1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 Intel Deutschland GmbH
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
26 * The full GNU General Public License is included in this distribution
27 * in the file called COPYING.
29 * Contact Information:
30 * Intel Linux Wireless <linuxwifi@intel.com>
31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
36 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
37 * All rights reserved.
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
43 * * Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * * Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in
47 * the documentation and/or other materials provided with the
49 * * Neither the name Intel Corporation nor the names of its
50 * contributors may be used to endorse or promote products derived
51 * from this software without specific prior written permission.
53 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
54 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
55 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
56 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
57 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
58 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
59 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
63 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *****************************************************************************/
65 #include <linux/etherdevice.h>
66 #include <linux/skbuff.h>
67 #include "iwl-trans.h"
73 * iwl_mvm_rx_rx_phy_cmd - REPLY_RX_PHY_CMD handler
75 * Copies the phy information in mvm->last_phy_info, it will be used when the
76 * actual data will come from the fw in the next packet.
78 void iwl_mvm_rx_rx_phy_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
80 struct iwl_rx_packet *pkt = rxb_addr(rxb);
82 memcpy(&mvm->last_phy_info, pkt->data, sizeof(mvm->last_phy_info));
85 #ifdef CONFIG_IWLWIFI_DEBUGFS
86 if (mvm->last_phy_info.phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_AGG)) {
87 spin_lock(&mvm->drv_stats_lock);
88 mvm->drv_rx_stats.ampdu_count++;
89 spin_unlock(&mvm->drv_stats_lock);
95 * iwl_mvm_pass_packet_to_mac80211 - builds the packet for mac80211
97 * Adds the rxb to a new skb and give it to mac80211
99 static void iwl_mvm_pass_packet_to_mac80211(struct iwl_mvm *mvm,
100 struct ieee80211_sta *sta,
101 struct napi_struct *napi,
103 struct ieee80211_hdr *hdr, u16 len,
104 u32 ampdu_status, u8 crypt_len,
105 struct iwl_rx_cmd_buffer *rxb)
107 unsigned int hdrlen, fraglen;
109 /* If frame is small enough to fit in skb->head, pull it completely.
110 * If not, only pull ieee80211_hdr (including crypto if present, and
111 * an additional 8 bytes for SNAP/ethertype, see below) so that
112 * splice() or TCP coalesce are more efficient.
114 * Since, in addition, ieee80211_data_to_8023() always pull in at
115 * least 8 bytes (possibly more for mesh) we can do the same here
116 * to save the cost of doing it later. That still doesn't pull in
117 * the actual IP header since the typical case has a SNAP header.
118 * If the latter changes (there are efforts in the standards group
119 * to do so) we should revisit this and ieee80211_data_to_8023().
121 hdrlen = (len <= skb_tailroom(skb)) ? len :
122 sizeof(*hdr) + crypt_len + 8;
124 memcpy(skb_put(skb, hdrlen), hdr, hdrlen);
125 fraglen = len - hdrlen;
128 int offset = (void *)hdr + hdrlen -
129 rxb_addr(rxb) + rxb_offset(rxb);
131 skb_add_rx_frag(skb, 0, rxb_steal_page(rxb), offset,
132 fraglen, rxb->truesize);
135 ieee80211_rx_napi(mvm->hw, sta, skb, napi);
139 * iwl_mvm_get_signal_strength - use new rx PHY INFO API
140 * values are reported by the fw as positive values - need to negate
141 * to obtain their dBM. Account for missing antennas by replacing 0
142 * values by -256dBm: practically 0 power and a non-feasible 8 bit value.
