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1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause2/*3 * Copyright (C) 2012-2014, 2018-2024 Intel Corporation4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH5 * Copyright (C) 2016-2017 Intel Deutschland GmbH6 */7#include <linux/unaligned.h>8#include <linux/etherdevice.h>9#include <linux/skbuff.h>10#include "iwl-trans.h"11#include "mvm.h"12#include "fw-api.h"13 14/*15 * iwl_mvm_rx_rx_phy_cmd - REPLY_RX_PHY_CMD handler16 *17 * Copies the phy information in mvm->last_phy_info, it will be used when the18 * actual data will come from the fw in the next packet.19 */20void iwl_mvm_rx_rx_phy_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)21{22 struct iwl_rx_packet *pkt = rxb_addr(rxb);23 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt);24 25 if (unlikely(pkt_len < sizeof(mvm->last_phy_info)))26 return;27 28 memcpy(&mvm->last_phy_info, pkt->data, sizeof(mvm->last_phy_info));29 mvm->ampdu_ref++;30 31#ifdef CONFIG_IWLWIFI_DEBUGFS32 if (mvm->last_phy_info.phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_AGG)) {33 spin_lock(&mvm->drv_stats_lock);34 mvm->drv_rx_stats.ampdu_count++;35 spin_unlock(&mvm->drv_stats_lock);36 }37#endif38}39 40/*41 * iwl_mvm_pass_packet_to_mac80211 - builds the packet for mac8021142 *43 * Adds the rxb to a new skb and give it to mac8021144 */45static void iwl_mvm_pass_packet_to_mac80211(struct iwl_mvm *mvm,46 struct ieee80211_sta *sta,47 struct napi_struct *napi,48 struct sk_buff *skb,49 struct ieee80211_hdr *hdr, u16 len,50 u8 crypt_len,51 struct iwl_rx_cmd_buffer *rxb)52{53 unsigned int hdrlen = ieee80211_hdrlen(hdr->frame_control);54 unsigned int fraglen;55 56 /*57 * The 'hdrlen' (plus the 8 bytes for the SNAP and the crypt_len,58 * but those are all multiples of 4 long) all goes away, but we59 * want the *end* of it, which is going to be the start of the IP60 * header, to be aligned when it gets pulled in.61 * The beginning of the skb->data is aligned on at least a 4-byte62 * boundary after allocation. Everything here is aligned at least63 * on a 2-byte boundary so we can just take hdrlen & 3 and pad by64 * the result.65 */66 skb_reserve(skb, hdrlen & 3);67 68 /* If frame is small enough to fit in skb->head, pull it completely.69 * If not, only pull ieee80211_hdr (including crypto if present, and70 * an additional 8 bytes for SNAP/ethertype, see below) so that71 * splice() or TCP coalesce are more efficient.72 *73 * Since, in addition, ieee80211_data_to_8023() always pull in at74 * least 8 bytes (possibly more for mesh) we can do the same here75 * to save the cost of doing it later. That still doesn't pull in76 * the actual IP header since the typical case has a SNAP header.77 * If the latter changes (there are efforts in the standards group78 * to do so) we should revisit this and ieee80211_data_to_8023().79 */80 hdrlen = (len <= skb_tailroom(skb)) ? len : hdrlen + crypt_len + 8;81 82 skb_put_data(skb, hdr, hdrlen);83 fraglen = len - hdrlen;84 85 if (fraglen) {86 int offset = (u8 *)hdr + hdrlen -87 (u8 *)rxb_addr(rxb) + rxb_offset(rxb);88 89 skb_add_rx_frag(skb, 0, rxb_steal_page(rxb), offset,90 fraglen, rxb->truesize);91 }92 93 ieee80211_rx_napi(mvm->hw, sta, skb, napi);94}95 96/*97 * iwl_mvm_get_signal_strength - use new rx PHY INFO API98 * values are reported by the fw as positive values - need to negate99 * to obtain their dBM. Account for missing antennas by replacing 0100 * values by -256dBm: practically 0 power and a non-feasible 8 bit value.101 */102static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm,103 struct iwl_rx_phy_info *phy_info,104 struct ieee80211_rx_status *rx_status)105{106 int energy_a, energy_b, max_energy;107 u32 val;108 109 val =110 le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_ENERGY_ANT_ABC_IDX]);111 energy_a = (val & IWL_RX_INFO_ENERGY_ANT_A_MSK) >>112 IWL_RX_INFO_ENERGY_ANT_A_POS;113 energy_a = energy_a ? -energy_a : S8_MIN;114 energy_b = (val & IWL_RX_INFO_ENERGY_ANT_B_MSK) >>115 IWL_RX_INFO_ENERGY_ANT_B_POS;116 energy_b = energy_b ? -energy_b : S8_MIN;117 max_energy = max(energy_a, energy_b);118 119 IWL_DEBUG_STATS(mvm, "energy In A %d B %d , and max %d\n",120 energy_a, energy_b, max_energy);121 122 rx_status->signal = max_energy;123 rx_status->chains = (le16_to_cpu(phy_info->phy_flags) &124 RX_RES_PHY_FLAGS_ANTENNA)125 >> RX_RES_PHY_FLAGS_ANTENNA_POS;126 rx_status->chain_signal[0] = energy_a;127 rx_status->chain_signal[1] = energy_b;128}129 130/*131 * iwl_mvm_set_mac80211_rx_flag - translate fw status to mac80211 format132 * @mvm: the mvm object133 * @hdr: 80211 header134 * @stats: status in mac80211's format135 * @rx_pkt_status: status coming from fw136 *137 * returns non 0 value if the packet should be dropped138 */139static u32 iwl_mvm_set_mac80211_rx_flag(struct iwl_mvm *mvm,140 struct ieee80211_hdr *hdr,141 struct ieee80211_rx_status *stats,142 u32 rx_pkt_status,143 u8 *crypt_len)144{145 if (!ieee80211_has_protected(hdr->frame_control) ||146 (rx_pkt_status & RX_MPDU_RES_STATUS_SEC_ENC_MSK) ==147 RX_MPDU_RES_STATUS_SEC_NO_ENC)148 return 0;149 150 /* packet was encrypted with unknown alg */151 if ((rx_pkt_status & RX_MPDU_RES_STATUS_SEC_ENC_MSK) ==152 RX_MPDU_RES_STATUS_SEC_ENC_ERR)153 return 0;154 155 switch (rx_pkt_status & RX_MPDU_RES_STATUS_SEC_ENC_MSK) {156 case RX_MPDU_RES_STATUS_SEC_CCM_ENC:157 /* alg is CCM: check MIC only */158 if (!