STRUCT OCELOT_FDMA_RX_RING(9)

🌸 struct ocelot_fdma_rx_ring(9) 🌸

okay bestie, welcome to the Kernel API Manual ✨ — this is the page for struct ocelot_fdma_rx_ring, and we're gonna get you comfy with it, no cap 💖

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💅 NAME 💅

struct ocelot_fdma_rx_ring — TX ring description of DCBs 🎀

yes, it's an RX ring and the one-liner says TX. not me pointing it out, the docs said it first 🙈 iykyk.

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🦋 SYNOPSIS 🦋

struct ocelot_fdma_rx_ring {
    struct ocelot_fdma_dcb *dcbs;
    dma_addr_t dcbs_dma;
    struct ocelot_fdma_rx_buf bufs[OCELOT_FDMA_RX_RING_SIZE];
    struct sk_buff *skb;
    u16 next_to_clean;
    u16 next_to_use;
    u16 next_to_alloc;
 };

like, that's the whole vibe of the struct, literally all of it 🫶

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✨ Members ✨

• dcbs — the DCBs that got allocated for this ring, that's them, that's the pile 💜
• dcbs_dma — the DMA base address of the DCBs, so the hardware knows where the party's at 🎀
• bufs — the list of RX buffers that are associated to the DCBs 🌸
• skb — the SKB that the netdev is currently receiving 👑
• next_to_clean — the next DCB to be cleaned up during NAPI polling 🧹✨
• next_to_use — the next available DCB to send an SKB out of 🚀
• next_to_alloc — the next buffer that needs to be allocated (could be page reuse or an alloc, both are valid, we don't judge) 💫

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/net/ethernet/mscc/ocelot_fdma.h
• struct ocelot_fdma_tx_buf(9)
• struct ocelot_fdma_tx_ring(9)
• struct ocelot_fdma_rx_buf(9)
• struct ocelot_fdma(9)

go read those too, they're the friend group 🫶💖

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and that's the page, bestie!! 🎀 sign-off time: this lil masterpiece lives at ./drivers/net/ethernet/mscc, dated October 2026, and it's filed under struct ocelot_fdma_rx_ring(9) — iconic of it, honestly 💅⭐🌈