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Merge tag 'kbuild-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy...
[J-linux.git] / drivers / net / wireless / ath / ath12k / dp.c
1 // SPDX-License-Identifier: BSD-3-Clause-Clear
2 /*
3  * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
4  * Copyright (c) 2021-2024 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
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
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
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
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
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
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
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
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, &params, 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, &params);
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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, rx_ring, 0);
965         }
966
967         /* TODO: Implement handler for other interrupts */
968
969 done:
970         return tot_work_done;
971 }
972
973 void ath12k_dp_pdev_free(struct ath12k_base *ab)
974 {
975         int i;
976
977         del_timer_sync(&ab->mon_reap_timer);
978
979         for (i = 0; i < ab->num_radios; i++)
980                 ath12k_dp_rx_pdev_free(ab, i);
981 }
982
983 void ath12k_dp_pdev_pre_alloc(struct ath12k_base *ab)
984 {
985         struct ath12k *ar;
986         struct ath12k_pdev_dp *dp;
987         int i;
988
989         for (i = 0; i <  ab->num_radios; i++) {
990                 ar = ab->pdevs[i].ar;
991                 dp = &ar->dp;
992                 dp->mac_id = i;
993                 atomic_set(&dp->num_tx_pending, 0);
994                 init_waitqueue_head(&dp->tx_empty_waitq);
995
996                 /* TODO: Add any RXDMA setup required per pdev */
997         }
998 }
999
1000 bool ath12k_dp_wmask_compaction_rx_tlv_supported(struct ath12k_base *ab)
1001 {
1002         if (test_bit(WMI_TLV_SERVICE_WMSK_COMPACTION_RX_TLVS, ab->wmi_ab.svc_map) &&
1003             ab->hw_params->hal_ops->rxdma_ring_wmask_rx_mpdu_start &&
1004             ab->hw_params->hal_ops->rxdma_ring_wmask_rx_msdu_end &&
1005             ab->hw_params->hal_ops->get_hal_rx_compact_ops) {
1006                 return true;
1007         }
1008         return false;
1009 }
1010
1011 void ath12k_dp_hal_rx_desc_init(struct ath12k_base *ab)
1012 {
1013         if (ath12k_dp_wmask_compaction_rx_tlv_supported(ab)) {
1014                 /* RX TLVS compaction is supported, hence change the hal_rx_ops
1015                  * to compact hal_rx_ops.
1016                  */
1017                 ab->hal_rx_ops = ab->hw_params->hal_ops->get_hal_rx_compact_ops();
1018         }
1019         ab->hal.hal_desc_sz =
1020                 ab->hal_rx_ops->rx_desc_get_desc_size();
1021 }
1022
1023 static void ath12k_dp_service_mon_ring(struct timer_list *t)
1024 {
1025         struct ath12k_base *ab = from_timer(ab, t, mon_reap_timer);
1026         int i;
1027
1028         for (i = 0; i < ab->hw_params->num_rxmda_per_pdev; i++)
1029                 ath12k_dp_mon_process_ring(ab, i, NULL, DP_MON_SERVICE_BUDGET,
1030                                            ATH12K_DP_RX_MONITOR_MODE);
1031
1032         mod_timer(&ab->mon_reap_timer, jiffies +
