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1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause2/*3 * Copyright (C) 2012-2014, 2018-2024 Intel Corporation4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH5 * Copyright (C) 2015-2017 Intel Deutschland GmbH6 */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 14static 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 replicate39 * all the logic that's necessary for checking the PN on fragmented40 * frames, leave that to mac8021141 */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 else64 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 */91static 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 have109 * removed (it might be disabled, e.g. for mgmt frames). As a monitor110 * interface cannot exist with other interfaces, this removal is safe111 * 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, and118 * an additional 8 bytes for SNAP/ethertype, see below) so that119 * splice() or TCP coalesce are more efficient.120 *121 * Since, in addition, ieee80211_data_to_8023() always pull in at122 * least 8 bytes (possibly more for mesh) we can do the same here123 * to save the cost of doing it later. That still doesn't pull in124 * the actual IP header since the typical case has a SNAP header.125 * If the latter changes (there are efforts in the standards group126 * 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 if134 * 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 is142 * the only way we use, data + len is the next place that hdr would be put143 */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 for150 * certain cases and starts the checksum after the SNAP. Check if151 * this is the case - it's easier to just bail out to CHECKSUM_NONE152 * in the cases the hardware didn't handle, since it's rare to see153 * such packets, even though the hardware did calculate the checksum154 * in this case, just starting after the MAC header instead.155 *156 * Starting from Bz hardware, it calculates starting directly after157 * 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 pointer193 *194 * Also pad to 4 the len and zero out all data part195 */196static void *197iwl_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 207static 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 */236static 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{241 if (unlikely(iwl_mvm_check_pn(mvm, skb, queue, sta))) {242 kfree_skb(skb);243 return;244 }245 246 ieee80211_rx_napi(mvm->hw, sta, skb, napi);247}248 249static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm,250 struct ieee80211_rx_status *rx_status,251 u32 rate_n_flags, int energy_a,252 int energy_b)253{254 int max_energy;255 u32 rate_flags = rate_n_flags;256 257 energy_a = energy_a ? -energy_a : S8_MIN;258 energy_b = energy_b ? -energy_b : S8_MIN;259 max_energy = max(energy_a, energy_b);260 261 IWL_DEBUG_STATS(mvm, "energy In A %d B %d, and max %d\n",262 energy_a, energy_b, max_energy);263 264 rx_status->signal = max_energy;265 rx_status->chains =266 (rate_flags & RATE_MCS_ANT_AB_MSK) >> RATE_MCS_ANT_POS;267 rx_status->chain_signal[0] = energy_a;268 rx_status->chain_signal[1] = energy_b;269}270 271static int iwl_mvm_rx_mgmt_prot(struct ieee80211_sta *sta,272 struct ieee80211_hdr *hdr,273 struct iwl_rx_mpdu_desc *desc,274 u32 status,275 struct ieee80211_rx_status *stats)276{277 struct wireless_dev *wdev;278 struct iwl_mvm_sta *mvmsta;279 struct iwl_mvm_vif *mvmvif;280 u8 keyid;281 struct ieee80211_key_conf *key;282 u32 len = le16_to_cpu(desc->mpdu_len);283 const u8 *frame = (void *)hdr;284 285 if ((status & IWL_RX_MPDU_STATUS_SEC_MASK) == IWL_RX_MPDU_STATUS_SEC_NONE)286 return 0;287 288 /*289 * For non-beacon, we don't really care. But beacons may290 * be filtered out, and we thus need the firmware's replay291 * detection, otherwise beacons the firmware previously292 * filtered could be replayed, or something like that, and293 * it can filter a lot - though usually only if nothing has294 * changed.295 */296 if (!ieee80211_is_beacon(hdr->frame_control))297 return 0;298 299 if (!sta)300 return -1;301 302 mvmsta = iwl_mvm_sta_from_mac80211(sta);303 mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);304 305 /* key mismatch - will also report !MIC_OK but we shouldn't count it */306 if (!(status & IWL_RX_MPDU_STATUS_KEY_VALID))307 goto report;308 309 /* good cases */310 if (likely(status & IWL_RX_MPDU_STATUS_MIC_OK &&311 !(status & IWL_RX_MPDU_STATUS_REPLAY_ERROR))) {312 stats->flag |= RX_FLAG_DECRYPTED;313 return 0;314 }315 316 /*317 * both keys will have the same cipher and MIC length, use318 * whichever one is available319 */320 key = rcu_dereference(mvmvif->bcn_prot.keys[0]);321 if (!key) {322 key = rcu_dereference(mvmvif->bcn_prot.keys[1]);323 if (!key)324 goto report;325 }326 327 if (len < key->icv_len + IEEE80211_GMAC_PN_LEN + 2)328 goto report;329 330 /* get the real key ID */331 keyid = frame[len - key->icv_len - IEEE80211_GMAC_PN_LEN - 2];332 /* and if that's the other key, look it up */333 if (keyid != key->keyidx) {334 /*335 * shouldn't happen since firmware checked, but be safe336 * in case the MIC length is wrong too, for example337 */338 if (keyid != 6 && keyid != 7)339 return -1;340 key = rcu_dereference(mvmvif->bcn_prot.keys[keyid - 6]);341 if (!key)342 goto report;343 }344 345 /* Report status to mac80211 */346 if (!(status & IWL_RX_MPDU_STATUS_MIC_OK))347 ieee80211_key_mic_failure(key);348 else if (status & IWL_RX_MPDU_STATUS_REPLAY_ERROR)349 ieee80211_key_replay(key);350report:351 wdev = ieee80211_vif_to_wdev(mvmsta->vif);352 if (wdev->netdev)353 cfg80211_rx_unprot_mlme_mgmt(wdev->netdev, (void *)hdr, len);354 355 return -1;356}357 358static int iwl_mvm_rx_crypto(struct iwl_mvm *mvm, struct ieee80211_sta *sta,359 struct ieee80211_hdr *hdr,360 struct ieee80211_rx_status *stats, u16 phy_info,361 struct iwl_rx_mpdu_desc *desc,362 u32 pkt_flags, int queue, u8 *crypt_len)363{364 u32 status = le32_to_cpu(desc->status);365 366 /*367 * Drop UNKNOWN frames in aggregation, unless in monitor mode368 * (where we don't have the keys).369 * We limit this to aggregation because in TKIP this is a valid370 * scenario, since we may not have the (correct) TTAK (phase 1371 * key) in the firmware.372 */373 if (phy_info & IWL_RX_MPDU_PHY_AMPDU &&374 (status & IWL_RX_MPDU_STATUS_SEC_MASK) ==375 IWL_RX_MPDU_STATUS_SEC_UNKNOWN && !mvm->monitor_on) {376 IWL_DEBUG_DROP(mvm, "Dropping packets, bad enc status\n");377 return -1;378 }379 380 if (unlikely(ieee80211_is_mgmt(hdr->frame_control) &&381 !ieee80211_has_protected(hdr->frame_control)))382 return iwl_mvm_rx_mgmt_prot(sta, hdr, desc, status, stats);383 384 if (!ieee80211_has_protected(hdr->frame_control) ||385 (status & IWL_RX_MPDU_STATUS_SEC_MASK) ==386 IWL_RX_MPDU_STATUS_SEC_NONE)387 return 0;388 389 /* TODO: handle packets encrypted with unknown alg */390 391 switch (status & IWL_RX_MPDU_STATUS_SEC_MASK) {392 case IWL_RX_MPDU_STATUS_SEC_CCM:393 case IWL_RX_MPDU_STATUS_SEC_GCM:394 BUILD_BUG_ON(IEEE80211_CCMP_PN_LEN != IEEE80211_GCMP_PN_LEN);395 /* alg is CCM: check MIC only */396 if (!(status & IWL_RX_MPDU_STATUS_MIC_OK)) {397 IWL_DEBUG_DROP(mvm,398 "Dropping packet, bad MIC (CCM/GCM)\n");399 return -1;400 }401 402 stats->flag |= RX_FLAG_DECRYPTED | RX_FLAG_MIC_STRIPPED;403 *crypt_len = IEEE80211_CCMP_HDR_LEN;404 return 0;405 case IWL_RX_MPDU_STATUS_SEC_TKIP:406 /* Don't drop the frame and decrypt it in SW */407 if (!fw_has_api(&mvm->fw->ucode_capa,408 IWL_UCODE_TLV_API_DEPRECATE_TTAK) &&409 !(status & IWL_RX_MPDU_RES_STATUS_TTAK_OK))410 return 0;411 412 if (mvm->trans->trans_cfg->gen2 &&413 !(status & RX_MPDU_RES_STATUS_MIC_OK))414 stats->flag |= RX_FLAG_MMIC_ERROR;415 416 *crypt_len = IEEE80211_TKIP_IV_LEN;417 fallthrough;418 case IWL_RX_MPDU_STATUS_SEC_WEP:419 if (!(status & IWL_RX_MPDU_STATUS_ICV_OK))420 return -1;421 422 stats->flag |= RX_FLAG_DECRYPTED;423 if ((status & IWL_RX_MPDU_STATUS_SEC_MASK) ==424 IWL_RX_MPDU_STATUS_SEC_WEP)425 *crypt_len = IEEE80211_WEP_IV_LEN;426 427 if (pkt_flags & FH_RSCSR_RADA_EN) {428 stats->flag |= RX_FLAG_ICV_STRIPPED;429 if (mvm->trans->trans_cfg->gen2)430 stats->flag |= RX_FLAG_MMIC_STRIPPED;431 }432 433 return 0;434 case IWL_RX_MPDU_STATUS_SEC_EXT_ENC:435 if (!(status & IWL_RX_MPDU_STATUS_MIC_OK))436 return -1;437 stats->flag |= RX_FLAG_DECRYPTED;438 return 0;439 case RX_MPDU_RES_STATUS_SEC_CMAC_GMAC_ENC:440 break;441 default:442 /*443 * Sometimes we can get frames that were not decrypted444 * because the firmware didn't have the keys yet. This can445 * happen after connection where we can get multicast frames446 * before the GTK is installed.447 * Silently drop those frames.448 * Also drop un-decrypted frames in monitor mode.449 */450 if (!is_multicast_ether_addr(hdr->addr1) &&451 !mvm->monitor_on && net_ratelimit())452 IWL_WARN(mvm, "Unhandled alg: 0x%x\n", status);453 }454 455 return 0;456}457 458static void iwl_mvm_rx_csum(struct iwl_mvm *mvm,459 struct ieee80211_sta *sta,460 struct sk_buff *skb,461 struct iwl_rx_packet *pkt)462{463 struct iwl_rx_mpdu_desc *desc = (void *)pkt->data;464 465 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) {466 if (pkt->len_n_flags & cpu_to_le32(FH_RSCSR_RPA_EN)) {467 u16 hwsum = be16_to_cpu(desc->v3.raw_xsum);468 469 skb->ip_summed = CHECKSUM_COMPLETE;470 skb->csum = csum_unfold(~(__force __sum16)hwsum);471 }472 } else {473 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);474 struct iwl_mvm_vif *mvmvif;475 u16 flags = le16_to_cpu(desc->l3l4_flags);476 u8 l3_prot = (u8)((flags & IWL_RX_L3L4_L3_PROTO_MASK) >>477 IWL_RX_L3_PROTO_POS);478 479 mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);480 481 if (mvmvif->features & NETIF_F_RXCSUM &&482 flags & IWL_RX_L3L4_TCP_UDP_CSUM_OK &&483 (flags & IWL_RX_L3L4_IP_HDR_CSUM_OK ||484 l3_prot == IWL_RX_L3_TYPE_IPV6 ||485 l3_prot == IWL_RX_L3_TYPE_IPV6_FRAG))486 skb->ip_summed = CHECKSUM_UNNECESSARY;487 }488}489 490/*491 * returns true if a packet is a duplicate or invalid tid and should be dropped.492 * Updates AMSDU PN tracking info493 */494static bool iwl_mvm_is_dup(struct ieee80211_sta *sta, int queue,495 struct ieee80211_rx_status *rx_status,496 