idpf_tx_sin...ma_map_error(9)

💅 idpf_tx_sin...ma_map_error(9) 💅

okay bestie, welcome to the Kernel API Manual, section 9 — yes, the man page header literally cuts the name off at idpf_tx_sin...ma_map_error(9) and honestly? relatable, we've all been there 🫶. Anyway, this one's about cleaning up when a TX DMA map goes wrong. no cap, it's a whole thing.

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✨ NAME ✨

idpf_tx_singleq_dma_map_error — handle TX DMA map errors 🛠️

like, when the DMA mapping for a transmit packet doesn't go how we planned, this is the function that deals with the mess.

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🌸 SYNOPSIS 🌸

void idpf_tx_singleq_dma_map_error (struct idpf_tx_queue *txq , struct sk_buff *skb , struct idpf_tx_buf *first , u16 idx );

it's giving very void — nothing comes back out, it just handles things. main character energy, honestly 👑

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🎀 ARGUMENTS 🎀

four things, four vibes, let's go:

• txq — the queue you're sending the buffer on 🦋 like, where the packet is headed
• skb — the send buffer itself, the little packet bestie in question 📦
• first — the original first buffer info buffer for the packet 🥇 yes, the first one, the one that started it all
• idx — the starting point on the ring to unwind 🌀 think of it as "rewind from here, girl"

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🔥 SEE ALSO 🔥

starting with the file itself, because sourcing matters:

• Kernel file ./drivers/net/ethernet/intel/idpf/idpf_singleq_txrx.c

and the whole friend group — every single one, no skipping, we don't do that here 💖:

• idpf_tx_singleq_csum(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)

ngl that's a long list but every single one is here, iykyk 🌈 — and yes, idpf_tx_singleq_clean(9) and idpf_rx_singleq_clean(9) kinda twinning, that's just how it is 💀

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and that's the page, bestie! 🎀 this one came from ./drivers/net/ethernet/intel/idpf, dated October 2026 — slay, iconic, periodt. go handle those map errors, you got this 💜✨