(rx_pkt_status & RX_MPDU_RES_STATUS_MIC_OK))159 return -1;160 161 stats->flag |= RX_FLAG_DECRYPTED;162 *crypt_len = IEEE80211_CCMP_HDR_LEN;163 return 0;164 165 case RX_MPDU_RES_STATUS_SEC_TKIP_ENC:166 /* Don't drop the frame and decrypt it in SW */167 if (!fw_has_api(&mvm->fw->ucode_capa,168 IWL_UCODE_TLV_API_DEPRECATE_TTAK) &&169 !(rx_pkt_status & RX_MPDU_RES_STATUS_TTAK_OK))170 return 0;171 *crypt_len = IEEE80211_TKIP_IV_LEN;172 fallthrough;173 174 case RX_MPDU_RES_STATUS_SEC_WEP_ENC:175 if (!(rx_pkt_status & RX_MPDU_RES_STATUS_ICV_OK))176 return -1;177 178 stats->flag |= RX_FLAG_DECRYPTED;179 if ((rx_pkt_status & RX_MPDU_RES_STATUS_SEC_ENC_MSK) ==180 RX_MPDU_RES_STATUS_SEC_WEP_ENC)181 *crypt_len = IEEE80211_WEP_IV_LEN;182 return 0;183 184 case RX_MPDU_RES_STATUS_SEC_EXT_ENC:185 if (!(rx_pkt_status & RX_MPDU_RES_STATUS_MIC_OK))186 return -1;187 stats->flag |= RX_FLAG_DECRYPTED;188 return 0;189 190 default:191 /* Expected in monitor (not having the keys) */192 if (!mvm->monitor_on)193 IWL_WARN(mvm, "Unhandled alg: 0x%x\n", rx_pkt_status);194 }195 196 return 0;197}198 199static void iwl_mvm_rx_handle_tcm(struct iwl_mvm *mvm,200 struct ieee80211_sta *sta,201 struct ieee80211_hdr *hdr, u32 len,202 struct iwl_rx_phy_info *phy_info,203 u32 rate_n_flags)204{205 struct iwl_mvm_sta *mvmsta;206 struct iwl_mvm_tcm_mac *mdata;207 int mac;208 int ac = IEEE80211_AC_BE; /* treat non-QoS as BE */209 struct iwl_mvm_vif *mvmvif;210 /* expected throughput in 100Kbps, single stream, 20 MHz */211 static const u8 thresh_tpt[] = {212 9, 18, 30, 42, 60, 78, 90, 96, 120, 135,213 };214 u16 thr;215 216 if (ieee80211_is_data_qos(hdr->frame_control)) {217 u8 tid = ieee80211_get_tid(hdr);218 219 if (tid < IWL_MAX_TID_COUNT)220 ac = tid_to_mac80211_ac[tid];221 }222 223 mvmsta = iwl_mvm_sta_from_mac80211(sta);224 mac = mvmsta->mac_id_n_color & FW_CTXT_ID_MSK;225 226 if (time_after(jiffies, mvm->tcm.ts + MVM_TCM_PERIOD))227 schedule_delayed_work(&mvm->tcm.work, 0);228 mdata = &mvm->tcm.data[mac];229 mdata->rx.pkts[ac]++;230 231 /* count the airtime only once for each ampdu */232 if (mdata->rx.last_ampdu_ref != mvm->ampdu_ref) {233 mdata->rx.last_ampdu_ref = mvm->ampdu_ref;234 mdata->rx.airtime += le16_to_cpu(phy_info->frame_time);235 }236 237 if (!(rate_n_flags & (RATE_MCS_HT_MSK_V1 | RATE_MCS_VHT_MSK_V1)))238 return;239 240 mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);241 242 if (mdata->opened_rx_ba_sessions ||243 mdata->uapsd_nonagg_detect.detected ||244 (!mvmvif->deflink.queue_params[IEEE80211_AC_VO].uapsd &&245 !mvmvif->deflink.queue_params[IEEE80211_AC_VI].uapsd &&246 !mvmvif->deflink.queue_params[IEEE80211_AC_BE].uapsd &&247 !mvmvif->deflink.queue_params[IEEE80211_AC_BK].uapsd) ||248 mvmsta->deflink.sta_id != mvmvif->deflink.ap_sta_id)249 return;250 251 if (rate_n_flags & RATE_MCS_HT_MSK_V1) {252 thr = thresh_tpt[rate_n_flags & RATE_HT_MCS_RATE_CODE_MSK_V1];253 thr *= 1 + ((rate_n_flags & RATE_HT_MCS_NSS_MSK_V1) >>254 RATE_HT_MCS_NSS_POS_V1);255 } else {256 if (WARN_ON((rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK) >=257 ARRAY_SIZE(thresh_tpt)))258 return;259 thr = thresh_tpt[rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK];260 thr *= 1 + FIELD_GET(RATE_MCS_NSS_MSK, rate_n_flags);261 }262 263 thr <<= ((rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK_V1) >>264 RATE_MCS_CHAN_WIDTH_POS);265 266 mdata->uapsd_nonagg_detect.rx_bytes += len;267 ewma_rate_add(&mdata->uapsd_nonagg_detect.rate, thr);268}269 270static void iwl_mvm_rx_csum(struct ieee80211_sta *sta,271 struct sk_buff *skb,272 u32 status)273{274 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);275 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);276 277 if (mvmvif->features & NETIF_F_RXCSUM &&278 status & RX_MPDU_RES_STATUS_CSUM_DONE &&279 status & RX_MPDU_RES_STATUS_CSUM_OK)280 skb->ip_summed = CHECKSUM_UNNECESSARY;281}282 283/*284 * iwl_mvm_rx_rx_mpdu - REPLY_RX_MPDU_CMD handler285 *286 * Handles the actual data of the Rx packet from the fw287 */288void iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct napi_struct *napi,289 struct iwl_rx_cmd_buffer *rxb)290{291 struct ieee80211_hdr *hdr;292 struct ieee80211_rx_status *rx_status;293 struct iwl_rx_packet *pkt = rxb_addr(rxb);294 struct iwl_rx_phy_info *phy_info;295 struct iwl_rx_mpdu_res_start *rx_res;296 struct ieee80211_sta *sta = NULL;297 struct sk_buff *skb;298 u32 len, pkt_len = iwl_rx_packet_payload_len(pkt);299 u32 rate_n_flags;300 u32 rx_pkt_status;301 u8 crypt_len = 0;302 303 if (unlikely(pkt_len < sizeof(*rx_res))) {304 IWL_DEBUG_DROP(mvm, "Bad REPLY_RX_MPDU_CMD size\n");305 return;306 }307 308 phy_info = &mvm->last_phy_info;309 rx_res = (struct iwl_rx_mpdu_res_start *)pkt->data;310 hdr = (struct ieee80211_hdr *)(pkt->data + sizeof(*rx_res));311 len = le16_to_cpu(rx_res->byte_count);312 313 if (unlikely(len + sizeof(*rx_res) + sizeof(__le32) > pkt_len)) {314 IWL_DEBUG_DROP(mvm, "FW lied about packet len\n");315 return;316 }317 318 rx_pkt_status = get_unaligned_le32((__le32 *)319 (pkt->data + sizeof(*rx_res) + len));320 321 /* Dont use dev_alloc_skb(), we'll have enough headroom once322 * ieee80211_hdr pulled.323 */324 skb = alloc_skb(128, GFP_ATOMIC);325 if (!skb) {326 IWL_ERR(mvm, "alloc_skb failed\n");327 return;328 }329 330 rx_status = IEEE80211_SKB_RXCB(skb);331 332 /*333 * Keep packets with CRC errors (and with overrun) for monitor mode334 * (otherwise the firmware discards them) but mark them as bad.335 */336 if (!