STRUCT IWL_STATISTICS_PHY_NTFY(9)

💅 struct iwl_statistics_phy_ntfy(9) — PHY statistics notification

okay bestie, welcome to the Kernel API Manual ✨ this one is literally a struct in the iwlwifi stats header, and it's giving "the PHY has SO much to tell you." grab a matcha, we're going through every single member 🍓

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🌸 NAME 🌸

struct iwl_statistics_phy_ntfy — PHY statistics notification. that's it, that's the vibe. it's the notification struct that carries all your PHY-level stats and it does NOT hold back 💖

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✨ SYNOPSIS ✨

struct iwl_statistics_phy_ntfy {
    struct iwl_statistics_ntfy_hdr hdr;
    __le32 energy_and_config;
    __le32 rssi_band;
    __le32 agc_word;
    __le32 agc_gain;
    __le32 dfe_gain;
    __le32 snr_calc_main;
    __le32 energy_calc_main;
    __le32 snr_calc_aux;
    __le32 dsp_dc_estim_a;
    __le32 dsp_dc_estim_b;
    __le32 ina_detec_type_and_ofdm_corr_comb;
    __le32 cw_corr_comb;
    __le32 rssi_comb;
    __le32 auto_corr_cck;
    __le32 ofdm_fine_freq_and_pina_freq_err;
    __le32 snrm_evm_main;
    __le32 snrm_evm_aux;
    __le32 rx_rate;
    __le32 per_chain_enums_and_dsp_atten_a;
    __le32 target_power_and_power_meas_a;
    __le32 tx_config_as_i_and_ac_a;
    __le32 predist_dcq_and_dci_a;
    __le32 per_chain_enums_and_dsp_atten_b;
    __le32 target_power_and_power_meas_b;
    __le32 tx_config_as_i_and_ac_b;
    __le32 predist_dcq_and_dci_b;
    __le32 tx_rate;
    __le32 tlc_backoff;
    __le32 mpapd_calib_mode_mpapd_calib_type_a;
    __le32 psat_and_phy_power_limit_a;
    __le32 sar_and_regulatory_power_limit_a;
    __le32 mpapd_calib_mode_mpapd_calib_type_b;
    __le32 psat_and_phy_power_limit_b;
    __le32 sar_and_regulatory_power_limit_b;
    __le32 srd_and_driver_power_limits;
    __le32 reserved;
};

