1 /*
2  * Copyright (c) 2005-2011 Atheros Communications Inc.
3  * Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
4  *
5  * Permission to use, copy, modify, and/or distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #ifndef _RX_DESC_H_
19 #define _RX_DESC_H_
20 
21 #include <linux/bitops.h>
22 
23 enum rx_attention_flags {
24 	RX_ATTENTION_FLAGS_FIRST_MPDU          = BIT(0),
25 	RX_ATTENTION_FLAGS_LAST_MPDU           = BIT(1),
26 	RX_ATTENTION_FLAGS_MCAST_BCAST         = BIT(2),
27 	RX_ATTENTION_FLAGS_PEER_IDX_INVALID    = BIT(3),
28 	RX_ATTENTION_FLAGS_PEER_IDX_TIMEOUT    = BIT(4),
29 	RX_ATTENTION_FLAGS_POWER_MGMT          = BIT(5),
30 	RX_ATTENTION_FLAGS_NON_QOS             = BIT(6),
31 	RX_ATTENTION_FLAGS_NULL_DATA           = BIT(7),
32 	RX_ATTENTION_FLAGS_MGMT_TYPE           = BIT(8),
33 	RX_ATTENTION_FLAGS_CTRL_TYPE           = BIT(9),
34 	RX_ATTENTION_FLAGS_MORE_DATA           = BIT(10),
35 	RX_ATTENTION_FLAGS_EOSP                = BIT(11),
36 	RX_ATTENTION_FLAGS_U_APSD_TRIGGER      = BIT(12),
37 	RX_ATTENTION_FLAGS_FRAGMENT            = BIT(13),
38 	RX_ATTENTION_FLAGS_ORDER               = BIT(14),
39 	RX_ATTENTION_FLAGS_CLASSIFICATION      = BIT(15),
40 	RX_ATTENTION_FLAGS_OVERFLOW_ERR        = BIT(16),
41 	RX_ATTENTION_FLAGS_MSDU_LENGTH_ERR     = BIT(17),
42 	RX_ATTENTION_FLAGS_TCP_UDP_CHKSUM_FAIL = BIT(18),
43 	RX_ATTENTION_FLAGS_IP_CHKSUM_FAIL      = BIT(19),
44 	RX_ATTENTION_FLAGS_SA_IDX_INVALID      = BIT(20),
45 	RX_ATTENTION_FLAGS_DA_IDX_INVALID      = BIT(21),
46 	RX_ATTENTION_FLAGS_SA_IDX_TIMEOUT      = BIT(22),
47 	RX_ATTENTION_FLAGS_DA_IDX_TIMEOUT      = BIT(23),
48 	RX_ATTENTION_FLAGS_ENCRYPT_REQUIRED    = BIT(24),
49 	RX_ATTENTION_FLAGS_DIRECTED            = BIT(25),
50 	RX_ATTENTION_FLAGS_BUFFER_FRAGMENT     = BIT(26),
51 	RX_ATTENTION_FLAGS_MPDU_LENGTH_ERR     = BIT(27),
52 	RX_ATTENTION_FLAGS_TKIP_MIC_ERR        = BIT(28),
53 	RX_ATTENTION_FLAGS_DECRYPT_ERR         = BIT(29),
54 	RX_ATTENTION_FLAGS_FCS_ERR             = BIT(30),
55 	RX_ATTENTION_FLAGS_MSDU_DONE           = BIT(31),
56 };
57 
58 struct rx_attention {
59 	__le32 flags; /* %RX_ATTENTION_FLAGS_ */
60 } __packed;
61 
62 /*
63  * first_mpdu
64  *		Indicates the first MSDU of the PPDU.  If both first_mpdu
65  *		and last_mpdu are set in the MSDU then this is a not an
66  *		A-MPDU frame but a stand alone MPDU.  Interior MPDU in an
67  *		A-MPDU shall have both first_mpdu and last_mpdu bits set to
68  *		0.  The PPDU start status will only be valid when this bit
69  *		is set.
70  *
71  * last_mpdu
72  *		Indicates the last MSDU of the last MPDU of the PPDU.  The
73  *		PPDU end status will only be valid when this bit is set.
74  *
75  * mcast_bcast
76  *		Multicast / broadcast indicator.  Only set when the MAC
77  *		address 1 bit 0 is set indicating mcast/bcast and the BSSID
78  *		matches one of the 4 BSSID registers. Only set when
79  *		first_msdu is set.
80  *
81  * peer_idx_invalid
82  *		Indicates no matching entries within the the max search
83  *		count.  Only set when first_msdu is set.
84  *
85  * peer_idx_timeout
86  *		Indicates an unsuccessful search for the peer index due to
87  *		timeout.  Only set when first_msdu is set.
88  *
89  * power_mgmt
90  *		Power management bit set in the 802.11 header.  Only set
91  *		when first_msdu is set.
92  *
93  * non_qos
94  *		Set if packet is not a non-QoS data frame.  Only set when
95  *		first_msdu is set.
96  *
97  * null_data
98  *		Set if frame type indicates either null data or QoS null
99  *		data format.  Only set when first_msdu is set.
100  *
101  * mgmt_type
102  *		Set if packet is a management packet.  Only set when
103  *		first_msdu is set.
104  *
105  * ctrl_type
106  *		Set if packet is a control packet.  Only set when first_msdu
107  *		is set.
108  *
109  * more_data
110  *		Set if more bit in frame control is set.  Only set when
111  *		first_msdu is set.
112  *
113  * eosp
114  *		Set if the EOSP (end of service period) bit in the QoS
115  *		control field is set.  Only set when first_msdu is set.
116  *
117  * u_apsd_trigger
118  *		Set if packet is U-APSD trigger.  Key table will have bits
119  *		per TID to indicate U-APSD trigger.
120  *
121  * fragment
122  *		Indicates that this is an 802.11 fragment frame.  This is
123  *		set when either the more_frag bit is set in the frame
124  *		control or the fragment number is not zero.  Only set when
125  *		first_msdu is set.
126  *
127  * order
128  *		Set if the order bit in the frame control is set.  Only set
129  *		when first_msdu is set.
130  *
131  * classification
132  *		Indicates that this status has a corresponding MSDU that
133  *		requires FW processing.  The OLE will have classification
134  *		ring mask registers which will indicate the ring(s) for
135  *		packets and descriptors which need FW attention.
136  *
137  * overflow_err
138  *		PCU Receive FIFO does not have enough space to store the
139  *		full receive packet.  Enough space is reserved in the
140  *		receive FIFO for the status is written.  This MPDU remaining
141  *		packets in the PPDU will be filtered and no Ack response
142  *		will be transmitted.
143  *
144  * msdu_length_err
145  *		Indicates that the MSDU length from the 802.3 encapsulated
146  *		length field extends beyond the MPDU boundary.
147  *
148  * tcp_udp_chksum_fail
149  *		Indicates that the computed checksum (tcp_udp_chksum) did
150  *		not match the checksum in the TCP/UDP header.
151  *
152  * ip_chksum_fail
153  *		Indicates that the computed checksum did not match the
154  *		checksum in the IP header.
155  *
156  * sa_idx_invalid
157  *		Indicates no matching entry was found in the address search
158  *		table for the source MAC address.
159  *
160  * da_idx_invalid
161  *		Indicates no matching entry was found in the address search
162  *		table for the destination MAC address.
163  *
164  * sa_idx_timeout
165  *		Indicates an unsuccessful search for the source MAC address
166  *		due to the expiring of the search timer.
167  *
168  * da_idx_timeout
169  *		Indicates an unsuccessful search for the destination MAC
170  *		address due to the expiring of the search timer.
171  *
172  * encrypt_required
173  *		Indicates that this data type frame is not encrypted even if
174  *		the policy for this MPDU requires encryption as indicated in
175  *		the peer table key type.
176  *
177  * directed
178  *		MPDU is a directed packet which means that the RA matched
179  *		our STA addresses.  In proxySTA it means that the TA matched
180  *		an entry in our address search table with the corresponding
181  *		'no_ack' bit is the address search entry cleared.
