1 // SPDX-License-Identifier: ISC
3 * Copyright (c) 2005-2011 Atheros Communications Inc.
4 * Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
7 #include <linux/etherdevice.h>
14 static u8 ath10k_htt_tx_txq_calc_size(size_t count)
22 while (factor >= 64 && exp < 4) {
31 factor = max(1, factor);
33 return SM(exp, HTT_TX_Q_STATE_ENTRY_EXP) |
34 SM(factor, HTT_TX_Q_STATE_ENTRY_FACTOR);
37 static void __ath10k_htt_tx_txq_recalc(struct ieee80211_hw *hw,
38 struct ieee80211_txq *txq)
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;
51 lockdep_assert_held(&ar->htt.tx_lock);
53 if (!ar->htt.tx_q_state.enabled)
56 if (ar->htt.tx_q_state.mode != HTT_TX_MODE_SWITCH_PUSH_PULL)
60 arsta = (void *)txq->sta->drv_priv;
61 peer_id = arsta->peer_id;
63 peer_id = arvif->peer_id;
67 bit = BIT(peer_id % 32);
70 ieee80211_txq_get_depth(txq, &frame_cnt, &byte_cnt);
71 count = ath10k_htt_tx_txq_calc_size(byte_cnt);
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 %u tid %u due to out of bounds\n",
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;
84 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx txq state update peer_id %u tid %u count %u\n",
88 static void __ath10k_htt_tx_txq_sync(struct ath10k *ar)
93 lockdep_assert_held(&ar->htt.tx_lock);
95 if (!ar->htt.tx_q_state.enabled)
98 if (ar->htt.tx_q_state.mode != HTT_TX_MODE_SWITCH_PUSH_PULL)
101 seq = le32_to_cpu(ar->htt.tx_q_state.vaddr->seq);
103 ar->htt.tx_q_state.vaddr->seq = cpu_to_le32(seq);
105 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx txq state update commit seq %u\n",
108 size = sizeof(*ar->htt.tx_q_state.vaddr);
109 dma_sync_single_for_device(ar->dev,
110 ar->htt.tx_q_state.paddr,
115 void ath10k_htt_tx_txq_recalc(struct ieee80211_hw *hw,
116 struct ieee80211_txq *txq)
118 struct ath10k *ar = hw->priv;
120 spin_lock_bh(&ar->htt.tx_lock);
121 __ath10k_htt_tx_txq_recalc(hw, txq);
122 spin_unlock_bh(&ar->htt.tx_lock);
125 void ath10k_htt_tx_txq_sync(struct ath10k *ar)
127 spin_lock_bh(&ar->htt.tx_lock);
128 __ath10k_htt_tx_txq_sync(ar);
129 spin_unlock_bh(&ar->htt.tx_lock);
132 void ath10k_htt_tx_txq_update(struct ieee80211_hw *hw,
133 struct ieee80211_txq *txq)
135 struct ath10k *ar = hw->priv;
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);
143 void ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
145 lockdep_assert_held(&htt->tx_lock);
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);
151 if (htt->num_pending_tx == 0)
152 wake_up(&htt->empty_tx_wq);
155 int ath10k_htt_tx_inc_pending(struct ath10k_htt *htt)
157 lockdep_assert_held(&htt->tx_lock);
159 if (htt->num_pending_tx >= htt->max_num_pending_tx)
162 htt->num_pending_tx++;
163 if (htt->num_pending_tx == htt->max_num_pending_tx)
164 ath10k_mac_tx_lock(htt->ar, ATH10K_TX_PAUSE_Q_FULL);
169 int ath10k_htt_tx_mgmt_inc_pending(struct ath10k_htt *htt, bool is_mgmt,
172 struct ath10k *ar = htt->ar;
174 lockdep_assert_held(&htt->tx_lock);
176 if (!is_mgmt || !ar->hw_params.max_probe_resp_desc_thres)
180 ar->hw_params.max_probe_resp_desc_thres < htt->num_pending_mgmt_tx)
183 htt->num_pending_mgmt_tx++;
188 void ath10k_htt_tx_mgmt_dec_pending(struct ath10k_htt *htt)
190 lockdep_assert_held(&htt->tx_lock);
192 if (!htt->ar->hw_params.max_probe_resp_desc_thres)
195 htt->num_pending_mgmt_tx--;
198 int ath10k_htt_tx_alloc_msdu_id(struct ath10k_htt *htt, struct sk_buff *skb)
200 struct ath10k *ar = htt->ar;
203 spin_lock_bh(&htt->tx_lock);
204 ret = idr_alloc(&htt->pending_tx, skb, 0,
205 htt->max_num_pending_tx, GFP_ATOMIC);
206 spin_unlock_bh(&htt->tx_lock);
208 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx alloc msdu_id %d\n", ret);
213 void ath10k_htt_tx_free_msdu_id(struct ath10k_htt *htt, u16 msdu_id)
215 struct ath10k *ar = htt->ar;
217 lockdep_assert_held(&htt->tx_lock);
219 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx free msdu_id %u\n", msdu_id);
221 idr_remove(&htt->pending_tx, msdu_id);
224 static void ath10k_htt_tx_free_cont_txbuf_32(struct ath10k_htt *htt)
226 struct ath10k *ar = htt->ar;
229 if (!htt->txbuf.vaddr_txbuff_32)
232 size = htt->txbuf.size;
233 dma_free_coherent(ar->dev, size, htt->txbuf.vaddr_txbuff_32,
235 htt->txbuf.vaddr_txbuff_32 = NULL;
238 static int ath10k_htt_tx_alloc_cont_txbuf_32(struct ath10k_htt *htt)
240 struct ath10k *ar = htt->ar;
243 size = htt->max_num_pending_tx *
244 sizeof(struct ath10k_htt_txbuf_32);
246 htt->txbuf.vaddr_txbuff_32 = dma_alloc_coherent(ar->dev, size,
249 if (!htt->txbuf.vaddr_txbuff_32)
252 htt->txbuf.size = size;
257 static void ath10k_htt_tx_free_cont_txbuf_64(struct ath10k_htt *htt)
259 struct ath10k *ar = htt->ar;
262 if (!htt->txbuf.vaddr_txbuff_64)
265 size = htt->txbuf.size;
266 dma_free_coherent(ar->dev, size, htt->txbuf.vaddr_txbuff_64,
268 htt->txbuf.vaddr_txbuff_64 = NULL;
271 static int ath10k_htt_tx_alloc_cont_txbuf_64(struct ath10k_htt *htt)
273 struct ath10k *ar = htt->ar;
276 size = htt->max_num_pending_tx *
277 sizeof(struct ath10k_htt_txbuf_64);
279 htt->txbuf.vaddr_txbuff_64 = dma_alloc_coherent(ar->dev, size,
282 if (!htt->txbuf.vaddr_txbuff_64)
285 htt->txbuf.size = size;
290 static void ath10k_htt_tx_free_cont_frag_desc_32(struct ath10k_htt *htt)
294 if (!htt->frag_desc.vaddr_desc_32)
297 size = htt->max_num_pending_tx *
298 sizeof(struct htt_msdu_ext_desc);
300 dma_free_coherent(htt->ar->dev,
302 htt->frag_desc.vaddr_desc_32,
303 htt->frag_desc.paddr);
305 htt->frag_desc.vaddr_desc_32 = NULL;
308 static int ath10k_htt_tx_alloc_cont_frag_desc_32(struct ath10k_htt *htt)
310 struct ath10k *ar = htt->ar;
313 if (!ar->hw_params.continuous_frag_desc)
316 size = htt->max_num_pending_tx *
317 sizeof(struct htt_msdu_ext_desc);
318 htt->frag_desc.vaddr_desc_32 = dma_alloc_coherent(ar->dev, size,
319 &htt->frag_desc.paddr,
321 if (!htt->frag_desc.vaddr_desc_32) {
322 ath10k_err(ar, "failed to alloc fragment desc memory\n");
325 htt->frag_desc.size = size;
330 static void ath10k_htt_tx_free_cont_frag_desc_64(struct ath10k_htt *htt)
334 if (!htt->frag_desc.vaddr_desc_64)
337 size = htt->max_num_pending_tx *
