1 // SPDX-License-Identifier: ISC 2 /* 3 * Copyright (c) 2005-2011 Atheros Communications Inc. 4 * Copyright (c) 2011-2017 Qualcomm Atheros, Inc. 5 */ 6 7 #include <linux/etherdevice.h> 8 #include "htt.h" 9 #include "mac.h" 10 #include "hif.h" 11 #include "txrx.h" 12 #include "debug.h" 13 14 static u8 ath10k_htt_tx_txq_calc_size(size_t count) 15 { 16 int exp; 17 int factor; 18 19 exp = 0; 20 factor = count >> 7; 21 22 while (factor >= 64 && exp < 4) { 23 factor >>= 3; 24 exp++; 25 } 26 27 if (exp == 4) 28 return 0xff; 29 30 if (count > 0) 31 factor = max(1, factor); 32 33 return SM(exp, HTT_TX_Q_STATE_ENTRY_EXP) | 34 SM(factor, HTT_TX_Q_STATE_ENTRY_FACTOR); 35 } 36 37 static void __ath10k_htt_tx_txq_recalc(struct ieee80211_hw *hw, 38 struct ieee80211_txq *txq) 39 { 40 struct ath10k *ar = hw->priv; 41 struct ath10k_sta *arsta; 42 struct ath10k_vif *arvif = (void *)txq->vif->drv_priv; 43 unsigned long frame_cnt; 44 unsigned long byte_cnt; 45 int idx; 46 u32 bit; 47 u16 peer_id; 48 u8 tid; 49 u8 count; 50 51 lockdep_assert_held(&ar->htt.tx_lock); 52 53 if (!ar->htt.tx_q_state.enabled) 54 return; 55 56 if (ar->htt.tx_q_state.mode != HTT_TX_MODE_SWITCH_PUSH_PULL) 57 return; 58 59 if (txq->sta) { 60 arsta = (void *)txq->sta->drv_priv; 61 peer_id = arsta->peer_id; 62 } else { 63 peer_id = arvif->peer_id; 64 } 65 66 tid = txq->tid; 67 bit = BIT(peer_id % 32); 68 idx = peer_id / 32; 69 70 ieee80211_txq_get_depth(txq, &frame_cnt, &byte_cnt); 71 count = ath10k_htt_tx_txq_calc_size(byte_cnt); 72 73 if (unlikely(peer_id >= ar->htt.tx_q_state.num_peers) || 74 unlikely(tid >= ar->htt.tx_q_state.num_tids)) { 75 ath10k_warn(ar, "refusing to update txq for peer_id %hu tid %hhu due to out of bounds\n", 76 peer_id, tid); 77 return; 78 } 79 80 ar->htt.tx_q_state.vaddr->count[tid][peer_id] = count; 81 ar->htt.tx_q_state.vaddr->map[tid][idx] &= ~bit; 82 ar->htt.tx_q_state.vaddr->map[tid][idx] |= count ? bit : 0; 83 84 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx txq state update peer_id %hu tid %hhu count %hhu\n", 85 peer_id, tid, count); 86 } 87 88 static void __ath10k_htt_tx_txq_sync(struct ath10k *ar) 89 { 90 u32 seq; 91 size_t size; 92 93 lockdep_assert_held(&ar->htt.tx_lock); 94 95 if (!ar->htt.tx_q_state.enabled) 96 return; 97 98 if (ar->htt.tx_q_state.mode != HTT_TX_MODE_SWITCH_PUSH_PULL) 99 return; 100 101 seq = le32_to_cpu(ar->htt.tx_q_state.vaddr->seq); 102 seq++; 103 ar->htt.tx_q_state.vaddr->seq = cpu_to_le32(seq); 104 105 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx txq state update commit seq %u\n", 106 seq); 107 108 size = sizeof(*ar->htt.tx_q_state.vaddr); 109 dma_sync_single_for_device(ar->dev, 110 ar->htt.tx_q_state.paddr, 111 size, 112 DMA_TO_DEVICE); 113 } 114 115 void ath10k_htt_tx_txq_recalc(struct ieee80211_hw *hw, 116 struct ieee80211_txq *txq) 117 { 118 struct ath10k *ar = hw->priv; 119 120 spin_lock_bh(&ar->htt.tx_lock); 121 __ath10k_htt_tx_txq_recalc(hw, txq); 122 spin_unlock_bh(&ar->htt.tx_lock); 123 } 124 125 void ath10k_htt_tx_txq_sync(struct ath10k *ar) 126 { 127 spin_lock_bh(&ar->htt.tx_lock); 128 __ath10k_htt_tx_txq_sync(ar); 129 spin_unlock_bh(&ar->htt.tx_lock); 130 } 131 132 void ath10k_htt_tx_txq_update(struct ieee80211_hw *hw, 133 struct ieee80211_txq *txq) 134 { 135 struct ath10k *ar = hw->priv; 136 137 spin_lock_bh(&ar->htt.tx_lock); 138 __ath10k_htt_tx_txq_recalc(hw, txq); 139 __ath10k_htt_tx_txq_sync(ar); 140 spin_unlock_bh(&ar->htt.tx_lock); 141 } 142 143 void ath10k_htt_tx_dec_pending(struct ath10k_htt *htt) 144 { 145 lockdep_assert_held(&htt->tx_lock); 146 147 htt->num_pending_tx--; 148 if (htt->num_pending_tx == htt->max_num_pending_tx - 1) 149 ath10k_mac_tx_unlock(htt->ar, ATH10K_TX_PAUSE_Q_FULL); 150 } 151 152 int ath10k_htt_tx_inc_pending(struct ath10k_htt *htt) 153 { 154 lockdep_assert_held(&htt->tx_lock); 155 156 if (htt->num_pending_tx >= htt->max_num_pending_tx) 157 return -EBUSY; 158 159 htt->num_pending_tx++; 160 if (htt->num_pending_tx == htt->max_num_pending_tx) 161 ath10k_mac_tx_lock(htt->ar, ATH10K_TX_PAUSE_Q_FULL); 162 163 return 0; 164 } 165 166 int ath10k_htt_tx_mgmt_inc_pending(struct ath10k_htt *htt, bool is_mgmt, 167 bool is_presp) 168 { 169 struct ath10k *ar = htt->ar; 170 171 lockdep_assert_held(&htt->tx_lock); 172 173 if (!is_mgmt || !ar->hw_params.max_probe_resp_desc_thres) 174 return 0; 175 176 if (is_presp && 177 ar->hw_params.max_probe_resp_desc_thres < htt->num_pending_mgmt_tx) 178 return -EBUSY; 179 180 htt->num_pending_mgmt_tx++; 181 182 return 0; 183 } 184 185 void ath10k_htt_tx_mgmt_dec_pending(struct ath10k_htt *htt) 186 { 187 lockdep_assert_held(&htt->tx_lock); 188 189 if (!htt->ar->hw_params.max_probe_resp_desc_thres) 190 return; 191 192 htt->num_pending_mgmt_tx--; 193 } 194 195 int ath10k_htt_tx_alloc_msdu_id(struct ath10k_htt *htt, struct sk_buff *skb) 196 { 197 struct ath10k *ar = htt->ar; 198 int ret; 199 200 spin_lock_bh(&htt->tx_lock); 201 ret = idr_alloc(&htt->pending_tx, skb, 0, 202 htt->max_num_pending_tx, GFP_ATOMIC); 203 spin_unlock_bh(&htt->tx_lock); 204 205 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx alloc msdu_id %d\n", ret); 206 207 return ret; 208 } 209 210 void ath10k_htt_tx_free_msdu_id(struct ath10k_htt *htt, u16 msdu_id) 211 { 212 struct ath10k *ar = htt->ar; 213 214 lockdep_assert_held(&htt->tx_lock); 215 216 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx free msdu_id %hu\n", msdu_id); 217 218 idr_remove(&htt->pending_tx, msdu_id); 219 } 220 221 static void ath10k_htt_tx_free_cont_txbuf_32(struct ath10k_htt *htt) 222 { 223 struct ath10k *ar = htt->ar; 224 size_t size; 225 226 if (!htt->txbuf.vaddr_txbuff_32) 227 return; 228 229 size = htt->txbuf.size; 230 dma_free_coherent(ar->dev, size, htt->txbuf.vaddr_txbuff_32, 231 htt->txbuf.paddr); 232 htt->txbuf.vaddr_txbuff_32 = NULL; 233 } 234 235 static int ath10k_htt_tx_alloc_cont_txbuf_32(struct ath10k_htt *htt) 236 { 237 struct ath10k *ar = htt->ar; 238 size_t size; 239 240 size = htt->max_num_pending_tx * 241 sizeof(struct ath10k_htt_txbuf_32); 242 243 htt->txbuf.vaddr_txbuff_32 = dma_alloc_coherent(ar->dev, size, 244 &htt->txbuf.paddr, 245 GFP_KERNEL); 246 if (!htt->txbuf.vaddr_txbuff_32) 247 return -ENOMEM; 248 249 htt->txbuf.size = size; 250 251 return 0; 252 } 253 254 static void ath10k_htt_tx_free_cont_txbuf_64(struct ath10k_htt *htt) 255 { 256 struct ath10k *ar = htt->ar; 257 size_t size; 258 259 if (!htt->txbuf.vaddr_txbuff_64) 260 return; 261 262 size = htt->txbuf.size; 263 dma_free_coherent(ar->dev, size, htt->txbuf.vaddr_txbuff_64, 264 htt->txbuf.paddr); 265 htt->txbuf.vaddr_txbuff_64 = NULL; 266 } 267 268 static int ath10k_htt_tx_alloc_cont_txbuf_64(struct ath10k_htt *htt) 269 { 270 struct ath10k *ar = htt->ar; 271 size_t size; 272 273 size = htt->max_num_pending_tx * 274 sizeof(struct ath10k_htt_txbuf_64); 275 276 htt->txbuf.vaddr_txbuff_64 = dma_alloc_coherent(ar->dev, size, 277 &htt->txbuf.paddr, 278 GFP_KERNEL); 279 if (!htt->txbuf.vaddr_txbuff_64) 