#include <linux/etherdevice.h>
#include <linux/timekeeping.h>
#include "coredump.h"
#include "mt7996.h"
#include "../dma.h"
#include "mac.h"
#include "mcu.h"
#define to_rssi(field, rcpi) ((FIELD_GET(field, rcpi) - 220) / 2)
static const struct mt7996_dfs_radar_spec etsi_radar_specs = {
.pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 },
.radar_pattern = {
[5] = { 1, 0, 6, 32, 28, 0, 990, 5010, 17, 1, 1 },
[6] = { 1, 0, 9, 32, 28, 0, 615, 5010, 27, 1, 1 },
[7] = { 1, 0, 15, 32, 28, 0, 240, 445, 27, 1, 1 },
[8] = { 1, 0, 12, 32, 28, 0, 240, 510, 42, 1, 1 },
[9] = { 1, 1, 0, 0, 0, 0, 2490, 3343, 14, 0, 0, 12, 32, 28, { }, 126 },
[10] = { 1, 1, 0, 0, 0, 0, 2490, 3343, 14, 0, 0, 15, 32, 24, { }, 126 },
[11] = { 1, 1, 0, 0, 0, 0, 823, 2510, 14, 0, 0, 18, 32, 28, { }, 54 },
[12] = { 1, 1, 0, 0, 0, 0, 823, 2510, 14, 0, 0, 27, 32, 24, { }, 54 },
},
};
static const struct mt7996_dfs_radar_spec fcc_radar_specs = {
.pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 },
.radar_pattern = {
[0] = { 1, 0, 8, 32, 28, 0, 508, 3076, 13, 1, 1 },
[1] = { 1, 0, 12, 32, 28, 0, 140, 240, 17, 1, 1 },
[2] = { 1, 0, 8, 32, 28, 0, 190, 510, 22, 1, 1 },
[3] = { 1, 0, 6, 32, 28, 0, 190, 510, 32, 1, 1 },
[4] = { 1, 0, 9, 255, 28, 0, 323, 343, 13, 1, 32 },
},
};
static const struct mt7996_dfs_radar_spec jp_radar_specs = {
.pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 },
.radar_pattern = {
[0] = { 1, 0, 8, 32, 28, 0, 508, 3076, 13, 1, 1 },
[1] = { 1, 0, 12, 32, 28, 0, 140, 240, 17, 1, 1 },
[2] = { 1, 0, 8, 32, 28, 0, 190, 510, 22, 1, 1 },
[3] = { 1, 0, 6, 32, 28, 0, 190, 510, 32, 1, 1 },
[4] = { 1, 0, 9, 255, 28, 0, 323, 343, 13, 1, 32 },
[13] = { 1, 0, 7, 32, 28, 0, 3836, 3856, 14, 1, 1 },
[14] = { 1, 0, 6, 32, 28, 0, 615, 5010, 110, 1, 1 },
[15] = { 1, 1, 0, 0, 0, 0, 15, 5010, 110, 0, 0, 12, 32, 28 },
},
};
static struct mt76_wcid *mt7996_rx_get_wcid(struct mt7996_dev *dev,
u16 idx, u8 band_idx)
{
struct mt7996_sta_link *msta_link;
struct mt7996_sta *msta;
struct mt7996_vif *mvif;
struct mt76_wcid *wcid;
int i;
wcid = mt76_wcid_ptr(dev, idx);
if (!wcid || !wcid->sta)
return NULL;
if (!mt7996_band_valid(dev, band_idx))
return NULL;
if (wcid->phy_idx == band_idx)
return wcid;
msta_link = container_of(wcid, struct mt7996_sta_link, wcid);
msta = msta_link->sta;
if (!msta || !msta->vif)
return NULL;
mvif = msta->vif;
for (i = 0; i < ARRAY_SIZE(mvif->mt76.link); i++) {
struct mt76_vif_link *mlink;
mlink = rcu_dereference(mvif->mt76.link[i]);
if (!mlink)
continue;
if (mlink->band_idx != band_idx)
continue;
msta_link = rcu_dereference(msta->link[i]);
break;
}
return &msta_link->wcid;
}
bool mt7996_mac_wtbl_update(struct mt7996_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);
}