182  *
183  * buffer_fragment
184  *		Indicates that at least one of the rx buffers has been
185  *		fragmented.  If set the FW should look at the rx_frag_info
186  *		descriptor described below.
187  *
188  * mpdu_length_err
189  *		Indicates that the MPDU was pre-maturely terminated
190  *		resulting in a truncated MPDU.  Don't trust the MPDU length
191  *		field.
192  *
193  * tkip_mic_err
194  *		Indicates that the MPDU Michael integrity check failed
195  *
196  * decrypt_err
197  *		Indicates that the MPDU decrypt integrity check failed
198  *
199  * fcs_err
200  *		Indicates that the MPDU FCS check failed
201  *
202  * msdu_done
203  *		If set indicates that the RX packet data, RX header data, RX
204  *		PPDU start descriptor, RX MPDU start/end descriptor, RX MSDU
205  *		start/end descriptors and RX Attention descriptor are all
206  *		valid.  This bit must be in the last octet of the
207  *		descriptor.
208  */
209 
210 struct rx_frag_info {
211 	u8 ring0_more_count;
212 	u8 ring1_more_count;
213 	u8 ring2_more_count;
214 	u8 ring3_more_count;
215 	u8 ring4_more_count;
216 	u8 ring5_more_count;
217 	u8 ring6_more_count;
218 	u8 ring7_more_count;
219 } __packed;
220 
221 /*
222  * ring0_more_count
223  *		Indicates the number of more buffers associated with RX DMA
224  *		ring 0.  Field is filled in by the RX_DMA.
225  *
226  * ring1_more_count
227  *		Indicates the number of more buffers associated with RX DMA
228  *		ring 1. Field is filled in by the RX_DMA.
229  *
230  * ring2_more_count
231  *		Indicates the number of more buffers associated with RX DMA
232  *		ring 2. Field is filled in by the RX_DMA.
233  *
234  * ring3_more_count
235  *		Indicates the number of more buffers associated with RX DMA
236  *		ring 3. Field is filled in by the RX_DMA.
237  */
238 
239 enum htt_rx_mpdu_encrypt_type {
240 	HTT_RX_MPDU_ENCRYPT_WEP40            = 0,
241 	HTT_RX_MPDU_ENCRYPT_WEP104           = 1,
242 	HTT_RX_MPDU_ENCRYPT_TKIP_WITHOUT_MIC = 2,
243 	HTT_RX_MPDU_ENCRYPT_WEP128           = 3,
244 	HTT_RX_MPDU_ENCRYPT_TKIP_WPA         = 4,
245 	HTT_RX_MPDU_ENCRYPT_WAPI             = 5,
246 	HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2     = 6,
247 	HTT_RX_MPDU_ENCRYPT_NONE             = 7,
248 	HTT_RX_MPDU_ENCRYPT_AES_CCM256_WPA2  = 8,
249 	HTT_RX_MPDU_ENCRYPT_AES_GCMP_WPA2    = 9,
250 	HTT_RX_MPDU_ENCRYPT_AES_GCMP256_WPA2 = 10,
251 };
252 
253 #define RX_MPDU_START_INFO0_PEER_IDX_MASK     0x000007ff
254 #define RX_MPDU_START_INFO0_PEER_IDX_LSB      0
255 #define RX_MPDU_START_INFO0_SEQ_NUM_MASK      0x0fff0000
256 #define RX_MPDU_START_INFO0_SEQ_NUM_LSB       16
257 #define RX_MPDU_START_INFO0_ENCRYPT_TYPE_MASK 0xf0000000
258 #define RX_MPDU_START_INFO0_ENCRYPT_TYPE_LSB  28
259 #define RX_MPDU_START_INFO0_FROM_DS           BIT(11)
260 #define RX_MPDU_START_INFO0_TO_DS             BIT(12)
261 #define RX_MPDU_START_INFO0_ENCRYPTED         BIT(13)
262 #define RX_MPDU_START_INFO0_RETRY             BIT(14)
263 #define RX_MPDU_START_INFO0_TXBF_H_INFO       BIT(15)
264 
265 #define RX_MPDU_START_INFO1_TID_MASK 0xf0000000
266 #define RX_MPDU_START_INFO1_TID_LSB  28
267 #define RX_MPDU_START_INFO1_DIRECTED BIT(16)
268 
269 struct rx_mpdu_start {
270 	__le32 info0;
271 	union {
272 		struct {
273 			__le32 pn31_0;
274 			__le32 info1; /* %RX_MPDU_START_INFO1_ */
275 		} __packed;
276 		struct {
277 			u8 pn[6];
278 		} __packed;
279 	} __packed;
280 } __packed;
281 
282 /*
283  * peer_idx
284  *		The index of the address search table which associated with
285  *		the peer table entry corresponding to this MPDU.  Only valid
286  *		when first_msdu is set.
287  *
288  * fr_ds
289  *		Set if the from DS bit is set in the frame control.  Only
290  *		valid when first_msdu is set.
291  *
292  * to_ds
293  *		Set if the to DS bit is set in the frame control.  Only
294  *		valid when first_msdu is set.
295  *
296  * encrypted
297  *		Protected bit from the frame control.  Only valid when
298  *		first_msdu is set.
299  *
300  * retry
301  *		Retry bit from the frame control.  Only valid when
302  *		first_msdu is set.
303  *
304  * txbf_h_info
305  *		The MPDU data will contain H information.  Primarily used
306  *		for debug.
307  *
308  * seq_num
309  *		The sequence number from the 802.11 header.  Only valid when
310  *		first_msdu is set.
311  *
312  * encrypt_type
313  *		Indicates type of decrypt cipher used (as defined in the
314  *		peer table)
315  *		0: WEP40
316  *		1: WEP104
317  *		2: TKIP without MIC
318  *		3: WEP128
319  *		4: TKIP (WPA)
320  *		5: WAPI
321  *		6: AES-CCM (WPA2)
322  *		7: No cipher
323  *		Only valid when first_msdu_is set
324  *
325  * pn_31_0
326  *		Bits [31:0] of the PN number extracted from the IV field
327  *		WEP: IV = {key_id_octet, pn2, pn1, pn0}.  Only pn[23:0] is
328  *		valid.
329  *		TKIP: IV = {pn5, pn4, pn3, pn2, key_id_octet, pn0,
330  *		WEPSeed[1], pn1}.  Only pn[47:0] is valid.
331  *		AES-CCM: IV = {pn5, pn4, pn3, pn2, key_id_octet, 0x0, pn1,
332  *		pn0}.  Only pn[47:0] is valid.
333  *		WAPI: IV = {key_id_octet, 0x0, pn15, pn14, pn13, pn12, pn11,
334  *		pn10, pn9, pn8, pn7, pn6, pn5, pn4, pn3, pn2, pn1, pn0}.
335  *		The ext_wapi_pn[127:48] in the rx_msdu_misc descriptor and
336  *		pn[47:0] are valid.
337  *		Only valid when first_msdu is set.
338  *
339  * pn_47_32
340  *		Bits [47:32] of the PN number.   See description for
341  *		pn_31_0.  The remaining PN fields are in the rx_msdu_end
342  *		descriptor
343  *
344  * pn
345  *		Use this field to access the pn without worrying about
346  *		byte-order and bitmasking/bitshifting.
347  *
348  * directed
349  *		See definition in RX attention descriptor
350  *
351  * reserved_2
352  *		Reserved: HW should fill with zero.  FW should ignore.
