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64 
65 #ifndef __iwl_fw_api_rx_h__
66 #define __iwl_fw_api_rx_h__
67 
68 /* API for pre-9000 hardware */
69 
70 #define IWL_RX_INFO_PHY_CNT 8
71 #define IWL_RX_INFO_ENERGY_ANT_ABC_IDX 1
72 #define IWL_RX_INFO_ENERGY_ANT_A_MSK 0x000000ff
73 #define IWL_RX_INFO_ENERGY_ANT_B_MSK 0x0000ff00
74 #define IWL_RX_INFO_ENERGY_ANT_C_MSK 0x00ff0000
75 #define IWL_RX_INFO_ENERGY_ANT_A_POS 0
76 #define IWL_RX_INFO_ENERGY_ANT_B_POS 8
77 #define IWL_RX_INFO_ENERGY_ANT_C_POS 16
78 
79 enum iwl_mac_context_info {
80 	MAC_CONTEXT_INFO_NONE,
81 	MAC_CONTEXT_INFO_GSCAN,
82 };
83 
84 /**
85  * struct iwl_rx_phy_info - phy info
86  * (REPLY_RX_PHY_CMD = 0xc0)
87  * @non_cfg_phy_cnt: non configurable DSP phy data byte count
88  * @cfg_phy_cnt: configurable DSP phy data byte count
89  * @stat_id: configurable DSP phy data set ID
90  * @reserved1: reserved
91  * @system_timestamp: GP2  at on air rise
92  * @timestamp: TSF at on air rise
93  * @beacon_time_stamp: beacon at on-air rise
94  * @phy_flags: general phy flags: band, modulation, ...
95  * @channel: channel number
96  * @non_cfg_phy: for various implementations of non_cfg_phy
97  * @rate_n_flags: RATE_MCS_*
98  * @byte_count: frame's byte-count
99  * @frame_time: frame's time on the air, based on byte count and frame rate
100  *	calculation
101  * @mac_active_msk: what MACs were active when the frame was received
102  * @mac_context_info: additional info on the context in which the frame was
103  *	received as defined in &enum iwl_mac_context_info
104  *
105  * Before each Rx, the device sends this data. It contains PHY information
106  * about the reception of the packet.
107  */
108 struct iwl_rx_phy_info {
109 	u8 non_cfg_phy_cnt;
110 	u8 cfg_phy_cnt;
111 	u8 stat_id;
112 	u8 reserved1;
113 	__le32 system_timestamp;
114 	__le64 timestamp;
115 	__le32 beacon_time_stamp;
116 	__le16 phy_flags;
117 	__le16 channel;
118 	__le32 non_cfg_phy[IWL_RX_INFO_PHY_CNT];
119 	__le32 rate_n_flags;
120 	__le32 byte_count;
121 	u8 mac_active_msk;
122 	u8 mac_context_info;
123 	__le16 frame_time;
124 } __packed;
125 
126 /*
127  * TCP offload Rx assist info
128  *
129  * bits 0:3 - reserved
130  * bits 4:7 - MIC CRC length
131  * bits 8:12 - MAC header length
132  * bit 13 - Padding indication
133  * bit 14 - A-AMSDU indication
134  * bit 15 - Offload enabled
135  */
136 enum iwl_csum_rx_assist_info {
137 	CSUM_RXA_RESERVED_MASK	= 0x000f,
138 	CSUM_RXA_MICSIZE_MASK	= 0x00f0,
139 	CSUM_RXA_HEADERLEN_MASK	= 0x1f00,
140 	CSUM_RXA_PADD		= BIT(13),
141 	CSUM_RXA_AMSDU		= BIT(14),
142 	CSUM_RXA_ENA		= BIT(15)
143 };
144 
145 /**
146  * struct iwl_rx_mpdu_res_start - phy info
147  * @byte_count: byte count of the frame
