Lines Matching refs:napi
1002 struct napi_struct *napi; in dev_get_by_napi_id() local
1009 napi = napi_by_id(napi_id); in dev_get_by_napi_id()
1011 return napi ? napi->dev : NULL; in dev_get_by_napi_id()
4273 struct napi_struct *napi) in ____napi_schedule() argument
4275 list_add_tail(&napi->poll_list, &sd->poll_list); in ____napi_schedule()
5764 static void gro_normal_list(struct napi_struct *napi) in gro_normal_list() argument
5766 if (!napi->rx_count) in gro_normal_list()
5768 netif_receive_skb_list_internal(&napi->rx_list); in gro_normal_list()
5769 INIT_LIST_HEAD(&napi->rx_list); in gro_normal_list()
5770 napi->rx_count = 0; in gro_normal_list()
5776 static void gro_normal_one(struct napi_struct *napi, struct sk_buff *skb, int segs) in gro_normal_one() argument
5778 list_add_tail(&skb->list, &napi->rx_list); in gro_normal_one()
5779 napi->rx_count += segs; in gro_normal_one()
5780 if (napi->rx_count >= gro_normal_batch) in gro_normal_one()
5781 gro_normal_list(napi); in gro_normal_one()
5786 static int napi_gro_complete(struct napi_struct *napi, struct sk_buff *skb) in napi_gro_complete() argument
5819 gro_normal_one(napi, skb, NAPI_GRO_CB(skb)->count); in napi_gro_complete()
5823 static void __napi_gro_flush_chain(struct napi_struct *napi, u32 index, in __napi_gro_flush_chain() argument
5826 struct list_head *head = &napi->gro_hash[index].list; in __napi_gro_flush_chain()
5833 napi_gro_complete(napi, skb); in __napi_gro_flush_chain()
5834 napi->gro_hash[index].count--; in __napi_gro_flush_chain()
5837 if (!napi->gro_hash[index].count) in __napi_gro_flush_chain()
5838 __clear_bit(index, &napi->gro_bitmask); in __napi_gro_flush_chain()
5845 void napi_gro_flush(struct napi_struct *napi, bool flush_old) in napi_gro_flush() argument
5847 unsigned long bitmask = napi->gro_bitmask; in napi_gro_flush()
5853 __napi_gro_flush_chain(napi, base, flush_old); in napi_gro_flush()
5858 static struct list_head *gro_list_prepare(struct napi_struct *napi, in gro_list_prepare() argument
5866 head = &napi->gro_hash[hash & (GRO_HASH_BUCKETS - 1)].list; in gro_list_prepare()
5949 static void gro_flush_oldest(struct napi_struct *napi, struct list_head *head) in gro_flush_oldest() argument
5965 napi_gro_complete(napi, oldest); in gro_flush_oldest()
5972 static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb) in dev_gro_receive() argument
5987 gro_head = gro_list_prepare(napi, skb); in dev_gro_receive()
6041 napi_gro_complete(napi, pp); in dev_gro_receive()
6042 napi->gro_hash[hash].count--; in dev_gro_receive()
6051 if (unlikely(napi->gro_hash[hash].count >= MAX_GRO_SKBS)) { in dev_gro_receive()
6052 gro_flush_oldest(napi, gro_head); in dev_gro_receive()
6054 napi->gro_hash[hash].count++; in dev_gro_receive()
6068 if (napi->gro_hash[hash].count) { in dev_gro_receive()
6069 if (!test_bit(hash, &napi->gro_bitmask)) in dev_gro_receive()
6070 __set_bit(hash, &napi->gro_bitmask); in dev_gro_receive()
6071 } else if (test_bit(hash, &napi->gro_bitmask)) { in dev_gro_receive()
6072 __clear_bit(hash, &napi->gro_bitmask); in dev_gro_receive()
6117 static gro_result_t napi_skb_finish(struct napi_struct *napi, in napi_skb_finish() argument
6123 gro_normal_one(napi, skb, 1); in napi_skb_finish()
