diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath11k/dp_tx.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/dp_tx.c | 962 |
1 files changed, 962 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath11k/dp_tx.c b/drivers/net/wireless/ath/ath11k/dp_tx.c new file mode 100644 index 000000000000..918305dda106 --- /dev/null +++ b/drivers/net/wireless/ath/ath11k/dp_tx.c @@ -0,0 +1,962 @@ +// SPDX-License-Identifier: BSD-3-Clause-Clear +/* + * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved. + */ + +#include "core.h" +#include "dp_tx.h" +#include "debug.h" +#include "hw.h" + +/* NOTE: Any of the mapped ring id value must not exceed DP_TCL_NUM_RING_MAX */ +static const u8 +ath11k_txq_tcl_ring_map[ATH11K_HW_MAX_QUEUES] = { 0x0, 0x1, 0x2, 0x2 }; + +static enum hal_tcl_encap_type +ath11k_dp_tx_get_encap_type(struct ath11k_vif *arvif, struct sk_buff *skb) +{ + /* TODO: Determine encap type based on vif_type and configuration */ + return HAL_TCL_ENCAP_TYPE_NATIVE_WIFI; +} + +static void ath11k_dp_tx_encap_nwifi(struct sk_buff *skb) +{ + struct ieee80211_hdr *hdr = (void *)skb->data; + u8 *qos_ctl; + + if (!ieee80211_is_data_qos(hdr->frame_control)) + return; + + qos_ctl = ieee80211_get_qos_ctl(hdr); + memmove(skb->data + IEEE80211_QOS_CTL_LEN, + skb->data, (void *)qos_ctl - (void *)skb->data); + skb_pull(skb, IEEE80211_QOS_CTL_LEN); + + hdr = (void *)skb->data; + hdr->frame_control &= ~__cpu_to_le16(IEEE80211_STYPE_QOS_DATA); +} + +static u8 ath11k_dp_tx_get_tid(struct sk_buff *skb) +{ + struct ieee80211_hdr *hdr = (void *)skb->data; + + if (!ieee80211_is_data_qos(hdr->frame_control)) + return HAL_DESC_REO_NON_QOS_TID; + else + return skb->priority & IEEE80211_QOS_CTL_TID_MASK; +} + +static enum hal_encrypt_type ath11k_dp_tx_get_encrypt_type(u32 cipher) +{ + switch (cipher) { + case WLAN_CIPHER_SUITE_WEP40: + return HAL_ENCRYPT_TYPE_WEP_40; + case WLAN_CIPHER_SUITE_WEP104: + return HAL_ENCRYPT_TYPE_WEP_104; + case WLAN_CIPHER_SUITE_TKIP: + return HAL_ENCRYPT_TYPE_TKIP_MIC; + case WLAN_CIPHER_SUITE_CCMP: + return HAL_ENCRYPT_TYPE_CCMP_128; + case WLAN_CIPHER_SUITE_CCMP_256: + return HAL_ENCRYPT_TYPE_CCMP_256; + case WLAN_CIPHER_SUITE_GCMP: + return HAL_ENCRYPT_TYPE_GCMP_128; + case WLAN_CIPHER_SUITE_GCMP_256: + return HAL_ENCRYPT_TYPE_AES_GCMP_256; + default: + return HAL_ENCRYPT_TYPE_OPEN; + } +} + +int ath11k_dp_tx(struct ath11k *ar, struct ath11k_vif *arvif, + struct sk_buff *skb) +{ + struct ath11k_base *ab = ar->ab; + struct ath11k_dp *dp = &ab->dp; + struct hal_tx_info ti = {0}; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ath11k_skb_cb *skb_cb = ATH11K_SKB_CB(skb); + struct hal_srng *tcl_ring; + struct ieee80211_hdr *hdr = (void *)skb->data; + struct dp_tx_ring *tx_ring; + void *hal_tcl_desc; + u8 pool_id; + u8 hal_ring_id; + int ret; + + if (test_bit(ATH11K_FLAG_CRASH_FLUSH, &ar->ab->dev_flags)) + return -ESHUTDOWN; + + if (!ieee80211_is_data(hdr->frame_control)) + return -ENOTSUPP; + + pool_id = skb_get_queue_mapping(skb) & (ATH11K_HW_MAX_QUEUES - 1); + ti.ring_id = ath11k_txq_tcl_ring_map[pool_id]; + + tx_ring = &dp->tx_ring[ti.ring_id]; + + spin_lock_bh(&tx_ring->tx_idr_lock); + ret = idr_alloc(&tx_ring->txbuf_idr, skb, 0, + DP_TX_IDR_SIZE - 1, GFP_ATOMIC); + spin_unlock_bh(&tx_ring->tx_idr_lock); + + if (ret < 0) + return -ENOSPC; + + ti.desc_id = FIELD_PREP(DP_TX_DESC_ID_MAC_ID, ar->pdev_idx) | + FIELD_PREP(DP_TX_DESC_ID_MSDU_ID, ret) | + FIELD_PREP(DP_TX_DESC_ID_POOL_ID, pool_id); + ti.encap_type = ath11k_dp_tx_get_encap_type(arvif, skb); + ti.meta_data_flags = arvif->tcl_metadata; + + if (info->control.hw_key) + ti.encrypt_type = + ath11k_dp_tx_get_encrypt_type(info->control.hw_key->cipher); + else + ti.encrypt_type = HAL_ENCRYPT_TYPE_OPEN; + + ti.addr_search_flags = arvif->hal_addr_search_flags; + ti.search_type = arvif->search_type; + ti.type = HAL_TCL_DESC_TYPE_BUFFER; + ti.pkt_offset = 0; + ti.lmac_id = ar->lmac_id; + ti.bss_ast_hash = arvif->ast_hash; + ti.dscp_tid_tbl_idx = 0; + + if (skb->ip_summed == CHECKSUM_PARTIAL) { + ti.flags0 |= FIELD_PREP(HAL_TCL_DATA_CMD_INFO1_IP4_CKSUM_EN, 1) | + FIELD_PREP(HAL_TCL_DATA_CMD_INFO1_UDP4_CKSUM_EN, 1) | + FIELD_PREP(HAL_TCL_DATA_CMD_INFO1_UDP6_CKSUM_EN, 1) | + FIELD_PREP(HAL_TCL_DATA_CMD_INFO1_TCP4_CKSUM_EN, 1) | + FIELD_PREP(HAL_TCL_DATA_CMD_INFO1_TCP6_CKSUM_EN, 1); + } + + if (ieee80211_vif_is_mesh(arvif->vif)) + ti.flags1 |= FIELD_PREP(HAL_TCL_DATA_CMD_INFO2_MESH_ENABLE, 1); + + ti.flags1 |= FIELD_PREP(HAL_TCL_DATA_CMD_INFO2_TID_OVERWRITE, 1); + + ti.tid = ath11k_dp_tx_get_tid(skb); + + switch (ti.encap_type) { + case HAL_TCL_ENCAP_TYPE_NATIVE_WIFI: + ath11k_dp_tx_encap_nwifi(skb); + break; + case HAL_TCL_ENCAP_TYPE_RAW: + /* TODO: for CHECKSUM_PARTIAL case in raw mode, HW checksum offload + * is not applicable, hence manual checksum calculation using + * skb_checksum_help() is needed + */ + case HAL_TCL_ENCAP_TYPE_ETHERNET: + case HAL_TCL_ENCAP_TYPE_802_3: + /* TODO: Take care of other encap modes as well */ + ret = -EINVAL; + goto fail_remove_idr; + } + + ti.paddr = dma_map_single(ab->dev, skb->data, skb->len, DMA_TO_DEVICE); + if (dma_mapping_error(ab->dev, ti.paddr)) { + ath11k_warn(ab, "failed to DMA map data Tx buffer\n"); + ret = -ENOMEM; + goto fail_remove_idr; + } + + ti.data_len = skb->len; + skb_cb->paddr = ti.paddr; + skb_cb->vif = arvif->vif; + skb_cb->ar = ar; + + hal_ring_id = tx_ring->tcl_data_ring.ring_id; + tcl_ring = &ab->hal.srng_list[hal_ring_id]; + + spin_lock_bh(&tcl_ring->lock); + + ath11k_hal_srng_access_begin(ab, tcl_ring); + + hal_tcl_desc = (void *)ath11k_hal_srng_src_get_next_entry(ab, tcl_ring); + if (!hal_tcl_desc) { + /* NOTE: It is highly unlikely we'll be running out of tcl_ring + * desc because the desc is directly enqueued onto hw queue. + * So add tx packet throttling logic in future if required. + */ + ath11k_hal_srng_access_end(ab, tcl_ring); + spin_unlock_bh(&tcl_ring->lock); + ret = -ENOMEM; + goto fail_unmap_dma; + } + + ath11k_hal_tx_cmd_desc_setup(ab, hal_tcl_desc + + sizeof(struct hal_tlv_hdr), &ti); + + ath11k_hal_srng_access_end(ab, tcl_ring); + + spin_unlock_bh(&tcl_ring->lock); + + atomic_inc(&ar->dp.num_tx_pending); + + return 0; + +fail_unmap_dma: + dma_unmap_single(ab->dev, ti.paddr, ti.data_len, DMA_TO_DEVICE); + +fail_remove_idr: + spin_lock_bh(&tx_ring->tx_idr_lock); + idr_remove(&tx_ring->txbuf_idr, + FIELD_GET(DP_TX_DESC_ID_MSDU_ID, ti.desc_id)); + spin_unlock_bh(&tx_ring->tx_idr_lock); + + return ret; +} + +static void ath11k_dp_tx_free_txbuf(struct ath11k_base *ab, u8 mac_id, + int msdu_id, + struct dp_tx_ring *tx_ring) +{ + struct ath11k *ar; + struct sk_buff *msdu; + struct ath11k_skb_cb *skb_cb; + + spin_lock_bh(&tx_ring->tx_idr_lock); + msdu = idr_find(&tx_ring->txbuf_idr, msdu_id); + if (!msdu) { + ath11k_warn(ab, "tx completion for unknown msdu_id %d\n", + msdu_id); + spin_unlock_bh(&tx_ring->tx_idr_lock); + return; + } + + skb_cb = ATH11K_SKB_CB(msdu); + + idr_remove(&tx_ring->txbuf_idr, msdu_id); + spin_unlock_bh(&tx_ring->tx_idr_lock); + + dma_unmap_single(ab->dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE); + dev_kfree_skb_any(msdu); + + ar = ab->pdevs[mac_id].ar; + if (atomic_dec_and_test(&ar->dp.num_tx_pending)) + wake_up(&ar->dp.tx_empty_waitq); +} + +static void +ath11k_dp_tx_htt_tx_complete_buf(struct ath11k_base *ab, + struct dp_tx_ring *tx_ring, + struct ath11k_dp_htt_wbm_tx_status *ts) +{ + struct sk_buff *msdu; + struct ieee80211_tx_info *info; + struct ath11k_skb_cb *skb_cb; + struct ath11k *ar; + + spin_lock_bh(&tx_ring->tx_idr_lock); + msdu = idr_find(&tx_ring->txbuf_idr, ts->msdu_id); + if (!msdu) { + ath11k_warn(ab, "htt tx completion for unknown msdu_id %d\n", + ts->msdu_id); + spin_unlock_bh(&tx_ring->tx_idr_lock); + return; + } + + skb_cb = ATH11K_SKB_CB(msdu); + info = IEEE80211_SKB_CB(msdu); + + ar = skb_cb->ar; + + idr_remove(&tx_ring->txbuf_idr, ts->msdu_id); + spin_unlock_bh(&tx_ring->tx_idr_lock); + + if (atomic_dec_and_test(&ar->dp.num_tx_pending)) + wake_up(&ar->dp.tx_empty_waitq); + + dma_unmap_single(ab->dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE); + + memset(&info->status, 0, sizeof(info->status)); + + if (ts->acked) { + if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { + info->flags |= IEEE80211_TX_STAT_ACK; + info->status.ack_signal = ATH11K_DEFAULT_NOISE_FLOOR + + ts->ack_rssi; + info->status.is_valid_ack_signal = true; + } else { + info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED; + } + } + + ieee80211_tx_status(ar->hw, msdu); +} + +static void +ath11k_dp_tx_process_htt_tx_complete(struct ath11k_base *ab, + void *desc, u8 mac_id, + u32 msdu_id, struct dp_tx_ring *tx_ring) +{ + struct htt_tx_wbm_completion *status_desc; + struct ath11k_dp_htt_wbm_tx_status ts = {0}; + enum hal_wbm_htt_tx_comp_status wbm_status; + + status_desc = desc + HTT_TX_WBM_COMP_STATUS_OFFSET; + + wbm_status = FIELD_GET(HTT_TX_WBM_COMP_INFO0_STATUS, + status_desc->info0); + + switch (wbm_status) { + case HAL_WBM_REL_HTT_TX_COMP_STATUS_OK: + case HAL_WBM_REL_HTT_TX_COMP_STATUS_DROP: + case HAL_WBM_REL_HTT_TX_COMP_STATUS_TTL: + ts.acked = (wbm_status == HAL_WBM_REL_HTT_TX_COMP_STATUS_OK); + ts.msdu_id = msdu_id; + ts.ack_rssi = FIELD_GET(HTT_TX_WBM_COMP_INFO1_ACK_RSSI, + status_desc->info1); + ath11k_dp_tx_htt_tx_complete_buf(ab, tx_ring, &ts); + break; + case HAL_WBM_REL_HTT_TX_COMP_STATUS_REINJ: + case HAL_WBM_REL_HTT_TX_COMP_STATUS_INSPECT: + ath11k_dp_tx_free_txbuf(ab, mac_id, msdu_id, tx_ring); + break; + case HAL_WBM_REL_HTT_TX_COMP_STATUS_MEC_NOTIFY: + /* This event is to be handled only when the driver decides to + * use WDS offload functionality. + */ + break; + default: + ath11k_warn(ab, "Unknown htt tx status %d\n", wbm_status); + break; + } +} + +static void ath11k_dp_tx_cache_peer_stats(struct ath11k *ar, + struct sk_buff *msdu, + struct hal_tx_status *ts) +{ + struct ath11k_per_peer_tx_stats *peer_stats = &ar->cached_stats; + + if (ts->try_cnt > 1) { + peer_stats->retry_pkts += ts->try_cnt - 1; + peer_stats->retry_bytes += (ts->try_cnt - 1) * msdu->len; + + if (ts->status != HAL_WBM_TQM_REL_REASON_FRAME_ACKED) { + peer_stats->failed_pkts += 1; + peer_stats->failed_bytes += msdu->len; + } + } +} + +static void ath11k_dp_tx_complete_msdu(struct ath11k *ar, + struct sk_buff *msdu, + struct hal_tx_status *ts) +{ + struct ath11k_base *ab = ar->ab; + struct ieee80211_tx_info *info; + struct ath11k_skb_cb *skb_cb; + + if (WARN_ON_ONCE(ts->buf_rel_source != HAL_WBM_REL_SRC_MODULE_TQM)) { + /* Must not happen */ + return; + } + + skb_cb = ATH11K_SKB_CB(msdu); + + dma_unmap_single(ab->dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE); + + rcu_read_lock(); + + if (!rcu_dereference(ab->pdevs_active[ar->pdev_idx])) { + dev_kfree_skb_any(msdu); + goto exit; + } + + if (!skb_cb->vif) { + dev_kfree_skb_any(msdu); + goto exit; + } + + info = IEEE80211_SKB_CB(msdu); + memset(&info->status, 0, sizeof(info->status)); + + /* skip tx rate update from ieee80211_status*/ + info->status.rates[0].idx = -1; + + if (ts->status == HAL_WBM_TQM_REL_REASON_FRAME_ACKED && + !