This source file includes following definitions.
- ath10k_report_offchan_tx
- ath10k_txrx_tx_unref
- ath10k_peer_find
- ath10k_peer_find_by_id
- ath10k_wait_for_peer_common
- ath10k_wait_for_peer_created
- ath10k_wait_for_peer_deleted
- ath10k_peer_map_event
- ath10k_peer_unmap_event
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8 #include "core.h"
9 #include "txrx.h"
10 #include "htt.h"
11 #include "mac.h"
12 #include "debug.h"
13
14 static void ath10k_report_offchan_tx(struct ath10k *ar, struct sk_buff *skb)
15 {
16 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
17
18 if (likely(!(info->flags & IEEE80211_TX_CTL_TX_OFFCHAN)))
19 return;
20
21 if (ath10k_mac_tx_frm_has_freq(ar))
22 return;
23
24
25
26
27
28
29 spin_lock_bh(&ar->data_lock);
30 if (ar->offchan_tx_skb != skb) {
31 ath10k_warn(ar, "completed old offchannel frame\n");
32 goto out;
33 }
34
35 complete(&ar->offchan_tx_completed);
36 ar->offchan_tx_skb = NULL;
37
38 ath10k_dbg(ar, ATH10K_DBG_HTT, "completed offchannel skb %pK\n", skb);
39 out:
40 spin_unlock_bh(&ar->data_lock);
41 }
42
43 int ath10k_txrx_tx_unref(struct ath10k_htt *htt,
44 const struct htt_tx_done *tx_done)
45 {
46 struct ath10k *ar = htt->ar;
47 struct device *dev = ar->dev;
48 struct ieee80211_tx_info *info;
49 struct ieee80211_txq *txq;
50 struct ath10k_skb_cb *skb_cb;
51 struct ath10k_txq *artxq;
52 struct sk_buff *msdu;
53
54 ath10k_dbg(ar, ATH10K_DBG_HTT,
55 "htt tx completion msdu_id %u status %d\n",
56 tx_done->msdu_id, tx_done->status);
57
58 if (tx_done->msdu_id >= htt->max_num_pending_tx) {
59 ath10k_warn(ar, "warning: msdu_id %d too big, ignoring\n",
60 tx_done->msdu_id);
61 return -EINVAL;
62 }
63
64 spin_lock_bh(&htt->tx_lock);
65 msdu = idr_find(&htt->pending_tx, tx_done->msdu_id);
66 if (!msdu) {
67 ath10k_warn(ar, "received tx completion for invalid msdu_id: %d\n",
68 tx_done->msdu_id);
69 spin_unlock_bh(&htt->tx_lock);
70 return -ENOENT;
71 }
72
73 skb_cb = ATH10K_SKB_CB(msdu);
74 txq = skb_cb->txq;
75
76 if (txq) {
77 artxq = (void *)txq->drv_priv;
78 artxq->num_fw_queued--;
79 }
80
81 ath10k_htt_tx_free_msdu_id(htt, tx_done->msdu_id);
82 ath10k_htt_tx_dec_pending(htt);
83 if (htt->num_pending_tx == 0)
84 wake_up(&htt->empty_tx_wq);
85 spin_unlock_bh(&htt->tx_lock);
86
87 if (txq && txq->sta && skb_cb->airtime_est)
88 ieee80211_sta_register_airtime(txq->sta, txq->tid,
89 skb_cb->airtime_est, 0);
90
91 if (ar->bus_param.dev_type != ATH10K_DEV_TYPE_HL)
92 dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
93
94 ath10k_report_offchan_tx(htt->ar, msdu);
95
96 info = IEEE80211_SKB_CB(msdu);
97 memset(&info->status, 0, sizeof(info->status));
98 info->status.rates[0].idx = -1;
99
100 trace_ath10k_txrx_tx_unref(ar, tx_done->msdu_id);
101
102 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
103 info->flags |= IEEE80211_TX_STAT_ACK;
104
105 if (tx_done->status == HTT_TX_COMPL_STATE_NOACK)
106 info->flags &= ~IEEE80211_TX_STAT_ACK;
107
108 if ((tx_done->status == HTT_TX_COMPL_STATE_ACK) &&
109 (info->flags & IEEE80211_TX_CTL_NO_ACK))
110 info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
111
112 if (tx_done->status == HTT_TX_COMPL_STATE_DISCARD) {
113 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
114 info->flags &= ~IEEE80211_TX_STAT_NOACK_TRANSMITTED;
115 else
116 info->flags &= ~IEEE80211_TX_STAT_ACK;
117 }
118
119 if (tx_done->status == HTT_TX_COMPL_STATE_ACK &&
120 tx_done->ack_rssi != ATH10K_INVALID_RSSI) {
121 info->status.ack_signal = ATH10K_DEFAULT_NOISE_FLOOR +
122 tx_done->ack_rssi;
123 info->status.is_valid_ack_signal = true;
124 }
125
126 ieee80211_tx_status(htt->ar->hw, msdu);
127
128
129 return 0;
130 }
131
