device_stats->reo_rx[i][j]);
                }

                len += scnprintf(buf + len, size - len, "\n");
        }

        len += scnprintf(buf + len, size - len, "\nREO excep MSDU buf type:%u\n",
                         device_stats->reo_excep_msdu_buf_type);

        len += scnprintf(buf + len, size - len, "\nRx WBM REL SRC Errors:\n");

        for (i = 0; i < HAL_WBM_REL_SRC_MODULE_MAX; i++) {
                len += scnprintf(buf + len, size - len, "%s:", wbm_rel_src[i]);

                for (j = 0; j < ATH12K_MAX_DEVICES; j++) {
                        len += scnprintf(buf + len,
                                         size - len,
                                         "\t%d:%u", j,
                                         device_stats->rx_wbm_rel_source[i][j]);
                }

                len += scnprintf(buf + len, size - len, "\n");
        }

        ret = simple_read_from_buffer(user_buf, count, ppos, buf, len);

        return ret;
}

static const struct file_operations fops_device_dp_stats = {
        .read = ath12k_debugfs_dump_device_dp_stats,
        .open = simple_open,
        .owner = THIS_MODULE,
        .llseek = default_llseek,
};

void ath12k_debugfs_pdev_create(struct ath12k_base *ab)
{
        debugfs_create_file("simulate_fw_crash", 0600, ab->debugfs_soc, ab,
                            &fops_simulate_fw_crash);

        debugfs_create_file("device_dp_stats", 0400, ab->debugfs_soc, ab,
                            &fops_device_dp_stats);
}

void ath12k_debugfs_soc_create(struct ath12k_base *ab)
{
        bool dput_needed;
        char soc_name[64] = {};
        struct dentry *debugfs_ath12k;

        debugfs_ath12k = debugfs_lookup("ath12k", NULL);
        if (debugfs_ath12k) {
                /* a dentry from lookup() needs dput() after we don't use it */
                dput_needed = true;
        } else {
                debugfs_ath12k = debugfs_create_dir("ath12k", NULL);
                if (IS_ERR_OR_NULL(debugfs_ath12k))
                        return;
                dput_needed = false;
        }

        scnprintf(soc_name, sizeof(soc_name), "%s-%s", ath12k_bus_str(ab->hif.bus),
                  dev_name(ab->dev));

        ab->debugfs_soc = debugfs_create_dir(soc_name, debugfs_ath12k);

        if (dput_needed)
                dput(debugfs_ath12k);
}

void ath12k_debugfs_soc_destroy(struct ath12k_base *ab)
{
        debugfs_remove_recursive(ab->debugfs_soc);
        ab->debugfs_soc = NULL;
        /* We are not removing ath12k directory on purpose, even if it
         * would be empty. This simplifies the directory handling and it's
         * a minor cosmetic issue to leave an empty ath12k directory to
         * debugfs.
         */
}

static int ath12k_open_vdev_stats(struct inode *inode, struct file *file)
{
        struct ath12k *ar = inode->i_private;
        struct ath12k_fw_stats_req_params param;
        struct ath12k_hw *ah = ath12k_ar_to_ah(ar);
        int ret;

        guard(wiphy)(ath12k_ar_to_hw(ar)->wiphy);

        if (!ah)
                return -ENETDOWN;

        if (ah->state != ATH12K_HW_STATE_ON)
                return -ENETDOWN;

        void *buf __free(kfree) = kzalloc(ATH12K_FW_STATS_BUF_SIZE, GFP_ATOMIC);
        if (!buf)
                return -ENOMEM;

        param.pdev_id = ath12k_mac_get_target_pdev_id(ar);
        /* VDEV stats is always sent for all active VDEVs from FW */
        param.vdev_id = 0;
        param.stats_id = WMI_REQUEST_VDEV_STAT;

        ret = ath12k_mac_get_fw_stats(ar, &param);
        if (ret) {
                ath12k_warn(ar->ab, "failed to request fw vdev stats: %d\n", ret);
                return ret;
        }