u32 mt7996_mac_wtbl_lmac_addr(struct mt7996_dev *dev, u16 wcid, u8 dw)
{
mt76_wr(dev, MT_WTBLON_TOP_WDUCR,
FIELD_PREP(MT_WTBLON_TOP_WDUCR_GROUP, (wcid >> 7)));
return MT_WTBL_LMAC_OFFS(wcid, dw);
}
static void mt7996_mac_sta_poll(struct mt7996_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 mt7996_sta_link *msta_link;
struct mt76_vif_link *mlink;
struct ieee80211_sta *sta;
struct mt7996_sta *msta;
u32 tx_time[IEEE80211_NUM_ACS], rx_time[IEEE80211_NUM_ACS];
LIST_HEAD(sta_poll_list);
struct mt76_wcid *wcid;
int i;
spin_lock_bh(&dev->mt76.sta_poll_lock);
list_splice_init(&dev->mt76.sta_poll_list, &sta_poll_list);
spin_unlock_bh(&dev->mt76.sta_poll_lock);
rcu_read_lock();
while (true) {
bool clear = false;
u32 addr, val;
u16 idx;
s8 rssi[4];
spin_lock_bh(&dev->mt76.sta_poll_lock);
if (list_empty(&sta_poll_list)) {
spin_unlock_bh(&dev->mt76.sta_poll_lock);
break;
}
msta_link = list_first_entry(&sta_poll_list,
struct mt7996_sta_link,
wcid.poll_list);
msta = msta_link->sta;
wcid = &msta_link->wcid;
list_del_init(&wcid->poll_list);
spin_unlock_bh(&dev->mt76.sta_poll_lock);
idx = wcid->idx;
addr = mt7996_mac_wtbl_lmac_addr(dev, idx, 20);
for (i = 0; i < IEEE80211_NUM_ACS; i++) {
u32 tx_last = msta_link->airtime_ac[i];
u32 rx_last = msta_link->airtime_ac[i + 4];
msta_link->airtime_ac[i] = mt76_rr(dev, addr);
msta_link->airtime_ac[i + 4] = mt76_rr(dev, addr + 4);
tx_time[i] = msta_link->airtime_ac[i] - tx_last;
rx_time[i] = msta_link->airtime_ac[i + 4] - rx_last;
if ((tx_last | rx_last) & BIT(30))
clear = true;
addr += 8;
}
if (clear) {
mt7996_mac_wtbl_update(dev, idx,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
memset(msta_link->airtime_ac, 0,
sizeof(msta_link->airtime_ac));
}
if (!wcid->sta)
continue;
sta = container_of((void *)msta, struct ieee80211_sta,
drv_priv);
for (i = 0; i < IEEE80211_NUM_ACS; i++) {
u8 q = mt76_connac_lmac_mapping(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);
}
addr = mt7996_mac_wtbl_lmac_addr(dev, idx, 34);
val = mt76_rr(dev, addr);
rssi[0] = to_rssi(GENMASK(7, 0), val);
rssi[1] = to_rssi(GENMASK(15, 8), val);
rssi[2] = to_rssi(GENMASK(23, 16), val);
rssi[3] = to_rssi(GENMASK(31, 14), val);
mlink = rcu_dereference(msta->vif->mt76.link[wcid->link_id]);
if (mlink) {
struct mt76_phy *mphy = mt76_vif_link_phy(mlink);
if (mphy)
msta_link->ack_signal =
mt76_rx_signal(mphy->antenna_mask,
rssi);
}
ewma_avg_signal_add(&msta_link->avg_ack_signal,
-msta_link->ack_signal);
}
rcu_read_unlock();
}
static int mt7996_reverse_frag0_hdr_trans(struct sk_buff *skb, u16 hdr_gap)
{
struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb;
struct ethhdr *eth_hdr = (struct ethhdr *)(skb->data + hdr_gap);
struct mt7996_sta_link *msta_link = (void *)status->wcid;