144 static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm,
145 struct iwl_rx_phy_info *phy_info,
146 struct ieee80211_rx_status *rx_status)
148 int energy_a, energy_b, energy_c, max_energy;
152 le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_ENERGY_ANT_ABC_IDX]);
153 energy_a = (val & IWL_RX_INFO_ENERGY_ANT_A_MSK) >>
154 IWL_RX_INFO_ENERGY_ANT_A_POS;
155 energy_a = energy_a ? -energy_a : S8_MIN;
156 energy_b = (val & IWL_RX_INFO_ENERGY_ANT_B_MSK) >>
157 IWL_RX_INFO_ENERGY_ANT_B_POS;
158 energy_b = energy_b ? -energy_b : S8_MIN;
159 energy_c = (val & IWL_RX_INFO_ENERGY_ANT_C_MSK) >>
160 IWL_RX_INFO_ENERGY_ANT_C_POS;
161 energy_c = energy_c ? -energy_c : S8_MIN;
162 max_energy = max(energy_a, energy_b);
163 max_energy = max(max_energy, energy_c);
165 IWL_DEBUG_STATS(mvm, "energy In A %d B %d C %d , and max %d\n",
166 energy_a, energy_b, energy_c, max_energy);
168 rx_status->signal = max_energy;
169 rx_status->chains = (le16_to_cpu(phy_info->phy_flags) &
170 RX_RES_PHY_FLAGS_ANTENNA)
171 >> RX_RES_PHY_FLAGS_ANTENNA_POS;
172 rx_status->chain_signal[0] = energy_a;
173 rx_status->chain_signal[1] = energy_b;
174 rx_status->chain_signal[2] = energy_c;
178 * iwl_mvm_set_mac80211_rx_flag - translate fw status to mac80211 format
179 * @mvm: the mvm object
181 * @stats: status in mac80211's format
182 * @rx_pkt_status: status coming from fw
184 * returns non 0 value if the packet should be dropped
186 static u32 iwl_mvm_set_mac80211_rx_flag(struct iwl_mvm *mvm,
187 struct ieee80211_hdr *hdr,
188 struct ieee80211_rx_status *stats,
192 if (!ieee80211_has_protected(hdr->frame_control) ||
193 (rx_pkt_status & RX_MPDU_RES_STATUS_SEC_ENC_MSK) ==
194 RX_MPDU_RES_STATUS_SEC_NO_ENC)
197 /* packet was encrypted with unknown alg */
198 if ((rx_pkt_status & RX_MPDU_RES_STATUS_SEC_ENC_MSK) ==
199 RX_MPDU_RES_STATUS_SEC_ENC_ERR)
202 switch (rx_pkt_status & RX_MPDU_RES_STATUS_SEC_ENC_MSK) {
203 case RX_MPDU_RES_STATUS_SEC_CCM_ENC:
204 /* alg is CCM: check MIC only */
205 if (!(rx_pkt_status & RX_MPDU_RES_STATUS_MIC_OK))
208 stats->flag |= RX_FLAG_DECRYPTED;
209 *crypt_len = IEEE80211_CCMP_HDR_LEN;
212 case RX_MPDU_RES_STATUS_SEC_TKIP_ENC:
213 /* Don't drop the frame and decrypt it in SW */
214 if (!(rx_pkt_status & RX_MPDU_RES_STATUS_TTAK_OK))
216 *crypt_len = IEEE80211_TKIP_IV_LEN;
217 /* fall through if TTAK OK */
219 case RX_MPDU_RES_STATUS_SEC_WEP_ENC:
220 if (!(rx_pkt_status & RX_MPDU_RES_STATUS_ICV_OK))
223 stats->flag |= RX_FLAG_DECRYPTED;
224 if ((rx_pkt_status & RX_MPDU_RES_STATUS_SEC_ENC_MSK) ==
225 RX_MPDU_RES_STATUS_SEC_WEP_ENC)
226 *crypt_len = IEEE80211_WEP_IV_LEN;
229 case RX_MPDU_RES_STATUS_SEC_EXT_ENC:
230 if (!(rx_pkt_status & RX_MPDU_RES_STATUS_MIC_OK))
232 stats->flag |= RX_FLAG_DECRYPTED;
236 IWL_ERR(mvm, "Unhandled alg: 0x%x\n", rx_pkt_status);
242 static void iwl_mvm_rx_csum(struct ieee80211_sta *sta,
246 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
247 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
249 if (mvmvif->features & NETIF_F_RXCSUM &&
250 status & RX_MPDU_RES_STATUS_CSUM_DONE &&
251 status & RX_MPDU_RES_STATUS_CSUM_OK)
252 skb->ip_summed = CHECKSUM_UNNECESSARY;
256 * iwl_mvm_rx_rx_mpdu - REPLY_RX_MPDU_CMD handler
258 * Handles the actual data of the Rx packet from the fw
260 void iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct napi_struct *napi,
261 struct iwl_rx_cmd_buffer *rxb)
263 struct ieee80211_hdr *hdr;
264 struct ieee80211_rx_status *rx_status;
265 struct iwl_rx_packet *pkt = rxb_addr(rxb);
266 struct iwl_rx_phy_info *phy_info;
267 struct iwl_rx_mpdu_res_start *rx_res;
268 struct ieee80211_sta *sta = NULL;
277 phy_info = &mvm->last_phy_info;
278 rx_res = (struct iwl_rx_mpdu_res_start *)pkt->data;
279 hdr = (struct ieee80211_hdr *)(pkt->data + sizeof(*rx_res));
280 len = le16_to_cpu(rx_res->byte_count);
281 rx_pkt_status = le32_to_cpup((__le32 *)
282 (pkt->data + sizeof(*rx_res) + len));
284 /* Dont use dev_alloc_skb(), we'll have enough headroom once
285 * ieee80211_hdr pulled.