338 sizeof(struct htt_msdu_ext_desc_64);
340 dma_free_coherent(htt->ar->dev,
342 htt->frag_desc.vaddr_desc_64,
343 htt->frag_desc.paddr);
345 htt->frag_desc.vaddr_desc_64 = NULL;
348 static int ath10k_htt_tx_alloc_cont_frag_desc_64(struct ath10k_htt *htt)
350 struct ath10k *ar = htt->ar;
353 if (!ar->hw_params.continuous_frag_desc)
356 size = htt->max_num_pending_tx *
357 sizeof(struct htt_msdu_ext_desc_64);
359 htt->frag_desc.vaddr_desc_64 = dma_alloc_coherent(ar->dev, size,
360 &htt->frag_desc.paddr,
362 if (!htt->frag_desc.vaddr_desc_64) {
363 ath10k_err(ar, "failed to alloc fragment desc memory\n");
366 htt->frag_desc.size = size;
371 static void ath10k_htt_tx_free_txq(struct ath10k_htt *htt)
373 struct ath10k *ar = htt->ar;
376 if (!test_bit(ATH10K_FW_FEATURE_PEER_FLOW_CONTROL,
377 ar->running_fw->fw_file.fw_features))
380 size = sizeof(*htt->tx_q_state.vaddr);
382 dma_unmap_single(ar->dev, htt->tx_q_state.paddr, size, DMA_TO_DEVICE);
383 kfree(htt->tx_q_state.vaddr);
386 static int ath10k_htt_tx_alloc_txq(struct ath10k_htt *htt)
388 struct ath10k *ar = htt->ar;
392 if (!test_bit(ATH10K_FW_FEATURE_PEER_FLOW_CONTROL,
393 ar->running_fw->fw_file.fw_features))
396 htt->tx_q_state.num_peers = HTT_TX_Q_STATE_NUM_PEERS;
397 htt->tx_q_state.num_tids = HTT_TX_Q_STATE_NUM_TIDS;
398 htt->tx_q_state.type = HTT_Q_DEPTH_TYPE_BYTES;
400 size = sizeof(*htt->tx_q_state.vaddr);
401 htt->tx_q_state.vaddr = kzalloc(size, GFP_KERNEL);
402 if (!htt->tx_q_state.vaddr)
405 htt->tx_q_state.paddr = dma_map_single(ar->dev, htt->tx_q_state.vaddr,
406 size, DMA_TO_DEVICE);
407 ret = dma_mapping_error(ar->dev, htt->tx_q_state.paddr);
409 ath10k_warn(ar, "failed to dma map tx_q_state: %d\n", ret);
410 kfree(htt->tx_q_state.vaddr);
417 static void ath10k_htt_tx_free_txdone_fifo(struct ath10k_htt *htt)
419 WARN_ON(!kfifo_is_empty(&htt->txdone_fifo));
420 kfifo_free(&htt->txdone_fifo);
423 static int ath10k_htt_tx_alloc_txdone_fifo(struct ath10k_htt *htt)
428 size = roundup_pow_of_two(htt->max_num_pending_tx);
429 ret = kfifo_alloc(&htt->txdone_fifo, size, GFP_KERNEL);
433 static int ath10k_htt_tx_alloc_buf(struct ath10k_htt *htt)
435 struct ath10k *ar = htt->ar;
438 ret = ath10k_htt_alloc_txbuff(htt);
440 ath10k_err(ar, "failed to alloc cont tx buffer: %d\n", ret);
444 ret = ath10k_htt_alloc_frag_desc(htt);
446 ath10k_err(ar, "failed to alloc cont frag desc: %d\n", ret);
450 ret = ath10k_htt_tx_alloc_txq(htt);
452 ath10k_err(ar, "failed to alloc txq: %d\n", ret);
456 ret = ath10k_htt_tx_alloc_txdone_fifo(htt);
458 ath10k_err(ar, "failed to alloc txdone fifo: %d\n", ret);
465 ath10k_htt_tx_free_txq(htt);
468 ath10k_htt_free_frag_desc(htt);
471 ath10k_htt_free_txbuff(htt);
476 int ath10k_htt_tx_start(struct ath10k_htt *htt)
478 struct ath10k *ar = htt->ar;
481 ath10k_dbg(ar, ATH10K_DBG_BOOT, "htt tx max num pending tx %d\n",
482 htt->max_num_pending_tx);
484 spin_lock_init(&htt->tx_lock);
485 idr_init(&htt->pending_tx);
487 if (htt->tx_mem_allocated)
490 if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
493 ret = ath10k_htt_tx_alloc_buf(htt);
495 goto free_idr_pending_tx;
497 htt->tx_mem_allocated = true;
502 idr_destroy(&htt->pending_tx);
507 static int ath10k_htt_tx_clean_up_pending(int msdu_id, void *skb, void *ctx)
509 struct ath10k *ar = ctx;
510 struct ath10k_htt *htt = &ar->htt;
511 struct htt_tx_done tx_done = {0};
513 ath10k_dbg(ar, ATH10K_DBG_HTT, "force cleanup msdu_id %u\n", msdu_id);
515 tx_done.msdu_id = msdu_id;
516 tx_done.status = HTT_TX_COMPL_STATE_DISCARD;
518 ath10k_txrx_tx_unref(htt, &tx_done);
523 void ath10k_htt_tx_destroy(struct ath10k_htt *htt)
525 if (!htt->tx_mem_allocated)
528 ath10k_htt_free_txbuff(htt);
529 ath10k_htt_tx_free_txq(htt);
530 ath10k_htt_free_frag_desc(htt);
531 ath10k_htt_tx_free_txdone_fifo(htt);
532 htt->tx_mem_allocated = false;
535 static void ath10k_htt_flush_tx_queue(struct ath10k_htt *htt)
537 ath10k_htc_stop_hl(htt->ar);
538 idr_for_each(&htt->pending_tx, ath10k_htt_tx_clean_up_pending, htt->ar);
541 void ath10k_htt_tx_stop(struct ath10k_htt *htt)
543 ath10k_htt_flush_tx_queue(htt);
544 idr_destroy(&htt->pending_tx);
547 void ath10k_htt_tx_free(struct ath10k_htt *htt)
549 ath10k_htt_tx_stop(htt);
550 ath10k_htt_tx_destroy(htt);
553 void ath10k_htt_op_ep_tx_credits(struct ath10k *ar)
555 queue_work(ar->workqueue, &ar->bundle_tx_work);
558 void ath10k_htt_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb)
560 struct ath10k_htt *htt = &ar->htt;
561 struct htt_tx_done tx_done = {0};
562 struct htt_cmd_hdr *htt_hdr;
563 struct htt_data_tx_desc *desc_hdr = NULL;
567 if (htt->disable_tx_comp) {
568 htt_hdr = (struct htt_cmd_hdr *)skb->data;
569 msg_type = htt_hdr->msg_type;
571 if (msg_type == HTT_H2T_MSG_TYPE_TX_FRM) {
572 desc_hdr = (struct htt_data_tx_desc *)
573 (skb->data + sizeof(*htt_hdr));
574 flags1 = __le16_to_cpu(desc_hdr->flags1);
575 skb_pull(skb, sizeof(struct htt_cmd_hdr));
576 skb_pull(skb, sizeof(struct htt_data_tx_desc));
580 dev_kfree_skb_any(skb);
582 if ((!htt->disable_tx_comp) || (msg_type != HTT_H2T_MSG_TYPE_TX_FRM))
585 ath10k_dbg(ar, ATH10K_DBG_HTT,
586 "htt tx complete msdu id:%u ,flags1:%x\n",
587 __le16_to_cpu(desc_hdr->id), flags1);
589 if (flags1 & HTT_DATA_TX_DESC_FLAGS1_TX_COMPLETE)
592 tx_done.status = HTT_TX_COMPL_STATE_ACK;
593 tx_done.msdu_id = __le16_to_cpu(desc_hdr->id);
594 ath10k_txrx_tx_unref(&ar->htt, &tx_done);
597 void ath10k_htt_hif_tx_complete(struct ath10k *ar, struct sk_buff *skb)
599 dev_kfree_skb_any(skb);
601 EXPORT_SYMBOL(ath10k_htt_hif_tx_complete);
603 int ath10k_htt_h2t_ver_req_msg(struct ath10k_htt *htt)
605 struct ath10k *ar = htt->ar;
611 len += sizeof(cmd->hdr);
612 len += sizeof(cmd->ver_req);
614 skb = ath10k_htc_alloc_skb(ar, len);
619 cmd = (struct htt_cmd *)skb->data;
620 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_VERSION_REQ;
622 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb);
624 dev_kfree_skb_any(skb);
631 int ath10k_htt_h2t_stats_req(struct ath10k_htt *htt, u32 mask, u32 reset_mask,
634 struct ath10k *ar = htt->ar;
