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 * Copyright (c) 2021, 2023-2024 Qualcomm Innovation Center, Inc. All rights reserved.
7 */
8
9 #ifndef _HTT_H_
10 #define _HTT_H_
11
12 #include <linux/bug.h>
13 #include <linux/interrupt.h>
14 #include <linux/dmapool.h>
15 #include <linux/hashtable.h>
16 #include <linux/kfifo.h>
17 #include <net/mac80211.h>
18
19 #include "htc.h"
20 #include "hw.h"
21 #include "rx_desc.h"
22
23 enum htt_dbg_stats_type {
24 HTT_DBG_STATS_WAL_PDEV_TXRX = 1 << 0,
25 HTT_DBG_STATS_RX_REORDER = 1 << 1,
26 HTT_DBG_STATS_RX_RATE_INFO = 1 << 2,
27 HTT_DBG_STATS_TX_PPDU_LOG = 1 << 3,
28 HTT_DBG_STATS_TX_RATE_INFO = 1 << 4,
29 /* bits 5-23 currently reserved */
30
31 HTT_DBG_NUM_STATS /* keep this last */
32 };
33
34 enum htt_h2t_msg_type { /* host-to-target */
35 HTT_H2T_MSG_TYPE_VERSION_REQ = 0,
36 HTT_H2T_MSG_TYPE_TX_FRM = 1,
37 HTT_H2T_MSG_TYPE_RX_RING_CFG = 2,
38 HTT_H2T_MSG_TYPE_STATS_REQ = 3,
39 HTT_H2T_MSG_TYPE_SYNC = 4,
40 HTT_H2T_MSG_TYPE_AGGR_CFG = 5,
41 HTT_H2T_MSG_TYPE_FRAG_DESC_BANK_CFG = 6,
42
43 /* This command is used for sending management frames in HTT < 3.0.
44 * HTT >= 3.0 uses TX_FRM for everything.
45 */
46 HTT_H2T_MSG_TYPE_MGMT_TX = 7,
47 HTT_H2T_MSG_TYPE_TX_FETCH_RESP = 11,
48
49 HTT_H2T_NUM_MSGS /* keep this last */
50 };
51
52 struct htt_cmd_hdr {
53 u8 msg_type;
54 } __packed;
55
56 struct htt_ver_req {
57 u8 pad[sizeof(u32) - sizeof(struct htt_cmd_hdr)];
58 } __packed;
59
60 /*
61 * HTT tx MSDU descriptor
62 *
63 * The HTT tx MSDU descriptor is created by the host HTT SW for each
64 * tx MSDU. The HTT tx MSDU descriptor contains the information that
65 * the target firmware needs for the FW's tx processing, particularly
66 * for creating the HW msdu descriptor.
67 * The same HTT tx descriptor is used for HL and LL systems, though
68 * a few fields within the tx descriptor are used only by LL or
69 * only by HL.
70 * The HTT tx descriptor is defined in two manners: by a struct with
71 * bitfields, and by a series of [dword offset, bit mask, bit shift]
72 * definitions.
73 * The target should use the struct def, for simplicity and clarity,
74 * but the host shall use the bit-mast + bit-shift defs, to be endian-
75 * neutral. Specifically, the host shall use the get/set macros built
76 * around the mask + shift defs.
77 */
78 struct htt_data_tx_desc_frag {
79 union {
80 struct double_word_addr {
81 __le32 paddr;
82 __le32 len;
83 } __packed dword_addr;
84 struct triple_word_addr {
85 __le32 paddr_lo;
86 __le16 paddr_hi;
87 __le16 len_16;
88 } __packed tword_addr;
89 } __packed;
90 } __packed;
91
92 struct htt_msdu_ext_desc {
93 __le32 tso_flag[3];
94 __le16 ip_identification;
95 u8 flags;
96 u8 reserved;
97 struct htt_data_tx_desc_frag frags[6];
98 };
99
100 struct htt_msdu_ext_desc_64 {
101 __le32 tso_flag[5];
102 __le16 ip_identification;
103 u8 flags;
104 u8 reserved;
105 struct htt_data_tx_desc_frag frags[6];
106 };
107
108 #define HTT_MSDU_EXT_DESC_FLAG_IPV4_CSUM_ENABLE BIT(0)
109 #define HTT_MSDU_EXT_DESC_FLAG_UDP_IPV4_CSUM_ENABLE BIT(1)
110 #define HTT_MSDU_EXT_DESC_FLAG_UDP_IPV6_CSUM_ENABLE BIT(2)
111 #define HTT_MSDU_EXT_DESC_FLAG_TCP_IPV4_CSUM_ENABLE BIT(3)
112 #define HTT_MSDU_EXT_DESC_FLAG_TCP_IPV6_CSUM_ENABLE BIT(4)
113
114 #define HTT_MSDU_CHECKSUM_ENABLE (HTT_MSDU_EXT_DESC_FLAG_IPV4_CSUM_ENABLE \
115 | HTT_MSDU_EXT_DESC_FLAG_UDP_IPV4_CSUM_ENABLE \
116 | HTT_MSDU_EXT_DESC_FLAG_UDP_IPV6_CSUM_ENABLE \
117 | HTT_MSDU_EXT_DESC_FLAG_TCP_IPV4_CSUM_ENABLE \
118 | HTT_MSDU_EXT_DESC_FLAG_TCP_IPV6_CSUM_ENABLE)
119
120 #define HTT_MSDU_EXT_DESC_FLAG_IPV4_CSUM_ENABLE_64 BIT(16)
121 #define HTT_MSDU_EXT_DESC_FLAG_UDP_IPV4_CSUM_ENABLE_64 BIT(17)
122 #define HTT_MSDU_EXT_DESC_FLAG_UDP_IPV6_CSUM_ENABLE_64 BIT(18)
123 #define HTT_MSDU_EXT_DESC_FLAG_TCP_IPV4_CSUM_ENABLE_64 BIT(19)
124 #define HTT_MSDU_EXT_DESC_FLAG_TCP_IPV6_CSUM_ENABLE_64 BIT(20)
125 #define HTT_MSDU_EXT_DESC_FLAG_PARTIAL_CSUM_ENABLE_64 BIT(21)
126
127 #define HTT_MSDU_CHECKSUM_ENABLE_64 (HTT_MSDU_EXT_DESC_FLAG_IPV4_CSUM_ENABLE_64 \
128 | HTT_MSDU_EXT_DESC_FLAG_UDP_IPV4_CSUM_ENABLE_64 \
129 | HTT_MSDU_EXT_DESC_FLAG_UDP_IPV6_CSUM_ENABLE_64 \
130 | HTT_MSDU_EXT_DESC_FLAG_TCP_IPV4_CSUM_ENABLE_64 \
131 | HTT_MSDU_EXT_DESC_FLAG_TCP_IPV6_CSUM_ENABLE_64)
132
133 enum htt_data_tx_desc_flags0 {
134 HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT = 1 << 0,
135 HTT_DATA_TX_DESC_FLAGS0_NO_AGGR = 1 << 1,
136 HTT_DATA_TX_DESC_FLAGS0_NO_ENCRYPT = 1 << 2,
137 HTT_DATA_TX_DESC_FLAGS0_NO_CLASSIFY = 1 << 3,
138 HTT_DATA_TX_DESC_FLAGS0_RSVD0 = 1 << 4
139 #define HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE_MASK 0xE0
140 #define HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE_LSB 5
141 };
142
143 enum htt_data_tx_desc_flags1 {
144 #define HTT_DATA_TX_DESC_FLAGS1_VDEV_ID_BITS 6
145 #define HTT_DATA_TX_DESC_FLAGS1_VDEV_ID_MASK 0x003F
146 #define HTT_DATA_TX_DESC_FLAGS1_VDEV_ID_LSB 0
147 #define HTT_DATA_TX_DESC_FLAGS1_EXT_TID_BITS 5
148 #define HTT_DATA_TX_DESC_FLAGS1_EXT_TID_MASK 0x07C0
149 #define HTT_DATA_TX_DESC_FLAGS1_EXT_TID_LSB 6
150 HTT_DATA_TX_DESC_FLAGS1_POSTPONED = 1 << 11,
151 HTT_DATA_TX_DESC_FLAGS1_MORE_IN_BATCH = 1 << 12,
152 HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD = 1 << 13,
153 HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD = 1 << 14,
154 HTT_DATA_TX_DESC_FLAGS1_TX_COMPLETE = 1 << 15
155 };
156
157 #define HTT_TX_CREDIT_DELTA_ABS_M 0xffff0000
158 #define HTT_TX_CREDIT_DELTA_ABS_S 16
159 #define HTT_TX_CREDIT_DELTA_ABS_GET(word) \
160 (((word) & HTT_TX_CREDIT_DELTA_ABS_M) >> HTT_TX_CREDIT_DELTA_ABS_S)
161
162 #define HTT_TX_CREDIT_SIGN_BIT_M 0x00000100
163 #define HTT_TX_CREDIT_SIGN_BIT_S 8
164 #define HTT_TX_CREDIT_SIGN_BIT_GET(word) \
165 (((word) & HTT_TX_CREDIT_SIGN_BIT_M) >> HTT_TX_CREDIT_SIGN_BIT_S)
166
167 enum htt_data_tx_ext_tid {
168 HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST = 16,
169 HTT_DATA_TX_EXT_TID_MGMT = 17,
170 HTT_DATA_TX_EXT_TID_INVALID = 31
171 };
172
173 #define HTT_INVALID_PEERID 0xFFFF
174
175 /*
176 * htt_data_tx_desc - used for data tx path
177 *
178 * Note: vdev_id irrelevant for pkt_type == raw and no_classify == 1.
179 * ext_tid: for qos-data frames (0-15), see %HTT_DATA_TX_EXT_TID_
180 * for special kinds of tids
181 * postponed: only for HL hosts. indicates if this is a resend
182 * (HL hosts manage queues on the host )
183 * more_in_batch: only for HL hosts. indicates if more packets are
184 * pending. this allows target to wait and aggregate
185 * freq: 0 means home channel of given vdev. intended for offchannel
186 */
187 struct htt_data_tx_desc {
188 u8 flags0; /* %HTT_DATA_TX_DESC_FLAGS0_ */
189 __le16 flags1; /* %HTT_DATA_TX_DESC_FLAGS1_ */
190 __le16 len;
191 __le16 id;
192 __le32 frags_paddr;
193 union {
194 __le32 peerid;
195 struct {
196 __le16 peerid;
197 __le16 freq;
198 } __packed offchan_tx;
199 } __packed;
200 u8 prefetch[0]; /* start of frame, for FW classification engine */
201 } __packed;
202
203 struct htt_data_tx_desc_64 {
204 u8 flags0; /* %HTT_DATA_TX_DESC_FLAGS0_ */
205 __le16 flags1; /* %HTT_DATA_TX_DESC_FLAGS1_ */
206 __le16 len;
207 __le16 id;
208 __le64 frags_paddr;
209 union {
210 __le32 peerid;
211 struct {
212 __le16 peerid;
213 __le16 freq;
214 } __packed offchan_tx;
215 } __packed;
216 u8 prefetch[0]; /* start of frame, for FW classification engine */
217 } __packed;
218
219 enum htt_rx_ring_flags {
220 HTT_RX_RING_FLAGS_MAC80211_HDR = 1 << 0,
221 HTT_RX_RING_FLAGS_MSDU_PAYLOAD = 1 << 1,
222 HTT_RX_RING_FLAGS_PPDU_START = 1 << 2,
223 HTT_RX_RING_FLAGS_PPDU_END = 1 << 3,
224 HTT_RX_RING_FLAGS_MPDU_START = 1 << 4,
225 HTT_RX_RING_FLAGS_MPDU_END = 1 << 5,
226 HTT_RX_RING_FLAGS_MSDU_START = 1 << 6,
227 HTT_RX_RING_FLAGS_MSDU_END = 1 << 7,
228 HTT_RX_RING_FLAGS_RX_ATTENTION = 1 << 8,
229 HTT_RX_RING_FLAGS_FRAG_INFO = 1 << 9,
230 HTT_RX_RING_FLAGS_UNICAST_RX = 1 << 10,
231 HTT_RX_RING_FLAGS_MULTICAST_RX = 1 << 11,
232 HTT_RX_RING_FLAGS_CTRL_RX = 1 << 12,
233 HTT_RX_RING_FLAGS_MGMT_RX = 1 << 13,
234 HTT_RX_RING_FLAGS_NULL_RX = 1 << 14,
235 HTT_RX_RING_FLAGS_PHY_DATA_RX = 1 << 15
236 };
237
238 #define HTT_RX_RING_SIZE_MIN 128
239 #define HTT_RX_RING_SIZE_MAX 2048
240 #define HTT_RX_RING_SIZE HTT_RX_RING_SIZE_MAX
241 #define HTT_RX_RING_FILL_LEVEL (((HTT_RX_RING_SIZE) / 2) - 1)
242 #define HTT_RX_RING_FILL_LEVEL_DUAL_MAC (HTT_RX_RING_SIZE - 1)
243
244 struct htt_rx_ring_rx_desc_offsets {
245 /* the following offsets are in 4-byte units */
246 __le16 mac80211_hdr_offset;
247 __le16 msdu_payload_offset;
248 __le16 ppdu_start_offset;
249 __le16 ppdu_end_offset;
250 __le16 mpdu_start_offset;
251 __le16 mpdu_end_offset;
252 __le16 msdu_start_offset;
253 __le16 msdu_end_offset;
254 __le16 rx_attention_offset;
255 __le16 frag_info_offset;
256 } __packed;
257
258 struct htt_rx_ring_setup_ring32 {
259 __le32 fw_idx_shadow_reg_paddr;
260 __le32 rx_ring_base_paddr;
261 __le16 rx_ring_len; /* in 4-byte words */
262 __le16 rx_ring_bufsize; /* rx skb size - in bytes */
263 __le16 flags; /* %HTT_RX_RING_FLAGS_ */
264 __le16 fw_idx_init_val;
265
266 struct htt_rx_ring_rx_desc_offsets offsets;
267 } __packed;
268
269 struct htt_rx_ring_setup_ring64 {
270 __le64 fw_idx_shadow_reg_paddr;
271 __le64 rx_ring_base_paddr;
272 __le16 rx_ring_len; /* in 4-byte words */
273 __le16 rx_ring_bufsize; /* rx skb size - in bytes */
274 __le16 flags; /* %HTT_RX_RING_FLAGS_ */
275 __le16 fw_idx_init_val;
276
277 struct htt_rx_ring_rx_desc_offsets offsets;
278 } __packed;
279
280 struct htt_rx_ring_setup_hdr {
281 u8 num_rings; /* supported values: 1, 2 */
282 __le16 rsvd0;
283 } __packed;
284
285 struct htt_rx_ring_setup_32 {
286 struct htt_rx_ring_setup_hdr hdr;
287 struct htt_rx_ring_setup_ring32 rings[];
288 } __packed;
289
290 struct htt_rx_ring_setup_64 {
291 struct htt_rx_ring_setup_hdr hdr;
292 struct htt_rx_ring_setup_ring64 rings[];
293 } __packed;
294
295 /*
296 * htt_stats_req - request target to send specified statistics
297 *
298 * @msg_type: hardcoded %HTT_H2T_MSG_TYPE_STATS_REQ
299 * @upload_types: see %htt_dbg_stats_type. this is 24bit field actually
300 * so make sure its little-endian.