(info->flags & IEEE80211_TX_CTL_NO_ACK)) { + info->flags |= IEEE80211_TX_STAT_ACK; + info->status.ack_signal = ATH11K_DEFAULT_NOISE_FLOOR + + ts->ack_rssi; + info->status.is_valid_ack_signal = true; + } + + if (ts->status == HAL_WBM_TQM_REL_REASON_CMD_REMOVE_TX && + (info->flags & IEEE80211_TX_CTL_NO_ACK)) + info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED; + + if (ath11k_debug_is_extd_tx_stats_enabled(ar)) { + if (ts->flags & HAL_TX_STATUS_FLAGS_FIRST_MSDU) { + if (ar->last_ppdu_id == 0) { + ar->last_ppdu_id = ts->ppdu_id; + } else if (ar->last_ppdu_id == ts->ppdu_id || + ar->cached_ppdu_id == ar->last_ppdu_id) { + ar->cached_ppdu_id = ar->last_ppdu_id; + ar->cached_stats.is_ampdu = true; + ath11k_update_per_peer_stats_from_txcompl(ar, msdu, ts); + memset(&ar->cached_stats, 0, + sizeof(struct ath11k_per_peer_tx_stats)); + } else { + ar->cached_stats.is_ampdu = false; + ath11k_update_per_peer_stats_from_txcompl(ar, msdu, ts); + memset(&ar->cached_stats, 0, + sizeof(struct ath11k_per_peer_tx_stats)); + } + ar->last_ppdu_id = ts->ppdu_id; + } + + ath11k_dp_tx_cache_peer_stats(ar, msdu, ts); + } + + /* NOTE: Tx rate status reporting. Tx completion status does not have + * necessary information (for example nss) to build the tx rate. + * Might end up reporting it out-of-band from HTT stats. + */ + + ieee80211_tx_status(ar->hw, msdu); + +exit: + rcu_read_unlock(); +} + +static inline void ath11k_dp_tx_status_parse(struct ath11k_base *ab, + struct hal_wbm_release_ring *desc, + struct hal_tx_status *ts) +{ + ts->buf_rel_source = + FIELD_GET(HAL_WBM_RELEASE_INFO0_REL_SRC_MODULE, desc->info0); + if (ts->buf_rel_source != HAL_WBM_REL_SRC_MODULE_FW && + ts->buf_rel_source != HAL_WBM_REL_SRC_MODULE_TQM) + return; + + if (ts->buf_rel_source == HAL_WBM_REL_SRC_MODULE_FW) + return; + + ts->status = FIELD_GET(HAL_WBM_RELEASE_INFO0_TQM_RELEASE_REASON, + desc->info0); + ts->ppdu_id = FIELD_GET(HAL_WBM_RELEASE_INFO1_TQM_STATUS_NUMBER, + desc->info1); + ts->try_cnt = FIELD_GET(HAL_WBM_RELEASE_INFO1_TRANSMIT_COUNT, + desc->info1); + ts->ack_rssi = FIELD_GET(HAL_WBM_RELEASE_INFO2_ACK_FRAME_RSSI, + desc->info2); + if (desc->info2 & HAL_WBM_RELEASE_INFO2_FIRST_MSDU) + ts->flags |= HAL_TX_STATUS_FLAGS_FIRST_MSDU; + ts->peer_id = FIELD_GET(HAL_WBM_RELEASE_INFO3_PEER_ID, desc->info3); + ts->tid = FIELD_GET(HAL_WBM_RELEASE_INFO3_TID, desc->info3); + if (desc->rate_stats.info0 & HAL_TX_RATE_STATS_INFO0_VALID) + ts->rate_stats = desc->rate_stats.info0; + else + ts->rate_stats = 0; +} + +void ath11k_dp_tx_completion_handler(struct ath11k_base *ab, int ring_id) +{ + struct ath11k *ar; + struct ath11k_dp *dp = &ab->dp; + int hal_ring_id = dp->tx_ring[ring_id].tcl_comp_ring.ring_id; + struct hal_srng *status_ring = &ab->hal.srng_list[hal_ring_id]; + struct sk_buff *msdu; + struct hal_tx_status ts; + struct dp_tx_ring *tx_ring = &dp->tx_ring[ring_id]; + u32 *desc; + u32 msdu_id; + u8 mac_id; + + ath11k_hal_srng_access_begin(ab, status_ring); + + while ((ATH11K_TX_COMPL_NEXT(tx_ring->tx_status_head) != + tx_ring->tx_status_tail) && + (desc = ath11k_hal_srng_dst_get_next_entry(ab, status_ring))) { + memcpy(&tx_ring->tx_status[tx_ring->tx_status_head], + desc, sizeof(struct hal_wbm_release_ring)); + tx_ring->tx_status_head = + ATH11K_TX_COMPL_NEXT(tx_ring->tx_status_head); + } + + if ((ath11k_hal_srng_dst_peek(ab, status_ring) != NULL) && + (ATH11K_TX_COMPL_NEXT(tx_ring->tx_status_head) == tx_ring->tx_status_tail)) { + /* TODO: Process pending tx_status messages when kfifo_is_full() */ + ath11k_warn(ab, "Unable to process some of the tx_status ring desc because status_fifo is full\n"); + } + + ath11k_hal_srng_access_end(ab, status_ring); + + while (ATH11K_TX_COMPL_NEXT(tx_ring->tx_status_tail) != tx_ring->tx_status_head) { + struct hal_wbm_release_ring *tx_status; + u32 desc_id; + + tx_ring->tx_status_tail = + ATH11K_TX_COMPL_NEXT(tx_ring->tx_status_tail); + tx_status = &tx_ring->tx_status[tx_ring->tx_status_tail]; + ath11k_dp_tx_status_parse(ab, tx_status, &ts); + + desc_id = FIELD_GET(BUFFER_ADDR_INFO1_SW_COOKIE, + tx_status->buf_addr_info.info1); + mac_id = FIELD_GET(DP_TX_DESC_ID_MAC_ID, desc_id); + msdu_id = FIELD_GET(DP_TX_DESC_ID_MSDU_ID, desc_id); + + if (ts.buf_rel_source == HAL_WBM_REL_SRC_MODULE_FW) { + ath11k_dp_tx_process_htt_tx_complete(ab, + (void *)tx_status, + mac_id, msdu_id, + tx_ring); + continue; + } + + spin_lock_bh(&tx_ring->tx_idr_lock); + msdu = idr_find(&tx_ring->txbuf_idr, msdu_id); + if (!msdu) { + ath11k_warn(ab, "tx completion for unknown msdu_id %d\n", + msdu_id); + spin_unlock_bh(&tx_ring->tx_idr_lock); + continue; + } + idr_remove(&tx_ring->txbuf_idr, msdu_id); + spin_unlock_bh(&tx_ring->tx_idr_lock); + + ar = ab->pdevs[mac_id].ar; + + if (atomic_dec_and_test(&ar->dp.num_tx_pending)) + wake_up(&ar->dp.tx_empty_waitq); + + ath11k_dp_tx_complete_msdu(ar, msdu, &ts); + } +} + +int ath11k_dp_tx_send_reo_cmd(struct ath11k_base *ab, struct dp_rx_tid *rx_tid, + enum hal_reo_cmd_type type, + struct ath11k_hal_reo_cmd *cmd, + void (*cb)(struct ath11k_dp *, void *, + enum hal_reo_cmd_status)) +{ + struct ath11k_dp *dp = &ab->dp; + struct dp_reo_cmd *dp_cmd; + struct hal_srng *cmd_ring; + int cmd_num; + + cmd_ring = &ab->hal.srng_list[dp->reo_cmd_ring.ring_id]; + cmd_num = ath11k_hal_reo_cmd_send(ab, cmd_ring, type, cmd); + + /* reo cmd ring descriptors has cmd_num starting from 1 */ + if (cmd_num <= 0) + return -EINVAL; + + if (!cb) + return 0; + + /* Can this be optimized so that we keep the pending command list only + * for tid delete command to free up the resoruce on the command status + * indication? + */ + dp_cmd = kzalloc(sizeof(*dp_cmd), GFP_ATOMIC); + + if (!dp_cmd) + return -ENOMEM; + + memcpy(&dp_cmd->data, rx_tid, sizeof(struct dp_rx_tid)); + dp_cmd->cmd_num = cmd_num; + dp_cmd->handler = cb; + + spin_lock_bh(&dp->reo_cmd_lock); + list_add_tail(&dp_cmd->list, &dp->reo_cmd_list); + spin_unlock_bh(&dp->reo_cmd_lock); + + return 0; +} + +static int +ath11k_dp_tx_get_ring_id_type(struct ath11k_base *ab, + int mac_id, u32 ring_id, + enum hal_ring_type ring_type, + enum htt_srng_ring_type *htt_ring_type, + enum htt_srng_ring_id *htt_ring_id) +{ + int lmac_ring_id_offset = 0; + int ret = 0; + + switch (ring_type) { + case HAL_RXDMA_BUF: + lmac_ring_id_offset = mac_id * HAL_SRNG_RINGS_PER_LMAC; + if (!