i40e_pci_sriov_enable(9)

💖 i40e_pci_sriov_enable(9) — bestie edition 💖

okay so picture this: it's the Kernel API Manual, and the main character of this page is i40e_pci_sriov_enable(9). She's a function, she lives in the i40e driver, and she's about to make your SR-IOV era happen. let's get into it 🦋

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✨ SYNOPSIS ✨

int i40e_pci_sriov_enable (struct pci_dev *pdev , int num_vfs );

like, that's the whole signature. short, iconic, no notes 💅

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🎀 ARGUMENTS 🎀

• pdev — a pointer to a pci_dev structure. yes bestie, the actual PCI device struct, she's the one holding the vibes 🌸
• num_vfs — the number of VFs to allocate. that's how many virtual functions you're asking for, fr fr 🔥

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👑 DESCRIPTION 👑

Enable or change the number of VFs.

that's it. that's the whole description. lowkey legendary of her to be this concise 🫶

like — she enables them, or she changes how many there are. either way, VFs are happening. periodt ✨

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🌈 SEE ALSO 🌈

okay this is the part where the page goes full group-chat-tag-list. every single one of these is (9), and yes we're keeping all of them because we do NOT leave anyone on read 💖

the kernel file, first and foremost:

• Kernel file ./drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c — the actual home address of this whole situation 🎀

the link-state / notify / reset girlies:

• i40e_vc_vf_broadcast(9), i40e_vc_link_speed2mbps(9), i40e_set_vf_link_state(9), i40e_vc_notify_vf_link_state(9), i40e_vc_notify_link_state(9), i40e_vc_notify_reset(9), i40e_vc_notify_vf_reset(9), i40e_vc_reset_vf(9) ⭐

the id-checkers (they WILL check your id):

• i40e_vc_isvalid_vsi_id(9), i40e_vc_isvalid_queue_id(9), i40e_vc_isvalid_vector_id(9), i40e_vc_get_pf_queue_id(9), i40e_get_real_pf_qid(9), i40e_config_irq_link_list(9) 💅

queues, rdma qvlist, and vsi resources:

• i40e_release_rdma_qvlist(9), i40e_config_rdma_qvlist(9), i40e_config_vsi_tx_queue(9), i40e_config_vsi_rx_queue(9), i40e_alloc_vsi_res(9), i40e_map_pf_queues_to_vsi(9), i40e_map_pf_to_vf_queues(9) 🌸

mappings, vf resources, and the pci quiesce moment:

• i40e_enable_vf_mappings(9), i40e_disable_vf_mappings(9), i40e_free_vf_res(9), i40e_alloc_vf_res(9), i40e_quiesce_vf_pci(9) 🦋

vlan filters, promisc, and the reset squad:

• __i40e_getnum_vf_vsi_vlan_filters(9), i40e_getnum_vf_vsi_vlan_filters(9), i40e_get_vlan_list_sync(9), i40e_set_vsi_promisc(9), i40e_config_vf_promiscuous_mode(9), i40e_sync_vfr_reset(9), i40e_trigger_vf_reset(9), i40e_cleanup_reset_vf(9), i40e_reset_vf(9), i40e_reset_all_vfs(9) 🔥

the alloc/free/configure trio (her siblings honestly):

• i40e_free_vfs(9), i40e_alloc_vfs(9), i40e_pci_sriov_configure(9) 👑

message-sending & version & frame size:

• i40e_vc_send_msg_to_vf(9), i40e_vc_send_resp_to_vf(9), i40e_sync_vf_state(9), i40e_vc_get_version_msg(9), i40e_del_qch(9), i40e_vc_get_max_frame_size(9) 💜

the msg handlers, part one:

• i40e_vc_get_vf_resources_msg(9), i40e_vc_config_promiscuous_mode_msg(9), i40e_vc_config_queues_msg(9), i40e_validate_queue_map(9), i40e_vc_config_irq_map_msg(9), i40e_ctrl_vf_tx_rings(9), i40e_ctrl_vf_rx_rings(9), i40e_vc_validate_vqs_bitmaps(9) 🌟

the msg handlers, part two:

• i40e_vc_enable_queues_msg(9), i40e_vc_disable_queues_msg(9), i40e_check_enough_queue(9), i40e_vc_request_queues_msg(9), i40e_vc_get_stats_msg(9), i40e_check_vf_permission(9), i40e_vc_ether_addr_type(9), i40e_is_vc_addr_legacy(9), i40e_is_vc_addr_primary(9), i40e_update_vf_mac_addr(9) 🍓

mac & vlan & rdma msgs:

• i40e_vc_add_mac_addr_msg(9), i40e_vc_del_mac_addr_msg(9), i40e_vc_add_vlan_msg(9), i40e_vc_remove_vlan_msg(9), i40e_vc_rdma_msg(9), i40e_vc_rdma_qvmap_msg(9) 🧚

rss & vlan stripping (the glamour corner):

• i40e_vc_config_rss_key(9), i40e_vc_config_rss_lut(9), i40e_vc_get_rss_hashcfg(9), i40e_vc_set_rss_hashcfg(9), i40e_vc_enable_vlan_stripping(9), i40e_vc_disable_vlan_stripping(9) 💫

cloud filters, all of them:

• i40e_validate_cloud_filter(9), i40e_find_vsi_from_seid(9), i40e_del_all_cloud_filters(9), i40e_vc_del_cloud_filter(9), i40e_vc_add_cloud_filter(9), i40e_vc_add_qch_msg(9), i40e_vc_del_qch_msg(9) ☁️

processing, validation, timeouts:

• i40e_vc_process_vf_msg(9), i40e_vc_process_vflr_event(9), i40e_validate_vf(9), i40e_check_vf_init_timeout(9) ⏳

the ndo gang + trust + stats (saving the best for last, obviously):

• i40e_ndo_set_vf_mac(9), i40e_ndo_set_vf_port_vlan(9), i40e_ndo_set_vf_bw(9), i40e_ndo_get_vf_config(9), i40e_ndo_set_vf_link_state(9), i40e_ndo_set_vf_spoofchk(9), i40e_setup_vf_trust(9), i40e_ndo_set_vf_trust(9), i40e_get_vf_stats(9) 🏆

iykyk, that's 95 cross-references and every single one made the cut. no cap. 💀

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🫶 the sign-off 🫶

this lil beauty comes to you straight from ./drivers/net/ethernet/intel/i40e, dated October 2026, and she answers to i40e_pci_sriov_enable(9). go enable some VFs bestie, you got this 💖✨🎀