struct mt7996_sta *msta = msta_link->sta;
struct ieee80211_bss_conf *link_conf;
__le32 *rxd = (__le32 *)skb->data;
struct ieee80211_sta *sta;
struct ieee80211_vif *vif;
struct ieee80211_hdr hdr;
u16 frame_control;
if (le32_get_bits(rxd[3], MT_RXD3_NORMAL_ADDR_TYPE) !=
MT_RXD3_NORMAL_U2M)
return -EINVAL;
if (!(le32_to_cpu(rxd[1]) & MT_RXD1_NORMAL_GROUP_4))
return -EINVAL;
if (!msta || !msta->vif)
return -EINVAL;
sta = wcid_to_sta(status->wcid);
vif = container_of((void *)msta->vif, struct ieee80211_vif, drv_priv);
link_conf = rcu_dereference(vif->link_conf[msta_link->wcid.link_id]);
if (!link_conf)
return -EINVAL;
frame_control = le32_get_bits(rxd[8], MT_RXD8_FRAME_CONTROL);
hdr.frame_control = cpu_to_le16(frame_control);
hdr.seq_ctrl = cpu_to_le16(le32_get_bits(rxd[10], MT_RXD10_SEQ_CTRL));
hdr.duration_id = 0;
ether_addr_copy(hdr.addr1, vif->addr);
ether_addr_copy(hdr.addr2, sta->addr);
switch (frame_control & (IEEE80211_FCTL_TODS |
IEEE80211_FCTL_FROMDS)) {
case 0:
ether_addr_copy(hdr.addr3, link_conf->bssid);
break;
case IEEE80211_FCTL_FROMDS:
ether_addr_copy(hdr.addr3, eth_hdr->h_source);
break;
case IEEE80211_FCTL_TODS:
ether_addr_copy(hdr.addr3, eth_hdr->h_dest);
break;
case IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS:
ether_addr_copy(hdr.addr3, eth_hdr->h_dest);
ether_addr_copy(hdr.addr4, eth_hdr->h_source);
break;
default:
return -EINVAL;
}
skb_pull(skb, hdr_gap + sizeof(struct ethhdr) - 2);
if (eth_hdr->h_proto == cpu_to_be16(ETH_P_AARP) ||
eth_hdr->h_proto == cpu_to_be16(ETH_P_IPX))
ether_addr_copy(skb_push(skb, ETH_ALEN), bridge_tunnel_header);
else if (be16_to_cpu(eth_hdr->h_proto) >= ETH_P_802_3_MIN)
ether_addr_copy(skb_push(skb, ETH_ALEN), rfc1042_header);
else
skb_pull(skb, 2);
if (ieee80211_has_order(hdr.frame_control))
memcpy(skb_push(skb, IEEE80211_HT_CTL_LEN), &rxd[11],
IEEE80211_HT_CTL_LEN);
if (ieee80211_is_data_qos(hdr.frame_control)) {
__le16 qos_ctrl;
qos_ctrl = cpu_to_le16(le32_get_bits(rxd[10], MT_RXD10_QOS_CTL));
memcpy(skb_push(skb, IEEE80211_QOS_CTL_LEN), &qos_ctrl,
IEEE80211_QOS_CTL_LEN);
}
if (ieee80211_has_a4(hdr.frame_control))
memcpy(skb_push(skb, sizeof(hdr)), &hdr, sizeof(hdr));
else
memcpy(skb_push(skb, sizeof(hdr) - 6), &hdr, sizeof(hdr) - 6);
return 0;
}
static int
mt7996_mac_fill_rx_rate(struct mt7996_dev *dev,
struct mt76_rx_status *status,
struct ieee80211_supported_band *sband,
__le32 *rxv, u8 *mode)
{
u32 v0, v2;
u8 stbc, gi, bw, dcm, nss;
int i, idx;
bool cck = false;
v0 = le32_to_cpu(rxv[0]);
v2 = le32_to_cpu(rxv[2]);
idx = FIELD_GET(MT_PRXV_TX_RATE, v0);
i = idx;
nss = FIELD_GET(MT_PRXV_NSTS, v0) + 1;
stbc = FIELD_GET(MT_PRXV_HT_STBC, v2);
gi = FIELD_GET(MT_PRXV_HT_SHORT_GI, v2);
*mode = FIELD_GET(MT_PRXV_TX_MODE, v2);
