xref: /linux/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c (revision ab93e0dd72c37d378dd936f031ffb83ff2bd87ce)
1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3  * Copyright (C) 2012-2014, 2018-2025 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 
iwl_mvm_check_pn(struct iwl_mvm * mvm,struct sk_buff * skb,int queue,struct ieee80211_sta * sta)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 */
iwl_mvm_create_skb(struct iwl_mvm * mvm,struct sk_buff * skb,struct ieee80211_hdr * hdr,u16 len,u8 crypt_len,struct iwl_rx_cmd_buffer * rxb)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->mac_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 *
iwl_mvm_radiotap_put_tlv(struct sk_buff * skb,u16 type,u16 len)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 
iwl_mvm_add_rtap_sniffer_config(struct iwl_mvm * mvm,struct sk_buff * skb)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 */
iwl_mvm_pass_packet_to_mac80211(struct iwl_mvm * mvm,struct napi_struct * napi,struct sk_buff * skb,int queue,struct ieee80211_sta * sta)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 {
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 
iwl_mvm_used_average_energy(struct iwl_mvm * mvm,struct iwl_rx_mpdu_desc * desc,struct ieee80211_hdr * hdr,struct ieee80211_rx_status * rx_status)249 static bool iwl_mvm_used_average_energy(struct iwl_mvm *mvm,
250 					struct iwl_rx_mpdu_desc *desc,
251 					struct ieee80211_hdr *hdr,
252 					struct ieee80211_rx_status *rx_status)
253 {
254 	struct iwl_mvm_vif *mvm_vif;
255 	struct ieee80211_vif *vif;
256 	u32 id;
257 
258 	if (unlikely(!hdr || !desc))
259 		return false;
260 
261 	if (likely(!ieee80211_is_beacon(hdr->frame_control)))
262 		return false;
263 
264 	/* for the link conf lookup */
265 	guard(rcu)();
266 
267 	/* MAC or link ID depending on FW, but driver has them equal */
268 	id = u8_get_bits(desc->mac_phy_band,
269 			 IWL_RX_MPDU_MAC_PHY_BAND_MAC_MASK);
270 
271 	/* >= means AUX MAC/link ID, no energy correction needed then */
272 	if (id >= ARRAY_SIZE(mvm->vif_id_to_mac))
273 		return false;
274 
275 	vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, true);
276 	if (!vif)
277 		return false;
278 
279 	mvm_vif = iwl_mvm_vif_from_mac80211(vif);
280 
281 	/*
282 	 * If we know the MAC by MAC or link ID then the frame was
283 	 * received for the link, so by filtering it means it was
284 	 * from the AP the link is connected to.
285 	 */
286 
287 	/* skip also in case we don't have it (yet) */
288 	if (!mvm_vif->deflink.average_beacon_energy)
289 		return false;
290 
291 	IWL_DEBUG_STATS(mvm, "energy override by average %d\n",
292 			mvm_vif->deflink.average_beacon_energy);
293 	rx_status->signal = -mvm_vif->deflink.average_beacon_energy;
294 	return true;
295 }
296 
iwl_mvm_get_signal_strength(struct iwl_mvm * mvm,struct iwl_rx_mpdu_desc * desc,struct ieee80211_hdr * hdr,struct ieee80211_rx_status * rx_status,u32 rate_n_flags,int energy_a,int energy_b)297 static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm,
298 					struct iwl_rx_mpdu_desc *desc,
299 					struct ieee80211_hdr *hdr,
300 					struct ieee80211_rx_status *rx_status,
301 					u32 rate_n_flags, int energy_a,
302 					int energy_b)
303 {
304 	int max_energy;
305 
306 	energy_a = energy_a ? -energy_a : S8_MIN;
307 	energy_b = energy_b ? -energy_b : S8_MIN;
308 	max_energy = max(energy_a, energy_b);
309 
310 	IWL_DEBUG_STATS(mvm, "energy In A %d B %d, and max %d\n",
311 			energy_a, energy_b, max_energy);
312 
313 	if (iwl_mvm_used_average_energy(mvm, desc, hdr, rx_status))
314 		return;
315 
316 	rx_status->signal = max_energy;
317 	rx_status->chains = u32_get_bits(rate_n_flags, RATE_MCS_ANT_AB_MSK);
318 	rx_status->chain_signal[0] = energy_a;
319 	rx_status->chain_signal[1] = energy_b;
320 }
321 
iwl_mvm_rx_mgmt_prot(struct ieee80211_sta * sta,struct ieee80211_hdr * hdr,struct iwl_rx_mpdu_desc * desc,u32 status,struct ieee80211_rx_status * stats)322 static int iwl_mvm_rx_mgmt_prot(struct ieee80211_sta *sta,
323 				struct ieee80211_hdr *hdr,
324 				struct iwl_rx_mpdu_desc *desc,
325 				u32 status,
326 				struct ieee80211_rx_status *stats)
327 {
328 	struct wireless_dev *wdev;
329 	struct iwl_mvm_sta *mvmsta;
330 	struct iwl_mvm_vif *mvmvif;
331 	u8 keyid;
332 	struct ieee80211_key_conf *key;
333 	u32 len = le16_to_cpu(desc->mpdu_len);
334 	const u8 *frame = (void *)hdr;
335 
336 	if ((status & IWL_RX_MPDU_STATUS_SEC_MASK) == IWL_RX_MPDU_STATUS_SEC_NONE)
337 		return 0;
338 
339 	/*
340 	 * For non-beacon, we don't really care. But beacons may
341 	 * be filtered out, and we thus need the firmware's replay
342 	 * detection, otherwise beacons the firmware previously
343 	 * filtered could be replayed, or something like that, and
344 	 * it can filter a lot - though usually only if nothing has
345 	 * changed.
346 	 */
347 	if (!ieee80211_is_beacon(hdr->frame_control))
348 		return 0;
349 
350 	if (!sta)
351 		return -1;
352 
353 	mvmsta = iwl_mvm_sta_from_mac80211(sta);
354 	mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
355 
356 	/* key mismatch - will also report !MIC_OK but we shouldn't count it */
357 	if (!(status & IWL_RX_MPDU_STATUS_KEY_VALID))
358 		goto report;
359 
360 	/* good cases */
361 	if (likely(status & IWL_RX_MPDU_STATUS_MIC_OK &&
362 		   !(status & IWL_RX_MPDU_STATUS_REPLAY_ERROR))) {
363 		stats->flag |= RX_FLAG_DECRYPTED;
364 		return 0;
365 	}
366 
367 	/*
368 	 * both keys will have the same cipher and MIC length, use
369 	 * whichever one is available
370 	 */
371 	key = rcu_dereference(mvmvif->bcn_prot.keys[0]);
372 	if (!key) {
373 		key = rcu_dereference(mvmvif->bcn_prot.keys[1]);
374 		if (!key)
375 			goto report;
376 	}
377 
378 	if (len < key->icv_len + IEEE80211_GMAC_PN_LEN + 2)
379 		goto report;
380 
381 	/* get the real key ID */
382 	keyid = frame[len - key->icv_len - IEEE80211_GMAC_PN_LEN - 2];
383 	/* and if that's the other key, look it up */
384 	if (keyid != key->keyidx) {
385 		/*
386 		 * shouldn't happen since firmware checked, but be safe
387 		 * in case the MIC length is wrong too, for example
388 		 */
389 		if (keyid != 6 && keyid != 7)
390 			return -1;
391 		key = rcu_dereference(mvmvif->bcn_prot.keys[keyid - 6]);
392 		if (!key)
393 			goto report;
394 	}
395 
396 	/* Report status to mac80211 */
397 	if (!(status & IWL_RX_MPDU_STATUS_MIC_OK))
398 		ieee80211_key_mic_failure(key);
399 	else if (status & IWL_RX_MPDU_STATUS_REPLAY_ERROR)
400 		ieee80211_key_replay(key);
401 report:
402 	wdev = ieee80211_vif_to_wdev(mvmsta->vif);
403 	if (wdev->netdev)
404 		cfg80211_rx_unprot_mlme_mgmt(wdev->netdev, (void *)hdr, len);
405 
406 	return -1;
407 }
408 
iwl_mvm_rx_crypto(struct iwl_mvm * mvm,struct ieee80211_sta * sta,struct ieee80211_hdr * hdr,struct ieee80211_rx_status * stats,u16 phy_info,struct iwl_rx_mpdu_desc * desc,u32 pkt_flags,int queue,u8 * crypt_len)409 static int iwl_mvm_rx_crypto(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
410 			     struct ieee80211_hdr *hdr,
411 			     struct ieee80211_rx_status *stats, u16 phy_info,
412 			     struct iwl_rx_mpdu_desc *desc,
413 			     u32 pkt_flags, int queue, u8 *crypt_len)
414 {
415 	u32 status = le32_to_cpu(desc->status);
416 
417 	/*
418 	 * Drop UNKNOWN frames in aggregation, unless in monitor mode
419 	 * (where we don't have the keys).
420 	 * We limit this to aggregation because in TKIP this is a valid
421 	 * scenario, since we may not have the (correct) TTAK (phase 1
422 	 * key) in the firmware.
423 	 */
424 	if (phy_info & IWL_RX_MPDU_PHY_AMPDU &&
425 	    (status & IWL_RX_MPDU_STATUS_SEC_MASK) ==
426 	    IWL_RX_MPDU_STATUS_SEC_UNKNOWN && !mvm->monitor_on) {
427 		IWL_DEBUG_DROP(mvm, "Dropping packets, bad enc status\n");
428 		return -1;
429 	}
430 
431 	if (unlikely(ieee80211_is_mgmt(hdr->frame_control) &&
432 		     !ieee80211_has_protected(hdr->frame_control)))
433 		return iwl_mvm_rx_mgmt_prot(sta, hdr, desc, status, stats);
434 
435 	if (!ieee80211_has_protected(hdr->frame_control) ||
436 	    (status & IWL_RX_MPDU_STATUS_SEC_MASK) ==
437 	    IWL_RX_MPDU_STATUS_SEC_NONE)
438 		return 0;
439 
440 	/* TODO: handle packets encrypted with unknown alg */
441 
442 	switch (status & IWL_RX_MPDU_STATUS_SEC_MASK) {
443 	case IWL_RX_MPDU_STATUS_SEC_CCM:
444 	case IWL_RX_MPDU_STATUS_SEC_GCM:
445 		BUILD_BUG_ON(IEEE80211_CCMP_PN_LEN != IEEE80211_GCMP_PN_LEN);
446 		/* alg is CCM: check MIC only */
447 		if (!(status & IWL_RX_MPDU_STATUS_MIC_OK)) {
448 			IWL_DEBUG_DROP(mvm,
449 				       "Dropping packet, bad MIC (CCM/GCM)\n");
450 			return -1;
451 		}
452 
453 		stats->flag |= RX_FLAG_DECRYPTED | RX_FLAG_MIC_STRIPPED;
454 		*crypt_len = IEEE80211_CCMP_HDR_LEN;
455 		return 0;
456 	case IWL_RX_MPDU_STATUS_SEC_TKIP:
457 		/* Don't drop the frame and decrypt it in SW */
458 		if (!fw_has_api(&mvm->fw->ucode_capa,
459 				IWL_UCODE_TLV_API_DEPRECATE_TTAK) &&
460 		    !(status & IWL_RX_MPDU_RES_STATUS_TTAK_OK))
461 			return 0;
462 
463 		if (mvm->trans->mac_cfg->gen2 &&
464 		    !(status & RX_MPDU_RES_STATUS_MIC_OK))
465 			stats->flag |= RX_FLAG_MMIC_ERROR;
466 
467 		*crypt_len = IEEE80211_TKIP_IV_LEN;
468 		fallthrough;
469 	case IWL_RX_MPDU_STATUS_SEC_WEP:
470 		if (!(status & IWL_RX_MPDU_STATUS_ICV_OK))
471 			return -1;
472 
473 		stats->flag |= RX_FLAG_DECRYPTED;
474 		if ((status & IWL_RX_MPDU_STATUS_SEC_MASK) ==
475 				IWL_RX_MPDU_STATUS_SEC_WEP)
476 			*crypt_len = IEEE80211_WEP_IV_LEN;
477 
478 		if (pkt_flags & FH_RSCSR_RADA_EN) {
479 			stats->flag |= RX_FLAG_ICV_STRIPPED;
480 			if (mvm->trans->mac_cfg->gen2)
481 				stats->flag |= RX_FLAG_MMIC_STRIPPED;
482 		}
483 
484 		return 0;
485 	case IWL_RX_MPDU_STATUS_SEC_EXT_ENC:
486 		if (!(status & IWL_RX_MPDU_STATUS_MIC_OK))
487 			return -1;
488 		stats->flag |= RX_FLAG_DECRYPTED;
489 		return 0;
490 	case RX_MPDU_RES_STATUS_SEC_CMAC_GMAC_ENC:
491 		break;
492 	default:
493 		/*
494 		 * Sometimes we can get frames that were not decrypted
495 		 * because the firmware didn't have the keys yet. This can
496 		 * happen after connection where we can get multicast frames
497 		 * before the GTK is installed.
498 		 * Silently drop those frames.
499 		 * Also drop un-decrypted frames in monitor mode.
500 		 */
501 		if (!is_multicast_ether_addr(hdr->addr1) &&
502 		    !mvm->monitor_on && net_ratelimit())
503 			IWL_WARN(mvm, "Unhandled alg: 0x%x\n", status);
504 	}
505 
506 	return 0;
507 }
508 
iwl_mvm_rx_csum(struct iwl_mvm * mvm,struct ieee80211_sta * sta,struct sk_buff * skb,struct iwl_rx_packet * pkt)509 static void iwl_mvm_rx_csum(struct iwl_mvm *mvm,
510 			    struct ieee80211_sta *sta,
511 			    struct sk_buff *skb,
512 			    struct iwl_rx_packet *pkt)
513 {
514 	struct iwl_rx_mpdu_desc *desc = (void *)pkt->data;
515 
516 	if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) {
517 		if (pkt->len_n_flags & cpu_to_le32(FH_RSCSR_RPA_EN)) {
518 			u16 hwsum = be16_to_cpu(desc->v3.raw_xsum);
519 
520 			skb->ip_summed = CHECKSUM_COMPLETE;
521 			skb->csum = csum_unfold(~(__force __sum16)hwsum);
522 		}
523 	} else {
524 		struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
525 		struct iwl_mvm_vif *mvmvif;
526 		u16 flags = le16_to_cpu(desc->l3l4_flags);
527 		u8 l3_prot = (u8)((flags & IWL_RX_L3L4_L3_PROTO_MASK) >>
528 				  IWL_RX_L3_PROTO_POS);
529 
530 		mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
531 
532 		if (mvmvif->features & NETIF_F_RXCSUM &&
533 		    flags & IWL_RX_L3L4_TCP_UDP_CSUM_OK &&
534 		    (flags & IWL_RX_L3L4_IP_HDR_CSUM_OK ||
535 		     l3_prot == IWL_RX_L3_TYPE_IPV6 ||
536 		     l3_prot == IWL_RX_L3_TYPE_IPV6_FRAG))
537 			skb->ip_summed = CHECKSUM_UNNECESSARY;
538 	}
539 }
540 
541 /*
542  * returns true if a packet is a duplicate or invalid tid and should be dropped.