635 struct htt_stats_req *req;
640 len += sizeof(cmd->hdr);
641 len += sizeof(cmd->stats_req);
643 skb = ath10k_htc_alloc_skb(ar, len);
648 cmd = (struct htt_cmd *)skb->data;
649 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_STATS_REQ;
651 req = &cmd->stats_req;
653 memset(req, 0, sizeof(*req));
655 /* currently we support only max 24 bit masks so no need to worry
656 * about endian support
658 memcpy(req->upload_types, &mask, 3);
659 memcpy(req->reset_types, &reset_mask, 3);
660 req->stat_type = HTT_STATS_REQ_CFG_STAT_TYPE_INVALID;
661 req->cookie_lsb = cpu_to_le32(cookie & 0xffffffff);
662 req->cookie_msb = cpu_to_le32((cookie & 0xffffffff00000000ULL) >> 32);
664 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb);
666 ath10k_warn(ar, "failed to send htt type stats request: %d",
668 dev_kfree_skb_any(skb);
675 static int ath10k_htt_send_frag_desc_bank_cfg_32(struct ath10k_htt *htt)
677 struct ath10k *ar = htt->ar;
680 struct htt_frag_desc_bank_cfg32 *cfg;
684 if (!ar->hw_params.continuous_frag_desc)
687 if (!htt->frag_desc.paddr) {
688 ath10k_warn(ar, "invalid frag desc memory\n");
692 size = sizeof(cmd->hdr) + sizeof(cmd->frag_desc_bank_cfg32);
693 skb = ath10k_htc_alloc_skb(ar, size);
698 cmd = (struct htt_cmd *)skb->data;
699 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_FRAG_DESC_BANK_CFG;
702 info |= SM(htt->tx_q_state.type,
703 HTT_FRAG_DESC_BANK_CFG_INFO_Q_STATE_DEPTH_TYPE);
705 if (test_bit(ATH10K_FW_FEATURE_PEER_FLOW_CONTROL,
706 ar->running_fw->fw_file.fw_features))
707 info |= HTT_FRAG_DESC_BANK_CFG_INFO_Q_STATE_VALID;
709 cfg = &cmd->frag_desc_bank_cfg32;
712 cfg->desc_size = sizeof(struct htt_msdu_ext_desc);
713 cfg->bank_base_addrs[0] = __cpu_to_le32(htt->frag_desc.paddr);
714 cfg->bank_id[0].bank_min_id = 0;
715 cfg->bank_id[0].bank_max_id = __cpu_to_le16(htt->max_num_pending_tx -
718 cfg->q_state.paddr = cpu_to_le32(htt->tx_q_state.paddr);
719 cfg->q_state.num_peers = cpu_to_le16(htt->tx_q_state.num_peers);
720 cfg->q_state.num_tids = cpu_to_le16(htt->tx_q_state.num_tids);
721 cfg->q_state.record_size = HTT_TX_Q_STATE_ENTRY_SIZE;
722 cfg->q_state.record_multiplier = HTT_TX_Q_STATE_ENTRY_MULTIPLIER;
724 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt frag desc bank cmd\n");
726 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb);
728 ath10k_warn(ar, "failed to send frag desc bank cfg request: %d\n",
730 dev_kfree_skb_any(skb);
737 static int ath10k_htt_send_frag_desc_bank_cfg_64(struct ath10k_htt *htt)
739 struct ath10k *ar = htt->ar;
742 struct htt_frag_desc_bank_cfg64 *cfg;
746 if (!ar->hw_params.continuous_frag_desc)
749 if (!htt->frag_desc.paddr) {
750 ath10k_warn(ar, "invalid frag desc memory\n");
754 size = sizeof(cmd->hdr) + sizeof(cmd->frag_desc_bank_cfg64);
755 skb = ath10k_htc_alloc_skb(ar, size);
760 cmd = (struct htt_cmd *)skb->data;
761 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_FRAG_DESC_BANK_CFG;
764 info |= SM(htt->tx_q_state.type,
765 HTT_FRAG_DESC_BANK_CFG_INFO_Q_STATE_DEPTH_TYPE);
767 if (test_bit(ATH10K_FW_FEATURE_PEER_FLOW_CONTROL,
768 ar->running_fw->fw_file.fw_features))
769 info |= HTT_FRAG_DESC_BANK_CFG_INFO_Q_STATE_VALID;
771 cfg = &cmd->frag_desc_bank_cfg64;
774 cfg->desc_size = sizeof(struct htt_msdu_ext_desc_64);
775 cfg->bank_base_addrs[0] = __cpu_to_le64(htt->frag_desc.paddr);
776 cfg->bank_id[0].bank_min_id = 0;
777 cfg->bank_id[0].bank_max_id = __cpu_to_le16(htt->max_num_pending_tx -
780 cfg->q_state.paddr = cpu_to_le32(htt->tx_q_state.paddr);
781 cfg->q_state.num_peers = cpu_to_le16(htt->tx_q_state.num_peers);
782 cfg->q_state.num_tids = cpu_to_le16(htt->tx_q_state.num_tids);
783 cfg->q_state.record_size = HTT_TX_Q_STATE_ENTRY_SIZE;
784 cfg->q_state.record_multiplier = HTT_TX_Q_STATE_ENTRY_MULTIPLIER;
786 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt frag desc bank cmd\n");
788 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb);
790 ath10k_warn(ar, "failed to send frag desc bank cfg request: %d\n",
792 dev_kfree_skb_any(skb);
799 static void ath10k_htt_fill_rx_desc_offset_32(struct ath10k_hw_params *hw, void *rx_ring)
801 struct htt_rx_ring_setup_ring32 *ring =
802 (struct htt_rx_ring_setup_ring32 *)rx_ring;
804 ath10k_htt_rx_desc_get_offsets(hw, &ring->offsets);
807 static void ath10k_htt_fill_rx_desc_offset_64(struct ath10k_hw_params *hw, void *rx_ring)
809 struct htt_rx_ring_setup_ring64 *ring =
810 (struct htt_rx_ring_setup_ring64 *)rx_ring;
812 ath10k_htt_rx_desc_get_offsets(hw, &ring->offsets);
815 static int ath10k_htt_send_rx_ring_cfg_32(struct ath10k_htt *htt)
817 struct ath10k *ar = htt->ar;
818 struct ath10k_hw_params *hw = &ar->hw_params;
821 struct htt_rx_ring_setup_ring32 *ring;
822 const int num_rx_ring = 1;
829 * the HW expects the buffer to be an integral number of 4-byte
832 BUILD_BUG_ON(!IS_ALIGNED(HTT_RX_BUF_SIZE, 4));
833 BUILD_BUG_ON((HTT_RX_BUF_SIZE & HTT_MAX_CACHE_LINE_SIZE_MASK) != 0);
835 len = sizeof(cmd->hdr) + sizeof(cmd->rx_setup_32.hdr)
836 + (sizeof(*ring) * num_rx_ring);
837 skb = ath10k_htc_alloc_skb(ar, len);
843 cmd = (struct htt_cmd *)skb->data;
844 ring = &cmd->rx_setup_32.rings[0];
846 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_RX_RING_CFG;
847 cmd->rx_setup_32.hdr.num_rings = 1;
849 /* FIXME: do we need all of this? */
851 flags |= HTT_RX_RING_FLAGS_MAC80211_HDR;
852 flags |= HTT_RX_RING_FLAGS_MSDU_PAYLOAD;
853 flags |= HTT_RX_RING_FLAGS_PPDU_START;
854 flags |= HTT_RX_RING_FLAGS_PPDU_END;
855 flags |= HTT_RX_RING_FLAGS_MPDU_START;
856 flags |= HTT_RX_RING_FLAGS_MPDU_END;
857 flags |= HTT_RX_RING_FLAGS_MSDU_START;
858 flags |= HTT_RX_RING_FLAGS_MSDU_END;
859 flags |= HTT_RX_RING_FLAGS_RX_ATTENTION;
860 flags |= HTT_RX_RING_FLAGS_FRAG_INFO;
861 flags |= HTT_RX_RING_FLAGS_UNICAST_RX;
862 flags |= HTT_RX_RING_FLAGS_MULTICAST_RX;
863 flags |= HTT_RX_RING_FLAGS_CTRL_RX;
864 flags |= HTT_RX_RING_FLAGS_MGMT_RX;
865 flags |= HTT_RX_RING_FLAGS_NULL_RX;
866 flags |= HTT_RX_RING_FLAGS_PHY_DATA_RX;
868 fw_idx = __le32_to_cpu(*htt->rx_ring.alloc_idx.vaddr);
870 ring->fw_idx_shadow_reg_paddr =
