STRUCT LIBETH_XDP_TX_DESC(9)

📦 version 7.3.1, in nixpkgs unstable

🎀 NAME 🎀

Bestie, welcome to the struct libeth_xdp_tx_desc(9) page from the Kernel API Manual 💖 This is literally the abstraction for an XDP Tx descriptor. No cap.

✨ SYNOPSIS ✨

       struct libeth_xdp_tx_desc {
           dma_addr_t addr;
           union {
             struct {
               u32 len;
               u32 flags;
             };
             aligned_u64 opts;
           };
        };

🫶 Members 🫶

  • addr — DMA address of the frame 💅
  • {unnamed_union} — anonymous 🫶
    • {unnamed_struct} — anonymous
      • len — length of the frame
      • flags — XDP Tx flags
    • opts — combined len + flags for speed ⚡

🌸 Description 🌸

Okay so the generic functions fill this bad boy in, then it gets passed to driver-specific functions so they can fill a HW Tx descriptor. It's always placed on the [function] stack. Periodt ✨

🦋 SEE ALSO 🦋

Kernel file ./include/net/libeth/xdp.h, plus all these besties:

xoxo, this page lives in ./include/net/libeth, October 2026 edition 💖✨

📦 where this page comes from