i40e_check_vf_permission(9)

✨ NAME ✨

i40e_check_vf_permission(9) — welcome to the Kernel API Manual page, bestie. The original NAME line is just i40e_check_vf_permission - with nothing after the dash, so that's the whole name vibe. 💅 No extra subtitle, no cap.

🌸 SYNOPSIS 🌸

int i40e_check_vf_permission (struct i40e_vf *vf , struct
       virtchnl_ether_addr_list *al );

🎀 ARGUMENTS 🎀

• vf — pointer to the VF info. 🫶
• al — MAC address list from virtchnl. 💌

💅 DESCRIPTION 💅

So the mission, bestie: Check that the given list of MAC addresses is allowed. Will return -EPERM if any address in the list is not valid. It checks the following conditions:

1. broadcast and zero addresses are never valid — literally never, okay? 💀
2. unicast addresses are not allowed if the VMM has administratively set the VF MAC address, unless the VF is marked as privileged. — periodt, that's the rule. 👑
3. There is enough space to add all the addresses. — yes, the space check is part of the vibe. ✨

⚠️ bestie, note that to guarantee consistency, it is expected this function be called while holding the mac_filter_hash_lock, as otherwise the current number of addresses might not be accurate. Hold the lock, fr fr. 🙈

🦋 SEE ALSO 🦋

• Kernel file: ./drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c — the source file, slay. 📁
• The rest of the squad: 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), 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), 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). 🫶
• More icons: i40e_map_pf_to_vf_queues(9), 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), __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), i40e_free_vfs(9), i40e_alloc_vfs(9), i40e_pci_sriov_enable(9), i40e_pci_sriov_configure(9). 💖
• Still going, bestie: 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), 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), 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_vc_ether_addr_type(9). ✨
• MAC-address lore: i40e_is_vc_addr_legacy(9), i40e_is_vc_addr_primary(9), i40e_update_vf_mac_addr(9), 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), 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), 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). 🌈
• Final faves: i40e_vc_add_qch_msg(9), i40e_vc_del_qch_msg(9), i40e_vc_process_vf_msg(9), i40e_vc_process_vflr_event(9), i40e_validate_vf(9), i40e_check_vf_init_timeout(9), 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). 👑

and that's the whole page, bestie 🫶💖 — source/version vibe: ./drivers/net/ethernet/intel/i40e, date: October 2026. i40e_check_vf_permission(9) signing off. mwah 💋✨