871 __cpu_to_le32(htt->rx_ring.alloc_idx.paddr);
872 ring->rx_ring_base_paddr = __cpu_to_le32(htt->rx_ring.base_paddr);
873 ring->rx_ring_len = __cpu_to_le16(htt->rx_ring.size);
874 ring->rx_ring_bufsize = __cpu_to_le16(HTT_RX_BUF_SIZE);
875 ring->flags = __cpu_to_le16(flags);
876 ring->fw_idx_init_val = __cpu_to_le16(fw_idx);
878 ath10k_htt_fill_rx_desc_offset_32(hw, ring);
879 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb);
881 dev_kfree_skb_any(skb);
888 static int ath10k_htt_send_rx_ring_cfg_64(struct ath10k_htt *htt)
890 struct ath10k *ar = htt->ar;
891 struct ath10k_hw_params *hw = &ar->hw_params;
894 struct htt_rx_ring_setup_ring64 *ring;
895 const int num_rx_ring = 1;
901 /* HW expects the buffer to be an integral number of 4-byte
904 BUILD_BUG_ON(!IS_ALIGNED(HTT_RX_BUF_SIZE, 4));
905 BUILD_BUG_ON((HTT_RX_BUF_SIZE & HTT_MAX_CACHE_LINE_SIZE_MASK) != 0);
907 len = sizeof(cmd->hdr) + sizeof(cmd->rx_setup_64.hdr)
908 + (sizeof(*ring) * num_rx_ring);
909 skb = ath10k_htc_alloc_skb(ar, len);
915 cmd = (struct htt_cmd *)skb->data;
916 ring = &cmd->rx_setup_64.rings[0];
918 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_RX_RING_CFG;
919 cmd->rx_setup_64.hdr.num_rings = 1;
922 flags |= HTT_RX_RING_FLAGS_MAC80211_HDR;
923 flags |= HTT_RX_RING_FLAGS_MSDU_PAYLOAD;
924 flags |= HTT_RX_RING_FLAGS_PPDU_START;
925 flags |= HTT_RX_RING_FLAGS_PPDU_END;
926 flags |= HTT_RX_RING_FLAGS_MPDU_START;
927 flags |= HTT_RX_RING_FLAGS_MPDU_END;
928 flags |= HTT_RX_RING_FLAGS_MSDU_START;
929 flags |= HTT_RX_RING_FLAGS_MSDU_END;
930 flags |= HTT_RX_RING_FLAGS_RX_ATTENTION;
931 flags |= HTT_RX_RING_FLAGS_FRAG_INFO;
932 flags |= HTT_RX_RING_FLAGS_UNICAST_RX;
933 flags |= HTT_RX_RING_FLAGS_MULTICAST_RX;
934 flags |= HTT_RX_RING_FLAGS_CTRL_RX;
935 flags |= HTT_RX_RING_FLAGS_MGMT_RX;
936 flags |= HTT_RX_RING_FLAGS_NULL_RX;
937 flags |= HTT_RX_RING_FLAGS_PHY_DATA_RX;
939 fw_idx = __le32_to_cpu(*htt->rx_ring.alloc_idx.vaddr);
941 ring->fw_idx_shadow_reg_paddr = __cpu_to_le64(htt->rx_ring.alloc_idx.paddr);
942 ring->rx_ring_base_paddr = __cpu_to_le64(htt->rx_ring.base_paddr);
943 ring->rx_ring_len = __cpu_to_le16(htt->rx_ring.size);
944 ring->rx_ring_bufsize = __cpu_to_le16(HTT_RX_BUF_SIZE);
945 ring->flags = __cpu_to_le16(flags);
946 ring->fw_idx_init_val = __cpu_to_le16(fw_idx);
948 ath10k_htt_fill_rx_desc_offset_64(hw, ring);
949 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb);
951 dev_kfree_skb_any(skb);
958 static int ath10k_htt_send_rx_ring_cfg_hl(struct ath10k_htt *htt)
960 struct ath10k *ar = htt->ar;
963 struct htt_rx_ring_setup_ring32 *ring;
964 const int num_rx_ring = 1;
970 * the HW expects the buffer to be an integral number of 4-byte
973 BUILD_BUG_ON(!IS_ALIGNED(HTT_RX_BUF_SIZE, 4));
974 BUILD_BUG_ON((HTT_RX_BUF_SIZE & HTT_MAX_CACHE_LINE_SIZE_MASK) != 0);
976 len = sizeof(cmd->hdr) + sizeof(cmd->rx_setup_32.hdr)
977 + (sizeof(*ring) * num_rx_ring);
978 skb = ath10k_htc_alloc_skb(ar, len);
984 cmd = (struct htt_cmd *)skb->data;
985 ring = &cmd->rx_setup_32.rings[0];
987 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_RX_RING_CFG;
988 cmd->rx_setup_32.hdr.num_rings = 1;
991 flags |= HTT_RX_RING_FLAGS_MSDU_PAYLOAD;
992 flags |= HTT_RX_RING_FLAGS_UNICAST_RX;
993 flags |= HTT_RX_RING_FLAGS_MULTICAST_RX;
995 memset(ring, 0, sizeof(*ring));
996 ring->rx_ring_len = __cpu_to_le16(HTT_RX_RING_SIZE_MIN);
997 ring->rx_ring_bufsize = __cpu_to_le16(HTT_RX_BUF_SIZE);
998 ring->flags = __cpu_to_le16(flags);
1000 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb);
1002 dev_kfree_skb_any(skb);
1009 static int ath10k_htt_h2t_aggr_cfg_msg_32(struct ath10k_htt *htt,
1010 u8 max_subfrms_ampdu,
1011 u8 max_subfrms_amsdu)
1013 struct ath10k *ar = htt->ar;
1014 struct htt_aggr_conf *aggr_conf;
1015 struct sk_buff *skb;
1016 struct htt_cmd *cmd;
1020 /* Firmware defaults are: amsdu = 3 and ampdu = 64 */
1022 if (max_subfrms_ampdu == 0 || max_subfrms_ampdu > 64)
1025 if (max_subfrms_amsdu == 0 || max_subfrms_amsdu > 31)
1028 len = sizeof(cmd->hdr);
1029 len += sizeof(cmd->aggr_conf);
1031 skb = ath10k_htc_alloc_skb(ar, len);
1036 cmd = (struct htt_cmd *)skb->data;
1037 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_AGGR_CFG;
1039 aggr_conf = &cmd->aggr_conf;
1040 aggr_conf->max_num_ampdu_subframes = max_subfrms_ampdu;
1041 aggr_conf->max_num_amsdu_subframes = max_subfrms_amsdu;
1043 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt h2t aggr cfg msg amsdu %d ampdu %d",
1044 aggr_conf->max_num_amsdu_subframes,
1045 aggr_conf->max_num_ampdu_subframes);
1047 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb);
1049 dev_kfree_skb_any(skb);
1056 static int ath10k_htt_h2t_aggr_cfg_msg_v2(struct ath10k_htt *htt,
1057 u8 max_subfrms_ampdu,
1058 u8 max_subfrms_amsdu)
1060 struct ath10k *ar = htt->ar;
1061 struct htt_aggr_conf_v2 *aggr_conf;
1062 struct sk_buff *skb;
1063 struct htt_cmd *cmd;
1067 /* Firmware defaults are: amsdu = 3 and ampdu = 64 */
1069 if (max_subfrms_ampdu == 0 || max_subfrms_ampdu > 64)
1072 if (max_subfrms_amsdu == 0 || max_subfrms_amsdu > 31)
1075 len = sizeof(cmd->hdr);
1076 len += sizeof(cmd->aggr_conf_v2);
1078 skb = ath10k_htc_alloc_skb(ar, len);
1083 cmd = (struct htt_cmd *)skb->data;
1084 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_AGGR_CFG;
1086 aggr_conf = &cmd->aggr_conf_v2;
1087 aggr_conf->max_num_ampdu_subframes = max_subfrms_ampdu;
1088 aggr_conf->max_num_amsdu_subframes = max_subfrms_amsdu;
1090 ath10k_dbg(ar, ATH10K_DBG_HTT, "htt h2t aggr cfg msg amsdu %d ampdu %d",
1091 aggr_conf->max_num_amsdu_subframes,
1092 aggr_conf->max_num_ampdu_subframes);
1094 ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb);
1096 dev_kfree_skb_any(skb);
1103 int ath10k_htt_tx_fetch_resp(struct ath10k *ar,
1105 __le16 fetch_seq_num,
1106 struct htt_tx_fetch_record *records,
1109 struct sk_buff *skb;
1110 struct htt_cmd *cmd;
1111 const u16 resp_id = 0;
1115 /* Response IDs are echo-ed back only for host driver convienence
1116 * purposes. They aren't used for anything in the driver yet so use 0.