dcm = FIELD_GET(MT_PRXV_DCM, v2);
bw = FIELD_GET(MT_PRXV_FRAME_MODE, v2);
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 (gi)
status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
if (i > 31)
return -EINVAL;
break;
case MT_PHY_TYPE_VHT:
status->nss = nss;
status->encoding = RX_ENC_VHT;
if (gi)
status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
if (i > 11)
return -EINVAL;
break;
case MT_PHY_TYPE_HE_MU:
case MT_PHY_TYPE_HE_SU:
case MT_PHY_TYPE_HE_EXT_SU:
case MT_PHY_TYPE_HE_TB:
status->nss = nss;
status->encoding = RX_ENC_HE;
i &= GENMASK(3, 0);
if (gi <= NL80211_RATE_INFO_HE_GI_3_2)
status->he_gi = gi;
status->he_dcm = dcm;
break;
case MT_PHY_TYPE_EHT_SU:
case MT_PHY_TYPE_EHT_TRIG:
case MT_PHY_TYPE_EHT_MU:
status->nss = nss;
status->encoding = RX_ENC_EHT;
i &= GENMASK(3, 0);
if (gi <= NL80211_RATE_INFO_EHT_GI_3_2)
status->eht.gi = gi;
break;
default:
return -EINVAL;
}
status->rate_idx = i;
switch (bw) {
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;
case IEEE80211_STA_RX_BW_320:
case IEEE80211_STA_RX_BW_320 + 1:
status->bw = RATE_INFO_BW_320;
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;
return 0;
}
static void
mt7996_wed_check_ppe(struct mt7996_dev *dev, struct mt76_queue *q,
struct mt7996_sta *msta, struct sk_buff *skb,
u32 info)
{
struct ieee80211_vif *vif;
struct wireless_dev *wdev;
if (!msta || !msta->vif)
return;
if (!mt76_queue_is_wed_rx(q))
return;
if (!(info & MT_DMA_INFO_PPE_VLD))
return;
vif = container_of((void *)msta->vif, struct ieee80211_vif,
drv_priv);
wdev = ieee80211_vif_to_wdev(vif);
skb->dev = wdev->netdev;
mtk_wed_device_ppe_check(&dev->mt76.mmio.wed, skb,
FIELD_GET(MT_DMA_PPE_CPU_REASON, info),
FIELD_GET(MT_DMA_PPE_ENTRY, info));
}
static int
mt7996_mac_fill_rx(struct mt7996_dev *dev, enum mt76_rxq_id q,
struct sk_buff *skb, u32 *info)
{
struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb;
struct mt76_phy *mphy = &dev->mt76.phy;
struct mt7996_phy *phy = &dev->phy;
struct ieee80211_supported_band *sband;
__le32 *rxd = (__le32 *)skb->data;
__le32 *rxv = NULL;
u32 rxd0 = le32_to_cpu(rxd[0]);
u32 rxd1 = le32_to_cpu(rxd[1]);
u32 rxd2 = le32_to_cpu(rxd[2]);
u32 rxd3 = le32_to_cpu(rxd[3]);
u32 rxd4 = le32_to_cpu(rxd[4]);
u32 csum_mask = MT_RXD3_NORMAL_IP_SUM | MT_RXD3_NORMAL_UDP_TCP_SUM;
u32 csum_status = *(u32 *)skb->cb;
u32 mesh_mask = MT_RXD0_MESH | MT_RXD0_MHCP;
bool is_mesh = (rxd0 & mesh_mask) == mesh_mask;
bool unicast, insert_ccmp_hdr = false;
u8 remove_pad, amsdu_info, band_idx;
u8 mode = 0, qos_ctl = 0;
bool hdr_trans;
u16 hdr_gap;
u16 seq_ctrl = 0;
__le16 fc = 0;
int idx;
u8 hw_aggr = false;
struct mt7996_sta *msta = NULL;
hw_aggr = status->aggr;
memset(status, 0, sizeof(*status));
