1 // SPDX-License-Identifier: BSD-3-Clause-Clear
2 /*
3 * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
4 * Copyright (c) 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
ath11k_dp_htt_htc_tx_complete(struct ath11k_base * ab,struct sk_buff * skb)16 static void ath11k_dp_htt_htc_tx_complete(struct ath11k_base *ab,
17 struct sk_buff *skb)
18 {
19 dev_kfree_skb_any(skb);
20 }
21
ath11k_dp_peer_cleanup(struct ath11k * ar,int vdev_id,const u8 * addr)22 void ath11k_dp_peer_cleanup(struct ath11k *ar, int vdev_id, const u8 *addr)
23 {
24 struct ath11k_base *ab = ar->ab;
25 struct ath11k_peer *peer;
26
27 /* TODO: Any other peer specific DP cleanup */
28
29 spin_lock_bh(&ab->base_lock);
30 peer = ath11k_peer_find(ab, vdev_id, addr);
31 if (!peer) {
32 ath11k_warn(ab, "failed to lookup peer %pM on vdev %d\n",
33 addr, vdev_id);
34 spin_unlock_bh(&ab->base_lock);
35 return;
36 }
37
38 ath11k_peer_rx_tid_cleanup(ar, peer);
39 crypto_free_shash(peer->tfm_mmic);
40 spin_unlock_bh(&ab->base_lock);
41 }
42
ath11k_dp_peer_setup(struct ath11k * ar,int vdev_id,const u8 * addr)43 int ath11k_dp_peer_setup(struct ath11k *ar, int vdev_id, const u8 *addr)
44 {
45 struct ath11k_base *ab = ar->ab;
46 struct ath11k_peer *peer;
47 u32 reo_dest;
48 int ret = 0, tid;
49
50 /* NOTE: reo_dest ring id starts from 1 unlike mac_id which starts from 0 */
51 reo_dest = ar->dp.mac_id + 1;
52 ret = ath11k_wmi_set_peer_param(ar, addr, vdev_id,
53 WMI_PEER_SET_DEFAULT_ROUTING,
54 DP_RX_HASH_ENABLE | (reo_dest << 1));
55
56 if (ret) {
57 ath11k_warn(ab, "failed to set default routing %d peer :%pM vdev_id :%d\n",
58 ret, addr, vdev_id);
59 return ret;
60 }
61
62 for (tid = 0; tid <= IEEE80211_NUM_TIDS; tid++) {
63 ret = ath11k_peer_rx_tid_setup(ar, addr, vdev_id, tid, 1, 0,
64 HAL_PN_TYPE_NONE);
65 if (ret) {
66 ath11k_warn(ab, "failed to setup rxd tid queue for tid %d: %d\n",
67 tid, ret);
68 goto peer_clean;
69 }
70 }
71
72 ret = ath11k_peer_rx_frag_setup(ar, addr, vdev_id);
73 if (ret) {
74 ath11k_warn(ab, "failed to setup rx defrag context\n");
75 return ret;
76 }
77
78 /* TODO: Setup other peer specific resource used in data path */
79
80 return 0;
81
82 peer_clean:
83 spin_lock_bh(&ab->base_lock);
84
85 peer = ath11k_peer_find(ab, vdev_id, addr);
86 if (!peer) {
87 ath11k_warn(ab, "failed to find the peer to del rx tid\n");
88 spin_unlock_bh(&ab->base_lock);
89 return -ENOENT;
90 }
91
92 for (; tid >= 0; tid--)
93 ath11k_peer_rx_tid_delete(ar, peer, tid);
94
95 spin_unlock_bh(&ab->base_lock);
96
97 return ret;
98 }
99
ath11k_dp_srng_cleanup(struct ath11k_base * ab,struct dp_srng * ring)100 void ath11k_dp_srng_cleanup(struct ath11k_base *ab, struct dp_srng *ring)
101 {
102 if (!ring->vaddr_unaligned)
103 return;
104
105 if (ring->cached)
106 kfree(ring->vaddr_unaligned);
107 else
108 dma_free_coherent(ab->dev, ring->size, ring->vaddr_unaligned,
109 ring->paddr_unaligned);
110
111 ring->vaddr_unaligned = NULL;
112 }
113
ath11k_dp_srng_find_ring_in_mask(int ring_num,const u8 * grp_mask)114 static int ath11k_dp_srng_find_ring_in_mask(int ring_num, const u8 *grp_mask)
115 {
116 int ext_group_num;
117 u8 mask = 1 << ring_num;
118
119 for (ext_group_num = 0; ext_group_num < ATH11K_EXT_IRQ_GRP_NUM_MAX;
120 ext_group_num++) {
121 if (mask & grp_mask[ext_group_num])
122 return ext_group_num;
123 }
124
125 return -ENOENT;
126 }
127
ath11k_dp_srng_calculate_msi_group(struct ath11k_base * ab,enum hal_ring_type type,int ring_num)128 static int ath11k_dp_srng_calculate_msi_group(struct ath11k_base *ab,
129 enum hal_ring_type type, int ring_num)
130 {
131 const u8 *grp_mask;
132
133 switch (type) {
134 case HAL_WBM2SW_RELEASE:
135 if (ring_num == DP_RX_RELEASE_RING_NUM) {
136 grp_mask = &ab->hw_params.ring_mask->rx_wbm_rel[0];
137 ring_num = 0;
138 } else {
139 grp_mask = &ab->hw_params.ring_mask->tx[0];
140 }
141 break;
142 case HAL_REO_EXCEPTION:
143 grp_mask = &ab->hw_params.ring_mask->rx_err[0];
144 break;
145 case HAL_REO_DST:
146 grp_mask = &ab->hw_params.ring_mask->rx[0];
147 break;
148 case HAL_REO_STATUS:
149 grp_mask = &ab->hw_params.ring_mask->reo_status[0];
150 break;
151 case HAL_RXDMA_MONITOR_STATUS:
152 case HAL_RXDMA_MONITOR_DST:
153 grp_mask = &ab->hw_params.ring_mask->rx_mon_status[0];
154 break;
155 case HAL_RXDMA_DST:
156 grp_mask = &ab->hw_params.ring_mask->rxdma2host[0];
157 break;
158 case HAL_RXDMA_BUF:
159 grp_mask = &ab->hw_params.ring_mask->host2rxdma[0];
160 break;
161 case HAL_RXDMA_MONITOR_BUF:
162 case HAL_TCL_DATA:
163 case HAL_TCL_CMD:
164 case HAL_REO_CMD:
165 case HAL_SW2WBM_RELEASE:
166 case HAL_WBM_IDLE_LINK:
167 case HAL_TCL_STATUS:
168 case HAL_REO_REINJECT:
169 case HAL_CE_SRC:
170 case HAL_CE_DST:
171 case HAL_CE_DST_STATUS:
172 default:
173 return -ENOENT;
174 }
175
176 return ath11k_dp_srng_find_ring_in_mask(ring_num, grp_mask);
177 }
178
ath11k_dp_srng_msi_setup(struct ath11k_base * ab,struct hal_srng_params * ring_params,enum hal_ring_type type,int ring_num)179 static void ath11k_dp_srng_msi_setup(struct ath11k_base *ab,
180 struct hal_srng_params *ring_params,
181 enum hal_ring_type type, int ring_num)
182 {
183 int msi_group_number, msi_data_count;
184 u32 msi_data_start, msi_irq_start, addr_lo, addr_hi;
185 int ret;
186
187 ret = ath11k_get_user_msi_vector(ab, "DP",
188 &msi_data_count, &msi_data_start,
189 &msi_irq_start);
190 if (ret)
191 return;
192
193 msi_group_number = ath11k_dp_srng_calculate_msi_group(ab, type,
194 ring_num);
195 if (msi_group_number < 0) {
196 ath11k_dbg(ab, ATH11K_DBG_PCI,
197 "ring not part of an ext_group; ring_type: %d,ring_num %d",
198 type, ring_num);
199 ring_params->msi_addr = 0;
200 ring_params->msi_data = 0;
201 return;
202 }
203
204 if (msi_group_number > msi_data_count) {
205 ath11k_dbg(ab, ATH11K_DBG_PCI,
206 "multiple msi_groups share one msi, msi_group_num %d",
207 msi_group_number);
208 }
209
210 ath11k_get_msi_address(ab, &addr_lo, &addr_hi);
211
212 ring_params->msi_addr = addr_lo;
213 ring_params->msi_addr |= (dma_addr_t)(((uint64_t)addr_hi) << 32);
214 ring_params->msi_data = (msi_group_number % msi_data_count)
215 + msi_data_start;
216 ring_params->flags |= HAL_SRNG_FLAGS_MSI_INTR;
217 }
218
ath11k_dp_srng_setup(struct ath11k_base * ab,struct dp_srng * ring,enum hal_ring_type type,int ring_num,int mac_id,int num_entries)219 int ath11k_dp_srng_setup(struct ath11k_base *ab, struct dp_srng *ring,
220 enum hal_ring_type type, int ring_num,
221 int mac_id, int num_entries)
222 {
223 struct hal_srng_params params = { 0 };
224 int entry_sz = ath11k_hal_srng_get_entrysize(ab, type);
225 int max_entries = ath11k_hal_srng_get_max_entries(ab, type);
226 int ret;
227 bool cached = false;
228
229 if (max_entries < 0 || entry_sz < 0)
230 return -EINVAL;
231
232 if (num_entries > max_entries)
233 num_entries = max_entries;
234
235 ring->size = (num_entries * entry_sz) + HAL_RING_BASE_ALIGN - 1;
236
237 if (ab->hw_params.alloc_cacheable_memory) {
238 /* Allocate the reo dst and tx completion rings from cacheable memory */
239 switch (type) {
240 case HAL_REO_DST:
241 case HAL_WBM2SW_RELEASE:
242 cached = true;
243 break;
244 default:
245 cached = false;
246 }
247
248 if (cached) {
249 ring->vaddr_unaligned = kzalloc(ring->size, GFP_KERNEL);
250 ring->paddr_unaligned = virt_to_phys(ring->vaddr_unaligned);
251 }
252 }
253
254 if (!cached)
255 ring->vaddr_unaligned = dma_alloc_coherent(ab->dev, ring->size,
256 &ring->paddr_unaligned,
257 GFP_KERNEL);
258
259 if (!ring->vaddr_unaligned)
260 return -ENOMEM;
261
262 ring->vaddr = PTR_ALIGN(ring->vaddr_unaligned, HAL_RING_BASE_ALIGN);
263 ring->paddr = ring->paddr_unaligned + ((unsigned long)ring->vaddr -
264 (unsigned long)ring->vaddr_unaligned);
265
266 params.ring_base_vaddr = ring->vaddr;
267 params.ring_base_paddr = ring->paddr;
268 params.num_entries = num_entries;
269 ath11k_dp_srng_msi_setup(ab, ¶ms, type, ring_num + mac_id);
270
271 switch (type) {
272 case HAL_REO_DST:
273 params.intr_batch_cntr_thres_entries =
274 HAL_SRNG_INT_BATCH_THRESHOLD_RX;
275 params.intr_timer_thres_us = HAL_SRNG_INT_TIMER_THRESHOLD_RX;
276 break;
277 case HAL_RXDMA_BUF:
278 case HAL_RXDMA_MONITOR_BUF:
279 case HAL_RXDMA_MONITOR_STATUS:
280 params.low_threshold = num_entries >> 3;
281 params.flags |= HAL_SRNG_FLAGS_LOW_THRESH_INTR_EN;
282 params.intr_batch_cntr_thres_entries = 0;
283 params.intr_timer_thres_us = HAL_SRNG_INT_TIMER_THRESHOLD_RX;
284 break;
285 case HAL_WBM2SW_RELEASE:
286 if (ring_num < 3) {
287 params.intr_batch_cntr_thres_entries =
288 HAL_SRNG_INT_BATCH_THRESHOLD_TX;
289 params.intr_timer_thres_us =
290 HAL_SRNG_INT_TIMER_THRESHOLD_TX;
291 break;
292 }
293 /* follow through when ring_num >= 3 */
294 fallthrough;
295 case HAL_REO_EXCEPTION:
296 case HAL_REO_REINJECT:
297 case HAL_REO_CMD:
298 case HAL_REO_STATUS:
299 case HAL_TCL_DATA:
300 case HAL_TCL_CMD:
301 case HAL_TCL_STATUS:
302 case HAL_WBM_IDLE_LINK:
303 case HAL_SW2WBM_RELEASE:
304 case HAL_RXDMA_DST:
305 case HAL_RXDMA_MONITOR_DST:
306 case HAL_RXDMA_MONITOR_DESC:
307 params.intr_batch_cntr_thres_entries =
308 HAL_SRNG_INT_BATCH_THRESHOLD_OTHER;
309 params.intr_timer_thres_us = HAL_SRNG_INT_TIMER_THRESHOLD_OTHER;
310 break;
311 case HAL_RXDMA_DIR_BUF:
312 break;
313 default:
314 ath11k_warn(ab, "Not a valid ring type in dp :%d\n", type);
315 return -EINVAL;
316 }
317
318 if (cached) {
319 params.flags |= HAL_SRNG_FLAGS_CACHED;
320 ring->cached = 1;
321 }
322
323 ret = ath11k_hal_srng_setup(ab, type, ring_num, mac_id, ¶ms);