(ring_id == (HAL_SRNG_RING_ID_WMAC1_SW2RXDMA0_BUF + + lmac_ring_id_offset) || + ring_id == (HAL_SRNG_RING_ID_WMAC1_SW2RXDMA1_BUF + + lmac_ring_id_offset))) { + ret = -EINVAL; + } + *htt_ring_id = HTT_RXDMA_HOST_BUF_RING; + *htt_ring_type = HTT_SW_TO_HW_RING; + break; + case HAL_RXDMA_DST: + *htt_ring_id = HTT_RXDMA_NON_MONITOR_DEST_RING; + *htt_ring_type = HTT_HW_TO_SW_RING; + break; + case HAL_RXDMA_MONITOR_BUF: + *htt_ring_id = HTT_RXDMA_MONITOR_BUF_RING; + *htt_ring_type = HTT_SW_TO_HW_RING; + break; + case HAL_RXDMA_MONITOR_STATUS: + *htt_ring_id = HTT_RXDMA_MONITOR_STATUS_RING; + *htt_ring_type = HTT_SW_TO_HW_RING; + break; + case HAL_RXDMA_MONITOR_DST: + *htt_ring_id = HTT_RXDMA_MONITOR_DEST_RING; + *htt_ring_type = HTT_HW_TO_SW_RING; + break; + case HAL_RXDMA_MONITOR_DESC: + *htt_ring_id = HTT_RXDMA_MONITOR_DESC_RING; + *htt_ring_type = HTT_SW_TO_HW_RING; + break; + default: + ath11k_warn(ab, "Unsupported ring type in DP :%d\n", ring_type); + ret = -EINVAL; + } + return ret; +} + +int ath11k_dp_tx_htt_srng_setup(struct ath11k_base *ab, u32 ring_id, + int mac_id, enum hal_ring_type ring_type) +{ + struct htt_srng_setup_cmd *cmd; + struct hal_srng *srng = &ab->hal.srng_list[ring_id]; + struct hal_srng_params params; + struct sk_buff *skb; + u32 ring_entry_sz; + int len = sizeof(*cmd); + dma_addr_t hp_addr, tp_addr; + enum htt_srng_ring_type htt_ring_type; + enum htt_srng_ring_id htt_ring_id; + int ret = 0; + + skb = ath11k_htc_alloc_skb(ab, len); + if (!skb) + return -ENOMEM; + + memset(¶ms, 0, sizeof(params)); + ath11k_hal_srng_get_params(ab, srng, ¶ms); + + hp_addr = ath11k_hal_srng_get_hp_addr(ab, srng); + tp_addr = ath11k_hal_srng_get_tp_addr(ab, srng); + + if (ath11k_dp_tx_get_ring_id_type(ab, mac_id, ring_id, + ring_type, &htt_ring_type, + &htt_ring_id)) + goto err_free; + + skb_put(skb, len); + cmd = (struct htt_srng_setup_cmd *)skb->data; + cmd->info0 = FIELD_PREP(HTT_SRNG_SETUP_CMD_INFO0_MSG_TYPE, + HTT_H2T_MSG_TYPE_SRING_SETUP); + if (htt_ring_type == HTT_SW_TO_HW_RING || + htt_ring_type == HTT_HW_TO_SW_RING) + cmd->info0 |= FIELD_PREP(HTT_SRNG_SETUP_CMD_INFO0_PDEV_ID, + DP_SW2HW_MACID(mac_id)); + else + cmd->info0 |= FIELD_PREP(HTT_SRNG_SETUP_CMD_INFO0_PDEV_ID, + mac_id); + cmd->info0 |= FIELD_PREP(HTT_SRNG_SETUP_CMD_INFO0_RING_TYPE, + htt_ring_type); + cmd->info0 |= FIELD_PREP(HTT_SRNG_SETUP_CMD_INFO0_RING_ID, htt_ring_id); + + cmd->ring_base_addr_lo = params.ring_base_paddr & + HAL_ADDR_LSB_REG_MASK; + + cmd->ring_base_addr_hi = (u64)params.ring_base_paddr >> + HAL_ADDR_MSB_REG_SHIFT; + + ret = ath11k_hal_srng_get_entrysize(ring_type); + if (ret < 0) { + ret = -EINVAL; + goto err_free; + } + + ring_entry_sz = ret; + + ring_entry_sz >>= 2; + cmd->info1 = FIELD_PREP(HTT_SRNG_SETUP_CMD_INFO1_RING_ENTRY_SIZE, + ring_entry_sz); + cmd->info1 |= FIELD_PREP(HTT_SRNG_SETUP_CMD_INFO1_RING_SIZE, + params.num_entries * ring_entry_sz); + cmd->info1 |= FIELD_PREP(HTT_SRNG_SETUP_CMD_INFO1_RING_FLAGS_MSI_SWAP, + !!(params.flags & HAL_SRNG_FLAGS_MSI_SWAP)); + cmd->info1 |= FIELD_PREP( + HTT_SRNG_SETUP_CMD_INFO1_RING_FLAGS_TLV_SWAP, + !!(params.flags & HAL_SRNG_FLAGS_DATA_TLV_SWAP)); + cmd->info1 |= FIELD_PREP( + HTT_SRNG_SETUP_CMD_INFO1_RING_FLAGS_HOST_FW_SWAP, + !!