xref: /freebsd/sys/contrib/dev/iwlwifi/mvm/rxmq.c (revision 6b627f88584ce13118e0a24951b503c0b1f2d5a7)
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 #if defined(__FreeBSD__)
10 #include <net/ieee80211_radiotap.h>
11 #endif
12 #include "iwl-trans.h"
13 #include "mvm.h"
14 #include "fw-api.h"
15 #include "time-sync.h"
16 
iwl_mvm_check_pn(struct iwl_mvm * mvm,struct sk_buff * skb,int queue,struct ieee80211_sta * sta)17 static inline int iwl_mvm_check_pn(struct iwl_mvm *mvm, struct sk_buff *skb,
18 				   int queue, struct ieee80211_sta *sta)
19 {
20 	struct iwl_mvm_sta *mvmsta;
21 	struct ieee80211_hdr *hdr = (void *)skb_mac_header(skb);
22 	struct ieee80211_rx_status *stats = IEEE80211_SKB_RXCB(skb);
23 	struct iwl_mvm_key_pn *ptk_pn;
24 	int res;
25 	u8 tid, keyidx;
26 	u8 pn[IEEE80211_CCMP_PN_LEN];
27 	u8 *extiv;
28 
29 	/* do PN checking */
30 
31 	/* multicast and non-data only arrives on default queue */
32 	if (!ieee80211_is_data(hdr->frame_control) ||
33 	    is_multicast_ether_addr(hdr->addr1))
34 		return 0;
35 
36 	/* do not check PN for open AP */
37 	if (!(stats->flag & RX_FLAG_DECRYPTED))
38 		return 0;
39 
40 	/*
41 	 * avoid checking for default queue - we don't want to replicate
42 	 * all the logic that's necessary for checking the PN on fragmented
43 	 * frames, leave that to mac80211
44 	 */
45 	if (queue == 0)
46 		return 0;
47 
48 	/* if we are here - this for sure is either CCMP or GCMP */
49 	if (IS_ERR_OR_NULL(sta)) {
50 		IWL_DEBUG_DROP(mvm,
51 			       "expected hw-decrypted unicast frame for station\n");
52 		return -1;
53 	}
54 
55 	mvmsta = iwl_mvm_sta_from_mac80211(sta);
56 
57 	extiv = (u8 *)hdr + ieee80211_hdrlen(hdr->frame_control);
58 	keyidx = extiv[3] >> 6;
59 
60 	ptk_pn = rcu_dereference(mvmsta->ptk_pn[keyidx]);
61 	if (!ptk_pn)
62 		return -1;
63 
64 	if (ieee80211_is_data_qos(hdr->frame_control))
65 		tid = ieee80211_get_tid(hdr);
66 	else
67 		tid = 0;
68 
69 	/* we don't use HCCA/802.11 QoS TSPECs, so drop such frames */
70 	if (tid >= IWL_MAX_TID_COUNT)
71 		return -1;
72 
73 	/* load pn */
74 	pn[0] = extiv[7];
75 	pn[1] = extiv[6];
76 	pn[2] = extiv[5];
77 	pn[3] = extiv[4];
78 	pn[4] = extiv[1];
79 	pn[5] = extiv[0];
80 
81 	res = memcmp(pn, ptk_pn->q[queue].pn[tid], IEEE80211_CCMP_PN_LEN);
82 	if (res < 0)
83 		return -1;
84 	if (!res && !(stats->flag & RX_FLAG_ALLOW_SAME_PN))
85 		return -1;
86 
87 	memcpy(ptk_pn->q[queue].pn[tid], pn, IEEE80211_CCMP_PN_LEN);
88 	stats->flag |= RX_FLAG_PN_VALIDATED;
89 
90 	return 0;
91 }
92 
93 /* 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)94 static int iwl_mvm_create_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
95 			      struct ieee80211_hdr *hdr, u16 len, u8 crypt_len,
96 			      struct iwl_rx_cmd_buffer *rxb)
97 {
98 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
99 	struct iwl_rx_mpdu_desc *desc = (void *)pkt->data;
100 	unsigned int headlen, fraglen, pad_len = 0;
101 	unsigned int hdrlen = ieee80211_hdrlen(hdr->frame_control);
102 	u8 mic_crc_len = u8_get_bits(desc->mac_flags1,
103 				     IWL_RX_MPDU_MFLG1_MIC_CRC_LEN_MASK) << 1;
104 
105 	if (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_PAD) {
106 		len -= 2;
107 		pad_len = 2;
108 	}
109 
110 	/*
111 	 * For non monitor interface strip the bytes the RADA might not have
112 	 * removed (it might be disabled, e.g. for mgmt frames). As a monitor
113 	 * interface cannot exist with other interfaces, this removal is safe
114 	 * and sufficient, in monitor mode there's no decryption being done.
115 	 */
116 	if (len > mic_crc_len && !ieee80211_hw_check(mvm->hw, RX_INCLUDES_FCS))
117 		len -= mic_crc_len;
118 
119 	/* If frame is small enough to fit in skb->head, pull it completely.
120 	 * If not, only pull ieee80211_hdr (including crypto if present, and
121 	 * an additional 8 bytes for SNAP/ethertype, see below) so that
122 	 * splice() or TCP coalesce are more efficient.
123 	 *
124 	 * Since, in addition, ieee80211_data_to_8023() always pull in at
125 	 * least 8 bytes (possibly more for mesh) we can do the same here
126 	 * to save the cost of doing it later. That still doesn't pull in
127 	 * the actual IP header since the typical case has a SNAP header.
128 	 * If the latter changes (there are efforts in the standards group
129 	 * to do so) we should revisit this and ieee80211_data_to_8023().
130 	 */
131 	headlen = (len <= skb_tailroom(skb)) ? len :
132 					       hdrlen + crypt_len + 8;
133 
134 	/* The firmware may align the packet to DWORD.
135 	 * The padding is inserted after the IV.
136 	 * After copying the header + IV skip the padding if
137 	 * present before copying packet data.
138 	 */
139 	hdrlen += crypt_len;
140 
141 	if (unlikely(headlen < hdrlen))
142 		return -EINVAL;
143 
144 	/* Since data doesn't move data while putting data on skb and that is
145 	 * the only way we use, data + len is the next place that hdr would be put
146 	 */
147 	skb_set_mac_header(skb, skb->len);
148 	skb_put_data(skb, hdr, hdrlen);
149 	skb_put_data(skb, (u8 *)hdr + hdrlen + pad_len, headlen - hdrlen);
150 
151 	/*
152 	 * If we did CHECKSUM_COMPLETE, the hardware only does it right for
153 	 * certain cases and starts the checksum after the SNAP. Check if
154 	 * this is the case - it's easier to just bail out to CHECKSUM_NONE
155 	 * in the cases the hardware didn't handle, since it's rare to see
156 	 * such packets, even though the hardware did calculate the checksum
157 	 * in this case, just starting after the MAC header instead.
158 	 *
159 	 * Starting from Bz hardware, it calculates starting directly after
160 	 * the MAC header, so that matches mac80211's expectation.
161 	 */
162 	if (skb->ip_summed == CHECKSUM_COMPLETE) {
163 		struct {
164 			u8 hdr[6];
165 			__be16 type;
166 		} __packed *shdr = (void *)((u8 *)hdr + hdrlen + pad_len);
167 
168 		if (unlikely(headlen - hdrlen < sizeof(*shdr) ||
169 			     !ether_addr_equal(shdr->hdr, rfc1042_header) ||
170 			     (shdr->type != htons(ETH_P_IP) &&
171 			      shdr->type != htons(ETH_P_ARP) &&
172 			      shdr->type != htons(ETH_P_IPV6) &&
173 			      shdr->type != htons(ETH_P_8021Q) &&
174 			      shdr->type != htons(ETH_P_PAE) &&
175 			      shdr->type != htons(ETH_P_TDLS))))
176 			skb->ip_summed = CHECKSUM_NONE;
177 		else if (mvm->trans->mac_cfg->device_family < IWL_DEVICE_FAMILY_BZ)
178 			/* mac80211 assumes full CSUM including SNAP header */
179 			skb_postpush_rcsum(skb, shdr, sizeof(*shdr));
180 	}
181 
182 	fraglen = len - headlen;
183 
184 	if (fraglen) {
185 		int offset = (u8 *)hdr + headlen + pad_len -
186 			     (u8 *)rxb_addr(rxb) + rxb_offset(rxb);
187 
188 		skb_add_rx_frag(skb, 0, rxb_steal_page(rxb), offset,
189 				fraglen, rxb->truesize);
190 	}
191 
192 	return 0;
193 }
194 
195 /* put a TLV on the skb and return data pointer
196  *
197  * Also pad to 4 the len and zero out all data part
198  */
199 static void *
iwl_mvm_radiotap_put_tlv(struct sk_buff * skb,u16 type,u16 len)200 iwl_mvm_radiotap_put_tlv(struct sk_buff *skb, u16 type, u16 len)
201 {
202 	struct ieee80211_radiotap_tlv *tlv;
203 
204 	tlv = skb_put(skb, sizeof(*tlv));
205 	tlv->type = cpu_to_le16(type);
206 	tlv->len = cpu_to_le16(len);
207 	return skb_put_zero(skb, ALIGN(len, 4));
208 }
209 
iwl_mvm_add_rtap_sniffer_config(struct iwl_mvm * mvm,struct sk_buff * skb)210 static void iwl_mvm_add_rtap_sniffer_config(struct iwl_mvm *mvm,
211 					    struct sk_buff *skb)
212 {
213 	struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
214 	struct ieee80211_radiotap_vendor_content *radiotap;
215 	const u16 vendor_data_len = sizeof(mvm->cur_aid);
216 
217 	if (!mvm->cur_aid)
218 		return;
219 
220 	radiotap = iwl_mvm_radiotap_put_tlv(skb,
221 					    IEEE80211_RADIOTAP_VENDOR_NAMESPACE,
222 					    sizeof(*radiotap) + vendor_data_len);
223 
224 	/* Intel OUI */
225 	radiotap->oui[0] = 0xf6;
226 	radiotap->oui[1] = 0x54;
227 	radiotap->oui[2] = 0x25;
228 	/* radiotap sniffer config sub-namespace */
229 	radiotap->oui_subtype = 1;
230 	radiotap->vendor_type = 0;
231 
232 	/* fill the data now */
233 	memcpy(radiotap->data, &mvm->cur_aid, sizeof(mvm->cur_aid));
234 
235 	rx_status->flag |= RX_FLAG_RADIOTAP_TLV_AT_END;
236 }
237 
238 /* 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)239 static void iwl_mvm_pass_packet_to_mac80211(struct iwl_mvm *mvm,
240 					    struct napi_struct *napi,
241 					    struct sk_buff *skb, int queue,
242 					    struct ieee80211_sta *sta)
243 {
244 	if (unlikely(iwl_mvm_check_pn(mvm, skb, queue, sta))) {
245 		kfree_skb(skb);
246 		return;
247 	}
248 
249 	ieee80211_rx_napi(mvm->hw, sta, skb, napi);
250 }
251 
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)252 static bool iwl_mvm_used_average_energy(struct iwl_mvm *mvm,
253 					struct iwl_rx_mpdu_desc *desc,
254 					struct ieee80211_hdr *hdr,
255 					struct ieee80211_rx_status *rx_status)
256 {
257 	struct iwl_mvm_vif *mvm_vif;
258 	struct ieee80211_vif *vif;
259 	u32 id;
260 
261 	if (unlikely(!hdr || !desc))
262 		return false;
263 
264 	if (likely(!ieee80211_is_beacon(hdr->frame_control)))
265 		return false;
266 
267 	/* for the link conf lookup */
268 	guard(rcu)();
269 
270 	/* MAC or link ID depending on FW, but driver has them equal */
271 	id = u8_get_bits(desc->mac_phy_band,
272 			 IWL_RX_MPDU_MAC_PHY_BAND_MAC_MASK);
273 
274 	/* >= means AUX MAC/link ID, no energy correction needed then */
275 	if (id >= ARRAY_SIZE(mvm->vif_id_to_mac))
276 		return false;
277 
278 	vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, true);
279 	if (!vif)
280 		return false;
281 
282 	mvm_vif = iwl_mvm_vif_from_mac80211(vif);
283 
284 	/*
285 	 * If we know the MAC by MAC or link ID then the frame was
286 	 * received for the link, so by filtering it means it was
287 	 * from the AP the link is connected to.
288 	 */
289 
290 	/* skip also in case we don't have it (yet) */
291 	if (!mvm_vif->deflink.average_beacon_energy)
292 		return false;
293 
294 	IWL_DEBUG_STATS(mvm, "energy override by average %d\n",
295 			mvm_vif->deflink.average_beacon_energy);
296 	rx_status->signal = -mvm_vif->deflink.average_beacon_energy;
297 	return true;
298 }
299 
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)300 static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm,
301 					struct iwl_rx_mpdu_desc *desc,
302 					struct ieee80211_hdr *hdr,
303 					struct ieee80211_rx_status *rx_status,
304 					u32 rate_n_flags, int energy_a,
305 					int energy_b)
306 {
307 	int max_energy;
308 
309 	energy_a = energy_a ? -energy_a : S8_MIN;
310 	energy_b = energy_b ? -energy_b : S8_MIN;
311 	max_energy = max(energy_a, energy_b);
312 
313 	IWL_DEBUG_STATS(mvm, "energy In A %d B %d, and max %d\n",
314 			energy_a, energy_b, max_energy);
315 
316 	if (iwl_mvm_used_average_energy(mvm, desc, hdr, rx_status))
317 		return;
318 
319 	rx_status->signal = max_energy;
320 	rx_status->chains = u32_get_bits(rate_n_flags, RATE_MCS_ANT_AB_MSK);
321 	rx_status->chain_signal[0] = energy_a;
322 	rx_status->chain_signal[1] = energy_b;
323 }
324 
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)325 static int iwl_mvm_rx_mgmt_prot(struct ieee80211_sta *sta,
326 				struct ieee80211_hdr *hdr,
327 				struct iwl_rx_mpdu_desc *desc,
328 				u32 status,
329 				struct ieee80211_rx_status *stats)
330 {
331 	struct wireless_dev *wdev;
332 	struct iwl_mvm_sta *mvmsta;
333 	struct iwl_mvm_vif *mvmvif;
334 	u8 keyid;
335 	struct ieee80211_key_conf *key;
336 	u32 len = le16_to_cpu(desc->mpdu_len);
337 	const u8 *frame = (void *)hdr;
338 
339 	if ((status & IWL_RX_MPDU_STATUS_SEC_MASK) == IWL_RX_MPDU_STATUS_SEC_NONE)
340 		return 0;
341 
342 	/*
343 	 * For non-beacon, we don't really care. But beacons may
344 	 * be filtered out, and we thus need the firmware's replay
345 	 * detection, otherwise beacons the firmware previously
346 	 * filtered could be replayed, or something like that, and
347 	 * it can filter a lot - though usually only if nothing has
348 	 * changed.
