1 // SPDX-License-Identifier: BSD-3-Clause-Clear 2 /* 3 * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved. 4 * Copyright (c) 2021-2025 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 enum ath12k_dp_desc_type { 18 ATH12K_DP_TX_DESC, 19 ATH12K_DP_RX_DESC, 20 }; 21 22 static void ath12k_dp_htt_htc_tx_complete(struct ath12k_base *ab, 23 struct sk_buff *skb) 24 { 25 dev_kfree_skb_any(skb); 26 } 27 28 void ath12k_dp_peer_cleanup(struct ath12k *ar, int vdev_id, const u8 *addr) 29 { 30 struct ath12k_base *ab = ar->ab; 31 struct ath12k_peer *peer; 32 33 /* TODO: Any other peer specific DP cleanup */ 34 35 spin_lock_bh(&ab->base_lock); 36 peer = ath12k_peer_find(ab, vdev_id, addr); 37 if (!peer) { 38 ath12k_warn(ab, "failed to lookup peer %pM on vdev %d\n", 39 addr, vdev_id); 40 spin_unlock_bh(&ab->base_lock); 41 return; 42 } 43 44 if (!peer->primary_link) { 45 spin_unlock_bh(&ab->base_lock); 46 return; 47 } 48 49 ath12k_dp_rx_peer_tid_cleanup(ar, peer); 50 crypto_free_shash(peer->tfm_mmic); 51 peer->dp_setup_done = false; 52 spin_unlock_bh(&ab->base_lock); 53 } 54 55 int ath12k_dp_peer_setup(struct ath12k *ar, int vdev_id, const u8 *addr) 56 { 57 struct ath12k_base *ab = ar->ab; 58 struct ath12k_peer *peer; 59 u32 reo_dest; 60 int ret = 0, tid; 61 62 /* NOTE: reo_dest ring id starts from 1 unlike mac_id which starts from 0 */ 63 reo_dest = ar->dp.mac_id + 1; 64 ret = ath12k_wmi_set_peer_param(ar, addr, vdev_id, 65 WMI_PEER_SET_DEFAULT_ROUTING, 66 DP_RX_HASH_ENABLE | (reo_dest << 1)); 67 68 if (ret) { 69 ath12k_warn(ab, "failed to set default routing %d peer :%pM vdev_id :%d\n", 70 ret, addr, vdev_id); 71 return ret; 72 } 73 74 for (tid = 0; tid <= IEEE80211_NUM_TIDS; tid++) { 75 ret = ath12k_dp_rx_peer_tid_setup(ar, addr, vdev_id, tid, 1, 0, 76 HAL_PN_TYPE_NONE); 77 if (ret) { 78 ath12k_warn(ab, "failed to setup rxd tid queue for tid %d: %d\n", 79 tid, ret); 80 goto peer_clean; 81 } 82 } 83 84 ret = ath12k_dp_rx_peer_frag_setup(ar, addr, vdev_id); 85 if (ret) { 86 ath12k_warn(ab, "failed to setup rx defrag context\n"); 87 goto peer_clean; 88 } 89 90 /* TODO: Setup other peer specific resource used in data path */ 91 92 return 0; 93 94 peer_clean: 95 spin_lock_bh(&ab->base_lock); 96 97 peer = ath12k_peer_find(ab, vdev_id, addr); 98 if (!peer) { 99 ath12k_warn(ab, "failed to find the peer to del rx tid\n"); 100 spin_unlock_bh(&ab->base_lock); 101 return -ENOENT; 102 } 103 104 for (tid--; tid >= 0; tid--) 105 ath12k_dp_rx_peer_tid_delete(ar, peer, tid); 106 107 spin_unlock_bh(&ab->base_lock); 108 109 return ret; 110 } 111 112 void ath12k_dp_srng_cleanup(struct ath12k_base *ab, struct dp_srng *ring) 113 { 114 if (!ring->vaddr_unaligned) 115 return; 116 117 dma_free_coherent(ab->dev, ring->size, ring->vaddr_unaligned, 118 ring->paddr_unaligned); 119 120 ring->vaddr_unaligned = NULL; 121 } 122 123 static int ath12k_dp_srng_find_ring_in_mask(int ring_num, const u8 *grp_mask) 124 { 125 int ext_group_num; 126 u8 mask = 1 << ring_num; 127 128 for (ext_group_num = 0; ext_group_num < ATH12K_EXT_IRQ_GRP_NUM_MAX; 129 ext_group_num++) { 130 if (mask & grp_mask[ext_group_num]) 131 return ext_group_num; 132 } 133 134 return -ENOENT; 135 } 136 137 static int ath12k_dp_srng_calculate_msi_group(struct ath12k_base *ab, 138 enum hal_ring_type type, int ring_num) 139 { 140 const struct ath12k_hal_tcl_to_wbm_rbm_map *map; 141 const u8 *grp_mask; 142 int i; 143 144 switch (type) { 145 case HAL_WBM2SW_RELEASE: 146 if (ring_num == HAL_WBM2SW_REL_ERR_RING_NUM) { 147 grp_mask = &ab->hw_params->ring_mask->rx_wbm_rel[0]; 148 ring_num = 0; 149 } else { 150 map = ab->hw_params->hal_ops->tcl_to_wbm_rbm_map; 151 for (i = 0; i < ab->hw_params->max_tx_ring; i++) { 152 if (ring_num == map[i].wbm_ring_num) { 153 ring_num = i; 154 break; 155 } 156 } 157 158 grp_mask = &ab->hw_params->ring_mask->tx[0]; 159 } 160 break; 161 case HAL_REO_EXCEPTION: 162 grp_mask = &ab->hw_params->ring_mask->rx_err[0]; 163 break; 164 case HAL_REO_DST: 165 grp_mask = &ab->hw_params->ring_mask->rx[0]; 166 break; 167 case HAL_REO_STATUS: 168 grp_mask = &ab->hw_params->ring_mask->reo_status[0]; 169 break; 170 case HAL_RXDMA_MONITOR_STATUS: 171 grp_mask = &ab->hw_params->ring_mask->rx_mon_status[0]; 172 break; 173 case HAL_RXDMA_MONITOR_DST: 174 grp_mask = &ab->hw_params->ring_mask->rx_mon_dest[0]; 175 break; 176 case HAL_TX_MONITOR_DST: 177 grp_mask = &ab->hw_params->ring_mask->tx_mon_dest[0]; 178 break; 179 case HAL_RXDMA_BUF: 180 grp_mask = &ab->hw_params->ring_mask->host2rxdma[0]; 181 break; 182 case HAL_RXDMA_MONITOR_BUF: 183 case HAL_TCL_DATA: 184 case HAL_TCL_CMD: 185 case HAL_REO_CMD: 186 case HAL_SW2WBM_RELEASE: 187 case HAL_WBM_IDLE_LINK: 188 case HAL_TCL_STATUS: 189 case HAL_REO_REINJECT: 190 case HAL_CE_SRC: 191 case HAL_CE_DST: 192 case HAL_CE_DST_STATUS: 193 default: 194 return -ENOENT; 195 } 196 197 return ath12k_dp_srng_find_ring_in_mask(ring_num, grp_mask); 198 } 199 200 static void ath12k_dp_srng_msi_setup(struct ath12k_base *ab, 201 struct hal_srng_params *ring_params, 202 enum hal_ring_type type, int ring_num) 203 { 204 int msi_group_number, msi_data_count; 205 u32 msi_data_start, msi_irq_start, addr_lo, addr_hi; 206 int ret; 207 208 ret = ath12k_hif_get_user_msi_vector(ab, "DP", 209 &msi_data_count, &msi_data_start, 210 &msi_irq_start); 211 if (ret) 212 return; 213 214 msi_group_number = ath12k_dp_srng_calculate_msi_group(ab, type, 215 ring_num); 216 if (msi_group_number < 0) { 217 ath12k_dbg(ab, ATH12K_DBG_PCI, 218 "ring not part of an ext_group; ring_type: %d,ring_num %d", 219 type, ring_num); 220 ring_params->msi_addr = 0; 221 ring_params->msi_data = 0; 222 return; 223 } 224 225 if (msi_group_number > msi_data_count) { 226 ath12k_dbg(ab, ATH12K_DBG_PCI, 227 "multiple msi_groups share one msi, msi_group_num %d", 228 msi_group_number); 229 } 230 231 ath12k_hif_get_msi_address(ab, &addr_lo, &addr_hi); 232 233 ring_params->msi_addr = addr_lo; 234 ring_params->msi_addr |= (dma_addr_t)(((uint64_t)addr_hi) << 32); 235 ring_params->msi_data = (msi_group_number % msi_data_count) 236 + msi_data_start; 237 ring_params->flags |= HAL_SRNG_FLAGS_MSI_INTR; 238 } 239 240 int ath12k_dp_srng_setup(struct ath12k_base *ab, struct dp_srng *ring, 241 enum hal_ring_type type, int ring_num, 242 int mac_id, int num_entries) 243 { 244 struct hal_srng_params params = {}; 245 int entry_sz = ath12k_hal_srng_get_entrysize(ab, type); 246 int max_entries = ath12k_hal_srng_get_max_entries(ab, type); 247 int ret; 248 249 if (max_entries < 0 || entry_sz < 0) 250 return -EINVAL; 251 252 if (num_entries > max_entries) 253 num_entries = max_entries; 254 255 