(params.flags & HAL_SRNG_FLAGS_RING_PTR_SWAP)); + if (htt_ring_type == HTT_SW_TO_HW_RING) + cmd->info1 |= HTT_SRNG_SETUP_CMD_INFO1_RING_LOOP_CNT_DIS; + + cmd->ring_head_off32_remote_addr_lo = hp_addr & HAL_ADDR_LSB_REG_MASK; + cmd->ring_head_off32_remote_addr_hi = (u64)hp_addr >> + HAL_ADDR_MSB_REG_SHIFT; + + cmd->ring_tail_off32_remote_addr_lo = tp_addr & HAL_ADDR_LSB_REG_MASK; + cmd->ring_tail_off32_remote_addr_hi = (u64)tp_addr >> + HAL_ADDR_MSB_REG_SHIFT; + + cmd->ring_msi_addr_lo = 0; + cmd->ring_msi_addr_hi = 0; + cmd->msi_data = 0; + + cmd->intr_info = FIELD_PREP( + HTT_SRNG_SETUP_CMD_INTR_INFO_BATCH_COUNTER_THRESH, + params.intr_batch_cntr_thres_entries * ring_entry_sz); + cmd->intr_info |= FIELD_PREP( + HTT_SRNG_SETUP_CMD_INTR_INFO_INTR_TIMER_THRESH, + params.intr_timer_thres_us >> 3); + + cmd->info2 = 0; + if (params.flags & HAL_SRNG_FLAGS_LOW_THRESH_INTR_EN) { + cmd->info2 = FIELD_PREP( + HTT_SRNG_SETUP_CMD_INFO2_INTR_LOW_THRESH, + params.low_threshold); + } + + ret = ath11k_htc_send(&ab->htc, ab->dp.eid, skb); + if (ret) + goto err_free; + + return 0; + +err_free: + dev_kfree_skb_any(skb); + + return ret; +} + +#define HTT_TARGET_VERSION_TIMEOUT_HZ (3 * HZ) + +int ath11k_dp_tx_htt_h2t_ver_req_msg(struct ath11k_base *ab) +{ + struct ath11k_dp *dp = &ab->dp; + struct sk_buff *skb; + struct htt_ver_req_cmd *cmd; + int len = sizeof(*cmd); + int ret; + + init_completion(&dp->htt_tgt_version_received); + + skb = ath11k_htc_alloc_skb(ab, len); + if (!skb) + return -ENOMEM; + + skb_put(skb, len); + cmd = (struct htt_ver_req_cmd *)skb->data; + cmd->ver_reg_info = FIELD_PREP(HTT_VER_REQ_INFO_MSG_ID, + HTT_H2T_MSG_TYPE_VERSION_REQ); + + ret = ath11k_htc_send(&ab->htc, dp->eid, skb); + if (ret) { + dev_kfree_skb_any(skb); + return ret; + } + + ret = wait_for_completion_timeout(&dp->htt_tgt_version_received, + HTT_TARGET_VERSION_TIMEOUT_HZ); + if (ret == 0) { + ath11k_warn(ab, "htt target version request timed out\n"); + return -ETIMEDOUT; + } + + if (dp->htt_tgt_ver_major != HTT_TARGET_VERSION_MAJOR) { + ath11k_err(ab, "unsupported htt major version %d supported version is %d\n", + dp->htt_tgt_ver_major, HTT_TARGET_VERSION_MAJOR); + return -ENOTSUPP; + } + + return 0; +} + +int ath11k_dp_tx_htt_h2t_ppdu_stats_req(struct ath11k *ar, u32 mask) +{ + struct ath11k_base *ab = ar->ab; + struct ath11k_dp *dp = &ab->dp; + struct sk_buff *skb; + struct htt_ppdu_stats_cfg_cmd *cmd; + int len = sizeof(*cmd); + u8 pdev_mask; + int ret; + + skb = ath11k_htc_alloc_skb(ab, len); + if (!skb) + return -ENOMEM; + + skb_put(skb, len); + cmd = (struct htt_ppdu_stats_cfg_cmd *)skb->data; + cmd->msg = FIELD_PREP(HTT_PPDU_STATS_CFG_MSG_TYPE, + HTT_H2T_MSG_TYPE_PPDU_STATS_CFG); + + pdev_mask = 1 << (ar->pdev_idx); + cmd->msg |= FIELD_PREP(HTT_PPDU_STATS_CFG_PDEV_ID, pdev_mask); + cmd->msg |= FIELD_PREP(HTT_PPDU_STATS_CFG_TLV_TYPE_BITMASK, mask); + + ret = ath11k_htc_send(&ab->htc, dp->eid, skb); + if (ret) { + dev_kfree_skb_any(skb); + return ret; + } + + return 0; +} + +int ath11k_dp_tx_htt_rx_filter_setup(struct ath11k_base *ab, u32 ring_id, + int mac_id, enum hal_ring_type ring_type, + int rx_buf_size, + struct htt_rx_ring_tlv_filter *tlv_filter) +{ + struct htt_rx_ring_selection_cfg_cmd *cmd; + struct hal_srng *srng = &ab->hal.srng_list[ring_id]; + struct hal_srng_params params; + struct sk_buff *skb; + int len = sizeof(*cmd); + enum htt_srng_ring_type htt_ring_type; + enum htt_srng_ring_id htt_ring_id; + int ret = 0; + + skb = ath11k_htc_alloc_skb(ab, len); + if (!skb) + return -ENOMEM; + + memset(¶ms, 0, sizeof(params)); + ath11k_hal_srng_get_params(ab, srng, ¶ms); + + if (ath11k_dp_tx_get_ring_id_type(ab, mac_id, ring_id, + ring_type, &htt_ring_type, + &htt_ring_id)) + goto err_free; + + skb_put(skb, len); + cmd = (struct htt_rx_ring_selection_cfg_cmd *)skb->data; + cmd->info0 = FIELD_PREP(HTT_RX_RING_SELECTION_CFG_CMD_INFO0_MSG_TYPE, + HTT_H2T_MSG_TYPE_RX_RING_SELECTION_CFG); + if (htt_ring_type == HTT_SW_TO_HW_RING || + htt_ring_type == HTT_HW_TO_SW_RING) + cmd->info0 |= + FIELD_PREP(HTT_RX_RING_SELECTION_CFG_CMD_INFO0_PDEV_ID, + DP_SW2HW_MACID(mac_id)); + else + cmd->info0 |= + FIELD_PREP(HTT_RX_RING_SELECTION_CFG_CMD_INFO0_PDEV_ID, + mac_id); + cmd->info0 |= FIELD_PREP(HTT_RX_RING_SELECTION_CFG_CMD_INFO0_RING_ID, + htt_ring_id); + cmd->info0 |= FIELD_PREP(HTT_RX_RING_SELECTION_CFG_CMD_INFO0_SS, + !!