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wifi: ath12k: Move arch specific tx APIs to wifi7 directory

Browse Source 
Move arch specific TX data path to wifi7 directory as part of Next
Generation (NG) Driver Framework.

Architecture specific APIs:
ath12k_dp_tx_htt_tx_complete_buf
ath12k_dp_tx_process_htt_tx_complete
ath12k_dp_tx_update_txcompl
ath12k_dp_tx_complete_msdu
ath12k_dp_tx_status_parse
ath12k_dp_tx_completion_handler

The moved APIs will be a part of dp_tx.c file inside wifi7 directory.
wifi7/dp_tx.c file will continue to be part of ath12k.ko temporarily
until the corresponding infra for movement to ath12k_wifi7.ko arrives
in upcoming patches.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Pavankumar Nandeshwar <quic_pnandesh@quicinc.com>
Signed-off-by: Ripan Deuri <quic_rdeuri@quicinc.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Reviewed-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Link: https://patch.msgid.link/20250828173553.3341351-16-quic_rdeuri@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
This commit is contained in:
Pavankumar Nandeshwar 2025-08-28 23:05:48 +05:30 committed by Jeff Johnson
parent 52c555680b
commit 8527d81ee6
7 changed files with 591 additions and 552 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/ath/ath12k/Makefile
View File

@ -25,6 +25,7 @@ ath12k-$(CONFIG_ATH12K_AHB) += ahb.o
ath12k-y += wifi7/hal_tx.o \
wifi7/hal_rx.o \
wifi7/dp_rx.o \
wifi7/dp_tx.o \
wifi7/dp.o
obj-$(CONFIG_ATH12K) += wifi7/