324 if (ret < 0) {
325 ath11k_warn(ab, "failed to setup srng: %d ring_id %d\n",
326 ret, ring_num);
327 return ret;
328 }
329
330 ring->ring_id = ret;
331
332 return 0;
333 }
334
ath11k_dp_stop_shadow_timers(struct ath11k_base * ab)335 void ath11k_dp_stop_shadow_timers(struct ath11k_base *ab)
336 {
337 int i;
338
339 if (!ab->hw_params.supports_shadow_regs)
340 return;
341
342 for (i = 0; i < ab->hw_params.max_tx_ring; i++)
343 ath11k_dp_shadow_stop_timer(ab, &ab->dp.tx_ring_timer[i]);
344
345 ath11k_dp_shadow_stop_timer(ab, &ab->dp.reo_cmd_timer);
346 }
347
ath11k_dp_srng_common_cleanup(struct ath11k_base * ab)348 static void ath11k_dp_srng_common_cleanup(struct ath11k_base *ab)
349 {
350 struct ath11k_dp *dp = &ab->dp;
351 int i;
352
353 ath11k_dp_stop_shadow_timers(ab);
354 ath11k_dp_srng_cleanup(ab, &dp->wbm_desc_rel_ring);
355 ath11k_dp_srng_cleanup(ab, &dp->tcl_cmd_ring);
356 ath11k_dp_srng_cleanup(ab, &dp->tcl_status_ring);
357 for (i = 0; i < ab->hw_params.max_tx_ring; i++) {
358 ath11k_dp_srng_cleanup(ab, &dp->tx_ring[i].tcl_data_ring);
359 ath11k_dp_srng_cleanup(ab, &dp->tx_ring[i].tcl_comp_ring);
360 }
361 ath11k_dp_srng_cleanup(ab, &dp->reo_reinject_ring);
362 ath11k_dp_srng_cleanup(ab, &dp->rx_rel_ring);
363 ath11k_dp_srng_cleanup(ab, &dp->reo_except_ring);
364 ath11k_dp_srng_cleanup(ab, &dp->reo_cmd_ring);
365 ath11k_dp_srng_cleanup(ab, &dp->reo_status_ring);
366 }
367
ath11k_dp_srng_common_setup(struct ath11k_base * ab)368 static int ath11k_dp_srng_common_setup(struct ath11k_base *ab)
369 {
370 struct ath11k_dp *dp = &ab->dp;
371 struct hal_srng *srng;
372 int i, ret;
373 u8 tcl_num, wbm_num;
374
375 ret = ath11k_dp_srng_setup(ab, &dp->wbm_desc_rel_ring,
376 HAL_SW2WBM_RELEASE, 0, 0,
377 DP_WBM_RELEASE_RING_SIZE);
378 if (ret) {
379 ath11k_warn(ab, "failed to set up wbm2sw_release ring :%d\n",
380 ret);
381 goto err;
382 }
383
384 ret = ath11k_dp_srng_setup(ab, &dp->tcl_cmd_ring, HAL_TCL_CMD, 0, 0,
385 DP_TCL_CMD_RING_SIZE);
386 if (ret) {
387 ath11k_warn(ab, "failed to set up tcl_cmd ring :%d\n", ret);
388 goto err;
389 }
390
391 ret = ath11k_dp_srng_setup(ab, &dp->tcl_status_ring, HAL_TCL_STATUS,
392 0, 0, DP_TCL_STATUS_RING_SIZE);
393 if (ret) {
394 ath11k_warn(ab, "failed to set up tcl_status ring :%d\n", ret);
395 goto err;
396 }
397
398 for (i = 0; i < ab->hw_params.max_tx_ring; i++) {
399 tcl_num = ab->hw_params.hal_params->tcl2wbm_rbm_map[i].tcl_ring_num;
400 wbm_num = ab->hw_params.hal_params->tcl2wbm_rbm_map[i].wbm_ring_num;
401
402 ret = ath11k_dp_srng_setup(ab, &dp->tx_ring[i].tcl_data_ring,
403 HAL_TCL_DATA, tcl_num, 0,
404 ab->hw_params.tx_ring_size);
405 if (ret) {
406 ath11k_warn(ab, "failed to set up tcl_data ring (%d) :%d\n",
407 i, ret);
408 goto err;
409 }
410
411 ret = ath11k_dp_srng_setup(ab, &dp->tx_ring[i].tcl_comp_ring,
412 HAL_WBM2SW_RELEASE, wbm_num, 0,
413 DP_TX_COMP_RING_SIZE);
414 if (ret) {
415 ath11k_warn(ab, "failed to set up tcl_comp ring (%d) :%d\n",
416 i, ret);
417 goto err;
418 }
419
420 srng = &ab->hal.srng_list[dp->tx_ring[i].tcl_data_ring.ring_id];
421 ath11k_hal_tx_init_data_ring(ab, srng);
422
423 ath11k_dp_shadow_init_timer(ab, &dp->tx_ring_timer[i],
424 ATH11K_SHADOW_DP_TIMER_INTERVAL,
425 dp->tx_ring[i].tcl_data_ring.ring_id);
426 }
427
428 ret = ath11k_dp_srng_setup(ab, &dp->reo_reinject_ring, HAL_REO_REINJECT,
429 0, 0, DP_REO_REINJECT_RING_SIZE);
430 if (ret) {
431 ath11k_warn(ab, "failed to set up reo_reinject ring :%d\n",
432 ret);
433 goto err;
434 }
435
436 ret = ath11k_dp_srng_setup(ab, &dp->rx_rel_ring, HAL_WBM2SW_RELEASE,
437 DP_RX_RELEASE_RING_NUM, 0, DP_RX_RELEASE_RING_SIZE);
438 if (ret) {
439 ath11k_warn(ab, "failed to set up rx_rel ring :%d\n", ret);
440 goto err;
441 }
442
443 ret = ath11k_dp_srng_setup(ab, &dp->reo_except_ring, HAL_REO_EXCEPTION,
444 0, 0, DP_REO_EXCEPTION_RING_SIZE);
445 if (ret) {
446 ath11k_warn(ab, "failed to set up reo_exception ring :%d\n",
447 ret);
448 goto err;
449 }
450
451 ret = ath11k_dp_srng_setup(ab, &dp->reo_cmd_ring, HAL_REO_CMD,
452 0, 0, DP_REO_CMD_RING_SIZE);
453 if (ret) {
454 ath11k_warn(ab, "failed to set up reo_cmd ring :%d\n", ret);
455 goto err;
456 }
457
458 srng = &ab->hal.srng_list[dp->reo_cmd_ring.ring_id];
459 ath11k_hal_reo_init_cmd_ring(ab, srng);
460
461 ath11k_dp_shadow_init_timer(ab, &dp->reo_cmd_timer,
462 ATH11K_SHADOW_CTRL_TIMER_INTERVAL,
463 dp->reo_cmd_ring.ring_id);
464
465 ret = ath11k_dp_srng_setup(ab, &dp->reo_status_ring, HAL_REO_STATUS,
466 0, 0, DP_REO_STATUS_RING_SIZE);
467 if (ret) {
468 ath11k_warn(ab, "failed to set up reo_status ring :%d\n", ret);
469 goto err;
470 }
471
472 /* When hash based routing of rx packet is enabled, 32 entries to map
473 * the hash values to the ring will be configured.