ring->size = (num_entries * entry_sz) + HAL_RING_BASE_ALIGN - 1; 256 ring->vaddr_unaligned = dma_alloc_coherent(ab->dev, ring->size, 257 &ring->paddr_unaligned, 258 GFP_KERNEL); 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 ath12k_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 params.low_threshold = num_entries >> 3; 280 params.flags |= HAL_SRNG_FLAGS_LOW_THRESH_INTR_EN; 281 params.intr_batch_cntr_thres_entries = 0; 282 params.intr_timer_thres_us = HAL_SRNG_INT_TIMER_THRESHOLD_RX; 283 break; 284 case HAL_RXDMA_MONITOR_STATUS: 285 params.low_threshold = num_entries >> 3; 286 params.flags |= HAL_SRNG_FLAGS_LOW_THRESH_INTR_EN; 287 params.intr_batch_cntr_thres_entries = 1; 288 params.intr_timer_thres_us = HAL_SRNG_INT_TIMER_THRESHOLD_RX; 289 break; 290 case HAL_TX_MONITOR_DST: 291 params.low_threshold = DP_TX_MONITOR_BUF_SIZE_MAX >> 3; 292 params.flags |= HAL_SRNG_FLAGS_LOW_THRESH_INTR_EN; 293 params.intr_batch_cntr_thres_entries = 0; 294 params.intr_timer_thres_us = HAL_SRNG_INT_TIMER_THRESHOLD_RX; 295 break; 296 case HAL_WBM2SW_RELEASE: 297 if (ab->hw_params->hw_ops->dp_srng_is_tx_comp_ring(ring_num)) { 298 params.intr_batch_cntr_thres_entries = 299 HAL_SRNG_INT_BATCH_THRESHOLD_TX; 300 params.intr_timer_thres_us = 301 HAL_SRNG_INT_TIMER_THRESHOLD_TX; 302 break; 303 } 304 /* follow through when ring_num != HAL_WBM2SW_REL_ERR_RING_NUM */ 305 fallthrough; 306 case HAL_REO_EXCEPTION: 307 case HAL_REO_REINJECT: 308 case HAL_REO_CMD: 309 case HAL_REO_STATUS: 310 case HAL_TCL_DATA: 311 case HAL_TCL_CMD: 312 case HAL_TCL_STATUS: 313 case HAL_WBM_IDLE_LINK: 314 case HAL_SW2WBM_RELEASE: 315 case HAL_RXDMA_DST: 316 case HAL_RXDMA_MONITOR_DST: 317 case HAL_RXDMA_MONITOR_DESC: 318 params.intr_batch_cntr_thres_entries = 319 HAL_SRNG_INT_BATCH_THRESHOLD_OTHER; 320 params.intr_timer_thres_us = HAL_SRNG_INT_TIMER_THRESHOLD_OTHER; 321 break; 322 case HAL_RXDMA_DIR_BUF: 323 break; 324 default: 325 ath12k_warn(ab, "Not a valid ring type in dp :%d\n", type); 326 return -EINVAL; 327 } 328 329 ret = ath12k_hal_srng_setup(ab, type, ring_num, mac_id, ¶ms); 330 if (ret < 0) { 331 ath12k_warn(ab, "failed to setup srng: %d ring_id %d\n", 332 ret, ring_num); 333 return ret; 334 } 335 336 ring->ring_id = ret; 337 338 return 0; 339 } 340 341 static 342 u32 ath12k_dp_tx_get_vdev_bank_config(struct ath12k_base *ab, 343 struct ath12k_link_vif *arvif) 344 { 345 u32 bank_config = 0; 346 struct ath12k_vif *ahvif = arvif->ahvif; 347 348 /* Only valid for raw frames with HW crypto enabled. 349 * With SW crypto, mac80211 sets key per packet 350 */ 351 if (ahvif->tx_encap_type == HAL_TCL_ENCAP_TYPE_RAW && 352 test_bit(ATH12K_FLAG_HW_CRYPTO_DISABLED, &ab->dev_flags)) 353 bank_config |= 354 u32_encode_bits(ath12k_dp_tx_get_encrypt_type(ahvif->key_cipher), 355 HAL_TX_BANK_CONFIG_ENCRYPT_TYPE); 356 357 bank_config |= u32_encode_bits(ahvif->tx_encap_type, 358 HAL_TX_BANK_CONFIG_ENCAP_TYPE); 359 bank_config |= u32_encode_bits(0, HAL_TX_BANK_CONFIG_SRC_BUFFER_SWAP) | 360 u32_encode_bits(0, HAL_TX_BANK_CONFIG_LINK_META_SWAP) | 361 u32_encode_bits(0, HAL_TX_BANK_CONFIG_EPD); 362 363 /* only valid if idx_lookup_override is not set in tcl_data_cmd */ 364 if (ahvif->vdev_type == WMI_VDEV_TYPE_STA) 365 bank_config |= u32_encode_bits(1, HAL_TX_BANK_CONFIG_INDEX_LOOKUP_EN); 366 else 367 bank_config |= u32_encode_bits(0, HAL_TX_BANK_CONFIG_INDEX_LOOKUP_EN); 368 369 bank_config |= u32_encode_bits(arvif->hal_addr_search_flags & HAL_TX_ADDRX_EN, 370 HAL_TX_BANK_CONFIG_ADDRX_EN) | 371 u32_encode_bits(!!(arvif->hal_addr_search_flags & 372 HAL_TX_ADDRY_EN), 373 HAL_TX_BANK_CONFIG_ADDRY_EN); 374 375 bank_config |= u32_encode_bits(ieee80211_vif_is_mesh(ahvif->vif) ? 3 : 0, 376 HAL_TX_BANK_CONFIG_MESH_EN) | 377 u32_encode_bits(arvif->vdev_id_check_en, 378 HAL_TX_BANK_CONFIG_VDEV_ID_CHECK_EN); 379 380 bank_config |= u32_encode_bits(0, HAL_TX_BANK_CONFIG_DSCP_TIP_MAP_ID); 381 382 return bank_config; 383 } 384 385 static int ath12k_dp_tx_get_bank_profile(struct ath12k_base *ab, 386 struct ath12k_link_vif *arvif, 387 struct ath12k_dp *dp) 388 { 389 int bank_id = DP_INVALID_BANK_ID; 390 int i; 391 u32 bank_config; 392 bool configure_register = false; 393 394 /* convert vdev params into hal_tx_bank_config */ 395 bank_config = ath12k_dp_tx_get_vdev_bank_config(ab, arvif); 396 397 spin_lock_bh(&dp->tx_bank_lock); 398 /* TODO: implement using idr kernel framework*/ 399 for (i = 0; i < dp->num_bank_profiles; i++) { 400 if (dp->bank_profiles[i].is_configured && 401 (dp->bank_profiles[i].bank_config ^ bank_config) == 0) { 402 bank_id = i; 403 goto inc_ref_and_return; 404 } 405 if (!dp->bank_profiles[i].is_configured || 406 !dp->bank_profiles[i].num_users) { 407 bank_id = i; 408 goto configure_and_return; 409 } 410 } 411 412 if (bank_id == DP_INVALID_BANK_ID) { 413 spin_unlock_bh(&dp->tx_bank_lock); 414 ath12k_err(ab, "unable to find TX bank!"); 415 return bank_id; 416 } 417 418 configure_and_return: 419 dp->bank_profiles[bank_id].is_configured = true; 420 dp->bank_profiles[bank_id].bank_config = bank_config; 421 configure_register = true; 422 inc_ref_and_return: 423 dp->bank_profiles[bank_id].num_users++; 424 spin_unlock_bh(&dp->tx_bank_lock); 425 426 if (configure_register) 427 ath12k_hal_tx_configure_bank_register(ab, bank_config, bank_id); 428 429 ath12k_dbg(ab, ATH12K_DBG_DP_HTT, "dp_htt tcl bank_id %d input 0x%x match 0x%x num_users %u", 430 bank_id, bank_config, dp->bank_profiles[bank_id].bank_config, 431 dp->bank_profiles[bank_id].num_users); 432 433 return bank_id; 434 } 435 436 void ath12k_dp_tx_put_bank_profile(struct ath12k_dp *dp, u8 bank_id) 437 { 438 spin_lock_bh(&dp->tx_bank_lock); 439 dp->bank_profiles[bank_id].num_users--; 440 spin_unlock_bh(&dp->tx_bank_lock); 441 } 442 443 static void ath12k_dp_deinit_bank_profiles(struct ath12k_base *ab) 444 { 445 struct ath12k_dp *dp = &ab->dp; 446 447 kfree(dp->bank_profiles); 448 dp->bank_profiles = NULL; 449 } 450 451 static int ath12k_dp_init_bank_profiles(struct ath12k_base *ab) 452 { 453 struct ath12k_dp *dp = &ab->dp; 454 u32 num_tcl_banks = ab->hw_params->num_tcl_banks; 455 int i; 456 457 dp->num_bank_profiles = num_tcl_banks; 458 dp->bank_profiles = kmalloc_array(num_tcl_banks, 459 sizeof(struct ath12k_dp_tx_bank_profile), 460 GFP_KERNEL); 461 if (!dp->bank_profiles) 462 return -ENOMEM; 463 464 spin_lock_init(&dp->tx_bank_lock); 465 466 for (i = 0; i < num_tcl_banks; i++) { 467 dp->bank_profiles[i].is_configured = false; 468 dp->bank_profiles[i].num_users = 0; 469 } 470 471 return 0; 472 } 473 474 static void ath12k_dp_srng_common_cleanup(struct ath12k_base *ab) 475 { 476 struct