1119 len += sizeof(cmd->hdr);
1120 len += sizeof(cmd->tx_fetch_resp);
1121 len += sizeof(cmd->tx_fetch_resp.records[0]) * num_records;
1123 skb = ath10k_htc_alloc_skb(ar, len);
1128 cmd = (struct htt_cmd *)skb->data;
1129 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_TX_FETCH_RESP;
1130 cmd->tx_fetch_resp.resp_id = cpu_to_le16(resp_id);
1131 cmd->tx_fetch_resp.fetch_seq_num = fetch_seq_num;
1132 cmd->tx_fetch_resp.num_records = cpu_to_le16(num_records);
1133 cmd->tx_fetch_resp.token = token;
1135 memcpy(cmd->tx_fetch_resp.records, records,
1136 sizeof(records[0]) * num_records);
1138 ret = ath10k_htc_send(&ar->htc, ar->htt.eid, skb);
1140 ath10k_warn(ar, "failed to submit htc command: %d\n", ret);
1147 dev_kfree_skb_any(skb);
1152 static u8 ath10k_htt_tx_get_vdev_id(struct ath10k *ar, struct sk_buff *skb)
1154 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1155 struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
1156 struct ath10k_vif *arvif;
1158 if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
1159 return ar->scan.vdev_id;
1160 } else if (cb->vif) {
1161 arvif = (void *)cb->vif->drv_priv;
1162 return arvif->vdev_id;
1163 } else if (ar->monitor_started) {
1164 return ar->monitor_vdev_id;
1170 static u8 ath10k_htt_tx_get_tid(struct sk_buff *skb, bool is_eth)
1172 struct ieee80211_hdr *hdr = (void *)skb->data;
1173 struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
1175 if (!is_eth && ieee80211_is_mgmt(hdr->frame_control))
1176 return HTT_DATA_TX_EXT_TID_MGMT;
1177 else if (cb->flags & ATH10K_SKB_F_QOS)
1178 return skb->priority & IEEE80211_QOS_CTL_TID_MASK;
1180 return HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
1183 int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
1185 struct ath10k *ar = htt->ar;
1186 struct device *dev = ar->dev;
1187 struct sk_buff *txdesc = NULL;
1188 struct htt_cmd *cmd;
1189 struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(msdu);
1190 u8 vdev_id = ath10k_htt_tx_get_vdev_id(ar, msdu);
1194 const u8 *peer_addr;
1195 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data;
1197 len += sizeof(cmd->hdr);
1198 len += sizeof(cmd->mgmt_tx);
1200 res = ath10k_htt_tx_alloc_msdu_id(htt, msdu);
1206 if ((ieee80211_is_action(hdr->frame_control) ||
1207 ieee80211_is_deauth(hdr->frame_control) ||
1208 ieee80211_is_disassoc(hdr->frame_control)) &&
1209 ieee80211_has_protected(hdr->frame_control)) {
1210 peer_addr = hdr->addr1;
1211 if (is_multicast_ether_addr(peer_addr)) {
1212 skb_put(msdu, sizeof(struct ieee80211_mmie_16));
1214 if (skb_cb->ucast_cipher == WLAN_CIPHER_SUITE_GCMP ||
1215 skb_cb->ucast_cipher == WLAN_CIPHER_SUITE_GCMP_256)
1216 skb_put(msdu, IEEE80211_GCMP_MIC_LEN);
1218 skb_put(msdu, IEEE80211_CCMP_MIC_LEN);
1222 txdesc = ath10k_htc_alloc_skb(ar, len);
1225 goto err_free_msdu_id;
1228 skb_cb->paddr = dma_map_single(dev, msdu->data, msdu->len,
1230 res = dma_mapping_error(dev, skb_cb->paddr);
1233 goto err_free_txdesc;
1236 skb_put(txdesc, len);
1237 cmd = (struct htt_cmd *)txdesc->data;
1238 memset(cmd, 0, len);
1240 cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_MGMT_TX;
1241 cmd->mgmt_tx.msdu_paddr = __cpu_to_le32(ATH10K_SKB_CB(msdu)->paddr);
1242 cmd->mgmt_tx.len = __cpu_to_le32(msdu->len);
1243 cmd->mgmt_tx.desc_id = __cpu_to_le32(msdu_id);
1244 cmd->mgmt_tx.vdev_id = __cpu_to_le32(vdev_id);
1245 memcpy(cmd->mgmt_tx.hdr, msdu->data,
1246 min_t(int, msdu->len, HTT_MGMT_FRM_HDR_DOWNLOAD_LEN));
1248 res = ath10k_htc_send(&htt->ar->htc, htt->eid, txdesc);
1250 goto err_unmap_msdu;
1255 if (ar->bus_param.dev_type != ATH10K_DEV_TYPE_HL)
1256 dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
1258 dev_kfree_skb_any(txdesc);
1260 spin_lock_bh(&htt->tx_lock);
1261 ath10k_htt_tx_free_msdu_id(htt, msdu_id);
1262 spin_unlock_bh(&htt->tx_lock);
1267 #define HTT_TX_HL_NEEDED_HEADROOM \
1268 (unsigned int)(sizeof(struct htt_cmd_hdr) + \
1269 sizeof(struct htt_data_tx_desc) + \
1270 sizeof(struct ath10k_htc_hdr))
1272 static int ath10k_htt_tx_hl(struct ath10k_htt *htt, enum ath10k_hw_txrx_mode txmode,
1273 struct sk_buff *msdu)
1275 struct ath10k *ar = htt->ar;
1277 struct htt_cmd_hdr *cmd_hdr;
1278 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data;
1279 struct htt_data_tx_desc *tx_desc;
1280 struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(msdu);
1281 struct sk_buff *tmp_skb;
1282 bool is_eth = (txmode == ATH10K_HW_TXRX_ETHERNET);
1283 u8 vdev_id = ath10k_htt_tx_get_vdev_id(ar, msdu);
1284 u8 tid = ath10k_htt_tx_get_tid(msdu, is_eth);
1289 if ((ieee80211_is_action(hdr->frame_control) ||
1290 ieee80211_is_deauth(hdr->frame_control) ||
1291 ieee80211_is_disassoc(hdr->frame_control)) &&
1292 ieee80211_has_protected(hdr->frame_control)) {
1293 skb_put(msdu, IEEE80211_CCMP_MIC_LEN);
1296 data_len = msdu->len;
1299 case ATH10K_HW_TXRX_RAW:
1300 case ATH10K_HW_TXRX_NATIVE_WIFI:
1301 flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT;
1303 case ATH10K_HW_TXRX_ETHERNET:
1304 flags0 |= SM(txmode, HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE);
1306 case ATH10K_HW_TXRX_MGMT:
1307 flags0 |= SM(ATH10K_HW_TXRX_MGMT,
1308 HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE);
1309 flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT;
1311 if (htt->disable_tx_comp)
1312 flags1 |= HTT_DATA_TX_DESC_FLAGS1_TX_COMPLETE;
1316 if (skb_cb->flags & ATH10K_SKB_F_NO_HWCRYPT)
1317 flags0 |= HTT_DATA_TX_DESC_FLAGS0_NO_ENCRYPT;
1319 flags1 |= SM((u16)vdev_id, HTT_DATA_TX_DESC_FLAGS1_VDEV_ID);
1320 flags1 |= SM((u16)tid, HTT_DATA_TX_DESC_FLAGS1_EXT_TID);
1321 if (msdu->ip_summed == CHECKSUM_PARTIAL &&
1322 !test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
1323 flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD;
1324 flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD;
1327 /* Prepend the HTT header and TX desc struct to the data message
1328 * and realloc the skb if it does not have enough headroom.
