1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2024 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <asm/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 handler 16 * 17 * Copies the phy information in mvm->last_phy_info, it will be used when the 18 * actual data will come from the fw in the next packet. 19 */ 20 void 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_DEBUGFS 32 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 #endif 38 } 39 40 /* 41 * iwl_mvm_pass_packet_to_mac80211 - builds the packet for mac80211 42 * 43 * Adds the rxb to a new skb and give it to mac80211 44 */ 45 static 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 we 59 * want the *end* of it, which is going to be the start of the IP 60 * header, to be aligned when it gets pulled in. 61 * The beginning of the skb->data is aligned on at least a 4-byte 62 * boundary after allocation. Everything here is aligned at least 63 * on a 2-byte boundary so we can just take hdrlen & 3 and pad by 64 * 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, and 70 * an additional 8 bytes for SNAP/ethertype, see below) so that 71 * splice() or TCP coalesce are more efficient. 72 * 73 * Since, in addition, ieee80211_data_to_8023() always pull in at 74 * least 8 bytes (possibly more for mesh) we can do the same here 75 * to save the cost of doing it later. That still doesn't pull in 76 * the actual IP header since the typical case has a SNAP header. 77 * If the latter changes (there are efforts in the standards group 78 * 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 API 98 * values are reported by the fw as positive values - need to negate 99 * to obtain their dBM. Account for missing antennas by replacing 0 100 * values by -256dBm: practically 0 power and a non-feasible 8 bit value. 101 */ 102 static 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 format 132 * @mvm: the mvm object 133 * @hdr: 80211 header 134 * @stats: status in mac80211's format 135 * @rx_pkt_status: status coming from fw 136 * 137 * returns non 0 value if the packet should be dropped 138 */ 139 static 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 } 198 199 static 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 } 269 270 static 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 handler 285 * 286 * Handles the actual data of the Rx packet from the fw 287 */ 288 void 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 once 322 * 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 mode 334 * (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 same 376 * 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 received 388 * 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 HW 403 */ 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 heard 421 * frames from a blocked station on a new channel we can 422 * 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 belong 469 * together since we get a single PHY response 470 * from the firmware for all of them 471 */ 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_DEBUGFS 527 iwl_mvm_update_frame_stats(mvm, rate_n_flags, 528 rx_status->flag & RX_FLAG_AMPDU_DETAILS); 