(rx_pkt_status & RX_MPDU_RES_STATUS_CRC_OK) ||337 !(rx_pkt_status & RX_MPDU_RES_STATUS_OVERRUN_OK)) {338 IWL_DEBUG_RX(mvm, "Bad CRC or FIFO: 0x%08X.\n", rx_pkt_status);339 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;340 }341 342 /* This will be used in several places later */343 rate_n_flags = le32_to_cpu(phy_info->rate_n_flags);344 345 /* rx_status carries information about the packet to mac80211 */346 rx_status->mactime = le64_to_cpu(phy_info->timestamp);347 rx_status->device_timestamp = le32_to_cpu(phy_info->system_timestamp);348 rx_status->band =349 (phy_info->phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_BAND_24)) ?350 NL80211_BAND_2GHZ : NL80211_BAND_5GHZ;351 rx_status->freq =352 ieee80211_channel_to_frequency(le16_to_cpu(phy_info->channel),353 rx_status->band);354 355 /* TSF as indicated by the firmware is at INA time */356 rx_status->flag |= RX_FLAG_MACTIME_PLCP_START;357 358 iwl_mvm_get_signal_strength(mvm, phy_info, rx_status);359 360 IWL_DEBUG_STATS_LIMIT(mvm, "Rssi %d, TSF %llu\n", rx_status->signal,361 (unsigned long long)rx_status->mactime);362 363 rcu_read_lock();364 if (rx_pkt_status & RX_MPDU_RES_STATUS_SRC_STA_FOUND) {365 u32 id = rx_pkt_status & RX_MPDU_RES_STATUS_STA_ID_MSK;366 367 id >>= RX_MDPU_RES_STATUS_STA_ID_SHIFT;368 369 if (!WARN_ON_ONCE(id >= mvm->fw->ucode_capa.num_stations)) {370 sta = rcu_dereference(mvm->fw_id_to_mac_id[id]);371 if (IS_ERR(sta))372 sta = NULL;373 }374 } else if (!is_multicast_ether_addr(hdr->addr2)) {375 /* This is fine since we prevent two stations with the same376 * address from being added.377 */378 sta = ieee80211_find_sta_by_ifaddr(mvm->hw, hdr->addr2, NULL);379 }380 381 if (sta) {382 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);383 struct ieee80211_vif *vif = mvmsta->vif;384 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);385 386 /*387 * Don't even try to decrypt a MCAST frame that was received388 * before the managed vif is authorized, we'd fail anyway.389 */390 if (is_multicast_ether_addr(hdr->addr1) &&391 vif->type == NL80211_IFTYPE_STATION &&392 !mvmvif->authorized &&393 ieee80211_has_protected(hdr->frame_control)) {394 IWL_DEBUG_DROP(mvm, "MCAST before the vif is authorized\n");395 kfree_skb(skb);396 rcu_read_unlock();397 return;398 }399 }400 401 /*402 * drop the packet if it has failed being decrypted by HW403 */404 if (iwl_mvm_set_mac80211_rx_flag(mvm, hdr, rx_status, rx_pkt_status,405 &crypt_len)) {406 IWL_DEBUG_DROP(mvm, "Bad decryption results 0x%08x\n",407 rx_pkt_status);408 kfree_skb(skb);409 rcu_read_unlock();410 return;411 }412 413 if (sta) {414 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);415 struct ieee80211_vif *tx_blocked_vif =416 rcu_dereference(mvm->csa_tx_blocked_vif);417 struct iwl_fw_dbg_trigger_tlv *trig;418 struct ieee80211_vif *vif = mvmsta->vif;419 420 /* We have tx blocked stations (with CS bit). If we heard421 * frames from a blocked station on a new channel we can422 * TX to it again.423 */424 if (unlikely(tx_blocked_vif) && vif == tx_blocked_vif) {425 struct iwl_mvm_vif *mvmvif =426 iwl_mvm_vif_from_mac80211(tx_blocked_vif);427 428 if (mvmvif->csa_target_freq == rx_status->freq)429 iwl_mvm_sta_modify_disable_tx_ap(mvm, sta,430 false);431 }432 433 rs_update_last_rssi(mvm, mvmsta, rx_status);434 435 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt,436 ieee80211_vif_to_wdev(vif),437 FW_DBG_TRIGGER_RSSI);438 439 if (trig && ieee80211_is_beacon(hdr->frame_control)) {440 struct iwl_fw_dbg_trigger_low_rssi *rssi_trig;441 s32 rssi;442 443 rssi_trig = (void *)trig->data;444 rssi = le32_to_cpu(rssi_trig->rssi);445 446 if (rx_status->signal < rssi)447 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,448 NULL);449 }450 451 if (!mvm->tcm.paused && len >= sizeof(*hdr) &&452 !is_multicast_ether_addr(hdr->addr1) &&453 ieee80211_is_data(hdr->frame_control))454 iwl_mvm_rx_handle_tcm(mvm, sta, hdr, len, phy_info,455 rate_n_flags);456 457 if (ieee80211_is_data(hdr->frame_control))458 iwl_mvm_rx_csum(sta, skb, rx_pkt_status);459 }460 rcu_read_unlock();461 462 /* set the preamble flag if appropriate */463 if (phy_info->phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_SHORT_PREAMBLE))464 rx_status->enc_flags |= RX_ENC_FLAG_SHORTPRE;465 466 if (phy_info->phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_AGG)) {467 /*468 * We know which subframes of an A-MPDU belong469 * together since we get a single PHY response470 * from the firmware for all of them471 */472 rx_status->flag |= RX_FLAG_AMPDU_DETAILS;473 rx_status->ampdu_reference = mvm->ampdu_ref;474 }475 476 /* Set up the HT phy flags */477 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK_V1) {478 case RATE_MCS_CHAN_WIDTH_20:479 break;480 case RATE_MCS_CHAN_WIDTH_40:481 rx_status->bw = RATE_INFO_BW_40;482 break;483 case RATE_MCS_CHAN_WIDTH_80:484 rx_status->bw = RATE_INFO_BW_80;485 break;486 case RATE_MCS_CHAN_WIDTH_160:487 rx_status->bw = RATE_INFO_BW_160;488 break;489 }490 if (!