STRUCT MLXBF_TMFIFO(9)

💖 struct mlxbf_tmfifo(9) — Kernel API Manual 🎀

okay so bestie, welcome to the glow-up of the kernel API manual page for struct mlxbf_tmfifo ✨ this is the TmFifo struct and she is lowkey the main character of her own header file. grab a strawberry drink 🍓 and let's get into it.

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🌸 NAME 🌸

struct mlxbf_tmfifo — Structure of the TmFifo 💅

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✨ SYNOPSIS ✨

here's the whole fit, bestie, copied exactly so you don't have to squint at the source:

struct mlxbf_tmfifo {
    struct mlxbf_tmfifo_vdev *vdev[MLXBF_TMFIFO_VDEV_MAX];
    struct mutex lock;
    void __iomem *res0;
    void __iomem *res1;
    struct mlxbf_tmfifo_io rx;
    struct mlxbf_tmfifo_io tx;
    int rx_fifo_size;
    int tx_fifo_size;
    unsigned long pend_events;
    struct mlxbf_tmfifo_irq_info irq_info[MLXBF_TM_MAX_IRQ];
    struct work_struct work;
    struct timer_list timer;
    struct mlxbf_tmfifo_vring *vring[2];
    spinlock_t spin_lock[2];
    bool is_ready;
 };

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🦋 Members 🦋

okay this is the part where we meet the whole squad, one member at a time 🫶

• vdev — array of the virtual devices running over the TmFifo. the whole friend group, fr fr 👑
• lock — lock to protect the TmFifo access. nobody touches the TmFifo without taking the lock first, no cap 🔒
• res0 — mapped resource block 0. iconic. we stan 🌈
• res1 — mapped resource block 1. the sequel, and honestly she ate 💅
• rx — rx io resource 💜
• tx — tx io resource 💜
• rx_fifo_size — number of entries of the Rx FIFO. literally just the count, bestie 🍓
• tx_fifo_size — number of entries of the Tx FIFO. same energy, other direction 😭
• pend_events — pending bits for deferred events. the "brb, doing it later" bits ⭐
• irq_info — interrupt information 🔥
• work — work struct for deferred process 🧚
• timer — background timer. she's ticking away in the background, minding her business ⏰
• vring — Tx/Rx ring 💫
• spin_lock — Tx/Rx spin lock. two of them, spinny, doing the most 💀
• is_ready — ready flag. the vibe check boolean, and if she's true then we're so on 🎀

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👀 SEE ALSO 👀

go read these next, bestie, iykyk:

• Kernel file ./drivers/platform/mellanox/mlxbf-tmfifo.c struct mlxbf_tmfifo_vring(9), struct mlxbf_tmfifo_vdev(9), struct mlxbf_tmfifo_irq_info(9), struct mlxbf_tmfifo_io(9), struct mlxbf_tmfifo_msg_hdr(9)

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ngl this page lives in ./drivers/platform/mellanox, and it's dated October 2026 — so yeah, coming to a kernel near you, periodt 💅✨

and that's the whole page, bestie — TmFifo documented, structure slayed, nobody left confused. mwah 🫶💖

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