349 	 */
350 	if (!ieee80211_is_beacon(hdr->frame_control))
351 		return 0;
352 
353 	if (!sta)
354 		return -1;
355 
356 	mvmsta = iwl_mvm_sta_from_mac80211(sta);
357 	mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
358 
359 	/* key mismatch - will also report !MIC_OK but we shouldn't count it */
360 	if (!(status & IWL_RX_MPDU_STATUS_KEY_VALID))
361 		goto report;
362 
363 	/* good cases */
364 	if (likely(status & IWL_RX_MPDU_STATUS_MIC_OK &&
365 		   !(status & IWL_RX_MPDU_STATUS_REPLAY_ERROR))) {
366 		stats->flag |= RX_FLAG_DECRYPTED;
367 		return 0;
368 	}
369 
370 	/*
371 	 * both keys will have the same cipher and MIC length, use
372 	 * whichever one is available
373 	 */
374 	key = rcu_dereference(mvmvif->bcn_prot.keys[0]);
375 	if (!key) {
376 		key = rcu_dereference(mvmvif->bcn_prot.keys[1]);
377 		if (!key)
378 			goto report;
379 	}
380 
381 	if (len < key->icv_len + IEEE80211_GMAC_PN_LEN + 2)
382 		goto report;
383 
384 	/* get the real key ID */
385 	keyid = frame[len - key->icv_len - IEEE80211_GMAC_PN_LEN - 2];
386 	/* and if that's the other key, look it up */
387 	if (keyid != key->keyidx) {
388 		/*
389 		 * shouldn't happen since firmware checked, but be safe
390 		 * in case the MIC length is wrong too, for example
391 		 */
392 		if (keyid != 6 && keyid != 7)
393 			return -1;
394 		key = rcu_dereference(mvmvif->bcn_prot.keys[keyid - 6]);
395 		if (!key)
396 			goto report;
397 	}
398 
399 	/* Report status to mac80211 */
400 	if (!(status & IWL_RX_MPDU_STATUS_MIC_OK))
401 		ieee80211_key_mic_failure(key);
402 	else if (status & IWL_RX_MPDU_STATUS_REPLAY_ERROR)
403 		ieee80211_key_replay(key);
404 report:
405 	wdev = ieee80211_vif_to_wdev(mvmsta->vif);
406 	if (wdev->netdev)
407 		cfg80211_rx_unprot_mlme_mgmt(wdev->netdev, (void *)hdr, len);
408 
409 	return -1;
410 }
411 
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)412 static int iwl_mvm_rx_crypto(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
413 			     struct ieee80211_hdr *hdr,
414 			     struct ieee80211_rx_status *stats, u16 phy_info,
415 			     struct iwl_rx_mpdu_desc *desc,
416 			     u32 pkt_flags, int queue, u8 *crypt_len)
417 {
418 	u32 status = le32_to_cpu(desc->status);
419 
420 	/*
421 	 * Drop UNKNOWN frames in aggregation, unless in monitor mode
422 	 * (where we don't have the keys).
423 	 * We limit this to aggregation because in TKIP this is a valid
424 	 * scenario, since we may not have the (correct) TTAK (phase 1
425 	 * key) in the firmware.
426 	 */
427 	if (phy_info & IWL_RX_MPDU_PHY_AMPDU &&
428 	    (status & IWL_RX_MPDU_STATUS_SEC_MASK) ==
429 	    IWL_RX_MPDU_STATUS_SEC_UNKNOWN && !mvm->monitor_on) {
430 		IWL_DEBUG_DROP(mvm, "Dropping packets, bad enc status\n");
431 		return -1;
432 	}
433 
434 	if (unlikely(ieee80211_is_mgmt(hdr->frame_control) &&
435 		     !ieee80211_has_protected(hdr->frame_control)))
436 		return iwl_mvm_rx_mgmt_prot(sta, hdr, desc, status, stats);
437 
438 	if (!ieee80211_has_protected(hdr->frame_control) ||
439 	    (status & IWL_RX_MPDU_STATUS_SEC_MASK) ==
440 	    IWL_RX_MPDU_STATUS_SEC_NONE)
441 		return 0;
442 
443 	/* TODO: handle packets encrypted with unknown alg */
444 #if defined(__FreeBSD__)
445 	/* XXX-BZ do similar to rx.c for now as these are plenty. */
446 	if ((status & IWL_RX_MPDU_STATUS_SEC_MASK) ==
447 	    IWL_RX_MPDU_STATUS_SEC_ENC_ERR)
448 		return (0);
449 #endif
450 
451 	switch (status & IWL_RX_MPDU_STATUS_SEC_MASK) {
452 	case IWL_RX_MPDU_STATUS_SEC_CCM:
453 	case IWL_RX_MPDU_STATUS_SEC_GCM:
454 		BUILD_BUG_ON(IEEE80211_CCMP_PN_LEN != IEEE80211_GCMP_PN_LEN);
455 		/* alg is CCM: check MIC only */
456 		if (!(status & IWL_RX_MPDU_STATUS_MIC_OK)) {
457 			IWL_DEBUG_DROP(mvm,
458 				       "Dropping packet, bad MIC (CCM/GCM)\n");
459 			return -1;
460 		}
461 
462 		stats->flag |= RX_FLAG_DECRYPTED | RX_FLAG_MIC_STRIPPED;
463 		*crypt_len = IEEE80211_CCMP_HDR_LEN;
464 		return 0;
465 	case IWL_RX_MPDU_STATUS_SEC_TKIP:
466 		/* Don't drop the frame and decrypt it in SW */
467 		if (!fw_has_api(&mvm->fw->ucode_capa,
468 				IWL_UCODE_TLV_API_DEPRECATE_TTAK) &&
469 		    !(status & IWL_RX_MPDU_RES_STATUS_TTAK_OK))
470 			return 0;
471 
472 		if (mvm->trans->mac_cfg->gen2 &&
473 		    !(status & RX_MPDU_RES_STATUS_MIC_OK))
474 			stats->flag |= RX_FLAG_MMIC_ERROR;
475 
476 		*crypt_len = IEEE80211_TKIP_IV_LEN;
477 		fallthrough;
478 	case IWL_RX_MPDU_STATUS_SEC_WEP:
479 		if (!(status & IWL_RX_MPDU_STATUS_ICV_OK))
480 			return -1;
481 
482 		stats->flag |= RX_FLAG_DECRYPTED;
483 		if ((status & IWL_RX_MPDU_STATUS_SEC_MASK) ==
484 				IWL_RX_MPDU_STATUS_SEC_WEP)
485 			*crypt_len = IEEE80211_WEP_IV_LEN;
486 
487 		if (pkt_flags & FH_RSCSR_RADA_EN) {
488 			stats->flag |= RX_FLAG_ICV_STRIPPED;
489 			if (mvm->trans->mac_cfg->gen2)
490 				stats->flag |= RX_FLAG_MMIC_STRIPPED;
491 		}
492 
493 		return 0;
494 	case IWL_RX_MPDU_STATUS_SEC_EXT_ENC:
495 		if (!(status & IWL_RX_MPDU_STATUS_MIC_OK))
496 			return -1;
497 		stats->flag |= RX_FLAG_DECRYPTED;
498 		return 0;
499 	case RX_MPDU_RES_STATUS_SEC_CMAC_GMAC_ENC:
500 		break;
501 	default:
502 		/*
503 		 * Sometimes we can get frames that were not decrypted
504 		 * because the firmware didn't have the keys yet. This can
505 		 * happen after connection where we can get multicast frames
506 		 * before the GTK is installed.
507 		 * Silently drop those frames.
508 		 * Also drop un-decrypted frames in monitor mode.
509 		 */
510 		if (!is_multicast_ether_addr(hdr->addr1) &&
511 		    !mvm->monitor_on && net_ratelimit())
512 #if defined(__linux__)
513 			IWL_WARN(mvm, "Unhandled alg: 0x%x\n", status);
514 #elif defined(__FreeBSD__)
515 			IWL_WARN(mvm, "%s: Unhandled alg: 0x%x\n", __func__, status);
516 #endif
517 	}
518 
519 	return 0;
520 }
521 
iwl_mvm_rx_csum(struct iwl_mvm * mvm,struct ieee80211_sta * sta,struct sk_buff * skb,struct iwl_rx_packet * pkt)522 static void iwl_mvm_rx_csum(struct iwl_mvm *mvm,
523 			    struct ieee80211_sta *sta,
524 			    struct sk_buff *skb,
525 			    struct iwl_rx_packet *pkt)
526 {
527 	struct iwl_rx_mpdu_desc *desc = (void *)pkt->data;
528 
529 	if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) {
530 		if (pkt->len_n_flags & cpu_to_le32(FH_RSCSR_RPA_EN)) {
531 			u16 hwsum = be16_to_cpu(desc->v3.raw_xsum);
532 
533 			skb->ip_summed = CHECKSUM_COMPLETE;
534 			skb->csum = csum_unfold(~(__force __sum16)hwsum);
535 		}
536 	} else {
537 		struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
538 		struct iwl_mvm_vif *mvmvif;
539 		u16 flags = le16_to_cpu(desc->l3l4_flags);
540 		u8 l3_prot = (u8)((flags & IWL_RX_L3L4_L3_PROTO_MASK) >>
541 				  IWL_RX_L3_PROTO_POS);
542 
543 		mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
544 
545 		if (mvmvif->features & NETIF_F_RXCSUM &&
546 		    flags & IWL_RX_L3L4_TCP_UDP_CSUM_OK &&
547 		    (flags & IWL_RX_L3L4_IP_HDR_CSUM_OK ||
548 		     l3_prot == IWL_RX_L3_TYPE_IPV6 ||
549 		     l3_prot == IWL_RX_L3_TYPE_IPV6_FRAG))
550 			skb->ip_summed = CHECKSUM_UNNECESSARY;
551 	}
552 }
553 
554 /*
555  * returns true if a packet is a duplicate or invalid tid and should be dropped.
556  * Updates AMSDU PN tracking info
557  */
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)558 static bool iwl_mvm_is_dup(struct ieee80211_sta *sta, int queue,
559 			   struct ieee80211_rx_status *rx_status,
560 			   struct ieee80211_hdr *hdr,
561 			   struct iwl_rx_mpdu_desc *desc)
562 {
563 	struct iwl_mvm_sta *mvm_sta;
564 	struct iwl_mvm_rxq_dup_data *dup_data;
565 	u8 tid, sub_frame_idx;
566 
567 	if (WARN_ON(IS_ERR_OR_NULL(sta)))
568 		return false;
569 
570 	mvm_sta = iwl_mvm_sta_from_mac80211(sta);
571 
572 	if (WARN_ON_ONCE(!mvm_sta->dup_data))
573 		return false;
574 
575 	dup_data = &mvm_sta->dup_data[queue];
576 
577 	/*
578 	 * Drop duplicate 802.11 retransmissions
579 	 * (IEEE 802.11-2012: 9.3.2.10 "Duplicate detection and recovery")
580 	 */
581 	if (ieee80211_is_ctl(hdr->frame_control) ||
582 	    ieee80211_is_any_nullfunc(hdr->frame_control) ||
583 	    is_multicast_ether_addr(hdr->addr1))
584 		return false;
585 
586 	if (ieee80211_is_data_qos(hdr->frame_control)) {
587 		/* frame has qos control */
588 		tid = ieee80211_get_tid(hdr);
589 		if (tid >= IWL_MAX_TID_COUNT)
590 			return true;
591 	} else {
592 		tid = IWL_MAX_TID_COUNT;
593 	}
594 
595 	/* If this wasn't a part of an A-MSDU the sub-frame index will be 0 */
596 	sub_frame_idx = desc->amsdu_info &
597 		IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK;
598 
599 	if (unlikely(ieee80211_has_retry(hdr->frame_control) &&
600 		     dup_data->last_seq[tid] == hdr->seq_ctrl &&
601 		     dup_data->last_sub_frame[tid] >= sub_frame_idx))
602 		return true;
603 
604 	/* Allow same PN as the first subframe for following sub frames */
605 	if (dup_data->last_seq[tid] == hdr->seq_ctrl &&
606 	    sub_frame_idx > dup_data->last_sub_frame[tid] &&
607 	    desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU)
608 		rx_status->flag |= RX_FLAG_ALLOW_SAME_PN;
609 
610 	dup_data->last_seq[tid] = hdr->seq_ctrl;
611 	dup_data->last_sub_frame[tid] = sub_frame_idx;
612 
613 	rx_status->flag |= RX_FLAG_DUP_VALIDATED;
614 
615 	return false;
616 }
617 
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)618 static void iwl_mvm_release_frames(struct iwl_mvm *mvm,
619 				   struct ieee80211_sta *sta,
620 				   struct napi_struct *napi,
621 				   struct iwl_mvm_baid_data *baid_data,
622 				   struct iwl_mvm_reorder_buffer *reorder_buf,
623 				   u16 nssn)
624 {
625 	struct iwl_mvm_reorder_buf_entry *entries =
626 		&baid_data->entries[reorder_buf->queue *
627 				    baid_data->entries_per_queue];
628 	u16 ssn = reorder_buf->head_sn;
629 
630 	lockdep_assert_held(&reorder_buf->lock);
631 
632 	while (ieee80211_sn_less(ssn, nssn)) {
633 		int index = ssn % baid_data->buf_size;
634 		struct sk_buff_head *skb_list = &entries[index].frames;
635 		struct sk_buff *skb;
636 
637 		ssn = ieee80211_sn_inc(ssn);
638 
639 		/*
640 		 * Empty the list. Will have more than one frame for A-MSDU.
641 		 * Empty list is valid as well since nssn indicates frames were
642 		 * received.
