STRUCT ADF_RL(9)

💅 struct adf_rl(9) — Kernel API Manual, but make it cute ✨

ok so bestie, welcome to the struct adf_rl page — this is a Kernel API Manual entry and honestly it's giving "backstage pass to the rate limiting closet" 🎀

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🌸 NAME 🌸

struct adf_rl — the ratelimiting data structure. yeah. that's the whole vibe. it's the data structure, it does ratelimiting, we move 💅

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✨ SYNOPSIS ✨

ok here's the actual shape of it, and pls don't touch a single character because this is exactly how it's declared:

struct adf_rl {
    struct adf_accel_dev *accel_dev;
    struct adf_rl_hw_data *device_data;
    struct rl_sla *sla[RL_NODES_CNT_MAX];
    struct rl_sla *root[RL_ROOT_MAX];
    struct rl_sla *cluster[RL_CLUSTER_MAX];
    struct rl_sla *leaf[RL_LEAF_MAX];
    bool rp_in_use[RL_RP_CNT_MAX];
    struct mutex rl_lock;
    struct adf_rl_interface_data user_input;
 };

like, look at her. all those arrays. main character energy fr 🫶

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🦋 Members 🦋

okay bestie, member by member, no cap, nothing left out:

• accel_dev — pointer to acceleration device data. literally the pointer to the accel device's data, that's it 💖
• device_data — pointer to rate limiting data specific to a device type (or revision). so like, per-device-type / per-revision RL data lives here 🌈
• sla — array of pointers to SLA objects. all of them. the whole squad 👑
• root — array of pointers to root type SLAs, and the element number reflects node_id ⭐
• cluster — array of pointers to cluster type SLAs, element number reflects node_id 🧚
• leaf — array of pointers to leaf type SLAs, element number reflects node_id 🍓
• rp_in_use — array of ring pair IDs already used in one of the SLAs 🙈 (so like, taken. spoken for. do not touch.)
• rl_lock — mutex object which is protecting data in this structure 🔒 the bodyguard, the bouncer, the "not you" at the door 💀

tiny heads up: user_input also shows up in the struct up there, but this page doesn't describe it — so we're not gonna make anything up about it. we simply don't know her like that 🎀

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💜 SEE ALSO 💜

• Kernel file ./drivers/crypto/intel/qat/qat_common/adf_rl.h
• struct adf_rl_sla_input_data(9)
• struct rl_sla(9)

go read those next, iykyk 🔥

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and that's the page, bestie! 🦋 this one came out of ./drivers/crypto/intel/qat/qat... and it's dated October 2026 — so like, mark your calendar, stan the struct, and remember: the lock protects the data, periodt 💅✨