diff --git a/drivers/net/wireless/iwlwifi/dvm/dev.h b/drivers/net/wireless/iwlwifi/dvm/dev.h index 3811878ab9cd..074977ede343 100644 --- a/drivers/net/wireless/iwlwifi/dvm/dev.h +++ b/drivers/net/wireless/iwlwifi/dvm/dev.h @@ -669,6 +669,8 @@ struct iwl_priv { /* ieee device used by generic ieee processing code */ struct ieee80211_hw *hw; + struct napi_struct *napi; + struct list_head calib_results; struct workqueue_struct *workqueue; diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c index 234e30f498b2..644819563cf0 100644 --- a/drivers/net/wireless/iwlwifi/dvm/main.c +++ b/drivers/net/wireless/iwlwifi/dvm/main.c @@ -2037,7 +2037,8 @@ static void iwl_napi_add(struct iwl_op_mode *op_mode, { struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); - ieee80211_napi_add(priv->hw, napi, napi_dev, poll, weight); + netif_napi_add(napi_dev, napi, poll, weight); + priv->napi = napi; } static const struct iwl_op_mode_ops iwl_dvm_ops = { diff --git a/drivers/net/wireless/iwlwifi/dvm/rx.c b/drivers/net/wireless/iwlwifi/dvm/rx.c index debec963c610..5a91f5d6b1dc 100644 --- a/drivers/net/wireless/iwlwifi/dvm/rx.c +++ b/drivers/net/wireless/iwlwifi/dvm/rx.c @@ -786,7 +786,7 @@ static void iwlagn_pass_packet_to_mac80211(struct iwl_priv *priv, memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats)); - ieee80211_rx(priv->hw, skb); + ieee80211_rx_napi(priv->hw, skb, priv->napi); } static u32 iwlagn_translate_rx_status(struct iwl_priv *priv, u32 decrypt_in) diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h index 2d4bad5fe825..605f57a2c6be 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h @@ -559,6 +559,7 @@ struct iwl_mvm { const struct iwl_cfg *cfg; struct iwl_phy_db *phy_db; struct ieee80211_hw *hw; + struct napi_struct *napi; /* for protecting access to iwl_mvm */ struct mutex mutex; diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c index e4fa50075ffd..3967df63e0f3 100644 --- a/drivers/net/wireless/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/iwlwifi/mvm/ops.c @@ -1316,7 +1316,8 @@ static void iwl_mvm_napi_add(struct iwl_op_mode *op_mode, { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); - ieee80211_napi_add(mvm->hw, napi, napi_dev, poll, weight); + netif_napi_add(napi_dev, napi, poll, weight); + mvm->napi = napi; } static const struct iwl_op_mode_ops iwl_mvm_ops = { diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c index 8f1d93b7a13a..9ff0b4321df3 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rx.c +++ b/drivers/net/wireless/iwlwifi/mvm/rx.c @@ -129,7 +129,7 @@ static void iwl_mvm_pass_packet_to_mac80211(struct iwl_mvm *mvm, fraglen, rxb->truesize); } - ieee80211_rx(mvm->hw, skb); + ieee80211_rx_napi(mvm->hw, skb, mvm->napi); } /* diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 43dbddfa06c0..ff68b8c4ab35 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -3694,20 +3694,28 @@ void ieee80211_free_hw(struct ieee80211_hw *hw); void ieee80211_restart_hw(struct ieee80211_hw *hw); /** - * ieee80211_napi_add - initialize mac80211 NAPI context - * @hw: the hardware to initialize the NAPI context on - * @napi: the NAPI context to initialize - * @napi_dev: dummy NAPI netdevice, here to not waste the space if the - * driver doesn't use NAPI - * @poll: poll function - * @weight: default weight + * ieee80211_rx_napi - receive frame from NAPI context * - * See also netif_napi_add(). + * Use this function to hand received frames to mac80211. The receive + * buffer in @skb must start with an IEEE 802.11 header. In case of a + * paged @skb is used, the driver is recommended to put the ieee80211 + * header of the frame on the linear part of the @skb to avoid memory + * allocation and/or memcpy by the stack. + * + * This function may not be called in IRQ context. Calls to this function + * for a single hardware must be synchronized against each other. Calls to + * this function, ieee80211_rx_ni() and ieee80211_rx_irqsafe() may not be + * mixed for a single hardware. Must not run concurrently with + * ieee80211_tx_status() or ieee80211_tx_status_ni(). + * + * This function must be called with BHs disabled. + * + * @hw: the hardware this frame came in on + * @skb: the buffer to receive, owned by mac80211 after this call + * @napi: the NAPI context */ -void ieee80211_napi_add(struct ieee80211_hw *hw, struct napi_struct *napi, - struct net_device *napi_dev, - int (*poll)(struct napi_struct *, int), - int weight); +void ieee80211_rx_napi(struct ieee80211_hw *hw, struct sk_buff *skb, + struct napi_struct *napi); /** * ieee80211_rx - receive frame @@ -3729,7 +3737,10 @@ void ieee80211_napi_add(struct