564
drivers/net/wireless/ath/ath12k/dp_tx.c
View File

@ -1,7 +1,7 @@
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2021-2025 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
*/
#include "core.h"
@ -12,7 +12,7 @@
#include "peer.h"
#include "mac.h"
static enum hal_tcl_encap_type
enum hal_tcl_encap_type
ath12k_dp_tx_get_encap_type(struct ath12k_base *ab, struct sk_buff *skb)
{
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
@ -26,7 +26,7 @@ ath12k_dp_tx_get_encap_type(struct ath12k_base *ab, struct sk_buff *skb)
return HAL_TCL_ENCAP_TYPE_NATIVE_WIFI;
}
static void ath12k_dp_tx_encap_nwifi(struct sk_buff *skb)
void ath12k_dp_tx_encap_nwifi(struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (void *)skb->data;
u8 *qos_ctl;
@ -43,7 +43,7 @@ static void ath12k_dp_tx_encap_nwifi(struct sk_buff *skb)
hdr->frame_control &= ~__cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
}
static u8 ath12k_dp_tx_get_tid(struct sk_buff *skb)
u8 ath12k_dp_tx_get_tid(struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (void *)skb->data;
struct ath12k_skb_cb *cb = ATH12K_SKB_CB(skb);
@ -78,9 +78,9 @@ enum hal_encrypt_type ath12k_dp_tx_get_encrypt_type(u32 cipher)
}
}
static void ath12k_dp_tx_release_txbuf(struct ath12k_dp *dp,
struct ath12k_tx_desc_info *tx_desc,
u8 pool_id)
void ath12k_dp_tx_release_txbuf(struct ath12k_dp *dp,
struct ath12k_tx_desc_info *tx_desc,
u8 pool_id)
{
spin_lock_bh(&dp->tx_desc_lock[pool_id]);
tx_desc->skb_ext_desc = NULL;
@ -88,8 +88,8 @@ static void ath12k_dp_tx_release_txbuf(struct ath12k_dp *dp,
spin_unlock_bh(&dp->tx_desc_lock[pool_id]);
}
static struct ath12k_tx_desc_info *ath12k_dp_tx_assign_buffer(struct ath12k_dp *dp,
u8 pool_id)
struct ath12k_tx_desc_info *ath12k_dp_tx_assign_buffer(struct ath12k_dp *dp,
u8 pool_id)
{
struct ath12k_tx_desc_info *desc;
@ -129,7 +129,7 @@ static void ath12k_hal_tx_cmd_ext_desc_setup(struct ath12k_base *ab,
#define HTT_META_DATA_ALIGNMENT 0x8
static void *ath12k_dp_metadata_align_skb(struct sk_buff *skb, u8 tail_len)
void *ath12k_dp_metadata_align_skb(struct sk_buff *skb, u8 tail_len)
{
struct sk_buff *tail;
void *metadata;
@ -182,8 +182,8 @@ static void ath12k_dp_tx_move_payload(struct sk_buff *skb,
}
}
static int ath12k_dp_tx_align_payload(struct ath12k_base *ab,
struct sk_buff **pskb)
int ath12k_dp_tx_align_payload(struct ath12k_base *ab,
struct sk_buff **pskb)
{
u32 iova_mask = ab->hw_params->iova_mask;
unsigned long offset, delta1, delta2;
@ -539,9 +539,9 @@ int ath12k_dp_tx(struct ath12k *ar, struct ath12k_link_vif *arvif,
return ret;
}
static void ath12k_dp_tx_free_txbuf(struct ath12k_base *ab,
struct dp_tx_ring *tx_ring,
struct ath12k_tx_desc_params *desc_params)
void ath12k_dp_tx_free_txbuf(struct ath12k_base *ab,
struct dp_tx_ring *tx_ring,
struct ath12k_tx_desc_params *desc_params)
{
struct ath12k *ar;
struct sk_buff *msdu = desc_params->skb;
@ -564,540 +564,6 @@ static void ath12k_dp_tx_free_txbuf(struct ath12k_base *ab,
wake_up(&ar->dp.tx_empty_waitq);
}
static void
ath12k_dp_tx_htt_tx_complete_buf(struct ath12k_base *ab,
struct ath12k_tx_desc_params *desc_params,
struct dp_tx_ring *tx_ring,
struct ath12k_dp_htt_wbm_tx_status *ts,
u16 peer_id)
{
struct ieee80211_tx_info *info;
struct ath12k_link_vif *arvif;
struct ath12k_skb_cb *skb_cb;
struct ieee80211_vif *vif;
struct ath12k_vif *ahvif;
struct ath12k *ar;
struct sk_buff *msdu = desc_params->skb;
s32 noise_floor;
struct ieee80211_tx_status status = {};
struct ath12k_peer *peer;
skb_cb = ATH12K_SKB_CB(msdu);
info = IEEE80211_SKB_CB(msdu);
ar = skb_cb->ar;
ab->device_stats.tx_completed[tx_ring->tcl_data_ring_id]++;
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);
if (skb_cb->paddr_ext_desc) {
dma_unmap_single(ab->dev, skb_cb->paddr_ext_desc,
desc_params->skb_ext_desc->len, DMA_TO_DEVICE);
dev_kfree_skb_any(desc_params->skb_ext_desc);
}
vif = skb_cb->vif;
if (vif) {
ahvif = ath12k_vif_to_ahvif(vif);
rcu_read_lock();
arvif = rcu_dereference(ahvif->link[skb_cb->link_id]);
if (arvif) {
spin_lock_bh(&arvif->link_stats_lock);
arvif->link_stats.tx_completed++;
spin_unlock_bh(&arvif->link_stats_lock);
}
rcu_read_unlock();
}
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 = ts->ack_rssi;
if (!test_bit(WMI_TLV_SERVICE_HW_DB2DBM_CONVERSION_SUPPORT,
ab->wmi_ab.svc_map)) {
spin_lock_bh(&ar->data_lock);
noise_floor = ath12k_pdev_get_noise_floor(ar);
spin_unlock_bh(&ar->data_lock);
info->status.ack_signal += noise_floor;
}
info->status.flags = IEEE80211_TX_STATUS_ACK_SIGNAL_VALID;
} else {
info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
}
}
rcu_read_lock();
spin_lock_bh(&ab->base_lock);
peer = ath12k_peer_find_by_id(ab, peer_id);
if (!peer || !peer->sta) {
ath12k_dbg(ab, ATH12K_DBG_DATA,
"dp_tx: failed to find the peer with peer_id %d\n", peer_id);
spin_unlock_bh(&ab->base_lock);
ieee80211_free_txskb(ath12k_ar_to_hw(ar), msdu);
goto exit;
} else {
status.sta = peer->sta;
}
spin_unlock_bh(&ab->base_lock);
status.info = info;
status.skb = msdu;
ieee80211_tx_status_ext(ath12k_ar_to_hw(ar), &status);
exit:
rcu_read_unlock();
}
static void
ath12k_dp_tx_process_htt_tx_complete(struct ath12k_base *ab, void *desc,
struct dp_tx_ring *tx_ring,
struct ath12k_tx_desc_params *desc_params)
{
struct htt_tx_wbm_completion *status_desc;
struct ath12k_dp_htt_wbm_tx_status ts = {};
enum hal_wbm_htt_tx_comp_status wbm_status;
u16 peer_id;
status_desc = desc;
wbm_status = le32_get_bits(status_desc->info0,
HTT_TX_WBM_COMP_INFO0_STATUS);
ab->device_stats.fw_tx_status[wbm_status]++;
switch (wbm_status) {
case HAL_WBM_REL_HTT_TX_COMP_STATUS_OK:
ts.acked = (wbm_status == HAL_WBM_REL_HTT_TX_COMP_STATUS_OK);
