STRUCT LIBIE_CP_DMA_MEM(9)

✨ struct libie_cp_dma_mem(9) ✨

okay bestie, welcome to the Kernel API Manual — yes that's the manual name, don't @ me — and today's main character is struct libie_cp_dma_mem, fr fr. 💅

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🌸 NAME 🌸

struct libie_cp_dma_mem — the structure for DMA memory. that's it. that's the whole vibe. it's giving "small struct, big responsibilities" 🫶

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🦋 SYNOPSIS 🦋

like, here's literally the whole thing, character for character, no cap:

struct libie_cp_dma_mem {
    void *va;
    dma_addr_t pa;
    size_t size;
    int direction;
 };

she's compact. she's iconic. she has four members and zero drama. periodt. ✨

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🎀 Members 🎀

okay so let's meet the squad, one by one 💖

• va — the virtual address. the vibes address, if you will 🧚
• pa — the physical address. yes they're different, no it's not a typo, iykyk 🔥
• size — the memory size, aka how much we're working with, bestie 📏
• direction — is it memory to device, or device to memory? that's the whole question, and this field is the answer 👑 (literally the plot of every DMA story ever)

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🌈 SEE ALSO 🌈

the full friend group, no one left out, we don't do that here 💜

• Kernel file ./include/linux/net/intel/libie/controlq.h enum
• libie_ctlq_type(9)
• struct libie_ctlq_ctx(9)
• struct libie_ctlq_reg(9)
• struct libie_ctlq_msg(9)
• struct libie_ctlq_create_info(9)
• struct libie_ctlq_info(9)
• struct libie_ctlq_desc(9)
• struct libie_ctlq_clean_params(9)
• libie_ctlq_release_rx_buf(9)
• enum libie_ctlq_xn_state(9)
• struct libie_ctlq_xn(9)
• struct libie_ctlq_xn_manager(9)
• struct libie_ctlq_xn_send_params(9)
• libie_cp_can_send_onstack(9)
• struct libie_ctlq_xn_recv_params(9)
• struct libie_ctlq_xn_init_params(9)

like go read them?? they're all right there?? this struct does NOT exist in a vacuum, bestie 😭

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and that's the whole page, mwah 💋 — brought to you by ./include/linux/net/intel/libie, dated October 2026, still sitting pretty at struct libie_cp_dma_mem(9) in the footer like the little icon she is 🍓✨