1033                   msecs_to_jiffies(ATH12K_MON_TIMER_INTERVAL));
1034 }
1035
1036 static void ath12k_dp_mon_reap_timer_init(struct ath12k_base *ab)
1037 {
1038         if (ab->hw_params->rxdma1_enable)
1039                 return;
1040
1041         timer_setup(&ab->mon_reap_timer, ath12k_dp_service_mon_ring, 0);
1042 }
1043
1044 int ath12k_dp_pdev_alloc(struct ath12k_base *ab)
1045 {
1046         struct ath12k *ar;
1047         int ret;
1048         int i;
1049
1050         ret = ath12k_dp_rx_htt_setup(ab);
1051         if (ret)
1052                 goto out;
1053
1054         ath12k_dp_mon_reap_timer_init(ab);
1055
1056         /* TODO: Per-pdev rx ring unlike tx ring which is mapped to different AC's */
1057         for (i = 0; i < ab->num_radios; i++) {
1058                 ar = ab->pdevs[i].ar;
1059                 ret = ath12k_dp_rx_pdev_alloc(ab, i);
1060                 if (ret) {
1061                         ath12k_warn(ab, "failed to allocate pdev rx for pdev_id :%d\n",
1062                                     i);
1063                         goto err;
1064                 }
1065                 ret = ath12k_dp_rx_pdev_mon_attach(ar);
1066                 if (ret) {
1067                         ath12k_warn(ab, "failed to initialize mon pdev %d\n", i);
1068                         goto err;
1069                 }
1070         }
1071
1072         return 0;
1073 err:
1074         ath12k_dp_pdev_free(ab);
1075 out:
1076         return ret;
1077 }
1078
1079 int ath12k_dp_htt_connect(struct ath12k_dp *dp)
1080 {
1081         struct ath12k_htc_svc_conn_req conn_req = {0};
1082         struct ath12k_htc_svc_conn_resp conn_resp = {0};
1083         int status;
1084
1085         conn_req.ep_ops.ep_tx_complete = ath12k_dp_htt_htc_tx_complete;
1086         conn_req.ep_ops.ep_rx_complete = ath12k_dp_htt_htc_t2h_msg_handler;
1087
1088         /* connect to control service */
1089         conn_req.service_id = ATH12K_HTC_SVC_ID_HTT_DATA_MSG;
1090
1091         status = ath12k_htc_connect_service(&dp->ab->htc, &conn_req,
1092                                             &conn_resp);
1093
1094         if (status)
1095                 return status;
1096
1097         dp->eid = conn_resp.eid;
1098
1099         return 0;
1100 }
1101
1102 static void ath12k_dp_update_vdev_search(struct ath12k_vif *arvif)
1103 {
1104         switch (arvif->vdev_type) {
1105         case WMI_VDEV_TYPE_STA:
1106                 /* TODO: Verify the search type and flags since ast hash
1107                  * is not part of peer mapv3
1108                  */
1109                 arvif->hal_addr_search_flags = HAL_TX_ADDRY_EN;
1110                 arvif->search_type = HAL_TX_ADDR_SEARCH_DEFAULT;
1111                 break;
1112         case WMI_VDEV_TYPE_AP:
1113         case WMI_VDEV_TYPE_IBSS:
1114                 arvif->hal_addr_search_flags = HAL_TX_ADDRX_EN;
1115                 arvif->search_type = HAL_TX_ADDR_SEARCH_DEFAULT;
1116                 break;
1117         case WMI_VDEV_TYPE_MONITOR:
1118         default:
1119                 return;
1120         }
1121 }
1122
1123 void ath12k_dp_vdev_tx_attach(struct ath12k *ar, struct ath12k_vif *arvif)
1124 {
1125         struct ath12k_base *ab = ar->ab;
1126
1127         arvif->tcl_metadata |= u32_encode_bits(1, HTT_TCL_META_DATA_TYPE) |
1128                                u32_encode_bits(arvif->vdev_id,