ts.ack_rssi = le32_get_bits(status_desc->info2,
HTT_TX_WBM_COMP_INFO2_ACK_RSSI);
peer_id = le32_get_bits(((struct hal_wbm_completion_ring_tx *)desc)->
info3, HAL_WBM_COMPL_TX_INFO3_PEER_ID);
ath12k_dp_tx_htt_tx_complete_buf(ab, desc_params, tx_ring, &ts, peer_id);
break;
case HAL_WBM_REL_HTT_TX_COMP_STATUS_DROP:
case HAL_WBM_REL_HTT_TX_COMP_STATUS_TTL:
case HAL_WBM_REL_HTT_TX_COMP_STATUS_REINJ:
case HAL_WBM_REL_HTT_TX_COMP_STATUS_INSPECT:
case HAL_WBM_REL_HTT_TX_COMP_STATUS_VDEVID_MISMATCH:
ath12k_dp_tx_free_txbuf(ab, tx_ring, desc_params);
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:
ath12k_warn(ab, "Unknown htt wbm tx status %d\n", wbm_status);
break;
}
}
static void ath12k_dp_tx_update_txcompl(struct ath12k *ar, struct hal_tx_status *ts)
{
struct ath12k_base *ab = ar->ab;
struct ath12k_peer *peer;
struct ieee80211_sta *sta;
struct ath12k_sta *ahsta;
struct ath12k_link_sta *arsta;
struct rate_info txrate = {};
u16 rate, ru_tones;
u8 rate_idx = 0;
int ret;
spin_lock_bh(&ab->base_lock);
peer = ath12k_peer_find_by_id(ab, ts->peer_id);
if (!peer || !peer->sta) {
ath12k_dbg(ab, ATH12K_DBG_DP_TX,
"failed to find the peer by id %u\n", ts->peer_id);
spin_unlock_bh(&ab->base_lock);
return;
}
sta = peer->sta;
ahsta = ath12k_sta_to_ahsta(sta);
arsta = &ahsta->deflink;
/* This is to prefer choose the real NSS value arsta->last_txrate.nss,
* if it is invalid, then choose the NSS value while assoc.
*/
if (arsta->last_txrate.nss)
txrate.nss = arsta->last_txrate.nss;
else
txrate.nss = arsta->peer_nss;
spin_unlock_bh(&ab->base_lock);
switch (ts->pkt_type) {
case HAL_TX_RATE_STATS_PKT_TYPE_11A:
case HAL_TX_RATE_STATS_PKT_TYPE_11B:
ret = ath12k_mac_hw_ratecode_to_legacy_rate(ts->mcs,
ts->pkt_type,
&rate_idx,
&rate);
if (ret < 0) {
ath12k_warn(ab, "Invalid tx legacy rate %d\n", ret);
return;
}
txrate.legacy = rate;
break;
case HAL_TX_RATE_STATS_PKT_TYPE_11N:
if (ts->mcs > ATH12K_HT_MCS_MAX) {
ath12k_warn(ab, "Invalid HT mcs index %d\n", ts->mcs);
return;
}
if (txrate.nss != 0)
txrate.mcs = ts->mcs + 8 * (txrate.nss - 1);
txrate.flags = RATE_INFO_FLAGS_MCS;
if (ts->sgi)
txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
break;
case HAL_TX_RATE_STATS_PKT_TYPE_11AC:
if (ts->mcs > ATH12K_VHT_MCS_MAX) {
ath12k_warn(ab, "Invalid VHT mcs index %d\n", ts->mcs);
return;
}
txrate.mcs = ts->mcs;
txrate.flags = RATE_INFO_FLAGS_VHT_MCS;
if (ts->sgi)
txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
break;
case HAL_TX_RATE_STATS_PKT_TYPE_11AX:
if (ts->mcs > ATH12K_HE_MCS_MAX) {
ath12k_warn(ab, "Invalid HE mcs index %d\n", ts->mcs);
return;
}
txrate.mcs = ts->mcs;
txrate.flags = RATE_INFO_FLAGS_HE_MCS;
txrate.he_gi = ath12k_he_gi_to_nl80211_he_gi(ts->sgi);
break;
case HAL_TX_RATE_STATS_PKT_TYPE_11BE:
if (ts->mcs > ATH12K_EHT_MCS_MAX) {
ath12k_warn(ab, "Invalid EHT mcs index %d\n", ts->mcs);
return;
}
txrate.mcs = ts->mcs;
txrate.flags = RATE_INFO_FLAGS_EHT_MCS;
txrate.eht_gi = ath12k_mac_eht_gi_to_nl80211_eht_gi(ts->sgi);
break;
default:
ath12k_warn(ab, "Invalid tx pkt type: %d\n", ts->pkt_type);
return;
}
txrate.bw = ath12k_mac_bw_to_mac80211_bw(ts->bw);
if (ts->ofdma && ts->pkt_type == HAL_TX_RATE_STATS_PKT_TYPE_11AX) {
txrate.bw = RATE_INFO_BW_HE_RU;
ru_tones = ath12k_mac_he_convert_tones_to_ru_tones(ts->tones);
txrate.he_ru_alloc =
ath12k_he_ru_tones_to_nl80211_he_ru_alloc(ru_tones);
}
if (ts->ofdma && ts->pkt_type == HAL_TX_RATE_STATS_PKT_TYPE_11BE) {
txrate.bw = RATE_INFO_BW_EHT_RU;
txrate.eht_ru_alloc =
ath12k_mac_eht_ru_tones_to_nl80211_eht_ru_alloc(ts->tones);
}
spin_lock_bh(&ab->base_lock);
arsta->txrate = txrate;
spin_unlock_bh(&ab->base_lock);
}
static void ath12k_dp_tx_complete_msdu(struct ath12k *ar,
struct ath12k_tx_desc_params *desc_params,
struct hal_tx_status *ts,
int ring)
{
struct ath12k_base *ab = ar->ab;
struct ath12k_hw *ah = ar->ah;
struct ieee80211_tx_info *info;
struct ath12k_link_vif *arvif;
struct ath12k_skb_cb *skb_cb;
struct ieee80211_vif *vif;
struct ath12k_vif *ahvif;
struct sk_buff *msdu = desc_params->skb;
s32 noise_floor;
struct ieee80211_tx_status status = {};
struct ieee80211_rate_status status_rate = {};
struct ath12k_peer *peer;
struct ath12k_link_sta *arsta;
struct ath12k_sta *ahsta;
struct rate_info rate;
if (WARN_ON_ONCE(ts->buf_rel_source != HAL_WBM_REL_SRC_MODULE_TQM)) {
/* Must not happen */
return;
}
skb_cb = ATH12K_SKB_CB(msdu);
ab->device_stats.tx_completed[ring]++;
dma_unmap_single(ab->dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
if (skb_cb->paddr_ext_desc) {
dma_unmap_single(ab->dev, skb_cb->paddr_ext_desc,
desc_params->skb_ext_desc->len, DMA_TO_DEVICE);
dev_kfree_skb_any(desc_params->skb_ext_desc);
}
rcu_read_lock();
if (!rcu_dereference(ab->pdevs_active[ar->pdev_idx])) {
ieee80211_free_txskb(ah->hw, msdu);
goto exit;
}
if (!skb_cb->vif) {
ieee80211_free_txskb(ah->hw, msdu);
goto exit;
}
vif = skb_cb->vif;
if (vif) {
ahvif = ath12k_vif_to_ahvif(vif);
arvif = rcu_dereference(ahvif->link[skb_cb->link_id]);
if (arvif) {
spin_lock_bh(&arvif->link_stats_lock);
arvif->link_stats.tx_completed++;
spin_unlock_bh(&arvif->link_stats_lock);
}
}
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;
switch (ts->status) {
case HAL_WBM_TQM_REL_REASON_FRAME_ACKED:
if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
info->flags |= IEEE80211_TX_STAT_ACK;
info->status.ack_signal = ts->ack_rssi;
if (!test_bit(WMI_TLV_SERVICE_HW_DB2DBM_CONVERSION_SUPPORT,
ab->wmi_ab.svc_map)) {
spin_lock_bh(&ar->data_lock);
noise_floor = ath12k_pdev_get_noise_floor(ar);
spin_unlock_bh(&ar->data_lock);
info->status.ack_signal += noise_floor;
}
info->status.flags = IEEE80211_TX_STATUS_ACK_SIGNAL_VALID;