(rate_n_flags & RATE_MCS_CCK_MSK_V1) &&491 rate_n_flags & RATE_MCS_SGI_MSK_V1)492 rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI;493 if (rate_n_flags & RATE_HT_MCS_GF_MSK)494 rx_status->enc_flags |= RX_ENC_FLAG_HT_GF;495 if (rate_n_flags & RATE_MCS_LDPC_MSK_V1)496 rx_status->enc_flags |= RX_ENC_FLAG_LDPC;497 if (rate_n_flags & RATE_MCS_HT_MSK_V1) {498 u8 stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >>499 RATE_MCS_STBC_POS;500 rx_status->encoding = RX_ENC_HT;501 rx_status->rate_idx = rate_n_flags & RATE_HT_MCS_INDEX_MSK_V1;502 rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;503 } else if (rate_n_flags & RATE_MCS_VHT_MSK_V1) {504 u8 stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >>505 RATE_MCS_STBC_POS;506 rx_status->nss =507 FIELD_GET(RATE_MCS_NSS_MSK, rate_n_flags) + 1;508 rx_status->rate_idx = rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK;509 rx_status->encoding = RX_ENC_VHT;510 rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;511 if (rate_n_flags & RATE_MCS_BF_MSK)512 rx_status->enc_flags |= RX_ENC_FLAG_BF;513 } else {514 int rate = iwl_mvm_legacy_rate_to_mac80211_idx(rate_n_flags,515 rx_status->band);516 517 if (WARN(rate < 0 || rate > 0xFF,518 "Invalid rate flags 0x%x, band %d,\n",519 rate_n_flags, rx_status->band)) {520 kfree_skb(skb);521 return;522 }523 rx_status->rate_idx = rate;524 }525 526#ifdef CONFIG_IWLWIFI_DEBUGFS527 iwl_mvm_update_frame_stats(mvm, rate_n_flags,528 rx_status->flag & RX_FLAG_AMPDU_DETAILS);529#endif530 531 if (unlikely((ieee80211_is_beacon(hdr->frame_control) ||532 ieee80211_is_probe_resp(hdr->frame_control)) &&533 mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_ENABLED))534 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_FOUND;535 536 if (unlikely(ieee80211_is_beacon(hdr->frame_control) ||537 ieee80211_is_probe_resp(hdr->frame_control)))538 rx_status->boottime_ns = ktime_get_boottime_ns();539 540 iwl_mvm_pass_packet_to_mac80211(mvm, sta, napi, skb, hdr, len,541 crypt_len, rxb);542}543 544struct iwl_mvm_stat_data {545 struct iwl_mvm *mvm;546 __le32 flags;547 __le32 mac_id;548 u8 beacon_filter_average_energy;549 __le32 *beacon_counter;550 u8 *beacon_average_energy;551};552 553struct iwl_mvm_stat_data_all_macs {554 struct iwl_mvm *mvm;555 __le32 flags;556 struct iwl_stats_ntfy_per_mac *per_mac;557};558 559static void iwl_mvm_update_link_sig(struct ieee80211_vif *vif, int sig,560 struct iwl_mvm_vif_link_info *link_info,561 struct ieee80211_bss_conf *bss_conf)562{563 struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(vif)->mvm;564 int thold = bss_conf->cqm_rssi_thold;565 int hyst = bss_conf->cqm_rssi_hyst;566 int last_event;567 s8 exit_esr_thresh;568 569 if (sig == 0) {570 IWL_DEBUG_RX(mvm, "RSSI is 0 - skip signal based decision\n");571 return;572 }573 574 link_info->bf_data.ave_beacon_signal = sig;575 576 /* BT Coex */577 if (link_info->bf_data.bt_coex_min_thold !=578 link_info->bf_data.bt_coex_max_thold) {579 last_event = link_info->bf_data.last_bt_coex_event;580 if (sig > link_info->bf_data.bt_coex_max_thold &&581 (last_event <= link_info->bf_data.bt_coex_min_thold ||582 last_event == 0)) {583 link_info->bf_data.last_bt_coex_event = sig;584 IWL_DEBUG_RX(mvm, "cqm_iterator bt coex high %d\n",585 sig);586 iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_HIGH);587 } else if (sig < link_info->bf_data.bt_coex_min_thold &&588 (last_event >= link_info->bf_data.bt_coex_max_thold ||589 last_event == 0)) {590 link_info->bf_data.last_bt_coex_event = sig;591 IWL_DEBUG_RX(mvm, "cqm_iterator bt coex low %d\n",592 sig);593 iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_LOW);594 }595 }596 597 if (!(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))598 return;599 600 /* CQM Notification */601 last_event = link_info->bf_data.last_cqm_event;602 if (thold && sig < thold && (last_event == 0 ||603 sig < last_event - hyst)) {604 link_info->bf_data.last_cqm_event = sig;605 IWL_DEBUG_RX(mvm, "cqm_iterator cqm low %d\n",606 sig);607 ieee80211_cqm_rssi_notify(608 vif,609 NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,610 sig,611 GFP_KERNEL);612 } else if (sig > thold &&613 (last_event == 0 || sig > last_event + hyst)) {614 link_info->bf_data.last_cqm_event = sig;615 IWL_DEBUG_RX(mvm, "cqm_iterator cqm high %d\n",616 sig);617 ieee80211_cqm_rssi_notify(618 vif,619 NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,620 sig,621 GFP_KERNEL);622 }623 624 /* ESR recalculation */625 if (!vif->cfg.assoc || !ieee80211_vif_is_mld(vif))626 return;627 628 exit_esr_thresh =629 iwl_mvm_get_esr_rssi_thresh(mvm,630 &bss_conf->chanreq.oper,631 true);632 633 if (sig < exit_esr_thresh)634 iwl_mvm_exit_esr(mvm, vif, IWL_MVM_ESR_EXIT_LOW_RSSI,635 iwl_mvm_get_other_link(vif,636 bss_conf->link_id));637}638 639static void iwl_mvm_stat_iterator(void *_data, u8 *mac,640 struct ieee80211_vif *vif)641{642 struct iwl_mvm_stat_data *data = _data;643 int sig = -data->beacon_filter_average_energy;644 u16 id = le32_to_cpu(data->mac_id);645 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);646 u16 vif_id = mvmvif->id;647 648 /* This doesn't need the MAC ID check since it's not taking the649 * data copied into the "data" struct, but rather the data from650 * the notification directly.651 */652 mvmvif->deflink.beacon_stats.num_beacons =653 le32_to_cpu(data->beacon_counter[vif_id]);654 mvmvif->deflink.beacon_stats.avg_signal =655 -data->beacon_average_energy[vif_id];656 657 if (mvmvif->id != id)658 return;659 660 if (vif->type != NL80211_IFTYPE_STATION)661 return;662 663 /* make sure that beacon statistics don't go backwards with TCM664 * request to clear statistics665 */666 if (le32_to_cpu(data->flags) & IWL_STATISTICS_REPLY_FLG_CLEAR)667 mvmvif->deflink.beacon_stats.accu_num_beacons +=668 mvmvif->deflink.beacon_stats.num_beacons;669 670 /* This is used in pre-MLO API so use deflink */671 iwl_mvm_update_link_sig(vif, sig, &mvmvif->deflink, &vif->bss_conf);672}673 674static void iwl_mvm_stat_iterator_all_macs(void *_data, u8 *mac,675 struct ieee80211_vif *vif)676{677 struct iwl_mvm_stat_data_all_macs *data = _data;678 struct iwl_stats_ntfy_per_mac *mac_stats;679 int sig;680 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);681 u16 vif_id = mvmvif->id;682 683 if (WARN_ONCE(vif_id >= MAC_INDEX_AUX, "invalid vif id: %d", vif_id))684 return;685 686 if (vif->type != NL80211_IFTYPE_STATION)687 return;688 689 mac_stats = &data->per_mac[vif_id];690 691 mvmvif->deflink.beacon_stats.num_beacons =692 le32_to_cpu(mac_stats->beacon_counter);693 mvmvif->deflink.beacon_stats.avg_signal =694 -le32_to_cpu(mac_stats->beacon_average_energy);695 696 /* make sure that beacon statistics don't go backwards with TCM697 * request to clear statistics698 */699 if (le32_to_cpu(data->flags) & IWL_STATISTICS_REPLY_FLG_CLEAR)700 mvmvif->deflink.beacon_stats.accu_num_beacons +=701 mvmvif->deflink.beacon_stats.num_beacons;702 703 sig = -le32_to_cpu(mac_stats->beacon_filter_average_energy);704 705 /* This is used in pre-MLO API so use deflink */706 iwl_mvm_update_link_sig(vif, sig, &mvmvif->deflink, &vif->bss_conf);707}708 709static inline void710iwl_mvm_rx_stats_check_trigger(struct iwl_mvm *mvm, struct iwl_rx_packet *pkt)711{712 struct iwl_fw_dbg_trigger_tlv *trig;713 struct iwl_fw_dbg_trigger_stats *trig_stats;714 u32 trig_offset, trig_thold;715 716 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, FW_DBG_TRIGGER_STATS);717 if (!trig)718 return;719 720 trig_stats = (void *)trig->data;721 722 trig_offset = le32_to_cpu(trig_stats->stop_offset);723 trig_thold = le32_to_cpu(trig_stats->stop_threshold);724 725 if (WARN_ON_ONCE(trig_offset >= iwl_rx_packet_payload_len(pkt)))726 return;727 728 if (le32_to_cpup((__le32 *) (pkt->data + trig_offset)) < trig_thold)729 return;730 731 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, NULL);732}733 734static void iwl_mvm_stats_energy_iter(void *_data,735 struct ieee80211_sta *sta)736{737 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);738 u8 *energy = _data;739 u32 sta_id = mvmsta->deflink.sta_id;740 741 if (WARN_ONCE(sta_id >= IWL_STATION_COUNT_MAX, "sta_id %d >= %d",742 sta_id, IWL_STATION_COUNT_MAX))743 return;744 745 if (energy[sta_id])746 mvmsta->deflink.avg_energy = energy[sta_id];747 748}749 750static void751iwl_mvm_update_tcm_from_stats(struct iwl_mvm *mvm, __le32 *air_time_le,752 __le32 *rx_bytes_le)753{754 int i;755 756 spin_lock(&mvm->tcm.lock);757 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) {758 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[i];759 u32 rx_bytes = le32_to_cpu(rx_bytes_le[i]);760 u32 airtime = le32_to_cpu(air_time_le[i]);761 762 mdata->rx.airtime += airtime;763 mdata->uapsd_nonagg_detect.rx_bytes += rx_bytes;764 if (airtime) {765 /* re-init every time to store rate from FW */766 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate);767 ewma_rate_add(&mdata->uapsd_nonagg_detect.rate,768 rx_bytes * 8 / airtime);769 }770 }771 spin_unlock(&mvm->tcm.lock);772}773 774static void iwl_mvm_handle_per_phy_stats(struct iwl_mvm *mvm,775 struct iwl_stats_ntfy_per_phy *per_phy)776{777 int i;778 779 for (i = 0; i < NUM_PHY_CTX; i++) {780 if (!mvm->phy_ctxts[i].ref)781 continue;782 mvm->phy_ctxts[i].channel_load_by_us =783 le32_to_cpu(per_phy[i].channel_load_by_us);784 }785}786 787static void788iwl_mvm_stats_ver_15(struct iwl_mvm *mvm,789 struct iwl_statistics_operational_ntfy *stats)790{791 struct iwl_mvm_stat_data_all_macs data = {792 .mvm = mvm,793 .flags = stats->flags,794 .per_mac = stats->per_mac,795 };796 797 ieee80211_iterate_active_interfaces(mvm->hw,798 IEEE80211_IFACE_ITER_NORMAL,799 iwl_mvm_stat_iterator_all_macs,800 &data);801 iwl_mvm_handle_per_phy_stats(mvm, stats->per_phy);802}803 804static void805iwl_mvm_stats_ver_14(struct iwl_mvm *mvm,806 struct iwl_statistics_operational_ntfy_ver_14 *stats)807{808 struct iwl_mvm_stat_data data = {809 .mvm = mvm,810 };811 812 u8 beacon_average_energy[MAC_INDEX_AUX];813 __le32 flags;814 int i;815 816 flags = stats->flags;817 818 data.mac_id = stats->mac_id;819 data.beacon_filter_average_energy =820 le32_to_cpu(stats->beacon_filter_average_energy);821 data.flags = flags;822 data.beacon_counter = stats->beacon_counter;823 824 for (i = 0; i < ARRAY_SIZE(beacon_average_energy); i++)825 beacon_average_energy[i] =826 le32_to_cpu(stats->beacon_average_energy[i]);827 828 data.beacon_average_energy = beacon_average_energy;829 830 ieee80211_iterate_active_interfaces(mvm->hw,831 IEEE80211_IFACE_ITER_NORMAL,832 iwl_mvm_stat_iterator,833 &data);834}835 836static bool iwl_mvm_verify_stats_len(struct iwl_mvm *mvm,837 struct iwl_rx_packet *pkt,838 u32 expected_size)839{840 struct iwl_statistics_ntfy_hdr *hdr;841 842 if (WARN_ONCE(iwl_rx_packet_payload_len(pkt) < expected_size,843 "received invalid statistics size (%d)!, expected_size: %d\n",844 iwl_rx_packet_payload_len(pkt), expected_size))845 return false;846 847 hdr = (void *)&pkt->data;848 849 if (WARN_ONCE((hdr->type & IWL_STATISTICS_TYPE_MSK) != FW_STATISTICS_OPERATIONAL ||850 hdr->version !