543  * Updates AMSDU PN tracking info
544  */
iwl_mvm_is_dup(struct ieee80211_sta * sta,int queue,struct ieee80211_rx_status * rx_status,struct ieee80211_hdr * hdr,struct iwl_rx_mpdu_desc * desc)545 static bool iwl_mvm_is_dup(struct ieee80211_sta *sta, int queue,
546 			   struct ieee80211_rx_status *rx_status,
547 			   struct ieee80211_hdr *hdr,
548 			   struct iwl_rx_mpdu_desc *desc)
549 {
550 	struct iwl_mvm_sta *mvm_sta;
551 	struct iwl_mvm_rxq_dup_data *dup_data;
552 	u8 tid, sub_frame_idx;
553 
554 	if (WARN_ON(IS_ERR_OR_NULL(sta)))
555 		return false;
556 
557 	mvm_sta = iwl_mvm_sta_from_mac80211(sta);
558 
559 	if (WARN_ON_ONCE(!mvm_sta->dup_data))
560 		return false;
561 
562 	dup_data = &mvm_sta->dup_data[queue];
563 
564 	/*
565 	 * Drop duplicate 802.11 retransmissions
566 	 * (IEEE 802.11-2012: 9.3.2.10 "Duplicate detection and recovery")
567 	 */
568 	if (ieee80211_is_ctl(hdr->frame_control) ||
569 	    ieee80211_is_any_nullfunc(hdr->frame_control) ||
570 	    is_multicast_ether_addr(hdr->addr1))
571 		return false;
572 
573 	if (ieee80211_is_data_qos(hdr->frame_control)) {
574 		/* frame has qos control */
575 		tid = ieee80211_get_tid(hdr);
576 		if (tid >= IWL_MAX_TID_COUNT)
577 			return true;
578 	} else {
579 		tid = IWL_MAX_TID_COUNT;
580 	}
581 
582 	/* If this wasn't a part of an A-MSDU the sub-frame index will be 0 */
583 	sub_frame_idx = desc->amsdu_info &
584 		IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK;
585 
586 	if (unlikely(ieee80211_has_retry(hdr->frame_control) &&
587 		     dup_data->last_seq[tid] == hdr->seq_ctrl &&
588 		     dup_data->last_sub_frame[tid] >= sub_frame_idx))
589 		return true;
590 
591 	/* Allow same PN as the first subframe for following sub frames */
592 	if (dup_data->last_seq[tid] == hdr->seq_ctrl &&
593 	    sub_frame_idx > dup_data->last_sub_frame[tid] &&
594 	    desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU)
595 		rx_status->flag |= RX_FLAG_ALLOW_SAME_PN;
596 
597 	dup_data->last_seq[tid] = hdr->seq_ctrl;
598 	dup_data->last_sub_frame[tid] = sub_frame_idx;
599 
600 	rx_status->flag |= RX_FLAG_DUP_VALIDATED;
601 
602 	return false;
603 }
604 
iwl_mvm_release_frames(struct iwl_mvm * mvm,struct ieee80211_sta * sta,struct napi_struct * napi,struct iwl_mvm_baid_data * baid_data,struct iwl_mvm_reorder_buffer * reorder_buf,u16 nssn)605 static void iwl_mvm_release_frames(struct iwl_mvm *mvm,
606 				   struct ieee80211_sta *sta,
607 				   struct napi_struct *napi,
608 				   struct iwl_mvm_baid_data *baid_data,
609 				   struct iwl_mvm_reorder_buffer *reorder_buf,
610 				   u16 nssn)
611 {
612 	struct iwl_mvm_reorder_buf_entry *entries =
613 		&baid_data->entries[reorder_buf->queue *
614 				    baid_data->entries_per_queue];
615 	u16 ssn = reorder_buf->head_sn;
616 
617 	lockdep_assert_held(&reorder_buf->lock);
618 
619 	while (ieee80211_sn_less(ssn, nssn)) {
620 		int index = ssn % baid_data->buf_size;
621 		struct sk_buff_head *skb_list = &entries[index].frames;
622 		struct sk_buff *skb;
623 
624 		ssn = ieee80211_sn_inc(ssn);
625 
626 		/*
627 		 * Empty the list. Will have more than one frame for A-MSDU.
628 		 * Empty list is valid as well since nssn indicates frames were
629 		 * received.
630 		 */
631 		while ((skb = __skb_dequeue(skb_list))) {
632 			iwl_mvm_pass_packet_to_mac80211(mvm, napi, skb,
633 							reorder_buf->queue,
634 							sta);
635 			reorder_buf->num_stored--;
636 		}
637 	}
638 	reorder_buf->head_sn = nssn;
639 }
640 
iwl_mvm_del_ba(struct iwl_mvm * mvm,int queue,struct iwl_mvm_delba_data * data)641 static void iwl_mvm_del_ba(struct iwl_mvm *mvm, int queue,
642 			   struct iwl_mvm_delba_data *data)
643 {
644 	struct iwl_mvm_baid_data *ba_data;
645 	struct ieee80211_sta *sta;
646 	struct iwl_mvm_reorder_buffer *reorder_buf;
647 	u8 baid = data->baid;
648 	u32 sta_id;
649 
650 	if (WARN_ONCE(baid >= IWL_MAX_BAID, "invalid BAID: %x\n", baid))
651 		return;
652 
653 	rcu_read_lock();
654 
655 	ba_data = rcu_dereference(mvm->baid_map[baid]);
656 	if (WARN_ON_ONCE(!ba_data))
657 		goto out;
658 
659 	/* pick any STA ID to find the pointer */
660 	sta_id = ffs(ba_data->sta_mask) - 1;
661 	sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
662 	if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta)))
663 		goto out;
664 
665 	reorder_buf = &ba_data->reorder_buf[queue];
666 
667 	/* release all frames that are in the reorder buffer to the stack */
668 	spin_lock_bh(&reorder_buf->lock);
669 	iwl_mvm_release_frames(mvm, sta, NULL, ba_data, reorder_buf,
670 			       ieee80211_sn_add(reorder_buf->head_sn,
671 						ba_data->buf_size));
672 	spin_unlock_bh(&reorder_buf->lock);
673 
674 out:
675 	rcu_read_unlock();
676 }
677 
iwl_mvm_release_frames_from_notif(struct iwl_mvm * mvm,struct napi_struct * napi,u8 baid,u16 nssn,int queue)678 static void iwl_mvm_release_frames_from_notif(struct iwl_mvm *mvm,
679 					      struct napi_struct *napi,
680 					      u8 baid, u16 nssn, int queue)
681 {
682 	struct ieee80211_sta *sta;
683 	struct iwl_mvm_reorder_buffer *reorder_buf;
684 	struct iwl_mvm_baid_data *ba_data;
685 	u32 sta_id;
686 
687 	IWL_DEBUG_HT(mvm, "Frame release notification for BAID %u, NSSN %d\n",
688 		     baid, nssn);
689 
690 	if (IWL_FW_CHECK(mvm,
691 			 baid == IWL_RX_REORDER_DATA_INVALID_BAID ||
692 			 baid >= ARRAY_SIZE(mvm->baid_map),
693 			 "invalid BAID from FW: %d\n", baid))
694 		return;
695 
696 	rcu_read_lock();
697 
698 	ba_data = rcu_dereference(mvm->baid_map[baid]);
699 	if (!ba_data) {
700 		IWL_DEBUG_RX(mvm,
701 			     "Got valid BAID %d but not allocated, invalid frame release!\n",
702 			     baid);
703 		goto out;
704 	}
705 
706 	/* pick any STA ID to find the pointer */
707 	sta_id = ffs(ba_data->sta_mask) - 1;
708 	sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
709 	if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta)))
710 		goto out;
711 
712 	reorder_buf = &ba_data->reorder_buf[queue];
713 
714 	spin_lock_bh(&reorder_buf->lock);
715 	iwl_mvm_release_frames(mvm, sta, napi, ba_data,
716 			       reorder_buf, nssn);
717 	spin_unlock_bh(&reorder_buf->lock);
718 
719 out:
720 	rcu_read_unlock();
721 }
722 
iwl_mvm_rx_queue_notif(struct iwl_mvm * mvm,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb,int queue)723 void iwl_mvm_rx_queue_notif(struct iwl_mvm *mvm, struct napi_struct *napi,
724 			    struct iwl_rx_cmd_buffer *rxb, int queue)
725 {
726 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
727 	struct iwl_rxq_sync_notification *notif;
728 	struct iwl_mvm_internal_rxq_notif *internal_notif;
729 	u32 len = iwl_rx_packet_payload_len(pkt);
730 
731 	notif = (void *)pkt->data;
732 	internal_notif = (void *)notif->payload;
733 
734 	if (WARN_ONCE(len < sizeof(*notif) + sizeof(*internal_notif),
735 		      "invalid notification size %d (%d)",
736 		      len, (int)(sizeof(*notif) + sizeof(*internal_notif))))
737 		return;
738 	len -= sizeof(*notif) + sizeof(*internal_notif);
739 
740 	if (WARN_ONCE(internal_notif->sync &&
741 		      mvm->queue_sync_cookie != internal_notif->cookie,
742 		      "Received expired RX queue sync message (cookie %d but wanted %d, queue %d)\n",
743 		      internal_notif->cookie, mvm->queue_sync_cookie, queue))
744 		return;
745 
746 	switch (internal_notif->type) {
747 	case IWL_MVM_RXQ_EMPTY:
748 		WARN_ONCE(len, "invalid empty notification size %d", len);
749 		break;
750 	case IWL_MVM_RXQ_NOTIF_DEL_BA:
751 		if (WARN_ONCE(len != sizeof(struct iwl_mvm_delba_data),
752 			      "invalid delba notification size %d (%d)",
753 			      len, (int)sizeof(struct iwl_mvm_delba_data)))
754 			break;
755 		iwl_mvm_del_ba(mvm, queue, (void *)internal_notif->data);
756 		break;
757 	default:
758 		WARN_ONCE(1, "Invalid identifier %d", internal_notif->type);
759 	}
760 
761 	if (internal_notif->sync) {
762 		WARN_ONCE(!test_and_clear_bit(queue, &mvm->queue_sync_state),
763 			  "queue sync: queue %d responded a second time!\n",
764 			  queue);
765 		if (READ_ONCE(mvm->queue_sync_state) == 0)
766 			wake_up(&mvm->rx_sync_waitq);
767 	}
768 }
769 
770 /*
771  * Returns true if the MPDU was buffered\dropped, false if it should be passed
772  * to upper layer.
773  */
iwl_mvm_reorder(struct iwl_mvm * mvm,struct napi_struct * napi,int queue,struct ieee80211_sta * sta,struct sk_buff * skb,struct iwl_rx_mpdu_desc * desc)774 static bool iwl_mvm_reorder(struct iwl_mvm *mvm,
775 			    struct napi_struct *napi,
776 			    int queue,
777 			    struct ieee80211_sta *sta,
778 			    struct sk_buff *skb,
779 			    struct iwl_rx_mpdu_desc *desc)
780 {
781 	struct ieee80211_hdr *hdr = (void *)skb_mac_header(skb);
782 	struct iwl_mvm_baid_data *baid_data;
783 	struct iwl_mvm_reorder_buffer *buffer;
784 	u32 reorder = le32_to_cpu(desc->reorder_data);
785 	bool amsdu = desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU;
786 	bool last_subframe =
787 		desc->amsdu_info & IWL_RX_MPDU_AMSDU_LAST_SUBFRAME;
788 	u8 tid = ieee80211_get_tid(hdr);
789 	struct iwl_mvm_reorder_buf_entry *entries;
790 	u32 sta_mask;
791 	int index;
792 	u16 nssn, sn;
793 	u8 baid;
794 
795 	baid = (reorder & IWL_RX_MPDU_REORDER_BAID_MASK) >>
796 		IWL_RX_MPDU_REORDER_BAID_SHIFT;
797 
798 	if (mvm->trans->mac_cfg->device_family == IWL_DEVICE_FAMILY_9000)
799 		return false;
800 
801 	/*
802 	 * This also covers the case of receiving a Block Ack Request
803 	 * outside a BA session; we'll pass it to mac80211 and that
804 	 * then sends a delBA action frame.
805 	 * This also covers pure monitor mode, in which case we won't
806 	 * have any BA sessions.
807 	 */
808 	if (baid == IWL_RX_REORDER_DATA_INVALID_BAID)
809 		return false;
810 
811 	/* no sta yet */
812 	if (WARN_ONCE(IS_ERR_OR_NULL(sta),
813 		      "Got valid BAID without a valid station assigned\n"))
814 		return false;
815 
816 	/* not a data packet or a bar */
817 	if (!ieee80211_is_back_req(hdr->frame_control) &&
818 	    (!ieee80211_is_data_qos(hdr->frame_control) ||
819 	     is_multicast_ether_addr(hdr->addr1)))
820 		return false;
821 
822 	if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
823 		return false;
824 
825 	baid_data = rcu_dereference(mvm->baid_map[baid]);
826 	if (!baid_data) {
827 		IWL_DEBUG_RX(mvm,
828 			     "Got valid BAID but no baid allocated, bypass the re-ordering buffer. Baid %d reorder 0x%x\n",
829 			      baid, reorder);
830 		return false;
831 	}
832 
833 	sta_mask = iwl_mvm_sta_fw_id_mask(mvm, sta, -1);
834 
835 	if (IWL_FW_CHECK(mvm,
836 			 tid != baid_data->tid ||
837 			 !(sta_mask & baid_data->sta_mask),
838 			 "baid 0x%x is mapped to sta_mask:0x%x tid:%d, but was received for sta_mask:0x%x tid:%d\n",
839 			 baid, baid_data->sta_mask, baid_data->tid,
840 			 sta_mask, tid))
841 		return false;
842 
843 	nssn = reorder & IWL_RX_MPDU_REORDER_NSSN_MASK;
844 	sn = (reorder & IWL_RX_MPDU_REORDER_SN_MASK) >>
845 		IWL_RX_MPDU_REORDER_SN_SHIFT;
846 
847 	buffer = &baid_data->reorder_buf[queue];
848 	entries = &baid_data->entries[queue * baid_data->entries_per_queue];
849 
850 	spin_lock_bh(&buffer->lock);
851 
852 	if (!buffer->valid) {
853 		if (reorder & IWL_RX_MPDU_REORDER_BA_OLD_SN) {
854 			spin_unlock_bh(&buffer->lock);
855 			return false;
856 		}
857 		buffer->valid = true;
858 	}
859 
860 	/* drop any duplicated packets */
861 	if (desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_DUPLICATE))
862 		goto drop;
863 
864 	/* drop any oudated packets */
865 	if (reorder & IWL_RX_MPDU_REORDER_BA_OLD_SN)
866 		goto drop;
867 
868 	/* release immediately if allowed by nssn and no stored frames */
869 	if (!buffer->num_stored && ieee80211_sn_less(sn, nssn)) {
870 		if (!amsdu || last_subframe)
871 			buffer->head_sn = nssn;
872 
873 		spin_unlock_bh(&buffer->lock);
874 		return false;
875 	}
876 
877 	/*
878 	 * release immediately if there are no stored frames, and the sn is
879 	 * equal to the head.
