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 spin_unlock_bh(&htt->tx_lock);
96 dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
98 ath10k_report_offchan_tx(htt->ar, msdu);
100 info = IEEE80211_SKB_CB(msdu);
101 memset(&info->status, 0, sizeof(info->status));
102 info->status.rates[0].idx = -1;
104 trace_ath10k_txrx_tx_unref(ar, tx_done->msdu_id);
106 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
107 info->flags |= IEEE80211_TX_STAT_ACK;
109 if (tx_done->status == HTT_TX_COMPL_STATE_NOACK)
110 info->flags &= ~IEEE80211_TX_STAT_ACK;
112 if ((tx_done->status == HTT_TX_COMPL_STATE_ACK) &&
113 (info->flags & IEEE80211_TX_CTL_NO_ACK))
114 info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
116 if (tx_done->status == HTT_TX_COMPL_STATE_DISCARD) {
117 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
118 info->flags &= ~IEEE80211_TX_STAT_NOACK_TRANSMITTED;
120 info->flags &= ~IEEE80211_TX_STAT_ACK;
123 if (tx_done->status == HTT_TX_COMPL_STATE_ACK &&
124 tx_done->ack_rssi != ATH10K_INVALID_RSSI) {
125 info->status.ack_signal = ATH10K_DEFAULT_NOISE_FLOOR +
127 info->status.is_valid_ack_signal = true;
130 ieee80211_tx_status(htt->ar->hw, msdu);
131 /* we do not own the msdu anymore */
136 struct ath10k_peer *ath10k_peer_find(struct ath10k *ar, int vdev_id,
139 struct ath10k_peer *peer;
141 lockdep_assert_held(&ar->data_lock);
143 list_for_each_entry(peer, &ar->peers, list) {
144 if (peer->vdev_id != vdev_id)
146 if (!ether_addr_equal(peer->addr, addr))
155 struct ath10k_peer *ath10k_peer_find_by_id(struct ath10k *ar, int peer_id)
157 struct ath10k_peer *peer;
159 if (peer_id >= BITS_PER_TYPE(peer->peer_ids))
162 lockdep_assert_held(&ar->data_lock);
164 list_for_each_entry(peer, &ar->peers, list)
165 if (test_bit(peer_id, peer->peer_ids))
171 static int ath10k_wait_for_peer_common(struct ath10k *ar, int vdev_id,
172 const u8 *addr, bool expect_mapped)
176 time_left = wait_event_timeout(ar->peer_mapping_wq, ({
179 spin_lock_bh(&ar->data_lock);
180 mapped = !!ath10k_peer_find(ar, vdev_id, addr);
181 spin_unlock_bh(&ar->data_lock);
183 (mapped == expect_mapped ||
184 test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags));
193 int ath10k_wait_for_peer_created(struct ath10k *ar, int vdev_id, const u8 *addr)
195 return ath10k_wait_for_peer_common(ar, vdev_id, addr, true);
198 int ath10k_wait_for_peer_deleted(struct ath10k *ar, int vdev_id, const u8 *addr)
200 return ath10k_wait_for_peer_common(ar, vdev_id, addr, false);
203 void ath10k_peer_map_event(struct ath10k_htt *htt,
204 struct htt_peer_map_event *ev)
206 struct ath10k *ar = htt->ar;
207 struct ath10k_peer *peer;
209 if (ev->peer_id >= ATH10K_MAX_NUM_PEER_IDS) {
211 "received htt peer map event with idx out of bounds: %hu\n",
216 spin_lock_bh(&ar->data_lock);
217 peer = ath10k_peer_find(ar, ev->vdev_id, ev->addr);
219 peer = kzalloc(sizeof(*peer), GFP_ATOMIC);
223 peer->vdev_id = ev->vdev_id;
224 ether_addr_copy(peer->addr, ev->addr);
225 list_add(&peer->list, &ar->peers);
226 wake_up(&ar->peer_mapping_wq);
229 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt peer map vdev %d peer %pM id %d\n",
230 ev->vdev_id, ev->addr, ev->peer_id);
232 WARN_ON(ar->peer_map[ev->peer_id] && (ar->peer_map[ev->peer_id] != peer));
233 ar->peer_map[ev->peer_id] = peer;
234 set_bit(ev->peer_id, peer->peer_ids);
236 spin_unlock_bh(&ar->data_lock);
239 void ath10k_peer_unmap_event(struct ath10k_htt *htt,
240 struct htt_peer_unmap_event *ev)
242 struct ath10k *ar = htt->ar;
243 struct ath10k_peer *peer;
245 if (ev->peer_id >= ATH10K_MAX_NUM_PEER_IDS) {
247 "received htt peer unmap event with idx out of bounds: %hu\n",
252 spin_lock_bh(&ar->data_lock);
253 peer = ath10k_peer_find_by_id(ar, ev->peer_id);
255 ath10k_warn(ar, "peer-unmap-event: unknown peer id %d\n",
260 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt peer unmap vdev %d peer %pM id %d\n",
261 peer->vdev_id, peer->addr, ev->peer_id);
263 ar->peer_map[ev->peer_id] = NULL;
264 clear_bit(ev->peer_id, peer->peer_ids);
266 if (bitmap_empty(peer->peer_ids, ATH10K_MAX_NUM_PEER_IDS)) {
267 list_del(&peer->list);
269 wake_up(&ar->peer_mapping_wq);
273 spin_unlock_bh(&ar->data_lock);