353  *
354  * tid
355  *		The TID field in the QoS control field
356  */
357 
358 #define RX_MPDU_END_INFO0_RESERVED_0_MASK     0x00001fff
359 #define RX_MPDU_END_INFO0_RESERVED_0_LSB      0
360 #define RX_MPDU_END_INFO0_POST_DELIM_CNT_MASK 0x0fff0000
361 #define RX_MPDU_END_INFO0_POST_DELIM_CNT_LSB  16
362 #define RX_MPDU_END_INFO0_OVERFLOW_ERR        BIT(13)
363 #define RX_MPDU_END_INFO0_LAST_MPDU           BIT(14)
364 #define RX_MPDU_END_INFO0_POST_DELIM_ERR      BIT(15)
365 #define RX_MPDU_END_INFO0_MPDU_LENGTH_ERR     BIT(28)
366 #define RX_MPDU_END_INFO0_TKIP_MIC_ERR        BIT(29)
367 #define RX_MPDU_END_INFO0_DECRYPT_ERR         BIT(30)
368 #define RX_MPDU_END_INFO0_FCS_ERR             BIT(31)
369 
370 struct rx_mpdu_end {
371 	__le32 info0;
372 } __packed;
373 
374 /*
375  * reserved_0
376  *		Reserved
377  *
378  * overflow_err
379  *		PCU Receive FIFO does not have enough space to store the
380  *		full receive packet.  Enough space is reserved in the
381  *		receive FIFO for the status is written.  This MPDU remaining
382  *		packets in the PPDU will be filtered and no Ack response
383  *		will be transmitted.
384  *
385  * last_mpdu
386  *		Indicates that this is the last MPDU of a PPDU.
387  *
388  * post_delim_err
389  *		Indicates that a delimiter FCS error occurred after this
390  *		MPDU before the next MPDU.  Only valid when last_msdu is
391  *		set.
392  *
393  * post_delim_cnt
394  *		Count of the delimiters after this MPDU.  This requires the
395  *		last MPDU to be held until all the EOF descriptors have been
396  *		received.  This may be inefficient in the future when
397  *		ML-MIMO is used.  Only valid when last_mpdu is set.
398  *
399  * mpdu_length_err
400  *		See definition in RX attention descriptor
401  *
402  * tkip_mic_err
403  *		See definition in RX attention descriptor
404  *
405  * decrypt_err
406  *		See definition in RX attention descriptor
407  *
408  * fcs_err
409  *		See definition in RX attention descriptor
410  */
411 
412 #define RX_MSDU_START_INFO0_MSDU_LENGTH_MASK    0x00003fff
413 #define RX_MSDU_START_INFO0_MSDU_LENGTH_LSB     0
414 #define RX_MSDU_START_INFO0_IP_OFFSET_MASK      0x000fc000
415 #define RX_MSDU_START_INFO0_IP_OFFSET_LSB       14
416 #define RX_MSDU_START_INFO0_RING_MASK_MASK      0x00f00000
417 #define RX_MSDU_START_INFO0_RING_MASK_LSB       20
418 #define RX_MSDU_START_INFO0_TCP_UDP_OFFSET_MASK 0x7f000000
419 #define RX_MSDU_START_INFO0_TCP_UDP_OFFSET_LSB  24
420 
421 #define RX_MSDU_START_INFO1_MSDU_NUMBER_MASK    0x000000ff
422 #define RX_MSDU_START_INFO1_MSDU_NUMBER_LSB     0
423 #define RX_MSDU_START_INFO1_DECAP_FORMAT_MASK   0x00000300
424 #define RX_MSDU_START_INFO1_DECAP_FORMAT_LSB    8
425 #define RX_MSDU_START_INFO1_SA_IDX_MASK         0x07ff0000
426 #define RX_MSDU_START_INFO1_SA_IDX_LSB          16
427 #define RX_MSDU_START_INFO1_IPV4_PROTO          BIT(10)
428 #define RX_MSDU_START_INFO1_IPV6_PROTO          BIT(11)
429 #define RX_MSDU_START_INFO1_TCP_PROTO           BIT(12)
430 #define RX_MSDU_START_INFO1_UDP_PROTO           BIT(13)
431 #define RX_MSDU_START_INFO1_IP_FRAG             BIT(14)
432 #define RX_MSDU_START_INFO1_TCP_ONLY_ACK        BIT(15)
433 
434 #define RX_MSDU_START_INFO2_DA_IDX_MASK         0x000007ff
435 #define RX_MSDU_START_INFO2_DA_IDX_LSB          0
436 #define RX_MSDU_START_INFO2_IP_PROTO_FIELD_MASK 0x00ff0000
437 #define RX_MSDU_START_INFO2_IP_PROTO_FIELD_LSB  16
438 #define RX_MSDU_START_INFO2_DA_BCAST_MCAST      BIT(11)
439 
440 /* The decapped header (rx_hdr_status) contains the following:
441  *  a) 802.11 header
442  *  [padding to 4 bytes]
443  *  b) HW crypto parameter
444  *     - 0 bytes for no security
445  *     - 4 bytes for WEP
446  *     - 8 bytes for TKIP, AES
447  *  [padding to 4 bytes]
448  *  c) A-MSDU subframe header (14 bytes) if appliable
449  *  d) LLC/SNAP (RFC1042, 8 bytes)
450  *
451  * In case of A-MSDU only first frame in sequence contains (a) and (b).
452  */
453 enum rx_msdu_decap_format {
454 	RX_MSDU_DECAP_RAW = 0,
455 
456 	/* Note: QoS frames are reported as non-QoS. The rx_hdr_status in
457 	 * htt_rx_desc contains the original decapped 802.11 header.
458 	 */
459 	RX_MSDU_DECAP_NATIVE_WIFI = 1,
460 
461 	/* Payload contains an ethernet header (struct ethhdr). */
462 	RX_MSDU_DECAP_ETHERNET2_DIX = 2,
463 
464 	/* Payload contains two 48-bit addresses and 2-byte length (14 bytes
465 	 * total), followed by an RFC1042 header (8 bytes).
466 	 */
467 	RX_MSDU_DECAP_8023_SNAP_LLC = 3
468 };
469 
470 struct rx_msdu_start_common {
471 	__le32 info0; /* %RX_MSDU_START_INFO0_ */
472 	__le32 flow_id_crc;
473 	__le32 info1; /* %RX_MSDU_START_INFO1_ */
474 } __packed;
475 
476 struct rx_msdu_start_qca99x0 {
477 	__le32 info2; /* %RX_MSDU_START_INFO2_ */
478 } __packed;
479 
480 struct rx_msdu_start_wcn3990 {
481 	__le32 info2; /* %RX_MSDU_START_INFO2_ */
482 	__le32 info3; /* %RX_MSDU_START_INFO3_ */
483 } __packed;
484 
485 struct rx_msdu_start {
486 	struct rx_msdu_start_common common;
487 	union {
488 		struct rx_msdu_start_qca99x0 qca99x0;
489 		struct rx_msdu_start_wcn3990 wcn3990;
490 	} __packed;
491 } __packed;
492 
493 /*
494  * msdu_length
495  *		MSDU length in bytes after decapsulation.  This field is
496  *		still valid for MPDU frames without A-MSDU.  It still
497  *		represents MSDU length after decapsulation
498  *
499  * ip_offset
500  *		Indicates the IP offset in bytes from the start of the
501  *		packet after decapsulation.  Only valid if ipv4_proto or
502  *		ipv6_proto is set.
503  *
504  * ring_mask
505  *		Indicates the destination RX rings for this MSDU.
506  *
507  * tcp_udp_offset
508  *		Indicates the offset in bytes to the start of TCP or UDP
509  *		header from the start of the IP header after decapsulation.
510  *		Only valid if tcp_prot or udp_prot is set.  The value 0
511  *		indicates that the offset is longer than 127 bytes.
512  *
513  * reserved_0c
514  *		Reserved: HW should fill with zero.  FW should ignore.
515  *
516  * flow_id_crc
517  *		The flow_id_crc runs CRC32 on the following information:
518  *		IPv4 option: dest_addr[31:0], src_addr [31:0], {24'b0,
519  *		protocol[7:0]}.
520  *		IPv6 option: dest_addr[127:0], src_addr [127:0], {24'b0,
521  *		next_header[7:0]}
522  *		UDP case: sort_port[15:0], dest_port[15:0]
523  *		TCP case: sort_port[15:0], dest_port[15:0],
524  *		{header_length[3:0], 6'b0, flags[5:0], window_size[15:0]},
525  *		{16'b0, urgent_ptr[15:0]}, all options except 32-bit
526  *		timestamp.
527  *
528  * msdu_number
529  *		Indicates the MSDU number within a MPDU.  This value is
530  *		reset to zero at the start of each MPDU.  If the number of
531  *		MSDU exceeds 255 this number will wrap using modulo 256.