ath12k_dp *dp = &ab->dp; 477 int i; 478 479 ath12k_dp_srng_cleanup(ab, &dp->reo_status_ring); 480 ath12k_dp_srng_cleanup(ab, &dp->reo_cmd_ring); 481 ath12k_dp_srng_cleanup(ab, &dp->reo_except_ring); 482 ath12k_dp_srng_cleanup(ab, &dp->rx_rel_ring); 483 ath12k_dp_srng_cleanup(ab, &dp->reo_reinject_ring); 484 for (i = 0; i < ab->hw_params->max_tx_ring; i++) { 485 ath12k_dp_srng_cleanup(ab, &dp->tx_ring[i].tcl_comp_ring); 486 ath12k_dp_srng_cleanup(ab, &dp->tx_ring[i].tcl_data_ring); 487 } 488 ath12k_dp_srng_cleanup(ab, &dp->wbm_desc_rel_ring); 489 } 490 491 static int ath12k_dp_srng_common_setup(struct ath12k_base *ab) 492 { 493 struct ath12k_dp *dp = &ab->dp; 494 const struct ath12k_hal_tcl_to_wbm_rbm_map *map; 495 struct hal_srng *srng; 496 int i, ret, tx_comp_ring_num; 497 u32 ring_hash_map; 498 499 ret = ath12k_dp_srng_setup(ab, &dp->wbm_desc_rel_ring, 500 HAL_SW2WBM_RELEASE, 0, 0, 501 DP_WBM_RELEASE_RING_SIZE); 502 if (ret) { 503 ath12k_warn(ab, "failed to set up wbm2sw_release ring :%d\n", 504 ret); 505 goto err; 506 } 507 508 for (i = 0; i < ab->hw_params->max_tx_ring; i++) { 509 map = ab->hw_params->hal_ops->tcl_to_wbm_rbm_map; 510 tx_comp_ring_num = map[i].wbm_ring_num; 511 512 ret = ath12k_dp_srng_setup(ab, &dp->tx_ring[i].tcl_data_ring, 513 HAL_TCL_DATA, i, 0, 514 DP_TCL_DATA_RING_SIZE); 515 if (ret) { 516 ath12k_warn(ab, "failed to set up tcl_data ring (%d) :%d\n", 517 i, ret); 518 goto err; 519 } 520 521 ret = ath12k_dp_srng_setup(ab, &dp->tx_ring[i].tcl_comp_ring, 522 HAL_WBM2SW_RELEASE, tx_comp_ring_num, 0, 523 DP_TX_COMP_RING_SIZE(ab)); 524 if (ret) { 525 ath12k_warn(ab, "failed to set up tcl_comp ring (%d) :%d\n", 526 tx_comp_ring_num, ret); 527 goto err; 528 } 529 } 530 531 ret = ath12k_dp_srng_setup(ab, &dp->reo_reinject_ring, HAL_REO_REINJECT, 532 0, 0, DP_REO_REINJECT_RING_SIZE); 533 if (ret) { 534 ath12k_warn(ab, "failed to set up reo_reinject ring :%d\n", 535 ret); 536 goto err; 537 } 538 539 ret = ath12k_dp_srng_setup(ab, &dp->rx_rel_ring, HAL_WBM2SW_RELEASE, 540 HAL_WBM2SW_REL_ERR_RING_NUM, 0, 541 DP_RX_RELEASE_RING_SIZE); 542 if (ret) { 543 ath12k_warn(ab, "failed to set up rx_rel ring :%d\n", ret); 544 goto err; 545 } 546 547 ret = ath12k_dp_srng_setup(ab, &dp->reo_except_ring, HAL_REO_EXCEPTION, 548 0, 0, DP_REO_EXCEPTION_RING_SIZE); 549 if (ret) { 550 ath12k_warn(ab, "failed to set up reo_exception ring :%d\n", 551 ret); 552 goto err; 553 } 554 555 ret = ath12k_dp_srng_setup(ab, &dp->reo_cmd_ring, HAL_REO_CMD, 556 0, 0, DP_REO_CMD_RING_SIZE); 557 if (ret) { 558 ath12k_warn(ab, "failed to set up reo_cmd ring :%d\n", ret); 559 goto err; 560 } 561 562 srng = &ab->hal.srng_list[dp->reo_cmd_ring.ring_id]; 563 ath12k_hal_reo_init_cmd_ring(ab, srng); 564 565 ret = ath12k_dp_srng_setup(ab, &dp->reo_status_ring, HAL_REO_STATUS, 566 0, 0, DP_REO_STATUS_RING_SIZE); 567 if (ret) { 568 ath12k_warn(ab, "failed to set up reo_status ring :%d\n", ret); 569 goto err; 570 } 571 572 /* When hash based routing of rx packet is enabled, 32 entries to map 573 * the hash values to the ring will be configured. Each hash entry uses 574 * four bits to map to a particular ring. The ring mapping will be 575 * 0:TCL, 1:SW1, 2:SW2, 3:SW3, 4:SW4, 5:Release, 6:FW and 7:SW5 576 * 8:SW6, 9:SW7, 10:SW8, 11:Not used. 577 */ 578 ring_hash_map = HAL_HASH_ROUTING_RING_SW1 | 579 HAL_HASH_ROUTING_RING_SW2 << 4 | 580 HAL_HASH_ROUTING_RING_SW3 << 8 | 581 HAL_HASH_ROUTING_RING_SW4 << 12 | 582 HAL_HASH_ROUTING_RING_SW1 << 16 | 583 HAL_HASH_ROUTING_RING_SW2 << 20 | 584 HAL_HASH_ROUTING_RING_SW3 << 24 | 585 HAL_HASH_ROUTING_RING_SW4 << 28; 586 587 ath12k_hal_reo_hw_setup(ab, ring_hash_map); 588 589 return 0; 590 591 err: 592 ath12k_dp_srng_common_cleanup(ab); 593 594 return ret; 595 } 596 597 static void ath12k_dp_scatter_idle_link_desc_cleanup(struct ath12k_base *ab) 598 { 599 struct ath12k_dp *dp = &ab->dp; 600 struct hal_wbm_idle_scatter_list *slist = dp->scatter_list; 601 int i; 602 603 for (i = 0; i < DP_IDLE_SCATTER_BUFS_MAX; i++) { 604 if (!slist[i].vaddr) 605 continue; 606 607 dma_free_coherent(ab->dev, HAL_WBM_IDLE_SCATTER_BUF_SIZE_MAX, 608 slist[i].vaddr, slist[i].paddr); 609 slist[i].vaddr = NULL; 610 } 611 } 612 613 static int ath12k_dp_scatter_idle_link_desc_setup(struct ath12k_base *ab, 614 int size, 615 u32 n_link_desc_bank, 616 u32 n_link_desc, 617 u32 last_bank_sz) 618 { 619 struct ath12k_dp *dp = &ab->dp; 620 struct dp_link_desc_bank *link_desc_banks = dp->link_desc_banks; 621 struct hal_wbm_idle_scatter_list *slist = dp->scatter_list; 622 u32 n_entries_per_buf; 623 int num_scatter_buf, scatter_idx; 624 struct hal_wbm_link_desc *scatter_buf; 625 int align_bytes, n_entries; 626 dma_addr_t paddr; 627 int rem_entries; 628 int i; 629 int ret = 0; 630 u32 end_offset, cookie; 631 enum hal_rx_buf_return_buf_manager rbm = dp->idle_link_rbm; 632 633 n_entries_per_buf = HAL_WBM_IDLE_SCATTER_BUF_SIZE / 634 ath12k_hal_srng_get_entrysize(ab, HAL_WBM_IDLE_LINK); 635 num_scatter_buf = DIV_ROUND_UP(size, HAL_WBM_IDLE_SCATTER_BUF_SIZE); 636 637 if (num_scatter_buf > DP_IDLE_SCATTER_BUFS_MAX) 638 return -EINVAL; 639 640 for (i = 0; i < num_scatter_buf; i++) { 641 slist[i].vaddr = dma_alloc_coherent(ab->dev, 642 HAL_WBM_IDLE_SCATTER_BUF_SIZE_MAX, 643 &slist[i].paddr, GFP_KERNEL); 644 if (!slist[i].vaddr) { 645 ret = -ENOMEM; 646 goto err; 647 } 648 } 649 650 scatter_idx = 0; 651 scatter_buf = slist[scatter_idx].vaddr; 652 rem_entries = n_entries_per_buf; 653 654 for (i = 0; i < n_link_desc_bank; i++) { 655 align_bytes = link_desc_banks[i].vaddr - 656 link_desc_banks[i].vaddr_unaligned; 657 n_entries = (DP_LINK_DESC_ALLOC_SIZE_THRESH - align_bytes) / 658 HAL_LINK_DESC_SIZE; 659 paddr = link_desc_banks[i].paddr; 660 while (n_entries) { 661 cookie = DP_LINK_DESC_COOKIE_SET(n_entries, i); 662 ath12k_hal_set_link_desc_addr(scatter_buf, cookie, 663 paddr, rbm); 664 n_entries--; 665 paddr += HAL_LINK_DESC_SIZE; 666 if (rem_entries) { 667 rem_entries--; 668 scatter_buf++; 669 continue; 670 } 671 672 rem_entries = n_entries_per_buf; 673 scatter_idx++; 674 scatter_buf = slist[scatter_idx].vaddr; 675 } 676 } 677 678 end_offset = (scatter_buf - slist[scatter_idx].vaddr) * 679 sizeof(struct hal_wbm_link_desc); 680 ath12k_hal_setup_link_idle_list(ab, slist, num_scatter_buf, 681 n_link_desc, end_offset); 682 683 return 0; 684 685 err: 686 ath12k_dp_scatter_idle_link_desc_cleanup(ab); 687 688 return ret; 689 } 690 691 static void 692 ath12k_dp_link_desc_bank_free(struct ath12k_base *ab, 693 struct dp_link_desc_bank *link_desc_banks) 694 { 695 int i; 696 697 for (i = 0; i < DP_LINK_DESC_BANKS_MAX; i++) { 698 if (link_desc_banks[i].vaddr_unaligned) { 699 dma_free_coherent(ab->dev, 700 link_desc_banks[i].size, 701 link_desc_banks[i].vaddr_unaligned, 702 link_desc_banks[i].paddr_unaligned); 703 link_desc_banks[i].vaddr_unaligned = NULL; 704 } 705 } 706 } 707 708 static int ath12k_dp_link_desc_bank_alloc(struct ath12k_base *ab, 709 struct dp_link_desc_bank *desc_bank, 710 int n_link_desc_bank, 711 int last_bank_sz) 712 { 713 struct ath12k_dp *dp = &ab->dp; 714 int i; 715 int ret = 0; 716 int desc_sz = DP_LINK_DESC_ALLOC_SIZE_THRESH; 717 718 for (i = 0; i < n_link_desc_bank; i++) { 719 if (i == (n_link_desc_bank - 1) && last_bank_sz) 720 desc_sz = last_bank_sz; 721 722 desc_bank[i].vaddr_unaligned = 723 dma_alloc_coherent(ab->dev, desc_sz, 724 &desc_bank[i].paddr_unaligned, 725 GFP_KERNEL); 726 if (!desc_bank[i].vaddr_unaligned) { 727 ret = -ENOMEM; 728 goto err; 729 } 730 731 desc_bank[i].vaddr = PTR_ALIGN(desc_bank[i].vaddr_unaligned, 732 HAL_LINK_DESC_ALIGN); 733 desc_bank[i].paddr = desc_bank[i].paddr_unaligned + 734 ((unsigned long)desc_bank[i].vaddr - 735 (unsigned long)desc_bank[i].vaddr_unaligned); 736 desc_bank[i].size = desc_sz; 737 } 738 739 return 0; 740 741 err: 742 ath12k_dp_link_desc_bank_free(ab, dp->link_desc_banks); 743 744 return ret; 745 } 746 747 void ath12k_dp_link_desc_cleanup(struct ath12k_base *ab, 748 struct dp_link_desc_bank *desc_bank, 749 u32 ring_type, struct dp_srng *ring) 750 { 751 ath12k_dp_link_desc_bank_free(ab, desc_bank); 752 753 if (ring_type != HAL_RXDMA_MONITOR_DESC) { 754 ath12k_dp_srng_cleanup(ab, ring); 755 ath12k_dp_scatter_idle_link_desc_cleanup(ab); 756 } 757 } 758 759 static int ath12k_wbm_idle_ring_setup(struct ath12k_base *ab, u32 *n_link_desc) 760 { 761 struct ath12k_dp *dp = &ab->dp; 762 u32 n_mpdu_link_desc, n_mpdu_queue_desc; 763 u32 n_tx_msdu_link_desc, n_rx_msdu_link_desc; 764 int ret = 0; 765 766 n_mpdu_link_desc = (DP_NUM_TIDS_MAX * DP_AVG_MPDUS_PER_TID_MAX) / 767 HAL_NUM_MPDUS_PER_LINK_DESC; 768 769 n_mpdu_queue_desc = n_mpdu_link_desc / 770 HAL_NUM_MPDU_LINKS_PER_QUEUE_DESC; 771 772 n_tx_msdu_link_desc = (DP_NUM_TIDS_MAX * DP_AVG_FLOWS_PER_TID * 773 DP_AVG_MSDUS_PER_FLOW) / 774 HAL_NUM_TX_MSDUS_PER_LINK_DESC; 775 776 n_rx_msdu_link_desc = (DP_NUM_TIDS_MAX * DP_AVG_MPDUS_PER_TID_MAX * 777 DP_AVG_MSDUS_PER_MPDU) / 778 HAL_NUM_RX_MSDUS_PER_LINK_DESC; 779 780 *n_link_desc = n_mpdu_link_desc + n_mpdu_queue_desc + 781 n_tx_msdu_link_desc + n_rx_msdu_link_desc; 782 783 if (*n_link_desc & (*n_link_desc - 1)) 784 *n_link_desc = 1 << fls(*n_link_desc); 785 786 ret = ath12k_dp_srng_setup(ab, &dp->wbm_idle_ring, 787 HAL_WBM_IDLE_LINK, 0, 0, *n_link_desc); 788 if (ret) { 789 ath12k_warn(ab, "failed to setup wbm_idle_ring: %d\n", ret); 790 return ret; 791 } 792 return ret; 793 } 794 795 int ath12k_dp_link_desc_setup(struct ath12k_base *ab, 796 struct dp_link_desc_bank *link_desc_banks, 797 u32 ring_type, struct hal_srng *srng, 798 u32 n_link_desc) 799 { 800 u32 tot_mem_sz; 801 u32 n_link_desc_bank, last_bank_sz; 802 u32 entry_sz, align_bytes, n_entries; 803 struct hal_wbm_link_desc *desc; 804 u32 paddr; 805 int i, ret; 806 u32 cookie; 807 enum hal_rx_buf_return_buf_manager rbm = ab->dp.idle_link_rbm; 808 809 tot_mem_sz = n_link_desc * HAL_LINK_DESC_SIZE; 810 tot_mem_sz += HAL_LINK_DESC_ALIGN; 811 812 if (tot_mem_sz <= DP_LINK_DESC_ALLOC_SIZE_THRESH) { 813 n_link_desc_bank = 1; 814 last_bank_sz = tot_mem_sz; 815 } else { 816 n_link_desc_bank = tot_mem_sz / 817 (DP_LINK_DESC_ALLOC_SIZE_THRESH - 818 HAL_LINK_DESC_ALIGN); 819 last_bank_sz = tot_mem_sz % 820 (DP_LINK_DESC_ALLOC_SIZE_THRESH - 821 HAL_LINK_DESC_ALIGN); 822 823 if (last_bank_sz) 824 n_link_desc_bank += 1; 825 } 826 827 if (n_link_desc_bank > DP_LINK_DESC_BANKS_MAX) 828 return -EINVAL; 829 830 ret = ath12k_dp_link_desc_bank_alloc(ab, link_desc_banks, 831 n_link_desc_bank, last_bank_sz); 832 if (ret) 833 return ret; 834 835 /* Setup link desc idle list for HW internal usage */ 836 entry_sz = ath12k_hal_srng_get_entrysize(ab, ring_type); 837 tot_mem_sz = entry_sz * n_link_desc; 838 839 /* Setup scatter desc list when the total memory requirement is more */ 840 if (tot_mem_sz > DP_LINK_DESC_ALLOC_SIZE_THRESH && 841 ring_type != HAL_RXDMA_MONITOR_DESC) { 842 ret = ath12k_dp_scatter_idle_link_desc_setup(ab, tot_mem_sz, 843 n_link_desc_bank, 844 n_link_desc, 845 last_bank_sz); 846 if (ret) { 847 ath12k_warn(ab, "failed to setup scatting idle list descriptor :%d\n", 848 ret); 849 goto fail_desc_bank_free; 850 } 851 852 return 0; 853 } 854 855 spin_lock_bh(&srng->lock); 856 857 ath12k_hal_srng_access_begin(ab, srng); 858 859 for (i = 0; i < n_link_desc_bank; i++) { 860 align_bytes = link_desc_banks[i].vaddr - 861 link_desc_banks[i].vaddr_unaligned; 862 n_entries = (link_desc_banks[i].size - align_bytes) / 863 HAL_LINK_DESC_SIZE; 864 paddr = link_desc_banks[i].paddr; 865 while (n_entries && 866 (desc = ath12k_hal_srng_src_get_next_entry(ab, srng))) { 867 cookie = DP_LINK_DESC_COOKIE_SET(n_entries, i); 868 ath12k_hal_set_link_desc_addr(desc, cookie, paddr, rbm); 869 n_entries--; 870 paddr += HAL_LINK_DESC_SIZE; 871 } 872 } 873 874 ath12k_hal_srng_access_end(ab, srng); 875 876 spin_unlock_bh(&srng->lock); 877 878 return 0; 879 880 fail_desc_bank_free: 881 ath12k_dp_link_desc_bank_free(ab, link_desc_banks); 882 883 return ret; 884 } 885 886 int ath12k_dp_service_srng(struct ath12k_base *ab, 887 struct ath12k_ext_irq_grp *irq_grp, 888 int budget) 889 { 890 struct napi_struct *napi = &irq_grp->napi; 891 int grp_id = irq_grp->grp_id; 892 int work_done = 0; 893 int i = 0, j; 894 int tot_work_done = 0; 895 enum dp_monitor_mode monitor_mode; 896 u8 ring_mask; 897 898 if (ab->hw_params->ring_mask->tx[grp_id]) { 899 i = fls(ab->hw_params->ring_mask->tx[grp_id]) - 1; 900 ath12k_dp_tx_completion_handler(ab, i); 901 } 902 903 if (ab->hw_params->ring_mask->rx_err[grp_id]) { 904 work_done = ath12k_dp_rx_process_err(ab, napi, budget); 905 budget -= work_done; 906 tot_work_done += work_done; 907 if (budget <= 0) 908 goto done; 909 } 910 911 if (ab->hw_params->ring_mask->rx_wbm_rel[grp_id]) { 912 work_done = ath12k_dp_rx_process_wbm_err(ab, 913 napi, 914 budget); 915 budget -= work_done; 916 tot_work_done += work_done; 917 918 if (budget <= 0) 919 goto done; 920 } 921 922 if (ab->hw_params->ring_mask->rx[grp_id]) { 923 i = fls(ab->hw_params->ring_mask->rx[grp_id]) - 1; 924 work_done = ath12k_dp_rx_process(ab, i, napi, 925 budget); 926 budget -= work_done; 927 tot_work_done += work_done; 928 if (budget <= 0) 929 goto done; 930 } 931 932 if (ab->hw_params->ring_mask->rx_mon_status[grp_id]) { 933 ring_mask = ab->hw_params->ring_mask->rx_mon_status[grp_id]; 