643 		 */
644 		while ((skb = __skb_dequeue(skb_list))) {
645 			iwl_mvm_pass_packet_to_mac80211(mvm, napi, skb,
646 							reorder_buf->queue,
647 							sta);
648 			reorder_buf->num_stored--;
649 		}
650 	}
651 	reorder_buf->head_sn = nssn;
652 }
653 
iwl_mvm_del_ba(struct iwl_mvm * mvm,int queue,struct iwl_mvm_delba_data * data)654 static void iwl_mvm_del_ba(struct iwl_mvm *mvm, int queue,
655 			   struct iwl_mvm_delba_data *data)
656 {
657 	struct iwl_mvm_baid_data *ba_data;
658 	struct ieee80211_sta *sta;
659 	struct iwl_mvm_reorder_buffer *reorder_buf;
660 	u8 baid = data->baid;
661 	u32 sta_id;
662 
663 	if (WARN_ONCE(baid >= IWL_MAX_BAID, "invalid BAID: %x\n", baid))
664 		return;
665 
666 	rcu_read_lock();
667 
668 	ba_data = rcu_dereference(mvm->baid_map[baid]);
669 	if (WARN_ON_ONCE(!ba_data))
670 		goto out;
671 
672 	/* pick any STA ID to find the pointer */
673 	sta_id = ffs(ba_data->sta_mask) - 1;
674 	sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
675 	if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta)))
676 		goto out;
677 
678 	reorder_buf = &ba_data->reorder_buf[queue];
679 
680 	/* release all frames that are in the reorder buffer to the stack */
681 	spin_lock_bh(&reorder_buf->lock);
682 	iwl_mvm_release_frames(mvm, sta, NULL, ba_data, reorder_buf,
683 			       ieee80211_sn_add(reorder_buf->head_sn,
684 						ba_data->buf_size));
685 	spin_unlock_bh(&reorder_buf->lock);
686 
687 out:
688 	rcu_read_unlock();
689 }
690 
iwl_mvm_release_frames_from_notif(struct iwl_mvm * mvm,struct napi_struct * napi,u8 baid,u16 nssn,int queue)691 static void iwl_mvm_release_frames_from_notif(struct iwl_mvm *mvm,
692 					      struct napi_struct *napi,
693 					      u8 baid, u16 nssn, int queue)
694 {
695 	struct ieee80211_sta *sta;
696 	struct iwl_mvm_reorder_buffer *reorder_buf;
697 	struct iwl_mvm_baid_data *ba_data;
698 	u32 sta_id;
699 
700 	IWL_DEBUG_HT(mvm, "Frame release notification for BAID %u, NSSN %d\n",
701 		     baid, nssn);
702 
703 	if (IWL_FW_CHECK(mvm,
704 			 baid == IWL_RX_REORDER_DATA_INVALID_BAID ||
705 			 baid >= ARRAY_SIZE(mvm->baid_map),
706 			 "invalid BAID from FW: %d\n", baid))
707 		return;
708 
709 	rcu_read_lock();
710 
711 	ba_data = rcu_dereference(mvm->baid_map[baid]);
712 	if (!ba_data) {
713 		IWL_DEBUG_RX(mvm,
714 			     "Got valid BAID %d but not allocated, invalid frame release!\n",
715 			     baid);
716 		goto out;
717 	}
718 
719 	/* pick any STA ID to find the pointer */
720 	sta_id = ffs(ba_data->sta_mask) - 1;
721 	sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
722 	if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta)))
723 		goto out;
724 
725 	reorder_buf = &ba_data->reorder_buf[queue];
726 
727 	spin_lock_bh(&reorder_buf->lock);
728 	iwl_mvm_release_frames(mvm, sta, napi, ba_data,
729 			       reorder_buf, nssn);
730 	spin_unlock_bh(&reorder_buf->lock);
731 
732 out:
733 	rcu_read_unlock();
734 }
735 
iwl_mvm_rx_queue_notif(struct iwl_mvm * mvm,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb,int queue)736 void iwl_mvm_rx_queue_notif(struct iwl_mvm *mvm, struct napi_struct *napi,
737 			    struct iwl_rx_cmd_buffer *rxb, int queue)
738 {
739 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
740 	struct iwl_rxq_sync_notification *notif;
741 	struct iwl_mvm_internal_rxq_notif *internal_notif;
742 	u32 len = iwl_rx_packet_payload_len(pkt);
743 
744 	notif = (void *)pkt->data;
745 	internal_notif = (void *)notif->payload;
746 
747 	if (WARN_ONCE(len < sizeof(*notif) + sizeof(*internal_notif),
748 		      "invalid notification size %d (%d)",
749 		      len, (int)(sizeof(*notif) + sizeof(*internal_notif))))
750 		return;
751 	len -= sizeof(*notif) + sizeof(*internal_notif);
752 
753 	if (WARN_ONCE(internal_notif->sync &&
754 		      mvm->queue_sync_cookie != internal_notif->cookie,
755 		      "Received expired RX queue sync message (cookie %d but wanted %d, queue %d)\n",
756 		      internal_notif->cookie, mvm->queue_sync_cookie, queue))
757 		return;
758 
759 	switch (internal_notif->type) {
760 	case IWL_MVM_RXQ_EMPTY:
761 		WARN_ONCE(len, "invalid empty notification size %d", len);
762 		break;
763 	case IWL_MVM_RXQ_NOTIF_DEL_BA:
764 		if (WARN_ONCE(len != sizeof(struct iwl_mvm_delba_data),
765 			      "invalid delba notification size %d (%d)",
766 			      len, (int)sizeof(struct iwl_mvm_delba_data)))
767 			break;
768 		iwl_mvm_del_ba(mvm, queue, (void *)internal_notif->data);
769 		break;
770 	default:
771 		WARN_ONCE(1, "Invalid identifier %d", internal_notif->type);
772 	}
773 
774 	if (internal_notif->sync) {
775 		WARN_ONCE(!test_and_clear_bit(queue, &mvm->queue_sync_state),
776 			  "queue sync: queue %d responded a second time!\n",
777 			  queue);
778 		if (READ_ONCE(mvm->queue_sync_state) == 0)
779 			wake_up(&mvm->rx_sync_waitq);
780 	}
781 }
782 
783 /*
784  * Returns true if the MPDU was buffered\dropped, false if it should be passed
785  * to upper layer.
786  */
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)787 static bool iwl_mvm_reorder(struct iwl_mvm *mvm,
788 			    struct napi_struct *napi,
789 			    int queue,
790 			    struct ieee80211_sta *sta,
791 			    struct sk_buff *skb,
792 			    struct iwl_rx_mpdu_desc *desc)
793 {
794 	struct ieee80211_hdr *hdr = (void *)skb_mac_header(skb);
795 	struct iwl_mvm_baid_data *baid_data;
796 	struct iwl_mvm_reorder_buffer *buffer;
797 	u32 reorder = le32_to_cpu(desc->reorder_data);
798 	bool amsdu = desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU;
799 	bool last_subframe =
800 		desc->amsdu_info & IWL_RX_MPDU_AMSDU_LAST_SUBFRAME;
801 #if defined(__linux__)
802 	u8 tid = ieee80211_get_tid(hdr);
803 #elif defined(__FreeBSD__)
804 	u8 tid;
805 #endif
806 	struct iwl_mvm_reorder_buf_entry *entries;
807 	u32 sta_mask;
808 	int index;
809 	u16 nssn, sn;
810 	u8 baid;
811 
812 	baid = (reorder & IWL_RX_MPDU_REORDER_BAID_MASK) >>
813 		IWL_RX_MPDU_REORDER_BAID_SHIFT;
814 
815 	if (mvm->trans->mac_cfg->device_family == IWL_DEVICE_FAMILY_9000)
816 		return false;
817 
818 	/*
819 	 * This also covers the case of receiving a Block Ack Request
820 	 * outside a BA session; we'll pass it to mac80211 and that
821 	 * then sends a delBA action frame.
822 	 * This also covers pure monitor mode, in which case we won't
823 	 * have any BA sessions.
824 	 */
825 	if (baid == IWL_RX_REORDER_DATA_INVALID_BAID)
826 		return false;
827 
828 	/* no sta yet */
829 	if (WARN_ONCE(IS_ERR_OR_NULL(sta),
830 		      "Got valid BAID without a valid station assigned\n"))
831 		return false;
832 
833 	/* not a data packet or a bar */
834 	if (!ieee80211_is_back_req(hdr->frame_control) &&
835 	    (!ieee80211_is_data_qos(hdr->frame_control) ||
836 	     is_multicast_ether_addr(hdr->addr1)))
837 		return false;
838 
839 	if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
840 		return false;
841 
842 	baid_data = rcu_dereference(mvm->baid_map[baid]);
843 	if (!baid_data) {
844 		IWL_DEBUG_RX(mvm,
845 			     "Got valid BAID but no baid allocated, bypass the re-ordering buffer. Baid %d reorder 0x%x\n",
846 			      baid, reorder);
847 		return false;
848 	}
849 
850 #if defined(__FreeBSD__)
851 	tid = ieee80211_get_tid(hdr);
852 #endif
853 	sta_mask = iwl_mvm_sta_fw_id_mask(mvm, sta, -1);
854 
855 	if (IWL_FW_CHECK(mvm,
856 			 tid != baid_data->tid ||
857 			 !(sta_mask & baid_data->sta_mask),
858 			 "baid 0x%x is mapped to sta_mask:0x%x tid:%d, but was received for sta_mask:0x%x tid:%d\n",
859 			 baid, baid_data->sta_mask, baid_data->tid,
860 			 sta_mask, tid))
861 		return false;
862 
863 	nssn = reorder & IWL_RX_MPDU_REORDER_NSSN_MASK;
864 	sn = (reorder & IWL_RX_MPDU_REORDER_SN_MASK) >>
865 		IWL_RX_MPDU_REORDER_SN_SHIFT;
866 
867 	buffer = &baid_data->reorder_buf[queue];
868 	entries = &baid_data->entries[queue * baid_data->entries_per_queue];
869 
870 	spin_lock_bh(&buffer->lock);
871 
872 	if (!buffer->valid) {
873 		if (reorder & IWL_RX_MPDU_REORDER_BA_OLD_SN) {
874 			spin_unlock_bh(&buffer->lock);
875 			return false;
876 		}
877 		buffer->valid = true;
878 	}
879 
880 	/* drop any duplicated packets */
881 	if (desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_DUPLICATE))
882 		goto drop;
883 
884 	/* drop any oudated packets */
885 	if (reorder & IWL_RX_MPDU_REORDER_BA_OLD_SN)
886 		goto drop;
887 
888 	/* release immediately if allowed by nssn and no stored frames */
889 	if (!buffer->num_stored && ieee80211_sn_less(sn, nssn)) {
890 		if (!amsdu || last_subframe)
891 			buffer->head_sn = nssn;
892 
893 		spin_unlock_bh(&buffer->lock);
894 		return false;
895 	}
896 
897 	/*
898 	 * release immediately if there are no stored frames, and the sn is
899 	 * equal to the head.
900 	 * This can happen due to reorder timer, where NSSN is behind head_sn.
901 	 * When we released everything, and we got the next frame in the
902 	 * sequence, according to the NSSN we can't release immediately,
903 	 * while technically there is no hole and we can move forward.
904 	 */
905 	if (!buffer->num_stored && sn == buffer->head_sn) {
906 		if (!amsdu || last_subframe)
907 			buffer->head_sn = ieee80211_sn_inc(buffer->head_sn);
908 
909 		spin_unlock_bh(&buffer->lock);
910 		return false;
911 	}
912 
913 	/* put in reorder buffer */
914 	index = sn % baid_data->buf_size;
915 	__skb_queue_tail(&entries[index].frames, skb);
916 	buffer->num_stored++;
917 
918 	/*
919 	 * We cannot trust NSSN for AMSDU sub-frames that are not the last.
920 	 * The reason is that NSSN advances on the first sub-frame, and may
921 	 * cause the reorder buffer to advance before all the sub-frames arrive.
922 	 * Example: reorder buffer contains SN 0 & 2, and we receive AMSDU with
923 	 * SN 1. NSSN for first sub frame will be 3 with the result of driver
924 	 * releasing SN 0,1, 2. When sub-frame 1 arrives - reorder buffer is
925 	 * already ahead and it will be dropped.
926 	 * If the last sub-frame is not on this queue - we will get frame
927 	 * release notification with up to date NSSN.
928 	 * If this is the first frame that is stored in the buffer, the head_sn
929 	 * may be outdated. Update it based on the last NSSN to make sure it
930 	 * will be released when the frame release notification arrives.
931 	 */
932 	if (!amsdu || last_subframe)
933 		iwl_mvm_release_frames(mvm, sta, napi, baid_data,
934 				       buffer, nssn);
935 	else if (buffer->num_stored == 1)
936 		buffer->head_sn = nssn;
937 
938 	spin_unlock_bh(&buffer->lock);
939 	return true;
940 
941 drop:
942 	kfree_skb(skb);
943 	spin_unlock_bh(&buffer->lock);
944 	return true;
945 }
946 
iwl_mvm_agg_rx_received(struct iwl_mvm * mvm,u32 reorder_data,u8 baid)947 static void iwl_mvm_agg_rx_received(struct iwl_mvm *mvm,
948 				    u32 reorder_data, u8 baid)
949 {
950 	unsigned long now = jiffies;
951 	unsigned long timeout;
952 	struct iwl_mvm_baid_data *data;
953 
954 	rcu_read_lock();
955 
956 	data = rcu_dereference(mvm->baid_map[baid]);
957 	if (!data) {
958 		IWL_DEBUG_RX(mvm,
959 			     "Got valid BAID but no baid allocated, bypass the re-ordering buffer. Baid %d reorder 0x%x\n",
960 			      baid, reorder_data);
961 		goto out;
962 	}
963 
964 	if (!data->timeout)
965 		goto out;
966 
967 	timeout = data->timeout;
968 	/*
969 	 * Do not update last rx all the time to avoid cache bouncing
970 	 * between the rx queues.
971 	 * Update it every timeout. Worst case is the session will
972 	 * expire after ~ 2 * timeout, which doesn't matter that much.
973 	 */
974 	if (time_before(data->last_rx + TU_TO_JIFFIES(timeout), now))
975 		/* Update is atomic */
976 		data->last_rx = now;
977 
978 out:
979 	rcu_read_unlock();
980 }
981 
iwl_mvm_flip_address(u8 * addr)982 static void iwl_mvm_flip_address(u8 *addr)
983 {
984 	int i;
985 	u8 mac_addr[ETH_ALEN];
986 
987 	for (i = 0; i < ETH_ALEN; i++)
988 		mac_addr[i] = addr[ETH_ALEN - i - 1];
989 	ether_addr_copy(addr, mac_addr);
990 }
991 
992 struct iwl_mvm_rx_phy_data {
993 	enum iwl_rx_phy_info_type info_type;
994 	__le32 d0, d1, d2, d3, eht_d4, d5;
995 	__le16 d4;
996 	bool with_data;
997 	bool first_subframe;
998 	__le32 rx_vec[4];
999 
1000 	u32 rate_n_flags;
1001 	u32 gp2_on_air_rise;
1002 	u16 phy_info;
1003 	u8 energy_a, energy_b;
1004 	u8 channel;
1005 };
1006 
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)1007 static void iwl_mvm_decode_he_mu_ext(struct iwl_mvm *mvm,
1008 				     struct iwl_mvm_rx_phy_data *phy_data,
1009 				     struct ieee80211_radiotap_he_mu *he_mu)
1010 {
1011 	u32 phy_data2 = le32_to_cpu(phy_data->d2);
1012 	u32 phy_data3 = le32_to_cpu(phy_data->d3);
1013 	u16 phy_data4 = le16_to_cpu(phy_data->d4);
1014 	u32 rate_n_flags = phy_data->rate_n_flags;
1015 
1016 	if (FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH1_CRC_OK, phy_data4)) {
1017 		he_mu->flags1 |=
1018 			cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_RU_KNOWN |
1019 				    IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_CTR_26T_RU_KNOWN);
1020 
1021 		he_mu->flags1 |=
1022 			le16_encode_bits(FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH1_CTR_RU,
1023 						   phy_data4),
1024 					 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_CTR_26T_RU);
1025 
1026 		he_mu->ru_ch1[0] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH1_RU0,
1027 					     phy_data2);
1028 		he_mu->ru_ch1[1] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH1_RU1,
1029 					     phy_data3);
1030 		he_mu->ru_ch1[2] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH1_RU2,
1031 					     phy_data2);
1032 		he_mu->ru_ch1[3] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH1_RU3,
1033 					     phy_data3);
1034 	}
1035 
1036 	if (FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH2_CRC_OK, phy_data4) &&
1037 	    (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK_V1) != RATE_MCS_CHAN_WIDTH_20) {
1038 		he_mu->flags1 |=
1039 			cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH2_RU_KNOWN |
1040 				    IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH2_CTR_26T_RU_KNOWN);
1041 
1042 		he_mu->flags2 |=
1043 			le16_encode_bits(FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH2_CTR_RU,
1044 						   phy_data4),
1045 					 IEEE80211_RADIOTAP_HE_MU_FLAGS2_CH2_CTR_26T_RU);
1046 
1047 		he_mu->ru_ch2[0] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH2_RU0,
1048 					     phy_data2);
1049 		he_mu->ru_ch2[1] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH2_RU1,
1050 					     phy_data3);
1051 		he_mu->ru_ch2[2] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH2_RU2,
1052 					     phy_data2);
1053 		he_mu->ru_ch2[3] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH2_RU3,
1054 					     phy_data3);
1055 	}
1056 }
1057 
1058 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)1059 iwl_mvm_decode_he_phy_ru_alloc(struct iwl_mvm_rx_phy_data *phy_data,
1060 			       struct ieee80211_radiotap_he *he,
1061 			       struct ieee80211_radiotap_he_mu *he_mu,
1062 			       struct ieee80211_rx_status *rx_status)
1063 {
1064 	/*
1065 	 * Unfortunately, we have to leave the mac80211 data
1066 	 * incorrect for the case that we receive an HE-MU
1067 	 * transmission and *don't* have the HE phy data (due
1068 	 * to the bits being used for TSF). This shouldn't
1069 	 * happen though as management frames where we need
1070 	 * the TSF/timers are not be transmitted in HE-MU.