301 * @reset_types: see %htt_dbg_stats_type. this is 24bit field actually
302 * so make sure its little-endian.
303 * @cfg_val: stat_type specific configuration
304 * @stat_type: see %htt_dbg_stats_type
305 * @cookie_lsb: used for confirmation message from target->host
306 * @cookie_msb: ditto as %cookie
307 */
308 struct htt_stats_req {
309 u8 upload_types[3];
310 u8 rsvd0;
311 u8 reset_types[3];
312 struct {
313 u8 mpdu_bytes;
314 u8 mpdu_num_msdus;
315 u8 msdu_bytes;
316 } __packed;
317 u8 stat_type;
318 __le32 cookie_lsb;
319 __le32 cookie_msb;
320 } __packed;
321
322 #define HTT_STATS_REQ_CFG_STAT_TYPE_INVALID 0xff
323 #define HTT_STATS_BIT_MASK GENMASK(16, 0)
324
325 /*
326 * htt_oob_sync_req - request out-of-band sync
327 *
328 * The HTT SYNC tells the target to suspend processing of subsequent
329 * HTT host-to-target messages until some other target agent locally
330 * informs the target HTT FW that the current sync counter is equal to
331 * or greater than (in a modulo sense) the sync counter specified in
332 * the SYNC message.
333 *
334 * This allows other host-target components to synchronize their operation
335 * with HTT, e.g. to ensure that tx frames don't get transmitted until a
336 * security key has been downloaded to and activated by the target.
337 * In the absence of any explicit synchronization counter value
338 * specification, the target HTT FW will use zero as the default current
339 * sync value.
340 *
341 * The HTT target FW will suspend its host->target message processing as long
342 * as 0 < (in-band sync counter - out-of-band sync counter) & 0xff < 128.
343 */
344 struct htt_oob_sync_req {
345 u8 sync_count;
346 __le16 rsvd0;
347 } __packed;
348
349 struct htt_aggr_conf {
350 u8 max_num_ampdu_subframes;
351 /* amsdu_subframes is limited by 0x1F mask */
352 u8 max_num_amsdu_subframes;
353 } __packed;
354
355 struct htt_aggr_conf_v2 {
356 u8 max_num_ampdu_subframes;
357 /* amsdu_subframes is limited by 0x1F mask */
358 u8 max_num_amsdu_subframes;
359 u8 reserved;
360 } __packed;
361
362 #define HTT_MGMT_FRM_HDR_DOWNLOAD_LEN 32
363 struct htt_mgmt_tx_desc_qca99x0 {
364 __le32 rate;
365 } __packed;
366
367 struct htt_mgmt_tx_desc {
368 u8 pad[sizeof(u32) - sizeof(struct htt_cmd_hdr)];
369 __le32 msdu_paddr;
370 __le32 desc_id;
371 __le32 len;
372 __le32 vdev_id;
373 u8 hdr[HTT_MGMT_FRM_HDR_DOWNLOAD_LEN];
374 union {
375 struct htt_mgmt_tx_desc_qca99x0 qca99x0;
376 } __packed;
377 } __packed;
378
379 enum htt_mgmt_tx_status {
380 HTT_MGMT_TX_STATUS_OK = 0,
381 HTT_MGMT_TX_STATUS_RETRY = 1,
382 HTT_MGMT_TX_STATUS_DROP = 2
383 };
384
385 /*=== target -> host messages ===============================================*/
386
387 enum htt_main_t2h_msg_type {
388 HTT_MAIN_T2H_MSG_TYPE_VERSION_CONF = 0x0,
389 HTT_MAIN_T2H_MSG_TYPE_RX_IND = 0x1,
390 HTT_MAIN_T2H_MSG_TYPE_RX_FLUSH = 0x2,
391 HTT_MAIN_T2H_MSG_TYPE_PEER_MAP = 0x3,
392 HTT_MAIN_T2H_MSG_TYPE_PEER_UNMAP = 0x4,
393 HTT_MAIN_T2H_MSG_TYPE_RX_ADDBA = 0x5,
394 HTT_MAIN_T2H_MSG_TYPE_RX_DELBA = 0x6,
395 HTT_MAIN_T2H_MSG_TYPE_TX_COMPL_IND = 0x7,
396 HTT_MAIN_T2H_MSG_TYPE_PKTLOG = 0x8,
397 HTT_MAIN_T2H_MSG_TYPE_STATS_CONF = 0x9,
398 HTT_MAIN_T2H_MSG_TYPE_RX_FRAG_IND = 0xa,
399 HTT_MAIN_T2H_MSG_TYPE_SEC_IND = 0xb,
400 HTT_MAIN_T2H_MSG_TYPE_TX_INSPECT_IND = 0xd,
401 HTT_MAIN_T2H_MSG_TYPE_MGMT_TX_COMPL_IND = 0xe,
402 HTT_MAIN_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND = 0xf,
403 HTT_MAIN_T2H_MSG_TYPE_RX_PN_IND = 0x10,
404 HTT_MAIN_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND = 0x11,
405 HTT_MAIN_T2H_MSG_TYPE_TEST,
406 /* keep this last */
407 HTT_MAIN_T2H_NUM_MSGS
408 };
409
410 enum htt_10x_t2h_msg_type {
411 HTT_10X_T2H_MSG_TYPE_VERSION_CONF = 0x0,
412 HTT_10X_T2H_MSG_TYPE_RX_IND = 0x1,
413 HTT_10X_T2H_MSG_TYPE_RX_FLUSH = 0x2,
414 HTT_10X_T2H_MSG_TYPE_PEER_MAP = 0x3,
415 HTT_10X_T2H_MSG_TYPE_PEER_UNMAP = 0x4,
416 HTT_10X_T2H_MSG_TYPE_RX_ADDBA = 0x5,
417 HTT_10X_T2H_MSG_TYPE_RX_DELBA = 0x6,
418 HTT_10X_T2H_MSG_TYPE_TX_COMPL_IND = 0x7,
419 HTT_10X_T2H_MSG_TYPE_PKTLOG = 0x8,
420 HTT_10X_T2H_MSG_TYPE_STATS_CONF = 0x9,
421 HTT_10X_T2H_MSG_TYPE_RX_FRAG_IND = 0xa,
422 HTT_10X_T2H_MSG_TYPE_SEC_IND = 0xb,
423 HTT_10X_T2H_MSG_TYPE_RC_UPDATE_IND = 0xc,
424 HTT_10X_T2H_MSG_TYPE_TX_INSPECT_IND = 0xd,
425 HTT_10X_T2H_MSG_TYPE_TEST = 0xe,
426 HTT_10X_T2H_MSG_TYPE_CHAN_CHANGE = 0xf,
427 HTT_10X_T2H_MSG_TYPE_AGGR_CONF = 0x11,
428 HTT_10X_T2H_MSG_TYPE_STATS_NOUPLOAD = 0x12,
429 HTT_10X_T2H_MSG_TYPE_MGMT_TX_COMPL_IND = 0x13,
430 /* keep this last */
431 HTT_10X_T2H_NUM_MSGS
432 };
433
434 enum htt_tlv_t2h_msg_type {
435 HTT_TLV_T2H_MSG_TYPE_VERSION_CONF = 0x0,
436 HTT_TLV_T2H_MSG_TYPE_RX_IND = 0x1,
437 HTT_TLV_T2H_MSG_TYPE_RX_FLUSH = 0x2,
438 HTT_TLV_T2H_MSG_TYPE_PEER_MAP = 0x3,
439 HTT_TLV_T2H_MSG_TYPE_PEER_UNMAP = 0x4,
440 HTT_TLV_T2H_MSG_TYPE_RX_ADDBA = 0x5,
441 HTT_TLV_T2H_MSG_TYPE_RX_DELBA = 0x6,
442 HTT_TLV_T2H_MSG_TYPE_TX_COMPL_IND = 0x7,
443 HTT_TLV_T2H_MSG_TYPE_PKTLOG = 0x8,
444 HTT_TLV_T2H_MSG_TYPE_STATS_CONF = 0x9,
445 HTT_TLV_T2H_MSG_TYPE_RX_FRAG_IND = 0xa,
446 HTT_TLV_T2H_MSG_TYPE_SEC_IND = 0xb,
447 HTT_TLV_T2H_MSG_TYPE_RC_UPDATE_IND = 0xc, /* deprecated */
448 HTT_TLV_T2H_MSG_TYPE_TX_INSPECT_IND = 0xd,
449 HTT_TLV_T2H_MSG_TYPE_MGMT_TX_COMPL_IND = 0xe,
450 HTT_TLV_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND = 0xf,
451 HTT_TLV_T2H_MSG_TYPE_RX_PN_IND = 0x10,
452 HTT_TLV_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND = 0x11,
453 HTT_TLV_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND = 0x12,
454 /* 0x13 reservd */
455 HTT_TLV_T2H_MSG_TYPE_WDI_IPA_OP_RESPONSE = 0x14,
456 HTT_TLV_T2H_MSG_TYPE_CHAN_CHANGE = 0x15,
457 HTT_TLV_T2H_MSG_TYPE_RX_OFLD_PKT_ERR = 0x16,
458 HTT_TLV_T2H_MSG_TYPE_TEST,
459 /* keep this last */
460 HTT_TLV_T2H_NUM_MSGS
461 };
462
463 enum htt_10_4_t2h_msg_type {
464 HTT_10_4_T2H_MSG_TYPE_VERSION_CONF = 0x0,
465 HTT_10_4_T2H_MSG_TYPE_RX_IND = 0x1,
466 HTT_10_4_T2H_MSG_TYPE_RX_FLUSH = 0x2,
467 HTT_10_4_T2H_MSG_TYPE_PEER_MAP = 0x3,
468 HTT_10_4_T2H_MSG_TYPE_PEER_UNMAP = 0x4,
469 HTT_10_4_T2H_MSG_TYPE_RX_ADDBA = 0x5,
470 HTT_10_4_T2H_MSG_TYPE_RX_DELBA = 0x6,
471 HTT_10_4_T2H_MSG_TYPE_TX_COMPL_IND = 0x7,
472 HTT_10_4_T2H_MSG_TYPE_PKTLOG = 0x8,
473 HTT_10_4_T2H_MSG_TYPE_STATS_CONF = 0x9,
474 HTT_10_4_T2H_MSG_TYPE_RX_FRAG_IND = 0xa,
475 HTT_10_4_T2H_MSG_TYPE_SEC_IND = 0xb,
476 HTT_10_4_T2H_MSG_TYPE_RC_UPDATE_IND = 0xc,
477 HTT_10_4_T2H_MSG_TYPE_TX_INSPECT_IND = 0xd,
478 HTT_10_4_T2H_MSG_TYPE_MGMT_TX_COMPL_IND = 0xe,
479 HTT_10_4_T2H_MSG_TYPE_CHAN_CHANGE = 0xf,
480 HTT_10_4_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND = 0x10,
481 HTT_10_4_T2H_MSG_TYPE_RX_PN_IND = 0x11,
482 HTT_10_4_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND = 0x12,
483 HTT_10_4_T2H_MSG_TYPE_TEST = 0x13,
484 HTT_10_4_T2H_MSG_TYPE_EN_STATS = 0x14,
485 HTT_10_4_T2H_MSG_TYPE_AGGR_CONF = 0x15,
486 HTT_10_4_T2H_MSG_TYPE_TX_FETCH_IND = 0x16,
487 HTT_10_4_T2H_MSG_TYPE_TX_FETCH_CONFIRM = 0x17,
488 HTT_10_4_T2H_MSG_TYPE_STATS_NOUPLOAD = 0x18,
489 /* 0x19 to 0x2f are reserved */
490 HTT_10_4_T2H_MSG_TYPE_TX_MODE_SWITCH_IND = 0x30,
491 HTT_10_4_T2H_MSG_TYPE_PEER_STATS = 0x31,
492 /* keep this last */
493 HTT_10_4_T2H_NUM_MSGS
494 };
495
496 enum htt_t2h_msg_type {
497 HTT_T2H_MSG_TYPE_VERSION_CONF,
498 HTT_T2H_MSG_TYPE_RX_IND,
499 HTT_T2H_MSG_TYPE_RX_FLUSH,
500 HTT_T2H_MSG_TYPE_PEER_MAP,
501 HTT_T2H_MSG_TYPE_PEER_UNMAP,
502 HTT_T2H_MSG_TYPE_RX_ADDBA,
503 HTT_T2H_MSG_TYPE_RX_DELBA,
504 HTT_T2H_MSG_TYPE_TX_COMPL_IND,
505 HTT_T2H_MSG_TYPE_PKTLOG,
506 HTT_T2H_MSG_TYPE_STATS_CONF,
507 HTT_T2H_MSG_TYPE_RX_FRAG_IND,
508 HTT_T2H_MSG_TYPE_SEC_IND,
509 HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
510 HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
511 HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
512 HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
513 HTT_T2H_MSG_TYPE_RX_PN_IND,
514 HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
515 HTT_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND,
516 HTT_T2H_MSG_TYPE_WDI_IPA_OP_RESPONSE,
517 HTT_T2H_MSG_TYPE_CHAN_CHANGE,
518 HTT_T2H_MSG_TYPE_RX_OFLD_PKT_ERR,
519 HTT_T2H_MSG_TYPE_AGGR_CONF,
520 HTT_T2H_MSG_TYPE_STATS_NOUPLOAD,
521 HTT_T2H_MSG_TYPE_TEST,
522 HTT_T2H_MSG_TYPE_EN_STATS,
523 HTT_T2H_MSG_TYPE_TX_FETCH_IND,
524 HTT_T2H_MSG_TYPE_TX_FETCH_CONFIRM,
525 HTT_T2H_MSG_TYPE_TX_MODE_SWITCH_IND,
526 HTT_T2H_MSG_TYPE_PEER_STATS,
527 /* keep this last */
528 HTT_T2H_NUM_MSGS
529 };
530
531 /*
532 * htt_resp_hdr - header for target-to-host messages
533 *
534 * msg_type: see htt_t2h_msg_type
535 */
536 struct htt_resp_hdr {
537 u8 msg_type;
538 } __packed;
539
540 #define HTT_RESP_HDR_MSG_TYPE_OFFSET 0
541 #define HTT_RESP_HDR_MSG_TYPE_MASK 0xff
542 #define HTT_RESP_HDR_MSG_TYPE_LSB 0
543
544 /* htt_ver_resp - response sent for htt_ver_req */
545 struct htt_ver_resp {
546 u8 minor;
547 u8 major;
548 u8 rsvd0;
549 } __packed;
550
551 #define HTT_MGMT_TX_CMPL_FLAG_ACK_RSSI BIT(0)
552
553 #define HTT_MGMT_TX_CMPL_INFO_ACK_RSSI_MASK GENMASK(7, 0)
554
555 struct htt_mgmt_tx_completion {
556 u8 rsvd0;
557 u8 rsvd1;
558 u8 flags;
559 __le32 desc_id;
560 __le32 status;
561 __le32 ppdu_id;
562 __le32 info;
563 } __packed;
564
565 #define HTT_RX_INDICATION_INFO0_EXT_TID_MASK (0x1F)
566 #define HTT_RX_INDICATION_INFO0_EXT_TID_LSB (0)
567 #define HTT_RX_INDICATION_INFO0_FLUSH_VALID (1 << 5)
568 #define HTT_RX_INDICATION_INFO0_RELEASE_VALID (1 << 6)
569 #define HTT_RX_INDICATION_INFO0_PPDU_DURATION BIT(7)
570
571 #define HTT_RX_INDICATION_INFO1_FLUSH_START_SEQNO_MASK 0x0000003F
572 #define HTT_RX_INDICATION_INFO1_FLUSH_START_SEQNO_LSB 0
573 #define HTT_RX_INDICATION_INFO1_FLUSH_END_SEQNO_MASK 0x00000FC0
574 #define HTT_RX_INDICATION_INFO1_FLUSH_END_SEQNO_LSB 6
575 #define HTT_RX_INDICATION_INFO1_RELEASE_START_SEQNO_MASK 0x0003F000
576 #define HTT_RX_INDICATION_INFO1_RELEASE_START_SEQNO_LSB 12
577 #define HTT_RX_INDICATION_INFO1_RELEASE_END_SEQNO_MASK 0x00FC0000
578 #define HTT_RX_INDICATION_INFO1_RELEASE_END_SEQNO_LSB 18
579 #define HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES_MASK 0xFF000000
580 #define HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES_LSB 24
581
582 #define HTT_TX_CMPL_FLAG_DATA_RSSI BIT(0)
583 #define HTT_TX_CMPL_FLAG_PPID_PRESENT BIT(1)
584 #define HTT_TX_CMPL_FLAG_PA_PRESENT BIT(2)
