netif_napi_add_tx(9)

✨ NAME ✨

okay so this is netif_napi_add_tx(9), straight outta the Kernel API Manual, and she’s here to initialize a NAPI context that’s gonna be used for Tx only. That’s the whole name, no cap. 💅

🎀 SYNOPSIS 🎀

Bestie, here’s the signature exactly as it is, don’t come for me:

void netif_napi_add_tx (struct net_device *dev , struct napi_struct *napi , int (*poll)(struct napi_struct *, int) );

🫶 ARGUMENTS 🫶

• dev — the network device. Your little network icon, basically. 🌐
• napi — the NAPI context. The main character of this setup. 👑
• poll — the polling function. The callback that does the actual polling. ⭐

💅 DESCRIPTION 💅

okay so here’s the tea: this is a variant of netif_napi_add, and it should be used from drivers that are using NAPI to exclusively poll a TX queue. 🦋

The whole point is that it keeps us from adding it into napi_hash[], so we’re not out here polluting that hash table. Clean, no mess, iconic behavior. ✨

🔥 SEE ALSO 🔥

The whole friend group, literally all of them:

• Kernel file ./include/linux/netdevice.h 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_del(9)
• netif_napi_del(9)
• netif_start_queue(9)
• netif_wake_queue(9)
• netif_stop_queue(9)
• netif_queue_stopped(9)
• netdev_queue_set_dql_min_limit(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)

muah 💋 — source: ./include/linux, date: October 2026. stay slay, bye 🫶