struct ieee80211_hdr *hdr,497 struct iwl_rx_mpdu_desc *desc)498{499 struct iwl_mvm_sta *mvm_sta;500 struct iwl_mvm_rxq_dup_data *dup_data;501 u8 tid, sub_frame_idx;502 503 if (WARN_ON(IS_ERR_OR_NULL(sta)))504 return false;505 506 mvm_sta = iwl_mvm_sta_from_mac80211(sta);507 508 if (WARN_ON_ONCE(!mvm_sta->dup_data))509 return false;510 511 dup_data = &mvm_sta->dup_data[queue];512 513 /*514 * Drop duplicate 802.11 retransmissions515 * (IEEE 802.11-2012: 9.3.2.10 "Duplicate detection and recovery")516 */517 if (ieee80211_is_ctl(hdr->frame_control) ||518 ieee80211_is_any_nullfunc(hdr->frame_control) ||519 is_multicast_ether_addr(hdr->addr1))520 return false;521 522 if (ieee80211_is_data_qos(hdr->frame_control)) {523 /* frame has qos control */524 tid = ieee80211_get_tid(hdr);525 if (tid >= IWL_MAX_TID_COUNT)526 return true;527 } else {528 tid = IWL_MAX_TID_COUNT;529 }530 531 /* If this wasn't a part of an A-MSDU the sub-frame index will be 0 */532 sub_frame_idx = desc->amsdu_info &533 IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK;534 535 if (unlikely(ieee80211_has_retry(hdr->frame_control) &&536 dup_data->last_seq[tid] == hdr->seq_ctrl &&537 dup_data->last_sub_frame[tid] >= sub_frame_idx))538 return true;539 540 /* Allow same PN as the first subframe for following sub frames */541 if (dup_data->last_seq[tid] == hdr->seq_ctrl &&542 sub_frame_idx > dup_data->last_sub_frame[tid] &&543 desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU)544 rx_status->flag |= RX_FLAG_ALLOW_SAME_PN;545 546 dup_data->last_seq[tid] = hdr->seq_ctrl;547 dup_data->last_sub_frame[tid] = sub_frame_idx;548 549 rx_status->flag |= RX_FLAG_DUP_VALIDATED;550 551 return false;552}553 554static void iwl_mvm_release_frames(struct iwl_mvm *mvm,555 struct ieee80211_sta *sta,556 struct napi_struct *napi,557 struct iwl_mvm_baid_data *baid_data,558 struct iwl_mvm_reorder_buffer *reorder_buf,559 u16 nssn)560{561 struct iwl_mvm_reorder_buf_entry *entries =562 &baid_data->entries[reorder_buf->queue *563 baid_data->entries_per_queue];564 u16 ssn = reorder_buf->head_sn;565 566 lockdep_assert_held(&reorder_buf->lock);567 568 while (ieee80211_sn_less(ssn, nssn)) {569 int index = ssn % baid_data->buf_size;570 struct sk_buff_head *skb_list = &entries[index].frames;571 struct sk_buff *skb;572 573 ssn = ieee80211_sn_inc(ssn);574 575 /*576 * Empty the list. Will have more than one frame for A-MSDU.577 * Empty list is valid as well since nssn indicates frames were578 * received.579 */580 while ((skb = __skb_dequeue(skb_list))) {581 iwl_mvm_pass_packet_to_mac80211(mvm, napi, skb,582 reorder_buf->queue,583 sta);584 reorder_buf->num_stored--;585 }586 }587 reorder_buf->head_sn = nssn;588}589 590static void iwl_mvm_del_ba(struct iwl_mvm *mvm, int queue,591 struct iwl_mvm_delba_data *data)592{593 struct iwl_mvm_baid_data *ba_data;594 struct ieee80211_sta *sta;595 struct iwl_mvm_reorder_buffer *reorder_buf;596 u8 baid = data->baid;597 u32 sta_id;598 599 if (WARN_ONCE(baid >= IWL_MAX_BAID, "invalid BAID: %x\n", baid))600 return;601 602 rcu_read_lock();603 604 ba_data = rcu_dereference(mvm->baid_map[baid]);605 if (WARN_ON_ONCE(!ba_data))606 goto out;607 608 /* pick any STA ID to find the pointer */609 sta_id = ffs(ba_data->sta_mask) - 1;610 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);611 if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta)))612 goto out;613 614 reorder_buf = &ba_data->reorder_buf[queue];615 616 /* release all frames that are in the reorder buffer to the stack */617 spin_lock_bh(&reorder_buf->lock);618 iwl_mvm_release_frames(mvm, sta, NULL, ba_data, reorder_buf,619 ieee80211_sn_add(reorder_buf->head_sn,620 ba_data->buf_size));621 spin_unlock_bh(&reorder_buf->lock);622 623out:624 rcu_read_unlock();625}626 627static void iwl_mvm_release_frames_from_notif(struct iwl_mvm *mvm,628 struct napi_struct *napi,629 u8 baid, u16 nssn, int queue)630{631 struct ieee80211_sta *sta;632 struct iwl_mvm_reorder_buffer *reorder_buf;633 struct iwl_mvm_baid_data *ba_data;634 u32 sta_id;635 636 IWL_DEBUG_HT(mvm, "Frame release notification for BAID %u, NSSN %d\n",637 baid, nssn);638 639 if (WARN_ON_ONCE(baid == IWL_RX_REORDER_DATA_INVALID_BAID ||640 baid >= ARRAY_SIZE(mvm->baid_map)))641 return;642 643 rcu_read_lock();644 645 ba_data = rcu_dereference(mvm->baid_map[baid]);646 if (WARN(!ba_data, "BAID %d not found in map\n", baid))647 goto out;648 649 /* pick any STA ID to find the pointer */650 sta_id = ffs(ba_data->sta_mask) - 1;651 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);652 if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta)))653 goto out;654 655 reorder_buf = &ba_data->reorder_buf[queue];656 657 spin_lock_bh(&reorder_buf->lock);658 iwl_mvm_release_frames(mvm, sta, napi, ba_data,659 reorder_buf, nssn);660 spin_unlock_bh(&reorder_buf->lock);661 662out:663 rcu_read_unlock();664}665 666void iwl_mvm_rx_queue_notif(struct iwl_mvm *mvm, struct napi_struct *napi,667 struct iwl_rx_cmd_buffer *rxb, int queue)668{669 struct iwl_rx_packet *pkt = rxb_addr(rxb);670 struct iwl_rxq_sync_notification *notif;671 struct iwl_mvm_internal_rxq_notif *internal_notif;672 u32 len = iwl_rx_packet_payload_len(pkt);673 674 notif = (void *)pkt->data;675 internal_notif = (void *)notif->payload;676 677 if (WARN_ONCE(len < sizeof(*notif) + sizeof(*internal_notif),678 "invalid notification size %d (%d)",679 len, (int)(sizeof(*notif) + sizeof(*internal_notif))))680 return;681 len -= sizeof(*notif) + sizeof(*internal_notif);682 683 if (WARN_ONCE(internal_notif->sync &&684 mvm->queue_sync_cookie != internal_notif->cookie,685 "Received expired RX queue sync message (cookie %d but wanted %d, queue %d)\n",686 internal_notif->cookie, mvm->queue_sync_cookie, queue))687 return;688 689 switch (internal_notif->type) {690 case IWL_MVM_RXQ_EMPTY:691 WARN_ONCE(len, "invalid empty notification size %d", len);692 break;693 case IWL_MVM_RXQ_NOTIF_DEL_BA:694 if (WARN_ONCE(len != sizeof(struct iwl_mvm_delba_data),695 "invalid delba notification size %d (%d)",696 len, (int)sizeof(struct iwl_mvm_delba_data)))697 break;698 iwl_mvm_del_ba(mvm, queue, (void *)internal_notif->data);699 break;700 default:701 WARN_ONCE(1, "Invalid identifier %d", internal_notif->type);702 }703 704 if (internal_notif->sync) {705 WARN_ONCE(!test_and_clear_bit(queue, &mvm->queue_sync_state),706 "queue sync: queue %d responded a second time!\n",707 queue);708 if (READ_ONCE(mvm->queue_sync_state) == 0)709 wake_up(&mvm->rx_sync_waitq);710 }711}712 713/*714 * Returns true if the MPDU was buffered\dropped, false if it should be passed715 * to upper layer.716 */717static bool iwl_mvm_reorder(struct iwl_mvm *mvm,718 struct napi_struct *napi,719 int queue,720 struct ieee80211_sta *sta,721 struct sk_buff *skb,722 struct iwl_rx_mpdu_desc *desc)723{724 struct ieee80211_hdr *hdr = (void *)skb_mac_header(skb);725 struct iwl_mvm_baid_data *baid_data;726 struct iwl_mvm_reorder_buffer *buffer;727 u32 reorder = le32_to_cpu(desc->reorder_data);728 bool amsdu = desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU;729 bool last_subframe =730 desc->amsdu_info & IWL_RX_MPDU_AMSDU_LAST_SUBFRAME;731 u8 tid = ieee80211_get_tid(hdr);732 struct iwl_mvm_reorder_buf_entry *entries;733 u32 sta_mask;734 int index;735 u16 nssn, sn;736 u8 baid;737 738 baid = (reorder & IWL_RX_MPDU_REORDER_BAID_MASK) >>739 IWL_RX_MPDU_REORDER_BAID_SHIFT;740 741 if (mvm->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000)742 return false;743 744 /*745 * This also covers the case of receiving a Block Ack Request746 * outside a BA session; we'll pass it to mac80211 and that747 * then sends a delBA action frame.748 * This also covers pure monitor mode, in which case we won't749 * have any BA sessions.750 */751 if (baid == IWL_RX_REORDER_DATA_INVALID_BAID)752 return false;753 754 /* no sta yet */755 if (WARN_ONCE(IS_ERR_OR_NULL(sta),756 "Got valid BAID without a valid station assigned\n"))757 return false;758 759 /* not a data packet or a bar */760 if (!ieee80211_is_back_req(hdr->frame_control) &&761 (!ieee80211_is_data_qos(hdr->frame_control) ||762 is_multicast_ether_addr(hdr->addr1)))763 return false;764 765 if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))766 return false;767 768 baid_data = rcu_dereference(mvm->baid_map[baid]);769 if (!baid_data) {770 IWL_DEBUG_RX(mvm,771 "Got valid BAID but no baid allocated, bypass the re-ordering buffer. Baid %d reorder 0x%x\n",772 baid, reorder);773 return false;774 }775 776 rcu_read_lock();777 sta_mask = iwl_mvm_sta_fw_id_mask(mvm, sta, -1);778 rcu_read_unlock();779 780 if (IWL_FW_CHECK(mvm,781 tid != baid_data->tid ||782 !(sta_mask & baid_data->sta_mask),783 "baid 0x%x is mapped to sta_mask:0x%x tid:%d, but was received for sta_mask:0x%x tid:%d\n",784 baid, baid_data->sta_mask, baid_data->tid,785 sta_mask, tid))786 return false;787 788 nssn = reorder & IWL_RX_MPDU_REORDER_NSSN_MASK;789 sn = (reorder & IWL_RX_MPDU_REORDER_SN_MASK) >>790 IWL_RX_MPDU_REORDER_SN_SHIFT;791 792 buffer = &baid_data->reorder_buf[queue];793 entries = &baid_data->entries[queue * baid_data->entries_per_queue];794 795 spin_lock_bh(&buffer->lock);796 797 if (!buffer->valid) {798 if (reorder & IWL_RX_MPDU_REORDER_BA_OLD_SN) {799 spin_unlock_bh(&buffer->lock);800 return false;801 }802 buffer->valid = true;803 }804 805 /* drop any duplicated packets */806 if (desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_DUPLICATE))807 goto drop;808 809 /* drop any oudated packets */810 if (reorder & IWL_RX_MPDU_REORDER_BA_OLD_SN)811 goto drop;812 813 /* release immediately if allowed by nssn and no stored frames */814 if (!buffer->num_stored && ieee80211_sn_less(sn, nssn)) {815 if (!amsdu || last_subframe)816 buffer->head_sn = nssn;817 /* No need to update AMSDU last SN - we are moving the head */818 spin_unlock_bh(&buffer->lock);819 return false;820 }821 822 /*823 * release immediately if there are no stored frames, and the sn is824 * equal to the head.825 * This can happen due to reorder timer, where NSSN is behind head_sn.826 * When we released everything, and we got the next frame in the827 * sequence, according to the NSSN we can't release immediately,828 * while technically there is no hole and we