idpf_tx_singleq_csum(9)

💅 idpf_tx_singleq_csum — bestie, let's talk TX checksum offloads ✨

Okay so this is a page from the Kernel API Manual (idpf_tx_singleq_csum(9), section 9 — the kernel internals girlies know 😌), and honestly? It's a little one, but it's important, so let's get into it. 🎀

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🌸 SYNOPSIS 🌸

int idpf_tx_singleq_csum (struct sk_buff *skb , struct
       idpf_tx_offload_params *off );

Like, that's the whole signature. Short and iconic. 👑

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✨ ARGUMENTS ✨

• skb — pointer to skb 🦋 (yes bestie, the socket buffer, the main character itself)
• off — pointer to the struct that holds offload parameters 💜

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🔥 DESCRIPTION 🔥

So what does it actually do? It enables tx checksum offloads. That's the whole vibe. 🫶

It returns 0 or an error (negative) if the checksum offload cannot be executed. Otherwise? It returns 1. No cap. 💀

Lowkey important: 0-or-negative means nope, 1 means slay. Don't mix those up bestie. 🙈

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🦋 SEE ALSO 🦋

Kernel file ./drivers/net/ethernet/intel/idpf/idpf_singleq_txrx.c — that's the home base, go look at it, iykyk 💅

And the whole friend group:

• idpf_tx_singleq_dma_map_error(9)
• idpf_tx_singleq_map(9)
• idpf_tx_singleq_get_ctx_desc(9)
• idpf_tx_singleq_build_ctx_desc(9)
• idpf_tx_singleq_frame(9)
• idpf_tx_singleq_clean(9)
• idpf_tx_singleq_clean_all(9)
• idpf_rx_singleq_test_staterr(9)
• idpf_rx_singleq_is_non_eop(9)
• idpf_rx_singleq_csum(9)
• idpf_rx_singleq_base_csum(9)
• idpf_rx_singleq_flex_csum(9)
• idpf_rx_singleq_base_hash(9)
• idpf_rx_singleq_flex_hash(9)
• __idpf_rx_singleq_process_skb_fields(9)
• idpf_rx_buf_hw_update(9)
• idpf_rx_singleq_buf_hw_alloc_all(9)
• idpf_rx_singleq_extract_base_fields(9)
• idpf_rx_singleq_extract_flex_fields(9)
• idpf_rx_singleq_extract_fields(9)
• idpf_rx_singleq_clean(9)
• idpf_rx_singleq_clean_all(9)
• idpf_vport_singleq_napi_poll(9)

Like, that's a whole squad, not me listing the entire idpf friend group or anything. 🧚⭐

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So yeah — that's the page! It lives in ./drivers/net/ethernet/intel/idpf, dated October 2026, and it's from the kernel API manual set. Mwah, go off, checksum offloads 💖🎀🌈