148  * @assist: see &enum iwl_csum_rx_assist_info
149  */
150 struct iwl_rx_mpdu_res_start {
151 	__le16 byte_count;
152 	__le16 assist;
153 } __packed; /* _RX_MPDU_RES_START_API_S_VER_2 */
154 
155 /**
156  * enum iwl_rx_phy_flags - to parse %iwl_rx_phy_info phy_flags
157  * @RX_RES_PHY_FLAGS_BAND_24: true if the packet was received on 2.4 band
158  * @RX_RES_PHY_FLAGS_MOD_CCK: modulation is CCK
159  * @RX_RES_PHY_FLAGS_SHORT_PREAMBLE: true if packet's preamble was short
160  * @RX_RES_PHY_FLAGS_NARROW_BAND: narrow band (<20 MHz) receive
161  * @RX_RES_PHY_FLAGS_ANTENNA: antenna on which the packet was received
162  * @RX_RES_PHY_FLAGS_ANTENNA_POS: antenna bit position
163  * @RX_RES_PHY_FLAGS_AGG: set if the packet was part of an A-MPDU
164  * @RX_RES_PHY_FLAGS_OFDM_HT: The frame was an HT frame
165  * @RX_RES_PHY_FLAGS_OFDM_GF: The frame used GF preamble
166  * @RX_RES_PHY_FLAGS_OFDM_VHT: The frame was a VHT frame
167  */
168 enum iwl_rx_phy_flags {
169 	RX_RES_PHY_FLAGS_BAND_24	= BIT(0),
170 	RX_RES_PHY_FLAGS_MOD_CCK	= BIT(1),
171 	RX_RES_PHY_FLAGS_SHORT_PREAMBLE	= BIT(2),
172 	RX_RES_PHY_FLAGS_NARROW_BAND	= BIT(3),
173 	RX_RES_PHY_FLAGS_ANTENNA	= (0x7 << 4),
174 	RX_RES_PHY_FLAGS_ANTENNA_POS	= 4,
175 	RX_RES_PHY_FLAGS_AGG		= BIT(7),
176 	RX_RES_PHY_FLAGS_OFDM_HT	= BIT(8),
177 	RX_RES_PHY_FLAGS_OFDM_GF	= BIT(9),
178 	RX_RES_PHY_FLAGS_OFDM_VHT	= BIT(10),
179 };
180 
181 /**
182  * enum iwl_mvm_rx_status - written by fw for each Rx packet
183  * @RX_MPDU_RES_STATUS_CRC_OK: CRC is fine
184  * @RX_MPDU_RES_STATUS_OVERRUN_OK: there was no RXE overflow
185  * @RX_MPDU_RES_STATUS_SRC_STA_FOUND: station was found
186  * @RX_MPDU_RES_STATUS_KEY_VALID: key was valid
187  * @RX_MPDU_RES_STATUS_KEY_PARAM_OK: key parameters were usable
188  * @RX_MPDU_RES_STATUS_ICV_OK: ICV is fine, if not, the packet is destroyed
189  * @RX_MPDU_RES_STATUS_MIC_OK: used for CCM alg only. TKIP MIC is checked
190  *	in the driver.
191  * @RX_MPDU_RES_STATUS_TTAK_OK: TTAK is fine
192  * @RX_MPDU_RES_STATUS_MNG_FRAME_REPLAY_ERR:  valid for alg = CCM_CMAC or
193  *	alg = CCM only. Checks replay attack for 11w frames. Relevant only if
194  *	%RX_MPDU_RES_STATUS_ROBUST_MNG_FRAME is set.
195  * @RX_MPDU_RES_STATUS_SEC_NO_ENC: this frame is not encrypted
196  * @RX_MPDU_RES_STATUS_SEC_WEP_ENC: this frame is encrypted using WEP
197  * @RX_MPDU_RES_STATUS_SEC_CCM_ENC: this frame is encrypted using CCM
198  * @RX_MPDU_RES_STATUS_SEC_TKIP_ENC: this frame is encrypted using TKIP
199  * @RX_MPDU_RES_STATUS_SEC_EXT_ENC: this frame is encrypted using extension
200  *	algorithm
201  * @RX_MPDU_RES_STATUS_SEC_CCM_CMAC_ENC: this frame is encrypted using CCM_CMAC
202  * @RX_MPDU_RES_STATUS_SEC_ENC_ERR: this frame couldn't be decrypted