}
break;
case HAL_WBM_TQM_REL_REASON_CMD_REMOVE_TX:
if (info->flags & IEEE80211_TX_CTL_NO_ACK) {
info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
break;
}
fallthrough;
case HAL_WBM_TQM_REL_REASON_CMD_REMOVE_MPDU:
case HAL_WBM_TQM_REL_REASON_DROP_THRESHOLD:
case HAL_WBM_TQM_REL_REASON_CMD_REMOVE_AGED_FRAMES:
/* The failure status is due to internal firmware tx failure
* hence drop the frame; do not update the status of frame to
* the upper layer
*/
ieee80211_free_txskb(ah->hw, msdu);
goto exit;
default:
ath12k_dbg(ab, ATH12K_DBG_DP_TX, "tx frame is not acked status %d\n",
ts->status);
break;
}
/* 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.
*/
ath12k_dp_tx_update_txcompl(ar, ts);
spin_lock_bh(&ab->base_lock);
peer = ath12k_peer_find_by_id(ab, ts->peer_id);
if (!peer || !peer->sta) {
ath12k_err(ab,
"dp_tx: failed to find the peer with peer_id %d\n",
ts->peer_id);
spin_unlock_bh(&ab->base_lock);
ieee80211_free_txskb(ath12k_ar_to_hw(ar), msdu);
goto exit;
}
ahsta = ath12k_sta_to_ahsta(peer->sta);
arsta = &ahsta->deflink;
spin_unlock_bh(&ab->base_lock);
status.sta = peer->sta;
status.info = info;
status.skb = msdu;
rate = arsta->last_txrate;
status_rate.rate_idx = rate;
status_rate.try_count = 1;
status.rates = &status_rate;
status.n_rates = 1;
ieee80211_tx_status_ext(ath12k_ar_to_hw(ar), &status);
exit:
rcu_read_unlock();
}
static void ath12k_dp_tx_status_parse(struct ath12k_base *ab,
struct hal_wbm_completion_ring_tx *desc,
struct hal_tx_status *ts)
{
u32 info0 = le32_to_cpu(desc->rate_stats.info0);
ts->buf_rel_source =
le32_get_bits(desc->info0, HAL_WBM_COMPL_TX_INFO0_REL_SRC_MODULE);
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 = le32_get_bits(desc->info0,
HAL_WBM_COMPL_TX_INFO0_TQM_RELEASE_REASON);
ts->ppdu_id = le32_get_bits(desc->info1,
HAL_WBM_COMPL_TX_INFO1_TQM_STATUS_NUMBER);
ts->peer_id = le32_get_bits(desc->info3, HAL_WBM_COMPL_TX_INFO3_PEER_ID);
ts->ack_rssi = le32_get_bits(desc->info2,
HAL_WBM_COMPL_TX_INFO2_ACK_FRAME_RSSI);
if (info0 & HAL_TX_RATE_STATS_INFO0_VALID) {
ts->pkt_type = u32_get_bits(info0, HAL_TX_RATE_STATS_INFO0_PKT_TYPE);
ts->mcs = u32_get_bits(info0, HAL_TX_RATE_STATS_INFO0_MCS);
ts->sgi = u32_get_bits(info0, HAL_TX_RATE_STATS_INFO0_SGI);
ts->bw = u32_get_bits(info0, HAL_TX_RATE_STATS_INFO0_BW);
ts->tones = u32_get_bits(info0, HAL_TX_RATE_STATS_INFO0_TONES_IN_RU);
ts->ofdma = u32_get_bits(info0, HAL_TX_RATE_STATS_INFO0_OFDMA_TX);
}
}
void ath12k_dp_tx_completion_handler(struct ath12k_base *ab, int ring_id)
{
struct ath12k *ar;
struct ath12k_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 ath12k_tx_desc_info *tx_desc = NULL;
struct hal_tx_status ts = {};
struct ath12k_tx_desc_params desc_params;
struct dp_tx_ring *tx_ring = &dp->tx_ring[ring_id];
struct hal_wbm_release_ring *desc;
u8 pdev_id;
u64 desc_va;
enum hal_wbm_rel_src_module buf_rel_source;
enum hal_wbm_tqm_rel_reason rel_status;
spin_lock_bh(&status_ring->lock);
ath12k_hal_srng_access_begin(ab, status_ring);
while (ATH12K_TX_COMPL_NEXT(ab, tx_ring->tx_status_head) !=
tx_ring->tx_status_tail) {
desc = ath12k_hal_srng_dst_get_next_entry(ab, status_ring);
if (!desc)
break;
memcpy(&tx_ring->tx_status[tx_ring->tx_status_head],
desc, sizeof(*desc));
tx_ring->tx_status_head =
ATH12K_TX_COMPL_NEXT(ab, tx_ring->tx_status_head);
}
if (ath12k_hal_srng_dst_peek(ab, status_ring) &&
(ATH12K_TX_COMPL_NEXT(ab, tx_ring->tx_status_head) ==
tx_ring->tx_status_tail)) {
/* TODO: Process pending tx_status messages when kfifo_is_full() */
ath12k_warn(ab, "Unable to process some of the tx_status ring desc because status_fifo is full\n");
}
ath12k_hal_srng_access_end(ab, status_ring);
spin_unlock_bh(&status_ring->lock);
while (ATH12K_TX_COMPL_NEXT(ab, tx_ring->tx_status_tail) !=
tx_ring->tx_status_head) {
struct hal_wbm_completion_ring_tx *tx_status;
u32 desc_id;
tx_ring->tx_status_tail =
ATH12K_TX_COMPL_NEXT(ab, tx_ring->tx_status_tail);
tx_status = &tx_ring->tx_status[tx_ring->tx_status_tail];
ath12k_dp_tx_status_parse(ab, tx_status, &ts);
if (le32_get_bits(tx_status->info0, HAL_WBM_COMPL_TX_INFO0_CC_DONE)) {
/* HW done cookie conversion */
desc_va = ((u64)le32_to_cpu(tx_status->buf_va_hi) << 32 |
le32_to_cpu(tx_status->buf_va_lo));
tx_desc = (struct ath12k_tx_desc_info *)((unsigned long)desc_va);
} else {
/* SW does cookie conversion to VA */
desc_id = le32_get_bits(tx_status->buf_va_hi,
BUFFER_ADDR_INFO1_SW_COOKIE);
tx_desc = ath12k_dp_get_tx_desc(ab, desc_id);
}
if (!tx_desc) {
ath12k_warn(ab, "unable to retrieve tx_desc!");
continue;
}
desc_params.mac_id = tx_desc->mac_id;
desc_params.skb = tx_desc->skb;
desc_params.skb_ext_desc = tx_desc->skb_ext_desc;
/* Find the HAL_WBM_RELEASE_INFO0_REL_SRC_MODULE value */
buf_rel_source = le32_get_bits(tx_status->info0,
HAL_WBM_RELEASE_INFO0_REL_SRC_MODULE);
ab->device_stats.tx_wbm_rel_source[buf_rel_source]++;
rel_status = le32_get_bits(tx_status->info0,
HAL_WBM_COMPL_TX_INFO0_TQM_RELEASE_REASON);
ab->device_stats.tqm_rel_reason[rel_status]++;
/* Release descriptor as soon as extracting necessary info
* to reduce contention
*/
ath12k_dp_tx_release_txbuf(dp, tx_desc, tx_desc->pool_id);
if (ts.buf_rel_source == HAL_WBM_REL_SRC_MODULE_FW) {
ath12k_dp_tx_process_htt_tx_complete(ab, (void *)tx_status,
tx_ring, &desc_params);
continue;
}
pdev_id = ath12k_hw_mac_id_to_pdev_id(ab->hw_params, desc_params.mac_id);
ar = ab->pdevs[pdev_id].ar;
if (atomic_dec_and_test(&ar->dp.num_tx_pending))
wake_up(&ar->dp.tx_empty_waitq);
ath12k_dp_tx_complete_msdu(ar, &desc_params, &ts,
tx_ring->tcl_data_ring_id);
}
}
static int
ath12k_dp_tx_get_ring_id_type(struct ath12k_base *ab,
int mac_id, u32 ring_id,