132 struct ath10k_peer *ath10k_peer_find(struct ath10k *ar, int vdev_id,
133 const u8 *addr)
134 {
135 struct ath10k_peer *peer;
136
137 lockdep_assert_held(&ar->data_lock);
138
139 list_for_each_entry(peer, &ar->peers, list) {
140 if (peer->vdev_id != vdev_id)
141 continue;
142 if (!ether_addr_equal(peer->addr, addr))
143 continue;
144
145 return peer;
146 }
147
148 return NULL;
149 }
150
151 struct ath10k_peer *ath10k_peer_find_by_id(struct ath10k *ar, int peer_id)
152 {
153 struct ath10k_peer *peer;
154
155 if (peer_id >= BITS_PER_TYPE(peer->peer_ids))
156 return NULL;
157
158 lockdep_assert_held(&ar->data_lock);
159
160 list_for_each_entry(peer, &ar->peers, list)
161 if (test_bit(peer_id, peer->peer_ids))
162 return peer;
163
164 return NULL;
165 }
166
167 static int ath10k_wait_for_peer_common(struct ath10k *ar, int vdev_id,
168 const u8 *addr, bool expect_mapped)
169 {
170 long time_left;
171
172 time_left = wait_event_timeout(ar->peer_mapping_wq, ({
173 bool mapped;
174
175 spin_lock_bh(&ar->data_lock);
176 mapped = !!ath10k_peer_find(ar, vdev_id, addr);
177 spin_unlock_bh(&ar->data_lock);
178
179 (mapped == expect_mapped ||
180 test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags));
181 }), 3 * HZ);
182
183 if (time_left == 0)
184 return -ETIMEDOUT;
185
186 return 0;
187 }
188
189 int ath10k_wait_for_peer_created(struct ath10k *ar, int vdev_id, const u8 *addr)
190 {
191 return ath10k_wait_for_peer_common(ar, vdev_id, addr, true);
192 }
193
194 int ath10k_wait_for_peer_deleted(struct ath10k *ar, int vdev_id, const u8 *addr)
195 {
196 return ath10k_wait_for_peer_common(ar, vdev_id, addr, false);
197 }
198
199 void ath10k_peer_map_event(struct ath10k_htt *htt,
200 struct htt_peer_map_event *ev)
201 {
202 struct ath10k *ar = htt->ar;
203 struct ath10k_peer *peer;
204
205 if (ev->peer_id >= ATH10K_MAX_NUM_PEER_IDS) {
206 ath10k_warn(ar,
207 "received htt peer map event with idx out of bounds: %hu\n",
208 ev->peer_id);
209 return;
210 }
211
212 spin_lock_bh(&ar->data_lock);
213 peer = ath10k_peer_find(ar, ev->vdev_id, ev->addr);
214 if (!peer) {
215 peer = kzalloc(sizeof(*peer), GFP_ATOMIC);
216 if (!peer)
217 goto exit;
218
219 peer->vdev_id = ev->vdev_id;
220 ether_addr_copy(peer->addr, ev->addr);
221 list_add(&peer->list, &ar->peers);
222 wake_up(&ar->peer_mapping_wq);
223 }
224
225 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt peer map vdev %d peer %pM id %d\n",
226 ev->vdev_id, ev->addr, ev->peer_id);
227
228 WARN_ON(ar->peer_map[ev->peer_id] && (ar->peer_map[ev->peer_id] != peer));
229 ar->peer_map[ev->peer_id] = peer;
230 set_bit(ev->peer_id, peer->peer_ids);
231 exit:
232 spin_unlock_bh(&ar->data_lock);
233 }
234
235 void ath10k_peer_unmap_event(struct ath10k_htt *htt,
236 struct htt_peer_unmap_event *ev)
237 {
238 struct ath10k *ar = htt->ar;
239 struct ath10k_peer *peer;
240
241 if (ev->peer_id >= ATH10K_MAX_NUM_PEER_IDS) {
242 ath10k_warn(ar,
243 "received htt peer unmap event with idx out of bounds: %hu\n",
244 ev->peer_id);
245 return;
246 }
247
248 spin_lock_bh(&ar->data_lock);
249 peer = ath10k_peer_find_by_id(ar, ev->peer_id);
250 if (!peer) {
251 ath10k_warn(ar, "peer-unmap-event: unknown peer id %d\n",
252 ev->peer_id);
253 goto exit;
254 }
255
256 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt peer unmap vdev %d peer %pM id %d\n",
257 peer->vdev_id, peer->addr, ev->peer_id);
258
259 ar->peer_map[ev->peer_id] = NULL;
260 clear_bit(ev->peer_id, peer->peer_ids);
261
262 if (bitmap_empty(peer->peer_ids, ATH10K_MAX_NUM_PEER_IDS)) {
263 list_del(&peer->list);
264 kfree(peer);
265 wake_up(&ar->peer_mapping_wq);
266 }
267
268 exit:
269 spin_unlock_bh(&ar->data_lock);
270 }