880 	 * This can happen due to reorder timer, where NSSN is behind head_sn.
881 	 * When we released everything, and we got the next frame in the
882 	 * sequence, according to the NSSN we can't release immediately,
883 	 * while technically there is no hole and we can move forward.
884 	 */
885 	if (!buffer->num_stored && sn == buffer->head_sn) {
886 		if (!amsdu || last_subframe)
887 			buffer->head_sn = ieee80211_sn_inc(buffer->head_sn);
888 
889 		spin_unlock_bh(&buffer->lock);
890 		return false;
891 	}
892 
893 	/* put in reorder buffer */
894 	index = sn % baid_data->buf_size;
895 	__skb_queue_tail(&entries[index].frames, skb);
896 	buffer->num_stored++;
897 
898 	/*
899 	 * We cannot trust NSSN for AMSDU sub-frames that are not the last.
900 	 * The reason is that NSSN advances on the first sub-frame, and may
901 	 * cause the reorder buffer to advance before all the sub-frames arrive.
902 	 * Example: reorder buffer contains SN 0 & 2, and we receive AMSDU with
903 	 * SN 1. NSSN for first sub frame will be 3 with the result of driver
904 	 * releasing SN 0,1, 2. When sub-frame 1 arrives - reorder buffer is
905 	 * already ahead and it will be dropped.
906 	 * If the last sub-frame is not on this queue - we will get frame
907 	 * release notification with up to date NSSN.
908 	 * If this is the first frame that is stored in the buffer, the head_sn
909 	 * may be outdated. Update it based on the last NSSN to make sure it
910 	 * will be released when the frame release notification arrives.
911 	 */
912 	if (!amsdu || last_subframe)
913 		iwl_mvm_release_frames(mvm, sta, napi, baid_data,
914 				       buffer, nssn);
915 	else if (buffer->num_stored == 1)
916 		buffer->head_sn = nssn;
917 
918 	spin_unlock_bh(&buffer->lock);
919 	return true;
920 
921 drop:
922 	kfree_skb(skb);
923 	spin_unlock_bh(&buffer->lock);
924 	return true;
925 }
926 
iwl_mvm_agg_rx_received(struct iwl_mvm * mvm,u32 reorder_data,u8 baid)927 static void iwl_mvm_agg_rx_received(struct iwl_mvm *mvm,
928 				    u32 reorder_data, u8 baid)
929 {
930 	unsigned long now = jiffies;
931 	unsigned long timeout;
932 	struct iwl_mvm_baid_data *data;
933 
934 	rcu_read_lock();
935 
936 	data = rcu_dereference(mvm->baid_map[baid]);
937 	if (!data) {
938 		IWL_DEBUG_RX(mvm,
939 			     "Got valid BAID but no baid allocated, bypass the re-ordering buffer. Baid %d reorder 0x%x\n",
940 			      baid, reorder_data);
941 		goto out;
942 	}
943 
944 	if (!data->timeout)
945 		goto out;
946 
947 	timeout = data->timeout;
948 	/*
949 	 * Do not update last rx all the time to avoid cache bouncing
950 	 * between the rx queues.
951 	 * Update it every timeout. Worst case is the session will
952 	 * expire after ~ 2 * timeout, which doesn't matter that much.
953 	 */
954 	if (time_before(data->last_rx + TU_TO_JIFFIES(timeout), now))
955 		/* Update is atomic */
956 		data->last_rx = now;
957 
958 out:
959 	rcu_read_unlock();
960 }
961 
iwl_mvm_flip_address(u8 * addr)962 static void iwl_mvm_flip_address(u8 *addr)
963 {
964 	int i;
965 	u8 mac_addr[ETH_ALEN];
966 
967 	for (i = 0; i < ETH_ALEN; i++)
968 		mac_addr[i] = addr[ETH_ALEN - i - 1];
969 	ether_addr_copy(addr, mac_addr);
970 }
971 
972 struct iwl_mvm_rx_phy_data {
973 	enum iwl_rx_phy_info_type info_type;
974 	__le32 d0, d1, d2, d3, eht_d4, d5;
975 	__le16 d4;
976 	bool with_data;
977 	bool first_subframe;
978 	__le32 rx_vec[4];
979 
980 	u32 rate_n_flags;
981 	u32 gp2_on_air_rise;
982 	u16 phy_info;
983 	u8 energy_a, energy_b;
984 	u8 channel;
985 };
986 
iwl_mvm_decode_he_mu_ext(struct iwl_mvm * mvm,struct iwl_mvm_rx_phy_data * phy_data,struct ieee80211_radiotap_he_mu * he_mu)987 static void iwl_mvm_decode_he_mu_ext(struct iwl_mvm *mvm,
988 				     struct iwl_mvm_rx_phy_data *phy_data,
989 				     struct ieee80211_radiotap_he_mu *he_mu)
990 {
991 	u32 phy_data2 = le32_to_cpu(phy_data->d2);
992 	u32 phy_data3 = le32_to_cpu(phy_data->d3);
993 	u16 phy_data4 = le16_to_cpu(phy_data->d4);
994 	u32 rate_n_flags = phy_data->rate_n_flags;
995 
996 	if (FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH1_CRC_OK, phy_data4)) {
997 		he_mu->flags1 |=
998 			cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_RU_KNOWN |
999 				    IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_CTR_26T_RU_KNOWN);
1000 
1001 		he_mu->flags1 |=
1002 			le16_encode_bits(FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH1_CTR_RU,
1003 						   phy_data4),
1004 					 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_CTR_26T_RU);
1005 
1006 		he_mu->ru_ch1[0] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH1_RU0,
1007 					     phy_data2);
1008 		he_mu->ru_ch1[1] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH1_RU1,
1009 					     phy_data3);
1010 		he_mu->ru_ch1[2] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH1_RU2,
1011 					     phy_data2);
1012 		he_mu->ru_ch1[3] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH1_RU3,
1013 					     phy_data3);
1014 	}
1015 
1016 	if (FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH2_CRC_OK, phy_data4) &&
1017 	    (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK_V1) != RATE_MCS_CHAN_WIDTH_20) {
1018 		he_mu->flags1 |=
1019 			cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH2_RU_KNOWN |
1020 				    IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH2_CTR_26T_RU_KNOWN);
1021 
1022 		he_mu->flags2 |=
1023 			le16_encode_bits(FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH2_CTR_RU,
1024 						   phy_data4),
1025 					 IEEE80211_RADIOTAP_HE_MU_FLAGS2_CH2_CTR_26T_RU);
1026 
1027 		he_mu->ru_ch2[0] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH2_RU0,
1028 					     phy_data2);
1029 		he_mu->ru_ch2[1] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH2_RU1,
1030 					     phy_data3);
1031 		he_mu->ru_ch2[2] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH2_RU2,
1032 					     phy_data2);
1033 		he_mu->ru_ch2[3] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH2_RU3,
1034 					     phy_data3);
1035 	}
1036 }
1037 
1038 static void
iwl_mvm_decode_he_phy_ru_alloc(struct iwl_mvm_rx_phy_data * phy_data,struct ieee80211_radiotap_he * he,struct ieee80211_radiotap_he_mu * he_mu,struct ieee80211_rx_status * rx_status)1039 iwl_mvm_decode_he_phy_ru_alloc(struct iwl_mvm_rx_phy_data *phy_data,
1040 			       struct ieee80211_radiotap_he *he,
1041 			       struct ieee80211_radiotap_he_mu *he_mu,
1042 			       struct ieee80211_rx_status *rx_status)
1043 {
1044 	/*
1045 	 * Unfortunately, we have to leave the mac80211 data
1046 	 * incorrect for the case that we receive an HE-MU
1047 	 * transmission and *don't* have the HE phy data (due
1048 	 * to the bits being used for TSF). This shouldn't
1049 	 * happen though as management frames where we need
1050 	 * the TSF/timers are not be transmitted in HE-MU.
1051 	 */
1052 	u8 ru = le32_get_bits(phy_data->d1, IWL_RX_PHY_DATA1_HE_RU_ALLOC_MASK);
1053 	u32 rate_n_flags = phy_data->rate_n_flags;
1054 	u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK;
1055 	u8 offs = 0;
1056 
1057 	rx_status->bw = RATE_INFO_BW_HE_RU;
1058 
1059 	he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN);
1060 
1061 	switch (ru) {
1062 	case 0 ... 36:
1063 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_26;
1064 		offs = ru;
1065 		break;
1066 	case 37 ... 52:
1067 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_52;
1068 		offs = ru - 37;
1069 		break;
1070 	case 53 ... 60:
1071 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106;
1072 		offs = ru - 53;
1073 		break;
1074 	case 61 ... 64:
1075 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_242;
1076 		offs = ru - 61;
1077 		break;
1078 	case 65 ... 66:
1079 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_484;
1080 		offs = ru - 65;
1081 		break;
1082 	case 67:
1083 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_996;
1084 		break;
1085 	case 68:
1086 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_2x996;
1087 		break;
1088 	}
1089 	he->data2 |= le16_encode_bits(offs,
1090 				      IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET);
1091 	he->data2 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_KNOWN |
1092 				 IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET_KNOWN);
1093 	if (phy_data->d1 & cpu_to_le32(IWL_RX_PHY_DATA1_HE_RU_ALLOC_SEC80))
1094 		he->data2 |=
1095 			cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_SEC);
1096 
1097 #define CHECK_BW(bw) \
1098 	BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_ ## bw ## MHZ != \
1099 		     RATE_MCS_CHAN_WIDTH_##bw >> RATE_MCS_CHAN_WIDTH_POS); \
1100 	BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA6_TB_PPDU_BW_ ## bw ## MHZ != \
1101 		     RATE_MCS_CHAN_WIDTH_##bw >> RATE_MCS_CHAN_WIDTH_POS)
1102 	CHECK_BW(20);
1103 	CHECK_BW(40);
1104 	CHECK_BW(80);
1105 	CHECK_BW(160);
1106 
1107 	if (he_mu)
1108 		he_mu->flags2 |=
1109 			le16_encode_bits(FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK,
1110 						   rate_n_flags),
1111 					 IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW);
1112 	else if (he_type == RATE_MCS_HE_TYPE_TRIG)
1113 		he->data6 |=
1114 			cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA6_TB_PPDU_BW_KNOWN) |
1115 			le16_encode_bits(FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK,
1116 						   rate_n_flags),
1117 					 IEEE80211_RADIOTAP_HE_DATA6_TB_PPDU_BW);
1118 }
1119 
iwl_mvm_decode_he_phy_data(struct iwl_mvm * mvm,struct iwl_mvm_rx_phy_data * phy_data,struct ieee80211_radiotap_he * he,struct ieee80211_radiotap_he_mu * he_mu,struct ieee80211_rx_status * rx_status,int queue)1120 static void iwl_mvm_decode_he_phy_data(struct iwl_mvm *mvm,
1121 				       struct iwl_mvm_rx_phy_data *phy_data,
1122 				       struct ieee80211_radiotap_he *he,
1123 				       struct ieee80211_radiotap_he_mu *he_mu,
1124 				       struct ieee80211_rx_status *rx_status,
1125 				       int queue)
1126 {
1127 	switch (phy_data->info_type) {
1128 	case IWL_RX_PHY_INFO_TYPE_NONE:
1129 	case IWL_RX_PHY_INFO_TYPE_CCK:
1130 	case IWL_RX_PHY_INFO_TYPE_OFDM_LGCY:
1131 	case IWL_RX_PHY_INFO_TYPE_HT:
1132 	case IWL_RX_PHY_INFO_TYPE_VHT_SU:
1133 	case IWL_RX_PHY_INFO_TYPE_VHT_MU:
1134 	case IWL_RX_PHY_INFO_TYPE_EHT_MU:
1135 	case IWL_RX_PHY_INFO_TYPE_EHT_TB:
1136 	case IWL_RX_PHY_INFO_TYPE_EHT_MU_EXT:
1137 	case IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT:
1138 		return;
1139 	case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:
1140 		he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE_KNOWN |
1141 					 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE2_KNOWN |
1142 					 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE3_KNOWN |
1143 					 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE4_KNOWN);
1144 		he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,
1145 							    IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE1),
1146 					      IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE1);
1147 		he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,
1148 							    IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE2),
1149 					      IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE2);
1150 		he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,
1151 							    IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE3),
1152 					      IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE3);
1153 		he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,
1154 							    IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE4),
1155 					      IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE4);
1156 		fallthrough;
1157 	case IWL_RX_PHY_INFO_TYPE_HE_SU:
1158 	case IWL_RX_PHY_INFO_TYPE_HE_MU:
1159 	case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
1160 	case IWL_RX_PHY_INFO_TYPE_HE_TB:
1161 		/* HE common */
1162 		he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_LDPC_XSYMSEG_KNOWN |
1163 					 IEEE80211_RADIOTAP_HE_DATA1_DOPPLER_KNOWN |
1164 					 IEEE80211_RADIOTAP_HE_DATA1_BSS_COLOR_KNOWN);
1165 		he->data2 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRE_FEC_PAD_KNOWN |
1166 					 IEEE80211_RADIOTAP_HE_DATA2_PE_DISAMBIG_KNOWN |
1167 					 IEEE80211_RADIOTAP_HE_DATA2_TXOP_KNOWN |
1168 					 IEEE80211_RADIOTAP_HE_DATA2_NUM_LTF_SYMS_KNOWN);
1169 		he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1170 							    IWL_RX_PHY_DATA0_HE_BSS_COLOR_MASK),
1171 					      IEEE80211_RADIOTAP_HE_DATA3_BSS_COLOR);
1172 		if (phy_data->info_type != IWL_RX_PHY_INFO_TYPE_HE_TB &&
1173 		    phy_data->info_type != IWL_RX_PHY_INFO_TYPE_HE_TB_EXT) {
1174 			he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_UL_DL_KNOWN);
1175 			he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1176 							    IWL_RX_PHY_DATA0_HE_UPLINK),
1177 						      IEEE80211_RADIOTAP_HE_DATA3_UL_DL);
1178 		}
1179 		he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1180 							    IWL_RX_PHY_DATA0_HE_LDPC_EXT_SYM),
1181 					      IEEE80211_RADIOTAP_HE_DATA3_LDPC_XSYMSEG);
1182 		he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1183 							    IWL_RX_PHY_DATA0_HE_PRE_FEC_PAD_MASK),
1184 					      IEEE80211_RADIOTAP_HE_DATA5_PRE_FEC_PAD);
1185 		he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1186 							    IWL_RX_PHY_DATA0_HE_PE_DISAMBIG),
1187 					      IEEE80211_RADIOTAP_HE_DATA5_PE_DISAMBIG);
1188 		he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d1,
1189 							    IWL_RX_PHY_DATA1_HE_LTF_NUM_MASK),
1190 					      IEEE80211_RADIOTAP_HE_DATA5_NUM_LTF_SYMS);
1191 		he->data6 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1192 							    IWL_RX_PHY_DATA0_HE_TXOP_DUR_MASK),
1193 					      IEEE80211_RADIOTAP_HE_DATA6_TXOP);
1194 		he->data6 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1195 							    IWL_RX_PHY_DATA0_HE_DOPPLER),
1196 					      IEEE80211_RADIOTAP_HE_DATA6_DOPPLER);
1197 		break;
1198 	}
1199 
1200 	switch (phy_data->info_type) {
1201 	case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
1202 	case IWL_RX_PHY_INFO_TYPE_HE_MU:
1203 	case IWL_RX_PHY_INFO_TYPE_HE_SU:
1204 		he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE_KNOWN);
1205 		he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1206 							    IWL_RX_PHY_DATA0_HE_SPATIAL_REUSE_MASK),
1207 					      IEEE80211_RADIOTAP_HE_DATA4_SU_MU_SPTL_REUSE);
1208 		break;
1209 	default:
1210 		/* nothing here */
1211 		break;
1212 	}
1213 
1214 	switch (phy_data->info_type) {
1215 	case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
1216 		he_mu->flags1 |=
1217 			le16_encode_bits(le16_get_bits(phy_data->d4,
1218 						       IWL_RX_PHY_DATA4_HE_MU_EXT_SIGB_DCM),
1219 					 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM);
1220 		he_mu->flags1 |=
1221 			le16_encode_bits(le16_get_bits(phy_data->d4,
1222 						       IWL_RX_PHY_DATA4_HE_MU_EXT_SIGB_MCS_MASK),
1223 					 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS);
1224 		he_mu->flags2 |=
1225 			le16_encode_bits(le16_get_bits(phy_data->d4,
1226 						       IWL_RX_PHY_DATA4_HE_MU_EXT_PREAMBLE_PUNC_TYPE_MASK),
1227 					 IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW);
1228 		iwl_mvm_decode_he_mu_ext(mvm, phy_data, he_mu);
1229 		fallthrough;
1230 	case IWL_RX_PHY_INFO_TYPE_HE_MU:
1231 		he_mu->flags2 |=
1232 			le16_encode_bits(le32_get_bits(phy_data->d1,
1233 						       IWL_RX_PHY_DATA1_HE_MU_SIBG_SYM_OR_USER_NUM_MASK),
1234 					 IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_SYMS_USERS);
1235 		he_mu->flags2 |=
1236 			le16_encode_bits(le32_get_bits(phy_data->d1,
1237 						       IWL_RX_PHY_DATA1_HE_MU_SIGB_COMPRESSION),
1238 					 IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_COMP);
1239 		fallthrough;
1240 	case IWL_RX_PHY_INFO_TYPE_HE_TB:
1241 	case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:
1242 		iwl_mvm_decode_he_phy_ru_alloc(phy_data, he, he_mu, rx_status);
1243 		break;
1244 	case IWL_RX_PHY_INFO_TYPE_HE_SU:
1245 		he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BEAM_CHANGE_KNOWN);
1246 		he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1247 							    IWL_RX_PHY_DATA0_HE_BEAM_CHNG),
1248 					      IEEE80211_RADIOTAP_HE_DATA3_BEAM_CHANGE);
1249 		break;
1250 	default:
1251 		/* nothing */
1252 		break;
1253 	}
1254 }
1255 
1256 #define LE32_DEC_ENC(value, dec_bits, enc_bits) \
1257 	le32_encode_bits(le32_get_bits(value, dec_bits), enc_bits)
1258 
1259 #define IWL_MVM_ENC_USIG_VALUE_MASK(usig, in_value, dec_bits, enc_bits) do { \
1260 	typeof(enc_bits) _enc_bits = enc_bits; \
1261 	typeof(usig) _usig = usig; \
1262 	(_usig)->mask |= cpu_to_le32(_enc_bits); \
1263 	(_usig)->value |= LE32_DEC_ENC(in_value, dec_bits, _enc_bits); \
1264 } while (0)
1265 
1266 #define __IWL_MVM_ENC_EHT_RU(rt_data, rt_ru, fw_data, fw_ru) \
1267 	eht->data[(rt_data)] |= \
1268 		(cpu_to_le32 \
1269 		 (IEEE80211_RADIOTAP_EHT_DATA ## rt_data ## _RU_ALLOC_CC_ ## rt_ru ## _KNOWN) | \
1270 		 LE32_DEC_ENC(data ## fw_data, \
1271 			      IWL_RX_PHY_DATA ## fw_data ## _EHT_MU_EXT_RU_ALLOC_ ## fw_ru, \
1272 			      IEEE80211_RADIOTAP_EHT_DATA ## rt_data ## _RU_ALLOC_CC_ ## rt_ru))
1273 
1274 #define _IWL_MVM_ENC_EHT_RU(rt_data, rt_ru, fw_data, fw_ru)	\
1275 	__IWL_MVM_ENC_EHT_RU(rt_data, rt_ru, fw_data, fw_ru)
1276 
1277 #define IEEE80211_RADIOTAP_RU_DATA_1_1_1	1
1278 #define IEEE80211_RADIOTAP_RU_DATA_2_1_1	2
1279 #define IEEE80211_RADIOTAP_RU_DATA_1_1_2	2
1280 #define IEEE80211_RADIOTAP_RU_DATA_2_1_2	2
1281 #define IEEE80211_RADIOTAP_RU_DATA_1_2_1	3
1282 #define IEEE80211_RADIOTAP_RU_DATA_2_2_1	3
1283 #define IEEE80211_RADIOTAP_RU_DATA_1_2_2	3
1284 #define IEEE80211_RADIOTAP_RU_DATA_2_2_2	4
1285 
1286 #define IWL_RX_RU_DATA_A1			2
1287 #define IWL_RX_RU_DATA_A2			2
1288 #define IWL_RX_RU_DATA_B1			2
1289 #define IWL_RX_RU_DATA_B2			4
1290 #define IWL_RX_RU_DATA_C1			3
1291 #define IWL_RX_RU_DATA_C2			3
1292 #define IWL_RX_RU_DATA_D1			4
1293 #define IWL_RX_RU_DATA_D2			4
1294 
1295 #define IWL_MVM_ENC_EHT_RU(rt_ru, fw_ru)				\
1296 	_IWL_MVM_ENC_EHT_RU(IEEE80211_RADIOTAP_RU_DATA_ ## rt_ru,	\
1297 			    rt_ru,					\
1298 			    IWL_RX_RU_DATA_ ## fw_ru,			\
1299 			    fw_ru)
1300 
iwl_mvm_decode_eht_ext_mu(struct iwl_mvm * mvm,struct iwl_mvm_rx_phy_data * phy_data,struct ieee80211_rx_status * rx_status,struct ieee80211_radiotap_eht * eht,struct ieee80211_radiotap_eht_usig * usig)1301 static void iwl_mvm_decode_eht_ext_mu(struct iwl_mvm *mvm,
1302 				      struct iwl_mvm_rx_phy_data *phy_data,
1303 				      struct ieee80211_rx_status *rx_status,
1304 				      struct ieee80211_radiotap_eht *eht,
1305 				      struct ieee80211_radiotap_eht_usig *usig)
1306 {
1307 	if (phy_data->with_data) {
1308 		__le32 data1 = phy_data->d1;
1309 		__le32 data2 = phy_data->d2;
1310 		__le32 data3 = phy_data->d3;
1311 		__le32 data4 = phy_data->eht_d4;
1312 		__le32 data5 = phy_data->d5;
1313 		u32 phy_bw = phy_data->rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK;
1314 
1315 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5,
1316 					    IWL_RX_PHY_DATA5_EHT_TYPE_AND_COMP,
1317 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B0_B1_PPDU_TYPE);
1318 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5,
1319 					    IWL_RX_PHY_DATA5_EHT_MU_PUNC_CH_CODE,
1320 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B3_B7_PUNCTURED_INFO);
1321 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, data4,
1322 					    IWL_RX_PHY_DATA4_EHT_MU_EXT_SIGB_MCS,
1323 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B9_B10_SIG_MCS);
1324 		IWL_MVM_ENC_USIG_VALUE_MASK
1325 			(usig, data1, IWL_RX_PHY_DATA1_EHT_MU_NUM_SIG_SYM_USIGA2,
1326 			 IEEE80211_RADIOTAP_EHT_USIG2_MU_B11_B15_EHT_SIG_SYMBOLS);
1327 
1328 		eht->user_info[0] |=
1329 			cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_STA_ID_KNOWN) |
1330 			LE32_DEC_ENC(data5, IWL_RX_PHY_DATA5_EHT_MU_STA_ID_USR,
1331 				     IEEE80211_RADIOTAP_EHT_USER_INFO_STA_ID);
1332 
1333 		eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_NR_NON_OFDMA_USERS_M);
1334 		eht->data[7] |= LE32_DEC_ENC
1335 			(data5, IWL_RX_PHY_DATA5_EHT_MU_NUM_USR_NON_OFDMA,
1336 			 IEEE80211_RADIOTAP_EHT_DATA7_NUM_OF_NON_OFDMA_USERS);
1337 
1338 		/*
1339 		 * Hardware labels the content channels/RU allocation values
1340 		 * as follows:
1341 		 *           Content Channel 1		Content Channel 2
1342 		 *   20 MHz: A1
1343 		 *   40 MHz: A1				B1
1344 		 *   80 MHz: A1 C1			B1 D1
1345 		 *  160 MHz: A1 C1 A2 C2		B1 D1 B2 D2
1346 		 *  320 MHz: A1 C1 A2 C2 A3 C3 A4 C4	B1 D1 B2 D2 B3 D3 B4 D4
1347 		 *
1348 		 * However firmware can only give us A1-D2, so the higher
1349 		 * frequencies are missing.
