Lines Matching refs:napi
1009 struct napi_struct *napi; in dev_get_by_napi_id() local
1016 napi = napi_by_id(napi_id); in dev_get_by_napi_id()
1018 return napi ? napi->dev : NULL; in dev_get_by_napi_id()
4278 struct napi_struct *napi) in ____napi_schedule() argument
4280 list_add_tail(&napi->poll_list, &sd->poll_list); in ____napi_schedule()
5769 static void gro_normal_list(struct napi_struct *napi) in gro_normal_list() argument
5771 if (!napi->rx_count) in gro_normal_list()
5773 netif_receive_skb_list_internal(&napi->rx_list); in gro_normal_list()
5774 INIT_LIST_HEAD(&napi->rx_list); in gro_normal_list()
5775 napi->rx_count = 0; in gro_normal_list()
5781 static void gro_normal_one(struct napi_struct *napi, struct sk_buff *skb, int segs) in gro_normal_one() argument
5783 list_add_tail(&skb->list, &napi->rx_list); in gro_normal_one()
5784 napi->rx_count += segs; in gro_normal_one()
5785 if (napi->rx_count >= gro_normal_batch) in gro_normal_one()
5786 gro_normal_list(napi); in gro_normal_one()
5791 static int napi_gro_complete(struct napi_struct *napi, struct sk_buff *skb) in napi_gro_complete() argument
5824 gro_normal_one(napi, skb, NAPI_GRO_CB(skb)->count); in napi_gro_complete()
5828 static void __napi_gro_flush_chain(struct napi_struct *napi, u32 index, in __napi_gro_flush_chain() argument
5831 struct list_head *head = &napi->gro_hash[index].list; in __napi_gro_flush_chain()
5838 napi_gro_complete(napi, skb); in __napi_gro_flush_chain()
5839 napi->gro_hash[index].count--; in __napi_gro_flush_chain()
5842 if (!napi->gro_hash[index].count) in __napi_gro_flush_chain()
5843 __clear_bit(index, &napi->gro_bitmask); in __napi_gro_flush_chain()
5850 void napi_gro_flush(struct napi_struct *napi, bool flush_old) in napi_gro_flush() argument
5852 unsigned long bitmask = napi->gro_bitmask; in napi_gro_flush()
5858 __napi_gro_flush_chain(napi, base, flush_old); in napi_gro_flush()
5863 static struct list_head *gro_list_prepare(struct napi_struct *napi, in gro_list_prepare() argument
5871 head = &napi->gro_hash[hash & (GRO_HASH_BUCKETS - 1)].list; in gro_list_prepare()
5954 static void gro_flush_oldest(struct napi_struct *napi, struct list_head *head) in gro_flush_oldest() argument
5970 napi_gro_complete(napi, oldest); in gro_flush_oldest()
5977 static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb) in dev_gro_receive() argument
5992 gro_head = gro_list_prepare(napi, skb); in dev_gro_receive()
6046 napi_gro_complete(napi, pp); in dev_gro_receive()
6047 napi->gro_hash[hash].count--; in dev_gro_receive()
6056 if (unlikely(napi->gro_hash[hash].count >= MAX_GRO_SKBS)) { in dev_gro_receive()
6057 gro_flush_oldest(napi, gro_head); in dev_gro_receive()
6059 napi->gro_hash[hash].count++; in dev_gro_receive()
6073 if (napi->gro_hash[hash].count) { in dev_gro_receive()
6074 if (!test_bit(hash, &napi->gro_bitmask)) in dev_gro_receive()
6075 __set_bit(hash, &napi->gro_bitmask); in dev_gro_receive()
6076 } else if (test_bit(hash, &napi->gro_bitmask)) { in dev_gro_receive()
6077 __clear_bit(hash, &napi->gro_bitmask); in dev_gro_receive()
6122 static gro_result_t napi_skb_finish(struct napi_struct *napi, in napi_skb_finish() argument
6128 gro_normal_one(napi, skb, 1); in napi_skb_finish()