1071 	 */
1072 	u8 ru = le32_get_bits(phy_data->d1, IWL_RX_PHY_DATA1_HE_RU_ALLOC_MASK);
1073 	u32 rate_n_flags = phy_data->rate_n_flags;
1074 	u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK;
1075 	u8 offs = 0;
1076 
1077 	rx_status->bw = RATE_INFO_BW_HE_RU;
1078 
1079 	he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN);
1080 
1081 	switch (ru) {
1082 	case 0 ... 36:
1083 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_26;
1084 		offs = ru;
1085 		break;
1086 	case 37 ... 52:
1087 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_52;
1088 		offs = ru - 37;
1089 		break;
1090 	case 53 ... 60:
1091 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106;
1092 		offs = ru - 53;
1093 		break;
1094 	case 61 ... 64:
1095 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_242;
1096 		offs = ru - 61;
1097 		break;
1098 	case 65 ... 66:
1099 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_484;
1100 		offs = ru - 65;
1101 		break;
1102 	case 67:
1103 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_996;
1104 		break;
1105 	case 68:
1106 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_2x996;
1107 		break;
1108 	}
1109 	he->data2 |= le16_encode_bits(offs,
1110 				      IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET);
1111 	he->data2 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_KNOWN |
1112 				 IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET_KNOWN);
1113 	if (phy_data->d1 & cpu_to_le32(IWL_RX_PHY_DATA1_HE_RU_ALLOC_SEC80))
1114 		he->data2 |=
1115 			cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_SEC);
1116 
1117 #define CHECK_BW(bw) \
1118 	BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_ ## bw ## MHZ != \
1119 		     RATE_MCS_CHAN_WIDTH_##bw >> RATE_MCS_CHAN_WIDTH_POS); \
1120 	BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA6_TB_PPDU_BW_ ## bw ## MHZ != \
1121 		     RATE_MCS_CHAN_WIDTH_##bw >> RATE_MCS_CHAN_WIDTH_POS)
1122 	CHECK_BW(20);
1123 	CHECK_BW(40);
1124 	CHECK_BW(80);
1125 	CHECK_BW(160);
1126 
1127 	if (he_mu)
1128 		he_mu->flags2 |=
1129 			le16_encode_bits(FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK,
1130 						   rate_n_flags),
1131 					 IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW);
1132 	else if (he_type == RATE_MCS_HE_TYPE_TRIG)
1133 		he->data6 |=
1134 			cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA6_TB_PPDU_BW_KNOWN) |
1135 			le16_encode_bits(FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK,
1136 						   rate_n_flags),
1137 					 IEEE80211_RADIOTAP_HE_DATA6_TB_PPDU_BW);
1138 }
1139 
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)1140 static void iwl_mvm_decode_he_phy_data(struct iwl_mvm *mvm,
1141 				       struct iwl_mvm_rx_phy_data *phy_data,
1142 				       struct ieee80211_radiotap_he *he,
1143 				       struct ieee80211_radiotap_he_mu *he_mu,
1144 				       struct ieee80211_rx_status *rx_status,
1145 				       int queue)
1146 {
1147 	switch (phy_data->info_type) {
1148 	case IWL_RX_PHY_INFO_TYPE_NONE:
1149 	case IWL_RX_PHY_INFO_TYPE_CCK:
1150 	case IWL_RX_PHY_INFO_TYPE_OFDM_LGCY:
1151 	case IWL_RX_PHY_INFO_TYPE_HT:
1152 	case IWL_RX_PHY_INFO_TYPE_VHT_SU:
1153 	case IWL_RX_PHY_INFO_TYPE_VHT_MU:
1154 	case IWL_RX_PHY_INFO_TYPE_EHT_MU:
1155 	case IWL_RX_PHY_INFO_TYPE_EHT_TB:
1156 	case IWL_RX_PHY_INFO_TYPE_EHT_MU_EXT:
1157 	case IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT:
1158 		return;
1159 	case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:
1160 		he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE_KNOWN |
1161 					 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE2_KNOWN |
1162 					 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE3_KNOWN |
1163 					 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE4_KNOWN);
1164 		he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,
1165 							    IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE1),
1166 					      IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE1);
1167 		he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,
1168 							    IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE2),
1169 					      IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE2);
1170 		he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,
1171 							    IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE3),
1172 					      IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE3);
1173 		he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,
1174 							    IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE4),
1175 					      IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE4);
1176 		fallthrough;
1177 	case IWL_RX_PHY_INFO_TYPE_HE_SU:
1178 	case IWL_RX_PHY_INFO_TYPE_HE_MU:
1179 	case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
1180 	case IWL_RX_PHY_INFO_TYPE_HE_TB:
1181 		/* HE common */
1182 		he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_LDPC_XSYMSEG_KNOWN |
1183 					 IEEE80211_RADIOTAP_HE_DATA1_DOPPLER_KNOWN |
1184 					 IEEE80211_RADIOTAP_HE_DATA1_BSS_COLOR_KNOWN);
1185 		he->data2 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRE_FEC_PAD_KNOWN |
1186 					 IEEE80211_RADIOTAP_HE_DATA2_PE_DISAMBIG_KNOWN |
1187 					 IEEE80211_RADIOTAP_HE_DATA2_TXOP_KNOWN |
1188 					 IEEE80211_RADIOTAP_HE_DATA2_NUM_LTF_SYMS_KNOWN);
1189 		he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1190 							    IWL_RX_PHY_DATA0_HE_BSS_COLOR_MASK),
1191 					      IEEE80211_RADIOTAP_HE_DATA3_BSS_COLOR);
1192 		if (phy_data->info_type != IWL_RX_PHY_INFO_TYPE_HE_TB &&
1193 		    phy_data->info_type != IWL_RX_PHY_INFO_TYPE_HE_TB_EXT) {
1194 			he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_UL_DL_KNOWN);
1195 			he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1196 							    IWL_RX_PHY_DATA0_HE_UPLINK),
1197 						      IEEE80211_RADIOTAP_HE_DATA3_UL_DL);
1198 		}
1199 		he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1200 							    IWL_RX_PHY_DATA0_HE_LDPC_EXT_SYM),
1201 					      IEEE80211_RADIOTAP_HE_DATA3_LDPC_XSYMSEG);
1202 		he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1203 							    IWL_RX_PHY_DATA0_HE_PRE_FEC_PAD_MASK),
1204 					      IEEE80211_RADIOTAP_HE_DATA5_PRE_FEC_PAD);
1205 		he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1206 							    IWL_RX_PHY_DATA0_HE_PE_DISAMBIG),
1207 					      IEEE80211_RADIOTAP_HE_DATA5_PE_DISAMBIG);
1208 		he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d1,
1209 							    IWL_RX_PHY_DATA1_HE_LTF_NUM_MASK),
1210 					      IEEE80211_RADIOTAP_HE_DATA5_NUM_LTF_SYMS);
1211 		he->data6 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1212 							    IWL_RX_PHY_DATA0_HE_TXOP_DUR_MASK),
1213 					      IEEE80211_RADIOTAP_HE_DATA6_TXOP);
1214 		he->data6 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1215 							    IWL_RX_PHY_DATA0_HE_DOPPLER),
1216 					      IEEE80211_RADIOTAP_HE_DATA6_DOPPLER);
1217 		break;
1218 	}
1219 
1220 	switch (phy_data->info_type) {
1221 	case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
1222 	case IWL_RX_PHY_INFO_TYPE_HE_MU:
1223 	case IWL_RX_PHY_INFO_TYPE_HE_SU:
1224 		he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE_KNOWN);
1225 		he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1226 							    IWL_RX_PHY_DATA0_HE_SPATIAL_REUSE_MASK),
1227 					      IEEE80211_RADIOTAP_HE_DATA4_SU_MU_SPTL_REUSE);
1228 		break;
1229 	default:
1230 		/* nothing here */
1231 		break;
1232 	}
1233 
1234 	switch (phy_data->info_type) {
1235 	case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
1236 		he_mu->flags1 |=
1237 			le16_encode_bits(le16_get_bits(phy_data->d4,
1238 						       IWL_RX_PHY_DATA4_HE_MU_EXT_SIGB_DCM),
1239 					 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM);
1240 		he_mu->flags1 |=
1241 			le16_encode_bits(le16_get_bits(phy_data->d4,
1242 						       IWL_RX_PHY_DATA4_HE_MU_EXT_SIGB_MCS_MASK),
1243 					 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS);
1244 		he_mu->flags2 |=
1245 			le16_encode_bits(le16_get_bits(phy_data->d4,
1246 						       IWL_RX_PHY_DATA4_HE_MU_EXT_PREAMBLE_PUNC_TYPE_MASK),
1247 					 IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW);
1248 		iwl_mvm_decode_he_mu_ext(mvm, phy_data, he_mu);
1249 		fallthrough;
1250 	case IWL_RX_PHY_INFO_TYPE_HE_MU:
1251 		he_mu->flags2 |=
1252 			le16_encode_bits(le32_get_bits(phy_data->d1,
1253 						       IWL_RX_PHY_DATA1_HE_MU_SIBG_SYM_OR_USER_NUM_MASK),
1254 					 IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_SYMS_USERS);
1255 		he_mu->flags2 |=
1256 			le16_encode_bits(le32_get_bits(phy_data->d1,
1257 						       IWL_RX_PHY_DATA1_HE_MU_SIGB_COMPRESSION),
1258 					 IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_COMP);
1259 		fallthrough;
1260 	case IWL_RX_PHY_INFO_TYPE_HE_TB:
1261 	case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:
1262 		iwl_mvm_decode_he_phy_ru_alloc(phy_data, he, he_mu, rx_status);
1263 		break;
1264 	case IWL_RX_PHY_INFO_TYPE_HE_SU:
1265 		he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BEAM_CHANGE_KNOWN);
1266 		he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1267 							    IWL_RX_PHY_DATA0_HE_BEAM_CHNG),
1268 					      IEEE80211_RADIOTAP_HE_DATA3_BEAM_CHANGE);
1269 		break;
1270 	default:
1271 		/* nothing */
1272 		break;
1273 	}
1274 }
1275 
1276 #define LE32_DEC_ENC(value, dec_bits, enc_bits) \
1277 	le32_encode_bits(le32_get_bits(value, dec_bits), enc_bits)
1278 
1279 #define IWL_MVM_ENC_USIG_VALUE_MASK(usig, in_value, dec_bits, enc_bits) do { \
1280 	typeof(enc_bits) _enc_bits = enc_bits; \
1281 	typeof(usig) _usig = usig; \
1282 	(_usig)->mask |= cpu_to_le32(_enc_bits); \
1283 	(_usig)->value |= LE32_DEC_ENC(in_value, dec_bits, _enc_bits); \
1284 } while (0)
1285 
1286 #define __IWL_MVM_ENC_EHT_RU(rt_data, rt_ru, fw_data, fw_ru) \
1287 	eht->data[(rt_data)] |= \
1288 		(cpu_to_le32 \
1289 		 (IEEE80211_RADIOTAP_EHT_DATA ## rt_data ## _RU_ALLOC_CC_ ## rt_ru ## _KNOWN) | \
1290 		 LE32_DEC_ENC(data ## fw_data, \
1291 			      IWL_RX_PHY_DATA ## fw_data ## _EHT_MU_EXT_RU_ALLOC_ ## fw_ru, \
1292 			      IEEE80211_RADIOTAP_EHT_DATA ## rt_data ## _RU_ALLOC_CC_ ## rt_ru))
1293 
1294 #define _IWL_MVM_ENC_EHT_RU(rt_data, rt_ru, fw_data, fw_ru)	\
1295 	__IWL_MVM_ENC_EHT_RU(rt_data, rt_ru, fw_data, fw_ru)
1296 
1297 #define IEEE80211_RADIOTAP_RU_DATA_1_1_1	1
1298 #define IEEE80211_RADIOTAP_RU_DATA_2_1_1	2
1299 #define IEEE80211_RADIOTAP_RU_DATA_1_1_2	2
1300 #define IEEE80211_RADIOTAP_RU_DATA_2_1_2	2
1301 #define IEEE80211_RADIOTAP_RU_DATA_1_2_1	3
1302 #define IEEE80211_RADIOTAP_RU_DATA_2_2_1	3
1303 #define IEEE80211_RADIOTAP_RU_DATA_1_2_2	3
1304 #define IEEE80211_RADIOTAP_RU_DATA_2_2_2	4
1305 
1306 #define IWL_RX_RU_DATA_A1			2
1307 #define IWL_RX_RU_DATA_A2			2
1308 #define IWL_RX_RU_DATA_B1			2
1309 #define IWL_RX_RU_DATA_B2			4
1310 #define IWL_RX_RU_DATA_C1			3
1311 #define IWL_RX_RU_DATA_C2			3
1312 #define IWL_RX_RU_DATA_D1			4
1313 #define IWL_RX_RU_DATA_D2			4
1314 
1315 #define IWL_MVM_ENC_EHT_RU(rt_ru, fw_ru)				\
1316 	_IWL_MVM_ENC_EHT_RU(IEEE80211_RADIOTAP_RU_DATA_ ## rt_ru,	\
1317 			    rt_ru,					\
1318 			    IWL_RX_RU_DATA_ ## fw_ru,			\
1319 			    fw_ru)
1320 
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)1321 static void iwl_mvm_decode_eht_ext_mu(struct iwl_mvm *mvm,
1322 				      struct iwl_mvm_rx_phy_data *phy_data,
1323 				      struct ieee80211_rx_status *rx_status,
1324 				      struct ieee80211_radiotap_eht *eht,
1325 				      struct ieee80211_radiotap_eht_usig *usig)
1326 {
1327 	if (phy_data->with_data) {
1328 		__le32 data1 = phy_data->d1;
1329 		__le32 data2 = phy_data->d2;
1330 		__le32 data3 = phy_data->d3;
1331 		__le32 data4 = phy_data->eht_d4;
1332 		__le32 data5 = phy_data->d5;
1333 		u32 phy_bw = phy_data->rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK;
1334 
1335 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5,
1336 					    IWL_RX_PHY_DATA5_EHT_TYPE_AND_COMP,
1337 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B0_B1_PPDU_TYPE);
1338 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5,
1339 					    IWL_RX_PHY_DATA5_EHT_MU_PUNC_CH_CODE,
1340 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B3_B7_PUNCTURED_INFO);
1341 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, data4,
1342 					    IWL_RX_PHY_DATA4_EHT_MU_EXT_SIGB_MCS,
1343 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B9_B10_SIG_MCS);
1344 		IWL_MVM_ENC_USIG_VALUE_MASK
1345 			(usig, data1, IWL_RX_PHY_DATA1_EHT_MU_NUM_SIG_SYM_USIGA2,
1346 			 IEEE80211_RADIOTAP_EHT_USIG2_MU_B11_B15_EHT_SIG_SYMBOLS);
1347 
1348 		eht->user_info[0] |=
1349 			cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_STA_ID_KNOWN) |
1350 			LE32_DEC_ENC(data5, IWL_RX_PHY_DATA5_EHT_MU_STA_ID_USR,
1351 				     IEEE80211_RADIOTAP_EHT_USER_INFO_STA_ID);
1352 
1353 		eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_NR_NON_OFDMA_USERS_M);
1354 		eht->data[7] |= LE32_DEC_ENC
1355 			(data5, IWL_RX_PHY_DATA5_EHT_MU_NUM_USR_NON_OFDMA,
1356 			 IEEE80211_RADIOTAP_EHT_DATA7_NUM_OF_NON_OFDMA_USERS);
1357 
1358 		/*
1359 		 * Hardware labels the content channels/RU allocation values
1360 		 * as follows:
1361 		 *           Content Channel 1		Content Channel 2
1362 		 *   20 MHz: A1
1363 		 *   40 MHz: A1				B1
1364 		 *   80 MHz: A1 C1			B1 D1
1365 		 *  160 MHz: A1 C1 A2 C2		B1 D1 B2 D2
1366 		 *  320 MHz: A1 C1 A2 C2 A3 C3 A4 C4	B1 D1 B2 D2 B3 D3 B4 D4
1367 		 *
1368 		 * However firmware can only give us A1-D2, so the higher
1369 		 * frequencies are missing.
