1
2
3
4
5
6
7
8#include "core.h"
9#include "txrx.h"
10#include "htt.h"
11#include "mac.h"
12#include "debug.h"
13
14static 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);
39out:
40 spin_unlock_bh(&ar->data_lock);
41}
42
43int 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 u8 flags;
54
55 ath10k_dbg(ar, ATH10K_DBG_HTT,
56 "htt tx completion msdu_id %u status %d\n",
57 tx_done->msdu_id, tx_done->status);
58
59 if (tx_done->msdu_id >= htt->max_num_pending_tx) {
60 ath10k_warn(ar, "warning: msdu_id %d too big, ignoring\n",
61 tx_done->msdu_id);
62 return -EINVAL;
63 }
64
65 spin_lock_bh(&htt->tx_lock);
66 msdu = idr_find(&htt->pending_tx, tx_done->msdu_id);
67 if (!msdu) {
68 ath10k_warn(ar, "received tx completion for invalid msdu_id: %d\n",
69 tx_done->msdu_id);
70 spin_unlock_bh(&htt->tx_lock);
71 return -ENOENT;
72 }
73
74 skb_cb = ATH10K_SKB_CB(msdu);
75 txq = skb_cb->txq;
76
77 if (txq) {
78 artxq = (void *)txq->drv_priv;
79 artxq->num_fw_queued--;
80 }
81
82 flags = skb_cb->flags;
83 ath10k_htt_tx_free_msdu_id(htt, tx_done->msdu_id);
84 ath10k_htt_tx_dec_pending(htt);
85 if (htt->num_pending_tx == 0)
86 wake_up(&htt->empty_tx_wq);
87 spin_unlock_bh(&htt->tx_lock);
88
89 rcu_read_lock();
90 if (txq && txq->sta && skb_cb->airtime_est)
91 ieee80211_sta_register_airtime(txq->sta, txq->tid,
92 skb_cb->airtime_est, 0);
93 rcu_read_unlock();
94
95 if (ar->bus_param.dev_type != ATH10K_DEV_TYPE_HL)
96 dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
97
98 ath10k_report_offchan_tx(htt->ar, msdu);
99
100 info = IEEE80211_SKB_CB(msdu);
101 memset(&info->status, 0, sizeof(info->status));
102 info->status.rates[0].idx = -1;
103
104 trace_ath10k_txrx_tx_unref(ar, tx_done->msdu_id);
105
106 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
107 !(flags & ATH10K_SKB_F_NOACK_TID))
108 info->flags |= IEEE80211_TX_STAT_ACK;
109
110 if (tx_done->status == HTT_TX_COMPL_STATE_NOACK)
111 info->flags &= ~IEEE80211_TX_STAT_ACK;
112
113 if ((tx_done->status == HTT_TX_COMPL_STATE_ACK) &&
114 ((info->flags & IEEE80211_TX_CTL_NO_ACK) ||
115 (flags & ATH10K_SKB_F_NOACK_TID)))
116 info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
117
118 if (tx_done->status == HTT_TX_COMPL_STATE_DISCARD) {
119 if ((info->flags & IEEE80211_TX_CTL_NO_ACK) ||
120 (flags & ATH10K_SKB_F_NOACK_TID))
121 info->flags &= ~IEEE80211_TX_STAT_NOACK_TRANSMITTED;
122 else
123 info->flags &= ~IEEE80211_TX_STAT_ACK;
124 }
125
126 if (tx_done->status == HTT_TX_COMPL_STATE_ACK &&
127 tx_done->ack_rssi != ATH10K_INVALID_RSSI) {
128 info->status.ack_signal = ATH10K_DEFAULT_NOISE_FLOOR +
129 tx_done->ack_rssi;
130 info->status.is_valid_ack_signal = true;
131 }
132
133 ieee80211_tx_status(htt->ar->hw, msdu);
134
135
136 return 0;
137}
138
139struct ath10k_peer *ath10k_peer_find(struct ath10k *ar, int vdev_id,
140 const u8 *addr)
141{
142 struct ath10k_peer *peer;
143
144 lockdep_assert_held(&ar->data_lock);
145
146 list_for_each_entry(peer, &ar->peers, list) {
147 if (peer->vdev_id != vdev_id)
148 continue;
149 if (!ether_addr_equal(peer->addr, addr))
150 continue;
151
152 return peer;
153 }
154
155 return NULL;
156}
157
158struct ath10k_peer *ath10k_peer_find_by_id(struct ath10k *ar, int peer_id)