6151 gro_result_t napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb) in napi_gro_receive() argument
6155 skb_mark_napi_id(skb, napi); in napi_gro_receive()
6160 ret = napi_skb_finish(napi, skb, dev_gro_receive(napi, skb)); in napi_gro_receive()
6167 static void napi_reuse_skb(struct napi_struct *napi, struct sk_buff *skb) in napi_reuse_skb() argument
6177 skb->dev = napi->dev; in napi_reuse_skb()
6189 napi->skb = skb; in napi_reuse_skb()
6192 struct sk_buff *napi_get_frags(struct napi_struct *napi) in napi_get_frags() argument
6194 struct sk_buff *skb = napi->skb; in napi_get_frags()
6197 skb = napi_alloc_skb(napi, GRO_MAX_HEAD); in napi_get_frags()
6199 napi->skb = skb; in napi_get_frags()
6200 skb_mark_napi_id(skb, napi); in napi_get_frags()
6207 static gro_result_t napi_frags_finish(struct napi_struct *napi, in napi_frags_finish() argument
6217 gro_normal_one(napi, skb, 1); in napi_frags_finish()
6221 napi_reuse_skb(napi, skb); in napi_frags_finish()
6228 napi_reuse_skb(napi, skb); in napi_frags_finish()
6243 static struct sk_buff *napi_frags_skb(struct napi_struct *napi) in napi_frags_skb() argument
6245 struct sk_buff *skb = napi->skb; in napi_frags_skb()
6249 napi->skb = NULL; in napi_frags_skb()
6258 __func__, napi->dev->name); in napi_frags_skb()
6259 napi_reuse_skb(napi, skb); in napi_frags_skb()
6280 gro_result_t napi_gro_frags(struct napi_struct *napi) in napi_gro_frags() argument
6283 struct sk_buff *skb = napi_frags_skb(napi); in napi_gro_frags()
6290 ret = napi_frags_finish(napi, skb, dev_gro_receive(napi, skb)); in napi_gro_frags()
6366 static int process_backlog(struct napi_struct *napi, int quota) in process_backlog() argument
6368 struct softnet_data *sd = container_of(napi, struct softnet_data, backlog); in process_backlog()
6380 napi->weight = READ_ONCE(dev_rx_weight); in process_backlog()
6405 napi->state = 0; in process_backlog()
6561 struct napi_struct *napi; in napi_by_id() local
6563 hlist_for_each_entry_rcu(napi, &napi_hash[hash], napi_hash_node) in napi_by_id()
6564 if (napi->napi_id == napi_id) in napi_by_id()
6565 return napi; in napi_by_id()
6574 static void busy_poll_stop(struct napi_struct *napi, void *have_poll_lock) in busy_poll_stop() argument
6587 clear_bit(NAPI_STATE_MISSED, &napi->state); in busy_poll_stop()
6588 clear_bit(NAPI_STATE_IN_BUSY_POLL, &napi->state); in busy_poll_stop()
6595 rc = napi->poll(napi, BUSY_POLL_BUDGET); in busy_poll_stop()
6600 trace_napi_poll(napi, rc, BUSY_POLL_BUDGET); in busy_poll_stop()
6606 gro_normal_list(napi); in busy_poll_stop()
6607 __napi_schedule(napi); in busy_poll_stop()
6617 int (*napi_poll)(struct napi_struct *napi, int budget); in napi_busy_loop()
6619 struct napi_struct *napi; in napi_busy_loop() local
6626 napi = napi_by_id(napi_id); in napi_busy_loop()
6627 if (!napi) in napi_busy_loop()
6636 unsigned long val = READ_ONCE(napi->state); in napi_busy_loop()
6644 if (cmpxchg(&napi->state, val, in napi_busy_loop()
6648 have_poll_lock = netpoll_poll_lock(napi); in napi_busy_loop()
6649 napi_poll = napi->poll; in napi_busy_loop()
6651 work = napi_poll(napi, BUSY_POLL_BUDGET); in napi_busy_loop()
6652 trace_napi_poll(napi, work, BUSY_POLL_BUDGET); in napi_busy_loop()
6653 gro_normal_list(napi); in napi_busy_loop()
6656 __NET_ADD_STATS(dev_net(napi->dev), in napi_busy_loop()
