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) 2015-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/etherdevice.h> 8 #include <linux/skbuff.h> 9 #include "iwl-trans.h" 10 #include "mvm.h" 11 #include "fw-api.h" 12 #include "time-sync.h" 13 14 static inline int iwl_mvm_check_pn(struct iwl_mvm *mvm, struct sk_buff *skb, 15 int queue, struct ieee80211_sta *sta) 16 { 17 struct iwl_mvm_sta *mvmsta; 18 struct ieee80211_hdr *hdr = (void *)skb_mac_header(skb); 19 struct ieee80211_rx_status *stats = IEEE80211_SKB_RXCB(skb); 20 struct iwl_mvm_key_pn *ptk_pn; 21 int res; 22 u8 tid, keyidx; 23 u8 pn[IEEE80211_CCMP_PN_LEN]; 24 u8 *extiv; 25 26 /* do PN checking */ 27 28 /* multicast and non-data only arrives on default queue */ 29 if (!ieee80211_is_data(hdr->frame_control) || 30 is_multicast_ether_addr(hdr->addr1)) 31 return 0; 32 33 /* do not check PN for open AP */ 34 if (!(stats->flag & RX_FLAG_DECRYPTED)) 35 return 0; 36 37 /* 38 * avoid checking for default queue - we don't want to replicate 39 * all the logic that's necessary for checking the PN on fragmented 40 * frames, leave that to mac80211 41 */ 42 if (queue == 0) 43 return 0; 44 45 /* if we are here - this for sure is either CCMP or GCMP */ 46 if (IS_ERR_OR_NULL(sta)) { 47 IWL_DEBUG_DROP(mvm, 48 "expected hw-decrypted unicast frame for station\n"); 49 return -1; 50 } 51 52 mvmsta = iwl_mvm_sta_from_mac80211(sta); 53 54 extiv = (u8 *)hdr + ieee80211_hdrlen(hdr->frame_control); 55 keyidx = extiv[3] >> 6; 56 57 ptk_pn = rcu_dereference(mvmsta->ptk_pn[keyidx]); 58 if (!ptk_pn) 59 return -1; 60 61 if (ieee80211_is_data_qos(hdr->frame_control)) 62 tid = ieee80211_get_tid(hdr); 63 else 64 tid = 0; 65 66 /* we don't use HCCA/802.11 QoS TSPECs, so drop such frames */ 67 if (tid >= IWL_MAX_TID_COUNT) 68 return -1; 69 70 /* load pn */ 71 pn[0] = extiv[7]; 72 pn[1] = extiv[6]; 73 pn[2] = extiv[5]; 74 pn[3] = extiv[4]; 75 pn[4] = extiv[1]; 76 pn[5] = extiv[0]; 77 78 res = memcmp(pn, ptk_pn->q[queue].pn[tid], IEEE80211_CCMP_PN_LEN); 79 if (res < 0) 80 return -1; 81 if (!res && !(stats->flag & RX_FLAG_ALLOW_SAME_PN)) 82 return -1; 83 84 memcpy(ptk_pn->q[queue].pn[tid], pn, IEEE80211_CCMP_PN_LEN); 85 stats->flag |= RX_FLAG_PN_VALIDATED; 86 87 return 0; 88 } 89 90 /* iwl_mvm_create_skb Adds the rxb to a new skb */ 91 static int iwl_mvm_create_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 92 struct ieee80211_hdr *hdr, u16 len, u8 crypt_len, 93 struct iwl_rx_cmd_buffer *rxb) 94 { 95 struct iwl_rx_packet *pkt = rxb_addr(rxb); 96 struct iwl_rx_mpdu_desc *desc = (void *)pkt->data; 97 unsigned int headlen, fraglen, pad_len = 0; 98 unsigned int hdrlen = ieee80211_hdrlen(hdr->frame_control); 99 u8 mic_crc_len = u8_get_bits(desc->mac_flags1, 100 IWL_RX_MPDU_MFLG1_MIC_CRC_LEN_MASK) << 1; 101 102 if (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_PAD) { 103 len -= 2; 104 pad_len = 2; 105 } 106 107 /* 108 * For non monitor interface strip the bytes the RADA might not have 109 * removed (it might be disabled, e.g. for mgmt frames). As a monitor 110 * interface cannot exist with other interfaces, this removal is safe 111 * and sufficient, in monitor mode there's no decryption being done. 112 */ 113 if (len > mic_crc_len && !ieee80211_hw_check(mvm->hw, RX_INCLUDES_FCS)) 114 len -= mic_crc_len; 115 116 /* If frame is small enough to fit in skb->head, pull it completely. 117 * If not, only pull ieee80211_hdr (including crypto if present, and 118 * an additional 8 bytes for SNAP/ethertype, see below) so that 119 * splice() or TCP coalesce are more efficient. 120 * 121 * Since, in addition, ieee80211_data_to_8023() always pull in at 122 * least 8 bytes (possibly more for mesh) we can do the same here 123 * to save the cost of doing it later. That still doesn't pull in 124 * the actual IP header since the typical case has a SNAP header. 125 * If the latter changes (there are efforts in the standards group 126 * to do so) we should revisit this and ieee80211_data_to_8023(). 127 */ 128 headlen = (len <= skb_tailroom(skb)) ? len : 129 hdrlen + crypt_len + 8; 130 131 /* The firmware may align the packet to DWORD. 132 * The padding is inserted after the IV. 133 * After copying the header + IV skip the padding if 134 * present before copying packet data. 135 */ 136 hdrlen += crypt_len; 137 138 if (unlikely(headlen < hdrlen)) 139 return -EINVAL; 140 141 /* Since data doesn't move data while putting data on skb and that is 142 * the only way we use, data + len is the next place that hdr would be put 143 */ 144 skb_set_mac_header(skb, skb->len); 145 skb_put_data(skb, hdr, hdrlen); 146 skb_put_data(skb, (u8 *)hdr + hdrlen + pad_len, headlen - hdrlen); 147 148 /* 149 * If we did CHECKSUM_COMPLETE, the hardware only does it right for 150 * certain cases and starts the checksum after the SNAP. Check if 151 * this is the case - it's easier to just bail out to CHECKSUM_NONE 152 * in the cases the hardware didn't handle, since it's rare to see 153 * such packets, even though the hardware did calculate the checksum 154 * in this case, just starting after the MAC header instead. 155 * 156 * Starting from Bz hardware, it calculates starting directly after 157 * the MAC header, so that matches mac80211's expectation. 158 */ 159 if (skb->ip_summed == CHECKSUM_COMPLETE) { 160 struct { 161 u8 hdr[6]; 162 __be16 type; 163 } __packed *shdr = (void *)((u8 *)hdr + hdrlen + pad_len); 164 165 if (unlikely(headlen - hdrlen < sizeof(*shdr) || 166 !ether_addr_equal(shdr->hdr, rfc1042_header) || 167 (shdr->type != htons(ETH_P_IP) && 168 shdr->type != htons(ETH_P_ARP) && 169 shdr->type != htons(ETH_P_IPV6) && 170 shdr->type != htons(ETH_P_8021Q) && 171 shdr->type != htons(ETH_P_PAE) && 172 shdr->type != htons(ETH_P_TDLS)))) 173 skb->ip_summed = CHECKSUM_NONE; 174 else if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_BZ) 175 /* mac80211 assumes full CSUM including SNAP header */ 176 skb_postpush_rcsum(skb, shdr, sizeof(*shdr)); 177 } 178 179 fraglen = len - headlen; 180 181 if (fraglen) { 182 int offset = (u8 *)hdr + headlen + pad_len - 183 (u8 *)rxb_addr(rxb) + rxb_offset(rxb); 184 185 skb_add_rx_frag(skb, 0, rxb_steal_page(rxb), offset, 186 fraglen, rxb->truesize); 187 } 188 189 return 0; 190 } 191 192 /* put a TLV on the skb and return data pointer 193 * 194 * Also pad to 4 the len and zero out all data part 195 */ 196 static void * 197 iwl_mvm_radiotap_put_tlv(struct sk_buff *skb, u16 type, u16 len) 198 { 199 struct ieee80211_radiotap_tlv *tlv; 200 201 tlv = skb_put(skb, sizeof(*tlv)); 202 tlv->type = cpu_to_le16(type); 203 tlv->len = cpu_to_le16(len); 204 return skb_put_zero(skb, ALIGN(len, 4)); 205 } 206 207 static void iwl_mvm_add_rtap_sniffer_config(struct iwl_mvm *mvm, 208 struct sk_buff *skb) 209 { 210 struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); 211 struct ieee80211_radiotap_vendor_content *radiotap; 212 const u16 vendor_data_len = sizeof(mvm->cur_aid); 213 214 if (!mvm->cur_aid) 215 return; 216 217 radiotap = iwl_mvm_radiotap_put_tlv(skb, 218 IEEE80211_RADIOTAP_VENDOR_NAMESPACE, 219 sizeof(*radiotap) + vendor_data_len); 220 221 /* Intel OUI */ 222 radiotap->oui[0] = 0xf6; 223 radiotap->oui[1] = 0x54; 224 radiotap->oui[2] = 0x25; 225 /* radiotap sniffer config sub-namespace */ 226 radiotap->oui_subtype = 1; 227 radiotap->vendor_type = 0; 228 229 /* fill the data now */ 230 memcpy(radiotap->data, &mvm->cur_aid, sizeof(mvm->cur_aid)); 231 232 rx_status->flag |= RX_FLAG_RADIOTAP_TLV_AT_END; 233 } 234 235 /* iwl_mvm_pass_packet_to_mac80211 - passes the packet for mac80211 */ 236 static void iwl_mvm_pass_packet_to_mac80211(struct iwl_mvm *mvm, 237 struct napi_struct *napi, 238 struct sk_buff *skb, int queue, 239 struct ieee80211_sta *sta, 240 struct ieee80211_link_sta *link_sta) 241 { 242 if (unlikely(iwl_mvm_check_pn(mvm, skb, queue, sta))) { 243 kfree_skb(skb); 244 return; 245 } 246 247 if (sta && sta->valid_links && link_sta) { 248 struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); 249 250 rx_status->link_valid = 1; 251 rx_status->link_id = link_sta->link_id; 252 } 253 254 ieee80211_rx_napi(mvm->hw, sta, skb, napi); 255 } 256 257 static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm, 258 struct ieee80211_rx_status *rx_status, 259 u32 rate_n_flags, int energy_a, 260 int energy_b) 261 { 262 int max_energy; 263 u32 rate_flags = rate_n_flags; 264 265 energy_a = energy_a ? -energy_a : S8_MIN; 266 energy_b = energy_b ? -energy_b : S8_MIN; 267 max_energy = max(energy_a, energy_b); 268 269 IWL_DEBUG_STATS(mvm, "energy In A %d B %d, and max %d\n", 270 energy_a, energy_b, max_energy); 271 272 rx_status->signal = max_energy; 273 rx_status->chains = 274 (rate_flags & RATE_MCS_ANT_AB_MSK) >> RATE_MCS_ANT_POS; 275 rx_status->chain_signal[0] = energy_a; 276 rx_status->chain_signal[1] = energy_b; 277 } 278 279 static int iwl_mvm_rx_mgmt_prot(struct ieee80211_sta *sta, 280 struct ieee80211_hdr *hdr, 281 struct iwl_rx_mpdu_desc *desc, 282 u32 status, 283 struct ieee80211_rx_status *stats) 284 { 285 struct wireless_dev *wdev; 286 struct iwl_mvm_sta *mvmsta; 287 struct iwl_mvm_vif *mvmvif; 288 u8 keyid; 289 struct ieee80211_key_conf *key; 290 u32 len = le16_to_cpu(desc->mpdu_len); 291 const u8 *frame = (void *)hdr; 292 293 if ((status & IWL_RX_MPDU_STATUS_SEC_MASK) == IWL_RX_MPDU_STATUS_SEC_NONE) 294 return 0; 295 296 /* 297 * For non-beacon, we don't really care. But beacons may 298 * be filtered out, and we thus need the firmware's replay 299 * detection, otherwise beacons the firmware previously 300 * filtered could be replayed, or something like that, and 301 * it can filter a lot - though usually only if nothing has 302 * changed. 303 */ 304 if (!ieee80211_is_beacon(hdr->frame_control)) 305 return 0; 306 307 if (!sta) 308 return -1; 309 310 mvmsta = iwl_mvm_sta_from_mac80211(sta); 311 mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif); 312 313 /* key mismatch - will also report !MIC_OK but we shouldn't count it */ 314 if (!(status & IWL_RX_MPDU_STATUS_KEY_VALID)) 315 goto report; 316 317 /* good cases */ 318 if (likely(status & IWL_RX_MPDU_STATUS_MIC_OK && 319 !(status & IWL_RX_MPDU_STATUS_REPLAY_ERROR))) { 320 stats->flag |= RX_FLAG_DECRYPTED; 321 return 0; 322 } 323 324 /* 325 * both keys will have the same cipher and MIC length, use 326 * whichever one is available 327 */ 328 key = rcu_dereference(mvmvif->bcn_prot.keys[0]); 329 if (!key) { 330 key = rcu_dereference(mvmvif->bcn_prot.keys[1]); 331 if (!key) 332 goto report; 333 } 334 335 if (len < key->icv_len + IEEE80211_GMAC_PN_LEN + 2) 336 goto report; 337 338 /* get the real key ID */ 339 keyid = frame[len - key->icv_len - IEEE80211_GMAC_PN_LEN - 2]; 340 /* and if that's the other key, look it up */ 341 if (keyid != key->keyidx) { 342 /* 343 * shouldn't happen since firmware checked, but be safe 344 * in case the MIC length is wrong too, for example 345 */ 346 if (keyid != 6 && keyid != 7) 347 return -1; 348 key = rcu_dereference(mvmvif->bcn_prot.keys[keyid - 6]); 349 if (!key) 350 goto report; 351 } 352 353 /* Report status to mac80211 */ 354 if (!