band_idx = FIELD_GET(MT_RXD1_NORMAL_BAND_IDX, rxd1);
mphy = dev->mt76.phys[band_idx];
phy = mphy->priv;
status->phy_idx = mphy->band_idx;
if (!test_bit(MT76_STATE_RUNNING, &mphy->state))
return -EINVAL;
if (rxd2 & MT_RXD2_NORMAL_AMSDU_ERR)
return -EINVAL;
hdr_trans = rxd2 & MT_RXD2_NORMAL_HDR_TRANS;
if (hdr_trans && (rxd1 & MT_RXD1_NORMAL_CM))
return -EINVAL;
if (rxd1 & MT_RXD1_NORMAL_ICV_ERR)
status->flag |= RX_FLAG_ONLY_MONITOR;
unicast = FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) == MT_RXD3_NORMAL_U2M;
idx = FIELD_GET(MT_RXD1_NORMAL_WLAN_IDX, rxd1);
status->wcid = mt7996_rx_get_wcid(dev, idx, band_idx);
if (status->wcid) {
struct mt7996_sta_link *msta_link;
msta_link = container_of(status->wcid, struct mt7996_sta_link,
wcid);
msta = msta_link->sta;
mt76_wcid_add_poll(&dev->mt76, &msta_link->wcid);
}
status->freq = mphy->chandef.chan->center_freq;
status->band = mphy->chandef.chan->band;
if (status->band == NL80211_BAND_5GHZ)
sband = &mphy->sband_5g.sband;
else if (status->band == NL80211_BAND_6GHZ)
sband = &mphy->sband_6g.sband;
else
sband = &mphy->sband_2g.sband;
if (!sband->channels)
return -EINVAL;
if ((rxd3 & csum_mask) == csum_mask &&
!(csum_status & (BIT(0) | BIT(2) | BIT(3))))
skb->ip_summed = CHECKSUM_UNNECESSARY;
if (rxd1 & MT_RXD3_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_RXD2_NORMAL_SEC_MODE, rxd2) != 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;
}
remove_pad = FIELD_GET(MT_RXD2_NORMAL_HDR_OFFSET, rxd2);
if (rxd2 & MT_RXD2_NORMAL_MAX_LEN_ERROR)
return -EINVAL;
rxd += 8;
if (rxd1 & MT_RXD1_NORMAL_GROUP_4) {
u32 v0 = le32_to_cpu(rxd[0]);
u32 v2 = le32_to_cpu(rxd[2]);
fc = cpu_to_le16(FIELD_GET(MT_RXD8_FRAME_CONTROL, v0));
qos_ctl = FIELD_GET(MT_RXD10_QOS_CTL, v2);
seq_ctrl = FIELD_GET(MT_RXD10_SEQ_CTRL, v2);
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) {
switch (FIELD_GET(MT_RXD2_NORMAL_SEC_MODE, rxd2)) {
case MT_CIPHER_AES_CCMP:
case MT_CIPHER_CCMP_CCX:
case MT_CIPHER_CCMP_256:
insert_ccmp_hdr =
FIELD_GET(MT_RXD2_NORMAL_FRAG, rxd2);
fallthrough;
case MT_CIPHER_TKIP:
case MT_CIPHER_TKIP_NO_MIC:
case MT_CIPHER_GCMP:
case MT_CIPHER_GCMP_256:
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];
break;
default:
break;
}
}
rxd += 4;
if ((u8 *)rxd - skb->data >= skb->len)
return -EINVAL;
}
if (rxd1 & MT_RXD1_NORMAL_GROUP_2) {
status->timestamp = le32_to_cpu(rxd[0]);
status->flag |= RX_FLAG_MACTIME_START;
if (!(rxd2 & MT_RXD2_NORMAL_NON_AMPDU)) {
status->flag |= RX_FLAG_AMPDU_DETAILS;
if (phy->rx_ampdu_ts != status->timestamp) {
if (!++phy->ampdu_ref)
phy->ampdu_ref++;
}
phy->rx_ampdu_ts = status->timestamp;
status->ampdu_ref = phy->ampdu_ref;
}
rxd += 4;
if ((u8 *)rxd - skb->data >= skb->len)
return -EINVAL;
}
if (rxd1 & MT_RXD1_NORMAL_GROUP_3) {