474 */
475 ab->hw_params.hw_ops->reo_setup(ab);
476
477 return 0;
478
479 err:
480 ath11k_dp_srng_common_cleanup(ab);
481
482 return ret;
483 }
484
ath11k_dp_scatter_idle_link_desc_cleanup(struct ath11k_base * ab)485 static void ath11k_dp_scatter_idle_link_desc_cleanup(struct ath11k_base *ab)
486 {
487 struct ath11k_dp *dp = &ab->dp;
488 struct hal_wbm_idle_scatter_list *slist = dp->scatter_list;
489 int i;
490
491 for (i = 0; i < DP_IDLE_SCATTER_BUFS_MAX; i++) {
492 if (!slist[i].vaddr)
493 continue;
494
495 dma_free_coherent(ab->dev, HAL_WBM_IDLE_SCATTER_BUF_SIZE_MAX,
496 slist[i].vaddr, slist[i].paddr);
497 slist[i].vaddr = NULL;
498 }
499 }
500
ath11k_dp_scatter_idle_link_desc_setup(struct ath11k_base * ab,int size,u32 n_link_desc_bank,u32 n_link_desc,u32 last_bank_sz)501 static int ath11k_dp_scatter_idle_link_desc_setup(struct ath11k_base *ab,
502 int size,
503 u32 n_link_desc_bank,
504 u32 n_link_desc,
505 u32 last_bank_sz)
506 {
507 struct ath11k_dp *dp = &ab->dp;
508 struct dp_link_desc_bank *link_desc_banks = dp->link_desc_banks;
509 struct hal_wbm_idle_scatter_list *slist = dp->scatter_list;
510 u32 n_entries_per_buf;
511 int num_scatter_buf, scatter_idx;
512 struct hal_wbm_link_desc *scatter_buf;
513 int align_bytes, n_entries;
514 dma_addr_t paddr;
515 int rem_entries;
516 int i;
517 int ret = 0;
518 u32 end_offset;
519
520 n_entries_per_buf = HAL_WBM_IDLE_SCATTER_BUF_SIZE /
521 ath11k_hal_srng_get_entrysize(ab, HAL_WBM_IDLE_LINK);
522 num_scatter_buf = DIV_ROUND_UP(size, HAL_WBM_IDLE_SCATTER_BUF_SIZE);
523
524 if (num_scatter_buf > DP_IDLE_SCATTER_BUFS_MAX)
525 return -EINVAL;
526
527 for (i = 0; i < num_scatter_buf; i++) {
528 slist[i].vaddr = dma_alloc_coherent(ab->dev,
529 HAL_WBM_IDLE_SCATTER_BUF_SIZE_MAX,
530 &slist[i].paddr, GFP_KERNEL);
531 if (!slist[i].vaddr) {
532 ret = -ENOMEM;
533 goto err;
534 }
535 }
536
537 scatter_idx = 0;
538 scatter_buf = slist[scatter_idx].vaddr;
539 rem_entries = n_entries_per_buf;
540
541 for (i = 0; i < n_link_desc_bank; i++) {
542 align_bytes = link_desc_banks[i].vaddr -
543 link_desc_banks[i].vaddr_unaligned;
544 n_entries = (DP_LINK_DESC_ALLOC_SIZE_THRESH - align_bytes) /
545 HAL_LINK_DESC_SIZE;
546 paddr = link_desc_banks[i].paddr;
547 while (n_entries) {
548 ath11k_hal_set_link_desc_addr(scatter_buf, i, paddr);
549 n_entries--;
550 paddr += HAL_LINK_DESC_SIZE;
551 if (rem_entries) {
552 rem_entries--;
553 scatter_buf++;
554 continue;
555 }
556
557 rem_entries = n_entries_per_buf;
558 scatter_idx++;
559 scatter_buf = slist[scatter_idx].vaddr;
560 }
561 }
562
563 end_offset = (scatter_buf - slist[scatter_idx].vaddr) *
564 sizeof(struct hal_wbm_link_desc);
565 ath11k_hal_setup_link_idle_list(ab, slist, num_scatter_buf,
566 n_link_desc, end_offset);
567
568 return 0;
569
570 err:
571 ath11k_dp_scatter_idle_link_desc_cleanup(ab);
572
573 return ret;
574 }
575
576 static void
ath11k_dp_link_desc_bank_free(struct ath11k_base * ab,struct dp_link_desc_bank * link_desc_banks)577 ath11k_dp_link_desc_bank_free(struct ath11k_base *ab,
578 struct dp_link_desc_bank *link_desc_banks)
579 {
580 int i;
581
582 for (i = 0; i < DP_LINK_DESC_BANKS_MAX; i++) {
583 if (link_desc_banks[i].vaddr_unaligned) {
584 dma_free_coherent(ab->dev,
585 link_desc_banks[i].size,
586 link_desc_banks[i].vaddr_unaligned,
587 link_desc_banks[i].paddr_unaligned);
588 link_desc_banks[i].vaddr_unaligned = NULL;
589 }
590 }
591 }
592
ath11k_dp_link_desc_bank_alloc(struct ath11k_base * ab,struct dp_link_desc_bank * desc_bank,int n_link_desc_bank,int last_bank_sz)593 static int ath11k_dp_link_desc_bank_alloc(struct ath11k_base *ab,
594 struct dp_link_desc_bank *desc_bank,
595 int n_link_desc_bank,
596 int last_bank_sz)
597 {
598 struct ath11k_dp *dp = &ab->dp;
599 int i;
600 int ret = 0;
601 int desc_sz = DP_LINK_DESC_ALLOC_SIZE_THRESH;
602
603 for (i = 0; i < n_link_desc_bank; i++) {
604 if (i == (n_link_desc_bank - 1) && last_bank_sz)
605 desc_sz = last_bank_sz;
606
607 desc_bank[i].vaddr_unaligned =
608 dma_alloc_coherent(ab->dev, desc_sz,
609 &desc_bank[i].paddr_unaligned,
610 GFP_KERNEL);
611 if (!desc_bank[i].vaddr_unaligned) {
612 ret = -ENOMEM;
613 goto err;
614 }
615
616 desc_bank[i].vaddr = PTR_ALIGN(desc_bank[i].vaddr_unaligned,
617 HAL_LINK_DESC_ALIGN);
618 desc_bank[i].paddr = desc_bank[i].paddr_unaligned +