can move forward.829 */830 if (!buffer->num_stored && sn == buffer->head_sn) {831 if (!amsdu || last_subframe)832 buffer->head_sn = ieee80211_sn_inc(buffer->head_sn);833 834 /* No need to update AMSDU last SN - we are moving the head */835 spin_unlock_bh(&buffer->lock);836 return false;837 }838 839 /* put in reorder buffer */840 index = sn % baid_data->buf_size;841 __skb_queue_tail(&entries[index].frames, skb);842 buffer->num_stored++;843 844 if (amsdu)845 buffer->last_amsdu = sn;846 847 /*848 * We cannot trust NSSN for AMSDU sub-frames that are not the last.849 * The reason is that NSSN advances on the first sub-frame, and may850 * cause the reorder buffer to advance before all the sub-frames arrive.851 * Example: reorder buffer contains SN 0 & 2, and we receive AMSDU with852 * SN 1. NSSN for first sub frame will be 3 with the result of driver853 * releasing SN 0,1, 2. When sub-frame 1 arrives - reorder buffer is854 * already ahead and it will be dropped.855 * If the last sub-frame is not on this queue - we will get frame856 * release notification with up to date NSSN.857 */858 if (!amsdu || last_subframe)859 iwl_mvm_release_frames(mvm, sta, napi, baid_data,860 buffer, nssn);861 862 spin_unlock_bh(&buffer->lock);863 return true;864 865drop:866 kfree_skb(skb);867 spin_unlock_bh(&buffer->lock);868 return true;869}870 871static void iwl_mvm_agg_rx_received(struct iwl_mvm *mvm,872 u32 reorder_data, u8 baid)873{874 unsigned long now = jiffies;875 unsigned long timeout;876 struct iwl_mvm_baid_data *data;877 878 rcu_read_lock();879 880 data = rcu_dereference(mvm->baid_map[baid]);881 if (!data) {882 IWL_DEBUG_RX(mvm,883 "Got valid BAID but no baid allocated, bypass the re-ordering buffer. Baid %d reorder 0x%x\n",884 baid, reorder_data);885 goto out;886 }887 888 if (!data->timeout)889 goto out;890 891 timeout = data->timeout;892 /*893 * Do not update last rx all the time to avoid cache bouncing894 * between the rx queues.895 * Update it every timeout. Worst case is the session will896 * expire after ~ 2 * timeout, which doesn't matter that much.897 */898 if (time_before(data->last_rx + TU_TO_JIFFIES(timeout), now))899 /* Update is atomic */900 data->last_rx = now;901 902out:903 rcu_read_unlock();904}905 906static void iwl_mvm_flip_address(u8 *addr)907{908 int i;909 u8 mac_addr[ETH_ALEN];910 911 for (i = 0; i < ETH_ALEN; i++)912 mac_addr[i] = addr[ETH_ALEN - i - 1];913 ether_addr_copy(addr, mac_addr);914}915 916struct iwl_mvm_rx_phy_data {917 enum iwl_rx_phy_info_type info_type;918 __le32 d0, d1, d2, d3, eht_d4, d5;919 __le16 d4;920 bool with_data;921 bool first_subframe;922 __le32 rx_vec[4];923 924 u32 rate_n_flags;925 u32 gp2_on_air_rise;926 u16 phy_info;927 u8 energy_a, energy_b;928 u8 channel;929};930 931static void iwl_mvm_decode_he_mu_ext(struct iwl_mvm *mvm,932 struct iwl_mvm_rx_phy_data *phy_data,933 struct ieee80211_radiotap_he_mu *he_mu)934{935 u32 phy_data2 = le32_to_cpu(phy_data->d2);936 u32 phy_data3 = le32_to_cpu(phy_data->d3);937 u16 phy_data4 = le16_to_cpu(phy_data->d4);938 u32 rate_n_flags = phy_data->rate_n_flags;939 940 if (FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH1_CRC_OK, phy_data4)) {941 he_mu->flags1 |=942 cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_RU_KNOWN |943 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_CTR_26T_RU_KNOWN);944 945 he_mu->flags1 |=946 le16_encode_bits(FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH1_CTR_RU,947 phy_data4),948 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_CTR_26T_RU);949 950 he_mu->ru_ch1[0] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH1_RU0,951 phy_data2);952 he_mu->ru_ch1[1] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH1_RU1,953 phy_data3);954 he_mu->ru_ch1[2] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH1_RU2,955 phy_data2);956 he_mu->ru_ch1[3] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH1_RU3,957 phy_data3);958 }959 960 if (FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH2_CRC_OK, phy_data4) &&961 (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK_V1) != RATE_MCS_CHAN_WIDTH_20) {962 he_mu->flags1 |=963 cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH2_RU_KNOWN |964 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH2_CTR_26T_RU_KNOWN);965 966 he_mu->flags2 |=967 le16_encode_bits(FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH2_CTR_RU,968 phy_data4),969 IEEE80211_RADIOTAP_HE_MU_FLAGS2_CH2_CTR_26T_RU);970 971 he_mu->ru_ch2[0] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH2_RU0,972 phy_data2);973 he_mu->ru_ch2[1] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH2_RU1,974 phy_data3);975 he_mu->ru_ch2[2] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH2_RU2,976 phy_data2);977 he_mu->ru_ch2[3] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH2_RU3,978 phy_data3);979 }980}981 982static void983iwl_mvm_decode_he_phy_ru_alloc(struct iwl_mvm_rx_phy_data *phy_data,984 struct ieee80211_radiotap_he *he,985 struct ieee80211_radiotap_he_mu *he_mu,986 struct ieee80211_rx_status *rx_status)987{988 /*989 * Unfortunately, we have to leave the mac80211 data990 * incorrect for the case that we receive an HE-MU991 * transmission and *don't* have the HE phy data (due992 * to the bits being used for TSF). This shouldn't993 * happen though as management frames where we need994 * the TSF/timers are not be transmitted in HE-MU.995 */996 u8 ru = le32_get_bits(phy_data->d1, IWL_RX_PHY_DATA1_HE_RU_ALLOC_MASK);997 u32 rate_n_flags = phy_data->rate_n_flags;998 u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK_V1;999 u8 offs = 0;1000 1001 rx_status->bw = RATE_INFO_BW_HE_RU;1002 1003 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN);1004 1005 switch (ru) {1006 case 0 ... 36:1007 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_26;1008 offs = ru;1009 break;1010 case 37 ... 52:1011 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_52;1012 offs = ru - 37;1013 break;1014 case 53 ... 60:1015 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106;1016 offs = ru - 53;1017 break;1018 case 61 ... 64:1019 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_242;1020 offs = ru - 61;1021 break;1022 case 65 ... 66:1023 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_484;1024 offs = ru - 65;1025 break;1026 case 67:1027 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_996;1028 break;1029 case 68:1030 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_2x996;1031 break;1032 }1033 he->data2 |= le16_encode_bits(offs,1034 IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET);1035 he->data2 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_KNOWN |1036 IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET_KNOWN);1037 if (phy_data->d1 & cpu_to_le32(IWL_RX_PHY_DATA1_HE_RU_ALLOC_SEC80))1038 he->data2 |=1039 cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_SEC);1040 1041#define CHECK_BW(bw) \1042 BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_ ## bw ## MHZ != \1043 RATE_MCS_CHAN_WIDTH_##bw >> RATE_MCS_CHAN_WIDTH_POS); \1044 BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA6_TB_PPDU_BW_ ## bw ## MHZ != \1045 RATE_MCS_CHAN_WIDTH_##bw >> RATE_MCS_CHAN_WIDTH_POS)1046 CHECK_BW(20);1047 CHECK_BW(40);1048 CHECK_BW(80);1049 CHECK_BW(160);1050 1051 if (he_mu)1052 he_mu->flags2 |=1053 le16_encode_bits(FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK_V1,1054 rate_n_flags),1055 IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW);1056 else if (he_type == RATE_MCS_HE_TYPE_TRIG_V1)1057 he->data6 |=1058 cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA6_TB_PPDU_BW_KNOWN) |1059 le16_encode_bits(FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK_V1,1060 rate_n_flags),1061 IEEE80211_RADIOTAP_HE_DATA6_TB_PPDU_BW);1062}1063 1064static void iwl_mvm_decode_he_phy_data(struct iwl_mvm *mvm,1065 struct iwl_mvm_rx_phy_data *phy_data,1066 struct ieee80211_radiotap_he *he,1067 struct ieee80211_radiotap_he_mu *he_mu,1068 struct ieee80211_rx_status *rx_status,1069 int queue)1070{1071 switch (phy_data->info_type) {1072 case IWL_RX_PHY_INFO_TYPE_NONE:1073 case IWL_RX_PHY_INFO_TYPE_CCK:1074 case IWL_RX_PHY_INFO_TYPE_OFDM_LGCY:1075 case IWL_RX_PHY_INFO_TYPE_HT:1076 case IWL_RX_PHY_INFO_TYPE_VHT_SU:1077 case IWL_RX_PHY_INFO_TYPE_VHT_MU:1078 case IWL_RX_PHY_INFO_TYPE_EHT_MU:1079 case IWL_RX_PHY_INFO_TYPE_EHT_TB:1080 case IWL_RX_PHY_INFO_TYPE_EHT_MU_EXT:1081 case IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT:1082 return;1083 case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:1084 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE_KNOWN |1085 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE2_KNOWN |1086 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE3_KNOWN |1087 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE4_KNOWN);1088 he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,1089 IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE1),1090 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE1);1091 he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,1092 IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE2),1093 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE2);1094 he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,1095 IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE3),1096 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE3);1097 he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,1098 IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE4),1099 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE4);1100 fallthrough;1101 case IWL_RX_PHY_INFO_TYPE_HE_SU:1102 case IWL_RX_PHY_INFO_TYPE_HE_MU:1103 case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:1104 case IWL_RX_PHY_INFO_TYPE_HE_TB:1105 /* HE common */1106 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_LDPC_XSYMSEG_KNOWN |1107 IEEE80211_RADIOTAP_HE_DATA1_DOPPLER_KNOWN |1108 IEEE80211_RADIOTAP_HE_DATA1_BSS_COLOR_KNOWN);1109 he->data2 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRE_FEC_PAD_KNOWN |1110 IEEE80211_RADIOTAP_HE_DATA2_PE_DISAMBIG_KNOWN |1111 IEEE80211_RADIOTAP_HE_DATA2_TXOP_KNOWN |1112 IEEE80211_RADIOTAP_HE_DATA2_NUM_LTF_SYMS_KNOWN);1113 