6146 gro_result_t napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb) in napi_gro_receive() argument
6150 skb_mark_napi_id(skb, napi); in napi_gro_receive()
6155 ret = napi_skb_finish(napi, skb, dev_gro_receive(napi, skb)); in napi_gro_receive()
6162 static void napi_reuse_skb(struct napi_struct *napi, struct sk_buff *skb) in napi_reuse_skb() argument
6172 skb->dev = napi->dev; in napi_reuse_skb()
6184 napi->skb = skb; in napi_reuse_skb()
6187 struct sk_buff *napi_get_frags(struct napi_struct *napi) in napi_get_frags() argument
6189 struct sk_buff *skb = napi->skb; in napi_get_frags()
6192 skb = napi_alloc_skb(napi, GRO_MAX_HEAD); in napi_get_frags()
6194 napi->skb = skb; in napi_get_frags()
6195 skb_mark_napi_id(skb, napi); in napi_get_frags()
6202 static gro_result_t napi_frags_finish(struct napi_struct *napi, in napi_frags_finish() argument
6212 gro_normal_one(napi, skb, 1); in napi_frags_finish()
6216 napi_reuse_skb(napi, skb); in napi_frags_finish()
6223 napi_reuse_skb(napi, skb); in napi_frags_finish()
6238 static struct sk_buff *napi_frags_skb(struct napi_struct *napi) in napi_frags_skb() argument
6240 struct sk_buff *skb = napi->skb; in napi_frags_skb()
6244 napi->skb = NULL; in napi_frags_skb()
6253 __func__, napi->dev->name); in napi_frags_skb()
6254 napi_reuse_skb(napi, skb); in napi_frags_skb()
6275 gro_result_t napi_gro_frags(struct napi_struct *napi) in napi_gro_frags() argument
6278 struct sk_buff *skb = napi_frags_skb(napi); in napi_gro_frags()
6285 ret = napi_frags_finish(napi, skb, dev_gro_receive(napi, skb)); in napi_gro_frags()
6361 static int process_backlog(struct napi_struct *napi, int quota) in process_backlog() argument
6363 struct softnet_data *sd = container_of(napi, struct softnet_data, backlog); in process_backlog()
6375 napi->weight = READ_ONCE(dev_rx_weight); in process_backlog()
6400 napi->state = 0; in process_backlog()
6556 struct napi_struct *napi; in napi_by_id() local
6558 hlist_for_each_entry_rcu(napi, &napi_hash[hash], napi_hash_node) in napi_by_id()
6559 if (napi->napi_id == napi_id) in napi_by_id()
6560 return napi; in napi_by_id()
6569 static void busy_poll_stop(struct napi_struct *napi, void *have_poll_lock) in busy_poll_stop() argument
6582 clear_bit(NAPI_STATE_MISSED, &napi->state); in busy_poll_stop()
6583 clear_bit(NAPI_STATE_IN_BUSY_POLL, &napi->state); in busy_poll_stop()
6590 rc = napi->poll(napi, BUSY_POLL_BUDGET); in busy_poll_stop()
6595 trace_napi_poll(napi, rc, BUSY_POLL_BUDGET); in busy_poll_stop()
6601 gro_normal_list(napi); in busy_poll_stop()
6602 __napi_schedule(napi); in busy_poll_stop()
6612 int (*napi_poll)(struct napi_struct *napi, int budget); in napi_busy_loop()
6614 struct napi_struct *napi; in napi_busy_loop() local
6621 napi = napi_by_id(napi_id); in napi_busy_loop()
6622 if (!napi) in napi_busy_loop()
6631 unsigned long val = READ_ONCE(napi->state); in napi_busy_loop()
6639 if (cmpxchg(&napi->state, val, in napi_busy_loop()
6643 have_poll_lock = netpoll_poll_lock(napi); in napi_busy_loop()
6644 napi_poll = napi->poll; in napi_busy_loop()
6646 work = napi_poll(napi, BUSY_POLL_BUDGET); in napi_busy_loop()
6647 trace_napi_poll(napi, work, BUSY_POLL_BUDGET); in napi_busy_loop()
6648 gro_normal_list(napi); in napi_busy_loop()
6651 __NET_ADD_STATS(dev_net(napi->dev), in napi_busy_loop()
