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Brooklyn/drivers/net/wireless/mediatek/mt76/mt7921/mac.c

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38 KiB
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initial commit
2021-05-26 19:09:36 +00:00
// SPDX-License-Identifier: ISC
/* Copyright (C) 2020 MediaTek Inc. */
#include <linux/devcoredump.h>
#include <linux/etherdevice.h>
#include <linux/timekeeping.h>
#include "mt7921.h"
#include "../dma.h"
#include "mac.h"
#include "mcu.h"
#define to_rssi(field, rxv) ((FIELD_GET(field, rxv) - 220) / 2)
#define HE_BITS(f) cpu_to_le16(IEEE80211_RADIOTAP_HE_##f)
#define HE_PREP(f, m, v) le16_encode_bits(le32_get_bits(v, MT_CRXV_HE_##m),\
IEEE80211_RADIOTAP_HE_##f)
static struct mt76_wcid *mt7921_rx_get_wcid(struct mt7921_dev *dev,
u16 idx, bool unicast)
{
struct mt7921_sta *sta;
struct mt76_wcid *wcid;
if (idx >= ARRAY_SIZE(dev->mt76.wcid))
return NULL;
wcid = rcu_dereference(dev->mt76.wcid[idx]);
if (unicast || !wcid)
return wcid;
if (!wcid->sta)
return NULL;
sta = container_of(wcid, struct mt7921_sta, wcid);
if (!sta->vif)
return NULL;
return &sta->vif->sta.wcid;
}
void mt7921_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps)
{
}
bool mt7921_mac_wtbl_update(struct mt7921_dev *dev, int idx, u32 mask)
{
mt76_rmw(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_WLAN_IDX,
FIELD_PREP(MT_WTBL_UPDATE_WLAN_IDX, idx) | mask);
return mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY,
0, 5000);
}
static u32 mt7921_mac_wtbl_lmac_addr(struct mt7921_dev *dev, u16 wcid)
{
mt76_wr(dev, MT_WTBLON_TOP_WDUCR,
FIELD_PREP(MT_WTBLON_TOP_WDUCR_GROUP, (wcid >> 7)));
return MT_WTBL_LMAC_OFFS(wcid, 0);
}
static void mt7921_mac_sta_poll(struct mt7921_dev *dev)
{
static const u8 ac_to_tid[] = {
[IEEE80211_AC_BE] = 0,
[IEEE80211_AC_BK] = 1,
[IEEE80211_AC_VI] = 4,
[IEEE80211_AC_VO] = 6
};
struct ieee80211_sta *sta;
struct mt7921_sta *msta;
u32 tx_time[IEEE80211_NUM_ACS], rx_time[IEEE80211_NUM_ACS];
LIST_HEAD(sta_poll_list);
int i;
spin_lock_bh(&dev->sta_poll_lock);
list_splice_init(&dev->sta_poll_list, &sta_poll_list);
spin_unlock_bh(&dev->sta_poll_lock);
rcu_read_lock();
while (true) {
bool clear = false;
u32 addr;
u16 idx;
spin_lock_bh(&dev->sta_poll_lock);
if (list_empty(&sta_poll_list)) {
spin_unlock_bh(&dev->sta_poll_lock);
break;
}
msta = list_first_entry(&sta_poll_list,
struct mt7921_sta, poll_list);
list_del_init(&msta->poll_list);
spin_unlock_bh(&dev->sta_poll_lock);
idx = msta->wcid.idx;
addr = mt7921_mac_wtbl_lmac_addr(dev, idx) + 20 * 4;
for (i = 0; i < IEEE80211_NUM_ACS; i++) {
u32 tx_last = msta->airtime_ac[i];
u32 rx_last = msta->airtime_ac[i + 4];
msta->airtime_ac[i] = mt76_rr(dev, addr);
msta->airtime_ac[i + 4] = mt76_rr(dev, addr + 4);
tx_time[i] = msta->airtime_ac[i] - tx_last;
rx_time[i] = msta->airtime_ac[i + 4] - rx_last;
if ((tx_last | rx_last) & BIT(30))
clear = true;
addr += 8;
}
if (clear) {
mt7921_mac_wtbl_update(dev, idx,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac));
}
if (!msta->wcid.sta)
continue;
sta = container_of((void *)msta, struct ieee80211_sta,
drv_priv);
for (i = 0; i < IEEE80211_NUM_ACS; i++) {
u8 q = mt7921_lmac_mapping(dev, i);
u32 tx_cur = tx_time[q];
u32 rx_cur = rx_time[q];
u8 tid = ac_to_tid[i];
if (!tx_cur && !rx_cur)
continue;
ieee80211_sta_register_airtime(sta, tid, tx_cur,
rx_cur);
}
}
rcu_read_unlock();
}
static void
mt7921_mac_decode_he_radiotap_ru(struct mt76_rx_status *status,
struct ieee80211_radiotap_he *he,
__le32 *rxv)
{
u32 ru_h, ru_l;
u8 ru, offs = 0;
ru_l = FIELD_GET(MT_PRXV_HE_RU_ALLOC_L, le32_to_cpu(rxv[0]));
ru_h = FIELD_GET(MT_PRXV_HE_RU_ALLOC_H, le32_to_cpu(rxv[1]));
ru = (u8)(ru_l | ru_h << 4);
status->bw = RATE_INFO_BW_HE_RU;
switch (ru) {
case 0 ... 36:
status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_26;
offs = ru;
break;
case 37 ... 52:
status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_52;
offs = ru - 37;
break;
case 53 ... 60:
status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106;
offs = ru - 53;
break;
case 61 ... 64:
status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_242;
offs = ru - 61;
break;
case 65 ... 66:
status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_484;
offs = ru - 65;
break;
case 67:
status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_996;
break;
case 68:
status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_2x996;
break;
}
he->data1 |= HE_BITS(DATA1_BW_RU_ALLOC_KNOWN);
he->data2 |= HE_BITS(DATA2_RU_OFFSET_KNOWN) |
le16_encode_bits(offs,
IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET);
}
static void
mt7921_mac_decode_he_radiotap(struct sk_buff *skb,