203  * @RX_MPDU_RES_STATUS_SEC_ENC_MSK: bitmask of the encryption algorithm
204  * @RX_MPDU_RES_STATUS_DEC_DONE: this frame has been successfully decrypted
205  * @RX_MPDU_RES_STATUS_EXT_IV_BIT_CMP: extended IV (set with TKIP)
206  * @RX_MPDU_RES_STATUS_KEY_ID_CMP_BIT: key ID comparison done
207  * @RX_MPDU_RES_STATUS_ROBUST_MNG_FRAME: this frame is an 11w management frame
208  * @RX_MPDU_RES_STATUS_CSUM_DONE: checksum was done by the hw
209  * @RX_MPDU_RES_STATUS_CSUM_OK: checksum found no errors
210  * @RX_MPDU_RES_STATUS_STA_ID_MSK: station ID mask
211  * @RX_MDPU_RES_STATUS_STA_ID_SHIFT: station ID bit shift
212  * @RX_MPDU_RES_STATUS_FILTERING_MSK: filter status
213  * @RX_MPDU_RES_STATUS2_FILTERING_MSK: filter status 2
214  */
215 enum iwl_mvm_rx_status {
216 	RX_MPDU_RES_STATUS_CRC_OK			= BIT(0),
217 	RX_MPDU_RES_STATUS_OVERRUN_OK			= BIT(1),
218 	RX_MPDU_RES_STATUS_SRC_STA_FOUND		= BIT(2),
219 	RX_MPDU_RES_STATUS_KEY_VALID			= BIT(3),
220 	RX_MPDU_RES_STATUS_KEY_PARAM_OK			= BIT(4),
221 	RX_MPDU_RES_STATUS_ICV_OK			= BIT(5),
222 	RX_MPDU_RES_STATUS_MIC_OK			= BIT(6),
223 	RX_MPDU_RES_STATUS_TTAK_OK			= BIT(7),
224 	RX_MPDU_RES_STATUS_MNG_FRAME_REPLAY_ERR		= BIT(7),
225 	RX_MPDU_RES_STATUS_SEC_NO_ENC			= (0 << 8),
226 	RX_MPDU_RES_STATUS_SEC_WEP_ENC			= (1 << 8),
227 	RX_MPDU_RES_STATUS_SEC_CCM_ENC			= (2 << 8),
228 	RX_MPDU_RES_STATUS_SEC_TKIP_ENC			= (3 << 8),
229 	RX_MPDU_RES_STATUS_SEC_EXT_ENC			= (4 << 8),
230 	RX_MPDU_RES_STATUS_SEC_CCM_CMAC_ENC		= (6 << 8),
231 	RX_MPDU_RES_STATUS_SEC_ENC_ERR			= (7 << 8),
232 	RX_MPDU_RES_STATUS_SEC_ENC_MSK			= (7 << 8),
233 	RX_MPDU_RES_STATUS_DEC_DONE			= BIT(11),
234 	RX_MPDU_RES_STATUS_EXT_IV_BIT_CMP		= BIT(13),
235 	RX_MPDU_RES_STATUS_KEY_ID_CMP_BIT		= BIT(14),
236 	RX_MPDU_RES_STATUS_ROBUST_MNG_FRAME		= BIT(15),
237 	RX_MPDU_RES_STATUS_CSUM_DONE			= BIT(16),
238 	RX_MPDU_RES_STATUS_CSUM_OK			= BIT(17),
239 	RX_MDPU_RES_STATUS_STA_ID_SHIFT			= 24,
240 	RX_MPDU_RES_STATUS_STA_ID_MSK			= 0x1f << RX_MDPU_RES_STATUS_STA_ID_SHIFT,
241 	RX_MPDU_RES_STATUS_FILTERING_MSK		= (0xc00000),
242 	RX_MPDU_RES_STATUS2_FILTERING_MSK		= (0xc0000000),
243 };
244 
245 /* 9000 series API */
246 enum iwl_rx_mpdu_mac_flags1 {
247 	IWL_RX_MDPU_MFLG1_ADDRTYPE_MASK		= 0x03,
248 	IWL_RX_MPDU_MFLG1_MIC_CRC_LEN_MASK	= 0xf0,
249 	/* shift should be 4, but the length is measured in 2-byte
250 	 * words, so shifting only by 3 gives a byte result
251 	 */
252 	IWL_RX_MPDU_MFLG1_MIC_CRC_LEN_SHIFT	= 3,
253 };
254 
255 enum iwl_rx_mpdu_mac_flags2 {
256 	/* in 2-byte words */
257 	IWL_RX_MPDU_MFLG2_HDR_LEN_MASK		= 0x1f,
258 	IWL_RX_MPDU_MFLG2_PAD			= 0x20,
259 	IWL_RX_MPDU_MFLG2_AMSDU			= 0x40,
260 };
261 
262 enum iwl_rx_mpdu_amsdu_info {
263 	IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK	= 0x7f,