        ath12k_wmi_fw_stats_dump(ar, &ar->fw_stats, param.stats_id,
                                 buf);
        ath12k_fw_stats_reset(ar);

        file->private_data = no_free_ptr(buf);

        return 0;
}

static int ath12k_release_vdev_stats(struct inode *inode, struct file *file)
{
        kfree(file->private_data);

        return 0;
}

static ssize_t ath12k_read_vdev_stats(struct file *file,
                                      char __user *user_buf,
                                      size_t count, loff_t *ppos)
{
        const char *buf = file->private_data;
        size_t len = strlen(buf);

        return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}

static const struct file_operations fops_vdev_stats = {
        .open = ath12k_open_vdev_stats,
        .release = ath12k_release_vdev_stats,
        .read = ath12k_read_vdev_stats,
        .owner = THIS_MODULE,
        .llseek = default_llseek,
};

static int ath12k_open_bcn_stats(struct inode *inode, struct file *file)
{
        struct ath12k *ar = inode->i_private;
        struct ath12k_link_vif *arvif;
        struct ath12k_fw_stats_req_params param;
        struct ath12k_hw *ah = ath12k_ar_to_ah(ar);
        int ret;

        guard(wiphy)(ath12k_ar_to_hw(ar)->wiphy);

        if (ah && ah->state != ATH12K_HW_STATE_ON)
                return -ENETDOWN;

        void *buf __free(kfree) = kzalloc(ATH12K_FW_STATS_BUF_SIZE, GFP_ATOMIC);
        if (!buf)
                return -ENOMEM;

        param.pdev_id = ath12k_mac_get_target_pdev_id(ar);
        param.stats_id = WMI_REQUEST_BCN_STAT;

        /* loop all active VDEVs for bcn stats */
        list_for_each_entry(arvif, &ar->arvifs, list) {
                if (!arvif->is_up)
                        continue;

                param.vdev_id = arvif->vdev_id;
                ret = ath12k_mac_get_fw_stats(ar, &param);
                if (ret) {
                        ath12k_warn(ar->ab, "failed to request fw bcn stats: %d\n", ret);
                        return ret;
                }
        }

        ath12k_wmi_fw_stats_dump(ar, &ar->fw_stats, param.stats_id,
                                 buf);
        ath12k_fw_stats_reset(ar);

        file->private_data = no_free_ptr(buf);

        return 0;
}

static int ath12k_release_bcn_stats(struct inode *inode, struct file *file)
{
        kfree(file->private_data);

        return 0;
}

static ssize_t ath12k_read_bcn_stats(struct file *file,
                                     char __user *user_buf,
                                     size_t count, loff_t *ppos)
{
        const char *buf = file->private_data;
        size_t len = strlen(buf);

        return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}

static const struct file_operations fops_bcn_stats = {
        .open = ath12k_open_bcn_stats,
        .release = ath12k_release_bcn_stats,
        .read = ath12k_read_bcn_stats,
        .owner = THIS_MODULE,
        .llseek = default_llseek,
};

static int ath12k_open_pdev_stats(struct inode *inode, struct file *file)
{
        struct ath12k *ar = inode->i_private;
        struct ath12k_hw *ah = ath12k_ar_to_ah(ar);
        struct ath12k_base *ab = ar->ab;
        struct ath12k_fw_stats_req_params param;
        int ret;

        guard(wiphy)(ath12k_ar_to_hw(ar)->wiphy);

        if (ah && ah->state != ATH12K_HW_STATE_ON)
                return -ENETDOWN;

        void *buf __free(kfree) = kzalloc(ATH12K_FW_STATS_BUF_SIZE, GFP_ATOMIC);
        if (!buf)
                return -ENOMEM;

        param.pdev_id = ath12k_mac_get_target_pdev_id(ar);
        param.vdev_id = 0;
        param.stats_id = WMI_REQUEST_PDEV_STAT;