struct mt76_rx_status *status,
__le32 *rxv, u32 phy)
{
/* TODO: struct ieee80211_radiotap_he_mu */
static const struct ieee80211_radiotap_he known = {
.data1 = HE_BITS(DATA1_DATA_MCS_KNOWN) |
HE_BITS(DATA1_DATA_DCM_KNOWN) |
HE_BITS(DATA1_STBC_KNOWN) |
HE_BITS(DATA1_CODING_KNOWN) |
HE_BITS(DATA1_LDPC_XSYMSEG_KNOWN) |
HE_BITS(DATA1_DOPPLER_KNOWN) |
HE_BITS(DATA1_BSS_COLOR_KNOWN),
.data2 = HE_BITS(DATA2_GI_KNOWN) |
HE_BITS(DATA2_TXBF_KNOWN) |
HE_BITS(DATA2_PE_DISAMBIG_KNOWN) |
HE_BITS(DATA2_TXOP_KNOWN),
};
struct ieee80211_radiotap_he *he = NULL;
u32 ltf_size = le32_get_bits(rxv[2], MT_CRXV_HE_LTF_SIZE) + 1;
he = skb_push(skb, sizeof(known));
memcpy(he, &known, sizeof(known));
he->data3 = HE_PREP(DATA3_BSS_COLOR, BSS_COLOR, rxv[14]) |
HE_PREP(DATA3_LDPC_XSYMSEG, LDPC_EXT_SYM, rxv[2]);
he->data5 = HE_PREP(DATA5_PE_DISAMBIG, PE_DISAMBIG, rxv[2]) |
le16_encode_bits(ltf_size,
IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE);
he->data6 = HE_PREP(DATA6_TXOP, TXOP_DUR, rxv[14]) |
HE_PREP(DATA6_DOPPLER, DOPPLER, rxv[14]);
switch (phy) {
case MT_PHY_TYPE_HE_SU:
he->data1 |= HE_BITS(DATA1_FORMAT_SU) |
HE_BITS(DATA1_UL_DL_KNOWN) |
HE_BITS(DATA1_BEAM_CHANGE_KNOWN) |
HE_BITS(DATA1_SPTL_REUSE_KNOWN);
he->data3 |= HE_PREP(DATA3_BEAM_CHANGE, BEAM_CHNG, rxv[14]) |
HE_PREP(DATA3_UL_DL, UPLINK, rxv[2]);
he->data4 |= HE_PREP(DATA4_SU_MU_SPTL_REUSE, SR_MASK, rxv[11]);
break;
case MT_PHY_TYPE_HE_EXT_SU:
he->data1 |= HE_BITS(DATA1_FORMAT_EXT_SU) |
HE_BITS(DATA1_UL_DL_KNOWN);
he->data3 |= HE_PREP(DATA3_UL_DL, UPLINK, rxv[2]);
break;
case MT_PHY_TYPE_HE_MU:
he->data1 |= HE_BITS(DATA1_FORMAT_MU) |
HE_BITS(DATA1_UL_DL_KNOWN) |
HE_BITS(DATA1_SPTL_REUSE_KNOWN);
he->data3 |= HE_PREP(DATA3_UL_DL, UPLINK, rxv[2]);
he->data4 |= HE_PREP(DATA4_SU_MU_SPTL_REUSE, SR_MASK, rxv[11]);
mt7921_mac_decode_he_radiotap_ru(status, he, rxv);
break;
case MT_PHY_TYPE_HE_TB:
he->data1 |= HE_BITS(DATA1_FORMAT_TRIG) |
HE_BITS(DATA1_SPTL_REUSE_KNOWN) |
HE_BITS(DATA1_SPTL_REUSE2_KNOWN) |
HE_BITS(DATA1_SPTL_REUSE3_KNOWN) |
HE_BITS(DATA1_SPTL_REUSE4_KNOWN);
he->data4 |= HE_PREP(DATA4_TB_SPTL_REUSE1, SR_MASK, rxv[11]) |
HE_PREP(DATA4_TB_SPTL_REUSE2, SR1_MASK, rxv[11]) |
HE_PREP(DATA4_TB_SPTL_REUSE3, SR2_MASK, rxv[11]) |
HE_PREP(DATA4_TB_SPTL_REUSE4, SR3_MASK, rxv[11]);
mt7921_mac_decode_he_radiotap_ru(status, he, rxv);
break;
default:
break;
}
}
static void
mt7921_get_status_freq_info(struct mt7921_dev *dev, struct mt76_phy *mphy,
struct mt76_rx_status *status, u8 chfreq)
{
if (!test_bit(MT76_HW_SCANNING, &mphy->state) &&
!test_bit(MT76_HW_SCHED_SCANNING, &mphy->state) &&
!test_bit(MT76_STATE_ROC, &mphy->state)) {
status->freq = mphy->chandef.chan->center_freq;
status->band = mphy->chandef.chan->band;
return;
}
status->band = chfreq <= 14 ? NL80211_BAND_2GHZ : NL80211_BAND_5GHZ;
status->freq = ieee80211_channel_to_frequency(chfreq, status->band);
}
int mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb)
{
struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb;
struct mt76_phy *mphy = &dev->mt76.phy;
struct mt7921_phy *phy = &dev->phy;
struct ieee80211_supported_band *sband;
struct ieee80211_hdr *hdr;
__le32 *rxd = (__le32 *)skb->data;
__le32 *rxv = NULL;
u32 mode = 0;
u32 rxd1 = le32_to_cpu(rxd[1]);
u32 rxd2 = le32_to_cpu(rxd[2]);
u32 rxd3 = le32_to_cpu(rxd[3]);
bool unicast, insert_ccmp_hdr = false;
u8 remove_pad;
int i, idx;
u8 chfreq;
memset(status, 0, sizeof(*status));
if (rxd1 & MT_RXD1_NORMAL_BAND_IDX)
return -EINVAL;
if (!test_bit(MT76_STATE_RUNNING, &mphy->state))
return -EINVAL;
chfreq = FIELD_GET(MT_RXD3_NORMAL_CH_FREQ, rxd3);
unicast = FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) == MT_RXD3_NORMAL_U2M;
idx = FIELD_GET(MT_RXD1_NORMAL_WLAN_IDX, rxd1);
status->wcid = mt7921_rx_get_wcid(dev, idx, unicast);
if (status->wcid) {
struct mt7921_sta *msta;
msta = container_of(status->wcid, struct mt7921_sta, wcid);
spin_lock_bh(&dev->sta_poll_lock);
if (list_empty(&msta->poll_list))
list_add_tail(&msta->poll_list, &dev->sta_poll_list);
spin_unlock_bh(&dev->sta_poll_lock);
}
mt7921_get_status_freq_info(dev, mphy, status, chfreq);
if (status->band == NL80211_BAND_5GHZ)
sband = &mphy->sband_5g.sband;
else
sband = &mphy->sband_2g.sband;
if (!sband->channels)
return -EINVAL;
if (rxd1 & MT_RXD1_NORMAL_FCS_ERR)
status->flag |= RX_FLAG_FAILED_FCS_CRC;
if (rxd1 & MT_RXD1_NORMAL_TKIP_MIC_ERR)
status->flag |= RX_FLAG_MMIC_ERROR;
if (FIELD_GET(MT_RXD1_NORMAL_SEC_MODE, rxd1) != 0 &&
!(rxd1 & (MT_RXD1_NORMAL_CLM | MT_RXD1_NORMAL_CM))) {
status->flag |= RX_FLAG_DECRYPTED;
status->flag |= RX_FLAG_IV_STRIPPED;
status->flag |= RX_FLAG_MMIC_STRIPPED | RX_FLAG_MIC_STRIPPED;