934 for (i = 0; i < ab->num_radios; i++) { 935 for (j = 0; j < ab->hw_params->num_rxdma_per_pdev; j++) { 936 int id = i * ab->hw_params->num_rxdma_per_pdev + j; 937 938 if (ring_mask & BIT(id)) { 939 work_done = 940 ath12k_dp_mon_process_ring(ab, id, napi, budget, 941 0); 942 budget -= work_done; 943 tot_work_done += work_done; 944 if (budget <= 0) 945 goto done; 946 } 947 } 948 } 949 } 950 951 if (ab->hw_params->ring_mask->rx_mon_dest[grp_id]) { 952 monitor_mode = ATH12K_DP_RX_MONITOR_MODE; 953 ring_mask = ab->hw_params->ring_mask->rx_mon_dest[grp_id]; 954 for (i = 0; i < ab->num_radios; i++) { 955 for (j = 0; j < ab->hw_params->num_rxdma_per_pdev; j++) { 956 int id = i * ab->hw_params->num_rxdma_per_pdev + j; 957 958 if (ring_mask & BIT(id)) { 959 work_done = 960 ath12k_dp_mon_process_ring(ab, id, napi, budget, 961 monitor_mode); 962 budget -= work_done; 963 tot_work_done += work_done; 964 965 if (budget <= 0) 966 goto done; 967 } 968 } 969 } 970 } 971 972 if (ab->hw_params->ring_mask->tx_mon_dest[grp_id]) { 973 monitor_mode = ATH12K_DP_TX_MONITOR_MODE; 974 ring_mask = ab->hw_params->ring_mask->tx_mon_dest[grp_id]; 975 for (i = 0; i < ab->num_radios; i++) { 976 for (j = 0; j < ab->hw_params->num_rxdma_per_pdev; j++) { 977 int id = i * ab->hw_params->num_rxdma_per_pdev + j; 978 979 if (ring_mask & BIT(id)) { 980 work_done = 981 ath12k_dp_mon_process_ring(ab, id, napi, budget, 982 monitor_mode); 983 budget -= work_done; 984 tot_work_done += work_done; 985 986 if (budget <= 0) 987 goto done; 988 } 989 } 990 } 991 } 992 993 if (ab->hw_params->ring_mask->reo_status[grp_id]) 994 ath12k_dp_rx_process_reo_status(ab); 995 996 if (ab->hw_params->ring_mask->host2rxdma[grp_id]) { 997 struct ath12k_dp *dp = &ab->dp; 998 struct dp_rxdma_ring *rx_ring = &dp->rx_refill_buf_ring; 999 LIST_HEAD(list); 1000 1001 ath12k_dp_rx_bufs_replenish(ab, rx_ring, &list, 0); 1002 } 1003 1004 /* TODO: Implement handler for other interrupts */ 1005 1006 done: 1007 return tot_work_done; 1008 } 1009 1010 void ath12k_dp_pdev_free(struct ath12k_base *ab) 1011 { 1012 int i; 1013 1014 for (i = 0; i < ab->num_radios; i++) 1015 ath12k_dp_rx_pdev_free(ab, i); 1016 } 1017 1018 void ath12k_dp_pdev_pre_alloc(struct ath12k *ar) 1019 { 1020 struct ath12k_pdev_dp *dp = &ar->dp; 1021 1022 dp->mac_id = ar->pdev_idx; 1023 atomic_set(&dp->num_tx_pending, 0); 1024 init_waitqueue_head(&dp->tx_empty_waitq); 1025 /* TODO: Add any RXDMA setup required per pdev */ 1026 } 1027 1028 bool ath12k_dp_wmask_compaction_rx_tlv_supported(struct ath12k_base *ab) 1029 { 1030 if (test_bit(WMI_TLV_SERVICE_WMSK_COMPACTION_RX_TLVS, ab->wmi_ab.svc_map) && 1031 ab->hw_params->hal_ops->rxdma_ring_wmask_rx_mpdu_start && 1032 ab->hw_params->hal_ops->rxdma_ring_wmask_rx_msdu_end && 1033 ab->hw_params->hal_ops->get_hal_rx_compact_ops) { 1034 return true; 1035 } 1036 return false; 1037 } 1038 1039 void ath12k_dp_hal_rx_desc_init(struct ath12k_base *ab) 1040 { 1041 if (ath12k_dp_wmask_compaction_rx_tlv_supported(ab)) { 1042 /* RX TLVS compaction is supported, hence change the hal_rx_ops 1043 * to compact hal_rx_ops. 1044 */ 1045 ab->hal_rx_ops = ab->hw_params->hal_ops->get_hal_rx_compact_ops(); 1046 } 1047 ab->hal.hal_desc_sz = 1048 ab->hal_rx_ops->rx_desc_get_desc_size(); 1049 } 1050 1051 int ath12k_dp_pdev_alloc(struct ath12k_base *ab) 1052 { 1053 struct ath12k *ar; 1054 int ret; 1055 int i; 1056 1057 ret = ath12k_dp_rx_htt_setup(ab); 1058 if (ret) 1059 goto out; 1060 1061 /* TODO: Per-pdev rx ring unlike tx ring which is mapped to different AC's */ 1062 for (i = 0; i < ab->num_radios; i++) { 1063 ar = ab->pdevs[i].ar; 1064 ret = ath12k_dp_rx_pdev_alloc(ab, i); 1065 if (ret) { 1066 ath12k_warn(ab, "failed to allocate pdev rx for pdev_id :%d\n", 1067 i); 1068 goto err; 1069 } 1070 ret = ath12k_dp_rx_pdev_mon_attach(ar); 1071 if (ret) { 1072 ath12k_warn(ab, "failed to initialize mon pdev %d\n", i); 1073 goto err; 1074 } 1075 } 1076 1077 return 0; 1078 err: 1079 ath12k_dp_pdev_free(ab); 1080 out: 1081 return ret; 1082 } 1083 1084 int ath12k_dp_htt_connect(struct ath12k_dp *dp) 1085 { 1086 struct ath12k_htc_svc_conn_req conn_req = {}; 1087 struct ath12k_htc_svc_conn_resp conn_resp = {}; 1088 int status; 1089 1090 conn_req.ep_ops.ep_tx_complete = ath12k_dp_htt_htc_tx_complete; 1091 conn_req.ep_ops.ep_rx_complete = ath12k_dp_htt_htc_t2h_msg_handler; 1092 1093 /* connect to control service */ 1094 conn_req.service_id = ATH12K_HTC_SVC_ID_HTT_DATA_MSG; 1095 1096 status = ath12k_htc_connect_service(&dp->ab->htc, &conn_req, 1097 &conn_resp); 1098 1099 if (status) 1100 return status; 1101 1102 dp->eid = conn_resp.eid; 1103 1104 return 0; 1105 } 1106 1107 static void ath12k_dp_update_vdev_search(struct ath12k_link_vif *arvif) 1108 { 1109 switch (arvif->ahvif->vdev_type) { 1110 case WMI_VDEV_TYPE_STA: 1111 arvif->hal_addr_search_flags = HAL_TX_ADDRY_EN; 1112 arvif->search_type = HAL_TX_ADDR_SEARCH_INDEX; 1113 break; 1114 case WMI_VDEV_TYPE_AP: 1115 case WMI_VDEV_TYPE_IBSS: 1116 arvif->hal_addr_search_flags = HAL_TX_ADDRX_EN; 1117 arvif->search_type = HAL_TX_ADDR_SEARCH_DEFAULT; 1118 break; 1119 case WMI_VDEV_TYPE_MONITOR: 1120 default: 1121 return; 1122 } 1123 } 1124 1125 void ath12k_dp_vdev_tx_attach(struct ath12k *ar, struct ath12k_link_vif *arvif) 1126 { 1127 struct ath12k_base *ab = ar->ab; 1128 1129 arvif->tcl_metadata |= u32_encode_bits(1, HTT_TCL_META_DATA_TYPE) | 1130 u32_encode_bits(arvif->vdev_id, 1131 HTT_TCL_META_DATA_VDEV_ID) | 1132 u32_encode_bits(ar->pdev->pdev_id, 1133 HTT_TCL_META_DATA_PDEV_ID); 1134 1135 /* set HTT extension valid bit to 0 by default */ 1136 arvif->tcl_metadata &= ~HTT_TCL_META_DATA_VALID_HTT; 1137 1138 ath12k_dp_update_vdev_search(arvif); 1139 arvif->vdev_id_check_en = true; 1140 arvif->bank_id = ath12k_dp_tx_get_bank_profile(ab, arvif, &ab->dp); 1141 1142 /* TODO: error path for bank id failure */ 1143 if (arvif->bank_id == DP_INVALID_BANK_ID) { 1144 ath12k_err(ar->ab, "Failed to initialize DP TX Banks"); 1145 return; 1146 } 1147 } 1148 1149 static void ath12k_dp_cc_cleanup(struct ath12k_base *ab) 1150 { 1151 struct ath12k_rx_desc_info *desc_info; 1152 struct ath12k_tx_desc_info *tx_desc_info, *tmp1; 1153 struct ath12k_dp *dp = &ab->dp; 1154 struct ath12k_skb_cb *skb_cb; 1155 struct sk_buff *skb; 1156 struct ath12k *ar; 1157 int i, j; 1158 u32 pool_id, tx_spt_page; 1159 1160 if (!dp->spt_info) 1161 return; 1162 1163 /* RX Descriptor cleanup */ 1164 spin_lock_bh(&dp->rx_desc_lock); 1165 1166 if (dp->rxbaddr) { 1167 for (i = 0; i < ATH12K_NUM_RX_SPT_PAGES(ab); i++) { 1168 if (!dp->rxbaddr[i]) 1169 continue; 1170 1171 