264 	IWL_RX_MPDU_AMSDU_LAST_SUBFRAME		= 0x80,
265 };
266 
267 enum iwl_rx_l3_proto_values {
268 	IWL_RX_L3_TYPE_NONE,
269 	IWL_RX_L3_TYPE_IPV4,
270 	IWL_RX_L3_TYPE_IPV4_FRAG,
271 	IWL_RX_L3_TYPE_IPV6_FRAG,
272 	IWL_RX_L3_TYPE_IPV6,
273 	IWL_RX_L3_TYPE_IPV6_IN_IPV4,
274 	IWL_RX_L3_TYPE_ARP,
275 	IWL_RX_L3_TYPE_EAPOL,
276 };
277 
278 #define IWL_RX_L3_PROTO_POS 4
279 
280 enum iwl_rx_l3l4_flags {
281 	IWL_RX_L3L4_IP_HDR_CSUM_OK		= BIT(0),
282 	IWL_RX_L3L4_TCP_UDP_CSUM_OK		= BIT(1),
283 	IWL_RX_L3L4_TCP_FIN_SYN_RST_PSH		= BIT(2),
284 	IWL_RX_L3L4_TCP_ACK			= BIT(3),
285 	IWL_RX_L3L4_L3_PROTO_MASK		= 0xf << IWL_RX_L3_PROTO_POS,
286 	IWL_RX_L3L4_L4_PROTO_MASK		= 0xf << 8,
287 	IWL_RX_L3L4_RSS_HASH_MASK		= 0xf << 12,
288 };
289 
290 enum iwl_rx_mpdu_status {
291 	IWL_RX_MPDU_STATUS_CRC_OK		= BIT(0),
292 	IWL_RX_MPDU_STATUS_OVERRUN_OK		= BIT(1),
293 	IWL_RX_MPDU_STATUS_SRC_STA_FOUND	= BIT(2),
294 	IWL_RX_MPDU_STATUS_KEY_VALID		= BIT(3),
295 	IWL_RX_MPDU_STATUS_KEY_PARAM_OK		= BIT(4),
296 	IWL_RX_MPDU_STATUS_ICV_OK		= BIT(5),
297 	IWL_RX_MPDU_STATUS_MIC_OK		= BIT(6),
298 	IWL_RX_MPDU_RES_STATUS_TTAK_OK		= BIT(7),
299 	IWL_RX_MPDU_STATUS_SEC_MASK		= 0x7 << 8,
300 	IWL_RX_MPDU_STATUS_SEC_UNKNOWN		= IWL_RX_MPDU_STATUS_SEC_MASK,
301 	IWL_RX_MPDU_STATUS_SEC_NONE		= 0x0 << 8,
302 	IWL_RX_MPDU_STATUS_SEC_WEP		= 0x1 << 8,
303 	IWL_RX_MPDU_STATUS_SEC_CCM		= 0x2 << 8,
304 	IWL_RX_MPDU_STATUS_SEC_TKIP		= 0x3 << 8,
305 	IWL_RX_MPDU_STATUS_SEC_EXT_ENC		= 0x4 << 8,
306 	IWL_RX_MPDU_STATUS_SEC_GCM		= 0x5 << 8,
307 	IWL_RX_MPDU_STATUS_DECRYPTED		= BIT(11),
308 	IWL_RX_MPDU_STATUS_WEP_MATCH		= BIT(12),
309 	IWL_RX_MPDU_STATUS_EXT_IV_MATCH		= BIT(13),
310 	IWL_RX_MPDU_STATUS_KEY_ID_MATCH		= BIT(14),
311 	IWL_RX_MPDU_STATUS_ROBUST_MNG_FRAME	= BIT(15),
312 };
313 
314 enum iwl_rx_mpdu_hash_filter {
315 	IWL_RX_MPDU_HF_A1_HASH_MASK		= 0x3f,
316 	IWL_RX_MPDU_HF_FILTER_STATUS_MASK	= 0xc0,
317 };
318 
319 enum iwl_rx_mpdu_sta_id_flags {
320 	IWL_RX_MPDU_SIF_STA_ID_MASK		= 0x1f,
321 	IWL_RX_MPDU_SIF_RRF_ABORT		= 0x20,
322 	IWL_RX_MPDU_SIF_FILTER_STATUS_MASK	= 0xc0,
323 };
324 
325 #define IWL_RX_REORDER_DATA_INVALID_BAID 0x7f
326 
327 enum iwl_rx_mpdu_reorder_data {
328 	IWL_RX_MPDU_REORDER_NSSN_MASK		= 0x00000fff,
329 	IWL_RX_MPDU_REORDER_SN_MASK		= 0x00fff000,
330 	IWL_RX_MPDU_REORDER_SN_SHIFT		= 12,
331 	IWL_RX_MPDU_REORDER_BAID_MASK		= 0x7f000000,
332 	IWL_RX_MPDU_REORDER_BAID_SHIFT		= 24,
333 	IWL_RX_MPDU_REORDER_BA_OLD_SN		= 0x80000000,
334 };
335 
336 enum iwl_rx_mpdu_phy_info {
337 	IWL_RX_MPDU_PHY_AMPDU		= BIT(5),
338 	IWL_RX_MPDU_PHY_AMPDU_TOGGLE	= BIT(6),
339 	IWL_RX_MPDU_PHY_SHORT_PREAMBLE	= BIT(7),
340 	IWL_RX_MPDU_PHY_TSF_OVERLOAD	= BIT(8),
341 };
342 
343 enum iwl_rx_mpdu_mac_info {
344 	IWL_RX_MPDU_PHY_MAC_INDEX_MASK		= 0x0f,
