STRUCT IWL_SHARED_MEM_CFG(9)

✨ struct iwl_shared_mem_cfg(9) ✨

okay bestie, welcome to the Kernel API Manual 💅 this is the page for struct iwl_shared_mem_cfg, and it is literally the shared memory configuration information glow-up of your dreams. no cap. let's get into it 🎀

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🌸 NAME 🌸

struct iwl_shared_mem_cfg — shared memory configuration information ✨

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🦋 SYNOPSIS 🦋

here's the whole vibe, character for character, don't touch anything:

struct iwl_shared_mem_cfg {
    __le32 shared_mem_addr;
    __le32 shared_mem_size;
    __le32 sample_buff_addr;
    __le32 sample_buff_size;
    __le32 rxfifo2_addr;
    __le32 rxfifo2_size;
    __le32 page_buff_addr;
    __le32 page_buff_size;
    __le32 lmac_num;
    struct iwl_shared_mem_lmac_cfg lmac_smem[3];
    __le32 rxfifo2_control_addr;
    __le32 rxfifo2_control_size;
 };

she's structured. she's little-endian. she's iconic. 👑

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💖 Members 💖

every single field, served fresh, no skips, no crumbs:

• shared_mem_addr — the shared memory address 🏠
• shared_mem_size — the shared memory size, aka how much room she's got 📏
• sample_buff_addr — address of the internal sample (mon/adc) buff 🔍
• sample_buff_size — size of that internal sample buff 🍓
• rxfifo2_addr — the start addr of RXF2 📍
• rxfifo2_size — the size of RXF2 📦
• page_buff_addr — used by UMAC and performance debug (page miss analysis), and when paging is not supported this should be 0 ⚠️ (yes, literally zero, don't be weird about it)
• page_buff_size — size of page_buff_addr 🧚
• lmac_num — number of LMACs (either 1 or 2, that's the whole menu) 🎯
• lmac_smem — per-LMAC smem data 💫
• rxfifo2_control_addr — the start addr of RXF2C 🗺️
• rxfifo2_control_size — the size of RXF2C 📐

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🌈 SEE ALSO 🌈

the whole friend group, all linked, all slaying in their own way:

• Kernel file ./drivers/net/wireless/intel/iwlwifi/fw/api/debug.h
• enum iwl_debug_cmds(9)
• struct iwl_error_resp(9)
• struct iwl_shared_mem_cfg_v2(9)
• struct iwl_shared_mem_lmac_cfg(9)
• struct iwl_mfuart_load_notif_v1(9)
• struct iwl_mfuart_load_notif(9)
• struct iwl_mfu_assert_dump_notif(9)
• enum iwl_marker_id(9)
• struct iwl_marker(9)
• struct iwl_marker_rsp(9)
• struct iwl_dbg_mem_access_cmd(9)
• struct iwl_dbg_mem_access_rsp(9)
• struct iwl_dbg_suspend_resume_cmd(9)
• struct iwl_buf_alloc_frag(9)
• struct iwl_buf_alloc_cmd(9)
• struct iwl_dram_info(9)
• struct iwl_dbgc1_info(9)
• struct iwl_dbg_host_event_cfg_cmd(9)
• struct iwl_dbg_dump_complete_cmd(9)
• struct iwl_tas_status_per_mac(9)
• struct iwl_tas_status_resp(9)
• enum iwl_tas_dyna_status(9)
• enum iwl_tas_statically_disabled_reason(9)
• enum iwl_fw_dbg_config_cmd_type(9)
• struct iwl_fw_dbg_config_cmd(9)

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and that's the page, bestie 🫶 sourced straight from ./drivers/net/wireless/intel/i..., dated October 2026, filed under struct iwl_shared_mem_cfg(9). go forth and configure your shared memory with main character energy 💜🔥