1370 		 */
1371 
1372 		switch (phy_bw) {
1373 		case RATE_MCS_CHAN_WIDTH_320:
1374 			/* additional values are missing in RX metadata */
1375 		case RATE_MCS_CHAN_WIDTH_160:
1376 			/* content channel 1 */
1377 			IWL_MVM_ENC_EHT_RU(1_2_1, A2);
1378 			IWL_MVM_ENC_EHT_RU(1_2_2, C2);
1379 			/* content channel 2 */
1380 			IWL_MVM_ENC_EHT_RU(2_2_1, B2);
1381 			IWL_MVM_ENC_EHT_RU(2_2_2, D2);
1382 			fallthrough;
1383 		case RATE_MCS_CHAN_WIDTH_80:
1384 			/* content channel 1 */
1385 			IWL_MVM_ENC_EHT_RU(1_1_2, C1);
1386 			/* content channel 2 */
1387 			IWL_MVM_ENC_EHT_RU(2_1_2, D1);
1388 			fallthrough;
1389 		case RATE_MCS_CHAN_WIDTH_40:
1390 			/* content channel 2 */
1391 			IWL_MVM_ENC_EHT_RU(2_1_1, B1);
1392 			fallthrough;
1393 		case RATE_MCS_CHAN_WIDTH_20:
1394 			IWL_MVM_ENC_EHT_RU(1_1_1, A1);
1395 			break;
1396 		}
1397 	} else {
1398 		__le32 usig_a1 = phy_data->rx_vec[0];
1399 		__le32 usig_a2 = phy_data->rx_vec[1];
1400 
1401 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a1,
1402 					    IWL_RX_USIG_A1_DISREGARD,
1403 					    IEEE80211_RADIOTAP_EHT_USIG1_MU_B20_B24_DISREGARD);
1404 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a1,
1405 					    IWL_RX_USIG_A1_VALIDATE,
1406 					    IEEE80211_RADIOTAP_EHT_USIG1_MU_B25_VALIDATE);
1407 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1408 					    IWL_RX_USIG_A2_EHT_PPDU_TYPE,
1409 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B0_B1_PPDU_TYPE);
1410 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1411 					    IWL_RX_USIG_A2_EHT_USIG2_VALIDATE_B2,
1412 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B2_VALIDATE);
1413 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1414 					    IWL_RX_USIG_A2_EHT_PUNC_CHANNEL,
1415 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B3_B7_PUNCTURED_INFO);
1416 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1417 					    IWL_RX_USIG_A2_EHT_USIG2_VALIDATE_B8,
1418 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B8_VALIDATE);
1419 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1420 					    IWL_RX_USIG_A2_EHT_SIG_MCS,
1421 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B9_B10_SIG_MCS);
1422 		IWL_MVM_ENC_USIG_VALUE_MASK
1423 			(usig, usig_a2, IWL_RX_USIG_A2_EHT_SIG_SYM_NUM,
1424 			 IEEE80211_RADIOTAP_EHT_USIG2_MU_B11_B15_EHT_SIG_SYMBOLS);
1425 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1426 					    IWL_RX_USIG_A2_EHT_CRC_OK,
1427 					    IEEE80211_RADIOTAP_EHT_USIG2_MU_B16_B19_CRC);
1428 	}
1429 }
1430 
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)1431 static void iwl_mvm_decode_eht_ext_tb(struct iwl_mvm *mvm,
1432 				      struct iwl_mvm_rx_phy_data *phy_data,
1433 				      struct ieee80211_rx_status *rx_status,
1434 				      struct ieee80211_radiotap_eht *eht,
1435 				      struct ieee80211_radiotap_eht_usig *usig)
1436 {
1437 	if (phy_data->with_data) {
1438 		__le32 data5 = phy_data->d5;
1439 
1440 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5,
1441 					    IWL_RX_PHY_DATA5_EHT_TYPE_AND_COMP,
1442 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B0_B1_PPDU_TYPE);
1443 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5,
1444 					    IWL_RX_PHY_DATA5_EHT_TB_SPATIAL_REUSE1,
1445 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B3_B6_SPATIAL_REUSE_1);
1446 
1447 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, data5,
1448 					    IWL_RX_PHY_DATA5_EHT_TB_SPATIAL_REUSE2,
1449 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B7_B10_SPATIAL_REUSE_2);
1450 	} else {
1451 		__le32 usig_a1 = phy_data->rx_vec[0];
1452 		__le32 usig_a2 = phy_data->rx_vec[1];
1453 
1454 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a1,
1455 					    IWL_RX_USIG_A1_DISREGARD,
1456 					    IEEE80211_RADIOTAP_EHT_USIG1_TB_B20_B25_DISREGARD);
1457 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1458 					    IWL_RX_USIG_A2_EHT_PPDU_TYPE,
1459 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B0_B1_PPDU_TYPE);
1460 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1461 					    IWL_RX_USIG_A2_EHT_USIG2_VALIDATE_B2,
1462 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B2_VALIDATE);
1463 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1464 					    IWL_RX_USIG_A2_EHT_TRIG_SPATIAL_REUSE_1,
1465 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B3_B6_SPATIAL_REUSE_1);
1466 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1467 					    IWL_RX_USIG_A2_EHT_TRIG_SPATIAL_REUSE_2,
1468 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B7_B10_SPATIAL_REUSE_2);
1469 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1470 					    IWL_RX_USIG_A2_EHT_TRIG_USIG2_DISREGARD,
1471 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B11_B15_DISREGARD);
1472 		IWL_MVM_ENC_USIG_VALUE_MASK(usig, usig_a2,
1473 					    IWL_RX_USIG_A2_EHT_CRC_OK,
1474 					    IEEE80211_RADIOTAP_EHT_USIG2_TB_B16_B19_CRC);
1475 	}
1476 }
1477 
iwl_mvm_decode_eht_ru(struct iwl_mvm * mvm,struct ieee80211_rx_status * rx_status,struct ieee80211_radiotap_eht * eht)1478 static void iwl_mvm_decode_eht_ru(struct iwl_mvm *mvm,
1479 				  struct ieee80211_rx_status *rx_status,
1480 				  struct ieee80211_radiotap_eht *eht)
1481 {
1482 	u32 ru = le32_get_bits(eht->data[8],
1483 			       IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_B7_B1);
1484 	enum nl80211_eht_ru_alloc nl_ru;
1485 
1486 	/* Using D1.5 Table 9-53a - Encoding of PS160 and RU Allocation subfields
1487 	 * in an EHT variant User Info field
1488 	 */
1489 
1490 	switch (ru) {
1491 	case 0 ... 36:
1492 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_26;
1493 		break;
1494 	case 37 ... 52:
1495 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_52;
1496 		break;
1497 	case 53 ... 60:
1498 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_106;
1499 		break;
1500 	case 61 ... 64:
1501 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_242;
1502 		break;
1503 	case 65 ... 66:
1504 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_484;
1505 		break;
1506 	case 67:
1507 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_996;
1508 		break;
1509 	case 68:
1510 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_2x996;
1511 		break;
1512 	case 69:
1513 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_4x996;
1514 		break;
1515 	case 70 ... 81:
1516 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_52P26;
1517 		break;
1518 	case 82 ... 89:
1519 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_106P26;
1520 		break;
1521 	case 90 ... 93:
1522 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_484P242;
1523 		break;
1524 	case 94 ... 95:
1525 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_996P484;
1526 		break;
1527 	case 96 ... 99:
1528 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_996P484P242;
1529 		break;
1530 	case 100 ... 103:
1531 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_2x996P484;
1532 		break;
1533 	case 104:
1534 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_3x996;
1535 		break;
1536 	case 105 ... 106:
1537 		nl_ru = NL80211_RATE_INFO_EHT_RU_ALLOC_3x996P484;
1538 		break;
1539 	default:
1540 		return;
1541 	}
1542 
1543 	rx_status->bw = RATE_INFO_BW_EHT_RU;
1544 	rx_status->eht.ru = nl_ru;
1545 }
1546 
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)1547 static void iwl_mvm_decode_eht_phy_data(struct iwl_mvm *mvm,
1548 					struct iwl_mvm_rx_phy_data *phy_data,
1549 					struct ieee80211_rx_status *rx_status,
1550 					struct ieee80211_radiotap_eht *eht,
1551 					struct ieee80211_radiotap_eht_usig *usig)
1552 
1553 {
1554 	__le32 data0 = phy_data->d0;
1555 	__le32 data1 = phy_data->d1;
1556 	__le32 usig_a1 = phy_data->rx_vec[0];
1557 	u8 info_type = phy_data->info_type;
1558 
1559 	/* Not in EHT range */
1560 	if (info_type < IWL_RX_PHY_INFO_TYPE_EHT_MU ||
1561 	    info_type > IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT)
1562 		return;
1563 
1564 	usig->common |= cpu_to_le32
1565 		(IEEE80211_RADIOTAP_EHT_USIG_COMMON_UL_DL_KNOWN |
1566 		 IEEE80211_RADIOTAP_EHT_USIG_COMMON_BSS_COLOR_KNOWN);
1567 	if (phy_data->with_data) {
1568 		usig->common |= LE32_DEC_ENC(data0,
1569 					     IWL_RX_PHY_DATA0_EHT_UPLINK,
1570 					     IEEE80211_RADIOTAP_EHT_USIG_COMMON_UL_DL);
1571 		usig->common |= LE32_DEC_ENC(data0,
1572 					     IWL_RX_PHY_DATA0_EHT_BSS_COLOR_MASK,
1573 					     IEEE80211_RADIOTAP_EHT_USIG_COMMON_BSS_COLOR);
1574 	} else {
1575 		usig->common |= LE32_DEC_ENC(usig_a1,
1576 					     IWL_RX_USIG_A1_UL_FLAG,
1577 					     IEEE80211_RADIOTAP_EHT_USIG_COMMON_UL_DL);
1578 		usig->common |= LE32_DEC_ENC(usig_a1,
1579 					     IWL_RX_USIG_A1_BSS_COLOR,
1580 					     IEEE80211_RADIOTAP_EHT_USIG_COMMON_BSS_COLOR);
1581 	}
1582 
1583 	if (fw_has_capa(&mvm->fw->ucode_capa,
1584 			IWL_UCODE_TLV_CAPA_SNIFF_VALIDATE_SUPPORT)) {
1585 		usig->common |=
1586 			cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_VALIDATE_BITS_CHECKED);
1587 		usig->common |=
1588 			LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_VALIDATE,
1589 				     IEEE80211_RADIOTAP_EHT_USIG_COMMON_VALIDATE_BITS_OK);
1590 	}
1591 
1592 	eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_SPATIAL_REUSE);
1593 	eht->data[0] |= LE32_DEC_ENC(data0,
1594 				     IWL_RX_PHY_DATA0_ETH_SPATIAL_REUSE_MASK,
1595 				     IEEE80211_RADIOTAP_EHT_DATA0_SPATIAL_REUSE);
1596 
1597 	/* All RU allocating size/index is in TB format */
1598 	eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_RU_ALLOC_TB_FMT);
1599 	eht->data[8] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PS160,
1600 				     IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_PS_160);
1601 	eht->data[8] |= LE32_DEC_ENC(data1, IWL_RX_PHY_DATA1_EHT_RU_ALLOC_B0,
1602 				     IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_B0);
1603 	eht->data[8] |= LE32_DEC_ENC(data1, IWL_RX_PHY_DATA1_EHT_RU_ALLOC_B1_B7,
1604 				     IEEE80211_RADIOTAP_EHT_DATA8_RU_ALLOC_TB_FMT_B7_B1);
1605 
1606 	iwl_mvm_decode_eht_ru(mvm, rx_status, eht);
1607 
1608 	/* We only get here in case of IWL_RX_MPDU_PHY_TSF_OVERLOAD is set
1609 	 * which is on only in case of monitor mode so no need to check monitor
1610 	 * mode
1611 	 */
1612 	eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_PRIMARY_80);
1613 	eht->data[1] |=
1614 		le32_encode_bits(mvm->monitor_p80,
1615 				 IEEE80211_RADIOTAP_EHT_DATA1_PRIMARY_80);
1616 
1617 	usig->common |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_TXOP_KNOWN);
1618 	if (phy_data->with_data)
1619 		usig->common |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_TXOP_DUR_MASK,
1620 					     IEEE80211_RADIOTAP_EHT_USIG_COMMON_TXOP);
1621 	else
1622 		usig->common |= LE32_DEC_ENC(usig_a1, IWL_RX_USIG_A1_TXOP_DURATION,
1623 					     IEEE80211_RADIOTAP_EHT_USIG_COMMON_TXOP);
1624 
1625 	eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_LDPC_EXTRA_SYM_OM);
1626 	eht->data[0] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_LDPC_EXT_SYM,
1627 				     IEEE80211_RADIOTAP_EHT_DATA0_LDPC_EXTRA_SYM_OM);
1628 
1629 	eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_PRE_PADD_FACOR_OM);
1630 	eht->data[0] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PRE_FEC_PAD_MASK,
1631 				    IEEE80211_RADIOTAP_EHT_DATA0_PRE_PADD_FACOR_OM);
1632 
1633 	eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_PE_DISAMBIGUITY_OM);
1634 	eht->data[0] |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PE_DISAMBIG,
1635 				     IEEE80211_RADIOTAP_EHT_DATA0_PE_DISAMBIGUITY_OM);
1636 
1637 	/* TODO: what about IWL_RX_PHY_DATA0_EHT_BW320_SLOT */
1638 
1639 	if (!le32_get_bits(data0, IWL_RX_PHY_DATA0_EHT_SIGA_CRC_OK))
1640 		usig->common |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_BAD_USIG_CRC);
1641 
1642 	usig->common |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_PHY_VER_KNOWN);
1643 	usig->common |= LE32_DEC_ENC(data0, IWL_RX_PHY_DATA0_EHT_PHY_VER,
1644 				     IEEE80211_RADIOTAP_EHT_USIG_COMMON_PHY_VER);
1645 
1646 	/*
1647 	 * TODO: what about TB - IWL_RX_PHY_DATA1_EHT_TB_PILOT_TYPE,
1648 	 *			 IWL_RX_PHY_DATA1_EHT_TB_LOW_SS
1649 	 */
1650 
1651 	eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_EHT_LTF);
1652 	eht->data[0] |= LE32_DEC_ENC(data1, IWL_RX_PHY_DATA1_EHT_SIG_LTF_NUM,
1653 				     IEEE80211_RADIOTAP_EHT_DATA0_EHT_LTF);
1654 
1655 	if (info_type == IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT ||
1656 	    info_type == IWL_RX_PHY_INFO_TYPE_EHT_TB)
1657 		iwl_mvm_decode_eht_ext_tb(mvm, phy_data, rx_status, eht, usig);
1658 
1659 	if (info_type == IWL_RX_PHY_INFO_TYPE_EHT_MU_EXT ||
1660 	    info_type == IWL_RX_PHY_INFO_TYPE_EHT_MU)
1661 		iwl_mvm_decode_eht_ext_mu(mvm, phy_data, rx_status, eht, usig);
1662 }
1663 
iwl_mvm_rx_eht(struct iwl_mvm * mvm,struct sk_buff * skb,struct iwl_mvm_rx_phy_data * phy_data,int queue)1664 static void iwl_mvm_rx_eht(struct iwl_mvm *mvm, struct sk_buff *skb,
1665 			   struct iwl_mvm_rx_phy_data *phy_data,
1666 			   int queue)
1667 {
1668 	struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
1669 
1670 	struct ieee80211_radiotap_eht *eht;
1671 	struct ieee80211_radiotap_eht_usig *usig;
1672 	size_t eht_len = sizeof(*eht);
1673 
1674 	u32 rate_n_flags = phy_data->rate_n_flags;
1675 	u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK;
1676 	/* EHT and HE have the same valus for LTF */
1677 	u8 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_UNKNOWN;
1678 	u16 phy_info = phy_data->phy_info;
1679 	u32 bw;
1680 
1681 	/* u32 for 1 user_info */
1682 	if (phy_data->with_data)
1683 		eht_len += sizeof(u32);
1684 
1685 	eht = iwl_mvm_radiotap_put_tlv(skb, IEEE80211_RADIOTAP_EHT, eht_len);
1686 
1687 	usig = iwl_mvm_radiotap_put_tlv(skb, IEEE80211_RADIOTAP_EHT_USIG,
1688 					sizeof(*usig));
1689 	rx_status->flag |= RX_FLAG_RADIOTAP_TLV_AT_END;
1690 	usig->common |=
1691 		cpu_to_le32(IEEE80211_RADIOTAP_EHT_USIG_COMMON_BW_KNOWN);
1692 
1693 	/* specific handling for 320MHz */
1694 	bw = FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK, rate_n_flags);
1695 	if (bw == RATE_MCS_CHAN_WIDTH_320_VAL)
1696 		bw += FIELD_GET(IWL_RX_PHY_DATA0_EHT_BW320_SLOT,
1697 				le32_to_cpu(phy_data->d0));
1698 
1699 	usig->common |= cpu_to_le32
1700 		(FIELD_PREP(IEEE80211_RADIOTAP_EHT_USIG_COMMON_BW, bw));
1701 
1702 	/* report the AMPDU-EOF bit on single frames */