6660 busy_poll_stop(napi, have_poll_lock); in napi_busy_loop()
6671 busy_poll_stop(napi, have_poll_lock); in napi_busy_loop()
6680 static void napi_hash_add(struct napi_struct *napi) in napi_hash_add() argument
6682 if (test_bit(NAPI_STATE_NO_BUSY_POLL, &napi->state)) in napi_hash_add()
6692 napi->napi_id = napi_gen_id; in napi_hash_add()
6694 hlist_add_head_rcu(&napi->napi_hash_node, in napi_hash_add()
6695 &napi_hash[napi->napi_id % HASH_SIZE(napi_hash)]); in napi_hash_add()
6703 static void napi_hash_del(struct napi_struct *napi) in napi_hash_del() argument
6707 hlist_del_init_rcu(&napi->napi_hash_node); in napi_hash_del()
6714 struct napi_struct *napi; in napi_watchdog() local
6716 napi = container_of(timer, struct napi_struct, timer); in napi_watchdog()
6721 if (!napi_disable_pending(napi) && in napi_watchdog()
6722 !test_and_set_bit(NAPI_STATE_SCHED, &napi->state)) in napi_watchdog()
6723 __napi_schedule_irqoff(napi); in napi_watchdog()
6728 static void init_gro_hash(struct napi_struct *napi) in init_gro_hash() argument
6733 INIT_LIST_HEAD(&napi->gro_hash[i].list); in init_gro_hash()
6734 napi->gro_hash[i].count = 0; in init_gro_hash()
6736 napi->gro_bitmask = 0; in init_gro_hash()
6739 void netif_napi_add(struct net_device *dev, struct napi_struct *napi, in netif_napi_add() argument
6742 if (WARN_ON(test_and_set_bit(NAPI_STATE_LISTED, &napi->state))) in netif_napi_add()
6745 INIT_LIST_HEAD(&napi->poll_list); in netif_napi_add()
6746 INIT_HLIST_NODE(&napi->napi_hash_node); in netif_napi_add()
6747 hrtimer_init(&napi->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_PINNED); in netif_napi_add()
6748 napi->timer.function = napi_watchdog; in netif_napi_add()
6749 init_gro_hash(napi); in netif_napi_add()
6750 napi->skb = NULL; in netif_napi_add()
6751 INIT_LIST_HEAD(&napi->rx_list); in netif_napi_add()
6752 napi->rx_count = 0; in netif_napi_add()
6753 napi->poll = poll; in netif_napi_add()
6757 napi->weight = weight; in netif_napi_add()
6758 napi->dev = dev; in netif_napi_add()
6760 napi->poll_owner = -1; in netif_napi_add()
6762 set_bit(NAPI_STATE_SCHED, &napi->state); in netif_napi_add()
6763 set_bit(NAPI_STATE_NPSVC, &napi->state); in netif_napi_add()
6764 list_add_rcu(&napi->dev_list, &dev->napi_list); in netif_napi_add()
6765 napi_hash_add(napi); in netif_napi_add()
6785 static void flush_gro_hash(struct napi_struct *napi) in flush_gro_hash() argument
6792 list_for_each_entry_safe(skb, n, &napi->gro_hash[i].list, list) in flush_gro_hash()
6794 napi->gro_hash[i].count = 0; in flush_gro_hash()
6799 void __netif_napi_del(struct napi_struct *napi) in __netif_napi_del() argument
6801 if (!test_and_clear_bit(NAPI_STATE_LISTED, &napi->state)) in __netif_napi_del()
6804 napi_hash_del(napi); in __netif_napi_del()
6805 list_del_rcu(&napi->dev_list); in __netif_napi_del()
6806 napi_free_frags(napi); in __netif_napi_del()
6808 flush_gro_hash(napi); in __netif_napi_del()
6809 napi->gro_bitmask = 0; in __netif_napi_del()
10947 struct napi_struct *napi = list_first_entry(&oldsd->poll_list, in dev_cpu_dead() local
10951 list_del_init(&napi->poll_list); in dev_cpu_dead()
10952 if (napi->poll == process_backlog) in dev_cpu_dead()
10953 napi->state = 0; in dev_cpu_dead()
10955 ____napi_schedule(sd, napi); in dev_cpu_dead()