i40e_construct_skb_zc(9)

💖 i40e_construct_skb_zc(9) — like, the zero-copy Rx glow-up 💖

okay so bestie, welcome to the Kernel API Manual ✨ this one's a function page and it's literally about building an sk_buff out of a zero-copy Rx buffer. networking girls stay winning 🎀

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✨ NAME ✨

i40e_construct_skb_zc — create an skbuff from a zero-copy Rx buffer 🦋

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🌸 SYNOPSIS 🌸

struct sk_buff * i40e_construct_skb_zc (struct i40e_ring *rx_ring ,
   struct xdp_buff *xdp );

like, give it a ring and an xdp_buff and it hands you back an sk_buff *, periodt 💅

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🎀 ARGUMENTS 🎀

• rx_ring — the Rx ring 🌀 (yes, the actual ring, the main character of the receive path)
• xdp — the xdp_buff 🧚 (the XDP-side buffer bestie)

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💜 DESCRIPTION 💜

so what it does: this function allocates a new skb from a zero-copy Rx buffer. that's the whole vibe — zero-copy buffer in, shiny new skb out, no extra copying, we love efficiency 🔥

it returns the skb, or NULL on failure 😭 (so like, always check, ngl — a NULL return means it did not slay).

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🌈 SEE ALSO 🌈

okay the friend group 🫶 — go read these too:

• Kernel file ./drivers/net/ethernet/intel/i40e/i40e_xsk.c 📁
• i40e_realloc_rx_xdp_bi(9)
• i40e_realloc_rx_bi_zc(9)
• i40e_xsk_pool_enable(9)
• i40e_xsk_pool_disable(9)
• i40e_xsk_pool_setup(9)
• i40e_run_xdp_zc(9)
• i40e_clean_rx_irq_zc(9)
• i40e_xmit_zc(9)
• i40e_clean_xdp_tx_buffer(9)
• i40e_clean_xdp_tx_irq(9)
• i40e_xsk_wakeup(9)
• i40e_xsk_clean_tx_ring(9)
• i40e_xsk_any_rx_ring_enabled(9)

like, that's the whole i40e xsk cinematic universe, iykyk 👑

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🫶 cute lil sign-off: this page came from ./drivers/net/ethernet/intel/i40e, dated October 2026. that's the source/version and the date, bestie — no cap, that's literally all of it. bye, go read the source 💖⭐