529 #endif 530 531 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 } 543 544 struct 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 }; 552 553 struct iwl_mvm_stat_data_all_macs { 554 struct iwl_mvm *mvm; 555 __le32 flags; 556 struct iwl_stats_ntfy_per_mac *per_mac; 557 }; 558 559 static void iwl_mvm_update_vif_sig(struct ieee80211_vif *vif, int sig, 560 struct iwl_mvm_vif_link_info *link_info) 561 { 562 struct iwl_mvm *mvm = iwl_mvm_vif_from_mac80211(vif)->mvm; 563 struct ieee80211_bss_conf *bss_conf = 564 iwl_mvm_rcu_fw_link_id_to_link_conf(mvm, link_info->fw_link_id, 565 false); 566 int thold = bss_conf->cqm_rssi_thold; 567 int hyst = bss_conf->cqm_rssi_hyst; 568 int last_event; 569 570 if (sig == 0) { 571 IWL_DEBUG_RX(mvm, "RSSI is 0 - skip signal based decision\n"); 572 return; 573 } 574 575 link_info->bf_data.ave_beacon_signal = sig; 576 577 /* BT Coex */ 578 if (link_info->bf_data.bt_coex_min_thold != 579 link_info->bf_data.bt_coex_max_thold) { 580 last_event = link_info->bf_data.last_bt_coex_event; 581 if (sig > link_info->bf_data.bt_coex_max_thold && 582 (last_event <= link_info->bf_data.bt_coex_min_thold || 583 last_event == 0)) { 584 link_info->bf_data.last_bt_coex_event = sig; 585 IWL_DEBUG_RX(mvm, "cqm_iterator bt coex high %d\n", 586 sig); 587 iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_HIGH); 588 } else if (sig < link_info->bf_data.bt_coex_min_thold && 589 (last_event >= link_info->bf_data.bt_coex_max_thold || 590 last_event == 0)) { 591 link_info->bf_data.last_bt_coex_event = sig; 592 IWL_DEBUG_RX(mvm, "cqm_iterator bt coex low %d\n", 593 sig); 594 iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_LOW); 595 } 596 } 597 598 if (!(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 599 return; 600 601 /* CQM Notification */ 602 last_event = link_info->bf_data.last_cqm_event; 603 if (thold && sig < thold && (last_event == 0 || 604 sig < last_event - hyst)) { 605 link_info->bf_data.last_cqm_event = sig; 606 IWL_DEBUG_RX(mvm, "cqm_iterator cqm low %d\n", 607 sig); 608 ieee80211_cqm_rssi_notify( 609 vif, 610 NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW, 611 sig, 612 GFP_KERNEL); 613 } else if (sig > thold && 614 (last_event == 0 || sig > last_event + hyst)) { 615 link_info->bf_data.last_cqm_event = sig; 616 IWL_DEBUG_RX(mvm, "cqm_iterator cqm high %d\n", 617 sig); 618 ieee80211_cqm_rssi_notify( 619 vif, 620 NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH, 621 sig, 622 GFP_KERNEL); 623 } 624 } 625 626 static void iwl_mvm_stat_iterator(void *_data, u8 *mac, 627 struct ieee80211_vif *vif) 628 { 629 struct iwl_mvm_stat_data *data = _data; 630 int sig = -data->beacon_filter_average_energy; 631 u16 id = le32_to_cpu(data->mac_id); 632 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 633 u16 vif_id = mvmvif->id; 634 635 /* This doesn't need the MAC ID check since it's not taking the 636 * data copied into the "data" struct, but rather the data from 637 * the notification directly. 