532  *
533  * decap_format
534  *		Indicates the format after decapsulation:
535  *		0: RAW: No decapsulation
536  *		1: Native WiFi
537  *		2: Ethernet 2 (DIX)
538  *		3: 802.3 (SNAP/LLC)
539  *
540  * ipv4_proto
541  *		Set if L2 layer indicates IPv4 protocol.
542  *
543  * ipv6_proto
544  *		Set if L2 layer indicates IPv6 protocol.
545  *
546  * tcp_proto
547  *		Set if the ipv4_proto or ipv6_proto are set and the IP
548  *		protocol indicates TCP.
549  *
550  * udp_proto
551  *		Set if the ipv4_proto or ipv6_proto are set and the IP
552  *			protocol indicates UDP.
553  *
554  * ip_frag
555  *		Indicates that either the IP More frag bit is set or IP frag
556  *		number is non-zero.  If set indicates that this is a
557  *		fragmented IP packet.
558  *
559  * tcp_only_ack
560  *		Set if only the TCP Ack bit is set in the TCP flags and if
561  *		the TCP payload is 0.
562  *
563  * sa_idx
564  *		The offset in the address table which matches the MAC source
565  *		address.
566  *
567  * reserved_2b
568  *		Reserved: HW should fill with zero.  FW should ignore.
569  */
570 
571 #define RX_MSDU_END_INFO0_REPORTED_MPDU_LENGTH_MASK 0x00003fff
572 #define RX_MSDU_END_INFO0_REPORTED_MPDU_LENGTH_LSB  0
573 #define RX_MSDU_END_INFO0_FIRST_MSDU                BIT(14)
574 #define RX_MSDU_END_INFO0_LAST_MSDU                 BIT(15)
575 #define RX_MSDU_END_INFO0_PRE_DELIM_ERR             BIT(30)
576 #define RX_MSDU_END_INFO0_RESERVED_3B               BIT(31)
577 
578 struct rx_msdu_end_common {
579 	__le16 ip_hdr_cksum;
580 	__le16 tcp_hdr_cksum;
581 	u8 key_id_octet;
582 	u8 classification_filter;
583 	u8 wapi_pn[10];
584 	__le32 info0;
585 } __packed;
586 
587 #define RX_MSDU_END_INFO1_TCP_FLAG_MASK     0x000001ff
588 #define RX_MSDU_END_INFO1_TCP_FLAG_LSB      0
589 #define RX_MSDU_END_INFO1_L3_HDR_PAD_MASK   0x00001c00
590 #define RX_MSDU_END_INFO1_L3_HDR_PAD_LSB    10
591 #define RX_MSDU_END_INFO1_WINDOW_SIZE_MASK  0xffff0000
592 #define RX_MSDU_END_INFO1_WINDOW_SIZE_LSB   16
593 #define RX_MSDU_END_INFO1_IRO_ELIGIBLE      BIT(9)
594 
595 #define RX_MSDU_END_INFO2_DA_OFFSET_MASK    0x0000003f
596 #define RX_MSDU_END_INFO2_DA_OFFSET_LSB     0
597 #define RX_MSDU_END_INFO2_SA_OFFSET_MASK    0x00000fc0
598 #define RX_MSDU_END_INFO2_SA_OFFSET_LSB     6
599 #define RX_MSDU_END_INFO2_TYPE_OFFSET_MASK  0x0003f000
600 #define RX_MSDU_END_INFO2_TYPE_OFFSET_LSB   12
601 
602 struct rx_msdu_end_qca99x0 {
603 	__le32 ipv6_crc;
604 	__le32 tcp_seq_no;
605 	__le32 tcp_ack_no;
606 	__le32 info1;
607 	__le32 info2;
608 } __packed;
609 
610 struct rx_msdu_end_wcn3990 {
611 	__le32 ipv6_crc;
612 	__le32 tcp_seq_no;
613 	__le32 tcp_ack_no;
614 	__le32 info1;
615 	__le32 info2;
616 	__le32 rule_indication_0;
617 	__le32 rule_indication_1;
618 	__le32 rule_indication_2;
619 	__le32 rule_indication_3;
620 } __packed;
621 
622 struct rx_msdu_end {
623 	struct rx_msdu_end_common common;
624 	union {
625 		struct rx_msdu_end_qca99x0 qca99x0;
626 		struct rx_msdu_end_wcn3990 wcn3990;
627 	} __packed;
628 } __packed;
629 
630 /*
631  *ip_hdr_chksum
632  *		This can include the IP header checksum or the pseudo header
633  *		checksum used by TCP/UDP checksum.
634  *
635  *tcp_udp_chksum
636  *		The value of the computed TCP/UDP checksum.  A mode bit
637  *		selects whether this checksum is the full checksum or the
638  *		partial checksum which does not include the pseudo header.
639  *
640  *key_id_octet
641  *		The key ID octet from the IV.  Only valid when first_msdu is
642  *		set.
643  *
644  *classification_filter
645  *		Indicates the number classification filter rule
646  *
647  *ext_wapi_pn_63_48
648  *		Extension PN (packet number) which is only used by WAPI.
649  *		This corresponds to WAPI PN bits [63:48] (pn6 and pn7).  The
650  *		WAPI PN bits [63:0] are in the pn field of the rx_mpdu_start
651  *		descriptor.
652  *
653  *ext_wapi_pn_95_64
654  *		Extension PN (packet number) which is only used by WAPI.
655  *		This corresponds to WAPI PN bits [95:64] (pn8, pn9, pn10 and
656  *		pn11).
657  *
658  *ext_wapi_pn_127_96
659  *		Extension PN (packet number) which is only used by WAPI.
660  *		This corresponds to WAPI PN bits [127:96] (pn12, pn13, pn14,
661  *		pn15).
662  *
663  *reported_mpdu_length
664  *		MPDU length before decapsulation.  Only valid when
665  *		first_msdu is set.  This field is taken directly from the
666  *		length field of the A-MPDU delimiter or the preamble length
667  *		field for non-A-MPDU frames.
668  *
669  *first_msdu
670  *		Indicates the first MSDU of A-MSDU.  If both first_msdu and
671  *		last_msdu are set in the MSDU then this is a non-aggregated
672  *		MSDU frame: normal MPDU.  Interior MSDU in an A-MSDU shall
673  *		have both first_mpdu and last_mpdu bits set to 0.
674  *
675  *last_msdu
676  *		Indicates the last MSDU of the A-MSDU.  MPDU end status is
677  *		only valid when last_msdu is set.
678  *
679  *reserved_3a
680  *		Reserved: HW should fill with zero.  FW should ignore.
681  *
682  *pre_delim_err
683  *		Indicates that the first delimiter had a FCS failure.  Only
684  *		valid when first_mpdu and first_msdu are set.
685  *
686  *reserved_3b
687  *		Reserved: HW should fill with zero.  FW should ignore.