ieee80211_hw *hw, struct napi_struct *napi, * @hw: the hardware this frame came in on * @skb: the buffer to receive, owned by mac80211 after this call */ -void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb); +static inline void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb) +{ + ieee80211_rx_napi(hw, skb, NULL); +} /** * ieee80211_rx_irqsafe - receive frame diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 361bb3ca335c..7d75f93bac7d 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -202,8 +202,6 @@ enum ieee80211_packet_rx_flags { * @IEEE80211_RX_CMNTR: received on cooked monitor already * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported * to cfg80211_report_obss_beacon(). - * @IEEE80211_RX_REORDER_TIMER: this frame is released by the - * reorder buffer timeout timer, not the normal RX path * * These flags are used across handling multiple interfaces * for a single frame. @@ -211,10 +209,10 @@ enum ieee80211_packet_rx_flags { enum ieee80211_rx_flags { IEEE80211_RX_CMNTR = BIT(0), IEEE80211_RX_BEACON_REPORTED = BIT(1), - IEEE80211_RX_REORDER_TIMER = BIT(2), }; struct ieee80211_rx_data { + struct napi_struct *napi; struct sk_buff *skb; struct ieee80211_local *local; struct ieee80211_sub_if_data *sdata; @@ -1347,8 +1345,6 @@ struct ieee80211_local { struct ieee80211_sub_if_data __rcu *p2p_sdata; - struct napi_struct *napi; - /* virtual monitor interface */ struct ieee80211_sub_if_data __rcu *monitor_sdata; struct cfg80211_chan_def monitor_chandef; diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 3c63468b4dfb..dba0a86dee18 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -1132,18 +1132,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) } EXPORT_SYMBOL(ieee80211_register_hw); -void ieee80211_napi_add(struct ieee80211_hw *hw, struct napi_struct *napi, - struct net_device *napi_dev, - int (*poll)(struct napi_struct *, int), - int weight) -{ - struct ieee80211_local *local = hw_to_local(hw); - - netif_napi_add(napi_dev, napi, poll, weight); - local->napi = napi; -} -EXPORT_SYMBOL_GPL(ieee80211_napi_add); - void ieee80211_unregister_hw(struct ieee80211_hw *hw) { struct ieee80211_local *local = hw_to_local(hw); diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index dd6bb2a54d45..817bf22dad5a 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -2148,9 +2148,8 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx) /* deliver to local stack */ skb->protocol = eth_type_trans(skb, dev); memset(skb->cb, 0, sizeof(skb->cb)); - if (!(rx->flags & IEEE80211_RX_REORDER_TIMER) && - rx->local->napi) - napi_gro_receive(rx->local->napi, skb); + if (rx->napi) + napi_gro_receive(rx->napi, skb); else netif_receive_skb(skb); } @@ -3256,7 +3255,7 @@ void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid) /* This is OK -- must be QoS data frame */ .security_idx = tid, .seqno_idx = tid, - .flags = IEEE80211_RX_REORDER_TIMER, + .napi = NULL, /* must be NULL to not have races */ }; struct tid_ampdu_rx *tid_agg_rx; @@ -3433,7 +3432,8 @@ static bool ieee80211_prepare_and_rx_handle(struct ieee80211_rx_data *rx, * be called with rcu_read_lock protection. */ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, - struct sk_buff *skb) + struct sk_buff *skb, + struct napi_struct *napi) { struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_sub_if_data *sdata; @@ -3449,6 +3449,7 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, memset(&rx, 0, sizeof(rx)); rx.skb = skb; rx.local = local; + rx.napi = napi; if (ieee80211_is_data(fc) || ieee80211_is_mgmt(fc)) I802_DEBUG_INC(local->dot11ReceivedFragmentCount); @@ -3550,7 +3551,8 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, * This is the receive path handler. It is called by a low level driver when an * 802.11 MPDU is received from the hardware. */ -void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb) +void ieee80211_rx_napi(struct ieee80211_hw *hw, struct sk_buff *skb, + struct napi_struct *napi) { struct ieee80211_local *local = hw_to_local(hw); struct ieee80211_rate *rate = NULL; @@ -3649,7 +3651,7 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb) ieee80211_tpt_led_trig_rx(local, ((struct ieee80211_hdr *)skb->data)->frame_control, skb->len); - __ieee80211_rx_handle_packet(hw, skb); + __ieee80211_rx_handle_packet(hw, skb, napi); rcu_read_unlock(); @@ -3657,7 +3659,7 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb) drop: kfree_skb(skb); } -EXPORT_SYMBOL(ieee80211_rx); +EXPORT_SYMBOL(ieee80211_rx_napi); /* This is a version of the rx handler that can be called from hard irq * context. Post the skb on the queue and schedule the tasklet */