}
if (!(rxd2 & MT_RXD2_NORMAL_NON_AMPDU)) {
status->flag |= RX_FLAG_AMPDU_DETAILS;
/* all subframes of an A-MPDU have the same timestamp */
if (phy->rx_ampdu_ts != rxd[14]) {
if (!++phy->ampdu_ref)
phy->ampdu_ref++;
}
phy->rx_ampdu_ts = rxd[14];
status->ampdu_ref = phy->ampdu_ref;
}
remove_pad = FIELD_GET(MT_RXD2_NORMAL_HDR_OFFSET, rxd2);
if (rxd2 & MT_RXD2_NORMAL_MAX_LEN_ERROR)
return -EINVAL;
rxd += 6;
if (rxd1 & MT_RXD1_NORMAL_GROUP_4) {
rxd += 4;
if ((u8 *)rxd - skb->data >= skb->len)
return -EINVAL;
}
if (rxd1 & MT_RXD1_NORMAL_GROUP_1) {
u8 *data = (u8 *)rxd;
if (status->flag & RX_FLAG_DECRYPTED) {
status->iv[0] = data[5];
status->iv[1] = data[4];
status->iv[2] = data[3];
status->iv[3] = data[2];
status->iv[4] = data[1];
status->iv[5] = data[0];
insert_ccmp_hdr = FIELD_GET(MT_RXD2_NORMAL_FRAG, rxd2);
}
rxd += 4;
if ((u8 *)rxd - skb->data >= skb->len)
return -EINVAL;
}
if (rxd1 & MT_RXD1_NORMAL_GROUP_2) {
rxd += 2;
if ((u8 *)rxd - skb->data >= skb->len)
return -EINVAL;
}
/* RXD Group 3 - P-RXV */
if (rxd1 & MT_RXD1_NORMAL_GROUP_3) {
u8 stbc, gi;
u32 v0, v1;
bool cck;
rxv = rxd;
rxd += 2;
if ((u8 *)rxd - skb->data >= skb->len)
return -EINVAL;
v0 = le32_to_cpu(rxv[0]);
v1 = le32_to_cpu(rxv[1]);
if (v0 & MT_PRXV_HT_AD_CODE)
status->enc_flags |= RX_ENC_FLAG_LDPC;
status->chains = mphy->antenna_mask;
status->chain_signal[0] = to_rssi(MT_PRXV_RCPI0, v1);
status->chain_signal[1] = to_rssi(MT_PRXV_RCPI1, v1);
status->chain_signal[2] = to_rssi(MT_PRXV_RCPI2, v1);
status->chain_signal[3] = to_rssi(MT_PRXV_RCPI3, v1);
status->signal = status->chain_signal[0];
for (i = 1; i < hweight8(mphy->antenna_mask); i++) {
if (!(status->chains & BIT(i)))
continue;
status->signal = max(status->signal,
status->chain_signal[i]);
}
stbc = FIELD_GET(MT_PRXV_STBC, v0);
gi = FIELD_GET(MT_PRXV_SGI, v0);
cck = false;
idx = i = FIELD_GET(MT_PRXV_TX_RATE, v0);
mode = FIELD_GET(MT_PRXV_TX_MODE, v0);
switch (mode) {
case MT_PHY_TYPE_CCK:
cck = true;
fallthrough;
case MT_PHY_TYPE_OFDM:
i = mt76_get_rate(&dev->mt76, sband, i, cck);
break;
case MT_PHY_TYPE_HT_GF:
case MT_PHY_TYPE_HT:
status->encoding = RX_ENC_HT;
if (i > 31)
return -EINVAL;
break;
case MT_PHY_TYPE_VHT:
status->nss =
FIELD_GET(MT_PRXV_NSTS, v0) + 1;
status->encoding = RX_ENC_VHT;
if (i > 9)
return -EINVAL;
break;
case MT_PHY_TYPE_HE_MU:
status->flag |= RX_FLAG_RADIOTAP_HE_MU;
fallthrough;
case MT_PHY_TYPE_HE_SU:
case MT_PHY_TYPE_HE_EXT_SU:
case MT_PHY_TYPE_HE_TB:
status->nss =
FIELD_GET(MT_PRXV_NSTS, v0) + 1;
status->encoding = RX_ENC_HE;
status->flag |= RX_FLAG_RADIOTAP_HE;
i &= GENMASK(3, 0);
if (gi <= NL80211_RATE_INFO_HE_GI_3_2)
status->he_gi = gi;
status->he_dcm = !!(idx & MT_PRXV_TX_DCM);
break;
default:
return -EINVAL;
}
status->rate_idx = i;
switch (FIELD_GET(MT_PRXV_FRAME_MODE, v0)) {
case IEEE80211_STA_RX_BW_20:
break;
case IEEE80211_STA_RX_BW_40:
if (mode & MT_PHY_TYPE_HE_EXT_SU &&
(idx & MT_PRXV_TX_ER_SU_106T)) {
status->bw = RATE_INFO_BW_HE_RU;
status->he_ru =
NL80211_RATE_INFO_HE_RU_ALLOC_106;
} else {
status->bw = RATE_INFO_BW_40;
}
break;
case IEEE80211_STA_RX_BW_80:
status->bw = RATE_INFO_BW_80;
break;
case IEEE80211_STA_RX_BW_160:
status->bw = RATE_INFO_BW_160;
break;
default:
return -EINVAL;
}
status->enc_flags |= RX_ENC_FLAG_STBC_MASK * stbc;
if (mode < MT_PHY_TYPE_HE_SU && gi)
status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
if (rxd1 & MT_RXD1_NORMAL_GROUP_5) {
rxd += 18;
if ((u8 *)rxd - skb->data >= skb->len)
return -EINVAL;
}
}
skb_pull(skb, (u8 *)rxd - skb->data + 2 * remove_pad);
if (insert_ccmp_hdr) {
u8 key_id = FIELD_GET(MT_RXD1_NORMAL_KEY_ID, rxd1);
mt76_insert_ccmp_hdr(skb, key_id);
}
if (rxv && status->flag & RX_FLAG_RADIOTAP_HE)
mt7921_mac_decode_he_radiotap(skb, status, rxv, mode);
hdr = mt76_skb_get_hdr(skb);
if (!status->wcid || !ieee80211_is_data_qos(hdr->frame_control))
return 0;
status->aggr = unicast &&
!ieee80211_is_qos_nullfunc(hdr->frame_control);
status->tid = *ieee80211_get_qos_ctl(hdr) & IEEE80211_QOS_CTL_TID_MASK;
status->seqno = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl));
return 0;
}
static void
mt7921_mac_write_txwi_8023(struct mt7921_dev *dev, __le32 *txwi,
struct sk_buff *skb, struct mt76_wcid *wcid)
{
u8 tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK;
u8 fc_type, fc_stype;
bool wmm = false;
u32 val;
if (wcid->sta) {
struct ieee80211_sta *sta;
sta = container_of((void *)wcid, struct ieee80211_sta, drv_priv);
wmm = sta->wme;
}
val = FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_3) |
FIELD_PREP(MT_TXD1_TID, tid);
if (be16_to_cpu(skb->protocol) >= ETH_P_802_3_MIN)
val |= MT_TXD1_ETH_802_3;
txwi[1] |= cpu_to_le32(val);
