1 // SPDX-License-Identifier: BSD-3-Clause-Clear
2 /*
3 * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
4 * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
5 */
6
7 #include <crypto/hash.h>
8 #include "core.h"
9 #include "dp_tx.h"
10 #include "hal_tx.h"
11 #include "hif.h"
12 #include "debug.h"
13 #include "dp_rx.h"
14 #include "peer.h"
15 #include "dp_mon.h"
16
ath12k_dp_htt_htc_tx_complete(struct ath12k_base * ab,struct sk_buff * skb)17 static void ath12k_dp_htt_htc_tx_complete(struct ath12k_base *ab,
18 struct sk_buff *skb)
19 {
20 dev_kfree_skb_any(skb);
21 }
22
ath12k_dp_peer_cleanup(struct ath12k * ar,int vdev_id,const u8 * addr)23 void ath12k_dp_peer_cleanup(struct ath12k *ar, int vdev_id, const u8 *addr)
24 {
25 struct ath12k_base *ab = ar->ab;
26 struct ath12k_peer *peer;
27
28 /* TODO: Any other peer specific DP cleanup */
29
30 spin_lock_bh(&ab->base_lock);
31 peer = ath12k_peer_find(ab, vdev_id, addr);
32 if (!peer) {
33 ath12k_warn(ab, "failed to lookup peer %pM on vdev %d\n",
34 addr, vdev_id);
35 spin_unlock_bh(&ab->base_lock);
36 return;
37 }
38
39 ath12k_dp_rx_peer_tid_cleanup(ar, peer);
40 crypto_free_shash(peer->tfm_mmic);
41 peer->dp_setup_done = false;
42 spin_unlock_bh(&ab->base_lock);
43 }
44
ath12k_dp_peer_setup(struct ath12k * ar,int vdev_id,const u8 * addr)45 int ath12k_dp_peer_setup(struct ath12k *ar, int vdev_id, const u8 *addr)
46 {
47 struct ath12k_base *ab = ar->ab;
48 struct ath12k_peer *peer;
49 u32 reo_dest;
50 int ret = 0, tid;
51
52 /* NOTE: reo_dest ring id starts from 1 unlike mac_id which starts from 0 */
53 reo_dest = ar->dp.mac_id + 1;
54 ret = ath12k_wmi_set_peer_param(ar, addr, vdev_id,
55 WMI_PEER_SET_DEFAULT_ROUTING,
56 DP_RX_HASH_ENABLE | (reo_dest << 1));
57
58 if (ret) {
59 ath12k_warn(ab, "failed to set default routing %d peer :%pM vdev_id :%d\n",
60 ret, addr, vdev_id);
61 return ret;
62 }
63
64 for (tid = 0; tid <= IEEE80211_NUM_TIDS; tid++) {
65 ret = ath12k_dp_rx_peer_tid_setup(ar, addr, vdev_id, tid, 1, 0,
66 HAL_PN_TYPE_NONE);
67 if (ret) {
68 ath12k_warn(ab, "failed to setup rxd tid queue for tid %d: %d\n",
69 tid, ret);
70 goto peer_clean;
71 }
72 }
73
74 ret = ath12k_dp_rx_peer_frag_setup(ar, addr, vdev_id);
75 if (ret) {
76 ath12k_warn(ab, "failed to setup rx defrag context\n");
77 goto peer_clean;
78 }
79
80 /* TODO: Setup other peer specific resource used in data path */
81
82 return 0;
83
84 peer_clean:
85 spin_lock_bh(&ab->base_lock);
86
87 peer = ath12k_peer_find(ab, vdev_id, addr);
88 if (!peer) {
89 ath12k_warn(ab, "failed to find the peer to del rx tid\n");
90 spin_unlock_bh(&ab->base_lock);
91 return -ENOENT;
92 }
93
94 for (; tid >= 0; tid--)
95 ath12k_dp_rx_peer_tid_delete(ar, peer, tid);
96
97 spin_unlock_bh(&ab->base_lock);
98
99 return ret;
100 }
101
ath12k_dp_srng_cleanup(struct ath12k_base * ab,struct dp_srng * ring)102 void ath12k_dp_srng_cleanup(struct ath12k_base *ab, struct dp_srng *ring)
103 {
104 if (!ring->vaddr_unaligned)
105 return;
106
107 dma_free_coherent(ab->dev, ring->size, ring->vaddr_unaligned,
108 ring->paddr_unaligned);
109
110 ring->vaddr_unaligned = NULL;
111 }
112
ath12k_dp_srng_find_ring_in_mask(int ring_num,const u8 * grp_mask)113 static int ath12k_dp_srng_find_ring_in_mask(int ring_num, const u8 *grp_mask)
114 {
115 int ext_group_num;
116 u8 mask = 1 << ring_num;
117
118 for (ext_group_num = 0; ext_group_num < ATH12K_EXT_IRQ_GRP_NUM_MAX;
119 ext_group_num++) {
120 if (mask & grp_mask[ext_group_num])
121 return ext_group_num;
122 }
123
124 return -ENOENT;
125 }
126
ath12k_dp_srng_calculate_msi_group(struct ath12k_base * ab,enum hal_ring_type type,int ring_num)127 static int ath12k_dp_srng_calculate_msi_group(struct ath12k_base *ab,
128 enum hal_ring_type type, int ring_num)
129 {
130 const u8 *grp_mask;
131
132 switch (type) {
133 case HAL_WBM2SW_RELEASE:
134 if (ring_num == HAL_WBM2SW_REL_ERR_RING_NUM) {
135 grp_mask = &ab->hw_params->ring_mask->rx_wbm_rel[0];
136 ring_num = 0;
137 } else {
138 grp_mask = &ab->hw_params->ring_mask->tx[0];
139 }
140 break;
141 case HAL_REO_EXCEPTION:
142 grp_mask = &ab->hw_params->ring_mask->rx_err[0];
143 break;
144 case HAL_REO_DST:
145 grp_mask = &ab->hw_params->ring_mask->rx[0];
146 break;
147 case HAL_REO_STATUS:
148 grp_mask = &ab->hw_params->ring_mask->reo_status[0];
149 break;
150 case HAL_RXDMA_MONITOR_STATUS:
151 case HAL_RXDMA_MONITOR_DST:
152 grp_mask = &ab->hw_params->ring_mask->rx_mon_dest[0];
153 break;
154 case HAL_TX_MONITOR_DST:
155 grp_mask = &ab->hw_params->ring_mask->tx_mon_dest[0];
156 break;
157 case HAL_RXDMA_BUF:
158 grp_mask = &ab->hw_params->ring_mask->host2rxdma[0];
159 break;
160 case HAL_RXDMA_MONITOR_BUF:
161 case HAL_TCL_DATA:
162 case HAL_TCL_CMD:
163 case HAL_REO_CMD:
164 case HAL_SW2WBM_RELEASE:
165 case HAL_WBM_IDLE_LINK:
166 case HAL_TCL_STATUS:
167 case HAL_REO_REINJECT:
168 case HAL_CE_SRC:
169 case HAL_CE_DST:
170 case HAL_CE_DST_STATUS:
171 default:
172 return -ENOENT;
173 }
174
175 return ath12k_dp_srng_find_ring_in_mask(ring_num, grp_mask);
176 }
177
ath12k_dp_srng_msi_setup(struct ath12k_base * ab,struct hal_srng_params * ring_params,enum hal_ring_type type,int ring_num)178 static void ath12k_dp_srng_msi_setup(struct ath12k_base *ab,
179 struct hal_srng_params *ring_params,
180 enum hal_ring_type type, int ring_num)
181 {
182 int msi_group_number, msi_data_count;
183 u32 msi_data_start, msi_irq_start, addr_lo, addr_hi;
184 int ret;
185
186 ret = ath12k_hif_get_user_msi_vector(ab, "DP",
187 &msi_data_count, &msi_data_start,
188 &msi_irq_start);
189 if (ret)
190 return;
191
192 msi_group_number = ath12k_dp_srng_calculate_msi_group(ab, type,
193 ring_num);
194 if (msi_group_number < 0) {
195 ath12k_dbg(ab, ATH12K_DBG_PCI,
196 "ring not part of an ext_group; ring_type: %d,ring_num %d",
197 type, ring_num);
198 ring_params->msi_addr = 0;
199 ring_params->msi_data = 0;
200 return;
201 }
202
203 if (msi_group_number > msi_data_count) {
204 ath12k_dbg(ab, ATH12K_DBG_PCI,
205 "multiple msi_groups share one msi, msi_group_num %d",