1703 	if (!queue && !(phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
1704 		rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
1705 		rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
1706 		if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_EHT_DELIM_EOF))
1707 			rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;
1708 	}
1709 
1710 	/* update aggregation data for monitor sake on default queue */
1711 	if (!queue && (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) &&
1712 	    (phy_info & IWL_RX_MPDU_PHY_AMPDU) && phy_data->first_subframe) {
1713 		rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
1714 		if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_EHT_DELIM_EOF))
1715 			rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;
1716 	}
1717 
1718 	if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)
1719 		iwl_mvm_decode_eht_phy_data(mvm, phy_data, rx_status, eht, usig);
1720 
1721 #define CHECK_TYPE(F)							\
1722 	BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA1_FORMAT_ ## F !=	\
1723 		     (RATE_MCS_HE_TYPE_ ## F >> RATE_MCS_HE_TYPE_POS))
1724 
1725 	CHECK_TYPE(SU);
1726 	CHECK_TYPE(EXT_SU);
1727 	CHECK_TYPE(MU);
1728 	CHECK_TYPE(TRIG);
1729 
1730 	switch (FIELD_GET(RATE_MCS_HE_GI_LTF_MSK, rate_n_flags)) {
1731 	case 0:
1732 		if (he_type == RATE_MCS_HE_TYPE_TRIG) {
1733 			rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_1_6;
1734 			ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_1X;
1735 		} else {
1736 			rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_0_8;
1737 			ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;
1738 		}
1739 		break;
1740 	case 1:
1741 		rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_1_6;
1742 		ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;
1743 		break;
1744 	case 2:
1745 		ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
1746 		if (he_type == RATE_MCS_HE_TYPE_TRIG)
1747 			rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_3_2;
1748 		else
1749 			rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_0_8;
1750 		break;
1751 	case 3:
1752 		if (he_type != RATE_MCS_HE_TYPE_TRIG) {
1753 			ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
1754 			rx_status->eht.gi = NL80211_RATE_INFO_EHT_GI_3_2;
1755 		}
1756 		break;
1757 	default:
1758 		/* nothing here */
1759 		break;
1760 	}
1761 
1762 	if (ltf != IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_UNKNOWN) {
1763 		eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_GI);
1764 		eht->data[0] |= cpu_to_le32
1765 			(FIELD_PREP(IEEE80211_RADIOTAP_EHT_DATA0_LTF,
1766 				    ltf) |
1767 			 FIELD_PREP(IEEE80211_RADIOTAP_EHT_DATA0_GI,
1768 				    rx_status->eht.gi));
1769 	}
1770 
1771 
1772 	if (!phy_data->with_data) {
1773 		eht->known |= cpu_to_le32(IEEE80211_RADIOTAP_EHT_KNOWN_NSS_S |
1774 					  IEEE80211_RADIOTAP_EHT_KNOWN_BEAMFORMED_S);
1775 		eht->data[7] |=
1776 			le32_encode_bits(le32_get_bits(phy_data->rx_vec[2],
1777 						       RX_NO_DATA_RX_VEC2_EHT_NSTS_MSK),
1778 					 IEEE80211_RADIOTAP_EHT_DATA7_NSS_S);
1779 		if (rate_n_flags & RATE_MCS_BF_MSK)
1780 			eht->data[7] |=
1781 				cpu_to_le32(IEEE80211_RADIOTAP_EHT_DATA7_BEAMFORMED_S);
1782 	} else {
1783 		eht->user_info[0] |=
1784 			cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_MCS_KNOWN |
1785 				    IEEE80211_RADIOTAP_EHT_USER_INFO_CODING_KNOWN |
1786 				    IEEE80211_RADIOTAP_EHT_USER_INFO_NSS_KNOWN_O |
1787 				    IEEE80211_RADIOTAP_EHT_USER_INFO_BEAMFORMING_KNOWN_O |
1788 				    IEEE80211_RADIOTAP_EHT_USER_INFO_DATA_FOR_USER);
1789 
1790 		if (rate_n_flags & RATE_MCS_BF_MSK)
1791 			eht->user_info[0] |=
1792 				cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_BEAMFORMING_O);
1793 
1794 		if (rate_n_flags & RATE_MCS_LDPC_MSK)
1795 			eht->user_info[0] |=
1796 				cpu_to_le32(IEEE80211_RADIOTAP_EHT_USER_INFO_CODING);
1797 
1798 		eht->user_info[0] |= cpu_to_le32
1799 			(FIELD_PREP(IEEE80211_RADIOTAP_EHT_USER_INFO_MCS,
1800 				    FIELD_GET(RATE_VHT_MCS_RATE_CODE_MSK,
1801 					      rate_n_flags)) |
1802 			 FIELD_PREP(IEEE80211_RADIOTAP_EHT_USER_INFO_NSS_O,
1803 				    FIELD_GET(RATE_MCS_NSS_MSK, rate_n_flags)));
1804 	}
1805 }
1806 
iwl_mvm_rx_he(struct iwl_mvm * mvm,struct sk_buff * skb,struct iwl_mvm_rx_phy_data * phy_data,int queue)1807 static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct sk_buff *skb,
1808 			  struct iwl_mvm_rx_phy_data *phy_data,
1809 			  int queue)
1810 {
1811 	struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
1812 	struct ieee80211_radiotap_he *he = NULL;
1813 	struct ieee80211_radiotap_he_mu *he_mu = NULL;
1814 	u32 rate_n_flags = phy_data->rate_n_flags;
1815 	u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK;
1816 	u8 ltf;
1817 	static const struct ieee80211_radiotap_he known = {
1818 		.data1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_DATA_MCS_KNOWN |
1819 				     IEEE80211_RADIOTAP_HE_DATA1_DATA_DCM_KNOWN |
1820 				     IEEE80211_RADIOTAP_HE_DATA1_STBC_KNOWN |
1821 				     IEEE80211_RADIOTAP_HE_DATA1_CODING_KNOWN),
1822 		.data2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_GI_KNOWN |
1823 				     IEEE80211_RADIOTAP_HE_DATA2_TXBF_KNOWN),
1824 	};
1825 	static const struct ieee80211_radiotap_he_mu mu_known = {
1826 		.flags1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS_KNOWN |
1827 				      IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM_KNOWN |
1828 				      IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_SYMS_USERS_KNOWN |
1829 				      IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_COMP_KNOWN),
1830 		.flags2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW_KNOWN |
1831 				      IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_KNOWN),
1832 	};
1833 	u16 phy_info = phy_data->phy_info;
1834 
1835 	he = skb_put_data(skb, &known, sizeof(known));
1836 	rx_status->flag |= RX_FLAG_RADIOTAP_HE;
1837 
1838 	if (phy_data->info_type == IWL_RX_PHY_INFO_TYPE_HE_MU ||
1839 	    phy_data->info_type == IWL_RX_PHY_INFO_TYPE_HE_MU_EXT) {
1840 		he_mu = skb_put_data(skb, &mu_known, sizeof(mu_known));
1841 		rx_status->flag |= RX_FLAG_RADIOTAP_HE_MU;
1842 	}
1843 
1844 	/* report the AMPDU-EOF bit on single frames */
1845 	if (!queue && !(phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
1846 		rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
1847 		rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
1848 		if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_HE_DELIM_EOF))
1849 			rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;
1850 	}
1851 
1852 	if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)
1853 		iwl_mvm_decode_he_phy_data(mvm, phy_data, he, he_mu, rx_status,
1854 					   queue);
1855 
1856 	/* update aggregation data for monitor sake on default queue */
1857 	if (!queue && (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) &&
1858 	    (phy_info & IWL_RX_MPDU_PHY_AMPDU) && phy_data->first_subframe) {
1859 		rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
1860 		if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_EHT_DELIM_EOF))
1861 			rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;
1862 	}
1863 
1864 	if (he_type == RATE_MCS_HE_TYPE_EXT_SU &&
1865 	    rate_n_flags & RATE_MCS_HE_106T_MSK) {
1866 		rx_status->bw = RATE_INFO_BW_HE_RU;
1867 		rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106;
1868 	}
1869 
1870 	/* actually data is filled in mac80211 */
1871 	if (he_type == RATE_MCS_HE_TYPE_SU ||
1872 	    he_type == RATE_MCS_HE_TYPE_EXT_SU)
1873 		he->data1 |=
1874 			cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN);
1875 
1876 #define CHECK_TYPE(F)							\
1877 	BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA1_FORMAT_ ## F !=	\
1878 		     (RATE_MCS_HE_TYPE_ ## F >> RATE_MCS_HE_TYPE_POS))
1879 
1880 	CHECK_TYPE(SU);
1881 	CHECK_TYPE(EXT_SU);
1882 	CHECK_TYPE(MU);
1883 	CHECK_TYPE(TRIG);
1884 
1885 	he->data1 |= cpu_to_le16(he_type >> RATE_MCS_HE_TYPE_POS);
1886 
1887 	if (rate_n_flags & RATE_MCS_BF_MSK)
1888 		he->data5 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA5_TXBF);
1889 
1890 	switch ((rate_n_flags & RATE_MCS_HE_GI_LTF_MSK) >>
1891 		RATE_MCS_HE_GI_LTF_POS) {
1892 	case 0:
1893 		if (he_type == RATE_MCS_HE_TYPE_TRIG)
1894 			rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
1895 		else
1896 			rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
1897 		if (he_type == RATE_MCS_HE_TYPE_MU)
1898 			ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
1899 		else
1900 			ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_1X;
1901 		break;
1902 	case 1:
1903 		if (he_type == RATE_MCS_HE_TYPE_TRIG)
1904 			rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
1905 		else
1906 			rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
1907 		ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;
1908 		break;
1909 	case 2:
1910 		if (he_type == RATE_MCS_HE_TYPE_TRIG) {
1911 			rx_status->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
1912 			ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
1913 		} else {
1914 			rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
1915 			ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;
1916 		}
1917 		break;
1918 	case 3:
1919 		rx_status->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
1920 		ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
1921 		break;
1922 	case 4:
1923 		rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
1924 		ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
1925 		break;
1926 	default:
1927 		ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_UNKNOWN;
1928 	}
1929 
1930 	he->data5 |= le16_encode_bits(ltf,
1931 				      IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE);
1932 }
1933 
iwl_mvm_decode_lsig(struct sk_buff * skb,struct iwl_mvm_rx_phy_data * phy_data)1934 static void iwl_mvm_decode_lsig(struct sk_buff *skb,
1935 				struct iwl_mvm_rx_phy_data *phy_data)
1936 {
1937 	struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
1938 	struct ieee80211_radiotap_lsig *lsig;
1939 
1940 	switch (phy_data->info_type) {
1941 	case IWL_RX_PHY_INFO_TYPE_HT:
1942 	case IWL_RX_PHY_INFO_TYPE_VHT_SU:
1943 	case IWL_RX_PHY_INFO_TYPE_VHT_MU:
1944 	case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:
1945 	case IWL_RX_PHY_INFO_TYPE_HE_SU:
1946 	case IWL_RX_PHY_INFO_TYPE_HE_MU:
1947 	case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
1948 	case IWL_RX_PHY_INFO_TYPE_HE_TB:
1949 	case IWL_RX_PHY_INFO_TYPE_EHT_MU:
1950 	case IWL_RX_PHY_INFO_TYPE_EHT_TB:
1951 	case IWL_RX_PHY_INFO_TYPE_EHT_MU_EXT:
1952 	case IWL_RX_PHY_INFO_TYPE_EHT_TB_EXT:
1953 		lsig = skb_put(skb, sizeof(*lsig));
1954 		lsig->data1 = cpu_to_le16(IEEE80211_RADIOTAP_LSIG_DATA1_LENGTH_KNOWN);
1955 		lsig->data2 = le16_encode_bits(le32_get_bits(phy_data->d1,
1956 							     IWL_RX_PHY_DATA1_LSIG_LEN_MASK),
1957 					       IEEE80211_RADIOTAP_LSIG_DATA2_LENGTH);
1958 		rx_status->flag |= RX_FLAG_RADIOTAP_LSIG;
1959 		break;
1960 	default:
1961 		break;
1962 	}
1963 }
1964 
1965 struct iwl_rx_sta_csa {
1966 	bool all_sta_unblocked;
1967 	struct ieee80211_vif *vif;
1968 };
1969 
iwl_mvm_rx_get_sta_block_tx(void * data,struct ieee80211_sta * sta)1970 static void iwl_mvm_rx_get_sta_block_tx(void *data, struct ieee80211_sta *sta)
1971 {
1972 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1973 	struct iwl_rx_sta_csa *rx_sta_csa = data;
1974 
1975 	if (mvmsta->vif != rx_sta_csa->vif)
1976 		return;
1977 
1978 	if (mvmsta->disable_tx)
1979 		rx_sta_csa->all_sta_unblocked = false;
1980 }
1981 
1982 /*
1983  * Note: requires also rx_status->band to be prefilled, as well
1984  * as phy_data (apart from phy_data->info_type)
1985  * Note: desc/hdr may be NULL
1986  */
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)1987 static void iwl_mvm_rx_fill_status(struct iwl_mvm *mvm,
1988 				   struct iwl_rx_mpdu_desc *desc,
1989 				   struct ieee80211_hdr *hdr,
1990 				   struct sk_buff *skb,
1991 				   struct iwl_mvm_rx_phy_data *phy_data,
1992 				   int queue)
1993 {
1994 	struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
1995 	u32 rate_n_flags = phy_data->rate_n_flags;
1996 	u8 stbc = u32_get_bits(rate_n_flags, RATE_MCS_STBC_MSK);
1997 	u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
1998 	bool is_sgi;
1999 
2000 	phy_data->info_type = IWL_RX_PHY_INFO_TYPE_NONE;
2001 
2002 	if (phy_data->phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)
2003 		phy_data->info_type =
2004 			le32_get_bits(phy_data->d1,
2005 				      IWL_RX_PHY_DATA1_INFO_TYPE_MASK);
2006 
2007 	/* This may be overridden by iwl_mvm_rx_he() to HE_RU */
2008 	switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
2009 	case RATE_MCS_CHAN_WIDTH_20:
2010 		break;
2011 	case RATE_MCS_CHAN_WIDTH_40:
2012 		rx_status->bw = RATE_INFO_BW_40;
2013 		break;
2014 	case RATE_MCS_CHAN_WIDTH_80:
2015 		rx_status->bw = RATE_INFO_BW_80;
2016 		break;
2017 	case RATE_MCS_CHAN_WIDTH_160:
2018 		rx_status->bw = RATE_INFO_BW_160;
2019 		break;
2020 	case RATE_MCS_CHAN_WIDTH_320:
2021 		rx_status->bw = RATE_INFO_BW_320;
2022 		break;
2023 	}
2024 
2025 	/* must be before L-SIG data */
2026 	if (format == RATE_MCS_MOD_TYPE_HE)
2027 		iwl_mvm_rx_he(mvm, skb, phy_data, queue);
2028 
2029 	iwl_mvm_decode_lsig(skb, phy_data);
2030 
2031 	rx_status->device_timestamp = phy_data->gp2_on_air_rise;
2032 
2033 	if (mvm->rx_ts_ptp && mvm->monitor_on) {
2034 		u64 adj_time =
2035 			iwl_mvm_ptp_get_adj_time(mvm, phy_data->gp2_on_air_rise * NSEC_PER_USEC);
2036 
2037 		rx_status->mactime = div64_u64(adj_time, NSEC_PER_USEC);
2038 		rx_status->flag |= RX_FLAG_MACTIME_IS_RTAP_TS64;
2039 		rx_status->flag &= ~RX_FLAG_MACTIME;
2040 	}
2041 
2042 	rx_status->freq = ieee80211_channel_to_frequency(phy_data->channel,
2043 							 rx_status->band);
2044 	iwl_mvm_get_signal_strength(mvm, desc, hdr, rx_status, rate_n_flags,
2045 				    phy_data->energy_a, phy_data->energy_b);
2046 
2047 	/* using TLV format and must be after all fixed len fields */
2048 	if (format == RATE_MCS_MOD_TYPE_EHT)
2049 		iwl_mvm_rx_eht(mvm, skb, phy_data, queue);
2050 
2051 	if (unlikely(mvm->monitor_on))
2052 		iwl_mvm_add_rtap_sniffer_config(mvm, skb);
2053 
2054 	is_sgi = format == RATE_MCS_MOD_TYPE_HE ?