1330 if (skb_headroom(msdu) < HTT_TX_HL_NEEDED_HEADROOM) {
1333 ath10k_dbg(htt->ar, ATH10K_DBG_HTT,
1334 "Not enough headroom in skb. Current headroom: %u, needed: %u. Reallocating...\n",
1335 skb_headroom(msdu), HTT_TX_HL_NEEDED_HEADROOM);
1336 msdu = skb_realloc_headroom(msdu, HTT_TX_HL_NEEDED_HEADROOM);
1339 ath10k_warn(htt->ar, "htt hl tx: Unable to realloc skb!\n");
1345 if (ar->bus_param.hl_msdu_ids) {
1346 flags1 |= HTT_DATA_TX_DESC_FLAGS1_POSTPONED;
1347 res = ath10k_htt_tx_alloc_msdu_id(htt, msdu);
1349 ath10k_err(ar, "msdu_id allocation failed %d\n", res);
1355 /* As msdu is freed by mac80211 (in ieee80211_tx_status()) and by
1356 * ath10k (in ath10k_htt_htc_tx_complete()) we have to increase
1357 * reference by one to avoid a use-after-free case and a double
1362 skb_push(msdu, sizeof(*cmd_hdr));
1363 skb_push(msdu, sizeof(*tx_desc));
1364 cmd_hdr = (struct htt_cmd_hdr *)msdu->data;
1365 tx_desc = (struct htt_data_tx_desc *)(msdu->data + sizeof(*cmd_hdr));
1367 cmd_hdr->msg_type = HTT_H2T_MSG_TYPE_TX_FRM;
1368 tx_desc->flags0 = flags0;
1369 tx_desc->flags1 = __cpu_to_le16(flags1);
1370 tx_desc->len = __cpu_to_le16(data_len);
1371 tx_desc->id = __cpu_to_le16(msdu_id);
1372 tx_desc->frags_paddr = 0; /* always zero */
1373 /* Initialize peer_id to INVALID_PEER because this is NOT
1376 tx_desc->peerid = __cpu_to_le32(HTT_INVALID_PEERID);
1378 res = ath10k_htc_send_hl(&htt->ar->htc, htt->eid, msdu);
1384 static int ath10k_htt_tx_32(struct ath10k_htt *htt,
1385 enum ath10k_hw_txrx_mode txmode,
1386 struct sk_buff *msdu)
1388 struct ath10k *ar = htt->ar;
1389 struct device *dev = ar->dev;
1390 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data;
1391 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(msdu);
1392 struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(msdu);
1393 struct ath10k_hif_sg_item sg_items[2];
1394 struct ath10k_htt_txbuf_32 *txbuf;
1395 struct htt_data_tx_desc_frag *frags;
1396 bool is_eth = (txmode == ATH10K_HW_TXRX_ETHERNET);
1397 u8 vdev_id = ath10k_htt_tx_get_vdev_id(ar, msdu);
1398 u8 tid = ath10k_htt_tx_get_tid(msdu, is_eth);
1402 u16 msdu_id, flags1 = 0;
1404 u32 frags_paddr = 0;
1406 struct htt_msdu_ext_desc *ext_desc = NULL;
1407 struct htt_msdu_ext_desc *ext_desc_t = NULL;
1409 res = ath10k_htt_tx_alloc_msdu_id(htt, msdu);
1415 prefetch_len = min(htt->prefetch_len, msdu->len);
1416 prefetch_len = roundup(prefetch_len, 4);
1418 txbuf = htt->txbuf.vaddr_txbuff_32 + msdu_id;
1419 txbuf_paddr = htt->txbuf.paddr +
1420 (sizeof(struct ath10k_htt_txbuf_32) * msdu_id);
1422 if ((ieee80211_is_action(hdr->frame_control) ||
1423 ieee80211_is_deauth(hdr->frame_control) ||
1424 ieee80211_is_disassoc(hdr->frame_control)) &&
1425 ieee80211_has_protected(hdr->frame_control)) {
1426 skb_put(msdu, IEEE80211_CCMP_MIC_LEN);
1427 } else if (!(skb_cb->flags & ATH10K_SKB_F_NO_HWCRYPT) &&
1428 txmode == ATH10K_HW_TXRX_RAW &&
1429 ieee80211_has_protected(hdr->frame_control)) {
1430 skb_put(msdu, IEEE80211_CCMP_MIC_LEN);
1433 skb_cb->paddr = dma_map_single(dev, msdu->data, msdu->len,
1435 res = dma_mapping_error(dev, skb_cb->paddr);
1438 goto err_free_msdu_id;
1441 if (unlikely(info->flags & IEEE80211_TX_CTL_TX_OFFCHAN))
1442 freq = ar->scan.roc_freq;
1445 case ATH10K_HW_TXRX_RAW:
1446 case ATH10K_HW_TXRX_NATIVE_WIFI:
1447 flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT;
1449 case ATH10K_HW_TXRX_ETHERNET:
1450 if (ar->hw_params.continuous_frag_desc) {
1451 ext_desc_t = htt->frag_desc.vaddr_desc_32;
1452 memset(&ext_desc_t[msdu_id], 0,
1453 sizeof(struct htt_msdu_ext_desc));
1454 frags = (struct htt_data_tx_desc_frag *)
1455 &ext_desc_t[msdu_id].frags;
1456 ext_desc = &ext_desc_t[msdu_id];
1457 frags[0].tword_addr.paddr_lo =
1458 __cpu_to_le32(skb_cb->paddr);
1459 frags[0].tword_addr.paddr_hi = 0;
1460 frags[0].tword_addr.len_16 = __cpu_to_le16(msdu->len);
1462 frags_paddr = htt->frag_desc.paddr +
1463 (sizeof(struct htt_msdu_ext_desc) * msdu_id);
1465 frags = txbuf->frags;
1466 frags[0].dword_addr.paddr =
1467 __cpu_to_le32(skb_cb->paddr);
1468 frags[0].dword_addr.len = __cpu_to_le32(msdu->len);
1469 frags[1].dword_addr.paddr = 0;
1470 frags[1].dword_addr.len = 0;
1472 frags_paddr = txbuf_paddr;
1474 flags0 |= SM(txmode, HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE);
1476 case ATH10K_HW_TXRX_MGMT:
1477 flags0 |= SM(ATH10K_HW_TXRX_MGMT,
1478 HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE);
1479 flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT;
1481 frags_paddr = skb_cb->paddr;
1485 /* Normally all commands go through HTC which manages tx credits for
1486 * each endpoint and notifies when tx is completed.
1488 * HTT endpoint is creditless so there's no need to care about HTC
1489 * flags. In that case it is trivial to fill the HTC header here.
1491 * MSDU transmission is considered completed upon HTT event. This
1492 * implies no relevant resources can be freed until after the event is
1493 * received. That's why HTC tx completion handler itself is ignored by
1494 * setting NULL to transfer_context for all sg items.
1496 * There is simply no point in pushing HTT TX_FRM through HTC tx path
1497 * as it's a waste of resources. By bypassing HTC it is possible to
1498 * avoid extra memory allocations, compress data structures and thus
1499 * improve performance.
