STRUCT EF4_RX_PAGE_STATE(9)

💅 struct ef4_rx_page_state(9) — the Kernel API Manual, bestie edition 🎀

okay so you're reading the struct ef4_rx_page_state(9) page from the Kernel API Manual and honestly? it's a little guy with a big job. let's get into it ✨

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🌸 NAME 🌸

struct ef4_rx_page_state — the page-based rx buffer state. that's it, that's the vibe 💖

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✨ SYNOPSIS ✨

struct ef4_rx_page_state {
    dma_addr_t dma_addr;
    unsigned int __pad[];
};

look at her. two members. iconic. no notes 🫶

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🦋 Members 🦋

• dma_addr — the dma address of this page. literally the whole personality of the field ngl 💫

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🌈 Description 🌈

so this struct gets inserted at the start of every page allocated for receive buffers. every single one. main character placement fr fr 👑

what's it for? it's used to facilitate sharing dma mappings between recycled rx buffers and those passed up to the kernel. that's the whole assignment — sharing is caring, and the dma mappings are being shared, periodt 💅

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/net/ethernet/sfc/falcon/net_driver.h
• struct ef4_buffer(9)
• struct ef4_special_buffer(9)
• struct ef4_tx_buffer(9)
• struct ef4_tx_queue(9)
• struct ef4_rx_buffer(9)
• struct ef4_rx_queue(9)
• struct ef4_channel(9)
• struct ef4_msi_context(9)
• struct ef4_channel_type(9)
• struct ef4_link_state(9)
• struct ef4_phy_operations(9)
• enum ef4_phy_mode(9)
• struct ef4_hw_stat_desc(9)
• struct ef4_nic(9)
• struct ef4_nic_type(9)

like, the whole friend group showed up. iykyk 🧚

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ngl there's nothing dangerous on this page, it's just a lil header struct doing its thing. still, read the whole squad above if you want the full lore 📖💜

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and that's the page!! this one's brought to you by ./drivers/net/ethernet/sfc/falcon and dated October 2026 — go off, falcon directory, we love you 💖🎀🌸🦋⭐