rx.c (0f1556bc2b152fc5d2a6b929c579748ec90c55d0) rx.c (5a50439775853a8d565115edb63a5ab4bb780479)
1/*
2 * Copyright (C) 2007-2012 Siemens AG
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2
6 * as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,

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37 * and only the data frame should be pushed to the upper layers, other types
38 * are just internal MAC layer management information. So only data packets
39 * are going to be sent to the networking queue, all other will be processed
40 * right here by using the device workqueue.
41 */
42struct rx_work {
43 struct sk_buff *skb;
44 struct work_struct work;
1/*
2 * Copyright (C) 2007-2012 Siemens AG
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2
6 * as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,

--- 28 unchanged lines hidden (view full) ---

37 * and only the data frame should be pushed to the upper layers, other types
38 * are just internal MAC layer management information. So only data packets
39 * are going to be sent to the networking queue, all other will be processed
40 * right here by using the device workqueue.
41 */
42struct rx_work {
43 struct sk_buff *skb;
44 struct work_struct work;
45 struct ieee802154_dev *dev;
45 struct ieee802154_hw *hw;
46 u8 lqi;
47};
48
49static void
46 u8 lqi;
47};
48
49static void
50mac802154_subif_rx(struct ieee802154_dev *hw, struct sk_buff *skb, u8 lqi)
50mac802154_subif_rx(struct ieee802154_hw *hw, struct sk_buff *skb, u8 lqi)
51{
52 struct mac802154_priv *priv = mac802154_to_priv(hw);
53
54 mac_cb(skb)->lqi = lqi;
55 skb->protocol = htons(ETH_P_IEEE802154);
56 skb_reset_mac_header(skb);
57
58 if (!(priv->hw.flags & IEEE802154_HW_OMIT_CKSUM)) {

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78fail:
79 kfree_skb(skb);
80}
81
82static void mac802154_rx_worker(struct work_struct *work)
83{
84 struct rx_work *rw = container_of(work, struct rx_work, work);
85
51{
52 struct mac802154_priv *priv = mac802154_to_priv(hw);
53
54 mac_cb(skb)->lqi = lqi;
55 skb->protocol = htons(ETH_P_IEEE802154);
56 skb_reset_mac_header(skb);
57
58 if (!(priv->hw.flags & IEEE802154_HW_OMIT_CKSUM)) {

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78fail:
79 kfree_skb(skb);
80}
81
82static void mac802154_rx_worker(struct work_struct *work)
83{
84 struct rx_work *rw = container_of(work, struct rx_work, work);
85
86 mac802154_subif_rx(rw->dev, rw->skb, rw->lqi);
86 mac802154_subif_rx(rw->hw, rw->skb, rw->lqi);
87 kfree(rw);
88}
89
90void
87 kfree(rw);
88}
89
90void
91ieee802154_rx_irqsafe(struct ieee802154_dev *dev, struct sk_buff *skb, u8 lqi)
91ieee802154_rx_irqsafe(struct ieee802154_hw *hw, struct sk_buff *skb, u8 lqi)
92{
92{
93 struct mac802154_priv *priv = mac802154_to_priv(dev);
93 struct mac802154_priv *priv = mac802154_to_priv(hw);
94 struct rx_work *work;
95
96 if (!skb)
97 return;
98
99 work = kzalloc(sizeof(*work), GFP_ATOMIC);
100 if (!work)
101 return;
102
103 INIT_WORK(&work->work, mac802154_rx_worker);
104 work->skb = skb;
94 struct rx_work *work;
95
96 if (!skb)
97 return;
98
99 work = kzalloc(sizeof(*work), GFP_ATOMIC);
100 if (!work)
101 return;
102
103 INIT_WORK(&work->work, mac802154_rx_worker);
104 work->skb = skb;
105 work->dev = dev;
105 work->hw = hw;
106 work->lqi = lqi;
107
108 queue_work(priv->dev_workqueue, &work->work);
109}
110EXPORT_SYMBOL(ieee802154_rx_irqsafe);
106 work->lqi = lqi;
107
108 queue_work(priv->dev_workqueue, &work->work);
109}
110EXPORT_SYMBOL(ieee802154_rx_irqsafe);