206 msi_group_number);
207 }
208
209 ath12k_hif_get_msi_address(ab, &addr_lo, &addr_hi);
210
211 ring_params->msi_addr = addr_lo;
212 ring_params->msi_addr |= (dma_addr_t)(((uint64_t)addr_hi) << 32);
213 ring_params->msi_data = (msi_group_number % msi_data_count)
214 + msi_data_start;
215 ring_params->flags |= HAL_SRNG_FLAGS_MSI_INTR;
216 }
217
ath12k_dp_srng_setup(struct ath12k_base * ab,struct dp_srng * ring,enum hal_ring_type type,int ring_num,int mac_id,int num_entries)218 int ath12k_dp_srng_setup(struct ath12k_base *ab, struct dp_srng *ring,
219 enum hal_ring_type type, int ring_num,
220 int mac_id, int num_entries)
221 {
222 struct hal_srng_params params = { 0 };
223 int entry_sz = ath12k_hal_srng_get_entrysize(ab, type);
224 int max_entries = ath12k_hal_srng_get_max_entries(ab, type);
225 int ret;
226
227 if (max_entries < 0 || entry_sz < 0)
228 return -EINVAL;
229
230 if (num_entries > max_entries)
231 num_entries = max_entries;
232
233 ring->size = (num_entries * entry_sz) + HAL_RING_BASE_ALIGN - 1;
234 ring->vaddr_unaligned = dma_alloc_coherent(ab->dev, ring->size,
235 &ring->paddr_unaligned,
236 GFP_KERNEL);
237 if (!ring->vaddr_unaligned)
238 return -ENOMEM;
239
240 ring->vaddr = PTR_ALIGN(ring->vaddr_unaligned, HAL_RING_BASE_ALIGN);
241 ring->paddr = ring->paddr_unaligned + ((unsigned long)ring->vaddr -
242 (unsigned long)ring->vaddr_unaligned);
243
244 params.ring_base_vaddr = ring->vaddr;
245 params.ring_base_paddr = ring->paddr;
246 params.num_entries = num_entries;
247 ath12k_dp_srng_msi_setup(ab, ¶ms, type, ring_num + mac_id);
248
249 switch (type) {
250 case HAL_REO_DST:
251 params.intr_batch_cntr_thres_entries =
252 HAL_SRNG_INT_BATCH_THRESHOLD_RX;
253 params.intr_timer_thres_us = HAL_SRNG_INT_TIMER_THRESHOLD_RX;
254 break;
255 case HAL_RXDMA_BUF:
256 case HAL_RXDMA_MONITOR_BUF:
257 case HAL_RXDMA_MONITOR_STATUS:
258 params.low_threshold = num_entries >> 3;
259 params.flags |= HAL_SRNG_FLAGS_LOW_THRESH_INTR_EN;
260 params.intr_batch_cntr_thres_entries = 0;
261 params.intr_timer_thres_us = HAL_SRNG_INT_TIMER_THRESHOLD_RX;
262 break;
263 case HAL_TX_MONITOR_DST:
264 params.low_threshold = DP_TX_MONITOR_BUF_SIZE_MAX >> 3;
265 params.flags |= HAL_SRNG_FLAGS_LOW_THRESH_INTR_EN;
266 params.intr_batch_cntr_thres_entries = 0;
267 params.intr_timer_thres_us = HAL_SRNG_INT_TIMER_THRESHOLD_RX;
268 break;
269 case HAL_WBM2SW_RELEASE:
270 if (ab->hw_params->hw_ops->dp_srng_is_tx_comp_ring(ring_num)) {
271 params.intr_batch_cntr_thres_entries =
272 HAL_SRNG_INT_BATCH_THRESHOLD_TX;
273 params.intr_timer_thres_us =
274 HAL_SRNG_INT_TIMER_THRESHOLD_TX;
275 break;
276 }
277 /* follow through when ring_num != HAL_WBM2SW_REL_ERR_RING_NUM */
278 fallthrough;
279 case HAL_REO_EXCEPTION:
280 case HAL_REO_REINJECT:
281 case HAL_REO_CMD:
282 case HAL_REO_STATUS:
283 case HAL_TCL_DATA:
284 case HAL_TCL_CMD:
285 case HAL_TCL_STATUS:
286 case HAL_WBM_IDLE_LINK:
287 case HAL_SW2WBM_RELEASE:
288 case HAL_RXDMA_DST:
289 case HAL_RXDMA_MONITOR_DST:
290 case HAL_RXDMA_MONITOR_DESC:
291 params.intr_batch_cntr_thres_entries =
292 HAL_SRNG_INT_BATCH_THRESHOLD_OTHER;
293 params.intr_timer_thres_us = HAL_SRNG_INT_TIMER_THRESHOLD_OTHER;
294 break;
295 case HAL_RXDMA_DIR_BUF:
296 break;
297 default:
298 ath12k_warn(ab, "Not a valid ring type in dp :%d\n", type);
299 return -EINVAL;
300 }
301
302 ret = ath12k_hal_srng_setup(ab, type, ring_num, mac_id, ¶ms);
303 if (ret < 0) {
304 ath12k_warn(ab, "failed to setup srng: %d ring_id %d\n",
305 ret, ring_num);
306 return ret;
307 }
308
309 ring->ring_id = ret;
310
311 return 0;
312 }
313
314 static
ath12k_dp_tx_get_vdev_bank_config(struct ath12k_base * ab,struct ath12k_vif * arvif)315 u32 ath12k_dp_tx_get_vdev_bank_config(struct ath12k_base *ab, struct ath12k_vif *arvif)
316 {
317 u32 bank_config = 0;
318
319 /* Only valid for raw frames with HW crypto enabled.
320 * With SW crypto, mac80211 sets key per packet
321 */
322 if (arvif->tx_encap_type == HAL_TCL_ENCAP_TYPE_RAW &&
323 test_bit(ATH12K_FLAG_HW_CRYPTO_DISABLED, &ab->dev_flags))
324 bank_config |=
325 u32_encode_bits(ath12k_dp_tx_get_encrypt_type(arvif->key_cipher),
326 HAL_TX_BANK_CONFIG_ENCRYPT_TYPE);
327
328 bank_config |= u32_encode_bits(arvif->tx_encap_type,
329 HAL_TX_BANK_CONFIG_ENCAP_TYPE);
330 bank_config |= u32_encode_bits(0, HAL_TX_BANK_CONFIG_SRC_BUFFER_SWAP) |
331 u32_encode_bits(0, HAL_TX_BANK_CONFIG_LINK_META_SWAP) |
332 u32_encode_bits(0, HAL_TX_BANK_CONFIG_EPD);
333
334 /* only valid if idx_lookup_override is not set in tcl_data_cmd */
335 bank_config |= u32_encode_bits(0, HAL_TX_BANK_CONFIG_INDEX_LOOKUP_EN);
336
337 bank_config |= u32_encode_bits(arvif->hal_addr_search_flags & HAL_TX_ADDRX_EN,
338 HAL_TX_BANK_CONFIG_ADDRX_EN) |
339 u32_encode_bits(!!(arvif->hal_addr_search_flags &
340 HAL_TX_ADDRY_EN),
341 HAL_TX_BANK_CONFIG_ADDRY_EN);
342
343 bank_config |= u32_encode_bits(ieee80211_vif_is_mesh(arvif->vif) ? 3 : 0,
344 HAL_TX_BANK_CONFIG_MESH_EN) |
345 u32_encode_bits(arvif->vdev_id_check_en,
346 HAL_TX_BANK_CONFIG_VDEV_ID_CHECK_EN);
347
348 bank_config |= u32_encode_bits(0, HAL_TX_BANK_CONFIG_DSCP_TIP_MAP_ID);
349
350 return bank_config;
351 }
352
ath12k_dp_tx_get_bank_profile(struct ath12k_base * ab,struct ath12k_vif * arvif,struct ath12k_dp * dp)353 static int ath12k_dp_tx_get_bank_profile(struct ath12k_base *ab, struct ath12k_vif *arvif,
354 struct ath12k_dp *dp)
355 {
356 int bank_id = DP_INVALID_BANK_ID;
357 int i;
358 u32 bank_config;
359 bool configure_register = false;
360
361 /* convert vdev params into hal_tx_bank_config */
362 bank_config = ath12k_dp_tx_get_vdev_bank_config(ab, arvif);
363
364 spin_lock_bh(&dp->tx_bank_lock);
365 /* TODO: implement using idr kernel framework*/
366 for (i = 0; i < dp->num_bank_profiles; i++) {
367 if (dp->bank_profiles[i].is_configured &&
368 (dp->bank_profiles[i].bank_config ^ bank_config) == 0) {
369 bank_id = i;
370 goto inc_ref_and_return;
371 }
372 if (!dp->bank_profiles[i].is_configured ||
373 !dp->bank_profiles[i].num_users) {