1129                                                HTT_TCL_META_DATA_VDEV_ID) |
1130                                u32_encode_bits(ar->pdev->pdev_id,
1131                                                HTT_TCL_META_DATA_PDEV_ID);
1132
1133         /* set HTT extension valid bit to 0 by default */
1134         arvif->tcl_metadata &= ~HTT_TCL_META_DATA_VALID_HTT;
1135
1136         ath12k_dp_update_vdev_search(arvif);
1137         arvif->vdev_id_check_en = true;
1138         arvif->bank_id = ath12k_dp_tx_get_bank_profile(ab, arvif, &ab->dp);
1139
1140         /* TODO: error path for bank id failure */
1141         if (arvif->bank_id == DP_INVALID_BANK_ID) {
1142                 ath12k_err(ar->ab, "Failed to initialize DP TX Banks");
1143                 return;
1144         }
1145 }
1146
1147 static void ath12k_dp_cc_cleanup(struct ath12k_base *ab)
1148 {
1149         struct ath12k_rx_desc_info *desc_info, *tmp;
1150         struct ath12k_tx_desc_info *tx_desc_info, *tmp1;
1151         struct ath12k_dp *dp = &ab->dp;
1152         struct sk_buff *skb;
1153         int i;
1154         u32 pool_id, tx_spt_page;
1155
1156         if (!dp->spt_info)
1157                 return;
1158
1159         /* RX Descriptor cleanup */
1160         spin_lock_bh(&dp->rx_desc_lock);
1161
1162         list_for_each_entry_safe(desc_info, tmp, &dp->rx_desc_used_list, list) {
1163                 list_del(&desc_info->list);
1164                 skb = desc_info->skb;
1165
1166                 if (!skb)
1167                         continue;
1168
1169                 dma_unmap_single(ab->dev, ATH12K_SKB_RXCB(skb)->paddr,
1170                                  skb->len + skb_tailroom(skb), DMA_FROM_DEVICE);
1171                 dev_kfree_skb_any(skb);
1172         }
1173
1174         for (i = 0; i < ATH12K_NUM_RX_SPT_PAGES; i++) {
1175                 if (!dp->spt_info->rxbaddr[i])
1176                         continue;
1177
1178                 kfree(dp->spt_info->rxbaddr[i]);
1179                 dp->spt_info->rxbaddr[i] = NULL;
1180         }
1181
1182         spin_unlock_bh(&dp->rx_desc_lock);
1183
1184         /* TX Descriptor cleanup */
1185         for (i = 0; i < ATH12K_HW_MAX_QUEUES; i++) {
1186                 spin_lock_bh(&dp->tx_desc_lock[i]);
1187
1188                 list_for_each_entry_safe(tx_desc_info, tmp1, &dp->tx_desc_used_list[i],
1189                                          list) {
1190                         list_del(&tx_desc_info->list);
1191                         skb = tx_desc_info->skb;
1192
1193                         if (!skb)
1194                                 continue;
1195
1196                         dma_unmap_single(ab->dev, ATH12K_SKB_CB(skb)->paddr,
1197                                          skb->len, DMA_TO_DEVICE);
1198                         dev_kfree_skb_any(skb);
1199                 }
1200
1201                 spin_unlock_bh(&dp->tx_desc_lock[i]);
1202         }
1203
1204         for (pool_id = 0; pool_id < ATH12K_HW_MAX_QUEUES; pool_id++) {
1205                 spin_lock_bh(&dp->tx_desc_lock[pool_id]);
1206
1207                 for (i = 0; i < ATH12K_TX_SPT_PAGES_PER_POOL; i++) {
1208                         tx_spt_page = i + pool_id * ATH12K_TX_SPT_PAGES_PER_POOL;
1209                         if (!dp->spt_info->txbaddr[tx_spt_page])
1210                                 continue;
1211
