stmmac_free_tx_buffer(9)

🎀 NAME 🎀

stmmac_free_tx_buffer — the manual's one-liner says it's for freeing RX dma buffers, and bestie we are reporting that exactly as written, no editing, no notes, that's the assignment 💅

Oh and hey — this page lives in the Kernel API Manual, so that's the vibe we're operating in ✨

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✨ SYNOPSIS ✨

void stmmac_free_tx_buffer (struct stmmac_priv *priv , struct
stmmac_dma_conf *dma_conf , u32 queue , int i );

It returns void, meaning it gives you nothing back, not even a little nod, and honestly? Respect 😌

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🫶 ARGUMENTS 🫶

• priv — the private structure 🏠 your cozy little home base for this whole operation
• dma_conf — the structure you take the dma data from, that's literally its job
• queue — the RX queue index, like which lane of the drive-thru you're in 🍓
• i — the buffer index. yes. it's just i. iconic, minimal, no notes 💀

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🦋 SEE ALSO 🦋

Okay so the "see also" section on this one is lowkey a whole friend group — everybody's here. First up, the file it actually lives in, no cap:

• Kernel file ./drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

And then, in the order the manual gives them, the extended fam 🫶:

• stmmac_set_clk_tx_rate(9), stmmac_axi_blen_to_mask(9)
• stmmac_verify_args(9), stmmac_disable_all_queues(9)
• stmmac_enable_all_queues(9), stmmac_rx_dirty(9)
• stmmac_try_to_start_sw_lpi(9), stmmac_stop_sw_lpi(9)
• stmmac_eee_ctrl_timer(9), stmmac_hwtstamp_set(9)
• stmmac_hwtstamp_get(9), stmmac_init_tstamp_counter(9)
• stmmac_init_timestamping(9), stmmac_mac_flow_ctrl(9)
• stmmac_check_pcs_mode(9), stmmac_init_phy(9)
• stmmac_clear_rx_descriptors(9), stmmac_clear_tx_descriptors(9)
• stmmac_clear_descriptors(9), stmmac_init_rx_buffers(9)
• stmmac_free_rx_buffer(9), dma_free_rx_skbufs(9), dma_free_rx_xskbufs(9)
• __init_dma_rx_desc_rings(9), __init_dma_tx_desc_rings(9)
• init_dma_desc_rings(9), dma_free_tx_skbufs(9), stmmac_free_tx_skbufs(9)
• __free_dma_rx_desc_resources(9), __free_dma_tx_desc_resources(9)
• __alloc_dma_rx_desc_resources(9), __alloc_dma_tx_desc_resources(9)
• alloc_dma_desc_resources(9), free_dma_desc_resources(9)
• stmmac_mac_enable_rx_queues(9), stmmac_start_rx_dma(9)
• stmmac_start_tx_dma(9), stmmac_stop_rx_dma(9), stmmac_stop_tx_dma(9)
• stmmac_start_all_dma(9), stmmac_stop_all_dma(9)
• stmmac_dma_operation_mode(9), stmmac_tx_clean(9), stmmac_tx_err(9)
• stmmac_set_dma_operation_mode(9), stmmac_dma_interrupt(9)
• stmmac_mmc_setup(9), stmmac_get_hw_features(9)
• stmmac_check_ether_addr(9), stmmac_init_dma_engine(9)
• stmmac_tx_timer(9), stmmac_init_coalesce(9)
• stmmac_set_tx_queue_weight(9), stmmac_configure_cbs(9)
• stmmac_rx_queue_dma_chan_map(9), stmmac_mac_config_rx_queues_prio(9)
• stmmac_mac_config_tx_queues_prio(9)
• stmmac_mac_config_rx_queues_routing(9), stmmac_mtl_configuration(9)
• stmmac_hw_setup(9), stmmac_setup_dma_desc(9), __stmmac_open(9)
• stmmac_release(9), stmmac_tso_allocator(9), stmmac_tso_xmit(9)
• stmmac_has_ip_ethertype(9), stmmac_xmit(9), stmmac_rx_refill(9)
• stmmac_rx(9), stmmac_tx_timeout(9), stmmac_set_rx_mode(9)
• stmmac_change_mtu(9), stmmac_interrupt(9), stmmac_ioctl(9)
• stmmac_hw_init(9), stmmac_dvr_probe(9), stmmac_dvr_remove(9)
• stmmac_suspend(9), stmmac_reset_queues_param(9), stmmac_resume(9)

Like I said. Everybody. Every single one of them, listed, accounted for, not one skipped 💖

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🌸 a lil sign-off 🌸

This page is from ./drivers/net/ethernet/stmicro... (that's how it's written in the footer, truncated and all, so that's how I'm handing it to you 🎀) and it's dated October 2026. Slay, see you in the next one, mwah 💜🦋✨