18
drivers/net/wireless/ath/ath12k/dp_tx.h
View File

@ -19,8 +19,6 @@ int ath12k_dp_tx_htt_h2t_ver_req_msg(struct ath12k_base *ab);
int ath12k_dp_tx(struct ath12k *ar, struct ath12k_link_vif *arvif,
struct sk_buff *skb, bool gsn_valid, int mcbc_gsn,
bool is_mcast);
void ath12k_dp_tx_completion_handler(struct ath12k_base *ab, int ring_id);
int ath12k_dp_tx_htt_h2t_ppdu_stats_req(struct ath12k *ar, u32 mask);
int
ath12k_dp_tx_htt_h2t_ext_stats_req(struct ath12k *ar, u8 type,
@ -38,4 +36,20 @@ int ath12k_dp_tx_htt_tx_filter_setup(struct ath12k_base *ab, u32 ring_id,
int tx_buf_size,
struct htt_tx_ring_tlv_filter *htt_tlv_filter);
int ath12k_dp_tx_htt_monitor_mode_ring_config(struct ath12k *ar, bool reset);
enum hal_tcl_encap_type
ath12k_dp_tx_get_encap_type(struct ath12k_base *ab, struct sk_buff *skb);
void ath12k_dp_tx_encap_nwifi(struct sk_buff *skb);
u8 ath12k_dp_tx_get_tid(struct sk_buff *skb);
void *ath12k_dp_metadata_align_skb(struct sk_buff *skb, u8 tail_len);
int ath12k_dp_tx_align_payload(struct ath12k_base *ab,
struct sk_buff **pskb);
void ath12k_dp_tx_release_txbuf(struct ath12k_dp *dp,
struct ath12k_tx_desc_info *tx_desc,
u8 pool_id);
struct ath12k_tx_desc_info *ath12k_dp_tx_assign_buffer(struct ath12k_dp *dp,
u8 pool_id);
void ath12k_dp_tx_free_txbuf(struct ath12k_base *ab,
struct dp_tx_ring *tx_ring,
struct ath12k_tx_desc_params *desc_params);
#endif

3
drivers/net/wireless/ath/ath12k/mac.c
View File

@ -1,7 +1,7 @@
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2021-2025 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
*/
#include <net/mac80211.h>
@ -14,6 +14,7 @@
#include "wmi.h"
#include "hw.h"
#include "dp_tx.h"
#include "wifi7/dp_tx.h"
#include "dp_rx.h"
#include "testmode.h"
#include "peer.h"

1
drivers/net/wireless/ath/ath12k/wifi7/dp.c
View File

@ -10,6 +10,7 @@
#include "../dp_mon.h"
#include "dp_rx.h"
#include "dp.h"
#include "dp_tx.h"
int ath12k_dp_service_srng(struct ath12k_base *ab,
struct ath12k_ext_irq_grp *irq_grp,