fc_type = IEEE80211_FTYPE_DATA >> 2;
fc_stype = wmm ? IEEE80211_STYPE_QOS_DATA >> 4 : 0;
val = FIELD_PREP(MT_TXD2_FRAME_TYPE, fc_type) |
FIELD_PREP(MT_TXD2_SUB_TYPE, fc_stype);
txwi[2] |= cpu_to_le32(val);
val = FIELD_PREP(MT_TXD7_TYPE, fc_type) |
FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype);
txwi[7] |= cpu_to_le32(val);
}
static void
mt7921_mac_write_txwi_80211(struct mt7921_dev *dev, __le32 *txwi,
struct sk_buff *skb, struct ieee80211_key_conf *key)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
bool multicast = is_multicast_ether_addr(hdr->addr1);
u8 tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK;
__le16 fc = hdr->frame_control;
u8 fc_type, fc_stype;
u32 val;
if (ieee80211_is_action(fc) &&
mgmt->u.action.category == WLAN_CATEGORY_BACK &&
mgmt->u.action.u.addba_req.action_code == WLAN_ACTION_ADDBA_REQ) {
u16 capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
txwi[5] |= cpu_to_le32(MT_TXD5_ADD_BA);
tid = (capab >> 2) & IEEE80211_QOS_CTL_TID_MASK;
} else if (ieee80211_is_back_req(hdr->frame_control)) {
struct ieee80211_bar *bar = (struct ieee80211_bar *)hdr;
u16 control = le16_to_cpu(bar->control);
tid = FIELD_GET(IEEE80211_BAR_CTRL_TID_INFO_MASK, control);
}
val = FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_11) |
FIELD_PREP(MT_TXD1_HDR_INFO,
ieee80211_get_hdrlen_from_skb(skb) / 2) |
FIELD_PREP(MT_TXD1_TID, tid);
txwi[1] |= cpu_to_le32(val);
fc_type = (le16_to_cpu(fc) & IEEE80211_FCTL_FTYPE) >> 2;
fc_stype = (le16_to_cpu(fc) & IEEE80211_FCTL_STYPE) >> 4;
val = FIELD_PREP(MT_TXD2_FRAME_TYPE, fc_type) |
FIELD_PREP(MT_TXD2_SUB_TYPE, fc_stype) |
FIELD_PREP(MT_TXD2_MULTICAST, multicast);
if (key && multicast && ieee80211_is_robust_mgmt_frame(skb) &&
key->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
val |= MT_TXD2_BIP;
txwi[3] &= ~cpu_to_le32(MT_TXD3_PROTECT_FRAME);
}
if (!ieee80211_is_data(fc) || multicast)
val |= MT_TXD2_FIX_RATE;
txwi[2] |= cpu_to_le32(val);
if (ieee80211_is_beacon(fc)) {
txwi[3] &= ~cpu_to_le32(MT_TXD3_SW_POWER_MGMT);
txwi[3] |= cpu_to_le32(MT_TXD3_REM_TX_COUNT);
}
if (info->flags & IEEE80211_TX_CTL_INJECTED) {
u16 seqno = le16_to_cpu(hdr->seq_ctrl);
if (ieee80211_is_back_req(hdr->frame_control)) {
struct ieee80211_bar *bar;
bar = (struct ieee80211_bar *)skb->data;
seqno = le16_to_cpu(bar->start_seq_num);
}
val = MT_TXD3_SN_VALID |
FIELD_PREP(MT_TXD3_SEQ, IEEE80211_SEQ_TO_SN(seqno));
txwi[3] |= cpu_to_le32(val);
}
val = FIELD_PREP(MT_TXD7_TYPE, fc_type) |
FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype);
txwi[7] |= cpu_to_le32(val);
}
void mt7921_mac_write_txwi(struct mt7921_dev *dev, __le32 *txwi,
struct sk_buff *skb, struct mt76_wcid *wcid,
struct ieee80211_key_conf *key, bool beacon)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_vif *vif = info->control.vif;
struct mt76_phy *mphy = &dev->mphy;
u8 p_fmt, q_idx, omac_idx = 0, wmm_idx = 0;
bool is_8023 = info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP;
u16 tx_count = 15;
u32 val;
if (vif) {
struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
omac_idx = mvif->omac_idx;
wmm_idx = mvif->wmm_idx;
}
if (beacon) {
p_fmt = MT_TX_TYPE_FW;
q_idx = MT_LMAC_BCN0;
} else if (skb_get_queue_mapping(skb) >= MT_TXQ_PSD) {
p_fmt = MT_TX_TYPE_CT;
q_idx = MT_LMAC_ALTX0;
} else {
p_fmt = MT_TX_TYPE_CT;
q_idx = wmm_idx * MT7921_MAX_WMM_SETS +
mt7921_lmac_mapping(dev, skb_get_queue_mapping(skb));
}
val = FIELD_PREP(MT_TXD0_TX_BYTES, skb->len + MT_TXD_SIZE) |
FIELD_PREP(MT_TXD0_PKT_FMT, p_fmt) |
FIELD_PREP(MT_TXD0_Q_IDX, q_idx);
txwi[0] = cpu_to_le32(val);
val = MT_TXD1_LONG_FORMAT |
FIELD_PREP(MT_TXD1_WLAN_IDX, wcid->idx) |
FIELD_PREP(MT_TXD1_OWN_MAC, omac_idx);
txwi[1] = cpu_to_le32(val);
txwi[2] = 0;
val = FIELD_PREP(MT_TXD3_REM_TX_COUNT, tx_count);
if (key)
val |= MT_TXD3_PROTECT_FRAME;
if (info->flags & IEEE80211_TX_CTL_NO_ACK)
val |= MT_TXD3_NO_ACK;
txwi[3] = cpu_to_le32(val);
txwi[4] = 0;
txwi[5] = 0;
txwi[6] = 0;
txwi[7] = wcid->amsdu ? cpu_to_le32(MT_TXD7_HW_AMSDU) : 0;
if (is_8023)
mt7921_mac_write_txwi_8023(dev, txwi, skb, wcid);
else
mt7921_mac_write_txwi_80211(dev, txwi, skb, key);
if (txwi[2] & cpu_to_le32(MT_TXD2_FIX_RATE)) {
u16 rate;
/* hardware won't add HTC for mgmt/ctrl frame */
txwi[2] |= cpu_to_le32(MT_TXD2_HTC_VLD);
if (mphy->chandef.chan->band == NL80211_BAND_5GHZ)
rate = MT7921_5G_RATE_DEFAULT;
else
rate = MT7921_2G_RATE_DEFAULT;
val = MT_TXD6_FIXED_BW |
FIELD_PREP(MT_TXD6_TX_RATE, rate);
txwi[6] |= cpu_to_le32(val);
txwi[3] |= cpu_to_le32(MT_TXD3_BA_DISABLE);
}
}
static void
mt7921_write_hw_txp(struct mt7921_dev *dev, struct mt76_tx_info *tx_info,
void *txp_ptr, u32 id)
{
