cxgb3_arp_process(9)

💅 cxgb3_arp_process — like, the kernel API manual edition, bestie

okay so picture this: you're deep in the kernel API manual, the manual name is literally cxgb3_arp_process(9), and you've stumbled onto this little function that's out here doing the most specific job ever. sit down, grab a strawberry 🍓, we're gonna go through it.

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✨ NAME ✨

cxgb3_arp_process — it processes an ARP request that's out here probing a private IP address. that's the whole vibe. no cap. 🎀

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🦋 SYNOPSIS 🦋

void cxgb3_arp_process (struct port_info *pi , struct sk_buff *skb );

look at her go. void, no return value, just vibes and two arguments. ✨

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🌸 ARGUMENTS 🌸

• pi — the port info. that's the port's whole little ID card, bestie. 🪪
• skb — the skbuff that's carrying the ARP request. like, the actual packet in its little envelope. 💌

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👑 DESCRIPTION 👑

so here's the tea ☕: this function checks whether the ARP request is probing the private IP address that's dedicated to iSCSI. if it is — boom — it generates an ARP reply. that's it. that's the whole job. iconic, honestly. 🫶

no extra lore, no side quests, just: is this ARP looking for the iSCSI private IP? then answer it. periodt. 💅

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🌈 SEE ALSO 🌈

ngl this list is long and I love that for us — it's basically the whole sge.c friend group. the kernel file is ./drivers/net/ethernet/chelsio/cxgb3/sge.c, and these are all the besties in it:

• refill_rspq(9), need_skb_unmap(9), unmap_skb(9), free_tx_desc(9), reclaim_completed_tx(9), should_restart_tx(9), free_rx_bufs(9), add_one_rx_buf(9), refill_fl(9), recycle_rx_buf(9), alloc_ring(9), t3_reset_qset(9), t3_free_qset(9), init_qset_cntxt(9), sgl_len(9), flits_to_desc(9), get_packet(9), get_packet_pg(9), get_imm_packet(9), calc_tx_descs(9), write_sgl(9), check_ring_tx_db(9), write_wr_hdr_sgl(9), write_tx_pkt_wr(9), t3_eth_xmit(9), write_imm(9), check_desc_avail(9), reclaim_completed_tx_imm(9), ctrl_xmit(9), restart_ctrlq(9), deferred_unmap_destructor(9), write_ofld_wr(9), calc_tx_descs_ofld(9), ofld_xmit(9), restart_offloadq(9), queue_set(9), is_ctrl_pkt(9), t3_offload_tx(9), offload_enqueue(9), deliver_partial_bundle(9), ofld_poll(9), rx_offload(9), restart_tx(9), rx_eth(9), lro_add_page(9), handle_rsp_cntrl_info(9), check_ring_db(9), is_new_response(9), process_responses(9), napi_rx_handler(9), process_pure_responses(9), handle_responses(9), t3_intr_handler(9), t3_sge_err_intr_handler(9), sge_timer_tx(9), sge_timer_rx(9), t3_update_qset_coalesce(9), t3_sge_alloc_qset(9), t3_start_sge_timers(9), t3_stop_sge_timers(9), t3_free_sge_resources(9), t3_sge_start(9), t3_sge_stop_dma(9), t3_sge_stop(9), t3_sge_init(9), t3_sge_prep(9)

go read them, iykyk. 📚

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okay that's the whole page, no crumbs left. 💖

and finally, the cute lil sign-off: this page came from ./drivers/net/ethernet/chelsio... (the source/version line, bestie ✨) and it's dated October 2026, so mark your calendars. cxgb3_arp_process(9) forever. 🎀🦋💜