585 #define HTT_TX_CMPL_FLAG_PPDU_DURATION_PRESENT BIT(3)
586
587 #define HTT_TX_DATA_RSSI_ENABLE_WCN3990 BIT(3)
588 #define HTT_TX_DATA_APPEND_RETRIES BIT(0)
589 #define HTT_TX_DATA_APPEND_TIMESTAMP BIT(1)
590
591 struct htt_rx_indication_hdr {
592 u8 info0; /* %HTT_RX_INDICATION_INFO0_ */
593 __le16 peer_id;
594 __le32 info1; /* %HTT_RX_INDICATION_INFO1_ */
595 } __packed;
596
597 #define HTT_RX_INDICATION_INFO0_PHY_ERR_VALID (1 << 0)
598 #define HTT_RX_INDICATION_INFO0_LEGACY_RATE_MASK (0x1E)
599 #define HTT_RX_INDICATION_INFO0_LEGACY_RATE_LSB (1)
600 #define HTT_RX_INDICATION_INFO0_LEGACY_RATE_CCK (1 << 5)
601 #define HTT_RX_INDICATION_INFO0_END_VALID (1 << 6)
602 #define HTT_RX_INDICATION_INFO0_START_VALID (1 << 7)
603
604 #define HTT_RX_INDICATION_INFO1_VHT_SIG_A1_MASK 0x00FFFFFF
605 #define HTT_RX_INDICATION_INFO1_VHT_SIG_A1_LSB 0
606 #define HTT_RX_INDICATION_INFO1_PREAMBLE_TYPE_MASK 0xFF000000
607 #define HTT_RX_INDICATION_INFO1_PREAMBLE_TYPE_LSB 24
608
609 #define HTT_RX_INDICATION_INFO2_VHT_SIG_A1_MASK 0x00FFFFFF
610 #define HTT_RX_INDICATION_INFO2_VHT_SIG_A1_LSB 0
611 #define HTT_RX_INDICATION_INFO2_SERVICE_MASK 0xFF000000
612 #define HTT_RX_INDICATION_INFO2_SERVICE_LSB 24
613
614 enum htt_rx_legacy_rate {
615 HTT_RX_OFDM_48 = 0,
616 HTT_RX_OFDM_24 = 1,
617 HTT_RX_OFDM_12,
618 HTT_RX_OFDM_6,
619 HTT_RX_OFDM_54,
620 HTT_RX_OFDM_36,
621 HTT_RX_OFDM_18,
622 HTT_RX_OFDM_9,
623
624 /* long preamble */
625 HTT_RX_CCK_11_LP = 0,
626 HTT_RX_CCK_5_5_LP = 1,
627 HTT_RX_CCK_2_LP,
628 HTT_RX_CCK_1_LP,
629 /* short preamble */
630 HTT_RX_CCK_11_SP,
631 HTT_RX_CCK_5_5_SP,
632 HTT_RX_CCK_2_SP
633 };
634
635 enum htt_rx_legacy_rate_type {
636 HTT_RX_LEGACY_RATE_OFDM = 0,
637 HTT_RX_LEGACY_RATE_CCK
638 };
639
640 enum htt_rx_preamble_type {
641 HTT_RX_LEGACY = 0x4,
642 HTT_RX_HT = 0x8,
643 HTT_RX_HT_WITH_TXBF = 0x9,
644 HTT_RX_VHT = 0xC,
645 HTT_RX_VHT_WITH_TXBF = 0xD,
646 };
647
648 /*
649 * Fields: phy_err_valid, phy_err_code, tsf,
650 * usec_timestamp, sub_usec_timestamp
651 * ..are valid only if end_valid == 1.
652 *
653 * Fields: rssi_chains, legacy_rate_type,
654 * legacy_rate_cck, preamble_type, service,
655 * vht_sig_*
656 * ..are valid only if start_valid == 1;
657 */
658 struct htt_rx_indication_ppdu {
659 u8 combined_rssi;
660 u8 sub_usec_timestamp;
661 u8 phy_err_code;
662 u8 info0; /* HTT_RX_INDICATION_INFO0_ */
663 struct {
664 u8 pri20_db;
665 u8 ext20_db;
666 u8 ext40_db;
667 u8 ext80_db;
668 } __packed rssi_chains[4];
669 __le32 tsf;
670 __le32 usec_timestamp;
671 __le32 info1; /* HTT_RX_INDICATION_INFO1_ */
672 __le32 info2; /* HTT_RX_INDICATION_INFO2_ */
673 } __packed;
674
675 enum htt_rx_mpdu_status {
676 HTT_RX_IND_MPDU_STATUS_UNKNOWN = 0x0,
677 HTT_RX_IND_MPDU_STATUS_OK,
678 HTT_RX_IND_MPDU_STATUS_ERR_FCS,
679 HTT_RX_IND_MPDU_STATUS_ERR_DUP,
680 HTT_RX_IND_MPDU_STATUS_ERR_REPLAY,
681 HTT_RX_IND_MPDU_STATUS_ERR_INV_PEER,
682 /* only accept EAPOL frames */
683 HTT_RX_IND_MPDU_STATUS_UNAUTH_PEER,
684 HTT_RX_IND_MPDU_STATUS_OUT_OF_SYNC,
685 /* Non-data in promiscuous mode */
686 HTT_RX_IND_MPDU_STATUS_MGMT_CTRL,
687 HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR,
688 HTT_RX_IND_MPDU_STATUS_DECRYPT_ERR,
689 HTT_RX_IND_MPDU_STATUS_MPDU_LENGTH_ERR,
690 HTT_RX_IND_MPDU_STATUS_ENCRYPT_REQUIRED_ERR,
691 HTT_RX_IND_MPDU_STATUS_PRIVACY_ERR,
692
693 /*
694 * MISC: discard for unspecified reasons.
695 * Leave this enum value last.
696 */
697 HTT_RX_IND_MPDU_STATUS_ERR_MISC = 0xFF
698 };
699
700 struct htt_rx_indication_mpdu_range {
701 u8 mpdu_count;
702 u8 mpdu_range_status; /* %htt_rx_mpdu_status */
703 u8 pad0;
704 u8 pad1;
705 } __packed;
706
707 struct htt_rx_indication_prefix {
708 __le16 fw_rx_desc_bytes;
709 u8 pad0;
710 u8 pad1;
711 } __packed;
712
713 struct htt_rx_indication {
714 struct htt_rx_indication_hdr hdr;
715 struct htt_rx_indication_ppdu ppdu;
716 struct htt_rx_indication_prefix prefix;
717
718 /*
719 * the following fields are both dynamically sized, so
720 * take care addressing them
721 */
722
723 /* the size of this is %fw_rx_desc_bytes */
724 struct fw_rx_desc_base fw_desc;
725
726 /*
727 * %mpdu_ranges starts after &%prefix + roundup(%fw_rx_desc_bytes, 4)
728 * and has %num_mpdu_ranges elements.
729 */
730 struct htt_rx_indication_mpdu_range mpdu_ranges[];
731 } __packed;
732
733 /* High latency version of the RX indication */
734 struct htt_rx_indication_hl {
735 struct htt_rx_indication_hdr hdr;
736 struct htt_rx_indication_ppdu ppdu;
737 struct htt_rx_indication_prefix prefix;
738 struct fw_rx_desc_hl fw_desc;
739 struct htt_rx_indication_mpdu_range mpdu_ranges[];
740 } __packed;
741
742 struct htt_hl_rx_desc {
743 __le32 info;
744 __le32 pn_31_0;
745 union {
746 struct {
747 __le16 pn_47_32;
748 __le16 pn_63_48;
749 } pn16;
750 __le32 pn_63_32;
751 } u0;
752 __le32 pn_95_64;
753 __le32 pn_127_96;
754 } __packed;
755
756 static inline struct htt_rx_indication_mpdu_range *
htt_rx_ind_get_mpdu_ranges(struct htt_rx_indication * rx_ind)757 htt_rx_ind_get_mpdu_ranges(struct htt_rx_indication *rx_ind)
758 {
759 void *ptr = rx_ind;
760
761 ptr += sizeof(rx_ind->hdr)
762 + sizeof(rx_ind->ppdu)
763 + sizeof(rx_ind->prefix)
764 + roundup(__le16_to_cpu(rx_ind->prefix.fw_rx_desc_bytes), 4);
765 return ptr;
766 }
767
768 static inline struct htt_rx_indication_mpdu_range *
htt_rx_ind_get_mpdu_ranges_hl(struct htt_rx_indication_hl * rx_ind)769 htt_rx_ind_get_mpdu_ranges_hl(struct htt_rx_indication_hl *rx_ind)
770 {
771 void *ptr = rx_ind;
772
773 ptr += sizeof(rx_ind->hdr)
774 + sizeof(rx_ind->ppdu)
775 + sizeof(rx_ind->prefix)
776 + sizeof(rx_ind->fw_desc);
777 return ptr;
778 }
779
780 enum htt_rx_flush_mpdu_status {
781 HTT_RX_FLUSH_MPDU_DISCARD = 0,
782 HTT_RX_FLUSH_MPDU_REORDER = 1,
783 };
784
785 /*
786 * htt_rx_flush - discard or reorder given range of mpdus
787 *
788 * Note: host must check if all sequence numbers between
789 * [seq_num_start, seq_num_end-1] are valid.
790 */
791 struct htt_rx_flush {
792 __le16 peer_id;
793 u8 tid;
794 u8 rsvd0;
795 u8 mpdu_status; /* %htt_rx_flush_mpdu_status */
796 u8 seq_num_start; /* it is 6 LSBs of 802.11 seq no */
797 u8 seq_num_end; /* it is 6 LSBs of 802.11 seq no */
798 };
799
800 struct htt_rx_peer_map {
801 u8 vdev_id;
802 __le16 peer_id;
803 u8 addr[6];
804 u8 rsvd0;
805 u8 rsvd1;
806 } __packed;
807
808 struct htt_rx_peer_unmap {
809 u8 rsvd0;
810 __le16 peer_id;
811 } __packed;
812
813 enum htt_txrx_sec_cast_type {
814 HTT_TXRX_SEC_MCAST = 0,
815 HTT_TXRX_SEC_UCAST
816 };
817
818 enum htt_rx_pn_check_type {
819 HTT_RX_NON_PN_CHECK = 0,
820 HTT_RX_PN_CHECK
821 };
822
823 enum htt_rx_tkip_demic_type {
824 HTT_RX_NON_TKIP_MIC = 0,
825 HTT_RX_TKIP_MIC
826 };
827
828 enum htt_security_types {
829 HTT_SECURITY_NONE,
830 HTT_SECURITY_WEP128,
831 HTT_SECURITY_WEP104,
832 HTT_SECURITY_WEP40,
833 HTT_SECURITY_TKIP,
834 HTT_SECURITY_TKIP_NOMIC,
835 HTT_SECURITY_AES_CCMP,
836 HTT_SECURITY_WAPI,
837
838 HTT_NUM_SECURITY_TYPES /* keep this last! */
839 };
840
841 #define ATH10K_HTT_TXRX_PEER_SECURITY_MAX 2
842 #define ATH10K_TXRX_NUM_EXT_TIDS 19
843 #define ATH10K_TXRX_NON_QOS_TID 16
844
845 enum htt_security_flags {
846 #define HTT_SECURITY_TYPE_MASK 0x7F
847 #define HTT_SECURITY_TYPE_LSB 0
848 HTT_SECURITY_IS_UNICAST = 1 << 7
849 };
850
851 struct htt_security_indication {
852 union {
853 /* dont use bitfields; undefined behaviour */
854 u8 flags; /* %htt_security_flags */
855 struct {
856 u8 security_type:7, /* %htt_security_types */
857 is_unicast:1;
858 } __packed;
859 } __packed;
860 __le16 peer_id;
861 u8 michael_key[8];
862 u8 wapi_rsc[16];
863 } __packed;
864
865 #define HTT_RX_BA_INFO0_TID_MASK 0x000F
866 #define HTT_RX_BA_INFO0_TID_LSB 0
867 #define HTT_RX_BA_INFO0_PEER_ID_MASK 0xFFF0
868 #define HTT_RX_BA_INFO0_PEER_ID_LSB 4
869
870 struct htt_rx_addba {
871 u8 window_size;
872 __le16 info0; /* %HTT_RX_BA_INFO0_ */
873 } __packed;
874
875 struct htt_rx_delba {
876 u8 rsvd0;
877 __le16 info0; /* %HTT_RX_BA_INFO0_ */
878 } __packed;
879
880 enum htt_data_tx_status {
881 HTT_DATA_TX_STATUS_OK = 0,
882 HTT_DATA_TX_STATUS_DISCARD = 1,
883 HTT_DATA_TX_STATUS_NO_ACK = 2,
884 HTT_DATA_TX_STATUS_POSTPONE = 3 /* HL only */
885 };
886
887 enum htt_data_tx_flags {
888 #define HTT_DATA_TX_STATUS_MASK 0x07
889 #define HTT_DATA_TX_STATUS_LSB 0
890 #define HTT_DATA_TX_TID_MASK 0x78
891 #define HTT_DATA_TX_TID_LSB 3
892 HTT_DATA_TX_TID_INVALID = 1 << 7
893 };
894
895 #define HTT_TX_COMPL_INV_MSDU_ID 0xFFFF
896
897 struct htt_append_retries {
898 __le16 msdu_id;
899 u8 tx_retries;
900 u8 flag;
901 } __packed;
902
903 struct htt_data_tx_completion_ext {
904 struct htt_append_retries a_retries;
905 __le32 t_stamp;
906 __le16 msdus_rssi[];
907 } __packed;
908
909 /*
910 * @brief target -> host TX completion indication message definition
911 *
912 * @details
913 * The following diagram shows the format of the TX completion indication sent
914 * from the target to the host
915 *
916 * |31 28|27|26|25|24|23 16| 15 |14 11|10 8|7 0|
917 * |-------------------------------------------------------------|
918 * header: |rsvd |A2|TP|A1|A0| num | t_i| tid |status| msg_type |
919 * |-------------------------------------------------------------|
920 * payload: | MSDU1 ID | MSDU0 ID |
921 * |-------------------------------------------------------------|
922 * : MSDU3 ID : MSDU2 ID :
923 * |-------------------------------------------------------------|
924 * | struct htt_tx_compl_ind_append_retries |
925 * |- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -|
926 * | struct htt_tx_compl_ind_append_tx_tstamp |
927 * |- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -|
928 * | MSDU1 ACK RSSI | MSDU0 ACK RSSI |
929 * |-------------------------------------------------------------|
930 * : MSDU3 ACK RSSI : MSDU2 ACK RSSI :
931 * |- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -|
932 * -msg_type
933 * Bits 7:0
934 * Purpose: identifies this as HTT TX completion indication
935 * -status
936 * Bits 10:8
937 * Purpose: the TX completion status of payload fragmentations descriptors
938 * Value: could be HTT_TX_COMPL_IND_STAT_OK or HTT_TX_COMPL_IND_STAT_DISCARD
939 * -tid
940 * Bits 14:11
941 * Purpose: the tid associated with those fragmentation descriptors. It is
942 * valid or not, depending on the tid_invalid bit.