619 ((unsigned long)desc_bank[i].vaddr -
620 (unsigned long)desc_bank[i].vaddr_unaligned);
621 desc_bank[i].size = desc_sz;
622 }
623
624 return 0;
625
626 err:
627 ath11k_dp_link_desc_bank_free(ab, dp->link_desc_banks);
628
629 return ret;
630 }
631
ath11k_dp_link_desc_cleanup(struct ath11k_base * ab,struct dp_link_desc_bank * desc_bank,u32 ring_type,struct dp_srng * ring)632 void ath11k_dp_link_desc_cleanup(struct ath11k_base *ab,
633 struct dp_link_desc_bank *desc_bank,
634 u32 ring_type, struct dp_srng *ring)
635 {
636 ath11k_dp_link_desc_bank_free(ab, desc_bank);
637
638 if (ring_type != HAL_RXDMA_MONITOR_DESC) {
639 ath11k_dp_srng_cleanup(ab, ring);
640 ath11k_dp_scatter_idle_link_desc_cleanup(ab);
641 }
642 }
643
ath11k_wbm_idle_ring_setup(struct ath11k_base * ab,u32 * n_link_desc)644 static int ath11k_wbm_idle_ring_setup(struct ath11k_base *ab, u32 *n_link_desc)
645 {
646 struct ath11k_dp *dp = &ab->dp;
647 u32 n_mpdu_link_desc, n_mpdu_queue_desc;
648 u32 n_tx_msdu_link_desc, n_rx_msdu_link_desc;
649 int ret = 0;
650
651 n_mpdu_link_desc = (DP_NUM_TIDS_MAX * DP_AVG_MPDUS_PER_TID_MAX) /
652 HAL_NUM_MPDUS_PER_LINK_DESC;
653
654 n_mpdu_queue_desc = n_mpdu_link_desc /
655 HAL_NUM_MPDU_LINKS_PER_QUEUE_DESC;
656
657 n_tx_msdu_link_desc = (DP_NUM_TIDS_MAX * DP_AVG_FLOWS_PER_TID *
658 DP_AVG_MSDUS_PER_FLOW) /
659 HAL_NUM_TX_MSDUS_PER_LINK_DESC;
660
661 n_rx_msdu_link_desc = (DP_NUM_TIDS_MAX * DP_AVG_MPDUS_PER_TID_MAX *
662 DP_AVG_MSDUS_PER_MPDU) /
663 HAL_NUM_RX_MSDUS_PER_LINK_DESC;
664
665 *n_link_desc = n_mpdu_link_desc + n_mpdu_queue_desc +
666 n_tx_msdu_link_desc + n_rx_msdu_link_desc;
667
668 if (*n_link_desc & (*n_link_desc - 1))
669 *n_link_desc = 1 << fls(*n_link_desc);
670
671 ret = ath11k_dp_srng_setup(ab, &dp->wbm_idle_ring,
672 HAL_WBM_IDLE_LINK, 0, 0, *n_link_desc);
673 if (ret) {
674 ath11k_warn(ab, "failed to setup wbm_idle_ring: %d\n", ret);
675 return ret;
676 }
677 return ret;
678 }
679
ath11k_dp_link_desc_setup(struct ath11k_base * ab,struct dp_link_desc_bank * link_desc_banks,u32 ring_type,struct hal_srng * srng,u32 n_link_desc)680 int ath11k_dp_link_desc_setup(struct ath11k_base *ab,
681 struct dp_link_desc_bank *link_desc_banks,
682 u32 ring_type, struct hal_srng *srng,
683 u32 n_link_desc)
684 {
685 u32 tot_mem_sz;
686 u32 n_link_desc_bank, last_bank_sz;
687 u32 entry_sz, align_bytes, n_entries;
688 u32 paddr;
689 u32 *desc;
690 int i, ret;
691
692 tot_mem_sz = n_link_desc * HAL_LINK_DESC_SIZE;
693 tot_mem_sz += HAL_LINK_DESC_ALIGN;
694
695 if (tot_mem_sz <= DP_LINK_DESC_ALLOC_SIZE_THRESH) {
696 n_link_desc_bank = 1;
697 last_bank_sz = tot_mem_sz;
698 } else {
699 n_link_desc_bank = tot_mem_sz /
700 (DP_LINK_DESC_ALLOC_SIZE_THRESH -
701 HAL_LINK_DESC_ALIGN);
702 last_bank_sz = tot_mem_sz %
703 (DP_LINK_DESC_ALLOC_SIZE_THRESH -
704 HAL_LINK_DESC_ALIGN);
705
706 if (last_bank_sz)
707 n_link_desc_bank += 1;
708 }
709
710 if (n_link_desc_bank > DP_LINK_DESC_BANKS_MAX)
711 return -EINVAL;
712
713 ret = ath11k_dp_link_desc_bank_alloc(ab, link_desc_banks,
714 n_link_desc_bank, last_bank_sz);
715 if (ret)
716 return ret;
717
718 /* Setup link desc idle list for HW internal usage */
719 entry_sz = ath11k_hal_srng_get_entrysize(ab, ring_type);
720 tot_mem_sz = entry_sz * n_link_desc;
721
722 /* Setup scatter desc list when the total memory requirement is more */
723 if (tot_mem_sz > DP_LINK_DESC_ALLOC_SIZE_THRESH &&
724 ring_type != HAL_RXDMA_MONITOR_DESC) {
725 ret = ath11k_dp_scatter_idle_link_desc_setup(ab, tot_mem_sz,
726 n_link_desc_bank,
727 n_link_desc,
728 last_bank_sz);
729 if (ret) {
730 ath11k_warn(ab, "failed to setup scatting idle list descriptor :%d\n",
731 ret);
732 goto fail_desc_bank_free;
733 }
734
735 return 0;
736 }
737
738 spin_lock_bh(&srng->lock);
739
740 ath11k_hal_srng_access_begin(ab, srng);
741
742 for (i = 0; i < n_link_desc_bank; i++) {
743 align_bytes = link_desc_banks[i].vaddr -
744 link_desc_banks[i].vaddr_unaligned;
745 n_entries = (link_desc_banks[i].size - align_bytes) /
746 HAL_LINK_DESC_SIZE;
747 paddr = link_desc_banks[i].paddr;
748 while (n_entries &&
749 (desc = ath11k_hal_srng_src_get_next_entry(ab, srng))) {
750 ath11k_hal_set_link_desc_addr((struct hal_wbm_link_desc *)desc,
751 i, paddr);
752 n_entries--;
753 paddr += HAL_LINK_DESC_SIZE;
754 }
755 }
756
757 ath11k_hal_srng_access_end(ab, srng);