374 bank_id = i;
375 goto configure_and_return;
376 }
377 }
378
379 if (bank_id == DP_INVALID_BANK_ID) {
380 spin_unlock_bh(&dp->tx_bank_lock);
381 ath12k_err(ab, "unable to find TX bank!");
382 return bank_id;
383 }
384
385 configure_and_return:
386 dp->bank_profiles[bank_id].is_configured = true;
387 dp->bank_profiles[bank_id].bank_config = bank_config;
388 configure_register = true;
389 inc_ref_and_return:
390 dp->bank_profiles[bank_id].num_users++;
391 spin_unlock_bh(&dp->tx_bank_lock);
392
393 if (configure_register)
394 ath12k_hal_tx_configure_bank_register(ab, bank_config, bank_id);
395
396 ath12k_dbg(ab, ATH12K_DBG_DP_HTT, "dp_htt tcl bank_id %d input 0x%x match 0x%x num_users %u",
397 bank_id, bank_config, dp->bank_profiles[bank_id].bank_config,
398 dp->bank_profiles[bank_id].num_users);
399
400 return bank_id;
401 }
402
ath12k_dp_tx_put_bank_profile(struct ath12k_dp * dp,u8 bank_id)403 void ath12k_dp_tx_put_bank_profile(struct ath12k_dp *dp, u8 bank_id)
404 {
405 spin_lock_bh(&dp->tx_bank_lock);
406 dp->bank_profiles[bank_id].num_users--;
407 spin_unlock_bh(&dp->tx_bank_lock);
408 }
409
ath12k_dp_deinit_bank_profiles(struct ath12k_base * ab)410 static void ath12k_dp_deinit_bank_profiles(struct ath12k_base *ab)
411 {
412 struct ath12k_dp *dp = &ab->dp;
413
414 kfree(dp->bank_profiles);
415 dp->bank_profiles = NULL;
416 }
417
ath12k_dp_init_bank_profiles(struct ath12k_base * ab)418 static int ath12k_dp_init_bank_profiles(struct ath12k_base *ab)
419 {
420 struct ath12k_dp *dp = &ab->dp;
421 u32 num_tcl_banks = ab->hw_params->num_tcl_banks;
422 int i;
423
424 dp->num_bank_profiles = num_tcl_banks;
425 dp->bank_profiles = kmalloc_array(num_tcl_banks,
426 sizeof(struct ath12k_dp_tx_bank_profile),
427 GFP_KERNEL);
428 if (!dp->bank_profiles)
429 return -ENOMEM;
430
431 spin_lock_init(&dp->tx_bank_lock);
432
433 for (i = 0; i < num_tcl_banks; i++) {
434 dp->bank_profiles[i].is_configured = false;
435 dp->bank_profiles[i].num_users = 0;
436 }
437
438 return 0;
439 }
440
ath12k_dp_srng_common_cleanup(struct ath12k_base * ab)441 static void ath12k_dp_srng_common_cleanup(struct ath12k_base *ab)
442 {
443 struct ath12k_dp *dp = &ab->dp;
444 int i;
445
446 ath12k_dp_srng_cleanup(ab, &dp->reo_status_ring);
447 ath12k_dp_srng_cleanup(ab, &dp->reo_cmd_ring);
448 ath12k_dp_srng_cleanup(ab, &dp->reo_except_ring);
449 ath12k_dp_srng_cleanup(ab, &dp->rx_rel_ring);
450 ath12k_dp_srng_cleanup(ab, &dp->reo_reinject_ring);
451 for (i = 0; i < ab->hw_params->max_tx_ring; i++) {
452 ath12k_dp_srng_cleanup(ab, &dp->tx_ring[i].tcl_comp_ring);
453 ath12k_dp_srng_cleanup(ab, &dp->tx_ring[i].tcl_data_ring);
454 }
455 ath12k_dp_srng_cleanup(ab, &dp->tcl_status_ring);
456 ath12k_dp_srng_cleanup(ab, &dp->tcl_cmd_ring);
457 ath12k_dp_srng_cleanup(ab, &dp->wbm_desc_rel_ring);
458 }
459
ath12k_dp_srng_common_setup(struct ath12k_base * ab)460 static int ath12k_dp_srng_common_setup(struct ath12k_base *ab)
461 {
462 struct ath12k_dp *dp = &ab->dp;
463 const struct ath12k_hal_tcl_to_wbm_rbm_map *map;
464 struct hal_srng *srng;
465 int i, ret, tx_comp_ring_num;
466 u32 ring_hash_map;
467
468 ret = ath12k_dp_srng_setup(ab, &dp->wbm_desc_rel_ring,
469 HAL_SW2WBM_RELEASE, 0, 0,
470 DP_WBM_RELEASE_RING_SIZE);
471 if (ret) {
472 ath12k_warn(ab, "failed to set up wbm2sw_release ring :%d\n",
473 ret);
474 goto err;
475 }
476
477 ret = ath12k_dp_srng_setup(ab, &dp->tcl_cmd_ring, HAL_TCL_CMD, 0, 0,
478 DP_TCL_CMD_RING_SIZE);
479 if (ret) {
480 ath12k_warn(ab, "failed to set up tcl_cmd ring :%d\n", ret);
481 goto err;
482 }
483
484 ret = ath12k_dp_srng_setup(ab, &dp->tcl_status_ring, HAL_TCL_STATUS,
485 0, 0, DP_TCL_STATUS_RING_SIZE);
486 if (ret) {
487 ath12k_warn(ab, "failed to set up tcl_status ring :%d\n", ret);
488 goto err;
489 }
490
491 for (i = 0; i < ab->hw_params->max_tx_ring; i++) {
492 map = ab->hw_params->hal_ops->tcl_to_wbm_rbm_map;
493 tx_comp_ring_num = map[i].wbm_ring_num;
494
495 ret = ath12k_dp_srng_setup(ab, &dp->tx_ring[i].tcl_data_ring,
496 HAL_TCL_DATA, i, 0,
497 DP_TCL_DATA_RING_SIZE);
498 if (ret) {
499 ath12k_warn(ab, "failed to set up tcl_data ring (%d) :%d\n",
500 i, ret);
501 goto err;
502 }
503
504 ret = ath12k_dp_srng_setup(ab, &dp->tx_ring[i].tcl_comp_ring,
505 HAL_WBM2SW_RELEASE, tx_comp_ring_num, 0,
506 DP_TX_COMP_RING_SIZE);
507 if (ret) {
508 ath12k_warn(ab, "failed to set up tcl_comp ring (%d) :%d\n",
509 tx_comp_ring_num, ret);
510 goto err;
511 }
512 }
513
514 ret = ath12k_dp_srng_setup(ab, &dp->reo_reinject_ring, HAL_REO_REINJECT,
515 0, 0, DP_REO_REINJECT_RING_SIZE);
516 if (ret) {
517 ath12k_warn(ab, "failed to set up reo_reinject ring :%d\n",
518 ret);
519 goto err;
520 }
521
522 ret = ath12k_dp_srng_setup(ab, &dp->rx_rel_ring, HAL_WBM2SW_RELEASE,
523 HAL_WBM2SW_REL_ERR_RING_NUM, 0,
524 DP_RX_RELEASE_RING_SIZE);
525 if (ret) {
526 ath12k_warn(ab, "failed to set up rx_rel ring :%d\n", ret);
527 goto err;
528 }
529
530 ret = ath12k_dp_srng_setup(ab, &dp->reo_except_ring, HAL_REO_EXCEPTION,
531 0, 0, DP_REO_EXCEPTION_RING_SIZE);
532 if (ret) {
533 ath12k_warn(ab, "failed to set up reo_exception ring :%d\n",
534 ret);
535 goto err;
536 }
537
538 ret = ath12k_dp_srng_setup(ab, &dp->reo_cmd_ring, HAL_REO_CMD,
539 0, 0, DP_REO_CMD_RING_SIZE);
540 if (ret) {
541 ath12k_warn(ab, "failed to set up reo_cmd ring :%d\n", ret);
542 goto err;
543 }
544
545 srng = &ab->hal.srng_list[dp->reo_cmd_ring.ring_id];
546 ath12k_hal_reo_init_cmd_ring(ab, srng);
547
548 ret = ath12k_dp_srng_setup(ab, &dp->reo_status_ring, HAL_REO_STATUS,
549 0, 0, DP_REO_STATUS_RING_SIZE);
550 if (ret) {
551 ath12k_warn(ab, "failed to set up reo_status ring :%d\n", ret);
552 goto err;
553 }
554
555 /* When hash based routing of rx packet is enabled, 32 entries to map
556 * the hash values to the ring will be configured. Each hash entry uses
557 * four bits to map to a particular ring. The ring mapping will be
558 * 0:TCL, 1:SW1, 2:SW2, 3:SW3, 4:SW4, 5:Release, 6:FW and 7:SW5
559 * 8:SW6, 9:SW7, 10:SW8, 11:Not used.
