netdev_queue...ql_min_limit(9)

💅 netdev_queue_set_dql_min_limit — Kernel API Manual

ok so bestie, welcome to the netdev_queue...ql_min_limit(9) page from the Kernel API Manual ✨ this one is short and sweet, we love a low-commitment manpage 🫶

🌸 NAME 🌸

netdev_queue_set_dql_min_limit — set dql minimum limit 💫

✨ SYNOPSIS ✨

void netdev_queue_set_dql_min_limit (struct netdev_queue *dev_queue ,
unsigned int min_limit );

literally that's the whole signature, no cap 😌

🎀 ARGUMENTS 🎀

• dev_queue — pointer to transmit queue 👑 this is the queue you're blessing.
• min_limit — dql minimum limit 🍓 the threshold value, that's it.

🦋 DESCRIPTION 🦋

ok so what this does: it forces xmit_more to return true until the minimum threshold defined by min_limit is reached — or until the tx queue is empty, whichever comes first 🧚✨

⚠️ Warning: to be use with care, misuse will impact the latency. 💀 for real, this is not a "just try it and see" situation — if you fumble it, latency gets wrecked.

🌈 SEE ALSO 🌈

Kernel file ./include/linux/netdevice.h — and honestly the whole friend group shows up here:

• struct gro_node(9), napi_is_scheduled(9), napi_schedule(9), napi_schedule_irqoff(9), napi_complete_done(9), napi_synchronize(9), napi_if_scheduled_mark_missed(9)
• enum netdev_priv_flags(9), struct net_device(9), netdev_priv(9), netdev_from_priv(9)
• netif_napi_add(9), netif_napi_add_config(9), netif_napi_add_tx(9), __netif_napi_del(9), netif_napi_del(9)
• netif_start_queue(9), netif_wake_queue(9), netif_stop_queue(9), netif_queue_stopped(9)
• netdev_txq_bql_enqueue_prefetchw(9), netdev_txq_bql_complete_prefetchw(9)
• netdev_tx_sent_queue(9), netdev_sent_queue(9), netdev_tx_completed_queue(9), netdev_completed_queue(9)
• netdev_tx_reset_subqueue(9), netdev_reset_queue(9), netdev_cap_txqueue(9)
• netif_running(9), netif_start_subqueue(9), netif_stop_subqueue(9), __netif_subqueue_stopped(9), netif_subqueue_stopped(9), netif_wake_subqueue(9)
• netif_attr_test_mask(9), netif_attr_test_online(9), netif_attrmask_next(9), netif_attrmask_next_and(9)
• netif_is_multiqueue(9), dev_hold(9), dev_put(9), linkwatch_sync_dev(9)
• netif_carrier_ok(9), netif_dormant_on(9), netif_dormant_off(9), netif_dormant(9)
• netif_testing_on(9), netif_testing_off(9), netif_testing(9), netif_oper_up(9)
• netif_device_present(9), netif_tx_lock(9)
• __dev_uc_sync(9), __dev_uc_unsync(9), __dev_mc_sync(9), __dev_mc_unsync(9)

and that's the whole page bestie 💖 sign-off time: this one lives in ./include/linux and the date on it is October 2026 🌸 go forth and set your dql minimum limit responsibly, mwah 💅✨