idpf_add_empty_queue_stats(9)

🌸 NAME 🌸

okay so bestie, you're looking at the manual page for idpf_add_empty_queue_stats(9) from the Kernel API Manual. Its whole thing is: idpf_add_empty_queue_stats — Add stats for a non-existent queue. Like, it's the placeholder-stats girlie. ✨

✨ SYNOPSIS ✨

void idpf_add_empty_queue_stats (u64 **data , u16 qtype );

🎀 ARGUMENTS 🎀

• data — pointer to data buffer. This is the buffer that gets the empty placeholder stats, bestie. 🫶
• qtype — type of data queue. It tells you what kind of data queue we're talking about. 💅

🦋 DESCRIPTION 🦋

okay so the tea ☕: we must report a constant length of stats back to userspace regardless of how many queues are actually in use. Why? Because stats collection happens over three separate ioctls, and there's literally no way to notify userspace that the size changed between those calls. So the length has to stay constant, periodt.

That's where this function comes in: it adds empty to data to the stats, since we don't have a real queue to refer to for this stats slot. It's giving placeholder main-character energy 🎀 — no real queue, but the stats slot still needs a value so the stats array stays the same shape.

💖 SEE ALSO 💖

• Kernel file: ./drivers/net/ethernet/intel/idpf/idpf_ethtool.c
• idpf_get_rx_ring_count(9)
• idpf_get_rxnfc(9)
• idpf_add_flow_steer(9)
• idpf_del_flow_steer(9)
• idpf_get_rxfh_key_size(9)
• idpf_get_rxfh_indir_size(9)
• idpf_get_rxfh(9)
• idpf_set_rxfh(9)
• idpf_get_channels(9)
• idpf_set_channels(9)
• idpf_get_ringparam(9)
• idpf_set_ringparam(9)
• struct idpf_stats(9)
• __idpf_add_qstat_strings(9)
• idpf_add_qstat_strings(9)
• idpf_add_stat_strings(9)
• idpf_get_stat_strings(9)
• idpf_get_strings(9)
• idpf_get_sset_count(9)
• idpf_add_one_ethtool_stat(9)
• idpf_add_queue_stats(9)
• idpf_add_port_stats(9)
• idpf_collect_queue_stats(9)
• idpf_get_ethtool_stats(9)
• idpf_find_rxq_vec(9)
• idpf_find_txq_vec(9)
• __idpf_get_q_coalesce(9)
• idpf_get_q_coalesce(9)
• idpf_get_coalesce(9)
• idpf_get_per_q_coalesce(9)
• __idpf_set_q_coalesce(9)
• idpf_set_q_coalesce(9)
• idpf_set_coalesce(9)
• idpf_set_per_q_coalesce(9)
• idpf_get_msglevel(9)
• idpf_set_msglevel(9)
• idpf_get_link_ksettings(9)
• idpf_get_timestamp_filters(9)
• idpf_get_ts_info(9)
• idpf_get_ts_stats(9)
• idpf_set_ethtool_ops(9)

mwah 💋 bestie — that's the page. It's from ./drivers/net/ethernet/intel/idpf, dated October 2026. Now go collect those stats and be iconic. 💅✨