1502 txbuf->htc_hdr.eid = htt->eid;
1503 txbuf->htc_hdr.len = __cpu_to_le16(sizeof(txbuf->cmd_hdr) +
1504 sizeof(txbuf->cmd_tx) +
1506 txbuf->htc_hdr.flags = 0;
1508 if (skb_cb->flags & ATH10K_SKB_F_NO_HWCRYPT)
1509 flags0 |= HTT_DATA_TX_DESC_FLAGS0_NO_ENCRYPT;
1511 flags1 |= SM((u16)vdev_id, HTT_DATA_TX_DESC_FLAGS1_VDEV_ID);
1512 flags1 |= SM((u16)tid, HTT_DATA_TX_DESC_FLAGS1_EXT_TID);
1513 if (msdu->ip_summed == CHECKSUM_PARTIAL &&
1514 !test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
1515 flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD;
1516 flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD;
1517 if (ar->hw_params.continuous_frag_desc)
1518 ext_desc->flags |= HTT_MSDU_CHECKSUM_ENABLE;
1521 /* Prevent firmware from sending up tx inspection requests. There's
1522 * nothing ath10k can do with frames requested for inspection so force
1523 * it to simply rely a regular tx completion with discard status.
1525 flags1 |= HTT_DATA_TX_DESC_FLAGS1_POSTPONED;
1527 txbuf->cmd_hdr.msg_type = HTT_H2T_MSG_TYPE_TX_FRM;
1528 txbuf->cmd_tx.flags0 = flags0;
1529 txbuf->cmd_tx.flags1 = __cpu_to_le16(flags1);
1530 txbuf->cmd_tx.len = __cpu_to_le16(msdu->len);
1531 txbuf->cmd_tx.id = __cpu_to_le16(msdu_id);
1532 txbuf->cmd_tx.frags_paddr = __cpu_to_le32(frags_paddr);
1533 if (ath10k_mac_tx_frm_has_freq(ar)) {
1534 txbuf->cmd_tx.offchan_tx.peerid =
1535 __cpu_to_le16(HTT_INVALID_PEERID);
1536 txbuf->cmd_tx.offchan_tx.freq =
1537 __cpu_to_le16(freq);
1539 txbuf->cmd_tx.peerid =
1540 __cpu_to_le32(HTT_INVALID_PEERID);
1543 trace_ath10k_htt_tx(ar, msdu_id, msdu->len, vdev_id, tid);
1544 ath10k_dbg(ar, ATH10K_DBG_HTT,
1545 "htt tx flags0 %u flags1 %u len %d id %u frags_paddr %pad, msdu_paddr %pad vdev %u tid %u freq %u\n",
1546 flags0, flags1, msdu->len, msdu_id, &frags_paddr,
1547 &skb_cb->paddr, vdev_id, tid, freq);
1548 ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt tx msdu: ",
1549 msdu->data, msdu->len);
1550 trace_ath10k_tx_hdr(ar, msdu->data, msdu->len);
1551 trace_ath10k_tx_payload(ar, msdu->data, msdu->len);
1553 sg_items[0].transfer_id = 0;
1554 sg_items[0].transfer_context = NULL;
1555 sg_items[0].vaddr = &txbuf->htc_hdr;
1556 sg_items[0].paddr = txbuf_paddr +
1557 sizeof(txbuf->frags);
1558 sg_items[0].len = sizeof(txbuf->htc_hdr) +
1559 sizeof(txbuf->cmd_hdr) +
1560 sizeof(txbuf->cmd_tx);
1562 sg_items[1].transfer_id = 0;
1563 sg_items[1].transfer_context = NULL;
1564 sg_items[1].vaddr = msdu->data;
1565 sg_items[1].paddr = skb_cb->paddr;
1566 sg_items[1].len = prefetch_len;
1568 res = ath10k_hif_tx_sg(htt->ar,
1569 htt->ar->htc.endpoint[htt->eid].ul_pipe_id,
1570 sg_items, ARRAY_SIZE(sg_items));
1572 goto err_unmap_msdu;
1577 dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
1579 spin_lock_bh(&htt->tx_lock);
1580 ath10k_htt_tx_free_msdu_id(htt, msdu_id);
1581 spin_unlock_bh(&htt->tx_lock);
1586 static int ath10k_htt_tx_64(struct ath10k_htt *htt,
1587 enum ath10k_hw_txrx_mode txmode,
1588 struct sk_buff *msdu)
1590 struct ath10k *ar = htt->ar;
1591 struct device *dev = ar->dev;
1592 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data;
1593 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(msdu);
1594 struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(msdu);
1595 struct ath10k_hif_sg_item sg_items[2];
1596 struct ath10k_htt_txbuf_64 *txbuf;
1597 struct htt_data_tx_desc_frag *frags;
1598 bool is_eth = (txmode == ATH10K_HW_TXRX_ETHERNET);
1599 u8 vdev_id = ath10k_htt_tx_get_vdev_id(ar, msdu);
1600 u8 tid = ath10k_htt_tx_get_tid(msdu, is_eth);
1604 u16 msdu_id, flags1 = 0;
1606 dma_addr_t frags_paddr = 0;
1607 dma_addr_t txbuf_paddr;
1608 struct htt_msdu_ext_desc_64 *ext_desc = NULL;
1609 struct htt_msdu_ext_desc_64 *ext_desc_t = NULL;
1611 res = ath10k_htt_tx_alloc_msdu_id(htt, msdu);
1617 prefetch_len = min(htt->prefetch_len, msdu->len);
1618 prefetch_len = roundup(prefetch_len, 4);
1620 txbuf = htt->txbuf.vaddr_txbuff_64 + msdu_id;
1621 txbuf_paddr = htt->txbuf.paddr +
1622 (sizeof(struct ath10k_htt_txbuf_64) * msdu_id);
1624 if ((ieee80211_is_action(hdr->frame_control) ||
1625 ieee80211_is_deauth(hdr->frame_control) ||
1626 ieee80211_is_disassoc(hdr->frame_control)) &&
1627 ieee80211_has_protected(hdr->frame_control)) {
1628 skb_put(msdu, IEEE80211_CCMP_MIC_LEN);
1629 } else if (!(skb_cb->flags & ATH10K_SKB_F_NO_HWCRYPT) &&
1630 txmode == ATH10K_HW_TXRX_RAW &&
1631 ieee80211_has_protected(hdr->frame_control)) {
1632 skb_put(msdu, IEEE80211_CCMP_MIC_LEN);
1635 skb_cb->paddr = dma_map_single(dev, msdu->data, msdu->len,
1637 res = dma_mapping_error(dev, skb_cb->paddr);
1640 goto err_free_msdu_id;
1643 if (unlikely(info->flags & IEEE80211_TX_CTL_TX_OFFCHAN))
1644 freq = ar->scan.roc_freq;
1647 case ATH10K_HW_TXRX_RAW:
1648 case ATH10K_HW_TXRX_NATIVE_WIFI:
1649 flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT;
1651 case ATH10K_HW_TXRX_ETHERNET:
1652 if (ar->hw_params.continuous_frag_desc) {
1653 ext_desc_t = htt->frag_desc.vaddr_desc_64;
1654 memset(&ext_desc_t[msdu_id], 0,
1655 sizeof(struct htt_msdu_ext_desc_64));
1656 frags = (struct htt_data_tx_desc_frag *)
1657 &ext_desc_t[msdu_id].frags;
1658 ext_desc = &ext_desc_t[msdu_id];
1659 frags[0].tword_addr.paddr_lo =
1660 __cpu_to_le32(skb_cb->paddr);
1661 frags[0].tword_addr.paddr_hi =
1662 __cpu_to_le16(upper_32_bits(skb_cb->paddr));
1663 frags[0].tword_addr.len_16 = __cpu_to_le16(msdu->len);
1665 frags_paddr = htt->frag_desc.paddr +
1666 (sizeof(struct htt_msdu_ext_desc_64) * msdu_id);
1668 frags = txbuf->frags;
1669 frags[0].tword_addr.paddr_lo =
1670 __cpu_to_le32(skb_cb->paddr);
1671 frags[0].tword_addr.paddr_hi =
1672 __cpu_to_le16(upper_32_bits(skb_cb->paddr));
1673 frags[0].tword_addr.len_16 = __cpu_to_le16(msdu->len);
1674 frags[1].tword_addr.paddr_lo = 0;
1675 frags[1].tword_addr.paddr_hi = 0;
1676 frags[1].tword_addr.len_16 = 0;
1678 flags0 |= SM(txmode, HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE);
1680 case ATH10K_HW_TXRX_MGMT:
1681 flags0 |= SM(ATH10K_HW_TXRX_MGMT,
1682 HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE);
1683 flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT;
1685 frags_paddr = skb_cb->paddr;
1689 /* Normally all commands go through HTC which manages tx credits for
1690 * each endpoint and notifies when tx is completed.