943 * Value: 0 to 15
944 * -tid_invalid
945 * Bits 15:15
946 * Purpose: this bit indicates whether the tid field is valid or not
947 * Value: 0 indicates valid, 1 indicates invalid
948 * -num
949 * Bits 23:16
950 * Purpose: the number of payload in this indication
951 * Value: 1 to 255
952 * -A0 = append
953 * Bits 24:24
954 * Purpose: append the struct htt_tx_compl_ind_append_retries which contains
955 * the number of tx retries for one MSDU at the end of this message
956 * Value: 0 indicates no appending, 1 indicates appending
957 * -A1 = append1
958 * Bits 25:25
959 * Purpose: Append the struct htt_tx_compl_ind_append_tx_tstamp which
960 * contains the timestamp info for each TX msdu id in payload.
961 * Value: 0 indicates no appending, 1 indicates appending
962 * -TP = MSDU tx power presence
963 * Bits 26:26
964 * Purpose: Indicate whether the TX_COMPL_IND includes a tx power report
965 * for each MSDU referenced by the TX_COMPL_IND message.
966 * The order of the per-MSDU tx power reports matches the order
967 * of the MSDU IDs.
968 * Value: 0 indicates not appending, 1 indicates appending
969 * -A2 = append2
970 * Bits 27:27
971 * Purpose: Indicate whether data ACK RSSI is appended for each MSDU in
972 * TX_COMP_IND message. The order of the per-MSDU ACK RSSI report
973 * matches the order of the MSDU IDs.
974 * The ACK RSSI values are valid when status is COMPLETE_OK (and
975 * this append2 bit is set).
976 * Value: 0 indicates not appending, 1 indicates appending
977 */
978
979 struct htt_data_tx_completion {
980 union {
981 u8 flags;
982 struct {
983 u8 status:3,
984 tid:4,
985 tid_invalid:1;
986 } __packed;
987 } __packed;
988 u8 num_msdus;
989 u8 flags2; /* HTT_TX_CMPL_FLAG_DATA_RSSI */
990 __le16 msdus[]; /* variable length based on %num_msdus */
991 } __packed;
992
993 #define HTT_TX_PPDU_DUR_INFO0_PEER_ID_MASK GENMASK(15, 0)
994 #define HTT_TX_PPDU_DUR_INFO0_TID_MASK GENMASK(20, 16)
995
996 struct htt_data_tx_ppdu_dur {
997 __le32 info0; /* HTT_TX_PPDU_DUR_INFO0_ */
998 __le32 tx_duration; /* in usecs */
999 } __packed;
1000
1001 #define HTT_TX_COMPL_PPDU_DUR_INFO0_NUM_ENTRIES_MASK GENMASK(7, 0)
1002
1003 struct htt_data_tx_compl_ppdu_dur {
1004 __le32 info0; /* HTT_TX_COMPL_PPDU_DUR_INFO0_ */
1005 struct htt_data_tx_ppdu_dur ppdu_dur[];
1006 } __packed;
1007
1008 struct htt_tx_compl_ind_base {
1009 u32 hdr;
1010 u16 payload[1/*or more*/];
1011 } __packed;
1012
1013 struct htt_rc_tx_done_params {
1014 u32 rate_code;
1015 u32 rate_code_flags;
1016 u32 flags;
1017 u32 num_enqued; /* 1 for non-AMPDU */
1018 u32 num_retries;
1019 u32 num_failed; /* for AMPDU */
1020 u32 ack_rssi;
1021 u32 time_stamp;
1022 u32 is_probe;
1023 };
1024
1025 struct htt_rc_update {
1026 u8 vdev_id;
1027 __le16 peer_id;
1028 u8 addr[6];
1029 u8 num_elems;
1030 u8 rsvd0;
1031 struct htt_rc_tx_done_params params[]; /* variable length %num_elems */
1032 } __packed;
1033
1034 /* see htt_rx_indication for similar fields and descriptions */
1035 struct htt_rx_fragment_indication {
1036 union {
1037 u8 info0; /* %HTT_RX_FRAG_IND_INFO0_ */
1038 struct {
1039 u8 ext_tid:5,
1040 flush_valid:1;
1041 } __packed;
1042 } __packed;
1043 __le16 peer_id;
1044 __le32 info1; /* %HTT_RX_FRAG_IND_INFO1_ */
1045 __le16 fw_rx_desc_bytes;
1046 __le16 rsvd0;
1047
1048 u8 fw_msdu_rx_desc[];
1049 } __packed;
1050
1051 #define ATH10K_IEEE80211_EXTIV BIT(5)
1052 #define ATH10K_IEEE80211_TKIP_MICLEN 8 /* trailing MIC */
1053
1054 #define HTT_RX_FRAG_IND_INFO0_HEADER_LEN 16
1055
1056 #define HTT_RX_FRAG_IND_INFO0_EXT_TID_MASK 0x1F
1057 #define HTT_RX_FRAG_IND_INFO0_EXT_TID_LSB 0
1058 #define HTT_RX_FRAG_IND_INFO0_FLUSH_VALID_MASK 0x20
1059 #define HTT_RX_FRAG_IND_INFO0_FLUSH_VALID_LSB 5
1060
1061 #define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_START_MASK 0x0000003F
1062 #define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_START_LSB 0
1063 #define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_END_MASK 0x00000FC0
1064 #define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_END_LSB 6
1065
1066 struct htt_rx_pn_ind {
1067 __le16 peer_id;
1068 u8 tid;
1069 u8 seqno_start;
1070 u8 seqno_end;
1071 u8 pn_ie_count;
1072 u8 reserved;
1073 u8 pn_ies[];
1074 } __packed;
1075
1076 struct htt_rx_offload_msdu {
1077 __le16 msdu_len;
1078 __le16 peer_id;
1079 u8 vdev_id;
1080 u8 tid;
1081 u8 fw_desc;
1082 u8 payload[];
1083 } __packed;
1084
1085 struct htt_rx_offload_ind {
1086 u8 reserved;
1087 __le16 msdu_count;
1088 } __packed;
1089
1090 struct htt_rx_in_ord_msdu_desc {
1091 __le32 msdu_paddr;
1092 __le16 msdu_len;
1093 u8 fw_desc;
1094 u8 reserved;
1095 } __packed;
1096
1097 struct htt_rx_in_ord_msdu_desc_ext {
1098 __le64 msdu_paddr;
1099 __le16 msdu_len;
1100 u8 fw_desc;
1101 u8 reserved;
1102 } __packed;
1103
1104 struct htt_rx_in_ord_ind {
1105 u8 info;
1106 __le16 peer_id;
1107 u8 vdev_id;
1108 u8 reserved;
1109 __le16 msdu_count;
1110 union {
1111 DECLARE_FLEX_ARRAY(struct htt_rx_in_ord_msdu_desc,
1112 msdu_descs32);
1113 DECLARE_FLEX_ARRAY(struct htt_rx_in_ord_msdu_desc_ext,
1114 msdu_descs64);
1115 } __packed;
1116 } __packed;
1117
1118 #define HTT_RX_IN_ORD_IND_INFO_TID_MASK 0x0000001f
1119 #define HTT_RX_IN_ORD_IND_INFO_TID_LSB 0
1120 #define HTT_RX_IN_ORD_IND_INFO_OFFLOAD_MASK 0x00000020
1121 #define HTT_RX_IN_ORD_IND_INFO_OFFLOAD_LSB 5
1122 #define HTT_RX_IN_ORD_IND_INFO_FRAG_MASK 0x00000040
1123 #define HTT_RX_IN_ORD_IND_INFO_FRAG_LSB 6
1124
1125 /*
1126 * target -> host test message definition
1127 *
1128 * The following field definitions describe the format of the test
1129 * message sent from the target to the host.
1130 * The message consists of a 4-octet header, followed by a variable
1131 * number of 32-bit integer values, followed by a variable number
1132 * of 8-bit character values.
1133 *
1134 * |31 16|15 8|7 0|
1135 * |-----------------------------------------------------------|
1136 * | num chars | num ints | msg type |
1137 * |-----------------------------------------------------------|
1138 * | int 0 |
1139 * |-----------------------------------------------------------|
1140 * | int 1 |
1141 * |-----------------------------------------------------------|
1142 * | ... |
1143 * |-----------------------------------------------------------|
1144 * | char 3 | char 2 | char 1 | char 0 |
1145 * |-----------------------------------------------------------|
1146 * | | | ... | char 4 |
1147 * |-----------------------------------------------------------|
1148 * - MSG_TYPE
1149 * Bits 7:0
1150 * Purpose: identifies this as a test message
1151 * Value: HTT_MSG_TYPE_TEST
1152 * - NUM_INTS
1153 * Bits 15:8
1154 * Purpose: indicate how many 32-bit integers follow the message header
1155 * - NUM_CHARS
1156 * Bits 31:16
1157 * Purpose: indicate how many 8-bit characters follow the series of integers
1158 */
1159 struct htt_rx_test {
1160 u8 num_ints;
1161 __le16 num_chars;
1162
1163 /* payload consists of 2 lists:
1164 * a) num_ints * sizeof(__le32)
1165 * b) num_chars * sizeof(u8) aligned to 4bytes
1166 */
1167 u8 payload[];
1168 } __packed;
1169
htt_rx_test_get_ints(struct htt_rx_test * rx_test)1170 static inline __le32 *htt_rx_test_get_ints(struct htt_rx_test *rx_test)
1171 {
1172 return (__le32 *)rx_test->payload;
1173 }
1174
htt_rx_test_get_chars(struct htt_rx_test * rx_test)1175 static inline u8 *htt_rx_test_get_chars(struct htt_rx_test *rx_test)
1176 {
1177 return rx_test->payload + (rx_test->num_ints * sizeof(__le32));
1178 }
1179
1180 /*
1181 * target -> host packet log message
1182 *
1183 * The following field definitions describe the format of the packet log
1184 * message sent from the target to the host.
1185 * The message consists of a 4-octet header,followed by a variable number
1186 * of 32-bit character values.