280 return -ENOMEM; 281 282 htt->txbuf.size = size; 283 284 return 0; 285 } 286 287 static void ath10k_htt_tx_free_cont_frag_desc_32(struct ath10k_htt *htt) 288 { 289 size_t size; 290 291 if (!htt->frag_desc.vaddr_desc_32) 292 return; 293 294 size = htt->max_num_pending_tx * 295 sizeof(struct htt_msdu_ext_desc); 296 297 dma_free_coherent(htt->ar->dev, 298 size, 299 htt->frag_desc.vaddr_desc_32, 300 htt->frag_desc.paddr); 301 302 htt->frag_desc.vaddr_desc_32 = NULL; 303 } 304 305 static int ath10k_htt_tx_alloc_cont_frag_desc_32(struct ath10k_htt *htt) 306 { 307 struct ath10k *ar = htt->ar; 308 size_t size; 309 310 if (!ar->hw_params.continuous_frag_desc) 311 return 0; 312 313 size = htt->max_num_pending_tx * 314 sizeof(struct htt_msdu_ext_desc); 315 htt->frag_desc.vaddr_desc_32 = dma_alloc_coherent(ar->dev, size, 316 &htt->frag_desc.paddr, 317 GFP_KERNEL); 318 if (!htt->frag_desc.vaddr_desc_32) { 319 ath10k_err(ar, "failed to alloc fragment desc memory\n"); 320 return -ENOMEM; 321 } 322 htt->frag_desc.size = size; 323 324 return 0; 325 } 326 327 static void ath10k_htt_tx_free_cont_frag_desc_64(struct ath10k_htt *htt) 328 { 329 size_t size; 330 331 if (!htt->frag_desc.vaddr_desc_64) 332 return; 333 334 size = htt->max_num_pending_tx * 335 sizeof(struct htt_msdu_ext_desc_64); 336 337 dma_free_coherent(htt->ar->dev, 338 size, 339 htt->frag_desc.vaddr_desc_64, 340 htt->frag_desc.paddr); 341 342 htt->frag_desc.vaddr_desc_64 = NULL; 343 } 344 345 static int ath10k_htt_tx_alloc_cont_frag_desc_64(struct ath10k_htt *htt) 346 { 347 struct ath10k *ar = htt->ar; 348 size_t size; 349 350 if (!ar->hw_params.continuous_frag_desc) 351 return 0; 352 353 size = htt->max_num_pending_tx * 354 sizeof(struct htt_msdu_ext_desc_64); 355 356 htt->frag_desc.vaddr_desc_64 = dma_alloc_coherent(ar->dev, size, 357 &htt->frag_desc.paddr, 358 GFP_KERNEL); 359 if (!htt->frag_desc.vaddr_desc_64) { 360 ath10k_err(ar, "failed to alloc fragment desc memory\n"); 361 return -ENOMEM; 362 } 363 htt->frag_desc.size = size; 364 365 return 0; 366 } 367 368 static void ath10k_htt_tx_free_txq(struct ath10k_htt *htt) 369 { 370 struct ath10k *ar = htt->ar; 371 size_t size; 372 373 if (!test_bit(ATH10K_FW_FEATURE_PEER_FLOW_CONTROL, 374 ar->running_fw->fw_file.fw_features)) 375 return; 376 377 size = sizeof(*htt->tx_q_state.vaddr); 378 379 dma_unmap_single(ar->dev, htt->tx_q_state.paddr, size, DMA_TO_DEVICE); 380 kfree(htt->tx_q_state.vaddr); 381 } 382 383 static int ath10k_htt_tx_alloc_txq(struct ath10k_htt *htt) 384 { 385 struct ath10k *ar = htt->ar; 386 size_t size; 387 int ret; 388 389 if (!test_bit(ATH10K_FW_FEATURE_PEER_FLOW_CONTROL, 390 ar->running_fw->fw_file.fw_features)) 391 return 0; 392 393 htt->tx_q_state.num_peers = HTT_TX_Q_STATE_NUM_PEERS; 394 htt->tx_q_state.num_tids = HTT_TX_Q_STATE_NUM_TIDS; 395 htt->tx_q_state.type = HTT_Q_DEPTH_TYPE_BYTES; 396 397 size = sizeof(*htt->tx_q_state.vaddr); 398 htt->tx_q_state.vaddr = kzalloc(size, GFP_KERNEL); 399 if (!htt->tx_q_state.vaddr) 400 return -ENOMEM; 401 402 htt->tx_q_state.paddr = dma_map_single(ar->dev, htt->tx_q_state.vaddr, 403 size, DMA_TO_DEVICE); 404 ret = dma_mapping_error(ar->dev, htt->tx_q_state.paddr); 405 if (ret) { 406 ath10k_warn(ar, "failed to dma map tx_q_state: %d\n", ret); 407 kfree(htt->tx_q_state.vaddr); 408 return -EIO; 409 } 410 411 return 0; 412 } 413 414 static void ath10k_htt_tx_free_txdone_fifo(struct ath10k_htt *htt) 415 { 416 WARN_ON(!kfifo_is_empty(&htt->txdone_fifo)); 417 kfifo_free(&htt->txdone_fifo); 418 } 419 420 static int ath10k_htt_tx_alloc_txdone_fifo(struct ath10k_htt *htt) 421 { 422 int ret; 423 size_t size; 424 425 size = roundup_pow_of_two(htt->max_num_pending_tx); 426 ret = kfifo_alloc(&htt->txdone_fifo, size, GFP_KERNEL); 427 return ret; 428 } 429 430 static int ath10k_htt_tx_alloc_buf(struct ath10k_htt *htt) 431 { 432 struct ath10k *ar = htt->ar; 433 int ret; 434 435 ret = ath10k_htt_alloc_txbuff(htt); 436 if (ret) { 437 ath10k_err(ar, "failed to alloc cont tx buffer: %d\n", ret); 438 return ret; 439 } 440 441 ret = ath10k_htt_alloc_frag_desc(htt); 442 if (ret) { 443 ath10k_err(ar, "failed to alloc cont frag desc: %d\n", ret); 444 goto free_txbuf; 445 } 446 447 ret = ath10k_htt_tx_alloc_txq(htt); 448 if (ret) { 449 ath10k_err(ar, "failed to alloc txq: %d\n", ret); 450 goto free_frag_desc; 451 } 452 453 ret = ath10k_htt_tx_alloc_txdone_fifo(htt); 454 if (ret) { 455 ath10k_err(ar, "failed to alloc txdone fifo: %d\n", ret); 456 goto free_txq; 457 } 458 459 return 0; 460 461 free_txq: 462 ath10k_htt_tx_free_txq(htt); 463 464 free_frag_desc: 465 ath10k_htt_free_frag_desc(htt); 466 467 free_txbuf: 468 ath10k_htt_free_txbuff(htt); 469 470 return ret; 471 } 472 473 int ath10k_htt_tx_start(struct ath10k_htt *htt) 474 { 475 struct ath10k *ar = htt->ar; 476 int ret; 477 478 ath10k_dbg(ar, ATH10K_DBG_BOOT, "htt tx max num pending tx %d\n", 479 htt->max_num_pending_tx); 480 481 spin_lock_init(&htt->tx_lock); 482 idr_init(&htt->pending_tx); 483 484 if (htt->tx_mem_allocated) 485 return 0; 486 487 if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL) 488 return 0; 489 490 ret = ath10k_htt_tx_alloc_buf(htt); 491 if (ret) 492 goto free_idr_pending_tx; 493 494 htt->tx_mem_allocated = true; 495 496 return 0; 497 498 free_idr_pending_tx: 499 idr_destroy(&htt->pending_tx); 500 501 return ret; 502 } 503 504 static int ath10k_htt_tx_clean_up_pending(int msdu_id, void *skb, void *ctx) 505 { 506 struct ath10k *ar = ctx; 507 struct ath10k_htt *htt = &ar->htt; 508 struct htt_tx_done tx_done = {0}; 509 510 ath10k_dbg(ar, ATH10K_DBG_HTT, "force cleanup msdu_id %hu\n", msdu_id); 511 512 tx_done.msdu_id = msdu_id; 513 tx_done.status = HTT_TX_COMPL_STATE_DISCARD; 514 515 ath10k_txrx_tx_unref(htt, &tx_done); 516 517 return 0; 518 } 519 520 void ath10k_htt_tx_destroy(struct ath10k_htt *htt) 521 { 522 if (!htt->tx_mem_allocated) 523 return; 524 525 ath10k_htt_free_txbuff(htt); 526 ath10k_htt_tx_free_txq(htt); 527 ath10k_htt_free_frag_desc(htt); 528 ath10k_htt_tx_free_txdone_fifo(htt); 529 htt->tx_mem_allocated = false; 530 } 531 532 void ath10k_htt_tx_stop(struct ath10k_htt *htt) 533 { 534 idr_for_each(&htt->pending_tx, ath10k_htt_tx_clean_up_pending, htt->ar); 535 idr_destroy(&htt->pending_tx); 536 } 537 538 void ath10k_htt_tx_free(struct ath10k_htt *htt) 539 { 540 ath10k_htt_tx_stop(htt); 541 ath10k_htt_tx_destroy(htt); 542 } 543 544 void ath10k_htt_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb) 545 { 546 dev_kfree_skb_any(skb); 547 } 548 549 void ath10k_htt_hif_tx_complete(struct ath10k *ar, struct sk_buff *skb) 550 { 551 dev_kfree_skb_any(skb); 552 } 553 EXPORT_SYMBOL(ath10k_htt_hif_tx_complete); 554 555 int ath10k_htt_h2t_ver_req_msg(struct ath10k_htt *htt) 556 { 557 struct ath10k *ar = htt->ar; 558 struct sk_buff *skb; 559 struct htt_cmd *cmd; 560 int len = 0; 561 int ret; 562 563 len += sizeof(cmd->hdr); 564 len += sizeof(cmd->ver_req); 565 566 skb = ath10k_htc_alloc_skb(ar, len); 