(status & IWL_RX_MPDU_STATUS_MIC_OK)) 355 ieee80211_key_mic_failure(key); 356 else if (status & IWL_RX_MPDU_STATUS_REPLAY_ERROR) 357 ieee80211_key_replay(key); 358 report: 359 wdev = ieee80211_vif_to_wdev(mvmsta->vif); 360 if (wdev->netdev) 361 cfg80211_rx_unprot_mlme_mgmt(wdev->netdev, (void *)hdr, len); 362 363 return -1; 364 } 365 366 static int iwl_mvm_rx_crypto(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 367 struct ieee80211_hdr *hdr, 368 struct ieee80211_rx_status *stats, u16 phy_info, 369 struct iwl_rx_mpdu_desc *desc, 370 u32 pkt_flags, int queue, u8 *crypt_len) 371 { 372 u32 status = le32_to_cpu(desc->status); 373 374 /* 375 * Drop UNKNOWN frames in aggregation, unless in monitor mode 376 * (where we don't have the keys). 377 * We limit this to aggregation because in TKIP this is a valid 378 * scenario, since we may not have the (correct) TTAK (phase 1 379 * key) in the firmware. 380 */ 381 if (phy_info & IWL_RX_MPDU_PHY_AMPDU && 382 (status & IWL_RX_MPDU_STATUS_SEC_MASK) == 383 IWL_RX_MPDU_STATUS_SEC_UNKNOWN && !mvm->monitor_on) { 384 IWL_DEBUG_DROP(mvm, "Dropping packets, bad enc status\n"); 385 return -1; 386 } 387 388 if (unlikely(ieee80211_is_mgmt(hdr->frame_control) && 389 !ieee80211_has_protected(hdr->frame_control))) 390 return iwl_mvm_rx_mgmt_prot(sta, hdr, desc, status, stats); 391 392 if (!ieee80211_has_protected(hdr->frame_control) || 393 (status & IWL_RX_MPDU_STATUS_SEC_MASK) == 394 IWL_RX_MPDU_STATUS_SEC_NONE) 395 return 0; 396 397 /* TODO: handle packets encrypted with unknown alg */ 398 399 switch (status & IWL_RX_MPDU_STATUS_SEC_MASK) { 400 case IWL_RX_MPDU_STATUS_SEC_CCM: 401 case IWL_RX_MPDU_STATUS_SEC_GCM: 402 BUILD_BUG_ON(IEEE80211_CCMP_PN_LEN != IEEE80211_GCMP_PN_LEN); 403 /* alg is CCM: check MIC only */ 404 if (!(status & IWL_RX_MPDU_STATUS_MIC_OK)) { 405 IWL_DEBUG_DROP(mvm, 406 "Dropping packet, bad MIC (CCM/GCM)\n"); 407 return -1; 408 } 409 410 stats->flag |= RX_FLAG_DECRYPTED | RX_FLAG_MIC_STRIPPED; 411 *crypt_len = IEEE80211_CCMP_HDR_LEN; 412 return 0; 413 case IWL_RX_MPDU_STATUS_SEC_TKIP: 414 /* Don't drop the frame and decrypt it in SW */ 415 if (!fw_has_api(&mvm->fw->ucode_capa, 416 IWL_UCODE_TLV_API_DEPRECATE_TTAK) && 417 !(status & IWL_RX_MPDU_RES_STATUS_TTAK_OK)) 418 return 0; 419 420 if (mvm->trans->trans_cfg->gen2 && 421 !(status & RX_MPDU_RES_STATUS_MIC_OK)) 422 stats->flag |= RX_FLAG_MMIC_ERROR; 423 424 *crypt_len = IEEE80211_TKIP_IV_LEN; 425 fallthrough; 426 case IWL_RX_MPDU_STATUS_SEC_WEP: 427 if (!(status & IWL_RX_MPDU_STATUS_ICV_OK)) 428 return -1; 429 430 stats->flag |= RX_FLAG_DECRYPTED; 431 if ((status & IWL_RX_MPDU_STATUS_SEC_MASK) == 432 IWL_RX_MPDU_STATUS_SEC_WEP) 433 *crypt_len = IEEE80211_WEP_IV_LEN; 434 435 if (pkt_flags & FH_RSCSR_RADA_EN) { 436 stats->flag |= RX_FLAG_ICV_STRIPPED; 437 if (mvm->trans->trans_cfg->gen2) 438 stats->flag |= RX_FLAG_MMIC_STRIPPED; 439 } 440 441 return 0; 442 case IWL_RX_MPDU_STATUS_SEC_EXT_ENC: 443 if (!(status & IWL_RX_MPDU_STATUS_MIC_OK)) 444 return -1; 445 stats->flag |= RX_FLAG_DECRYPTED; 446 return 0; 447 case RX_MPDU_RES_STATUS_SEC_CMAC_GMAC_ENC: 448 break; 449 default: 450 /* 451 * Sometimes we can get frames that were not decrypted 452 * because the firmware didn't have the keys yet. This can 453 * happen after connection where we can get multicast frames 454 * before the GTK is installed. 455 * Silently drop those frames. 456 * Also drop un-decrypted frames in monitor mode. 457 */ 458 if (!is_multicast_ether_addr(hdr->addr1) && 459 !mvm->monitor_on && net_ratelimit()) 460 IWL_WARN(mvm, "Unhandled alg: 0x%x\n", status); 461 } 462 463 return 0; 464 } 465 466 static void iwl_mvm_rx_csum(struct iwl_mvm *mvm, 467 struct ieee80211_sta *sta, 468 struct sk_buff *skb, 469 struct iwl_rx_packet *pkt) 470 { 471 struct iwl_rx_mpdu_desc *desc = (void *)pkt->data; 472 473 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) { 474 if (pkt->len_n_flags & cpu_to_le32(FH_RSCSR_RPA_EN)) { 475 u16 hwsum = be16_to_cpu(desc->v3.raw_xsum); 476 477 skb->ip_summed = CHECKSUM_COMPLETE; 478 skb->csum = csum_unfold(~(__force __sum16)hwsum); 479 } 480 } else { 481 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 482 struct iwl_mvm_vif *mvmvif; 483 u16 flags = le16_to_cpu(desc->l3l4_flags); 484 u8 l3_prot = (u8)((flags & IWL_RX_L3L4_L3_PROTO_MASK) >> 485 IWL_RX_L3_PROTO_POS); 486 487 mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif); 488 489 if (mvmvif->features & NETIF_F_RXCSUM && 490 flags & IWL_RX_L3L4_TCP_UDP_CSUM_OK && 491 (flags & IWL_RX_L3L4_IP_HDR_CSUM_OK || 492 l3_prot == IWL_RX_L3_TYPE_IPV6 || 493 l3_prot == IWL_RX_L3_TYPE_IPV6_FRAG)) 494 skb->ip_summed = CHECKSUM_UNNECESSARY; 495 } 496 } 497 498 /* 499 * returns true if a packet is a duplicate or invalid tid and should be dropped. 500 * Updates AMSDU PN tracking info 501 */ 502 static bool iwl_mvm_is_dup(struct ieee80211_sta *sta, int queue, 503 struct ieee80211_rx_status *rx_status, 504 struct ieee80211_hdr *hdr, 505 struct iwl_rx_mpdu_desc *desc) 506 { 507 struct iwl_mvm_sta *mvm_sta; 508 struct iwl_mvm_rxq_dup_data *dup_data; 509 u8 tid, sub_frame_idx; 510 511 if (WARN_ON(IS_ERR_OR_NULL(sta))) 512 return false; 513 514 mvm_sta = iwl_mvm_sta_from_mac80211(sta); 515 516 if (WARN_ON_ONCE(!mvm_sta->dup_data)) 517 return false; 518 519 dup_data = &mvm_sta->dup_data[queue]; 520 521 /* 522 * Drop duplicate 802.11 retransmissions 523 * (IEEE 802.11-2012: 9.3.2.10 "Duplicate detection and recovery") 524 */ 525 if (ieee80211_is_ctl(hdr->frame_control) || 526 ieee80211_is_any_nullfunc(hdr->frame_control) || 527 is_multicast_ether_addr(hdr->addr1)) 528 return false; 529 530 if (ieee80211_is_data_qos(hdr->frame_control)) { 531 /* frame has qos control */ 532 tid = ieee80211_get_tid(hdr); 533 if (tid >= IWL_MAX_TID_COUNT) 534 return true; 535 } else { 536 tid = IWL_MAX_TID_COUNT; 537 } 538 539 /* If this wasn't a part of an A-MSDU the sub-frame index will be 0 */ 540 sub_frame_idx = desc->amsdu_info & 541 IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK; 542 543 if (unlikely(ieee80211_has_retry(hdr->frame_control) && 544 dup_data->last_seq[tid] == hdr->seq_ctrl && 545 dup_data->last_sub_frame[tid] >= sub_frame_idx)) 546 return true; 547 548 /* Allow same PN as the first subframe for following sub frames */ 549 if (dup_data->last_seq[tid] == hdr->seq_ctrl && 550 sub_frame_idx > dup_data->last_sub_frame[tid] && 551 desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU) 552 rx_status->flag |= RX_FLAG_ALLOW_SAME_PN; 553 554 dup_data->last_seq[tid] = hdr->seq_ctrl; 555 dup_data->last_sub_frame[tid] = sub_frame_idx; 556 557 rx_status->flag |= RX_FLAG_DUP_VALIDATED; 558 559 return false; 560 } 561 562 static void iwl_mvm_release_frames(struct iwl_mvm *mvm, 563 struct ieee80211_sta *sta, 564 struct napi_struct *napi, 565 struct iwl_mvm_baid_data *baid_data, 566 struct iwl_mvm_reorder_buffer *reorder_buf, 567 u16 nssn) 568 { 569 struct iwl_mvm_reorder_buf_entry *entries = 570 &baid_data->entries[reorder_buf->queue * 571 baid_data->entries_per_queue]; 572 u16 ssn = reorder_buf->head_sn; 573 574 lockdep_assert_held(&reorder_buf->lock); 575 576 while (ieee80211_sn_less(ssn, nssn)) { 577 int index = ssn % reorder_buf->buf_size; 578 struct sk_buff_head *skb_list = &entries[index].frames; 579 struct sk_buff *skb; 580 581 ssn = ieee80211_sn_inc(ssn); 582 583 /* 584 * Empty the list. Will have more than one frame for A-MSDU. 585 * Empty list is valid as well since nssn indicates frames were 586 * received. 587 */ 588 while ((skb = __skb_dequeue(skb_list))) { 589 iwl_mvm_pass_packet_to_mac80211(mvm, napi, skb, 590 reorder_buf->queue, 591 sta, NULL /* FIXME */); 592 reorder_buf->num_stored--; 593 } 594 } 595 reorder_buf->head_sn = nssn; 596 } 597 598 static void iwl_mvm_del_ba(struct iwl_mvm *mvm, int queue, 599 struct iwl_mvm_delba_data *data) 600 { 601 struct iwl_mvm_baid_data *ba_data; 602 struct ieee80211_sta *sta; 603 struct iwl_mvm_reorder_buffer *reorder_buf; 604 u8 baid = data->baid; 605 u32 sta_id; 606 607 if (WARN_ONCE(baid >= IWL_MAX_BAID, "invalid BAID: %x\n", baid)) 608 return; 609 610 rcu_read_lock(); 611 612 ba_data = rcu_dereference(mvm->baid_map[baid]); 613 if (WARN_ON_ONCE(!ba_data)) 614 goto out; 615 616 /* pick any STA ID to find the pointer */ 617 sta_id = ffs(ba_data->sta_mask) - 1; 618 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 619 if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 620 goto out; 621 622 reorder_buf = &ba_data->reorder_buf[queue]; 623 624 /* release all frames that are in the reorder buffer to the stack */ 625 spin_lock_bh(&reorder_buf->lock); 626 iwl_mvm_release_frames(mvm, sta, NULL, ba_data, reorder_buf, 627 ieee80211_sn_add(reorder_buf->head_sn, 628 reorder_buf->buf_size)); 629 spin_unlock_bh(&reorder_buf->lock); 630 631 out: 632 rcu_read_unlock(); 633 } 634 635 static void iwl_mvm_release_frames_from_notif(struct iwl_mvm *mvm, 636 struct napi_struct *napi, 637 u8 baid, u16 nssn, int queue) 638 { 639 struct ieee80211_sta *sta; 640 struct iwl_mvm_reorder_buffer *reorder_buf; 641 struct iwl_mvm_baid_data *ba_data; 642 u32 sta_id; 643 644 IWL_DEBUG_HT(mvm, "Frame release notification for BAID %u, NSSN %d\n", 645 baid, nssn); 646 647 if (WARN_ON_ONCE(baid == IWL_RX_REORDER_DATA_INVALID_BAID || 648 baid >= ARRAY_SIZE(mvm->baid_map))) 649 return; 650 651 rcu_read_lock(); 652 653 ba_data = rcu_dereference(mvm->baid_map[baid]); 654 if (WARN(!ba_data, "BAID %d not found in map\n", baid)) 655 goto out; 656 657 /* pick any STA ID to find the pointer */ 658 sta_id = ffs(ba_data->sta_mask) - 1; 659 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 660 if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) 661 goto out; 662 663 reorder_buf = &ba_data->reorder_buf[queue]; 664 665 spin_lock_bh(&reorder_buf->lock); 666 iwl_mvm_release_frames(mvm, sta, napi, ba_data, 667 reorder_buf, nssn); 668 spin_unlock_bh(&reorder_buf->lock); 669 670 out: 671 rcu_read_unlock(); 672 } 673 674 void iwl_mvm_rx_queue_notif(struct iwl_mvm *mvm, struct napi_struct *napi, 675 struct iwl_rx_cmd_buffer *rxb, int queue) 676 { 677 struct iwl_rx_packet *pkt = rxb_addr(rxb); 678 struct iwl_rxq_sync_notification *notif; 679 struct iwl_mvm_internal_rxq_notif *internal_notif; 680 u32 len = iwl_rx_packet_payload_len(pkt); 681 682 notif = (void *)pkt->data; 683 internal_notif = (void *)notif->payload; 684 685 if (WARN_ONCE(len < sizeof(*notif) + sizeof(*internal_notif), 686 "invalid notification size %d (%d)", 687 len, (int)(sizeof(*notif) + sizeof(*internal_notif)))) 688 return; 689 len -= sizeof(*notif) + sizeof(*internal_notif); 690 691 if (WARN_ONCE(internal_notif->sync && 692 mvm->queue_sync_cookie != internal_notif->cookie, 693 "Received expired RX queue sync message (cookie %d but wanted %d, queue %d)\n", 694 internal_notif->cookie, mvm->queue_sync_cookie, queue)) 695 return; 696 697 switch (internal_notif->type) { 698 case IWL_MVM_RXQ_EMPTY: 699 WARN_ONCE(len, "invalid empty notification size %d", len); 700 break; 701 case IWL_MVM_RXQ_NOTIF_DEL_BA: 702 if (WARN_ONCE(len != sizeof(struct iwl_mvm_delba_data), 703 "invalid delba notification size %d (%d)", 704 len, (int)sizeof(struct iwl_mvm_delba_data))) 705 break; 706 iwl_mvm_del_ba(mvm, queue, (void *)internal_notif->data); 707 break; 708 default: 709 WARN_ONCE(1, "Invalid identifier %d", internal_notif->type); 710 } 711 712 if (internal_notif->sync) { 713 WARN_ONCE(!test_and_clear_bit(queue, &mvm->queue_sync_state), 714 "queue sync: queue %d responded a second time!