287 skb = alloc_skb(128, GFP_ATOMIC);
289 IWL_ERR(mvm, "alloc_skb failed\n");
293 rx_status = IEEE80211_SKB_RXCB(skb);
296 * drop the packet if it has failed being decrypted by HW
298 if (iwl_mvm_set_mac80211_rx_flag(mvm, hdr, rx_status, rx_pkt_status,
300 IWL_DEBUG_DROP(mvm, "Bad decryption results 0x%08x\n",
307 * Keep packets with CRC errors (and with overrun) for monitor mode
308 * (otherwise the firmware discards them) but mark them as bad.
310 if (!(rx_pkt_status & RX_MPDU_RES_STATUS_CRC_OK) ||
311 !(rx_pkt_status & RX_MPDU_RES_STATUS_OVERRUN_OK)) {
312 IWL_DEBUG_RX(mvm, "Bad CRC or FIFO: 0x%08X.\n", rx_pkt_status);
313 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
316 /* This will be used in several places later */
317 rate_n_flags = le32_to_cpu(phy_info->rate_n_flags);
319 /* rx_status carries information about the packet to mac80211 */
320 rx_status->mactime = le64_to_cpu(phy_info->timestamp);
321 rx_status->device_timestamp = le32_to_cpu(phy_info->system_timestamp);
323 (phy_info->phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_BAND_24)) ?
324 NL80211_BAND_2GHZ : NL80211_BAND_5GHZ;
326 ieee80211_channel_to_frequency(le16_to_cpu(phy_info->channel),
329 /* TSF as indicated by the firmware is at INA time */
330 rx_status->flag |= RX_FLAG_MACTIME_PLCP_START;
332 iwl_mvm_get_signal_strength(mvm, phy_info, rx_status);
334 IWL_DEBUG_STATS_LIMIT(mvm, "Rssi %d, TSF %llu\n", rx_status->signal,
335 (unsigned long long)rx_status->mactime);
338 if (rx_pkt_status & RX_MPDU_RES_STATUS_SRC_STA_FOUND) {
339 u32 id = rx_pkt_status & RX_MPDU_RES_STATUS_STA_ID_MSK;
341 id >>= RX_MDPU_RES_STATUS_STA_ID_SHIFT;
343 if (!WARN_ON_ONCE(id >= IWL_MVM_STATION_COUNT)) {
344 sta = rcu_dereference(mvm->fw_id_to_mac_id[id]);
348 } else if (!is_multicast_ether_addr(hdr->addr2)) {
349 /* This is fine since we prevent two stations with the same
350 * address from being added.