688  */
689 
690 #define HTT_RX_PPDU_START_PREAMBLE_LEGACY        0x04
691 #define HTT_RX_PPDU_START_PREAMBLE_HT            0x08
692 #define HTT_RX_PPDU_START_PREAMBLE_HT_WITH_TXBF  0x09
693 #define HTT_RX_PPDU_START_PREAMBLE_VHT           0x0C
694 #define HTT_RX_PPDU_START_PREAMBLE_VHT_WITH_TXBF 0x0D
695 
696 #define RX_PPDU_START_INFO0_IS_GREENFIELD BIT(0)
697 
698 #define RX_PPDU_START_INFO1_L_SIG_RATE_MASK    0x0000000f
699 #define RX_PPDU_START_INFO1_L_SIG_RATE_LSB     0
700 #define RX_PPDU_START_INFO1_L_SIG_LENGTH_MASK  0x0001ffe0
701 #define RX_PPDU_START_INFO1_L_SIG_LENGTH_LSB   5
702 #define RX_PPDU_START_INFO1_L_SIG_TAIL_MASK    0x00fc0000
703 #define RX_PPDU_START_INFO1_L_SIG_TAIL_LSB     18
704 #define RX_PPDU_START_INFO1_PREAMBLE_TYPE_MASK 0xff000000
705 #define RX_PPDU_START_INFO1_PREAMBLE_TYPE_LSB  24
706 #define RX_PPDU_START_INFO1_L_SIG_RATE_SELECT  BIT(4)
707 #define RX_PPDU_START_INFO1_L_SIG_PARITY       BIT(17)
708 
709 #define RX_PPDU_START_INFO2_HT_SIG_VHT_SIG_A_1_MASK 0x00ffffff
710 #define RX_PPDU_START_INFO2_HT_SIG_VHT_SIG_A_1_LSB  0
711 
712 #define RX_PPDU_START_INFO3_HT_SIG_VHT_SIG_A_2_MASK 0x00ffffff
713 #define RX_PPDU_START_INFO3_HT_SIG_VHT_SIG_A_2_LSB  0
714 #define RX_PPDU_START_INFO3_TXBF_H_INFO             BIT(24)
715 
716 #define RX_PPDU_START_INFO4_VHT_SIG_B_MASK 0x1fffffff
717 #define RX_PPDU_START_INFO4_VHT_SIG_B_LSB  0
718 
719 #define RX_PPDU_START_INFO5_SERVICE_MASK 0x0000ffff
720 #define RX_PPDU_START_INFO5_SERVICE_LSB  0
721 
722 /* No idea what this flag means. It seems to be always set in rate. */
723 #define RX_PPDU_START_RATE_FLAG BIT(3)
724 
725 struct rx_ppdu_start {
726 	struct {
727 		u8 pri20_mhz;
728 		u8 ext20_mhz;
729 		u8 ext40_mhz;
730 		u8 ext80_mhz;
731 	} rssi_chains[4];
732 	u8 rssi_comb;
733 	__le16 rsvd0;
734 	u8 info0; /* %RX_PPDU_START_INFO0_ */
735 	__le32 info1; /* %RX_PPDU_START_INFO1_ */
736 	__le32 info2; /* %RX_PPDU_START_INFO2_ */
737 	__le32 info3; /* %RX_PPDU_START_INFO3_ */
738 	__le32 info4; /* %RX_PPDU_START_INFO4_ */
739 	__le32 info5; /* %RX_PPDU_START_INFO5_ */
740 } __packed;
741 
742 /*
743  * rssi_chain0_pri20
744  *		RSSI of RX PPDU on chain 0 of primary 20 MHz bandwidth.
745  *		Value of 0x80 indicates invalid.
746  *
747  * rssi_chain0_sec20
748  *		RSSI of RX PPDU on chain 0 of secondary 20 MHz bandwidth.
749  *		Value of 0x80 indicates invalid.
750  *
751  * rssi_chain0_sec40
752  *		RSSI of RX PPDU on chain 0 of secondary 40 MHz bandwidth.
753  *		Value of 0x80 indicates invalid.
754  *
755  * rssi_chain0_sec80
756  *		RSSI of RX PPDU on chain 0 of secondary 80 MHz bandwidth.
757  *		Value of 0x80 indicates invalid.
758  *
759  * rssi_chain1_pri20
760  *		RSSI of RX PPDU on chain 1 of primary 20 MHz bandwidth.
761  *		Value of 0x80 indicates invalid.
762  *
763  * rssi_chain1_sec20
764  *		RSSI of RX PPDU on chain 1 of secondary 20 MHz bandwidth.
765  *		Value of 0x80 indicates invalid.
766  *
767  * rssi_chain1_sec40
768  *		RSSI of RX PPDU on chain 1 of secondary 40 MHz bandwidth.
769  *		Value of 0x80 indicates invalid.
770  *
771  * rssi_chain1_sec80
772  *		RSSI of RX PPDU on chain 1 of secondary 80 MHz bandwidth.
773  *		Value of 0x80 indicates invalid.
774  *
775  * rssi_chain2_pri20
776  *		RSSI of RX PPDU on chain 2 of primary 20 MHz bandwidth.
777  *		Value of 0x80 indicates invalid.
778  *
779  * rssi_chain2_sec20
780  *		RSSI of RX PPDU on chain 2 of secondary 20 MHz bandwidth.
781  *		Value of 0x80 indicates invalid.
782  *
783  * rssi_chain2_sec40
784  *		RSSI of RX PPDU on chain 2 of secondary 40 MHz bandwidth.
785  *		Value of 0x80 indicates invalid.
786  *
787  * rssi_chain2_sec80
788  *		RSSI of RX PPDU on chain 2 of secondary 80 MHz bandwidth.
789  *		Value of 0x80 indicates invalid.
790  *
791  * rssi_chain3_pri20
792  *		RSSI of RX PPDU on chain 3 of primary 20 MHz bandwidth.
793  *		Value of 0x80 indicates invalid.
794  *
795  * rssi_chain3_sec20
796  *		RSSI of RX PPDU on chain 3 of secondary 20 MHz bandwidth.
797  *		Value of 0x80 indicates invalid.
798  *
799  * rssi_chain3_sec40
800  *		RSSI of RX PPDU on chain 3 of secondary 40 MHz bandwidth.
801  *		Value of 0x80 indicates invalid.
802  *
803  * rssi_chain3_sec80
804  *		RSSI of RX PPDU on chain 3 of secondary 80 MHz bandwidth.
805  *		Value of 0x80 indicates invalid.
806  *
807  * rssi_comb
808  *		The combined RSSI of RX PPDU of all active chains and
809  *		bandwidths.  Value of 0x80 indicates invalid.
810  *
811  * reserved_4a
812  *		Reserved: HW should fill with 0, FW should ignore.
813  *
814  * is_greenfield
815  *		Do we really support this?
816  *
817  * reserved_4b
818  *		Reserved: HW should fill with 0, FW should ignore.
819  *
820  * l_sig_rate
821  *		If l_sig_rate_select is 0:
822  *		0x8: OFDM 48 Mbps
823  *		0x9: OFDM 24 Mbps
824  *		0xA: OFDM 12 Mbps
825  *		0xB: OFDM 6 Mbps
826  *		0xC: OFDM 54 Mbps
827  *		0xD: OFDM 36 Mbps
828  *		0xE: OFDM 18 Mbps
829  *		0xF: OFDM 9 Mbps
830  *		If l_sig_rate_select is 1:
831  *		0x8: CCK 11 Mbps long preamble
832  *		0x9: CCK 5.5 Mbps long preamble
833  *		0xA: CCK 2 Mbps long preamble
834  *		0xB: CCK 1 Mbps long preamble
835  *		0xC: CCK 11 Mbps short preamble
836  *		0xD: CCK 5.5 Mbps short preamble
837  *		0xE: CCK 2 Mbps short preamble
838  *
839  * l_sig_rate_select
840  *		Legacy signal rate select.  If set then l_sig_rate indicates
841  *		CCK rates.  If clear then l_sig_rate indicates OFDM rates.
842  *
843  * l_sig_length
844  *		Length of legacy frame in octets.
845  *
846  * l_sig_parity
847  *		Odd parity over l_sig_rate and l_sig_length
848  *
849  * l_sig_tail
850  *		Tail bits for Viterbi decoder
851  *
852  * preamble_type
853  *		Indicates the type of preamble ahead:
854  *		0x4: Legacy (OFDM/CCK)
855  *		0x8: HT
856  *		0x9: HT with TxBF
857  *		0xC: VHT
858  *		0xD: VHT with TxBF
859  *		0x80 - 0xFF: Reserved for special baseband data types such
860  *		as radar and spectral scan.
861  *
862  * ht_sig_vht_sig_a_1
863  *		If preamble_type == 0x8 or 0x9
864  *		HT-SIG (first 24 bits)
865  *		If preamble_type == 0xC or 0xD
866  *		VHT-SIG A (first 24 bits)
867  *		Else
868  *		Reserved
869  *
870  * reserved_6
871  *		Reserved: HW should fill with 0, FW should ignore.
872  *
873  * ht_sig_vht_sig_a_2
874  *		If preamble_type == 0x8 or 0x9
875  *		HT-SIG (last 24 bits)
876  *		If preamble_type == 0xC or 0xD
877  *		VHT-SIG A (last 24 bits)
878  *		Else
879  *		Reserved
880  *
881  * txbf_h_info
882  *		Indicates that the packet data carries H information which
883  *		is used for TxBF debug.