(params.flags & HAL_SRNG_FLAGS_MSI_SWAP)); + cmd->info0 |= FIELD_PREP(HTT_RX_RING_SELECTION_CFG_CMD_INFO0_PS, + !!(params.flags & HAL_SRNG_FLAGS_DATA_TLV_SWAP)); + + cmd->info1 = FIELD_PREP(HTT_RX_RING_SELECTION_CFG_CMD_INFO1_BUF_SIZE, + rx_buf_size); + cmd->pkt_type_en_flags0 = tlv_filter->pkt_filter_flags0; + cmd->pkt_type_en_flags1 = tlv_filter->pkt_filter_flags1; + cmd->pkt_type_en_flags2 = tlv_filter->pkt_filter_flags2; + cmd->pkt_type_en_flags3 = tlv_filter->pkt_filter_flags3; + cmd->rx_filter_tlv = tlv_filter->rx_filter; + + ret = ath11k_htc_send(&ab->htc, ab->dp.eid, skb); + if (ret) + goto err_free; + + return 0; + +err_free: + dev_kfree_skb_any(skb); + + return ret; +} + +int +ath11k_dp_tx_htt_h2t_ext_stats_req(struct ath11k *ar, u8 type, + struct htt_ext_stats_cfg_params *cfg_params, + u64 cookie) +{ + struct ath11k_base *ab = ar->ab; + struct ath11k_dp *dp = &ab->dp; + struct sk_buff *skb; + struct htt_ext_stats_cfg_cmd *cmd; + int len = sizeof(*cmd); + int ret; + + skb = ath11k_htc_alloc_skb(ab, len); + if (!skb) + return -ENOMEM; + + skb_put(skb, len); + + cmd = (struct htt_ext_stats_cfg_cmd *)skb->data; + memset(cmd, 0, sizeof(*cmd)); + cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_EXT_STATS_CFG; + + cmd->hdr.pdev_mask = 1 << ar->pdev->pdev_id; + + cmd->hdr.stats_type = type; + cmd->cfg_param0 = cfg_params->cfg0; + cmd->cfg_param1 = cfg_params->cfg1; + cmd->cfg_param2 = cfg_params->cfg2; + cmd->cfg_param3 = cfg_params->cfg3; + cmd->cookie_lsb = lower_32_bits(cookie); + cmd->cookie_msb = upper_32_bits(cookie); + + ret = ath11k_htc_send(&ab->htc, dp->eid, skb); + if (ret) { + ath11k_warn(ab, "failed to send htt type stats request: %d", + ret); + dev_kfree_skb_any(skb); + return ret; + } + + return 0; +} + +int ath11k_dp_tx_htt_monitor_mode_ring_config(struct ath11k *ar, bool reset) +{ + struct ath11k_pdev_dp *dp = &ar->dp; + struct htt_rx_ring_tlv_filter tlv_filter = {0}; + int ret = 0, ring_id = 0; + + ring_id = dp->rxdma_mon_buf_ring.refill_buf_ring.ring_id; + + if (!reset) { + tlv_filter.rx_filter = HTT_RX_MON_FILTER_TLV_FLAGS_MON_BUF_RING; + tlv_filter.pkt_filter_flags0 = + HTT_RX_MON_FP_MGMT_FILTER_FLAGS0 | + HTT_RX_MON_MO_MGMT_FILTER_FLAGS0; + tlv_filter.pkt_filter_flags1 = + HTT_RX_MON_FP_MGMT_FILTER_FLAGS1 | + HTT_RX_MON_MO_MGMT_FILTER_FLAGS1; + tlv_filter.pkt_filter_flags2 = + HTT_RX_MON_FP_CTRL_FILTER_FLASG2 | + HTT_RX_MON_MO_CTRL_FILTER_FLASG2; + tlv_filter.pkt_filter_flags3 = + HTT_RX_MON_FP_CTRL_FILTER_FLASG3 | + HTT_RX_MON_MO_CTRL_FILTER_FLASG3 | + HTT_RX_MON_FP_DATA_FILTER_FLASG3 | + HTT_RX_MON_MO_DATA_FILTER_FLASG3; + } + + ret = ath11k_dp_tx_htt_rx_filter_setup(ar->ab, ring_id, dp->mac_id, + HAL_RXDMA_MONITOR_BUF, + DP_RXDMA_REFILL_RING_SIZE, + &tlv_filter); + if (ret) + return ret; + + ring_id = dp->rx_mon_status_refill_ring.refill_buf_ring.ring_id; + if (!reset) + tlv_filter.rx_filter = + HTT_RX_MON_FILTER_TLV_FLAGS_MON_STATUS_RING; + else + tlv_filter = ath11k_mac_mon_status_filter_default; + + ret = ath11k_dp_tx_htt_rx_filter_setup(ar->ab, ring_id, dp->mac_id, + HAL_RXDMA_MONITOR_STATUS, + DP_RXDMA_REFILL_RING_SIZE, + &tlv_filter); + return ret; +} |