=851 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, STATISTICS_NOTIFICATION, 0),852 "received unsupported hdr type %d, version %d\n",853 hdr->type, hdr->version))854 return false;855 856 if (WARN_ONCE(le16_to_cpu(hdr->size) != expected_size,857 "received invalid statistics size in header (%d)!, expected_size: %d\n",858 le16_to_cpu(hdr->size), expected_size))859 return false;860 861 return true;862}863 864static void865iwl_mvm_stat_iterator_all_links(struct iwl_mvm *mvm,866 struct iwl_stats_ntfy_per_link *per_link)867{868 u32 air_time[MAC_INDEX_AUX] = {};869 u32 rx_bytes[MAC_INDEX_AUX] = {};870 int fw_link_id;871 872 for (fw_link_id = 0; fw_link_id < ARRAY_SIZE(mvm->link_id_to_link_conf);873 fw_link_id++) {874 struct iwl_stats_ntfy_per_link *link_stats;875 struct ieee80211_bss_conf *bss_conf;876 struct iwl_mvm_vif *mvmvif;877 struct iwl_mvm_vif_link_info *link_info;878 int link_id;879 int sig;880 881 bss_conf = iwl_mvm_rcu_fw_link_id_to_link_conf(mvm, fw_link_id,882 false);883 if (!bss_conf)884 continue;885 886 if (bss_conf->vif->type != NL80211_IFTYPE_STATION)887 continue;888 889 link_id = bss_conf->link_id;890 if (link_id >= ARRAY_SIZE(mvmvif->link))891 continue;892 893 mvmvif = iwl_mvm_vif_from_mac80211(bss_conf->vif);894 link_info = mvmvif->link[link_id];895 if (!link_info)896 continue;897 898 link_stats = &per_link[fw_link_id];899 900 link_info->beacon_stats.num_beacons =901 le32_to_cpu(link_stats->beacon_counter);902 903 /* we basically just use the u8 to store 8 bits and then treat904 * it as a s8 whenever we take it out to a different type.905 */906 link_info->beacon_stats.avg_signal =907 -le32_to_cpu(link_stats->beacon_average_energy);908 909 if (link_info->phy_ctxt &&910 link_info->phy_ctxt->channel->band == NL80211_BAND_2GHZ)911 iwl_mvm_bt_coex_update_link_esr(mvm, bss_conf->vif,912 link_id);913 914 /* make sure that beacon statistics don't go backwards with TCM915 * request to clear statistics916 */917 if (mvm->statistics_clear)918 mvmvif->link[link_id]->beacon_stats.accu_num_beacons +=919 mvmvif->link[link_id]->beacon_stats.num_beacons;920 921 sig = -le32_to_cpu(link_stats->beacon_filter_average_energy);922 iwl_mvm_update_link_sig(bss_conf->vif, sig, link_info,923 bss_conf);924 925 if (WARN_ONCE(mvmvif->id >= MAC_INDEX_AUX,926 "invalid mvmvif id: %d", mvmvif->id))927 continue;928 929 air_time[mvmvif->id] +=930 le32_to_cpu(per_link[fw_link_id].air_time);931 rx_bytes[mvmvif->id] +=932 le32_to_cpu(per_link[fw_link_id].rx_bytes);933 }934 935 /* Don't update in case the statistics are not cleared, since936 * we will end up counting twice the same airtime, once in TCM937 * request and once in statistics notification.938 */939 if (mvm->statistics_clear) {940 __le32 air_time_le[MAC_INDEX_AUX];941 __le32 rx_bytes_le[MAC_INDEX_AUX];942 int vif_id;943 944 for (vif_id = 0; vif_id < ARRAY_SIZE(air_time_le); vif_id++) {945 air_time_le[vif_id] = cpu_to_le32(air_time[vif_id]);946 rx_bytes_le[vif_id] = cpu_to_le32(rx_bytes[vif_id]);947 }948 949 iwl_mvm_update_tcm_from_stats(mvm, air_time_le, rx_bytes_le);950 }951}952 953#define SEC_LINK_MIN_PERC 10954#define SEC_LINK_MIN_TX 3000955#define SEC_LINK_MIN_RX 400956 957static void iwl_mvm_update_esr_mode_tpt(struct iwl_mvm *mvm)958{959 struct ieee80211_vif *bss_vif = iwl_mvm_get_bss_vif(mvm);960 struct iwl_mvm_vif *mvmvif;961 struct iwl_mvm_sta *mvmsta;962 unsigned long total_tx = 0, total_rx = 0;963 unsigned long sec_link_tx = 0, sec_link_rx = 0;964 u8 sec_link_tx_perc, sec_link_rx_perc;965 u8 sec_link;966 967 lockdep_assert_held(&mvm->mutex);968 969 if (IS_ERR_OR_NULL(bss_vif))970 return;971 972 mvmvif = iwl_mvm_vif_from_mac80211(bss_vif);973 974 if (!mvmvif->esr_active || !mvmvif->ap_sta)975 return;976 977 mvmsta = iwl_mvm_sta_from_mac80211(mvmvif->ap_sta);978 /* We only count for the AP sta in a MLO connection */979 if (!mvmsta->mpdu_counters)980 return;981 982 /* Get the FW ID of the secondary link */983 sec_link = iwl_mvm_get_other_link(bss_vif,984 iwl_mvm_get_primary_link(bss_vif));985 if (WARN_ON(!mvmvif->link[sec_link]))986 return;987 sec_link = mvmvif->link[sec_link]->fw_link_id;988 989 /* Sum up RX and TX MPDUs from the different queues/links */990 for (int q = 0; q < mvm->trans->num_rx_queues; q++) {991 spin_lock_bh(&mvmsta->mpdu_counters[q].lock);992 993 /* The link IDs that doesn't exist will contain 0 */994 for (int link = 0; link < IWL_FW_MAX_LINK_ID; link++) {995 total_tx += mvmsta->mpdu_counters[q].per_link[link].tx;996 total_rx += mvmsta->mpdu_counters[q].per_link[link].rx;997 }998 999 sec_link_tx += mvmsta->mpdu_counters[q].per_link[sec_link].tx;1000 sec_link_rx += mvmsta->mpdu_counters[q].per_link[sec_link].rx;1001 1002 /*1003 * In EMLSR we have statistics every 5 seconds, so we can reset1004 * the counters upon every statistics notification.1005 */1006 memset(mvmsta->mpdu_counters[q].per_link, 0,1007 sizeof(mvmsta->mpdu_counters[q].per_link));1008 1009 spin_unlock_bh(&mvmsta->mpdu_counters[q].lock);1010 }1011 1012 IWL_DEBUG_INFO(mvm, "total Tx MPDUs: %ld. total Rx MPDUs: %ld\n",1013 total_tx, total_rx);1014 1015 /* If we don't have enough MPDUs - exit EMLSR */1016 if (total_tx < IWL_MVM_ENTER_ESR_TPT_THRESH &&1017 total_rx < IWL_MVM_ENTER_ESR_TPT_THRESH) {1018 iwl_mvm_block_esr(mvm, bss_vif, IWL_MVM_ESR_BLOCKED_TPT,1019 