cxgb4_reclaim_completed_tx(9)

💅 cxgb4_reclaim_completed_tx(9) 💅

Okay bestie, we're in the Kernel API Manual and this page is all about cxgb4_reclaim_completed_tx(9) — the "reclaims completed Tx descriptors" girlie. Let's get into it 💖

🌸 NAME 🌸

cxgb4_reclaim_completed_tx — reclaims completed Tx descriptors. That's the whole name vibe, periodt ✨

✨ SYNOPSIS ✨

void cxgb4_reclaim_completed_tx (struct adapter *adap , struct sge_txq
*q , bool unmap );

🎀 ARGUMENTS 🎀

• adap — the adapter. Like, the actual adapter in question 🫶
• q — the Tx queue to reclaim completed descriptors from 📥
• unmap — whether the buffers should be unmapped for DMA 🧚

🦋 DESCRIPTION 🦋

So what does it do? It reclaims Tx descriptors that the SGE has indicated it has processed, and frees the associated buffers if possible. No cap, that's the core of it 🔥

Big important vibe check: it's called with the Tx queue locked. Like, locked locked 🔒 Don't forget that part.

🌈 SEE ALSO 🌈

The whole extended friend group lives here — Kernel file ./drivers/net/ethernet/chelsio/cxgb4/sge.c and all these besties:

• txq_avail(9)
• fl_cap(9)
• fl_starving(9)
• deferred_unmap_destructor(9)
• free_tx_desc(9)
• reclaim_completed_tx(9)
• free_rx_bufs(9)
• unmap_rx_buf(9)
• refill_fl(9)
• alloc_ring(9)
• sgl_len(9)
• flits_to_desc(9)
• is_eth_imm(9)
• calc_tx_flits(9)
• cxgb4_write_sgl(9)
• cxgb4_ring_tx_db(9)
• cxgb4_inline_tx_skb(9)
• t4_sge_eth_txq_egress_update(9)
• cxgb4_eth_xmit(9)
• t4vf_is_eth_imm(9)
• t4vf_calc_tx_flits(9)
• cxgb4_vf_eth_xmit(9)
• reclaim_completed_tx_imm(9)
• cxgb4_ethofld_send_flowc(9)
• is_imm(9)
• ctrlq_check_stop(9)
• ctrl_xmit(9)
• restart_ctrlq(9)
• t4_mgmt_tx(9)
• is_ofld_imm(9)
• calc_tx_flits_ofld(9)
• txq_stop_maperr(9)
• ofldtxq_stop(9)
• service_ofldq(9)
• ofld_xmit(9)
• restart_ofldq(9)
• skb_txq(9)
• is_ctrl_pkt(9)
• t4_ofld_send(9)
• cxgb4_ofld_send(9)
• ofld_xmit_direct(9)
• t4_crypto_send(9)
• cxgb4_crypto_send(9)
• cxgb4_pktgl_to_skb(9)
• t4_pktgl_free(9)
• cxgb4_sgetim_to_hwtstamp(9)
• t4_systim_to_hwstamp(9)
• t4_rx_hststamp(9)
• t4_tx_hststamp(9)
• t4_tx_completion_handler(9)
• t4_ethrx_handler(9)
• restore_rx_bufs(9)
• is_new_response(9)
• rspq_next(9)
• process_responses(9)
• napi_rx_handler(9)
• t4_intr_handler(9)
• bar2_address(9)
• t4_sge_alloc_eth_txq(9)
• t4_free_sge_resources(9)
• t4_sge_stop(9)
• t4_sge_init_soft(9)
• t4_sge_init(9)

Source/version + date from the footer: ./drivers/net/ethernet/chelsio... — October 2026 — cxgb4_reclaim_completed_tx(9). Bye bestie, go reclaim those descriptors responsibly 🫶💜✨