like, look at her. thirty-six fields. main character energy fr fr 👑

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🎀 Members 🎀

• hdr — the general statistics header. also the gateway to the RX PHY related statistics, so she's basically the group chat admin 🫶
• energy_and_config — literally ???. no cap, the original says ??? and we're not out here inventing lore, so. mystery field. iconic of her honestly 💀
• rssi_band — 31:24 rssiAllBand_B, 23:16 rssiInBand_B, 15:8 rssiAllBand_A, 7:0 rssiInBand_A. two bands, all up in there, four slices of byte 🌈
• agc_word — 31:16 agcWord_B, 15:0 agcWord_A. split clean down the middle, very demure 💅
• agc_gain — 19:10 agcGain_B, 9:0 agcGain_A
• dfe_gain — 19:10 dfeGain_B, 9:0 dfeGain_A
• snr_calc_main — 18:0 snrCalcMain
• energy_calc_main — 18:0 energyCalcMain
• snr_calc_aux — 18:0 snrCalcAux
• dsp_dc_estim_a — 27:14 dspDcEstimQA, 13:0 dspDcEstimIA
• dsp_dc_estim_b — 27:14 dspDcEstimQB, 13:0 dspDcEstimIB
• ina_detec_type_and_ofdm_corr_comb — 31:31 inaDetectCckMrc, 30:27 inaDetectType, 26:0 ofdmCorrComb. a single-bit field AND a chunk field in one word, she's doing the most and slaying 🔥
• cw_corr_comb — 26:0 cwCorrComb
• rssi_comb — 25:0 rssiComb
• auto_corr_cck — 23:12 autoCck, 11:00 crossCck
• ofdm_fine_freq_and_pina_freq_err — 18:7 ofdmFineFreq, 6:0 ofdmPinaFreqErr
• snrm_evm_main — 31:0 snrmEvmMain. the whole word, no crumbs left 😭
• snrm_evm_aux — 31:0 snrmEvmAux
• rx_rate — 31:0 rate, and this is where the RX PHY related statistics wrap up and the TX PHY related statistics era begins. transition. character development. 🦋
• per_chain_enums_and_dsp_atten_a — perChainEnumsAndDspAtten (per version). yes bestie, per version, it's giving "it depends" 🙈
• target_power_and_power_meas_a — 31:16 targetPower_A, 15:0 powerMeasuredCalc_A
• tx_config_as_i_and_ac_a — 31:16 txConfigAsI_A, 15:0 txConfigAc_A
• predist_dcq_and_dci_a — 31:16 predist_dci_A, 15:0 predist_dcq_A
• per_chain_enums_and_dsp_atten_b — perChainEnumsAndDspAtten (per version). same energy, different chain 💜
• target_power_and_power_meas_b — 31:16 targetPower_B, 15:0 powerMeasuredCalc_B
• tx_config_as_i_and_ac_b — 31:16 txConfigAsI_B, 15:0 txConfigAc_B
• predist_dcq_and_dci_b — 31:16 predist_dci_B, 15:0 predist_dcq_B
• tx_rate — 31:0 rate
• tlc_backoff — 31:0 tlcBackoff
• mpapd_calib_mode_mpapd_calib_type_a — 31:16 mpapdCalibMode_A, 15:0 mpapdCalibType_A
• psat_and_phy_power_limit_a — 31:16 psat_A, 15:0 phyPowerLimit_A
• sar_and_regulatory_power_limit_a — 31:16 sarPowerLimit_A, 15:0 regulatoryPowerLimit_A
• mpapd_calib_mode_mpapd_calib_type_b — 31:16 mpapdCalibMode_B, 15:0 mpapdCalibType_B
• psat_and_phy_power_limit_b — 31:16 psat_B, 15:0 phyPowerLimit_B
• sar_and_regulatory_power_limit_b — 31:16 sarPowerLimit_B, 15:0 regulatoryPowerLimit_B
• srd_and_driver_power_limits — 31:16 srdPowerLimit, 15:0 driverPowerLimit. the B-suffix saga ends, we're back to a single unified field. closure 🌸
• reserved — reserved. reserved!! don't touch!! she's resting 😴

ngl the field names are long enough to be a whole paragraph, but every one of them is here because we do NOT skip members in this house 🫶

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👑 SEE ALSO 👑

and for your reading list bestie, it's a whole syllabus. the kernel file lives at ./drivers/net/wireless/intel/iwlwifi/fw/api/stats.h — start there, it's giving source of truth ⭐

• struct mvm_statistics_rx_non_phy(9)
• struct mvm_statistics_load(9)
• enum iwl_statistics_notif_flags(9)
• enum iwl_statistics_cmd_flags(9)
• struct iwl_statistics_cmd(9)
• enum iwl_statistics_notify_type_id(9)
• enum iwl_statistics_cfg_flags(9)
• struct iwl_system_statistics_cmd(9)
• enum iwl_fw_statistics_type(9)
• struct iwl_statistics_ntfy_hdr(9)
• struct iwl_stats_ntfy_per_link(9)
• struct iwl_stats_ntfy_part1_per_link(9)
• struct iwl_stats_ntfy_per_mac(9)
• struct iwl_stats_ntfy_per_phy_v1(9)
• struct iwl_stats_ntfy_coex(9)
• struct iwl_stats_ntfy_per_phy(9)
• struct iwl_stats_ntfy_per_sta(9)
• struct iwl_system_statistics_notif_oper_v3(9)
• struct iwl_system_statistics_notif_oper(9)
• struct iwl_system_statistics_part1_notif_oper(9)
• struct iwl_system_statistics_end_notif(9)
• struct iwl_statistics_operational_ntfy(9)
• struct iwl_statistics_operational_ntfy_ver_14(9)
• struct iwl_statistics_mac_ntfy(9)
• struct iwl_statistics_rx_ntfy(9)
• struct iwl_statistics_tx_ntfy(9)
• struct iwl_statistics_duration_ntfy(9)
• struct iwl_statistics_he_ntfy(9)

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that's the whole page, no notes 💅 mwah. this one came from ./drivers/net/wireless/intel/i... and is dated October 2026, filed under the Kernel API Manual as struct iwl_statistics_phy_ntfy(9) — go read the source, it ate 🔥