STRUCT IWL_SF_CFG_CMD(9)

✨ struct iwl_sf_cfg_cmd — the smart fifo glow-up ✨

okay so bestie, this is a page from the Kernel API Manual, and it's literally all about struct iwl_sf_cfg_cmd — the Smart Fifo configuration command. it's giving "niche kernel struct that eats" and i'm obsessed 🎀

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💖 NAME 💖

struct iwl_sf_cfg_cmd — the Smart Fifo configuration command. that's it, that's the vibe. 💅

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🌸 SYNOPSIS 🌸

here's the struct in all its main-character glory, copy-pasted exactly because we do not mess with code:

struct iwl_sf_cfg_cmd {
    __le32 state;
    __le32 watermark[SF_TRANSIENT_STATES_NUMBER];
    __le32 long_delay_timeouts[SF_NUM_SCENARIO][SF_NUM_TIMEOUT_TYPES];
    __le32 full_on_timeouts[SF_NUM_SCENARIO][SF_NUM_TIMEOUT_TYPES];
 };

like, look at those multidimensional arrays. she's structured. she's organized. she's lowkey a vibe. 🦋

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👑 Members 👑

• state — the smart fifo state itself, bestie. the types are all listed in enum iwl_sf_state if you wanna go look. it's literally the mood of the fifo. ✨
• watermark — the minimum allowed available free space in RXF for a transient state. think of it as the "don't let the queue get too thirsty" line. 💧
• long_delay_timeouts — aging and idle timer values for each scenario when you're in the long delay state. it's the "chill mode" timers, fr fr. ⏳
• full_on_timeouts — timer values for each scenario when you're in the full on state. that's the "go go go" mode timers, no cap. 🔥

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🫶 SEE ALSO 🫶

if you wanna dig deeper (and honestly, why wouldn't you), check out the kernel file:

./drivers/net/wireless/intel/iwlwifi/fw/api/sf.h

that's where all the lore lives. iykyk. 💜

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and that's the whole page, bestie! this was pulled from the Kernel API Manual, dated October 2026, and the source line was literally ./drivers/net/wireless/intel/i... — iconic truncated energy. stay slay, stay structured, and may your fifo always be smart. 💅✨🌈