567 if (!skb) 568 return -ENOMEM; 569 570 skb_put(skb, len); 571 cmd = (struct htt_cmd *)skb->data; 572 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_VERSION_REQ; 573 574 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb); 575 if (ret) { 576 dev_kfree_skb_any(skb); 577 return ret; 578 } 579 580 return 0; 581 } 582 583 int ath10k_htt_h2t_stats_req(struct ath10k_htt *htt, u32 mask, u32 reset_mask, 584 u64 cookie) 585 { 586 struct ath10k *ar = htt->ar; 587 struct htt_stats_req *req; 588 struct sk_buff *skb; 589 struct htt_cmd *cmd; 590 int len = 0, ret; 591 592 len += sizeof(cmd->hdr); 593 len += sizeof(cmd->stats_req); 594 595 skb = ath10k_htc_alloc_skb(ar, len); 596 if (!skb) 597 return -ENOMEM; 598 599 skb_put(skb, len); 600 cmd = (struct htt_cmd *)skb->data; 601 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_STATS_REQ; 602 603 req = &cmd->stats_req; 604 605 memset(req, 0, sizeof(*req)); 606 607 /* currently we support only max 24 bit masks so no need to worry 608 * about endian support 609 */ 610 memcpy(req->upload_types, &mask, 3); 611 memcpy(req->reset_types, &reset_mask, 3); 612 req->stat_type = HTT_STATS_REQ_CFG_STAT_TYPE_INVALID; 613 req->cookie_lsb = cpu_to_le32(cookie & 0xffffffff); 614 req->cookie_msb = cpu_to_le32((cookie & 0xffffffff00000000ULL) >> 32); 615 616 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb); 617 if (ret) { 618 ath10k_warn(ar, "failed to send htt type stats request: %d", 619 ret); 620 dev_kfree_skb_any(skb); 621 return ret; 622 } 623 624 return 0; 625 } 626 627 static int ath10k_htt_send_frag_desc_bank_cfg_32(struct ath10k_htt *htt) 628 { 629 struct ath10k *ar = htt->ar; 630 struct sk_buff *skb; 631 struct htt_cmd *cmd; 632 struct htt_frag_desc_bank_cfg32 *cfg; 633 int ret, size; 634 u8 info; 635 636 if (!ar->hw_params.continuous_frag_desc) 637 return 0; 638 639 if (!htt->frag_desc.paddr) { 640 ath10k_warn(ar, "invalid frag desc memory\n"); 641 return -EINVAL; 642 } 643 644 size = sizeof(cmd->hdr) + sizeof(cmd->frag_desc_bank_cfg32); 645 skb = ath10k_htc_alloc_skb(ar, size); 646 if (!skb) 647 return -ENOMEM; 648 649 skb_put(skb, size); 650 cmd = (struct htt_cmd *)skb->data; 651 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_FRAG_DESC_BANK_CFG; 652 653 info = 0; 654 info |= SM(htt->tx_q_state.type, 655 HTT_FRAG_DESC_BANK_CFG_INFO_Q_STATE_DEPTH_TYPE); 656 657 if (test_bit(ATH10K_FW_FEATURE_PEER_FLOW_CONTROL, 658 ar->running_fw->fw_file.fw_features)) 659 info |= HTT_FRAG_DESC_BANK_CFG_INFO_Q_STATE_VALID; 660 661 cfg = &cmd->frag_desc_bank_cfg32; 662 cfg->info = info; 663 cfg->num_banks = 1; 664 cfg->desc_size = sizeof(struct htt_msdu_ext_desc); 665 cfg->bank_base_addrs[0] = __cpu_to_le32(htt->frag_desc.paddr); 666 cfg->bank_id[0].bank_min_id = 0; 667 cfg->bank_id[0].bank_max_id = __cpu_to_le16(htt->max_num_pending_tx - 668 1); 669 670 cfg->q_state.paddr = cpu_to_le32(htt->tx_q_state.paddr); 671 cfg->q_state.num_peers = cpu_to_le16(htt->tx_q_state.num_peers); 672 cfg->q_state.num_tids = cpu_to_le16(htt->tx_q_state.num_tids); 673 cfg->q_state.record_size = HTT_TX_Q_STATE_ENTRY_SIZE; 674 cfg->q_state.record_multiplier = HTT_TX_Q_STATE_ENTRY_MULTIPLIER; 675 676 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt frag desc bank cmd\n"); 677 678 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb); 679 if (ret) { 680 ath10k_warn(ar, "failed to send frag desc bank cfg request: %d\n", 681 ret); 682 dev_kfree_skb_any(skb); 683 return ret; 684 } 685 686 return 0; 687 } 688 689 static int ath10k_htt_send_frag_desc_bank_cfg_64(struct ath10k_htt *htt) 690 { 691 struct ath10k *ar = htt->ar; 692 struct sk_buff *skb; 693 struct htt_cmd *cmd; 694 struct htt_frag_desc_bank_cfg64 *cfg; 695 int ret, size; 696 u8 info; 697 698 if (!ar->hw_params.continuous_frag_desc) 699 return 0; 700 701 if (!htt->frag_desc.paddr) { 702 ath10k_warn(ar, "invalid frag desc memory\n"); 703 return -EINVAL; 704 } 705 706 size = sizeof(cmd->hdr) + sizeof(cmd->frag_desc_bank_cfg64); 707 skb = ath10k_htc_alloc_skb(ar, size); 708 if (!skb) 709 return -ENOMEM; 710 711 skb_put(skb, size); 712 cmd = (struct htt_cmd *)skb->data; 713 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_FRAG_DESC_BANK_CFG; 714 715 info = 0; 716 info |= SM(htt->tx_q_state.type, 717 HTT_FRAG_DESC_BANK_CFG_INFO_Q_STATE_DEPTH_TYPE); 718 719 if (test_bit(ATH10K_FW_FEATURE_PEER_FLOW_CONTROL, 720 ar->running_fw->fw_file.fw_features)) 721 info |= HTT_FRAG_DESC_BANK_CFG_INFO_Q_STATE_VALID; 722 723 cfg = &cmd->frag_desc_bank_cfg64; 724 cfg->info = info; 725 cfg->num_banks = 1; 726 cfg->desc_size = sizeof(struct htt_msdu_ext_desc_64); 727 cfg->bank_base_addrs[0] = __cpu_to_le64(htt->frag_desc.paddr); 728 cfg->bank_id[0].bank_min_id = 0; 729 cfg->bank_id[0].bank_max_id = __cpu_to_le16(htt->max_num_pending_tx - 730 1); 731 732 cfg->q_state.paddr = cpu_to_le32(htt->tx_q_state.paddr); 733 cfg->q_state.num_peers = cpu_to_le16(htt->tx_q_state.num_peers); 734 cfg->q_state.num_tids = cpu_to_le16(htt->tx_q_state.num_tids); 735 cfg->q_state.record_size = HTT_TX_Q_STATE_ENTRY_SIZE; 736 cfg->q_state.record_multiplier = HTT_TX_Q_STATE_ENTRY_MULTIPLIER; 737 738 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt frag desc bank cmd\n"); 739 740 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb); 741 if (ret) { 742 ath10k_warn(ar, "failed to send frag desc bank cfg request: %d\n", 743 ret); 744 dev_kfree_skb_any(skb); 745 return ret; 746 } 747 748 return 0; 749 } 750 751 static void ath10k_htt_fill_rx_desc_offset_32(void *rx_ring) 752 { 753 struct htt_rx_ring_setup_ring32 *ring = 754 (struct htt_rx_ring_setup_ring32 *)rx_ring; 755 756 #define desc_offset(x) (offsetof(struct htt_rx_desc, x) / 4) 757 ring->mac80211_hdr_offset = __cpu_to_le16(desc_offset(rx_hdr_status)); 758 ring->msdu_payload_offset = __cpu_to_le16(desc_offset(msdu_payload)); 759 ring->ppdu_start_offset = __cpu_to_le16(desc_offset(ppdu_start)); 760 ring->ppdu_end_offset = __cpu_to_le16(desc_offset(ppdu_end)); 761 ring->mpdu_start_offset = __cpu_to_le16(desc_offset(mpdu_start)); 762 ring->mpdu_end_offset = __cpu_to_le16(desc_offset(mpdu_end)); 763 ring->msdu_start_offset = __cpu_to_le16(desc_offset(msdu_start)); 764 ring->msdu_end_offset = __cpu_to_le16(desc_offset(msdu_end)); 765 ring->rx_attention_offset = __cpu_to_le16(desc_offset(attention)); 766 ring->frag_info_offset = __cpu_to_le16(desc_offset(frag_info)); 767 #undef desc_offset 768 } 769 770 static void ath10k_htt_fill_rx_desc_offset_64(void *rx_ring) 771 { 772 struct htt_rx_ring_setup_ring64 *ring = 773 (struct htt_rx_ring_setup_ring64 *)rx_ring; 774 775 #define desc_offset(x) (offsetof(struct htt_rx_desc, x) / 4) 776 ring->mac80211_hdr_offset = __cpu_to_le16(desc_offset(rx_hdr_status)); 777 ring->msdu_payload_offset = __cpu_to_le16(desc_offset(msdu_payload)); 778 ring->ppdu_start_offset = __cpu_to_le16(desc_offset(ppdu_start)); 779 ring->ppdu_end_offset = __cpu_to_le16(desc_offset(ppdu_end)); 780 ring->mpdu_start_offset = __cpu_to_le16(desc_offset(mpdu_start)); 781 ring->mpdu_end_offset = __cpu_to_le16(desc_offset(mpdu_end)); 782 ring->msdu_start_offset = __cpu_to_le16(desc_offset(msdu_start)); 783 ring->msdu_end_offset = __cpu_to_le16(desc_offset(msdu_end)); 784 ring->rx_attention_offset = __cpu_to_le16(desc_offset(attention)); 785 ring->frag_info_offset = __cpu_to_le16(desc_offset(frag_info)); 786 #undef desc_offset 787 } 788 789 static int ath10k_htt_send_rx_ring_cfg_32(struct ath10k_htt *htt) 790 { 791 struct ath10k *ar = htt->ar; 792 struct sk_buff *skb; 793 struct htt_cmd *cmd; 794 struct htt_rx_ring_setup_ring32 *ring; 795 const int num_rx_ring = 1; 796 u16 flags; 797 u32 fw_idx; 798 int len; 799 int ret; 800 801 /* 802 * the HW expects the buffer to be an integral number of 4-byte 803 * "words" 804 */ 805 BUILD_BUG_ON(!IS_ALIGNED(HTT_RX_BUF_SIZE, 4)); 806 BUILD_BUG_ON((HTT_RX_BUF_SIZE & HTT_MAX_CACHE_LINE_SIZE_MASK) != 0); 807 808 len = sizeof(cmd->hdr) + sizeof(cmd->rx_setup_32.hdr) 809 + (sizeof(*ring) * num_rx_ring); 810 skb = ath10k_htc_alloc_skb(ar, len); 811 if (!skb) 812 return -ENOMEM; 813 814 skb_put(skb, len); 815 816 cmd = (struct htt_cmd *)skb->data; 817 ring = &cmd->rx_setup_32.rings[0]; 818 819 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_RX_RING_CFG; 820 cmd->rx_setup_32.hdr.num_rings = 1; 821 822 /* FIXME: do we need all of this? */ 823 flags = 0; 824 flags |= HTT_RX_RING_FLAGS_MAC80211_HDR; 825 flags |= HTT_RX_RING_FLAGS_MSDU_PAYLOAD; 826 flags |= HTT_RX_RING_FLAGS_PPDU_START; 827 flags |= HTT_RX_RING_FLAGS_PPDU_END; 828 flags |= HTT_RX_RING_FLAGS_MPDU_START; 829 flags |= HTT_RX_RING_FLAGS_MPDU_END; 830 flags |= HTT_RX_RING_FLAGS_MSDU_START; 831 flags |= HTT_RX_RING_FLAGS_MSDU_END; 832 flags |= HTT_RX_RING_FLAGS_RX_ATTENTION; 833 flags |= HTT_RX_RING_FLAGS_FRAG_INFO; 834 flags |= HTT_RX_RING_FLAGS_UNICAST_RX; 835 flags |= HTT_RX_RING_FLAGS_MULTICAST_RX; 836 flags |= HTT_RX_RING_FLAGS_CTRL_RX; 837 flags |= HTT_RX_RING_FLAGS_MGMT_RX; 838 flags |= HTT_RX_RING_FLAGS_NULL_RX; 839 flags |= HTT_RX_RING_FLAGS_PHY_DATA_RX; 840 841 fw_idx = __le32_to_cpu(*htt->rx_ring.alloc_idx.vaddr); 842 843 ring->fw_idx_shadow_reg_paddr = 844 __cpu_to_le32(htt->rx_ring.alloc_idx.paddr); 845 ring->rx_ring_base_paddr = __cpu_to_le32(htt->rx_ring.base_paddr); 846 ring->rx_ring_len = __cpu_to_le16(htt->rx_ring.size); 847 ring->rx_ring_bufsize = __cpu_to_le16(HTT_RX_BUF_SIZE); 848 ring->flags = __cpu_to_le16(flags); 849 ring->fw_idx_init_val = __cpu_to_le16(fw_idx); 850 851 ath10k_htt_fill_rx_desc_offset_32(ring); 852 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb); 853 if (ret) { 854 dev_kfree_skb_any(skb); 855 return ret; 856 } 857 858 return 0; 859 } 860 861 static int ath10k_htt_send_rx_ring_cfg_64(struct ath10k_htt *htt) 862 { 863 struct ath10k *ar = htt->ar; 864 struct sk_buff *skb; 865 struct htt_cmd *cmd; 866 struct htt_rx_ring_setup_ring64 *ring; 867 const int num_rx_ring = 1; 868 u16 flags; 869 u32 fw_idx; 870 int len; 871 int ret; 872 873 /* HW expects the buffer to be an integral number of 4-byte 874 * "words" 875 */ 876 BUILD_BUG_ON(!IS_ALIGNED(HTT_RX_BUF_SIZE, 4)); 877 BUILD_BUG_ON((HTT_RX_BUF_SIZE & HTT_MAX_CACHE_LINE_SIZE_MASK) != 0); 878 879 len = sizeof(cmd->hdr) + sizeof(cmd->rx_setup_64.hdr) 880 + (sizeof(*ring) * num_rx_ring); 881 skb = ath10k_htc_alloc_skb(ar, len); 882 if (!skb) 883 return -ENOMEM; 884 885 skb_put(skb, len); 886 887 cmd = (struct htt_cmd *)skb->data; 888 ring = &cmd->rx_setup_64.rings[0]; 889 890 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_RX_RING_CFG; 891 cmd->rx_setup_64.hdr.num_rings = 1; 892 893 flags = 0; 894 flags |= HTT_RX_RING_FLAGS_MAC80211_HDR; 895 flags |= HTT_RX_RING_FLAGS_MSDU_PAYLOAD; 896 flags |= HTT_RX_RING_FLAGS_PPDU_START; 897 flags |= HTT_RX_RING_FLAGS_PPDU_END; 898 flags |= HTT_RX_RING_FLAGS_MPDU_START; 899 flags |= HTT_RX_RING_FLAGS_MPDU_END; 900 flags |= HTT_RX_RING_FLAGS_MSDU_START; 901 flags |= HTT_RX_RING_FLAGS_MSDU_END; 902 flags |= HTT_RX_RING_FLAGS_RX_ATTENTION; 903 flags |= HTT_RX_RING_FLAGS_FRAG_INFO; 904 flags |= HTT_RX_RING_FLAGS_UNICAST_RX; 905 flags |= HTT_RX_RING_FLAGS_MULTICAST_RX; 906 flags |= HTT_RX_RING_FLAGS_CTRL_RX; 907 flags |= HTT_RX_RING_FLAGS_MGMT_RX; 908 flags |= HTT_RX_RING_FLAGS_NULL_RX; 909 flags |= HTT_RX_RING_FLAGS_PHY_DATA_RX; 910 911 fw_idx = __le32_to_cpu(*htt->rx_ring.alloc_idx.vaddr); 912 913 ring->fw_idx_shadow_reg_paddr = __cpu_to_le64(htt->rx_ring.alloc_idx.paddr); 914 ring->rx_ring_base_paddr = __cpu_to_le64(htt->rx_ring.base_paddr); 915 ring->rx_ring_len = __cpu_to_le16(htt->rx_ring.size); 916 ring->rx_ring_bufsize = __cpu_to_le16(HTT_RX_BUF_SIZE); 917 ring->flags = __cpu_to_le16(flags); 918 ring->fw_idx_init_val = __cpu_to_le16(fw_idx); 919 920 ath10k_htt_fill_rx_desc_offset_64(ring); 921 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb); 922 if (ret) { 923 dev_kfree_skb_any(skb); 924 return ret; 925 } 926 927 return 0; 928 } 929 930 static int ath10k_htt_send_rx_ring_cfg_hl(struct ath10k_htt *htt) 931 { 932 struct ath10k *ar = htt->ar; 933 struct sk_buff *skb; 934 struct htt_cmd *cmd; 935 struct htt_rx_ring_setup_ring32 *ring; 936 const int num_rx_ring = 1; 937 u16 flags; 938 int len; 939 int ret; 940 941 /* 942 * the HW expects the buffer to be an integral number of 4-byte 943 * "words" 944 */ 945 BUILD_BUG_ON(!IS_ALIGNED(HTT_RX_BUF_SIZE, 4)); 946 BUILD_BUG_ON((HTT_RX_BUF_SIZE & HTT_MAX_CACHE_LINE_SIZE_MASK) != 0); 947 948 len = sizeof(cmd->hdr) + sizeof(cmd->rx_setup_32.hdr) 949 + (sizeof(*ring) * num_rx_ring); 950 skb = ath10k_htc_alloc_skb(ar, len); 951 if (!skb) 952 return -ENOMEM; 953 954 skb_put(skb, len); 955 956 cmd = (struct htt_cmd *)skb->data; 957 ring = &cmd->rx_setup_32.rings[0]; 958 959 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_RX_RING_CFG; 960 cmd->rx_setup_32.hdr.num_rings = 1; 961 962 flags = 0; 963 flags |= HTT_RX_RING_FLAGS_MSDU_PAYLOAD; 964 flags |= HTT_RX_RING_FLAGS_UNICAST_RX; 965 flags |= HTT_RX_RING_FLAGS_MULTICAST_RX; 966 967 memset(ring, 0, sizeof(*ring)); 968 ring->rx_ring_len = __cpu_to_le16(HTT_RX_RING_SIZE_MIN); 969 ring->rx_ring_bufsize = __cpu_to_le16(HTT_RX_BUF_SIZE); 970 ring->flags = __cpu_to_le16(flags); 971 972 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb); 973 if (ret) { 974 dev_kfree_skb_any(skb); 975 return ret; 976 } 977 978 return 0; 979 } 980 981 static int ath10k_htt_h2t_aggr_cfg_msg_32(struct ath10k_htt *htt, 982 u8 max_subfrms_ampdu, 983 u8 max_subfrms_amsdu) 984 { 985 struct ath10k *ar = htt->ar; 986 struct htt_aggr_conf *aggr_conf; 987 struct sk_buff *skb; 988 struct htt_cmd *cmd; 989 int len; 990 int ret; 991 992 /* Firmware defaults are: amsdu = 3 and ampdu = 64 */ 993 994 if (max_subfrms_ampdu == 0 || max_subfrms_ampdu > 64) 995 return -EINVAL; 996 997 if (max_subfrms_amsdu == 0 || max_subfrms_amsdu > 31) 998 return -EINVAL; 999 1000 len = sizeof(cmd->hdr); 1001 len += sizeof(cmd->aggr_conf); 1002 1003 skb = ath10k_htc_alloc_skb(ar, len); 