u32 v3;
int ret;
rxv = rxd;
rxd += 4;
if ((u8 *)rxd - skb->data >= skb->len)
return -EINVAL;
v3 = le32_to_cpu(rxv[3]);
status->chains = mphy->antenna_mask;
status->chain_signal[0] = to_rssi(MT_PRXV_RCPI0, v3);
status->chain_signal[1] = to_rssi(MT_PRXV_RCPI1, v3);
status->chain_signal[2] = to_rssi(MT_PRXV_RCPI2, v3);
status->chain_signal[3] = to_rssi(MT_PRXV_RCPI3, v3);
if (rxd1 & MT_RXD1_NORMAL_GROUP_5) {
rxd += 24;
if ((u8 *)rxd - skb->data >= skb->len)
return -EINVAL;
}
ret = mt7996_mac_fill_rx_rate(dev, status, sband, rxv, &mode);
if (ret < 0)
return ret;
}
amsdu_info = FIELD_GET(MT_RXD4_NORMAL_PAYLOAD_FORMAT, rxd4);
status->amsdu = !!amsdu_info;
if (status->amsdu) {
status->first_amsdu = amsdu_info == MT_RXD4_FIRST_AMSDU_FRAME;
status->last_amsdu = amsdu_info == MT_RXD4_LAST_AMSDU_FRAME;
}
if ((ieee80211_has_morefrags(fc) || seq_ctrl & IEEE80211_SCTL_FRAG) &&
FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) != MT_RXD3_NORMAL_U2M)
return -EINVAL;
hdr_gap = (u8 *)rxd - skb->data + 2 * remove_pad;
if (hdr_trans && ieee80211_has_morefrags(fc)) {
if (mt7996_reverse_frag0_hdr_trans(skb, hdr_gap))
return -EINVAL;
hdr_trans = false;
} else {
int pad_start = 0;
skb_pull(skb, hdr_gap);
if (!hdr_trans && status->amsdu && !(ieee80211_has_a4(fc) && is_mesh)) {
pad_start = ieee80211_get_hdrlen_from_skb(skb);
} else if (hdr_trans && (rxd2 & MT_RXD2_NORMAL_HDR_TRANS_ERROR)) {
pad_start = 12;
if (get_unaligned_be16(skb->data + pad_start) == ETH_P_8021Q)
pad_start += 4;
else
pad_start = 0;
}
if (pad_start) {
memmove(skb->data + 2, skb->data, pad_start);
skb_pull(skb, 2);
}
}
if (!hdr_trans) {
struct ieee80211_hdr *hdr;
if (insert_ccmp_hdr) {
u8 key_id = FIELD_GET(MT_RXD1_NORMAL_KEY_ID, rxd1);
mt76_insert_ccmp_hdr(skb, key_id);
}
hdr = mt76_skb_get_hdr(skb);
fc = hdr->frame_control;
if (ieee80211_is_data_qos(fc)) {
u8 *qos = ieee80211_get_qos_ctl(hdr);
seq_ctrl = le16_to_cpu(hdr->seq_ctrl);
qos_ctl = *qos;
if (ieee80211_has_a4(fc) && is_mesh && status->amsdu)
*qos &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT;
}
skb_set_mac_header(skb, (unsigned char *)hdr - skb->data);
} else {
status->flag |= RX_FLAG_8023;
mt7996_wed_check_ppe(dev, &dev->mt76.q_rx[q], msta, skb,
*info);
mt76_npu_check_ppe(&dev->mt76, skb, *info);
}
if (rxv && !(status->flag & RX_FLAG_8023)) {
switch (status->encoding) {
case RX_ENC_EHT:
mt76_connac3_mac_decode_eht_radiotap(skb, rxv, mode);
break;
case RX_ENC_HE:
mt76_connac3_mac_decode_he_radiotap(skb, rxv, mode);
break;
default:
break;
}
}
if (!status->wcid || !ieee80211_is_data_qos(fc) || hw_aggr)
return 0;
status->aggr = unicast &&
!ieee80211_is_qos_nullfunc(fc);
status->qos_ctl = qos_ctl;
status->seqno = IEEE80211_SEQ_TO_SN(seq_ctrl);
return 0;
}