638 */ 639 mvmvif->deflink.beacon_stats.num_beacons = 640 le32_to_cpu(data->beacon_counter[vif_id]); 641 mvmvif->deflink.beacon_stats.avg_signal = 642 -data->beacon_average_energy[vif_id]; 643 644 if (mvmvif->id != id) 645 return; 646 647 if (vif->type != NL80211_IFTYPE_STATION) 648 return; 649 650 /* make sure that beacon statistics don't go backwards with TCM 651 * request to clear statistics 652 */ 653 if (le32_to_cpu(data->flags) & IWL_STATISTICS_REPLY_FLG_CLEAR) 654 mvmvif->deflink.beacon_stats.accu_num_beacons += 655 mvmvif->deflink.beacon_stats.num_beacons; 656 657 /* This is used in pre-MLO API so use deflink */ 658 iwl_mvm_update_vif_sig(vif, sig, &mvmvif->deflink); 659 } 660 661 static void iwl_mvm_stat_iterator_all_macs(void *_data, u8 *mac, 662 struct ieee80211_vif *vif) 663 { 664 struct iwl_mvm_stat_data_all_macs *data = _data; 665 struct iwl_stats_ntfy_per_mac *mac_stats; 666 int sig; 667 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 668 u16 vif_id = mvmvif->id; 669 670 if (WARN_ONCE(vif_id >= MAC_INDEX_AUX, "invalid vif id: %d", vif_id)) 671 return; 672 673 if (vif->type != NL80211_IFTYPE_STATION) 674 return; 675 676 mac_stats = &data->per_mac[vif_id]; 677 678 mvmvif->deflink.beacon_stats.num_beacons = 679 le32_to_cpu(mac_stats->beacon_counter); 680 mvmvif->deflink.beacon_stats.avg_signal = 681 -le32_to_cpu(mac_stats->beacon_average_energy); 682 683 /* make sure that beacon statistics don't go backwards with TCM 684 * request to clear statistics 685 */ 686 if (le32_to_cpu(data->flags) & IWL_STATISTICS_REPLY_FLG_CLEAR) 687 mvmvif->deflink.beacon_stats.accu_num_beacons += 688 mvmvif->deflink.beacon_stats.num_beacons; 689 690 sig = -le32_to_cpu(mac_stats->beacon_filter_average_energy); 691 692 /* This is used in pre-MLO API so use deflink */ 693 iwl_mvm_update_vif_sig(vif, sig, &mvmvif->deflink); 694 } 695 696 static inline void 697 iwl_mvm_rx_stats_check_trigger(struct iwl_mvm *mvm, struct iwl_rx_packet *pkt) 698 { 699 struct iwl_fw_dbg_trigger_tlv *trig; 700 struct iwl_fw_dbg_trigger_stats *trig_stats; 701 u32 trig_offset, trig_thold; 702 703 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, FW_DBG_TRIGGER_STATS); 704 if (!trig) 705 return; 706 707 trig_stats = (void *)trig->data; 708 709 trig_offset = le32_to_cpu(trig_stats->stop_offset); 710 trig_thold = le32_to_cpu(trig_stats->stop_threshold); 711 712 if (WARN_ON_ONCE(trig_offset >= iwl_rx_packet_payload_len(pkt))) 713 return; 714 715 if (le32_to_cpup((__le32 *) (pkt->data + trig_offset)) < trig_thold) 716 return; 717 718 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, NULL); 719 } 720 721 static void iwl_mvm_stats_energy_iter(void *_data, 722 struct ieee80211_sta *sta) 723 { 724 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 725 u8 *energy = _data; 726 u32 sta_id = mvmsta->deflink.sta_id; 727 728 if (WARN_ONCE(sta_id >= IWL_MVM_STATION_COUNT_MAX, "sta_id %d >= %d", 729 sta_id, IWL_MVM_STATION_COUNT_MAX)) 730 return; 731 732 if (energy[sta_id]) 733 mvmsta->deflink.avg_energy = energy[sta_id]; 734 735 } 736 737 static void 738 iwl_mvm_update_tcm_from_stats(struct iwl_mvm *mvm, __le32 *air_time_le, 739 __le32 *rx_bytes_le) 740 { 741 int i; 742 743 spin_lock(&mvm->tcm.lock); 744 for (i = 0; i < NUM_MAC_INDEX_DRIVER; i++) { 745 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[i]; 746 