1212                         kfree(dp->spt_info->txbaddr[tx_spt_page]);
1213                         dp->spt_info->txbaddr[tx_spt_page] = NULL;
1214                 }
1215
1216                 spin_unlock_bh(&dp->tx_desc_lock[pool_id]);
1217         }
1218
1219         /* unmap SPT pages */
1220         for (i = 0; i < dp->num_spt_pages; i++) {
1221                 if (!dp->spt_info[i].vaddr)
1222                         continue;
1223
1224                 dma_free_coherent(ab->dev, ATH12K_PAGE_SIZE,
1225                                   dp->spt_info[i].vaddr, dp->spt_info[i].paddr);
1226                 dp->spt_info[i].vaddr = NULL;
1227         }
1228
1229         kfree(dp->spt_info);
1230 }
1231
1232 static void ath12k_dp_reoq_lut_cleanup(struct ath12k_base *ab)
1233 {
1234         struct ath12k_dp *dp = &ab->dp;
1235
1236         if (!ab->hw_params->reoq_lut_support)
1237                 return;
1238
1239         if (!dp->reoq_lut.vaddr)
1240                 return;
1241
1242         dma_free_coherent(ab->dev, DP_REOQ_LUT_SIZE,
1243                           dp->reoq_lut.vaddr, dp->reoq_lut.paddr);
1244         dp->reoq_lut.vaddr = NULL;
1245
1246         ath12k_hif_write32(ab,
1247                            HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO1_QDESC_LUT_BASE0(ab), 0);
1248 }
1249
1250 void ath12k_dp_free(struct ath12k_base *ab)
1251 {
1252         struct ath12k_dp *dp = &ab->dp;
1253         int i;
1254
1255         ath12k_dp_link_desc_cleanup(ab, dp->link_desc_banks,
1256                                     HAL_WBM_IDLE_LINK, &dp->wbm_idle_ring);
1257
1258         ath12k_dp_cc_cleanup(ab);
1259         ath12k_dp_reoq_lut_cleanup(ab);
1260         ath12k_dp_deinit_bank_profiles(ab);
1261         ath12k_dp_srng_common_cleanup(ab);
1262
1263         ath12k_dp_rx_reo_cmd_list_cleanup(ab);
1264
1265         for (i = 0; i < ab->hw_params->max_tx_ring; i++)
1266                 kfree(dp->tx_ring[i].tx_status);
1267
1268         ath12k_dp_rx_free(ab);
1269         /* Deinit any SOC level resource */
1270 }
1271
1272 void ath12k_dp_cc_config(struct ath12k_base *ab)
1273 {
1274         u32 cmem_base = ab->qmi.dev_mem[ATH12K_QMI_DEVMEM_CMEM_INDEX].start;
1275         u32 reo_base = HAL_SEQ_WCSS_UMAC_REO_REG;
1276         u32 wbm_base = HAL_SEQ_WCSS_UMAC_WBM_REG;
1277         u32 val = 0;
1278
1279         ath12k_hif_write32(ab, reo_base + HAL_REO1_SW_COOKIE_CFG0(ab), cmem_base);
1280
1281         val |= u32_encode_bits(ATH12K_CMEM_ADDR_MSB,
1282                                HAL_REO1_SW_COOKIE_CFG_CMEM_BASE_ADDR_MSB) |
1283                 u32_encode_bits(ATH12K_CC_PPT_MSB,
1284                                 HAL_REO1_SW_COOKIE_CFG_COOKIE_PPT_MSB) |
1285                 u32_encode_bits(ATH12K_CC_SPT_MSB,
1286                                 HAL_REO1_SW_COOKIE_CFG_COOKIE_SPT_MSB) |
1287                 u32_encode_bits(1, HAL_REO1_SW_COOKIE_CFG_ALIGN) |
1288                 u32_encode_bits(1, HAL_REO1_SW_COOKIE_CFG_ENABLE) |
1289                 u32_encode_bits(1, HAL_REO1_SW_COOKIE_CFG_GLOBAL_ENABLE);
1290
1291         ath12k_hif_write32(ab, reo_base + HAL_REO1_SW_COOKIE_CFG1(ab), val);
1292
1293         /* Enable HW CC for WBM */
1294         ath12k_hif_write32(ab, wbm_base + HAL_WBM_SW_COOKIE_CFG0, cmem_base);
1295
1296         val = u32_encode_bits(ATH12K_CMEM_ADDR_MSB,
1297                               HAL_WBM_SW_COOKIE_CFG_CMEM_BASE_ADDR_MSB) |