struct mt7921_hw_txp *txp = txp_ptr;
struct mt7921_txp_ptr *ptr = &txp->ptr[0];
int i, nbuf = tx_info->nbuf - 1;
tx_info->buf[0].len = MT_TXD_SIZE + sizeof(*txp);
tx_info->nbuf = 1;
txp->msdu_id[0] = cpu_to_le16(id | MT_MSDU_ID_VALID);
for (i = 0; i < nbuf; i++) {
u16 len = tx_info->buf[i + 1].len & MT_TXD_LEN_MASK;
u32 addr = tx_info->buf[i + 1].addr;
if (i == nbuf - 1)
len |= MT_TXD_LEN_LAST;
if (i & 1) {
ptr->buf1 = cpu_to_le32(addr);
ptr->len1 = cpu_to_le16(len);
ptr++;
} else {
ptr->buf0 = cpu_to_le32(addr);
ptr->len0 = cpu_to_le16(len);
}
}
}
static void mt7921_set_tx_blocked(struct mt7921_dev *dev, bool blocked)
{
struct mt76_phy *mphy = &dev->mphy;
struct mt76_queue *q;
q = mphy->q_tx[0];
if (blocked == q->blocked)
return;
q->blocked = blocked;
if (!blocked)
mt76_worker_schedule(&dev->mt76.tx_worker);
}
int mt7921_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
enum mt76_txq_id qid, struct mt76_wcid *wcid,
struct ieee80211_sta *sta,
struct mt76_tx_info *tx_info)
{
struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb);
struct ieee80211_key_conf *key = info->control.hw_key;
struct mt76_tx_cb *cb = mt76_tx_skb_cb(tx_info->skb);
struct mt76_txwi_cache *t;
struct mt7921_txp_common *txp;
int id;
u8 *txwi = (u8 *)txwi_ptr;
if (unlikely(tx_info->skb->len <= ETH_HLEN))
return -EINVAL;
if (!wcid)
wcid = &dev->mt76.global_wcid;
cb->wcid = wcid->idx;
t = (struct mt76_txwi_cache *)(txwi + mdev->drv->txwi_size);
t->skb = tx_info->skb;
spin_lock_bh(&dev->token_lock);
id = idr_alloc(&dev->token, t, 0, MT7921_TOKEN_SIZE, GFP_ATOMIC);
if (id >= 0)
dev->token_count++;
if (dev->token_count >= MT7921_TOKEN_SIZE - MT7921_TOKEN_FREE_THR)
mt7921_set_tx_blocked(dev, true);
spin_unlock_bh(&dev->token_lock);
if (id < 0)
return id;
mt7921_mac_write_txwi(dev, txwi_ptr, tx_info->skb, wcid, key,
false);
txp = (struct mt7921_txp_common *)(txwi + MT_TXD_SIZE);
memset(txp, 0, sizeof(struct mt7921_txp_common));
mt7921_write_hw_txp(dev, tx_info, txp, id);
tx_info->skb = DMA_DUMMY_DATA;
return 0;
}
static void
mt7921_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi)
{
struct mt7921_sta *msta;
u16 fc, tid;
u32 val;
if (!sta || !sta->ht_cap.ht_supported)
return;
tid = FIELD_GET(MT_TXD1_TID, le32_to_cpu(txwi[1]));
if (tid >= 6) /* skip VO queue */
return;
val = le32_to_cpu(txwi[2]);
fc = FIELD_GET(MT_TXD2_FRAME_TYPE, val) << 2 |
FIELD_GET(MT_TXD2_SUB_TYPE, val) << 4;
if (unlikely(fc != (IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA)))
return;
msta = (struct mt7921_sta *)sta->drv_priv;
if (!test_and_set_bit(tid, &msta->ampdu_state))
ieee80211_start_tx_ba_session(sta, tid, 0);
}
static void
mt7921_tx_complete_status(struct mt76_dev *mdev, struct sk_buff *skb,
struct ieee80211_sta *sta, u8 stat,
struct list_head *free_list)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_tx_status status = {
.sta = sta,
.info = info,
.skb = skb,
.free_list = free_list,
};
struct ieee80211_hw *hw;
if (sta) {
struct mt7921_sta *msta;
msta = (struct mt7921_sta *)sta->drv_priv;
status.rate = &msta->stats.tx_rate;
}
hw = mt76_tx_status_get_hw(mdev, skb);
if (info->flags & IEEE80211_TX_CTL_AMPDU)
info->flags |= IEEE80211_TX_STAT_AMPDU;
if (stat)
ieee80211_tx_info_clear_status(info);
if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
info->flags |= IEEE80211_TX_STAT_ACK;
info->status.tx_time = 0;
ieee80211_tx_status_ext(hw, &status);
}
void mt7921_txp_skb_unmap(struct mt76_dev *dev,
struct mt76_txwi_cache *t)
{
struct mt7921_txp_common *txp;
int i;
txp = mt7921_txwi_to_txp(dev, t);
for (i = 0; i < ARRAY_SIZE(txp->hw.ptr); i++) {
struct mt7921_txp_ptr *ptr = &txp->hw.ptr[i];
bool last;
u16 len;
len = le16_to_cpu(ptr->len0);
last = len & MT_TXD_LEN_LAST;
len &= MT_TXD_LEN_MASK;
dma_unmap_single(dev->dev, le32_to_cpu(ptr->buf0), len,
DMA_TO_DEVICE);
if (last)
break;
len = le16_to_cpu(ptr->len1);
last = len & MT_TXD_LEN_LAST;
len &= MT_TXD_LEN_MASK;
dma_unmap_single(dev->dev, le32_to_cpu(ptr->buf1), len,
DMA_TO_DEVICE);
if (last)
break;
}
}
void mt7921_mac_tx_free(struct mt7921_dev *dev, struct sk_buff *skb)
{
struct mt7921_tx_free *free = (struct mt7921_tx_free *)skb->data;
struct mt76_dev *mdev = &dev->mt76;
struct mt76_txwi_cache *txwi;
struct ieee80211_sta *sta = NULL;
LIST_HEAD(free_list);
struct sk_buff *tmp;
bool wake = false;
u8 i, count;
/* clean DMA queues and unmap buffers first */
mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[MT_TXQ_PSD], false);
mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[MT_TXQ_BE], false);
/* TODO: MT_TX_FREE_LATENCY is msdu time from the TXD is queued into PLE,
* to the time ack is received or dropped by hw (air + hw queue time).
