1 /* SPDX-License-Identifier: ISC */
2 /*
3 * Copyright (c) 2005-2011 Atheros Communications Inc.
4 * Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
5 * Copyright (c) 2018, The Linux Foundation. All rights reserved.
6 */
7
8 #ifndef _HTT_H_
9 #define _HTT_H_
10
11 #include <linux/bug.h>
12 #include <linux/interrupt.h>
13 #include <linux/dmapool.h>
14 #include <linux/hashtable.h>
15 #include <linux/kfifo.h>
16 #include <net/mac80211.h>
17
18 #include "htc.h"
19 #include "hw.h"
20 #include "rx_desc.h"
21
22 enum htt_dbg_stats_type {
23 HTT_DBG_STATS_WAL_PDEV_TXRX = 1 << 0,
24 HTT_DBG_STATS_RX_REORDER = 1 << 1,
25 HTT_DBG_STATS_RX_RATE_INFO = 1 << 2,
26 HTT_DBG_STATS_TX_PPDU_LOG = 1 << 3,
27 HTT_DBG_STATS_TX_RATE_INFO = 1 << 4,
28 /* bits 5-23 currently reserved */
29
30 HTT_DBG_NUM_STATS /* keep this last */
31 };
32
33 enum htt_h2t_msg_type { /* host-to-target */
34 HTT_H2T_MSG_TYPE_VERSION_REQ = 0,
35 HTT_H2T_MSG_TYPE_TX_FRM = 1,
36 HTT_H2T_MSG_TYPE_RX_RING_CFG = 2,
37 HTT_H2T_MSG_TYPE_STATS_REQ = 3,
38 HTT_H2T_MSG_TYPE_SYNC = 4,
39 HTT_H2T_MSG_TYPE_AGGR_CFG = 5,
40 HTT_H2T_MSG_TYPE_FRAG_DESC_BANK_CFG = 6,
41
42 /* This command is used for sending management frames in HTT < 3.0.
43 * HTT >= 3.0 uses TX_FRM for everything.
44 */
45 HTT_H2T_MSG_TYPE_MGMT_TX = 7,
46 HTT_H2T_MSG_TYPE_TX_FETCH_RESP = 11,
47
48 HTT_H2T_NUM_MSGS /* keep this last */
49 };
50
51 struct htt_cmd_hdr {
52 u8 msg_type;
53 } __packed;
54
55 struct htt_ver_req {
56 u8 pad[sizeof(u32) - sizeof(struct htt_cmd_hdr)];
57 } __packed;
58
59 /*
60 * HTT tx MSDU descriptor
61 *
62 * The HTT tx MSDU descriptor is created by the host HTT SW for each
63 * tx MSDU. The HTT tx MSDU descriptor contains the information that
64 * the target firmware needs for the FW's tx processing, particularly
65 * for creating the HW msdu descriptor.
66 * The same HTT tx descriptor is used for HL and LL systems, though
67 * a few fields within the tx descriptor are used only by LL or
68 * only by HL.
69 * The HTT tx descriptor is defined in two manners: by a struct with
70 * bitfields, and by a series of [dword offset, bit mask, bit shift]
71 * definitions.
72 * The target should use the struct def, for simplicitly and clarity,
73 * but the host shall use the bit-mast + bit-shift defs, to be endian-
74 * neutral. Specifically, the host shall use the get/set macros built
75 * around the mask + shift defs.
76 */
77 struct htt_data_tx_desc_frag {
78 union {
79 struct double_word_addr {
80 __le32 paddr;
81 __le32 len;
82 } __packed dword_addr;
83 struct triple_word_addr {
84 __le32 paddr_lo;
85 __le16 paddr_hi;
86 __le16 len_16;
87 } __packed tword_addr;
88 } __packed;
89 } __packed;
90
91 struct htt_msdu_ext_desc {
92 __le32 tso_flag[3];
93 __le16 ip_identification;
94 u8 flags;
95 u8 reserved;
96 struct htt_data_tx_desc_frag frags[6];
97 };
98
99 struct htt_msdu_ext_desc_64 {
100 __le32 tso_flag[5];
101 __le16 ip_identification;
102 u8 flags;
103 u8 reserved;
104 struct htt_data_tx_desc_frag frags[6];
105 };
106
107 #define HTT_MSDU_EXT_DESC_FLAG_IPV4_CSUM_ENABLE BIT(0)
108 #define HTT_MSDU_EXT_DESC_FLAG_UDP_IPV4_CSUM_ENABLE BIT(1)
109 #define HTT_MSDU_EXT_DESC_FLAG_UDP_IPV6_CSUM_ENABLE BIT(2)
110 #define HTT_MSDU_EXT_DESC_FLAG_TCP_IPV4_CSUM_ENABLE BIT(3)
111 #define HTT_MSDU_EXT_DESC_FLAG_TCP_IPV6_CSUM_ENABLE BIT(4)
112
113 #define HTT_MSDU_CHECKSUM_ENABLE (HTT_MSDU_EXT_DESC_FLAG_IPV4_CSUM_ENABLE \
114 | HTT_MSDU_EXT_DESC_FLAG_UDP_IPV4_CSUM_ENABLE \
115 | HTT_MSDU_EXT_DESC_FLAG_UDP_IPV6_CSUM_ENABLE \
116 | HTT_MSDU_EXT_DESC_FLAG_TCP_IPV4_CSUM_ENABLE \
117 | HTT_MSDU_EXT_DESC_FLAG_TCP_IPV6_CSUM_ENABLE)
118
119 #define HTT_MSDU_EXT_DESC_FLAG_IPV4_CSUM_ENABLE_64 BIT(16)
120 #define HTT_MSDU_EXT_DESC_FLAG_UDP_IPV4_CSUM_ENABLE_64 BIT(17)
121 #define HTT_MSDU_EXT_DESC_FLAG_UDP_IPV6_CSUM_ENABLE_64 BIT(18)
122 #define HTT_MSDU_EXT_DESC_FLAG_TCP_IPV4_CSUM_ENABLE_64 BIT(19)
123 #define HTT_MSDU_EXT_DESC_FLAG_TCP_IPV6_CSUM_ENABLE_64 BIT(20)
124 #define HTT_MSDU_EXT_DESC_FLAG_PARTIAL_CSUM_ENABLE_64 BIT(21)
125
126 #define HTT_MSDU_CHECKSUM_ENABLE_64 (HTT_MSDU_EXT_DESC_FLAG_IPV4_CSUM_ENABLE_64 \
127 | HTT_MSDU_EXT_DESC_FLAG_UDP_IPV4_CSUM_ENABLE_64 \
128 | HTT_MSDU_EXT_DESC_FLAG_UDP_IPV6_CSUM_ENABLE_64 \
129 | HTT_MSDU_EXT_DESC_FLAG_TCP_IPV4_CSUM_ENABLE_64 \
130 | HTT_MSDU_EXT_DESC_FLAG_TCP_IPV6_CSUM_ENABLE_64)
131
132 enum htt_data_tx_desc_flags0 {
133 HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT = 1 << 0,
134 HTT_DATA_TX_DESC_FLAGS0_NO_AGGR = 1 << 1,
135 HTT_DATA_TX_DESC_FLAGS0_NO_ENCRYPT = 1 << 2,
136 HTT_DATA_TX_DESC_FLAGS0_NO_CLASSIFY = 1 << 3,
137 HTT_DATA_TX_DESC_FLAGS0_RSVD0 = 1 << 4
138 #define HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE_MASK 0xE0
139 #define HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE_LSB 5
140 };
141
142 enum htt_data_tx_desc_flags1 {
143 #define HTT_DATA_TX_DESC_FLAGS1_VDEV_ID_BITS 6
144 #define HTT_DATA_TX_DESC_FLAGS1_VDEV_ID_MASK 0x003F
145 #define HTT_DATA_TX_DESC_FLAGS1_VDEV_ID_LSB 0
146 #define HTT_DATA_TX_DESC_FLAGS1_EXT_TID_BITS 5
147 #define HTT_DATA_TX_DESC_FLAGS1_EXT_TID_MASK 0x07C0
148 #define HTT_DATA_TX_DESC_FLAGS1_EXT_TID_LSB 6
149 HTT_DATA_TX_DESC_FLAGS1_POSTPONED = 1 << 11,
150 HTT_DATA_TX_DESC_FLAGS1_MORE_IN_BATCH = 1 << 12,
151 HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD = 1 << 13,
152 HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD = 1 << 14,
153 HTT_DATA_TX_DESC_FLAGS1_RSVD1 = 1 << 15
154 };
155
156 enum htt_data_tx_ext_tid {
157 HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST = 16,
158 HTT_DATA_TX_EXT_TID_MGMT = 17,
159 HTT_DATA_TX_EXT_TID_INVALID = 31
160 };
161
162 #define HTT_INVALID_PEERID 0xFFFF
163
164 /*
165 * htt_data_tx_desc - used for data tx path
166 *
167 * Note: vdev_id irrelevant for pkt_type == raw and no_classify == 1.
168 * ext_tid: for qos-data frames (0-15), see %HTT_DATA_TX_EXT_TID_
169 * for special kinds of tids
170 * postponed: only for HL hosts. indicates if this is a resend
171 * (HL hosts manage queues on the host )
172 * more_in_batch: only for HL hosts. indicates if more packets are
173 * pending. this allows target to wait and aggregate
174 * freq: 0 means home channel of given vdev. intended for offchannel
175 */
176 struct htt_data_tx_desc {
177 u8 flags0; /* %HTT_DATA_TX_DESC_FLAGS0_ */
178 __le16 flags1; /* %HTT_DATA_TX_DESC_FLAGS1_ */
179 __le16 len;
180 __le16 id;
181 __le32 frags_paddr;
182 union {
183 __le32 peerid;
184 struct {
185 __le16 peerid;
186 __le16 freq;
187 } __packed offchan_tx;
188 } __packed;
189 u8 prefetch[0]; /* start of frame, for FW classification engine */
190 } __packed;
191
192 struct htt_data_tx_desc_64 {
193 u8 flags0; /* %HTT_DATA_TX_DESC_FLAGS0_ */
194 __le16 flags1; /* %HTT_DATA_TX_DESC_FLAGS1_ */
195 __le16 len;
196 __le16 id;
197 __le64 frags_paddr;
198 union {
199 __le32 peerid;
200 struct {
201 __le16 peerid;
202 __le16 freq;
203 } __packed offchan_tx;
204 } __packed;
205 u8 prefetch[0]; /* start of frame, for FW classification engine */
206 } __packed;
207
208 enum htt_rx_ring_flags {
209 HTT_RX_RING_FLAGS_MAC80211_HDR = 1 << 0,
210 HTT_RX_RING_FLAGS_MSDU_PAYLOAD = 1 << 1,
211 HTT_RX_RING_FLAGS_PPDU_START = 1 << 2,
212 HTT_RX_RING_FLAGS_PPDU_END = 1 << 3,
213 HTT_RX_RING_FLAGS_MPDU_START = 1 << 4,
214 HTT_RX_RING_FLAGS_MPDU_END = 1 << 5,
215 HTT_RX_RING_FLAGS_MSDU_START = 1 << 6,
216 HTT_RX_RING_FLAGS_MSDU_END = 1 << 7,
217 HTT_RX_RING_FLAGS_RX_ATTENTION = 1 << 8,
218 HTT_RX_RING_FLAGS_FRAG_INFO = 1 << 9,
219 HTT_RX_RING_FLAGS_UNICAST_RX = 1 << 10,
220 HTT_RX_RING_FLAGS_MULTICAST_RX = 1 << 11,
221 HTT_RX_RING_FLAGS_CTRL_RX = 1 << 12,
222 HTT_RX_RING_FLAGS_MGMT_RX = 1 << 13,
223 HTT_RX_RING_FLAGS_NULL_RX = 1 << 14,
224 HTT_RX_RING_FLAGS_PHY_DATA_RX = 1 << 15
225 };
226
227 #define HTT_RX_RING_SIZE_MIN 128
228 #define HTT_RX_RING_SIZE_MAX 2048
229 #define HTT_RX_RING_SIZE HTT_RX_RING_SIZE_MAX
230 #define HTT_RX_RING_FILL_LEVEL (((HTT_RX_RING_SIZE) / 2) - 1)
231 #define HTT_RX_RING_FILL_LEVEL_DUAL_MAC (HTT_RX_RING_SIZE - 1)
232
233 struct htt_rx_ring_setup_ring32 {
234 __le32 fw_idx_shadow_reg_paddr;
235 __le32 rx_ring_base_paddr;
236 __le16 rx_ring_len; /* in 4-byte words */
237 __le16 rx_ring_bufsize; /* rx skb size - in bytes */
238 __le16 flags; /* %HTT_RX_RING_FLAGS_ */
239 __le16 fw_idx_init_val;
240
241 /* the following offsets are in 4-byte units */
242 __le16 mac80211_hdr_offset;
243 __le16 msdu_payload_offset;
244 __le16 ppdu_start_offset;
245 __le16 ppdu_end_offset;
246 __le16 mpdu_start_offset;
247 __le16 mpdu_end_offset;
248 __le16 msdu_start_offset;
249 __le16 msdu_end_offset;
250 __le16 rx_attention_offset;
251 __le16 frag_info_offset;
252 } __packed;
253
254 struct htt_rx_ring_setup_ring64 {
255 __le64 fw_idx_shadow_reg_paddr;
256 __le64 rx_ring_base_paddr;
257 __le16 rx_ring_len; /* in 4-byte words */
258 __le16 rx_ring_bufsize; /* rx skb size - in bytes */
259 __le16 flags; /* %HTT_RX_RING_FLAGS_ */
260 __le16 fw_idx_init_val;
261
262 /* the following offsets are in 4-byte units */
263 __le16 mac80211_hdr_offset;
264 __le16 msdu_payload_offset;
265 __le16 ppdu_start_offset;
266 __le16 ppdu_end_offset;
267 __le16 mpdu_start_offset;
268 __le16 mpdu_end_offset;
269 __le16 msdu_start_offset;
270 __le16 msdu_end_offset;
271 __le16 rx_attention_offset;
272 __le16 frag_info_offset;
273 } __packed;
274
275 struct htt_rx_ring_setup_hdr {
276 u8 num_rings; /* supported values: 1, 2 */
277 __le16 rsvd0;
278 } __packed;
279
280 struct htt_rx_ring_setup_32 {
281 struct htt_rx_ring_setup_hdr hdr;
282 struct htt_rx_ring_setup_ring32 rings[0];
283 } __packed;
284
285 struct htt_rx_ring_setup_64 {
286 struct htt_rx_ring_setup_hdr hdr;
287 struct htt_rx_ring_setup_ring64 rings[0];
288 } __packed;
289
290 /*
291 * htt_stats_req - request target to send specified statistics
292 *
293 * @msg_type: hardcoded %HTT_H2T_MSG_TYPE_STATS_REQ
294 * @upload_types: see %htt_dbg_stats_type. this is 24bit field actually
295 * so make sure its little-endian.