758
759 spin_unlock_bh(&srng->lock);
760
761 return 0;
762
763 fail_desc_bank_free:
764 ath11k_dp_link_desc_bank_free(ab, link_desc_banks);
765
766 return ret;
767 }
768
ath11k_dp_service_srng(struct ath11k_base * ab,struct ath11k_ext_irq_grp * irq_grp,int budget)769 int ath11k_dp_service_srng(struct ath11k_base *ab,
770 struct ath11k_ext_irq_grp *irq_grp,
771 int budget)
772 {
773 struct napi_struct *napi = &irq_grp->napi;
774 const struct ath11k_hw_hal_params *hal_params;
775 int grp_id = irq_grp->grp_id;
776 int work_done = 0;
777 int i, j;
778 int tot_work_done = 0;
779
780 for (i = 0; i < ab->hw_params.max_tx_ring; i++) {
781 if (BIT(ab->hw_params.hal_params->tcl2wbm_rbm_map[i].wbm_ring_num) &
782 ab->hw_params.ring_mask->tx[grp_id])
783 ath11k_dp_tx_completion_handler(ab, i);
784 }
785
786 if (ab->hw_params.ring_mask->rx_err[grp_id]) {
787 work_done = ath11k_dp_process_rx_err(ab, napi, budget);
788 budget -= work_done;
789 tot_work_done += work_done;
790 if (budget <= 0)
791 goto done;
792 }
793
794 if (ab->hw_params.ring_mask->rx_wbm_rel[grp_id]) {
795 work_done = ath11k_dp_rx_process_wbm_err(ab,
796 napi,
797 budget);
798 budget -= work_done;
799 tot_work_done += work_done;
800
801 if (budget <= 0)
802 goto done;
803 }
804
805 if (ab->hw_params.ring_mask->rx[grp_id]) {
806 i = fls(ab->hw_params.ring_mask->rx[grp_id]) - 1;
807 work_done = ath11k_dp_process_rx(ab, i, napi,
808 budget);
809 budget -= work_done;
810 tot_work_done += work_done;
811 if (budget <= 0)
812 goto done;
813 }
814
815 if (ab->hw_params.ring_mask->rx_mon_status[grp_id]) {
816 for (i = 0; i < ab->num_radios; i++) {
817 for (j = 0; j < ab->hw_params.num_rxmda_per_pdev; j++) {
818 int id = i * ab->hw_params.num_rxmda_per_pdev + j;
819
820 if (ab->hw_params.ring_mask->rx_mon_status[grp_id] &
821 BIT(id)) {
822 work_done =
823 ath11k_dp_rx_process_mon_rings(ab,
824 id,
825 napi, budget);
826 budget -= work_done;
827 tot_work_done += work_done;
828
829 if (budget <= 0)
830 goto done;
831 }
832 }
833 }
834 }
835
836 if (ab->hw_params.ring_mask->reo_status[grp_id])
837 ath11k_dp_process_reo_status(ab);
838
839 for (i = 0; i < ab->num_radios; i++) {
840 for (j = 0; j < ab->hw_params.num_rxmda_per_pdev; j++) {
841 int id = i * ab->hw_params.num_rxmda_per_pdev + j;
842
843 if (ab->hw_params.ring_mask->rxdma2host[grp_id] & BIT(id)) {
844 work_done = ath11k_dp_process_rxdma_err(ab, id, budget);
845 budget -= work_done;
846 tot_work_done += work_done;
847 }
848
849 if (budget <= 0)
850 goto done;
851
852 if (ab->hw_params.ring_mask->host2rxdma[grp_id] & BIT(id)) {
853 struct ath11k *ar = ath11k_ab_to_ar(ab, id);
854 struct ath11k_pdev_dp *dp = &ar->dp;
855 struct dp_rxdma_ring *rx_ring = &dp->rx_refill_buf_ring;
856
857 hal_params = ab->hw_params.hal_params;
858 ath11k_dp_rxbufs_replenish(ab, id, rx_ring, 0,
859 hal_params->rx_buf_rbm);
860 }
861 }
862 }
863 /* TODO: Implement handler for other interrupts */
864
865 done:
866 return tot_work_done;
867 }
868 EXPORT_SYMBOL(ath11k_dp_service_srng);
869
ath11k_dp_pdev_free(struct ath11k_base * ab)870 void ath11k_dp_pdev_free(struct ath11k_base *ab)
871 {
872 struct ath11k *ar;
873 int i;
874
875 del_timer_sync(&ab->mon_reap_timer);
876
877 for (i = 0; i < ab->num_radios; i++) {
878 ar = ab->pdevs[i].ar;
879 ath11k_dp_rx_pdev_free(ab, i);
880 ath11k_debugfs_unregister(ar);
881 ath11k_dp_rx_pdev_mon_detach(ar);
882 }
883 }
884
ath11k_dp_pdev_pre_alloc(struct ath11k_base * ab)885 void ath11k_dp_pdev_pre_alloc(struct ath11k_base *ab)
886 {
887 struct ath11k *ar;
888 struct ath11k_pdev_dp *dp;
889 int i;
890 int j;
891
892 for (i = 0; i < ab->num_radios; i++) {
893 ar = ab->pdevs[i].ar;
894 dp = &ar->dp;
895 dp->mac_id = i;
896 idr_init(&dp->rx_refill_buf_ring.bufs_idr);
897 spin_lock_init(&dp->rx_refill_buf_ring.idr_lock);
898 atomic_set(&dp->num_tx_pending, 0);
899 init_waitqueue_head(&dp->tx_empty_waitq);
900 for (j = 0; j < ab->hw_params.num_rxmda_per_pdev; j++) {
901 idr_init(&dp->rx_mon_status_refill_ring[j].bufs_idr);
902 spin_lock_init(&dp->rx_mon_status_refill_ring[j].idr_lock);
903 }
904 idr_init(&dp->rxdma_mon_buf_ring.bufs_idr);
905 spin_lock_init(&dp->rxdma_mon_buf_ring.idr_lock);
906 }
907 }
908
ath11k_dp_pdev_alloc(struct ath11k_base * ab)909 int ath11k_dp_pdev_alloc(struct ath11k_base *ab)
910 {
911 struct ath11k *ar;
