STRUCT FQ(9)

💖 NAME 💖

okay bestie, welcome to struct fq(9) from the Kernel API Manual ✨ struct fq is literally the main container for fair queuing purposes 💅 no cap.

📦 SYNOPSIS 📦

       struct fq {
           struct fq_flow *flows;
           unsigned long *flows_bitmap;
           struct list_head tin_backlog;
           spinlock_t lock;
           u32 flows_cnt;
           u32 limit;
           u32 memory_limit;
           u32 memory_usage;
           u32 quantum;
           u32 backlog;
           u32 overlimit;
           u32 overmemory;
           u32 collisions;
        };

🫶 Members 🫶

The page spills the tea on these members, and you already know we're keeping every detail 🎀

• limit — max number of packets that can be queued across all flows 👑
• backlog — number of packets queued across all flows 🦋

👀 SEE ALSO 👀

• Kernel file ./include/net/fq.h — and the refs are struct fq_flow(9), struct fq_tin(9) 💜

source/version/date check, bestie: this one lives at ./include/net, dated October 2026, and it's all about struct fq(9) — mwah 💋✨