static void
mt7996_mac_write_txwi_8023(struct mt7996_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;
u16 ethertype;
bool wmm = false;
u32 val;
if (wcid->sta) {
struct ieee80211_sta *sta = wcid_to_sta(wcid);
wmm = sta->wme;
}
val = FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_3) |
FIELD_PREP(MT_TXD1_TID, tid);
ethertype = get_unaligned_be16(&skb->data[12]);
if (ethertype >= 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);
if (wcid->amsdu)
txwi[3] |= cpu_to_le32(MT_TXD3_HW_AMSDU);
}
static void
mt7996_mac_write_txwi_80211(struct mt7996_dev *dev, __le32 *txwi,
struct sk_buff *skb,
struct ieee80211_key_conf *key,
struct mt76_wcid *wcid)
{
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, sc = hdr->seq_ctrl;
u16 seqno = le16_to_cpu(sc);
bool hw_bigtk = false;
u8 fc_type, fc_stype;
u32 val;
if (ieee80211_is_action(fc) &&
skb->len >= IEEE80211_MIN_ACTION_SIZE + 1 &&
mgmt->u.action.category == WLAN_CATEGORY_BACK &&
mgmt->u.action.u.addba_req.action_code == WLAN_ACTION_ADDBA_REQ) {
if (is_mt7990(&dev->mt76))
txwi[6] |= cpu_to_le32(FIELD_PREP(MT_TXD6_TID_ADDBA, tid));
else
txwi[7] |= cpu_to_le32(MT_TXD7_MAC_TXD);
tid = MT_TX_ADDBA;
} else if (ieee80211_is_mgmt(hdr->frame_control)) {
tid = MT_TX_NORMAL;
}
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);
if (!ieee80211_is_data(fc) || multicast ||
info->flags & IEEE80211_TX_CTL_USE_MINRATE)
val |= MT_TXD1_FIXED_RATE;
if (is_mt7990(&dev->mt76) && ieee80211_is_beacon(fc) &&
(wcid->hw_key_idx2 == 6 || wcid->hw_key_idx2 == 7))
hw_bigtk = true;
if ((key && multicast && ieee80211_is_robust_mgmt_frame(skb)) || hw_bigtk) {
val |= MT_TXD1_BIP;
txwi[3] &= ~cpu_to_le32(MT_TXD3_PROTECT_FRAME);
}
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);
if (ieee80211_has_morefrags(fc) && ieee80211_is_first_frag(sc))
val |= FIELD_PREP(MT_TXD2_FRAG, MT_TX_FRAG_FIRST);
else if (ieee80211_has_morefrags(fc) && !ieee80211_is_first_frag(sc))
val |= FIELD_PREP(MT_TXD2_FRAG, MT_TX_FRAG_MID);
else if (!ieee80211_has_morefrags(fc) && !ieee80211_is_first_frag(sc))
val |= FIELD_PREP(MT_TXD2_FRAG, MT_TX_FRAG_LAST);
else
val |= FIELD_PREP(MT_TXD2_FRAG, MT_TX_FRAG_NONE);
txwi[2] |= cpu_to_le32(val);
txwi[3] |= cpu_to_le32(FIELD_PREP(MT_TXD3_BCM, multicast));
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 (multicast && ieee80211_vif_is_mld(info->control.vif)) {
val = MT_TXD3_SN_VALID |
FIELD_PREP(MT_TXD3_SEQ, IEEE80211_SEQ_TO_SN(seqno));
txwi[3] |= cpu_to_le32(val);
}
if (info->flags & IEEE80211_TX_CTL_INJECTED) {
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);
txwi[3] &= ~cpu_to_le32(MT_TXD3_HW_AMSDU);
}
if (ieee80211_vif_is_mld(info->control.vif) &&
(multicast || unlikely(skb->protocol == cpu_to_be16(ETH_P_PAE))))
