stmmac_clear_descriptors(9)

🦋 stmmac_clear_descriptors(9) — Kernel API Manual 🦋

okay bestie, this is stmmac_clear_descriptors(9) from the Kernel API Manual, and it's giving short-and-sweet kernel-api realness. every tiny detail is staying, periodt. 💅

✨ NAME ✨

stmmac_clear_descriptors — clear descriptors. literally the name, and it ate.

✨ SYNOPSIS ✨

the signature is right here, bestie — copy it exactly, no freestyling:

void stmmac_clear_descriptors (struct stmmac_priv *priv , struct
       stmmac_dma_conf *dma_conf );

✨ ARGUMENTS ✨

• priv — driver private structure. the driver's own little private stash, lowkey essential.
• dma_conf — structure to take the dma data. the dma data goes in here, no cap.

✨ DESCRIPTION ✨

okay so this function is called to clear the TX and RX descriptors — and it covers the case where both basic descriptors and extended descriptors are used. both flavors are in the group chat, fr fr. 💖

✨ SEE ALSO ✨

the whole stmmac friend group is here, and yes you should say hi to every single one of them, iykyk:

• Kernel file ./drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
• 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_init_rx_buffers(9), stmmac_free_rx_buffer(9), stmmac_free_tx_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)

mwah 💋 source/version check: this page lives at ./drivers/net/ethernet/stmicro..., dated October 2026, and it's still stmmac_clear_descriptors(9) — bye bestie, go slay those descriptors. 🌈💖