* Should avoid accessing WTBL to get Tx airtime, and use it instead.
*/
count = FIELD_GET(MT_TX_FREE_MSDU_CNT, le16_to_cpu(free->ctrl));
for (i = 0; i < count; i++) {
u32 msdu, info = le32_to_cpu(free->info[i]);
u8 stat;
/* 1'b1: new wcid pair.
* 1'b0: msdu_id with the same 'wcid pair' as above.
*/
if (info & MT_TX_FREE_PAIR) {
struct mt7921_sta *msta;
struct mt7921_phy *phy;
struct mt76_wcid *wcid;
u16 idx;
count++;
idx = FIELD_GET(MT_TX_FREE_WLAN_ID, info);
wcid = rcu_dereference(dev->mt76.wcid[idx]);
sta = wcid_to_sta(wcid);
if (!sta)
continue;
msta = container_of(wcid, struct mt7921_sta, wcid);
phy = msta->vif->phy;
spin_lock_bh(&dev->sta_poll_lock);
if (list_empty(&msta->stats_list))
list_add_tail(&msta->stats_list, &phy->stats_list);
if (list_empty(&msta->poll_list))
list_add_tail(&msta->poll_list, &dev->sta_poll_list);
spin_unlock_bh(&dev->sta_poll_lock);
continue;
}
msdu = FIELD_GET(MT_TX_FREE_MSDU_ID, info);
stat = FIELD_GET(MT_TX_FREE_STATUS, info);
spin_lock_bh(&dev->token_lock);
txwi = idr_remove(&dev->token, msdu);
if (txwi)
dev->token_count--;
if (dev->token_count < MT7921_TOKEN_SIZE - MT7921_TOKEN_FREE_THR &&
dev->mphy.q_tx[0]->blocked)
wake = true;
spin_unlock_bh(&dev->token_lock);
if (!txwi)
continue;
mt7921_txp_skb_unmap(mdev, txwi);
if (txwi->skb) {
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(txwi->skb);
void *txwi_ptr = mt76_get_txwi_ptr(mdev, txwi);
if (likely(txwi->skb->protocol != cpu_to_be16(ETH_P_PAE)))
mt7921_tx_check_aggr(sta, txwi_ptr);
if (sta && !info->tx_time_est) {
struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv;
int pending;
pending = atomic_dec_return(&wcid->non_aql_packets);
if (pending < 0)
atomic_cmpxchg(&wcid->non_aql_packets, pending, 0);
}
mt7921_tx_complete_status(mdev, txwi->skb, sta, stat, &free_list);
txwi->skb = NULL;
}
mt76_put_txwi(mdev, txwi);
}
if (wake) {
spin_lock_bh(&dev->token_lock);
mt7921_set_tx_blocked(dev, false);
spin_unlock_bh(&dev->token_lock);
}
napi_consume_skb(skb, 1);
list_for_each_entry_safe(skb, tmp, &free_list, list) {
skb_list_del_init(skb);
napi_consume_skb(skb, 1);
}
if (test_bit(MT76_STATE_PM, &dev->phy.mt76->state))
return;
mt7921_mac_sta_poll(dev);
mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
mt76_worker_schedule(&dev->mt76.tx_worker);
}
void mt7921_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e)
{
struct mt7921_dev *dev;
if (!e->txwi) {
dev_kfree_skb_any(e->skb);
return;
}
dev = container_of(mdev, struct mt7921_dev, mt76);
/* error path */
if (e->skb == DMA_DUMMY_DATA) {
struct mt76_txwi_cache *t;
struct mt7921_txp_common *txp;
u16 token;
txp = mt7921_txwi_to_txp(mdev, e->txwi);
token = le16_to_cpu(txp->hw.msdu_id[0]) & ~MT_MSDU_ID_VALID;
spin_lock_bh(&dev->token_lock);
t = idr_remove(&dev->token, token);
spin_unlock_bh(&dev->token_lock);
e->skb = t ? t->skb : NULL;
}
if (e->skb) {
struct mt76_tx_cb *cb = mt76_tx_skb_cb(e->skb);
struct mt76_wcid *wcid;
wcid = rcu_dereference(dev->mt76.wcid[cb->wcid]);
mt7921_tx_complete_status(mdev, e->skb, wcid_to_sta(wcid), 0,
NULL);
}
}
void mt7921_mac_reset_counters(struct mt7921_phy *phy)
{
struct mt7921_dev *dev = phy->dev;
int i;
for (i = 0; i < 4; i++) {
mt76_rr(dev, MT_TX_AGG_CNT(0, i));
mt76_rr(dev, MT_TX_AGG_CNT2(0, i));
}
dev->mt76.phy.survey_time = ktime_get_boottime();
memset(&dev->mt76.aggr_stats[0], 0, sizeof(dev->mt76.aggr_stats) / 2);
/* reset airtime counters */
mt76_rr(dev, MT_MIB_SDR9(0));
mt76_rr(dev, MT_MIB_SDR36(0));
mt76_rr(dev, MT_MIB_SDR37(0));
mt76_set(dev, MT_WF_RMAC_MIB_TIME0(0), MT_WF_RMAC_MIB_RXTIME_CLR);
mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(0), MT_WF_RMAC_MIB_RXTIME_CLR);
}
void mt7921_mac_set_timing(struct mt7921_phy *phy)
{
s16 coverage_class = phy->coverage_class;
struct mt7921_dev *dev = phy->dev;
u32 val, reg_offset;
u32 cck = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 231) |
FIELD_PREP(MT_TIMEOUT_VAL_CCA, 48);
u32 ofdm = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 60) |
FIELD_PREP(MT_TIMEOUT_VAL_CCA, 28);
int sifs, offset;
bool is_5ghz = phy->mt76->chandef.chan->band == NL80211_BAND_5GHZ;
if (!test_bit(MT76_STATE_RUNNING, &phy->mt76->state))
return;
if (is_5ghz)
sifs = 16;
else
sifs = 10;
mt76_set(dev, MT_ARB_SCR(0),
MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE);
udelay(1);
offset = 3 * coverage_class;
reg_offset = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, offset) |
FIELD_PREP(MT_TIMEOUT_VAL_CCA, offset);
mt76_wr(dev, MT_TMAC_CDTR(0), cck + reg_offset);
mt76_wr(dev, MT_TMAC_ODTR(0), ofdm + reg_offset);
mt76_wr(dev, MT_TMAC_ICR0(0),
FIELD_PREP(MT_IFS_EIFS, 360) |