296 * @reset_types: see %htt_dbg_stats_type. this is 24bit field actually
297 * so make sure its little-endian.
298 * @cfg_val: stat_type specific configuration
299 * @stat_type: see %htt_dbg_stats_type
300 * @cookie_lsb: used for confirmation message from target->host
301 * @cookie_msb: ditto as %cookie
302 */
303 struct htt_stats_req {
304 u8 upload_types[3];
305 u8 rsvd0;
306 u8 reset_types[3];
307 struct {
308 u8 mpdu_bytes;
309 u8 mpdu_num_msdus;
310 u8 msdu_bytes;
311 } __packed;
312 u8 stat_type;
313 __le32 cookie_lsb;
314 __le32 cookie_msb;
315 } __packed;
316
317 #define HTT_STATS_REQ_CFG_STAT_TYPE_INVALID 0xff
318 #define HTT_STATS_BIT_MASK GENMASK(16, 0)
319
320 /*
321 * htt_oob_sync_req - request out-of-band sync
322 *
323 * The HTT SYNC tells the target to suspend processing of subsequent
324 * HTT host-to-target messages until some other target agent locally
325 * informs the target HTT FW that the current sync counter is equal to
326 * or greater than (in a modulo sense) the sync counter specified in
327 * the SYNC message.
328 *
329 * This allows other host-target components to synchronize their operation
330 * with HTT, e.g. to ensure that tx frames don't get transmitted until a
331 * security key has been downloaded to and activated by the target.
332 * In the absence of any explicit synchronization counter value
333 * specification, the target HTT FW will use zero as the default current
334 * sync value.
335 *
336 * The HTT target FW will suspend its host->target message processing as long
337 * as 0 < (in-band sync counter - out-of-band sync counter) & 0xff < 128.
338 */
339 struct htt_oob_sync_req {
340 u8 sync_count;
341 __le16 rsvd0;
342 } __packed;
343
344 struct htt_aggr_conf {
345 u8 max_num_ampdu_subframes;
346 /* amsdu_subframes is limited by 0x1F mask */
347 u8 max_num_amsdu_subframes;
348 } __packed;
349
350 struct htt_aggr_conf_v2 {
351 u8 max_num_ampdu_subframes;
352 /* amsdu_subframes is limited by 0x1F mask */
353 u8 max_num_amsdu_subframes;
354 u8 reserved;
355 } __packed;
356
357 #define HTT_MGMT_FRM_HDR_DOWNLOAD_LEN 32
358 struct htt_mgmt_tx_desc_qca99x0 {
359 __le32 rate;
360 } __packed;
361
362 struct htt_mgmt_tx_desc {
363 u8 pad[sizeof(u32) - sizeof(struct htt_cmd_hdr)];
364 __le32 msdu_paddr;
365 __le32 desc_id;
366 __le32 len;
367 __le32 vdev_id;
368 u8 hdr[HTT_MGMT_FRM_HDR_DOWNLOAD_LEN];
369 union {
370 struct htt_mgmt_tx_desc_qca99x0 qca99x0;
371 } __packed;
372 } __packed;
373
374 enum htt_mgmt_tx_status {
375 HTT_MGMT_TX_STATUS_OK = 0,
376 HTT_MGMT_TX_STATUS_RETRY = 1,
377 HTT_MGMT_TX_STATUS_DROP = 2
378 };
379
380 /*=== target -> host messages ===============================================*/
381
382 enum htt_main_t2h_msg_type {
383 HTT_MAIN_T2H_MSG_TYPE_VERSION_CONF = 0x0,
384 HTT_MAIN_T2H_MSG_TYPE_RX_IND = 0x1,
385 HTT_MAIN_T2H_MSG_TYPE_RX_FLUSH = 0x2,
386 HTT_MAIN_T2H_MSG_TYPE_PEER_MAP = 0x3,
387 HTT_MAIN_T2H_MSG_TYPE_PEER_UNMAP = 0x4,
388 HTT_MAIN_T2H_MSG_TYPE_RX_ADDBA = 0x5,
389 HTT_MAIN_T2H_MSG_TYPE_RX_DELBA = 0x6,
390 HTT_MAIN_T2H_MSG_TYPE_TX_COMPL_IND = 0x7,
391 HTT_MAIN_T2H_MSG_TYPE_PKTLOG = 0x8,
392 HTT_MAIN_T2H_MSG_TYPE_STATS_CONF = 0x9,
393 HTT_MAIN_T2H_MSG_TYPE_RX_FRAG_IND = 0xa,
394 HTT_MAIN_T2H_MSG_TYPE_SEC_IND = 0xb,
395 HTT_MAIN_T2H_MSG_TYPE_TX_INSPECT_IND = 0xd,
396 HTT_MAIN_T2H_MSG_TYPE_MGMT_TX_COMPL_IND = 0xe,
397 HTT_MAIN_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND = 0xf,
398 HTT_MAIN_T2H_MSG_TYPE_RX_PN_IND = 0x10,
399 HTT_MAIN_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND = 0x11,
400 HTT_MAIN_T2H_MSG_TYPE_TEST,
401 /* keep this last */
402 HTT_MAIN_T2H_NUM_MSGS
403 };
404
405 enum htt_10x_t2h_msg_type {
406 HTT_10X_T2H_MSG_TYPE_VERSION_CONF = 0x0,
407 HTT_10X_T2H_MSG_TYPE_RX_IND = 0x1,
408 HTT_10X_T2H_MSG_TYPE_RX_FLUSH = 0x2,
409 HTT_10X_T2H_MSG_TYPE_PEER_MAP = 0x3,
410 HTT_10X_T2H_MSG_TYPE_PEER_UNMAP = 0x4,
411 HTT_10X_T2H_MSG_TYPE_RX_ADDBA = 0x5,
412 HTT_10X_T2H_MSG_TYPE_RX_DELBA = 0x6,
413 HTT_10X_T2H_MSG_TYPE_TX_COMPL_IND = 0x7,
414 HTT_10X_T2H_MSG_TYPE_PKTLOG = 0x8,
415 HTT_10X_T2H_MSG_TYPE_STATS_CONF = 0x9,
416 HTT_10X_T2H_MSG_TYPE_RX_FRAG_IND = 0xa,
417 HTT_10X_T2H_MSG_TYPE_SEC_IND = 0xb,
418 HTT_10X_T2H_MSG_TYPE_RC_UPDATE_IND = 0xc,
419 HTT_10X_T2H_MSG_TYPE_TX_INSPECT_IND = 0xd,
420 HTT_10X_T2H_MSG_TYPE_TEST = 0xe,
421 HTT_10X_T2H_MSG_TYPE_CHAN_CHANGE = 0xf,
422 HTT_10X_T2H_MSG_TYPE_AGGR_CONF = 0x11,
423 HTT_10X_T2H_MSG_TYPE_STATS_NOUPLOAD = 0x12,
424 HTT_10X_T2H_MSG_TYPE_MGMT_TX_COMPL_IND = 0x13,
425 /* keep this last */
426 HTT_10X_T2H_NUM_MSGS
427 };
428
429 enum htt_tlv_t2h_msg_type {
430 HTT_TLV_T2H_MSG_TYPE_VERSION_CONF = 0x0,
431 HTT_TLV_T2H_MSG_TYPE_RX_IND = 0x1,
432 HTT_TLV_T2H_MSG_TYPE_RX_FLUSH = 0x2,
433 HTT_TLV_T2H_MSG_TYPE_PEER_MAP = 0x3,
434 HTT_TLV_T2H_MSG_TYPE_PEER_UNMAP = 0x4,
435 HTT_TLV_T2H_MSG_TYPE_RX_ADDBA = 0x5,
436 HTT_TLV_T2H_MSG_TYPE_RX_DELBA = 0x6,
437 HTT_TLV_T2H_MSG_TYPE_TX_COMPL_IND = 0x7,
438 HTT_TLV_T2H_MSG_TYPE_PKTLOG = 0x8,
439 HTT_TLV_T2H_MSG_TYPE_STATS_CONF = 0x9,
440 HTT_TLV_T2H_MSG_TYPE_RX_FRAG_IND = 0xa,
441 HTT_TLV_T2H_MSG_TYPE_SEC_IND = 0xb,
442 HTT_TLV_T2H_MSG_TYPE_RC_UPDATE_IND = 0xc, /* deprecated */
443 HTT_TLV_T2H_MSG_TYPE_TX_INSPECT_IND = 0xd,
444 HTT_TLV_T2H_MSG_TYPE_MGMT_TX_COMPL_IND = 0xe,
445 HTT_TLV_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND = 0xf,
446 HTT_TLV_T2H_MSG_TYPE_RX_PN_IND = 0x10,
447 HTT_TLV_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND = 0x11,
448 HTT_TLV_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND = 0x12,
449 /* 0x13 reservd */
450 HTT_TLV_T2H_MSG_TYPE_WDI_IPA_OP_RESPONSE = 0x14,
451 HTT_TLV_T2H_MSG_TYPE_CHAN_CHANGE = 0x15,
452 HTT_TLV_T2H_MSG_TYPE_RX_OFLD_PKT_ERR = 0x16,
453 HTT_TLV_T2H_MSG_TYPE_TEST,
454 /* keep this last */
455 HTT_TLV_T2H_NUM_MSGS
456 };
457
458 enum htt_10_4_t2h_msg_type {
459 HTT_10_4_T2H_MSG_TYPE_VERSION_CONF = 0x0,
460 HTT_10_4_T2H_MSG_TYPE_RX_IND = 0x1,
461 HTT_10_4_T2H_MSG_TYPE_RX_FLUSH = 0x2,
462 HTT_10_4_T2H_MSG_TYPE_PEER_MAP = 0x3,
463 HTT_10_4_T2H_MSG_TYPE_PEER_UNMAP = 0x4,
464 HTT_10_4_T2H_MSG_TYPE_RX_ADDBA = 0x5,
465 HTT_10_4_T2H_MSG_TYPE_RX_DELBA = 0x6,
466 HTT_10_4_T2H_MSG_TYPE_TX_COMPL_IND = 0x7,
467 HTT_10_4_T2H_MSG_TYPE_PKTLOG = 0x8,
468 HTT_10_4_T2H_MSG_TYPE_STATS_CONF = 0x9,
469 HTT_10_4_T2H_MSG_TYPE_RX_FRAG_IND = 0xa,
470 HTT_10_4_T2H_MSG_TYPE_SEC_IND = 0xb,
471 HTT_10_4_T2H_MSG_TYPE_RC_UPDATE_IND = 0xc,
472 HTT_10_4_T2H_MSG_TYPE_TX_INSPECT_IND = 0xd,
473 HTT_10_4_T2H_MSG_TYPE_MGMT_TX_COMPL_IND = 0xe,
474 HTT_10_4_T2H_MSG_TYPE_CHAN_CHANGE = 0xf,
475 HTT_10_4_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND = 0x10,
476 HTT_10_4_T2H_MSG_TYPE_RX_PN_IND = 0x11,
477 HTT_10_4_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND = 0x12,
478 HTT_10_4_T2H_MSG_TYPE_TEST = 0x13,
479 HTT_10_4_T2H_MSG_TYPE_EN_STATS = 0x14,
480 HTT_10_4_T2H_MSG_TYPE_AGGR_CONF = 0x15,
481 HTT_10_4_T2H_MSG_TYPE_TX_FETCH_IND = 0x16,
482 HTT_10_4_T2H_MSG_TYPE_TX_FETCH_CONFIRM = 0x17,
483 HTT_10_4_T2H_MSG_TYPE_STATS_NOUPLOAD = 0x18,
484 /* 0x19 to 0x2f are reserved */
485 HTT_10_4_T2H_MSG_TYPE_TX_MODE_SWITCH_IND = 0x30,
486 HTT_10_4_T2H_MSG_TYPE_PEER_STATS = 0x31,
487 /* keep this last */
488 HTT_10_4_T2H_NUM_MSGS
489 };
490
491 enum htt_t2h_msg_type {
492 HTT_T2H_MSG_TYPE_VERSION_CONF,
493 HTT_T2H_MSG_TYPE_RX_IND,
494 HTT_T2H_MSG_TYPE_RX_FLUSH,
495 HTT_T2H_MSG_TYPE_PEER_MAP,
496 HTT_T2H_MSG_TYPE_PEER_UNMAP,
497 HTT_T2H_MSG_TYPE_RX_ADDBA,
498 HTT_T2H_MSG_TYPE_RX_DELBA,
499 HTT_T2H_MSG_TYPE_TX_COMPL_IND,
500 HTT_T2H_MSG_TYPE_PKTLOG,
501 HTT_T2H_MSG_TYPE_STATS_CONF,
502 HTT_T2H_MSG_TYPE_RX_FRAG_IND,
503 HTT_T2H_MSG_TYPE_SEC_IND,
504 HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
505 HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
506 HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
507 HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
508 HTT_T2H_MSG_TYPE_RX_PN_IND,
509 HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
510 HTT_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND,
511 HTT_T2H_MSG_TYPE_WDI_IPA_OP_RESPONSE,
512 HTT_T2H_MSG_TYPE_CHAN_CHANGE,
513 HTT_T2H_MSG_TYPE_RX_OFLD_PKT_ERR,