desc_info = dp->rxbaddr[i]; 1172 1173 for (j = 0; j < ATH12K_MAX_SPT_ENTRIES; j++) { 1174 if (!desc_info[j].in_use) { 1175 list_del(&desc_info[j].list); 1176 continue; 1177 } 1178 1179 skb = desc_info[j].skb; 1180 if (!skb) 1181 continue; 1182 1183 dma_unmap_single(ab->dev, 1184 ATH12K_SKB_RXCB(skb)->paddr, 1185 skb->len + skb_tailroom(skb), 1186 DMA_FROM_DEVICE); 1187 dev_kfree_skb_any(skb); 1188 } 1189 1190 kfree(dp->rxbaddr[i]); 1191 dp->rxbaddr[i] = NULL; 1192 } 1193 1194 kfree(dp->rxbaddr); 1195 dp->rxbaddr = NULL; 1196 } 1197 1198 spin_unlock_bh(&dp->rx_desc_lock); 1199 1200 /* TX Descriptor cleanup */ 1201 for (i = 0; i < ATH12K_HW_MAX_QUEUES; i++) { 1202 spin_lock_bh(&dp->tx_desc_lock[i]); 1203 1204 list_for_each_entry_safe(tx_desc_info, tmp1, 1205 &dp->tx_desc_used_list[i], list) { 1206 list_del(&tx_desc_info->list); 1207 skb = tx_desc_info->skb; 1208 1209 if (!skb) 1210 continue; 1211 1212 skb_cb = ATH12K_SKB_CB(skb); 1213 if (skb_cb->paddr_ext_desc) { 1214 dma_unmap_single(ab->dev, 1215 skb_cb->paddr_ext_desc, 1216 tx_desc_info->skb_ext_desc->len, 1217 DMA_TO_DEVICE); 1218 dev_kfree_skb_any(tx_desc_info->skb_ext_desc); 1219 } 1220 1221 /* if we are unregistering, hw would've been destroyed and 1222 * ar is no longer valid. 1223 */ 1224 if (!(test_bit(ATH12K_FLAG_UNREGISTERING, &ab->dev_flags))) { 1225 ar = skb_cb->ar; 1226 1227 if (atomic_dec_and_test(&ar->dp.num_tx_pending)) 1228 wake_up(&ar->dp.tx_empty_waitq); 1229 } 1230 1231 dma_unmap_single(ab->dev, ATH12K_SKB_CB(skb)->paddr, 1232 skb->len, DMA_TO_DEVICE); 1233 dev_kfree_skb_any(skb); 1234 } 1235 1236 spin_unlock_bh(&dp->tx_desc_lock[i]); 1237 } 1238 1239 if (dp->txbaddr) { 1240 for (pool_id = 0; pool_id < ATH12K_HW_MAX_QUEUES; pool_id++) { 1241 spin_lock_bh(&dp->tx_desc_lock[pool_id]); 1242 1243 for (i = 0; i < ATH12K_TX_SPT_PAGES_PER_POOL(ab); i++) { 1244 tx_spt_page = i + pool_id * 1245 ATH12K_TX_SPT_PAGES_PER_POOL(ab); 1246 if (!dp->txbaddr[tx_spt_page]) 1247 continue; 1248 1249 kfree(dp->txbaddr[tx_spt_page]); 1250 dp->txbaddr[tx_spt_page] = NULL; 1251 } 1252 1253 spin_unlock_bh(&dp->tx_desc_lock[pool_id]); 1254 } 1255 1256 kfree(dp->txbaddr); 1257 dp->txbaddr = NULL; 1258 } 1259 1260 /* unmap SPT pages */ 1261 for (i = 0; i < dp->num_spt_pages; i++) { 1262 if (!dp->spt_info[i].vaddr) 1263 continue; 1264 1265 dma_free_coherent(ab->dev, ATH12K_PAGE_SIZE, 1266 dp->spt_info[i].vaddr, dp->spt_info[i].paddr); 1267 dp->spt_info[i].vaddr = NULL; 1268 } 1269 1270 kfree(dp->spt_info); 1271 dp->spt_info = NULL; 1272 } 1273 1274 static void ath12k_dp_reoq_lut_cleanup(struct ath12k_base *ab) 1275 { 1276 struct ath12k_dp *dp = &ab->dp; 1277 1278 if (!ab->hw_params->reoq_lut_support) 1279 return; 1280 1281 if (dp->reoq_lut.vaddr_unaligned) { 1282 ath12k_hif_write32(ab, 1283 HAL_SEQ_WCSS_UMAC_REO_REG + 1284 HAL_REO1_QDESC_LUT_BASE0(ab), 0); 1285 dma_free_coherent(ab->dev, dp->reoq_lut.size, 1286 dp->reoq_lut.vaddr_unaligned, 1287 dp->reoq_lut.paddr_unaligned); 1288 dp->reoq_lut.vaddr_unaligned = NULL; 1289 } 1290 1291 if (dp->ml_reoq_lut.vaddr_unaligned) { 1292 ath12k_hif_write32(ab, 1293 HAL_SEQ_WCSS_UMAC_REO_REG + 1294 HAL_REO1_QDESC_LUT_BASE1(ab), 0); 1295 dma_free_coherent(ab->dev, dp->ml_reoq_lut.size, 1296 dp->ml_reoq_lut.vaddr_unaligned, 1297 dp->ml_reoq_lut.paddr_unaligned); 1298 dp->ml_reoq_lut.vaddr_unaligned = NULL; 1299 } 1300 } 1301 1302 void ath12k_dp_free(struct ath12k_base *ab) 1303 { 1304 struct ath12k_dp *dp = &ab->dp; 1305 int i; 1306 1307 if (!dp->ab) 1308 return; 1309 1310 ath12k_dp_link_desc_cleanup(ab, dp->link_desc_banks, 1311 HAL_WBM_IDLE_LINK, &dp->wbm_idle_ring); 1312 1313 ath12k_dp_cc_cleanup(ab); 1314 ath12k_dp_reoq_lut_cleanup(ab); 1315 ath12k_dp_deinit_bank_profiles(ab); 1316 ath12k_dp_srng_common_cleanup(ab); 1317 1318 ath12k_dp_rx_reo_cmd_list_cleanup(ab); 1319 1320 for (i = 0; i < ab->hw_params->max_tx_ring; i++) { 1321 kfree(dp->tx_ring[i].tx_status); 1322 dp->tx_ring[i].tx_status = NULL; 1323 } 1324 1325 ath12k_dp_rx_free(ab); 1326 /* Deinit any SOC level resource */ 1327 dp->ab = NULL; 1328 } 1329 1330 void ath12k_dp_cc_config(struct ath12k_base *ab) 1331 { 1332 u32 cmem_base = ab->qmi.dev_mem[ATH12K_QMI_DEVMEM_CMEM_INDEX].start; 1333 u32 reo_base = HAL_SEQ_WCSS_UMAC_REO_REG; 1334 u32 wbm_base = HAL_SEQ_WCSS_UMAC_WBM_REG; 1335 u32 val = 0; 1336 1337 if (ath12k_ftm_mode) 1338 return; 1339 1340 ath12k_hif_write32(ab, reo_base + HAL_REO1_SW_COOKIE_CFG0(ab), cmem_base); 1341 1342 val |= u32_encode_bits(ATH12K_CMEM_ADDR_MSB, 1343 HAL_REO1_SW_COOKIE_CFG_CMEM_BASE_ADDR_MSB) | 1344 u32_encode_bits(ATH12K_CC_PPT_MSB, 1345 HAL_REO1_SW_COOKIE_CFG_COOKIE_PPT_MSB) | 1346 u32_encode_bits(ATH12K_CC_SPT_MSB, 1347 HAL_REO1_SW_COOKIE_CFG_COOKIE_SPT_MSB) | 1348 u32_encode_bits(1, HAL_REO1_SW_COOKIE_CFG_ALIGN) | 1349 u32_encode_bits(1, HAL_REO1_SW_COOKIE_CFG_ENABLE) | 1350 u32_encode_bits(1, HAL_REO1_SW_COOKIE_CFG_GLOBAL_ENABLE); 1351 1352 ath12k_hif_write32(ab, reo_base + HAL_REO1_SW_COOKIE_CFG1(ab), val); 1353 1354 /* Enable HW CC for WBM */ 1355 ath12k_hif_write32(ab, wbm_base + HAL_WBM_SW_COOKIE_CFG0, cmem_base); 1356 1357 val = u32_encode_bits(ATH12K_CMEM_ADDR_MSB, 1358 HAL_WBM_SW_COOKIE_CFG_CMEM_BASE_ADDR_MSB) | 1359 u32_encode_bits(ATH12K_CC_PPT_MSB, 1360 HAL_WBM_SW_COOKIE_CFG_COOKIE_PPT_MSB) | 1361 u32_encode_bits(ATH12K_CC_SPT_MSB, 1362 HAL_WBM_SW_COOKIE_CFG_COOKIE_SPT_MSB) | 1363 u32_encode_bits(1, HAL_WBM_SW_COOKIE_CFG_ALIGN); 1364 1365 ath12k_hif_write32(ab, wbm_base + HAL_WBM_SW_COOKIE_CFG1, val); 1366 1367 /* Enable conversion complete indication */ 1368 val = ath12k_hif_read32(ab, wbm_base + HAL_WBM_SW_COOKIE_CFG2); 1369 val |= u32_encode_bits(1, HAL_WBM_SW_COOKIE_CFG_RELEASE_PATH_EN) | 1370 u32_encode_bits(1, HAL_WBM_SW_COOKIE_CFG_ERR_PATH_EN) | 1371 u32_encode_bits(1, HAL_WBM_SW_COOKIE_CFG_CONV_IND_EN); 1372 1373 ath12k_hif_write32(ab, wbm_base + HAL_WBM_SW_COOKIE_CFG2, val); 1374 1375 /* Enable Cookie conversion for WBM2SW Rings */ 1376 val = ath12k_hif_read32(ab, wbm_base + HAL_WBM_SW_COOKIE_CONVERT_CFG); 1377 val |= u32_encode_bits(1, HAL_WBM_SW_COOKIE_CONV_CFG_GLOBAL_EN) | 1378 ab->hw_params->hal_params->wbm2sw_cc_enable; 1379 1380 ath12k_hif_write32(ab, wbm_base + HAL_WBM_SW_COOKIE_CONVERT_CFG, val); 1381 } 1382 1383 static u32 ath12k_dp_cc_cookie_gen(u16 ppt_idx, u16 spt_idx) 1384 { 1385 return (u32)ppt_idx << ATH12K_CC_PPT_SHIFT | spt_idx; 1386 } 1387 1388 static inline void *ath12k_dp_cc_get_desc_addr_ptr(struct ath12k_base *ab, 1389 u16 ppt_idx, u16 spt_idx) 1390 { 1391 struct ath12k_dp *dp = &ab->dp; 1392 1393 return dp->spt_info[ppt_idx].vaddr + spt_idx; 1394 } 1395 1396 struct