u32 rx_bytes = le32_to_cpu(rx_bytes_le[i]); 747 u32 airtime = le32_to_cpu(air_time_le[i]); 748 749 mdata->rx.airtime += airtime; 750 mdata->uapsd_nonagg_detect.rx_bytes += rx_bytes; 751 if (airtime) { 752 /* re-init every time to store rate from FW */ 753 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 754 ewma_rate_add(&mdata->uapsd_nonagg_detect.rate, 755 rx_bytes * 8 / airtime); 756 } 757 } 758 spin_unlock(&mvm->tcm.lock); 759 } 760 761 static void iwl_mvm_handle_per_phy_stats(struct iwl_mvm *mvm, 762 struct iwl_stats_ntfy_per_phy *per_phy) 763 { 764 int i; 765 766 for (i = 0; i < NUM_PHY_CTX; i++) { 767 if (!mvm->phy_ctxts[i].ref) 768 continue; 769 mvm->phy_ctxts[i].channel_load_by_us = 770 le32_to_cpu(per_phy[i].channel_load_by_us); 771 } 772 } 773 774 static void 775 iwl_mvm_stats_ver_15(struct iwl_mvm *mvm, 776 struct iwl_statistics_operational_ntfy *stats) 777 { 778 struct iwl_mvm_stat_data_all_macs data = { 779 .mvm = mvm, 780 .flags = stats->flags, 781 .per_mac = stats->per_mac, 782 }; 783 784 ieee80211_iterate_active_interfaces(mvm->hw, 785 IEEE80211_IFACE_ITER_NORMAL, 786 iwl_mvm_stat_iterator_all_macs, 787 &data); 788 iwl_mvm_handle_per_phy_stats(mvm, stats->per_phy); 789 } 790 791 static void 792 iwl_mvm_stats_ver_14(struct iwl_mvm *mvm, 793 struct iwl_statistics_operational_ntfy_ver_14 *stats) 794 { 795 struct iwl_mvm_stat_data data = { 796 .mvm = mvm, 797 }; 798 799 u8 beacon_average_energy[MAC_INDEX_AUX]; 800 __le32 flags; 801 int i; 802 803 flags = stats->flags; 804 805 data.mac_id = stats->mac_id; 806 data.beacon_filter_average_energy = 807 le32_to_cpu(stats->beacon_filter_average_energy); 808 data.flags = flags; 809 data.beacon_counter = stats->beacon_counter; 810 811 for (i = 0; i < ARRAY_SIZE(beacon_average_energy); i++) 812 beacon_average_energy[i] = 813 le32_to_cpu(stats->beacon_average_energy[i]); 814 815 data.beacon_average_energy = beacon_average_energy; 816 817 ieee80211_iterate_active_interfaces(mvm->hw, 818 IEEE80211_IFACE_ITER_NORMAL, 819 iwl_mvm_stat_iterator, 820 &data); 821 } 822 823 static bool iwl_mvm_verify_stats_len(struct iwl_mvm *mvm, 824 struct iwl_rx_packet *pkt, 825 u32 expected_size) 826 { 827 struct iwl_statistics_ntfy_hdr *hdr; 828 829 if (WARN_ONCE(iwl_rx_packet_payload_len(pkt) < expected_size, 830 "received invalid statistics size (%d)!, expected_size: %d\n", 831 iwl_rx_packet_payload_len(pkt), expected_size)) 832 return false; 833 834 hdr = (void *)&pkt->data; 835 836 if (WARN_ONCE((hdr->type & IWL_STATISTICS_TYPE_MSK) != FW_STATISTICS_OPERATIONAL || 837 hdr->version != 838 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, STATISTICS_NOTIFICATION, 0), 839 "received unsupported hdr type %d, version %d\n", 840 hdr->type, hdr->version)) 841 return false; 842 843 if (WARN_ONCE(le16_to_cpu(hdr->size) != expected_size, 844 "received invalid statistics size in header (%d)!, expected_size: %d\n", 845 le16_to_cpu(hdr->size), expected_size)) 846 return false; 847 848 return true; 849 } 850 851 static void 852 iwl_mvm_stat_iterator_all_links(struct iwl_mvm *mvm, 853 struct iwl_stats_ntfy_per_link *per_link) 854 { 855 u32 air_time[MAC_INDEX_AUX] = {}; 856 