\n", 715 queue); 716 if (READ_ONCE(mvm->queue_sync_state) == 0) 717 wake_up(&mvm->rx_sync_waitq); 718 } 719 } 720 721 /* 722 * Returns true if the MPDU was buffered\dropped, false if it should be passed 723 * to upper layer. 724 */ 725 static bool iwl_mvm_reorder(struct iwl_mvm *mvm, 726 struct napi_struct *napi, 727 int queue, 728 struct ieee80211_sta *sta, 729 struct sk_buff *skb, 730 struct iwl_rx_mpdu_desc *desc) 731 { 732 struct ieee80211_hdr *hdr = (void *)skb_mac_header(skb); 733 struct iwl_mvm_baid_data *baid_data; 734 struct iwl_mvm_reorder_buffer *buffer; 735 u32 reorder = le32_to_cpu(desc->reorder_data); 736 bool amsdu = desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU; 737 bool last_subframe = 738 desc->amsdu_info & IWL_RX_MPDU_AMSDU_LAST_SUBFRAME; 739 u8 tid = ieee80211_get_tid(hdr); 740 u8 sub_frame_idx = desc->amsdu_info & 741 IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK; 742 struct iwl_mvm_reorder_buf_entry *entries; 743 u32 sta_mask; 744 int index; 745 u16 nssn, sn; 746 u8 baid; 747 748 baid = (reorder & IWL_RX_MPDU_REORDER_BAID_MASK) >> 749 IWL_RX_MPDU_REORDER_BAID_SHIFT; 750 751 if (mvm->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000) 752 return false; 753 754 /* 755 * This also covers the case of receiving a Block Ack Request 756 * outside a BA session; we'll pass it to mac80211 and that 757 * then sends a delBA action frame. 758 * This also covers pure monitor mode, in which case we won't 759 * have any BA sessions. 760 */ 761 if (baid == IWL_RX_REORDER_DATA_INVALID_BAID) 762 return false; 763 764 /* no sta yet */ 765 if (WARN_ONCE(IS_ERR_OR_NULL(sta), 766 "Got valid BAID without a valid station assigned\n")) 767 return false; 768 769 /* not a data packet or a bar */ 770 if (!ieee80211_is_back_req(hdr->frame_control) && 771 (!ieee80211_is_data_qos(hdr->frame_control) || 772 is_multicast_ether_addr(hdr->addr1))) 773 return false; 774 775 if (unlikely(!ieee80211_is_data_present(hdr->frame_control))) 776 return false; 777 778 baid_data = rcu_dereference(mvm->baid_map[baid]); 779 if (!baid_data) { 780 IWL_DEBUG_RX(mvm, 781 "Got valid BAID but no baid allocated, bypass the re-ordering buffer. Baid %d reorder 0x%x\n", 782 baid, reorder); 783 return false; 784 } 785 786 rcu_read_lock(); 787 sta_mask = iwl_mvm_sta_fw_id_mask(mvm, sta, -1); 788 rcu_read_unlock(); 789 790 if (IWL_FW_CHECK(mvm, 791 tid != baid_data->tid || 792 !(sta_mask & baid_data->sta_mask), 793 "baid 0x%x is mapped to sta_mask:0x%x tid:%d, but was received for sta_mask:0x%x tid:%d\n", 794 baid, baid_data->sta_mask, baid_data->tid, 795 sta_mask, tid)) 796 return false; 797 798 nssn = reorder & IWL_RX_MPDU_REORDER_NSSN_MASK; 799 sn = (reorder & IWL_RX_MPDU_REORDER_SN_MASK) >> 800 IWL_RX_MPDU_REORDER_SN_SHIFT; 801 802 buffer = &baid_data->reorder_buf[queue]; 803 entries = &baid_data->entries[queue * baid_data->entries_per_queue]; 804 805 spin_lock_bh(&buffer->lock); 806 807 if (!buffer->valid) { 808 if (reorder & IWL_RX_MPDU_REORDER_BA_OLD_SN) { 809 spin_unlock_bh(&buffer->lock); 810 return false; 811 } 812 buffer->valid = true; 813 } 814 815 /* drop any duplicated packets */ 816 if (desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_DUPLICATE)) 817 goto drop; 818 819 /* drop any oudated packets */ 820 if (reorder & IWL_RX_MPDU_REORDER_BA_OLD_SN) 821 goto drop; 822 823 /* release immediately if allowed by nssn and no stored frames */ 824 if (!buffer->num_stored && ieee80211_sn_less(sn, nssn)) { 825 if (!amsdu || last_subframe) 826 buffer->head_sn = nssn; 827 /* No need to update AMSDU last SN - we are moving the head */ 828 spin_unlock_bh(&buffer->lock); 829 return false; 830 } 831 832 /* 833 * release immediately if there are no stored frames, and the sn is 834 * equal to the head. 835 * This can happen due to reorder timer, where NSSN is behind head_sn. 836 * When we released everything, and we got the next frame in the 837 * sequence, according to the NSSN we can't release immediately, 838 * while technically there is no hole and we can move forward. 839 */ 840 if (!buffer->num_stored && sn == buffer->head_sn) { 841 if (!amsdu || last_subframe) 842 buffer->head_sn = ieee80211_sn_inc(buffer->head_sn); 843 844 /* No need to update AMSDU last SN - we are moving the head */ 845 spin_unlock_bh(&buffer->lock); 846 return false; 847 } 848 849 /* put in reorder buffer */ 850 index = sn % buffer->buf_size; 851 __skb_queue_tail(&entries[index].frames, skb); 852 buffer->num_stored++; 853 854 if (amsdu) { 855 buffer->last_amsdu = sn; 856 buffer->last_sub_index = sub_frame_idx; 857 } 858 859 /* 860 * We cannot trust NSSN for AMSDU sub-frames that are not the last. 861 * The reason is that NSSN advances on the first sub-frame, and may 862 * cause the reorder buffer to advance before all the sub-frames arrive. 863 * Example: reorder buffer contains SN 0 & 2, and we receive AMSDU with 864 * SN 1. NSSN for first sub frame will be 3 with the result of driver 865 * releasing SN 0,1, 2. When sub-frame 1 arrives - reorder buffer is 866 * already ahead and it will be dropped. 867 * If the last sub-frame is not on this queue - we will get frame 868 * release notification with up to date NSSN. 869 */ 870 if (!amsdu || last_subframe) 871 iwl_mvm_release_frames(mvm, sta, napi, baid_data, 872 buffer, nssn); 873 874 spin_unlock_bh(&buffer->lock); 875 return true; 876 877 drop: 878 kfree_skb(skb); 879 spin_unlock_bh(&buffer->lock); 880 return true; 881 } 882 883 static void iwl_mvm_agg_rx_received(struct iwl_mvm *mvm, 884 u32 reorder_data, u8 baid) 885 { 886 unsigned long now = jiffies; 887 unsigned long timeout; 888 struct iwl_mvm_baid_data *data; 889 890 rcu_read_lock(); 891 892 data = rcu_dereference(mvm->baid_map[baid]); 893 if (!data) { 894 IWL_DEBUG_RX(mvm, 895 "Got valid BAID but no baid allocated, bypass the re-ordering buffer. Baid %d reorder 0x%x\n", 896 baid, reorder_data); 897 goto out; 898 } 899 900 if (!data->timeout) 901 goto out; 902 903 timeout = data->timeout; 904 /* 905 * Do not update last rx all the time to avoid cache bouncing 906 * between the rx queues. 907 * Update it every timeout. Worst case is the session will 908 * expire after ~ 2 * timeout, which doesn't matter that much. 909 */ 910 if (time_before(data->last_rx + TU_TO_JIFFIES(timeout), now)) 911 /* Update is atomic */ 912 data->last_rx = now; 913 914 out: 915 rcu_read_unlock(); 916 } 917 918 static void iwl_mvm_flip_address(u8 *addr) 919 { 920 int i; 921 u8 mac_addr[ETH_ALEN]; 922 923 for (i = 0; i < ETH_ALEN; i++) 924 mac_addr[i] = addr[ETH_ALEN - i - 1]; 925 ether_addr_copy(addr, mac_addr); 926 } 927 928 struct iwl_mvm_rx_phy_data { 929 enum iwl_rx_phy_info_type info_type; 930 __le32 d0, d1, d2, d3, eht_d4, d5; 931 __le16 d4; 932 bool with_data; 933 bool first_subframe; 934 __le32 rx_vec[4]; 935 936 u32 rate_n_flags; 937 u32 gp2_on_air_rise; 938 u16 phy_info; 939 u8 energy_a, energy_b; 940 u8 channel; 941 }; 942 943 static void iwl_mvm_decode_he_mu_ext(struct iwl_mvm *mvm, 944 struct iwl_mvm_rx_phy_data *phy_data, 945 struct ieee80211_radiotap_he_mu *he_mu) 946 { 947 u32 phy_data2 = le32_to_cpu(phy_data->d2); 948 u32 phy_data3 = le32_to_cpu(phy_data->d3); 949 u16 phy_data4 = le16_to_cpu(phy_data->d4); 950 u32 rate_n_flags = phy_data->rate_n_flags; 951 952 if (FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH1_CRC_OK, phy_data4)) { 953 he_mu->flags1 |= 954 cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_RU_KNOWN | 955 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_CTR_26T_RU_KNOWN); 956 957 he_mu->flags1 |= 958 le16_encode_bits(FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH1_CTR_RU, 959 phy_data4), 960 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_CTR_26T_RU); 961 962 he_mu->ru_ch1[0] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH1_RU0, 963 phy_data2); 964 he_mu->ru_ch1[1] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH1_RU1, 965 phy_data3); 966 he_mu->ru_ch1[2] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH1_RU2, 967 phy_data2); 968 he_mu->ru_ch1[3] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH1_RU3, 969 phy_data3); 970 } 971 972 if (FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH2_CRC_OK, phy_data4) && 973 (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK_V1) != RATE_MCS_CHAN_WIDTH_20) { 974 he_mu->flags1 |= 975 cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH2_RU_KNOWN | 976 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH2_CTR_26T_RU_KNOWN); 977 978 he_mu->flags2 |= 979 le16_encode_bits(FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH2_CTR_RU, 980 phy_data4), 981 IEEE80211_RADIOTAP_HE_MU_FLAGS2_CH2_CTR_26T_RU); 982 983 he_mu->ru_ch2[0] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH2_RU0, 984 phy_data2); 985 he_mu->ru_ch2[1] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH2_RU1, 986 phy_data3); 987 he_mu->ru_ch2[2] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH2_RU2, 988 phy_data2); 989 he_mu->ru_ch2[3] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH2_RU3, 990 phy_data3); 991 } 992 } 993 994 static void 995 iwl_mvm_decode_he_phy_ru_alloc(struct iwl_mvm_rx_phy_data *phy_data, 996 struct ieee80211_radiotap_he *he, 997 struct ieee80211_radiotap_he_mu *he_mu, 998 struct ieee80211_rx_status *rx_status) 999 { 1000 /* 1001 * Unfortunately, we have to leave the mac80211 data 1002 * incorrect for the case that we receive an HE-MU 1003 * transmission and *don't* have the HE phy data (due 1004 * to the bits being used for TSF). This shouldn't 1005 * happen though as management frames where we need 1006 * the TSF/timers are not be transmitted in HE-MU. 1007 */ 1008 u8 ru = le32_get_bits(phy_data->d1, IWL_RX_PHY_DATA1_HE_RU_ALLOC_MASK); 1009 u32 rate_n_flags = phy_data->rate_n_flags; 1010 u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK_V1; 1011 u8 offs = 0; 1012 1013 rx_status->bw = RATE_INFO_BW_HE_RU; 1014 1015 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN); 1016 1017 switch (ru) { 1018 case 0 ... 36: 1019 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_26; 1020 offs = ru; 1021 break; 1022 case 37 ... 52: 1023 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_52; 1024 offs = ru - 37; 1025 break; 1026 case 53 ... 60: 1027 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106; 1028 offs = ru - 53; 1029 break; 1030 case 61 ... 64: 1031 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_242; 1032 offs = ru - 61; 1033 break; 1034 case 65 ... 