FIELD_PREP(MT_IFS_RIFS, 2) |
FIELD_PREP(MT_IFS_SIFS, sifs) |
FIELD_PREP(MT_IFS_SLOT, phy->slottime));
if (phy->slottime < 20 || is_5ghz)
val = MT7921_CFEND_RATE_DEFAULT;
else
val = MT7921_CFEND_RATE_11B;
mt76_rmw_field(dev, MT_AGG_ACR0(0), MT_AGG_ACR_CFEND_RATE, val);
mt76_clear(dev, MT_ARB_SCR(0),
MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE);
}
static u8
mt7921_phy_get_nf(struct mt7921_phy *phy, int idx)
{
return 0;
}
static void
mt7921_phy_update_channel(struct mt76_phy *mphy, int idx)
{
struct mt7921_dev *dev = container_of(mphy->dev, struct mt7921_dev, mt76);
struct mt7921_phy *phy = (struct mt7921_phy *)mphy->priv;
struct mt76_channel_state *state;
u64 busy_time, tx_time, rx_time, obss_time;
int nf;
busy_time = mt76_get_field(dev, MT_MIB_SDR9(idx),
MT_MIB_SDR9_BUSY_MASK);
tx_time = mt76_get_field(dev, MT_MIB_SDR36(idx),
MT_MIB_SDR36_TXTIME_MASK);
rx_time = mt76_get_field(dev, MT_MIB_SDR37(idx),
MT_MIB_SDR37_RXTIME_MASK);
obss_time = mt76_get_field(dev, MT_WF_RMAC_MIB_AIRTIME14(idx),
MT_MIB_OBSSTIME_MASK);
nf = mt7921_phy_get_nf(phy, idx);
if (!phy->noise)
phy->noise = nf << 4;
else if (nf)
phy->noise += nf - (phy->noise >> 4);
state = mphy->chan_state;
state->cc_busy += busy_time;
state->cc_tx += tx_time;
state->cc_rx += rx_time + obss_time;
state->cc_bss_rx += rx_time;
state->noise = -(phy->noise >> 4);
}
void mt7921_update_channel(struct mt76_dev *mdev)
{
struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
if (mt76_connac_pm_wake(&dev->mphy, &dev->pm))
return;
mt7921_phy_update_channel(&mdev->phy, 0);
/* reset obss airtime */
mt76_set(dev, MT_WF_RMAC_MIB_TIME0(0), MT_WF_RMAC_MIB_RXTIME_CLR);
mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
}
static bool
mt7921_wait_reset_state(struct mt7921_dev *dev, u32 state)
{
bool ret;
ret = wait_event_timeout(dev->reset_wait,
(READ_ONCE(dev->reset_state) & state),
MT7921_RESET_TIMEOUT);
WARN(!ret, "Timeout waiting for MCU reset state %x\n", state);
return ret;
}
static void
mt7921_dma_reset(struct mt7921_phy *phy)
{
struct mt7921_dev *dev = phy->dev;
int i;
mt76_clear(dev, MT_WFDMA0_GLO_CFG,
MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN);
usleep_range(1000, 2000);
mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_WA], true);
for (i = 0; i < __MT_TXQ_MAX; i++)
mt76_queue_tx_cleanup(dev, phy->mt76->q_tx[i], true);
mt76_for_each_q_rx(&dev->mt76, i) {
mt76_queue_rx_reset(dev, i);
}
/* re-init prefetch settings after reset */
mt7921_dma_prefetch(dev);
mt76_set(dev, MT_WFDMA0_GLO_CFG,
MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN);
}
void mt7921_tx_token_put(struct mt7921_dev *dev)
{
struct mt76_txwi_cache *txwi;
int id;
spin_lock_bh(&dev->token_lock);
idr_for_each_entry(&dev->token, txwi, id) {
mt7921_txp_skb_unmap(&dev->mt76, txwi);
if (txwi->skb) {
struct ieee80211_hw *hw;
hw = mt76_tx_status_get_hw(&dev->mt76, txwi->skb);
ieee80211_free_txskb(hw, txwi->skb);
}
mt76_put_txwi(&dev->mt76, txwi);
dev->token_count--;
}
spin_unlock_bh(&dev->token_lock);
idr_destroy(&dev->token);
}
/* system error recovery */
void mt7921_mac_reset_work(struct work_struct *work)
{
struct mt7921_dev *dev;
dev = container_of(work, struct mt7921_dev, reset_work);
if (!(READ_ONCE(dev->reset_state) & MT_MCU_CMD_STOP_DMA))
return;
ieee80211_stop_queues(mt76_hw(dev));
set_bit(MT76_RESET, &dev->mphy.state);
set_bit(MT76_MCU_RESET, &dev->mphy.state);
wake_up(&dev->mt76.mcu.wait);
cancel_delayed_work_sync(&dev->mphy.mac_work);
/* lock/unlock all queues to ensure that no tx is pending */
mt76_txq_schedule_all(&dev->mphy);
mt76_worker_disable(&dev->mt76.tx_worker);
napi_disable(&dev->mt76.napi[0]);
napi_disable(&dev->mt76.napi[1]);
napi_disable(&dev->mt76.napi[2]);
napi_disable(&dev->mt76.tx_napi);
mt7921_mutex_acquire(dev);
mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_DMA_STOPPED);
mt7921_tx_token_put(dev);
idr_init(&dev->token);
if (mt7921_wait_reset_state(dev, MT_MCU_CMD_RESET_DONE)) {
mt7921_dma_reset(&dev->phy);
mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_DMA_INIT);
mt7921_wait_reset_state(dev, MT_MCU_CMD_RECOVERY_DONE);
}
clear_bit(MT76_MCU_RESET, &dev->mphy.state);
clear_bit(MT76_RESET, &dev->mphy.state);
mt76_worker_enable(&dev->mt76.tx_worker);
napi_enable(&dev->mt76.tx_napi);
napi_schedule(&dev->mt76.tx_napi);
napi_enable(&dev->mt76.napi[0]);
napi_schedule(&dev->mt76.napi[0]);
napi_enable(&dev->mt76.napi[1]);
napi_schedule(&dev->mt76.napi[1]);
napi_enable(&dev->mt76.napi[2]);
napi_schedule(&dev->mt76.napi[2]);
ieee80211_wake_queues(mt76_hw(dev));
mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_RESET_DONE);