352 sta = ieee80211_find_sta_by_ifaddr(mvm->hw, hdr->addr2, NULL);
356 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
357 struct ieee80211_vif *tx_blocked_vif =
358 rcu_dereference(mvm->csa_tx_blocked_vif);
360 /* We have tx blocked stations (with CS bit). If we heard
361 * frames from a blocked station on a new channel we can
364 if (unlikely(tx_blocked_vif) &&
365 mvmsta->vif == tx_blocked_vif) {
366 struct iwl_mvm_vif *mvmvif =
367 iwl_mvm_vif_from_mac80211(tx_blocked_vif);
369 if (mvmvif->csa_target_freq == rx_status->freq)
370 iwl_mvm_sta_modify_disable_tx_ap(mvm, sta,
374 rs_update_last_rssi(mvm, &mvmsta->lq_sta, rx_status);
376 if (iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_RSSI) &&
377 ieee80211_is_beacon(hdr->frame_control)) {
378 struct iwl_fw_dbg_trigger_tlv *trig;
379 struct iwl_fw_dbg_trigger_low_rssi *rssi_trig;
383 trig = iwl_fw_dbg_get_trigger(mvm->fw,
384 FW_DBG_TRIGGER_RSSI);
385 rssi_trig = (void *)trig->data;
386 rssi = le32_to_cpu(rssi_trig->rssi);
389 iwl_fw_dbg_trigger_check_stop(mvm, mvmsta->vif,
391 if (trig_check && rx_status->signal < rssi)
392 iwl_mvm_fw_dbg_collect_trig(mvm, trig, NULL);
395 if (ieee80211_is_data(hdr->frame_control))
396 iwl_mvm_rx_csum(sta, skb, rx_pkt_status);
400 /* set the preamble flag if appropriate */
401 if (phy_info->phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_SHORT_PREAMBLE))
402 rx_status->flag |= RX_FLAG_SHORTPRE;
404 if (phy_info->phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_AGG)) {
406 * We know which subframes of an A-MPDU belong
407 * together since we get a single PHY response
408 * from the firmware for all of them
410 rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
411 rx_status->ampdu_reference = mvm->ampdu_ref;
414 /* Set up the HT phy flags */
415 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
416 case RATE_MCS_CHAN_WIDTH_20:
418 case RATE_MCS_CHAN_WIDTH_40:
419 rx_status->flag |= RX_FLAG_40MHZ;
421 case RATE_MCS_CHAN_WIDTH_80:
422 rx_status->vht_flag |= RX_VHT_FLAG_80MHZ;
424 case RATE_MCS_CHAN_WIDTH_160:
425 rx_status->vht_flag |= RX_VHT_FLAG_160MHZ;
428 if (rate_n_flags & RATE_MCS_SGI_MSK)
429 rx_status->flag |= RX_FLAG_SHORT_GI;
430 if (rate_n_flags & RATE_HT_MCS_GF_MSK)
431 rx_status->flag |= RX_FLAG_HT_GF;
432 if (rate_n_flags & RATE_MCS_LDPC_MSK)
433 rx_status->flag |= RX_FLAG_LDPC;
434 if (rate_n_flags & RATE_MCS_HT_MSK) {
435 u8 stbc = (rate_n_flags & RATE_MCS_HT_STBC_MSK) >>
437 rx_status->flag |= RX_FLAG_HT;
438 rx_status->rate_idx = rate_n_flags & RATE_HT_MCS_INDEX_MSK;
439 rx_status->flag |= stbc << RX_FLAG_STBC_SHIFT;
440 } else if (rate_n_flags & RATE_MCS_VHT_MSK) {
441 u8 stbc = (rate_n_flags & RATE_MCS_VHT_STBC_MSK) >>
444 ((rate_n_flags & RATE_VHT_MCS_NSS_MSK) >>
445 RATE_VHT_MCS_NSS_POS) + 1;
446 rx_status->rate_idx = rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK;
447 rx_status->flag |= RX_FLAG_VHT;
448 rx_status->flag |= stbc << RX_FLAG_STBC_SHIFT;
449 if (rate_n_flags & RATE_MCS_BF_MSK)
450 rx_status->vht_flag |= RX_VHT_FLAG_BF;
452 rx_status->rate_idx =
453 iwl_mvm_legacy_rate_to_mac80211_idx(rate_n_flags,
457 #ifdef CONFIG_IWLWIFI_DEBUGFS
458 iwl_mvm_update_frame_stats(mvm, rate_n_flags,
459 rx_status->flag & RX_FLAG_AMPDU_DETAILS);
462 if (unlikely((ieee80211_is_beacon(hdr->frame_control) ||
