xref: /linux/drivers/net/wireless/ath/ath10k/htt.c (revision 4b132aacb0768ac1e652cf517097ea6f237214b9)
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) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
6  */
7 
8 #include <linux/slab.h>
9 #include <linux/if_ether.h>
10 
11 #include "htt.h"
12 #include "core.h"
13 #include "debug.h"
14 #include "hif.h"
15 
16 static const enum htt_t2h_msg_type htt_main_t2h_msg_types[] = {
17 	[HTT_MAIN_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
18 	[HTT_MAIN_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
19 	[HTT_MAIN_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
20 	[HTT_MAIN_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
21 	[HTT_MAIN_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
22 	[HTT_MAIN_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
23 	[HTT_MAIN_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
24 	[HTT_MAIN_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
25 	[HTT_MAIN_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
26 	[HTT_MAIN_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
27 	[HTT_MAIN_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
28 	[HTT_MAIN_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
29 	[HTT_MAIN_T2H_MSG_TYPE_TX_INSPECT_IND] =
30 		HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
31 	[HTT_MAIN_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
32 		HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
33 	[HTT_MAIN_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND] =
34 		HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
35 	[HTT_MAIN_T2H_MSG_TYPE_RX_PN_IND] = HTT_T2H_MSG_TYPE_RX_PN_IND,
36 	[HTT_MAIN_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND] =
37 		HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
38 	[HTT_MAIN_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
39 };
40 
41 static const enum htt_t2h_msg_type htt_10x_t2h_msg_types[] = {
42 	[HTT_10X_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
43 	[HTT_10X_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
44 	[HTT_10X_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
45 	[HTT_10X_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
46 	[HTT_10X_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
47 	[HTT_10X_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
48 	[HTT_10X_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
49 	[HTT_10X_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
50 	[HTT_10X_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
51 	[HTT_10X_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
52 	[HTT_10X_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
53 	[HTT_10X_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
54 	[HTT_10X_T2H_MSG_TYPE_RC_UPDATE_IND] = HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
55 	[HTT_10X_T2H_MSG_TYPE_TX_INSPECT_IND] = HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
56 	[HTT_10X_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
57 	[HTT_10X_T2H_MSG_TYPE_CHAN_CHANGE] = HTT_T2H_MSG_TYPE_CHAN_CHANGE,
58 	[HTT_10X_T2H_MSG_TYPE_AGGR_CONF] = HTT_T2H_MSG_TYPE_AGGR_CONF,
59 	[HTT_10X_T2H_MSG_TYPE_STATS_NOUPLOAD] = HTT_T2H_MSG_TYPE_STATS_NOUPLOAD,
60 	[HTT_10X_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
61 		HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
62 };
63 
64 static const enum htt_t2h_msg_type htt_tlv_t2h_msg_types[] = {
65 	[HTT_TLV_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
66 	[HTT_TLV_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
67 	[HTT_TLV_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
68 	[HTT_TLV_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