912 int ret;
913 int i;
914
915 /* TODO:Per-pdev rx ring unlike tx ring which is mapped to different AC's */
916 for (i = 0; i < ab->num_radios; i++) {
917 ar = ab->pdevs[i].ar;
918 ret = ath11k_dp_rx_pdev_alloc(ab, i);
919 if (ret) {
920 ath11k_warn(ab, "failed to allocate pdev rx for pdev_id :%d\n",
921 i);
922 goto err;
923 }
924 ret = ath11k_dp_rx_pdev_mon_attach(ar);
925 if (ret) {
926 ath11k_warn(ab, "failed to initialize mon pdev %d\n",
927 i);
928 goto err;
929 }
930 }
931
932 return 0;
933
934 err:
935 ath11k_dp_pdev_free(ab);
936
937 return ret;
938 }
939
ath11k_dp_htt_connect(struct ath11k_dp * dp)940 int ath11k_dp_htt_connect(struct ath11k_dp *dp)
941 {
942 struct ath11k_htc_svc_conn_req conn_req;
943 struct ath11k_htc_svc_conn_resp conn_resp;
944 int status;
945
946 memset(&conn_req, 0, sizeof(conn_req));
947 memset(&conn_resp, 0, sizeof(conn_resp));
948
949 conn_req.ep_ops.ep_tx_complete = ath11k_dp_htt_htc_tx_complete;
950 conn_req.ep_ops.ep_rx_complete = ath11k_dp_htt_htc_t2h_msg_handler;
951
952 /* connect to control service */
953 conn_req.service_id = ATH11K_HTC_SVC_ID_HTT_DATA_MSG;
954
955 status = ath11k_htc_connect_service(&dp->ab->htc, &conn_req,
956 &conn_resp);
957
958 if (status)
959 return status;
960
961 dp->eid = conn_resp.eid;
962
963 return 0;
964 }
965
ath11k_dp_update_vdev_search(struct ath11k_vif * arvif)966 static void ath11k_dp_update_vdev_search(struct ath11k_vif *arvif)
967 {
968 /* When v2_map_support is true:for STA mode, enable address
969 * search index, tcl uses ast_hash value in the descriptor.
970 * When v2_map_support is false: for STA mode, don't enable
971 * address search index.
972 */
973 switch (arvif->vdev_type) {
974 case WMI_VDEV_TYPE_STA:
975 if (arvif->ar->ab->hw_params.htt_peer_map_v2) {
976 arvif->hal_addr_search_flags = HAL_TX_ADDRX_EN;
977 arvif->search_type = HAL_TX_ADDR_SEARCH_INDEX;
978 } else {
979 arvif->hal_addr_search_flags = HAL_TX_ADDRY_EN;
980 arvif->search_type = HAL_TX_ADDR_SEARCH_DEFAULT;
981 }
982 break;
983 case WMI_VDEV_TYPE_AP:
984 case WMI_VDEV_TYPE_IBSS:
985 arvif->hal_addr_search_flags = HAL_TX_ADDRX_EN;
986 arvif->search_type = HAL_TX_ADDR_SEARCH_DEFAULT;
987 break;
988 case WMI_VDEV_TYPE_MONITOR:
989 default:
990 return;
991 }
992 }
993
ath11k_dp_vdev_tx_attach(struct ath11k * ar,struct ath11k_vif * arvif)994 void ath11k_dp_vdev_tx_attach(struct ath11k *ar, struct ath11k_vif *arvif)
995 {
996 arvif->tcl_metadata |= FIELD_PREP(HTT_TCL_META_DATA_TYPE, 1) |
997 FIELD_PREP(HTT_TCL_META_DATA_VDEV_ID,
998 arvif->vdev_id) |
999 FIELD_PREP(HTT_TCL_META_DATA_PDEV_ID,
1000 ar->pdev->pdev_id);
1001
1002 /* set HTT extension valid bit to 0 by default */
1003 arvif->tcl_metadata &= ~HTT_TCL_META_DATA_VALID_HTT;
1004
1005 ath11k_dp_update_vdev_search(arvif);
1006 }
1007
ath11k_dp_tx_pending_cleanup(int buf_id,void * skb,void * ctx)1008 static int ath11k_dp_tx_pending_cleanup(int buf_id, void *skb, void *ctx)
1009 {
1010 struct ath11k_base *ab = (struct ath11k_base *)ctx;
1011 struct sk_buff *msdu = skb;
1012
1013 dma_unmap_single(ab->dev, ATH11K_SKB_CB(msdu)->paddr, msdu->len,
1014 DMA_TO_DEVICE);
1015
1016 dev_kfree_skb_any(msdu);
1017
1018 return 0;
1019 }
1020
ath11k_dp_free(struct ath11k_base * ab)1021 void ath11k_dp_free(struct ath11k_base *ab)
1022 {
1023 struct ath11k_dp *dp = &ab->dp;
1024 int i;
1025
1026 ath11k_dp_link_desc_cleanup(ab, dp->link_desc_banks,
1027 HAL_WBM_IDLE_LINK, &dp->wbm_idle_ring);
1028
1029 ath11k_dp_srng_common_cleanup(ab);
1030
1031 ath11k_dp_reo_cmd_list_cleanup(ab);
1032
1033 for (i = 0; i < ab->hw_params.max_tx_ring; i++) {
1034 spin_lock_bh(&dp->tx_ring[i].tx_idr_lock);
1035 idr_for_each(&dp->tx_ring[i].txbuf_idr,
1036 ath11k_dp_tx_pending_cleanup, ab);
1037 idr_destroy(&dp->tx_ring[i].txbuf_idr);
1038 spin_unlock_bh(&dp->tx_ring[i].tx_idr_lock);
1039 kfree(dp->tx_ring[i].tx_status);
1040 }
1041
1042 /* Deinit any SOC level resource */
1043 }
1044
ath11k_dp_alloc(struct ath11k_base * ab)1045 int ath11k_dp_alloc(struct ath11k_base *ab)
1046 {
1047 struct ath11k_dp *dp = &ab->dp;
1048 struct hal_srng *srng = NULL;
1049 size_t size = 0;
1050 u32 n_link_desc = 0;
1051 int ret;
1052 int i;
1053
1054 dp->ab = ab;
1055
1056 INIT_LIST_HEAD(&dp->reo_cmd_list);
1057 INIT_LIST_HEAD(&dp->reo_cmd_cache_flush_list);
1058 INIT_LIST_HEAD(&dp->dp_full_mon_mpdu_list);