514 HTT_T2H_MSG_TYPE_AGGR_CONF,
515 HTT_T2H_MSG_TYPE_STATS_NOUPLOAD,
516 HTT_T2H_MSG_TYPE_TEST,
517 HTT_T2H_MSG_TYPE_EN_STATS,
518 HTT_T2H_MSG_TYPE_TX_FETCH_IND,
519 HTT_T2H_MSG_TYPE_TX_FETCH_CONFIRM,
520 HTT_T2H_MSG_TYPE_TX_MODE_SWITCH_IND,
521 HTT_T2H_MSG_TYPE_PEER_STATS,
522 /* keep this last */
523 HTT_T2H_NUM_MSGS
524 };
525
526 /*
527 * htt_resp_hdr - header for target-to-host messages
528 *
529 * msg_type: see htt_t2h_msg_type
530 */
531 struct htt_resp_hdr {
532 u8 msg_type;
533 } __packed;
534
535 #define HTT_RESP_HDR_MSG_TYPE_OFFSET 0
536 #define HTT_RESP_HDR_MSG_TYPE_MASK 0xff
537 #define HTT_RESP_HDR_MSG_TYPE_LSB 0
538
539 /* htt_ver_resp - response sent for htt_ver_req */
540 struct htt_ver_resp {
541 u8 minor;
542 u8 major;
543 u8 rsvd0;
544 } __packed;
545
546 #define HTT_MGMT_TX_CMPL_FLAG_ACK_RSSI BIT(0)
547
548 #define HTT_MGMT_TX_CMPL_INFO_ACK_RSSI_MASK GENMASK(7, 0)
549
550 struct htt_mgmt_tx_completion {
551 u8 rsvd0;
552 u8 rsvd1;
553 u8 flags;
554 __le32 desc_id;
555 __le32 status;
556 __le32 ppdu_id;
557 __le32 info;
558 } __packed;
559
560 #define HTT_RX_INDICATION_INFO0_EXT_TID_MASK (0x1F)
561 #define HTT_RX_INDICATION_INFO0_EXT_TID_LSB (0)
562 #define HTT_RX_INDICATION_INFO0_FLUSH_VALID (1 << 5)
563 #define HTT_RX_INDICATION_INFO0_RELEASE_VALID (1 << 6)
564 #define HTT_RX_INDICATION_INFO0_PPDU_DURATION BIT(7)
565
566 #define HTT_RX_INDICATION_INFO1_FLUSH_START_SEQNO_MASK 0x0000003F
567 #define HTT_RX_INDICATION_INFO1_FLUSH_START_SEQNO_LSB 0
568 #define HTT_RX_INDICATION_INFO1_FLUSH_END_SEQNO_MASK 0x00000FC0
569 #define HTT_RX_INDICATION_INFO1_FLUSH_END_SEQNO_LSB 6
570 #define HTT_RX_INDICATION_INFO1_RELEASE_START_SEQNO_MASK 0x0003F000
571 #define HTT_RX_INDICATION_INFO1_RELEASE_START_SEQNO_LSB 12
572 #define HTT_RX_INDICATION_INFO1_RELEASE_END_SEQNO_MASK 0x00FC0000
573 #define HTT_RX_INDICATION_INFO1_RELEASE_END_SEQNO_LSB 18
574 #define HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES_MASK 0xFF000000
575 #define HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES_LSB 24
576
577 #define HTT_TX_CMPL_FLAG_DATA_RSSI BIT(0)
578 #define HTT_TX_CMPL_FLAG_PPID_PRESENT BIT(1)
579 #define HTT_TX_CMPL_FLAG_PA_PRESENT BIT(2)
580 #define HTT_TX_CMPL_FLAG_PPDU_DURATION_PRESENT BIT(3)
581
582 #define HTT_TX_DATA_RSSI_ENABLE_WCN3990 BIT(3)
583 #define HTT_TX_DATA_APPEND_RETRIES BIT(0)
584 #define HTT_TX_DATA_APPEND_TIMESTAMP BIT(1)
585
586 struct htt_rx_indication_hdr {
587 u8 info0; /* %HTT_RX_INDICATION_INFO0_ */
588 __le16 peer_id;
589 __le32 info1; /* %HTT_RX_INDICATION_INFO1_ */
590 } __packed;
591
592 #define HTT_RX_INDICATION_INFO0_PHY_ERR_VALID (1 << 0)
593 #define HTT_RX_INDICATION_INFO0_LEGACY_RATE_MASK (0x1E)
594 #define HTT_RX_INDICATION_INFO0_LEGACY_RATE_LSB (1)
595 #define HTT_RX_INDICATION_INFO0_LEGACY_RATE_CCK (1 << 5)
596 #define HTT_RX_INDICATION_INFO0_END_VALID (1 << 6)
597 #define HTT_RX_INDICATION_INFO0_START_VALID (1 << 7)
598
599 #define HTT_RX_INDICATION_INFO1_VHT_SIG_A1_MASK 0x00FFFFFF
600 #define HTT_RX_INDICATION_INFO1_VHT_SIG_A1_LSB 0
601 #define HTT_RX_INDICATION_INFO1_PREAMBLE_TYPE_MASK 0xFF000000
602 #define HTT_RX_INDICATION_INFO1_PREAMBLE_TYPE_LSB 24
603
604 #define HTT_RX_INDICATION_INFO2_VHT_SIG_A1_MASK 0x00FFFFFF
605 #define HTT_RX_INDICATION_INFO2_VHT_SIG_A1_LSB 0
606 #define HTT_RX_INDICATION_INFO2_SERVICE_MASK 0xFF000000
607 #define HTT_RX_INDICATION_INFO2_SERVICE_LSB 24
608
609 enum htt_rx_legacy_rate {
610 HTT_RX_OFDM_48 = 0,
611 HTT_RX_OFDM_24 = 1,
612 HTT_RX_OFDM_12,
613 HTT_RX_OFDM_6,
614 HTT_RX_OFDM_54,
615 HTT_RX_OFDM_36,
616 HTT_RX_OFDM_18,
617 HTT_RX_OFDM_9,
618
619 /* long preamble */
620 HTT_RX_CCK_11_LP = 0,
621 HTT_RX_CCK_5_5_LP = 1,
622 HTT_RX_CCK_2_LP,
623 HTT_RX_CCK_1_LP,
624 /* short preamble */
625 HTT_RX_CCK_11_SP,
626 HTT_RX_CCK_5_5_SP,
627 HTT_RX_CCK_2_SP
628 };
629
630 enum htt_rx_legacy_rate_type {
631 HTT_RX_LEGACY_RATE_OFDM = 0,
632 HTT_RX_LEGACY_RATE_CCK
633 };
634
635 enum htt_rx_preamble_type {
636 HTT_RX_LEGACY = 0x4,
637 HTT_RX_HT = 0x8,
638 HTT_RX_HT_WITH_TXBF = 0x9,
639 HTT_RX_VHT = 0xC,
640 HTT_RX_VHT_WITH_TXBF = 0xD,
641 };
642
643 /*
644 * Fields: phy_err_valid, phy_err_code, tsf,
645 * usec_timestamp, sub_usec_timestamp
646 * ..are valid only if end_valid == 1.
647 *
648 * Fields: rssi_chains, legacy_rate_type,
649 * legacy_rate_cck, preamble_type, service,
650 * vht_sig_*
651 * ..are valid only if start_valid == 1;
652 */
653 struct htt_rx_indication_ppdu {
654 u8 combined_rssi;
655 u8 sub_usec_timestamp;
656 u8 phy_err_code;
657 u8 info0; /* HTT_RX_INDICATION_INFO0_ */
658 struct {
659 u8 pri20_db;
660 u8 ext20_db;
661 u8 ext40_db;
662 u8 ext80_db;
663 } __packed rssi_chains[4];
664 __le32 tsf;
665 __le32 usec_timestamp;
666 __le32 info1; /* HTT_RX_INDICATION_INFO1_ */
667 __le32 info2; /* HTT_RX_INDICATION_INFO2_ */
668 } __packed;
669
670 enum htt_rx_mpdu_status {
671 HTT_RX_IND_MPDU_STATUS_UNKNOWN = 0x0,
672 HTT_RX_IND_MPDU_STATUS_OK,
673 HTT_RX_IND_MPDU_STATUS_ERR_FCS,
674 HTT_RX_IND_MPDU_STATUS_ERR_DUP,
675 HTT_RX_IND_MPDU_STATUS_ERR_REPLAY,
676 HTT_RX_IND_MPDU_STATUS_ERR_INV_PEER,
677 /* only accept EAPOL frames */
678 HTT_RX_IND_MPDU_STATUS_UNAUTH_PEER,
679 HTT_RX_IND_MPDU_STATUS_OUT_OF_SYNC,
680 /* Non-data in promiscuous mode */
681 HTT_RX_IND_MPDU_STATUS_MGMT_CTRL,
682 HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR,
683 HTT_RX_IND_MPDU_STATUS_DECRYPT_ERR,
684 HTT_RX_IND_MPDU_STATUS_MPDU_LENGTH_ERR,
685 HTT_RX_IND_MPDU_STATUS_ENCRYPT_REQUIRED_ERR,
686 HTT_RX_IND_MPDU_STATUS_PRIVACY_ERR,
687
688 /*
689 * MISC: discard for unspecified reasons.
690 * Leave this enum value last.
691 */
692 HTT_RX_IND_MPDU_STATUS_ERR_MISC = 0xFF
693 };
694
695 struct htt_rx_indication_mpdu_range {
696 u8 mpdu_count;
697 u8 mpdu_range_status; /* %htt_rx_mpdu_status */
698 u8 pad0;
699 u8 pad1;
700 } __packed;
701
702 struct htt_rx_indication_prefix {
703 __le16 fw_rx_desc_bytes;
704 u8 pad0;
705 u8 pad1;
706 };
707
708 struct htt_rx_indication {
709 struct htt_rx_indication_hdr hdr;
710 struct htt_rx_indication_ppdu ppdu;
711 struct htt_rx_indication_prefix prefix;
712
713 /*
714 * the following fields are both dynamically sized, so
715 * take care addressing them
716 */
717
718 /* the size of this is %fw_rx_desc_bytes */
719 struct fw_rx_desc_base fw_desc;
720
721 /*
722 * %mpdu_ranges starts after &%prefix + roundup(%fw_rx_desc_bytes, 4)
723 * and has %num_mpdu_ranges elements.
724 */
725 struct htt_rx_indication_mpdu_range mpdu_ranges[0];
726 } __packed;
727
728 /* High latency version of the RX indication */
729 struct htt_rx_indication_hl {
730 struct htt_rx_indication_hdr hdr;
731 struct htt_rx_indication_ppdu ppdu;
732 struct htt_rx_indication_prefix prefix;
733 struct fw_rx_desc_hl fw_desc;
734 struct htt_rx_indication_mpdu_range mpdu_ranges[0];
735 } __packed;
736
737 struct htt_hl_rx_desc {
738 __le32 info;
739 __le32 pn_31_0;
740 union {
741 struct {
742 __le16 pn_47_32;
743 __le16 pn_63_48;
744 } pn16;
745 __le32 pn_63_32;
746 } u0;
747 __le32 pn_95_64;
748 __le32 pn_127_96;
749 } __packed;
750
751 static inline struct htt_rx_indication_mpdu_range *
htt_rx_ind_get_mpdu_ranges(struct htt_rx_indication * rx_ind)752 htt_rx_ind_get_mpdu_ranges(struct htt_rx_indication *rx_ind)
753 {
754 void *ptr = rx_ind;
755
756 ptr += sizeof(rx_ind->hdr)
757 + sizeof(rx_ind->ppdu)
758 + sizeof(rx_ind->prefix)
759 + roundup(__le16_to_cpu(rx_ind->prefix.fw_rx_desc_bytes), 4);
760 return ptr;
761 }
762
763 static inline struct htt_rx_indication_mpdu_range *
htt_rx_ind_get_mpdu_ranges_hl(struct htt_rx_indication_hl * rx_ind)764 htt_rx_ind_get_mpdu_ranges_hl(struct htt_rx_indication_hl *rx_ind)
765 {
766 void *ptr = rx_ind;
767
768 ptr += sizeof(rx_ind->hdr)
769 + sizeof(rx_ind->ppdu)
770 + sizeof(rx_ind->prefix)
771 + sizeof(rx_ind->fw_desc);
772 return ptr;
773 }
774
775 enum htt_rx_flush_mpdu_status {
776 HTT_RX_FLUSH_MPDU_DISCARD = 0,
777 HTT_RX_FLUSH_MPDU_REORDER = 1,
778 };
779
780 /*
781 * htt_rx_flush - discard or reorder given range of mpdus
782 *
783 * Note: host must check if all sequence numbers between
784 * [seq_num_start, seq_num_end-1] are valid.