2055 		iwl_he_is_sgi(rate_n_flags) :
2056 		rate_n_flags & RATE_MCS_SGI_MSK;
2057 
2058 	if (!(format == RATE_MCS_MOD_TYPE_CCK) && is_sgi)
2059 		rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
2060 
2061 	if (rate_n_flags & RATE_MCS_LDPC_MSK)
2062 		rx_status->enc_flags |= RX_ENC_FLAG_LDPC;
2063 
2064 	switch (format) {
2065 	case RATE_MCS_MOD_TYPE_VHT:
2066 		rx_status->encoding = RX_ENC_VHT;
2067 		break;
2068 	case RATE_MCS_MOD_TYPE_HE:
2069 		rx_status->encoding = RX_ENC_HE;
2070 		rx_status->he_dcm =
2071 			!!(rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK);
2072 		break;
2073 	case RATE_MCS_MOD_TYPE_EHT:
2074 		rx_status->encoding = RX_ENC_EHT;
2075 		break;
2076 	}
2077 
2078 	switch (format) {
2079 	case RATE_MCS_MOD_TYPE_HT:
2080 		rx_status->encoding = RX_ENC_HT;
2081 		rx_status->rate_idx = RATE_HT_MCS_INDEX(rate_n_flags);
2082 		rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
2083 		break;
2084 	case RATE_MCS_MOD_TYPE_VHT:
2085 	case RATE_MCS_MOD_TYPE_HE:
2086 	case RATE_MCS_MOD_TYPE_EHT:
2087 		rx_status->nss =
2088 			u32_get_bits(rate_n_flags, RATE_MCS_NSS_MSK) + 1;
2089 		rx_status->rate_idx = rate_n_flags & RATE_MCS_CODE_MSK;
2090 		rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
2091 		break;
2092 	default: {
2093 		int rate = iwl_mvm_legacy_hw_idx_to_mac80211_idx(rate_n_flags,
2094 								 rx_status->band);
2095 
2096 		rx_status->rate_idx = rate;
2097 
2098 		if ((rate < 0 || rate > 0xFF)) {
2099 			rx_status->rate_idx = 0;
2100 			if (net_ratelimit())
2101 				IWL_ERR(mvm, "Invalid rate flags 0x%x, band %d,\n",
2102 					rate_n_flags, rx_status->band);
2103 		}
2104 
2105 		break;
2106 		}
2107 	}
2108 }
2109 
iwl_mvm_rx_mpdu_mq(struct iwl_mvm * mvm,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb,int queue)2110 void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
2111 			struct iwl_rx_cmd_buffer *rxb, int queue)
2112 {
2113 	struct ieee80211_rx_status *rx_status;
2114 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
2115 	struct iwl_rx_mpdu_desc *desc = (void *)pkt->data;
2116 	struct ieee80211_hdr *hdr;
2117 	u32 len;
2118 	u32 pkt_len = iwl_rx_packet_payload_len(pkt);
2119 	struct ieee80211_sta *sta = NULL;
2120 	struct sk_buff *skb;
2121 	u8 crypt_len = 0;
2122 	u8 sta_id = le32_get_bits(desc->status, IWL_RX_MPDU_STATUS_STA_ID);
2123 	size_t desc_size;
2124 	struct iwl_mvm_rx_phy_data phy_data = {};
2125 	u32 format;
2126 
2127 	if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)))
2128 		return;
2129 
2130 	if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
2131 		desc_size = sizeof(*desc);
2132 	else
2133 		desc_size = IWL_RX_DESC_SIZE_V1;
2134 
2135 	if (unlikely(pkt_len < desc_size)) {
2136 		IWL_DEBUG_DROP(mvm, "Bad REPLY_RX_MPDU_CMD size\n");
2137 		return;
2138 	}
2139 
2140 	if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) {
2141 		phy_data.rate_n_flags =
2142 			iwl_mvm_v3_rate_from_fw(desc->v3.rate_n_flags,
2143 						mvm->fw_rates_ver);
2144 		phy_data.channel = desc->v3.channel;
2145 		phy_data.gp2_on_air_rise = le32_to_cpu(desc->v3.gp2_on_air_rise);
2146 		phy_data.energy_a = desc->v3.energy_a;
2147 		phy_data.energy_b = desc->v3.energy_b;
2148 
2149 		phy_data.d0 = desc->v3.phy_data0;
2150 		phy_data.d1 = desc->v3.phy_data1;
2151 		phy_data.d2 = desc->v3.phy_data2;
2152 		phy_data.d3 = desc->v3.phy_data3;
2153 		phy_data.eht_d4 = desc->phy_eht_data4;
2154 		phy_data.d5 = desc->v3.phy_data5;
2155 	} else {
2156 		phy_data.rate_n_flags =
2157 			iwl_mvm_v3_rate_from_fw(desc->v1.rate_n_flags,
2158 						mvm->fw_rates_ver);
2159 		phy_data.channel = desc->v1.channel;
2160 		phy_data.gp2_on_air_rise = le32_to_cpu(desc->v1.gp2_on_air_rise);
2161 		phy_data.energy_a = desc->v1.energy_a;
2162 		phy_data.energy_b = desc->v1.energy_b;
2163 
2164 		phy_data.d0 = desc->v1.phy_data0;
2165 		phy_data.d1 = desc->v1.phy_data1;
2166 		phy_data.d2 = desc->v1.phy_data2;
2167 		phy_data.d3 = desc->v1.phy_data3;
2168 	}
2169 
2170 	format = phy_data.rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
2171 
2172 	len = le16_to_cpu(desc->mpdu_len);
2173 
2174 	if (unlikely(len + desc_size > pkt_len)) {
2175 		IWL_DEBUG_DROP(mvm, "FW lied about packet len\n");
2176 		return;
2177 	}
2178 
2179 	phy_data.with_data = true;
2180 	phy_data.phy_info = le16_to_cpu(desc->phy_info);
2181 	phy_data.d4 = desc->phy_data4;
2182 
2183 	hdr = (void *)(pkt->data + desc_size);
2184 	/* Dont use dev_alloc_skb(), we'll have enough headroom once
2185 	 * ieee80211_hdr pulled.
2186 	 */
2187 	skb = alloc_skb(128, GFP_ATOMIC);
2188 	if (!skb) {
2189 		IWL_ERR(mvm, "alloc_skb failed\n");
2190 		return;
2191 	}
2192 
2193 	if (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_PAD) {
2194 		/*
2195 		 * If the device inserted padding it means that (it thought)
2196 		 * the 802.11 header wasn't a multiple of 4 bytes long. In
2197 		 * this case, reserve two bytes at the start of the SKB to
2198 		 * align the payload properly in case we end up copying it.
2199 		 */
2200 		skb_reserve(skb, 2);
2201 	}
2202 
2203 	rx_status = IEEE80211_SKB_RXCB(skb);
2204 
2205 	/*
2206 	 * Keep packets with CRC errors (and with overrun) for monitor mode
2207 	 * (otherwise the firmware discards them) but mark them as bad.
2208 	 */
2209 	if (!(desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_CRC_OK)) ||
2210 	    !(desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_OVERRUN_OK))) {
2211 		IWL_DEBUG_RX(mvm, "Bad CRC or FIFO: 0x%08X.\n",
2212 			     le32_to_cpu(desc->status));
2213 		rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
2214 	}
2215 
2216 	/* set the preamble flag if appropriate */
2217 	if (format == RATE_MCS_MOD_TYPE_CCK &&
2218 	    phy_data.phy_info & IWL_RX_MPDU_PHY_SHORT_PREAMBLE)
2219 		rx_status->enc_flags |= RX_ENC_FLAG_SHORTPRE;
2220 
2221 	if (likely(!(phy_data.phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD))) {
2222 		u64 tsf_on_air_rise;
2223 
2224 		if (mvm->trans->mac_cfg->device_family >=
2225 		    IWL_DEVICE_FAMILY_AX210)
2226 			tsf_on_air_rise = le64_to_cpu(desc->v3.tsf_on_air_rise);
2227 		else
2228 			tsf_on_air_rise = le64_to_cpu(desc->v1.tsf_on_air_rise);
2229 
2230 		rx_status->mactime = tsf_on_air_rise;
2231 		/* TSF as indicated by the firmware is at INA time */
2232 		rx_status->flag |= RX_FLAG_MACTIME_PLCP_START;
2233 	}
2234 
2235 	if (iwl_mvm_is_band_in_rx_supported(mvm)) {
2236 		u8 band = u8_get_bits(desc->mac_phy_band,
2237 				      IWL_RX_MPDU_MAC_PHY_BAND_BAND_MASK);
2238 
2239 		rx_status->band = iwl_mvm_nl80211_band_from_phy(band);
2240 	} else {
2241 		rx_status->band = phy_data.channel > 14 ? NL80211_BAND_5GHZ :
2242 			NL80211_BAND_2GHZ;
2243 	}
2244 
2245 	/* update aggregation data for monitor sake on default queue */
2246 	if (!queue && (phy_data.phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
2247 		bool toggle_bit;
2248 
2249 		toggle_bit = phy_data.phy_info & IWL_RX_MPDU_PHY_AMPDU_TOGGLE;
2250 		rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
2251 		/*
2252 		 * Toggle is switched whenever new aggregation starts. Make
2253 		 * sure ampdu_reference is never 0 so we can later use it to
2254 		 * see if the frame was really part of an A-MPDU or not.
2255 		 */
2256 		if (toggle_bit != mvm->ampdu_toggle) {
2257 			mvm->ampdu_ref++;
2258 			if (mvm->ampdu_ref == 0)
2259 				mvm->ampdu_ref++;
2260 			mvm->ampdu_toggle = toggle_bit;
2261 			phy_data.first_subframe = true;
2262 		}
2263 		rx_status->ampdu_reference = mvm->ampdu_ref;
2264 	}
2265 
2266 	rcu_read_lock();
2267 
2268 	if (desc->status & cpu_to_le32(IWL_RX_MPDU_STATUS_SRC_STA_FOUND)) {
2269 		if (!WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) {
2270 			struct ieee80211_link_sta *link_sta;
2271 
2272 			sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
2273 			if (IS_ERR(sta))
2274 				sta = NULL;
2275 			link_sta = rcu_dereference(mvm->fw_id_to_link_sta[sta_id]);
2276 
2277 			if (sta && sta->valid_links && link_sta) {
2278 				rx_status->link_valid = 1;
2279 				rx_status->link_id = link_sta->link_id;
2280 			}
2281 		}
2282 	} else if (!is_multicast_ether_addr(hdr->addr2)) {
2283 		/*
2284 		 * This is fine since we prevent two stations with the same
2285 		 * address from being added.
2286 		 */
2287 		sta = ieee80211_find_sta_by_ifaddr(mvm->hw, hdr->addr2, NULL);
2288 	}
2289 
2290 	if (iwl_mvm_rx_crypto(mvm, sta, hdr, rx_status, phy_data.phy_info, desc,
2291 			      le32_to_cpu(pkt->len_n_flags), queue,
2292 			      &crypt_len)) {
2293 		kfree_skb(skb);
2294 		goto out;
2295 	}
2296 
2297 	iwl_mvm_rx_fill_status(mvm, desc, hdr, skb, &phy_data, queue);
2298 
2299 	if (sta) {
2300 		struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
2301 		struct ieee80211_vif *tx_blocked_vif =
2302 			rcu_dereference(mvm->csa_tx_blocked_vif);
2303 		u8 baid = (u8)((le32_to_cpu(desc->reorder_data) &
2304 			       IWL_RX_MPDU_REORDER_BAID_MASK) >>
2305 			       IWL_RX_MPDU_REORDER_BAID_SHIFT);
2306 		struct iwl_fw_dbg_trigger_tlv *trig;
2307 		struct ieee80211_vif *vif = mvmsta->vif;
2308 
2309 		if (!mvm->tcm.paused && len >= sizeof(*hdr) &&
2310 		    !is_multicast_ether_addr(hdr->addr1) &&
2311 		    ieee80211_is_data(hdr->frame_control) &&
2312 		    time_after(jiffies, mvm->tcm.ts + MVM_TCM_PERIOD))
2313 			schedule_delayed_work(&mvm->tcm.work, 0);
2314 
2315 		/*
2316 		 * We have tx blocked stations (with CS bit). If we heard
2317 		 * frames from a blocked station on a new channel we can
2318 		 * TX to it again.