he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,1114 IWL_RX_PHY_DATA0_HE_BSS_COLOR_MASK),1115 IEEE80211_RADIOTAP_HE_DATA3_BSS_COLOR);1116 if (phy_data->info_type != IWL_RX_PHY_INFO_TYPE_HE_TB &&1117 phy_data->info_type != IWL_RX_PHY_INFO_TYPE_HE_TB_EXT) {1118 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_UL_DL_KNOWN);1119 he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,1120 IWL_RX_PHY_DATA0_HE_UPLINK),1121 IEEE80211_RADIOTAP_HE_DATA3_UL_DL);1122 }1123 he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,1124 IWL_RX_PHY_DATA0_HE_LDPC_EXT_SYM),1125 IEEE80211_RADIOTAP_HE_DATA3_LDPC_XSYMSEG);1126 he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d0,1127 IWL_RX_PHY_DATA0_HE_PRE_FEC_PAD_MASK),1128 IEEE80211_RADIOTAP_HE_DATA5_PRE_FEC_PAD);1129 he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d0,1130 IWL_RX_PHY_DATA0_HE_PE_DISAMBIG),1131 IEEE80211_RADIOTAP_HE_DATA5_PE_DISAMBIG);1132 he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d1,1133 IWL_RX_PHY_DATA1_HE_LTF_NUM_MASK),1134 IEEE80211_RADIOTAP_HE_DATA5_NUM_LTF_SYMS);1135 he->data6 |= le16_encode_bits(le32_get_bits(phy_data->d0,1136 IWL_RX_PHY_DATA0_HE_TXOP_DUR_MASK),1137 IEEE80211_RADIOTAP_HE_DATA6_TXOP);1138 he->data6 |= le16_encode_bits(le32_get_bits(phy_data->d0,1139 IWL_RX_PHY_DATA0_HE_DOPPLER),1140 IEEE80211_RADIOTAP_HE_DATA6_DOPPLER);1141 break;1142 }1143 1144 switch (phy_data->info_type) {1145 case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:1146 case IWL_RX_PHY_INFO_TYPE_HE_MU:1147 case IWL_RX_PHY_INFO_TYPE_HE_SU:1148 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE_KNOWN);1149 he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d0,1150 IWL_RX_PHY_DATA0_HE_SPATIAL_REUSE_MASK),1151 IEEE80211_RADIOTAP_HE_DATA4_SU_MU_SPTL_REUSE);1152 break;1153 default:1154 /* nothing here */1155 break;1156 }1157 1158 switch (phy_data->info_type) {1159 case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:1160 he_mu->flags1 |=1161 le16_encode_bits(le16_get_bits(phy_data->d4,1162 IWL_RX_PHY_DATA4_HE_MU_EXT_SIGB_DCM),1163 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM);1164 he_mu->flags1 |=1165 le16_encode_bits(le16_get_bits(phy_data->d4,1166 IWL_RX_PHY_DATA4_HE_MU_EXT_SIGB_MCS_MASK),1167 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS);1168 he_mu->flags2 |=1169 le16_encode_bits(le16_get_bits(phy_data->d4,1170 IWL_RX_PHY_DATA4_HE_MU_EXT_PREAMBLE_PUNC_TYPE_MASK),1171 IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW);1172 iwl_mvm_decode_he_mu_ext(mvm, phy_data, he_mu);1173 fallthrough;1174 case IWL_RX_PHY_INFO_TYPE_HE_MU:1175 he_mu->flags2 |=1176 le16_encode_bits(le32_get_bits(phy_data->d1,1177 IWL_RX_PHY_DATA1_HE_MU_SIBG_SYM_OR_USER_NUM_MASK),1178 IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_SYMS_USERS);1179 he_mu->flags2 |=1180 le16_encode_bits(le32_get_bits(phy_data->d1,1181 IWL_RX_PHY_DATA1_HE_MU_SIGB_COMPRESSION),1182 IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_COMP);1183 fallthrough;1184 case IWL_RX_PHY_INFO_TYPE_HE_TB:1185 case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:1186 iwl_mvm_decode_he_phy_ru_alloc(phy_data, he, he_mu, rx_status);1187 break;1188 case IWL_RX_PHY_INFO_TYPE_HE_SU:1189 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BEAM_CHANGE_KNOWN);1190 he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,1191 IWL_RX_PHY_DATA0_HE_BEAM_CHNG),1192 IEEE80211_RADIOTAP_HE_DATA3_BEAM_CHANGE);1193 break;1194 default:1195 /* nothing */1196 break;1197 }1198}1199 1200#define LE32_DEC_ENC(value, dec_bits, enc_bits) \1201 le32_encode_bits(le32_get_bits(value, dec_bits), enc_bits)1202 1203#define IWL_MVM_ENC_USIG_VALUE_MASK(usig, in_value, dec_bits, enc_bits) do { \1204 typeof(enc_bits) _enc_bits = enc_bits; \1205 typeof(usig) _usig = usig; \1206 (_usig)->mask |= cpu_to_le32(_enc_bits); \1207 (_usig)->value |= LE32_DEC_ENC(in_value, dec_bits, _enc_bits); \1208} while (0)1209 1210#define __IWL_MVM_ENC_EHT_RU(rt_data, rt_ru, fw_data, fw_ru) \1211 eht->data[(rt_data)] |= \1212 (cpu_to_le32 \1213 (IEEE80211_RADIOTAP_EHT_DATA ## rt_data ## _RU_ALLOC_CC_ ## rt_ru ## _KNOWN) | \1214 LE32_DEC_ENC(data ## fw_data, \1215 IWL_RX_PHY_DATA ## fw_data ## _EHT_MU_EXT_RU_ALLOC_ ## fw_ru, \1216 IEEE80211_RADIOTAP_EHT_DATA ## rt_data ## _RU_ALLOC_CC_ ## rt_ru))1217 1218#define _IWL_MVM_ENC_EHT_RU(rt_data, rt_ru, fw_data, fw_ru) \1219 __IWL_MVM_ENC_EHT_RU(rt_data, rt_ru, fw_data, fw_ru)1220 1221#define IEEE80211_RADIOTAP_RU_DATA_1_1_1 11222#define IEEE80211_RADIOTAP_RU_DATA_2_1_1 21223#define IEEE80211_RADIOTAP_RU_DATA_1_1_2 21224#define IEEE80211_RADIOTAP_RU_DATA_2_1_2 21225#define IEEE80211_RADIOTAP_RU_DATA_1_2_1 31226#define IEEE80211_RADIOTAP_RU_DATA_2_2_1 31227#define IEEE80211_RADIOTAP_RU_DATA_1_2_2 31228#define IEEE80211_RADIOTAP_RU_DATA_2_2_2 41229 1230#define IWL_RX_RU_DATA_A1 21231#define IWL_RX_RU_DATA_A2 21232#define IWL_RX_RU_DATA_B1 21233#define IWL_RX_RU_DATA_B2 41234#define IWL_RX_RU_DATA_C1 31235#define IWL_RX_RU_DATA_C2 31236#define IWL_RX_RU_DATA_D1 41237#define IWL_RX_RU_DATA_D2 41238 1239#define IWL_MVM_ENC_EHT_RU(rt_ru, fw_ru) \1240 _IWL_MVM_ENC_EHT_RU(IEEE80211_RADIOTAP_RU_DATA_ ## rt_ru, \1241 rt_ru, \1242 IWL_RX_RU_DATA_ ## fw_ru, \1243 fw_ru)1244 1245static void iwl_mvm_decode_eht_ext_mu(struct iwl_mvm *mvm,1246 struct iwl_mvm_rx_phy_data *phy_data,1247 struct ieee80211_rx_status *rx_status,1248 struct ieee80211_radiotap_eht *eht,1249 struct ieee80211_radiotap_eht_usig *usig)1250{1251 if (phy_data->with_data) {1252 __le32 data1 = phy_data->d1;1253 __le32 data2 = phy_data->d2;1254 __le32 data3 = phy_data->d3;1255 __le32 data4 = phy_data->eht_d4;1256 __le32 data5 = phy_data->d5;1257 u32 phy_bw = phy_data->rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK;1258 1259 IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5,1260 IWL_RX_PHY_DATA5_EHT_TYPE_AND_COMP,1261 IEEE80211_RADIOTAP_EHT_USIG2_MU_B0_B1_PPDU_TYPE);1262 IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5,1263 IWL_RX_PHY_DATA5_EHT_MU_PUNC_CH_CODE,1264 IEEE80211_RADIOTAP_EHT_USIG2_MU_B3_B7_PUNCTURED_INFO);1265 IWL_MVM_ENC_USIG_VALUE_MASK(usig, data4,1266 IWL_RX_PHY_DATA4_EHT_MU_EXT_SIGB_MCS,1267 IEEE80211_RADIOTAP_EHT_USIG2_MU_B9_B10_SIG_MCS);1268 IWL_MVM_ENC_USIG_VALUE_MASK1269 (usig, data1, IWL_RX_PHY_DATA1_EHT_MU_NUM_SIG_SYM_USIGA2,1270 IEEE80211_RADIOTAP_EHT_USIG2_MU_B11_B15_EHT_SIG_SYMBOLS);1271 1272 eht->user_info[0] |=1273 cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_STA_ID_KNOWN) |1274 LE32_DEC_ENC(data5, IWL_RX_PHY_DATA5_EHT_MU_STA_ID_USR,1275 IEEE80211_RADIOTAP_EHT_USER_INFO_STA_ID);1276 1277 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_NR_NON_OFDMA_USERS_M);1278 eht->data[7] |= LE32_DEC_ENC1279 (data5, IWL_RX_PHY_DATA5_EHT_MU_NUM_USR_NON_OFDMA,1280 IEEE80211_RADIOTAP_EHT_DATA7_NUM_OF_NON_OFDMA_USERS);1281 1282 /*1283 * Hardware labels the content channels/RU allocation values1284 * as follows:1285 * Content Channel 1 Content Channel 21286 * 20 MHz: A11287 * 40 MHz: A1 B11288 * 80 MHz: A1 C1 B1 D11289 * 160 MHz: A1 C1 A2 C2 B1 D1 B2 D21290 * 320 MHz: A1 C1 A2 C2 A3 C3 A4 C4 B1 D1 B2 D2 B3 D3 B4 D41291 *1292 * However firmware can only give us A1-D2, so the higher1293 * frequencies are missing.1294 */1295 1296 switch (phy_bw) {1297 case RATE_MCS_CHAN_WIDTH_320:1298 /* additional values are missing in RX metadata */1299 case RATE_MCS_CHAN_WIDTH_160:1300 /* content channel 1 */1301 IWL_MVM_ENC_EHT_RU(1_2_1, A2);1302 IWL_MVM_ENC_EHT_RU(1_2_2, C2);1303 /* content channel 2 */1304 IWL_MVM_ENC_EHT_RU(2_2_1, B2);1305 IWL_MVM_ENC_EHT_RU(2_2_2, D2);1306 fallthrough;1307 case RATE_MCS_CHAN_WIDTH_80:1308 /* content channel 1 */1309 IWL_MVM_ENC_EHT_RU(1_1_2, C1);1310 /* content channel 2 */1311 IWL_MVM_ENC_EHT_RU(2_1_2, D1);1312 fallthrough;1313 case RATE_MCS_CHAN_WIDTH_40:1314 /* content channel 2 */1315 IWL_MVM_ENC_EHT_RU(2_1_1, B1);1316 fallthrough;1317 case RATE_MCS_CHAN_WIDTH_20:1318 IWL_MVM_ENC_EHT_RU(1_1_1, A1);1319 break;1320 }1321 } else {1322 __le32 usig_a1 = phy_data->rx_vec[0];1323 __le32 usig_a2 = phy_data->rx_vec[1];1324 1325 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a1,1326 IWL_RX_USIG_A1_DISREGARD,1327 IEEE80211_RADIOTAP_EHT_USIG1_MU_B20_B24_DISREGARD);1328 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a1,1329 IWL_RX_USIG_A1_VALIDATE,1330 IEEE80211_RADIOTAP_EHT_USIG1_MU_B25_VALIDATE);1331 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,1332 IWL_RX_USIG_A2_EHT_PPDU_TYPE,1333 IEEE80211_RADIOTAP_EHT_USIG2_MU_B0_B1_PPDU_TYPE);1334 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,1335 IWL_RX_USIG_A2_EHT_USIG2_VALIDATE_B2,1336 IEEE80211_RADIOTAP_EHT_USIG2_MU_B2_VALIDATE);1337 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,1338 IWL_RX_USIG_A2_EHT_PUNC_CHANNEL,1339 IEEE80211_RADIOTAP_EHT_USIG2_MU_B3_B7_PUNCTURED_INFO);1340 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,1341 IWL_RX_USIG_A2_EHT_USIG2_VALIDATE_B8,1342 IEEE80211_RADIOTAP_EHT_USIG2_MU_B8_VALIDATE);1343 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,1344 IWL_RX_USIG_A2_EHT_SIG_MCS,1345 IEEE80211_RADIOTAP_EHT_USIG2_MU_B9_B10_SIG_MCS);1346 IWL_MVM_ENC_USIG_VALUE_MASK1347 (usig, usig_a2, IWL_RX_USIG_A2_EHT_SIG_SYM_NUM,1348 IEEE80211_RADIOTAP_EHT_USIG2_MU_B11_B15_EHT_SIG_SYMBOLS);1349 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,1350 IWL_RX_USIG_A2_EHT_CRC_OK,1351 IEEE80211_RADIOTAP_EHT_USIG2_MU_B16_B19_CRC);1352 }1353}1354 1355static void iwl_mvm_decode_eht_ext_tb(struct iwl_mvm *mvm,1356 struct iwl_mvm_rx_phy_data *phy_data,1357 struct ieee80211_rx_status *rx_status,1358 struct ieee80211_radiotap_eht *eht,1359 struct ieee80211_radiotap_eht_usig *usig)1360{1361 if (phy_data->with_data) {1362 __le32 data5 = phy_data->d5;1363 1364 IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5,1365 IWL_RX_PHY_DATA5_EHT_TYPE_AND_COMP,1366 IEEE80211_RADIOTAP_EHT_USIG2_TB_B0_B1_PPDU_TYPE);1367 IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5,1368 IWL_RX_PHY_DATA5_EHT_TB_SPATIAL_REUSE1,1369 IEEE80211_RADIOTAP_EHT_USIG2_TB_B3_B6_SPATIAL_REUSE_1);1370 1371 IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5,1372 IWL_RX_PHY_DATA5_EHT_TB_SPATIAL_REUSE2,1373 IEEE80211_RADIOTAP_EHT_USIG2_TB_B7_B10_SPATIAL_REUSE_2);1374 } else {1375 __le32 usig_a1 = phy_data->rx_vec[0];1376 __le32 usig_a2 = phy_data->rx_vec[1];1377 1378 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a1,1379 IWL_RX_USIG_A1_DISREGARD,1380 IEEE80211_RADIOTAP_EHT_USIG1_TB_B20_B25_DISREGARD);1381 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,1382 IWL_RX_USIG_A2_EHT_PPDU_TYPE,1383 IEEE80211_RADIOTAP_EHT_USIG2_TB_B0_B1_PPDU_TYPE);1384 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,1385 IWL_RX_USIG_A2_EHT_USIG2_VALIDATE_B2,1386 IEEE80211_RADIOTAP_EHT_USIG2_TB_B2_VALIDATE);1387 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,1388 IWL_RX_USIG_A2_EHT_TRIG_SPATIAL_REUSE_1,1389 IEEE80211_RADIOTAP_EHT_USIG2_TB_B3_B6_SPATIAL_REUSE_1);1390 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,1391 IWL_RX_USIG_A2_EHT_TRIG_SPATIAL_REUSE_2,1392 IEEE80211_RADIOTAP_EHT_USIG2_TB_B7_B10_SPATIAL_REUSE_2);1393 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,1394 IWL_RX_USIG_A2_EHT_TRIG_USIG2_DISREGARD,1395 IEEE80211_RADIOTAP_EHT_USIG2_TB_B11_B15_DISREGARD);1396 IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,1397 IWL_RX_USIG_A2_EHT_CRC_OK,1398 IEEE80211_RADIOTAP_EHT_USIG2_TB_B16_B19_CRC);1399 }1400}1401 1402static void iwl_mvm_decode_eht_ru(struct iwl_mvm *mvm,1403 struct ieee80211_rx_status *rx_status,1404 struct ieee80211_radiotap_eht *eht)1405{1406 u32 ru = le32_get_bits(eht->data[8],1407 IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_B7_B1);1408 enum nl80211_eht_ru_alloc nl_ru;1409 1410 /* Using D1.5 Table 9-53a - Encoding of PS160 and RU Allocation subfields1411 * in an EHT variant User Info field1412 */1413 1414 switch (ru) {1415 case 0 ... 36:1416 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_26;1417 break;1418 case 37 ... 52:1419 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_52;1420 break;1421 case 53 ... 60:1422 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_106;1423 break;1424 case 61 ... 64:1425 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_242;1426 break;1427 case 65 ... 66:1428 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_484;1429 break;1430 case 67:1431 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_996;1432 break;1433 case 68:1434 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_2x996;1435 break;1436 case 69:1437 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_4x996;1438 break;1439 case 70 ... 81:1440 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_52P26;1441 break;1442 case 82 ... 89:1443 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_106P26;1444 break;1445 case 90 ... 93:1446 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_484P242;1447 break;1448 case 94 ... 95:1449 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_996P484;1450 break;1451 case 96 ... 99:1452 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_996P484P242;1453 break;1454 case 100 ... 103:1455 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_2x996P484;1456 break;1457 case 104:1458 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_3x996;1459 break;1460 case 105 ... 106:1461 nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_3x996P484;1462 break;1463 default:1464 return;1465 }1466 1467 rx_status->bw = RATE_INFO_BW_EHT_RU;1468 rx_status->eht.ru = nl_ru;1469}1470 1471static void iwl_mvm_decode_eht_phy_data(struct iwl_mvm *mvm,1472 struct iwl_mvm_rx_phy_data *phy_data,1473 struct ieee80211_rx_status *rx_status,1474 struct ieee80211_radiotap_eht *eht,1475 struct ieee80211_radiotap_eht_usig *usig)1476 1477{1478 __le32 data0 = phy_data->d0;1479 __le32 data1 = phy_data->d1;1480 __le32 usig_a1 = phy_data->rx_vec[0];1481 u8 info_type = phy_data->info_type;1482 1483 /* Not in EHT range */1484 if (info_type < IWL_RX_PHY_INFO_TYPE_EHT_MU ||1485 info_type > IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT)1486 return;1487 1488 usig->common |= cpu_to_le321489 (IEEE80211_RADIOTAP_EHT_USIG_COMMON_UL_DL_KNOWN |1490 IEEE80211_RADIOTAP_EHT_USIG_COMMON_BSS_COLOR_KNOWN);1491 if (phy_data->with_data) {1492 usig->common |= LE32_DEC_ENC(data0,1493 IWL_RX_PHY_DATA0_EHT_UPLINK,1494 IEEE80211_RADIOTAP_EHT_USIG_COMMON_UL_DL);1495 usig->common |= LE32_DEC_ENC(data0,1496 IWL_RX_PHY_DATA0_EHT_BSS_COLOR_MASK,1497 IEEE80211_RADIOTAP_EHT_USIG_COMMON_BSS_COLOR);1498 } else {1499 usig->common |= LE32_DEC_ENC(usig_a1,1500 IWL_RX_USIG_A1_UL_FLAG,1501 IEEE80211_RADIOTAP_EHT_USIG_COMMON_UL_DL);1502 usig->common |= LE32_DEC_ENC(usig_a1,1503 IWL_RX_USIG_A1_BSS_COLOR,1504 IEEE80211_RADIOTAP_EHT_USIG_COMMON_BSS_COLOR);1505 }1506 1507 if (fw_has_capa(&mvm->fw->ucode_capa,1508 IWL_UCODE_TLV_CAPA_SNIFF_VALIDATE_SUPPORT)) {1509 usig->common |=1510 cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_VALIDATE_BITS_CHECKED);1511 usig->common |=1512 LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_VALIDATE,1513 IEEE80211_RADIOTAP_EHT_USIG_COMMON_VALIDATE_BITS_OK);1514 }1515 1516 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_SPATIAL_REUSE);1517 eht->data[0] |= LE32_DEC_ENC(data0,1518 IWL_RX_PHY_DATA0_ETH_SPATIAL_REUSE_MASK,1519 IEEE80211_RADIOTAP_EHT_DATA0_SPATIAL_REUSE);1520 1521 /* All RU allocating size/index is in TB format */1522 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_RU_ALLOC_TB_FMT);1523 eht->data[8] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PS160,1524 IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_PS_160);1525 eht->data[8] |= LE32_DEC_ENC(data1, IWL_RX_PHY_DATA1_EHT_RU_ALLOC_B0,1526 IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_B0);1527 eht->data[8] |= LE32_DEC_ENC(data1, IWL_RX_PHY_DATA1_EHT_RU_ALLOC_B1_B7,1528 IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_B7_B1);1529 1530 iwl_mvm_decode_eht_ru(mvm, rx_status, eht);1531 1532 /* We only get here in case of IWL_RX_MPDU_PHY_TSF_OVERLOAD is set1533 * which is on only in case of monitor mode so no need to check monitor1534 * mode1535 */1536 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_PRIMARY_80);1537 eht->data[1] |=1538 le32_encode_bits(mvm->monitor_p80,1539 IEEE80211_RADIOTAP_EHT_DATA1_PRIMARY_80);1540 1541 usig->common |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_TXOP_KNOWN);1542 if (phy_data->with_data)1543 usig->common |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_TXOP_DUR_MASK,1544 IEEE80211_RADIOTAP_EHT_USIG_COMMON_TXOP);1545 else1546 usig->common |= LE32_DEC_ENC(usig_a1, IWL_RX_USIG_A1_TXOP_DURATION,1547 IEEE80211_RADIOTAP_EHT_USIG_COMMON_TXOP);1548 1549 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_LDPC_EXTRA_SYM_OM);1550 eht->data[0] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_LDPC_EXT_SYM,1551 IEEE80211_RADIOTAP_EHT_DATA0_LDPC_EXTRA_SYM_OM);1552 1553 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_PRE_PADD_FACOR_OM);1554 eht->data[0] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PRE_FEC_PAD_MASK,1555 IEEE80211_RADIOTAP_EHT_DATA0_PRE_PADD_FACOR_OM);1556 1557 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_PE_DISAMBIGUITY_OM);1558 eht->data[0] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PE_DISAMBIG,1559 IEEE80211_RADIOTAP_EHT_DATA0_PE_DISAMBIGUITY_OM);1560 1561 /* TODO: what about IWL_RX_PHY_DATA0_EHT_BW320_SLOT */1562 1563 if (!le32_get_bits(data0, IWL_RX_PHY_DATA0_EHT_SIGA_CRC_OK))1564 usig->common |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_BAD_USIG_CRC);1565 1566 usig->common |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_PHY_VER_KNOWN);1567 usig->common |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PHY_VER,1568 IEEE80211_RADIOTAP_EHT_USIG_COMMON_PHY_VER);1569 1570 /*1571 * TODO: what about TB - IWL_RX_PHY_DATA1_EHT_TB_PILOT_TYPE,1572 * IWL_RX_PHY_DATA1_EHT_TB_LOW_SS1573 */1574 1575 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_EHT_LTF);1576 eht->data[0] |= LE32_DEC_ENC(data1, IWL_RX_PHY_DATA1_EHT_SIG_LTF_NUM,1577 IEEE80211_RADIOTAP_EHT_DATA0_EHT_LTF);1578 1579 if (info_type == IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT ||1580 info_type == IWL_RX_PHY_INFO_TYPE_EHT_TB)1581 iwl_mvm_decode_eht_ext_tb(mvm, phy_data, rx_status, eht, usig);1582 1583 if (info_type == IWL_RX_PHY_INFO_TYPE_EHT_MU_EXT ||1584 info_type == IWL_RX_PHY_INFO_TYPE_EHT_MU)1585 iwl_mvm_decode_eht_ext_mu(mvm, phy_data, rx_status, eht, usig);1586}1587 1588static void iwl_mvm_rx_eht(struct iwl_mvm *mvm, struct sk_buff *skb,1589 struct iwl_mvm_rx_phy_data *phy_data,1590 int queue)1591{1592 struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);1593 1594 struct ieee80211_radiotap_eht *eht;1595 struct ieee80211_radiotap_eht_usig *usig;1596 size_t eht_len = sizeof(*eht);1597 1598 u32 rate_n_flags = phy_data->rate_n_flags;1599 u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK;1600 /* EHT and HE have the same valus for LTF */1601 u8 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_UNKNOWN;1602 u16 phy_info = phy_data->phy_info;1603 u32 bw;1604 1605 /* u32 for 1 user_info */1606 if (phy_data->with_data)1607 eht_len += sizeof(u32);1608 1609 eht = iwl_mvm_radiotap_put_tlv(skb, IEEE80211_RADIOTAP_EHT, eht_len);1610 1611 usig = iwl_mvm_radiotap_put_tlv(skb, IEEE80211_RADIOTAP_EHT_USIG,1612 sizeof(*usig));1613 rx_status->flag |= RX_FLAG_RADIOTAP_TLV_AT_END;1614 usig->common |=1615 cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_BW_KNOWN);1616 1617 /* specific handling for 320MHz */1618 bw = FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK, rate_n_flags);1619 if (bw == RATE_MCS_CHAN_WIDTH_320_VAL)1620 bw += FIELD_GET(IWL_RX_PHY_DATA0_EHT_BW320_SLOT,1621 le32_to_cpu(phy_data->d0));1622 1623 usig->common |= cpu_to_le321624 (FIELD_PREP(IEEE80211_RADIOTAP_EHT_USIG_COMMON_BW, bw));1625 1626 /* report the AMPDU-EOF bit on single frames */1627 if (!queue && !