ath12k_rx_desc_info *ath12k_dp_get_rx_desc(struct ath12k_base *ab, 1397 u32 cookie) 1398 { 1399 struct ath12k_dp *dp = &ab->dp; 1400 struct ath12k_rx_desc_info **desc_addr_ptr; 1401 u16 start_ppt_idx, end_ppt_idx, ppt_idx, spt_idx; 1402 1403 ppt_idx = u32_get_bits(cookie, ATH12K_DP_CC_COOKIE_PPT); 1404 spt_idx = u32_get_bits(cookie, ATH12K_DP_CC_COOKIE_SPT); 1405 1406 start_ppt_idx = dp->rx_ppt_base + ATH12K_RX_SPT_PAGE_OFFSET(ab); 1407 end_ppt_idx = start_ppt_idx + ATH12K_NUM_RX_SPT_PAGES(ab); 1408 1409 if (ppt_idx < start_ppt_idx || 1410 ppt_idx >= end_ppt_idx || 1411 spt_idx > ATH12K_MAX_SPT_ENTRIES) 1412 return NULL; 1413 1414 ppt_idx = ppt_idx - dp->rx_ppt_base; 1415 desc_addr_ptr = ath12k_dp_cc_get_desc_addr_ptr(ab, ppt_idx, spt_idx); 1416 1417 return *desc_addr_ptr; 1418 } 1419 1420 struct ath12k_tx_desc_info *ath12k_dp_get_tx_desc(struct ath12k_base *ab, 1421 u32 cookie) 1422 { 1423 struct ath12k_tx_desc_info **desc_addr_ptr; 1424 u16 start_ppt_idx, end_ppt_idx, ppt_idx, spt_idx; 1425 1426 ppt_idx = u32_get_bits(cookie, ATH12K_DP_CC_COOKIE_PPT); 1427 spt_idx = u32_get_bits(cookie, ATH12K_DP_CC_COOKIE_SPT); 1428 1429 start_ppt_idx = ATH12K_TX_SPT_PAGE_OFFSET; 1430 end_ppt_idx = start_ppt_idx + 1431 (ATH12K_TX_SPT_PAGES_PER_POOL(ab) * ATH12K_HW_MAX_QUEUES); 1432 1433 if (ppt_idx < start_ppt_idx || 1434 ppt_idx >= end_ppt_idx || 1435 spt_idx > ATH12K_MAX_SPT_ENTRIES) 1436 return NULL; 1437 1438 desc_addr_ptr = ath12k_dp_cc_get_desc_addr_ptr(ab, ppt_idx, spt_idx); 1439 1440 return *desc_addr_ptr; 1441 } 1442 1443 static int ath12k_dp_cc_desc_init(struct ath12k_base *ab) 1444 { 1445 struct ath12k_dp *dp = &ab->dp; 1446 struct ath12k_rx_desc_info *rx_descs, **rx_desc_addr; 1447 struct ath12k_tx_desc_info *tx_descs, **tx_desc_addr; 1448 u32 num_rx_spt_pages = ATH12K_NUM_RX_SPT_PAGES(ab); 1449 u32 i, j, pool_id, tx_spt_page; 1450 u32 ppt_idx, cookie_ppt_idx; 1451 1452 spin_lock_bh(&dp->rx_desc_lock); 1453 1454 dp->rxbaddr = kcalloc(num_rx_spt_pages, 1455 sizeof(struct ath12k_rx_desc_info *), GFP_ATOMIC); 1456 1457 if (!dp->rxbaddr) { 1458 spin_unlock_bh(&dp->rx_desc_lock); 1459 return -ENOMEM; 1460 } 1461 1462 /* First ATH12K_NUM_RX_SPT_PAGES(ab) of allocated SPT pages are used for 1463 * RX 1464 */ 1465 for (i = 0; i < num_rx_spt_pages; i++) { 1466 rx_descs = kcalloc(ATH12K_MAX_SPT_ENTRIES, sizeof(*rx_descs), 1467 GFP_ATOMIC); 1468 1469 if (!rx_descs) { 1470 spin_unlock_bh(&dp->rx_desc_lock); 1471 return -ENOMEM; 1472 } 1473 1474 ppt_idx = ATH12K_RX_SPT_PAGE_OFFSET(ab) + i; 1475 cookie_ppt_idx = dp->rx_ppt_base + ppt_idx; 1476 dp->rxbaddr[i] = &rx_descs[0]; 1477 1478 for (j = 0; j < ATH12K_MAX_SPT_ENTRIES; j++) { 1479 rx_descs[j].cookie = ath12k_dp_cc_cookie_gen(cookie_ppt_idx, j); 1480 rx_descs[j].magic = ATH12K_DP_RX_DESC_MAGIC; 1481 rx_descs[j].device_id = ab->device_id; 1482 list_add_tail(&rx_descs[j].list, &dp->rx_desc_free_list); 1483 1484 /* Update descriptor VA in SPT */ 1485 rx_desc_addr = ath12k_dp_cc_get_desc_addr_ptr(ab, ppt_idx, j); 1486 *rx_desc_addr = &rx_descs[j]; 1487 } 1488 } 1489 1490 spin_unlock_bh(&dp->rx_desc_lock); 1491 1492 dp->txbaddr = kcalloc(ATH12K_NUM_TX_SPT_PAGES(ab), 1493 sizeof(struct ath12k_tx_desc_info *), GFP_ATOMIC); 1494 1495 if (!dp->txbaddr) 1496 return -ENOMEM; 1497 1498 for (pool_id = 0; pool_id < ATH12K_HW_MAX_QUEUES; pool_id++) { 1499 spin_lock_bh(&dp->tx_desc_lock[pool_id]); 1500 for (i = 0; i < ATH12K_TX_SPT_PAGES_PER_POOL(ab); i++) { 1501 tx_descs = kcalloc(ATH12K_MAX_SPT_ENTRIES, sizeof(*tx_descs), 1502 GFP_ATOMIC); 1503 1504 if (!tx_descs) { 1505 spin_unlock_bh(&dp->tx_desc_lock[pool_id]); 1506 /* Caller takes care of TX pending and RX desc cleanup */ 1507 return -ENOMEM; 1508 } 1509 1510 tx_spt_page = i + pool_id * 1511 ATH12K_TX_SPT_PAGES_PER_POOL(ab); 1512 ppt_idx = ATH12K_TX_SPT_PAGE_OFFSET + tx_spt_page; 1513 1514 dp->txbaddr[tx_spt_page] = &tx_descs[0]; 1515 1516 for (j = 0; j < ATH12K_MAX_SPT_ENTRIES; j++) { 1517 tx_descs[j].desc_id = ath12k_dp_cc_cookie_gen(ppt_idx, j); 1518 tx_descs[j].pool_id = pool_id; 1519 list_add_tail(&tx_descs[j].list, 1520 &dp->tx_desc_free_list[pool_id]); 1521 1522 /* Update descriptor VA in SPT */ 1523 tx_desc_addr = 1524 ath12k_dp_cc_get_desc_addr_ptr(ab, ppt_idx, j); 1525 *tx_desc_addr = &tx_descs[j]; 1526 } 1527 } 1528 spin_unlock_bh(&dp->tx_desc_lock[pool_id]); 1529 } 1530 return 0; 1531 } 1532 1533 static int ath12k_dp_cmem_init(struct ath12k_base *ab, 1534 struct ath12k_dp *dp, 1535 enum ath12k_dp_desc_type type) 1536 { 1537 u32 cmem_base; 1538 int i, start, end; 1539 1540 cmem_base = ab->qmi.dev_mem[ATH12K_QMI_DEVMEM_CMEM_INDEX].start; 1541 1542 switch (type) { 1543 case ATH12K_DP_TX_DESC: 1544 start = ATH12K_TX_SPT_PAGE_OFFSET; 1545 end = start + ATH12K_NUM_TX_SPT_PAGES(ab); 1546 break; 1547 case ATH12K_DP_RX_DESC: 1548 cmem_base += ATH12K_PPT_ADDR_OFFSET(dp->rx_ppt_base); 1549 start = ATH12K_RX_SPT_PAGE_OFFSET(ab); 1550 end = start + ATH12K_NUM_RX_SPT_PAGES(ab); 1551 break; 1552 default: 1553 ath12k_err(ab, "invalid descriptor type %d in cmem init\n", type); 1554 return -EINVAL; 1555 } 1556 1557 /* Write to PPT in CMEM */ 1558 for (i = start; i < end; i++) 1559 ath12k_hif_write32(ab, cmem_base + ATH12K_PPT_ADDR_OFFSET(i), 1560 dp->spt_info[i].paddr >> ATH12K_SPT_4K_ALIGN_OFFSET); 1561 1562 return 0; 1563 } 1564 1565 void ath12k_dp_partner_cc_init(struct ath12k_base *ab) 1566 { 1567 struct ath12k_hw_group *ag = ab->ag; 1568 int i; 1569 1570 for (i = 0; i < ag->num_devices; i++) { 1571 if (ag->ab[i] == ab) 1572 continue; 1573 1574 ath12k_dp_cmem_init(ab, &ag->ab[i]->dp, ATH12K_DP_RX_DESC); 1575 } 1576 } 1577 1578 static u32 ath12k_dp_get_num_spt_pages(struct ath12k_base *ab) 1579 { 1580 return ATH12K_NUM_RX_SPT_PAGES(ab) + ATH12K_NUM_TX_SPT_PAGES(ab); 1581 } 1582 1583 static int ath12k_dp_cc_init(struct ath12k_base *ab) 1584 { 1585 struct ath12k_dp *dp = &ab->dp; 1586 int i, ret = 0; 1587 1588 INIT_LIST_HEAD(&dp->rx_desc_free_list); 1589 spin_lock_init(&dp->rx_desc_lock); 1590 1591 for (i = 0; i < ATH12K_HW_MAX_QUEUES; i++) { 1592 INIT_LIST_HEAD(&dp->tx_desc_free_list[i]); 1593 INIT_LIST_HEAD(&dp->tx_desc_used_list[i]); 1594 spin_lock_init(&dp->tx_desc_lock[i]); 1595 } 1596 1597 dp->num_spt_pages = ath12k_dp_get_num_spt_pages(ab); 1598 if (dp->num_spt_pages > ATH12K_MAX_PPT_ENTRIES) 1599 dp->num_spt_pages = ATH12K_MAX_PPT_ENTRIES; 1600 1601 dp->spt_info = kcalloc(dp->num_spt_pages, sizeof(struct ath12k_spt_info), 1602 GFP_KERNEL); 1603 1604 if (!dp->spt_info) { 1605 ath12k_warn(ab, "SPT page allocation failure"); 1606 return -ENOMEM; 1607 } 1608 1609 dp->rx_ppt_base = ab->device_id * ATH12K_NUM_RX_SPT_PAGES(ab); 