STRUCT IWL_TRANS_DEBUG(9)

💅 struct iwl_trans_debug — transport debug related data (yes bestie, it's the kernel API manual, aka struct iwl_trans_debug(9) if we're being formal ✨)

okay so picture this: it's the kernel API manual for struct iwl_trans_debug(9), and it's literally the glow-up era of transport debug data. every field is a little main character, and you're about to meet all of them 🎀

✨ SYNOPSIS ✨

struct iwl_trans_debug {
    u8 n_dest_reg;
    bool rec_on;
    const struct iwl_fw_dbg_dest_tlv_v1 *dest_tlv;
    u32 lmac_error_event_table[2];
    u32 umac_error_event_table;
    u32 tcm_error_event_table[2];
    u32 rcm_error_event_table[2];
    unsigned int error_event_table_tlv_status;
    enum iwl_ini_cfg_state internal_ini_cfg;
    enum iwl_ini_cfg_state external_ini_cfg;
    struct iwl_fw_ini_allocation_tlv
fw_mon_cfg[IWL_FW_INI_ALLOCATION_NUM];
    struct iwl_fw_mon fw_mon_ini[IWL_FW_INI_ALLOCATION_NUM];
    struct iwl_dram_data fw_mon;
    bool hw_error;
    enum iwl_fw_ini_buffer_location ini_dest;
    u64 unsupported_region_msk;
    struct iwl_ucode_tlv *active_regions[IWL_FW_INI_MAX_REGION_ID];
    struct list_head debug_info_tlv_list;
    struct iwl_dbg_tlv_time_point_data
time_point[IWL_FW_INI_TIME_POINT_NUM];
    struct list_head periodic_trig_list;
    u32 domains_bitmap;
    u32 ucode_preset;
    bool restart_required;
    u32 last_tp_resetfw;
    struct iwl_imr_data imr_data;
    u32 num_pc;
    struct iwl_pc_data *pc_data;
    bool yoyo_bin_loaded;
 };

No cap, that's the whole vibe of the struct — every single member, exactly as it lives. 🫶

🌸 Members 🌸

time for the roll call, bestie. every field, every little description, nothing skipped:

• n_dest_reg — literally the num of reg_ops in dbg_dest_tlv 💅
• rec_on — true iff there's a fw debug recording currently active. lowkey the "are we recording rn" flag 🎀
• dest_tlv — points to the destination TLV for debug ✨
• lmac_error_event_table — addrs of lmacs error tables (plural, she has range) 🦋
• umac_error_event_table — addr of umac error table 🌸
• tcm_error_event_table — address(es) of TCM error table(s) 🫶
• rcm_error_event_table — address(es) of RCM error table(s) 💖
• error_event_table_tlv_status — bitmap that indicates what error table pointers was recevied via TLV. uses enum iwl_error_event_table_status (yes, "recevied" — we keep the source's spelling, fr fr, that's canon) 💀
• internal_ini_cfg — internal debug cfg state. Uses enum iwl_ini_cfg_state ✨
• external_ini_cfg — external debug cfg state. Uses enum iwl_ini_cfg_state 🌈
• fw_mon_cfg — debug buffer allocation configuration 👑
• fw_mon_ini — DRAM buffer fragments per allocation id 🧚
• fw_mon — DRAM buffer for firmware monitor 🍓
• hw_error — equals true if hw error interrupt was received from the FW 😭
• ini_dest — debug monitor destination, uses enum iwl_fw_ini_buffer_location 💜
• unsupported_region_msk — unsupported regions out of active_regions 🙈
• active_regions — active regions ⭐
• debug_info_tlv_list — list of debug info TLVs 🔥
• time_point — array of debug time points 🦋
• periodic_trig_list — periodic triggers list 🎀
• domains_bitmap — bitmap of active domains other than IWL_FW_INI_DOMAIN_ALWAYS_ON 💅
• ucode_preset — preset based on ucode ✨
• restart_required — indicates debug restart is required 🌸
• last_tp_resetfw — last handling of reset during debug timepoint 💖
• imr_data — IMR debug data allocation 🫶
• num_pc — number of program counter for cpu 🌈
• pc_data — details of the program counter 👑
• yoyo_bin_loaded — tells if a yoyo debug file has been loaded 🧚

🦋 SEE ALSO 🦋

bestie the cross-references are stacked, we're talking full friend group:

• Kernel file ./drivers/net/wireless/intel/iwlwifi/iwl-trans.h — Transport layer - what is it ?(9)
• Life cycle of the transport layer(9)
• enum CMD_MODE(9)
• struct iwl_device_cmd(9)
• struct iwl_device_tx_cmd(9)
• enum iwl_hcmd_dataflag(9)
• struct iwl_host_cmd(9)
• enum iwl_trans_status(9)
• struct iwl_dump_sanitize_ops(9)
• struct iwl_trans_config(9)
• struct iwl_trans_rxq_dma_data(9)
• struct iwl_pnvm_image(9)
• enum iwl_trans_state(9)
• Platform power management(9)
• enum iwl_ini_cfg_state(9)
• struct iwl_dram_data(9)
• struct iwl_dram_regions(9)
• struct iwl_fw_mon(9)
• struct iwl_self_init_dram(9)
• struct iwl_imr_data(9)
• struct iwl_pc_data(9)
• struct iwl_trans_info(9)
• struct iwl_trans(9)
• iwl_trans_resched_with_nic_access(9)

like, go read them, iykyk 💜

okay that's the whole page, periodt. this lil masterpiece lives at ./drivers/net/wireless/intel/i... (the path said "i..." and honestly same, bestie, we love an abbreviated queen) dated October 2026, and it's filed under struct iwl_trans_debug(9). mwah 💋✨