66: 1035 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_484; 1036 offs = ru - 65; 1037 break; 1038 case 67: 1039 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_996; 1040 break; 1041 case 68: 1042 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_2x996; 1043 break; 1044 } 1045 he->data2 |= le16_encode_bits(offs, 1046 IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET); 1047 he->data2 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_KNOWN | 1048 IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET_KNOWN); 1049 if (phy_data->d1 & cpu_to_le32(IWL_RX_PHY_DATA1_HE_RU_ALLOC_SEC80)) 1050 he->data2 |= 1051 cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_SEC); 1052 1053 #define CHECK_BW(bw) \ 1054 BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_ ## bw ## MHZ != \ 1055 RATE_MCS_CHAN_WIDTH_##bw >> RATE_MCS_CHAN_WIDTH_POS); \ 1056 BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA6_TB_PPDU_BW_ ## bw ## MHZ != \ 1057 RATE_MCS_CHAN_WIDTH_##bw >> RATE_MCS_CHAN_WIDTH_POS) 1058 CHECK_BW(20); 1059 CHECK_BW(40); 1060 CHECK_BW(80); 1061 CHECK_BW(160); 1062 1063 if (he_mu) 1064 he_mu->flags2 |= 1065 le16_encode_bits(FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK_V1, 1066 rate_n_flags), 1067 IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW); 1068 else if (he_type == RATE_MCS_HE_TYPE_TRIG_V1) 1069 he->data6 |= 1070 cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA6_TB_PPDU_BW_KNOWN) | 1071 le16_encode_bits(FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK_V1, 1072 rate_n_flags), 1073 IEEE80211_RADIOTAP_HE_DATA6_TB_PPDU_BW); 1074 } 1075 1076 static void iwl_mvm_decode_he_phy_data(struct iwl_mvm *mvm, 1077 struct iwl_mvm_rx_phy_data *phy_data, 1078 struct ieee80211_radiotap_he *he, 1079 struct ieee80211_radiotap_he_mu *he_mu, 1080 struct ieee80211_rx_status *rx_status, 1081 int queue) 1082 { 1083 switch (phy_data->info_type) { 1084 case IWL_RX_PHY_INFO_TYPE_NONE: 1085 case IWL_RX_PHY_INFO_TYPE_CCK: 1086 case IWL_RX_PHY_INFO_TYPE_OFDM_LGCY: 1087 case IWL_RX_PHY_INFO_TYPE_HT: 1088 case IWL_RX_PHY_INFO_TYPE_VHT_SU: 1089 case IWL_RX_PHY_INFO_TYPE_VHT_MU: 1090 case IWL_RX_PHY_INFO_TYPE_EHT_MU: 1091 case IWL_RX_PHY_INFO_TYPE_EHT_TB: 1092 case IWL_RX_PHY_INFO_TYPE_EHT_MU_EXT: 1093 case IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT: 1094 return; 1095 case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT: 1096 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE_KNOWN | 1097 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE2_KNOWN | 1098 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE3_KNOWN | 1099 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE4_KNOWN); 1100 he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2, 1101 IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE1), 1102 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE1); 1103 he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2, 1104 IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE2), 1105 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE2); 1106 he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2, 1107 IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE3), 1108 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE3); 1109 he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2, 1110 IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE4), 1111 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE4); 1112 fallthrough; 1113 case IWL_RX_PHY_INFO_TYPE_HE_SU: 1114 case IWL_RX_PHY_INFO_TYPE_HE_MU: 1115 case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT: 1116 case IWL_RX_PHY_INFO_TYPE_HE_TB: 1117 /* HE common */ 1118 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_LDPC_XSYMSEG_KNOWN | 1119 IEEE80211_RADIOTAP_HE_DATA1_DOPPLER_KNOWN | 1120 IEEE80211_RADIOTAP_HE_DATA1_BSS_COLOR_KNOWN); 1121 he->data2 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRE_FEC_PAD_KNOWN | 1122 IEEE80211_RADIOTAP_HE_DATA2_PE_DISAMBIG_KNOWN | 1123 IEEE80211_RADIOTAP_HE_DATA2_TXOP_KNOWN | 1124 IEEE80211_RADIOTAP_HE_DATA2_NUM_LTF_SYMS_KNOWN); 1125 he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0, 1126 IWL_RX_PHY_DATA0_HE_BSS_COLOR_MASK), 1127 IEEE80211_RADIOTAP_HE_DATA3_BSS_COLOR); 1128 if (phy_data->info_type != IWL_RX_PHY_INFO_TYPE_HE_TB && 1129 phy_data->info_type != IWL_RX_PHY_INFO_TYPE_HE_TB_EXT) { 1130 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_UL_DL_KNOWN); 1131 he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0, 1132 IWL_RX_PHY_DATA0_HE_UPLINK), 1133 IEEE80211_RADIOTAP_HE_DATA3_UL_DL); 1134 } 1135 he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0, 1136 IWL_RX_PHY_DATA0_HE_LDPC_EXT_SYM), 1137 IEEE80211_RADIOTAP_HE_DATA3_LDPC_XSYMSEG); 1138 he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d0, 1139 IWL_RX_PHY_DATA0_HE_PRE_FEC_PAD_MASK), 1140 IEEE80211_RADIOTAP_HE_DATA5_PRE_FEC_PAD); 1141 he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d0, 1142 IWL_RX_PHY_DATA0_HE_PE_DISAMBIG), 1143 IEEE80211_RADIOTAP_HE_DATA5_PE_DISAMBIG); 1144 he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d1, 1145 IWL_RX_PHY_DATA1_HE_LTF_NUM_MASK), 1146 IEEE80211_RADIOTAP_HE_DATA5_NUM_LTF_SYMS); 1147 he->data6 |= le16_encode_bits(le32_get_bits(phy_data->d0, 1148 IWL_RX_PHY_DATA0_HE_TXOP_DUR_MASK), 1149 IEEE80211_RADIOTAP_HE_DATA6_TXOP); 1150 he->data6 |= le16_encode_bits(le32_get_bits(phy_data->d0, 1151 IWL_RX_PHY_DATA0_HE_DOPPLER), 1152 IEEE80211_RADIOTAP_HE_DATA6_DOPPLER); 1153 break; 1154 } 1155 1156 switch (phy_data->info_type) { 1157 case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT: 1158 case IWL_RX_PHY_INFO_TYPE_HE_MU: 1159 case IWL_RX_PHY_INFO_TYPE_HE_SU: 1160 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE_KNOWN); 1161 he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d0, 1162 IWL_RX_PHY_DATA0_HE_SPATIAL_REUSE_MASK), 1163 IEEE80211_RADIOTAP_HE_DATA4_SU_MU_SPTL_REUSE); 1164 break; 1165 default: 1166 /* nothing here */ 1167 break; 1168 } 1169 1170 switch (phy_data->info_type) { 1171 case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT: 1172 he_mu->flags1 |= 1173 le16_encode_bits(le16_get_bits(phy_data->d4, 1174 IWL_RX_PHY_DATA4_HE_MU_EXT_SIGB_DCM), 1175 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM); 1176 he_mu->flags1 |= 1177 le16_encode_bits(le16_get_bits(phy_data->d4, 1178 IWL_RX_PHY_DATA4_HE_MU_EXT_SIGB_MCS_MASK), 1179 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS); 1180 he_mu->flags2 |= 1181 le16_encode_bits(le16_get_bits(phy_data->d4, 1182 IWL_RX_PHY_DATA4_HE_MU_EXT_PREAMBLE_PUNC_TYPE_MASK), 1183 IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW); 1184 iwl_mvm_decode_he_mu_ext(mvm, phy_data, he_mu); 1185 fallthrough; 1186 case IWL_RX_PHY_INFO_TYPE_HE_MU: 1187 he_mu->flags2 |= 1188 le16_encode_bits(le32_get_bits(phy_data->d1, 1189 IWL_RX_PHY_DATA1_HE_MU_SIBG_SYM_OR_USER_NUM_MASK), 1190 IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_SYMS_USERS); 1191 he_mu->flags2 |= 1192 le16_encode_bits(le32_get_bits(phy_data->d1, 1193 IWL_RX_PHY_DATA1_HE_MU_SIGB_COMPRESSION), 1194 IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_COMP); 1195 fallthrough; 1196 case IWL_RX_PHY_INFO_TYPE_HE_TB: 1197 case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT: 1198 iwl_mvm_decode_he_phy_ru_alloc(phy_data, he, he_mu, rx_status); 1199 break; 1200 case IWL_RX_PHY_INFO_TYPE_HE_SU: 1201 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BEAM_CHANGE_KNOWN); 1202 he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0, 1203 IWL_RX_PHY_DATA0_HE_BEAM_CHNG), 1204 IEEE80211_RADIOTAP_HE_DATA3_BEAM_CHANGE); 1205 break; 1206 default: 1207 /* nothing */ 1208 break; 1209 } 1210 } 1211 1212 #define LE32_DEC_ENC(value, dec_bits, enc_bits) \ 1213 le32_encode_bits(le32_get_bits(value, dec_bits), enc_bits) 1214 1215 #define IWL_MVM_ENC_USIG_VALUE_MASK(usig, in_value, dec_bits, enc_bits) do { \ 1216 typeof(enc_bits) _enc_bits = enc_bits; \ 1217 typeof(usig) _usig = usig; \ 1218 (_usig)->mask |= cpu_to_le32(_enc_bits); \ 1219 (_usig)->value |= LE32_DEC_ENC(in_value, dec_bits, _enc_bits); \ 1220 } while (0) 1221 1222 #define __IWL_MVM_ENC_EHT_RU(rt_data, rt_ru, fw_data, fw_ru) \ 1223 eht->data[(rt_data)] |= \ 1224 (cpu_to_le32 \ 1225 (IEEE80211_RADIOTAP_EHT_DATA ## rt_data ## _RU_ALLOC_CC_ ## rt_ru ## _KNOWN) | \ 1226 LE32_DEC_ENC(data ## fw_data, \ 1227 IWL_RX_PHY_DATA ## fw_data ## _EHT_MU_EXT_RU_ALLOC_ ## fw_ru, \ 1228 IEEE80211_RADIOTAP_EHT_DATA ## rt_data ## _RU_ALLOC_CC_ ## rt_ru)) 1229 1230 #define _IWL_MVM_ENC_EHT_RU(rt_data, rt_ru, fw_data, fw_ru) \ 1231 __IWL_MVM_ENC_EHT_RU(rt_data, rt_ru, fw_data, fw_ru) 1232 1233 #define IEEE80211_RADIOTAP_RU_DATA_1_1_1 1 1234 #define IEEE80211_RADIOTAP_RU_DATA_2_1_1 2 1235 #define IEEE80211_RADIOTAP_RU_DATA_1_1_2 2 1236 #define IEEE80211_RADIOTAP_RU_DATA_2_1_2 2 1237 #define IEEE80211_RADIOTAP_RU_DATA_1_2_1 3 1238 #define IEEE80211_RADIOTAP_RU_DATA_2_2_1 3 1239 #define IEEE80211_RADIOTAP_RU_DATA_1_2_2 3 1240 #define IEEE80211_RADIOTAP_RU_DATA_2_2_2 4 1241 1242 #define IWL_RX_RU_DATA_A1 2 1243 #define IWL_RX_RU_DATA_A2 2 1244 #define IWL_RX_RU_DATA_B1 2 1245 #define IWL_RX_RU_DATA_B2 4 1246 #define IWL_RX_RU_DATA_C1 3 1247 #define IWL_RX_RU_DATA_C2 3 1248 #define IWL_RX_RU_DATA_D1 4 1249 #define IWL_RX_RU_DATA_D2 4 1250 1251 #define IWL_MVM_ENC_EHT_RU(rt_ru, fw_ru) \ 1252 _IWL_MVM_ENC_EHT_RU(IEEE80211_RADIOTAP_RU_DATA_ ## rt_ru, \ 1253 rt_ru, \ 1254 IWL_RX_RU_DATA_ ## fw_ru, \ 1255 fw_ru) 1256 1257 static void iwl_mvm_decode_eht_ext_mu(struct iwl_mvm *mvm, 1258 struct iwl_mvm_rx_phy_data *phy_data, 1259 struct ieee80211_rx_status *rx_status, 1260 struct ieee80211_radiotap_eht *eht, 1261 struct ieee80211_radiotap_eht_usig *usig) 1262 { 1263 if (phy_data->with_data) { 1264 __le32 data1 = phy_data->d1; 1265 __le32 data2 = phy_data->d2; 1266 __le32 data3 = phy_data->d3; 1267 __le32 data4 = phy_data->eht_d4; 1268 __le32 data5 = phy_data->d5; 1269 u32 phy_bw = phy_data->rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK; 1270 1271 IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5, 1272 IWL_RX_PHY_DATA5_EHT_TYPE_AND_COMP, 1273 IEEE80211_RADIOTAP_EHT_USIG2_MU_B0_B1_PPDU_TYPE); 1274 IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5, 1275 IWL_RX_PHY_DATA5_EHT_MU_PUNC_CH_CODE, 1276 IEEE80211_RADIOTAP_EHT_USIG2_MU_B3_B7_PUNCTURED_INFO); 1277 IWL_MVM_ENC_USIG_VALUE_MASK(usig, data4, 1278 IWL_RX_PHY_DATA4_EHT_MU_EXT_SIGB_MCS, 1279 IEEE80211_RADIOTAP_EHT_USIG2_MU_B9_B10_SIG_MCS); 1280 IWL_MVM_ENC_USIG_VALUE_MASK 1281 (usig, data1, IWL_RX_PHY_DATA1_EHT_MU_NUM_SIG_SYM_USIGA2, 1282 IEEE80211_RADIOTAP_EHT_USIG2_MU_B11_B15_EHT_SIG_SYMBOLS); 1283 1284 eht->user_info[0] |= 1285 cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_STA_ID_KNOWN) | 1286 LE32_DEC_ENC(data5, IWL_RX_PHY_DATA5_EHT_MU_STA_ID_USR, 1287 IEEE80211_RADIOTAP_EHT_USER_INFO_STA_ID); 1288 1289 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_NR_NON_OFDMA_USERS_M); 1290 eht->data[7] |= LE32_DEC_ENC 1291 (data5, IWL_RX_PHY_DATA5_EHT_MU_NUM_USR_NON_OFDMA, 1292 IEEE80211_RADIOTAP_EHT_DATA7_NUM_OF_NON_OFDMA_USERS); 1293 1294 /* 1295 * Hardware labels the content channels/RU allocation values 1296 * as follows: 1297 * Content Channel 1 Content Channel 2 1298 * 20 MHz: A1 1299 * 40 MHz: A1 B1 1300 * 80 MHz: A1 C1 B1 D1 1301 * 160 MHz: A1 C1 A2 C2 B1 D1 B2 D2 1302 * 320 MHz: A1 C1 A2 C2 A3 C3 A4 C4 B1 D1 B2 D2 B3 D3 B4 D4 1303 * 1304 * However firmware can only give us A1-D2, so the higher 1305 * frequencies are missing. 