69 	[HTT_TLV_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
70 	[HTT_TLV_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
71 	[HTT_TLV_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
72 	[HTT_TLV_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
73 	[HTT_TLV_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
74 	[HTT_TLV_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
75 	[HTT_TLV_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
76 	[HTT_TLV_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
77 	[HTT_TLV_T2H_MSG_TYPE_RC_UPDATE_IND] = HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
78 	[HTT_TLV_T2H_MSG_TYPE_TX_INSPECT_IND] = HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
79 	[HTT_TLV_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
80 		HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
81 	[HTT_TLV_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND] =
82 		HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
83 	[HTT_TLV_T2H_MSG_TYPE_RX_PN_IND] = HTT_T2H_MSG_TYPE_RX_PN_IND,
84 	[HTT_TLV_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND] =
85 		HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
86 	[HTT_TLV_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND] =
87 		HTT_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND,
88 	[HTT_TLV_T2H_MSG_TYPE_WDI_IPA_OP_RESPONSE] =
89 		HTT_T2H_MSG_TYPE_WDI_IPA_OP_RESPONSE,
90 	[HTT_TLV_T2H_MSG_TYPE_CHAN_CHANGE] = HTT_T2H_MSG_TYPE_CHAN_CHANGE,
91 	[HTT_TLV_T2H_MSG_TYPE_RX_OFLD_PKT_ERR] =
92 		HTT_T2H_MSG_TYPE_RX_OFLD_PKT_ERR,
93 	[HTT_TLV_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
94 };
95 
96 static const enum htt_t2h_msg_type htt_10_4_t2h_msg_types[] = {
97 	[HTT_10_4_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
98 	[HTT_10_4_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
99 	[HTT_10_4_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
100 	[HTT_10_4_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
101 	[HTT_10_4_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
102 	[HTT_10_4_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
103 	[HTT_10_4_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
104 	[HTT_10_4_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
105 	[HTT_10_4_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
106 	[HTT_10_4_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
107 	[HTT_10_4_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
108 	[HTT_10_4_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
109 	[HTT_10_4_T2H_MSG_TYPE_RC_UPDATE_IND] = HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
110 	[HTT_10_4_T2H_MSG_TYPE_TX_INSPECT_IND] =
111 				HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
112 	[HTT_10_4_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
113 				HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
114 	[HTT_10_4_T2H_MSG_TYPE_CHAN_CHANGE] = HTT_T2H_MSG_TYPE_CHAN_CHANGE,
115 	[HTT_10_4_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND] =
116 				HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
117 	[HTT_10_4_T2H_MSG_TYPE_RX_PN_IND] = HTT_T2H_MSG_TYPE_RX_PN_IND,
118 	[HTT_10_4_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND] =
119 				HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
120 	[HTT_10_4_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
121 	[HTT_10_4_T2H_MSG_TYPE_EN_STATS] = HTT_T2H_MSG_TYPE_EN_STATS,
122 	[HTT_10_4_T2H_MSG_TYPE_AGGR_CONF] = HTT_T2H_MSG_TYPE_AGGR_CONF,
123 	[HTT_10_4_T2H_MSG_TYPE_TX_FETCH_IND] =
124 				HTT_T2H_MSG_TYPE_TX_FETCH_IND,
125 	[HTT_10_4_T2H_MSG_TYPE_TX_FETCH_CONFIRM] =
126 				HTT_T2H_MSG_TYPE_TX_FETCH_CONFIRM,
