irdma_send_fin(9)

💅 irdma_send_fin(9) — aka the "bye bestie" packet

okay so this is a page straight out of the Kernel API Manual, section 9, and the star of the show is irdma_send_fin — literally the function that sends the FIN pkt. that's it. that's the whole vibe. it's giving "we're done here, politely." 🫶

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✨ NAME ✨

irdma_send_fin — Send FIN pkt 💌

like, it sends the FIN packet. no cap, that's the summary. short and iconic, we love a concise queen.

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🦋 SYNOPSIS 🦋

int irdma_send_fin (struct irdma_cm_node *cm_node );

so she takes one argument and she hands you back an int. that's the whole signature, copy it exactly bestie, don't be out here editing it 💀

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🌸 ARGUMENTS 🌸

• cm_node — connection's node. yep, that's the connection's node. it's the node. for the connection. 🎀

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👑 SEE ALSO 👑

before you go, the original also points you at the kernel file ./drivers/infiniband/hw/irdma/cm.c, plus this absolutely stacked friend group of functions — all of them, every single one, no skipping, we don't do that here 💖

• irdma_free_sqbuf(9), irdma_record_ird_ord(9), irdma_copy_ip_ntohl(9), irdma_copy_ip_htonl(9), irdma_get_addr_info(9), irdma_fill_sockaddr4(9), irdma_fill_sockaddr6(9), irdma_get_cmevent_info(9)
• irdma_send_cm_event(9), irdma_timer_list_prep(9), irdma_create_event(9), irdma_free_retrans_entry(9), irdma_cleanup_retrans_entry(9), irdma_form_ah_cm_frame(9), irdma_form_uda_cm_frame(9), irdma_send_reset(9)
• irdma_active_open_err(9), irdma_passive_open_err(9), irdma_event_connect_error(9), irdma_process_options(9), irdma_handle_tcp_options(9), irdma_build_mpa_v1(9), irdma_build_mpa_v2(9), irdma_cm_build_mpa_frame(9)
• irdma_send_mpa_request(9), irdma_send_mpa_reject(9), irdma_negotiate_mpa_v2_ird_ord(9), irdma_parse_mpa(9), irdma_schedule_cm_timer(9), irdma_retrans_expired(9), irdma_handle_close_entry(9), irdma_cm_timer_tick(9)
• irdma_send_syn(9), irdma_send_ack(9), irdma_find_listener(9), irdma_del_multiple_qhash(9), irdma_get_vlan_mac_ipv6(9), irdma_get_vlan_ipv4(9), irdma_add_mqh_6(9), irdma_add_mqh_4(9)
• irdma_add_mqh(9), irdma_reset_list_prep(9), irdma_dec_refcnt_listen(9), irdma_cm_del_listen(9), irdma_addr_resolve_neigh(9), irdma_get_dst_ipv6(9), irdma_addr_resolve_neigh_ipv6(9), irdma_find_node(9)
• irdma_add_hte_node(9), irdma_ipv4_is_lpb(9), irdma_ipv6_is_lpb(9), irdma_cm_create_ah(9), irdma_cm_free_ah(9), irdma_make_cm_node(9), irdma_rem_ref_cm_node(9), irdma_handle_fin_pkt(9)
• irdma_handle_rst_pkt(9), irdma_handle_rcv_mpa(9), irdma_check_syn(9), irdma_check_seq(9), irdma_handle_syn_pkt(9), irdma_handle_synack_pkt(9), irdma_handle_ack_pkt(9), irdma_process_pkt(9)
• irdma_make_listen_node(9), irdma_create_cm_node(9), irdma_cm_reject(9), irdma_cm_close(9), irdma_receive_ilq(9), irdma_setup_cm_core(9), irdma_cleanup_cm_core(9), irdma_init_tcp_ctx(9)
• irdma_cm_init_tsa_conn(9), irdma_cm_disconn(9), irdma_qp_disconnect(9), irdma_cm_disconn_true(9), irdma_disconnect_worker(9), irdma_free_lsmm_rsrc(9), irdma_accept(9), irdma_reject(9)
• irdma_connect(9), irdma_create_listen(9), irdma_destroy_listen(9), irdma_teardown_list_prep(9), irdma_cm_event_connected(9), irdma_cm_event_reset(9), irdma_cm_event_handler(9), irdma_cm_post_event(9)
• irdma_cm_teardown_connections(9), irdma_qhash_ctrl(9), irdma_if_notify(9)

also the original page mentions that kernel file path ./drivers/infiniband/hw/irdma/cm.c up in the SEE ALSO line too — so yeah, it's in there twice-adjacent, not me being extra, that's just how she wrote it 💅

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🎀 that's a wrap 🎀

bestie this page came from ./drivers/infiniband/hw/irdma and she's dated October 2026 — so go forth, send that FIN pkt, and slay ✨🦋💜