345 	IWL_RX_MPDU_PHY_PHY_INDEX_MASK		= 0xf0,
346 };
347 
348 /*
349  * enum iwl_rx_he_phy - HE PHY data
350  */
351 enum iwl_rx_he_phy {
352 	IWL_RX_HE_PHY_BEAM_CHNG			= BIT(0),
353 	IWL_RX_HE_PHY_UPLINK			= BIT(1),
354 	IWL_RX_HE_PHY_BSS_COLOR_MASK		= 0xfc,
355 	IWL_RX_HE_PHY_SPATIAL_REUSE_MASK	= 0xf00,
356 	IWL_RX_HE_PHY_SU_EXT_BW10		= BIT(12),
357 	IWL_RX_HE_PHY_TXOP_DUR_MASK		= 0xfe000,
358 	IWL_RX_HE_PHY_LDPC_EXT_SYM		= BIT(20),
359 	IWL_RX_HE_PHY_PRE_FEC_PAD_MASK		= 0x600000,
360 	IWL_RX_HE_PHY_PE_DISAMBIG		= BIT(23),
361 	IWL_RX_HE_PHY_DOPPLER			= BIT(24),
362 	/* 6 bits reserved */
363 	IWL_RX_HE_PHY_DELIM_EOF			= BIT(31),
364 
365 	/* second dword - MU data */
366 	IWL_RX_HE_PHY_SIGB_COMPRESSION		= BIT_ULL(32 + 0),
367 	IWL_RX_HE_PHY_SIBG_SYM_OR_USER_NUM_MASK	= 0x1e00000000ULL,
368 	IWL_RX_HE_PHY_HE_LTF_NUM_MASK		= 0xe000000000ULL,
369 	IWL_RX_HE_PHY_RU_ALLOC_SEC80		= BIT_ULL(32 + 8),
370 	/* trigger encoded */
371 	IWL_RX_HE_PHY_RU_ALLOC_MASK		= 0xfe0000000000ULL,
372 	IWL_RX_HE_PHY_SIGB_MCS_MASK		= 0xf000000000000ULL,
373 	/* 1 bit reserved */
374 	IWL_RX_HE_PHY_SIGB_DCM			= BIT_ULL(32 + 21),
375 	IWL_RX_HE_PHY_PREAMBLE_PUNC_TYPE_MASK	= 0xc0000000000000ULL,
376 	/* 8 bits reserved */
377 };
378 
379 /**
380  * struct iwl_rx_mpdu_desc_v1 - RX MPDU descriptor
381  */
382 struct iwl_rx_mpdu_desc_v1 {
383 	/* DW7 - carries rss_hash only when rpa_en == 1 */
384 	/**
385 	 * @rss_hash: RSS hash value
386 	 */
387 	__le32 rss_hash;
388 	/* DW8 - carries filter_match only when rpa_en == 1 */
389 	/**
390 	 * @filter_match: filter match value
391 	 */
392 	__le32 filter_match;
393 	/* DW9 */
394 	/**
395 	 * @rate_n_flags: RX rate/flags encoding
396 	 */
397 	__le32 rate_n_flags;
398 	/* DW10 */
399 	/**
400 	 * @energy_a: energy chain A
401 	 */
402 	u8 energy_a;
403 	/**
404 	 * @energy_b: energy chain B
405 	 */
406 	u8 energy_b;
407 	/**
408 	 * @channel: channel number
409 	 */
410 	u8 channel;
411 	/**
412 	 * @mac_context: MAC context mask
413 	 */
414 	u8 mac_context;
415 	/* DW11 */
416 	/**
417 	 * @gp2_on_air_rise: GP2 timer value on air rise (INA)
418 	 */
419 	__le32 gp2_on_air_rise;
420 	/* DW12 & DW13 */
421 	union {
422 		/**
423 		 * @tsf_on_air_rise:
424 		 * TSF value on air rise (INA), only valid if
425 		 * %IWL_RX_MPDU_PHY_TSF_OVERLOAD isn't set
426 		 */
427 		__le64 tsf_on_air_rise;
428 		/**
429 		 * @he_phy_data:
430 		 * HE PHY data, see &enum iwl_rx_he_phy, valid
431 		 * only if %IWL_RX_MPDU_PHY_TSF_OVERLOAD is set
432 		 */
433 		__le64 he_phy_data;
434 	};
435 } __packed;
436 
437 /**
438  * struct iwl_rx_mpdu_desc_v3 - RX MPDU descriptor
439  */
440 struct iwl_rx_mpdu_desc_v3 {
441 	/* DW7 - carries filter_match only when rpa_en == 1 */
442 	/**