127 	[HTT_10_4_T2H_MSG_TYPE_STATS_NOUPLOAD] =
128 				HTT_T2H_MSG_TYPE_STATS_NOUPLOAD,
129 	[HTT_10_4_T2H_MSG_TYPE_TX_MODE_SWITCH_IND] =
130 				HTT_T2H_MSG_TYPE_TX_MODE_SWITCH_IND,
131 	[HTT_10_4_T2H_MSG_TYPE_PEER_STATS] =
132 				HTT_T2H_MSG_TYPE_PEER_STATS,
133 };
134 
135 const struct ath10k_htt_rx_desc_ops qca988x_rx_desc_ops = {
136 	.rx_desc_size = sizeof(struct htt_rx_desc_v1),
137 	.rx_desc_msdu_payload_offset = offsetof(struct htt_rx_desc_v1, msdu_payload)
138 };
139 
140 static int ath10k_qca99x0_rx_desc_get_l3_pad_bytes(struct htt_rx_desc *rxd)
141 {
142 	struct htt_rx_desc_v1 *rx_desc = container_of(rxd,
143 						      struct htt_rx_desc_v1,
144 						      base);
145 
146 	return MS(__le32_to_cpu(rx_desc->msdu_end.qca99x0.info1),
147 		  RX_MSDU_END_INFO1_L3_HDR_PAD);
148 }
149 
150 static bool ath10k_qca99x0_rx_desc_msdu_limit_error(struct htt_rx_desc *rxd)
151 {
152 	struct htt_rx_desc_v1 *rx_desc = container_of(rxd,
153 						      struct htt_rx_desc_v1,
154 						      base);
155 
156 	return !!(rx_desc->msdu_end.common.info0 &
157 		  __cpu_to_le32(RX_MSDU_END_INFO0_MSDU_LIMIT_ERR));
158 }
159 
160 const struct ath10k_htt_rx_desc_ops qca99x0_rx_desc_ops = {
161 	.rx_desc_size = sizeof(struct htt_rx_desc_v1),
162 	.rx_desc_msdu_payload_offset = offsetof(struct htt_rx_desc_v1, msdu_payload),
163 
164 	.rx_desc_get_l3_pad_bytes = ath10k_qca99x0_rx_desc_get_l3_pad_bytes,
165 	.rx_desc_get_msdu_limit_error = ath10k_qca99x0_rx_desc_msdu_limit_error,
166 };
167 
168 static void ath10k_rx_desc_wcn3990_get_offsets(struct htt_rx_ring_rx_desc_offsets *off)
169 {
170 #define desc_offset(x) (offsetof(struct htt_rx_desc_v2, x) / 4)
171 	off->mac80211_hdr_offset = __cpu_to_le16(desc_offset(rx_hdr_status));
172 	off->msdu_payload_offset = __cpu_to_le16(desc_offset(msdu_payload));
173 	off->ppdu_start_offset = __cpu_to_le16(desc_offset(ppdu_start));
174 	off->ppdu_end_offset = __cpu_to_le16(desc_offset(ppdu_end));
175 	off->mpdu_start_offset = __cpu_to_le16(desc_offset(mpdu_start));
176 	off->mpdu_end_offset = __cpu_to_le16(desc_offset(mpdu_end));
177 	off->msdu_start_offset = __cpu_to_le16(desc_offset(msdu_start));
178 	off->msdu_end_offset = __cpu_to_le16(desc_offset(msdu_end));
179 	off->rx_attention_offset = __cpu_to_le16(desc_offset(attention));
180 	off->frag_info_offset = __cpu_to_le16(desc_offset(frag_info));
181 #undef desc_offset
182 }
183 
184 static struct htt_rx_desc *
185 ath10k_rx_desc_wcn3990_from_raw_buffer(void *buff)
186 {
187 	return &((struct htt_rx_desc_v2 *)buff)->base;
188 }
189 
190 static struct rx_attention *
191 ath10k_rx_desc_wcn3990_get_attention(struct htt_rx_desc *rxd)
192 {
193 	struct htt_rx_desc_v2 *rx_desc = container_of(rxd, struct htt_rx_desc_v2, base);
194 
195 	return &rx_desc->attention;
196 }
197 
198 static struct rx_frag_info_common *
199 ath10k_rx_desc_wcn3990_get_frag_info(struct htt_rx_desc *rxd)
200 {
201 	struct htt_rx_desc_v2 *rx_desc = container_of(rxd, struct htt_rx_desc_v2, base);
202 
203 	return &rx_desc->frag_info.common;
204 }
205 
206 static struct rx_mpdu_start *
207 ath10k_rx_desc_wcn3990_get_mpdu_start(struct htt_rx_desc *rxd)
208 {
209 	struct htt_rx_desc_v2 *rx_desc = container_of(rxd, struct htt_rx_desc_v2, base);
210 
211 	return &rx_desc->mpdu_start;
212 }
213 
214 static struct rx_mpdu_end *
215 ath10k_rx_desc_wcn3990_get_mpdu_end(struct htt_rx_desc *rxd)
216 {
217 	struct htt_rx_desc_v2 *rx_desc = container_of(rxd, struct htt_rx_desc_v2, base);
218 
219 	return &rx_desc->mpdu_end;
220 }
221 
222 static struct rx_msdu_start_common *
223 ath10k_rx_desc_wcn3990_get_msdu_start(struct htt_rx_desc *rxd)
224 {
225 	struct htt_rx_desc_v2 *rx_desc = container_of(rxd, struct htt_rx_desc_v2, base);