463 ieee80211_is_probe_resp(hdr->frame_control)) &&
464 mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_ENABLED))
465 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_FOUND;
467 if (unlikely(ieee80211_is_beacon(hdr->frame_control) ||
468 ieee80211_is_probe_resp(hdr->frame_control)))
469 rx_status->boottime_ns = ktime_get_boot_ns();
471 /* Take a reference briefly to kick off a d0i3 entry delay so
472 * we can handle bursts of RX packets without toggling the
473 * state too often. But don't do this for beacons if we are
474 * going to idle because the beacon filtering changes we make
475 * cause the firmware to send us collateral beacons. */
476 take_ref = !(test_bit(STATUS_TRANS_GOING_IDLE, &mvm->trans->status) &&
477 ieee80211_is_beacon(hdr->frame_control));
480 iwl_mvm_ref(mvm, IWL_MVM_REF_RX);
482 iwl_mvm_pass_packet_to_mac80211(mvm, sta, napi, skb, hdr, len,
483 ampdu_status, crypt_len, rxb);
486 iwl_mvm_unref(mvm, IWL_MVM_REF_RX);
489 static void iwl_mvm_update_rx_statistics(struct iwl_mvm *mvm,
490 struct mvm_statistics_rx *rx_stats)
492 lockdep_assert_held(&mvm->mutex);
494 mvm->rx_stats = *rx_stats;
497 struct iwl_mvm_stat_data {
500 u8 beacon_filter_average_energy;
501 struct mvm_statistics_general_v8 *general;
504 static void iwl_mvm_stat_iterator(void *_data, u8 *mac,
505 struct ieee80211_vif *vif)
507 struct iwl_mvm_stat_data *data = _data;
508 struct iwl_mvm *mvm = data->mvm;
509 int sig = -data->beacon_filter_average_energy;
511 int thold = vif->bss_conf.cqm_rssi_thold;
512 int hyst = vif->bss_conf.cqm_rssi_hyst;
513 u16 id = le32_to_cpu(data->mac_id);
514 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
516 /* This doesn't need the MAC ID check since it's not taking the
517 * data copied into the "data" struct, but rather the data from
518 * the notification directly.
521 mvmvif->beacon_stats.num_beacons =
522 le32_to_cpu(data->general->beacon_counter[mvmvif->id]);
523 mvmvif->beacon_stats.avg_signal =
524 -data->general->beacon_average_energy[mvmvif->id];
527 if (mvmvif->id != id)
530 if (vif->type != NL80211_IFTYPE_STATION)
534 IWL_DEBUG_RX(mvm, "RSSI is 0 - skip signal based decision\n");
538 mvmvif->bf_data.ave_beacon_signal = sig;
541 if (mvmvif->bf_data.bt_coex_min_thold !=
542 mvmvif->bf_data.bt_coex_max_thold) {
543 last_event = mvmvif->bf_data.last_bt_coex_event;
544 if (sig > mvmvif->bf_data.bt_coex_max_thold &&
545 (last_event <= mvmvif->bf_data.bt_coex_min_thold ||
547 mvmvif->bf_data.last_bt_coex_event = sig;
548 IWL_DEBUG_RX(mvm, "cqm_iterator bt coex high %d\n",
550 iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_HIGH);
551 } else if (sig < mvmvif->bf_data.bt_coex_min_thold &&
552 (last_event >= mvmvif->bf_data.bt_coex_max_thold ||
554 mvmvif->bf_data.last_bt_coex_event = sig;
555 IWL_DEBUG_RX(mvm, "cqm_iterator bt coex low %d\n",
557 iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_LOW);
561 if (!(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
564 /* CQM Notification */
565 last_event = mvmvif->bf_data.last_cqm_event;
566 if (thold && sig < thold && (last_event == 0 ||
567 sig < last_event - hyst)) {
568 mvmvif->bf_data.last_cqm_event = sig;
569 IWL_DEBUG_RX(mvm, "cqm_iterator cqm low %d\n",
571 ieee80211_cqm_rssi_notify(
573 NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
575 } else if (sig > thold &&
