libeth_xdp_process_buff(9)

📦 version 7.3.1, in nixpkgs unstable

libeth_xdp_process_buff(9) 💖

okay so this is the Kernel API Manual entry for libeth_xdp_process_buff(9), and it's literally all about attaching an Rx buffer to a &libeth_xdp_buff, bestie. no cap.

✨ NAME ✨

libeth_xdp_process_buff — attach Rx buffer to &libeth_xdp_buff 🫶

🎀 SYNOPSIS 🎀

bool libeth_xdp_process_buff (struct libeth_xdp_buff *xdp , const struct
       libeth_fqe *fqe , u32 len );

🌸 ARGUMENTS 🌸

  • xdp — the XDP buffer you're attaching the Rx buffer to, periodt.
  • fqe — the Rx buffer to process. iconic little thing.
  • len — received data length from the descriptor, fr fr.

🦋 DESCRIPTION 🦋

so here's the vibe: if the XDP buffer is empty, this attaches the Rx buffer as head and initializes the required fields. otherwise, it attaches the buffer as a frag. 💅

it already performs DMA sync-for-CPU and frame start prefetch — and that prefetch is for head buffers only, iykyk. ✨

💜 RETURN 💜

returns true on success, and false if the descriptor must be skipped — that's when it's empty or there's no space for a new frag. 😭

skip means skip, bestie. don't make it a whole thing. 💀

💅 SEE ALSO 💅

the whole friend group is here, no cap:

mwah 💋 this page comes from the source path ./include/net/libeth, dated October 2026, and it's the libeth_xdp_process_buff(9) manual page. slay. 🌈

📦 where this page comes from