u32 rx_bytes[MAC_INDEX_AUX] = {}; 857 int fw_link_id; 858 859 for (fw_link_id = 0; fw_link_id < ARRAY_SIZE(mvm->link_id_to_link_conf); 860 fw_link_id++) { 861 struct iwl_stats_ntfy_per_link *link_stats; 862 struct ieee80211_bss_conf *bss_conf; 863 struct iwl_mvm_vif *mvmvif; 864 struct iwl_mvm_vif_link_info *link_info; 865 int link_id; 866 int sig; 867 868 bss_conf = iwl_mvm_rcu_fw_link_id_to_link_conf(mvm, fw_link_id, 869 false); 870 if (!bss_conf) 871 continue; 872 873 if (bss_conf->vif->type != NL80211_IFTYPE_STATION) 874 continue; 875 876 link_id = bss_conf->link_id; 877 if (link_id >= ARRAY_SIZE(mvmvif->link)) 878 continue; 879 880 mvmvif = iwl_mvm_vif_from_mac80211(bss_conf->vif); 881 link_info = mvmvif->link[link_id]; 882 if (!link_info) 883 continue; 884 885 link_stats = &per_link[fw_link_id]; 886 887 link_info->beacon_stats.num_beacons = 888 le32_to_cpu(link_stats->beacon_counter); 889 890 /* we basically just use the u8 to store 8 bits and then treat 891 * it as a s8 whenever we take it out to a different type. 892 */ 893 link_info->beacon_stats.avg_signal = 894 -le32_to_cpu(link_stats->beacon_average_energy); 895 896 if (link_info->phy_ctxt && 897 link_info->phy_ctxt->channel->band == NL80211_BAND_2GHZ) 898 iwl_mvm_bt_coex_update_vif_esr(mvm, bss_conf->vif, 899 link_id); 900 901 /* make sure that beacon statistics don't go backwards with TCM 902 * request to clear statistics 903 */ 904 if (mvm->statistics_clear) 905 mvmvif->link[link_id]->beacon_stats.accu_num_beacons += 906 mvmvif->link[link_id]->beacon_stats.num_beacons; 907 908 sig = -le32_to_cpu(link_stats->beacon_filter_average_energy); 909 iwl_mvm_update_vif_sig(bss_conf->vif, sig, link_info); 910 911 if (WARN_ONCE(mvmvif->id >= MAC_INDEX_AUX, 912 "invalid mvmvif id: %d", mvmvif->id)) 913 continue; 914 915 air_time[mvmvif->id] += 916 le32_to_cpu(per_link[fw_link_id].air_time); 917 rx_bytes[mvmvif->id] += 918 le32_to_cpu(per_link[fw_link_id].rx_bytes); 919 } 920 921 /* Don't update in case the statistics are not cleared, since 922 * we will end up counting twice the same airtime, once in TCM 923 * request and once in statistics notification. 924 */ 925 if (mvm->statistics_clear) { 926 __le32 air_time_le[MAC_INDEX_AUX]; 927 __le32 rx_bytes_le[MAC_INDEX_AUX]; 928 int vif_id; 929 930 for (vif_id = 0; vif_id < ARRAY_SIZE(air_time_le); vif_id++) { 931 air_time_le[vif_id] = cpu_to_le32(air_time[vif_id]); 932 rx_bytes_le[vif_id] = cpu_to_le32(rx_bytes[vif_id]); 933 } 934 935 iwl_mvm_update_tcm_from_stats(mvm, air_time_le, rx_bytes_le); 936 } 937 } 938 939 void iwl_mvm_handle_rx_system_oper_stats(struct iwl_mvm *mvm, 940 struct iwl_rx_cmd_buffer *rxb) 941 { 942 u8 average_energy[IWL_MVM_STATION_COUNT_MAX]; 943 struct iwl_rx_packet *pkt = rxb_addr(rxb); 944 struct iwl_system_statistics_notif_oper *stats; 945 int i; 946 u32 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, STATISTICS_GROUP, 947 STATISTICS_OPER_NOTIF, 0); 948 949 if (notif_ver != 3) { 950 IWL_FW_CHECK_FAILED(mvm, 951 "Oper stats notif ver %d is not supported\n", 952 notif_ver); 953 return; 954 } 955 956 stats = (void *)&pkt->data; 957 iwl_mvm_stat_iterator_all_links(mvm, stats->per_link); 