560 */
561 ring_hash_map = HAL_HASH_ROUTING_RING_SW1 |
562 HAL_HASH_ROUTING_RING_SW2 << 4 |
563 HAL_HASH_ROUTING_RING_SW3 << 8 |
564 HAL_HASH_ROUTING_RING_SW4 << 12 |
565 HAL_HASH_ROUTING_RING_SW1 << 16 |
566 HAL_HASH_ROUTING_RING_SW2 << 20 |
567 HAL_HASH_ROUTING_RING_SW3 << 24 |
568 HAL_HASH_ROUTING_RING_SW4 << 28;
569
570 ath12k_hal_reo_hw_setup(ab, ring_hash_map);
571
572 return 0;
573
574 err:
575 ath12k_dp_srng_common_cleanup(ab);
576
577 return ret;
578 }
579
ath12k_dp_scatter_idle_link_desc_cleanup(struct ath12k_base * ab)580 static void ath12k_dp_scatter_idle_link_desc_cleanup(struct ath12k_base *ab)
581 {
582 struct ath12k_dp *dp = &ab->dp;
583 struct hal_wbm_idle_scatter_list *slist = dp->scatter_list;
584 int i;
585
586 for (i = 0; i < DP_IDLE_SCATTER_BUFS_MAX; i++) {
587 if (!slist[i].vaddr)
588 continue;
589
590 dma_free_coherent(ab->dev, HAL_WBM_IDLE_SCATTER_BUF_SIZE_MAX,
591 slist[i].vaddr, slist[i].paddr);
592 slist[i].vaddr = NULL;
593 }
594 }
595
ath12k_dp_scatter_idle_link_desc_setup(struct ath12k_base * ab,int size,u32 n_link_desc_bank,u32 n_link_desc,u32 last_bank_sz)596 static int ath12k_dp_scatter_idle_link_desc_setup(struct ath12k_base *ab,
597 int size,
598 u32 n_link_desc_bank,
599 u32 n_link_desc,
600 u32 last_bank_sz)
601 {
602 struct ath12k_dp *dp = &ab->dp;
603 struct dp_link_desc_bank *link_desc_banks = dp->link_desc_banks;
604 struct hal_wbm_idle_scatter_list *slist = dp->scatter_list;
605 u32 n_entries_per_buf;
606 int num_scatter_buf, scatter_idx;
607 struct hal_wbm_link_desc *scatter_buf;
608 int align_bytes, n_entries;
609 dma_addr_t paddr;
610 int rem_entries;
611 int i;
612 int ret = 0;
613 u32 end_offset, cookie;
614
615 n_entries_per_buf = HAL_WBM_IDLE_SCATTER_BUF_SIZE /
616 ath12k_hal_srng_get_entrysize(ab, HAL_WBM_IDLE_LINK);
617 num_scatter_buf = DIV_ROUND_UP(size, HAL_WBM_IDLE_SCATTER_BUF_SIZE);
618
619 if (num_scatter_buf > DP_IDLE_SCATTER_BUFS_MAX)
620 return -EINVAL;
621
622 for (i = 0; i < num_scatter_buf; i++) {
623 slist[i].vaddr = dma_alloc_coherent(ab->dev,
624 HAL_WBM_IDLE_SCATTER_BUF_SIZE_MAX,
625 &slist[i].paddr, GFP_KERNEL);
626 if (!slist[i].vaddr) {
627 ret = -ENOMEM;
628 goto err;
629 }
630 }
631
632 scatter_idx = 0;
633 scatter_buf = slist[scatter_idx].vaddr;
634 rem_entries = n_entries_per_buf;
635
636 for (i = 0; i < n_link_desc_bank; i++) {
637 align_bytes = link_desc_banks[i].vaddr -
638 link_desc_banks[i].vaddr_unaligned;
639 n_entries = (DP_LINK_DESC_ALLOC_SIZE_THRESH - align_bytes) /
640 HAL_LINK_DESC_SIZE;
641 paddr = link_desc_banks[i].paddr;
642 while (n_entries) {
643 cookie = DP_LINK_DESC_COOKIE_SET(n_entries, i);
644 ath12k_hal_set_link_desc_addr(scatter_buf, cookie, paddr);
645 n_entries--;
646 paddr += HAL_LINK_DESC_SIZE;
647 if (rem_entries) {
648 rem_entries--;
649 scatter_buf++;
650 continue;
651 }
652
653 rem_entries = n_entries_per_buf;
654 scatter_idx++;
655 scatter_buf = slist[scatter_idx].vaddr;
656 }
657 }
658
659 end_offset = (scatter_buf - slist[scatter_idx].vaddr) *
660 sizeof(struct hal_wbm_link_desc);
661 ath12k_hal_setup_link_idle_list(ab, slist, num_scatter_buf,
662 n_link_desc, end_offset);
663
664 return 0;
665
666 err:
667 ath12k_dp_scatter_idle_link_desc_cleanup(ab);
668
669 return ret;
670 }
671
672 static void
ath12k_dp_link_desc_bank_free(struct ath12k_base * ab,struct dp_link_desc_bank * link_desc_banks)673 ath12k_dp_link_desc_bank_free(struct ath12k_base *ab,
674 struct dp_link_desc_bank *link_desc_banks)
675 {
676 int i;
677
678 for (i = 0; i < DP_LINK_DESC_BANKS_MAX; i++) {
679 if (link_desc_banks[i].vaddr_unaligned) {
680 dma_free_coherent(ab->dev,
681 link_desc_banks[i].size,
682 link_desc_banks[i].vaddr_unaligned,
683 link_desc_banks[i].paddr_unaligned);
684 link_desc_banks[i].vaddr_unaligned = NULL;
685 }
686 }
687 }
688
ath12k_dp_link_desc_bank_alloc(struct ath12k_base * ab,struct dp_link_desc_bank * desc_bank,int n_link_desc_bank,int last_bank_sz)689 static int ath12k_dp_link_desc_bank_alloc(struct ath12k_base *ab,
690 struct dp_link_desc_bank *desc_bank,
691 int n_link_desc_bank,
692 int last_bank_sz)
693 {
694 struct ath12k_dp *dp = &ab->dp;
695 int i;
696 int ret = 0;
697 int desc_sz = DP_LINK_DESC_ALLOC_SIZE_THRESH;
698
699 for (i = 0; i < n_link_desc_bank; i++) {
700 if (i == (n_link_desc_bank - 1) && last_bank_sz)
701 desc_sz = last_bank_sz;
702
703 desc_bank[i].vaddr_unaligned =
704 dma_alloc_coherent(ab->dev, desc_sz,
705 &desc_bank[i].paddr_unaligned,
706 GFP_KERNEL);
707 if (!desc_bank[i].vaddr_unaligned) {
708 ret = -ENOMEM;
709 goto err;
710 }
711
712 desc_bank[i].vaddr = PTR_ALIGN(desc_bank[i].vaddr_unaligned,
713 HAL_LINK_DESC_ALIGN);
714 desc_bank[i].paddr = desc_bank[i].paddr_unaligned +
715 ((unsigned long)desc_bank[i].vaddr -
716 (unsigned long)desc_bank[i].vaddr_unaligned);
717 desc_bank[i].size = desc_sz;
718 }
719
720 return 0;
721
722 err:
723 ath12k_dp_link_desc_bank_free(ab, dp->link_desc_banks);
724
725 return ret;
726 }
727
ath12k_dp_link_desc_cleanup(struct ath12k_base * ab,struct dp_link_desc_bank * desc_bank,u32 ring_type,struct dp_srng * ring)728 void ath12k_dp_link_desc_cleanup(struct ath12k_base *ab,
729 struct dp_link_desc_bank *desc_bank,
730 u32 ring_type, struct dp_srng *ring)
731 {
732 ath12k_dp_link_desc_bank_free(ab, desc_bank);
733
734 if (ring_type != HAL_RXDMA_MONITOR_DESC) {
735 ath12k_dp_srng_cleanup(ab, ring);
736 ath12k_dp_scatter_idle_link_desc_cleanup(ab);
737 }
738 }
739
ath12k_wbm_idle_ring_setup(struct ath12k_base * ab,u32 * n_link_desc)740 static int ath12k_wbm_idle_ring_setup(struct ath12k_base *ab, u32 *n_link_desc)
741 {
742 struct ath12k_dp *dp = &ab->dp;
743 u32 n_mpdu_link_desc, n_mpdu_queue_desc;
744 u32 n_tx_msdu_link_desc, n_rx_msdu_link_desc;
745 int ret = 0;
746
747 n_mpdu_link_desc = (DP_NUM_TIDS_MAX * DP_AVG_MPDUS_PER_TID_MAX) /
748 HAL_NUM_MPDUS_PER_LINK_DESC;
749
750 n_mpdu_queue_desc = n_mpdu_link_desc /
751 HAL_NUM_MPDU_LINKS_PER_QUEUE_DESC;
752
753 n_tx_msdu_link_desc = (DP_NUM_TIDS_MAX * DP_AVG_FLOWS_PER_TID *
754 DP_AVG_MSDUS_PER_FLOW) /
755 HAL_NUM_TX_MSDUS_PER_LINK_DESC;
756
757 n_rx_msdu_link_desc = (DP_NUM_TIDS_MAX * DP_AVG_MPDUS_PER_TID_MAX *
758 DP_AVG_MSDUS_PER_MPDU) /
759 HAL_NUM_RX_MSDUS_PER_LINK_DESC;
760
761 *n_link_desc = n_mpdu_link_desc + n_mpdu_queue_desc +
762 n_tx_msdu_link_desc + n_rx_msdu_link_desc;
763