1350 		 */
1351 
1352 		switch (phy_bw) {
1353 		case RATE_MCS_CHAN_WIDTH_320:
1354 			/* additional values are missing in RX metadata */
1355 		case RATE_MCS_CHAN_WIDTH_160:
1356 			/* content channel 1 */
1357 			IWL_MVM_ENC_EHT_RU(1_2_1, A2);
1358 			IWL_MVM_ENC_EHT_RU(1_2_2, C2);
1359 			/* content channel 2 */
1360 			IWL_MVM_ENC_EHT_RU(2_2_1, B2);
1361 			IWL_MVM_ENC_EHT_RU(2_2_2, D2);
1362 			fallthrough;
1363 		case RATE_MCS_CHAN_WIDTH_80:
1364 			/* content channel 1 */
1365 			IWL_MVM_ENC_EHT_RU(1_1_2, C1);
1366 			/* content channel 2 */
1367 			IWL_MVM_ENC_EHT_RU(2_1_2, D1);
1368 			fallthrough;
1369 		case RATE_MCS_CHAN_WIDTH_40:
1370 			/* content channel 2 */
1371 			IWL_MVM_ENC_EHT_RU(2_1_1, B1);
1372 			fallthrough;
1373 		case RATE_MCS_CHAN_WIDTH_20:
1374 			IWL_MVM_ENC_EHT_RU(1_1_1, A1);
1375 			break;
1376 		}
1377 	} else {
1378 		__le32 usig_a1 = phy_data->rx_vec[0];
1379 		__le32 usig_a2 = phy_data->rx_vec[1];
1380 
1381 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a1,
1382 					    IWL_RX_USIG_A1_DISREGARD,
1383 					    IEEE80211_RADIOTAP_EHT_USIG1_MU_B20_B24_DISREGARD);
1384 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a1,
1385 					    IWL_RX_USIG_A1_VALIDATE,
1386 					    IEEE80211_RADIOTAP_EHT_USIG1_MU_B25_VALIDATE);
1387 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1388 					    IWL_RX_USIG_A2_EHT_PPDU_TYPE,
1389 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B0_B1_PPDU_TYPE);
1390 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1391 					    IWL_RX_USIG_A2_EHT_USIG2_VALIDATE_B2,
1392 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B2_VALIDATE);
1393 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1394 					    IWL_RX_USIG_A2_EHT_PUNC_CHANNEL,
1395 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B3_B7_PUNCTURED_INFO);
1396 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1397 					    IWL_RX_USIG_A2_EHT_USIG2_VALIDATE_B8,
1398 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B8_VALIDATE);
1399 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1400 					    IWL_RX_USIG_A2_EHT_SIG_MCS,
1401 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B9_B10_SIG_MCS);
1402 		IWL_MVM_ENC_USIG_VALUE_MASK
1403 			(usig, usig_a2, IWL_RX_USIG_A2_EHT_SIG_SYM_NUM,
1404 			 IEEE80211_RADIOTAP_EHT_USIG2_MU_B11_B15_EHT_SIG_SYMBOLS);
1405 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1406 					    IWL_RX_USIG_A2_EHT_CRC_OK,
1407 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B16_B19_CRC);
1408 	}
1409 }
1410 
iwl_mvm_decode_eht_ext_tb(struct iwl_mvm * mvm,struct iwl_mvm_rx_phy_data * phy_data,struct ieee80211_rx_status * rx_status,struct ieee80211_radiotap_eht * eht,struct ieee80211_radiotap_eht_usig * usig)1411 static void iwl_mvm_decode_eht_ext_tb(struct iwl_mvm *mvm,
1412 				      struct iwl_mvm_rx_phy_data *phy_data,
1413 				      struct ieee80211_rx_status *rx_status,
1414 				      struct ieee80211_radiotap_eht *eht,
1415 				      struct ieee80211_radiotap_eht_usig *usig)
1416 {
1417 	if (phy_data->with_data) {
1418 		__le32 data5 = phy_data->d5;
1419 
1420 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5,
1421 					    IWL_RX_PHY_DATA5_EHT_TYPE_AND_COMP,
1422 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B0_B1_PPDU_TYPE);
1423 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5,
1424 					    IWL_RX_PHY_DATA5_EHT_TB_SPATIAL_REUSE1,
1425 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B3_B6_SPATIAL_REUSE_1);
1426 
1427 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5,
1428 					    IWL_RX_PHY_DATA5_EHT_TB_SPATIAL_REUSE2,
1429 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B7_B10_SPATIAL_REUSE_2);
1430 	} else {
1431 		__le32 usig_a1 = phy_data->rx_vec[0];
1432 		__le32 usig_a2 = phy_data->rx_vec[1];
1433 
1434 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a1,
1435 					    IWL_RX_USIG_A1_DISREGARD,
1436 					    IEEE80211_RADIOTAP_EHT_USIG1_TB_B20_B25_DISREGARD);
1437 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1438 					    IWL_RX_USIG_A2_EHT_PPDU_TYPE,
1439 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B0_B1_PPDU_TYPE);
1440 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1441 					    IWL_RX_USIG_A2_EHT_USIG2_VALIDATE_B2,
1442 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B2_VALIDATE);
1443 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1444 					    IWL_RX_USIG_A2_EHT_TRIG_SPATIAL_REUSE_1,
1445 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B3_B6_SPATIAL_REUSE_1);
1446 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1447 					    IWL_RX_USIG_A2_EHT_TRIG_SPATIAL_REUSE_2,
1448 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B7_B10_SPATIAL_REUSE_2);
1449 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1450 					    IWL_RX_USIG_A2_EHT_TRIG_USIG2_DISREGARD,
1451 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B11_B15_DISREGARD);
1452 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1453 					    IWL_RX_USIG_A2_EHT_CRC_OK,
1454 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B16_B19_CRC);
1455 	}
1456 }
1457 
iwl_mvm_decode_eht_ru(struct iwl_mvm * mvm,struct ieee80211_rx_status * rx_status,struct ieee80211_radiotap_eht * eht)1458 static void iwl_mvm_decode_eht_ru(struct iwl_mvm *mvm,
1459 				  struct ieee80211_rx_status *rx_status,
1460 				  struct ieee80211_radiotap_eht *eht)
1461 {
1462 	u32 ru = le32_get_bits(eht->data[8],
1463 			       IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_B7_B1);
1464 	enum nl80211_eht_ru_alloc nl_ru;
1465 
1466 	/* Using D1.5 Table 9-53a - Encoding of PS160 and RU Allocation subfields
1467 	 * in an EHT variant User Info field
1468 	 */
1469 
1470 	switch (ru) {
1471 	case 0 ... 36:
1472 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_26;
1473 		break;
1474 	case 37 ... 52:
1475 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_52;
1476 		break;
1477 	case 53 ... 60:
1478 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_106;
1479 		break;
1480 	case 61 ... 64:
1481 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_242;
1482 		break;
1483 	case 65 ... 66:
1484 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_484;
1485 		break;
1486 	case 67:
1487 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_996;
1488 		break;
1489 	case 68:
1490 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_2x996;
1491 		break;
1492 	case 69:
1493 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_4x996;
1494 		break;
1495 	case 70 ... 81:
1496 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_52P26;
1497 		break;
1498 	case 82 ... 89:
1499 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_106P26;
1500 		break;
1501 	case 90 ... 93:
1502 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_484P242;
1503 		break;
1504 	case 94 ... 95:
1505 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_996P484;
1506 		break;
1507 	case 96 ... 99:
1508 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_996P484P242;
1509 		break;
1510 	case 100 ... 103:
1511 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_2x996P484;
1512 		break;
1513 	case 104:
1514 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_3x996;
1515 		break;
1516 	case 105 ... 106:
1517 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_3x996P484;
1518 		break;
1519 	default:
1520 		return;
1521 	}
1522 
1523 	rx_status->bw = RATE_INFO_BW_EHT_RU;
1524 	rx_status->eht.ru = nl_ru;
1525 }
1526 
iwl_mvm_decode_eht_phy_data(struct iwl_mvm * mvm,struct iwl_mvm_rx_phy_data * phy_data,struct ieee80211_rx_status * rx_status,struct ieee80211_radiotap_eht * eht,struct ieee80211_radiotap_eht_usig * usig)1527 static void iwl_mvm_decode_eht_phy_data(struct iwl_mvm *mvm,
1528 					struct iwl_mvm_rx_phy_data *phy_data,
1529 					struct ieee80211_rx_status *rx_status,
1530 					struct ieee80211_radiotap_eht *eht,
1531 					struct ieee80211_radiotap_eht_usig *usig)
1532 
1533 {
1534 	__le32 data0 = phy_data->d0;
1535 	__le32 data1 = phy_data->d1;
1536 	__le32 usig_a1 = phy_data->rx_vec[0];
1537 	u8 info_type = phy_data->info_type;
1538 
1539 	/* Not in EHT range */
1540 	if (info_type < IWL_RX_PHY_INFO_TYPE_EHT_MU ||
1541 	    info_type > IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT)
1542 		return;
1543 
1544 	usig->common |= cpu_to_le32
1545 		(IEEE80211_RADIOTAP_EHT_USIG_COMMON_UL_DL_KNOWN |
1546 		 IEEE80211_RADIOTAP_EHT_USIG_COMMON_BSS_COLOR_KNOWN);
1547 	if (phy_data->with_data) {
1548 		usig->common |= LE32_DEC_ENC(data0,
1549 					     IWL_RX_PHY_DATA0_EHT_UPLINK,
1550 					     IEEE80211_RADIOTAP_EHT_USIG_COMMON_UL_DL);
1551 		usig->common |= LE32_DEC_ENC(data0,
1552 					     IWL_RX_PHY_DATA0_EHT_BSS_COLOR_MASK,
1553 					     IEEE80211_RADIOTAP_EHT_USIG_COMMON_BSS_COLOR);
1554 	} else {
1555 		usig->common |= LE32_DEC_ENC(usig_a1,
1556 					     IWL_RX_USIG_A1_UL_FLAG,
1557 					     IEEE80211_RADIOTAP_EHT_USIG_COMMON_UL_DL);
1558 		usig->common |= LE32_DEC_ENC(usig_a1,
1559 					     IWL_RX_USIG_A1_BSS_COLOR,
1560 					     IEEE80211_RADIOTAP_EHT_USIG_COMMON_BSS_COLOR);
1561 	}
1562 
1563 	if (fw_has_capa(&mvm->fw->ucode_capa,
1564 			IWL_UCODE_TLV_CAPA_SNIFF_VALIDATE_SUPPORT)) {
1565 		usig->common |=
1566 			cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_VALIDATE_BITS_CHECKED);
1567 		usig->common |=
1568 			LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_VALIDATE,
1569 				     IEEE80211_RADIOTAP_EHT_USIG_COMMON_VALIDATE_BITS_OK);
1570 	}
1571 
1572 	eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_SPATIAL_REUSE);
1573 	eht->data[0] |= LE32_DEC_ENC(data0,
1574 				     IWL_RX_PHY_DATA0_ETH_SPATIAL_REUSE_MASK,
1575 				     IEEE80211_RADIOTAP_EHT_DATA0_SPATIAL_REUSE);
1576 
1577 	/* All RU allocating size/index is in TB format */
1578 	eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_RU_ALLOC_TB_FMT);
1579 	eht->data[8] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PS160,
1580 				     IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_PS_160);
1581 	eht->data[8] |= LE32_DEC_ENC(data1, IWL_RX_PHY_DATA1_EHT_RU_ALLOC_B0,
1582 				     IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_B0);
1583 	eht->data[8] |= LE32_DEC_ENC(data1, IWL_RX_PHY_DATA1_EHT_RU_ALLOC_B1_B7,
1584 				     IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_B7_B1);
1585 
1586 	iwl_mvm_decode_eht_ru(mvm, rx_status, eht);
1587 
1588 	/* We only get here in case of IWL_RX_MPDU_PHY_TSF_OVERLOAD is set
1589 	 * which is on only in case of monitor mode so no need to check monitor
1590 	 * mode
1591 	 */
1592 	eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_PRIMARY_80);
1593 	eht->data[1] |=
1594 		le32_encode_bits(mvm->monitor_p80,
1595 				 IEEE80211_RADIOTAP_EHT_DATA1_PRIMARY_80);
1596 
1597 	usig->common |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_TXOP_KNOWN);
1598 	if (phy_data->with_data)
1599 		usig->common |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_TXOP_DUR_MASK,
1600 					     IEEE80211_RADIOTAP_EHT_USIG_COMMON_TXOP);
1601 	else
1602 		usig->common |= LE32_DEC_ENC(usig_a1, IWL_RX_USIG_A1_TXOP_DURATION,
1603 					     IEEE80211_RADIOTAP_EHT_USIG_COMMON_TXOP);
1604 
1605 	eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_LDPC_EXTRA_SYM_OM);
1606 	eht->data[0] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_LDPC_EXT_SYM,
1607 				     IEEE80211_RADIOTAP_EHT_DATA0_LDPC_EXTRA_SYM_OM);
1608 
1609 	eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_PRE_PADD_FACOR_OM);
1610 	eht->data[0] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PRE_FEC_PAD_MASK,
1611 				    IEEE80211_RADIOTAP_EHT_DATA0_PRE_PADD_FACOR_OM);
1612 
1613 	eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_PE_DISAMBIGUITY_OM);
1614 	eht->data[0] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PE_DISAMBIG,
1615 				     IEEE80211_RADIOTAP_EHT_DATA0_PE_DISAMBIGUITY_OM);
1616 
1617 	/* TODO: what about IWL_RX_PHY_DATA0_EHT_BW320_SLOT */
1618 
1619 	if (!le32_get_bits(data0, IWL_RX_PHY_DATA0_EHT_SIGA_CRC_OK))
1620 		usig->common |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_BAD_USIG_CRC);
1621 
1622 	usig->common |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_PHY_VER_KNOWN);
1623 	usig->common |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PHY_VER,
1624 				     IEEE80211_RADIOTAP_EHT_USIG_COMMON_PHY_VER);
1625 
1626 	/*
1627 	 * TODO: what about TB - IWL_RX_PHY_DATA1_EHT_TB_PILOT_TYPE,
1628 	 *			 IWL_RX_PHY_DATA1_EHT_TB_LOW_SS
1629 	 */
1630 
1631 	eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_EHT_LTF);
1632 	eht->data[0] |= LE32_DEC_ENC(data1, IWL_RX_PHY_DATA1_EHT_SIG_LTF_NUM,
1633 				     IEEE80211_RADIOTAP_EHT_DATA0_EHT_LTF);
1634 
1635 	if (info_type == IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT ||
1636 	    info_type == IWL_RX_PHY_INFO_TYPE_EHT_TB)
1637 		iwl_mvm_decode_eht_ext_tb(mvm, phy_data, rx_status, eht, usig);
1638 
1639 	if (info_type == IWL_RX_PHY_INFO_TYPE_EHT_MU_EXT ||
1640 	    info_type == IWL_RX_PHY_INFO_TYPE_EHT_MU)
1641 		iwl_mvm_decode_eht_ext_mu(mvm, phy_data, rx_status, eht, usig);
1642 }
1643 
iwl_mvm_rx_eht(struct iwl_mvm * mvm,struct sk_buff * skb,struct iwl_mvm_rx_phy_data * phy_data,int queue)1644 static void iwl_mvm_rx_eht(struct iwl_mvm *mvm, struct sk_buff *skb,
1645 			   struct iwl_mvm_rx_phy_data *phy_data,
1646 			   int queue)
1647 {
1648 	struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
1649 
1650 	struct ieee80211_radiotap_eht *eht;
1651 	struct ieee80211_radiotap_eht_usig *usig;
1652 	size_t eht_len = sizeof(*eht);
1653 
1654 	u32 rate_n_flags = phy_data->rate_n_flags;
1655 	u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK;
1656 	/* EHT and HE have the same valus for LTF */
1657 	u8 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_UNKNOWN;
1658 	u16 phy_info = phy_data->phy_info;
1659 	u32 bw;
1660 
1661 	/* u32 for 1 user_info */
1662 	if (phy_data->with_data)
1663 		eht_len += sizeof(u32);
1664 
1665 	eht = iwl_mvm_radiotap_put_tlv(skb, IEEE80211_RADIOTAP_EHT, eht_len);
1666 
1667 	usig = iwl_mvm_radiotap_put_tlv(skb, IEEE80211_RADIOTAP_EHT_USIG,
1668 					sizeof(*usig));
1669 	rx_status->flag |= RX_FLAG_RADIOTAP_TLV_AT_END;
1670 	usig->common |=
1671 		cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_BW_KNOWN);
1672 
1673 	/* specific handling for 320MHz */
1674 	bw = FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK, rate_n_flags);
1675 	if (bw == RATE_MCS_CHAN_WIDTH_320_VAL)
1676 		bw += FIELD_GET(IWL_RX_PHY_DATA0_EHT_BW320_SLOT,
1677 				le32_to_cpu(phy_data->d0));
1678 
1679 	usig->common |= cpu_to_le32