1306 */ 1307 1308 switch (phy_bw) { 1309 case RATE_MCS_CHAN_WIDTH_320: 1310 /* additional values are missing in RX metadata */ 1311 case RATE_MCS_CHAN_WIDTH_160: 1312 /* content channel 1 */ 1313 IWL_MVM_ENC_EHT_RU(1_2_1, A2); 1314 IWL_MVM_ENC_EHT_RU(1_2_2, C2); 1315 /* content channel 2 */ 1316 IWL_MVM_ENC_EHT_RU(2_2_1, B2); 1317 IWL_MVM_ENC_EHT_RU(2_2_2, D2); 1318 fallthrough; 1319 case RATE_MCS_CHAN_WIDTH_80: 1320 /* content channel 1 */ 1321 IWL_MVM_ENC_EHT_RU(1_1_2, C1); 1322 /* content channel 2 */ 1323 IWL_MVM_ENC_EHT_RU(2_1_2, D1); 1324 fallthrough; 1325 case RATE_MCS_CHAN_WIDTH_40: 1326 /* content channel 2 */ 1327 IWL_MVM_ENC_EHT_RU(2_1_1, B1); 1328 fallthrough; 1329 case RATE_MCS_CHAN_WIDTH_20: 1330 IWL_MVM_ENC_EHT_RU(1_1_1, A1); 1331 break; 1332 } 1333 } else { 1334 __le32 usig_a1 = phy_data->rx_vec[0]; 1335 __le32 usig_a2 = phy_data->rx_vec[1]; 1336 1337 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a1, 1338 IWL_RX_USIG_A1_DISREGARD, 1339 IEEE80211_RADIOTAP_EHT_USIG1_MU_B20_B24_DISREGARD); 1340 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a1, 1341 IWL_RX_USIG_A1_VALIDATE, 1342 IEEE80211_RADIOTAP_EHT_USIG1_MU_B25_VALIDATE); 1343 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2, 1344 IWL_RX_USIG_A2_EHT_PPDU_TYPE, 1345 IEEE80211_RADIOTAP_EHT_USIG2_MU_B0_B1_PPDU_TYPE); 1346 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2, 1347 IWL_RX_USIG_A2_EHT_USIG2_VALIDATE_B2, 1348 IEEE80211_RADIOTAP_EHT_USIG2_MU_B2_VALIDATE); 1349 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2, 1350 IWL_RX_USIG_A2_EHT_PUNC_CHANNEL, 1351 IEEE80211_RADIOTAP_EHT_USIG2_MU_B3_B7_PUNCTURED_INFO); 1352 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2, 1353 IWL_RX_USIG_A2_EHT_USIG2_VALIDATE_B8, 1354 IEEE80211_RADIOTAP_EHT_USIG2_MU_B8_VALIDATE); 1355 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2, 1356 IWL_RX_USIG_A2_EHT_SIG_MCS, 1357 IEEE80211_RADIOTAP_EHT_USIG2_MU_B9_B10_SIG_MCS); 1358 IWL_MVM_ENC_USIG_VALUE_MASK 1359 (usig, usig_a2, IWL_RX_USIG_A2_EHT_SIG_SYM_NUM, 1360 IEEE80211_RADIOTAP_EHT_USIG2_MU_B11_B15_EHT_SIG_SYMBOLS); 1361 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2, 1362 IWL_RX_USIG_A2_EHT_CRC_OK, 1363 IEEE80211_RADIOTAP_EHT_USIG2_MU_B16_B19_CRC); 1364 } 1365 } 1366 1367 static void iwl_mvm_decode_eht_ext_tb(struct iwl_mvm *mvm, 1368 struct iwl_mvm_rx_phy_data *phy_data, 1369 struct ieee80211_rx_status *rx_status, 1370 struct ieee80211_radiotap_eht *eht, 1371 struct ieee80211_radiotap_eht_usig *usig) 1372 { 1373 if (phy_data->with_data) { 1374 __le32 data5 = phy_data->d5; 1375 1376 IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5, 1377 IWL_RX_PHY_DATA5_EHT_TYPE_AND_COMP, 1378 IEEE80211_RADIOTAP_EHT_USIG2_TB_B0_B1_PPDU_TYPE); 1379 IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5, 1380 IWL_RX_PHY_DATA5_EHT_TB_SPATIAL_REUSE1, 1381 IEEE80211_RADIOTAP_EHT_USIG2_TB_B3_B6_SPATIAL_REUSE_1); 1382 1383 IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5, 1384 IWL_RX_PHY_DATA5_EHT_TB_SPATIAL_REUSE2, 1385 IEEE80211_RADIOTAP_EHT_USIG2_TB_B7_B10_SPATIAL_REUSE_2); 1386 } else { 1387 __le32 usig_a1 = phy_data->rx_vec[0]; 1388 __le32 usig_a2 = phy_data->rx_vec[1]; 1389 1390 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a1, 1391 IWL_RX_USIG_A1_DISREGARD, 1392 IEEE80211_RADIOTAP_EHT_USIG1_TB_B20_B25_DISREGARD); 1393 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2, 1394 IWL_RX_USIG_A2_EHT_PPDU_TYPE, 1395 IEEE80211_RADIOTAP_EHT_USIG2_TB_B0_B1_PPDU_TYPE); 1396 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2, 1397 IWL_RX_USIG_A2_EHT_USIG2_VALIDATE_B2, 1398 IEEE80211_RADIOTAP_EHT_USIG2_TB_B2_VALIDATE); 1399 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2, 1400 IWL_RX_USIG_A2_EHT_TRIG_SPATIAL_REUSE_1, 1401 IEEE80211_RADIOTAP_EHT_USIG2_TB_B3_B6_SPATIAL_REUSE_1); 1402 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2, 1403 IWL_RX_USIG_A2_EHT_TRIG_SPATIAL_REUSE_2, 1404 IEEE80211_RADIOTAP_EHT_USIG2_TB_B7_B10_SPATIAL_REUSE_2); 1405 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2, 1406 IWL_RX_USIG_A2_EHT_TRIG_USIG2_DISREGARD, 1407 IEEE80211_RADIOTAP_EHT_USIG2_TB_B11_B15_DISREGARD); 1408 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2, 1409 IWL_RX_USIG_A2_EHT_CRC_OK, 1410 IEEE80211_RADIOTAP_EHT_USIG2_TB_B16_B19_CRC); 1411 } 1412 } 1413 1414 static void iwl_mvm_decode_eht_ru(struct iwl_mvm *mvm, 1415 struct ieee80211_rx_status *rx_status, 1416 struct ieee80211_radiotap_eht *eht) 1417 { 1418 u32 ru = le32_get_bits(eht->data[8], 1419 IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_B7_B1); 1420 enum nl80211_eht_ru_alloc nl_ru; 1421 1422 /* Using D1.5 Table 9-53a - Encoding of PS160 and RU Allocation subfields 1423 * in an EHT variant User Info field 1424 */ 1425 1426 switch (ru) { 1427 case 0 ... 36: 1428 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_26; 1429 break; 1430 case 37 ... 52: 1431 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_52; 1432 break; 1433 case 53 ... 60: 1434 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_106; 1435 break; 1436 case 61 ... 64: 1437 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_242; 1438 break; 1439 case 65 ... 66: 1440 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_484; 1441 break; 1442 case 67: 1443 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_996; 1444 break; 1445 case 68: 1446 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_2x996; 1447 break; 1448 case 69: 1449 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_4x996; 1450 break; 1451 case 70 ... 81: 1452 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_52P26; 1453 break; 1454 case 82 ... 89: 1455 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_106P26; 1456 break; 1457 case 90 ... 93: 1458 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_484P242; 1459 break; 1460 case 94 ... 95: 1461 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_996P484; 1462 break; 1463 case 96 ... 99: 1464 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_996P484P242; 1465 break; 1466 case 100 ... 103: 1467 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_2x996P484; 1468 break; 1469 case 104: 1470 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_3x996; 1471 break; 1472 case 105 ... 106: 1473 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_3x996P484; 1474 break; 1475 default: 1476 return; 1477 } 1478 1479 rx_status->bw = RATE_INFO_BW_EHT_RU; 1480 rx_status->eht.ru = nl_ru; 1481 } 1482 1483 static void iwl_mvm_decode_eht_phy_data(struct iwl_mvm *mvm, 1484 struct iwl_mvm_rx_phy_data *phy_data, 1485 struct ieee80211_rx_status *rx_status, 1486 struct ieee80211_radiotap_eht *eht, 1487 struct ieee80211_radiotap_eht_usig *usig) 1488 1489 { 1490 __le32 data0 = phy_data->d0; 1491 __le32 data1 = phy_data->d1; 1492 __le32 usig_a1 = phy_data->rx_vec[0]; 1493 u8 info_type = phy_data->info_type; 1494 1495 /* Not in EHT range */ 1496 if (info_type < IWL_RX_PHY_INFO_TYPE_EHT_MU || 1497 info_type > IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT) 1498 return; 1499 1500 usig->common |= cpu_to_le32 1501 (IEEE80211_RADIOTAP_EHT_USIG_COMMON_UL_DL_KNOWN | 1502 IEEE80211_RADIOTAP_EHT_USIG_COMMON_BSS_COLOR_KNOWN); 1503 if (phy_data->with_data) { 1504 usig->common |= LE32_DEC_ENC(data0, 1505 IWL_RX_PHY_DATA0_EHT_UPLINK, 1506 IEEE80211_RADIOTAP_EHT_USIG_COMMON_UL_DL); 1507 usig->common |= LE32_DEC_ENC(data0, 1508 IWL_RX_PHY_DATA0_EHT_BSS_COLOR_MASK, 1509 IEEE80211_RADIOTAP_EHT_USIG_COMMON_BSS_COLOR); 1510 } else { 1511 usig->common |= LE32_DEC_ENC(usig_a1, 1512 IWL_RX_USIG_A1_UL_FLAG, 1513 IEEE80211_RADIOTAP_EHT_USIG_COMMON_UL_DL); 1514 usig->common |= LE32_DEC_ENC(usig_a1, 1515 IWL_RX_USIG_A1_BSS_COLOR, 1516 IEEE80211_RADIOTAP_EHT_USIG_COMMON_BSS_COLOR); 1517 } 1518 1519 if (fw_has_capa(&mvm->fw->ucode_capa, 1520 IWL_UCODE_TLV_CAPA_SNIFF_VALIDATE_SUPPORT)) { 1521 usig->common |= 1522 cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_VALIDATE_BITS_CHECKED); 1523 usig->common |= 1524 LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_VALIDATE, 1525 IEEE80211_RADIOTAP_EHT_USIG_COMMON_VALIDATE_BITS_OK); 1526 } 1527 1528 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_SPATIAL_REUSE); 1529 eht->data[0] |= LE32_DEC_ENC(data0, 1530 IWL_RX_PHY_DATA0_ETH_SPATIAL_REUSE_MASK, 1531 IEEE80211_RADIOTAP_EHT_DATA0_SPATIAL_REUSE); 1532 1533 /* All RU allocating size/index is in TB format */ 1534 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_RU_ALLOC_TB_FMT); 1535 eht->data[8] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PS160, 1536 IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_PS_160); 1537 eht->data[8] |= LE32_DEC_ENC(data1, IWL_RX_PHY_DATA1_EHT_RU_ALLOC_B0, 1538 IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_B0); 1539 eht->data[8] |= LE32_DEC_ENC(data1, IWL_RX_PHY_DATA1_EHT_RU_ALLOC_B1_B7, 1540 IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_B7_B1); 1541 1542 iwl_mvm_decode_eht_ru(mvm, rx_status, eht); 1543 1544 /* We only get here in case of IWL_RX_MPDU_PHY_TSF_OVERLOAD is set 1545 * which is on only in case of monitor mode so no need to check monitor 1546 * mode 1547 */ 1548 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_PRIMARY_80); 1549 eht->data[1] |= 1550 le32_encode_bits(mvm->monitor_p80, 1551 IEEE80211_RADIOTAP_EHT_DATA1_PRIMARY_80); 1552 1553 usig->common |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_TXOP_KNOWN); 1554 if (phy_data->with_data) 1555 usig->common |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_TXOP_DUR_MASK, 1556 IEEE80211_RADIOTAP_EHT_USIG_COMMON_TXOP); 1557 else 1558 usig->common |= LE32_DEC_ENC(usig_a1, IWL_RX_USIG_A1_TXOP_DURATION, 1559 IEEE80211_RADIOTAP_EHT_USIG_COMMON_TXOP); 1560 1561 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_LDPC_EXTRA_SYM_OM); 1562 eht->data[0] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_LDPC_EXT_SYM, 1563 IEEE80211_RADIOTAP_EHT_DATA0_LDPC_EXTRA_SYM_OM); 1564 1565 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_PRE_PADD_FACOR_OM); 1566 eht->data[0] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PRE_FEC_PAD_MASK, 1567 IEEE80211_RADIOTAP_EHT_DATA0_PRE_PADD_FACOR_OM); 1568 1569 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_PE_DISAMBIGUITY_OM); 1570 eht->data[0] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PE_DISAMBIG, 1571 IEEE80211_RADIOTAP_EHT_DATA0_PE_DISAMBIGUITY_OM); 1572 1573 /* TODO: what about IWL_RX_PHY_DATA0_EHT_BW320_SLOT */ 1574 1575 if (!le32_get_bits(data0, IWL_RX_PHY_DATA0_EHT_SIGA_CRC_OK)) 1576 usig->common |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_BAD_USIG_CRC); 1577 1578 usig->common |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_PHY_VER_KNOWN); 1579 usig->common |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PHY_VER, 1580 IEEE80211_RADIOTAP_EHT_USIG_COMMON_PHY_VER); 1581 1582 /* 1583 * TODO: what about TB - IWL_RX_PHY_DATA1_EHT_TB_PILOT_TYPE, 1584 * IWL_RX_PHY_DATA1_EHT_TB_LOW_SS 1585 */ 1586 1587 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_EHT_LTF); 1588 eht->data[0] |= LE32_DEC_ENC(data1, IWL_RX_PHY_DATA1_EHT_SIG_LTF_NUM, 1589 IEEE80211_RADIOTAP_EHT_DATA0_EHT_LTF); 1590 1591 if (info_type == IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT || 1592 info_type == IWL_RX_PHY_INFO_TYPE_EHT_TB) 1593 iwl_mvm_decode_eht_ext_tb(mvm, phy_data, rx_status, eht, usig); 1594 1595 if (info_type == IWL_RX_PHY_INFO_TYPE_EHT_MU_EXT || 1596 info_type == IWL_RX_PHY_INFO_TYPE_EHT_MU) 1597 iwl_mvm_decode_eht_ext_mu(mvm, phy_data, rx_status, eht, usig); 1598 } 1599 1600 static void iwl_mvm_rx_eht(struct iwl_mvm *mvm, struct sk_buff *skb, 1601 struct iwl_mvm_rx_phy_data *phy_data, 1602 int queue) 1603 { 1604 struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); 1605 1606 struct ieee80211_radiotap_eht *eht; 1607 struct ieee80211_radiotap_eht_usig *usig; 1608 size_t eht_len = sizeof(*eht); 1609 1610 u32 rate_n_flags = phy_data->rate_n_flags; 1611 u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK; 1612 /* EHT and HE have the same valus for LTF */ 1613 u8 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_UNKNOWN; 1614 u16 phy_info = phy_data->phy_info; 1615 u32 bw; 1616 1617 /* u32 for 1 user_info */ 1618 if (phy_data->with_data) 1619 eht_len += sizeof(u32); 1620 1621 eht = iwl_mvm_radiotap_put_tlv(skb, IEEE80211_RADIOTAP_EHT, eht_len); 1622 1623 usig = iwl_mvm_radiotap_put_tlv(skb, IEEE80211_RADIOTAP_EHT_USIG, 1624 sizeof(*usig)); 1625 rx_status->flag |= RX_FLAG_RADIOTAP_TLV_AT_END; 1626 usig->common |= 1627 cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_BW_KNOWN); 1628 1629 /* specific handling for 320MHz */ 1630 bw = FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK, rate_n_flags); 1631 if (bw == RATE_MCS_CHAN_WIDTH_320_VAL) 1632 bw += FIELD_GET(IWL_RX_PHY_DATA0_EHT_BW320_SLOT, 1633 le32_to_cpu(phy_data->d0)); 1634 1635 usig->common |= cpu_to_le32 1636 (FIELD_PREP(IEEE80211_RADIOTAP_EHT_USIG_COMMON_BW, bw)); 1637 1638 /* report the AMPDU-EOF bit on single frames */ 1639 if (!queue && !