545
drivers/net/wireless/ath/ath12k/wifi7/dp_tx.c Normal file
View File

@ -0,0 +1,545 @@
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2019-2021 The Linux Foundation. All rights reserved.
* Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
*/
#include "../core.h"
#include "../debug.h"
#include "../dp_tx.h"
#include "../peer.h"
#include "dp_tx.h"
static void
ath12k_dp_tx_htt_tx_complete_buf(struct ath12k_base *ab,
struct ath12k_tx_desc_params *desc_params,
struct dp_tx_ring *tx_ring,
struct ath12k_dp_htt_wbm_tx_status *ts,
u16 peer_id)
{
struct ieee80211_tx_info *info;
struct ath12k_link_vif *arvif;
struct ath12k_skb_cb *skb_cb;
struct ieee80211_vif *vif;
struct ath12k_vif *ahvif;
struct ath12k *ar;
struct sk_buff *msdu = desc_params->skb;
s32 noise_floor;
struct ieee80211_tx_status status = {};
struct ath12k_peer *peer;
skb_cb = ATH12K_SKB_CB(msdu);
info = IEEE80211_SKB_CB(msdu);
ar = skb_cb->ar;
ab->device_stats.tx_completed[tx_ring->tcl_data_ring_id]++;
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);
if (skb_cb->paddr_ext_desc) {
dma_unmap_single(ab->dev, skb_cb->paddr_ext_desc,
desc_params->skb_ext_desc->len, DMA_TO_DEVICE);
dev_kfree_skb_any(desc_params->skb_ext_desc);
}
vif = skb_cb->vif;
if (vif) {
ahvif = ath12k_vif_to_ahvif(vif);
rcu_read_lock();
arvif = rcu_dereference(ahvif->link[skb_cb->link_id]);
if (arvif) {
spin_lock_bh(&arvif->link_stats_lock);
arvif->link_stats.tx_completed++;
spin_unlock_bh(&arvif->link_stats_lock);
}
rcu_read_unlock();
}
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 = ts->ack_rssi;
if (!test_bit(WMI_TLV_SERVICE_HW_DB2DBM_CONVERSION_SUPPORT,
ab->wmi_ab.svc_map)) {
spin_lock_bh(&ar->data_lock);
noise_floor = ath12k_pdev_get_noise_floor(ar);
spin_unlock_bh(&ar->data_lock);
info->status.ack_signal += noise_floor;
}
info->status.flags = IEEE80211_TX_STATUS_ACK_SIGNAL_VALID;
} else {
info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
}
}
rcu_read_lock();
spin_lock_bh(&ab->base_lock);
peer = ath12k_peer_find_by_id(ab, peer_id);
if (!peer || !peer->sta) {
ath12k_dbg(ab, ATH12K_DBG_DATA,
"dp_tx: failed to find the peer with peer_id %d\n", peer_id);
spin_unlock_bh(&ab->base_lock);
ieee80211_free_txskb(ath12k_ar_to_hw(ar), msdu);
goto exit;
} else {
status.sta = peer->sta;
}
spin_unlock_bh(&ab->base_lock);
status.info = info;
status.skb = msdu;
ieee80211_tx_status_ext(ath12k_ar_to_hw(ar), &status);
exit:
rcu_read_unlock();
}
static void
ath12k_dp_tx_process_htt_tx_complete(struct ath12k_base *ab, void *desc,
struct dp_tx_ring *tx_ring,
struct ath12k_tx_desc_params *desc_params)
{
struct htt_tx_wbm_completion *status_desc;
struct ath12k_dp_htt_wbm_tx_status ts = {};
enum hal_wbm_htt_tx_comp_status wbm_status;
u16 peer_id;
status_desc = desc;
wbm_status = le32_get_bits(status_desc->info0,
HTT_TX_WBM_COMP_INFO0_STATUS);
ab->device_stats.fw_tx_status[wbm_status]++;
switch (wbm_status) {
case HAL_WBM_REL_HTT_TX_COMP_STATUS_OK:
ts.acked = (wbm_status == HAL_WBM_REL_HTT_TX_COMP_STATUS_OK);
ts.ack_rssi = le32_get_bits(status_desc->info2,
HTT_TX_WBM_COMP_INFO2_ACK_RSSI);
peer_id = le32_get_bits(((struct hal_wbm_completion_ring_tx *)desc)->
info3, HAL_WBM_COMPL_TX_INFO3_PEER_ID);
ath12k_dp_tx_htt_tx_complete_buf(ab, desc_params, tx_ring, &ts, peer_id);
break;
case HAL_WBM_REL_HTT_TX_COMP_STATUS_DROP:
case HAL_WBM_REL_HTT_TX_COMP_STATUS_TTL:
case HAL_WBM_REL_HTT_TX_COMP_STATUS_REINJ:
case HAL_WBM_REL_HTT_TX_COMP_STATUS_INSPECT:
case HAL_WBM_REL_HTT_TX_COMP_STATUS_VDEVID_MISMATCH:
ath12k_dp_tx_free_txbuf(ab, tx_ring, desc_params);
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:
ath12k_warn(ab, "Unknown htt wbm tx status %d\n", wbm_status);
break;
}
}
static void ath12k_dp_tx_update_txcompl(struct ath12k *ar, struct hal_tx_status *ts)
{
struct ath12k_base *ab = ar->ab;
struct ath12k_peer *peer;
struct ieee80211_sta *sta;
struct ath12k_sta *ahsta;
struct ath12k_link_sta *arsta;
struct rate_info txrate = {};
u16 rate, ru_tones;
u8 rate_idx = 0;
int ret;
spin_lock_bh(&ab->base_lock);
peer = ath12k_peer_find_by_id(ab, ts->peer_id);
if (!peer || !peer->sta) {
ath12k_dbg(ab, ATH12K_DBG_DP_TX,
"failed to find the peer by id %u\n", ts->peer_id);
spin_unlock_bh(&ab->base_lock);
return;
}
sta = peer->sta;
ahsta = ath12k_sta_to_ahsta(sta);
arsta = &ahsta->deflink;
/* This is to prefer choose the real NSS value arsta->last_txrate.nss,
* if it is invalid, then choose the NSS value while assoc.
*/
if (arsta->last_txrate.nss)
txrate.nss = arsta->last_txrate.nss;
else
txrate.nss = arsta->peer_nss;
spin_unlock_bh(&ab->base_lock);
switch (ts->pkt_type) {
case HAL_TX_RATE_STATS_PKT_TYPE_11A:
case HAL_TX_RATE_STATS_PKT_TYPE_11B:
ret = ath12k_mac_hw_ratecode_to_legacy_rate(ts->mcs,
ts->pkt_type,
&rate_idx,
&rate);
if (ret < 0) {
ath12k_warn(ab, "Invalid tx legacy rate %d\n", ret);
return;
}
txrate.legacy = rate;
break;
case HAL_TX_RATE_STATS_PKT_TYPE_11N:
if (ts->mcs > ATH12K_HT_MCS_MAX) {
ath12k_warn(ab, "Invalid HT mcs index %d\n", ts->mcs);
return;
}
if (txrate.nss != 0)
txrate.mcs = ts->mcs + 8 * (txrate.nss - 1);
txrate.flags = RATE_INFO_FLAGS_MCS;
if (ts->sgi)
txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
break;
case HAL_TX_RATE_STATS_PKT_TYPE_11AC:
if (ts->mcs > ATH12K_VHT_MCS_MAX) {
ath12k_warn(ab, "Invalid VHT mcs index %d\n", ts->mcs);
return;
}
txrate.mcs = ts->mcs;
txrate.flags = RATE_INFO_FLAGS_VHT_MCS;
if (ts->sgi)
txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
break;
case HAL_TX_RATE_STATS_PKT_TYPE_11AX:
if (ts->mcs > ATH12K_HE_MCS_MAX) {
ath12k_warn(ab, "Invalid HE mcs index %d\n", ts->mcs);
return;
}
txrate.mcs = ts->mcs;
txrate.flags = RATE_INFO_FLAGS_HE_MCS;
txrate.he_gi = ath12k_he_gi_to_nl80211_he_gi(ts->sgi);
break;
case HAL_TX_RATE_STATS_PKT_TYPE_11BE:
if (ts->mcs > ATH12K_EHT_MCS_MAX) {
ath12k_warn(ab, "Invalid EHT mcs index %d\n", ts->mcs);
return;
}
txrate.mcs = ts->mcs;
txrate.flags = RATE_INFO_FLAGS_EHT_MCS;
txrate.eht_gi = ath12k_mac_eht_gi_to_nl80211_eht_gi(ts->sgi);
break;
default:
ath12k_warn(ab, "Invalid tx pkt type: %d\n", ts->pkt_type);
return;
}
txrate.bw = ath12k_mac_bw_to_mac80211_bw(ts->bw);
if (ts->ofdma && ts->pkt_type == HAL_TX_RATE_STATS_PKT_TYPE_11AX) {
txrate.bw = RATE_INFO_BW_HE_RU;
ru_tones = ath12k_mac_he_convert_tones_to_ru_tones(ts->tones);
txrate.he_ru_alloc =
ath12k_he_ru_tones_to_nl80211_he_ru_alloc(ru_tones);
}
if (ts->ofdma && ts->pkt_type == HAL_TX_RATE_STATS_PKT_TYPE_11BE) {
txrate.bw = RATE_INFO_BW_EHT_RU;
txrate.eht_ru_alloc =
ath12k_mac_eht_ru_tones_to_nl80211_eht_ru_alloc(ts->tones);
}
spin_lock_bh(&ab->base_lock);
arsta->txrate = txrate;
spin_unlock_bh(&ab->base_lock);
}
static void ath12k_dp_tx_complete_msdu(struct ath12k *ar,
struct ath12k_tx_desc_params *desc_params,
struct hal_tx_status *ts,
int ring)
{
struct ath12k_base *ab = ar->ab;
struct ath12k_hw *ah = ar->ah;
struct ieee80211_tx_info *info;
struct ath12k_link_vif *arvif;
struct ath12k_skb_cb *skb_cb;
struct ieee80211_vif *vif;
struct ath12k_vif *ahvif;
struct sk_buff *msdu = desc_params->skb;
s32 noise_floor;
struct ieee80211_tx_status status = {};
struct ieee80211_rate_status status_rate = {};
struct ath12k_peer *peer;
struct ath12k_link_sta *arsta;
struct ath12k_sta *ahsta;
struct rate_info rate;
if (WARN_ON_ONCE(ts->buf_rel_source != HAL_WBM_REL_SRC_MODULE_TQM)) {
/* Must not happen */
return;
}
skb_cb = ATH12K_SKB_CB(msdu);
ab->device_stats.tx_completed[ring]++;
dma_unmap_single(ab->dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE);
if (skb_cb->paddr_ext_desc) {
dma_unmap_single(ab->dev, skb_cb->paddr_ext_desc,
desc_params->skb_ext_desc->len, DMA_TO_DEVICE);
dev_kfree_skb_any(desc_params->skb_ext_desc);
}
rcu_read_lock();
if (!rcu_dereference(ab->pdevs_active[ar->pdev_idx])) {
ieee80211_free_txskb(ah->hw, msdu);
goto exit;
}
if (!skb_cb->vif) {
ieee80211_free_txskb(ah->hw, msdu);
goto exit;
}
vif = skb_cb->vif;
if (vif) {
ahvif = ath12k_vif_to_ahvif(vif);
arvif = rcu_dereference(ahvif->link[skb_cb->link_id]);
if (arvif) {
spin_lock_bh(&arvif->link_stats_lock);
arvif->link_stats.tx_completed++;
spin_unlock_bh(&arvif->link_stats_lock);
}
}
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;
switch (ts->status) {
case HAL_WBM_TQM_REL_REASON_FRAME_ACKED:
if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
info->flags |= IEEE80211_TX_STAT_ACK;
info->status.ack_signal = ts->ack_rssi;
if (!test_bit(WMI_TLV_SERVICE_HW_DB2DBM_CONVERSION_SUPPORT,
ab->wmi_ab.svc_map)) {
spin_lock_bh(&ar->data_lock);
noise_floor = ath12k_pdev_get_noise_floor(ar);
spin_unlock_bh(&ar->data_lock);
info->status.ack_signal += noise_floor;
}
info->status.flags = IEEE80211_TX_STATUS_ACK_SIGNAL_VALID;
}
break;
case HAL_WBM_TQM_REL_REASON_CMD_REMOVE_TX:
if (info->flags & IEEE80211_TX_CTL_NO_ACK) {
info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
break;
}
fallthrough;
case HAL_WBM_TQM_REL_REASON_CMD_REMOVE_MPDU:
case HAL_WBM_TQM_REL_REASON_DROP_THRESHOLD:
case HAL_WBM_TQM_REL_REASON_CMD_REMOVE_AGED_FRAMES:
/* The failure status is due to internal firmware tx failure
* hence drop the frame; do not update the status of frame to
* the upper layer
*/
ieee80211_free_txskb(ah->hw, msdu);
goto exit;
default:
ath12k_dbg(ab, ATH12K_DBG_DP_TX, "tx frame is not acked status %d\n",
ts->status);
break;
}
/* 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.
*/
ath12k_dp_tx_update_txcompl(ar, ts);
spin_lock_bh(&ab->base_lock);
peer = ath12k_peer_find_by_id(ab, ts->peer_id);
if (!peer || !peer->sta) {
ath12k_err(ab,
"dp_tx: failed to find the peer with peer_id %d\n",
ts->peer_id);
spin_unlock_bh(&ab->base_lock);
ieee80211_free_txskb(ath12k_ar_to_hw(ar), msdu);
goto exit;
}
ahsta = ath12k_sta_to_ahsta(peer->sta);
arsta = &ahsta->deflink;
spin_unlock_bh(&ab->base_lock);
status.sta = peer->sta;
