| /* |
| * Copyright (c) 2005-2011 Atheros Communications Inc. |
| * Copyright (c) 2011-2013 Qualcomm Atheros, Inc. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #include "txrx.h" |
| |
| #include "core.h" |
| #include "debug.h" |
| #include "htt.h" |
| #include "mac.h" |
| |
| #if 0 // NEEDS PORTING |
| static void ath10k_report_offchan_tx(struct ath10k* ar, struct sk_buff* skb) { |
| struct ieee80211_tx_info* info = IEEE80211_SKB_CB(skb); |
| |
| if (likely(!(info->flags & IEEE80211_TX_CTL_TX_OFFCHAN))) { |
| return; |
| } |
| |
| if (ath10k_mac_tx_frm_has_freq(ar)) { |
| return; |
| } |
| |
| /* If the original wait_for_completion() timed out before |
| * {data,mgmt}_tx_completed() was called then we could complete |
| * offchan_tx_completed for a different skb. Prevent this by using |
| * offchan_tx_skb. |
| */ |
| mtx_lock(&ar->data_lock); |
| if (ar->offchan_tx_skb != skb) { |
| ath10k_warn("completed old offchannel frame\n"); |
| goto out; |
| } |
| |
| complete(&ar->offchan_tx_completed); |
| ar->offchan_tx_skb = NULL; /* just for sanity */ |
| |
| ath10k_dbg(ar, ATH10K_DBG_HTT, "completed offchannel skb %pK\n", skb); |
| out: |
| mtx_unlock(&ar->data_lock); |
| } |
| #endif // NEEDS PORTING |
| |
| zx_status_t ath10k_txrx_tx_unref(struct ath10k_htt* htt, const struct htt_tx_done* tx_done) { |
| struct ath10k* ar = htt->ar; |
| struct ath10k_msg_buf* msdu; |
| |
| ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx completion msdu_id %u status %d\n", tx_done->msdu_id, |
| tx_done->status); |
| |
| if (tx_done->msdu_id >= htt->max_num_pending_tx) { |
| ath10k_warn("warning: msdu_id %d too big, ignoring\n", tx_done->msdu_id); |
| return ZX_ERR_INVALID_ARGS; |
| } |
| |
| mtx_lock(&htt->tx_lock); |
| msdu = sa_get(htt->pending_tx, tx_done->msdu_id); |
| if (msdu == NULL) { |
| ath10k_warn("received tx completion for invalid msdu_id: %d\n", tx_done->msdu_id); |
| mtx_unlock(&htt->tx_lock); |
| return ZX_ERR_IO; |
| } |
| |
| ath10k_htt_tx_free_msdu_id(htt, tx_done->msdu_id); |
| ath10k_htt_tx_dec_pending(htt); |
| mtx_unlock(&htt->tx_lock); |
| |
| #if 0 // NEEDS PORTING |
| dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE); |
| |
| ath10k_report_offchan_tx(htt->ar, msdu); |
| |
| info = IEEE80211_SKB_CB(msdu); |
| memset(&info->status, 0, sizeof(info->status)); |
| |
| if (tx_done->status == HTT_TX_COMPL_STATE_DISCARD) { |
| ieee80211_free_txskb(htt->ar->hw, msdu); |
| return 0; |
| } |
| |
| if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
| info->flags |= IEEE80211_TX_STAT_ACK; |
| } |
| |
| if (tx_done->status == HTT_TX_COMPL_STATE_NOACK) { |
| info->flags &= ~IEEE80211_TX_STAT_ACK; |
| } |
| |
| if ((tx_done->status == HTT_TX_COMPL_STATE_ACK) && |
| (info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
| info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED; |
| } |
| #endif // NEEDS PORTING |
| |
| ath10k_msg_buf_free(msdu); |
| return ZX_OK; |
| } |
| |
| struct ath10k_peer* ath10k_peer_find(struct ath10k* ar, uint32_t vdev_id, const uint8_t* addr) { |
| ASSERT_MTX_HELD(&ar->data_lock); |
| |
| struct ath10k_peer* peer; |
| list_for_every_entry(&ar->peers, peer, struct ath10k_peer, listnode) { |
| if (peer->vdev_id != vdev_id) { |
| continue; |
| } |
| if (memcmp(peer->addr, addr, ETH_ALEN)) { |
| continue; |
| } |
| return peer; |
| } |
| return NULL; |
| } |
| |
