libeth_xsk_wakeup(9)

💅 libeth_xsk_wakeup(9) — a Kernel API Manual moment

okay so bestie, welcome to libeth_xsk_wakeup from the Kernel API Manual ✨ this little icon does an XSk wakeup and honestly? it's giving main character energy in the networking layer 🦋

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✨ NAME ✨

libeth_xsk_wakeup — perform an XSk wakeup 🎀

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🌸 SYNOPSIS 🌸

void libeth_xsk_wakeup (call_single_data_t *csd , u32 qid );

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💖 ARGUMENTS 💖

• csd — the CSD corresponding to the queue 👑 (yes, that's the call_single_data_t one, keep up bestie)
• qid — the stack queue index 🔢

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🧚 DESCRIPTION 🧚

k so here's the vibe 💫 First it tries to mark the NAPI as missed, so that it could get rescheduled later. If it's not marked missed, then it schedules it on the corresponding CPU using IPIs — or directly, if it's already running on that CPU 😌 slay, efficiency.

not me doing the scheduling math in my head — IPIs are inter-processor interrupts btw, just so you're not lost iykyk 💅

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🦋 SEE ALSO 🦋

• Kernel file ./drivers/net/ethernet/intel/libeth/xsk.c 📁
• libeth_xsk_buff_free_slow(9)
• libeth_xsk_buff_add_frag(9)
• libeth_xsk_buff_stats_frags(9)
• __libeth_xsk_run_prog_slow(9)
• libeth_xsk_prog_exception(9)
• libeth_xskfq_create(9)
• libeth_xskfq_destroy(9)
• libeth_xsk_init_wakeup(9)
• libeth_xsk_setup_pool(9)

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fr fr that's the whole page, go read the friends too, they ate 🔥

and that's a wrap bestie 🫶 this one comes from ./drivers/net/ethernet/intel/libeth/xsk.c (the manpage footer truncates it all cute as ./drivers/net/ethernet/intel/l... 💀) and it's dated October 2026 ⭐ mwah, take care of her 💜