wx_alloc_q_vectors(9)

💖 wx_alloc_q_vectors(9) — Kernel API Manual, but make it make sense 💖

okay bestie, welcome to the wx_alloc_q_vectors(9) chapter of the Kernel API Manual ✨ this is the page that handles one (1) job and honestly? it does it. we're talking interrupt vectors, we're talking memory allocation, we're talking the tiniest sliver of the Wangxun driver universe. let's get into it 🫶

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🌸 NAME 🌸

wx_alloc_q_vectors — literally "allocate memory for interrupt vectors" 💅 that's the whole vibe, that's the whole function.

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⭐ SYNOPSIS ⭐

int wx_alloc_q_vectors (struct wx *wx );

(yes the spacing in there is exactly like that, don't @ me, copy it verbatim 😭)

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🎀 ARGUMENTS 🎀

• wx — the board private structure you're initializing. this is the one you're setting up, the main character of the call 👑

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✨ DESCRIPTION ✨

so here's the tea 🍓: we allocate one q_vector per queue interrupt. that's it. that's the deal. one queue interrupt → one q_vector, no cap.

and if that allocation fails? bestie. it fails. 😭 we return -ENOMEM. that's the whole error story, nothing fancy, no dramatic monologue, just -ENOMEM and we move on.

ngl, if you see -ENOMEM coming back you're out of memory and there is no alternate secret code path. that's the vibe check and it failed 💀

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👑 SEE ALSO 👑

first up, the source of truth: the Kernel file ./drivers/net/ethernet/wangxun/libwx/wx_lib.c — go read it, it's giving lore 📖

and then the whole friend group, in order, no skips: wx_alloc_rx_buffers(9), wx_is_non_eop(9), wx_cleanup_headers(9), wx_rx_checksum(9), wx_process_skb_fields(9), wx_clean_rx_irq(9), wx_clean_tx_irq(9), wx_poll(9), wx_set_rss_queues(9), wx_acquire_msix_vectors(9), wx_set_interrupt_capability(9), wx_cache_ring_rss(9), wx_alloc_q_vector(9), wx_free_q_vector(9), wx_free_q_vectors(9), wx_clear_interrupt_scheme(9), wx_setup_isb_resources(9), wx_free_isb_resources(9), wx_set_ivar(9), wx_write_eitr(9), wx_configure_vectors(9), wx_clean_rx_ring(9), wx_clean_all_rx_rings(9), wx_free_rx_resources(9), wx_free_all_rx_resources(9), wx_clean_tx_ring(9), wx_clean_all_tx_rings(9), wx_free_tx_resources(9), wx_free_all_tx_resources(9), wx_setup_rx_resources(9), wx_setup_all_rx_resources(9), wx_setup_tx_resources(9), wx_setup_all_tx_resources(9), wx_get_stats64(9) 🔥

like, that's the entire group chat and they're all icons. iykyk 💜

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okay that's the page!! mwah, go allocate responsibly 🧚 and remember: source ./drivers/net/ethernet/wangxun..., dated October 2026 — that's the version, that's the date, that's the sign-off, periodt 💅✨🌈