443 	 * @filter_match: filter match value
444 	 */
445 	__le32 filter_match;
446 	/* DW8 - carries rss_hash only when rpa_en == 1 */
447 	/**
448 	 * @rss_hash: RSS hash value
449 	 */
450 	__le32 rss_hash;
451 	/* DW9 */
452 	/**
453 	 * @partial_hash: 31:0 ip/tcp header hash
454 	 *	w/o some fields (such as IP SRC addr)
455 	 */
456 	__le32 partial_hash;
457 	/* DW10 */
458 	/**
459 	 * @raw_xsum: raw xsum value
460 	 */
461 	__le32 raw_xsum;
462 	/* DW11 */
463 	/**
464 	 * @rate_n_flags: RX rate/flags encoding
465 	 */
466 	__le32 rate_n_flags;
467 	/* DW12 */
468 	/**
469 	 * @energy_a: energy chain A
470 	 */
471 	u8 energy_a;
472 	/**
473 	 * @energy_b: energy chain B
474 	 */
475 	u8 energy_b;
476 	/**
477 	 * @channel: channel number
478 	 */
479 	u8 channel;
480 	/**
481 	 * @mac_context: MAC context mask
482 	 */
483 	u8 mac_context;
484 	/* DW13 */
485 	/**
486 	 * @gp2_on_air_rise: GP2 timer value on air rise (INA)
487 	 */
488 	__le32 gp2_on_air_rise;
489 	/* DW14 & DW15 */
490 	union {
491 		/**
492 		 * @tsf_on_air_rise:
493 		 * TSF value on air rise (INA), only valid if
494 		 * %IWL_RX_MPDU_PHY_TSF_OVERLOAD isn't set
495 		 */
496 		__le64 tsf_on_air_rise;
497 		/**
498 		 * @he_phy_data:
499 		 * HE PHY data, see &enum iwl_rx_he_phy, valid
500 		 * only if %IWL_RX_MPDU_PHY_TSF_OVERLOAD is set
501 		 */
502 		__le64 he_phy_data;
503 	};
504 	/* DW16 & DW17 */
505 	/**
506 	 * @reserved: reserved
507 	 */
508 	__le32 reserved[2];
509 } __packed; /* RX_MPDU_RES_START_API_S_VER_3 */
510 
511 /**
512  * struct iwl_rx_mpdu_desc - RX MPDU descriptor
513  */
514 struct iwl_rx_mpdu_desc {
515 	/* DW2 */
516 	/**
517 	 * @mpdu_len: MPDU length
518 	 */
519 	__le16 mpdu_len;
520 	/**
521 	 * @mac_flags1: &enum iwl_rx_mpdu_mac_flags1
522 	 */
523 	u8 mac_flags1;
524 	/**
525 	 * @mac_flags2: &enum iwl_rx_mpdu_mac_flags2
526 	 */
527 	u8 mac_flags2;
528 	/* DW3 */
529 	/**
530 	 * @amsdu_info: &enum iwl_rx_mpdu_amsdu_info
531 	 */
532 	u8 amsdu_info;
533 	/**
534 	 * @phy_info: &enum iwl_rx_mpdu_phy_info
535 	 */
536 	__le16 phy_info;
537 	/**
538 	 * @mac_phy_idx: MAC/PHY index
539 	 */
540 	u8 mac_phy_idx;
541 	/* DW4 - carries csum data only when rpa_en == 1 */
542 	/**
543 	 * @raw_csum: raw checksum (alledgedly unreliable)
544 	 */
545 	__le16 raw_csum;
546 	/**
547 	 * @l3l4_flags: &enum iwl_rx_l3l4_flags
548 	 */
549 	__le16 l3l4_flags;
550 	/* DW5 */
551 	/**
552 	 * @status: &enum iwl_rx_mpdu_status
553 	 */
554 	__le16 status;
555 	/**
556 	 * @hash_filter: hash filter value
557 	 */
558 	u8 hash_filter;
559 	/**
560 	 * @sta_id_flags: &enum iwl_rx_mpdu_sta_id_flags
561 	 */
562 	u8 sta_id_flags;
563 	/* DW6 */
564 	/**
565 	 * @reorder_data: &enum iwl_rx_mpdu_reorder_data
566 	 */
567 	__le32 reorder_data;