884  *
885  * reserved_7
886  *		Reserved: HW should fill with 0, FW should ignore.
887  *
888  * vht_sig_b
889  *		WiFi 1.0 and WiFi 2.0 will likely have this field to be all
890  *		0s since the BB does not plan on decoding VHT SIG-B.
891  *
892  * reserved_8
893  *		Reserved: HW should fill with 0, FW should ignore.
894  *
895  * service
896  *		Service field from BB for OFDM, HT and VHT packets.  CCK
897  *		packets will have service field of 0.
898  *
899  * reserved_9
900  *		Reserved: HW should fill with 0, FW should ignore.
901  */
902 
903 #define RX_PPDU_END_FLAGS_PHY_ERR             BIT(0)
904 #define RX_PPDU_END_FLAGS_RX_LOCATION         BIT(1)
905 #define RX_PPDU_END_FLAGS_TXBF_H_INFO         BIT(2)
906 
907 #define RX_PPDU_END_INFO0_RX_ANTENNA_MASK     0x00ffffff
908 #define RX_PPDU_END_INFO0_RX_ANTENNA_LSB      0
909 #define RX_PPDU_END_INFO0_FLAGS_TX_HT_VHT_ACK BIT(24)
910 #define RX_PPDU_END_INFO0_BB_CAPTURED_CHANNEL BIT(25)
911 
912 #define RX_PPDU_END_INFO1_PEER_IDX_MASK       0x1ffc
913 #define RX_PPDU_END_INFO1_PEER_IDX_LSB        2
914 #define RX_PPDU_END_INFO1_BB_DATA             BIT(0)
915 #define RX_PPDU_END_INFO1_PEER_IDX_VALID      BIT(1)
916 #define RX_PPDU_END_INFO1_PPDU_DONE           BIT(15)
917 
918 struct rx_ppdu_end_common {
919 	__le32 evm_p0;
920 	__le32 evm_p1;
921 	__le32 evm_p2;
922 	__le32 evm_p3;
923 	__le32 evm_p4;
924 	__le32 evm_p5;
925 	__le32 evm_p6;
926 	__le32 evm_p7;
927 	__le32 evm_p8;
928 	__le32 evm_p9;
929 	__le32 evm_p10;
930 	__le32 evm_p11;
931 	__le32 evm_p12;
932 	__le32 evm_p13;
933 	__le32 evm_p14;
934 	__le32 evm_p15;
935 	__le32 tsf_timestamp;
936 	__le32 wb_timestamp;
937 } __packed;
938 
939 struct rx_ppdu_end_qca988x {
940 	u8 locationing_timestamp;
941 	u8 phy_err_code;
942 	__le16 flags; /* %RX_PPDU_END_FLAGS_ */
943 	__le32 info0; /* %RX_PPDU_END_INFO0_ */
944 	__le16 bb_length;
945 	__le16 info1; /* %RX_PPDU_END_INFO1_ */
946 } __packed;
947 
948 #define RX_PPDU_END_RTT_CORRELATION_VALUE_MASK 0x00ffffff
949 #define RX_PPDU_END_RTT_CORRELATION_VALUE_LSB  0
950 #define RX_PPDU_END_RTT_UNUSED_MASK            0x7f000000
951 #define RX_PPDU_END_RTT_UNUSED_LSB             24
952 #define RX_PPDU_END_RTT_NORMAL_MODE            BIT(31)
953 
954 struct rx_ppdu_end_qca6174 {
955 	u8 locationing_timestamp;
956 	u8 phy_err_code;
957 	__le16 flags; /* %RX_PPDU_END_FLAGS_ */
958 	__le32 info0; /* %RX_PPDU_END_INFO0_ */
959 	__le32 rtt; /* %RX_PPDU_END_RTT_ */
960 	__le16 bb_length;
961 	__le16 info1; /* %RX_PPDU_END_INFO1_ */
962 } __packed;
963 
964 #define RX_PKT_END_INFO0_RX_SUCCESS              BIT(0)
965 #define RX_PKT_END_INFO0_ERR_TX_INTERRUPT_RX     BIT(3)
966 #define RX_PKT_END_INFO0_ERR_OFDM_POWER_DROP     BIT(4)
967 #define RX_PKT_END_INFO0_ERR_OFDM_RESTART        BIT(5)
968 #define RX_PKT_END_INFO0_ERR_CCK_POWER_DROP      BIT(6)
969 #define RX_PKT_END_INFO0_ERR_CCK_RESTART         BIT(7)
970 
971 #define RX_LOCATION_INFO_RTT_CORR_VAL_MASK       0x0001ffff
972 #define RX_LOCATION_INFO_RTT_CORR_VAL_LSB        0
973 #define RX_LOCATION_INFO_FAC_STATUS_MASK         0x000c0000
974 #define RX_LOCATION_INFO_FAC_STATUS_LSB          18
975 #define RX_LOCATION_INFO_PKT_BW_MASK             0x00700000
976 #define RX_LOCATION_INFO_PKT_BW_LSB              20
977 #define RX_LOCATION_INFO_RTT_TX_FRAME_PHASE_MASK 0x01800000
978 #define RX_LOCATION_INFO_RTT_TX_FRAME_PHASE_LSB  23
979 #define RX_LOCATION_INFO_CIR_STATUS              BIT(17)
980 #define RX_LOCATION_INFO_RTT_MAC_PHY_PHASE       BIT(25)
981 #define RX_LOCATION_INFO_RTT_TX_DATA_START_X     BIT(26)
982 #define RX_LOCATION_INFO_HW_IFFT_MODE            BIT(30)
983 #define RX_LOCATION_INFO_RX_LOCATION_VALID       BIT(31)
984 
985 struct rx_pkt_end {
986 	__le32 info0; /* %RX_PKT_END_INFO0_ */
987 	__le32 phy_timestamp_1;
988 	__le32 phy_timestamp_2;
989 } __packed;
990 
991 struct rx_pkt_end_wcn3990 {
992 	__le32 info0; /* %RX_PKT_END_INFO0_ */
993 	__le64 phy_timestamp_1;
994 	__le64 phy_timestamp_2;
995 } __packed;
996 
997 #define RX_LOCATION_INFO0_RTT_FAC_LEGACY_MASK		0x00003fff
998 #define RX_LOCATION_INFO0_RTT_FAC_LEGACY_LSB		0
999 #define RX_LOCATION_INFO0_RTT_FAC_VHT_MASK		0x1fff8000
1000 #define RX_LOCATION_INFO0_RTT_FAC_VHT_LSB		15
1001 #define RX_LOCATION_INFO0_RTT_STRONGEST_CHAIN_MASK	0xc0000000
1002 #define RX_LOCATION_INFO0_RTT_STRONGEST_CHAIN_LSB	30
1003 #define RX_LOCATION_INFO0_RTT_FAC_LEGACY_STATUS		BIT(14)
1004 #define RX_LOCATION_INFO0_RTT_FAC_VHT_STATUS		BIT(29)
1005 
1006 #define RX_LOCATION_INFO1_RTT_PREAMBLE_TYPE_MASK	0x0000000c
1007 #define RX_LOCATION_INFO1_RTT_PREAMBLE_TYPE_LSB		2
1008 #define RX_LOCATION_INFO1_PKT_BW_MASK			0x00000030
1009 #define RX_LOCATION_INFO1_PKT_BW_LSB			4
1010 #define RX_LOCATION_INFO1_SKIP_P_SKIP_BTCF_MASK		0x0000ff00
1011 #define RX_LOCATION_INFO1_SKIP_P_SKIP_BTCF_LSB		8
1012 #define RX_LOCATION_INFO1_RTT_MSC_RATE_MASK		0x000f0000
1013 #define RX_LOCATION_INFO1_RTT_MSC_RATE_LSB		16
1014 #define RX_LOCATION_INFO1_RTT_PBD_LEG_BW_MASK		0x00300000
1015 #define RX_LOCATION_INFO1_RTT_PBD_LEG_BW_LSB		20
1016 #define RX_LOCATION_INFO1_TIMING_BACKOFF_MASK		0x07c00000
1017 #define RX_LOCATION_INFO1_TIMING_BACKOFF_LSB		22
1018 #define RX_LOCATION_INFO1_RTT_TX_FRAME_PHASE_MASK	0x18000000