785 */
786 struct htt_rx_flush {
787 __le16 peer_id;
788 u8 tid;
789 u8 rsvd0;
790 u8 mpdu_status; /* %htt_rx_flush_mpdu_status */
791 u8 seq_num_start; /* it is 6 LSBs of 802.11 seq no */
792 u8 seq_num_end; /* it is 6 LSBs of 802.11 seq no */
793 };
794
795 struct htt_rx_peer_map {
796 u8 vdev_id;
797 __le16 peer_id;
798 u8 addr[6];
799 u8 rsvd0;
800 u8 rsvd1;
801 } __packed;
802
803 struct htt_rx_peer_unmap {
804 u8 rsvd0;
805 __le16 peer_id;
806 } __packed;
807
808 enum htt_txrx_sec_cast_type {
809 HTT_TXRX_SEC_MCAST = 0,
810 HTT_TXRX_SEC_UCAST
811 };
812
813 enum htt_rx_pn_check_type {
814 HTT_RX_NON_PN_CHECK = 0,
815 HTT_RX_PN_CHECK
816 };
817
818 enum htt_rx_tkip_demic_type {
819 HTT_RX_NON_TKIP_MIC = 0,
820 HTT_RX_TKIP_MIC
821 };
822
823 enum htt_security_types {
824 HTT_SECURITY_NONE,
825 HTT_SECURITY_WEP128,
826 HTT_SECURITY_WEP104,
827 HTT_SECURITY_WEP40,
828 HTT_SECURITY_TKIP,
829 HTT_SECURITY_TKIP_NOMIC,
830 HTT_SECURITY_AES_CCMP,
831 HTT_SECURITY_WAPI,
832
833 HTT_NUM_SECURITY_TYPES /* keep this last! */
834 };
835
836 #define ATH10K_HTT_TXRX_PEER_SECURITY_MAX 2
837 #define ATH10K_TXRX_NUM_EXT_TIDS 19
838
839 enum htt_security_flags {
840 #define HTT_SECURITY_TYPE_MASK 0x7F
841 #define HTT_SECURITY_TYPE_LSB 0
842 HTT_SECURITY_IS_UNICAST = 1 << 7
843 };
844
845 struct htt_security_indication {
846 union {
847 /* dont use bitfields; undefined behaviour */
848 u8 flags; /* %htt_security_flags */
849 struct {
850 u8 security_type:7, /* %htt_security_types */
851 is_unicast:1;
852 } __packed;
853 } __packed;
854 __le16 peer_id;
855 u8 michael_key[8];
856 u8 wapi_rsc[16];
857 } __packed;
858
859 #define HTT_RX_BA_INFO0_TID_MASK 0x000F
860 #define HTT_RX_BA_INFO0_TID_LSB 0
861 #define HTT_RX_BA_INFO0_PEER_ID_MASK 0xFFF0
862 #define HTT_RX_BA_INFO0_PEER_ID_LSB 4
863
864 struct htt_rx_addba {
865 u8 window_size;
866 __le16 info0; /* %HTT_RX_BA_INFO0_ */
867 } __packed;
868
869 struct htt_rx_delba {
870 u8 rsvd0;
871 __le16 info0; /* %HTT_RX_BA_INFO0_ */
872 } __packed;
873
874 enum htt_data_tx_status {
875 HTT_DATA_TX_STATUS_OK = 0,
876 HTT_DATA_TX_STATUS_DISCARD = 1,
877 HTT_DATA_TX_STATUS_NO_ACK = 2,
878 HTT_DATA_TX_STATUS_POSTPONE = 3, /* HL only */
879 HTT_DATA_TX_STATUS_DOWNLOAD_FAIL = 128
880 };
881
882 enum htt_data_tx_flags {
883 #define HTT_DATA_TX_STATUS_MASK 0x07
884 #define HTT_DATA_TX_STATUS_LSB 0
885 #define HTT_DATA_TX_TID_MASK 0x78
886 #define HTT_DATA_TX_TID_LSB 3
887 HTT_DATA_TX_TID_INVALID = 1 << 7
888 };
889
890 #define HTT_TX_COMPL_INV_MSDU_ID 0xFFFF
891
892 struct htt_append_retries {
893 __le16 msdu_id;
894 u8 tx_retries;
895 u8 flag;
896 } __packed;
897
898 struct htt_data_tx_completion_ext {
899 struct htt_append_retries a_retries;
900 __le32 t_stamp;
901 __le16 msdus_rssi[0];
902 } __packed;
903
904 /**
905 * @brief target -> host TX completion indication message definition
906 *
907 * @details
908 * The following diagram shows the format of the TX completion indication sent
909 * from the target to the host
910 *
911 * |31 28|27|26|25|24|23 16| 15 |14 11|10 8|7 0|
912 * |-------------------------------------------------------------|
913 * header: |rsvd |A2|TP|A1|A0| num | t_i| tid |status| msg_type |
914 * |-------------------------------------------------------------|
915 * payload: | MSDU1 ID | MSDU0 ID |
916 * |-------------------------------------------------------------|
917 * : MSDU3 ID : MSDU2 ID :
918 * |-------------------------------------------------------------|
919 * | struct htt_tx_compl_ind_append_retries |
920 * |- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -|
921 * | struct htt_tx_compl_ind_append_tx_tstamp |
922 * |- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -|
923 * | MSDU1 ACK RSSI | MSDU0 ACK RSSI |
924 * |-------------------------------------------------------------|
925 * : MSDU3 ACK RSSI : MSDU2 ACK RSSI :
926 * |- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -|
927 * -msg_type
928 * Bits 7:0
929 * Purpose: identifies this as HTT TX completion indication
930 * -status
931 * Bits 10:8
932 * Purpose: the TX completion status of payload fragmentations descriptors
933 * Value: could be HTT_TX_COMPL_IND_STAT_OK or HTT_TX_COMPL_IND_STAT_DISCARD
934 * -tid
935 * Bits 14:11
936 * Purpose: the tid associated with those fragmentation descriptors. It is
937 * valid or not, depending on the tid_invalid bit.
938 * Value: 0 to 15
939 * -tid_invalid
940 * Bits 15:15
941 * Purpose: this bit indicates whether the tid field is valid or not
942 * Value: 0 indicates valid, 1 indicates invalid
943 * -num
944 * Bits 23:16
945 * Purpose: the number of payload in this indication
946 * Value: 1 to 255
947 * -A0 = append
948 * Bits 24:24
949 * Purpose: append the struct htt_tx_compl_ind_append_retries which contains
950 * the number of tx retries for one MSDU at the end of this message
951 * Value: 0 indicates no appending, 1 indicates appending
952 * -A1 = append1
953 * Bits 25:25
954 * Purpose: Append the struct htt_tx_compl_ind_append_tx_tstamp which
955 * contains the timestamp info for each TX msdu id in payload.
956 * Value: 0 indicates no appending, 1 indicates appending
957 * -TP = MSDU tx power presence
958 * Bits 26:26
959 * Purpose: Indicate whether the TX_COMPL_IND includes a tx power report
960 * for each MSDU referenced by the TX_COMPL_IND message.
961 * The order of the per-MSDU tx power reports matches the order
962 * of the MSDU IDs.
963 * Value: 0 indicates not appending, 1 indicates appending
964 * -A2 = append2
965 * Bits 27:27
966 * Purpose: Indicate whether data ACK RSSI is appended for each MSDU in
967 * TX_COMP_IND message. The order of the per-MSDU ACK RSSI report
968 * matches the order of the MSDU IDs.
969 * The ACK RSSI values are valid when status is COMPLETE_OK (and
970 * this append2 bit is set).
971 * Value: 0 indicates not appending, 1 indicates appending
972 */
973
974 struct htt_data_tx_completion {
975 union {
976 u8 flags;
977 struct {
978 u8 status:3,
979 tid:4,
980 tid_invalid:1;
981 } __packed;
982 } __packed;
983 u8 num_msdus;
984 u8 flags2; /* HTT_TX_CMPL_FLAG_DATA_RSSI */
985 __le16 msdus[0]; /* variable length based on %num_msdus */
986 } __packed;
987
988 #define HTT_TX_PPDU_DUR_INFO0_PEER_ID_MASK GENMASK(15, 0)
989 #define HTT_TX_PPDU_DUR_INFO0_TID_MASK GENMASK(20, 16)
990
991 struct htt_data_tx_ppdu_dur {
992 __le32 info0; /* HTT_TX_PPDU_DUR_INFO0_ */
993 __le32 tx_duration; /* in usecs */
994 } __packed;
995
996 #define HTT_TX_COMPL_PPDU_DUR_INFO0_NUM_ENTRIES_MASK GENMASK(7, 0)
997
998 struct htt_data_tx_compl_ppdu_dur {
999 __le32 info0; /* HTT_TX_COMPL_PPDU_DUR_INFO0_ */
1000 struct htt_data_tx_ppdu_dur ppdu_dur[0];
1001 } __packed;
1002
1003 struct htt_tx_compl_ind_base {
1004 u32 hdr;
1005 u16 payload[1/*or more*/];
1006 } __packed;
1007
1008 struct htt_rc_tx_done_params {
1009 u32 rate_code;
1010 u32 rate_code_flags;
1011 u32 flags;
1012 u32 num_enqued; /* 1 for non-AMPDU */
1013 u32 num_retries;
1014 u32 num_failed; /* for AMPDU */
1015 u32 ack_rssi;
1016 u32 time_stamp;
1017 u32 is_probe;
1018 };
1019
1020 struct htt_rc_update {
1021 u8 vdev_id;
1022 __le16 peer_id;
1023 u8 addr[6];
1024 u8 num_elems;
1025 u8 rsvd0;
1026 struct htt_rc_tx_done_params params[0]; /* variable length %num_elems */
1027 } __packed;
1028
1029 /* see htt_rx_indication for similar fields and descriptions */
1030 struct htt_rx_fragment_indication {
1031 union {
1032 u8 info0; /* %HTT_RX_FRAG_IND_INFO0_ */
1033 struct {
1034 u8 ext_tid:5,
1035 flush_valid:1;
1036 } __packed;
1037 } __packed;
1038 __le16 peer_id;
1039 __le32 info1; /* %HTT_RX_FRAG_IND_INFO1_ */
1040 __le16 fw_rx_desc_bytes;
1041 __le16 rsvd0;
1042
1043 u8 fw_msdu_rx_desc[0];
1044 } __packed;
1045
1046 #define ATH10K_IEEE80211_EXTIV BIT(5)
1047 #define ATH10K_IEEE80211_TKIP_MICLEN 8 /* trailing MIC */
1048
1049 #define HTT_RX_FRAG_IND_INFO0_HEADER_LEN 16
1050
1051 #define HTT_RX_FRAG_IND_INFO0_EXT_TID_MASK 0x1F
1052 #define HTT_RX_FRAG_IND_INFO0_EXT_TID_LSB 0
1053 #define HTT_RX_FRAG_IND_INFO0_FLUSH_VALID_MASK 0x20
1054 #define HTT_RX_FRAG_IND_INFO0_FLUSH_VALID_LSB 5
1055
1056 #define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_START_MASK 0x0000003F
1057 #define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_START_LSB 0
1058 #define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_END_MASK 0x00000FC0
1059 #define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_END_LSB 6
1060
1061 struct htt_rx_pn_ind {
1062 __le16 peer_id;
1063 u8 tid;
1064 u8 seqno_start;
1065 u8 seqno_end;
1066 u8 pn_ie_count;
1067 u8 reserved;
1068 u8 pn_ies[0];
1069 } __packed;
1070
1071 struct htt_rx_offload_msdu {
1072 __le16 msdu_len;
1073 __le16 peer_id;
1074 u8 vdev_id;
1075 u8 tid;
1076 u8 fw_desc;
1077 u8 payload[0];
1078 } __packed;
1079
1080 struct htt_rx_offload_ind {
1081 u8 reserved;
1082 __le16 msdu_count;
1083 } __packed;
1084
1085 struct htt_rx_in_ord_msdu_desc {
1086 __le32 msdu_paddr;
1087 __le16 msdu_len;
1088 u8 fw_desc;
1089 u8 reserved;
1090 } __packed;
1091
1092 struct htt_rx_in_ord_msdu_desc_ext {
1093 __le64 msdu_paddr;
1094 __le16 msdu_len;
1095 u8 fw_desc;
1096 u8 reserved;
1097 } __packed;
1098
1099 struct htt_rx_in_ord_ind {
1100 u8 info;
1101 __le16 peer_id;
1102 u8 vdev_id;
1103 u8 reserved;
1104 __le16 msdu_count;
1105 union {
1106 struct htt_rx_in_ord_msdu_desc msdu_descs32[0];
1107 struct htt_rx_in_ord_msdu_desc_ext msdu_descs64[0];
1108 } __packed;
1109 } __packed;
1110
1111 #define HTT_RX_IN_ORD_IND_INFO_TID_MASK 0x0000001f
1112 #define HTT_RX_IN_ORD_IND_INFO_TID_LSB 0
1113 #define HTT_RX_IN_ORD_IND_INFO_OFFLOAD_MASK 0x00000020
1114 #define HTT_RX_IN_ORD_IND_INFO_OFFLOAD_LSB 5
1115 #define HTT_RX_IN_ORD_IND_INFO_FRAG_MASK 0x00000040
1116 #define HTT_RX_IN_ORD_IND_INFO_FRAG_LSB 6
1117
1118 /*
1119 * target -> host test message definition
1120 *
1121 * The following field definitions describe the format of the test
1122 * message sent from the target to the host.