1298                 u32_encode_bits(ATH12K_CC_PPT_MSB,
1299                                 HAL_WBM_SW_COOKIE_CFG_COOKIE_PPT_MSB) |
1300                 u32_encode_bits(ATH12K_CC_SPT_MSB,
1301                                 HAL_WBM_SW_COOKIE_CFG_COOKIE_SPT_MSB) |
1302                 u32_encode_bits(1, HAL_WBM_SW_COOKIE_CFG_ALIGN);
1303
1304         ath12k_hif_write32(ab, wbm_base + HAL_WBM_SW_COOKIE_CFG1, val);
1305
1306         /* Enable conversion complete indication */
1307         val = ath12k_hif_read32(ab, wbm_base + HAL_WBM_SW_COOKIE_CFG2);
1308         val |= u32_encode_bits(1, HAL_WBM_SW_COOKIE_CFG_RELEASE_PATH_EN) |
1309                 u32_encode_bits(1, HAL_WBM_SW_COOKIE_CFG_ERR_PATH_EN) |
1310                 u32_encode_bits(1, HAL_WBM_SW_COOKIE_CFG_CONV_IND_EN);
1311
1312         ath12k_hif_write32(ab, wbm_base + HAL_WBM_SW_COOKIE_CFG2, val);
1313
1314         /* Enable Cookie conversion for WBM2SW Rings */
1315         val = ath12k_hif_read32(ab, wbm_base + HAL_WBM_SW_COOKIE_CONVERT_CFG);
1316         val |= u32_encode_bits(1, HAL_WBM_SW_COOKIE_CONV_CFG_GLOBAL_EN) |
1317                ab->hw_params->hal_params->wbm2sw_cc_enable;
1318
1319         ath12k_hif_write32(ab, wbm_base + HAL_WBM_SW_COOKIE_CONVERT_CFG, val);
1320 }
1321
1322 static u32 ath12k_dp_cc_cookie_gen(u16 ppt_idx, u16 spt_idx)
1323 {
1324         return (u32)ppt_idx << ATH12K_CC_PPT_SHIFT | spt_idx;
1325 }
1326
1327 static inline void *ath12k_dp_cc_get_desc_addr_ptr(struct ath12k_base *ab,
1328                                                    u16 ppt_idx, u16 spt_idx)
1329 {
1330         struct ath12k_dp *dp = &ab->dp;
1331
1332         return dp->spt_info[ppt_idx].vaddr + spt_idx;
1333 }
1334
1335 struct ath12k_rx_desc_info *ath12k_dp_get_rx_desc(struct ath12k_base *ab,
1336                                                   u32 cookie)
1337 {
1338         struct ath12k_rx_desc_info **desc_addr_ptr;
1339         u16 ppt_idx, spt_idx;
1340
1341         ppt_idx = u32_get_bits(cookie, ATH12K_DP_CC_COOKIE_PPT);
1342         spt_idx = u32_get_bits(cookie, ATH12k_DP_CC_COOKIE_SPT);
1343
1344         if (ppt_idx > ATH12K_NUM_RX_SPT_PAGES ||
1345             spt_idx > ATH12K_MAX_SPT_ENTRIES)
1346                 return NULL;
1347
1348         desc_addr_ptr = ath12k_dp_cc_get_desc_addr_ptr(ab, ppt_idx, spt_idx);
1349
1350         return *desc_addr_ptr;
1351 }
1352
1353 struct ath12k_tx_desc_info *ath12k_dp_get_tx_desc(struct ath12k_base *ab,
1354                                                   u32 cookie)
1355 {
1356         struct ath12k_tx_desc_info **desc_addr_ptr;
1357         u16 ppt_idx, spt_idx;
1358
1359         ppt_idx = u32_get_bits(cookie, ATH12K_DP_CC_COOKIE_PPT);
1360         spt_idx = u32_get_bits(cookie, ATH12k_DP_CC_COOKIE_SPT);
1361
1362         if (ppt_idx < ATH12K_NUM_RX_SPT_PAGES ||
1363             ppt_idx > ab->dp.num_spt_pages ||
1364             spt_idx > ATH12K_MAX_SPT_ENTRIES)
1365                 return NULL;
1366
1367         desc_addr_ptr = ath12k_dp_cc_get_desc_addr_ptr(ab, ppt_idx, spt_idx);
1368
1369         return *desc_addr_ptr;
1370 }
1371
1372 static int ath12k_dp_cc_desc_init(struct ath12k_base *ab)
1373 {
1374         struct ath12k_dp *dp = &ab->dp;
1375         struct ath12k_rx_desc_info *rx_descs, **rx_desc_addr;
1376         struct ath12k_tx_desc_info *tx_descs, **tx_desc_addr;