1680 		(FIELD_PREP(IEEE80211_RADIOTAP_EHT_USIG_COMMON_BW, bw));
1681 
1682 	/* report the AMPDU-EOF bit on single frames */
1683 	if (!queue && !(phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
1684 		rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
1685 		rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
1686 		if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_EHT_DELIM_EOF))
1687 			rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;
1688 	}
1689 
1690 	/* update aggregation data for monitor sake on default queue */
1691 	if (!queue && (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) &&
1692 	    (phy_info & IWL_RX_MPDU_PHY_AMPDU) && phy_data->first_subframe) {
1693 		rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
1694 		if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_EHT_DELIM_EOF))
1695 			rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;
1696 	}
1697 
1698 	if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)
1699 		iwl_mvm_decode_eht_phy_data(mvm, phy_data, rx_status, eht, usig);
1700 
1701 #define CHECK_TYPE(F)							\
1702 	BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA1_FORMAT_ ## F !=	\
1703 		     (RATE_MCS_HE_TYPE_ ## F >> RATE_MCS_HE_TYPE_POS))
1704 
1705 	CHECK_TYPE(SU);
1706 	CHECK_TYPE(EXT_SU);
1707 	CHECK_TYPE(MU);
1708 	CHECK_TYPE(TRIG);
1709 
1710 	switch (FIELD_GET(RATE_MCS_HE_GI_LTF_MSK, rate_n_flags)) {
1711 	case 0:
1712 		if (he_type == RATE_MCS_HE_TYPE_TRIG) {
1713 			rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_1_6;
1714 			ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_1X;
1715 		} else {
1716 			rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_0_8;
1717 			ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;
1718 		}
1719 		break;
1720 	case 1:
1721 		rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_1_6;
1722 		ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;
1723 		break;
1724 	case 2:
1725 		ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
1726 		if (he_type == RATE_MCS_HE_TYPE_TRIG)
1727 			rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_3_2;
1728 		else
1729 			rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_0_8;
1730 		break;
1731 	case 3:
1732 		if (he_type != RATE_MCS_HE_TYPE_TRIG) {
1733 			ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
1734 			rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_3_2;
1735 		}
1736 		break;
1737 	default:
1738 		/* nothing here */
1739 		break;
1740 	}
1741 
1742 	if (ltf != IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_UNKNOWN) {
1743 		eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_GI);
1744 		eht->data[0] |= cpu_to_le32
1745 			(FIELD_PREP(IEEE80211_RADIOTAP_EHT_DATA0_LTF,
1746 				    ltf) |
1747 			 FIELD_PREP(IEEE80211_RADIOTAP_EHT_DATA0_GI,
1748 				    rx_status->eht.gi));
1749 	}
1750 
1751 
1752 	if (!phy_data->with_data) {
1753 		eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_NSS_S |
1754 					  IEEE80211_RADIOTAP_EHT_KNOWN_BEAMFORMED_S);
1755 		eht->data[7] |=
1756 			le32_encode_bits(le32_get_bits(phy_data->rx_vec[2],
1757 						       RX_NO_DATA_RX_VEC2_EHT_NSTS_MSK),
1758 					 IEEE80211_RADIOTAP_EHT_DATA7_NSS_S);
1759 		if (rate_n_flags & RATE_MCS_BF_MSK)
1760 			eht->data[7] |=
1761 				cpu_to_le32(IEEE80211_RADIOTAP_EHT_DATA7_BEAMFORMED_S);
1762 	} else {
1763 		eht->user_info[0] |=
1764 			cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_MCS_KNOWN |
1765 				    IEEE80211_RADIOTAP_EHT_USER_INFO_CODING_KNOWN |
1766 				    IEEE80211_RADIOTAP_EHT_USER_INFO_NSS_KNOWN_O |
1767 				    IEEE80211_RADIOTAP_EHT_USER_INFO_BEAMFORMING_KNOWN_O |
1768 				    IEEE80211_RADIOTAP_EHT_USER_INFO_DATA_FOR_USER);
1769 
1770 		if (rate_n_flags & RATE_MCS_BF_MSK)
1771 			eht->user_info[0] |=
1772 				cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_BEAMFORMING_O);
1773 
1774 		if (rate_n_flags & RATE_MCS_LDPC_MSK)
1775 			eht->user_info[0] |=
1776 				cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_CODING);
1777 
1778 		eht->user_info[0] |= cpu_to_le32
1779 			(FIELD_PREP(IEEE80211_RADIOTAP_EHT_USER_INFO_MCS,
1780 				    FIELD_GET(RATE_VHT_MCS_RATE_CODE_MSK,
1781 					      rate_n_flags)) |
1782 			 FIELD_PREP(IEEE80211_RADIOTAP_EHT_USER_INFO_NSS_O,
1783 				    FIELD_GET(RATE_MCS_NSS_MSK, rate_n_flags)));
1784 	}
1785 }
1786 
iwl_mvm_rx_he(struct iwl_mvm * mvm,struct sk_buff * skb,struct iwl_mvm_rx_phy_data * phy_data,int queue)1787 static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct sk_buff *skb,
1788 			  struct iwl_mvm_rx_phy_data *phy_data,
1789 			  int queue)
1790 {
1791 	struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
1792 	struct ieee80211_radiotap_he *he = NULL;
1793 	struct ieee80211_radiotap_he_mu *he_mu = NULL;
1794 	u32 rate_n_flags = phy_data->rate_n_flags;
1795 	u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK;
1796 	u8 ltf;
1797 	static const struct ieee80211_radiotap_he known = {
1798 		.data1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_DATA_MCS_KNOWN |
1799 				     IEEE80211_RADIOTAP_HE_DATA1_DATA_DCM_KNOWN |
1800 				     IEEE80211_RADIOTAP_HE_DATA1_STBC_KNOWN |
1801 				     IEEE80211_RADIOTAP_HE_DATA1_CODING_KNOWN),
1802 		.data2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_GI_KNOWN |
1803 				     IEEE80211_RADIOTAP_HE_DATA2_TXBF_KNOWN),
1804 	};
1805 	static const struct ieee80211_radiotap_he_mu mu_known = {
1806 		.flags1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS_KNOWN |
1807 				      IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM_KNOWN |
1808 				      IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_SYMS_USERS_KNOWN |
1809 				      IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_COMP_KNOWN),
1810 		.flags2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW_KNOWN |
1811 				      IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_KNOWN),
1812 	};
1813 	u16 phy_info = phy_data->phy_info;
1814 
1815 	he = skb_put_data(skb, &known, sizeof(known));
1816 	rx_status->flag |= RX_FLAG_RADIOTAP_HE;
1817 
1818 	if (phy_data->info_type == IWL_RX_PHY_INFO_TYPE_HE_MU ||
1819 	    phy_data->info_type == IWL_RX_PHY_INFO_TYPE_HE_MU_EXT) {
1820 		he_mu = skb_put_data(skb, &mu_known, sizeof(mu_known));
1821 		rx_status->flag |= RX_FLAG_RADIOTAP_HE_MU;
1822 	}
1823 
1824 	/* report the AMPDU-EOF bit on single frames */
1825 	if (!queue && !(phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
1826 		rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
1827 		rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
1828 		if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_HE_DELIM_EOF))
1829 			rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;
1830 	}
1831 
1832 	if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)
1833 		iwl_mvm_decode_he_phy_data(mvm, phy_data, he, he_mu, rx_status,
1834 					   queue);
1835 
1836 	/* update aggregation data for monitor sake on default queue */
1837 	if (!queue && (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) &&
1838 	    (phy_info & IWL_RX_MPDU_PHY_AMPDU) && phy_data->first_subframe) {
1839 		rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
1840 		if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_EHT_DELIM_EOF))
1841 			rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;
1842 	}
1843 
1844 	if (he_type == RATE_MCS_HE_TYPE_EXT_SU &&
1845 	    rate_n_flags & RATE_MCS_HE_106T_MSK) {
1846 		rx_status->bw = RATE_INFO_BW_HE_RU;
1847 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106;
1848 	}
1849 
1850 	/* actually data is filled in mac80211 */
1851 	if (he_type == RATE_MCS_HE_TYPE_SU ||
1852 	    he_type == RATE_MCS_HE_TYPE_EXT_SU)
1853 		he->data1 |=
1854 			cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN);
1855 
1856 #define CHECK_TYPE(F)							\
1857 	BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA1_FORMAT_ ## F !=	\
1858 		     (RATE_MCS_HE_TYPE_ ## F >> RATE_MCS_HE_TYPE_POS))
1859 
1860 	CHECK_TYPE(SU);
1861 	CHECK_TYPE(EXT_SU);
1862 	CHECK_TYPE(MU);
1863 	CHECK_TYPE(TRIG);
1864 
1865 	he->data1 |= cpu_to_le16(he_type >> RATE_MCS_HE_TYPE_POS);
1866 
1867 	if (rate_n_flags & RATE_MCS_BF_MSK)
1868 		he->data5 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA5_TXBF);
1869 
1870 	switch ((rate_n_flags & RATE_MCS_HE_GI_LTF_MSK) >>
1871 		RATE_MCS_HE_GI_LTF_POS) {
1872 	case 0:
1873 		if (he_type == RATE_MCS_HE_TYPE_TRIG)
1874 			rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
1875 		else
1876 			rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
1877 		if (he_type == RATE_MCS_HE_TYPE_MU)
1878 			ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
1879 		else
1880 			ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_1X;
1881 		break;
1882 	case 1:
1883 		if (he_type == RATE_MCS_HE_TYPE_TRIG)
1884 			rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
1885 		else
1886 			rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
1887 		ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;
1888 		break;
1889 	case 2:
1890 		if (he_type == RATE_MCS_HE_TYPE_TRIG) {
1891 			rx_status->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
1892 			ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
1893 		} else {
1894 			rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
1895 			ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;
1896 		}
1897 		break;
1898 	case 3:
1899 		rx_status->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
1900 		ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
1901 		break;
1902 	case 4:
1903 		rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
1904 		ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
1905 		break;
1906 	default:
1907 		ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_UNKNOWN;
1908 	}
1909 
1910 	he->data5 |= le16_encode_bits(ltf,
1911 				      IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE);
1912 }
1913 
iwl_mvm_decode_lsig(struct sk_buff * skb,struct iwl_mvm_rx_phy_data * phy_data)1914 static void iwl_mvm_decode_lsig(struct sk_buff *skb,
1915 				struct iwl_mvm_rx_phy_data *phy_data)
1916 {
1917 	struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
1918 	struct ieee80211_radiotap_lsig *lsig;
1919 
1920 	switch (phy_data->info_type) {
1921 	case IWL_RX_PHY_INFO_TYPE_HT:
1922 	case IWL_RX_PHY_INFO_TYPE_VHT_SU:
1923 	case IWL_RX_PHY_INFO_TYPE_VHT_MU:
1924 	case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:
1925 	case IWL_RX_PHY_INFO_TYPE_HE_SU:
1926 	case IWL_RX_PHY_INFO_TYPE_HE_MU:
1927 	case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
1928 	case IWL_RX_PHY_INFO_TYPE_HE_TB:
1929 	case IWL_RX_PHY_INFO_TYPE_EHT_MU:
1930 	case IWL_RX_PHY_INFO_TYPE_EHT_TB:
1931 	case IWL_RX_PHY_INFO_TYPE_EHT_MU_EXT:
1932 	case IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT:
1933 		lsig = skb_put(skb, sizeof(*lsig));
1934 		lsig->data1 = cpu_to_le16(IEEE80211_RADIOTAP_LSIG_DATA1_LENGTH_KNOWN);
1935 		lsig->data2 = le16_encode_bits(le32_get_bits(phy_data->d1,
1936 							     IWL_RX_PHY_DATA1_LSIG_LEN_MASK),
1937 					       IEEE80211_RADIOTAP_LSIG_DATA2_LENGTH);
1938 		rx_status->flag |= RX_FLAG_RADIOTAP_LSIG;
1939 		break;
1940 	default:
1941 		break;
1942 	}
1943 }
1944 
1945 struct iwl_rx_sta_csa {
1946 	bool all_sta_unblocked;
1947 	struct ieee80211_vif *vif;
1948 };
1949 
iwl_mvm_rx_get_sta_block_tx(void * data,struct ieee80211_sta * sta)1950 static void iwl_mvm_rx_get_sta_block_tx(void *data, struct ieee80211_sta *sta)
1951 {
1952 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1953 	struct iwl_rx_sta_csa *rx_sta_csa = data;
1954 
1955 	if (mvmsta->vif != rx_sta_csa->vif)
1956 		return;
1957 
1958 	if (mvmsta->disable_tx)
1959 		rx_sta_csa->all_sta_unblocked = false;
1960 }
1961 
1962 /*
1963  * Note: requires also rx_status->band to be prefilled, as well
1964  * as phy_data (apart from phy_data->info_type)
1965  * Note: desc/hdr may be NULL
1966  */
iwl_mvm_rx_fill_status(struct iwl_mvm * mvm,struct iwl_rx_mpdu_desc * desc,struct ieee80211_hdr * hdr,struct sk_buff * skb,struct iwl_mvm_rx_phy_data * phy_data,int queue)1967 static void iwl_mvm_rx_fill_status(struct iwl_mvm *mvm,
1968 				   struct iwl_rx_mpdu_desc *desc,
1969 				   struct ieee80211_hdr *hdr,
1970 				   struct sk_buff *skb,
1971 				   struct iwl_mvm_rx_phy_data *phy_data,
1972 				   int queue)
1973 {
1974 	struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
1975 	u32 rate_n_flags = phy_data->rate_n_flags;
1976 	u8 stbc = u32_get_bits(rate_n_flags, RATE_MCS_STBC_MSK);
1977 	u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
1978 	bool is_sgi;
1979 
1980 	phy_data->info_type = IWL_RX_PHY_INFO_TYPE_NONE;
1981 
1982 	if (phy_data->phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)
1983 		phy_data->info_type =
1984 			le32_get_bits(phy_data->d1,
1985 				      IWL_RX_PHY_DATA1_INFO_TYPE_MASK);
1986 
1987 	/* This may be overridden by iwl_mvm_rx_he() to HE_RU */
1988 	switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
1989 	case RATE_MCS_CHAN_WIDTH_20:
1990 		break;
1991 	case RATE_MCS_CHAN_WIDTH_40:
1992 		rx_status->bw = RATE_INFO_BW_40;
1993 		break;
1994 	case RATE_MCS_CHAN_WIDTH_80:
1995 		rx_status->bw = RATE_INFO_BW_80;
1996 		break;
1997 	case RATE_MCS_CHAN_WIDTH_160:
1998 		rx_status->bw = RATE_INFO_BW_160;
1999 		break;
2000 	case RATE_MCS_CHAN_WIDTH_320:
2001 		rx_status->bw = RATE_INFO_BW_320;
2002 		break;
2003 	}
2004 
2005 	/* must be before L-SIG data */
2006 	if (format == RATE_MCS_MOD_TYPE_HE)
2007 		iwl_mvm_rx_he(mvm, skb, phy_data, queue);
2008 
2009 	iwl_mvm_decode_lsig(skb, phy_data);
2010 
2011 	rx_status->device_timestamp = phy_data->gp2_on_air_rise;
2012 
2013 	if (mvm->rx_ts_ptp && mvm->monitor_on) {
2014 		u64 adj_time =
2015 			iwl_mvm_ptp_get_adj_time(mvm, phy_data->gp2_on_air_rise * NSEC_PER_USEC);
2016 
2017 		rx_status->mactime = div64_u64(adj_time, NSEC_PER_USEC);
2018 		rx_status->flag |= RX_FLAG_MACTIME_IS_RTAP_TS64;
2019 		rx_status->flag &= ~RX_FLAG_MACTIME;
2020 	}
2021 
2022 	rx_status->freq = ieee80211_channel_to_frequency(phy_data->channel,
2023 							 rx_status->band);
2024 	iwl_mvm_get_signal_strength(mvm, desc, hdr, rx_status, rate_n_flags,
2025 				    phy_data->energy_a, phy_data->energy_b);
2026 
2027 	/* using TLV format and must be after all fixed len fields */
2028 	if (format == RATE_MCS_MOD_TYPE_EHT)
2029 		iwl_mvm_rx_eht(mvm, skb, phy_data, queue);
2030 
2031 	if (unlikely(mvm->monitor_on))
2032 		iwl_mvm_add_rtap_sniffer_config(mvm, skb);
2033 
2034 	is_sgi = format == RATE_MCS_MOD_TYPE_HE ?