1123 * The message consists of a 4-octet header, followed by a variable
1124 * number of 32-bit integer values, followed by a variable number
1125 * of 8-bit character values.
1126 *
1127 * |31 16|15 8|7 0|
1128 * |-----------------------------------------------------------|
1129 * | num chars | num ints | msg type |
1130 * |-----------------------------------------------------------|
1131 * | int 0 |
1132 * |-----------------------------------------------------------|
1133 * | int 1 |
1134 * |-----------------------------------------------------------|
1135 * | ... |
1136 * |-----------------------------------------------------------|
1137 * | char 3 | char 2 | char 1 | char 0 |
1138 * |-----------------------------------------------------------|
1139 * | | | ... | char 4 |
1140 * |-----------------------------------------------------------|
1141 * - MSG_TYPE
1142 * Bits 7:0
1143 * Purpose: identifies this as a test message
1144 * Value: HTT_MSG_TYPE_TEST
1145 * - NUM_INTS
1146 * Bits 15:8
1147 * Purpose: indicate how many 32-bit integers follow the message header
1148 * - NUM_CHARS
1149 * Bits 31:16
1150 * Purpose: indicate how many 8-bit characters follow the series of integers
1151 */
1152 struct htt_rx_test {
1153 u8 num_ints;
1154 __le16 num_chars;
1155
1156 /* payload consists of 2 lists:
1157 * a) num_ints * sizeof(__le32)
1158 * b) num_chars * sizeof(u8) aligned to 4bytes
1159 */
1160 u8 payload[0];
1161 } __packed;
1162
htt_rx_test_get_ints(struct htt_rx_test * rx_test)1163 static inline __le32 *htt_rx_test_get_ints(struct htt_rx_test *rx_test)
1164 {
1165 return (__le32 *)rx_test->payload;
1166 }
1167
htt_rx_test_get_chars(struct htt_rx_test * rx_test)1168 static inline u8 *htt_rx_test_get_chars(struct htt_rx_test *rx_test)
1169 {
1170 return rx_test->payload + (rx_test->num_ints * sizeof(__le32));
1171 }
1172
1173 /*
1174 * target -> host packet log message
1175 *
1176 * The following field definitions describe the format of the packet log
1177 * message sent from the target to the host.
1178 * The message consists of a 4-octet header,followed by a variable number
1179 * of 32-bit character values.
1180 *
1181 * |31 24|23 16|15 8|7 0|
1182 * |-----------------------------------------------------------|
1183 * | | | | msg type |
1184 * |-----------------------------------------------------------|
1185 * | payload |
1186 * |-----------------------------------------------------------|
1187 * - MSG_TYPE
1188 * Bits 7:0
1189 * Purpose: identifies this as a test message
1190 * Value: HTT_MSG_TYPE_PACKETLOG
1191 */
1192 struct htt_pktlog_msg {
1193 u8 pad[3];
1194 u8 payload[0];
1195 } __packed;
1196
1197 struct htt_dbg_stats_rx_reorder_stats {
1198 /* Non QoS MPDUs received */
1199 __le32 deliver_non_qos;
1200
1201 /* MPDUs received in-order */
1202 __le32 deliver_in_order;
1203
1204 /* Flush due to reorder timer expired */
1205 __le32 deliver_flush_timeout;
1206
1207 /* Flush due to move out of window */
1208 __le32 deliver_flush_oow;
1209
1210 /* Flush due to DELBA */
1211 __le32 deliver_flush_delba;
1212
1213 /* MPDUs dropped due to FCS error */
1214 __le32 fcs_error;
1215
1216 /* MPDUs dropped due to monitor mode non-data packet */
1217 __le32 mgmt_ctrl;
1218
1219 /* MPDUs dropped due to invalid peer */
1220 __le32 invalid_peer;
1221
1222 /* MPDUs dropped due to duplication (non aggregation) */
1223 __le32 dup_non_aggr;
1224
1225 /* MPDUs dropped due to processed before */
1226 __le32 dup_past;
1227
1228 /* MPDUs dropped due to duplicate in reorder queue */
1229 __le32 dup_in_reorder;
1230
1231 /* Reorder timeout happened */
1232 __le32 reorder_timeout;
1233
1234 /* invalid bar ssn */
1235 __le32 invalid_bar_ssn;
1236
1237 /* reorder reset due to bar ssn */
1238 __le32 ssn_reset;
1239 };
1240
1241 struct htt_dbg_stats_wal_tx_stats {
1242 /* Num HTT cookies queued to dispatch list */
1243 __le32 comp_queued;
1244
1245 /* Num HTT cookies dispatched */
1246 __le32 comp_delivered;
1247
1248 /* Num MSDU queued to WAL */
1249 __le32 msdu_enqued;
1250
1251 /* Num MPDU queue to WAL */
1252 __le32 mpdu_enqued;
1253
1254 /* Num MSDUs dropped by WMM limit */
1255 __le32 wmm_drop;
1256
1257 /* Num Local frames queued */
1258 __le32 local_enqued;
1259
1260 /* Num Local frames done */
1261 __le32 local_freed;
1262
1263 /* Num queued to HW */
1264 __le32 hw_queued;
1265
1266 /* Num PPDU reaped from HW */
1267 __le32 hw_reaped;
1268
1269 /* Num underruns */
1270 __le32 underrun;
1271
1272 /* Num PPDUs cleaned up in TX abort */
1273 __le32 tx_abort;
1274
1275 /* Num MPDUs requed by SW */
1276 __le32 mpdus_requed;
1277
1278 /* excessive retries */
1279 __le32 tx_ko;
1280
1281 /* data hw rate code */
1282 __le32 data_rc;
1283
1284 /* Scheduler self triggers */
1285 __le32 self_triggers;
1286
1287 /* frames dropped due to excessive sw retries */
1288 __le32 sw_retry_failure;
1289
1290 /* illegal rate phy errors */
1291 __le32 illgl_rate_phy_err;
1292
1293 /* wal pdev continuous xretry */
1294 __le32 pdev_cont_xretry;
1295
1296 /* wal pdev continuous xretry */
1297 __le32 pdev_tx_timeout;
1298
1299 /* wal pdev resets */
1300 __le32 pdev_resets;
1301
1302 __le32 phy_underrun;
1303
1304 /* MPDU is more than txop limit */
1305 __le32 txop_ovf;
1306 } __packed;
1307
1308 struct htt_dbg_stats_wal_rx_stats {
1309 /* Cnts any change in ring routing mid-ppdu */
1310 __le32 mid_ppdu_route_change;
1311
1312 /* Total number of statuses processed */
1313 __le32 status_rcvd;
1314
1315 /* Extra frags on rings 0-3 */
1316 __le32 r0_frags;
1317 __le32 r1_frags;
1318 __le32 r2_frags;
1319 __le32 r3_frags;
1320
1321 /* MSDUs / MPDUs delivered to HTT */
1322 __le32 htt_msdus;
1323 __le32 htt_mpdus;
1324
1325 /* MSDUs / MPDUs delivered to local stack */
1326 __le32 loc_msdus;
1327 __le32 loc_mpdus;
1328
1329 /* AMSDUs that have more MSDUs than the status ring size */
1330 __le32 oversize_amsdu;
1331
1332 /* Number of PHY errors */
1333 __le32 phy_errs;
1334
1335 /* Number of PHY errors drops */
1336 __le32 phy_err_drop;
1337
1338 /* Number of mpdu errors - FCS, MIC, ENC etc. */
1339 __le32 mpdu_errs;
1340 } __packed;
1341
1342 struct htt_dbg_stats_wal_peer_stats {
1343 __le32 dummy; /* REMOVE THIS ONCE REAL PEER STAT COUNTERS ARE ADDED */
1344 } __packed;
1345
1346 struct htt_dbg_stats_wal_pdev_txrx {
1347 struct htt_dbg_stats_wal_tx_stats tx_stats;
1348 struct htt_dbg_stats_wal_rx_stats rx_stats;
1349 struct htt_dbg_stats_wal_peer_stats peer_stats;
1350 } __packed;
1351
1352 struct htt_dbg_stats_rx_rate_info {
1353 __le32 mcs[10];
1354 __le32 sgi[10];
1355 __le32 nss[4];
1356 __le32 stbc[10];
1357 __le32 bw[3];
1358 __le32 pream[6];
1359 __le32 ldpc;
1360 __le32 txbf;
1361 };
1362
1363 /*
1364 * htt_dbg_stats_status -
1365 * present - The requested stats have been delivered in full.
1366 * This indicates that either the stats information was contained
1367 * in its entirety within this message, or else this message
1368 * completes the delivery of the requested stats info that was
1369 * partially delivered through earlier STATS_CONF messages.
1370 * partial - The requested stats have been delivered in part.
1371 * One or more subsequent STATS_CONF messages with the same
1372 * cookie value will be sent to deliver the remainder of the
1373 * information.
1374 * error - The requested stats could not be delivered, for example due
1375 * to a shortage of memory to construct a message holding the
1376 * requested stats.
1377 * invalid - The requested stat type is either not recognized, or the
1378 * target is configured to not gather the stats type in question.
1379 * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1380 * series_done - This special value indicates that no further stats info
1381 * elements are present within a series of stats info elems
1382 * (within a stats upload confirmation message).
1383 */
1384 enum htt_dbg_stats_status {
1385 HTT_DBG_STATS_STATUS_PRESENT = 0,
1386 HTT_DBG_STATS_STATUS_PARTIAL = 1,
1387 HTT_DBG_STATS_STATUS_ERROR = 2,
1388 HTT_DBG_STATS_STATUS_INVALID = 3,
1389 HTT_DBG_STATS_STATUS_SERIES_DONE = 7
1390 };
1391
1392 /*
1393 * target -> host statistics upload
1394 *
1395 * The following field definitions describe the format of the HTT target
1396 * to host stats upload confirmation message.
1397 * The message contains a cookie echoed from the HTT host->target stats
1398 * upload request, which identifies which request the confirmation is
1399 * for, and a series of tag-length-value stats information elements.
1400 * The tag-length header for each stats info element also includes a
1401 * status field, to indicate whether the request for the stat type in
1402 * question was fully met, partially met, unable to be met, or invalid
1403 * (if the stat type in question is disabled in the target).
1404 * A special value of all 1's in this status field is used to indicate
1405 * the end of the series of stats info elements.
1406 *
1407 *
1408 * |31 16|15 8|7 5|4 0|
1409 * |------------------------------------------------------------|
1410 * | reserved | msg type |
1411 * |------------------------------------------------------------|
1412 * | cookie LSBs |
1413 * |------------------------------------------------------------|
1414 * | cookie MSBs |
1415 * |------------------------------------------------------------|
1416 * | stats entry length | reserved | S |stat type|
1417 * |------------------------------------------------------------|
1418 * | |
1419 * | type-specific stats info |
1420 * | |
1421 * |------------------------------------------------------------|
1422 * | stats entry length | reserved | S |stat type|
1423 * |------------------------------------------------------------|
1424 * | |
1425 * | type-specific stats info |
1426 * | |
1427 * |------------------------------------------------------------|
1428 * | n/a | reserved | 111 | n/a |
1429 * |------------------------------------------------------------|
1430 * Header fields:
1431 * - MSG_TYPE
1432 * Bits 7:0
1433 * Purpose: identifies this is a statistics upload confirmation message
1434 * Value: 0x9
1435 * - COOKIE_LSBS
1436 * Bits 31:0
1437 * Purpose: Provide a mechanism to match a target->host stats confirmation
1438 * message with its preceding host->target stats request message.
1439 * Value: LSBs of the opaque cookie specified by the host-side requestor
1440 * - COOKIE_MSBS
1441 * Bits 31:0
1442 * Purpose: Provide a mechanism to match a target->host stats confirmation
1443 * message with its preceding host->target stats request message.
