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