        ret = ath12k_mac_get_fw_stats(ar, &param);
        if (ret) {
                ath12k_warn(ab, "failed to request fw pdev stats: %d\n", ret);
                return ret;
        }

        ath12k_wmi_fw_stats_dump(ar, &ar->fw_stats, param.stats_id,
                                 buf);
        ath12k_fw_stats_reset(ar);

        file->private_data = no_free_ptr(buf);

        return 0;
}

static int ath12k_release_pdev_stats(struct inode *inode, struct file *file)
{
        kfree(file->private_data);

        return 0;
}

static ssize_t ath12k_read_pdev_stats(struct file *file,
                                      char __user *user_buf,
                                      size_t count, loff_t *ppos)
{
        const char *buf = file->private_data;
        size_t len = strlen(buf);

        return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}

static const struct file_operations fops_pdev_stats = {
        .open = ath12k_open_pdev_stats,
        .release = ath12k_release_pdev_stats,
        .read = ath12k_read_pdev_stats,
        .owner = THIS_MODULE,
        .llseek = default_llseek,
};

static
void ath12k_debugfs_fw_stats_register(struct ath12k *ar)
{
        struct dentry *fwstats_dir = debugfs_create_dir("fw_stats",
                                                        ar->debug.debugfs_pdev);

        /* all stats debugfs files created are under "fw_stats" directory
         * created per PDEV
         */
        debugfs_create_file("vdev_stats", 0600, fwstats_dir, ar,
                            &fops_vdev_stats);
        debugfs_create_file("beacon_stats", 0600, fwstats_dir, ar,
                            &fops_bcn_stats);
        debugfs_create_file("pdev_stats", 0600, fwstats_dir, ar,
                            &fops_pdev_stats);

        ath12k_fw_stats_init(ar);
}

void ath12k_debugfs_register(struct ath12k *ar)
{
        struct ath12k_base *ab = ar->ab;
        struct ieee80211_hw *hw = ar->ah->hw;
        char pdev_name[5];
        char buf[100] = {};

        scnprintf(pdev_name, sizeof(pdev_name), "%s%d", "mac", ar->pdev_idx);

        ar->debug.debugfs_pdev = debugfs_create_dir(pdev_name, ab->debugfs_soc);

        /* Create a symlink under ieee80211/phy* */
        scnprintf(buf, sizeof(buf), "../../ath12k/%pd2", ar->debug.debugfs_pdev);
        ar->debug.debugfs_pdev_symlink = debugfs_create_symlink("ath12k",
                                                                hw->wiphy->debugfsdir,
                                                                buf);

        if (ar->mac.sbands[NL80211_BAND_5GHZ].channels) {
                debugfs_create_file("dfs_simulate_radar", 0200,
                                    ar->debug.debugfs_pdev, ar,
                                    &fops_simulate_radar);
        }

        debugfs_create_file("tpc_stats", 0400, ar->debug.debugfs_pdev, ar,
                            &fops_tpc_stats);
        debugfs_create_file("tpc_stats_type", 0200, ar->debug.debugfs_pdev,
                            ar, &fops_tpc_stats_type);
        init_completion(&ar->debug.tpc_complete);

        ath12k_debugfs_htt_stats_register(ar);
        ath12k_debugfs_fw_stats_register(ar);

        debugfs_create_file("ext_rx_stats", 0644,
                            ar->debug.debugfs_pdev, ar,
                            &fops_extd_rx_stats);
}

void ath12k_debugfs_unregister(struct ath12k *ar)
{
        if (!ar->debug.debugfs_pdev)
                return;

        /* Remove symlink under ieee80211/phy* */
        debugfs_remove(ar->debug.debugfs_pdev_symlink);
        debugfs_remove_recursive(ar->debug.debugfs_pdev);
        ar->debug.debugfs_pdev_symlink = NULL;
        ar->debug.debugfs_pdev = NULL;
}