1377         u32 i, j, pool_id, tx_spt_page;
1378         u32 ppt_idx;
1379
1380         spin_lock_bh(&dp->rx_desc_lock);
1381
1382         /* First ATH12K_NUM_RX_SPT_PAGES of allocated SPT pages are used for RX */
1383         for (i = 0; i < ATH12K_NUM_RX_SPT_PAGES; i++) {
1384                 rx_descs = kcalloc(ATH12K_MAX_SPT_ENTRIES, sizeof(*rx_descs),
1385                                    GFP_ATOMIC);
1386
1387                 if (!rx_descs) {
1388                         spin_unlock_bh(&dp->rx_desc_lock);
1389                         return -ENOMEM;
1390                 }
1391
1392                 dp->spt_info->rxbaddr[i] = &rx_descs[0];
1393
1394                 for (j = 0; j < ATH12K_MAX_SPT_ENTRIES; j++) {
1395                         rx_descs[j].cookie = ath12k_dp_cc_cookie_gen(i, j);
1396                         rx_descs[j].magic = ATH12K_DP_RX_DESC_MAGIC;
1397                         list_add_tail(&rx_descs[j].list, &dp->rx_desc_free_list);
1398
1399                         /* Update descriptor VA in SPT */
1400                         rx_desc_addr = ath12k_dp_cc_get_desc_addr_ptr(ab, i, j);
1401                         *rx_desc_addr = &rx_descs[j];
1402                 }
1403         }
1404
1405         spin_unlock_bh(&dp->rx_desc_lock);
1406
1407         for (pool_id = 0; pool_id < ATH12K_HW_MAX_QUEUES; pool_id++) {
1408                 spin_lock_bh(&dp->tx_desc_lock[pool_id]);
1409                 for (i = 0; i < ATH12K_TX_SPT_PAGES_PER_POOL; i++) {
1410                         tx_descs = kcalloc(ATH12K_MAX_SPT_ENTRIES, sizeof(*tx_descs),
1411                                            GFP_ATOMIC);
1412
1413                         if (!tx_descs) {
1414                                 spin_unlock_bh(&dp->tx_desc_lock[pool_id]);
1415                                 /* Caller takes care of TX pending and RX desc cleanup */
1416                                 return -ENOMEM;
1417                         }
1418
1419                         tx_spt_page = i + pool_id * ATH12K_TX_SPT_PAGES_PER_POOL;
1420                         dp->spt_info->txbaddr[tx_spt_page] = &tx_descs[0];
1421
1422                         for (j = 0; j < ATH12K_MAX_SPT_ENTRIES; j++) {
1423                                 ppt_idx = ATH12K_NUM_RX_SPT_PAGES + tx_spt_page;
1424                                 tx_descs[j].desc_id = ath12k_dp_cc_cookie_gen(ppt_idx, j);
1425                                 tx_descs[j].pool_id = pool_id;
1426                                 list_add_tail(&tx_descs[j].list,
1427                                               &dp->tx_desc_free_list[pool_id]);
1428
1429                                 /* Update descriptor VA in SPT */
1430                                 tx_desc_addr =
1431                                         ath12k_dp_cc_get_desc_addr_ptr(ab, ppt_idx, j);
1432                                 *tx_desc_addr = &tx_descs[j];
1433                         }
1434                 }
1435                 spin_unlock_bh(&dp->tx_desc_lock[pool_id]);
1436         }
1437         return 0;
1438 }
1439
1440 static int ath12k_dp_cc_init(struct ath12k_base *ab)
1441 {
1442         struct ath12k_dp *dp = &ab->dp;
1443         int i, ret = 0;
1444         u32 cmem_base;
1445
1446         INIT_LIST_HEAD(&dp->rx_desc_free_list);
1447         INIT_LIST_HEAD(&dp->rx_desc_used_list);
1448         spin_lock_init(&dp->rx_desc_lock);