1444 * Value: MSBs of the opaque cookie specified by the host-side requestor
1445 *
1446 * Stats Information Element tag-length header fields:
1447 * - STAT_TYPE
1448 * Bits 4:0
1449 * Purpose: identifies the type of statistics info held in the
1450 * following information element
1451 * Value: htt_dbg_stats_type
1452 * - STATUS
1453 * Bits 7:5
1454 * Purpose: indicate whether the requested stats are present
1455 * Value: htt_dbg_stats_status, including a special value (0x7) to mark
1456 * the completion of the stats entry series
1457 * - LENGTH
1458 * Bits 31:16
1459 * Purpose: indicate the stats information size
1460 * Value: This field specifies the number of bytes of stats information
1461 * that follows the element tag-length header.
1462 * It is expected but not required that this length is a multiple of
1463 * 4 bytes. Even if the length is not an integer multiple of 4, the
1464 * subsequent stats entry header will begin on a 4-byte aligned
1465 * boundary.
1466 */
1467
1468 #define HTT_STATS_CONF_ITEM_INFO_STAT_TYPE_MASK 0x1F
1469 #define HTT_STATS_CONF_ITEM_INFO_STAT_TYPE_LSB 0
1470 #define HTT_STATS_CONF_ITEM_INFO_STATUS_MASK 0xE0
1471 #define HTT_STATS_CONF_ITEM_INFO_STATUS_LSB 5
1472
1473 struct htt_stats_conf_item {
1474 union {
1475 u8 info;
1476 struct {
1477 u8 stat_type:5; /* %HTT_DBG_STATS_ */
1478 u8 status:3; /* %HTT_DBG_STATS_STATUS_ */
1479 } __packed;
1480 } __packed;
1481 u8 pad;
1482 __le16 length;
1483 u8 payload[0]; /* roundup(length, 4) long */
1484 } __packed;
1485
1486 struct htt_stats_conf {
1487 u8 pad[3];
1488 __le32 cookie_lsb;
1489 __le32 cookie_msb;
1490
1491 /* each item has variable length! */
1492 struct htt_stats_conf_item items[0];
1493 } __packed;
1494
htt_stats_conf_next_item(const struct htt_stats_conf_item * item)1495 static inline struct htt_stats_conf_item *htt_stats_conf_next_item(
1496 const struct htt_stats_conf_item *item)
1497 {
1498 return (void *)item + sizeof(*item) + roundup(item->length, 4);
1499 }
1500
1501 /*
1502 * host -> target FRAG DESCRIPTOR/MSDU_EXT DESC bank
1503 *
1504 * The following field definitions describe the format of the HTT host
1505 * to target frag_desc/msdu_ext bank configuration message.
1506 * The message contains the based address and the min and max id of the
1507 * MSDU_EXT/FRAG_DESC that will be used by the HTT to map MSDU DESC and
1508 * MSDU_EXT/FRAG_DESC.
1509 * HTT will use id in HTT descriptor instead sending the frag_desc_ptr.
1510 * For QCA988X HW the firmware will use fragment_desc_ptr but in WIFI2.0
1511 * the hardware does the mapping/translation.
1512 *
1513 * Total banks that can be configured is configured to 16.
1514 *
1515 * This should be called before any TX has be initiated by the HTT
1516 *
1517 * |31 16|15 8|7 5|4 0|
1518 * |------------------------------------------------------------|
1519 * | DESC_SIZE | NUM_BANKS | RES |SWP|pdev| msg type |
1520 * |------------------------------------------------------------|
1521 * | BANK0_BASE_ADDRESS |
1522 * |------------------------------------------------------------|
1523 * | ... |
1524 * |------------------------------------------------------------|
1525 * | BANK15_BASE_ADDRESS |
1526 * |------------------------------------------------------------|
1527 * | BANK0_MAX_ID | BANK0_MIN_ID |
1528 * |------------------------------------------------------------|
1529 * | ... |
1530 * |------------------------------------------------------------|
1531 * | BANK15_MAX_ID | BANK15_MIN_ID |
1532 * |------------------------------------------------------------|
1533 * Header fields:
1534 * - MSG_TYPE
1535 * Bits 7:0
1536 * Value: 0x6
1537 * - BANKx_BASE_ADDRESS
1538 * Bits 31:0
1539 * Purpose: Provide a mechanism to specify the base address of the MSDU_EXT
1540 * bank physical/bus address.
1541 * - BANKx_MIN_ID
1542 * Bits 15:0
1543 * Purpose: Provide a mechanism to specify the min index that needs to
1544 * mapped.
1545 * - BANKx_MAX_ID
1546 * Bits 31:16
1547 * Purpose: Provide a mechanism to specify the max index that needs to
1548 *
1549 */
1550 struct htt_frag_desc_bank_id {
1551 __le16 bank_min_id;
1552 __le16 bank_max_id;
1553 } __packed;
1554
1555 /* real is 16 but it wouldn't fit in the max htt message size
1556 * so we use a conservatively safe value for now
1557 */
1558 #define HTT_FRAG_DESC_BANK_MAX 4
1559
1560 #define HTT_FRAG_DESC_BANK_CFG_INFO_PDEV_ID_MASK 0x03
1561 #define HTT_FRAG_DESC_BANK_CFG_INFO_PDEV_ID_LSB 0
1562 #define HTT_FRAG_DESC_BANK_CFG_INFO_SWAP BIT(2)
1563 #define HTT_FRAG_DESC_BANK_CFG_INFO_Q_STATE_VALID BIT(3)
1564 #define HTT_FRAG_DESC_BANK_CFG_INFO_Q_STATE_DEPTH_TYPE_MASK BIT(4)
1565 #define HTT_FRAG_DESC_BANK_CFG_INFO_Q_STATE_DEPTH_TYPE_LSB 4
1566
1567 enum htt_q_depth_type {
1568 HTT_Q_DEPTH_TYPE_BYTES = 0,
1569 HTT_Q_DEPTH_TYPE_MSDUS = 1,
1570 };
1571
1572 #define HTT_TX_Q_STATE_NUM_PEERS (TARGET_10_4_NUM_QCACHE_PEERS_MAX + \
1573 TARGET_10_4_NUM_VDEVS)
1574 #define HTT_TX_Q_STATE_NUM_TIDS 8
1575 #define HTT_TX_Q_STATE_ENTRY_SIZE 1
1576 #define HTT_TX_Q_STATE_ENTRY_MULTIPLIER 0
1577
1578 /**
1579 * htt_q_state_conf - part of htt_frag_desc_bank_cfg for host q state config
1580 *
1581 * Defines host q state format and behavior. See htt_q_state.
1582 *
1583 * @record_size: Defines the size of each host q entry in bytes. In practice
1584 * however firmware (at least 10.4.3-00191) ignores this host
1585 * configuration value and uses hardcoded value of 1.
1586 * @record_multiplier: This is valid only when q depth type is MSDUs. It
1587 * defines the exponent for the power of 2 multiplication.
1588 */
1589 struct htt_q_state_conf {
1590 __le32 paddr;
1591 __le16 num_peers;
1592 __le16 num_tids;
1593 u8 record_size;
1594 u8 record_multiplier;
1595 u8 pad[2];
1596 } __packed;
1597
1598 struct htt_frag_desc_bank_cfg32 {
1599 u8 info; /* HTT_FRAG_DESC_BANK_CFG_INFO_ */
1600 u8 num_banks;
1601 u8 desc_size;
1602 __le32 bank_base_addrs[HTT_FRAG_DESC_BANK_MAX];
1603 struct htt_frag_desc_bank_id bank_id[HTT_FRAG_DESC_BANK_MAX];
1604 struct htt_q_state_conf q_state;
1605 } __packed;
1606
1607 struct htt_frag_desc_bank_cfg64 {
1608 u8 info; /* HTT_FRAG_DESC_BANK_CFG_INFO_ */
1609 u8 num_banks;
1610 u8 desc_size;
1611 __le64 bank_base_addrs[HTT_FRAG_DESC_BANK_MAX];
1612 struct htt_frag_desc_bank_id bank_id[HTT_FRAG_DESC_BANK_MAX];
1613 struct htt_q_state_conf q_state;
1614 } __packed;
1615
1616 #define HTT_TX_Q_STATE_ENTRY_COEFFICIENT 128
1617 #define HTT_TX_Q_STATE_ENTRY_FACTOR_MASK 0x3f
1618 #define HTT_TX_Q_STATE_ENTRY_FACTOR_LSB 0
1619 #define HTT_TX_Q_STATE_ENTRY_EXP_MASK 0xc0
1620 #define HTT_TX_Q_STATE_ENTRY_EXP_LSB 6
1621
1622 /**
1623 * htt_q_state - shared between host and firmware via DMA
1624 *
1625 * This structure is used for the host to expose it's software queue state to
1626 * firmware so that its rate control can schedule fetch requests for optimized
1627 * performance. This is most notably used for MU-MIMO aggregation when multiple
1628 * MU clients are connected.
1629 *
1630 * @count: Each element defines the host queue depth. When q depth type was
1631 * configured as HTT_Q_DEPTH_TYPE_BYTES then each entry is defined as:
1632 * FACTOR * 128 * 8^EXP (see HTT_TX_Q_STATE_ENTRY_FACTOR_MASK and
1633 * HTT_TX_Q_STATE_ENTRY_EXP_MASK). When q depth type was configured as
1634 * HTT_Q_DEPTH_TYPE_MSDUS the number of packets is scaled by 2 **
1635 * record_multiplier (see htt_q_state_conf).
1636 * @map: Used by firmware to quickly check which host queues are not empty. It
1637 * is a bitmap simply saying.
1638 * @seq: Used by firmware to quickly check if the host queues were updated
1639 * since it last checked.
1640 *
1641 * FIXME: Is the q_state map[] size calculation really correct?