iwl_mvm_get_primary_link(bss_vif));1020 return;1021 }1022 1023 IWL_DEBUG_INFO(mvm, "Secondary Link %d: Tx MPDUs: %ld. Rx MPDUs: %ld\n",1024 sec_link, sec_link_tx, sec_link_rx);1025 1026 /* Calculate the percentage of the secondary link TX/RX */1027 sec_link_tx_perc = total_tx ? sec_link_tx * 100 / total_tx : 0;1028 sec_link_rx_perc = total_rx ? sec_link_rx * 100 / total_rx : 0;1029 1030 /*1031 * The TX/RX percentage is checked only if it exceeds the required1032 * minimum. In addition, RX is checked only if the TX check failed.1033 */1034 if ((total_tx > SEC_LINK_MIN_TX &&1035 sec_link_tx_perc < SEC_LINK_MIN_PERC) ||1036 (total_rx > SEC_LINK_MIN_RX &&1037 sec_link_rx_perc < SEC_LINK_MIN_PERC))1038 iwl_mvm_exit_esr(mvm, bss_vif, IWL_MVM_ESR_EXIT_LINK_USAGE,1039 iwl_mvm_get_primary_link(bss_vif));1040}1041 1042void iwl_mvm_handle_rx_system_oper_stats(struct iwl_mvm *mvm,1043 struct iwl_rx_cmd_buffer *rxb)1044{1045 u8 average_energy[IWL_STATION_COUNT_MAX];1046 struct iwl_rx_packet *pkt = rxb_addr(rxb);1047 struct iwl_system_statistics_notif_oper *stats;1048 int i;1049 u32 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, STATISTICS_GROUP,1050 STATISTICS_OPER_NOTIF, 0);1051 1052 if (notif_ver != 3) {1053 IWL_FW_CHECK_FAILED(mvm,1054 "Oper stats notif ver %d is not supported\n",1055 notif_ver);1056 return;1057 }1058 1059 stats = (void *)&pkt->data;1060 iwl_mvm_stat_iterator_all_links(mvm, stats->per_link);1061 1062 for (i = 0; i < ARRAY_SIZE(average_energy); i++)1063 average_energy[i] =1064 le32_to_cpu(stats->per_sta[i].average_energy);1065 1066 ieee80211_iterate_stations_atomic(mvm->hw, iwl_mvm_stats_energy_iter,1067 average_energy);1068 iwl_mvm_handle_per_phy_stats(mvm, stats->per_phy);1069 1070 iwl_mvm_update_esr_mode_tpt(mvm);1071}1072 1073void iwl_mvm_handle_rx_system_oper_part1_stats(struct iwl_mvm *mvm,1074 struct iwl_rx_cmd_buffer *rxb)1075{1076 struct iwl_rx_packet *pkt = rxb_addr(rxb);1077 struct iwl_system_statistics_part1_notif_oper *part1_stats;1078 int i;1079 u32 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, STATISTICS_GROUP,1080 STATISTICS_OPER_PART1_NOTIF, 0);1081 1082 if (notif_ver != 4) {1083 IWL_FW_CHECK_FAILED(mvm,1084 "Part1 stats notif ver %d is not supported\n",1085 notif_ver);1086 return;1087 }1088 1089 part1_stats = (void *)&pkt->data;1090 mvm->radio_stats.rx_time = 0;1091 mvm->radio_stats.tx_time = 0;1092 for (i = 0; i < ARRAY_SIZE(part1_stats->per_link); i++) {1093 mvm->radio_stats.rx_time +=1094 le64_to_cpu(part1_stats->per_link[i].rx_time);1095 mvm->radio_stats.tx_time +=1096 le64_to_cpu(part1_stats->per_link[i].tx_time);1097 }1098}1099 1100static void1101iwl_mvm_handle_rx_statistics_tlv(struct iwl_mvm *mvm,1102 struct iwl_rx_packet *pkt)1103{1104 u8 average_energy[IWL_STATION_COUNT_MAX];1105 __le32 air_time[MAC_INDEX_AUX];1106 __le32 rx_bytes[MAC_INDEX_AUX];1107 __le32 flags = 0;1108 int i;1109 u32 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,1110 STATISTICS_NOTIFICATION, 0);1111 1112 if (WARN_ONCE(notif_ver > 15,1113 "invalid statistics version id: %d\n", notif_ver))1114 return;1115 1116 if (notif_ver == 14) {1117 struct iwl_statistics_operational_ntfy_ver_14 *stats =1118 (void *)pkt->data;1119 1120 if (!iwl_mvm_verify_stats_len(mvm, pkt, sizeof(*stats)))1121 return;1122 1123 iwl_mvm_stats_ver_14(mvm, stats);1124 1125 flags = stats->flags;1126 mvm->radio_stats.rx_time = le64_to_cpu(stats->rx_time);1127 mvm->radio_stats.tx_time = le64_to_cpu(stats->tx_time);1128 mvm->radio_stats.on_time_rf = le64_to_cpu(stats->on_time_rf);1129 mvm->radio_stats.on_time_scan =1130 le64_to_cpu(stats->on_time_scan);1131 1132 for (i = 0; i < ARRAY_SIZE(average_energy); i++)1133 average_energy[i] = le32_to_cpu(stats->average_energy[i]);1134 1135 for (i = 0; i < ARRAY_SIZE(air_time); i++) {1136 air_time[i] = stats->air_time[i];1137 rx_bytes[i] = stats->rx_bytes[i];1138 }1139 }1140 1141 if (notif_ver == 15) {1142 struct iwl_statistics_operational_ntfy *stats =1143 (void *)pkt->data;1144 1145 if (!iwl_mvm_verify_stats_len(mvm, pkt, sizeof(*stats)))1146 return;1147 1148 iwl_mvm_stats_ver_15(mvm, stats);1149 1150 flags = stats->flags;1151 mvm->radio_stats.rx_time = le64_to_cpu(stats->rx_time);1152 mvm->radio_stats.tx_time = le64_to_cpu(stats->tx_time);1153 mvm->radio_stats.on_time_rf = le64_to_cpu(stats->on_time_rf);1154 mvm->radio_stats.on_time_scan =1155 le64_to_cpu(stats->on_time_scan);1156 1157 for (i = 0; i < ARRAY_SIZE(average_energy); i++)1158 average_energy[i] =1159 le32_to_cpu(stats->per_sta[i].average_energy);1160 1161 for (i = 0; i < ARRAY_SIZE(air_time); i++) {1162 air_time[i] = stats->per_mac[i].air_time;1163 rx_bytes[i] = stats->per_mac[i].rx_bytes;1164 }1165 }1166 1167 iwl_mvm_rx_stats_check_trigger(mvm, pkt);1168 1169 ieee80211_iterate_stations_atomic(mvm->hw, iwl_mvm_stats_energy_iter,1170 average_energy);1171 /*1172 * Don't update in case the statistics are not cleared, since1173 * we will end up counting twice the same airtime, once in TCM1174 * request and once in statistics notification.1175 */1176 if (le32_to_cpu(flags) & IWL_STATISTICS_REPLY_FLG_CLEAR)1177 iwl_mvm_update_tcm_from_stats(mvm, air_time, rx_bytes);1178}1179 1180void iwl_mvm_handle_rx_statistics(struct iwl_mvm *mvm,1181 struct iwl_rx_packet *pkt)1182{1183 struct iwl_mvm_stat_data data = {1184 .mvm = mvm,1185 };1186 __le32 *bytes, *air_time, flags;1187 int expected_size;1188 