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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
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
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 rcu_read_lock();
88 if (txq && txq->sta && skb_cb->airtime_est)
89 ieee80211_sta_register_airtime(txq->sta, txq->tid,
90 skb_cb->airtime_est, 0);
91 rcu_read_unlock();
92
93 if (ar->bus_param.dev_type != ATH10K_DEV_TYPE_HL)
94 dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
95
96 ath10k_report_offchan_tx(htt->ar, msdu);
97
98 info = IEEE80211_SKB_CB(msdu);
99 memset(&info->status, 0, sizeof(info->status));
100 info->status.rates[0].idx = -1;
101
102 trace_ath10k_txrx_tx_unref(ar, tx_done->msdu_id);
103
104 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
105 info->flags |= IEEE80211_TX_STAT_ACK;
106
107 if (tx_done->status == HTT_TX_COMPL_STATE_NOACK)
108 info->flags &= ~IEEE80211_TX_STAT_ACK;
109
110 if ((tx_done->status == HTT_TX_COMPL_STATE_ACK) &&
111 (info->flags & IEEE80211_TX_CTL_NO_ACK))
112 info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
113
114 if (tx_done->status == HTT_TX_COMPL_STATE_DISCARD) {
115 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
116 info->flags &= ~IEEE80211_TX_STAT_NOACK_TRANSMITTED;
117 else
118 info->flags &= ~IEEE80211_TX_STAT_ACK;
119 }
120
121 if (tx_done->status == HTT_TX_COMPL_STATE_ACK &&
122 tx_done->ack_rssi != ATH10K_INVALID_RSSI) {
123 info->status.ack_signal = ATH10K_DEFAULT_NOISE_FLOOR +
124 tx_done->ack_rssi;
125 info->status.is_valid_ack_signal = true;
126 }
127
128 ieee80211_tx_status(htt->ar->hw, msdu);
129
130
131 return 0;
132}
133
134struct ath10k_peer *ath10k_peer_find(struct ath10k *ar, int vdev_id,
135 const u8 *addr)
136{
137 struct ath10k_peer *peer;
138
139 lockdep_assert_held(&ar->data_lock);
140
141 list_for_each_entry(peer, &ar->peers, list) {
142 if (peer->vdev_id != vdev_id)
143 continue;
144 if (!ether_addr_equal(peer->addr, addr))
145 continue;
146
147 return peer;
148 }
149
150 return NULL;
151}
152
153struct ath10k_peer *ath10k_peer_find_by_id(struct ath10k *ar, int peer_id)
154{
155 struct ath10k_peer *peer;
156
157 if (peer_id >= BITS_PER_TYPE(peer->peer_ids))
158 return NULL;
159
160 lockdep_assert_held(&ar->data_lock);
161
162 list_for_each_entry(peer, &ar->peers, list)
163 if (test_bit(peer_id, peer->peer_ids))
164 return peer;
165
166 return NULL;
167}
168
169static int ath10k_wait_for_peer_common(struct ath10k *ar, int vdev_id,
170 const u8 *addr, bool expect_mapped)
171{
172 long time_left;
173
174 time_left = wait_event_timeout(ar->peer_mapping_wq, ({
175 bool mapped;
176
177 spin_lock_bh(&ar->data_lock);
178 mapped = !!ath10k_peer_find(ar, vdev_id, addr);
179 spin_unlock_bh(&ar->data_lock);
180
181 (mapped == expect_mapped ||
182 test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags));
183 }), 3 * HZ);
184
185 if (time_left == 0)
186 return -ETIMEDOUT;
187
188 return 0;
189}
190
191int ath10k_wait_for_peer_created(struct ath10k *ar, int vdev_id, const u8 *addr)
192{
193 return ath10k_wait_for_peer_common(ar, vdev_id, addr, true);
194}
195
196int ath10k_wait_for_peer_deleted(struct ath10k *ar, int vdev_id, const u8 *addr)
197{
198 return ath10k_wait_for_peer_common(ar, vdev_id, addr, false);
199}
200
201void ath10k_peer_map_event(struct ath10k_htt *htt,
202 struct htt_peer_map_event *ev)
203{
204 struct ath10k *ar = htt->ar;
205 struct ath10k_peer *peer;
206
207 if (ev->peer_id >= ATH10K_MAX_NUM_PEER_IDS) {
208 ath10k_warn(ar,
209 "received htt peer map event with idx out of bounds: %hu\n",
210 ev->peer_id);
211 return;
212 }
213
214 spin_lock_bh(&ar->data_lock);
215 peer = ath10k_peer_find(ar, ev->vdev_id, ev->addr);
216 if (!peer) {
217 peer = kzalloc(sizeof(*peer), GFP_ATOMIC);
218 if (!peer)
219 goto exit;
220
221 peer->vdev_id = ev->vdev_id;
222 ether_addr_copy(peer->addr, ev->addr);
223 list_add(&peer->list, &ar->peers);
224 wake_up(&ar->peer_mapping_wq);
225 }
226
227 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt peer map vdev %d peer %pM id %d\n",
228 ev->vdev_id, ev->addr, ev->peer_id);
229
230 WARN_ON(ar->peer_map[ev->peer_id] && (ar->peer_map[ev->peer_id] != peer));
231 ar->peer_map[ev->peer_id] = peer;
232 set_bit(ev->peer_id, peer->peer_ids);
233exit:
234 spin_unlock_bh(&ar->data_lock);
235}
236
237void ath10k_peer_unmap_event(struct ath10k_htt *htt,
238 struct htt_peer_unmap_event *ev)
239{
240 struct ath10k *ar = htt->ar;
241 struct ath10k_peer *peer;
242
243 if (ev->peer_id >= ATH10K_MAX_NUM_PEER_IDS) {
244 ath10k_warn(ar,
245 "received htt peer unmap event with idx out of bounds: %hu\n",
246 ev->peer_id);
247 return;
248 }
249
250 spin_lock_bh(&ar->data_lock);
251 peer = ath10k_peer_find_by_id(ar, ev->peer_id);
252 if (!peer) {
253 ath10k_warn(ar, "peer-unmap-event: unknown peer id %d\n",
254 ev->peer_id);
255 goto exit;
256 }
257
258 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt peer unmap vdev %d peer %pM id %d\n",
259 peer->vdev_id, peer->addr, ev->peer_id);
260
261 ar->peer_map[ev->peer_id] = NULL;
262 clear_bit(ev->peer_id, peer->peer_ids);
263
264 if (bitmap_empty(peer->peer_ids, ATH10K_MAX_NUM_PEER_IDS)) {
265 list_del(&peer->list);
266 kfree(peer);
267 wake_up(&ar->peer_mapping_wq);
268 }
269
270exit:
271 spin_unlock_bh(&ar->data_lock);
272}
273