2035 		iwl_he_is_sgi(rate_n_flags) :
2036 		rate_n_flags & RATE_MCS_SGI_MSK;
2037 
2038 	if (!(format == RATE_MCS_MOD_TYPE_CCK) && is_sgi)
2039 		rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
2040 
2041 	if (rate_n_flags & RATE_MCS_LDPC_MSK)
2042 		rx_status->enc_flags |= RX_ENC_FLAG_LDPC;
2043 
2044 	switch (format) {
2045 	case RATE_MCS_MOD_TYPE_VHT:
2046 		rx_status->encoding = RX_ENC_VHT;
2047 		break;
2048 	case RATE_MCS_MOD_TYPE_HE:
2049 		rx_status->encoding = RX_ENC_HE;
2050 		rx_status->he_dcm =
2051 			!!(rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK);
2052 		break;
2053 	case RATE_MCS_MOD_TYPE_EHT:
2054 		rx_status->encoding = RX_ENC_EHT;
2055 		break;
2056 	}
2057 
2058 	switch (format) {
2059 	case RATE_MCS_MOD_TYPE_HT:
2060 		rx_status->encoding = RX_ENC_HT;
2061 		rx_status->rate_idx = RATE_HT_MCS_INDEX(rate_n_flags);
2062 		rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
2063 		break;
2064 	case RATE_MCS_MOD_TYPE_VHT:
2065 	case RATE_MCS_MOD_TYPE_HE:
2066 	case RATE_MCS_MOD_TYPE_EHT:
2067 		rx_status->nss =
2068 			u32_get_bits(rate_n_flags, RATE_MCS_NSS_MSK) + 1;
2069 		rx_status->rate_idx = rate_n_flags & RATE_MCS_CODE_MSK;
2070 		rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
2071 		break;
2072 	default: {
2073 		int rate = iwl_mvm_legacy_hw_idx_to_mac80211_idx(rate_n_flags,
2074 								 rx_status->band);
2075 
2076 		rx_status->rate_idx = rate;
2077 
2078 		if ((rate < 0 || rate > 0xFF)) {
2079 			rx_status->rate_idx = 0;
2080 			if (net_ratelimit())
2081 				IWL_ERR(mvm, "Invalid rate flags 0x%x, band %d,\n",
2082 					rate_n_flags, rx_status->band);
2083 		}
2084 
2085 		break;
2086 		}
2087 	}
2088 }
2089 
iwl_mvm_rx_mpdu_mq(struct iwl_mvm * mvm,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb,int queue)2090 void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
2091 			struct iwl_rx_cmd_buffer *rxb, int queue)
2092 {
2093 	struct ieee80211_rx_status *rx_status;
2094 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
2095 	struct iwl_rx_mpdu_desc *desc = (void *)pkt->data;
2096 	struct ieee80211_hdr *hdr;
2097 	u32 len;
2098 	u32 pkt_len = iwl_rx_packet_payload_len(pkt);
2099 	struct ieee80211_sta *sta = NULL;
2100 	struct sk_buff *skb;
2101 	u8 crypt_len = 0;
2102 	u8 sta_id = le32_get_bits(desc->status, IWL_RX_MPDU_STATUS_STA_ID);
2103 	size_t desc_size;
2104 	struct iwl_mvm_rx_phy_data phy_data = {};
2105 	u32 format;
2106 
2107 	if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)))
2108 		return;
2109 
2110 	if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
2111 		desc_size = sizeof(*desc);
2112 	else
2113 		desc_size = IWL_RX_DESC_SIZE_V1;
2114 
2115 	if (unlikely(pkt_len < desc_size)) {
2116 		IWL_DEBUG_DROP(mvm, "Bad REPLY_RX_MPDU_CMD size\n");
2117 		return;
2118 	}
2119 
2120 	if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) {
2121 		phy_data.rate_n_flags =
2122 			iwl_mvm_v3_rate_from_fw(desc->v3.rate_n_flags,
2123 						mvm->fw_rates_ver);
2124 		phy_data.channel = desc->v3.channel;
2125 		phy_data.gp2_on_air_rise = le32_to_cpu(desc->v3.gp2_on_air_rise);
2126 		phy_data.energy_a = desc->v3.energy_a;
2127 		phy_data.energy_b = desc->v3.energy_b;
2128 
2129 		phy_data.d0 = desc->v3.phy_data0;
2130 		phy_data.d1 = desc->v3.phy_data1;
2131 		phy_data.d2 = desc->v3.phy_data2;
2132 		phy_data.d3 = desc->v3.phy_data3;
2133 		phy_data.eht_d4 = desc->phy_eht_data4;
2134 		phy_data.d5 = desc->v3.phy_data5;
2135 	} else {
2136 		phy_data.rate_n_flags =
2137 			iwl_mvm_v3_rate_from_fw(desc->v1.rate_n_flags,
2138 						mvm->fw_rates_ver);
2139 		phy_data.channel = desc->v1.channel;
2140 		phy_data.gp2_on_air_rise = le32_to_cpu(desc->v1.gp2_on_air_rise);
2141 		phy_data.energy_a = desc->v1.energy_a;
2142 		phy_data.energy_b = desc->v1.energy_b;
2143 
2144 		phy_data.d0 = desc->v1.phy_data0;
2145 		phy_data.d1 = desc->v1.phy_data1;
2146 		phy_data.d2 = desc->v1.phy_data2;
2147 		phy_data.d3 = desc->v1.phy_data3;
2148 	}
2149 
2150 	format = phy_data.rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
2151 
2152 	len = le16_to_cpu(desc->mpdu_len);
2153 
2154 	if (unlikely(len + desc_size > pkt_len)) {
2155 		IWL_DEBUG_DROP(mvm, "FW lied about packet len\n");
2156 		return;
2157 	}
2158 
2159 	phy_data.with_data = true;
2160 	phy_data.phy_info = le16_to_cpu(desc->phy_info);
2161 	phy_data.d4 = desc->phy_data4;
2162 
2163 	hdr = (void *)(pkt->data + desc_size);
2164 	/* Dont use dev_alloc_skb(), we'll have enough headroom once
2165 	 * ieee80211_hdr pulled.
2166 	 */
2167 	skb = alloc_skb(128, GFP_ATOMIC);
2168 	if (!skb) {
2169 		IWL_ERR(mvm, "alloc_skb failed\n");
2170 		return;
2171 	}
2172 
2173 	if (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_PAD) {
2174 		/*
2175 		 * If the device inserted padding it means that (it thought)
2176 		 * the 802.11 header wasn't a multiple of 4 bytes long. In
2177 		 * this case, reserve two bytes at the start of the SKB to
2178 		 * align the payload properly in case we end up copying it.
2179 		 */
2180 		skb_reserve(skb, 2);
2181 	}
2182 
2183 	rx_status = IEEE80211_SKB_RXCB(skb);
2184 
2185 	/*
2186 	 * Keep packets with CRC errors (and with overrun) for monitor mode
2187 	 * (otherwise the firmware discards them) but mark them as bad.
2188 	 */
2189 	if (!(desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_CRC_OK)) ||
2190 	    !(desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_OVERRUN_OK))) {
2191 		IWL_DEBUG_RX(mvm, "Bad CRC or FIFO: 0x%08X.\n",
2192 			     le32_to_cpu(desc->status));
2193 		rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
2194 	}
2195 
2196 	/* set the preamble flag if appropriate */
2197 	if (format == RATE_MCS_MOD_TYPE_CCK &&
2198 	    phy_data.phy_info & IWL_RX_MPDU_PHY_SHORT_PREAMBLE)
2199 		rx_status->enc_flags |= RX_ENC_FLAG_SHORTPRE;
2200 
2201 	if (likely(!(phy_data.phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD))) {
2202 		u64 tsf_on_air_rise;
2203 
2204 		if (mvm->trans->mac_cfg->device_family >=
2205 		    IWL_DEVICE_FAMILY_AX210)
2206 			tsf_on_air_rise = le64_to_cpu(desc->v3.tsf_on_air_rise);
2207 		else
2208 			tsf_on_air_rise = le64_to_cpu(desc->v1.tsf_on_air_rise);
2209 
2210 		rx_status->mactime = tsf_on_air_rise;
2211 		/* TSF as indicated by the firmware is at INA time */
2212 		rx_status->flag |= RX_FLAG_MACTIME_PLCP_START;
2213 	}
2214 
2215 	if (iwl_mvm_is_band_in_rx_supported(mvm)) {
2216 		u8 band = u8_get_bits(desc->mac_phy_band,
2217 				      IWL_RX_MPDU_MAC_PHY_BAND_BAND_MASK);
2218 
2219 		rx_status->band = iwl_mvm_nl80211_band_from_phy(band);
2220 	} else {
2221 		rx_status->band = phy_data.channel > 14 ? NL80211_BAND_5GHZ :
2222 			NL80211_BAND_2GHZ;
2223 	}
2224 
2225 	/* update aggregation data for monitor sake on default queue */
2226 	if (!queue && (phy_data.phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
2227 		bool toggle_bit;
2228 
2229 		toggle_bit = phy_data.phy_info & IWL_RX_MPDU_PHY_AMPDU_TOGGLE;
2230 		rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
2231 		/*
2232 		 * Toggle is switched whenever new aggregation starts. Make
2233 		 * sure ampdu_reference is never 0 so we can later use it to
2234 		 * see if the frame was really part of an A-MPDU or not.
2235 		 */
2236 		if (toggle_bit != mvm->ampdu_toggle) {
2237 			mvm->ampdu_ref++;
2238 			if (mvm->ampdu_ref == 0)
2239 				mvm->ampdu_ref++;
2240 			mvm->ampdu_toggle = toggle_bit;
2241 			phy_data.first_subframe = true;
2242 		}
2243 		rx_status->ampdu_reference = mvm->ampdu_ref;
2244 	}
2245 
2246 	rcu_read_lock();
2247 
2248 	if (desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_SRC_STA_FOUND)) {
2249 		if (!WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) {
2250 			struct ieee80211_link_sta *link_sta;
2251 
2252 			sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
2253 			if (IS_ERR(sta))
2254 				sta = NULL;
2255 			link_sta = rcu_dereference(mvm->fw_id_to_link_sta[sta_id]);
2256 
2257 			if (sta && sta->valid_links && link_sta) {
2258 				rx_status->link_valid = 1;
2259 				rx_status->link_id = link_sta->link_id;
2260 			}
2261 		}
2262 	} else if (!is_multicast_ether_addr(hdr->addr2)) {
2263 		/*
2264 		 * This is fine since we prevent two stations with the same
2265 		 * address from being added.
2266 		 */
2267 		sta = ieee80211_find_sta_by_ifaddr(mvm->hw, hdr->addr2, NULL);
2268 	}
2269 
2270 	if (iwl_mvm_rx_crypto(mvm, sta, hdr, rx_status, phy_data.phy_info, desc,
2271 			      le32_to_cpu(pkt->len_n_flags), queue,
2272 			      &crypt_len)) {
2273 		kfree_skb(skb);
2274 		goto out;
2275 	}
2276 
2277 	iwl_mvm_rx_fill_status(mvm, desc, hdr, skb, &phy_data, queue);
2278 
2279 	if (sta) {
2280 		struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
2281 		struct ieee80211_vif *tx_blocked_vif =
2282 			rcu_dereference(mvm->csa_tx_blocked_vif);
2283 		u8 baid = (u8)((le32_to_cpu(desc->reorder_data) &
2284 			       IWL_RX_MPDU_REORDER_BAID_MASK) >>
2285 			       IWL_RX_MPDU_REORDER_BAID_SHIFT);
2286 		struct iwl_fw_dbg_trigger_tlv *trig;
2287 		struct ieee80211_vif *vif = mvmsta->vif;
2288 
2289 		if (!mvm->tcm.paused && len >= sizeof(*hdr) &&
2290 		    !is_multicast_ether_addr(hdr->addr1) &&
2291 		    ieee80211_is_data(hdr->frame_control) &&
2292 		    time_after(jiffies, mvm->tcm.ts + MVM_TCM_PERIOD))
2293 			schedule_delayed_work(&mvm->tcm.work, 0);
2294 
2295 		/*
2296 		 * We have tx blocked stations (with CS bit). If we heard
2297 		 * frames from a blocked station on a new channel we can
2298 		 * TX to it again.
2299 		 */
2300 		if (unlikely(tx_blocked_vif) && tx_blocked_vif == vif) {
2301 			struct iwl_mvm_vif *mvmvif =
2302 				iwl_mvm_vif_from_mac80211(tx_blocked_vif);
2303 			struct iwl_rx_sta_csa rx_sta_csa = {
2304 				.all_sta_unblocked = true,
2305 				.vif = tx_blocked_vif,
2306 			};
2307 
2308 			if (mvmvif->csa_target_freq == rx_status->freq)
2309 				iwl_mvm_sta_modify_disable_tx_ap(mvm, sta,
2310 								 false);
2311 			ieee80211_iterate_stations_atomic(mvm->hw,
2312 							  iwl_mvm_rx_get_sta_block_tx,
2313 							  &rx_sta_csa);
2314 
2315 			if (rx_sta_csa.all_sta_unblocked) {
2316 				RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2317 				/* Unblock BCAST / MCAST station */
2318 				iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
2319 				cancel_delayed_work(&mvm->cs_tx_unblock_dwork);
2320 			}
2321 		}
2322 
2323 		rs_update_last_rssi(mvm, mvmsta, rx_status);
2324 
2325 		trig = iwl_fw_dbg_trigger_on(&mvm->fwrt,
2326 					     ieee80211_vif_to_wdev(vif),
2327 					     FW_DBG_TRIGGER_RSSI);
2328 
2329 		if (trig && ieee80211_is_beacon(hdr->frame_control)) {
2330 			struct iwl_fw_dbg_trigger_low_rssi *rssi_trig;
2331 			s32 rssi;
2332 
2333 			rssi_trig = (void *)trig->data;
2334 			rssi = le32_to_cpu(rssi_trig->rssi);
2335 
2336 			if (rx_status->signal < rssi)
2337 				iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
2338 							NULL);
2339 		}
2340 
2341 		if (ieee80211_is_data(hdr->frame_control))
2342 			iwl_mvm_rx_csum(mvm, sta, skb, pkt);
2343 
2344 		if (iwl_mvm_is_dup(sta, queue, rx_status, hdr, desc)) {
2345 			IWL_DEBUG_DROP(mvm, "Dropping duplicate packet 0x%x\n",
2346 				       le16_to_cpu(hdr->seq_ctrl));
2347 			kfree_skb(skb);
2348 			goto out;
2349 		}
2350 
2351 		/*
2352 		 * Our hardware de-aggregates AMSDUs but copies the mac header
2353 		 * as it to the de-aggregated MPDUs. We need to turn off the
2354 		 * AMSDU bit in the QoS control ourselves.