1004 if (!skb) 1005 return -ENOMEM; 1006 1007 skb_put(skb, len); 1008 cmd = (struct htt_cmd *)skb->data; 1009 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_AGGR_CFG; 1010 1011 aggr_conf = &cmd->aggr_conf; 1012 aggr_conf->max_num_ampdu_subframes = max_subfrms_ampdu; 1013 aggr_conf->max_num_amsdu_subframes = max_subfrms_amsdu; 1014 1015 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt h2t aggr cfg msg amsdu %d ampdu %d", 1016 aggr_conf->max_num_amsdu_subframes, 1017 aggr_conf->max_num_ampdu_subframes); 1018 1019 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb); 1020 if (ret) { 1021 dev_kfree_skb_any(skb); 1022 return ret; 1023 } 1024 1025 return 0; 1026 } 1027 1028 static int ath10k_htt_h2t_aggr_cfg_msg_v2(struct ath10k_htt *htt, 1029 u8 max_subfrms_ampdu, 1030 u8 max_subfrms_amsdu) 1031 { 1032 struct ath10k *ar = htt->ar; 1033 struct htt_aggr_conf_v2 *aggr_conf; 1034 struct sk_buff *skb; 1035 struct htt_cmd *cmd; 1036 int len; 1037 int ret; 1038 1039 /* Firmware defaults are: amsdu = 3 and ampdu = 64 */ 1040 1041 if (max_subfrms_ampdu == 0 || max_subfrms_ampdu > 64) 1042 return -EINVAL; 1043 1044 if (max_subfrms_amsdu == 0 || max_subfrms_amsdu > 31) 1045 return -EINVAL; 1046 1047 len = sizeof(cmd->hdr); 1048 len += sizeof(cmd->aggr_conf_v2); 1049 1050 skb = ath10k_htc_alloc_skb(ar, len); 1051 if (!skb) 1052 return -ENOMEM; 1053 1054 skb_put(skb, len); 1055 cmd = (struct htt_cmd *)skb->data; 1056 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_AGGR_CFG; 1057 1058 aggr_conf = &cmd->aggr_conf_v2; 1059 aggr_conf->max_num_ampdu_subframes = max_subfrms_ampdu; 1060 aggr_conf->max_num_amsdu_subframes = max_subfrms_amsdu; 1061 1062 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt h2t aggr cfg msg amsdu %d ampdu %d", 1063 aggr_conf->max_num_amsdu_subframes, 1064 aggr_conf->max_num_ampdu_subframes); 1065 1066 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb); 1067 if (ret) { 1068 dev_kfree_skb_any(skb); 1069 return ret; 1070 } 1071 1072 return 0; 1073 } 1074 1075 int ath10k_htt_tx_fetch_resp(struct ath10k *ar, 1076 __le32 token, 1077 __le16 fetch_seq_num, 1078 struct htt_tx_fetch_record *records, 1079 size_t num_records) 1080 { 1081 struct sk_buff *skb; 1082 struct htt_cmd *cmd; 1083 const u16 resp_id = 0; 1084 int len = 0; 1085 int ret; 1086 1087 /* Response IDs are echo-ed back only for host driver convienence 1088 * purposes. They aren't used for anything in the driver yet so use 0. 1089 */ 1090 1091 len += sizeof(cmd->hdr); 1092 len += sizeof(cmd->tx_fetch_resp); 1093 len += sizeof(cmd->tx_fetch_resp.records[0]) * num_records; 1094 1095 skb = ath10k_htc_alloc_skb(ar, len); 1096 if (!skb) 1097 return -ENOMEM; 1098 1099 skb_put(skb, len); 1100 cmd = (struct htt_cmd *)skb->data; 1101 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_TX_FETCH_RESP; 1102 cmd->tx_fetch_resp.resp_id = cpu_to_le16(resp_id); 1103 cmd->tx_fetch_resp.fetch_seq_num = fetch_seq_num; 1104 cmd->tx_fetch_resp.num_records = cpu_to_le16(num_records); 1105 cmd->tx_fetch_resp.token = token; 1106 1107 memcpy(cmd->tx_fetch_resp.records, records, 1108 sizeof(records[0]) * num_records); 1109 1110 ret = ath10k_htc_send(&ar->htc, ar->htt.eid, skb); 1111 if (ret) { 1112 ath10k_warn(ar, "failed to submit htc command: %d\n", ret); 1113 goto err_free_skb; 1114 } 1115 1116 return 0; 1117 1118 err_free_skb: 1119 dev_kfree_skb_any(skb); 1120 1121 return ret; 1122 } 1123 1124 static u8 ath10k_htt_tx_get_vdev_id(struct ath10k *ar, struct sk_buff *skb) 1125 { 1126 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 1127 struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb); 1128 struct ath10k_vif *arvif; 1129 1130 if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) { 1131 return ar->scan.vdev_id; 1132 } else if (cb->vif) { 1133 arvif = (void *)cb->vif->drv_priv; 1134 return arvif->vdev_id; 1135 } else if (ar->monitor_started) { 1136 return ar->monitor_vdev_id; 1137 } else { 1138 return 0; 1139 } 1140 } 1141 1142 static u8 ath10k_htt_tx_get_tid(struct sk_buff *skb, bool is_eth) 1143 { 1144 struct ieee80211_hdr *hdr = (void *)skb->data; 1145 struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb); 1146 1147 if (!is_eth && ieee80211_is_mgmt(hdr->frame_control)) 1148 return HTT_DATA_TX_EXT_TID_MGMT; 1149 else if (cb->flags & ATH10K_SKB_F_QOS) 1150 return skb->priority & IEEE80211_QOS_CTL_TID_MASK; 1151 else 1152 return HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST; 1153 } 1154 1155 int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) 1156 { 1157 struct ath10k *ar = htt->ar; 1158 struct device *dev = ar->dev; 1159 struct sk_buff *txdesc = NULL; 1160 struct htt_cmd *cmd; 1161 struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(msdu); 1162 u8 vdev_id = ath10k_htt_tx_get_vdev_id(ar, msdu); 1163 int len = 0; 1164 int msdu_id = -1; 1165 int res; 1166 const u8 *peer_addr; 1167 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data; 1168 1169 len += sizeof(cmd->hdr); 1170 len += sizeof(cmd->mgmt_tx); 1171 1172 res = ath10k_htt_tx_alloc_msdu_id(htt, msdu); 1173 if (res < 0) 1174 goto err; 1175 1176 msdu_id = res; 1177 1178 if ((ieee80211_is_action(hdr->frame_control) || 1179 ieee80211_is_deauth(hdr->frame_control) || 1180 ieee80211_is_disassoc(hdr->frame_control)) && 1181 ieee80211_has_protected(hdr->frame_control)) { 1182 peer_addr = hdr->addr1; 1183 if (is_multicast_ether_addr(peer_addr)) { 1184 skb_put(msdu, sizeof(struct ieee80211_mmie_16)); 1185 } else { 1186 if (skb_cb->ucast_cipher == WLAN_CIPHER_SUITE_GCMP || 1187 skb_cb->ucast_cipher == WLAN_CIPHER_SUITE_GCMP_256) 1188 skb_put(msdu, IEEE80211_GCMP_MIC_LEN); 1189 else 1190 skb_put(msdu, IEEE80211_CCMP_MIC_LEN); 1191 } 1192 } 1193 1194 txdesc = ath10k_htc_alloc_skb(ar, len); 1195 if (!txdesc) { 1196 res = -ENOMEM; 1197 goto err_free_msdu_id; 1198 } 1199 1200 skb_cb->paddr = dma_map_single(dev, msdu->data, msdu->len, 1201 DMA_TO_DEVICE); 1202 res = dma_mapping_error(dev, skb_cb->paddr); 1203 if (res) { 1204 res = -EIO; 1205 goto err_free_txdesc; 1206 } 1207 1208 skb_put(txdesc, len); 1209 cmd = (struct htt_cmd *)txdesc->data; 1210 memset(cmd, 0, len); 1211 1212 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_MGMT_TX; 1213 cmd->mgmt_tx.msdu_paddr = __cpu_to_le32(ATH10K_SKB_CB(msdu)->paddr); 1214 cmd->mgmt_tx.len = __cpu_to_le32(msdu->len); 1215 cmd->mgmt_tx.desc_id = __cpu_to_le32(msdu_id); 1216 cmd->mgmt_tx.vdev_id = __cpu_to_le32(vdev_id); 1217 memcpy(cmd->mgmt_tx.hdr, msdu->data, 1218 min_t(int, msdu->len, HTT_MGMT_FRM_HDR_DOWNLOAD_LEN)); 1219 1220 res = ath10k_htc_send(&htt->ar->htc, htt->eid, txdesc); 1221 if (res) 1222 goto err_unmap_msdu; 1223 1224 return 0; 1225 1226 err_unmap_msdu: 1227 if (ar->bus_param.dev_type != ATH10K_DEV_TYPE_HL) 1228 dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE); 1229 err_free_txdesc: 1230 dev_kfree_skb_any(txdesc); 1231 err_free_msdu_id: 1232 spin_lock_bh(&htt->tx_lock); 1233 ath10k_htt_tx_free_msdu_id(htt, msdu_id); 