idpf_open(9)

💖 NAME 💖

okay so welcome to the idpf_open page, straight out of the Kernel API Manual (section 9, we're fancy like that) — and this one is literally the function that gets called when a network interface becomes active. bestie, it's giving "first day of school energy" for a NIC 💅✨

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🦋 SYNOPSIS 🦋

int idpf_open (struct net_device *netdev );

no cap, that's the whole signature. short king 👑

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🎀 ARGUMENTS 🎀

• netdev — the network interface device structure. that's the whole vibe check — it's the thing getting opened 🫶

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✨ DESCRIPTION ✨

okay so picture this: the open entry point gets called when the system makes a network interface active — that's the IFF_UP flag babe, iconic. and when that happens, it's not just a little wave hello, it's a whole getting-ready routine 🌸

at this point, literally all the resources needed for transmit and receive operations are allocated. the interrupt handler gets registered with the OS (yes, fr fr, officially on the books 📋), the netdev watchdog is enabled (it's watching 👀), and the stack is notified that the interface is ready — like sending "i'm outside" in the group chat 💬

Returns 0 on success, negative value on failure. so if you see a negative number, that's your cue to go 😭

ngl, failure is not the vibe here — but it's a real possible outcome, so handle it, bestie 💀

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👑 SEE ALSO 👑

first up, the source file itself — you know, in case you wanna read the actual receipts:

• Kernel file ./drivers/net/ethernet/intel/idpf/idpf_lib.c

and now the whole friend group — every single one of these, no skips, we're not cutting anyone from the list 🫶💖

• idpf_init_vector_stack(9)
• idpf_deinit_vector_stack(9)
• idpf_mb_intr_rel_irq(9)
• idpf_intr_rel(9)
• idpf_mb_intr_clean(9)
• idpf_mb_irq_enable(9)
• idpf_mb_intr_req_irq(9)
• idpf_mb_intr_init(9)
• idpf_vector_lifo_push(9)
• idpf_vector_lifo_pop(9)
• idpf_vector_stash(9)
• idpf_req_rel_vector_indexes(9)
• idpf_intr_req(9)
• idpf_del_all_flow_steer_filters(9)
• idpf_find_mac_filter(9)
• __idpf_del_mac_filter(9)
• idpf_del_mac_filter(9)
• __idpf_add_mac_filter(9)
• idpf_add_mac_filter(9)
• idpf_del_all_mac_filters(9)
• idpf_restore_mac_filters(9)
• idpf_remove_mac_filters(9)
• idpf_deinit_mac_addr(9)
• idpf_init_mac_addr(9)
• idpf_cfg_netdev(9)
• idpf_get_free_slot(9)
• idpf_remove_features(9)
• idpf_vport_stop(9)
• idpf_stop(9)
• idpf_decfg_netdev(9)
• idpf_vport_rel(9)
• idpf_vport_dealloc(9)
• idpf_is_hsplit_supported(9)
• idpf_vport_get_hsplit(9)
• idpf_vport_set_hsplit(9)
• idpf_vport_alloc(9)
• idpf_get_stats64(9)
• idpf_statistics_task(9)
• idpf_mbx_task(9)
• idpf_service_task(9)
• idpf_restore_features(9)
• idpf_set_real_num_queues(9)
• idpf_up_complete(9)
• idpf_rx_init_buf_tail(9)
• idpf_vport_open(9)
• idpf_init_task(9)
• idpf_sriov_ena(9)
• idpf_sriov_configure(9)
• idpf_deinit_task(9)
• idpf_check_reset_complete(9)
• idpf_init_hard_reset(9)
• idpf_vc_event_task(9)
• idpf_initiate_soft_reset(9)
• idpf_addr_sync(9)
• idpf_addr_unsync(9)
• idpf_set_rx_mode(9)
• idpf_set_features(9)
• idpf_change_mtu(9)
• idpf_chk_tso_segment(9)
• idpf_features_check(9)
• idpf_set_mac(9)

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and that's the page, bestie 🌈 this icon lives at ./drivers/net/ethernet/intel/idpf and the date stamp on it is October 2026 — so like, mark your calendars and stan responsibly 💜🧚🍓