1642 */
1643 struct htt_q_state {
1644 u8 count[HTT_TX_Q_STATE_NUM_TIDS][HTT_TX_Q_STATE_NUM_PEERS];
1645 u32 map[HTT_TX_Q_STATE_NUM_TIDS][(HTT_TX_Q_STATE_NUM_PEERS + 31) / 32];
1646 __le32 seq;
1647 } __packed;
1648
1649 #define HTT_TX_FETCH_RECORD_INFO_PEER_ID_MASK 0x0fff
1650 #define HTT_TX_FETCH_RECORD_INFO_PEER_ID_LSB 0
1651 #define HTT_TX_FETCH_RECORD_INFO_TID_MASK 0xf000
1652 #define HTT_TX_FETCH_RECORD_INFO_TID_LSB 12
1653
1654 struct htt_tx_fetch_record {
1655 __le16 info; /* HTT_TX_FETCH_IND_RECORD_INFO_ */
1656 __le16 num_msdus;
1657 __le32 num_bytes;
1658 } __packed;
1659
1660 struct htt_tx_fetch_ind {
1661 u8 pad0;
1662 __le16 fetch_seq_num;
1663 __le32 token;
1664 __le16 num_resp_ids;
1665 __le16 num_records;
1666 struct htt_tx_fetch_record records[0];
1667 __le32 resp_ids[0]; /* ath10k_htt_get_tx_fetch_ind_resp_ids() */
1668 } __packed;
1669
1670 static inline void *
ath10k_htt_get_tx_fetch_ind_resp_ids(struct htt_tx_fetch_ind * ind)1671 ath10k_htt_get_tx_fetch_ind_resp_ids(struct htt_tx_fetch_ind *ind)
1672 {
1673 return (void *)&ind->records[le16_to_cpu(ind->num_records)];
1674 }
1675
1676 struct htt_tx_fetch_resp {
1677 u8 pad0;
1678 __le16 resp_id;
1679 __le16 fetch_seq_num;
1680 __le16 num_records;
1681 __le32 token;
1682 struct htt_tx_fetch_record records[0];
1683 } __packed;
1684
1685 struct htt_tx_fetch_confirm {
1686 u8 pad0;
1687 __le16 num_resp_ids;
1688 __le32 resp_ids[0];
1689 } __packed;
1690
1691 enum htt_tx_mode_switch_mode {
1692 HTT_TX_MODE_SWITCH_PUSH = 0,
1693 HTT_TX_MODE_SWITCH_PUSH_PULL = 1,
1694 };
1695
1696 #define HTT_TX_MODE_SWITCH_IND_INFO0_ENABLE BIT(0)
1697 #define HTT_TX_MODE_SWITCH_IND_INFO0_NUM_RECORDS_MASK 0xfffe
1698 #define HTT_TX_MODE_SWITCH_IND_INFO0_NUM_RECORDS_LSB 1
1699
1700 #define HTT_TX_MODE_SWITCH_IND_INFO1_MODE_MASK 0x0003
1701 #define HTT_TX_MODE_SWITCH_IND_INFO1_MODE_LSB 0
1702 #define HTT_TX_MODE_SWITCH_IND_INFO1_THRESHOLD_MASK 0xfffc
1703 #define HTT_TX_MODE_SWITCH_IND_INFO1_THRESHOLD_LSB 2
1704
1705 #define HTT_TX_MODE_SWITCH_RECORD_INFO0_PEER_ID_MASK 0x0fff
1706 #define HTT_TX_MODE_SWITCH_RECORD_INFO0_PEER_ID_LSB 0
1707 #define HTT_TX_MODE_SWITCH_RECORD_INFO0_TID_MASK 0xf000
1708 #define HTT_TX_MODE_SWITCH_RECORD_INFO0_TID_LSB 12
1709
1710 struct htt_tx_mode_switch_record {
1711 __le16 info0; /* HTT_TX_MODE_SWITCH_RECORD_INFO0_ */
1712 __le16 num_max_msdus;
1713 } __packed;
1714
1715 struct htt_tx_mode_switch_ind {
1716 u8 pad0;
1717 __le16 info0; /* HTT_TX_MODE_SWITCH_IND_INFO0_ */
1718 __le16 info1; /* HTT_TX_MODE_SWITCH_IND_INFO1_ */
1719 u8 pad1[2];
1720 struct htt_tx_mode_switch_record records[0];
1721 } __packed;
1722
1723 struct htt_channel_change {
1724 u8 pad[3];
1725 __le32 freq;
1726 __le32 center_freq1;
1727 __le32 center_freq2;
1728 __le32 phymode;
1729 } __packed;
1730
1731 struct htt_per_peer_tx_stats_ind {
1732 __le32 succ_bytes;
1733 __le32 retry_bytes;
1734 __le32 failed_bytes;
1735 u8 ratecode;
1736 u8 flags;
1737 __le16 peer_id;
1738 __le16 succ_pkts;
1739 __le16 retry_pkts;
1740 __le16 failed_pkts;
1741 __le16 tx_duration;
1742 __le32 reserved1;
1743 __le32 reserved2;
1744 } __packed;
1745
1746 struct htt_peer_tx_stats {
1747 u8 num_ppdu;
1748 u8 ppdu_len;
1749 u8 version;
1750 u8 payload[0];
1751 } __packed;
1752
1753 #define ATH10K_10_2_TX_STATS_OFFSET 136
1754 #define PEER_STATS_FOR_NO_OF_PPDUS 4
1755
1756 struct ath10k_10_2_peer_tx_stats {
1757 u8 ratecode[PEER_STATS_FOR_NO_OF_PPDUS];
1758 u8 success_pkts[PEER_STATS_FOR_NO_OF_PPDUS];
1759 __le16 success_bytes[PEER_STATS_FOR_NO_OF_PPDUS];
1760 u8 retry_pkts[PEER_STATS_FOR_NO_OF_PPDUS];
1761 __le16 retry_bytes[PEER_STATS_FOR_NO_OF_PPDUS];
1762 u8 failed_pkts[PEER_STATS_FOR_NO_OF_PPDUS];
1763 __le16 failed_bytes[PEER_STATS_FOR_NO_OF_PPDUS];
1764 u8 flags[PEER_STATS_FOR_NO_OF_PPDUS];
1765 __le32 tx_duration;
1766 u8 tx_ppdu_cnt;
1767 u8 peer_id;
1768 } __packed;
1769
1770 union htt_rx_pn_t {
1771 /* WEP: 24-bit PN */
1772 u32 pn24;
1773
1774 /* TKIP or CCMP: 48-bit PN */
1775 u64 pn48;
1776
1777 /* WAPI: 128-bit PN */
1778 u64 pn128[2];
1779 };
1780
1781 struct htt_cmd {
1782 struct htt_cmd_hdr hdr;
1783 union {
1784 struct htt_ver_req ver_req;
1785 struct htt_mgmt_tx_desc mgmt_tx;
1786 struct htt_data_tx_desc data_tx;
1787 struct htt_rx_ring_setup_32 rx_setup_32;
1788 struct htt_rx_ring_setup_64 rx_setup_64;
1789 struct htt_stats_req stats_req;
1790 struct htt_oob_sync_req oob_sync_req;
1791 struct htt_aggr_conf aggr_conf;
1792 struct htt_aggr_conf_v2 aggr_conf_v2;
1793 struct htt_frag_desc_bank_cfg32 frag_desc_bank_cfg32;
1794 struct htt_frag_desc_bank_cfg64 frag_desc_bank_cfg64;
1795 struct htt_tx_fetch_resp tx_fetch_resp;
1796 };
1797 } __packed;
1798
1799 struct htt_resp {
1800 struct htt_resp_hdr hdr;
1801 union {
1802 struct htt_ver_resp ver_resp;
1803 struct htt_mgmt_tx_completion mgmt_tx_completion;
1804 struct htt_data_tx_completion data_tx_completion;
1805 struct htt_rx_indication rx_ind;
1806 struct htt_rx_indication_hl rx_ind_hl;
1807 struct htt_rx_fragment_indication rx_frag_ind;
1808 struct htt_rx_peer_map peer_map;
1809 struct htt_rx_peer_unmap peer_unmap;
1810 struct htt_rx_flush rx_flush;
1811 struct htt_rx_addba rx_addba;
1812 struct htt_rx_delba rx_delba;
1813 struct htt_security_indication security_indication;
1814 struct htt_rc_update rc_update;
1815 struct htt_rx_test rx_test;
1816 struct htt_pktlog_msg pktlog_msg;
1817 struct htt_stats_conf stats_conf;
1818 struct htt_rx_pn_ind rx_pn_ind;
1819 struct htt_rx_offload_ind rx_offload_ind;
1820 struct htt_rx_in_ord_ind rx_in_ord_ind;
1821 struct htt_tx_fetch_ind tx_fetch_ind;
1822 struct htt_tx_fetch_confirm tx_fetch_confirm;
1823 struct htt_tx_mode_switch_ind tx_mode_switch_ind;
1824 struct htt_channel_change chan_change;
1825 struct htt_peer_tx_stats peer_tx_stats;
1826 };
1827 } __packed;
1828
1829 /*** host side structures follow ***/
1830
1831 struct htt_tx_done {
1832 u16 msdu_id;
1833 u16 status;
1834 u8 ack_rssi;
1835 };
1836
1837 enum htt_tx_compl_state {
1838 HTT_TX_COMPL_STATE_NONE,
1839 HTT_TX_COMPL_STATE_ACK,
1840 HTT_TX_COMPL_STATE_NOACK,
1841 HTT_TX_COMPL_STATE_DISCARD,
1842 };
1843
1844 struct htt_peer_map_event {
1845 u8 vdev_id;
1846 u16 peer_id;
1847 u8 addr[ETH_ALEN];
1848 };
1849
1850 struct htt_peer_unmap_event {
1851 u16 peer_id;
1852 };
1853
1854 struct ath10k_htt_txbuf_32 {
1855 struct htt_data_tx_desc_frag frags[2];
1856 struct ath10k_htc_hdr htc_hdr;
1857 struct htt_cmd_hdr cmd_hdr;
1858 struct htt_data_tx_desc cmd_tx;
1859 } __packed __aligned(4);
1860
1861 struct ath10k_htt_txbuf_64 {
1862 struct htt_data_tx_desc_frag frags[2];
1863 struct ath10k_htc_hdr htc_hdr;
1864 struct htt_cmd_hdr cmd_hdr;
1865 struct htt_data_tx_desc_64 cmd_tx;
1866 } __packed __aligned(4);
1867
1868 struct ath10k_htt {
1869 struct ath10k *ar;
1870 enum ath10k_htc_ep_id eid;
1871
1872 u8 target_version_major;
1873 u8 target_version_minor;
1874 struct completion target_version_received;
1875 u8 max_num_amsdu;
1876 u8 max_num_ampdu;
1877
1878 const enum htt_t2h_msg_type *t2h_msg_types;
1879 u32 t2h_msg_types_max;
1880
1881 struct {
1882 /*
1883 * Ring of network buffer objects - This ring is
1884 * used exclusively by the host SW. This ring
1885 * mirrors the dev_addrs_ring that is shared
1886 * between the host SW and the MAC HW. The host SW
1887 * uses this netbufs ring to locate the network
1888 * buffer objects whose data buffers the HW has
1889 * filled.
1890 */
1891 struct sk_buff **netbufs_ring;
1892
1893 /* This is used only with firmware supporting IN_ORD_IND.
1894 *
1895 * With Full Rx Reorder the HTT Rx Ring is more of a temporary
1896 * buffer ring from which buffer addresses are copied by the
1897 * firmware to MAC Rx ring. Firmware then delivers IN_ORD_IND
1898 * pointing to specific (re-ordered) buffers.
1899 *
1900 * FIXME: With kernel generic hashing functions there's a lot
1901 * of hash collisions for sk_buffs.
1902 */
1903 bool in_ord_rx;
1904 DECLARE_HASHTABLE(skb_table, 4);
1905
1906 /*
1907 * Ring of buffer addresses -
1908 * This ring holds the "physical" device address of the
1909 * rx buffers the host SW provides for the MAC HW to
1910 * fill.
1911 */
1912 union {
1913 __le64 *paddrs_ring_64;
1914 __le32 *paddrs_ring_32;
1915 };
1916
1917 /*
1918 * Base address of ring, as a "physical" device address
1919 * rather than a CPU address.
1920 */
1921 dma_addr_t base_paddr;
1922
1923 /* how many elems in the ring (power of 2) */
1924 int size;
1925
1926 /* size - 1 */
1927 unsigned int size_mask;
1928
1929 /* how many rx buffers to keep in the ring */
1930 int fill_level;
1931
1932 /* how many rx buffers (full+empty) are in the ring */
1933 int fill_cnt;
1934
1935 /*
1936 * alloc_idx - where HTT SW has deposited empty buffers
1937 * This is allocated in consistent mem, so that the FW can
1938 * read this variable, and program the HW's FW_IDX reg with
1939 * the value of this shadow register.
1940 */
1941 struct {
1942 __le32 *vaddr;
1943 dma_addr_t paddr;
1944 } alloc_idx;
1945
1946 /* where HTT SW has processed bufs filled by rx MAC DMA */
1947 struct {
1948 unsigned int msdu_payld;
1949 } sw_rd_idx;
1950
1951 /*
1952 * refill_retry_timer - timer triggered when the ring is
1953 * not refilled to the level expected
1954 */
1955 struct timer_list refill_retry_timer;
1956
1957 /* Protects access to all rx ring buffer state variables */
1958 spinlock_t lock;
1959 } rx_ring;
1960
1961 unsigned int prefetch_len;
1962
1963 /* Protects access to pending_tx, num_pending_tx */
1964 spinlock_t tx_lock;
1965 int max_num_pending_tx;
1966 int num_pending_tx;
1967 int num_pending_mgmt_tx;
1968 struct idr pending_tx;
1969 wait_queue_head_t empty_tx_wq;
1970
1971 /* FIFO for storing tx done status {ack, no-ack, discard} and msdu id */
1972 DECLARE_KFIFO_PTR(txdone_fifo, struct htt_tx_done);
1973
1974 /* set if host-fw communication goes haywire
1975 * used to avoid further failures
1976 */
1977 bool rx_confused;
1978 atomic_t num_mpdus_ready;
1979
1980 /* This is used to group tx/rx completions separately and process them
1981 * in batches to reduce cache stalls
1982 */
1983 struct sk_buff_head rx_msdus_q;
1984 struct sk_buff_head rx_in_ord_compl_q;
1985 struct sk_buff_head tx_fetch_ind_q;
1986
1987 /* rx_status template */
1988 struct ieee80211_rx_status rx_status;
1989
1990 struct {
1991 dma_addr_t paddr;
1992 union {
1993 struct htt_msdu_ext_desc *vaddr_desc_32;
1994 struct htt_msdu_ext_desc_64 *vaddr_desc_64;
1995 };
1996 size_t size;
1997 } frag_desc;
1998
1999 struct {
2000 dma_addr_t paddr;
2001 union {
2002 struct ath10k_htt_txbuf_32 *vaddr_txbuff_32;
2003 struct ath10k_htt_txbuf_64 *vaddr_txbuff_64;
2004 };
2005 size_t size;
2006 } txbuf;