226 
227 	return &rx_desc->msdu_start.common;
228 }
229 
230 static struct rx_msdu_end_common *
231 ath10k_rx_desc_wcn3990_get_msdu_end(struct htt_rx_desc *rxd)
232 {
233 	struct htt_rx_desc_v2 *rx_desc = container_of(rxd, struct htt_rx_desc_v2, base);
234 
235 	return &rx_desc->msdu_end.common;
236 }
237 
238 static struct rx_ppdu_start *
239 ath10k_rx_desc_wcn3990_get_ppdu_start(struct htt_rx_desc *rxd)
240 {
241 	struct htt_rx_desc_v2 *rx_desc = container_of(rxd, struct htt_rx_desc_v2, base);
242 
243 	return &rx_desc->ppdu_start;
244 }
245 
246 static struct rx_ppdu_end_common *
247 ath10k_rx_desc_wcn3990_get_ppdu_end(struct htt_rx_desc *rxd)
248 {
249 	struct htt_rx_desc_v2 *rx_desc = container_of(rxd, struct htt_rx_desc_v2, base);
250 
251 	return &rx_desc->ppdu_end.common;
252 }
253 
254 static u8 *
255 ath10k_rx_desc_wcn3990_get_rx_hdr_status(struct htt_rx_desc *rxd)
256 {
257 	struct htt_rx_desc_v2 *rx_desc = container_of(rxd, struct htt_rx_desc_v2, base);
258 
259 	return rx_desc->rx_hdr_status;
260 }
261 
262 static u8 *
263 ath10k_rx_desc_wcn3990_get_msdu_payload(struct htt_rx_desc *rxd)
264 {
265 	struct htt_rx_desc_v2 *rx_desc = container_of(rxd, struct htt_rx_desc_v2, base);
266 
267 	return rx_desc->msdu_payload;
268 }
269 
270 const struct ath10k_htt_rx_desc_ops wcn3990_rx_desc_ops = {
271 	.rx_desc_size = sizeof(struct htt_rx_desc_v2),
272 	.rx_desc_msdu_payload_offset = offsetof(struct htt_rx_desc_v2, msdu_payload),
273 
274 	.rx_desc_from_raw_buffer = ath10k_rx_desc_wcn3990_from_raw_buffer,
275 	.rx_desc_get_offsets = ath10k_rx_desc_wcn3990_get_offsets,
276 	.rx_desc_get_attention = ath10k_rx_desc_wcn3990_get_attention,
277 	.rx_desc_get_frag_info = ath10k_rx_desc_wcn3990_get_frag_info,
278 	.rx_desc_get_mpdu_start = ath10k_rx_desc_wcn3990_get_mpdu_start,
279 	.rx_desc_get_mpdu_end = ath10k_rx_desc_wcn3990_get_mpdu_end,
280 	.rx_desc_get_msdu_start = ath10k_rx_desc_wcn3990_get_msdu_start,
281 	.rx_desc_get_msdu_end = ath10k_rx_desc_wcn3990_get_msdu_end,
282 	.rx_desc_get_ppdu_start = ath10k_rx_desc_wcn3990_get_ppdu_start,
283 	.rx_desc_get_ppdu_end = ath10k_rx_desc_wcn3990_get_ppdu_end,
284 	.rx_desc_get_rx_hdr_status = ath10k_rx_desc_wcn3990_get_rx_hdr_status,
285 	.rx_desc_get_msdu_payload = ath10k_rx_desc_wcn3990_get_msdu_payload,
286 };
287 
288 int ath10k_htt_connect(struct ath10k_htt *htt)
289 {
290 	struct ath10k_htc_svc_conn_req conn_req;
291 	struct ath10k_htc_svc_conn_resp conn_resp;
292 	struct ath10k *ar = htt->ar;
293 	struct ath10k_htc_ep *ep;
294 	int status;
295 
296 	memset(&conn_req, 0, sizeof(conn_req));
297 	memset(&conn_resp, 0, sizeof(conn_resp));
298 
299 	conn_req.ep_ops.ep_tx_complete = ath10k_htt_htc_tx_complete;
300 	conn_req.ep_ops.ep_rx_complete = ath10k_htt_htc_t2h_msg_handler;
301 	conn_req.ep_ops.ep_tx_credits = ath10k_htt_op_ep_tx_credits;
302 
303 	/* connect to control service */
304 	conn_req.service_id = ATH10K_HTC_SVC_ID_HTT_DATA_MSG;
305 
306 	status = ath10k_htc_connect_service(&htt->ar->htc, &conn_req,
307 					    &conn_resp);
308 
309 	if (status)
310 		return status;
311 
312 	htt->eid = conn_resp.eid;
313 
314 	if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL) {
315 		ep = &ar->htc.endpoint[htt->eid];
316 		ath10k_htc_setup_tx_req(ep);
317 	}
318 
319 	htt->disable_tx_comp = ath10k_hif_get_htt_tx_complete(htt->ar);
320 	if (htt->disable_tx_comp)
321 		ath10k_htc_change_tx_credit_flow(&htt->ar->htc, htt->eid, true);
322 
323 	return 0;
324 }
325 
326 int ath10k_htt_init(struct ath10k *ar)
327 {
328 	struct ath10k_htt *htt = &ar->htt;
329 
330 	htt->ar = ar;
331 
332 	/*
333 	 * Prefetch enough data to satisfy target
334 	 * classification engine.