1059 spin_lock_init(&dp->reo_cmd_lock);
1060
1061 dp->reo_cmd_cache_flush_count = 0;
1062
1063 ret = ath11k_wbm_idle_ring_setup(ab, &n_link_desc);
1064 if (ret) {
1065 ath11k_warn(ab, "failed to setup wbm_idle_ring: %d\n", ret);
1066 return ret;
1067 }
1068
1069 srng = &ab->hal.srng_list[dp->wbm_idle_ring.ring_id];
1070
1071 ret = ath11k_dp_link_desc_setup(ab, dp->link_desc_banks,
1072 HAL_WBM_IDLE_LINK, srng, n_link_desc);
1073 if (ret) {
1074 ath11k_warn(ab, "failed to setup link desc: %d\n", ret);
1075 return ret;
1076 }
1077
1078 ret = ath11k_dp_srng_common_setup(ab);
1079 if (ret)
1080 goto fail_link_desc_cleanup;
1081
1082 size = sizeof(struct hal_wbm_release_ring) * DP_TX_COMP_RING_SIZE;
1083
1084 for (i = 0; i < ab->hw_params.max_tx_ring; i++) {
1085 idr_init(&dp->tx_ring[i].txbuf_idr);
1086 spin_lock_init(&dp->tx_ring[i].tx_idr_lock);
1087 dp->tx_ring[i].tcl_data_ring_id = i;
1088
1089 dp->tx_ring[i].tx_status_head = 0;
1090 dp->tx_ring[i].tx_status_tail = DP_TX_COMP_RING_SIZE - 1;
1091 dp->tx_ring[i].tx_status = kmalloc(size, GFP_KERNEL);
1092 if (!dp->tx_ring[i].tx_status) {
1093 ret = -ENOMEM;
1094 goto fail_cmn_srng_cleanup;
1095 }
1096 }
1097
1098 for (i = 0; i < HAL_DSCP_TID_MAP_TBL_NUM_ENTRIES_MAX; i++)
1099 ath11k_hal_tx_set_dscp_tid_map(ab, i);
1100
1101 /* Init any SOC level resource for DP */
1102
1103 return 0;
1104
1105 fail_cmn_srng_cleanup:
1106 ath11k_dp_srng_common_cleanup(ab);
1107
1108 fail_link_desc_cleanup:
1109 ath11k_dp_link_desc_cleanup(ab, dp->link_desc_banks,
1110 HAL_WBM_IDLE_LINK, &dp->wbm_idle_ring);
1111
1112 return ret;
1113 }
1114
ath11k_dp_shadow_timer_handler(struct timer_list * t)1115 static void ath11k_dp_shadow_timer_handler(struct timer_list *t)
1116 {
1117 struct ath11k_hp_update_timer *update_timer = from_timer(update_timer,
1118 t, timer);
1119 struct ath11k_base *ab = update_timer->ab;
1120 struct hal_srng *srng = &ab->hal.srng_list[update_timer->ring_id];
1121
1122 spin_lock_bh(&srng->lock);
1123
1124 /* when the timer is fired, the handler checks whether there
1125 * are new TX happened. The handler updates HP only when there
1126 * are no TX operations during the timeout interval, and stop
1127 * the timer. Timer will be started again when TX happens again.
1128 */
1129 if (update_timer->timer_tx_num != update_timer->tx_num) {
1130 update_timer->timer_tx_num = update_timer->tx_num;
1131 mod_timer(&update_timer->timer, jiffies +
1132 msecs_to_jiffies(update_timer->interval));
1133 } else {
1134 update_timer->started = false;
1135 ath11k_hal_srng_shadow_update_hp_tp(ab, srng);
1136 }
1137
1138 spin_unlock_bh(&srng->lock);
1139 }
1140
ath11k_dp_shadow_start_timer(struct ath11k_base * ab,struct hal_srng * srng,struct ath11k_hp_update_timer * update_timer)1141 void ath11k_dp_shadow_start_timer(struct ath11k_base *ab,
1142 struct hal_srng *srng,
1143 struct ath11k_hp_update_timer *update_timer)
1144 {
1145 lockdep_assert_held(&srng->lock);
1146
1147 if (!ab->hw_params.supports_shadow_regs)
1148 return;
1149
1150 update_timer->tx_num++;
1151
1152 if (update_timer->started)
1153 return;
1154
1155 update_timer->started = true;
1156 update_timer->timer_tx_num = update_timer->tx_num;
1157 mod_timer(&update_timer->timer, jiffies +
1158 msecs_to_jiffies(update_timer->interval));
1159 }
1160
ath11k_dp_shadow_stop_timer(struct ath11k_base * ab,struct ath11k_hp_update_timer * update_timer)1161 void ath11k_dp_shadow_stop_timer(struct ath11k_base *ab,
1162 struct ath11k_hp_update_timer *update_timer)
1163 {
1164 if (!ab->hw_params.supports_shadow_regs)
1165 return;
1166
1167 if (!update_timer->init)
1168 return;
1169
1170 del_timer_sync(&update_timer->timer);
1171 }
1172
ath11k_dp_shadow_init_timer(struct ath11k_base * ab,struct ath11k_hp_update_timer * update_timer,u32 interval,u32 ring_id)1173 void ath11k_dp_shadow_init_timer(struct ath11k_base *ab,
1174 struct ath11k_hp_update_timer *update_timer,
1175 u32 interval, u32 ring_id)
1176 {
1177 if (!ab->hw_params.supports_shadow_regs)
1178 return;
1179
1180 update_timer->tx_num = 0;
1181 update_timer->timer_tx_num = 0;
1182 update_timer->ab = ab;
1183 update_timer->ring_id = ring_id;
1184 update_timer->interval = interval;
1185 update_timer->init = true;
1186 timer_setup(&update_timer->timer,
1187 ath11k_dp_shadow_timer_handler, 0);
1188 }
1189