2007
2008 struct {
2009 bool enabled;
2010 struct htt_q_state *vaddr;
2011 dma_addr_t paddr;
2012 u16 num_push_allowed;
2013 u16 num_peers;
2014 u16 num_tids;
2015 enum htt_tx_mode_switch_mode mode;
2016 enum htt_q_depth_type type;
2017 } tx_q_state;
2018
2019 bool tx_mem_allocated;
2020 const struct ath10k_htt_tx_ops *tx_ops;
2021 const struct ath10k_htt_rx_ops *rx_ops;
2022 };
2023
2024 struct ath10k_htt_tx_ops {
2025 int (*htt_send_rx_ring_cfg)(struct ath10k_htt *htt);
2026 int (*htt_send_frag_desc_bank_cfg)(struct ath10k_htt *htt);
2027 int (*htt_alloc_frag_desc)(struct ath10k_htt *htt);
2028 void (*htt_free_frag_desc)(struct ath10k_htt *htt);
2029 int (*htt_tx)(struct ath10k_htt *htt, enum ath10k_hw_txrx_mode txmode,
2030 struct sk_buff *msdu);
2031 int (*htt_alloc_txbuff)(struct ath10k_htt *htt);
2032 void (*htt_free_txbuff)(struct ath10k_htt *htt);
2033 int (*htt_h2t_aggr_cfg_msg)(struct ath10k_htt *htt,
2034 u8 max_subfrms_ampdu,
2035 u8 max_subfrms_amsdu);
2036 };
2037
ath10k_htt_send_rx_ring_cfg(struct ath10k_htt * htt)2038 static inline int ath10k_htt_send_rx_ring_cfg(struct ath10k_htt *htt)
2039 {
2040 if (!htt->tx_ops->htt_send_rx_ring_cfg)
2041 return -EOPNOTSUPP;
2042
2043 return htt->tx_ops->htt_send_rx_ring_cfg(htt);
2044 }
2045
ath10k_htt_send_frag_desc_bank_cfg(struct ath10k_htt * htt)2046 static inline int ath10k_htt_send_frag_desc_bank_cfg(struct ath10k_htt *htt)
2047 {
2048 if (!htt->tx_ops->htt_send_frag_desc_bank_cfg)
2049 return -EOPNOTSUPP;
2050
2051 return htt->tx_ops->htt_send_frag_desc_bank_cfg(htt);
2052 }
2053
ath10k_htt_alloc_frag_desc(struct ath10k_htt * htt)2054 static inline int ath10k_htt_alloc_frag_desc(struct ath10k_htt *htt)
2055 {
2056 if (!htt->tx_ops->htt_alloc_frag_desc)
2057 return -EOPNOTSUPP;
2058
2059 return htt->tx_ops->htt_alloc_frag_desc(htt);
2060 }
2061
ath10k_htt_free_frag_desc(struct ath10k_htt * htt)2062 static inline void ath10k_htt_free_frag_desc(struct ath10k_htt *htt)
2063 {
2064 if (htt->tx_ops->htt_free_frag_desc)
2065 htt->tx_ops->htt_free_frag_desc(htt);
2066 }
2067
ath10k_htt_tx(struct ath10k_htt * htt,enum ath10k_hw_txrx_mode txmode,struct sk_buff * msdu)2068 static inline int ath10k_htt_tx(struct ath10k_htt *htt,
2069 enum ath10k_hw_txrx_mode txmode,
2070 struct sk_buff *msdu)
2071 {
2072 return htt->tx_ops->htt_tx(htt, txmode, msdu);
2073 }
2074
ath10k_htt_alloc_txbuff(struct ath10k_htt * htt)2075 static inline int ath10k_htt_alloc_txbuff(struct ath10k_htt *htt)
2076 {
2077 if (!htt->tx_ops->htt_alloc_txbuff)
2078 return -EOPNOTSUPP;
2079
2080 return htt->tx_ops->htt_alloc_txbuff(htt);
2081 }
2082
ath10k_htt_free_txbuff(struct ath10k_htt * htt)2083 static inline void ath10k_htt_free_txbuff(struct ath10k_htt *htt)
2084 {
2085 if (htt->tx_ops->htt_free_txbuff)
2086 htt->tx_ops->htt_free_txbuff(htt);
2087 }
2088
ath10k_htt_h2t_aggr_cfg_msg(struct ath10k_htt * htt,u8 max_subfrms_ampdu,u8 max_subfrms_amsdu)2089 static inline int ath10k_htt_h2t_aggr_cfg_msg(struct ath10k_htt *htt,
2090 u8 max_subfrms_ampdu,
2091 u8 max_subfrms_amsdu)
2092
2093 {
2094 if (!htt->tx_ops->htt_h2t_aggr_cfg_msg)
2095 return -EOPNOTSUPP;
2096
2097 return htt->tx_ops->htt_h2t_aggr_cfg_msg(htt,
2098 max_subfrms_ampdu,
2099 max_subfrms_amsdu);
2100 }
2101
2102 struct ath10k_htt_rx_ops {
2103 size_t (*htt_get_rx_ring_size)(struct ath10k_htt *htt);
2104 void (*htt_config_paddrs_ring)(struct ath10k_htt *htt, void *vaddr);
2105 void (*htt_set_paddrs_ring)(struct ath10k_htt *htt, dma_addr_t paddr,
2106 int idx);
2107 void* (*htt_get_vaddr_ring)(struct ath10k_htt *htt);
2108 void (*htt_reset_paddrs_ring)(struct ath10k_htt *htt, int idx);
2109 bool (*htt_rx_proc_rx_frag_ind)(struct ath10k_htt *htt,
2110 struct htt_rx_fragment_indication *rx,
2111 struct sk_buff *skb);
2112 };
2113
ath10k_htt_get_rx_ring_size(struct ath10k_htt * htt)2114 static inline size_t ath10k_htt_get_rx_ring_size(struct ath10k_htt *htt)
2115 {
2116 if (!htt->rx_ops->htt_get_rx_ring_size)
2117 return 0;
2118
2119 return htt->rx_ops->htt_get_rx_ring_size(htt);
2120 }
2121
ath10k_htt_config_paddrs_ring(struct ath10k_htt * htt,void * vaddr)2122 static inline void ath10k_htt_config_paddrs_ring(struct ath10k_htt *htt,
2123 void *vaddr)
2124 {
2125 if (htt->rx_ops->htt_config_paddrs_ring)
2126 htt->rx_ops->htt_config_paddrs_ring(htt, vaddr);
2127 }
2128
ath10k_htt_set_paddrs_ring(struct ath10k_htt * htt,dma_addr_t paddr,int idx)2129 static inline void ath10k_htt_set_paddrs_ring(struct ath10k_htt *htt,
2130 dma_addr_t paddr,
2131 int idx)
2132 {
2133 if (htt->rx_ops->htt_set_paddrs_ring)
2134 htt->rx_ops->htt_set_paddrs_ring(htt, paddr, idx);
2135 }
2136
ath10k_htt_get_vaddr_ring(struct ath10k_htt * htt)2137 static inline void *ath10k_htt_get_vaddr_ring(struct ath10k_htt *htt)
2138 {
2139 if (!htt->rx_ops->htt_get_vaddr_ring)
2140 return NULL;
2141
2142 return htt->rx_ops->htt_get_vaddr_ring(htt);
2143 }
2144
ath10k_htt_reset_paddrs_ring(struct ath10k_htt * htt,int idx)2145 static inline void ath10k_htt_reset_paddrs_ring(struct ath10k_htt *htt, int idx)
2146 {
2147 if (htt->rx_ops->htt_reset_paddrs_ring)
2148 htt->rx_ops->htt_reset_paddrs_ring(htt, idx);
2149 }
2150
ath10k_htt_rx_proc_rx_frag_ind(struct ath10k_htt * htt,struct htt_rx_fragment_indication * rx,struct sk_buff * skb)2151 static inline bool ath10k_htt_rx_proc_rx_frag_ind(struct ath10k_htt *htt,
2152 struct htt_rx_fragment_indication *rx,
2153 struct sk_buff *skb)
2154 {
2155 if (!htt->rx_ops->htt_rx_proc_rx_frag_ind)
2156 return true;
2157
2158 return htt->rx_ops->htt_rx_proc_rx_frag_ind(htt, rx, skb);
2159 }
2160
2161 #define RX_HTT_HDR_STATUS_LEN 64
2162
2163 /* This structure layout is programmed via rx ring setup
2164 * so that FW knows how to transfer the rx descriptor to the host.
2165 * Buffers like this are placed on the rx ring.
2166 */
2167 struct htt_rx_desc {
2168 union {
2169 /* This field is filled on the host using the msdu buffer
2170 * from htt_rx_indication
2171 */
2172 struct fw_rx_desc_base fw_desc;
2173 u32 pad;
2174 } __packed;
2175 struct {
2176 struct rx_attention attention;
2177 struct rx_frag_info frag_info;
2178 struct rx_mpdu_start mpdu_start;
2179 struct rx_msdu_start msdu_start;
2180 struct rx_msdu_end msdu_end;
2181 struct rx_mpdu_end mpdu_end;
2182 struct rx_ppdu_start ppdu_start;
2183 struct rx_ppdu_end ppdu_end;
2184 } __packed;
2185 u8 rx_hdr_status[RX_HTT_HDR_STATUS_LEN];
2186 u8 msdu_payload[0];
2187 };
2188
2189 #define HTT_RX_DESC_HL_INFO_SEQ_NUM_MASK 0x00000fff
2190 #define HTT_RX_DESC_HL_INFO_SEQ_NUM_LSB 0
2191 #define HTT_RX_DESC_HL_INFO_ENCRYPTED_MASK 0x00001000
2192 #define HTT_RX_DESC_HL_INFO_ENCRYPTED_LSB 12
2193 #define HTT_RX_DESC_HL_INFO_CHAN_INFO_PRESENT_MASK 0x00002000
2194 #define HTT_RX_DESC_HL_INFO_CHAN_INFO_PRESENT_LSB 13
2195 #define HTT_RX_DESC_HL_INFO_MCAST_BCAST_MASK 0x00010000
2196 #define HTT_RX_DESC_HL_INFO_MCAST_BCAST_LSB 16
2197 #define HTT_RX_DESC_HL_INFO_KEY_ID_OCT_MASK 0x01fe0000
2198 #define HTT_RX_DESC_HL_INFO_KEY_ID_OCT_LSB 17
2199
2200 struct htt_rx_desc_base_hl {
2201 __le32 info; /* HTT_RX_DESC_HL_INFO_ */
2202 };
2203
2204 struct htt_rx_chan_info {
2205 __le16 primary_chan_center_freq_mhz;
2206 __le16 contig_chan1_center_freq_mhz;
2207 __le16 contig_chan2_center_freq_mhz;
2208 u8 phy_mode;
2209 u8 reserved;
2210 } __packed;
2211
2212 #define HTT_RX_DESC_ALIGN 8
2213
2214 #define HTT_MAC_ADDR_LEN 6
2215
2216 /*
2217 * FIX THIS
2218 * Should be: sizeof(struct htt_host_rx_desc) + max rx MSDU size,
2219 * rounded up to a cache line size.
2220 */
2221 #define HTT_RX_BUF_SIZE 1920
2222 #define HTT_RX_MSDU_SIZE (HTT_RX_BUF_SIZE - (int)sizeof(struct htt_rx_desc))
2223
2224 /* Refill a bunch of RX buffers for each refill round so that FW/HW can handle
2225 * aggregated traffic more nicely.
2226 */
2227 #define ATH10K_HTT_MAX_NUM_REFILL 100
2228
2229 /*
2230 * DMA_MAP expects the buffer to be an integral number of cache lines.
2231 * Rather than checking the actual cache line size, this code makes a
2232 * conservative estimate of what the cache line size could be.
2233 */
2234 #define HTT_LOG2_MAX_CACHE_LINE_SIZE 7 /* 2^7 = 128 */
2235 #define HTT_MAX_CACHE_LINE_SIZE_MASK ((1 << HTT_LOG2_MAX_CACHE_LINE_SIZE) - 1)
2236
2237 /* These values are default in most firmware revisions and apparently are a
2238 * sweet spot performance wise.
2239 */
2240 #define ATH10K_HTT_MAX_NUM_AMSDU_DEFAULT 3
2241 #define ATH10K_HTT_MAX_NUM_AMPDU_DEFAULT 64
2242
2243 int ath10k_htt_connect(struct ath10k_htt *htt);
2244 int ath10k_htt_init(struct ath10k *ar);
2245 int ath10k_htt_setup(struct ath10k_htt *htt);
2246
2247 int ath10k_htt_tx_start(struct ath10k_htt *htt);
2248 void ath10k_htt_tx_stop(struct ath10k_htt *htt);
2249 void ath10k_htt_tx_destroy(struct ath10k_htt *htt);
2250 void ath10k_htt_tx_free(struct ath10k_htt *htt);
2251
2252 int ath10k_htt_rx_alloc(struct ath10k_htt *htt);
2253 int ath10k_htt_rx_ring_refill(struct ath10k *ar);
2254 void ath10k_htt_rx_free(struct ath10k_htt *htt);
2255
2256 void ath10k_htt_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb);
2257 void ath10k_htt_htc_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb);
2258 bool ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb);
2259 int ath10k_htt_h2t_ver_req_msg(struct ath10k_htt *htt);
2260 int ath10k_htt_h2t_stats_req(struct ath10k_htt *htt, u32 mask, u32 reset_mask,
2261 u64 cookie);
2262 void ath10k_htt_hif_tx_complete(struct ath10k *ar, struct sk_buff *skb);
2263 int ath10k_htt_tx_fetch_resp(struct ath10k *ar,
2264 __le32 token,
2265 __le16 fetch_seq_num,
2266 struct htt_tx_fetch_record *records,
2267 size_t num_records);
2268
2269 void ath10k_htt_tx_txq_update(struct ieee80211_hw *hw,
2270 struct ieee80211_txq *txq);
2271 void ath10k_htt_tx_txq_recalc(struct ieee80211_hw *hw,
2272 struct ieee80211_txq *txq);
2273 void ath10k_htt_tx_txq_sync(struct ath10k *ar);
2274 void ath10k_htt_tx_dec_pending(struct ath10k_htt *htt);
2275 int ath10k_htt_tx_inc_pending(struct ath10k_htt *htt);
2276 void ath10k_htt_tx_mgmt_dec_pending(struct ath10k_htt *htt);
2277 int ath10k_htt_tx_mgmt_inc_pending(struct ath10k_htt *htt, bool is_mgmt,
2278 bool is_presp);
2279
2280 int ath10k_htt_tx_alloc_msdu_id(struct ath10k_htt *htt, struct sk_buff *skb);
2281 void ath10k_htt_tx_free_msdu_id(struct ath10k_htt *htt, u16 msdu_id);
2282 int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu);
2283 void ath10k_htt_rx_pktlog_completion_handler(struct ath10k *ar,
2284 struct sk_buff *skb);
2285 int ath10k_htt_txrx_compl_task(struct ath10k *ar, int budget);
2286 void ath10k_htt_set_tx_ops(struct ath10k_htt *htt);
2287 void ath10k_htt_set_rx_ops(struct ath10k_htt *htt);
2288 #endif
2289