(phy_info & IWL_RX_MPDU_PHY_AMPDU)) { 1640 rx_status->flag |= RX_FLAG_AMPDU_DETAILS; 1641 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN; 1642 if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_EHT_DELIM_EOF)) 1643 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT; 1644 } 1645 1646 /* update aggregation data for monitor sake on default queue */ 1647 if (!queue && (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) && 1648 (phy_info & IWL_RX_MPDU_PHY_AMPDU) && phy_data->first_subframe) { 1649 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN; 1650 if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_EHT_DELIM_EOF)) 1651 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT; 1652 } 1653 1654 if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) 1655 iwl_mvm_decode_eht_phy_data(mvm, phy_data, rx_status, eht, usig); 1656 1657 #define CHECK_TYPE(F) \ 1658 BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA1_FORMAT_ ## F != \ 1659 (RATE_MCS_HE_TYPE_ ## F >> RATE_MCS_HE_TYPE_POS)) 1660 1661 CHECK_TYPE(SU); 1662 CHECK_TYPE(EXT_SU); 1663 CHECK_TYPE(MU); 1664 CHECK_TYPE(TRIG); 1665 1666 switch (FIELD_GET(RATE_MCS_HE_GI_LTF_MSK, rate_n_flags)) { 1667 case 0: 1668 if (he_type == RATE_MCS_HE_TYPE_TRIG) { 1669 rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_1_6; 1670 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_1X; 1671 } else { 1672 rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_0_8; 1673 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X; 1674 } 1675 break; 1676 case 1: 1677 rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_1_6; 1678 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X; 1679 break; 1680 case 2: 1681 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X; 1682 if (he_type == RATE_MCS_HE_TYPE_TRIG) 1683 rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_3_2; 1684 else 1685 rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_0_8; 1686 break; 1687 case 3: 1688 if (he_type != RATE_MCS_HE_TYPE_TRIG) { 1689 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X; 1690 rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_3_2; 1691 } 1692 break; 1693 default: 1694 /* nothing here */ 1695 break; 1696 } 1697 1698 if (ltf != IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_UNKNOWN) { 1699 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_GI); 1700 eht->data[0] |= cpu_to_le32 1701 (FIELD_PREP(IEEE80211_RADIOTAP_EHT_DATA0_LTF, 1702 ltf) | 1703 FIELD_PREP(IEEE80211_RADIOTAP_EHT_DATA0_GI, 1704 rx_status->eht.gi)); 1705 } 1706 1707 1708 if (!phy_data->with_data) { 1709 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_NSS_S | 1710 IEEE80211_RADIOTAP_EHT_KNOWN_BEAMFORMED_S); 1711 eht->data[7] |= 1712 le32_encode_bits(le32_get_bits(phy_data->rx_vec[2], 1713 RX_NO_DATA_RX_VEC2_EHT_NSTS_MSK), 1714 IEEE80211_RADIOTAP_EHT_DATA7_NSS_S); 1715 if (rate_n_flags & RATE_MCS_BF_MSK) 1716 eht->data[7] |= 1717 cpu_to_le32(IEEE80211_RADIOTAP_EHT_DATA7_BEAMFORMED_S); 1718 } else { 1719 eht->user_info[0] |= 1720 cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_MCS_KNOWN | 1721 IEEE80211_RADIOTAP_EHT_USER_INFO_CODING_KNOWN | 1722 IEEE80211_RADIOTAP_EHT_USER_INFO_NSS_KNOWN_O | 1723 IEEE80211_RADIOTAP_EHT_USER_INFO_BEAMFORMING_KNOWN_O | 1724 IEEE80211_RADIOTAP_EHT_USER_INFO_DATA_FOR_USER); 1725 1726 if (rate_n_flags & RATE_MCS_BF_MSK) 1727 eht->user_info[0] |= 1728 cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_BEAMFORMING_O); 1729 1730 if (rate_n_flags & RATE_MCS_LDPC_MSK) 1731 eht->user_info[0] |= 1732 cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_CODING); 1733 1734 eht->user_info[0] |= cpu_to_le32 1735 (FIELD_PREP(IEEE80211_RADIOTAP_EHT_USER_INFO_MCS, 1736 FIELD_GET(RATE_VHT_MCS_RATE_CODE_MSK, 1737 rate_n_flags)) | 1738 FIELD_PREP(IEEE80211_RADIOTAP_EHT_USER_INFO_NSS_O, 1739 FIELD_GET(RATE_MCS_NSS_MSK, rate_n_flags))); 1740 } 1741 } 1742 1743 static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct sk_buff *skb, 1744 struct iwl_mvm_rx_phy_data *phy_data, 1745 int queue) 1746 { 1747 struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); 1748 struct ieee80211_radiotap_he *he = NULL; 1749 struct ieee80211_radiotap_he_mu *he_mu = NULL; 1750 u32 rate_n_flags = phy_data->rate_n_flags; 1751 u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK; 1752 u8 ltf; 1753 static const struct ieee80211_radiotap_he known = { 1754 .data1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_DATA_MCS_KNOWN | 1755 IEEE80211_RADIOTAP_HE_DATA1_DATA_DCM_KNOWN | 1756 IEEE80211_RADIOTAP_HE_DATA1_STBC_KNOWN | 1757 IEEE80211_RADIOTAP_HE_DATA1_CODING_KNOWN), 1758 .data2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_GI_KNOWN | 1759 IEEE80211_RADIOTAP_HE_DATA2_TXBF_KNOWN), 1760 }; 1761 static const struct ieee80211_radiotap_he_mu mu_known = { 1762 .flags1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS_KNOWN | 1763 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM_KNOWN | 1764 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_SYMS_USERS_KNOWN | 1765 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_COMP_KNOWN), 1766 .flags2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW_KNOWN | 1767 IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_KNOWN), 1768 }; 1769 u16 phy_info = phy_data->phy_info; 1770 1771 he = skb_put_data(skb, &known, sizeof(known)); 1772 rx_status->flag |= RX_FLAG_RADIOTAP_HE; 1773 1774 if (phy_data->info_type == IWL_RX_PHY_INFO_TYPE_HE_MU || 1775 phy_data->info_type == IWL_RX_PHY_INFO_TYPE_HE_MU_EXT) { 1776 he_mu = skb_put_data(skb, &mu_known, sizeof(mu_known)); 1777 rx_status->flag |= RX_FLAG_RADIOTAP_HE_MU; 1778 } 1779 1780 /* report the AMPDU-EOF bit on single frames */ 1781 if (!queue && !(phy_info & IWL_RX_MPDU_PHY_AMPDU)) { 1782 rx_status->flag |= RX_FLAG_AMPDU_DETAILS; 1783 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN; 1784 if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_HE_DELIM_EOF)) 1785 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT; 1786 } 1787 1788 if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) 1789 iwl_mvm_decode_he_phy_data(mvm, phy_data, he, he_mu, rx_status, 1790 queue); 1791 1792 /* update aggregation data for monitor sake on default queue */ 1793 if (!queue && (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) && 1794 (phy_info & IWL_RX_MPDU_PHY_AMPDU) && phy_data->first_subframe) { 1795 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN; 1796 if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_EHT_DELIM_EOF)) 1797 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT; 1798 } 1799 1800 if (he_type == RATE_MCS_HE_TYPE_EXT_SU && 1801 rate_n_flags & RATE_MCS_HE_106T_MSK) { 1802 rx_status->bw = RATE_INFO_BW_HE_RU; 1803 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106; 1804 } 1805 1806 /* actually data is filled in mac80211 */ 1807 if (he_type == RATE_MCS_HE_TYPE_SU || 1808 he_type == RATE_MCS_HE_TYPE_EXT_SU) 1809 he->data1 |= 1810 cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN); 1811 1812 #define CHECK_TYPE(F) \ 1813 BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA1_FORMAT_ ## F != \ 1814 (RATE_MCS_HE_TYPE_ ## F >> RATE_MCS_HE_TYPE_POS)) 1815 1816 CHECK_TYPE(SU); 1817 CHECK_TYPE(EXT_SU); 1818 CHECK_TYPE(MU); 1819 CHECK_TYPE(TRIG); 1820 1821 he->data1 |= cpu_to_le16(he_type >> RATE_MCS_HE_TYPE_POS); 1822 1823 if (rate_n_flags & RATE_MCS_BF_MSK) 1824 he->data5 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA5_TXBF); 1825 1826 switch ((rate_n_flags & RATE_MCS_HE_GI_LTF_MSK) >> 1827 RATE_MCS_HE_GI_LTF_POS) { 1828 case 0: 1829 if (he_type == RATE_MCS_HE_TYPE_TRIG) 1830 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 1831 else 1832 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 1833 if (he_type == RATE_MCS_HE_TYPE_MU) 1834 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X; 1835 else 1836 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_1X; 1837 break; 1838 case 1: 1839 if (he_type == RATE_MCS_HE_TYPE_TRIG) 1840 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 1841 else 1842 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 1843 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X; 1844 break; 1845 case 2: 1846 if (he_type == RATE_MCS_HE_TYPE_TRIG) { 1847 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 1848 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X; 1849 } else { 1850 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 1851 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X; 1852 } 1853 break; 1854 case 3: 1855 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 1856 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X; 1857 break; 1858 case 4: 1859 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 1860 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X; 1861 break; 1862 default: 1863 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_UNKNOWN; 1864 } 1865 1866 he->data5 |= le16_encode_bits(ltf, 1867 IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE); 1868 } 1869 1870 static void iwl_mvm_decode_lsig(struct sk_buff *skb, 1871 struct iwl_mvm_rx_phy_data *phy_data) 1872 { 1873 struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); 1874 struct ieee80211_radiotap_lsig *lsig; 1875 1876 switch (phy_data->info_type) { 1877 case IWL_RX_PHY_INFO_TYPE_HT: 1878 case IWL_RX_PHY_INFO_TYPE_VHT_SU: 1879 case IWL_RX_PHY_INFO_TYPE_VHT_MU: 1880 case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT: 1881 case IWL_RX_PHY_INFO_TYPE_HE_SU: 1882 case IWL_RX_PHY_INFO_TYPE_HE_MU: 1883 