2 * Copyright (c) 2005-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2016 Qualcomm Atheros, Inc.
4 * Copyright (c) 2018, The Linux Foundation. All rights reserved.
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
25 static void ath10k_report_offchan_tx(struct ath10k *ar, struct sk_buff *skb)
27 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
29 if (likely(!(info->flags & IEEE80211_TX_CTL_TX_OFFCHAN)))
32 if (ath10k_mac_tx_frm_has_freq(ar))
35 /* If the original wait_for_completion() timed out before
36 * {data,mgmt}_tx_completed() was called then we could complete
37 * offchan_tx_completed for a different skb. Prevent this by using
40 spin_lock_bh(&ar->data_lock);
41 if (ar->offchan_tx_skb != skb) {
42 ath10k_warn(ar, "completed old offchannel frame\n");
46 complete(&ar->offchan_tx_completed);
47 ar->offchan_tx_skb = NULL; /* just for sanity */
49 ath10k_dbg(ar, ATH10K_DBG_HTT, "completed offchannel skb %pK\n", skb);
51 spin_unlock_bh(&ar->data_lock);
54 int ath10k_txrx_tx_unref(struct ath10k_htt *htt,
55 const struct htt_tx_done *tx_done)
57 struct ath10k *ar = htt->ar;
58 struct device *dev = ar->dev;
59 struct ieee80211_tx_info *info;
60 struct ieee80211_txq *txq;
61 struct ath10k_skb_cb *skb_cb;
62 struct ath10k_txq *artxq;
65 ath10k_dbg(ar, ATH10K_DBG_HTT,
66 "htt tx completion msdu_id %u status %d\n",
67 tx_done->msdu_id, tx_done->status);
69 if (tx_done->msdu_id >= htt->max_num_pending_tx) {
70 ath10k_warn(ar, "warning: msdu_id %d too big, ignoring\n",
75 spin_lock_bh(&htt->tx_lock);
76 msdu = idr_find(&htt->pending_tx, tx_done->msdu_id);
78 ath10k_warn(ar, "received tx completion for invalid msdu_id: %d\n",
80 spin_unlock_bh(&htt->tx_lock);
84 skb_cb = ATH10K_SKB_CB(msdu);
88 artxq = (void *)txq->drv_priv;
89 artxq->num_fw_queued--;
92 ath10k_htt_tx_free_msdu_id(htt, tx_done->msdu_id);
93 ath10k_htt_tx_dec_pending(htt);
94 if (htt->num_pending_tx == 0)
95 wake_up(&htt->empty_tx_wq);
96 spin_unlock_bh(&htt->tx_lock);
98 if (txq && txq->sta && skb_cb->airtime_est)
99 ieee80211_sta_register_airtime(txq->sta, txq->tid,
100 skb_cb->airtime_est, 0);
102 if (ar->bus_param.dev_type != ATH10K_DEV_TYPE_HL)
103 dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
105 ath10k_report_offchan_tx(htt->ar, msdu);
107 info = IEEE80211_SKB_CB(msdu);
108 memset(&info->status, 0, sizeof(info->status));
109 trace_ath10k_txrx_tx_unref(ar, tx_done->msdu_id);
111 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
112 info->flags |= IEEE80211_TX_STAT_ACK;
114 if (tx_done->status == HTT_TX_COMPL_STATE_NOACK)
115 info->flags &= ~IEEE80211_TX_STAT_ACK;
117 if ((tx_done->status == HTT_TX_COMPL_STATE_ACK) &&
118 (info->flags & IEEE80211_TX_CTL_NO_ACK))
119 info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
121 if (tx_done->status == HTT_TX_COMPL_STATE_DISCARD) {
122 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
123 info->flags &= ~IEEE80211_TX_STAT_NOACK_TRANSMITTED;
125 info->flags &= ~IEEE80211_TX_STAT_ACK;
128 if (tx_done->status == HTT_TX_COMPL_STATE_ACK &&
129 tx_done->ack_rssi != ATH10K_INVALID_RSSI) {