958 959 for (i = 0; i < ARRAY_SIZE(average_energy); i++) 960 average_energy[i] = 961 le32_to_cpu(stats->per_sta[i].average_energy); 962 963 ieee80211_iterate_stations_atomic(mvm->hw, iwl_mvm_stats_energy_iter, 964 average_energy); 965 iwl_mvm_handle_per_phy_stats(mvm, stats->per_phy); 966 } 967 968 void iwl_mvm_handle_rx_system_oper_part1_stats(struct iwl_mvm *mvm, 969 struct iwl_rx_cmd_buffer *rxb) 970 { 971 struct iwl_rx_packet *pkt = rxb_addr(rxb); 972 struct iwl_system_statistics_part1_notif_oper *part1_stats; 973 int i; 974 u32 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, STATISTICS_GROUP, 975 STATISTICS_OPER_PART1_NOTIF, 0); 976 977 if (notif_ver != 4) { 978 IWL_FW_CHECK_FAILED(mvm, 979 "Part1 stats notif ver %d is not supported\n", 980 notif_ver); 981 return; 982 } 983 984 part1_stats = (void *)&pkt->data; 985 mvm->radio_stats.rx_time = 0; 986 mvm->radio_stats.tx_time = 0; 987 for (i = 0; i < ARRAY_SIZE(part1_stats->per_link); i++) { 988 mvm->radio_stats.rx_time += 989 le64_to_cpu(part1_stats->per_link[i].rx_time); 990 mvm->radio_stats.tx_time += 991 le64_to_cpu(part1_stats->per_link[i].tx_time); 992 } 993 } 994 995 static void 996 iwl_mvm_handle_rx_statistics_tlv(struct iwl_mvm *mvm, 997 struct iwl_rx_packet *pkt) 998 { 999 u8 average_energy[IWL_MVM_STATION_COUNT_MAX]; 1000 __le32 air_time[MAC_INDEX_AUX]; 1001 __le32 rx_bytes[MAC_INDEX_AUX]; 1002 __le32 flags = 0; 1003 int i; 1004 u32 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, 1005 STATISTICS_NOTIFICATION, 0); 1006 1007 if (WARN_ONCE(notif_ver > 15, 1008 "invalid statistics version id: %d\n", notif_ver)) 1009 return; 1010 1011 if (notif_ver == 14) { 1012 struct iwl_statistics_operational_ntfy_ver_14 *stats = 1013 (void *)pkt->data; 1014 1015 if (!iwl_mvm_verify_stats_len(mvm, pkt, sizeof(*stats))) 1016 return; 1017 1018 iwl_mvm_stats_ver_14(mvm, stats); 1019 1020 flags = stats->flags; 1021 mvm->radio_stats.rx_time = le64_to_cpu(stats->rx_time); 1022 mvm->radio_stats.tx_time = le64_to_cpu(stats->tx_time); 1023 mvm->radio_stats.on_time_rf = le64_to_cpu(stats->on_time_rf); 1024 mvm->radio_stats.on_time_scan = 1025 le64_to_cpu(stats->on_time_scan); 1026 1027 for (i = 0; i < ARRAY_SIZE(average_energy); i++) 1028 average_energy[i] = le32_to_cpu(stats->average_energy[i]); 1029 1030 for (i = 0; i < ARRAY_SIZE(air_time); i++) { 1031 air_time[i] = stats->air_time[i]; 1032 rx_bytes[i] = stats->rx_bytes[i]; 1033 } 1034 } 1035 1036 if (notif_ver == 15) { 1037 struct iwl_statistics_operational_ntfy *stats = 1038 (void *)pkt->data; 1039 1040 if (!iwl_mvm_verify_stats_len(mvm, pkt, sizeof(*stats))) 1041 return; 1042 1043 iwl_mvm_stats_ver_15(mvm, stats); 1044 1045 flags = stats->flags; 1046 mvm->radio_stats.rx_time = le64_to_cpu(stats->rx_time); 1047 mvm->radio_stats.tx_time = le64_to_cpu(stats->tx_time); 1048 mvm->radio_stats.on_time_rf = le64_to_cpu(stats->on_time_rf); 1049 mvm->radio_stats.on_time_scan = 1050 le64_to_cpu(stats->on_time_scan); 1051 1052 for (i = 0; i < ARRAY_SIZE(average_energy); i++) 1053 average_energy[i] = 1054 le32_to_cpu(stats->per_sta[i].average_energy); 1055 1056 for (i = 0; i < ARRAY_SIZE(air_time); i++) { 1057 air_time[i] = stats->per_mac[i].air_time; 1058 rx_bytes[i] = stats->per_mac[i].rx_bytes; 1059 } 1060 } 1061 1062 iwl_mvm_rx_stats_check_trigger(mvm, pkt); 1063 1064 ieee80211_iterate_stations_atomic(mvm->hw, iwl_mvm_stats_energy_iter, 1065 average_energy); 1066 /* 1067 * Don't update in case the statistics are not cleared, since 1068 * we will end up counting twice the same airtime, once in TCM 1069 * request and once in statistics notification. 