STRUCT OWL_DMA_LLI(9)

✨ struct owl_dma_lli(9) ✨

okay so bestie, welcome to the Kernel API Manual 💅 and today's main character is struct owl_dma_lli — the link list for dma transfer. yes, that's the whole vibe. it's giving "glue that holds your scatter-gather together." 🦋

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💖 NAME 💖

struct owl_dma_lli — Link list for dma transfer 🎀

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🌸 SYNOPSIS 🌸

here's the whole glow-up, copied exactly because we do not paraphrase code in this house:

struct owl_dma_lli {
    u32 hw[OWL_DMADESC_SIZE];
    dma_addr_t phys;
    struct list_head        node;
 };

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🧚 Members 🧚

• hw — the hardware link list itself. yes, the actual hardware-flavoured bits, chillin' in an array of u32 sized OWL_DMADESC_SIZE. 🔥
• phys — the physical address of that hardware link list. that's a dma_addr_t, so you know it's the real deal. 📍
• node — the struct list_head node that hooks this bad boy into the txd's lli_list. it's literally the friendship bracelet connecting it to its people. 🫶

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👑 SEE ALSO 👑

go read these next, iykyk:

• the kernel file ./drivers/dma/owl-dma.c 🍓
• enum owl_dmadesc_offsets(9)
• struct owl_dma_txd(9)
• struct owl_dma_pchan(9)
• struct owl_dma_vchan(9)
• struct owl_dma(9)

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ngl bestie, this struct doesn't do much on its own — it's the little descriptor bundle the owl-dma driver passes around, so keep the field meanings straight and you're golden. 💜

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that's the whole page, no cap 🌈 — brought to you by ./drivers/dma, dated October 2026, and obviously titled struct owl_dma_lli(9). mwah, go slay your dma transfers 💅✨🎀