1187 *
1188 * |31 24|23 16|15 8|7 0|
1189 * |-----------------------------------------------------------|
1190 * | | | | msg type |
1191 * |-----------------------------------------------------------|
1192 * | payload |
1193 * |-----------------------------------------------------------|
1194 * - MSG_TYPE
1195 * Bits 7:0
1196 * Purpose: identifies this as a test message
1197 * Value: HTT_MSG_TYPE_PACKETLOG
1198 */
1199 struct htt_pktlog_msg {
1200 u8 pad[3];
1201 u8 payload[];
1202 } __packed;
1203
1204 struct htt_dbg_stats_rx_reorder_stats {
1205 /* Non QoS MPDUs received */
1206 __le32 deliver_non_qos;
1207
1208 /* MPDUs received in-order */
1209 __le32 deliver_in_order;
1210
1211 /* Flush due to reorder timer expired */
1212 __le32 deliver_flush_timeout;
1213
1214 /* Flush due to move out of window */
1215 __le32 deliver_flush_oow;
1216
1217 /* Flush due to DELBA */
1218 __le32 deliver_flush_delba;
1219
1220 /* MPDUs dropped due to FCS error */
1221 __le32 fcs_error;
1222
1223 /* MPDUs dropped due to monitor mode non-data packet */
1224 __le32 mgmt_ctrl;
1225
1226 /* MPDUs dropped due to invalid peer */
1227 __le32 invalid_peer;
1228
1229 /* MPDUs dropped due to duplication (non aggregation) */
1230 __le32 dup_non_aggr;
1231
1232 /* MPDUs dropped due to processed before */
1233 __le32 dup_past;
1234
1235 /* MPDUs dropped due to duplicate in reorder queue */
1236 __le32 dup_in_reorder;
1237
1238 /* Reorder timeout happened */
1239 __le32 reorder_timeout;
1240
1241 /* invalid bar ssn */
1242 __le32 invalid_bar_ssn;
1243
1244 /* reorder reset due to bar ssn */
1245 __le32 ssn_reset;
1246 };
1247
1248 struct htt_dbg_stats_wal_tx_stats {
1249 /* Num HTT cookies queued to dispatch list */
1250 __le32 comp_queued;
1251
1252 /* Num HTT cookies dispatched */
1253 __le32 comp_delivered;
1254
1255 /* Num MSDU queued to WAL */
1256 __le32 msdu_enqued;
1257
1258 /* Num MPDU queue to WAL */
1259 __le32 mpdu_enqued;
1260
1261 /* Num MSDUs dropped by WMM limit */
1262 __le32 wmm_drop;
1263
1264 /* Num Local frames queued */
1265 __le32 local_enqued;
1266
1267 /* Num Local frames done */
1268 __le32 local_freed;
1269
1270 /* Num queued to HW */
1271 __le32 hw_queued;
1272
1273 /* Num PPDU reaped from HW */
1274 __le32 hw_reaped;
1275
1276 /* Num underruns */
1277 __le32 underrun;
1278
1279 /* Num PPDUs cleaned up in TX abort */
1280 __le32 tx_abort;
1281
1282 /* Num MPDUs requeued by SW */
1283 __le32 mpdus_requeued;
1284
1285 /* excessive retries */
1286 __le32 tx_ko;
1287
1288 /* data hw rate code */
1289 __le32 data_rc;
1290
1291 /* Scheduler self triggers */
1292 __le32 self_triggers;
1293
1294 /* frames dropped due to excessive sw retries */
1295 __le32 sw_retry_failure;
1296
1297 /* illegal rate phy errors */
1298 __le32 illgl_rate_phy_err;
1299
1300 /* wal pdev continuous xretry */
1301 __le32 pdev_cont_xretry;
1302
1303 /* wal pdev continuous xretry */
1304 __le32 pdev_tx_timeout;
1305
1306 /* wal pdev resets */
1307 __le32 pdev_resets;
1308
1309 __le32 phy_underrun;
1310
1311 /* MPDU is more than txop limit */
1312 __le32 txop_ovf;
1313 } __packed;
1314
1315 struct htt_dbg_stats_wal_rx_stats {
1316 /* Cnts any change in ring routing mid-ppdu */
1317 __le32 mid_ppdu_route_change;
1318
1319 /* Total number of statuses processed */
1320 __le32 status_rcvd;
1321
1322 /* Extra frags on rings 0-3 */
1323 __le32 r0_frags;
1324 __le32 r1_frags;
1325 __le32 r2_frags;
1326 __le32 r3_frags;
1327
1328 /* MSDUs / MPDUs delivered to HTT */
1329 __le32 htt_msdus;
1330 __le32 htt_mpdus;
1331
1332 /* MSDUs / MPDUs delivered to local stack */
1333 __le32 loc_msdus;
1334 __le32 loc_mpdus;
1335
1336 /* AMSDUs that have more MSDUs than the status ring size */
1337 __le32 oversize_amsdu;
1338
1339 /* Number of PHY errors */
1340 __le32 phy_errs;
1341
1342 /* Number of PHY errors drops */
1343 __le32 phy_err_drop;
1344
1345 /* Number of mpdu errors - FCS, MIC, ENC etc. */
1346 __le32 mpdu_errs;
1347 } __packed;
1348
1349 struct htt_dbg_stats_wal_peer_stats {
1350 __le32 dummy; /* REMOVE THIS ONCE REAL PEER STAT COUNTERS ARE ADDED */
1351 } __packed;
1352
1353 struct htt_dbg_stats_wal_pdev_txrx {
1354 struct htt_dbg_stats_wal_tx_stats tx_stats;
1355 struct htt_dbg_stats_wal_rx_stats rx_stats;
1356 struct htt_dbg_stats_wal_peer_stats peer_stats;
1357 } __packed;
1358
1359 struct htt_dbg_stats_rx_rate_info {
1360 __le32 mcs[10];
1361 __le32 sgi[10];
1362 __le32 nss[4];
1363 __le32 stbc[10];
1364 __le32 bw[3];
1365 __le32 pream[6];
1366 __le32 ldpc;
1367 __le32 txbf;
1368 };
1369
1370 /*
1371 * htt_dbg_stats_status -
1372 * present - The requested stats have been delivered in full.
1373 * This indicates that either the stats information was contained
1374 * in its entirety within this message, or else this message
1375 * completes the delivery of the requested stats info that was
1376 * partially delivered through earlier STATS_CONF messages.
1377 * partial - The requested stats have been delivered in part.
1378 * One or more subsequent STATS_CONF messages with the same
1379 * cookie value will be sent to deliver the remainder of the
1380 * information.
1381 * error - The requested stats could not be delivered, for example due
1382 * to a shortage of memory to construct a message holding the
1383 * requested stats.
1384 * invalid - The requested stat type is either not recognized, or the
1385 * target is configured to not gather the stats type in question.
1386 * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1387 * series_done - This special value indicates that no further stats info
1388 * elements are present within a series of stats info elems
1389 * (within a stats upload confirmation message).
1390 */
1391 enum htt_dbg_stats_status {
1392 HTT_DBG_STATS_STATUS_PRESENT = 0,
1393 HTT_DBG_STATS_STATUS_PARTIAL = 1,
1394 HTT_DBG_STATS_STATUS_ERROR = 2,
1395 HTT_DBG_STATS_STATUS_INVALID = 3,
1396 HTT_DBG_STATS_STATUS_SERIES_DONE = 7
1397 };
1398
1399 /*
1400 * host -> target FRAG DESCRIPTOR/MSDU_EXT DESC bank
1401 *
1402 * The following field definitions describe the format of the HTT host
1403 * to target frag_desc/msdu_ext bank configuration message.
1404 * The message contains the based address and the min and max id of the
1405 * MSDU_EXT/FRAG_DESC that will be used by the HTT to map MSDU DESC and
1406 * MSDU_EXT/FRAG_DESC.
1407 * HTT will use id in HTT descriptor instead sending the frag_desc_ptr.
1408 * For QCA988X HW the firmware will use fragment_desc_ptr but in WIFI2.0
1409 * the hardware does the mapping/translation.
1410 *
1411 * Total banks that can be configured is configured to 16.
1412 *
1413 * This should be called before any TX has be initiated by the HTT
1414 *
1415 * |31 16|15 8|7 5|4 0|
1416 * |------------------------------------------------------------|
1417 * | DESC_SIZE | NUM_BANKS | RES |SWP|pdev| msg type |
1418 * |------------------------------------------------------------|
1419 * | BANK0_BASE_ADDRESS |
1420 * |------------------------------------------------------------|
1421 * | ... |
1422 * |------------------------------------------------------------|
1423 * | BANK15_BASE_ADDRESS |
1424 * |------------------------------------------------------------|
1425 * | BANK0_MAX_ID | BANK0_MIN_ID |
1426 * |------------------------------------------------------------|
1427 * | ... |
1428 * |------------------------------------------------------------|
1429 * | BANK15_MAX_ID | BANK15_MIN_ID |
1430 * |------------------------------------------------------------|
1431 * Header fields:
1432 * - MSG_TYPE
1433 * Bits 7:0
1434 * Value: 0x6
1435 * - BANKx_BASE_ADDRESS
1436 * Bits 31:0
1437 * Purpose: Provide a mechanism to specify the base address of the MSDU_EXT
1438 * bank physical/bus address.
1439 * - BANKx_MIN_ID
1440 * Bits 15:0
1441 * Purpose: Provide a mechanism to specify the min index that needs to
1442 * mapped.
1443 * - BANKx_MAX_ID
1444 * Bits 31:16
1445 * Purpose: Provide a mechanism to specify the max index that needs to
1446 *
1447 */
1448 struct htt_frag_desc_bank_id {
1449 __le16 bank_min_id;
1450 __le16 bank_max_id;
1451 } __packed;
1452
1453 /* real is 16 but it wouldn't fit in the max htt message size
1454 * so we use a conservatively safe value for now
1455 */
1456 #define HTT_FRAG_DESC_BANK_MAX 4
1457
1458 #define HTT_FRAG_DESC_BANK_CFG_INFO_PDEV_ID_MASK 0x03
1459 #define HTT_FRAG_DESC_BANK_CFG_INFO_PDEV_ID_LSB 0
1460 #define HTT_FRAG_DESC_BANK_CFG_INFO_SWAP BIT(2)
1461 #define HTT_FRAG_DESC_BANK_CFG_INFO_Q_STATE_VALID BIT(3)
1462 #define HTT_FRAG_DESC_BANK_CFG_INFO_Q_STATE_DEPTH_TYPE_MASK BIT(4)
1463 #define HTT_FRAG_DESC_BANK_CFG_INFO_Q_STATE_DEPTH_TYPE_LSB 4
1464
1465 enum htt_q_depth_type {
1466 HTT_Q_DEPTH_TYPE_BYTES = 0,
1467 HTT_Q_DEPTH_TYPE_MSDUS = 1,
1468 };
1469
1470 #define HTT_TX_Q_STATE_NUM_PEERS (TARGET_10_4_NUM_QCACHE_PEERS_MAX + \
1471 TARGET_10_4_NUM_VDEVS)
1472 #define HTT_TX_Q_STATE_NUM_TIDS 8
1473 #define HTT_TX_Q_STATE_ENTRY_SIZE 1
1474 #define HTT_TX_Q_STATE_ENTRY_MULTIPLIER 0
1475
1476 /**
1477 * struct htt_q_state_conf - part of htt_frag_desc_bank_cfg for host q state config
1478 *
1479 * Defines host q state format and behavior. See htt_q_state.
1480 *
1481 * @paddr: Queue physical address
1482 * @num_peers: Number of supported peers
1483 * @num_tids: Number of supported TIDs
1484 * @record_size: Defines the size of each host q entry in bytes. In practice
1485 * however firmware (at least 10.4.3-00191) ignores this host
1486 * configuration value and uses hardcoded value of 1.
1487 * @record_multiplier: This is valid only when q depth type is MSDUs. It
1488 * defines the exponent for the power of 2 multiplication.
1489 * @pad: struct padding for 32-bit alignment
1490 */
1491 struct htt_q_state_conf {
1492 __le32 paddr;
1493 __le16 num_peers;
1494 __le16 num_tids;
1495 u8 record_size;
1496 u8 record_multiplier;
1497 u8 pad[2];
1498 } __packed;
1499
1500 struct htt_frag_desc_bank_cfg32 {
1501 u8 info; /* HTT_FRAG_DESC_BANK_CFG_INFO_ */
1502 u8 num_banks;
1503 u8 desc_size;
1504 __le32 bank_base_addrs[HTT_FRAG_DESC_BANK_MAX];
1505 struct htt_frag_desc_bank_id bank_id[HTT_FRAG_DESC_BANK_MAX];
1506 struct htt_q_state_conf q_state;
1507 } __packed;
1508
1509 struct htt_frag_desc_bank_cfg64 {
1510 u8 info; /* HTT_FRAG_DESC_BANK_CFG_INFO_ */
1511 u8 num_banks;
1512 u8 desc_size;
1513 __le64 bank_base_addrs[HTT_FRAG_DESC_BANK_MAX];
1514 struct htt_frag_desc_bank_id bank_id[HTT_FRAG_DESC_BANK_MAX];
1515 struct htt_q_state_conf q_state;
1516 } __packed;
1517
1518 #define HTT_TX_Q_STATE_ENTRY_COEFFICIENT 128
1519 #define HTT_TX_Q_STATE_ENTRY_FACTOR_MASK 0x3f
1520 #define HTT_TX_Q_STATE_ENTRY_FACTOR_LSB 0
1521 #define HTT_TX_Q_STATE_ENTRY_EXP_MASK 0xc0
1522 #define HTT_TX_Q_STATE_ENTRY_EXP_LSB 6
1523
1524 /**
1525 * struct htt_q_state - shared between host and firmware via DMA
1526 *
1527 * This structure is used for the host to expose it's software queue state to
1528 * firmware so that its rate control can schedule fetch requests for optimized
1529 * performance. This is most notably used for MU-MIMO aggregation when multiple
1530 * MU clients are connected.
1531 *
1532 * @count: Each element defines the host queue depth. When q depth type was
1533 * configured as HTT_Q_DEPTH_TYPE_BYTES then each entry is defined as:
1534 * FACTOR * 128 * 8^EXP (see HTT_TX_Q_STATE_ENTRY_FACTOR_MASK and
1535 * HTT_TX_Q_STATE_ENTRY_EXP_MASK). When q depth type was configured as
1536 * HTT_Q_DEPTH_TYPE_MSDUS the number of packets is scaled by 2 **
1537 * record_multiplier (see htt_q_state_conf).
1538 * @map: Used by firmware to quickly check which host queues are not empty. It
1539 * is a bitmap simply saying.
1540 * @seq: Used by firmware to quickly check if the host queues were updated
1541 * since it last checked.
1542 *
1543 * FIXME: Is the q_state map[] size calculation really correct?
