STRUCT QUEUE_ENTRY_PRIV_MMIO(9)

👑 struct queue_entry_priv_mmio — Kernel API Manual ✨

okay so bestie, welcome to the Kernel API Manual entry for struct queue_entry_priv_mmio, and no cap this one is a lil cutie: it's the per-entry, PCI-specific info holder 🎀

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✨ NAME ✨

struct queue_entry_priv_mmio — Per entry PCI specific information 💅

Like, that's literally the whole job description. Each queue entry gets its own lil private stash of PCI-flavoured facts, and this struct is the stash. Obsessed.

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🦋 SYNOPSIS 🦋

struct queue_entry_priv_mmio {
    __le32 *desc;
    dma_addr_t desc_dma;
 };

that's it, that's the whole struct 💖 two members, zero drama, immaculate minimalism.

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🌸 Members 🌸

🎀 desc

Pointer to device descriptor 🫶

so it's a __le32 * pointing at the descriptor the device cares about — little-endian 32-bit things, iykyk.

🎀 desc_dma

DMA pointer to desc. ⭐

same descriptor, but the DMA address flavour — the one the hardware actually gets handed. the way that these two are basically the same thing living two different lives 😭 iconic.

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/net/wireless/ralink/rt2x00/rt2x00mmio.h 🧚
• rt2x00mmio_regbusy_read(9)
• rt2x00mmio_rxdone(9)
• rt2x00mmio_flush_queue(9)

go read those too, they're the rest of the rt2x00mmio squad and they all ate 💜

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vibe check: tiny struct, big main-character energy — if you're poking at rt2x00 PCI descriptor plumbing, this is your girl 🌈

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and that's a wrap, bestie 💅 the source/version is that ./drivers/net/wireless/ralink/... path and the date on the tin is October 2026, so go forth and slay 🍓👑