130 info->status.ack_signal = ATH10K_DEFAULT_NOISE_FLOOR +
132 info->status.is_valid_ack_signal = true;
135 ieee80211_tx_status(htt->ar->hw, msdu);
136 /* we do not own the msdu anymore */
141 struct ath10k_peer *ath10k_peer_find(struct ath10k *ar, int vdev_id,
144 struct ath10k_peer *peer;
146 lockdep_assert_held(&ar->data_lock);
148 list_for_each_entry(peer, &ar->peers, list) {
149 if (peer->vdev_id != vdev_id)
151 if (!ether_addr_equal(peer->addr, addr))
160 struct ath10k_peer *ath10k_peer_find_by_id(struct ath10k *ar, int peer_id)
162 struct ath10k_peer *peer;
164 lockdep_assert_held(&ar->data_lock);
166 list_for_each_entry(peer, &ar->peers, list)
167 if (test_bit(peer_id, peer->peer_ids))
173 static int ath10k_wait_for_peer_common(struct ath10k *ar, int vdev_id,
174 const u8 *addr, bool expect_mapped)
178 time_left = wait_event_timeout(ar->peer_mapping_wq, ({
181 spin_lock_bh(&ar->data_lock);
182 mapped = !!ath10k_peer_find(ar, vdev_id, addr);
183 spin_unlock_bh(&ar->data_lock);
185 (mapped == expect_mapped ||
186 test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags));
195 int ath10k_wait_for_peer_created(struct ath10k *ar, int vdev_id, const u8 *addr)
197 return ath10k_wait_for_peer_common(ar, vdev_id, addr, true);
200 int ath10k_wait_for_peer_deleted(struct ath10k *ar, int vdev_id, const u8 *addr)
202 return ath10k_wait_for_peer_common(ar, vdev_id, addr, false);
205 void ath10k_peer_map_event(struct ath10k_htt *htt,
206 struct htt_peer_map_event *ev)
208 struct ath10k *ar = htt->ar;
209 struct ath10k_peer *peer;
211 if (ev->peer_id >= ATH10K_MAX_NUM_PEER_IDS) {
213 "received htt peer map event with idx out of bounds: %hu\n",
218 spin_lock_bh(&ar->data_lock);
219 peer = ath10k_peer_find(ar, ev->vdev_id, ev->addr);
221 peer = kzalloc(sizeof(*peer), GFP_ATOMIC);
225 peer->vdev_id = ev->vdev_id;
226 ether_addr_copy(peer->addr, ev->addr);
227 list_add(&peer->list, &ar->peers);
228 wake_up(&ar->peer_mapping_wq);
231 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt peer map vdev %d peer %pM id %d\n",
232 ev->vdev_id, ev->addr, ev->peer_id);
234 WARN_ON(ar->peer_map[ev->peer_id] && (ar->peer_map[ev->peer_id] != peer));
235 ar->peer_map[ev->peer_id] = peer;
236 set_bit(ev->peer_id, peer->peer_ids);
238 spin_unlock_bh(&ar->data_lock);
241 void ath10k_peer_unmap_event(struct ath10k_htt *htt,
242 struct htt_peer_unmap_event *ev)
244 struct ath10k *ar = htt->ar;
245 struct ath10k_peer *peer;
247 if (ev->peer_id >= ATH10K_MAX_NUM_PEER_IDS) {
249 "received htt peer unmap event with idx out of bounds: %hu\n",
254 spin_lock_bh(&ar->data_lock);
255 peer = ath10k_peer_find_by_id(ar, ev->peer_id);
257 ath10k_warn(ar, "peer-unmap-event: unknown peer id %d\n",
262 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt peer unmap vdev %d peer %pM id %d\n",
263 peer->vdev_id, peer->addr, ev->peer_id);
265 ar->peer_map[ev->peer_id] = NULL;
266 clear_bit(ev->peer_id, peer->peer_ids);
268 if (bitmap_empty(peer->peer_ids, ATH10K_MAX_NUM_PEER_IDS)) {
269 list_del(&peer->list);
271 wake_up(&ar->peer_mapping_wq);
275 spin_unlock_bh(&ar->data_lock);