mt7921_wait_reset_state(dev, MT_MCU_CMD_NORMAL_STATE);
mt7921_mutex_release(dev);
ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work,
MT7921_WATCHDOG_TIME);
}
static void
mt7921_mac_update_mib_stats(struct mt7921_phy *phy)
{
struct mt7921_dev *dev = phy->dev;
struct mib_stats *mib = &phy->mib;
int i, aggr0 = 0, aggr1;
mib->fcs_err_cnt += mt76_get_field(dev, MT_MIB_SDR3(0),
MT_MIB_SDR3_FCS_ERR_MASK);
mib->ack_fail_cnt += mt76_get_field(dev, MT_MIB_MB_BSDR3(0),
MT_MIB_ACK_FAIL_COUNT_MASK);
mib->ba_miss_cnt += mt76_get_field(dev, MT_MIB_MB_BSDR2(0),
MT_MIB_BA_FAIL_COUNT_MASK);
mib->rts_cnt += mt76_get_field(dev, MT_MIB_MB_BSDR0(0),
MT_MIB_RTS_COUNT_MASK);
mib->rts_retries_cnt += mt76_get_field(dev, MT_MIB_MB_BSDR1(0),
MT_MIB_RTS_FAIL_COUNT_MASK);
for (i = 0, aggr1 = aggr0 + 4; i < 4; i++) {
u32 val, val2;
val = mt76_rr(dev, MT_TX_AGG_CNT(0, i));
val2 = mt76_rr(dev, MT_TX_AGG_CNT2(0, i));
dev->mt76.aggr_stats[aggr0++] += val & 0xffff;
dev->mt76.aggr_stats[aggr0++] += val >> 16;
dev->mt76.aggr_stats[aggr1++] += val2 & 0xffff;
dev->mt76.aggr_stats[aggr1++] += val2 >> 16;
}
}
static void
mt7921_mac_sta_stats_work(struct mt7921_phy *phy)
{
struct mt7921_dev *dev = phy->dev;
struct mt7921_sta *msta;
LIST_HEAD(list);
spin_lock_bh(&dev->sta_poll_lock);
list_splice_init(&phy->stats_list, &list);
while (!list_empty(&list)) {
msta = list_first_entry(&list, struct mt7921_sta, stats_list);
list_del_init(&msta->stats_list);
spin_unlock_bh(&dev->sta_poll_lock);
/* query wtbl info to report tx rate for further devices */
mt7921_get_wtbl_info(dev, msta->wcid.idx);
spin_lock_bh(&dev->sta_poll_lock);
}
spin_unlock_bh(&dev->sta_poll_lock);
}
void mt7921_mac_work(struct work_struct *work)
{
struct mt7921_phy *phy;
struct mt76_phy *mphy;
mphy = (struct mt76_phy *)container_of(work, struct mt76_phy,
mac_work.work);
phy = mphy->priv;
if (test_bit(MT76_STATE_PM, &mphy->state))
goto out;
mt7921_mutex_acquire(phy->dev);
mt76_update_survey(mphy->dev);
if (++mphy->mac_work_count == 5) {
mphy->mac_work_count = 0;
mt7921_mac_update_mib_stats(phy);
}
if (++phy->sta_work_count == 10) {
phy->sta_work_count = 0;
mt7921_mac_sta_stats_work(phy);
};
mt7921_mutex_release(phy->dev);
out:
ieee80211_queue_delayed_work(phy->mt76->hw, &mphy->mac_work,
MT7921_WATCHDOG_TIME);
}
void mt7921_pm_wake_work(struct work_struct *work)
{
struct mt7921_dev *dev;
struct mt76_phy *mphy;
dev = (struct mt7921_dev *)container_of(work, struct mt7921_dev,
pm.wake_work);
mphy = dev->phy.mt76;
if (!mt7921_mcu_drv_pmctrl(dev))
mt76_connac_pm_dequeue_skbs(mphy, &dev->pm);
else
dev_err(mphy->dev->dev, "failed to wake device\n");
ieee80211_wake_queues(mphy->hw);
complete_all(&dev->pm.wake_cmpl);
}
void mt7921_pm_power_save_work(struct work_struct *work)
{
struct mt7921_dev *dev;
unsigned long delta;
dev = (struct mt7921_dev *)container_of(work, struct mt7921_dev,
pm.ps_work.work);
delta = dev->pm.idle_timeout;
if (time_is_after_jiffies(dev->pm.last_activity + delta)) {
delta = dev->pm.last_activity + delta - jiffies;
goto out;
}
if (!mt7921_mcu_fw_pmctrl(dev))
return;
out:
queue_delayed_work(dev->mt76.wq, &dev->pm.ps_work, delta);
}
int mt7921_mac_set_beacon_filter(struct mt7921_phy *phy,
struct ieee80211_vif *vif,
bool enable)
{
struct mt7921_dev *dev = phy->dev;
bool ext_phy = phy != &dev->phy;
int err;
if (!dev->pm.enable)
return -EOPNOTSUPP;
err = mt7921_mcu_set_bss_pm(dev, vif, enable);
if (err)
return err;
if (enable) {
vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
mt76_set(dev, MT_WF_RFCR(ext_phy),
MT_WF_RFCR_DROP_OTHER_BEACON);
} else {
vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER;
mt76_clear(dev, MT_WF_RFCR(ext_phy),
MT_WF_RFCR_DROP_OTHER_BEACON);
}
return 0;
}
void mt7921_coredump_work(struct work_struct *work)
{
struct mt7921_dev *dev;
char *dump, *data;
dev = (struct mt7921_dev *)container_of(work, struct mt7921_dev,
coredump.work.work);
if (time_is_after_jiffies(dev->coredump.last_activity +
4 * MT76_CONNAC_COREDUMP_TIMEOUT)) {
queue_delayed_work(dev->mt76.wq, &dev->coredump.work,
MT76_CONNAC_COREDUMP_TIMEOUT);
return;
}
dump = vzalloc(MT76_CONNAC_COREDUMP_SZ);
data = dump;
while (true) {
struct sk_buff *skb;
spin_lock_bh(&dev->mt76.lock);
skb = __skb_dequeue(&dev->coredump.msg_list);
spin_unlock_bh(&dev->mt76.lock);
if (!skb)
break;
skb_pull(skb, sizeof(struct mt7921_mcu_rxd));
if (data + skb->len - dump > MT76_CONNAC_COREDUMP_SZ) {
dev_kfree_skb(skb);
continue;
}
memcpy(data, skb->data, skb->len);
data += skb->len;
dev_kfree_skb(skb);
}
dev_coredumpv(dev->mt76.dev, dump, MT76_CONNAC_COREDUMP_SZ,
GFP_KERNEL);
}
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