2319 		 */
2320 		if (unlikely(tx_blocked_vif) && tx_blocked_vif == vif) {
2321 			struct iwl_mvm_vif *mvmvif =
2322 				iwl_mvm_vif_from_mac80211(tx_blocked_vif);
2323 			struct iwl_rx_sta_csa rx_sta_csa = {
2324 				.all_sta_unblocked = true,
2325 				.vif = tx_blocked_vif,
2326 			};
2327 
2328 			if (mvmvif->csa_target_freq == rx_status->freq)
2329 				iwl_mvm_sta_modify_disable_tx_ap(mvm, sta,
2330 								 false);
2331 			ieee80211_iterate_stations_atomic(mvm->hw,
2332 							  iwl_mvm_rx_get_sta_block_tx,
2333 							  &rx_sta_csa);
2334 
2335 			if (rx_sta_csa.all_sta_unblocked) {
2336 				RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2337 				/* Unblock BCAST / MCAST station */
2338 				iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
2339 				cancel_delayed_work(&mvm->cs_tx_unblock_dwork);
2340 			}
2341 		}
2342 
2343 		rs_update_last_rssi(mvm, mvmsta, rx_status);
2344 
2345 		trig = iwl_fw_dbg_trigger_on(&mvm->fwrt,
2346 					     ieee80211_vif_to_wdev(vif),
2347 					     FW_DBG_TRIGGER_RSSI);
2348 
2349 		if (trig && ieee80211_is_beacon(hdr->frame_control)) {
2350 			struct iwl_fw_dbg_trigger_low_rssi *rssi_trig;
2351 			s32 rssi;
2352 
2353 			rssi_trig = (void *)trig->data;
2354 			rssi = le32_to_cpu(rssi_trig->rssi);
2355 
2356 			if (rx_status->signal < rssi)
2357 				iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
2358 #if defined(__linux__)
2359 							NULL);
2360 #elif defined(__FreeBSD__)
2361 							"");
2362 #endif
2363 		}
2364 
2365 		if (ieee80211_is_data(hdr->frame_control))
2366 			iwl_mvm_rx_csum(mvm, sta, skb, pkt);
2367 
2368 		if (iwl_mvm_is_dup(sta, queue, rx_status, hdr, desc)) {
2369 			IWL_DEBUG_DROP(mvm, "Dropping duplicate packet 0x%x\n",
2370 				       le16_to_cpu(hdr->seq_ctrl));
2371 			kfree_skb(skb);
2372 			goto out;
2373 		}
2374 
2375 		/*
2376 		 * Our hardware de-aggregates AMSDUs but copies the mac header
2377 		 * as it to the de-aggregated MPDUs. We need to turn off the
2378 		 * AMSDU bit in the QoS control ourselves.
2379 		 * In addition, HW reverses addr3 and addr4 - reverse it back.
2380 		 */
2381 		if ((desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU) &&
2382 		    !WARN_ON(!ieee80211_is_data_qos(hdr->frame_control))) {
2383 			u8 *qc = ieee80211_get_qos_ctl(hdr);
2384 
2385 			*qc &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT;
2386 
2387 			if (mvm->trans->mac_cfg->device_family ==
2388 			    IWL_DEVICE_FAMILY_9000) {
2389 				iwl_mvm_flip_address(hdr->addr3);
2390 
2391 				if (ieee80211_has_a4(hdr->frame_control))
2392 					iwl_mvm_flip_address(hdr->addr4);
2393 			}
2394 		}
2395 		if (baid != IWL_RX_REORDER_DATA_INVALID_BAID) {
2396 			u32 reorder_data = le32_to_cpu(desc->reorder_data);
2397 
2398 			iwl_mvm_agg_rx_received(mvm, reorder_data, baid);
2399 		}
2400 
2401 		if (ieee80211_is_data(hdr->frame_control)) {
2402 			u8 sub_frame_idx = desc->amsdu_info &
2403 				IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK;
2404 
2405 			/* 0 means not an A-MSDU, and 1 means a new A-MSDU */
2406 			if (!sub_frame_idx || sub_frame_idx == 1)
2407 				iwl_mvm_count_mpdu(mvmsta, sta_id, 1, false,
2408 						   queue);
2409 		}
2410 	}
2411 
2412 	/* management stuff on default queue */
2413 	if (!queue) {
2414 		if (unlikely((ieee80211_is_beacon(hdr->frame_control) ||
2415 			      ieee80211_is_probe_resp(hdr->frame_control)) &&
2416 			     mvm->sched_scan_pass_all ==
2417 			     SCHED_SCAN_PASS_ALL_ENABLED))
2418 			mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_FOUND;
2419 
2420 		if (unlikely(ieee80211_is_beacon(hdr->frame_control) ||
2421 			     ieee80211_is_probe_resp(hdr->frame_control)))
2422 			rx_status->boottime_ns = ktime_get_boottime_ns();
2423 	}
2424 
2425 	if (iwl_mvm_create_skb(mvm, skb, hdr, len, crypt_len, rxb)) {
2426 		kfree_skb(skb);
2427 		goto out;
2428 	}
2429 
2430 	if (!iwl_mvm_reorder(mvm, napi, queue, sta, skb, desc) &&
2431 	    likely(!iwl_mvm_time_sync_frame(mvm, skb, hdr->addr2)) &&
2432 	    likely(!iwl_mvm_mei_filter_scan(mvm, skb))) {
2433 		if (mvm->trans->mac_cfg->device_family == IWL_DEVICE_FAMILY_9000 &&
2434 		    (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU) &&
2435 		    !(desc->amsdu_info & IWL_RX_MPDU_AMSDU_LAST_SUBFRAME))
2436 			rx_status->flag |= RX_FLAG_AMSDU_MORE;
2437 
2438 		iwl_mvm_pass_packet_to_mac80211(mvm, napi, skb, queue, sta);
2439 	}
2440 out:
2441 	rcu_read_unlock();
2442 }
2443 
iwl_mvm_rx_monitor_no_data(struct iwl_mvm * mvm,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb,int queue)2444 void iwl_mvm_rx_monitor_no_data(struct iwl_mvm *mvm, struct napi_struct *napi,
2445 				struct iwl_rx_cmd_buffer *rxb, int queue)
2446 {
2447 	struct ieee80211_rx_status *rx_status;
2448 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
2449 	struct iwl_rx_no_data_ver_3 *desc = (void *)pkt->data;
2450 	u32 rssi;
2451 	struct ieee80211_sta *sta = NULL;
2452 	struct sk_buff *skb;
2453 	struct iwl_mvm_rx_phy_data phy_data;
2454 	u32 format;
2455 
2456 	if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)))
2457 		return;
2458 
2459 	if (unlikely(iwl_rx_packet_payload_len(pkt) < sizeof(struct iwl_rx_no_data)))
2460 		return;
2461 
2462 	rssi = le32_to_cpu(desc->rssi);
2463 	phy_data.d0 = desc->phy_info[0];
2464 	phy_data.d1 = desc->phy_info[1];
2465 	phy_data.phy_info = IWL_RX_MPDU_PHY_TSF_OVERLOAD;
2466 	phy_data.gp2_on_air_rise = le32_to_cpu(desc->on_air_rise_time);
2467 	phy_data.energy_a = u32_get_bits(rssi, RX_NO_DATA_CHAIN_A_MSK);
2468 	phy_data.energy_b = u32_get_bits(rssi, RX_NO_DATA_CHAIN_B_MSK);
2469 	phy_data.channel = u32_get_bits(rssi, RX_NO_DATA_CHANNEL_MSK);
2470 	phy_data.with_data = false;
2471 	phy_data.rx_vec[0] = desc->rx_vec[0];
2472 	phy_data.rx_vec[1] = desc->rx_vec[1];
2473 
2474 	phy_data.rate_n_flags = iwl_mvm_v3_rate_from_fw(desc->rate,
2475 							mvm->fw_rates_ver);
2476 
2477 	format = phy_data.rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
2478 
2479 	if (iwl_fw_lookup_notif_ver(mvm->fw, DATA_PATH_GROUP,
2480 				    RX_NO_DATA_NOTIF, 0) >= 3) {
2481 		if (unlikely(iwl_rx_packet_payload_len(pkt) <
2482 		    sizeof(struct iwl_rx_no_data_ver_3)))
2483 		/* invalid len for ver 3 */
2484 			return;
2485 		phy_data.rx_vec[2] = desc->rx_vec[2];
2486 		phy_data.rx_vec[3] = desc->rx_vec[3];
2487 	} else {
2488 		if (format == RATE_MCS_MOD_TYPE_EHT)
2489 			/* no support for EHT before version 3 API */
2490 			return;
2491 	}
2492 
2493 	/* Dont use dev_alloc_skb(), we'll have enough headroom once
2494 	 * ieee80211_hdr pulled.
2495 	 */
2496 	skb = alloc_skb(128, GFP_ATOMIC);
2497 	if (!skb) {
2498 		IWL_ERR(mvm, "alloc_skb failed\n");
2499 		return;
2500 	}
2501 
2502 	rx_status = IEEE80211_SKB_RXCB(skb);
2503 
2504 	/* 0-length PSDU */
2505 	rx_status->flag |= RX_FLAG_NO_PSDU;
2506 
2507 	/* mark as failed PLCP on any errors to skip checks in mac80211 */
2508 	if (le32_get_bits(desc->info, RX_NO_DATA_INFO_ERR_MSK) !=
2509 	    RX_NO_DATA_INFO_ERR_NONE)
2510 		rx_status->flag |= RX_FLAG_FAILED_PLCP_CRC;
2511 
2512 	switch (le32_get_bits(desc->info, RX_NO_DATA_INFO_TYPE_MSK)) {
2513 	case RX_NO_DATA_INFO_TYPE_NDP:
2514 		rx_status->zero_length_psdu_type =
2515 			IEEE80211_RADIOTAP_ZERO_LEN_PSDU_SOUNDING;
2516 		break;
2517 	case RX_NO_DATA_INFO_TYPE_MU_UNMATCHED:
2518 	case RX_NO_DATA_INFO_TYPE_TB_UNMATCHED:
2519 		rx_status->zero_length_psdu_type =
2520 			IEEE80211_RADIOTAP_ZERO_LEN_PSDU_NOT_CAPTURED;
2521 		break;
2522 	default:
2523 		rx_status->zero_length_psdu_type =
2524 			IEEE80211_RADIOTAP_ZERO_LEN_PSDU_VENDOR;
2525 		break;
2526 	}
2527 
2528 	rx_status->band = phy_data.channel > 14 ? NL80211_BAND_5GHZ :
2529 		NL80211_BAND_2GHZ;
2530 
2531 	iwl_mvm_rx_fill_status(mvm, NULL, NULL, skb, &phy_data, queue);
2532 
2533 	/* no more radio tap info should be put after this point.
2534 	 *
2535 	 * We mark it as mac header, for upper layers to know where
2536 	 * all radio tap header ends.
2537 	 *
2538 	 * Since data doesn't move data while putting data on skb and that is
2539 	 * the only way we use, data + len is the next place that hdr would be put
2540 	 */
2541 	skb_set_mac_header(skb, skb->len);
2542 
2543 	/*
2544 	 * Override the nss from the rx_vec since the rate_n_flags has
2545 	 * only 2 bits for the nss which gives a max of 4 ss but there
2546 	 * may be up to 8 spatial streams.
2547 	 */
2548 	switch (format) {
2549 	case RATE_MCS_MOD_TYPE_VHT:
2550 		rx_status->nss =
2551 			le32_get_bits(desc->rx_vec[0],
2552 				      RX_NO_DATA_RX_VEC0_VHT_NSTS_MSK) + 1;
2553 		break;
2554 	case RATE_MCS_MOD_TYPE_HE:
2555 		rx_status->nss =
2556 			le32_get_bits(desc->rx_vec[0],
2557 				      RX_NO_DATA_RX_VEC0_HE_NSTS_MSK) + 1;
2558 		break;
2559 	case RATE_MCS_MOD_TYPE_EHT:
2560 		rx_status->nss =
2561 			le32_get_bits(desc->rx_vec[2],
2562 				      RX_NO_DATA_RX_VEC2_EHT_NSTS_MSK) + 1;
2563 	}
2564 
2565 	rcu_read_lock();
2566 	ieee80211_rx_napi(mvm->hw, sta, skb, napi);
2567 	rcu_read_unlock();
2568 }
2569 
iwl_mvm_rx_frame_release(struct iwl_mvm * mvm,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb,int queue)2570 void iwl_mvm_rx_frame_release(struct iwl_mvm *mvm, struct napi_struct *napi,
2571 			      struct iwl_rx_cmd_buffer *rxb, int queue)
2572 {
2573 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
2574 	struct iwl_frame_release *release = (void *)pkt->data;
2575 
2576 	if (unlikely(iwl_rx_packet_payload_len(pkt) < sizeof(*release)))
2577 		return;
2578 
2579 	iwl_mvm_release_frames_from_notif(mvm, napi, release->baid,
2580 					  le16_to_cpu(release->nssn),
2581 					  queue);
2582 }
2583 
iwl_mvm_rx_bar_frame_release(struct iwl_mvm * mvm,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb,int queue)2584 void iwl_mvm_rx_bar_frame_release(struct iwl_mvm *mvm, struct napi_struct *napi,
2585 				  struct iwl_rx_cmd_buffer *rxb, int queue)
2586 {
2587 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
2588 	struct iwl_bar_frame_release *release = (void *)pkt->data;
2589 	struct iwl_mvm_baid_data *baid_data;
2590 	u32 pkt_len = iwl_rx_packet_payload_len(pkt);
2591 	unsigned int baid, nssn, sta_id, tid;
2592 
2593 	if (IWL_FW_CHECK(mvm, pkt_len < sizeof(*release),
2594 			 "Unexpected frame release notif size %d (expected %zu)\n",
2595 			 pkt_len, sizeof(*release)))
2596 		return;
2597 
2598 	baid = le32_get_bits(release->ba_info,
2599 			     IWL_BAR_FRAME_RELEASE_BAID_MASK);
2600 	nssn = le32_get_bits(release->ba_info,
2601 			     IWL_BAR_FRAME_RELEASE_NSSN_MASK);
2602 	sta_id = le32_get_bits(release->sta_tid,
2603 			       IWL_BAR_FRAME_RELEASE_STA_MASK);
2604 	tid = le32_get_bits(release->sta_tid,
2605 			    IWL_BAR_FRAME_RELEASE_TID_MASK);
2606 
2607 	if (WARN_ON_ONCE(baid == IWL_RX_REORDER_DATA_INVALID_BAID ||
2608 			 baid >= ARRAY_SIZE(mvm->baid_map)))
2609 		return;
2610 
2611 	rcu_read_lock();
2612 	baid_data = rcu_dereference(mvm->baid_map[baid]);
2613 	if (!baid_data) {
2614 		IWL_DEBUG_RX(mvm,
2615 			     "Got valid BAID %d but not allocated, invalid BAR release!\n",
2616 			      baid);
2617 		goto out;
2618 	}
2619 
2620 	if (WARN(tid != baid_data->tid || sta_id > IWL_STATION_COUNT_MAX ||
2621 		 !(baid_data->sta_mask & BIT(sta_id)),
2622 		 "baid 0x%x is mapped to sta_mask:0x%x tid:%d, but BAR release received for sta:%d tid:%d\n",
2623 		 baid, baid_data->sta_mask, baid_data->tid, sta_id,
2624 		 tid))
2625 		goto out;
2626 
2627 	IWL_DEBUG_DROP(mvm, "Received a BAR, expect packet loss: nssn %d\n",
2628 		       nssn);
2629 
2630 	iwl_mvm_release_frames_from_notif(mvm, napi, baid, nssn, queue);
2631 out:
2632 	rcu_read_unlock();
2633 }
2634 
iwl_mvm_rx_beacon_filter_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)2635 void iwl_mvm_rx_beacon_filter_notif(struct iwl_mvm *mvm,
2636 				    struct iwl_rx_cmd_buffer *rxb)
2637 {
2638 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
2639 	/* MAC or link ID in v1/v2, but driver has the IDs equal */
2640 	struct iwl_beacon_filter_notif *notif = (void *)pkt->data;
2641 	u32 id = le32_to_cpu(notif->link_id);
2642 	struct iwl_mvm_vif *mvm_vif;
2643 	struct ieee80211_vif *vif;
2644 
2645 	/* >= means AUX MAC/link ID, no energy correction needed then */
2646 	if (IWL_FW_CHECK(mvm, id >= ARRAY_SIZE(mvm->vif_id_to_mac),
2647 			 "invalid link ID %d\n", id))
2648 		return;
2649 
2650 	vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, false);
2651 	if (!vif)
2652 		return;
2653 
2654 	mvm_vif = iwl_mvm_vif_from_mac80211(vif);
2655 
2656 	mvm_vif->deflink.average_beacon_energy =
2657 		le32_to_cpu(notif->average_energy);
2658 }
2659