iavf_tx_enable_csum(9)

💖 iavf_tx_enable_csum — the Kernel API Manual glow-up you didn't know you needed ✨

okay so bestie, welcome to the Kernel API Manual page for iavf_tx_enable_csum, and no cap, this little function is doing a LOT of behind-the-scenes work. Let's get into it 🫶

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🌸 NAME 🌸

iavf_tx_enable_csum — literally just enable Tx checksum offloads. That's the whole vibe check. It turns on checksum offloading for transmit, and honestly? Iconic.

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✨ SYNOPSIS ✨

int iavf_tx_enable_csum (struct sk_buff *skb , u32 *tx_flags , u32
       *td_cmd , u32 *td_offset , struct iavf_ring *tx_ring , u32 *cd_tunneling
       );

six arguments, one function, zero chill. keep those pointers exactly as they are, bestie — we do not touch the signature 💅

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🎀 ARGUMENTS 🎀

okay so here's the cast of characters, and yes every single one is main character energy:

• skb — the send buffer. it's giving "the actual packet we're shipping out" 💌
• tx_flags — pointer to the Tx flags that are currently set. think of it as the receipt of what's already been decided 🔥
• td_cmd — Tx descriptor command bits to set. yes, you're setting bits. slay ⭐
• td_offset — Tx descriptor header offsets to set. more setting, more slaying, we love to see it 🦋
• tx_ring — the Tx descriptor ring itself. the whole venue for this operation 👑
• cd_tunneling — ptr to context desc bits. short label, big responsibility 🙈

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💜 SEE ALSO 💜

the friend group is HUGE and we are not leaving anyone out, periodt. first up, the kernel file this whole thing lives in:

• Kernel file ./drivers/net/ethernet/intel/iavf/iavf_txrx.c

and now the entire squad, in the exact order they were invited:

• iavf_is_descriptor_done(9), iavf_unmap_and_free_tx_resource(9),
• iavf_clean_tx_ring(9), iavf_free_tx_resources(9),
• iavf_get_tx_pending(9), iavf_force_wb(9), iavf_detect_recover_hung(9),
• iavf_clean_tx_irq(9), iavf_enable_wb_on_itr(9), iavf_update_itr(9),
• iavf_setup_tx_descriptors(9), iavf_clean_rx_ring(9),
• iavf_free_rx_resources(9), iavf_setup_rx_descriptors(9),
• iavf_release_rx_desc(9), iavf_receive_skb(9), iavf_alloc_rx_buffers(9),
• iavf_rx_csum(9), iavf_legacy_rx_csum(9), iavf_flex_rx_csum(9),
• iavf_legacy_rx_hash(9), iavf_flex_rx_hash(9), iavf_flex_rx_tstamp(9),
• iavf_process_skb_fields(9), iavf_cleanup_headers(9),
• iavf_add_rx_frag(9), iavf_build_skb(9), iavf_is_non_eop(9),
• iavf_extract_legacy_rx_fields(9), iavf_extract_flex_rx_fields(9),
• iavf_clean_rx_irq(9), iavf_update_enable_itr(9), iavf_napi_poll(9),
• iavf_tx_prepare_vlan_flags(9), iavf_tso(9), iavf_create_tx_ctx(9),
• __iavf_chk_linearize(9), __iavf_maybe_stop_tx(9), iavf_tx_map(9),
• iavf_xmit_frame_ring(9), iavf_xmit_frame(9)

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ngl bestie, that's the whole page. no surprises, no hidden lore, just a very well-connected checksum-enabling function with an absolutely stacked contact list 💀

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and that's a wrap, babe 🌈 this lil gem lives in ./drivers/net/ethernet/intel/iavf and it's dated October 2026 — so yeah, futuristic queen behavior. go enable those offloads, you've got this 💖🎀🦋