1070 */ 1071 if (le32_to_cpu(flags) & IWL_STATISTICS_REPLY_FLG_CLEAR) 1072 iwl_mvm_update_tcm_from_stats(mvm, air_time, rx_bytes); 1073 } 1074 1075 void iwl_mvm_handle_rx_statistics(struct iwl_mvm *mvm, 1076 struct iwl_rx_packet *pkt) 1077 { 1078 struct iwl_mvm_stat_data data = { 1079 .mvm = mvm, 1080 }; 1081 __le32 *bytes, *air_time, flags; 1082 int expected_size; 1083 u8 *energy; 1084 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 1085 WIDE_ID(SYSTEM_GROUP, 1086 SYSTEM_STATISTICS_CMD), 1087 IWL_FW_CMD_VER_UNKNOWN); 1088 1089 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN) 1090 return; 1091 1092 /* From ver 14 and up we use TLV statistics format */ 1093 if (iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, 1094 STATISTICS_NOTIFICATION, 0) >= 14) 1095 return iwl_mvm_handle_rx_statistics_tlv(mvm, pkt); 1096 1097 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 1098 if (iwl_mvm_has_new_rx_api(mvm)) 1099 expected_size = sizeof(struct iwl_notif_statistics_v11); 1100 else 1101 expected_size = sizeof(struct iwl_notif_statistics_v10); 1102 } else { 1103 expected_size = sizeof(struct iwl_notif_statistics); 1104 } 1105 1106 if (WARN_ONCE(iwl_rx_packet_payload_len(pkt) != expected_size, 1107 "received invalid statistics size (%d)!\n", 1108 iwl_rx_packet_payload_len(pkt))) 1109 return; 1110 1111 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 1112 struct iwl_notif_statistics_v11 *stats = (void *)&pkt->data; 1113 1114 data.mac_id = stats->rx.general.mac_id; 1115 data.beacon_filter_average_energy = 1116 stats->general.common.beacon_filter_average_energy; 1117 1118 mvm->rx_stats_v3 = stats->rx; 1119 1120 mvm->radio_stats.rx_time = 1121 le64_to_cpu(stats->general.common.rx_time); 1122 mvm->radio_stats.tx_time = 1123 le64_to_cpu(stats->general.common.tx_time); 1124 mvm->radio_stats.on_time_rf = 1125 le64_to_cpu(stats->general.common.on_time_rf); 1126 mvm->radio_stats.on_time_scan = 1127 le64_to_cpu(stats->general.common.on_time_scan); 1128 1129 data.beacon_counter = stats->general.beacon_counter; 1130 data.beacon_average_energy = 1131 stats->general.beacon_average_energy; 1132 flags = stats->flag; 1133 } else { 1134 struct iwl_notif_statistics *stats = (void *)&pkt->data; 1135 1136 data.mac_id = stats->rx.general.mac_id; 1137 data.beacon_filter_average_energy = 1138 stats->general.common.beacon_filter_average_energy; 1139 1140 mvm->rx_stats = stats->rx; 1141 1142 mvm->radio_stats.rx_time = 1143 le64_to_cpu(stats->general.common.rx_time); 1144 mvm->radio_stats.tx_time = 1145 le64_to_cpu(stats->general.common.tx_time); 1146 mvm->radio_stats.on_time_rf = 1147 le64_to_cpu(stats->general.common.on_time_rf); 1148 mvm->radio_stats.on_time_scan = 1149 