1234 spin_unlock_bh(&htt->tx_lock); 1235 err: 1236 return res; 1237 } 1238 1239 #define HTT_TX_HL_NEEDED_HEADROOM \ 1240 (unsigned int)(sizeof(struct htt_cmd_hdr) + \ 1241 sizeof(struct htt_data_tx_desc) + \ 1242 sizeof(struct ath10k_htc_hdr)) 1243 1244 static int ath10k_htt_tx_hl(struct ath10k_htt *htt, enum ath10k_hw_txrx_mode txmode, 1245 struct sk_buff *msdu) 1246 { 1247 struct ath10k *ar = htt->ar; 1248 int res, data_len; 1249 struct htt_cmd_hdr *cmd_hdr; 1250 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data; 1251 struct htt_data_tx_desc *tx_desc; 1252 struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(msdu); 1253 struct sk_buff *tmp_skb; 1254 bool is_eth = (txmode == ATH10K_HW_TXRX_ETHERNET); 1255 u8 vdev_id = ath10k_htt_tx_get_vdev_id(ar, msdu); 1256 u8 tid = ath10k_htt_tx_get_tid(msdu, is_eth); 1257 u8 flags0 = 0; 1258 u16 flags1 = 0; 1259 u16 msdu_id = 0; 1260 1261 if ((ieee80211_is_action(hdr->frame_control) || 1262 ieee80211_is_deauth(hdr->frame_control) || 1263 ieee80211_is_disassoc(hdr->frame_control)) && 1264 ieee80211_has_protected(hdr->frame_control)) { 1265 skb_put(msdu, IEEE80211_CCMP_MIC_LEN); 1266 } 1267 1268 data_len = msdu->len; 1269 1270 switch (txmode) { 1271 case ATH10K_HW_TXRX_RAW: 1272 case ATH10K_HW_TXRX_NATIVE_WIFI: 1273 flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT; 1274 /* fall through */ 1275 case ATH10K_HW_TXRX_ETHERNET: 1276 flags0 |= SM(txmode, HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE); 1277 break; 1278 case ATH10K_HW_TXRX_MGMT: 1279 flags0 |= SM(ATH10K_HW_TXRX_MGMT, 1280 HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE); 1281 flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT; 1282 break; 1283 } 1284 1285 if (skb_cb->flags & ATH10K_SKB_F_NO_HWCRYPT) 1286 flags0 |= HTT_DATA_TX_DESC_FLAGS0_NO_ENCRYPT; 1287 1288 flags1 |= SM((u16)vdev_id, HTT_DATA_TX_DESC_FLAGS1_VDEV_ID); 1289 flags1 |= SM((u16)tid, HTT_DATA_TX_DESC_FLAGS1_EXT_TID); 1290 if (msdu->ip_summed == CHECKSUM_PARTIAL && 1291 !test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) { 1292 flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD; 1293 flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD; 1294 } 1295 1296 /* Prepend the HTT header and TX desc struct to the data message 1297 * and realloc the skb if it does not have enough headroom. 1298 */ 1299 if (skb_headroom(msdu) < HTT_TX_HL_NEEDED_HEADROOM) { 1300 tmp_skb = msdu; 1301 1302 ath10k_dbg(htt->ar, ATH10K_DBG_HTT, 1303 "Not enough headroom in skb. Current headroom: %u, needed: %u. Reallocating...\n", 1304 skb_headroom(msdu), HTT_TX_HL_NEEDED_HEADROOM); 1305 msdu = skb_realloc_headroom(msdu, HTT_TX_HL_NEEDED_HEADROOM); 1306 kfree_skb(tmp_skb); 1307 if (!msdu) { 1308 ath10k_warn(htt->ar, "htt hl tx: Unable to realloc skb!\n"); 1309 res = -ENOMEM; 1310 goto out; 1311 } 1312 } 1313 1314 if (ar->bus_param.hl_msdu_ids) { 1315 flags1 |= HTT_DATA_TX_DESC_FLAGS1_POSTPONED; 1316 res = ath10k_htt_tx_alloc_msdu_id(htt, msdu); 1317 if (res < 0) { 1318 ath10k_err(ar, "msdu_id allocation failed %d\n", res); 1319 goto out; 1320 } 1321 msdu_id = res; 1322 } 1323 1324 /* As msdu is freed by mac80211 (in ieee80211_tx_status()) and by 1325 * ath10k (in ath10k_htt_htc_tx_complete()) we have to increase 1326 * reference by one to avoid a use-after-free case and a double 1327 * free. 1328 */ 1329 skb_get(msdu); 1330 1331 skb_push(msdu, sizeof(*cmd_hdr)); 1332 skb_push(msdu, sizeof(*tx_desc)); 1333 cmd_hdr = (struct htt_cmd_hdr *)msdu->data; 1334 tx_desc = (struct htt_data_tx_desc *)(msdu->data + sizeof(*cmd_hdr)); 1335 1336 cmd_hdr->msg_type = HTT_H2T_MSG_TYPE_TX_FRM; 1337 tx_desc->flags0 = flags0; 1338 tx_desc->flags1 = __cpu_to_le16(flags1); 1339 tx_desc->len = __cpu_to_le16(data_len); 1340 tx_desc->id = __cpu_to_le16(msdu_id); 1341 tx_desc->frags_paddr = 0; /* always zero */ 1342 /* Initialize peer_id to INVALID_PEER because this is NOT 1343 * Reinjection path 1344 */ 1345 tx_desc->peerid = __cpu_to_le32(HTT_INVALID_PEERID); 1346 1347 res = ath10k_htc_send(&htt->ar->htc, htt->eid, msdu); 1348 1349 out: 1350 return res; 1351 } 1352 1353 static int ath10k_htt_tx_32(struct ath10k_htt *htt, 1354 enum ath10k_hw_txrx_mode txmode, 1355 struct sk_buff *msdu) 1356 { 1357 struct ath10k *ar = htt->ar; 1358 struct device *dev = ar->dev; 1359 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data; 1360 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(msdu); 1361 struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(msdu); 1362 struct ath10k_hif_sg_item sg_items[2]; 1363 struct ath10k_htt_txbuf_32 *txbuf; 1364 struct htt_data_tx_desc_frag *frags; 1365 bool is_eth = (txmode == ATH10K_HW_TXRX_ETHERNET); 1366 u8 vdev_id = ath10k_htt_tx_get_vdev_id(ar, msdu); 1367 u8 tid = ath10k_htt_tx_get_tid(msdu, is_eth); 1368 int prefetch_len; 1369 int res; 1370 u8 flags0 = 0; 1371 u16 msdu_id, flags1 = 0; 1372 u16 freq = 0; 1373 u32 frags_paddr = 0; 1374 u32 txbuf_paddr; 1375 struct htt_msdu_ext_desc *ext_desc = NULL; 1376 struct htt_msdu_ext_desc *ext_desc_t = NULL; 1377 1378 res = ath10k_htt_tx_alloc_msdu_id(htt, msdu); 1379 if (res < 0) 1380 goto err; 1381 1382 msdu_id = res; 1383 1384 prefetch_len = min(htt->prefetch_len, msdu->len); 1385 prefetch_len = roundup(prefetch_len, 4); 1386 1387 txbuf = htt->txbuf.vaddr_txbuff_32 + msdu_id; 1388 txbuf_paddr = htt->txbuf.paddr + 1389 (sizeof(struct ath10k_htt_txbuf_32) * msdu_id); 1390 1391 if ((ieee80211_is_action(hdr->frame_control) || 1392 ieee80211_is_deauth(hdr->frame_control) || 1393 ieee80211_is_disassoc(hdr->frame_control)) && 1394 ieee80211_has_protected(hdr->frame_control)) { 1395 skb_put(msdu, IEEE80211_CCMP_MIC_LEN); 1396 } else if (!(skb_cb->flags & ATH10K_SKB_F_NO_HWCRYPT) && 1397 txmode == ATH10K_HW_TXRX_RAW && 1398 ieee80211_has_protected(hdr->frame_control)) { 1399 skb_put(msdu, IEEE80211_CCMP_MIC_LEN); 1400 } 1401 1402 skb_cb->paddr = dma_map_single(dev, msdu->data, msdu->len, 1403 DMA_TO_DEVICE); 1404 res = dma_mapping_error(dev, skb_cb->paddr); 1405 if (res) { 1406 res = -EIO; 1407 goto err_free_msdu_id; 1408 } 1409 1410 if (unlikely(info->flags & IEEE80211_TX_CTL_TX_OFFCHAN)) 1411 freq = ar->scan.roc_freq; 1412 1413 switch (txmode) { 1414 case ATH10K_HW_TXRX_RAW: 1415 case ATH10K_HW_TXRX_NATIVE_WIFI: 1416 flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT; 1417 /* fall through */ 1418 case ATH10K_HW_TXRX_ETHERNET: 1419 if (ar->hw_params.continuous_frag_desc) { 1420 ext_desc_t = htt->frag_desc.vaddr_desc_32; 1421 memset(&ext_desc_t[msdu_id], 0, 1422 sizeof(struct htt_msdu_ext_desc)); 1423 frags = (struct htt_data_tx_desc_frag *) 1424 &ext_desc_t[msdu_id].frags; 1425 ext_desc = &ext_desc_t[msdu_id]; 1426 frags[0].tword_addr.paddr_lo = 1427 __cpu_to_le32(skb_cb->paddr); 1428 frags[0].tword_addr.paddr_hi = 0; 1429 frags[0].tword_addr.len_16 = __cpu_to_le16(msdu->len); 1430 1431 frags_paddr = htt->frag_desc.paddr + 1432 (sizeof(struct htt_msdu_ext_desc) * msdu_id); 1433 } else { 1434 frags = txbuf->frags; 1435 frags[0].dword_addr.paddr = 1436 __cpu_to_le32(skb_cb->paddr); 1437 frags[0].dword_addr.len = __cpu_to_le32(msdu->len); 1438 frags[1].dword_addr.paddr = 0; 1439 frags[1].dword_addr.len = 0; 1440 1441 frags_paddr = txbuf_paddr; 1442 } 1443 flags0 |= SM(txmode, HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE); 1444 break; 1445 case ATH10K_HW_TXRX_MGMT: 1446 flags0 |= SM(ATH10K_HW_TXRX_MGMT, 1447 HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE); 1448 flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT; 1449 1450 frags_paddr = skb_cb->paddr; 1451 break; 1452 } 1453 1454 /* Normally all commands go through HTC which manages tx credits for 1455 * each endpoint and notifies when tx is completed. 