case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT: 1884 case IWL_RX_PHY_INFO_TYPE_HE_TB: 1885 case IWL_RX_PHY_INFO_TYPE_EHT_MU: 1886 case IWL_RX_PHY_INFO_TYPE_EHT_TB: 1887 case IWL_RX_PHY_INFO_TYPE_EHT_MU_EXT: 1888 case IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT: 1889 lsig = skb_put(skb, sizeof(*lsig)); 1890 lsig->data1 = cpu_to_le16(IEEE80211_RADIOTAP_LSIG_DATA1_LENGTH_KNOWN); 1891 lsig->data2 = le16_encode_bits(le32_get_bits(phy_data->d1, 1892 IWL_RX_PHY_DATA1_LSIG_LEN_MASK), 1893 IEEE80211_RADIOTAP_LSIG_DATA2_LENGTH); 1894 rx_status->flag |= RX_FLAG_RADIOTAP_LSIG; 1895 break; 1896 default: 1897 break; 1898 } 1899 } 1900 1901 static inline u8 iwl_mvm_nl80211_band_from_rx_msdu(u8 phy_band) 1902 { 1903 switch (phy_band) { 1904 case PHY_BAND_24: 1905 return NL80211_BAND_2GHZ; 1906 case PHY_BAND_5: 1907 return NL80211_BAND_5GHZ; 1908 case PHY_BAND_6: 1909 return NL80211_BAND_6GHZ; 1910 default: 1911 WARN_ONCE(1, "Unsupported phy band (%u)\n", phy_band); 1912 return NL80211_BAND_5GHZ; 1913 } 1914 } 1915 1916 struct iwl_rx_sta_csa { 1917 bool all_sta_unblocked; 1918 struct ieee80211_vif *vif; 1919 }; 1920 1921 static void iwl_mvm_rx_get_sta_block_tx(void *data, struct ieee80211_sta *sta) 1922 { 1923 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1924 struct iwl_rx_sta_csa *rx_sta_csa = data; 1925 1926 if (mvmsta->vif != rx_sta_csa->vif) 1927 return; 1928 1929 if (mvmsta->disable_tx) 1930 rx_sta_csa->all_sta_unblocked = false; 1931 } 1932 1933 /* 1934 * Note: requires also rx_status->band to be prefilled, as well 1935 * as phy_data (apart from phy_data->info_type) 1936 */ 1937 static void iwl_mvm_rx_fill_status(struct iwl_mvm *mvm, 1938 struct sk_buff *skb, 1939 struct iwl_mvm_rx_phy_data *phy_data, 1940 int queue) 1941 { 1942 struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); 1943 u32 rate_n_flags = phy_data->rate_n_flags; 1944 u8 stbc = u32_get_bits(rate_n_flags, RATE_MCS_STBC_MSK); 1945 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 1946 bool is_sgi; 1947 1948 phy_data->info_type = IWL_RX_PHY_INFO_TYPE_NONE; 1949 1950 if (phy_data->phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) 1951 phy_data->info_type = 1952 le32_get_bits(phy_data->d1, 1953 IWL_RX_PHY_DATA1_INFO_TYPE_MASK); 1954 1955 /* This may be overridden by iwl_mvm_rx_he() to HE_RU */ 1956 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 1957 case RATE_MCS_CHAN_WIDTH_20: 1958 break; 1959 case RATE_MCS_CHAN_WIDTH_40: 1960 rx_status->bw = RATE_INFO_BW_40; 1961 break; 1962 case RATE_MCS_CHAN_WIDTH_80: 1963 rx_status->bw = RATE_INFO_BW_80; 1964 break; 1965 case RATE_MCS_CHAN_WIDTH_160: 1966 rx_status->bw = RATE_INFO_BW_160; 1967 break; 1968 case RATE_MCS_CHAN_WIDTH_320: 1969 rx_status->bw = RATE_INFO_BW_320; 1970 break; 1971 } 1972 1973 /* must be before L-SIG data */ 1974 if (format == RATE_MCS_HE_MSK) 1975 iwl_mvm_rx_he(mvm, skb, phy_data, queue); 1976 1977 iwl_mvm_decode_lsig(skb, phy_data); 1978 1979 rx_status->device_timestamp = phy_data->gp2_on_air_rise; 1980 rx_status->freq = ieee80211_channel_to_frequency(phy_data->channel, 1981 rx_status->band); 1982 iwl_mvm_get_signal_strength(mvm, rx_status, rate_n_flags, 1983 phy_data->energy_a, phy_data->energy_b); 1984 1985 /* using TLV format and must be after all fixed len fields */ 1986 if (format == RATE_MCS_EHT_MSK) 1987 iwl_mvm_rx_eht(mvm, skb, phy_data, queue); 1988 1989 if (unlikely(mvm->monitor_on)) 1990 iwl_mvm_add_rtap_sniffer_config(mvm, skb); 1991 1992 is_sgi = format == RATE_MCS_HE_MSK ? 1993 iwl_he_is_sgi(rate_n_flags) : 1994 rate_n_flags & RATE_MCS_SGI_MSK; 1995 1996 if (!(format == RATE_MCS_CCK_MSK) && is_sgi) 1997 rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI; 1998 1999 if (rate_n_flags & RATE_MCS_LDPC_MSK) 2000 rx_status->enc_flags |= RX_ENC_FLAG_LDPC; 2001 2002 switch (format) { 2003 case RATE_MCS_VHT_MSK: 2004 rx_status->encoding = RX_ENC_VHT; 2005 break; 2006 case RATE_MCS_HE_MSK: 2007 rx_status->encoding = RX_ENC_HE; 2008 rx_status->he_dcm = 2009 !!(rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK); 2010 break; 2011 case RATE_MCS_EHT_MSK: 2012 rx_status->encoding = RX_ENC_EHT; 2013 break; 2014 } 2015 2016 switch (format) { 2017 case RATE_MCS_HT_MSK: 2018 rx_status->encoding = RX_ENC_HT; 2019 rx_status->rate_idx = RATE_HT_MCS_INDEX(rate_n_flags); 2020 rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT; 2021 break; 2022 case RATE_MCS_VHT_MSK: 2023 case RATE_MCS_HE_MSK: 2024 case RATE_MCS_EHT_MSK: 2025 rx_status->nss = 2026 u32_get_bits(rate_n_flags, RATE_MCS_NSS_MSK) + 1; 2027 rx_status->rate_idx = rate_n_flags & RATE_MCS_CODE_MSK; 2028 rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT; 2029 break; 2030 default: { 2031 int rate = iwl_mvm_legacy_hw_idx_to_mac80211_idx(rate_n_flags, 2032 rx_status->band); 2033 2034 rx_status->rate_idx = rate; 2035 2036 if ((rate < 0 || rate > 0xFF)) { 2037 rx_status->rate_idx = 0; 2038 if (net_ratelimit()) 2039 IWL_ERR(mvm, "Invalid rate flags 0x%x, band %d,\n", 2040 rate_n_flags, rx_status->band); 2041 } 2042 2043 break; 2044 } 2045 } 2046 } 2047 2048 void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi, 2049 struct iwl_rx_cmd_buffer *rxb, int queue) 2050 { 2051 struct ieee80211_rx_status *rx_status; 2052 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2053 struct iwl_rx_mpdu_desc *desc = (void *)pkt->data; 2054 struct ieee80211_hdr *hdr; 2055 u32 len; 2056 u32 pkt_len = iwl_rx_packet_payload_len(pkt); 2057 struct ieee80211_sta *sta = NULL; 2058 struct ieee80211_link_sta *link_sta = NULL; 2059 struct sk_buff *skb; 2060 u8 crypt_len = 0; 2061 size_t desc_size; 2062 struct iwl_mvm_rx_phy_data phy_data = {}; 2063 u32 format; 2064 2065 if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))) 2066 return; 2067 2068 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 2069 desc_size = sizeof(*desc); 2070 else 2071 desc_size = IWL_RX_DESC_SIZE_V1; 2072 2073 if (unlikely(pkt_len < desc_size)) { 2074 IWL_DEBUG_DROP(mvm, "Bad REPLY_RX_MPDU_CMD size\n"); 2075 return; 2076 } 2077 2078 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) { 2079 phy_data.rate_n_flags = le32_to_cpu(desc->v3.rate_n_flags); 2080 phy_data.channel = desc->v3.channel; 2081 phy_data.gp2_on_air_rise = le32_to_cpu(desc->v3.gp2_on_air_rise); 2082 phy_data.energy_a = desc->v3.energy_a; 2083 phy_data.energy_b = desc->v3.energy_b; 2084 2085 phy_data.d0 = desc->v3.phy_data0; 2086 phy_data.d1 = desc->v3.phy_data1; 2087 phy_data.d2 = desc->v3.phy_data2; 2088 phy_data.d3 = desc->v3.phy_data3; 2089 phy_data.eht_d4 = desc->phy_eht_data4; 2090 phy_data.d5 = desc->v3.phy_data5; 2091 } else { 2092 phy_data.rate_n_flags = le32_to_cpu(desc->v1.rate_n_flags); 2093 phy_data.channel = desc->v1.channel; 2094 phy_data.gp2_on_air_rise = le32_to_cpu(desc->v1.gp2_on_air_rise); 2095 phy_data.energy_a = desc->v1.energy_a; 2096 phy_data.energy_b = desc->v1.energy_b; 2097 2098 phy_data.d0 = desc->v1.phy_data0; 2099 phy_data.d1 = desc->v1.phy_data1; 2100 phy_data.d2 = desc->v1.phy_data2; 2101 phy_data.d3 = desc->v1.phy_data3; 2102 } 2103 2104 if (iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, 2105 REPLY_RX_MPDU_CMD, 0) < 4) { 2106 phy_data.rate_n_flags = iwl_new_rate_from_v1(phy_data.rate_n_flags); 2107 IWL_DEBUG_DROP(mvm, "Got old format rate, converting. New rate: 0x%x\n", 2108 phy_data.rate_n_flags); 2109 } 2110 2111 format = phy_data.rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 2112 2113 len = le16_to_cpu(desc->mpdu_len); 2114 2115 if (unlikely(len + desc_size > pkt_len)) { 2116 IWL_DEBUG_DROP(mvm, "FW lied about packet len\n"); 2117 return; 2118 } 2119 2120 phy_data.with_data = true; 2121 phy_data.phy_info = le16_to_cpu(desc->phy_info); 2122 phy_data.d4 = desc->phy_data4; 2123 2124 hdr = (void *)(pkt->data + desc_size); 2125 /* Dont use dev_alloc_skb(), we'll have enough headroom once 2126 * ieee80211_hdr pulled. 2127 */ 2128 skb = alloc_skb(128, GFP_ATOMIC); 2129 if (!skb) { 2130 IWL_ERR(mvm, "alloc_skb failed\n"); 2131 return; 2132 } 2133 2134 if (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_PAD) { 2135 /* 2136 * If the device inserted padding it means that (it thought) 2137 * the 802.11 header wasn't a multiple of 4 bytes long. In 2138 * this case, reserve two bytes at the start of the SKB to 2139 * align the payload properly in case we end up copying it. 2140 */ 2141 skb_reserve(skb, 2); 2142 } 2143 2144 rx_status = IEEE80211_SKB_RXCB(skb); 2145 2146 /* 2147 * Keep packets with CRC errors (and with overrun) for monitor mode 2148 * (otherwise the firmware discards them) but mark them as bad. 2149 */ 2150 if (!(desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_CRC_OK)) || 2151 !(desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_OVERRUN_OK))) { 2152 IWL_DEBUG_RX(mvm, "Bad CRC or FIFO: 0x%08X.\n", 2153 le32_to_cpu(desc->status)); 2154 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC; 2155 } 2156 2157 /* set the preamble flag if appropriate */ 2158 if (format == RATE_MCS_CCK_MSK && 2159 phy_data.phy_info & IWL_RX_MPDU_PHY_SHORT_PREAMBLE) 2160 rx_status->enc_flags |= RX_ENC_FLAG_SHORTPRE; 2161 2162 if (likely(!(phy_data.phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD))) { 2163 u64 tsf_on_air_rise; 2164 2165 if (mvm->trans->trans_cfg->device_family >= 2166 IWL_DEVICE_FAMILY_AX210) 2167 tsf_on_air_rise = le64_to_cpu(desc->v3.tsf_on_air_rise); 2168 else 2169 tsf_on_air_rise = le64_to_cpu(desc->v1.tsf_on_air_rise); 2170 2171 rx_status->mactime = tsf_on_air_rise; 2172 /* TSF as indicated by the firmware is at INA time */ 2173 rx_status->flag |= RX_FLAG_MACTIME_PLCP_START; 2174 } 2175 2176 if (iwl_mvm_is_band_in_rx_supported(mvm)) { 2177 u8 band = BAND_IN_RX_STATUS(desc->mac_phy_idx); 2178 2179 rx_status->band = iwl_mvm_nl80211_band_from_rx_msdu(band); 2180 } else { 2181 rx_status->band = phy_data.channel > 14 ? NL80211_BAND_5GHZ : 2182 NL80211_BAND_2GHZ; 2183 } 2184 2185 /* update aggregation data for monitor sake on default queue */ 2186 if (!queue && (phy_data.phy_info & IWL_RX_MPDU_PHY_AMPDU)) { 2187 bool toggle_bit; 2188 2189 toggle_bit = phy_data.phy_info & IWL_RX_MPDU_PHY_AMPDU_TOGGLE; 2190 rx_status->flag |= RX_FLAG_AMPDU_DETAILS; 2191 /* 2192 * Toggle is switched whenever new aggregation starts. Make 2193 * sure ampdu_reference is never 0 so we can later use it to 2194 * see if the frame was really part of an A-MPDU or not. 2195 */ 2196 if (toggle_bit != mvm->ampdu_toggle) { 2197 mvm->ampdu_ref++; 2198 if (mvm->ampdu_ref == 0) 2199 mvm->ampdu_ref++; 2200 mvm->ampdu_toggle = toggle_bit; 2201 phy_data.first_subframe = true; 2202 } 2203 rx_status->ampdu_reference = mvm->ampdu_ref; 2204 } 2205 2206 rcu_read_lock(); 2207 2208 if (desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_SRC_STA_FOUND)) { 2209 u8 id = le32_get_bits(desc->status, IWL_RX_MPDU_STATUS_STA_ID); 2210 2211 if (!WARN_ON_ONCE(id >= mvm->fw->ucode_capa.num_stations)) { 2212 sta = rcu_dereference(mvm->fw_id_to_mac_id[id]); 2213 if (IS_ERR(sta)) 2214 sta = NULL; 2215 link_sta = rcu_dereference(mvm->fw_id_to_link_sta[id]); 2216 } 2217 } else if (!is_multicast_ether_addr(hdr->addr2)) { 2218 /* 2219 * This is fine since we prevent two stations with the same 2220 * address from being added. 