1019 #define RX_LOCATION_INFO1_RTT_TX_FRAME_PHASE_LSB	27
1020 #define RX_LOCATION_INFO1_RTT_CFR_STATUS		BIT(0)
1021 #define RX_LOCATION_INFO1_RTT_CIR_STATUS		BIT(1)
1022 #define RX_LOCATION_INFO1_RTT_GI_TYPE			BIT(7)
1023 #define RX_LOCATION_INFO1_RTT_MAC_PHY_PHASE		BIT(29)
1024 #define RX_LOCATION_INFO1_RTT_TX_DATA_START_X_PHASE	BIT(30)
1025 #define RX_LOCATION_INFO1_RX_LOCATION_VALID		BIT(31)
1026 
1027 struct rx_location_info {
1028 	__le32 rx_location_info0; /* %RX_LOCATION_INFO0_ */
1029 	__le32 rx_location_info1; /* %RX_LOCATION_INFO1_ */
1030 } __packed;
1031 
1032 struct rx_location_info_wcn3990 {
1033 	__le32 rx_location_info0; /* %RX_LOCATION_INFO0_ */
1034 	__le32 rx_location_info1; /* %RX_LOCATION_INFO1_ */
1035 	__le32 rx_location_info2; /* %RX_LOCATION_INFO2_ */
1036 } __packed;
1037 
1038 enum rx_phy_ppdu_end_info0 {
1039 	RX_PHY_PPDU_END_INFO0_ERR_RADAR           = BIT(2),
1040 	RX_PHY_PPDU_END_INFO0_ERR_RX_ABORT        = BIT(3),
1041 	RX_PHY_PPDU_END_INFO0_ERR_RX_NAP          = BIT(4),
1042 	RX_PHY_PPDU_END_INFO0_ERR_OFDM_TIMING     = BIT(5),
1043 	RX_PHY_PPDU_END_INFO0_ERR_OFDM_PARITY     = BIT(6),
1044 	RX_PHY_PPDU_END_INFO0_ERR_OFDM_RATE       = BIT(7),
1045 	RX_PHY_PPDU_END_INFO0_ERR_OFDM_LENGTH     = BIT(8),
1046 	RX_PHY_PPDU_END_INFO0_ERR_OFDM_RESTART    = BIT(9),
1047 	RX_PHY_PPDU_END_INFO0_ERR_OFDM_SERVICE    = BIT(10),
1048 	RX_PHY_PPDU_END_INFO0_ERR_OFDM_POWER_DROP = BIT(11),
1049 	RX_PHY_PPDU_END_INFO0_ERR_CCK_BLOCKER     = BIT(12),
1050 	RX_PHY_PPDU_END_INFO0_ERR_CCK_TIMING      = BIT(13),
1051 	RX_PHY_PPDU_END_INFO0_ERR_CCK_HEADER_CRC  = BIT(14),
1052 	RX_PHY_PPDU_END_INFO0_ERR_CCK_RATE        = BIT(15),
1053 	RX_PHY_PPDU_END_INFO0_ERR_CCK_LENGTH      = BIT(16),
1054 	RX_PHY_PPDU_END_INFO0_ERR_CCK_RESTART     = BIT(17),
1055 	RX_PHY_PPDU_END_INFO0_ERR_CCK_SERVICE     = BIT(18),
1056 	RX_PHY_PPDU_END_INFO0_ERR_CCK_POWER_DROP  = BIT(19),
1057 	RX_PHY_PPDU_END_INFO0_ERR_HT_CRC          = BIT(20),
1058 	RX_PHY_PPDU_END_INFO0_ERR_HT_LENGTH       = BIT(21),
1059 	RX_PHY_PPDU_END_INFO0_ERR_HT_RATE         = BIT(22),
1060 	RX_PHY_PPDU_END_INFO0_ERR_HT_ZLF          = BIT(23),
1061 	RX_PHY_PPDU_END_INFO0_ERR_FALSE_RADAR_EXT = BIT(24),
1062 	RX_PHY_PPDU_END_INFO0_ERR_GREEN_FIELD     = BIT(25),
1063 	RX_PHY_PPDU_END_INFO0_ERR_SPECTRAL_SCAN   = BIT(26),
1064 	RX_PHY_PPDU_END_INFO0_ERR_RX_DYN_BW       = BIT(27),
1065 	RX_PHY_PPDU_END_INFO0_ERR_LEG_HT_MISMATCH = BIT(28),
1066 	RX_PHY_PPDU_END_INFO0_ERR_VHT_CRC         = BIT(29),
1067 	RX_PHY_PPDU_END_INFO0_ERR_VHT_SIGA        = BIT(30),
1068 	RX_PHY_PPDU_END_INFO0_ERR_VHT_LSIG        = BIT(31),
1069 };
1070 
1071 enum rx_phy_ppdu_end_info1 {
1072 	RX_PHY_PPDU_END_INFO1_ERR_VHT_NDP            = BIT(0),
1073 	RX_PHY_PPDU_END_INFO1_ERR_VHT_NSYM           = BIT(1),
1074 	RX_PHY_PPDU_END_INFO1_ERR_VHT_RX_EXT_SYM     = BIT(2),
1075 	RX_PHY_PPDU_END_INFO1_ERR_VHT_RX_SKIP_ID0    = BIT(3),
1076 	RX_PHY_PPDU_END_INFO1_ERR_VHT_RX_SKIP_ID1_62 = BIT(4),
1077 	RX_PHY_PPDU_END_INFO1_ERR_VHT_RX_SKIP_ID63   = BIT(5),
1078 	RX_PHY_PPDU_END_INFO1_ERR_OFDM_LDPC_DECODER  = BIT(6),
1079 	RX_PHY_PPDU_END_INFO1_ERR_DEFER_NAP          = BIT(7),
1080 	RX_PHY_PPDU_END_INFO1_ERR_FDOMAIN_TIMEOUT    = BIT(8),
1081 	RX_PHY_PPDU_END_INFO1_ERR_LSIG_REL_CHECK     = BIT(9),
1082 	RX_PHY_PPDU_END_INFO1_ERR_BT_COLLISION       = BIT(10),
1083 	RX_PHY_PPDU_END_INFO1_ERR_MU_FEEDBACK        = BIT(11),
1084 	RX_PHY_PPDU_END_INFO1_ERR_TX_INTERRUPT_RX    = BIT(12),
1085 	RX_PHY_PPDU_END_INFO1_ERR_RX_CBF             = BIT(13),
1086 };
1087 
1088 struct rx_phy_ppdu_end {
1089 	__le32 info0; /* %RX_PHY_PPDU_END_INFO0_ */
1090 	__le32 info1; /* %RX_PHY_PPDU_END_INFO1_ */
1091 } __packed;
1092 
1093 #define RX_PPDU_END_RX_TIMING_OFFSET_MASK          0x00000fff
1094 #define RX_PPDU_END_RX_TIMING_OFFSET_LSB           0
1095 
1096 #define RX_PPDU_END_RX_INFO_RX_ANTENNA_MASK        0x00ffffff
1097 #define RX_PPDU_END_RX_INFO_RX_ANTENNA_LSB         0
1098 #define RX_PPDU_END_RX_INFO_TX_HT_VHT_ACK          BIT(24)
1099 #define RX_PPDU_END_RX_INFO_RX_PKT_END_VALID       BIT(25)
1100 #define RX_PPDU_END_RX_INFO_RX_PHY_PPDU_END_VALID  BIT(26)
1101 #define RX_PPDU_END_RX_INFO_RX_TIMING_OFFSET_VALID BIT(27)
1102 #define RX_PPDU_END_RX_INFO_BB_CAPTURED_CHANNEL    BIT(28)
1103 #define RX_PPDU_END_RX_INFO_UNSUPPORTED_MU_NC      BIT(29)
1104 #define RX_PPDU_END_RX_INFO_OTP_TXBF_DISABLE       BIT(30)
1105 
1106 struct rx_ppdu_end_qca99x0 {
1107 	struct rx_pkt_end rx_pkt_end;
1108 	__le32 rx_location_info; /* %RX_LOCATION_INFO_ */
1109 	struct rx_phy_ppdu_end rx_phy_ppdu_end;
1110 	__le32 rx_timing_offset; /* %RX_PPDU_END_RX_TIMING_OFFSET_ */
1111 	__le32 rx_info; /* %RX_PPDU_END_RX_INFO_ */
1112 	__le16 bb_length;
1113 	__le16 info1; /* %RX_PPDU_END_INFO1_ */
1114 } __packed;
1115 
1116 struct rx_ppdu_end_qca9984 {
1117 	struct rx_pkt_end rx_pkt_end;
1118 	struct rx_location_info rx_location_info;
1119 	struct rx_phy_ppdu_end rx_phy_ppdu_end;
1120 	__le32 rx_timing_offset; /* %RX_PPDU_END_RX_TIMING_OFFSET_ */
1121 	__le32 rx_info; /* %RX_PPDU_END_RX_INFO_ */
1122 	__le16 bb_length;
1123 	__le16 info1; /* %RX_PPDU_END_INFO1_ */
1124 } __packed;
1125 
1126 struct rx_ppdu_end_wcn3990 {
1127 	struct rx_pkt_end_wcn3990 rx_pkt_end;