1456 * 1457 * HTT endpoint is creditless so there's no need to care about HTC 1458 * flags. In that case it is trivial to fill the HTC header here. 1459 * 1460 * MSDU transmission is considered completed upon HTT event. This 1461 * implies no relevant resources can be freed until after the event is 1462 * received. That's why HTC tx completion handler itself is ignored by 1463 * setting NULL to transfer_context for all sg items. 1464 * 1465 * There is simply no point in pushing HTT TX_FRM through HTC tx path 1466 * as it's a waste of resources. By bypassing HTC it is possible to 1467 * avoid extra memory allocations, compress data structures and thus 1468 * improve performance. 1469 */ 1470 1471 txbuf->htc_hdr.eid = htt->eid; 1472 txbuf->htc_hdr.len = __cpu_to_le16(sizeof(txbuf->cmd_hdr) + 1473 sizeof(txbuf->cmd_tx) + 1474 prefetch_len); 1475 txbuf->htc_hdr.flags = 0; 1476 1477 if (skb_cb->flags & ATH10K_SKB_F_NO_HWCRYPT) 1478 flags0 |= HTT_DATA_TX_DESC_FLAGS0_NO_ENCRYPT; 1479 1480 flags1 |= SM((u16)vdev_id, HTT_DATA_TX_DESC_FLAGS1_VDEV_ID); 1481 flags1 |= SM((u16)tid, HTT_DATA_TX_DESC_FLAGS1_EXT_TID); 1482 if (msdu->ip_summed == CHECKSUM_PARTIAL && 1483 !test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) { 1484 flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD; 1485 flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD; 1486 if (ar->hw_params.continuous_frag_desc) 1487 ext_desc->flags |= HTT_MSDU_CHECKSUM_ENABLE; 1488 } 1489 1490 /* Prevent firmware from sending up tx inspection requests. There's 1491 * nothing ath10k can do with frames requested for inspection so force 1492 * it to simply rely a regular tx completion with discard status. 1493 */ 1494 flags1 |= HTT_DATA_TX_DESC_FLAGS1_POSTPONED; 1495 1496 txbuf->cmd_hdr.msg_type = HTT_H2T_MSG_TYPE_TX_FRM; 1497 txbuf->cmd_tx.flags0 = flags0; 1498 txbuf->cmd_tx.flags1 = __cpu_to_le16(flags1); 1499 txbuf->cmd_tx.len = __cpu_to_le16(msdu->len); 1500 txbuf->cmd_tx.id = __cpu_to_le16(msdu_id); 1501 txbuf->cmd_tx.frags_paddr = __cpu_to_le32(frags_paddr); 1502 if (ath10k_mac_tx_frm_has_freq(ar)) { 1503 txbuf->cmd_tx.offchan_tx.peerid = 1504 __cpu_to_le16(HTT_INVALID_PEERID); 1505 txbuf->cmd_tx.offchan_tx.freq = 1506 __cpu_to_le16(freq); 1507 } else { 1508 txbuf->cmd_tx.peerid = 1509 __cpu_to_le32(HTT_INVALID_PEERID); 1510 } 1511 1512 trace_ath10k_htt_tx(ar, msdu_id, msdu->len, vdev_id, tid); 1513 ath10k_dbg(ar, ATH10K_DBG_HTT, 1514 "htt tx flags0 %hhu flags1 %hu len %d id %hu frags_paddr %pad, msdu_paddr %pad vdev %hhu tid %hhu freq %hu\n", 1515 flags0, flags1, msdu->len, msdu_id, &frags_paddr, 1516 &skb_cb->paddr, vdev_id, tid, freq); 1517 ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt tx msdu: ", 1518 msdu->data, msdu->len); 1519 trace_ath10k_tx_hdr(ar, msdu->data, msdu->len); 1520 trace_ath10k_tx_payload(ar, msdu->data, msdu->len); 1521 1522 sg_items[0].transfer_id = 0; 1523 sg_items[0].transfer_context = NULL; 1524 sg_items[0].vaddr = &txbuf->htc_hdr; 1525 sg_items[0].paddr = txbuf_paddr + 1526 sizeof(txbuf->frags); 1527 sg_items[0].len = sizeof(txbuf->htc_hdr) + 1528 sizeof(txbuf->cmd_hdr) + 1529 sizeof(txbuf->cmd_tx); 1530 1531 sg_items[1].transfer_id = 0; 1532 sg_items[1].transfer_context = NULL; 1533 sg_items[1].vaddr = msdu->data; 1534 sg_items[1].paddr = skb_cb->paddr; 1535 sg_items[1].len = prefetch_len; 1536 1537 res = ath10k_hif_tx_sg(htt->ar, 1538 htt->ar->htc.endpoint[htt->eid].ul_pipe_id, 1539 sg_items, ARRAY_SIZE(sg_items)); 1540 if (res) 1541 goto err_unmap_msdu; 1542 1543 return 0; 1544 1545 err_unmap_msdu: 1546 dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE); 1547 err_free_msdu_id: 1548 ath10k_htt_tx_free_msdu_id(htt, msdu_id); 1549 err: 1550 return res; 1551 } 1552 1553 static int ath10k_htt_tx_64(struct ath10k_htt *htt, 1554 enum ath10k_hw_txrx_mode txmode, 1555 struct sk_buff *msdu) 1556 { 1557 struct ath10k *ar = htt->ar; 1558 struct device *dev = ar->dev; 1559 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data; 1560 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(msdu); 1561 struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(msdu); 1562 struct ath10k_hif_sg_item sg_items[2]; 1563 struct ath10k_htt_txbuf_64 *txbuf; 1564 struct htt_data_tx_desc_frag *frags; 1565 bool is_eth = (txmode == ATH10K_HW_TXRX_ETHERNET); 1566 u8 vdev_id = ath10k_htt_tx_get_vdev_id(ar, msdu); 1567 u8 tid = ath10k_htt_tx_get_tid(msdu, is_eth); 1568 int prefetch_len; 1569 int res; 1570 u8 flags0 = 0; 1571 u16 msdu_id, flags1 = 0; 1572 u16 freq = 0; 1573 dma_addr_t frags_paddr = 0; 1574 dma_addr_t txbuf_paddr; 1575 struct htt_msdu_ext_desc_64 *ext_desc = NULL; 1576 struct htt_msdu_ext_desc_64 *ext_desc_t = NULL; 1577 1578 res = ath10k_htt_tx_alloc_msdu_id(htt, msdu); 1579 if (res < 0) 1580 goto err; 1581 1582 msdu_id = res; 1583 1584 prefetch_len = min(htt->prefetch_len, msdu->len); 1585 prefetch_len = roundup(prefetch_len, 4); 1586 1587 txbuf = htt->txbuf.vaddr_txbuff_64 + msdu_id; 1588 txbuf_paddr = htt->txbuf.paddr + 1589 (sizeof(struct ath10k_htt_txbuf_64) * msdu_id); 1590 1591 if ((ieee80211_is_action(hdr->frame_control) || 1592 ieee80211_is_deauth(hdr->frame_control) || 1593 ieee80211_is_disassoc(hdr->frame_control)) && 1594 ieee80211_has_protected(hdr->frame_control)) { 1595 skb_put(msdu, IEEE80211_CCMP_MIC_LEN); 1596 } else if (!