qeth_get_elements_for_frags(9)

💅 qeth_get_elements_for_frags(9) 💅

okay so this is from the Kernel API Manual, and honestly? it's a little baddie. let's get into it 🎀

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✨ NAME ✨

qeth_get_elements_for_frags — find number of SBALEs for skb frags. periodt.

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🦋 SYNOPSIS 🦋

int qeth_get_elements_for_frags (struct sk_buff *skb );

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🌸 ARGUMENTS 🌸

• skb — the SKB address. that's it, that's the whole argument. she's low maintenance 💅

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💖 DESCRIPTION 💖

okay so bestie, what this function does is it returns the number of pages — and therefore the number of QDIO buffer elements — that you need to cover the fragmented part of the SKB. that's the vibe check it's running. 🔥

and like, special case: it returns zero for a linear SKB. no frags, no elements, zero, done, bye 🫶

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👑 SEE ALSO 👑

the kernel file ./drivers/s390/net/qeth_core_main.c and her whole friend group:

• qeth_irq(9)
• qeth_send_control_data(9)
• qeth_prep_flush_pack_buffer(9)
• qeth_count_elements(9)
• qeth_add_hw_header(9)
• qeth_fill_buffer(9)
• qeth_vm_request_mac(9)
• qeth_enable_hw_features(9)

like genuinely an iconic lineup, iykyk 💀✨

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and that's the page!! 🌈 this little gem lives in ./drivers/s390/net and it's dated October 2026 — anyway ily, go read your kernel source, mwah 💜🧚‍♀️