1128 	struct rx_location_info_wcn3990 rx_location_info;
1129 	struct rx_phy_ppdu_end rx_phy_ppdu_end;
1130 	__le32 rx_timing_offset;
1131 	__le32 reserved_info_0;
1132 	__le32 reserved_info_1;
1133 	__le32 rx_antenna_info;
1134 	__le32 rx_coex_info;
1135 	__le32 rx_mpdu_cnt_info;
1136 	__le64 phy_timestamp_tx;
1137 	__le32 rx_bb_length;
1138 } __packed;
1139 
1140 struct rx_ppdu_end {
1141 	struct rx_ppdu_end_common common;
1142 	union {
1143 		struct rx_ppdu_end_qca988x qca988x;
1144 		struct rx_ppdu_end_qca6174 qca6174;
1145 		struct rx_ppdu_end_qca99x0 qca99x0;
1146 		struct rx_ppdu_end_qca9984 qca9984;
1147 		struct rx_ppdu_end_wcn3990 wcn3990;
1148 	} __packed;
1149 } __packed;
1150 
1151 /*
1152  * evm_p0
1153  *		EVM for pilot 0.  Contain EVM for streams: 0, 1, 2 and 3.
1154  *
1155  * evm_p1
1156  *		EVM for pilot 1.  Contain EVM for streams: 0, 1, 2 and 3.
1157  *
1158  * evm_p2
1159  *		EVM for pilot 2.  Contain EVM for streams: 0, 1, 2 and 3.
1160  *
1161  * evm_p3
1162  *		EVM for pilot 3.  Contain EVM for streams: 0, 1, 2 and 3.
1163  *
1164  * evm_p4
1165  *		EVM for pilot 4.  Contain EVM for streams: 0, 1, 2 and 3.
1166  *
1167  * evm_p5
1168  *		EVM for pilot 5.  Contain EVM for streams: 0, 1, 2 and 3.
1169  *
1170  * evm_p6
1171  *		EVM for pilot 6.  Contain EVM for streams: 0, 1, 2 and 3.
1172  *
1173  * evm_p7
1174  *		EVM for pilot 7.  Contain EVM for streams: 0, 1, 2 and 3.
1175  *
1176  * evm_p8
1177  *		EVM for pilot 8.  Contain EVM for streams: 0, 1, 2 and 3.
1178  *
1179  * evm_p9
1180  *		EVM for pilot 9.  Contain EVM for streams: 0, 1, 2 and 3.
1181  *
1182  * evm_p10
1183  *		EVM for pilot 10.  Contain EVM for streams: 0, 1, 2 and 3.
1184  *
1185  * evm_p11
1186  *		EVM for pilot 11.  Contain EVM for streams: 0, 1, 2 and 3.
1187  *
1188  * evm_p12
1189  *		EVM for pilot 12.  Contain EVM for streams: 0, 1, 2 and 3.
1190  *
1191  * evm_p13
1192  *		EVM for pilot 13.  Contain EVM for streams: 0, 1, 2 and 3.
1193  *
1194  * evm_p14
1195  *		EVM for pilot 14.  Contain EVM for streams: 0, 1, 2 and 3.
1196  *
1197  * evm_p15
1198  *		EVM for pilot 15.  Contain EVM for streams: 0, 1, 2 and 3.
1199  *
1200  * tsf_timestamp
1201  *		Receive TSF timestamp sampled on the rising edge of
1202  *		rx_clear.  For PHY errors this may be the current TSF when
1203  *		phy_error is asserted if the rx_clear does not assert before
1204  *		the end of the PHY error.
1205  *
1206  * wb_timestamp
1207  *		WLAN/BT timestamp is a 1 usec resolution timestamp which
1208  *		does not get updated based on receive beacon like TSF.  The
1209  *		same rules for capturing tsf_timestamp are used to capture
1210  *		the wb_timestamp.
1211  *
1212  * locationing_timestamp
1213  *		Timestamp used for locationing.  This timestamp is used to
1214  *		indicate fractions of usec.  For example if the MAC clock is
1215  *		running at 80 MHz, the timestamp will increment every 12.5
1216  *		nsec.  The value starts at 0 and increments to 79 and
1217  *		returns to 0 and repeats.  This information is valid for
1218  *		every PPDU.  This information can be used in conjunction
1219  *		with wb_timestamp to capture large delta times.
1220  *
1221  * phy_err_code
1222  *		See the 1.10.8.1.2 for the list of the PHY error codes.
1223  *
1224  * phy_err
1225  *		Indicates a PHY error was detected for this PPDU.
1226  *
1227  * rx_location
1228  *		Indicates that location information was requested.
1229  *
1230  * txbf_h_info
1231  *		Indicates that the packet data carries H information which
1232  *		is used for TxBF debug.
1233  *
1234  * reserved_18
1235  *		Reserved: HW should fill with 0, FW should ignore.
1236  *
1237  * rx_antenna
1238  *		Receive antenna value
1239  *
1240  * tx_ht_vht_ack
1241  *		Indicates that a HT or VHT Ack/BA frame was transmitted in
1242  *		response to this receive packet.
1243  *
1244  * bb_captured_channel
1245  *		Indicates that the BB has captured a channel dump.  FW can
1246  *		then read the channel dump memory.  This may indicate that
1247  *		the channel was captured either based on PCU setting the
1248  *		capture_channel bit  BB descriptor or FW setting the
1249  *		capture_channel mode bit.
1250  *
1251  * reserved_19
1252  *		Reserved: HW should fill with 0, FW should ignore.
1253  *
1254  * bb_length
1255  *		Indicates the number of bytes of baseband information for
1256  *		PPDUs where the BB descriptor preamble type is 0x80 to 0xFF
1257  *		which indicates that this is not a normal PPDU but rather
1258  *		contains baseband debug information.
1259  *
1260  * reserved_20
1261  *		Reserved: HW should fill with 0, FW should ignore.
1262  *
1263  * ppdu_done
1264  *		PPDU end status is only valid when ppdu_done bit is set.
1265  *		Every time HW sets this bit in memory FW/SW must clear this
1266  *		bit in memory.  FW will initialize all the ppdu_done dword
1267  *		to 0.
1268  */
1269 
1270 #define FW_RX_DESC_INFO0_DISCARD  BIT(0)
1271 #define FW_RX_DESC_INFO0_FORWARD  BIT(1)
1272 #define FW_RX_DESC_INFO0_INSPECT  BIT(5)
1273 #define FW_RX_DESC_INFO0_EXT_MASK 0xC0
1274 #define FW_RX_DESC_INFO0_EXT_LSB  6
1275 
1276 struct fw_rx_desc_base {
1277 	u8 info0;
1278 } __packed;
1279 
1280 #endif /* _RX_DESC_H_ */
1281