le64_to_cpu(stats->general.common.on_time_scan); 1150 1151 data.beacon_counter = stats->general.beacon_counter; 1152 data.beacon_average_energy = 1153 stats->general.beacon_average_energy; 1154 flags = stats->flag; 1155 } 1156 data.flags = flags; 1157 1158 iwl_mvm_rx_stats_check_trigger(mvm, pkt); 1159 1160 ieee80211_iterate_active_interfaces(mvm->hw, 1161 IEEE80211_IFACE_ITER_NORMAL, 1162 iwl_mvm_stat_iterator, 1163 &data); 1164 1165 if (!iwl_mvm_has_new_rx_api(mvm)) 1166 return; 1167 1168 if (!iwl_mvm_has_new_rx_stats_api(mvm)) { 1169 struct iwl_notif_statistics_v11 *v11 = (void *)&pkt->data; 1170 1171 energy = (void *)&v11->load_stats.avg_energy; 1172 bytes = (void *)&v11->load_stats.byte_count; 1173 air_time = (void *)&v11->load_stats.air_time; 1174 } else { 1175 struct iwl_notif_statistics *stats = (void *)&pkt->data; 1176 1177 energy = (void *)&stats->load_stats.avg_energy; 1178 bytes = (void *)&stats->load_stats.byte_count; 1179 air_time = (void *)&stats->load_stats.air_time; 1180 } 1181 ieee80211_iterate_stations_atomic(mvm->hw, iwl_mvm_stats_energy_iter, 1182 energy); 1183 1184 /* 1185 * Don't update in case the statistics are not cleared, since 1186 * we will end up counting twice the same airtime, once in TCM 1187 * request and once in statistics notification. 1188 */ 1189 if (le32_to_cpu(flags) & IWL_STATISTICS_REPLY_FLG_CLEAR) 1190 iwl_mvm_update_tcm_from_stats(mvm, air_time, bytes); 1191 1192 } 1193 1194 void iwl_mvm_rx_statistics(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 1195 { 1196 iwl_mvm_handle_rx_statistics(mvm, rxb_addr(rxb)); 1197 } 1198 1199 void iwl_mvm_window_status_notif(struct iwl_mvm *mvm, 1200 struct iwl_rx_cmd_buffer *rxb) 1201 { 1202 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1203 struct iwl_ba_window_status_notif *notif = (void *)pkt->data; 1204 int i; 1205 1206 BUILD_BUG_ON(ARRAY_SIZE(notif->ra_tid) != BA_WINDOW_STREAMS_MAX); 1207 BUILD_BUG_ON(ARRAY_SIZE(notif->mpdu_rx_count) != BA_WINDOW_STREAMS_MAX); 1208 BUILD_BUG_ON(ARRAY_SIZE(notif->bitmap) != BA_WINDOW_STREAMS_MAX); 1209 BUILD_BUG_ON(ARRAY_SIZE(notif->start_seq_num) != BA_WINDOW_STREAMS_MAX); 1210 1211 rcu_read_lock(); 1212 for (i = 0; i < BA_WINDOW_STREAMS_MAX; i++) { 1213 struct ieee80211_sta *sta; 1214 u8 sta_id, tid; 1215 u64 bitmap; 1216 u32 ssn; 1217 u16 ratid; 1218 u16 received_mpdu; 1219 1220 ratid = le16_to_cpu(notif->ra_tid[i]); 1221 /* check that this TID is valid */ 1222 if (!(ratid & BA_WINDOW_STATUS_VALID_MSK)) 1223 continue; 1224 1225 received_mpdu = le16_to_cpu(notif->mpdu_rx_count[i]); 1226 if (received_mpdu == 0) 1227 continue; 1228 1229 tid = ratid & BA_WINDOW_STATUS_TID_MSK; 1230 /* get the station */ 1231 sta_id = (ratid & BA_WINDOW_STATUS_STA_ID_MSK) 1232 >> BA_WINDOW_STATUS_STA_ID_POS; 1233 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1234 if (IS_ERR_OR_NULL(sta)) 1235 continue; 1236 bitmap = le64_to_cpu(notif->bitmap[i]); 1237 ssn = le32_to_cpu(notif->start_seq_num[i]); 1238 1239 /* update mac80211 with the bitmap for the reordering buffer */ 1240 ieee80211_mark_rx_ba_filtered_frames(sta, tid, ssn, bitmap, 1241 received_mpdu); 1242 } 1243 rcu_read_unlock(); 1244 } 1245