1610 1611 for (i = 0; i < dp->num_spt_pages; i++) { 1612 dp->spt_info[i].vaddr = dma_alloc_coherent(ab->dev, 1613 ATH12K_PAGE_SIZE, 1614 &dp->spt_info[i].paddr, 1615 GFP_KERNEL); 1616 1617 if (!dp->spt_info[i].vaddr) { 1618 ret = -ENOMEM; 1619 goto free; 1620 } 1621 1622 if (dp->spt_info[i].paddr & ATH12K_SPT_4K_ALIGN_CHECK) { 1623 ath12k_warn(ab, "SPT allocated memory is not 4K aligned"); 1624 ret = -EINVAL; 1625 goto free; 1626 } 1627 } 1628 1629 ret = ath12k_dp_cmem_init(ab, dp, ATH12K_DP_TX_DESC); 1630 if (ret) { 1631 ath12k_warn(ab, "HW CC Tx cmem init failed %d", ret); 1632 goto free; 1633 } 1634 1635 ret = ath12k_dp_cmem_init(ab, dp, ATH12K_DP_RX_DESC); 1636 if (ret) { 1637 ath12k_warn(ab, "HW CC Rx cmem init failed %d", ret); 1638 goto free; 1639 } 1640 1641 ret = ath12k_dp_cc_desc_init(ab); 1642 if (ret) { 1643 ath12k_warn(ab, "HW CC desc init failed %d", ret); 1644 goto free; 1645 } 1646 1647 return 0; 1648 free: 1649 ath12k_dp_cc_cleanup(ab); 1650 return ret; 1651 } 1652 1653 static int ath12k_dp_alloc_reoq_lut(struct ath12k_base *ab, 1654 struct ath12k_reo_q_addr_lut *lut) 1655 { 1656 lut->size = DP_REOQ_LUT_SIZE + HAL_REO_QLUT_ADDR_ALIGN - 1; 1657 lut->vaddr_unaligned = dma_alloc_coherent(ab->dev, lut->size, 1658 &lut->paddr_unaligned, 1659 GFP_KERNEL | __GFP_ZERO); 1660 if (!lut->vaddr_unaligned) 1661 return -ENOMEM; 1662 1663 lut->vaddr = PTR_ALIGN(lut->vaddr_unaligned, HAL_REO_QLUT_ADDR_ALIGN); 1664 lut->paddr = lut->paddr_unaligned + 1665 ((unsigned long)lut->vaddr - (unsigned long)lut->vaddr_unaligned); 1666 return 0; 1667 } 1668 1669 static int ath12k_dp_reoq_lut_setup(struct ath12k_base *ab) 1670 { 1671 struct ath12k_dp *dp = &ab->dp; 1672 u32 val; 1673 int ret; 1674 1675 if (!ab->hw_params->reoq_lut_support) 1676 return 0; 1677 1678 ret = ath12k_dp_alloc_reoq_lut(ab, &dp->reoq_lut); 1679 if (ret) { 1680 ath12k_warn(ab, "failed to allocate memory for reoq table"); 1681 return ret; 1682 } 1683 1684 ret = ath12k_dp_alloc_reoq_lut(ab, &dp->ml_reoq_lut); 1685 if (ret) { 1686 ath12k_warn(ab, "failed to allocate memory for ML reoq table"); 1687 dma_free_coherent(ab->dev, dp->reoq_lut.size, 1688 dp->reoq_lut.vaddr_unaligned, 1689 dp->reoq_lut.paddr_unaligned); 1690 dp->reoq_lut.vaddr_unaligned = NULL; 1691 return ret; 1692 } 1693 1694 /* Bits in the register have address [39:8] LUT base address to be 1695 * allocated such that LSBs are assumed to be zero. Also, current 1696 * design supports paddr up to 4 GB max hence it fits in 32 bit 1697 * register only 1698 */ 1699 1700 ath12k_hif_write32(ab, HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO1_QDESC_LUT_BASE0(ab), 1701 dp->reoq_lut.paddr >> 8); 1702 1703 ath12k_hif_write32(ab, HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO1_QDESC_LUT_BASE1(ab), 1704 dp->ml_reoq_lut.paddr >> 8); 1705 1706 val = ath12k_hif_read32(ab, HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO1_QDESC_ADDR(ab)); 1707 1708 ath12k_hif_write32(ab, HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO1_QDESC_ADDR(ab), 1709 val | HAL_REO_QDESC_ADDR_READ_LUT_ENABLE); 1710 1711 ath12k_hif_write32(ab, HAL_SEQ_WCSS_UMAC_REO_REG + HAL_REO1_QDESC_MAX_PEERID(ab), 1712 HAL_REO_QDESC_MAX_PEERID); 1713 1714 return 0; 1715 } 1716 1717 static enum hal_rx_buf_return_buf_manager 1718 ath12k_dp_get_idle_link_rbm(struct ath12k_base *ab) 1719 { 1720 switch (ab->device_id) { 1721 case 0: 1722 return HAL_RX_BUF_RBM_WBM_DEV0_IDLE_DESC_LIST; 1723 case 1: 1724 return HAL_RX_BUF_RBM_WBM_DEV1_IDLE_DESC_LIST; 1725 case 2: 1726 return HAL_RX_BUF_RBM_WBM_DEV2_IDLE_DESC_LIST; 1727 default: 1728 ath12k_warn(ab, "invalid %d device id, so choose default rbm\n", 1729 ab->device_id); 1730 WARN_ON(1); 1731 return HAL_RX_BUF_RBM_WBM_DEV0_IDLE_DESC_LIST; 1732 } 1733 } 1734 1735 int ath12k_dp_alloc(struct ath12k_base *ab) 1736 { 1737 struct ath12k_dp *dp = &ab->dp; 1738 struct hal_srng *srng = NULL; 1739 size_t size = 0; 1740 u32 n_link_desc = 0; 1741 int ret; 1742 int i; 1743 1744 dp->ab = ab; 1745 1746 INIT_LIST_HEAD(&dp->reo_cmd_list); 1747 INIT_LIST_HEAD(&dp->reo_cmd_cache_flush_list); 1748 spin_lock_init(&dp->reo_cmd_lock); 1749 1750 dp->reo_cmd_cache_flush_count = 0; 1751 dp->idle_link_rbm = ath12k_dp_get_idle_link_rbm(ab); 1752 1753 ret = ath12k_wbm_idle_ring_setup(ab, &n_link_desc); 1754 if (ret) { 1755 ath12k_warn(ab, "failed to setup wbm_idle_ring: %d\n", ret); 1756 return ret; 1757 } 1758 1759 srng = &ab->hal.srng_list[dp->wbm_idle_ring.ring_id]; 1760 1761 ret = ath12k_dp_link_desc_setup(ab, dp->link_desc_banks, 1762 HAL_WBM_IDLE_LINK, srng, n_link_desc); 1763 if (ret) { 1764 ath12k_warn(ab, "failed to setup link desc: %d\n", ret); 1765 return ret; 1766 } 1767 1768 ret = ath12k_dp_cc_init(ab); 1769 1770 if (ret) { 1771 ath12k_warn(ab, "failed to setup cookie converter %d\n", ret); 1772 goto fail_link_desc_cleanup; 1773 } 1774 ret = ath12k_dp_init_bank_profiles(ab); 1775 if (ret) { 1776 ath12k_warn(ab, "failed to setup bank profiles %d\n", ret); 1777 goto fail_hw_cc_cleanup; 1778 } 1779 1780 ret = ath12k_dp_srng_common_setup(ab); 1781 if (ret) 1782 goto fail_dp_bank_profiles_cleanup; 1783 1784 size = sizeof(struct hal_wbm_release_ring_tx) * 1785 DP_TX_COMP_RING_SIZE(ab); 1786 1787 ret = ath12k_dp_reoq_lut_setup(ab); 1788 if (ret) { 1789 ath12k_warn(ab, "failed to setup reoq table %d\n", ret); 1790 goto fail_cmn_srng_cleanup; 1791 } 1792 1793 for (i = 0; i < ab->hw_params->max_tx_ring; i++) { 1794 dp->tx_ring[i].tcl_data_ring_id = i; 1795 1796 dp->tx_ring[i].tx_status_head = 0; 1797 dp->tx_ring[i].tx_status_tail = DP_TX_COMP_RING_SIZE(ab) - 1; 1798 dp->tx_ring[i].tx_status = kmalloc(size, GFP_KERNEL); 1799 if (!dp->tx_ring[i].tx_status) { 1800 ret = -ENOMEM; 1801 /* FIXME: The allocated tx status is not freed 1802 * properly here 1803 */ 1804 goto fail_cmn_reoq_cleanup; 1805 } 1806 } 1807 1808 for (i = 0; i < HAL_DSCP_TID_MAP_TBL_NUM_ENTRIES_MAX; i++) 1809 ath12k_hal_tx_set_dscp_tid_map(ab, i); 1810 1811 ret = ath12k_dp_rx_alloc(ab); 1812 if (ret) 1813 goto fail_dp_rx_free; 1814 1815 /* Init any SOC level resource for DP */ 1816 1817 return 0; 1818 1819 fail_dp_rx_free: 1820 ath12k_dp_rx_free(ab); 1821 1822 fail_cmn_reoq_cleanup: 1823 ath12k_dp_reoq_lut_cleanup(ab); 1824 1825 fail_cmn_srng_cleanup: 1826 ath12k_dp_srng_common_cleanup(ab); 1827 1828 fail_dp_bank_profiles_cleanup: 1829 ath12k_dp_deinit_bank_profiles(ab); 1830 1831 fail_hw_cc_cleanup: 1832 ath12k_dp_cc_cleanup(ab); 1833 1834 fail_link_desc_cleanup: 1835 ath12k_dp_link_desc_cleanup(ab, dp->link_desc_banks, 1836 HAL_WBM_IDLE_LINK, &dp->wbm_idle_ring); 1837 1838 return ret; 1839 } 1840