| struct ath10k_peer* ath10k_peer_find_by_id(struct ath10k* ar, int peer_id) { |
| ASSERT_MTX_HELD(&ar->data_lock); |
| |
| struct ath10k_peer* peer; |
| list_for_every_entry(&ar->peers, peer, struct ath10k_peer, listnode) { |
| if (BITARR_TEST(peer->peer_ids, peer_id)) { |
| return peer; |
| } |
| } |
| return NULL; |
| } |
| |
| static int ath10k_wait_for_peer_common(struct ath10k* ar, uint32_t vdev_id, |
| const uint8_t* addr, bool expect_mapped) { |
| struct timespec deadline; |
| clock_gettime(CLOCK_REALTIME, &deadline); // would be nice if we could use the monotonic clock |
| deadline.tv_sec += 3; |
| |
| zx_status_t ret; |
| mtx_lock(&ar->data_lock); |
| for (;;) { |
| bool mapped = ath10k_peer_find(ar, vdev_id, addr) != NULL; |
| |
| if (mapped == expect_mapped) { |
| ret = ZX_OK; |
| break; |
| } |
| |
| if (BITARR_TEST(ar->dev_flags, ATH10K_FLAG_CRASH_FLUSH)) { |
| ret = ZX_ERR_INTERNAL; |
| break; |
| } |
| |
| if (thrd_timedout == cnd_timedwait(&ar->peer_mapping_cnd, &ar->data_lock, &deadline)) { |
| ret = ZX_ERR_TIMED_OUT; |
| break; |
| } |
| } |
| mtx_unlock(&ar->data_lock); |
| return ret; |
| } |
| |
| int ath10k_wait_for_peer_created(struct ath10k* ar, uint32_t vdev_id, const uint8_t* addr) { |
| return ath10k_wait_for_peer_common(ar, vdev_id, addr, true); |
| } |
| |
| int ath10k_wait_for_peer_deleted(struct ath10k* ar, uint32_t vdev_id, const uint8_t* addr) { |
| return ath10k_wait_for_peer_common(ar, vdev_id, addr, false); |
| } |
| |
| void ath10k_peer_map_event(struct ath10k_htt* htt, struct htt_peer_map_event* ev) { |
| if (ev->peer_id >= ATH10K_MAX_NUM_PEER_IDS) { |
| ath10k_warn("received htt peer map event with idx out of bounds: %hu\n", |
| ev->peer_id); |
| return; |
| } |
| |
| struct ath10k* ar = htt->ar; |
| mtx_lock(&ar->data_lock); |
| struct ath10k_peer* peer = ath10k_peer_find(ar, ev->vdev_id, ev->addr); |
| if (!peer) { |
| peer = calloc(1, sizeof(*peer)); |
| if (!peer) { |
| goto exit; |
| } |
| |
| peer->vdev_id = ev->vdev_id; |
| memcpy(peer->addr, ev->addr, ETH_ALEN); |
| list_add_tail(&ar->peers, &peer->listnode); |
| |
| cnd_broadcast(&ar->peer_mapping_cnd); |
| } |
| |
| ath10k_dbg(ar, ATH10K_DBG_HTT, "htt peer map vdev %d peer %pM id %d\n", |
| ev->vdev_id, ev->addr, ev->peer_id); |
| |
| COND_WARN(ar->peer_map[ev->peer_id] && (ar->peer_map[ev->peer_id] != peer)); |
| ar->peer_map[ev->peer_id] = peer; |
| BITARR_SET(peer->peer_ids, ev->peer_id); |
| exit: |
| mtx_unlock(&ar->data_lock); |
| } |
| |
| void ath10k_peer_unmap_event(struct ath10k_htt* htt, struct htt_peer_unmap_event* ev) { |
| if (ev->peer_id >= ATH10K_MAX_NUM_PEER_IDS) { |
| ath10k_warn("received htt peer unmap event with idx out of bounds: %hu\n", |
| ev->peer_id); |
| return; |
| } |
| |
| struct ath10k* ar = htt->ar; |
| mtx_lock(&ar->data_lock); |
| struct ath10k_peer* peer = ath10k_peer_find_by_id(ar, ev->peer_id); |
| if (!peer) { |
| ath10k_warn("peer-unmap-event: unknown peer id %d\n", |
| ev->peer_id); |
| goto exit; |
| } |
| |
| ath10k_dbg(ar, ATH10K_DBG_HTT, "htt peer unmap vdev %d peer %pM id %d\n", |
| peer->vdev_id, peer->addr, ev->peer_id); |
| |
| ar->peer_map[ev->peer_id] = NULL; |
| BITARR_CLEAR(peer->peer_ids, ev->peer_id); |
| |
| if (bitarr_empty(peer->peer_ids, ATH10K_MAX_NUM_PEER_IDS)) { |
| list_delete(&peer->listnode); |
| free(peer); |
| cnd_broadcast(&ar->peer_mapping_cnd); |
| } |
| |
| exit: |
| mtx_unlock(&ar->data_lock); |
| } |
