libie_ctlq_xn_rel_tx_buf(9)

🌸 libie_ctlq_xn_rel_tx_buf(9) — like, the Kernel API Manual era 💅

okay so bestie, welcome to the Kernel API Manual, and today's main character is libie_ctlq_xn_rel_tx_buf(9). pull up a chair, grab a boba, we're gonna talk about giving a Tx message buffer back to the universe ✨

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✨ NAME ✨

libie_ctlq_xn_rel_tx_buf — release xn-controlled Tx message buffer 🫶

like, it literally hands the buffer back. that's the whole vibe.

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💖 SYNOPSIS 💖

void libie_ctlq_xn_rel_tx_buf (const void *ctx , struct libie_cp_dma_mem
*dma_mem );

no cap, that's the signature. void return, two arguments, we move 💅

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🎀 ARGUMENTS 🎀

• ctx — the context, namely DMA device and freeing function. it's giving "here's who you are and here's how to let go" energy 👑
• dma_mem — DMA memory to reclaim/unmap. this one's the actual memory being reclaimed or unmapped, she's the whole point of the function fr fr 🌸

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🦋 SEE ALSO 🦋

okay so this list is long and honestly iconic, every single one of these is a bestie. here we go, no skipping, iykyk:

• the Kernel file ./drivers/net/ethernet/intel/libie/controlq.c — that's where she lives 🏠
• libie_ctlq_free_fq(9)
• libie_ctlq_init_fq(9)
• libie_ctlq_prep_rx_desc(9)
• libie_ctlq_post_rx_buffs(9)
• libie_ctlq_free_tx_msgs(9)
• libie_ctlq_alloc_tx_msgs(9)
• libie_cp_free_desc_mem(9)
• libie_ctlq_dealloc_ring_res(9)
• libie_cp_alloc_desc_mem(9)
• libie_ctlq_alloc_queue_res(9)
• libie_ctlq_init_regs(9)
• libie_find_ctlq(9)
• libie_ctlq_add(9)
• libie_ctlq_remove(9)
• libie_ctlq_init(9)
• libie_ctlq_deinit(9)
• libie_ctlq_tx_desc_from_msg(9)
• libie_ctlq_send_desc_avail(9)
• libie_ctlq_send(9)
• libie_ctlq_send_clean(9)
• libie_ctlq_fill_rx_msg(9)
• libie_ctlq_recv(9)
• libie_ctlq_xn_pop_free(9)
• __libie_ctlq_xn_push_free(9)
• libie_ctlq_xn_push_free(9)
• libie_ctlq_xn_deinit_dma(9)
• libie_ctlq_xn_init_dma(9)
• libie_ctlq_xn_process_recv(9)
• libie_xn_check_async_timeout(9)
• libie_ctlq_xn_recv(9)
• libie_cp_map_dma_mem(9)
• libie_cp_unmap_dma_mem(9)
• libie_ctlq_xn_process_send(9)
• libie_ctlq_xn_send(9)
• struct libie_ctlq_xn_rel_tx_ctx(9)
• libie_ctlq_xn_send_clean(9)
• libie_ctlq_xn_shutdown(9)
• libie_ctlq_xn_deinit(9)
• libie_ctlq_xn_init(9)

like, that's the whole friend group. go read them, they ate 🔥

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pspsps — this page is from ./drivers/net/ethernet/intel/l... (yes the path got cut off, that's just how the footer shipped, don't come for me 😭) and it's dated October 2026. matching footer title is libie_ctlq_xn_rel_tx_buf(9), slay. luv u, bye bestie 💜🦋✨