STRUCT PSP_DEV(9)

✨ NAME ✨

struct psp_dev — the PSP device struct, aka the main character of this whole file 💅

Ok so before we go any further: this page lives in the Kernel API Manual (section 9, kernel API), and it's literally just one struct's whole personality laid out for you. No cap, it's a good one 🫶

🌸 SYNOPSIS 🌸

Here's the whole thing, bestie — every field, exactly as it is:

struct psp_dev {
    struct net_device *main_netdev;
    struct list_head assoc_dev_list;
    int assoc_dev_cnt;
    struct psp_dev_ops *ops;
    struct psp_dev_caps *caps;
    void *drv_priv;
    struct mutex lock;
    refcount_t refcnt;
    u32 id;
    u8 generation;
    struct psp_dev_config config;
    struct list_head active_assocs;
    struct list_head prev_assocs;
    struct list_head stale_assocs;
    struct {
      unsigned long rotations;
      unsigned long stales;
    } stats;
    struct rcu_head rcu;
 };

Like… she's structured. She's organized. She has range 🔥

🎀 MEMBERS 🎀

Time for the roll call, one field at a time 👑

• main_netdev — the original netdevice of this PSP device. The O.G. netdev, basically 🌈
• assoc_dev_list — the list of psp_assoc_dev entries that are associated with this PSP device. It's giving friend group energy 👯
• assoc_dev_cnt — how many entries are actually chillin' in assoc_dev_list. Just a count, but an important one 💖
• ops — the driver callbacks. The driver's whole to-do list 🎯
• caps — the device capabilities. What she can do, periodt ✨
• drv_priv — a driver priv pointer. The driver's own lil private corner 🙈
• lock — the instance lock, and it protects all fields. All of them. No exceptions. Respect the lock, fr fr 🔒
• refcnt — the reference count for the instance. Classic "how many people are holding onto me" situation 💀
• id — the instance id 🏷️
• generation — the current generation of the device key. She evolves 🦋
• config — the current device configuration. Her settings era 🎀
• active_assocs — the list of registered associations 💫
• prev_assocs — associations that use the old device key — but PSA: old here means still usable, so don't come for them 😌
• stale_assocs — associations whose key got rotated out. Rotated out = done-zo, no keys left 💀
• stats — statistics maintained by the core 📊
• stats.rotations — see the stats attr key-rotations 👀
• stats.stales — see the stats attr stale-events 👀
• rcu — the RCU head used for freeing the structure. The cleanup arc 🧹

🦋 SEE ALSO 🦋

Go read these next, bestie — they're all in the kernel file ./include/net/psp/types.h:

• struct psp_dev_config(9)
• struct psp_assoc_dev(9)
• struct psp_dev_caps(9)
• struct psp_dev_ops(9)

And that's the whole page, mwah 💋 — brought to you by ./include/net/psp, dated October 2026, from the Kernel API Manual. Slay, go read your structs 🫶✨