1692 * HTT endpoint is creditless so there's no need to care about HTC
1693 * flags. In that case it is trivial to fill the HTC header here.
1695 * MSDU transmission is considered completed upon HTT event. This
1696 * implies no relevant resources can be freed until after the event is
1697 * received. That's why HTC tx completion handler itself is ignored by
1698 * setting NULL to transfer_context for all sg items.
1700 * There is simply no point in pushing HTT TX_FRM through HTC tx path
1701 * as it's a waste of resources. By bypassing HTC it is possible to
1702 * avoid extra memory allocations, compress data structures and thus
1703 * improve performance.
1706 txbuf->htc_hdr.eid = htt->eid;
1707 txbuf->htc_hdr.len = __cpu_to_le16(sizeof(txbuf->cmd_hdr) +
1708 sizeof(txbuf->cmd_tx) +
1710 txbuf->htc_hdr.flags = 0;
1712 if (skb_cb->flags & ATH10K_SKB_F_NO_HWCRYPT)
1713 flags0 |= HTT_DATA_TX_DESC_FLAGS0_NO_ENCRYPT;
1715 flags1 |= SM((u16)vdev_id, HTT_DATA_TX_DESC_FLAGS1_VDEV_ID);
1716 flags1 |= SM((u16)tid, HTT_DATA_TX_DESC_FLAGS1_EXT_TID);
1717 if (msdu->ip_summed == CHECKSUM_PARTIAL &&
1718 !test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
1719 flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD;
1720 flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD;
1721 if (ar->hw_params.continuous_frag_desc) {
1722 memset(ext_desc->tso_flag, 0, sizeof(ext_desc->tso_flag));
1723 ext_desc->tso_flag[3] |=
1724 __cpu_to_le32(HTT_MSDU_CHECKSUM_ENABLE_64);
1728 /* Prevent firmware from sending up tx inspection requests. There's
1729 * nothing ath10k can do with frames requested for inspection so force
1730 * it to simply rely a regular tx completion with discard status.
1732 flags1 |= HTT_DATA_TX_DESC_FLAGS1_POSTPONED;
1734 txbuf->cmd_hdr.msg_type = HTT_H2T_MSG_TYPE_TX_FRM;
1735 txbuf->cmd_tx.flags0 = flags0;
1736 txbuf->cmd_tx.flags1 = __cpu_to_le16(flags1);
1737 txbuf->cmd_tx.len = __cpu_to_le16(msdu->len);
1738 txbuf->cmd_tx.id = __cpu_to_le16(msdu_id);
1740 /* fill fragment descriptor */
1741 txbuf->cmd_tx.frags_paddr = __cpu_to_le64(frags_paddr);
1742 if (ath10k_mac_tx_frm_has_freq(ar)) {
1743 txbuf->cmd_tx.offchan_tx.peerid =
1744 __cpu_to_le16(HTT_INVALID_PEERID);
1745 txbuf->cmd_tx.offchan_tx.freq =
1746 __cpu_to_le16(freq);
1748 txbuf->cmd_tx.peerid =
1749 __cpu_to_le32(HTT_INVALID_PEERID);
1752 trace_ath10k_htt_tx(ar, msdu_id, msdu->len, vdev_id, tid);
1753 ath10k_dbg(ar, ATH10K_DBG_HTT,
1754 "htt tx flags0 %u flags1 %u len %d id %u frags_paddr %pad, msdu_paddr %pad vdev %u tid %u freq %u\n",
1755 flags0, flags1, msdu->len, msdu_id, &frags_paddr,
1756 &skb_cb->paddr, vdev_id, tid, freq);
1757 ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt tx msdu: ",
1758 msdu->data, msdu->len);
1759 trace_ath10k_tx_hdr(ar, msdu->data, msdu->len);
1760 trace_ath10k_tx_payload(ar, msdu->data, msdu->len);
1762 sg_items[0].transfer_id = 0;
1763 sg_items[0].transfer_context = NULL;
1764 sg_items[0].vaddr = &txbuf->htc_hdr;
1765 sg_items[0].paddr = txbuf_paddr +
1766 sizeof(txbuf->frags);
1767 sg_items[0].len = sizeof(txbuf->htc_hdr) +
1768 sizeof(txbuf->cmd_hdr) +
1769 sizeof(txbuf->cmd_tx);
1771 sg_items[1].transfer_id = 0;
1772 sg_items[1].transfer_context = NULL;
1773 sg_items[1].vaddr = msdu->data;
1774 sg_items[1].paddr = skb_cb->paddr;
1775 sg_items[1].len = prefetch_len;
1777 res = ath10k_hif_tx_sg(htt->ar,
1778 htt->ar->htc.endpoint[htt->eid].ul_pipe_id,
1779 sg_items, ARRAY_SIZE(sg_items));
1781 goto err_unmap_msdu;
1786 dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
1788 spin_lock_bh(&htt->tx_lock);
1789 ath10k_htt_tx_free_msdu_id(htt, msdu_id);
1790 spin_unlock_bh(&htt->tx_lock);
1795 static const struct ath10k_htt_tx_ops htt_tx_ops_32 = {
1796 .htt_send_rx_ring_cfg = ath10k_htt_send_rx_ring_cfg_32,
1797 .htt_send_frag_desc_bank_cfg = ath10k_htt_send_frag_desc_bank_cfg_32,
1798 .htt_alloc_frag_desc = ath10k_htt_tx_alloc_cont_frag_desc_32,
1799 .htt_free_frag_desc = ath10k_htt_tx_free_cont_frag_desc_32,
1800 .htt_tx = ath10k_htt_tx_32,
1801 .htt_alloc_txbuff = ath10k_htt_tx_alloc_cont_txbuf_32,
1802 .htt_free_txbuff = ath10k_htt_tx_free_cont_txbuf_32,
1803 .htt_h2t_aggr_cfg_msg = ath10k_htt_h2t_aggr_cfg_msg_32,
1806 static const struct ath10k_htt_tx_ops htt_tx_ops_64 = {
1807 .htt_send_rx_ring_cfg = ath10k_htt_send_rx_ring_cfg_64,
1808 .htt_send_frag_desc_bank_cfg = ath10k_htt_send_frag_desc_bank_cfg_64,
1809 .htt_alloc_frag_desc = ath10k_htt_tx_alloc_cont_frag_desc_64,
1810 .htt_free_frag_desc = ath10k_htt_tx_free_cont_frag_desc_64,
1811 .htt_tx = ath10k_htt_tx_64,
1812 .htt_alloc_txbuff = ath10k_htt_tx_alloc_cont_txbuf_64,
1813 .htt_free_txbuff = ath10k_htt_tx_free_cont_txbuf_64,
1814 .htt_h2t_aggr_cfg_msg = ath10k_htt_h2t_aggr_cfg_msg_v2,
1817 static const struct ath10k_htt_tx_ops htt_tx_ops_hl = {
1818 .htt_send_rx_ring_cfg = ath10k_htt_send_rx_ring_cfg_hl,
1819 .htt_send_frag_desc_bank_cfg = ath10k_htt_send_frag_desc_bank_cfg_32,
1820 .htt_tx = ath10k_htt_tx_hl,
1821 .htt_h2t_aggr_cfg_msg = ath10k_htt_h2t_aggr_cfg_msg_32,
1822 .htt_flush_tx = ath10k_htt_flush_tx_queue,
1825 void ath10k_htt_set_tx_ops(struct ath10k_htt *htt)
1827 struct ath10k *ar = htt->ar;
1829 if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
1830 htt->tx_ops = &htt_tx_ops_hl;
1831 else if (ar->hw_params.target_64bit)
1832 htt->tx_ops = &htt_tx_ops_64;
1834 htt->tx_ops = &htt_tx_ops_32;