status.info = info;
status.skb = msdu;
rate = arsta->last_txrate;
status_rate.rate_idx = rate;
status_rate.try_count = 1;
status.rates = &status_rate;
status.n_rates = 1;
ieee80211_tx_status_ext(ath12k_ar_to_hw(ar), &status);
exit:
rcu_read_unlock();
}
static void ath12k_dp_tx_status_parse(struct ath12k_base *ab,
struct hal_wbm_completion_ring_tx *desc,
struct hal_tx_status *ts)
{
u32 info0 = le32_to_cpu(desc->rate_stats.info0);
ts->buf_rel_source =
le32_get_bits(desc->info0, HAL_WBM_COMPL_TX_INFO0_REL_SRC_MODULE);
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 = le32_get_bits(desc->info0,
HAL_WBM_COMPL_TX_INFO0_TQM_RELEASE_REASON);
ts->ppdu_id = le32_get_bits(desc->info1,
HAL_WBM_COMPL_TX_INFO1_TQM_STATUS_NUMBER);
ts->peer_id = le32_get_bits(desc->info3, HAL_WBM_COMPL_TX_INFO3_PEER_ID);
ts->ack_rssi = le32_get_bits(desc->info2,
HAL_WBM_COMPL_TX_INFO2_ACK_FRAME_RSSI);
if (info0 & HAL_TX_RATE_STATS_INFO0_VALID) {
ts->pkt_type = u32_get_bits(info0, HAL_TX_RATE_STATS_INFO0_PKT_TYPE);
ts->mcs = u32_get_bits(info0, HAL_TX_RATE_STATS_INFO0_MCS);
ts->sgi = u32_get_bits(info0, HAL_TX_RATE_STATS_INFO0_SGI);
ts->bw = u32_get_bits(info0, HAL_TX_RATE_STATS_INFO0_BW);
ts->tones = u32_get_bits(info0, HAL_TX_RATE_STATS_INFO0_TONES_IN_RU);
ts->ofdma = u32_get_bits(info0, HAL_TX_RATE_STATS_INFO0_OFDMA_TX);
}
}
void ath12k_dp_tx_completion_handler(struct ath12k_base *ab, int ring_id)
{
struct ath12k *ar;
struct ath12k_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 ath12k_tx_desc_info *tx_desc = NULL;
struct hal_tx_status ts = {};
struct ath12k_tx_desc_params desc_params;
struct dp_tx_ring *tx_ring = &dp->tx_ring[ring_id];
struct hal_wbm_release_ring *desc;
u8 pdev_id;
u64 desc_va;
enum hal_wbm_rel_src_module buf_rel_source;
enum hal_wbm_tqm_rel_reason rel_status;
spin_lock_bh(&status_ring->lock);
ath12k_hal_srng_access_begin(ab, status_ring);
while (ATH12K_TX_COMPL_NEXT(ab, tx_ring->tx_status_head) !=
tx_ring->tx_status_tail) {
desc = ath12k_hal_srng_dst_get_next_entry(ab, status_ring);
if (!desc)
break;
memcpy(&tx_ring->tx_status[tx_ring->tx_status_head],
desc, sizeof(*desc));
tx_ring->tx_status_head =
ATH12K_TX_COMPL_NEXT(ab, tx_ring->tx_status_head);
}
if (ath12k_hal_srng_dst_peek(ab, status_ring) &&
(ATH12K_TX_COMPL_NEXT(ab, tx_ring->tx_status_head) ==
tx_ring->tx_status_tail)) {
/* TODO: Process pending tx_status messages when kfifo_is_full() */
ath12k_warn(ab, "Unable to process some of the tx_status ring desc because status_fifo is full\n");
}
ath12k_hal_srng_access_end(ab, status_ring);
spin_unlock_bh(&status_ring->lock);
while (ATH12K_TX_COMPL_NEXT(ab, tx_ring->tx_status_tail) !=
tx_ring->tx_status_head) {
struct hal_wbm_completion_ring_tx *tx_status;
u32 desc_id;
tx_ring->tx_status_tail =
ATH12K_TX_COMPL_NEXT(ab, tx_ring->tx_status_tail);
tx_status = &tx_ring->tx_status[tx_ring->tx_status_tail];
ath12k_dp_tx_status_parse(ab, tx_status, &ts);
if (le32_get_bits(tx_status->info0, HAL_WBM_COMPL_TX_INFO0_CC_DONE)) {
/* HW done cookie conversion */
desc_va = ((u64)le32_to_cpu(tx_status->buf_va_hi) << 32 |
le32_to_cpu(tx_status->buf_va_lo));
tx_desc = (struct ath12k_tx_desc_info *)((unsigned long)desc_va);
} else {
/* SW does cookie conversion to VA */
desc_id = le32_get_bits(tx_status->buf_va_hi,
BUFFER_ADDR_INFO1_SW_COOKIE);
tx_desc = ath12k_dp_get_tx_desc(ab, desc_id);
}
if (!tx_desc) {
ath12k_warn(ab, "unable to retrieve tx_desc!");
continue;
}
desc_params.mac_id = tx_desc->mac_id;
desc_params.skb = tx_desc->skb;
desc_params.skb_ext_desc = tx_desc->skb_ext_desc;
/* Find the HAL_WBM_RELEASE_INFO0_REL_SRC_MODULE value */
buf_rel_source = le32_get_bits(tx_status->info0,
HAL_WBM_RELEASE_INFO0_REL_SRC_MODULE);
ab->device_stats.tx_wbm_rel_source[buf_rel_source]++;
rel_status = le32_get_bits(tx_status->info0,
HAL_WBM_COMPL_TX_INFO0_TQM_RELEASE_REASON);
ab->device_stats.tqm_rel_reason[rel_status]++;
/* Release descriptor as soon as extracting necessary info
* to reduce contention
*/
ath12k_dp_tx_release_txbuf(dp, tx_desc, tx_desc->pool_id);
if (ts.buf_rel_source == HAL_WBM_REL_SRC_MODULE_FW) {
ath12k_dp_tx_process_htt_tx_complete(ab, (void *)tx_status,
tx_ring, &desc_params);
continue;
}
pdev_id = ath12k_hw_mac_id_to_pdev_id(ab->hw_params, desc_params.mac_id);
ar = ab->pdevs[pdev_id].ar;
if (atomic_dec_and_test(&ar->dp.num_tx_pending))
wake_up(&ar->dp.tx_empty_waitq);
ath12k_dp_tx_complete_msdu(ar, &desc_params, &ts,
tx_ring->tcl_data_ring_id);
}
}

11
drivers/net/wireless/ath/ath12k/wifi7/dp_tx.h Normal file
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@ -0,0 +1,11 @@
/* SPDX-License-Identifier: BSD-3-Clause-Clear */
/*
* Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
* Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
*/
#ifndef ATH12K_DP_TX_WIFI7_H
#define ATH12K_DP_TX_WIFI7_H
void ath12k_dp_tx_completion_handler(struct ath12k_base *ab, int ring_id);
#endif