2221 */ 2222 sta = ieee80211_find_sta_by_ifaddr(mvm->hw, hdr->addr2, NULL); 2223 } 2224 2225 if (iwl_mvm_rx_crypto(mvm, sta, hdr, rx_status, phy_data.phy_info, desc, 2226 le32_to_cpu(pkt->len_n_flags), queue, 2227 &crypt_len)) { 2228 kfree_skb(skb); 2229 goto out; 2230 } 2231 2232 iwl_mvm_rx_fill_status(mvm, skb, &phy_data, queue); 2233 2234 if (sta) { 2235 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2236 struct ieee80211_vif *tx_blocked_vif = 2237 rcu_dereference(mvm->csa_tx_blocked_vif); 2238 u8 baid = (u8)((le32_to_cpu(desc->reorder_data) & 2239 IWL_RX_MPDU_REORDER_BAID_MASK) >> 2240 IWL_RX_MPDU_REORDER_BAID_SHIFT); 2241 struct iwl_fw_dbg_trigger_tlv *trig; 2242 struct ieee80211_vif *vif = mvmsta->vif; 2243 2244 if (!mvm->tcm.paused && len >= sizeof(*hdr) && 2245 !is_multicast_ether_addr(hdr->addr1) && 2246 ieee80211_is_data(hdr->frame_control) && 2247 time_after(jiffies, mvm->tcm.ts + MVM_TCM_PERIOD)) 2248 schedule_delayed_work(&mvm->tcm.work, 0); 2249 2250 /* 2251 * We have tx blocked stations (with CS bit). If we heard 2252 * frames from a blocked station on a new channel we can 2253 * TX to it again. 2254 */ 2255 if (unlikely(tx_blocked_vif) && tx_blocked_vif == vif) { 2256 struct iwl_mvm_vif *mvmvif = 2257 iwl_mvm_vif_from_mac80211(tx_blocked_vif); 2258 struct iwl_rx_sta_csa rx_sta_csa = { 2259 .all_sta_unblocked = true, 2260 .vif = tx_blocked_vif, 2261 }; 2262 2263 if (mvmvif->csa_target_freq == rx_status->freq) 2264 iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, 2265 false); 2266 ieee80211_iterate_stations_atomic(mvm->hw, 2267 iwl_mvm_rx_get_sta_block_tx, 2268 &rx_sta_csa); 2269 2270 if (rx_sta_csa.all_sta_unblocked) { 2271 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2272 /* Unblock BCAST / MCAST station */ 2273 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 2274 cancel_delayed_work(&mvm->cs_tx_unblock_dwork); 2275 } 2276 } 2277 2278 rs_update_last_rssi(mvm, mvmsta, rx_status); 2279 2280 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, 2281 ieee80211_vif_to_wdev(vif), 2282 FW_DBG_TRIGGER_RSSI); 2283 2284 if (trig && ieee80211_is_beacon(hdr->frame_control)) { 2285 struct iwl_fw_dbg_trigger_low_rssi *rssi_trig; 2286 s32 rssi; 2287 2288 rssi_trig = (void *)trig->data; 2289 rssi = le32_to_cpu(rssi_trig->rssi); 2290 2291 if (rx_status->signal < rssi) 2292 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 2293 NULL); 2294 } 2295 2296 if (ieee80211_is_data(hdr->frame_control)) 2297 iwl_mvm_rx_csum(mvm, sta, skb, pkt); 2298 2299 if (iwl_mvm_is_dup(sta, queue, rx_status, hdr, desc)) { 2300 IWL_DEBUG_DROP(mvm, "Dropping duplicate packet 0x%x\n", 2301 le16_to_cpu(hdr->seq_ctrl)); 2302 kfree_skb(skb); 2303 goto out; 2304 } 2305 2306 /* 2307 * Our hardware de-aggregates AMSDUs but copies the mac header 2308 * as it to the de-aggregated MPDUs. We need to turn off the 2309 * AMSDU bit in the QoS control ourselves. 2310 * In addition, HW reverses addr3 and addr4 - reverse it back. 2311 */ 2312 if ((desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU) && 2313 !WARN_ON(!ieee80211_is_data_qos(hdr->frame_control))) { 2314 u8 *qc = ieee80211_get_qos_ctl(hdr); 2315 2316 *qc &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT; 2317 2318 if (mvm->trans->trans_cfg->device_family == 2319 IWL_DEVICE_FAMILY_9000) { 2320 iwl_mvm_flip_address(hdr->addr3); 2321 2322 if (ieee80211_has_a4(hdr->frame_control)) 2323 iwl_mvm_flip_address(hdr->addr4); 2324 } 2325 } 2326 if (baid != IWL_RX_REORDER_DATA_INVALID_BAID) { 2327 u32 reorder_data = le32_to_cpu(desc->reorder_data); 2328 2329 iwl_mvm_agg_rx_received(mvm, reorder_data, baid); 2330 } 2331 } 2332 2333 /* management stuff on default queue */ 2334 if (!queue) { 2335 if (unlikely((ieee80211_is_beacon(hdr->frame_control) || 2336 ieee80211_is_probe_resp(hdr->frame_control)) && 2337 mvm->sched_scan_pass_all == 2338 SCHED_SCAN_PASS_ALL_ENABLED)) 2339 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_FOUND; 2340 2341 if (unlikely(ieee80211_is_beacon(hdr->frame_control) || 2342 ieee80211_is_probe_resp(hdr->frame_control))) 2343 rx_status->boottime_ns = ktime_get_boottime_ns(); 2344 } 2345 2346 if (iwl_mvm_create_skb(mvm, skb, hdr, len, crypt_len, rxb)) { 2347 kfree_skb(skb); 2348 goto out; 2349 } 2350 2351 if (!iwl_mvm_reorder(mvm, napi, queue, sta, skb, desc) && 2352 likely(!iwl_mvm_time_sync_frame(mvm, skb, hdr->addr2)) && 2353 likely(!iwl_mvm_mei_filter_scan(mvm, skb))) { 2354 if (mvm->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 && 2355 (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU) && 2356 !(desc->amsdu_info & IWL_RX_MPDU_AMSDU_LAST_SUBFRAME)) 2357 rx_status->flag |= RX_FLAG_AMSDU_MORE; 2358 2359 iwl_mvm_pass_packet_to_mac80211(mvm, napi, skb, queue, sta, 2360 link_sta); 2361 } 2362 out: 2363 rcu_read_unlock(); 2364 } 2365 2366 void iwl_mvm_rx_monitor_no_data(struct iwl_mvm *mvm, struct napi_struct *napi, 2367 struct iwl_rx_cmd_buffer *rxb, int queue) 2368 { 2369 struct ieee80211_rx_status *rx_status; 2370 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2371 struct iwl_rx_no_data_ver_3 *desc = (void *)pkt->data; 2372 u32 rssi; 2373 u32 info_type; 2374 struct ieee80211_sta *sta = NULL; 2375 struct sk_buff *skb; 2376 struct iwl_mvm_rx_phy_data phy_data; 2377 u32 format; 2378 2379 if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))) 2380 return; 2381 2382 if (unlikely(iwl_rx_packet_payload_len(pkt) < sizeof(struct iwl_rx_no_data))) 2383 return; 2384 2385 rssi = le32_to_cpu(desc->rssi); 2386 info_type = le32_to_cpu(desc->info) & RX_NO_DATA_INFO_TYPE_MSK; 2387 phy_data.d0 = desc->phy_info[0]; 2388 phy_data.d1 = desc->phy_info[1]; 2389 phy_data.phy_info = IWL_RX_MPDU_PHY_TSF_OVERLOAD; 2390 phy_data.gp2_on_air_rise = le32_to_cpu(desc->on_air_rise_time); 2391 phy_data.rate_n_flags = le32_to_cpu(desc->rate); 2392 phy_data.energy_a = u32_get_bits(rssi, RX_NO_DATA_CHAIN_A_MSK); 2393 phy_data.energy_b = u32_get_bits(rssi, RX_NO_DATA_CHAIN_B_MSK); 2394 phy_data.channel = u32_get_bits(rssi, RX_NO_DATA_CHANNEL_MSK); 2395 phy_data.with_data = false; 2396 phy_data.rx_vec[0] = desc->rx_vec[0]; 2397 phy_data.rx_vec[1] = desc->rx_vec[1]; 2398 2399 if (iwl_fw_lookup_notif_ver(mvm->fw, DATA_PATH_GROUP, 2400 RX_NO_DATA_NOTIF, 0) < 2) { 2401 IWL_DEBUG_DROP(mvm, "Got an old rate format. Old rate: 0x%x\n", 2402 phy_data.rate_n_flags); 2403 phy_data.rate_n_flags = iwl_new_rate_from_v1(phy_data.rate_n_flags); 2404 IWL_DEBUG_DROP(mvm, " Rate after conversion to the new format: 0x%x\n", 2405 phy_data.rate_n_flags); 2406 } 2407 2408 format = phy_data.rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 2409 2410 if (iwl_fw_lookup_notif_ver(mvm->fw, DATA_PATH_GROUP, 2411 RX_NO_DATA_NOTIF, 0) >= 3) { 2412 if (unlikely(iwl_rx_packet_payload_len(pkt) < 2413 sizeof(struct iwl_rx_no_data_ver_3))) 2414 /* invalid len for ver 3 */ 2415 return; 2416 phy_data.rx_vec[2] = desc->rx_vec[2]; 2417 phy_data.rx_vec[3] = desc->rx_vec[3]; 2418 } else { 2419 if (format == RATE_MCS_EHT_MSK) 2420 /* no support for EHT before version 3 API */ 2421 return; 2422 } 2423 2424 /* Dont use dev_alloc_skb(), we'll have enough headroom once 2425 * ieee80211_hdr pulled. 2426 */ 2427 skb = alloc_skb(128, GFP_ATOMIC); 2428 if (!skb) { 2429 IWL_ERR(mvm, "alloc_skb failed\n"); 2430 return; 2431 } 2432 2433 rx_status = IEEE80211_SKB_RXCB(skb); 2434 2435 /* 0-length PSDU */ 2436 rx_status->flag |= RX_FLAG_NO_PSDU; 2437 2438 switch (info_type) { 2439 case RX_NO_DATA_INFO_TYPE_NDP: 2440 rx_status->zero_length_psdu_type = 2441 IEEE80211_RADIOTAP_ZERO_LEN_PSDU_SOUNDING; 2442 break; 2443 case RX_NO_DATA_INFO_TYPE_MU_UNMATCHED: 2444 case RX_NO_DATA_INFO_TYPE_TB_UNMATCHED: 2445 rx_status->zero_length_psdu_type = 2446 IEEE80211_RADIOTAP_ZERO_LEN_PSDU_NOT_CAPTURED; 2447 break; 2448 default: 2449 rx_status->zero_length_psdu_type = 2450 IEEE80211_RADIOTAP_ZERO_LEN_PSDU_VENDOR; 2451 break; 2452 } 2453 2454 rx_status->band = phy_data.channel > 14 ? NL80211_BAND_5GHZ : 2455 NL80211_BAND_2GHZ; 2456 2457 iwl_mvm_rx_fill_status(mvm, skb, &phy_data, queue); 2458 2459 /* no more radio tap info should be put after this point. 2460 * 2461 * We mark it as mac header, for upper layers to know where 2462 * all radio tap header ends. 2463 */ 2464 skb_reset_mac_header(skb); 2465 2466 /* 2467 * Override the nss from the rx_vec since the rate_n_flags has 2468 * only 2 bits for the nss which gives a max of 4 ss but there 2469 * may be up to 8 spatial streams. 2470 */ 2471 switch (format) { 2472 case RATE_MCS_VHT_MSK: 2473 rx_status->nss = 2474 le32_get_bits(desc->rx_vec[0], 2475 RX_NO_DATA_RX_VEC0_VHT_NSTS_MSK) + 1; 2476 break; 2477 case RATE_MCS_HE_MSK: 2478 rx_status->nss = 2479 le32_get_bits(desc->rx_vec[0], 2480 RX_NO_DATA_RX_VEC0_HE_NSTS_MSK) + 1; 2481 break; 2482 case RATE_MCS_EHT_MSK: 2483 rx_status->nss = 2484 le32_get_bits(desc->rx_vec[2], 2485 RX_NO_DATA_RX_VEC2_EHT_NSTS_MSK) + 1; 2486 } 2487 2488 rcu_read_lock(); 2489 ieee80211_rx_napi(mvm->hw, sta, skb, napi); 2490 rcu_read_unlock(); 2491 } 2492 2493 void iwl_mvm_rx_frame_release(struct iwl_mvm *mvm, struct napi_struct *napi, 2494 struct iwl_rx_cmd_buffer *rxb, int queue) 2495 { 2496 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2497 struct iwl_frame_release *release = (void *)pkt->data; 2498 2499 if (unlikely(iwl_rx_packet_payload_len(pkt) < sizeof(*release))) 2500 return; 2501 2502 iwl_mvm_release_frames_from_notif(mvm, napi, release->baid, 2503 le16_to_cpu(release->nssn), 2504 queue); 2505 } 2506 2507 void iwl_mvm_rx_bar_frame_release(struct iwl_mvm *mvm, struct napi_struct *napi, 2508 struct iwl_rx_cmd_buffer *rxb, int queue) 2509 { 2510 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2511 struct iwl_bar_frame_release *release = (void *)pkt->data; 2512 unsigned int baid = le32_get_bits(release->ba_info, 2513 IWL_BAR_FRAME_RELEASE_BAID_MASK); 2514 unsigned int nssn = le32_get_bits(release->ba_info, 2515 IWL_BAR_FRAME_RELEASE_NSSN_MASK); 2516 unsigned int sta_id = le32_get_bits(release->sta_tid, 2517 IWL_BAR_FRAME_RELEASE_STA_MASK); 2518 unsigned int tid = le32_get_bits(release->sta_tid, 2519 IWL_BAR_FRAME_RELEASE_TID_MASK); 2520 struct iwl_mvm_baid_data *baid_data; 2521 2522 if (unlikely(iwl_rx_packet_payload_len(pkt) < sizeof(*release))) 2523 return; 2524 2525 if (WARN_ON_ONCE(baid == IWL_RX_REORDER_DATA_INVALID_BAID || 2526 baid >= ARRAY_SIZE(mvm->baid_map))) 2527 return; 2528 2529 rcu_read_lock(); 2530 baid_data = rcu_dereference(mvm->baid_map[baid]); 2531 if (!baid_data) { 2532 IWL_DEBUG_RX(mvm, 2533 "Got valid BAID %d but not allocated, invalid BAR release!\n", 2534 baid); 2535 goto out; 2536 } 2537 2538 if (WARN(tid != baid_data->tid || sta_id > IWL_MVM_STATION_COUNT_MAX || 2539 !(baid_data->sta_mask & BIT(sta_id)), 2540 "baid 0x%x is mapped to sta_mask:0x%x tid:%d, but BAR release received for sta:%d tid:%d\n", 2541 baid, baid_data->sta_mask, baid_data->tid, sta_id, 2542 tid)) 2543 goto out; 2544 2545 IWL_DEBUG_DROP(mvm, "Received a BAR, expect packet loss: nssn %d\n", 2546 nssn); 2547 2548 iwl_mvm_release_frames_from_notif(mvm, napi, baid, nssn, queue); 2549 out: 2550 rcu_read_unlock(); 2551 } 2552