764 if (*n_link_desc & (*n_link_desc - 1))
765 *n_link_desc = 1 << fls(*n_link_desc);
766
767 ret = ath12k_dp_srng_setup(ab, &dp->wbm_idle_ring,
768 HAL_WBM_IDLE_LINK, 0, 0, *n_link_desc);
769 if (ret) {
770 ath12k_warn(ab, "failed to setup wbm_idle_ring: %d\n", ret);
771 return ret;
772 }
773 return ret;
774 }
775
ath12k_dp_link_desc_setup(struct ath12k_base * ab,struct dp_link_desc_bank * link_desc_banks,u32 ring_type,struct hal_srng * srng,u32 n_link_desc)776 int ath12k_dp_link_desc_setup(struct ath12k_base *ab,
777 struct dp_link_desc_bank *link_desc_banks,
778 u32 ring_type, struct hal_srng *srng,
779 u32 n_link_desc)
780 {
781 u32 tot_mem_sz;
782 u32 n_link_desc_bank, last_bank_sz;
783 u32 entry_sz, align_bytes, n_entries;
784 struct hal_wbm_link_desc *desc;
785 u32 paddr;
786 int i, ret;
787 u32 cookie;
788
789 tot_mem_sz = n_link_desc * HAL_LINK_DESC_SIZE;
790 tot_mem_sz += HAL_LINK_DESC_ALIGN;
791
792 if (tot_mem_sz <= DP_LINK_DESC_ALLOC_SIZE_THRESH) {
793 n_link_desc_bank = 1;
794 last_bank_sz = tot_mem_sz;
795 } else {
796 n_link_desc_bank = tot_mem_sz /
797 (DP_LINK_DESC_ALLOC_SIZE_THRESH -
798 HAL_LINK_DESC_ALIGN);
799 last_bank_sz = tot_mem_sz %
800 (DP_LINK_DESC_ALLOC_SIZE_THRESH -
801 HAL_LINK_DESC_ALIGN);
802
803 if (last_bank_sz)
804 n_link_desc_bank += 1;
805 }
806
807 if (n_link_desc_bank > DP_LINK_DESC_BANKS_MAX)
808 return -EINVAL;
809
810 ret = ath12k_dp_link_desc_bank_alloc(ab, link_desc_banks,
811 n_link_desc_bank, last_bank_sz);
812 if (ret)
813 return ret;
814
815 /* Setup link desc idle list for HW internal usage */
816 entry_sz = ath12k_hal_srng_get_entrysize(ab, ring_type);
817 tot_mem_sz = entry_sz * n_link_desc;
818
819 /* Setup scatter desc list when the total memory requirement is more */
820 if (tot_mem_sz > DP_LINK_DESC_ALLOC_SIZE_THRESH &&
821 ring_type != HAL_RXDMA_MONITOR_DESC) {
822 ret = ath12k_dp_scatter_idle_link_desc_setup(ab, tot_mem_sz,
823 n_link_desc_bank,
824 n_link_desc,
825 last_bank_sz);
826 if (ret) {
827 ath12k_warn(ab, "failed to setup scatting idle list descriptor :%d\n",
828 ret);
829 goto fail_desc_bank_free;
830 }
831
832 return 0;
833 }
834
835 spin_lock_bh(&srng->lock);
836
837 ath12k_hal_srng_access_begin(ab, srng);
838
839 for (i = 0; i < n_link_desc_bank; i++) {
840 align_bytes = link_desc_banks[i].vaddr -
841 link_desc_banks[i].vaddr_unaligned;
842 n_entries = (link_desc_banks[i].size - align_bytes) /
843 HAL_LINK_DESC_SIZE;
844 paddr = link_desc_banks[i].paddr;
845 while (n_entries &&
846 (desc = ath12k_hal_srng_src_get_next_entry(ab, srng))) {
847 cookie = DP_LINK_DESC_COOKIE_SET(n_entries, i);
848 ath12k_hal_set_link_desc_addr(desc,
849 cookie, paddr);
850 n_entries--;
851 paddr += HAL_LINK_DESC_SIZE;
852 }
853 }
854
855 ath12k_hal_srng_access_end(ab, srng);
856
857 spin_unlock_bh(&srng->lock);
858
859 return 0;
860
861 fail_desc_bank_free:
862 ath12k_dp_link_desc_bank_free(ab, link_desc_banks);
863
864 return ret;
865 }
866
ath12k_dp_service_srng(struct ath12k_base * ab,struct ath12k_ext_irq_grp * irq_grp,int budget)867 int ath12k_dp_service_srng(struct ath12k_base *ab,
868 struct ath12k_ext_irq_grp *irq_grp,
869 int budget)
870 {
871 struct napi_struct *napi = &irq_grp->napi;
872 int grp_id = irq_grp->grp_id;
873 int work_done = 0;
874 int i = 0, j;
875 int tot_work_done = 0;
876 enum dp_monitor_mode monitor_mode;
877 u8 ring_mask;
878
879 while (i < ab->hw_params->max_tx_ring) {
880 if (ab->hw_params->ring_mask->tx[grp_id] &
881 BIT(ab->hw_params->hal_ops->tcl_to_wbm_rbm_map[i].wbm_ring_num))
882 ath12k_dp_tx_completion_handler(ab, i);
883 i++;
884 }
885
886 if (ab->hw_params->ring_mask->rx_err[grp_id]) {
887 work_done = ath12k_dp_rx_process_err(ab, napi, budget);
888 budget -= work_done;
889 tot_work_done += work_done;
890 if (budget <= 0)
891 goto done;
892 }
893
894 if (ab->hw_params->ring_mask->rx_wbm_rel[grp_id]) {
895 work_done = ath12k_dp_rx_process_wbm_err(ab,
896 napi,
897 budget);
898 budget -= work_done;
899 tot_work_done += work_done;
900
901 if (budget <= 0)
902 goto done;
903 }
904
905 if (ab->hw_params->ring_mask->rx[grp_id]) {
906 i = fls(ab->hw_params->ring_mask->rx[grp_id]) - 1;
907 work_done = ath12k_dp_rx_process(ab, i, napi,
908 budget);
909 budget -= work_done;
910 tot_work_done += work_done;
911 if (budget <= 0)
912 goto done;
913 }
914
915 if (ab->hw_params->ring_mask->rx_mon_dest[grp_id]) {
916 monitor_mode = ATH12K_DP_RX_MONITOR_MODE;
917 ring_mask = ab->hw_params->ring_mask->rx_mon_dest[grp_id];
918 for (i = 0; i < ab->num_radios; i++) {
919 for (j = 0; j < ab->hw_params->num_rxmda_per_pdev; j++) {
920 int id = i * ab->hw_params->num_rxmda_per_pdev + j;
921
922 if (ring_mask & BIT(id)) {
923 work_done =
924 ath12k_dp_mon_process_ring(ab, id, napi, budget,
925 monitor_mode);
926 budget -= work_done;
927 tot_work_done += work_done;
928
929 if (budget <= 0)
930 goto done;
931 }
932 }
933 }
934 }
935
936 if (ab->hw_params->ring_mask->tx_mon_dest[grp_id]) {
937 monitor_mode = ATH12K_DP_TX_MONITOR_MODE;
938 ring_mask = ab->hw_params->ring_mask->tx_mon_dest[grp_id];
939 for (i = 0; i < ab->num_radios; i++) {
940 for (j = 0; j < ab->hw_params->num_rxmda_per_pdev; j++) {
941 int id = i * ab->hw_params->num_rxmda_per_pdev + j;
942
943 if (ring_mask & BIT(id)) {
944 work_done =
945 ath12k_dp_mon_process_ring(ab, id, napi, budget,
946 monitor_mode);
947 budget -= work_done;
948 tot_work_done += work_done;
949
950 if (budget <= 0)
951 goto done;
952 }
953 }
954 }
955 }
956
957 if (ab->hw_params->ring_mask->reo_status[grp_id])
958 ath12k_dp_rx_process_reo_status(ab);
959
960 if (ab->hw_params->ring_mask->host2rxdma[grp_id]) {
961 struct ath12k_dp *dp = &ab->dp;
962 struct dp_rxdma_ring *rx_ring = &dp->rx_refill_buf_ring;
963
964 ath12k_dp_rx_bufs_replenish(ab, 0, rx_ring, 0,
965 ab->hw_params->hal_params->rx_buf_rbm,
966 true);
967 }
968
969 /* TODO: Implement handler for other interrupts */
970
971 done:
972 return tot_work_done;
973 }
974
ath12k_dp_pdev_free(struct ath12k_base * ab)975 void ath12k_dp_pdev_free(struct ath12k_base *ab)
976 {
977 int i;
978
979 del_timer_sync(&ab->mon_reap_timer);
980
981 for (i = 0; i < ab->num_radios; i++)
982 ath12k_dp_rx_pdev_free(ab, i);
983 }
984
ath12k_dp_pdev_pre_alloc(struct ath12k_base * ab)985 void ath12k_dp_pdev_pre_alloc(struct ath12k_base *ab)
986 {
987 struct ath12k *ar;
988 struct ath12k_pdev_dp *dp;