1449
1450         for (i = 0; i < ATH12K_HW_MAX_QUEUES; i++) {
1451                 INIT_LIST_HEAD(&dp->tx_desc_free_list[i]);
1452                 INIT_LIST_HEAD(&dp->tx_desc_used_list[i]);
1453                 spin_lock_init(&dp->tx_desc_lock[i]);
1454         }
1455
1456         dp->num_spt_pages = ATH12K_NUM_SPT_PAGES;
1457         if (dp->num_spt_pages > ATH12K_MAX_PPT_ENTRIES)
1458                 dp->num_spt_pages = ATH12K_MAX_PPT_ENTRIES;
1459
1460         dp->spt_info = kcalloc(dp->num_spt_pages, sizeof(struct ath12k_spt_info),
1461                                GFP_KERNEL);
1462
1463         if (!dp->spt_info) {
1464                 ath12k_warn(ab, "SPT page allocation failure");
1465                 return -ENOMEM;
1466         }
1467
1468         cmem_base = ab->qmi.dev_mem[ATH12K_QMI_DEVMEM_CMEM_INDEX].start;
1469
1470         for (i = 0; i < dp->num_spt_pages; i++) {
1471                 dp->spt_info[i].vaddr = dma_alloc_coherent(ab->dev,
1472                                                            ATH12K_PAGE_SIZE,
1473                                                            &dp->spt_info[i].paddr,
1474                                                            GFP_KERNEL);
1475
1476                 if (!dp->spt_info[i].vaddr) {
1477                         ret = -ENOMEM;
1478                         goto free;
1479                 }
1480
1481                 if (dp->spt_info[i].paddr & ATH12K_SPT_4K_ALIGN_CHECK) {
1482                         ath12k_warn(ab, "SPT allocated memory is not 4K aligned");
1483                         ret = -EINVAL;
1484                         goto free;
1485                 }
1486
1487                 /* Write to PPT in CMEM */
1488                 ath12k_hif_write32(ab, cmem_base + ATH12K_PPT_ADDR_OFFSET(i),
1489                                    dp->spt_info[i].paddr >> ATH12K_SPT_4K_ALIGN_OFFSET);
1490         }
1491
1492         ret = ath12k_dp_cc_desc_init(ab);
1493         if (ret) {
1494                 ath12k_warn(ab, "HW CC desc init failed %d", ret);
1495                 goto free;
1496         }
1497
1498         return 0;
1499 free:
1500         ath12k_dp_cc_cleanup(ab);
1501         return ret;
1502 }
1503
1504 static int ath12k_dp_reoq_lut_setup(struct ath12k_base *ab)
1505 {
1506         struct ath12k_dp *dp = &ab->dp;
1507
1508         if (!ab->hw_params->reoq_lut_support)
1509                 return 0;
1510
1511         dp->reoq_lut.vaddr = dma_alloc_coherent(ab->dev,
1512                                                 DP_REOQ_LUT_SIZE,
1513                                                 &dp->reoq_lut.paddr,
1514                                                 GFP_KERNEL | __GFP_ZERO);
1515         if (!dp->reoq_lut.vaddr) {
1516                 ath12k_warn(ab, "failed to allocate memory for reoq table");
1517                 return -ENOMEM;
1518         }
1519
1520         ath12k_hif_write32(ab, HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO1_QDESC_LUT_BASE0(ab),
1521                            dp->reoq_lut.paddr);
1522         return 0;
1523 }
1524
1525 int ath12k_dp_alloc(struct ath12k_base *ab)
1526 {
1527         struct ath12k_dp *dp = &ab->dp;
1528         struct hal_srng *srng = NULL;
1529         size_t size = 0;
1530         u32 n_link_desc = 0;
1531         int ret;
1532         int i;
1533
1534         dp->ab = ab;