2355 		 * In addition, HW reverses addr3 and addr4 - reverse it back.
2356 		 */
2357 		if ((desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU) &&
2358 		    !WARN_ON(!ieee80211_is_data_qos(hdr->frame_control))) {
2359 			u8 *qc = ieee80211_get_qos_ctl(hdr);
2360 
2361 			*qc &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT;
2362 
2363 			if (mvm->trans->mac_cfg->device_family ==
2364 			    IWL_DEVICE_FAMILY_9000) {
2365 				iwl_mvm_flip_address(hdr->addr3);
2366 
2367 				if (ieee80211_has_a4(hdr->frame_control))
2368 					iwl_mvm_flip_address(hdr->addr4);
2369 			}
2370 		}
2371 		if (baid != IWL_RX_REORDER_DATA_INVALID_BAID) {
2372 			u32 reorder_data = le32_to_cpu(desc->reorder_data);
2373 
2374 			iwl_mvm_agg_rx_received(mvm, reorder_data, baid);
2375 		}
2376 
2377 		if (ieee80211_is_data(hdr->frame_control)) {
2378 			u8 sub_frame_idx = desc->amsdu_info &
2379 				IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK;
2380 
2381 			/* 0 means not an A-MSDU, and 1 means a new A-MSDU */
2382 			if (!sub_frame_idx || sub_frame_idx == 1)
2383 				iwl_mvm_count_mpdu(mvmsta, sta_id, 1, false,
2384 						   queue);
2385 		}
2386 	}
2387 
2388 	/* management stuff on default queue */
2389 	if (!queue) {
2390 		if (unlikely((ieee80211_is_beacon(hdr->frame_control) ||
2391 			      ieee80211_is_probe_resp(hdr->frame_control)) &&
2392 			     mvm->sched_scan_pass_all ==
2393 			     SCHED_SCAN_PASS_ALL_ENABLED))
2394 			mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_FOUND;
2395 
2396 		if (unlikely(ieee80211_is_beacon(hdr->frame_control) ||
2397 			     ieee80211_is_probe_resp(hdr->frame_control)))
2398 			rx_status->boottime_ns = ktime_get_boottime_ns();
2399 	}
2400 
2401 	if (iwl_mvm_create_skb(mvm, skb, hdr, len, crypt_len, rxb)) {
2402 		kfree_skb(skb);
2403 		goto out;
2404 	}
2405 
2406 	if (!iwl_mvm_reorder(mvm, napi, queue, sta, skb, desc) &&
2407 	    likely(!iwl_mvm_time_sync_frame(mvm, skb, hdr->addr2)) &&
2408 	    likely(!iwl_mvm_mei_filter_scan(mvm, skb))) {
2409 		if (mvm->trans->mac_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
2410 		    (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU) &&
2411 		    !(desc->amsdu_info & IWL_RX_MPDU_AMSDU_LAST_SUBFRAME))
2412 			rx_status->flag |= RX_FLAG_AMSDU_MORE;
2413 
2414 		iwl_mvm_pass_packet_to_mac80211(mvm, napi, skb, queue, sta);
2415 	}
2416 out:
2417 	rcu_read_unlock();
2418 }
2419 
iwl_mvm_rx_monitor_no_data(struct iwl_mvm * mvm,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb,int queue)2420 void iwl_mvm_rx_monitor_no_data(struct iwl_mvm *mvm, struct napi_struct *napi,
2421 				struct iwl_rx_cmd_buffer *rxb, int queue)
2422 {
2423 	struct ieee80211_rx_status *rx_status;
2424 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
2425 	struct iwl_rx_no_data_ver_3 *desc = (void *)pkt->data;
2426 	u32 rssi;
2427 	struct ieee80211_sta *sta = NULL;
2428 	struct sk_buff *skb;
2429 	struct iwl_mvm_rx_phy_data phy_data;
2430 	u32 format;
2431 
2432 	if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)))
2433 		return;
2434 
2435 	if (unlikely(iwl_rx_packet_payload_len(pkt) < sizeof(struct iwl_rx_no_data)))
2436 		return;
2437 
2438 	rssi = le32_to_cpu(desc->rssi);
2439 	phy_data.d0 = desc->phy_info[0];
2440 	phy_data.d1 = desc->phy_info[1];
2441 	phy_data.phy_info = IWL_RX_MPDU_PHY_TSF_OVERLOAD;
2442 	phy_data.gp2_on_air_rise = le32_to_cpu(desc->on_air_rise_time);
2443 	phy_data.energy_a = u32_get_bits(rssi, RX_NO_DATA_CHAIN_A_MSK);
2444 	phy_data.energy_b = u32_get_bits(rssi, RX_NO_DATA_CHAIN_B_MSK);
2445 	phy_data.channel = u32_get_bits(rssi, RX_NO_DATA_CHANNEL_MSK);
2446 	phy_data.with_data = false;
2447 	phy_data.rx_vec[0] = desc->rx_vec[0];
2448 	phy_data.rx_vec[1] = desc->rx_vec[1];
2449 
2450 	phy_data.rate_n_flags = iwl_mvm_v3_rate_from_fw(desc->rate,
2451 							mvm->fw_rates_ver);
2452 
2453 	format = phy_data.rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
2454 
2455 	if (iwl_fw_lookup_notif_ver(mvm->fw, DATA_PATH_GROUP,
2456 				    RX_NO_DATA_NOTIF, 0) >= 3) {
2457 		if (unlikely(iwl_rx_packet_payload_len(pkt) <
2458 		    sizeof(struct iwl_rx_no_data_ver_3)))
2459 		/* invalid len for ver 3 */
2460 			return;
2461 		phy_data.rx_vec[2] = desc->rx_vec[2];
2462 		phy_data.rx_vec[3] = desc->rx_vec[3];
2463 	} else {
2464 		if (format == RATE_MCS_MOD_TYPE_EHT)
2465 			/* no support for EHT before version 3 API */
2466 			return;
2467 	}
2468 
2469 	/* Dont use dev_alloc_skb(), we'll have enough headroom once
2470 	 * ieee80211_hdr pulled.
2471 	 */
2472 	skb = alloc_skb(128, GFP_ATOMIC);
2473 	if (!skb) {
2474 		IWL_ERR(mvm, "alloc_skb failed\n");
2475 		return;
2476 	}
2477 
2478 	rx_status = IEEE80211_SKB_RXCB(skb);
2479 
2480 	/* 0-length PSDU */
2481 	rx_status->flag |= RX_FLAG_NO_PSDU;
2482 
2483 	/* mark as failed PLCP on any errors to skip checks in mac80211 */
2484 	if (le32_get_bits(desc->info, RX_NO_DATA_INFO_ERR_MSK) !=
2485 	    RX_NO_DATA_INFO_ERR_NONE)
2486 		rx_status->flag |= RX_FLAG_FAILED_PLCP_CRC;
2487 
2488 	switch (le32_get_bits(desc->info, RX_NO_DATA_INFO_TYPE_MSK)) {
2489 	case RX_NO_DATA_INFO_TYPE_NDP:
2490 		rx_status->zero_length_psdu_type =
2491 			IEEE80211_RADIOTAP_ZERO_LEN_PSDU_SOUNDING;
2492 		break;
2493 	case RX_NO_DATA_INFO_TYPE_MU_UNMATCHED:
2494 	case RX_NO_DATA_INFO_TYPE_TB_UNMATCHED:
2495 		rx_status->zero_length_psdu_type =
2496 			IEEE80211_RADIOTAP_ZERO_LEN_PSDU_NOT_CAPTURED;
2497 		break;
2498 	default:
2499 		rx_status->zero_length_psdu_type =
2500 			IEEE80211_RADIOTAP_ZERO_LEN_PSDU_VENDOR;
2501 		break;
2502 	}
2503 
2504 	rx_status->band = phy_data.channel > 14 ? NL80211_BAND_5GHZ :
2505 		NL80211_BAND_2GHZ;
2506 
2507 	iwl_mvm_rx_fill_status(mvm, NULL, NULL, skb, &phy_data, queue);
2508 
2509 	/* no more radio tap info should be put after this point.
2510 	 *
2511 	 * We mark it as mac header, for upper layers to know where
2512 	 * all radio tap header ends.
2513 	 *
2514 	 * Since data doesn't move data while putting data on skb and that is
2515 	 * the only way we use, data + len is the next place that hdr would be put
2516 	 */
2517 	skb_set_mac_header(skb, skb->len);
2518 
2519 	/*
2520 	 * Override the nss from the rx_vec since the rate_n_flags has
2521 	 * only 2 bits for the nss which gives a max of 4 ss but there
2522 	 * may be up to 8 spatial streams.
2523 	 */
2524 	switch (format) {
2525 	case RATE_MCS_MOD_TYPE_VHT:
2526 		rx_status->nss =
2527 			le32_get_bits(desc->rx_vec[0],
2528 				      RX_NO_DATA_RX_VEC0_VHT_NSTS_MSK) + 1;
2529 		break;
2530 	case RATE_MCS_MOD_TYPE_HE:
2531 		rx_status->nss =
2532 			le32_get_bits(desc->rx_vec[0],
2533 				      RX_NO_DATA_RX_VEC0_HE_NSTS_MSK) + 1;
2534 		break;
2535 	case RATE_MCS_MOD_TYPE_EHT:
2536 		rx_status->nss =
2537 			le32_get_bits(desc->rx_vec[2],
2538 				      RX_NO_DATA_RX_VEC2_EHT_NSTS_MSK) + 1;
2539 	}
2540 
2541 	rcu_read_lock();
2542 	ieee80211_rx_napi(mvm->hw, sta, skb, napi);
2543 	rcu_read_unlock();
2544 }
2545 
iwl_mvm_rx_frame_release(struct iwl_mvm * mvm,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb,int queue)2546 void iwl_mvm_rx_frame_release(struct iwl_mvm *mvm, struct napi_struct *napi,
2547 			      struct iwl_rx_cmd_buffer *rxb, int queue)
2548 {
2549 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
2550 	struct iwl_frame_release *release = (void *)pkt->data;
2551 
2552 	if (unlikely(iwl_rx_packet_payload_len(pkt) < sizeof(*release)))
2553 		return;
2554 
2555 	iwl_mvm_release_frames_from_notif(mvm, napi, release->baid,
2556 					  le16_to_cpu(release->nssn),
2557 					  queue);
2558 }
2559 
iwl_mvm_rx_bar_frame_release(struct iwl_mvm * mvm,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb,int queue)2560 void iwl_mvm_rx_bar_frame_release(struct iwl_mvm *mvm, struct napi_struct *napi,
2561 				  struct iwl_rx_cmd_buffer *rxb, int queue)
2562 {
2563 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
2564 	struct iwl_bar_frame_release *release = (void *)pkt->data;
2565 	struct iwl_mvm_baid_data *baid_data;
2566 	u32 pkt_len = iwl_rx_packet_payload_len(pkt);
2567 	unsigned int baid, nssn, sta_id, tid;
2568 
2569 	if (IWL_FW_CHECK(mvm, pkt_len < sizeof(*release),
2570 			 "Unexpected frame release notif size %d (expected %zu)\n",
2571 			 pkt_len, sizeof(*release)))
2572 		return;
2573 
2574 	baid = le32_get_bits(release->ba_info,
2575 			     IWL_BAR_FRAME_RELEASE_BAID_MASK);
2576 	nssn = le32_get_bits(release->ba_info,
2577 			     IWL_BAR_FRAME_RELEASE_NSSN_MASK);
2578 	sta_id = le32_get_bits(release->sta_tid,
2579 			       IWL_BAR_FRAME_RELEASE_STA_MASK);
2580 	tid = le32_get_bits(release->sta_tid,
2581 			    IWL_BAR_FRAME_RELEASE_TID_MASK);
2582 
2583 	if (WARN_ON_ONCE(baid == IWL_RX_REORDER_DATA_INVALID_BAID ||
2584 			 baid >= ARRAY_SIZE(mvm->baid_map)))
2585 		return;
2586 
2587 	rcu_read_lock();
2588 	baid_data = rcu_dereference(mvm->baid_map[baid]);
2589 	if (!baid_data) {
2590 		IWL_DEBUG_RX(mvm,
2591 			     "Got valid BAID %d but not allocated, invalid BAR release!\n",
2592 			      baid);
2593 		goto out;
2594 	}
2595 
2596 	if (WARN(tid != baid_data->tid || sta_id > IWL_STATION_COUNT_MAX ||
2597 		 !(baid_data->sta_mask & BIT(sta_id)),
2598 		 "baid 0x%x is mapped to sta_mask:0x%x tid:%d, but BAR release received for sta:%d tid:%d\n",
2599 		 baid, baid_data->sta_mask, baid_data->tid, sta_id,
2600 		 tid))
2601 		goto out;
2602 
2603 	IWL_DEBUG_DROP(mvm, "Received a BAR, expect packet loss: nssn %d\n",
2604 		       nssn);
2605 
2606 	iwl_mvm_release_frames_from_notif(mvm, napi, baid, nssn, queue);
2607 out:
2608 	rcu_read_unlock();
2609 }
2610 
iwl_mvm_rx_beacon_filter_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)2611 void iwl_mvm_rx_beacon_filter_notif(struct iwl_mvm *mvm,
2612 				    struct iwl_rx_cmd_buffer *rxb)
2613 {
2614 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
2615 	/* MAC or link ID in v1/v2, but driver has the IDs equal */
2616 	struct iwl_beacon_filter_notif *notif = (void *)pkt->data;
2617 	u32 id = le32_to_cpu(notif->link_id);
2618 	struct iwl_mvm_vif *mvm_vif;
2619 	struct ieee80211_vif *vif;
2620 
2621 	/* >= means AUX MAC/link ID, no energy correction needed then */
2622 	if (IWL_FW_CHECK(mvm, id >= ARRAY_SIZE(mvm->vif_id_to_mac),
2623 			 "invalid link ID %d\n", id))
2624 		return;
2625 
2626 	vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, false);
2627 	if (!vif)
2628 		return;
2629 
2630 	mvm_vif = iwl_mvm_vif_from_mac80211(vif);
2631 
2632 	mvm_vif->deflink.average_beacon_energy =
2633 		le32_to_cpu(notif->average_energy);
2634 }
2635