1544 */
1545 struct htt_q_state {
1546 u8 count[HTT_TX_Q_STATE_NUM_TIDS][HTT_TX_Q_STATE_NUM_PEERS];
1547 u32 map[HTT_TX_Q_STATE_NUM_TIDS][(HTT_TX_Q_STATE_NUM_PEERS + 31) / 32];
1548 __le32 seq;
1549 } __packed;
1550
1551 #define HTT_TX_FETCH_RECORD_INFO_PEER_ID_MASK 0x0fff
1552 #define HTT_TX_FETCH_RECORD_INFO_PEER_ID_LSB 0
1553 #define HTT_TX_FETCH_RECORD_INFO_TID_MASK 0xf000
1554 #define HTT_TX_FETCH_RECORD_INFO_TID_LSB 12
1555
1556 struct htt_tx_fetch_record {
1557 __le16 info; /* HTT_TX_FETCH_IND_RECORD_INFO_ */
1558 __le16 num_msdus;
1559 __le32 num_bytes;
1560 } __packed;
1561
1562 struct htt_tx_fetch_ind {
1563 u8 pad0;
1564 __le16 fetch_seq_num;
1565 __le32 token;
1566 __le16 num_resp_ids;
1567 __le16 num_records;
1568 union {
1569 /* ath10k_htt_get_tx_fetch_ind_resp_ids() */
1570 DECLARE_FLEX_ARRAY(__le32, resp_ids);
1571 DECLARE_FLEX_ARRAY(struct htt_tx_fetch_record, records);
1572 } __packed;
1573 } __packed;
1574
1575 static inline void *
ath10k_htt_get_tx_fetch_ind_resp_ids(struct htt_tx_fetch_ind * ind)1576 ath10k_htt_get_tx_fetch_ind_resp_ids(struct htt_tx_fetch_ind *ind)
1577 {
1578 return (void *)&ind->records[le16_to_cpu(ind->num_records)];
1579 }
1580
1581 struct htt_tx_fetch_resp {
1582 u8 pad0;
1583 __le16 resp_id;
1584 __le16 fetch_seq_num;
1585 __le16 num_records;
1586 __le32 token;
1587 struct htt_tx_fetch_record records[];
1588 } __packed;
1589
1590 struct htt_tx_fetch_confirm {
1591 u8 pad0;
1592 __le16 num_resp_ids;
1593 __le32 resp_ids[];
1594 } __packed;
1595
1596 enum htt_tx_mode_switch_mode {
1597 HTT_TX_MODE_SWITCH_PUSH = 0,
1598 HTT_TX_MODE_SWITCH_PUSH_PULL = 1,
1599 };
1600
1601 #define HTT_TX_MODE_SWITCH_IND_INFO0_ENABLE BIT(0)
1602 #define HTT_TX_MODE_SWITCH_IND_INFO0_NUM_RECORDS_MASK 0xfffe
1603 #define HTT_TX_MODE_SWITCH_IND_INFO0_NUM_RECORDS_LSB 1
1604
1605 #define HTT_TX_MODE_SWITCH_IND_INFO1_MODE_MASK 0x0003
1606 #define HTT_TX_MODE_SWITCH_IND_INFO1_MODE_LSB 0
1607 #define HTT_TX_MODE_SWITCH_IND_INFO1_THRESHOLD_MASK 0xfffc
1608 #define HTT_TX_MODE_SWITCH_IND_INFO1_THRESHOLD_LSB 2
1609
1610 #define HTT_TX_MODE_SWITCH_RECORD_INFO0_PEER_ID_MASK 0x0fff
1611 #define HTT_TX_MODE_SWITCH_RECORD_INFO0_PEER_ID_LSB 0
1612 #define HTT_TX_MODE_SWITCH_RECORD_INFO0_TID_MASK 0xf000
1613 #define HTT_TX_MODE_SWITCH_RECORD_INFO0_TID_LSB 12
1614
1615 struct htt_tx_mode_switch_record {
1616 __le16 info0; /* HTT_TX_MODE_SWITCH_RECORD_INFO0_ */
1617 __le16 num_max_msdus;
1618 } __packed;
1619
1620 struct htt_tx_mode_switch_ind {
1621 u8 pad0;
1622 __le16 info0; /* HTT_TX_MODE_SWITCH_IND_INFO0_ */
1623 __le16 info1; /* HTT_TX_MODE_SWITCH_IND_INFO1_ */
1624 u8 pad1[2];
1625 struct htt_tx_mode_switch_record records[];
1626 } __packed;
1627
1628 struct htt_channel_change {
1629 u8 pad[3];
1630 __le32 freq;
1631 __le32 center_freq1;
1632 __le32 center_freq2;
1633 __le32 phymode;
1634 } __packed;
1635
1636 struct htt_per_peer_tx_stats_ind {
1637 __le32 succ_bytes;
1638 __le32 retry_bytes;
1639 __le32 failed_bytes;
1640 u8 ratecode;
1641 u8 flags;
1642 __le16 peer_id;
1643 __le16 succ_pkts;
1644 __le16 retry_pkts;
1645 __le16 failed_pkts;
1646 __le16 tx_duration;
1647 __le32 reserved1;
1648 __le32 reserved2;
1649 } __packed;
1650
1651 struct htt_peer_tx_stats {
1652 u8 num_ppdu;
1653 u8 ppdu_len;
1654 u8 version;
1655 u8 payload[];
1656 } __packed;
1657
1658 #define ATH10K_10_2_TX_STATS_OFFSET 136
1659 #define PEER_STATS_FOR_NO_OF_PPDUS 4
1660
1661 struct ath10k_10_2_peer_tx_stats {
1662 u8 ratecode[PEER_STATS_FOR_NO_OF_PPDUS];
1663 u8 success_pkts[PEER_STATS_FOR_NO_OF_PPDUS];
1664 __le16 success_bytes[PEER_STATS_FOR_NO_OF_PPDUS];
1665 u8 retry_pkts[PEER_STATS_FOR_NO_OF_PPDUS];
1666 __le16 retry_bytes[PEER_STATS_FOR_NO_OF_PPDUS];
1667 u8 failed_pkts[PEER_STATS_FOR_NO_OF_PPDUS];
1668 __le16 failed_bytes[PEER_STATS_FOR_NO_OF_PPDUS];
1669 u8 flags[PEER_STATS_FOR_NO_OF_PPDUS];
1670 __le32 tx_duration;
1671 u8 tx_ppdu_cnt;
1672 u8 peer_id;
1673 } __packed;
1674
1675 union htt_rx_pn_t {
1676 /* WEP: 24-bit PN */
1677 u32 pn24;
1678
1679 /* TKIP or CCMP: 48-bit PN */
1680 u64 pn48;
1681
1682 /* WAPI: 128-bit PN */
1683 u64 pn128[2];
1684 };
1685
1686 struct htt_cmd {
1687 struct htt_cmd_hdr hdr;
1688 union {
1689 struct htt_ver_req ver_req;
1690 struct htt_mgmt_tx_desc mgmt_tx;
1691 struct htt_data_tx_desc data_tx;
1692 struct htt_rx_ring_setup_32 rx_setup_32;
1693 struct htt_rx_ring_setup_64 rx_setup_64;
1694 struct htt_stats_req stats_req;
1695 struct htt_oob_sync_req oob_sync_req;
1696 struct htt_aggr_conf aggr_conf;
1697 struct htt_aggr_conf_v2 aggr_conf_v2;
1698 struct htt_frag_desc_bank_cfg32 frag_desc_bank_cfg32;
1699 struct htt_frag_desc_bank_cfg64 frag_desc_bank_cfg64;
1700 struct htt_tx_fetch_resp tx_fetch_resp;
1701 };
1702 } __packed;
1703
1704 struct htt_resp {
1705 struct htt_resp_hdr hdr;
1706 union {
1707 struct htt_ver_resp ver_resp;
1708 struct htt_mgmt_tx_completion mgmt_tx_completion;
1709 struct htt_data_tx_completion data_tx_completion;
1710 struct htt_rx_indication rx_ind;
1711 struct htt_rx_indication_hl rx_ind_hl;
1712 struct htt_rx_fragment_indication rx_frag_ind;
1713 struct htt_rx_peer_map peer_map;
1714 struct htt_rx_peer_unmap peer_unmap;
1715 struct htt_rx_flush rx_flush;
1716 struct htt_rx_addba rx_addba;
1717 struct htt_rx_delba rx_delba;
1718 struct htt_security_indication security_indication;
1719 struct htt_rc_update rc_update;
1720 struct htt_rx_test rx_test;
1721 struct htt_pktlog_msg pktlog_msg;
1722 struct htt_rx_pn_ind rx_pn_ind;
1723 struct htt_rx_offload_ind rx_offload_ind;
1724 struct htt_rx_in_ord_ind rx_in_ord_ind;
1725 struct htt_tx_fetch_ind tx_fetch_ind;
1726 struct htt_tx_fetch_confirm tx_fetch_confirm;
1727 struct htt_tx_mode_switch_ind tx_mode_switch_ind;
1728 struct htt_channel_change chan_change;
1729 struct htt_peer_tx_stats peer_tx_stats;
1730 } __packed;
1731 } __packed;
1732
1733 /*** host side structures follow ***/
1734
1735 struct htt_tx_done {
1736 u16 msdu_id;
1737 u16 status;
1738 u8 ack_rssi;
1739 };
1740
1741 enum htt_tx_compl_state {
1742 HTT_TX_COMPL_STATE_NONE,
1743 HTT_TX_COMPL_STATE_ACK,
1744 HTT_TX_COMPL_STATE_NOACK,
1745 HTT_TX_COMPL_STATE_DISCARD,
1746 };
1747
1748 struct htt_peer_map_event {
1749 u8 vdev_id;
1750 u16 peer_id;
1751 u8 addr[ETH_ALEN];
1752 };
1753
1754 struct htt_peer_unmap_event {
1755 u16 peer_id;
1756 };
1757
1758 struct ath10k_htt_txbuf_32 {
1759 struct htt_data_tx_desc_frag frags[2];
1760 struct ath10k_htc_hdr htc_hdr;
1761 struct htt_cmd_hdr cmd_hdr;
1762 struct htt_data_tx_desc cmd_tx;
1763 } __packed __aligned(4);
1764
1765 struct ath10k_htt_txbuf_64 {
1766 struct htt_data_tx_desc_frag frags[2];
1767 struct ath10k_htc_hdr htc_hdr;
1768 struct htt_cmd_hdr cmd_hdr;
1769 struct htt_data_tx_desc_64 cmd_tx;
1770 } __packed __aligned(4);
1771
1772 struct ath10k_htt {
1773 struct ath10k *ar;
1774 enum ath10k_htc_ep_id eid;
1775
1776 struct sk_buff_head rx_indication_head;
1777
1778 u8 target_version_major;
1779 u8 target_version_minor;
1780 struct completion target_version_received;
1781 u8 max_num_amsdu;
1782 u8 max_num_ampdu;
1783
1784 const enum htt_t2h_msg_type *t2h_msg_types;
1785 u32 t2h_msg_types_max;
1786
1787 struct {
1788 /*
1789 * Ring of network buffer objects - This ring is
1790 * used exclusively by the host SW. This ring
1791 * mirrors the dev_addrs_ring that is shared
1792 * between the host SW and the MAC HW. The host SW
1793 * uses this netbufs ring to locate the network
1794 * buffer objects whose data buffers the HW has
1795 * filled.
1796 */
1797 struct sk_buff **netbufs_ring;
1798
1799 /* This is used only with firmware supporting IN_ORD_IND.
1800 *
1801 * With Full Rx Reorder the HTT Rx Ring is more of a temporary
1802 * buffer ring from which buffer addresses are copied by the
1803 * firmware to MAC Rx ring. Firmware then delivers IN_ORD_IND
1804 * pointing to specific (re-ordered) buffers.
1805 *
1806 * FIXME: With kernel generic hashing functions there's a lot
1807 * of hash collisions for sk_buffs.
1808 */
1809 bool in_ord_rx;
1810 DECLARE_HASHTABLE(skb_table, 4);
1811
1812 /*
1813 * Ring of buffer addresses -
1814 * This ring holds the "physical" device address of the
1815 * rx buffers the host SW provides for the MAC HW to
1816 * fill.
1817 */
1818 union {
1819 __le64 *paddrs_ring_64;
1820 __le32 *paddrs_ring_32;
1821 };
1822
1823 /*
1824 * Base address of ring, as a "physical" device address
1825 * rather than a CPU address.
1826 */
1827 dma_addr_t base_paddr;
1828
1829 /* how many elems in the ring (power of 2) */
1830 int size;
1831
1832 /* size - 1 */
1833 unsigned int size_mask;
1834
1835 /* how many rx buffers to keep in the ring */
1836 int fill_level;
1837
1838 /* how many rx buffers (full+empty) are in the ring */
1839 int fill_cnt;
1840
1841 /*
1842 * alloc_idx - where HTT SW has deposited empty buffers
1843 * This is allocated in consistent mem, so that the FW can
1844 * read this variable, and program the HW's FW_IDX reg with
1845 * the value of this shadow register.