989 int i;
990
991 for (i = 0; i < ab->num_radios; i++) {
992 ar = ab->pdevs[i].ar;
993 dp = &ar->dp;
994 dp->mac_id = i;
995 atomic_set(&dp->num_tx_pending, 0);
996 init_waitqueue_head(&dp->tx_empty_waitq);
997
998 /* TODO: Add any RXDMA setup required per pdev */
999 }
1000 }
1001
ath12k_dp_service_mon_ring(struct timer_list * t)1002 static void ath12k_dp_service_mon_ring(struct timer_list *t)
1003 {
1004 struct ath12k_base *ab = from_timer(ab, t, mon_reap_timer);
1005 int i;
1006
1007 for (i = 0; i < ab->hw_params->num_rxmda_per_pdev; i++)
1008 ath12k_dp_mon_process_ring(ab, i, NULL, DP_MON_SERVICE_BUDGET,
1009 ATH12K_DP_RX_MONITOR_MODE);
1010
1011 mod_timer(&ab->mon_reap_timer, jiffies +
1012 msecs_to_jiffies(ATH12K_MON_TIMER_INTERVAL));
1013 }
1014
ath12k_dp_mon_reap_timer_init(struct ath12k_base * ab)1015 static void ath12k_dp_mon_reap_timer_init(struct ath12k_base *ab)
1016 {
1017 if (ab->hw_params->rxdma1_enable)
1018 return;
1019
1020 timer_setup(&ab->mon_reap_timer, ath12k_dp_service_mon_ring, 0);
1021 }
1022
ath12k_dp_pdev_alloc(struct ath12k_base * ab)1023 int ath12k_dp_pdev_alloc(struct ath12k_base *ab)
1024 {
1025 struct ath12k *ar;
1026 int ret;
1027 int i;
1028
1029 ret = ath12k_dp_rx_htt_setup(ab);
1030 if (ret)
1031 goto out;
1032
1033 ath12k_dp_mon_reap_timer_init(ab);
1034
1035 /* TODO: Per-pdev rx ring unlike tx ring which is mapped to different AC's */
1036 for (i = 0; i < ab->num_radios; i++) {
1037 ar = ab->pdevs[i].ar;
1038 ret = ath12k_dp_rx_pdev_alloc(ab, i);
1039 if (ret) {
1040 ath12k_warn(ab, "failed to allocate pdev rx for pdev_id :%d\n",
1041 i);
1042 goto err;
1043 }
1044 ret = ath12k_dp_rx_pdev_mon_attach(ar);
1045 if (ret) {
1046 ath12k_warn(ab, "failed to initialize mon pdev %d\n", i);
1047 goto err;
1048 }
1049 }
1050
1051 return 0;
1052 err:
1053 ath12k_dp_pdev_free(ab);
1054 out:
1055 return ret;
1056 }
1057
ath12k_dp_htt_connect(struct ath12k_dp * dp)1058 int ath12k_dp_htt_connect(struct ath12k_dp *dp)
1059 {
1060 struct ath12k_htc_svc_conn_req conn_req = {0};
1061 struct ath12k_htc_svc_conn_resp conn_resp = {0};
1062 int status;
1063
1064 conn_req.ep_ops.ep_tx_complete = ath12k_dp_htt_htc_tx_complete;
1065 conn_req.ep_ops.ep_rx_complete = ath12k_dp_htt_htc_t2h_msg_handler;
1066
1067 /* connect to control service */
1068 conn_req.service_id = ATH12K_HTC_SVC_ID_HTT_DATA_MSG;
1069
1070 status = ath12k_htc_connect_service(&dp->ab->htc, &conn_req,
1071 &conn_resp);
1072
1073 if (status)
1074 return status;
1075
1076 dp->eid = conn_resp.eid;
1077
1078 return 0;
1079 }
1080
ath12k_dp_update_vdev_search(struct ath12k_vif * arvif)1081 static void ath12k_dp_update_vdev_search(struct ath12k_vif *arvif)
1082 {
1083 switch (arvif->vdev_type) {
1084 case WMI_VDEV_TYPE_STA:
1085 /* TODO: Verify the search type and flags since ast hash
1086 * is not part of peer mapv3
1087 */
1088 arvif->hal_addr_search_flags = HAL_TX_ADDRY_EN;
1089 arvif->search_type = HAL_TX_ADDR_SEARCH_DEFAULT;
1090 break;
1091 case WMI_VDEV_TYPE_AP:
1092 case WMI_VDEV_TYPE_IBSS:
1093 arvif->hal_addr_search_flags = HAL_TX_ADDRX_EN;
1094 arvif->search_type = HAL_TX_ADDR_SEARCH_DEFAULT;
1095 break;
1096 case WMI_VDEV_TYPE_MONITOR:
1097 default:
1098 return;
1099 }
1100 }
1101
ath12k_dp_vdev_tx_attach(struct ath12k * ar,struct ath12k_vif * arvif)1102 void ath12k_dp_vdev_tx_attach(struct ath12k *ar, struct ath12k_vif *arvif)
1103 {
1104 struct ath12k_base *ab = ar->ab;
1105
1106 arvif->tcl_metadata |= u32_encode_bits(1, HTT_TCL_META_DATA_TYPE) |
1107 u32_encode_bits(arvif->vdev_id,
1108 HTT_TCL_META_DATA_VDEV_ID) |
1109 u32_encode_bits(ar->pdev->pdev_id,
1110 HTT_TCL_META_DATA_PDEV_ID);
1111
1112 /* set HTT extension valid bit to 0 by default */
1113 arvif->tcl_metadata &= ~HTT_TCL_META_DATA_VALID_HTT;
1114
1115 ath12k_dp_update_vdev_search(arvif);
1116 arvif->vdev_id_check_en = true;
1117 arvif->bank_id = ath12k_dp_tx_get_bank_profile(ab, arvif, &ab->dp);
1118
1119 /* TODO: error path for bank id failure */
1120 if (arvif->bank_id == DP_INVALID_BANK_ID) {
1121 ath12k_err(ar->ab, "Failed to initialize DP TX Banks");
1122 return;
1123 }
1124 }
1125
ath12k_dp_cc_cleanup(struct ath12k_base * ab)1126 static void ath12k_dp_cc_cleanup(struct ath12k_base *ab)
1127 {
1128 struct ath12k_rx_desc_info *desc_info, *tmp;
1129 struct ath12k_tx_desc_info *tx_desc_info, *tmp1;
1130 struct ath12k_dp *dp = &ab->dp;
1131 struct sk_buff *skb;
1132 int i;
1133 u32 pool_id, tx_spt_page;
1134
1135 if (!dp->spt_info)
1136 return;
1137
1138 /* RX Descriptor cleanup */
1139 spin_lock_bh(&dp->rx_desc_lock);
1140
1141 list_for_each_entry_safe(desc_info, tmp, &dp->rx_desc_used_list, list) {
1142 list_del(&desc_info->list);
1143 skb = desc_info->skb;
1144
1145 if (!skb)
1146 continue;
1147
1148 dma_unmap_single(ab->dev, ATH12K_SKB_RXCB(skb)->paddr,
1149 skb->len + skb_tailroom(skb), DMA_FROM_DEVICE);
1150 dev_kfree_skb_any(skb);
1151 }
1152
1153 for (i = 0; i < ATH12K_NUM_RX_SPT_PAGES; i++) {
1154 if (!dp->spt_info->rxbaddr[i])
1155 continue;
1156
1157 kfree(dp->spt_info->rxbaddr[i]);
1158 dp->spt_info->rxbaddr[i] = NULL;
1159 }
1160
1161 spin_unlock_bh(&dp->rx_desc_lock);
1162
1163 /* TX Descriptor cleanup */
1164 for (i = 0; i < ATH12K_HW_MAX_QUEUES; i++) {
1165 spin_lock_bh(&dp->tx_desc_lock[i]);
1166
1167 list_for_each_entry_safe(tx_desc_info, tmp1, &dp->tx_desc_used_list[i],
1168 list) {
1169 list_del(&tx_desc_info->list);
1170 skb = tx_desc_info->skb;
1171
1172 if (!skb)
1173 continue;
1174
1175 dma_unmap_single(ab->dev, ATH12K_SKB_CB(skb)->paddr,
1176 skb->len, DMA_TO_DEVICE);
1177 dev_kfree_skb_any(skb);
1178 }
1179
1180 spin_unlock_bh(&dp->tx_desc_lock[i]);
1181 }
1182
1183 for (pool_id = 0; pool_id < ATH12K_HW_MAX_QUEUES; pool_id++) {
1184 spin_lock_bh(&dp->tx_desc_lock[pool_id]);
1185
1186 for (i = 0; i < ATH12K_TX_SPT_PAGES_PER_POOL; i++) {
1187 tx_spt_page = i + pool_id * ATH12K_TX_SPT_PAGES_PER_POOL;
1188 if (!dp->spt_info->txbaddr[tx_spt_page])
1189 continue;
1190
1191 kfree(dp->spt_info->txbaddr[tx_spt_page]);
1192 dp->spt_info->txbaddr[tx_spt_page] = NULL;
1193 }
1194
1195 spin_unlock_bh(&dp->tx_desc_lock[pool_id]);
1196 }
1197
1198 /* unmap SPT pages */
1199 for (i = 0; i < dp->num_spt_pages; i++) {
1200 if (!dp->spt_info[i].vaddr)
1201 continue;
1202
1203 dma_free_coherent(ab->dev, ATH12K_PAGE_SIZE,
1204 dp->spt_info[i].vaddr, dp->spt_info[i].paddr);