335 	 * This is for LL chips. HL chips will probably
336 	 * transfer all frame in the tx fragment.
337 	 */
338 	htt->prefetch_len =
339 		36 + /* 802.11 + qos + ht */
340 		4 + /* 802.1q */
341 		8 + /* llc snap */
342 		2; /* ip4 dscp or ip6 priority */
343 
344 	switch (ar->running_fw->fw_file.htt_op_version) {
345 	case ATH10K_FW_HTT_OP_VERSION_10_4:
346 		ar->htt.t2h_msg_types = htt_10_4_t2h_msg_types;
347 		ar->htt.t2h_msg_types_max = HTT_10_4_T2H_NUM_MSGS;
348 		break;
349 	case ATH10K_FW_HTT_OP_VERSION_10_1:
350 		ar->htt.t2h_msg_types = htt_10x_t2h_msg_types;
351 		ar->htt.t2h_msg_types_max = HTT_10X_T2H_NUM_MSGS;
352 		break;
353 	case ATH10K_FW_HTT_OP_VERSION_TLV:
354 		ar->htt.t2h_msg_types = htt_tlv_t2h_msg_types;
355 		ar->htt.t2h_msg_types_max = HTT_TLV_T2H_NUM_MSGS;
356 		break;
357 	case ATH10K_FW_HTT_OP_VERSION_MAIN:
358 		ar->htt.t2h_msg_types = htt_main_t2h_msg_types;
359 		ar->htt.t2h_msg_types_max = HTT_MAIN_T2H_NUM_MSGS;
360 		break;
361 	case ATH10K_FW_HTT_OP_VERSION_MAX:
362 	case ATH10K_FW_HTT_OP_VERSION_UNSET:
363 		WARN_ON(1);
364 		return -EINVAL;
365 	}
366 	ath10k_htt_set_tx_ops(htt);
367 	ath10k_htt_set_rx_ops(htt);
368 
369 	return 0;
370 }
371 
372 #define HTT_TARGET_VERSION_TIMEOUT_HZ (3 * HZ)
373 
374 static int ath10k_htt_verify_version(struct ath10k_htt *htt)
375 {
376 	struct ath10k *ar = htt->ar;
377 
378 	ath10k_dbg(ar, ATH10K_DBG_BOOT, "htt target version %d.%d\n",
379 		   htt->target_version_major, htt->target_version_minor);
380 
381 	if (htt->target_version_major != 2 &&
382 	    htt->target_version_major != 3) {
383 		ath10k_err(ar, "unsupported htt major version %d. supported versions are 2 and 3\n",
384 			   htt->target_version_major);
385 		return -EOPNOTSUPP;
386 	}
387 
388 	return 0;
389 }
390 
391 int ath10k_htt_setup(struct ath10k_htt *htt)
392 {
393 	struct ath10k *ar = htt->ar;
394 	int status;
395 
396 	init_completion(&htt->target_version_received);
397 
398 	status = ath10k_htt_h2t_ver_req_msg(htt);
399 	if (status)
400 		return status;
401 
402 	status = wait_for_completion_timeout(&htt->target_version_received,
403 					     HTT_TARGET_VERSION_TIMEOUT_HZ);
404 	if (status == 0) {
405 		ath10k_warn(ar, "htt version request timed out\n");
406 		return -ETIMEDOUT;
407 	}
408 
409 	status = ath10k_htt_verify_version(htt);
410 	if (status) {
411 		ath10k_warn(ar, "failed to verify htt version: %d\n",
412 			    status);
413 		return status;
414 	}
415 
416 	status = ath10k_htt_send_frag_desc_bank_cfg(htt);
417 	if (status)
418 		return status;
419 
420 	status = ath10k_htt_send_rx_ring_cfg(htt);
421 	if (status) {
422 		ath10k_warn(ar, "failed to setup rx ring: %d\n",
423 			    status);
424 		return status;
425 	}
426 
427 	status = ath10k_htt_h2t_aggr_cfg_msg(htt,
428 					     htt->max_num_ampdu,
429 					     htt->max_num_amsdu);
430 	if (status) {
431 		ath10k_warn(ar, "failed to setup amsdu/ampdu limit: %d\n",
432 			    status);
433 		return status;
434 	}
435 
436 	return 0;
437 }
438