1846 */
1847 struct {
1848 __le32 *vaddr;
1849 dma_addr_t paddr;
1850 } alloc_idx;
1851
1852 /* where HTT SW has processed bufs filled by rx MAC DMA */
1853 struct {
1854 unsigned int msdu_payld;
1855 } sw_rd_idx;
1856
1857 /*
1858 * refill_retry_timer - timer triggered when the ring is
1859 * not refilled to the level expected
1860 */
1861 struct timer_list refill_retry_timer;
1862
1863 /* Protects access to all rx ring buffer state variables */
1864 spinlock_t lock;
1865 } rx_ring;
1866
1867 unsigned int prefetch_len;
1868
1869 /* Protects access to pending_tx, num_pending_tx */
1870 spinlock_t tx_lock;
1871 int max_num_pending_tx;
1872 int num_pending_tx;
1873 int num_pending_mgmt_tx;
1874 struct idr pending_tx;
1875 wait_queue_head_t empty_tx_wq;
1876
1877 /* FIFO for storing tx done status {ack, no-ack, discard} and msdu id */
1878 DECLARE_KFIFO_PTR(txdone_fifo, struct htt_tx_done);
1879
1880 /* set if host-fw communication goes haywire
1881 * used to avoid further failures
1882 */
1883 bool rx_confused;
1884 atomic_t num_mpdus_ready;
1885
1886 /* This is used to group tx/rx completions separately and process them
1887 * in batches to reduce cache stalls
1888 */
1889 struct sk_buff_head rx_msdus_q;
1890 struct sk_buff_head rx_in_ord_compl_q;
1891 struct sk_buff_head tx_fetch_ind_q;
1892
1893 /* rx_status template */
1894 struct ieee80211_rx_status rx_status;
1895
1896 struct {
1897 dma_addr_t paddr;
1898 union {
1899 struct htt_msdu_ext_desc *vaddr_desc_32;
1900 struct htt_msdu_ext_desc_64 *vaddr_desc_64;
1901 };
1902 size_t size;
1903 } frag_desc;
1904
1905 struct {
1906 dma_addr_t paddr;
1907 union {
1908 struct ath10k_htt_txbuf_32 *vaddr_txbuff_32;
1909 struct ath10k_htt_txbuf_64 *vaddr_txbuff_64;
1910 };
1911 size_t size;
1912 } txbuf;
1913
1914 struct {
1915 bool enabled;
1916 struct htt_q_state *vaddr;
1917 dma_addr_t paddr;
1918 u16 num_push_allowed;
1919 u16 num_peers;
1920 u16 num_tids;
1921 enum htt_tx_mode_switch_mode mode;
1922 enum htt_q_depth_type type;
1923 } tx_q_state;
1924
1925 bool tx_mem_allocated;
1926 const struct ath10k_htt_tx_ops *tx_ops;
1927 const struct ath10k_htt_rx_ops *rx_ops;
1928 bool disable_tx_comp;
1929 bool bundle_tx;
1930 struct sk_buff_head tx_req_head;
1931 struct sk_buff_head tx_complete_head;
1932 };
1933
1934 struct ath10k_htt_tx_ops {
1935 int (*htt_send_rx_ring_cfg)(struct ath10k_htt *htt);
1936 int (*htt_send_frag_desc_bank_cfg)(struct ath10k_htt *htt);
1937 int (*htt_alloc_frag_desc)(struct ath10k_htt *htt);
1938 void (*htt_free_frag_desc)(struct ath10k_htt *htt);
1939 int (*htt_tx)(struct ath10k_htt *htt, enum ath10k_hw_txrx_mode txmode,
1940 struct sk_buff *msdu);
1941 int (*htt_alloc_txbuff)(struct ath10k_htt *htt);
1942 void (*htt_free_txbuff)(struct ath10k_htt *htt);
1943 int (*htt_h2t_aggr_cfg_msg)(struct ath10k_htt *htt,
1944 u8 max_subfrms_ampdu,
1945 u8 max_subfrms_amsdu);
1946 void (*htt_flush_tx)(struct ath10k_htt *htt);
1947 };
1948
ath10k_htt_send_rx_ring_cfg(struct ath10k_htt * htt)1949 static inline int ath10k_htt_send_rx_ring_cfg(struct ath10k_htt *htt)
1950 {
1951 if (!htt->tx_ops->htt_send_rx_ring_cfg)
1952 return -EOPNOTSUPP;
1953
1954 return htt->tx_ops->htt_send_rx_ring_cfg(htt);
1955 }
1956
ath10k_htt_send_frag_desc_bank_cfg(struct ath10k_htt * htt)1957 static inline int ath10k_htt_send_frag_desc_bank_cfg(struct ath10k_htt *htt)
1958 {
1959 if (!htt->tx_ops->htt_send_frag_desc_bank_cfg)
1960 return -EOPNOTSUPP;
1961
1962 return htt->tx_ops->htt_send_frag_desc_bank_cfg(htt);
1963 }
1964
ath10k_htt_alloc_frag_desc(struct ath10k_htt * htt)1965 static inline int ath10k_htt_alloc_frag_desc(struct ath10k_htt *htt)
1966 {
1967 if (!htt->tx_ops->htt_alloc_frag_desc)
1968 return -EOPNOTSUPP;
1969
1970 return htt->tx_ops->htt_alloc_frag_desc(htt);
1971 }
1972
ath10k_htt_free_frag_desc(struct ath10k_htt * htt)1973 static inline void ath10k_htt_free_frag_desc(struct ath10k_htt *htt)
1974 {
1975 if (htt->tx_ops->htt_free_frag_desc)
1976 htt->tx_ops->htt_free_frag_desc(htt);
1977 }
1978
ath10k_htt_tx(struct ath10k_htt * htt,enum ath10k_hw_txrx_mode txmode,struct sk_buff * msdu)1979 static inline int ath10k_htt_tx(struct ath10k_htt *htt,
1980 enum ath10k_hw_txrx_mode txmode,
1981 struct sk_buff *msdu)
1982 {
1983 return htt->tx_ops->htt_tx(htt, txmode, msdu);
1984 }
1985
ath10k_htt_flush_tx(struct ath10k_htt * htt)1986 static inline void ath10k_htt_flush_tx(struct ath10k_htt *htt)
1987 {
1988 if (htt->tx_ops->htt_flush_tx)
1989 htt->tx_ops->htt_flush_tx(htt);
1990 }
1991
ath10k_htt_alloc_txbuff(struct ath10k_htt * htt)1992 static inline int ath10k_htt_alloc_txbuff(struct ath10k_htt *htt)
1993 {
1994 if (!htt->tx_ops->htt_alloc_txbuff)
1995 return -EOPNOTSUPP;
1996
1997 return htt->tx_ops->htt_alloc_txbuff(htt);
1998 }
1999
ath10k_htt_free_txbuff(struct ath10k_htt * htt)2000 static inline void ath10k_htt_free_txbuff(struct ath10k_htt *htt)
2001 {
2002 if (htt->tx_ops->htt_free_txbuff)
2003 htt->tx_ops->htt_free_txbuff(htt);
2004 }
2005
ath10k_htt_h2t_aggr_cfg_msg(struct ath10k_htt * htt,u8 max_subfrms_ampdu,u8 max_subfrms_amsdu)2006 static inline int ath10k_htt_h2t_aggr_cfg_msg(struct ath10k_htt *htt,
2007 u8 max_subfrms_ampdu,
2008 u8 max_subfrms_amsdu)
2009
2010 {
2011 if (!htt->tx_ops->htt_h2t_aggr_cfg_msg)
2012 return -EOPNOTSUPP;
2013
2014 return htt->tx_ops->htt_h2t_aggr_cfg_msg(htt,
2015 max_subfrms_ampdu,
2016 max_subfrms_amsdu);
2017 }
2018
2019 struct ath10k_htt_rx_ops {
2020 size_t (*htt_get_rx_ring_size)(struct ath10k_htt *htt);
2021 void (*htt_config_paddrs_ring)(struct ath10k_htt *htt, void *vaddr);
2022 void (*htt_set_paddrs_ring)(struct ath10k_htt *htt, dma_addr_t paddr,
2023 int idx);
2024 void* (*htt_get_vaddr_ring)(struct ath10k_htt *htt);
2025 void (*htt_reset_paddrs_ring)(struct ath10k_htt *htt, int idx);
2026 bool (*htt_rx_proc_rx_frag_ind)(struct ath10k_htt *htt,
2027 struct htt_rx_fragment_indication *rx,
2028 struct sk_buff *skb);
2029 };
2030
ath10k_htt_get_rx_ring_size(struct ath10k_htt * htt)2031 static inline size_t ath10k_htt_get_rx_ring_size(struct ath10k_htt *htt)
2032 {
2033 if (!htt->rx_ops->htt_get_rx_ring_size)
2034 return 0;
2035
2036 return htt->rx_ops->htt_get_rx_ring_size(htt);
2037 }
2038
ath10k_htt_config_paddrs_ring(struct ath10k_htt * htt,void * vaddr)2039 static inline void ath10k_htt_config_paddrs_ring(struct ath10k_htt *htt,
2040 void *vaddr)
2041 {
2042 if (htt->rx_ops->htt_config_paddrs_ring)
2043 htt->rx_ops->htt_config_paddrs_ring(htt, vaddr);
2044 }
2045
ath10k_htt_set_paddrs_ring(struct ath10k_htt * htt,dma_addr_t paddr,int idx)2046 static inline void ath10k_htt_set_paddrs_ring(struct ath10k_htt *htt,
2047 dma_addr_t paddr,
2048 int idx)
2049 {
2050 if (htt->rx_ops->htt_set_paddrs_ring)
2051 htt->rx_ops->htt_set_paddrs_ring(htt, paddr, idx);
2052 }
2053
ath10k_htt_get_vaddr_ring(struct ath10k_htt * htt)2054 static inline void *ath10k_htt_get_vaddr_ring(struct ath10k_htt *htt)
2055 {
2056 if (!htt->rx_ops->htt_get_vaddr_ring)
2057 return NULL;
2058
2059 return htt->rx_ops->htt_get_vaddr_ring(htt);
2060 }
2061
ath10k_htt_reset_paddrs_ring(struct ath10k_htt * htt,int idx)2062 static inline void ath10k_htt_reset_paddrs_ring(struct ath10k_htt *htt, int idx)
2063 {
2064 if (htt->rx_ops->htt_reset_paddrs_ring)
2065 htt->rx_ops->htt_reset_paddrs_ring(htt, idx);
2066 }
2067
ath10k_htt_rx_proc_rx_frag_ind(struct ath10k_htt * htt,struct htt_rx_fragment_indication * rx,struct sk_buff * skb)2068 static inline bool ath10k_htt_rx_proc_rx_frag_ind(struct ath10k_htt *htt,
2069 struct htt_rx_fragment_indication *rx,
2070 struct sk_buff *skb)
2071 {
2072 if (!htt->rx_ops->htt_rx_proc_rx_frag_ind)
2073 return true;
2074
2075 return htt->rx_ops->htt_rx_proc_rx_frag_ind(htt, rx, skb);
2076 }
2077
2078 /* the driver strongly assumes that the rx header status be 64 bytes long,
2079 * so all possible rx_desc structures must respect this assumption.
2080 */
2081 #define RX_HTT_HDR_STATUS_LEN 64
2082
2083 /* The rx descriptor structure layout is programmed via rx ring setup
2084 * so that FW knows how to transfer the rx descriptor to the host.
2085 * Unfortunately, though, QCA6174's firmware doesn't currently behave correctly
2086 * when modifying the structure layout of the rx descriptor beyond what it expects
2087 * (even if it correctly programmed during the rx ring setup).
2088 * Therefore we must keep two different memory layouts, abstract the rx descriptor
2089 * representation and use ath10k_rx_desc_ops
2090 * for correctly accessing rx descriptor data.
2091 */
2092
2093 /* base struct used for abstracting the rx descriptor representation */
2094 struct htt_rx_desc {
2095 union {
2096 /* This field is filled on the host using the msdu buffer
2097 * from htt_rx_indication
2098 */
2099 struct fw_rx_desc_base fw_desc;
2100 u32 pad;
2101 } __packed;
2102 } __packed;
2103
2104 /* rx descriptor for wcn3990 and possibly extensible for newer cards
2105 * Buffers like this are placed on the rx ring.
2106 */
2107 struct htt_rx_desc_v2 {
2108 struct htt_rx_desc base;
2109 struct {
2110 struct rx_attention attention;
2111 struct rx_frag_info frag_info;
2112 struct rx_mpdu_start mpdu_start;
2113 struct rx_msdu_start msdu_start;
2114 struct rx_msdu_end msdu_end;
2115 struct rx_mpdu_end mpdu_end;
2116 struct rx_ppdu_start ppdu_start;
2117 struct rx_ppdu_end ppdu_end;
2118 } __packed;
2119 u8 rx_hdr_status[RX_HTT_HDR_STATUS_LEN];
2120 u8 msdu_payload[];
2121 };
2122
2123 /* QCA6174, QCA988x, QCA99x0 dedicated rx descriptor to make sure their firmware
2124 * works correctly. We keep a single rx descriptor for all these three
2125 * families of cards because from tests it seems to be the most stable solution,
2126 * e.g. having a rx descriptor only for QCA6174 seldom caused firmware crashes
2127 * during some tests.
2128 * Buffers like this are placed on the rx ring.
2129 */
2130 struct htt_rx_desc_v1 {
2131 struct htt_rx_desc base;
2132 struct {
2133 struct rx_attention attention;
2134 struct rx_frag_info_v1 frag_info;
2135 struct rx_mpdu_start mpdu_start;
2136 struct rx_msdu_start_v1 msdu_start;
2137 struct rx_msdu_end_v1 msdu_end;
2138 struct rx_mpdu_end mpdu_end;
2139 struct rx_ppdu_start ppdu_start;
2140 struct rx_ppdu_end_v1 ppdu_end;
2141 } __packed;
2142 u8 rx_hdr_status[RX_HTT_HDR_STATUS_LEN];
2143 u8 msdu_payload[];
2144 };
2145
2146 /* rx_desc abstraction */
2147 struct ath10k_htt_rx_desc_ops {
2148 /* These fields are mandatory, they must be specified in any instance */
2149
2150 /* sizeof() of the rx_desc structure used by this hw */
2151 size_t rx_desc_size;
2152
2153 /* offset of msdu_payload inside the rx_desc structure used by this hw */
2154 size_t rx_desc_msdu_payload_offset;
2155
2156 /* These fields are options.
2157 * When a field is not provided the default implementation gets used
2158 * (see the ath10k_rx_desc_* operations below for more info about the defaults)
2159 */
2160 bool (*rx_desc_get_msdu_limit_error)(struct htt_rx_desc *rxd);
2161 int (*rx_desc_get_l3_pad_bytes)(struct htt_rx_desc *rxd);
2162
2163 /* Safely cast from a void* buffer containing an rx descriptor
2164 * to the proper rx_desc structure
2165 */
2166 struct htt_rx_desc *(*rx_desc_from_raw_buffer)(void *buff);
2167
2168 void (*rx_desc_get_offsets)(struct htt_rx_ring_rx_desc_offsets *offs);
2169 struct rx_attention *(*rx_desc_get_attention)(struct htt_rx_desc *rxd);
2170 struct rx_frag_info_common *(*rx_desc_get_frag_info)(struct htt_rx_desc *rxd);
2171 struct rx_mpdu_start *(*rx_desc_get_mpdu_start)(struct htt_rx_desc *rxd);
2172 struct rx_mpdu_end *(*rx_desc_get_mpdu_end)(struct htt_rx_desc *rxd);
2173 struct rx_msdu_start_common *(*rx_desc_get_msdu_start)(struct htt_rx_desc *rxd);
2174 struct rx_msdu_end_common *(*rx_desc_get_msdu_end)(struct htt_rx_desc *rxd);
2175 struct rx_ppdu_start *(*rx_desc_get_ppdu_start)(struct htt_rx_desc *rxd);
2176 struct rx_ppdu_end_common *(*rx_desc_get_ppdu_end)(struct htt_rx_desc *rxd);
2177 u8 *(*rx_desc_get_rx_hdr_status)(struct htt_rx_desc *rxd);
2178 u8 *(*rx_desc_get_msdu_payload)(struct htt_rx_desc *rxd);
2179 };
2180
2181 extern const struct ath10k_htt_rx_desc_ops qca988x_rx_desc_ops;
2182 extern const struct ath10k_htt_rx_desc_ops qca99x0_rx_desc_ops;
2183 extern const struct ath10k_htt_rx_desc_ops wcn3990_rx_desc_ops;
2184
2185 static inline int
ath10k_htt_rx_desc_get_l3_pad_bytes(struct ath10k_hw_params * hw,struct htt_rx_desc * rxd)2186 ath10k_htt_rx_desc_get_l3_pad_bytes(struct ath10k_hw_params *hw, struct htt_rx_desc *rxd)
2187 {
2188 if (hw->rx_desc_ops->rx_desc_get_l3_pad_bytes)
2189 return hw->rx_desc_ops->rx_desc_get_l3_pad_bytes(rxd);
2190 return 0;
2191 }
2192
2193 static inline bool
ath10k_htt_rx_desc_msdu_limit_error(struct ath10k_hw_params * hw,struct htt_rx_desc * rxd)2194 ath10k_htt_rx_desc_msdu_limit_error(struct ath10k_hw_params *hw, struct htt_rx_desc *rxd)
2195 {
2196 if (hw->rx_desc_ops->rx_desc_get_msdu_limit_error)
2197 return hw->rx_desc_ops->rx_desc_get_msdu_limit_error(rxd);
2198 return false;
2199 }
2200
2201 /* The default implementation of all these getters is using the old rx_desc,
2202 * so that it is easier to define the ath10k_htt_rx_desc_ops instances.
2203 * But probably, if new wireless cards must be supported, it would be better
2204 * to switch the default implementation to the new rx_desc, since this would
2205 * make the extension easier .
