STRUCT GRO_NODE(9)

💅 struct gro_node(9) 💅

Okay bestie, welcome to the Kernel API Manual ✨ This page is literally all about struct gro_node, and it’s giving main-character energy for Generic Receive Offload. No cap.

🌸 NAME 🌸

struct gro_node — the structure to support Generic Receive Offload. Periodt. 💖

✨ SYNOPSIS ✨

Here’s the whole struct, bestie — don’t blink:

struct gro_node {
    unsigned long           bitmask;
    struct gro_list         hash[GRO_HASH_BUCKETS];
    struct list_head        rx_list;
    u32 rx_count;
    u32 cached_napi_id;
};

🎀 Members 🎀

• bitmask — the bitmask that indicates which buckets in hash are used. Slay. 🫶
• hash — the hashtable of pending aggregated skbs, separated by flows. It’s giving organized-by-vibe. 🦋
• rx_list — the list of pending GRO_NORMAL skbs. Iconic list behavior. 🌸
• rx_count — cached current length of rx_list. Literally keeping count. 🔥
• cached_napi_id — napi_struct::napi_id cached for hotpath, 0 for standalone. Very demure, very cached. 💅

🌈 SEE ALSO 🌈

Kernel file ./include/linux/netdevice.h is the source home, iykyk. And here’s the whole linked-up crew, every single one:

• 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_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). 👑

Okay bye bestie 💜 This page came from source/version ./include/linux, dated October 2026, and it’s literally struct gro_node(9). Mwah 💋