iavf_send_pf_msg(9)

💌 iavf_send_pf_msg(9) — the Kernel API Manual moment

okay so bestie, welcome to the Kernel API Manual entry for iavf_send_pf_msg(9), and ngl this one is short but it's kind of a big deal — it's the lil messenger pigeon between your VF and the PF. let's get into it 🕊️✨

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🌸 NAME 🌸

iavf_send_pf_msg — literally just the name, no blurb, the manpage said "no description, we're mysterious" 💅 (yes, it's blank in the original, so it's blank here too, we respect the vibe)

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✨ SYNOPSIS ✨

int iavf_send_pf_msg (struct iavf_adapter *adapter , enum virtchnl_ops
op , u8 *msg , u16 len );

that's the whole signature, copy it exact, don't touch it 🫶

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🎀 ARGUMENTS 🎀

• adapter — the adapter structure, aka the main character of this whole operation 👑
• op — the virtual channel opcode, like the little label on the envelope telling the PF what kind of message this is 💌
• msg — pointer to the message buffer, i.e. where the actual tea lives 🍵
• len — the message length, how much of that tea we're actually sending 📏

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🦋 DESCRIPTION 🦋

so what does it do? straightforward, bestie: it sends a message to the PF, and if that flops, it prints the status. that's it. no cap. 💀

like, it's giving "reliable friend who tells you when the text didn't deliver." the send happens, and the failure status gets printed so you actually know something went wrong instead of just vibing in the dark 🙈✨

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💜 SEE ALSO 💜

okay this list is long, like genuinely a whole friend group, so buckle up 🧚

the kernel file lives at ./drivers/net/ethernet/intel/iavf/iavf_virtchnl.c and here's everyone else you can go hang out with:

iavf_send_api_ver(9), iavf_poll_virtchnl_msg(9), iavf_verify_api_ver(9), iavf_send_vf_config_msg(9), iavf_send_vf_ptp_caps_msg(9), iavf_validate_num_queues(9), iavf_get_vf_config(9), iavf_configure_queues(9), iavf_enable_queues(9), iavf_disable_queues(9), iavf_map_queues(9), iavf_set_mac_addr_type(9), iavf_add_ether_addrs(9), iavf_del_ether_addrs(9), iavf_mac_add_ok(9), iavf_mac_add_reject(9), iavf_vlan_add_reject(9), iavf_add_vlans(9), iavf_del_vlans(9), iavf_set_promiscuous(9), iavf_request_stats(9), iavf_get_rss_hashcfg(9), iavf_set_rss_hashcfg(9), iavf_set_rss_key(9), iavf_set_rss_lut(9), iavf_set_rss_hfunc(9), iavf_enable_vlan_stripping(9), iavf_disable_vlan_stripping(9), iavf_tpid_to_vc_ethertype(9), iavf_set_vc_offload_ethertype(9), iavf_clear_offload_v2_aq_required(9), iavf_send_vlan_offload_v2(9), iavf_enable_vlan_stripping_v2(9), iavf_disable_vlan_stripping_v2(9), iavf_enable_vlan_insertion_v2(9), iavf_disable_vlan_insertion_v2(9), iavf_virtchnl_send_ptp_cmd(9), iavf_print_link_message(9), iavf_get_vpe_link_status(9), iavf_set_adapter_link_speed_from_vpe(9), iavf_get_qos_caps(9), iavf_set_quanta_size(9), iavf_cfg_queues_quanta_size(9), iavf_cfg_queues_bw(9), iavf_enable_channels(9), iavf_disable_channels(9), iavf_print_cloud_filter(9), iavf_add_cloud_filter(9), iavf_del_cloud_filter(9), iavf_add_fdir_filter(9), iavf_del_fdir_filter(9), iavf_add_adv_rss_cfg(9), iavf_del_adv_rss_cfg(9), iavf_request_reset(9), iavf_netdev_features_vlan_strip_set(9), iavf_activate_fdir_filters(9), iavf_virtchnl_ptp_get_time(9), iavf_virtchnl_completion(9), iavf_poll_virtchnl_response(9)

like, 60-ish cross-references, the iavf driver really said "everyone's invited to the party" 🎉💖

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lowkey reminder: every one of those refs is (9) — kernel API section — don't go looking in section 1 or 8, that's a different universe 😭

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and that's the whole page, bestie!! short, sweet, sends a message and prints if it fails 💫

sign-off szn 🎀: this little cutie comes from ./drivers/net/ethernet/intel/iavf, dated October 2026 — mwah, periodt 💋✨