2206 */
2207 static inline struct htt_rx_desc *
ath10k_htt_rx_desc_from_raw_buffer(struct ath10k_hw_params * hw,void * buff)2208 ath10k_htt_rx_desc_from_raw_buffer(struct ath10k_hw_params *hw, void *buff)
2209 {
2210 if (hw->rx_desc_ops->rx_desc_from_raw_buffer)
2211 return hw->rx_desc_ops->rx_desc_from_raw_buffer(buff);
2212 return &((struct htt_rx_desc_v1 *)buff)->base;
2213 }
2214
2215 static inline void
ath10k_htt_rx_desc_get_offsets(struct ath10k_hw_params * hw,struct htt_rx_ring_rx_desc_offsets * off)2216 ath10k_htt_rx_desc_get_offsets(struct ath10k_hw_params *hw,
2217 struct htt_rx_ring_rx_desc_offsets *off)
2218 {
2219 if (hw->rx_desc_ops->rx_desc_get_offsets) {
2220 hw->rx_desc_ops->rx_desc_get_offsets(off);
2221 } else {
2222 #define desc_offset(x) (offsetof(struct htt_rx_desc_v1, x) / 4)
2223 off->mac80211_hdr_offset = __cpu_to_le16(desc_offset(rx_hdr_status));
2224 off->msdu_payload_offset = __cpu_to_le16(desc_offset(msdu_payload));
2225 off->ppdu_start_offset = __cpu_to_le16(desc_offset(ppdu_start));
2226 off->ppdu_end_offset = __cpu_to_le16(desc_offset(ppdu_end));
2227 off->mpdu_start_offset = __cpu_to_le16(desc_offset(mpdu_start));
2228 off->mpdu_end_offset = __cpu_to_le16(desc_offset(mpdu_end));
2229 off->msdu_start_offset = __cpu_to_le16(desc_offset(msdu_start));
2230 off->msdu_end_offset = __cpu_to_le16(desc_offset(msdu_end));
2231 off->rx_attention_offset = __cpu_to_le16(desc_offset(attention));
2232 off->frag_info_offset = __cpu_to_le16(desc_offset(frag_info));
2233 #undef desc_offset
2234 }
2235 }
2236
2237 static inline struct rx_attention *
ath10k_htt_rx_desc_get_attention(struct ath10k_hw_params * hw,struct htt_rx_desc * rxd)2238 ath10k_htt_rx_desc_get_attention(struct ath10k_hw_params *hw, struct htt_rx_desc *rxd)
2239 {
2240 struct htt_rx_desc_v1 *rx_desc;
2241
2242 if (hw->rx_desc_ops->rx_desc_get_attention)
2243 return hw->rx_desc_ops->rx_desc_get_attention(rxd);
2244
2245 rx_desc = container_of(rxd, struct htt_rx_desc_v1, base);
2246 return &rx_desc->attention;
2247 }
2248
2249 static inline struct rx_frag_info_common *
ath10k_htt_rx_desc_get_frag_info(struct ath10k_hw_params * hw,struct htt_rx_desc * rxd)2250 ath10k_htt_rx_desc_get_frag_info(struct ath10k_hw_params *hw, struct htt_rx_desc *rxd)
2251 {
2252 struct htt_rx_desc_v1 *rx_desc;
2253
2254 if (hw->rx_desc_ops->rx_desc_get_frag_info)
2255 return hw->rx_desc_ops->rx_desc_get_frag_info(rxd);
2256
2257 rx_desc = container_of(rxd, struct htt_rx_desc_v1, base);
2258 return &rx_desc->frag_info.common;
2259 }
2260
2261 static inline struct rx_mpdu_start *
ath10k_htt_rx_desc_get_mpdu_start(struct ath10k_hw_params * hw,struct htt_rx_desc * rxd)2262 ath10k_htt_rx_desc_get_mpdu_start(struct ath10k_hw_params *hw, struct htt_rx_desc *rxd)
2263 {
2264 struct htt_rx_desc_v1 *rx_desc;
2265
2266 if (hw->rx_desc_ops->rx_desc_get_mpdu_start)
2267 return hw->rx_desc_ops->rx_desc_get_mpdu_start(rxd);
2268
2269 rx_desc = container_of(rxd, struct htt_rx_desc_v1, base);
2270 return &rx_desc->mpdu_start;
2271 }
2272
2273 static inline struct rx_mpdu_end *
ath10k_htt_rx_desc_get_mpdu_end(struct ath10k_hw_params * hw,struct htt_rx_desc * rxd)2274 ath10k_htt_rx_desc_get_mpdu_end(struct ath10k_hw_params *hw, struct htt_rx_desc *rxd)
2275 {
2276 struct htt_rx_desc_v1 *rx_desc;
2277
2278 if (hw->rx_desc_ops->rx_desc_get_mpdu_end)
2279 return hw->rx_desc_ops->rx_desc_get_mpdu_end(rxd);
2280
2281 rx_desc = container_of(rxd, struct htt_rx_desc_v1, base);
2282 return &rx_desc->mpdu_end;
2283 }
2284
2285 static inline struct rx_msdu_start_common *
ath10k_htt_rx_desc_get_msdu_start(struct ath10k_hw_params * hw,struct htt_rx_desc * rxd)2286 ath10k_htt_rx_desc_get_msdu_start(struct ath10k_hw_params *hw, struct htt_rx_desc *rxd)
2287 {
2288 struct htt_rx_desc_v1 *rx_desc;
2289
2290 if (hw->rx_desc_ops->rx_desc_get_msdu_start)
2291 return hw->rx_desc_ops->rx_desc_get_msdu_start(rxd);
2292
2293 rx_desc = container_of(rxd, struct htt_rx_desc_v1, base);
2294 return &rx_desc->msdu_start.common;
2295 }
2296
2297 static inline struct rx_msdu_end_common *
ath10k_htt_rx_desc_get_msdu_end(struct ath10k_hw_params * hw,struct htt_rx_desc * rxd)2298 ath10k_htt_rx_desc_get_msdu_end(struct ath10k_hw_params *hw, struct htt_rx_desc *rxd)
2299 {
2300 struct htt_rx_desc_v1 *rx_desc;
2301
2302 if (hw->rx_desc_ops->rx_desc_get_msdu_end)
2303 return hw->rx_desc_ops->rx_desc_get_msdu_end(rxd);
2304
2305 rx_desc = container_of(rxd, struct htt_rx_desc_v1, base);
2306 return &rx_desc->msdu_end.common;
2307 }
2308
2309 static inline struct rx_ppdu_start *
ath10k_htt_rx_desc_get_ppdu_start(struct ath10k_hw_params * hw,struct htt_rx_desc * rxd)2310 ath10k_htt_rx_desc_get_ppdu_start(struct ath10k_hw_params *hw, struct htt_rx_desc *rxd)
2311 {
2312 struct htt_rx_desc_v1 *rx_desc;
2313
2314 if (hw->rx_desc_ops->rx_desc_get_ppdu_start)
2315 return hw->rx_desc_ops->rx_desc_get_ppdu_start(rxd);
2316
2317 rx_desc = container_of(rxd, struct htt_rx_desc_v1, base);
2318 return &rx_desc->ppdu_start;
2319 }
2320
2321 static inline struct rx_ppdu_end_common *
ath10k_htt_rx_desc_get_ppdu_end(struct ath10k_hw_params * hw,struct htt_rx_desc * rxd)2322 ath10k_htt_rx_desc_get_ppdu_end(struct ath10k_hw_params *hw, struct htt_rx_desc *rxd)
2323 {
2324 struct htt_rx_desc_v1 *rx_desc;
2325
2326 if (hw->rx_desc_ops->rx_desc_get_ppdu_end)
2327 return hw->rx_desc_ops->rx_desc_get_ppdu_end(rxd);
2328
2329 rx_desc = container_of(rxd, struct htt_rx_desc_v1, base);
2330 return &rx_desc->ppdu_end.common;
2331 }
2332
2333 static inline u8 *
ath10k_htt_rx_desc_get_rx_hdr_status(struct ath10k_hw_params * hw,struct htt_rx_desc * rxd)2334 ath10k_htt_rx_desc_get_rx_hdr_status(struct ath10k_hw_params *hw, struct htt_rx_desc *rxd)
2335 {
2336 struct htt_rx_desc_v1 *rx_desc;
2337
2338 if (hw->rx_desc_ops->rx_desc_get_rx_hdr_status)
2339 return hw->rx_desc_ops->rx_desc_get_rx_hdr_status(rxd);
2340
2341 rx_desc = container_of(rxd, struct htt_rx_desc_v1, base);
2342 return rx_desc->rx_hdr_status;
2343 }
2344
2345 static inline u8 *
ath10k_htt_rx_desc_get_msdu_payload(struct ath10k_hw_params * hw,struct htt_rx_desc * rxd)2346 ath10k_htt_rx_desc_get_msdu_payload(struct ath10k_hw_params *hw, struct htt_rx_desc *rxd)
2347 {
2348 struct htt_rx_desc_v1 *rx_desc;
2349
2350 if (hw->rx_desc_ops->rx_desc_get_msdu_payload)
2351 return hw->rx_desc_ops->rx_desc_get_msdu_payload(rxd);
2352
2353 rx_desc = container_of(rxd, struct htt_rx_desc_v1, base);
2354 return rx_desc->msdu_payload;
2355 }
2356
2357 #define HTT_RX_DESC_HL_INFO_SEQ_NUM_MASK 0x00000fff
2358 #define HTT_RX_DESC_HL_INFO_SEQ_NUM_LSB 0
2359 #define HTT_RX_DESC_HL_INFO_ENCRYPTED_MASK 0x00001000
2360 #define HTT_RX_DESC_HL_INFO_ENCRYPTED_LSB 12
2361 #define HTT_RX_DESC_HL_INFO_CHAN_INFO_PRESENT_MASK 0x00002000
2362 #define HTT_RX_DESC_HL_INFO_CHAN_INFO_PRESENT_LSB 13
2363 #define HTT_RX_DESC_HL_INFO_MCAST_BCAST_MASK 0x00010000
2364 #define HTT_RX_DESC_HL_INFO_MCAST_BCAST_LSB 16
2365 #define HTT_RX_DESC_HL_INFO_KEY_ID_OCT_MASK 0x01fe0000
2366 #define HTT_RX_DESC_HL_INFO_KEY_ID_OCT_LSB 17
2367
2368 struct htt_rx_desc_base_hl {
2369 __le32 info; /* HTT_RX_DESC_HL_INFO_ */
2370 };
2371
2372 struct htt_rx_chan_info {
2373 __le16 primary_chan_center_freq_mhz;
2374 __le16 contig_chan1_center_freq_mhz;
2375 __le16 contig_chan2_center_freq_mhz;
2376 u8 phy_mode;
2377 u8 reserved;
2378 } __packed;
2379
2380 #define HTT_RX_DESC_ALIGN 8
2381
2382 #define HTT_MAC_ADDR_LEN 6
2383
2384 /*
2385 * FIX THIS
2386 * Should be: sizeof(struct htt_host_rx_desc) + max rx MSDU size,
2387 * rounded up to a cache line size.
2388 */
2389 #define HTT_RX_BUF_SIZE 2048
2390
2391 /* The HTT_RX_MSDU_SIZE can't be statically computed anymore,
2392 * because it depends on the underlying device rx_desc representation
2393 */
ath10k_htt_rx_msdu_size(struct ath10k_hw_params * hw)2394 static inline int ath10k_htt_rx_msdu_size(struct ath10k_hw_params *hw)
2395 {
2396 return HTT_RX_BUF_SIZE - (int)hw->rx_desc_ops->rx_desc_size;
2397 }
2398
2399 /* Refill a bunch of RX buffers for each refill round so that FW/HW can handle
2400 * aggregated traffic more nicely.
2401 */
2402 #define ATH10K_HTT_MAX_NUM_REFILL 100
2403
2404 /*
2405 * DMA_MAP expects the buffer to be an integral number of cache lines.
2406 * Rather than checking the actual cache line size, this code makes a
2407 * conservative estimate of what the cache line size could be.
2408 */
2409 #define HTT_LOG2_MAX_CACHE_LINE_SIZE 7 /* 2^7 = 128 */
2410 #define HTT_MAX_CACHE_LINE_SIZE_MASK ((1 << HTT_LOG2_MAX_CACHE_LINE_SIZE) - 1)
2411
2412 /* These values are default in most firmware revisions and apparently are a
2413 * sweet spot performance wise.
2414 */
2415 #define ATH10K_HTT_MAX_NUM_AMSDU_DEFAULT 3
2416 #define ATH10K_HTT_MAX_NUM_AMPDU_DEFAULT 64
2417
2418 int ath10k_htt_connect(struct ath10k_htt *htt);
2419 int ath10k_htt_init(struct ath10k *ar);
2420 int ath10k_htt_setup(struct ath10k_htt *htt);
2421
2422 int ath10k_htt_tx_start(struct ath10k_htt *htt);
2423 void ath10k_htt_tx_stop(struct ath10k_htt *htt);
2424 void ath10k_htt_tx_destroy(struct ath10k_htt *htt);
2425 void ath10k_htt_tx_free(struct ath10k_htt *htt);
2426
2427 int ath10k_htt_rx_alloc(struct ath10k_htt *htt);
2428 int ath10k_htt_rx_ring_refill(struct ath10k *ar);
2429 void ath10k_htt_rx_free(struct ath10k_htt *htt);
2430
2431 void ath10k_htt_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb);
2432 void ath10k_htt_htc_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb);
2433 bool ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb);
2434 int ath10k_htt_h2t_ver_req_msg(struct ath10k_htt *htt);
2435 int ath10k_htt_h2t_stats_req(struct ath10k_htt *htt, u32 mask, u32 reset_mask,
2436 u64 cookie);
2437 void ath10k_htt_hif_tx_complete(struct ath10k *ar, struct sk_buff *skb);
2438 int ath10k_htt_tx_fetch_resp(struct ath10k *ar,
2439 __le32 token,
2440 __le16 fetch_seq_num,
2441 struct htt_tx_fetch_record *records,
2442 size_t num_records);
2443 void ath10k_htt_op_ep_tx_credits(struct ath10k *ar);
2444
2445 void ath10k_htt_tx_txq_update(struct ieee80211_hw *hw,
2446 struct ieee80211_txq *txq);
2447 void ath10k_htt_tx_txq_recalc(struct ieee80211_hw *hw,
2448 struct ieee80211_txq *txq);
2449 void ath10k_htt_tx_txq_sync(struct ath10k *ar);
2450 void ath10k_htt_tx_dec_pending(struct ath10k_htt *htt);
2451 int ath10k_htt_tx_inc_pending(struct ath10k_htt *htt);
2452 void ath10k_htt_tx_mgmt_dec_pending(struct ath10k_htt *htt);
2453 int ath10k_htt_tx_mgmt_inc_pending(struct ath10k_htt *htt, bool is_mgmt,
2454 bool is_presp);
2455
2456 int ath10k_htt_tx_alloc_msdu_id(struct ath10k_htt *htt, struct sk_buff *skb);
2457 void ath10k_htt_tx_free_msdu_id(struct ath10k_htt *htt, u16 msdu_id);
2458 int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu);
2459 void ath10k_htt_rx_pktlog_completion_handler(struct ath10k *ar,
2460 struct sk_buff *skb);
2461 int ath10k_htt_txrx_compl_task(struct ath10k *ar, int budget);
2462 int ath10k_htt_rx_hl_indication(struct ath10k *ar, int budget);
2463 void ath10k_htt_set_tx_ops(struct ath10k_htt *htt);
2464 void ath10k_htt_set_rx_ops(struct ath10k_htt *htt);
2465 #endif
2466