(phy_info & IWL_RX_MPDU_PHY_AMPDU)) {1628 rx_status->flag |= RX_FLAG_AMPDU_DETAILS;1629 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;1630 if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_EHT_DELIM_EOF))1631 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;1632 }1633 1634 /* update aggregation data for monitor sake on default queue */1635 if (!queue && (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) &&1636 (phy_info & IWL_RX_MPDU_PHY_AMPDU) && phy_data->first_subframe) {1637 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;1638 if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_EHT_DELIM_EOF))1639 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;1640 }1641 1642 if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)1643 iwl_mvm_decode_eht_phy_data(mvm, phy_data, rx_status, eht, usig);1644 1645#define CHECK_TYPE(F) \1646 BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA1_FORMAT_ ## F != \1647 (RATE_MCS_HE_TYPE_ ## F >> RATE_MCS_HE_TYPE_POS))1648 1649 CHECK_TYPE(SU);1650 CHECK_TYPE(EXT_SU);1651 CHECK_TYPE(MU);1652 CHECK_TYPE(TRIG);1653 1654 switch (FIELD_GET(RATE_MCS_HE_GI_LTF_MSK, rate_n_flags)) {1655 case 0:1656 if (he_type == RATE_MCS_HE_TYPE_TRIG) {1657 rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_1_6;1658 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_1X;1659 } else {1660 rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_0_8;1661 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;1662 }1663 break;1664 case 1:1665 rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_1_6;1666 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;1667 break;1668 case 2:1669 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;1670 if (he_type == RATE_MCS_HE_TYPE_TRIG)1671 rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_3_2;1672 else1673 rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_0_8;1674 break;1675 case 3:1676 if (he_type != RATE_MCS_HE_TYPE_TRIG) {1677 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;1678 rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_3_2;1679 }1680 break;1681 default:1682 /* nothing here */1683 break;1684 }1685 1686 if (ltf != IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_UNKNOWN) {1687 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_GI);1688 eht->data[0] |= cpu_to_le321689 (FIELD_PREP(IEEE80211_RADIOTAP_EHT_DATA0_LTF,1690 ltf) |1691 FIELD_PREP(IEEE80211_RADIOTAP_EHT_DATA0_GI,1692 rx_status->eht.gi));1693 }1694 1695 1696 if (!phy_data->with_data) {1697 eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_NSS_S |1698 IEEE80211_RADIOTAP_EHT_KNOWN_BEAMFORMED_S);1699 eht->data[7] |=1700 le32_encode_bits(le32_get_bits(phy_data->rx_vec[2],1701 RX_NO_DATA_RX_VEC2_EHT_NSTS_MSK),1702 IEEE80211_RADIOTAP_EHT_DATA7_NSS_S);1703 if (rate_n_flags & RATE_MCS_BF_MSK)1704 eht->data[7] |=1705 cpu_to_le32(IEEE80211_RADIOTAP_EHT_DATA7_BEAMFORMED_S);1706 } else {1707 eht->user_info[0] |=1708 cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_MCS_KNOWN |1709 IEEE80211_RADIOTAP_EHT_USER_INFO_CODING_KNOWN |1710 IEEE80211_RADIOTAP_EHT_USER_INFO_NSS_KNOWN_O |1711 IEEE80211_RADIOTAP_EHT_USER_INFO_BEAMFORMING_KNOWN_O |1712 IEEE80211_RADIOTAP_EHT_USER_INFO_DATA_FOR_USER);1713 1714 if (rate_n_flags & RATE_MCS_BF_MSK)1715 eht->user_info[0] |=1716 cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_BEAMFORMING_O);1717 1718 if (rate_n_flags & RATE_MCS_LDPC_MSK)1719 eht->user_info[0] |=1720 cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_CODING);1721 1722 eht->user_info[0] |= cpu_to_le321723 (FIELD_PREP(IEEE80211_RADIOTAP_EHT_USER_INFO_MCS,1724 FIELD_GET(RATE_VHT_MCS_RATE_CODE_MSK,1725 rate_n_flags)) |1726 FIELD_PREP(IEEE80211_RADIOTAP_EHT_USER_INFO_NSS_O,1727 FIELD_GET(RATE_MCS_NSS_MSK, rate_n_flags)));1728 }1729}1730 1731static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct sk_buff *skb,1732 struct iwl_mvm_rx_phy_data *phy_data,1733 int queue)1734{1735 struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);1736 struct ieee80211_radiotap_he *he = NULL;1737 struct ieee80211_radiotap_he_mu *he_mu = NULL;1738 u32 rate_n_flags = phy_data->rate_n_flags;1739 u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK;1740 u8 ltf;1741 static const struct ieee80211_radiotap_he known = {1742 .data1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_DATA_MCS_KNOWN |1743 IEEE80211_RADIOTAP_HE_DATA1_DATA_DCM_KNOWN |1744 IEEE80211_RADIOTAP_HE_DATA1_STBC_KNOWN |1745 IEEE80211_RADIOTAP_HE_DATA1_CODING_KNOWN),1746 .data2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_GI_KNOWN |1747 IEEE80211_RADIOTAP_HE_DATA2_TXBF_KNOWN),1748 };1749 static const struct ieee80211_radiotap_he_mu mu_known = {1750 .flags1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS_KNOWN |1751 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM_KNOWN |1752 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_SYMS_USERS_KNOWN |1753 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_COMP_KNOWN),1754 .flags2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW_KNOWN |1755 IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_KNOWN),1756 };1757 u16 phy_info = phy_data->phy_info;1758 1759 he = skb_put_data(skb, &known, sizeof(known));1760 rx_status->flag |= RX_FLAG_RADIOTAP_HE;1761 1762 if (phy_data->info_type == IWL_RX_PHY_INFO_TYPE_HE_MU ||1763 phy_data->info_type == IWL_RX_PHY_INFO_TYPE_HE_MU_EXT) {1764 he_mu = skb_put_data(skb, &mu_known, sizeof(mu_known));1765 rx_status->flag |= RX_FLAG_RADIOTAP_HE_MU;1766 }1767 1768 /* report the AMPDU-EOF bit on single frames */1769 if (!queue && !(phy_info & IWL_RX_MPDU_PHY_AMPDU)) {1770 rx_status->flag |= RX_FLAG_AMPDU_DETAILS;1771 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;1772 if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_HE_DELIM_EOF))1773 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;1774 }1775 1776 if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)1777 iwl_mvm_decode_he_phy_data(mvm, phy_data, he, he_mu, rx_status,1778 queue);1779 1780 /* update aggregation data for monitor sake on default queue */1781 if (!queue && (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) &&1782 (phy_info & IWL_RX_MPDU_PHY_AMPDU) && phy_data->first_subframe) {1783 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;1784 if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_EHT_DELIM_EOF))1785 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;1786 }1787 1788 if (he_type == RATE_MCS_HE_TYPE_EXT_SU &&1789 rate_n_flags & RATE_MCS_HE_106T_MSK) {1790 rx_status->bw = RATE_INFO_BW_HE_RU;1791 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106;1792 }1793 1794 /* actually data is filled in mac80211 */1795 if (he_type == RATE_MCS_HE_TYPE_SU ||1796 he_type == RATE_MCS_HE_TYPE_EXT_SU)1797 he->data1 |=1798 cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN);1799 1800#define CHECK_TYPE(F) \1801 BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA1_FORMAT_ ## F != \1802 (RATE_MCS_HE_TYPE_ ## F >> RATE_MCS_HE_TYPE_POS))1803 1804 CHECK_TYPE(SU);1805 CHECK_TYPE(EXT_SU);1806 CHECK_TYPE(MU);1807 CHECK_TYPE(TRIG);1808 1809 he->data1 |= cpu_to_le16(he_type >> RATE_MCS_HE_TYPE_POS);1810 1811 if (rate_n_flags & RATE_MCS_BF_MSK)1812 he->data5 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA5_TXBF);1813 1814 switch ((rate_n_flags & RATE_MCS_HE_GI_LTF_MSK) >>1815 RATE_MCS_HE_GI_LTF_POS) {1816 case 0:1817 if (he_type == RATE_MCS_HE_TYPE_TRIG)1818 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;1819 else1820 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;1821 if (he_type == RATE_MCS_HE_TYPE_MU)1822 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;1823 else1824 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_1X;1825 break;1826 case 1:1827 if (he_type == RATE_MCS_HE_TYPE_TRIG)1828 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;1829 else1830 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;1831 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;1832 break;1833 case 2:1834 if (he_type == RATE_MCS_HE_TYPE_TRIG) {1835 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_3_2;1836 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;1837 } else {1838 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;1839 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;1840 }1841 break;1842 case 3:1843 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_3_2;1844 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;1845 break;1846 case 4:1847 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;1848 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;1849 break;1850 default:1851 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_UNKNOWN;1852 }1853 1854 he->data5 |= le16_encode_bits(ltf,1855 IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE);1856}1857 1858static void iwl_mvm_decode_lsig(struct sk_buff *skb,1859 struct iwl_mvm_rx_phy_data *phy_data)1860{1861 struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);1862 struct ieee80211_radiotap_lsig *lsig;1863 1864 switch (phy_data->info_type) {1865 case IWL_RX_PHY_INFO_TYPE_HT:1866 case IWL_RX_PHY_INFO_TYPE_VHT_SU:1867 case IWL_RX_PHY_INFO_TYPE_VHT_MU:1868 case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:1869 case IWL_RX_PHY_INFO_TYPE_HE_SU:1870 case IWL_RX_PHY_INFO_TYPE_HE_MU:1871 case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:1872 case IWL_RX_PHY_INFO_TYPE_HE_TB:1873 case IWL_RX_PHY_INFO_TYPE_EHT_MU:1874 case IWL_RX_PHY_INFO_TYPE_EHT_TB:1875 case IWL_RX_PHY_INFO_TYPE_EHT_MU_EXT:1876 case IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT:1877 lsig = skb_put(skb, sizeof(*lsig));1878 lsig->data1 = cpu_to_le16(IEEE80211_RADIOTAP_LSIG_DATA1_LENGTH_KNOWN);1879 lsig->data2 = le16_encode_bits(le32_get_bits(phy_data->d1,1880 IWL_RX_PHY_DATA1_LSIG_LEN_MASK),1881 IEEE80211_RADIOTAP_LSIG_DATA2_LENGTH);1882 rx_status->flag |= RX_FLAG_RADIOTAP_LSIG;1883 break;1884 default:1885 break;1886 }1887}1888 1889struct iwl_rx_sta_csa {1890 bool all_sta_unblocked;1891 struct ieee80211_vif *vif;1892};1893 1894static void iwl_mvm_rx_get_sta_block_tx(void *data, struct ieee80211_sta *sta)1895{1896 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);1897 struct iwl_rx_sta_csa *rx_sta_csa = data;1898 1899 if (mvmsta->vif != rx_sta_csa->vif)1900 return;1901 1902 if (mvmsta->disable_tx)1903 rx_sta_csa->all_sta_unblocked = false;1904}1905 1906/*1907 * Note: requires also rx_status->band to be prefilled, as well1908 * as phy_data (apart from phy_data->info_type)1909 */1910static void iwl_mvm_rx_fill_status(struct iwl_mvm *mvm,1911 struct sk_buff *skb,1912 struct iwl_mvm_rx_phy_data *phy_data,1913 int queue)1914{1915 struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);1916 u32 rate_n_flags = phy_data->rate_n_flags;1917 u8 stbc = u32_get_bits(rate_n_flags, RATE_MCS_STBC_MSK);1918 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK;1919 bool is_sgi;1920 1921 phy_data->info_type = IWL_RX_PHY_INFO_TYPE_NONE;1922 1923 if (phy_data->phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)1924 phy_data->info_type =1925 le32_get_bits(phy_data->d1,1926 IWL_RX_PHY_DATA1_INFO_TYPE_MASK);1927 1928 /* This may be overridden by iwl_mvm_rx_he() to HE_RU */1929 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {1930 case RATE_MCS_CHAN_WIDTH_20:1931 break;1932 case RATE_MCS_CHAN_WIDTH_40:1933 rx_status->bw = RATE_INFO_BW_40;1934 break;1935 case RATE_MCS_CHAN_WIDTH_80:1936 rx_status->bw = RATE_INFO_BW_80;1937 break;1938 case RATE_MCS_CHAN_WIDTH_160:1939 rx_status->bw = RATE_INFO_BW_160;1940 break;1941 case RATE_MCS_CHAN_WIDTH_320:1942 rx_status->bw = RATE_INFO_BW_320;1943 break;1944 }1945 1946 /* must be before L-SIG data */1947 if (format == RATE_MCS_HE_MSK)1948 iwl_mvm_rx_he(mvm, skb, phy_data, queue);1949 1950 iwl_mvm_decode_lsig(skb, phy_data);1951 1952 rx_status->device_timestamp = phy_data->gp2_on_air_rise;1953 1954 if (mvm->rx_ts_ptp && mvm->monitor_on) {1955 u64 adj_time =1956 iwl_mvm_ptp_get_adj_time(mvm, phy_data->gp2_on_air_rise * NSEC_PER_USEC);1957 1958 rx_status->mactime = div64_u64(adj_time, NSEC_PER_USEC);1959 rx_status->flag |= RX_FLAG_MACTIME_IS_RTAP_TS64;1960 rx_status->flag &= ~RX_FLAG_MACTIME;1961 }1962 1963 rx_status->freq = ieee80211_channel_to_frequency(phy_data->channel,1964 rx_status->band);1965 iwl_mvm_get_signal_strength(mvm, rx_status, rate_n_flags,1966 phy_data->energy_a, phy_data->energy_b);1967 1968 /* using TLV format and must be after all fixed len fields */1969 if (format == RATE_MCS_EHT_MSK)1970 iwl_mvm_rx_eht(mvm, skb, phy_data, queue);1971 1972 if (unlikely(mvm->monitor_on))1973 iwl_mvm_add_rtap_sniffer_config(mvm, skb);1974 1975 is_sgi = format == RATE_MCS_HE_MSK ?1976 iwl_he_is_sgi(rate_n_flags) :1977 rate_n_flags & RATE_MCS_SGI_MSK;1978 1979 if (!(format == RATE_MCS_CCK_MSK) && is_sgi)1980 rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI;1981 1982 if (rate_n_flags & RATE_MCS_LDPC_MSK)1983 rx_status->enc_flags |= RX_ENC_FLAG_LDPC;1984 1985 switch (format) {1986 case RATE_MCS_VHT_MSK:1987 rx_status->encoding = RX_ENC_VHT;1988 break;1989 case RATE_MCS_HE_MSK:1990 rx_status->encoding = RX_ENC_HE;1991 rx_status->he_dcm =1992 !!(rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK);1993 break;1994 case RATE_MCS_EHT_MSK:1995 rx_status->encoding = RX_ENC_EHT;1996 break;1997 }1998 1999 switch (format) {2000 case RATE_MCS_HT_MSK:2001 rx_status->encoding = RX_ENC_HT;2002 rx_status->rate_idx = RATE_HT_MCS_INDEX(rate_n_flags);2003 rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;2004 break;2005 case RATE_MCS_VHT_MSK:2006 case RATE_MCS_HE_MSK:2007 case RATE_MCS_EHT_MSK:2008 rx_status->nss =2009 u32_get_bits(rate_n_flags, RATE_MCS_NSS_MSK) + 1;2010 rx_status->rate_idx = rate_n_flags & RATE_MCS_CODE_MSK;2011 rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;2012 break;2013 default: {2014 int rate = iwl_mvm_legacy_hw_idx_to_mac80211_idx(rate_n_flags,2015 rx_status->band);2016 2017 rx_status->rate_idx = rate;2018 2019 if ((rate < 0 || rate > 0xFF)) {2020 rx_status->rate_idx = 0;2021 if (net_ratelimit())2022 IWL_ERR(mvm, "Invalid rate flags 0x%x, band %d,\n",2023 rate_n_flags, rx_status->band);2024 }2025 2026 break;2027 }2028 }2029}2030 2031void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,2032 struct iwl_rx_cmd_buffer *rxb, int queue)2033{2034 struct ieee80211_rx_status *rx_status;2035 struct iwl_rx_packet *pkt = rxb_addr(rxb);2036 struct iwl_rx_mpdu_desc *desc = (void *)pkt->data;2037 struct ieee80211_hdr *hdr;2038 u32 len;2039 u32 pkt_len = iwl_rx_packet_payload_len(pkt);2040 struct ieee80211_sta *sta = NULL;2041 struct sk_buff *skb;2042 u8 crypt_len = 0;2043 u8 sta_id = le32_get_bits(desc->status, IWL_RX_MPDU_STATUS_STA_ID);2044 size_t desc_size;2045 struct iwl_mvm_rx_phy_data phy_data = {};2046 u32 format;2047 2048 if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)))2049 return;2050 2051 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)2052 desc_size = sizeof(*desc);2053 else2054 desc_size = IWL_RX_DESC_SIZE_V1;2055 2056 if (unlikely(pkt_len < desc_size)) {2057 IWL_DEBUG_DROP(mvm, "Bad REPLY_RX_MPDU_CMD size\n");2058 return;2059 }2060 2061 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) {2062 phy_data.rate_n_flags = le32_to_cpu(desc->v3.rate_n_flags);2063 phy_data.channel = desc->v3.channel;2064 phy_data.gp2_on_air_rise = le32_to_cpu(desc->v3.gp2_on_air_rise);2065 phy_data.energy_a = desc->v3.energy_a;2066 phy_data.energy_b = desc->v3.energy_b;2067 2068 phy_data.d0 = desc->v3.phy_data0;2069 phy_data.d1 = desc->v3.phy_data1;2070 phy_data.d2 = desc->v3.phy_data2;2071 phy_data.d3 = desc->v3.phy_data3;2072 phy_data.eht_d4 = desc->phy_eht_data4;2073 phy_data.d5 = desc->v3.phy_data5;2074 } else {2075 phy_data.rate_n_flags = le32_to_cpu(desc->v1.rate_n_flags);2076 phy_data.channel = desc->v1.channel;2077 phy_data.gp2_on_air_rise = le32_to_cpu(desc->v1.gp2_on_air_rise);2078 phy_data.energy_a = desc->v1.energy_a;2079 phy_data.energy_b = desc->v1.energy_b;2080 2081 phy_data.d0 = desc->v1.phy_data0;2082 phy_data.d1 = desc->v1.phy_data1;2083 phy_data.d2 = desc->v1.phy_data2;2084 phy_data.d3 = desc->v1.phy_data3;2085 }2086 2087 if (iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,2088 REPLY_RX_MPDU_CMD, 0) < 4) {2089 phy_data.rate_n_flags = iwl_new_rate_from_v1(phy_data.rate_n_flags);2090 IWL_DEBUG_DROP(mvm, "Got old format rate, converting. New rate: 0x%x\n",2091 phy_data.rate_n_flags);2092 }2093 2094 format = phy_data.rate_n_flags & RATE_MCS_MOD_TYPE_MSK;2095 2096 len = le16_to_cpu(desc->mpdu_len);2097 2098 if (unlikely(len + desc_size > pkt_len)) {2099 IWL_DEBUG_DROP(mvm, "FW lied about packet len\n");2100 return;2101 }2102 2103 phy_data.with_data = true;2104 phy_data.phy_info = le16_to_cpu(desc->phy_info);2105 phy_data.d4 = desc->phy_data4;2106 2107 hdr = (void *)(pkt->data + desc_size);2108 /* Dont use dev_alloc_skb(), we'll have enough headroom once2109 * ieee80211_hdr pulled.2110 */2111 skb = alloc_skb(128, GFP_ATOMIC);2112 if (!skb) {2113 IWL_ERR(mvm, "alloc_skb failed\n");2114 return;2115 }2116 2117 if (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_PAD) {2118 /*2119 * If the device inserted padding it means that (it thought)2120 * the 802.11 header wasn't a multiple of 4 bytes long. In2121 * this case, reserve two bytes at the start of the SKB to2122 * align the payload properly in case we end up copying it.2123 */2124 skb_reserve(skb, 2);2125 }2126 2127 rx_status = IEEE80211_SKB_RXCB(skb);2128 2129 /*2130 * Keep packets with CRC errors (and with overrun) for monitor mode2131 * (otherwise the firmware discards them) but mark them as bad.2132 */2133 if (!(desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_CRC_OK)) ||2134 !(desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_OVERRUN_OK))) {2135 IWL_DEBUG_RX(mvm, "Bad CRC or FIFO: 0x%08X.\n",2136 le32_to_cpu(desc->status));2137 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;2138 }2139 2140 /* set the preamble flag if appropriate */2141 if (format == RATE_MCS_CCK_MSK &&2142 phy_data.phy_info & IWL_RX_MPDU_PHY_SHORT_PREAMBLE)2143 rx_status->enc_flags |= RX_ENC_FLAG_SHORTPRE;2144 2145 if (likely(!(phy_data.phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD))) {2146 u64 tsf_on_air_rise;2147 2148 if (mvm->trans->trans_cfg->device_family >=2149 IWL_DEVICE_FAMILY_AX210)2150 tsf_on_air_rise = le64_to_cpu(desc->v3.tsf_on_air_rise);2151 else2152 tsf_on_air_rise = le64_to_cpu(desc->v1.tsf_on_air_rise);2153 2154 rx_status->mactime = tsf_on_air_rise;2155 /* TSF as indicated by the firmware is at INA time */2156 rx_status->flag |= RX_FLAG_MACTIME_PLCP_START;2157 }2158 2159 if (iwl_mvm_is_band_in_rx_supported(mvm)) {2160 u8 band = BAND_IN_RX_STATUS(desc->mac_phy_idx);2161 2162 rx_status->band = iwl_mvm_nl80211_band_from_phy(band);2163 } else {2164 rx_status->band = phy_data.channel > 14 ? NL80211_BAND_5GHZ :2165 NL80211_BAND_2GHZ;2166 }2167 2168 /* update aggregation data for monitor sake on default queue */2169 if (!queue && (phy_data.phy_info & IWL_RX_MPDU_PHY_AMPDU)) {2170 bool toggle_bit;2171 2172 toggle_bit = phy_data.phy_info & IWL_RX_MPDU_PHY_AMPDU_TOGGLE;2173 rx_status->flag |= RX_FLAG_AMPDU_DETAILS;2174 /*2175 * Toggle is switched whenever new aggregation starts. Make2176 * sure ampdu_reference is never 0 so we can later use it to2177 * see if the frame was really part of an A-MPDU or not.2178 */2179 if (toggle_bit != mvm->ampdu_toggle) {2180 mvm->ampdu_ref++;2181 if (mvm->ampdu_ref == 0)2182 mvm->ampdu_ref++;2183 mvm->ampdu_toggle = toggle_bit;2184 phy_data.first_subframe = true;2185 }2186 rx_status->ampdu_reference = mvm->ampdu_ref;2187 }2188 2189 rcu_read_lock();2190 2191 if (desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_SRC_STA_FOUND)) {2192 if (!WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) {2193 struct ieee80211_link_sta *link_sta;2194 2195 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);2196 if (IS_ERR(sta))2197 sta = NULL;2198 link_sta = rcu_dereference(mvm->fw_id_to_link_sta[sta_id]);2199 2200 if (sta && sta->valid_links && link_sta) {2201 rx_status->link_valid = 1;2202 rx_status->link_id = link_sta->link_id;2203 }2204 }2205 } else if (!is_multicast_ether_addr(hdr->addr2)) {2206 /*2207 * This is fine since we prevent two stations with the same2208 * address from being added.2209 */2210 sta = ieee80211_find_sta_by_ifaddr(mvm->hw, hdr->addr2, NULL);2211 }2212 2213 if (iwl_mvm_rx_crypto(mvm, sta, hdr, rx_status, phy_data.phy_info, desc,2214 le32_to_cpu(pkt->len_n_flags), queue,2215 &crypt_len)) {2216 kfree_skb(skb);2217 goto out;2218 }2219 2220 iwl_mvm_rx_fill_status(mvm, skb, &phy_data, queue);2221 2222 if (sta) {2223 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);2224 struct ieee80211_vif *tx_blocked_vif =2225 rcu_dereference(mvm->csa_tx_blocked_vif);2226 u8 baid = (u8)((le32_to_cpu(desc->reorder_data) &2227 IWL_RX_MPDU_REORDER_BAID_MASK) >>2228 