1205 dp->spt_info[i].vaddr = NULL;
1206 }
1207
1208 kfree(dp->spt_info);
1209 }
1210
ath12k_dp_reoq_lut_cleanup(struct ath12k_base * ab)1211 static void ath12k_dp_reoq_lut_cleanup(struct ath12k_base *ab)
1212 {
1213 struct ath12k_dp *dp = &ab->dp;
1214
1215 if (!ab->hw_params->reoq_lut_support)
1216 return;
1217
1218 if (!dp->reoq_lut.vaddr)
1219 return;
1220
1221 dma_free_coherent(ab->dev, DP_REOQ_LUT_SIZE,
1222 dp->reoq_lut.vaddr, dp->reoq_lut.paddr);
1223 dp->reoq_lut.vaddr = NULL;
1224
1225 ath12k_hif_write32(ab,
1226 HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO1_QDESC_LUT_BASE0(ab), 0);
1227 }
1228
ath12k_dp_free(struct ath12k_base * ab)1229 void ath12k_dp_free(struct ath12k_base *ab)
1230 {
1231 struct ath12k_dp *dp = &ab->dp;
1232 int i;
1233
1234 ath12k_dp_link_desc_cleanup(ab, dp->link_desc_banks,
1235 HAL_WBM_IDLE_LINK, &dp->wbm_idle_ring);
1236
1237 ath12k_dp_cc_cleanup(ab);
1238 ath12k_dp_reoq_lut_cleanup(ab);
1239 ath12k_dp_deinit_bank_profiles(ab);
1240 ath12k_dp_srng_common_cleanup(ab);
1241
1242 ath12k_dp_rx_reo_cmd_list_cleanup(ab);
1243
1244 for (i = 0; i < ab->hw_params->max_tx_ring; i++)
1245 kfree(dp->tx_ring[i].tx_status);
1246
1247 ath12k_dp_rx_free(ab);
1248 /* Deinit any SOC level resource */
1249 }
1250
ath12k_dp_cc_config(struct ath12k_base * ab)1251 void ath12k_dp_cc_config(struct ath12k_base *ab)
1252 {
1253 u32 cmem_base = ab->qmi.dev_mem[ATH12K_QMI_DEVMEM_CMEM_INDEX].start;
1254 u32 reo_base = HAL_SEQ_WCSS_UMAC_REO_REG;
1255 u32 wbm_base = HAL_SEQ_WCSS_UMAC_WBM_REG;
1256 u32 val = 0;
1257
1258 ath12k_hif_write32(ab, reo_base + HAL_REO1_SW_COOKIE_CFG0(ab), cmem_base);
1259
1260 val |= u32_encode_bits(ATH12K_CMEM_ADDR_MSB,
1261 HAL_REO1_SW_COOKIE_CFG_CMEM_BASE_ADDR_MSB) |
1262 u32_encode_bits(ATH12K_CC_PPT_MSB,
1263 HAL_REO1_SW_COOKIE_CFG_COOKIE_PPT_MSB) |
1264 u32_encode_bits(ATH12K_CC_SPT_MSB,
1265 HAL_REO1_SW_COOKIE_CFG_COOKIE_SPT_MSB) |
1266 u32_encode_bits(1, HAL_REO1_SW_COOKIE_CFG_ALIGN) |
1267 u32_encode_bits(1, HAL_REO1_SW_COOKIE_CFG_ENABLE) |
1268 u32_encode_bits(1, HAL_REO1_SW_COOKIE_CFG_GLOBAL_ENABLE);
1269
1270 ath12k_hif_write32(ab, reo_base + HAL_REO1_SW_COOKIE_CFG1(ab), val);
1271
1272 /* Enable HW CC for WBM */
1273 ath12k_hif_write32(ab, wbm_base + HAL_WBM_SW_COOKIE_CFG0, cmem_base);
1274
1275 val = u32_encode_bits(ATH12K_CMEM_ADDR_MSB,
1276 HAL_WBM_SW_COOKIE_CFG_CMEM_BASE_ADDR_MSB) |
1277 u32_encode_bits(ATH12K_CC_PPT_MSB,
1278 HAL_WBM_SW_COOKIE_CFG_COOKIE_PPT_MSB) |
1279 u32_encode_bits(ATH12K_CC_SPT_MSB,
1280 HAL_WBM_SW_COOKIE_CFG_COOKIE_SPT_MSB) |
1281 u32_encode_bits(1, HAL_WBM_SW_COOKIE_CFG_ALIGN);
1282
1283 ath12k_hif_write32(ab, wbm_base + HAL_WBM_SW_COOKIE_CFG1, val);
1284
1285 /* Enable conversion complete indication */
1286 val = ath12k_hif_read32(ab, wbm_base + HAL_WBM_SW_COOKIE_CFG2);
1287 val |= u32_encode_bits(1, HAL_WBM_SW_COOKIE_CFG_RELEASE_PATH_EN) |
1288 u32_encode_bits(1, HAL_WBM_SW_COOKIE_CFG_ERR_PATH_EN) |
1289 u32_encode_bits(1, HAL_WBM_SW_COOKIE_CFG_CONV_IND_EN);
1290
1291 ath12k_hif_write32(ab, wbm_base + HAL_WBM_SW_COOKIE_CFG2, val);
1292
1293 /* Enable Cookie conversion for WBM2SW Rings */
1294 val = ath12k_hif_read32(ab, wbm_base + HAL_WBM_SW_COOKIE_CONVERT_CFG);
1295 val |= u32_encode_bits(1, HAL_WBM_SW_COOKIE_CONV_CFG_GLOBAL_EN) |
1296 ab->hw_params->hal_params->wbm2sw_cc_enable;
1297
1298 ath12k_hif_write32(ab, wbm_base + HAL_WBM_SW_COOKIE_CONVERT_CFG, val);
1299 }
1300
ath12k_dp_cc_cookie_gen(u16 ppt_idx,u16 spt_idx)1301 static u32 ath12k_dp_cc_cookie_gen(u16 ppt_idx, u16 spt_idx)
1302 {
1303 return (u32)ppt_idx << ATH12K_CC_PPT_SHIFT | spt_idx;
1304 }
1305
ath12k_dp_cc_get_desc_addr_ptr(struct ath12k_base * ab,u16 ppt_idx,u16 spt_idx)1306 static inline void *ath12k_dp_cc_get_desc_addr_ptr(struct ath12k_base *ab,
1307 u16 ppt_idx, u16 spt_idx)
1308 {
1309 struct ath12k_dp *dp = &ab->dp;
1310
1311 return dp->spt_info[ppt_idx].vaddr + spt_idx;
1312 }
1313
ath12k_dp_get_rx_desc(struct ath12k_base * ab,u32 cookie)1314 struct ath12k_rx_desc_info *ath12k_dp_get_rx_desc(struct ath12k_base *ab,
1315 u32 cookie)
1316 {
1317 struct ath12k_rx_desc_info **desc_addr_ptr;
1318 u16 ppt_idx, spt_idx;
1319
1320 ppt_idx = u32_get_bits(cookie, ATH12K_DP_CC_COOKIE_PPT);
1321 spt_idx = u32_get_bits(cookie, ATH12k_DP_CC_COOKIE_SPT);
1322
1323 if (ppt_idx > ATH12K_NUM_RX_SPT_PAGES ||
1324 spt_idx > ATH12K_MAX_SPT_ENTRIES)
1325 return NULL;
1326
1327 desc_addr_ptr = ath12k_dp_cc_get_desc_addr_ptr(ab, ppt_idx, spt_idx);
1328
1329 return *desc_addr_ptr;
1330 }
1331
ath12k_dp_get_tx_desc(struct ath12k_base * ab,u32 cookie)1332 struct ath12k_tx_desc_info *ath12k_dp_get_tx_desc(struct ath12k_base *ab,
1333 u32 cookie)
1334 {
1335 struct ath12k_tx_desc_info **desc_addr_ptr;
1336 u16 ppt_idx, spt_idx;
1337
1338 ppt_idx = u32_get_bits(cookie, ATH12K_DP_CC_COOKIE_PPT);
1339 spt_idx = u32_get_bits(cookie, ATH12k_DP_CC_COOKIE_SPT);
1340
1341 if (ppt_idx < ATH12K_NUM_RX_SPT_PAGES ||
1342 ppt_idx > ab->dp.num_spt_pages ||
1343 spt_idx > ATH12K_MAX_SPT_ENTRIES)
1344 return NULL;
1345
1346 desc_addr_ptr = ath12k_dp_cc_get_desc_addr_ptr(ab, ppt_idx, spt_idx);
1347
1348 return *desc_addr_ptr;
1349 }
1350
ath12k_dp_cc_desc_init(struct ath12k_base * ab)1351 static int ath12k_dp_cc_desc_init(struct ath12k_base *ab)
1352 {
1353 struct ath12k_dp *dp = &ab->dp;
1354 struct ath12k_rx_desc_info *rx_descs, **rx_desc_addr;
1355 struct ath12k_tx_desc_info *tx_descs, **tx_desc_addr;
1356 u32 i, j, pool_id, tx_spt_page;
1357 u32 ppt_idx;
1358
1359 spin_lock_bh(&dp->rx_desc_lock);
1360
1361 /* First ATH12K_NUM_RX_SPT_PAGES of allocated SPT pages are used for RX */
1362 for (i = 0; i < ATH12K_NUM_RX_SPT_PAGES; i++) {
1363 rx_descs = kcalloc(ATH12K_MAX_SPT_ENTRIES, sizeof(*rx_descs),
1364 GFP_ATOMIC);
1365
1366 if (!rx_descs) {
1367 spin_unlock_bh(&dp->rx_desc_lock);
1368 return -ENOMEM;
1369 }
1370
1371 dp->spt_info->rxbaddr[i] = &rx_descs[0];
1372
1373 for (j = 0; j < ATH12K_MAX_SPT_ENTRIES; j++) {
1374 rx_descs[j].cookie = ath12k_dp_cc_cookie_gen(i, j);
1375 rx_descs[j].magic = ATH12K_DP_RX_DESC_MAGIC;
1376 list_add_tail(&rx_descs[j].list, &dp->rx_desc_free_list);
1377
1378 /* Update descriptor VA in SPT */
1379 rx_desc_addr = ath12k_dp_cc_get_desc_addr_ptr(ab, i, j);
1380 *rx_desc_addr = &rx_descs[j];
1381 }
1382 }
1383
1384 spin_unlock_bh(&dp->rx_desc_lock);
1385