568 
569 	union {
570 		struct iwl_rx_mpdu_desc_v1 v1;
571 		struct iwl_rx_mpdu_desc_v3 v3;
572 	};
573 } __packed; /* RX_MPDU_RES_START_API_S_VER_3 */
574 
575 #define IWL_RX_DESC_SIZE_V1 offsetofend(struct iwl_rx_mpdu_desc, v1)
576 
577 struct iwl_frame_release {
578 	u8 baid;
579 	u8 reserved;
580 	__le16 nssn;
581 };
582 
583 enum iwl_rss_hash_func_en {
584 	IWL_RSS_HASH_TYPE_IPV4_TCP,
585 	IWL_RSS_HASH_TYPE_IPV4_UDP,
586 	IWL_RSS_HASH_TYPE_IPV4_PAYLOAD,
587 	IWL_RSS_HASH_TYPE_IPV6_TCP,
588 	IWL_RSS_HASH_TYPE_IPV6_UDP,
589 	IWL_RSS_HASH_TYPE_IPV6_PAYLOAD,
590 };
591 
592 #define IWL_RSS_HASH_KEY_CNT 10
593 #define IWL_RSS_INDIRECTION_TABLE_SIZE 128
594 #define IWL_RSS_ENABLE 1
595 
596 /**
597  * struct iwl_rss_config_cmd - RSS (Receive Side Scaling) configuration
598  *
599  * @flags: 1 - enable, 0 - disable
600  * @hash_mask: Type of RSS to use. Values are from %iwl_rss_hash_func_en
601  * @reserved: reserved
602  * @secret_key: 320 bit input of random key configuration from driver
603  * @indirection_table: indirection table
604  */
605 struct iwl_rss_config_cmd {
606 	__le32 flags;
607 	u8 hash_mask;
608 	u8 reserved[3];
609 	__le32 secret_key[IWL_RSS_HASH_KEY_CNT];
610 	u8 indirection_table[IWL_RSS_INDIRECTION_TABLE_SIZE];
611 } __packed; /* RSS_CONFIG_CMD_API_S_VER_1 */
612 
613 #define IWL_MULTI_QUEUE_SYNC_MSG_MAX_SIZE 128
614 #define IWL_MULTI_QUEUE_SYNC_SENDER_POS 0
615 #define IWL_MULTI_QUEUE_SYNC_SENDER_MSK 0xf
616 
617 /**
618  * struct iwl_rxq_sync_cmd - RXQ notification trigger
619  *
620  * @flags: flags of the notification. bit 0:3 are the sender queue
621  * @rxq_mask: rx queues to send the notification on
622  * @count: number of bytes in payload, should be DWORD aligned
623  * @payload: data to send to rx queues
624  */
625 struct iwl_rxq_sync_cmd {
626 	__le32 flags;
627 	__le32 rxq_mask;
628 	__le32 count;
629 	u8 payload[];
630 } __packed; /* MULTI_QUEUE_DRV_SYNC_HDR_CMD_API_S_VER_1 */
631 
632 /**
633  * struct iwl_rxq_sync_notification - Notification triggered by RXQ
634  * sync command
635  *
636  * @count: number of bytes in payload
637  * @payload: data to send to rx queues
638  */
639 struct iwl_rxq_sync_notification {
640 	__le32 count;
641 	u8 payload[];
642 } __packed; /* MULTI_QUEUE_DRV_SYNC_HDR_CMD_API_S_VER_1 */
643 
644 /**
645  * enum iwl_mvm_rxq_notif_type - Internal message identifier
646  *
647  * @IWL_MVM_RXQ_EMPTY: empty sync notification
648  * @IWL_MVM_RXQ_NOTIF_DEL_BA: notify RSS queues of delBA
649  */
650 enum iwl_mvm_rxq_notif_type {
651 	IWL_MVM_RXQ_EMPTY,
652 	IWL_MVM_RXQ_NOTIF_DEL_BA,
653 };
654 
655 /**
656  * struct iwl_mvm_internal_rxq_notif - Internal representation of the data sent
657  * in &iwl_rxq_sync_cmd. Should be DWORD aligned.