6665 busy_poll_stop(napi, have_poll_lock); in napi_busy_loop()
6676 busy_poll_stop(napi, have_poll_lock); in napi_busy_loop()
6685 static void napi_hash_add(struct napi_struct *napi) in napi_hash_add() argument
6687 if (test_bit(NAPI_STATE_NO_BUSY_POLL, &napi->state)) in napi_hash_add()
6697 napi->napi_id = napi_gen_id; in napi_hash_add()
6699 hlist_add_head_rcu(&napi->napi_hash_node, in napi_hash_add()
6700 &napi_hash[napi->napi_id % HASH_SIZE(napi_hash)]); in napi_hash_add()
6708 static void napi_hash_del(struct napi_struct *napi) in napi_hash_del() argument
6712 hlist_del_init_rcu(&napi->napi_hash_node); in napi_hash_del()
6719 struct napi_struct *napi; in napi_watchdog() local
6721 napi = container_of(timer, struct napi_struct, timer); in napi_watchdog()
6726 if (!napi_disable_pending(napi) && in napi_watchdog()
6727 !test_and_set_bit(NAPI_STATE_SCHED, &napi->state)) in napi_watchdog()
6728 __napi_schedule_irqoff(napi); in napi_watchdog()
6733 static void init_gro_hash(struct napi_struct *napi) in init_gro_hash() argument
6738 INIT_LIST_HEAD(&napi->gro_hash[i].list); in init_gro_hash()
6739 napi->gro_hash[i].count = 0; in init_gro_hash()
6741 napi->gro_bitmask = 0; in init_gro_hash()
6744 void netif_napi_add(struct net_device *dev, struct napi_struct *napi, in netif_napi_add() argument
6747 if (WARN_ON(test_and_set_bit(NAPI_STATE_LISTED, &napi->state))) in netif_napi_add()
6750 INIT_LIST_HEAD(&napi->poll_list); in netif_napi_add()
6751 INIT_HLIST_NODE(&napi->napi_hash_node); in netif_napi_add()
6752 hrtimer_init(&napi->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_PINNED); in netif_napi_add()
6753 napi->timer.function = napi_watchdog; in netif_napi_add()
6754 init_gro_hash(napi); in netif_napi_add()
6755 napi->skb = NULL; in netif_napi_add()
6756 INIT_LIST_HEAD(&napi->rx_list); in netif_napi_add()
6757 napi->rx_count = 0; in netif_napi_add()
6758 napi->poll = poll; in netif_napi_add()
6762 napi->weight = weight; in netif_napi_add()
6763 napi->dev = dev; in netif_napi_add()
6765 napi->poll_owner = -1; in netif_napi_add()
6767 set_bit(NAPI_STATE_SCHED, &napi->state); in netif_napi_add()
6768 set_bit(NAPI_STATE_NPSVC, &napi->state); in netif_napi_add()
6769 list_add_rcu(&napi->dev_list, &dev->napi_list); in netif_napi_add()
6770 napi_hash_add(napi); in netif_napi_add()
6790 static void flush_gro_hash(struct napi_struct *napi) in flush_gro_hash() argument
6797 list_for_each_entry_safe(skb, n, &napi->gro_hash[i].list, list) in flush_gro_hash()
6799 napi->gro_hash[i].count = 0; in flush_gro_hash()
6804 void __netif_napi_del(struct napi_struct *napi) in __netif_napi_del() argument
6806 if (!test_and_clear_bit(NAPI_STATE_LISTED, &napi->state)) in __netif_napi_del()
6809 napi_hash_del(napi); in __netif_napi_del()
6810 list_del_rcu(&napi->dev_list); in __netif_napi_del()
6811 napi_free_frags(napi); in __netif_napi_del()
6813 flush_gro_hash(napi); in __netif_napi_del()
6814 napi->gro_bitmask = 0; in __netif_napi_del()
10960 struct napi_struct *napi = list_first_entry(&oldsd->poll_list, in dev_cpu_dead() local
10964 list_del_init(&napi->poll_list); in dev_cpu_dead()
10965 if (napi->poll == process_backlog) in dev_cpu_dead()
10966 napi->state = 0; in dev_cpu_dead()
10968 ____napi_schedule(sd, napi); in dev_cpu_dead()