1535
1536         INIT_LIST_HEAD(&dp->reo_cmd_list);
1537         INIT_LIST_HEAD(&dp->reo_cmd_cache_flush_list);
1538         spin_lock_init(&dp->reo_cmd_lock);
1539
1540         dp->reo_cmd_cache_flush_count = 0;
1541
1542         ret = ath12k_wbm_idle_ring_setup(ab, &n_link_desc);
1543         if (ret) {
1544                 ath12k_warn(ab, "failed to setup wbm_idle_ring: %d\n", ret);
1545                 return ret;
1546         }
1547
1548         srng = &ab->hal.srng_list[dp->wbm_idle_ring.ring_id];
1549
1550         ret = ath12k_dp_link_desc_setup(ab, dp->link_desc_banks,
1551                                         HAL_WBM_IDLE_LINK, srng, n_link_desc);
1552         if (ret) {
1553                 ath12k_warn(ab, "failed to setup link desc: %d\n", ret);
1554                 return ret;
1555         }
1556
1557         ret = ath12k_dp_cc_init(ab);
1558
1559         if (ret) {
1560                 ath12k_warn(ab, "failed to setup cookie converter %d\n", ret);
1561                 goto fail_link_desc_cleanup;
1562         }
1563         ret = ath12k_dp_init_bank_profiles(ab);
1564         if (ret) {
1565                 ath12k_warn(ab, "failed to setup bank profiles %d\n", ret);
1566                 goto fail_hw_cc_cleanup;
1567         }
1568
1569         ret = ath12k_dp_srng_common_setup(ab);
1570         if (ret)
1571                 goto fail_dp_bank_profiles_cleanup;
1572
1573         size = sizeof(struct hal_wbm_release_ring_tx) * DP_TX_COMP_RING_SIZE;
1574
1575         ret = ath12k_dp_reoq_lut_setup(ab);
1576         if (ret) {
1577                 ath12k_warn(ab, "failed to setup reoq table %d\n", ret);
1578                 goto fail_cmn_srng_cleanup;
1579         }
1580
1581         for (i = 0; i < ab->hw_params->max_tx_ring; i++) {
1582                 dp->tx_ring[i].tcl_data_ring_id = i;
1583
1584                 dp->tx_ring[i].tx_status_head = 0;
1585                 dp->tx_ring[i].tx_status_tail = DP_TX_COMP_RING_SIZE - 1;
1586                 dp->tx_ring[i].tx_status = kmalloc(size, GFP_KERNEL);
1587                 if (!dp->tx_ring[i].tx_status) {
1588                         ret = -ENOMEM;
1589                         /* FIXME: The allocated tx status is not freed
1590                          * properly here
1591                          */
1592                         goto fail_cmn_reoq_cleanup;
1593                 }
1594         }
1595
1596         for (i = 0; i < HAL_DSCP_TID_MAP_TBL_NUM_ENTRIES_MAX; i++)
1597                 ath12k_hal_tx_set_dscp_tid_map(ab, i);
1598
1599         ret = ath12k_dp_rx_alloc(ab);
1600         if (ret)
1601                 goto fail_dp_rx_free;
1602
1603         /* Init any SOC level resource for DP */
1604
1605         return 0;
1606
1607 fail_dp_rx_free:
1608         ath12k_dp_rx_free(ab);
1609
1610 fail_cmn_reoq_cleanup:
1611         ath12k_dp_reoq_lut_cleanup(ab);
1612
1613 fail_cmn_srng_cleanup:
1614         ath12k_dp_srng_common_cleanup(ab);
1615
1616 fail_dp_bank_profiles_cleanup:
1617         ath12k_dp_deinit_bank_profiles(ab);
1618
1619 fail_hw_cc_cleanup:
1620         ath12k_dp_cc_cleanup(ab);
1621
1622 fail_link_desc_cleanup:
1623         ath12k_dp_link_desc_cleanup(ab, dp->link_desc_banks,
1624                                     HAL_WBM_IDLE_LINK, &dp->wbm_idle_ring);
1625
1626         return ret;
1627 }
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