658  * FW is agnostic to the payload, so there are no endianity requirements.
659  *
660  * @type: value from &iwl_mvm_rxq_notif_type
661  * @sync: ctrl path is waiting for all notifications to be received
662  * @cookie: internal cookie to identify old notifications
663  * @data: payload
664  */
665 struct iwl_mvm_internal_rxq_notif {
666 	u16 type;
667 	u16 sync;
668 	u32 cookie;
669 	u8 data[];
670 } __packed;
671 
672 /**
673  * enum iwl_mvm_pm_event - type of station PM event
674  * @IWL_MVM_PM_EVENT_AWAKE: station woke up
675  * @IWL_MVM_PM_EVENT_ASLEEP: station went to sleep
676  * @IWL_MVM_PM_EVENT_UAPSD: station sent uAPSD trigger
677  * @IWL_MVM_PM_EVENT_PS_POLL: station sent PS-Poll
678  */
679 enum iwl_mvm_pm_event {
680 	IWL_MVM_PM_EVENT_AWAKE,
681 	IWL_MVM_PM_EVENT_ASLEEP,
682 	IWL_MVM_PM_EVENT_UAPSD,
683 	IWL_MVM_PM_EVENT_PS_POLL,
684 }; /* PEER_PM_NTFY_API_E_VER_1 */
685 
686 /**
687  * struct iwl_mvm_pm_state_notification - station PM state notification
688  * @sta_id: station ID of the station changing state
689  * @type: the new powersave state, see &enum iwl_mvm_pm_event
690  */
691 struct iwl_mvm_pm_state_notification {
692 	u8 sta_id;
693 	u8 type;
694 	/* private: */
695 	__le16 reserved;
696 } __packed; /* PEER_PM_NTFY_API_S_VER_1 */
697 
698 #define BA_WINDOW_STREAMS_MAX		16
699 #define BA_WINDOW_STATUS_TID_MSK	0x000F
700 #define BA_WINDOW_STATUS_STA_ID_POS	4
701 #define BA_WINDOW_STATUS_STA_ID_MSK	0x01F0
702 #define BA_WINDOW_STATUS_VALID_MSK	BIT(9)
703 
704 /**
705  * struct iwl_ba_window_status_notif - reordering window's status notification
706  * @bitmap: bitmap of received frames [start_seq_num + 0]..[start_seq_num + 63]
707  * @ra_tid: bit 3:0 - TID, bit 8:4 - STA_ID, bit 9 - valid
708  * @start_seq_num: the start sequence number of the bitmap
709  * @mpdu_rx_count: the number of received MPDUs since entering D0i3
710  */
711 struct iwl_ba_window_status_notif {
712 	__le64 bitmap[BA_WINDOW_STREAMS_MAX];
713 	__le16 ra_tid[BA_WINDOW_STREAMS_MAX];
714 	__le32 start_seq_num[BA_WINDOW_STREAMS_MAX];
715 	__le16 mpdu_rx_count[BA_WINDOW_STREAMS_MAX];
716 } __packed; /* BA_WINDOW_STATUS_NTFY_API_S_VER_1 */
717 
718 /**
719  * struct iwl_rfh_queue_config - RX queue configuration
720  * @q_num: Q num
721  * @enable: enable queue
722  * @reserved: alignment
723  * @urbd_stts_wrptr: DMA address of urbd_stts_wrptr
724  * @fr_bd_cb: DMA address of freeRB table
725  * @ur_bd_cb: DMA address of used RB table
726  * @fr_bd_wid: Initial index of the free table
727  */
728 struct iwl_rfh_queue_data {
729 	u8 q_num;
730 	u8 enable;
731 	__le16 reserved;
732 	__le64 urbd_stts_wrptr;
733 	__le64 fr_bd_cb;
734 	__le64 ur_bd_cb;
735 	__le32 fr_bd_wid;
736 } __packed; /* RFH_QUEUE_CONFIG_S_VER_1 */
737 
738 /**
739  * struct iwl_rfh_queue_config - RX queue configuration
740  * @num_queues: number of queues configured
741  * @reserved: alignment
742  * @data: DMA addresses per-queue
743  */
744 struct iwl_rfh_queue_config {
745 	u8 num_queues;
746 	u8 reserved[3];
747 	struct iwl_rfh_queue_data data[];
748 } __packed; /* RFH_QUEUE_CONFIG_API_S_VER_1 */
749 
750 #endif /* __iwl_fw_api_rx_h__ */
751