calc_tx_flits_ofld(9)

✨ calc_tx_flits_ofld(9) ✨

okay so this is a page from the Kernel API Manual (section 9, bestie, we're in kernel-internals territory 💅) and it's all about one lil function that counts flits. yes. flits. we love a niche unit 🎀

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🌸 NAME 🌸

calc_tx_flits_ofld — literally just calculating how many flits an offload packet needs, no cap 💖

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🦋 SYNOPSIS 🦋

unsigned int calc_tx_flits_ofld (const struct sk_buff *skb );

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🎀 ARGUMENTS 🎀

• skb — the packet. that's it, that's the whole argument, she's a const struct sk_buff * and she's the main character here 👑

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💜 DESCRIPTION 💜

So this function returns the number of flits needed for the offload packet you hand it. 🔥

And here's the vibe check on these particular packets: they are already fully constructed — like, fully glammed up and ready to go — so no additional headers will be added. periodt. no extra accessories, she's already dressed 🌈

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⭐ SEE ALSO ⭐

okay this list is LONG, like genuinely iconic-length, so buckle up bestie — all of these live in the kernel file ./drivers/net/ethernet/chelsio/cxgb4/sge.c:

• txq_avail(9)
• fl_cap(9)
• fl_starving(9)
• deferred_unmap_destructor(9)
• free_tx_desc(9)
• reclaim_completed_tx(9)
• cxgb4_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)
• 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)

like I said. sixty-something functions. she ate and left no crumbs 🍓

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and that's the whole page!! tysm for reading, ily 🫶 this lil gem comes to you from ./drivers/net/ethernet/chelsio... dated October 2026, and it's calc_tx_flits_ofld(9) forever and always 💖✨