1386 for (pool_id = 0; pool_id < ATH12K_HW_MAX_QUEUES; pool_id++) {
1387 spin_lock_bh(&dp->tx_desc_lock[pool_id]);
1388 for (i = 0; i < ATH12K_TX_SPT_PAGES_PER_POOL; i++) {
1389 tx_descs = kcalloc(ATH12K_MAX_SPT_ENTRIES, sizeof(*tx_descs),
1390 GFP_ATOMIC);
1391
1392 if (!tx_descs) {
1393 spin_unlock_bh(&dp->tx_desc_lock[pool_id]);
1394 /* Caller takes care of TX pending and RX desc cleanup */
1395 return -ENOMEM;
1396 }
1397
1398 tx_spt_page = i + pool_id * ATH12K_TX_SPT_PAGES_PER_POOL;
1399 dp->spt_info->txbaddr[tx_spt_page] = &tx_descs[0];
1400
1401 for (j = 0; j < ATH12K_MAX_SPT_ENTRIES; j++) {
1402 ppt_idx = ATH12K_NUM_RX_SPT_PAGES + tx_spt_page;
1403 tx_descs[j].desc_id = ath12k_dp_cc_cookie_gen(ppt_idx, j);
1404 tx_descs[j].pool_id = pool_id;
1405 list_add_tail(&tx_descs[j].list,
1406 &dp->tx_desc_free_list[pool_id]);
1407
1408 /* Update descriptor VA in SPT */
1409 tx_desc_addr =
1410 ath12k_dp_cc_get_desc_addr_ptr(ab, ppt_idx, j);
1411 *tx_desc_addr = &tx_descs[j];
1412 }
1413 }
1414 spin_unlock_bh(&dp->tx_desc_lock[pool_id]);
1415 }
1416 return 0;
1417 }
1418
ath12k_dp_cc_init(struct ath12k_base * ab)1419 static int ath12k_dp_cc_init(struct ath12k_base *ab)
1420 {
1421 struct ath12k_dp *dp = &ab->dp;
1422 int i, ret = 0;
1423 u32 cmem_base;
1424
1425 INIT_LIST_HEAD(&dp->rx_desc_free_list);
1426 INIT_LIST_HEAD(&dp->rx_desc_used_list);
1427 spin_lock_init(&dp->rx_desc_lock);
1428
1429 for (i = 0; i < ATH12K_HW_MAX_QUEUES; i++) {
1430 INIT_LIST_HEAD(&dp->tx_desc_free_list[i]);
1431 INIT_LIST_HEAD(&dp->tx_desc_used_list[i]);
1432 spin_lock_init(&dp->tx_desc_lock[i]);
1433 }
1434
1435 dp->num_spt_pages = ATH12K_NUM_SPT_PAGES;
1436 if (dp->num_spt_pages > ATH12K_MAX_PPT_ENTRIES)
1437 dp->num_spt_pages = ATH12K_MAX_PPT_ENTRIES;
1438
1439 dp->spt_info = kcalloc(dp->num_spt_pages, sizeof(struct ath12k_spt_info),
1440 GFP_KERNEL);
1441
1442 if (!dp->spt_info) {
1443 ath12k_warn(ab, "SPT page allocation failure");
1444 return -ENOMEM;
1445 }
1446
1447 cmem_base = ab->qmi.dev_mem[ATH12K_QMI_DEVMEM_CMEM_INDEX].start;
1448
1449 for (i = 0; i < dp->num_spt_pages; i++) {
1450 dp->spt_info[i].vaddr = dma_alloc_coherent(ab->dev,
1451 ATH12K_PAGE_SIZE,
1452 &dp->spt_info[i].paddr,
1453 GFP_KERNEL);
1454
1455 if (!dp->spt_info[i].vaddr) {
1456 ret = -ENOMEM;
1457 goto free;
1458 }
1459
1460 if (dp->spt_info[i].paddr & ATH12K_SPT_4K_ALIGN_CHECK) {
1461 ath12k_warn(ab, "SPT allocated memory is not 4K aligned");
1462 ret = -EINVAL;
1463 goto free;
1464 }
1465
1466 /* Write to PPT in CMEM */
1467 ath12k_hif_write32(ab, cmem_base + ATH12K_PPT_ADDR_OFFSET(i),
1468 dp->spt_info[i].paddr >> ATH12K_SPT_4K_ALIGN_OFFSET);
1469 }
1470
1471 ret = ath12k_dp_cc_desc_init(ab);
1472 if (ret) {
1473 ath12k_warn(ab, "HW CC desc init failed %d", ret);
1474 goto free;
1475 }
1476
1477 return 0;
1478 free:
1479 ath12k_dp_cc_cleanup(ab);
1480 return ret;
1481 }
1482
ath12k_dp_reoq_lut_setup(struct ath12k_base * ab)1483 static int ath12k_dp_reoq_lut_setup(struct ath12k_base *ab)
1484 {
1485 struct ath12k_dp *dp = &ab->dp;
1486
1487 if (!ab->hw_params->reoq_lut_support)
1488 return 0;
1489
1490 dp->reoq_lut.vaddr = dma_alloc_coherent(ab->dev,
1491 DP_REOQ_LUT_SIZE,
1492 &dp->reoq_lut.paddr,
1493 GFP_KERNEL | __GFP_ZERO);
1494 if (!dp->reoq_lut.vaddr) {
1495 ath12k_warn(ab, "failed to allocate memory for reoq table");
1496 return -ENOMEM;
1497 }
1498
1499 ath12k_hif_write32(ab, HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO1_QDESC_LUT_BASE0(ab),
1500 dp->reoq_lut.paddr);
1501 return 0;
1502 }
1503
ath12k_dp_alloc(struct ath12k_base * ab)1504 int ath12k_dp_alloc(struct ath12k_base *ab)
1505 {
1506 struct ath12k_dp *dp = &ab->dp;
1507 struct hal_srng *srng = NULL;
1508 size_t size = 0;
1509 u32 n_link_desc = 0;
1510 int ret;
1511 int i;
1512
1513 dp->ab = ab;
1514
1515 INIT_LIST_HEAD(&dp->reo_cmd_list);
1516 INIT_LIST_HEAD(&dp->reo_cmd_cache_flush_list);
1517 spin_lock_init(&dp->reo_cmd_lock);
1518
1519 dp->reo_cmd_cache_flush_count = 0;
1520
1521 ret = ath12k_wbm_idle_ring_setup(ab, &n_link_desc);
1522 if (ret) {
1523 ath12k_warn(ab, "failed to setup wbm_idle_ring: %d\n", ret);
1524 return ret;
1525 }
1526
1527 srng = &ab->hal.srng_list[dp->wbm_idle_ring.ring_id];
1528
1529 ret = ath12k_dp_link_desc_setup(ab, dp->link_desc_banks,
1530 HAL_WBM_IDLE_LINK, srng, n_link_desc);
1531 if (ret) {
1532 ath12k_warn(ab, "failed to setup link desc: %d\n", ret);
1533 return ret;
1534 }
1535
1536 ret = ath12k_dp_cc_init(ab);
1537
1538 if (ret) {
1539 ath12k_warn(ab, "failed to setup cookie converter %d\n", ret);
1540 goto fail_link_desc_cleanup;
1541 }
1542 ret = ath12k_dp_init_bank_profiles(ab);
1543 if (ret) {
1544 ath12k_warn(ab, "failed to setup bank profiles %d\n", ret);
1545 goto fail_hw_cc_cleanup;
1546 }
1547
1548 ret = ath12k_dp_srng_common_setup(ab);
1549 if (ret)
1550 goto fail_dp_bank_profiles_cleanup;
1551
1552 size = sizeof(struct hal_wbm_release_ring_tx) * DP_TX_COMP_RING_SIZE;
1553
1554 ret = ath12k_dp_reoq_lut_setup(ab);
1555 if (ret) {
1556 ath12k_warn(ab, "failed to setup reoq table %d\n", ret);
1557 goto fail_cmn_srng_cleanup;
1558 }
1559
1560 for (i = 0; i < ab->hw_params->max_tx_ring; i++) {
1561 dp->tx_ring[i].tcl_data_ring_id = i;
1562
1563 dp->tx_ring[i].tx_status_head = 0;
1564 dp->tx_ring[i].tx_status_tail = DP_TX_COMP_RING_SIZE - 1;
1565 dp->tx_ring[i].tx_status = kmalloc(size, GFP_KERNEL);
1566 if (!dp->tx_ring[i].tx_status) {
1567 ret = -ENOMEM;
1568 /* FIXME: The allocated tx status is not freed
1569 * properly here
1570 */
1571 goto fail_cmn_reoq_cleanup;
1572 }
1573 }
1574
1575 for (i = 0; i < HAL_DSCP_TID_MAP_TBL_NUM_ENTRIES_MAX; i++)
1576 ath12k_hal_tx_set_dscp_tid_map(ab, i);
1577
1578 ret = ath12k_dp_rx_alloc(ab);
1579 if (ret)
1580 goto fail_dp_rx_free;
1581
1582 /* Init any SOC level resource for DP */
1583
1584 return 0;
1585
1586 fail_dp_rx_free:
1587 ath12k_dp_rx_free(ab);
1588
1589 fail_cmn_reoq_cleanup:
1590 ath12k_dp_reoq_lut_cleanup(ab);
1591
1592 fail_cmn_srng_cleanup:
1593 ath12k_dp_srng_common_cleanup(ab);
1594
1595 fail_dp_bank_profiles_cleanup:
1596 ath12k_dp_deinit_bank_profiles(ab);
1597
1598 fail_hw_cc_cleanup:
1599 ath12k_dp_cc_cleanup(ab);
1600
1601 fail_link_desc_cleanup:
1602 ath12k_dp_link_desc_cleanup(ab, dp->link_desc_banks,
1603 HAL_WBM_IDLE_LINK, &dp->wbm_idle_ring);
1604
1605 return ret;
1606 }
1607