STRUCT ZYNQMP_DMA_DESC_LL(9)

📦 version 7.3.1, in nixpkgs unstable

💖 NAME 💖

okay bestie, welcome to the struct zynqmp_dma_desc_ll(9) page in the Kernel API Manual 🫶

struct zynqmp_dma_desc_ll — Hw linked list descriptor. that's the name and the one-line description, and yes it's giving hardware-linked-list realness 💅

✨ SYNOPSIS ✨

here's the whole struct, copied exactly so you don't have to squint at the kernel source:

struct zynqmp_dma_desc_ll {
    u64 addr;
    u32 size;
    u32 ctrl;
    u64 nxtdscraddr;
    u64 rsvd;
 };

No cap, that's the shape of it. Fields are below, bestie 👇

🎀 Members 🎀

  • addr — Buffer address. it's literally where the buffer lives 📍
  • size — Size of the buffer. the amount of buffer we're talking about, periodt 📏
  • ctrl — Control word. the control word itself, main character energy 👑
  • nxtdscraddr — Next descriptor base address. the base address of the next descriptor, linked-list slay 🔗
  • rsvd — Reserved field and for Hw internal use. hands off, bestie — Hw's got this one 🙈

🦋 SEE ALSO 🦋

Kernel file ./drivers/dma/xilinx/zynqmp_dma.c is the home base, and here's the whole friend group — every single reference, no skips:

mwah 💋 — source/version: ./drivers/dma/xilinx, dated October 2026, page: struct zynqmp_dma_desc_ll(9). bye bestie 🫶

📦 where this page comes from