u8 *energy;1189 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,1190 WIDE_ID(SYSTEM_GROUP,1191 SYSTEM_STATISTICS_CMD),1192 IWL_FW_CMD_VER_UNKNOWN);1193 1194 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN)1195 return;1196 1197 /* From ver 14 and up we use TLV statistics format */1198 if (iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,1199 STATISTICS_NOTIFICATION, 0) >= 14)1200 return iwl_mvm_handle_rx_statistics_tlv(mvm, pkt);1201 1202 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {1203 if (iwl_mvm_has_new_rx_api(mvm))1204 expected_size = sizeof(struct iwl_notif_statistics_v11);1205 else1206 expected_size = sizeof(struct iwl_notif_statistics_v10);1207 } else {1208 expected_size = sizeof(struct iwl_notif_statistics);1209 }1210 1211 if (WARN_ONCE(iwl_rx_packet_payload_len(pkt) != expected_size,1212 "received invalid statistics size (%d)!\n",1213 iwl_rx_packet_payload_len(pkt)))1214 return;1215 1216 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {1217 struct iwl_notif_statistics_v11 *stats = (void *)&pkt->data;1218 1219 data.mac_id = stats->rx.general.mac_id;1220 data.beacon_filter_average_energy =1221 stats->general.common.beacon_filter_average_energy;1222 1223 mvm->rx_stats_v3 = stats->rx;1224 1225 mvm->radio_stats.rx_time =1226 le64_to_cpu(stats->general.common.rx_time);1227 mvm->radio_stats.tx_time =1228 le64_to_cpu(stats->general.common.tx_time);1229 mvm->radio_stats.on_time_rf =1230 le64_to_cpu(stats->general.common.on_time_rf);1231 mvm->radio_stats.on_time_scan =1232 le64_to_cpu(stats->general.common.on_time_scan);1233 1234 data.beacon_counter = stats->general.beacon_counter;1235 data.beacon_average_energy =1236 stats->general.beacon_average_energy;1237 flags = stats->flag;1238 } else {1239 struct iwl_notif_statistics *stats = (void *)&pkt->data;1240 1241 data.mac_id = stats->rx.general.mac_id;1242 data.beacon_filter_average_energy =1243 stats->general.common.beacon_filter_average_energy;1244 1245 mvm->rx_stats = stats->rx;1246 1247 mvm->radio_stats.rx_time =1248 le64_to_cpu(stats->general.common.rx_time);1249 mvm->radio_stats.tx_time =1250 le64_to_cpu(stats->general.common.tx_time);1251 mvm->radio_stats.on_time_rf =1252 le64_to_cpu(stats->general.common.on_time_rf);1253 mvm->radio_stats.on_time_scan =1254 le64_to_cpu(stats->general.common.on_time_scan);1255 1256 data.beacon_counter = stats->general.beacon_counter;1257 data.beacon_average_energy =1258 stats->general.beacon_average_energy;1259 flags = stats->flag;1260 }1261 data.flags = flags;1262 1263 iwl_mvm_rx_stats_check_trigger(mvm, pkt);1264 1265 ieee80211_iterate_active_interfaces(mvm->hw,1266 IEEE80211_IFACE_ITER_NORMAL,1267 iwl_mvm_stat_iterator,1268 &data);1269 1270 if (!iwl_mvm_has_new_rx_api(mvm))1271 return;1272 1273 if (!iwl_mvm_has_new_rx_stats_api(mvm)) {1274 struct iwl_notif_statistics_v11 *v11 = (void *)&pkt->data;1275 1276 energy = (void *)&v11->load_stats.avg_energy;1277 bytes = (void *)&v11->load_stats.byte_count;1278 air_time = (void *)&v11->load_stats.air_time;1279 } else {1280 struct iwl_notif_statistics *stats = (void *)&pkt->data;1281 1282 energy = (void *)&stats->load_stats.avg_energy;1283 bytes = (void *)&stats->load_stats.byte_count;1284 air_time = (void *)&stats->load_stats.air_time;1285 }1286 ieee80211_iterate_stations_atomic(mvm->hw, iwl_mvm_stats_energy_iter,1287 energy);1288 1289 /*1290 * Don't update in case the statistics are not cleared, since1291 * we will end up counting twice the same airtime, once in TCM1292 * request and once in statistics notification.1293 */1294 if (le32_to_cpu(flags) & IWL_STATISTICS_REPLY_FLG_CLEAR)1295 iwl_mvm_update_tcm_from_stats(mvm, air_time, bytes);1296 1297}1298 1299void iwl_mvm_rx_statistics(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)1300{1301 iwl_mvm_handle_rx_statistics(mvm, rxb_addr(rxb));1302}1303 1304void iwl_mvm_window_status_notif(struct iwl_mvm *mvm,1305 struct iwl_rx_cmd_buffer *rxb)1306{1307 struct iwl_rx_packet *pkt = rxb_addr(rxb);1308 struct iwl_ba_window_status_notif *notif = (void *)pkt->data;1309 int i;1310 1311 BUILD_BUG_ON(ARRAY_SIZE(notif->ra_tid) != BA_WINDOW_STREAMS_MAX);1312 BUILD_BUG_ON(ARRAY_SIZE(notif->mpdu_rx_count) != BA_WINDOW_STREAMS_MAX);1313 BUILD_BUG_ON(ARRAY_SIZE(notif->bitmap) != BA_WINDOW_STREAMS_MAX);1314 BUILD_BUG_ON(ARRAY_SIZE(notif->start_seq_num) != BA_WINDOW_STREAMS_MAX);1315 1316 rcu_read_lock();1317 for (i = 0; i < BA_WINDOW_STREAMS_MAX; i++) {1318 struct ieee80211_sta *sta;1319 u8 sta_id, tid;1320 u64 bitmap;1321 u32 ssn;1322 u16 ratid;1323 u16 received_mpdu;1324 1325 ratid = le16_to_cpu(notif->ra_tid[i]);1326 /* check that this TID is valid */1327 if (!(ratid & BA_WINDOW_STATUS_VALID_MSK))1328 continue;1329 1330 received_mpdu = le16_to_cpu(notif->mpdu_rx_count[i]);1331 if (received_mpdu == 0)1332 continue;1333 1334 tid = ratid & BA_WINDOW_STATUS_TID_MSK;1335 /* get the station */1336 sta_id = (ratid & BA_WINDOW_STATUS_STA_ID_MSK)1337 >> BA_WINDOW_STATUS_STA_ID_POS;1338 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);1339 if (IS_ERR_OR_NULL(sta))1340 continue;1341 bitmap = le64_to_cpu(notif->bitmap[i]);1342 ssn = le32_to_cpu(notif->start_seq_num[i]);1343 1344 /* update mac80211 with the bitmap for the reordering buffer */1345 ieee80211_mark_rx_ba_filtered_frames(sta, tid, ssn, bitmap,1346 received_mpdu);1347 }1348 rcu_read_unlock();1349}1350