(skb_cb->flags & ATH10K_SKB_F_NO_HWCRYPT) && 1597 txmode == ATH10K_HW_TXRX_RAW && 1598 ieee80211_has_protected(hdr->frame_control)) { 1599 skb_put(msdu, IEEE80211_CCMP_MIC_LEN); 1600 } 1601 1602 skb_cb->paddr = dma_map_single(dev, msdu->data, msdu->len, 1603 DMA_TO_DEVICE); 1604 res = dma_mapping_error(dev, skb_cb->paddr); 1605 if (res) { 1606 res = -EIO; 1607 goto err_free_msdu_id; 1608 } 1609 1610 if (unlikely(info->flags & IEEE80211_TX_CTL_TX_OFFCHAN)) 1611 freq = ar->scan.roc_freq; 1612 1613 switch (txmode) { 1614 case ATH10K_HW_TXRX_RAW: 1615 case ATH10K_HW_TXRX_NATIVE_WIFI: 1616 flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT; 1617 /* fall through */ 1618 case ATH10K_HW_TXRX_ETHERNET: 1619 if (ar->hw_params.continuous_frag_desc) { 1620 ext_desc_t = htt->frag_desc.vaddr_desc_64; 1621 memset(&ext_desc_t[msdu_id], 0, 1622 sizeof(struct htt_msdu_ext_desc_64)); 1623 frags = (struct htt_data_tx_desc_frag *) 1624 &ext_desc_t[msdu_id].frags; 1625 ext_desc = &ext_desc_t[msdu_id]; 1626 frags[0].tword_addr.paddr_lo = 1627 __cpu_to_le32(skb_cb->paddr); 1628 frags[0].tword_addr.paddr_hi = 1629 __cpu_to_le16(upper_32_bits(skb_cb->paddr)); 1630 frags[0].tword_addr.len_16 = __cpu_to_le16(msdu->len); 1631 1632 frags_paddr = htt->frag_desc.paddr + 1633 (sizeof(struct htt_msdu_ext_desc_64) * msdu_id); 1634 } else { 1635 frags = txbuf->frags; 1636 frags[0].tword_addr.paddr_lo = 1637 __cpu_to_le32(skb_cb->paddr); 1638 frags[0].tword_addr.paddr_hi = 1639 __cpu_to_le16(upper_32_bits(skb_cb->paddr)); 1640 frags[0].tword_addr.len_16 = __cpu_to_le16(msdu->len); 1641 frags[1].tword_addr.paddr_lo = 0; 1642 frags[1].tword_addr.paddr_hi = 0; 1643 frags[1].tword_addr.len_16 = 0; 1644 } 1645 flags0 |= SM(txmode, HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE); 1646 break; 1647 case ATH10K_HW_TXRX_MGMT: 1648 flags0 |= SM(ATH10K_HW_TXRX_MGMT, 1649 HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE); 1650 flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT; 1651 1652 frags_paddr = skb_cb->paddr; 1653 break; 1654 } 1655 1656 /* Normally all commands go through HTC which manages tx credits for 1657 * each endpoint and notifies when tx is completed. 1658 * 1659 * HTT endpoint is creditless so there's no need to care about HTC 1660 * flags. In that case it is trivial to fill the HTC header here. 1661 * 1662 * MSDU transmission is considered completed upon HTT event. This 1663 * implies no relevant resources can be freed until after the event is 1664 * received. That's why HTC tx completion handler itself is ignored by 1665 * setting NULL to transfer_context for all sg items. 1666 * 1667 * There is simply no point in pushing HTT TX_FRM through HTC tx path 1668 * as it's a waste of resources. By bypassing HTC it is possible to 1669 * avoid extra memory allocations, compress data structures and thus 1670 * improve performance. 1671 */ 1672 1673 txbuf->htc_hdr.eid = htt->eid; 1674 txbuf->htc_hdr.len = __cpu_to_le16(sizeof(txbuf->cmd_hdr) + 1675 sizeof(txbuf->cmd_tx) + 1676 prefetch_len); 1677 txbuf->htc_hdr.flags = 0; 1678 1679 if (skb_cb->flags & ATH10K_SKB_F_NO_HWCRYPT) 1680 flags0 |= HTT_DATA_TX_DESC_FLAGS0_NO_ENCRYPT; 1681 1682 flags1 |= SM((u16)vdev_id, HTT_DATA_TX_DESC_FLAGS1_VDEV_ID); 1683 flags1 |= SM((u16)tid, HTT_DATA_TX_DESC_FLAGS1_EXT_TID); 1684 if (msdu->ip_summed == CHECKSUM_PARTIAL && 1685 !test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) { 1686 flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD; 1687 flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD; 1688 if (ar->hw_params.continuous_frag_desc) { 1689 memset(ext_desc->tso_flag, 0, sizeof(ext_desc->tso_flag)); 1690 ext_desc->tso_flag[3] |= 1691 __cpu_to_le32(HTT_MSDU_CHECKSUM_ENABLE_64); 1692 } 1693 } 1694 1695 /* Prevent firmware from sending up tx inspection requests. There's 1696 * nothing ath10k can do with frames requested for inspection so force 1697 * it to simply rely a regular tx completion with discard status. 1698 */ 1699 flags1 |= HTT_DATA_TX_DESC_FLAGS1_POSTPONED; 1700 1701 txbuf->cmd_hdr.msg_type = HTT_H2T_MSG_TYPE_TX_FRM; 1702 txbuf->cmd_tx.flags0 = flags0; 1703 txbuf->cmd_tx.flags1 = __cpu_to_le16(flags1); 1704 txbuf->cmd_tx.len = __cpu_to_le16(msdu->len); 1705 txbuf->cmd_tx.id = __cpu_to_le16(msdu_id); 1706 1707 /* fill fragment descriptor */ 1708 txbuf->cmd_tx.frags_paddr = __cpu_to_le64(frags_paddr); 1709 if (ath10k_mac_tx_frm_has_freq(ar)) { 1710 txbuf->cmd_tx.offchan_tx.peerid = 1711 __cpu_to_le16(HTT_INVALID_PEERID); 1712 txbuf->cmd_tx.offchan_tx.freq = 1713 __cpu_to_le16(freq); 1714 } else { 1715 txbuf->cmd_tx.peerid = 1716 __cpu_to_le32(HTT_INVALID_PEERID); 1717 } 1718 1719 trace_ath10k_htt_tx(ar, msdu_id, msdu->len, vdev_id, tid); 1720 ath10k_dbg(ar, ATH10K_DBG_HTT, 1721 "htt tx flags0 %hhu flags1 %hu len %d id %hu frags_paddr %pad, msdu_paddr %pad vdev %hhu tid %hhu freq %hu\n", 1722 flags0, flags1, msdu->len, msdu_id, &frags_paddr, 1723 &skb_cb->paddr, vdev_id, tid, freq); 1724 ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt tx msdu: ", 1725 msdu->data, msdu->len); 1726 trace_ath10k_tx_hdr(ar, msdu->data, msdu->len); 1727 trace_ath10k_tx_payload(ar, msdu->data, msdu->len); 1728 1729 sg_items[0].transfer_id = 0; 1730 sg_items[0].transfer_context = NULL; 1731 sg_items[0].vaddr = &txbuf->htc_hdr; 1732 sg_items[0].paddr = txbuf_paddr + 1733 sizeof(txbuf->frags); 1734 sg_items[0].len = sizeof(txbuf->htc_hdr) + 1735 sizeof(txbuf->cmd_hdr) + 1736 sizeof(txbuf->cmd_tx); 1737 1738 sg_items[1].transfer_id = 0; 1739 sg_items[1].transfer_context = NULL; 1740 sg_items[1].vaddr = msdu->data; 1741 sg_items[1].paddr = skb_cb->paddr; 1742 sg_items[1].len = prefetch_len; 1743 1744 res = ath10k_hif_tx_sg(htt->ar, 1745 htt->ar->htc.endpoint[htt->eid].ul_pipe_id, 1746 sg_items, ARRAY_SIZE(sg_items)); 1747 if (res) 1748 goto err_unmap_msdu; 1749 1750 return 0; 1751 1752 err_unmap_msdu: 1753 dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE); 1754 err_free_msdu_id: 1755 ath10k_htt_tx_free_msdu_id(htt, msdu_id); 1756 err: 1757 return res; 1758 } 1759 1760 static const struct ath10k_htt_tx_ops htt_tx_ops_32 = { 1761 .htt_send_rx_ring_cfg = ath10k_htt_send_rx_ring_cfg_32, 1762 .htt_send_frag_desc_bank_cfg = ath10k_htt_send_frag_desc_bank_cfg_32, 1763 .htt_alloc_frag_desc = ath10k_htt_tx_alloc_cont_frag_desc_32, 1764 .htt_free_frag_desc = ath10k_htt_tx_free_cont_frag_desc_32, 1765 .htt_tx = ath10k_htt_tx_32, 1766 .htt_alloc_txbuff = ath10k_htt_tx_alloc_cont_txbuf_32, 1767 .htt_free_txbuff = ath10k_htt_tx_free_cont_txbuf_32, 1768 .htt_h2t_aggr_cfg_msg = ath10k_htt_h2t_aggr_cfg_msg_32, 1769 }; 1770 1771 static const struct ath10k_htt_tx_ops htt_tx_ops_64 = { 1772 .htt_send_rx_ring_cfg = ath10k_htt_send_rx_ring_cfg_64, 1773 .htt_send_frag_desc_bank_cfg = ath10k_htt_send_frag_desc_bank_cfg_64, 1774 .htt_alloc_frag_desc = ath10k_htt_tx_alloc_cont_frag_desc_64, 1775 .htt_free_frag_desc = ath10k_htt_tx_free_cont_frag_desc_64, 1776 .htt_tx = ath10k_htt_tx_64, 1777 .htt_alloc_txbuff = ath10k_htt_tx_alloc_cont_txbuf_64, 1778 .htt_free_txbuff = ath10k_htt_tx_free_cont_txbuf_64, 1779 .htt_h2t_aggr_cfg_msg = ath10k_htt_h2t_aggr_cfg_msg_v2, 1780 }; 1781 1782 static const struct ath10k_htt_tx_ops htt_tx_ops_hl = { 1783 .htt_send_rx_ring_cfg = ath10k_htt_send_rx_ring_cfg_hl, 1784 .htt_send_frag_desc_bank_cfg = ath10k_htt_send_frag_desc_bank_cfg_32, 1785 .htt_tx = ath10k_htt_tx_hl, 1786 .htt_h2t_aggr_cfg_msg = ath10k_htt_h2t_aggr_cfg_msg_32, 1787 }; 1788 1789 void ath10k_htt_set_tx_ops(struct ath10k_htt *htt) 1790 { 1791 struct ath10k *ar = htt->ar; 1792 1793 if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL) 1794 htt->tx_ops = &htt_tx_ops_hl; 1795 else if (ar->hw_params.target_64bit) 1796 htt->tx_ops = &htt_tx_ops_64; 1797 else 1798 htt->tx_ops = &htt_tx_ops_32; 1799 } 1800