159{
160 struct ath10k_peer *peer;
161
162 if (peer_id >= BITS_PER_TYPE(peer->peer_ids))
163 return NULL;
164
165 lockdep_assert_held(&ar->data_lock);
166
167 list_for_each_entry(peer, &ar->peers, list)
168 if (test_bit(peer_id, peer->peer_ids))
169 return peer;
170
171 return NULL;
172}
173
174static int ath10k_wait_for_peer_common(struct ath10k *ar, int vdev_id,
175 const u8 *addr, bool expect_mapped)
176{
177 long time_left;
178
179 time_left = wait_event_timeout(ar->peer_mapping_wq, ({
180 bool mapped;
181
182 spin_lock_bh(&ar->data_lock);
183 mapped = !!ath10k_peer_find(ar, vdev_id, addr);
184 spin_unlock_bh(&ar->data_lock);
185
186 (mapped == expect_mapped ||
187 test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags));
188 }), 3 * HZ);
189
190 if (time_left == 0)
191 return -ETIMEDOUT;
192
193 return 0;
194}
195
196int ath10k_wait_for_peer_created(struct ath10k *ar, int vdev_id, const u8 *addr)
197{
198 return ath10k_wait_for_peer_common(ar, vdev_id, addr, true);
199}
200
201int ath10k_wait_for_peer_deleted(struct ath10k *ar, int vdev_id, const u8 *addr)
202{
203 return ath10k_wait_for_peer_common(ar, vdev_id, addr, false);
204}
205
206void ath10k_peer_map_event(struct ath10k_htt *htt,
207 struct htt_peer_map_event *ev)
208{
209 struct ath10k *ar = htt->ar;
210 struct ath10k_peer *peer;
211
212 if (ev->peer_id >= ATH10K_MAX_NUM_PEER_IDS) {
213 ath10k_warn(ar,
214 "received htt peer map event with idx out of bounds: %u\n",
215 ev->peer_id);
216 return;
217 }
218
219 spin_lock_bh(&ar->data_lock);
220 peer = ath10k_peer_find(ar, ev->vdev_id, ev->addr);
221 if (!peer) {
222 peer = kzalloc(sizeof(*peer), GFP_ATOMIC);
223 if (!peer)
224 goto exit;
225
226 peer->vdev_id = ev->vdev_id;
227 ether_addr_copy(peer->addr, ev->addr);
228 list_add(&peer->list, &ar->peers);
229 wake_up(&ar->peer_mapping_wq);
230 }
231
232 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt peer map vdev %d peer %pM id %d\n",
233 ev->vdev_id, ev->addr, ev->peer_id);
234
235 WARN_ON(ar->peer_map[ev->peer_id] && (ar->peer_map[ev->peer_id] != peer));
236 ar->peer_map[ev->peer_id] = peer;
237 set_bit(ev->peer_id, peer->peer_ids);
238exit:
239 spin_unlock_bh(&ar->data_lock);
240}
241
242void ath10k_peer_unmap_event(struct ath10k_htt *htt,
243 struct htt_peer_unmap_event *ev)
244{
245 struct ath10k *ar = htt->ar;
246 struct ath10k_peer *peer;
247
248 if (ev->peer_id >= ATH10K_MAX_NUM_PEER_IDS) {
249 ath10k_warn(ar,
250 "received htt peer unmap event with idx out of bounds: %u\n",
251 ev->peer_id);
252 return;
253 }
254
255 spin_lock_bh(&ar->data_lock);
256 peer = ath10k_peer_find_by_id(ar, ev->peer_id);
257 if (!peer) {
258 ath10k_warn(ar, "peer-unmap-event: unknown peer id %d\n",
259 ev->peer_id);
260 goto exit;
261 }
262
263 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt peer unmap vdev %d peer %pM id %d\n",
264 peer->vdev_id, peer->addr, ev->peer_id);
265
266 ar->peer_map[ev->peer_id] = NULL;
267 clear_bit(ev->peer_id, peer->peer_ids);
268
269 if (bitmap_empty(peer->peer_ids, ATH10K_MAX_NUM_PEER_IDS)) {
270 list_del(&peer->list);
271 kfree(peer);
272 wake_up(&ar->peer_mapping_wq);
273 }
274
275exit:
276 spin_unlock_bh(&ar->data_lock);
277}
278