576 (last_event == 0 || sig > last_event + hyst)) {
577 mvmvif->bf_data.last_cqm_event = sig;
578 IWL_DEBUG_RX(mvm, "cqm_iterator cqm high %d\n",
580 ieee80211_cqm_rssi_notify(
582 NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
588 iwl_mvm_rx_stats_check_trigger(struct iwl_mvm *mvm, struct iwl_rx_packet *pkt)
590 struct iwl_fw_dbg_trigger_tlv *trig;
591 struct iwl_fw_dbg_trigger_stats *trig_stats;
592 u32 trig_offset, trig_thold;
594 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_STATS))
597 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_STATS);
598 trig_stats = (void *)trig->data;
600 if (!iwl_fw_dbg_trigger_check_stop(mvm, NULL, trig))
603 trig_offset = le32_to_cpu(trig_stats->stop_offset);
604 trig_thold = le32_to_cpu(trig_stats->stop_threshold);
606 if (WARN_ON_ONCE(trig_offset >= iwl_rx_packet_payload_len(pkt)))
609 if (le32_to_cpup((__le32 *) (pkt->data + trig_offset)) < trig_thold)
612 iwl_mvm_fw_dbg_collect_trig(mvm, trig, NULL);
615 void iwl_mvm_handle_rx_statistics(struct iwl_mvm *mvm,
616 struct iwl_rx_packet *pkt)
618 struct iwl_notif_statistics_v10 *stats = (void *)&pkt->data;
619 struct iwl_mvm_stat_data data = {
624 if (iwl_rx_packet_payload_len(pkt) != sizeof(*stats))
627 temperature = le32_to_cpu(stats->general.radio_temperature);
628 data.mac_id = stats->rx.general.mac_id;
629 data.beacon_filter_average_energy =
630 stats->general.beacon_filter_average_energy;
632 iwl_mvm_update_rx_statistics(mvm, &stats->rx);
634 mvm->radio_stats.rx_time = le64_to_cpu(stats->general.rx_time);
635 mvm->radio_stats.tx_time = le64_to_cpu(stats->general.tx_time);
636 mvm->radio_stats.on_time_rf =
637 le64_to_cpu(stats->general.on_time_rf);
638 mvm->radio_stats.on_time_scan =
639 le64_to_cpu(stats->general.on_time_scan);
641 data.general = &stats->general;
643 iwl_mvm_rx_stats_check_trigger(mvm, pkt);
645 ieee80211_iterate_active_interfaces(mvm->hw,
646 IEEE80211_IFACE_ITER_NORMAL,
647 iwl_mvm_stat_iterator,
651 IWL_ERR(mvm, "received invalid statistics size (%d)!\n",
652 iwl_rx_packet_payload_len(pkt));
655 void iwl_mvm_rx_statistics(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
657 iwl_mvm_handle_rx_statistics(mvm, rxb_addr(rxb));
660 void iwl_mvm_window_status_notif(struct iwl_mvm *mvm,
661 struct iwl_rx_cmd_buffer *rxb)
663 struct iwl_rx_packet *pkt = rxb_addr(rxb);
664 struct iwl_ba_window_status_notif *notif = (void *)pkt->data;
666 u32 pkt_len = iwl_rx_packet_payload_len(pkt);
668 if (WARN_ONCE(pkt_len != sizeof(*notif),
669 "Received window status notification of wrong size (%u)\n",
674 for (i = 0; i < BA_WINDOW_STREAMS_MAX; i++) {
675 struct ieee80211_sta *sta;
682 ratid = le16_to_cpu(notif->ra_tid[i]);
683 /* check that this TID is valid */
684 if (!(ratid & BA_WINDOW_STATUS_VALID_MSK))
687 received_mpdu = le16_to_cpu(notif->mpdu_rx_count[i]);
688 if (received_mpdu == 0)
691 tid = ratid & BA_WINDOW_STATUS_TID_MSK;
692 /* get the station */
693 sta_id = (ratid & BA_WINDOW_STATUS_STA_ID_MSK)
694 >> BA_WINDOW_STATUS_STA_ID_POS;
695 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
696 if (IS_ERR_OR_NULL(sta))
698 bitmap = le64_to_cpu(notif->bitmap[i]);
699 ssn = le32_to_cpu(notif->start_seq_num[i]);
701 /* update mac80211 with the bitmap for the reordering buffer */
702 ieee80211_mark_rx_ba_filtered_frames(sta, tid, ssn, bitmap,