IWL_RX_MPDU_REORDER_BAID_SHIFT);2229 struct iwl_fw_dbg_trigger_tlv *trig;2230 struct ieee80211_vif *vif = mvmsta->vif;2231 2232 if (!mvm->tcm.paused && len >= sizeof(*hdr) &&2233 !is_multicast_ether_addr(hdr->addr1) &&2234 ieee80211_is_data(hdr->frame_control) &&2235 time_after(jiffies, mvm->tcm.ts + MVM_TCM_PERIOD))2236 schedule_delayed_work(&mvm->tcm.work, 0);2237 2238 /*2239 * We have tx blocked stations (with CS bit). If we heard2240 * frames from a blocked station on a new channel we can2241 * TX to it again.2242 */2243 if (unlikely(tx_blocked_vif) && tx_blocked_vif == vif) {2244 struct iwl_mvm_vif *mvmvif =2245 iwl_mvm_vif_from_mac80211(tx_blocked_vif);2246 struct iwl_rx_sta_csa rx_sta_csa = {2247 .all_sta_unblocked = true,2248 .vif = tx_blocked_vif,2249 };2250 2251 if (mvmvif->csa_target_freq == rx_status->freq)2252 iwl_mvm_sta_modify_disable_tx_ap(mvm, sta,2253 false);2254 ieee80211_iterate_stations_atomic(mvm->hw,2255 iwl_mvm_rx_get_sta_block_tx,2256 &rx_sta_csa);2257 2258 if (rx_sta_csa.all_sta_unblocked) {2259 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);2260 /* Unblock BCAST / MCAST station */2261 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);2262 cancel_delayed_work(&mvm->cs_tx_unblock_dwork);2263 }2264 }2265 2266 rs_update_last_rssi(mvm, mvmsta, rx_status);2267 2268 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt,2269 ieee80211_vif_to_wdev(vif),2270 FW_DBG_TRIGGER_RSSI);2271 2272 if (trig && ieee80211_is_beacon(hdr->frame_control)) {2273 struct iwl_fw_dbg_trigger_low_rssi *rssi_trig;2274 s32 rssi;2275 2276 rssi_trig = (void *)trig->data;2277 rssi = le32_to_cpu(rssi_trig->rssi);2278 2279 if (rx_status->signal < rssi)2280 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,2281 NULL);2282 }2283 2284 if (ieee80211_is_data(hdr->frame_control))2285 iwl_mvm_rx_csum(mvm, sta, skb, pkt);2286 2287 if (iwl_mvm_is_dup(sta, queue, rx_status, hdr, desc)) {2288 IWL_DEBUG_DROP(mvm, "Dropping duplicate packet 0x%x\n",2289 le16_to_cpu(hdr->seq_ctrl));2290 kfree_skb(skb);2291 goto out;2292 }2293 2294 /*2295 * Our hardware de-aggregates AMSDUs but copies the mac header2296 * as it to the de-aggregated MPDUs. We need to turn off the2297 * AMSDU bit in the QoS control ourselves.2298 * In addition, HW reverses addr3 and addr4 - reverse it back.2299 */2300 if ((desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU) &&2301 !WARN_ON(!ieee80211_is_data_qos(hdr->frame_control))) {2302 u8 *qc = ieee80211_get_qos_ctl(hdr);2303 2304 *qc &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT;2305 2306 if (mvm->trans->trans_cfg->device_family ==2307 IWL_DEVICE_FAMILY_9000) {2308 iwl_mvm_flip_address(hdr->addr3);2309 2310 if (ieee80211_has_a4(hdr->frame_control))2311 iwl_mvm_flip_address(hdr->addr4);2312 }2313 }2314 if (baid != IWL_RX_REORDER_DATA_INVALID_BAID) {2315 u32 reorder_data = le32_to_cpu(desc->reorder_data);2316 2317 iwl_mvm_agg_rx_received(mvm, reorder_data, baid);2318 }2319 2320 if (ieee80211_is_data(hdr->frame_control)) {2321 u8 sub_frame_idx = desc->amsdu_info &2322 IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK;2323 2324 /* 0 means not an A-MSDU, and 1 means a new A-MSDU */2325 if (!sub_frame_idx || sub_frame_idx == 1)2326 iwl_mvm_count_mpdu(mvmsta, sta_id, 1, false,2327 queue);2328 }2329 }2330 2331 /* management stuff on default queue */2332 if (!queue) {2333 if (unlikely((ieee80211_is_beacon(hdr->frame_control) ||2334 ieee80211_is_probe_resp(hdr->frame_control)) &&2335 mvm->sched_scan_pass_all ==2336 SCHED_SCAN_PASS_ALL_ENABLED))2337 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_FOUND;2338 2339 if (unlikely(ieee80211_is_beacon(hdr->frame_control) ||2340 ieee80211_is_probe_resp(hdr->frame_control)))2341 rx_status->boottime_ns = ktime_get_boottime_ns();2342 }2343 2344 if (iwl_mvm_create_skb(mvm, skb, hdr, len, crypt_len, rxb)) {2345 kfree_skb(skb);2346 goto out;2347 }2348 2349 if (!iwl_mvm_reorder(mvm, napi, queue, sta, skb, desc) &&2350 likely(!iwl_mvm_time_sync_frame(mvm, skb, hdr->addr2)) &&2351 likely(!iwl_mvm_mei_filter_scan(mvm, skb))) {2352 if (mvm->trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&2353 (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU) &&2354 !(desc->amsdu_info & IWL_RX_MPDU_AMSDU_LAST_SUBFRAME))2355 rx_status->flag |= RX_FLAG_AMSDU_MORE;2356 2357 iwl_mvm_pass_packet_to_mac80211(mvm, napi, skb, queue, sta);2358 }2359out:2360 rcu_read_unlock();2361}2362 2363void iwl_mvm_rx_monitor_no_data(struct iwl_mvm *mvm, struct napi_struct *napi,2364 struct iwl_rx_cmd_buffer *rxb, int queue)2365{2366 struct ieee80211_rx_status *rx_status;2367 struct iwl_rx_packet *pkt = rxb_addr(rxb);2368 struct iwl_rx_no_data_ver_3 *desc = (void *)pkt->data;2369 u32 rssi;2370 struct ieee80211_sta *sta = NULL;2371 struct sk_buff *skb;2372 struct iwl_mvm_rx_phy_data phy_data;2373 u32 format;2374 2375 if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)))2376 return;2377 2378 if (unlikely(iwl_rx_packet_payload_len(pkt) < sizeof(struct iwl_rx_no_data)))2379 return;2380 2381 rssi = le32_to_cpu(desc->rssi);2382 phy_data.d0 = desc->phy_info[0];2383 phy_data.d1 = desc->phy_info[1];2384 phy_data.phy_info = IWL_RX_MPDU_PHY_TSF_OVERLOAD;2385 phy_data.gp2_on_air_rise = le32_to_cpu(desc->on_air_rise_time);2386 phy_data.rate_n_flags = le32_to_cpu(desc->rate);2387 phy_data.energy_a = u32_get_bits(rssi, RX_NO_DATA_CHAIN_A_MSK);2388 phy_data.energy_b = u32_get_bits(rssi, RX_NO_DATA_CHAIN_B_MSK);2389 phy_data.channel = u32_get_bits(rssi, RX_NO_DATA_CHANNEL_MSK);2390 phy_data.with_data = false;2391 phy_data.rx_vec[0] = desc->rx_vec[0];2392 phy_data.rx_vec[1] = desc->rx_vec[1];2393 2394 if (iwl_fw_lookup_notif_ver(mvm->fw, DATA_PATH_GROUP,2395 RX_NO_DATA_NOTIF, 0) < 2) {2396 IWL_DEBUG_DROP(mvm, "Got an old rate format. Old rate: 0x%x\n",2397 phy_data.rate_n_flags);2398 phy_data.rate_n_flags = iwl_new_rate_from_v1(phy_data.rate_n_flags);2399 IWL_DEBUG_DROP(mvm, " Rate after conversion to the new format: 0x%x\n",2400 phy_data.rate_n_flags);2401 }2402 2403 format = phy_data.rate_n_flags & RATE_MCS_MOD_TYPE_MSK;2404 2405 if (iwl_fw_lookup_notif_ver(mvm->fw, DATA_PATH_GROUP,2406 RX_NO_DATA_NOTIF, 0) >= 3) {2407 if (unlikely(iwl_rx_packet_payload_len(pkt) <2408 sizeof(struct iwl_rx_no_data_ver_3)))2409 /* invalid len for ver 3 */2410 return;2411 phy_data.rx_vec[2] = desc->rx_vec[2];2412 phy_data.rx_vec[3] = desc->rx_vec[3];2413 } else {2414 if (format == RATE_MCS_EHT_MSK)2415 /* no support for EHT before version 3 API */2416 return;2417 }2418 2419 /* Dont use dev_alloc_skb(), we'll have enough headroom once2420 * ieee80211_hdr pulled.2421 */2422 skb = alloc_skb(128, GFP_ATOMIC);2423 if (!skb) {2424 IWL_ERR(mvm, "alloc_skb failed\n");2425 return;2426 }2427 2428 rx_status = IEEE80211_SKB_RXCB(skb);2429 2430 /* 0-length PSDU */2431 rx_status->flag |= RX_FLAG_NO_PSDU;2432 2433 /* mark as failed PLCP on any errors to skip checks in mac80211 */2434 if (le32_get_bits(desc->info, RX_NO_DATA_INFO_ERR_MSK) !=2435 RX_NO_DATA_INFO_ERR_NONE)2436 rx_status->flag |= RX_FLAG_FAILED_PLCP_CRC;2437 2438 switch (le32_get_bits(desc->info, RX_NO_DATA_INFO_TYPE_MSK)) {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 where2462 * all radio tap header ends.2463 *2464 * Since data doesn't move data while putting data on skb and that is2465 * the only way we use, data + len is the next place that hdr would be put2466 */2467 skb_set_mac_header(skb, skb->len);2468 2469 /*2470 * Override the nss from the rx_vec since the rate_n_flags has2471 * only 2 bits for the nss which gives a max of 4 ss but there2472 * may be up to 8 spatial streams.2473 */2474 switch (format) {2475 case RATE_MCS_VHT_MSK:2476 rx_status->nss =2477 le32_get_bits(desc->rx_vec[0],2478 RX_NO_DATA_RX_VEC0_VHT_NSTS_MSK) + 1;2479 break;2480 case RATE_MCS_HE_MSK:2481 rx_status->nss =2482 le32_get_bits(desc->rx_vec[0],2483 RX_NO_DATA_RX_VEC0_HE_NSTS_MSK) + 1;2484 break;2485 case RATE_MCS_EHT_MSK:2486 rx_status->nss =2487 le32_get_bits(desc->rx_vec[2],2488 RX_NO_DATA_RX_VEC2_EHT_NSTS_MSK) + 1;2489 }2490 2491 rcu_read_lock();2492 ieee80211_rx_napi(mvm->hw, sta, skb, napi);2493 rcu_read_unlock();2494}2495 2496void iwl_mvm_rx_frame_release(struct iwl_mvm *mvm, struct napi_struct *napi,2497 struct iwl_rx_cmd_buffer *rxb, int queue)2498{2499 struct iwl_rx_packet *pkt = rxb_addr(rxb);2500 struct iwl_frame_release *release = (void *)pkt->data;2501 2502 if (unlikely(iwl_rx_packet_payload_len(pkt) < sizeof(*release)))2503 return;2504 2505 iwl_mvm_release_frames_from_notif(mvm, napi, release->baid,2506 le16_to_cpu(release->nssn),2507 queue);2508}2509 2510void iwl_mvm_rx_bar_frame_release(struct iwl_mvm *mvm, struct napi_struct *napi,2511 struct iwl_rx_cmd_buffer *rxb, int queue)2512{2513 struct iwl_rx_packet *pkt = rxb_addr(rxb);2514 struct iwl_bar_frame_release *release = (void *)pkt->data;2515 unsigned int baid = le32_get_bits(release->ba_info,2516 IWL_BAR_FRAME_RELEASE_BAID_MASK);2517 unsigned int nssn = le32_get_bits(release->ba_info,2518 IWL_BAR_FRAME_RELEASE_NSSN_MASK);2519 unsigned int sta_id = le32_get_bits(release->sta_tid,2520 IWL_BAR_FRAME_RELEASE_STA_MASK);2521 unsigned int tid = le32_get_bits(release->sta_tid,2522 IWL_BAR_FRAME_RELEASE_TID_MASK);2523 struct iwl_mvm_baid_data *baid_data;2524 2525 if (unlikely(iwl_rx_packet_payload_len(pkt) < sizeof(*release)))2526 return;2527 2528 if (WARN_ON_ONCE(baid == IWL_RX_REORDER_DATA_INVALID_BAID ||2529 baid >= ARRAY_SIZE(mvm->baid_map)))2530 return;2531 2532 rcu_read_lock();2533 baid_data = rcu_dereference(mvm->baid_map[baid]);2534 if (!baid_data) {2535 IWL_DEBUG_RX(mvm,2536 "Got valid BAID %d but not allocated, invalid BAR release!\n",2537 baid);2538 goto out;2539 }2540 2541 if (WARN(tid != baid_data->tid || sta_id > IWL_STATION_COUNT_MAX ||2542 !(baid_data->sta_mask & BIT(sta_id)),2543 "baid 0x%x is mapped to sta_mask:0x%x tid:%d, but BAR release received for sta:%d tid:%d\n",2544 baid, baid_data->sta_mask, baid_data->tid, sta_id,2545 tid))2546 goto out;2547 2548 IWL_DEBUG_DROP(mvm, "Received a BAR, expect packet loss: nssn %d\n",2549 nssn);2550 2551 iwl_mvm_release_frames_from_notif(mvm, napi, baid, nssn, queue);2552out:2553 rcu_read_unlock();2554}2555