txwi[5] |= cpu_to_le32(MT_TXD5_FL);
if (ieee80211_is_nullfunc(fc) && ieee80211_has_a4(fc) &&
ieee80211_vif_is_mld(info->control.vif)) {
txwi[5] |= cpu_to_le32(MT_TXD5_FL);
txwi[6] |= cpu_to_le32(MT_TXD6_DIS_MAT);
}
if (!wcid->sta && ieee80211_is_mgmt(fc))
txwi[6] |= cpu_to_le32(MT_TXD6_DIS_MAT);
}
void mt7996_mac_write_txwi(struct mt7996_dev *dev, __le32 *txwi,
struct sk_buff *skb, struct mt76_wcid *wcid,
struct ieee80211_key_conf *key, int pid,
enum mt76_txq_id qid, u32 changed)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_vif *vif = info->control.vif;
u8 band_idx = (info->hw_queue & MT_TX_HW_QUEUE_PHY) >> 2;
u8 p_fmt, q_idx, omac_idx = 0, wmm_idx = 0;
bool is_8023 = info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP;
struct mt76_vif_link *mlink = NULL;
struct mt7996_vif *mvif;
unsigned int link_id;
u16 tx_count = 15;
u32 val;
bool inband_disc = !!(changed & (BSS_CHANGED_UNSOL_BCAST_PROBE_RESP |
BSS_CHANGED_FILS_DISCOVERY));
bool beacon = !!(changed & (BSS_CHANGED_BEACON |
BSS_CHANGED_BEACON_ENABLED)) && (!inband_disc);
if (wcid != &dev->mt76.global_wcid)
link_id = wcid->link_id;
else
link_id = u32_get_bits(info->control.flags,
IEEE80211_TX_CTRL_MLO_LINK);
mvif = vif ? (struct mt7996_vif *)vif->drv_priv : NULL;
if (mvif) {
if (wcid->offchannel)
mlink = rcu_dereference(mvif->mt76.offchannel_link);
if (!mlink)
mlink = rcu_dereference(mvif->mt76.link[link_id]);
}
if (mlink) {
omac_idx = mlink->omac_idx;
wmm_idx = mlink->wmm_idx;
band_idx = mlink->band_idx;
}
if (inband_disc) {
p_fmt = MT_TX_TYPE_FW;
q_idx = MT_LMAC_ALTX0;
} else if (beacon) {
p_fmt = MT_TX_TYPE_FW;
q_idx = MT_LMAC_BCN0;
} else if (qid >= 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 * MT7996_MAX_WMM_SETS +
mt76_connac_lmac_mapping(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 = FIELD_PREP(MT_TXD1_WLAN_IDX, wcid->idx) |
FIELD_PREP(MT_TXD1_OWN_MAC, omac_idx);
if (band_idx)
val |= FIELD_PREP(MT_TXD1_TGID, band_idx);
txwi[1] = cpu_to_le32(val);
txwi[2] = 0;
val = MT_TXD3_SW_POWER_MGMT |
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;
val = FIELD_PREP(MT_TXD5_PID, pid);
if (pid >= MT_PACKET_ID_FIRST)
val |= MT_TXD5_TX_STATUS_HOST;
txwi[5] = cpu_to_le32(val);
val = MT_TXD6_DAS | MT_TXD6_VTA;
if ((q_idx >= MT_LMAC_ALTX0 && q_idx <= MT_LMAC_BCN0) ||
skb->protocol == cpu_to_be16(ETH_P_PAE))
val |= MT_TXD6_DIS_MAT;
if (is_mt7996(&dev->mt76))
val |= FIELD_PREP(MT_TXD6_MSDU_CNT, 1);
else if (is_8023 || !ieee80211_is_mgmt(hdr->frame_control))
val |= FIELD_PREP(MT_TXD6_MSDU_CNT_V2, 1);
txwi[6] = cpu_to_le32(val);
txwi[7] = 0;
if (is_8023)
mt7996_mac_write_txwi_8023(dev, txwi, skb, wcid);
else
mt7996_mac_write_txwi_80211(dev, txwi, skb, key, wcid);
if (txwi[1] & cpu_to_le32(MT_TXD1_FIXED_RATE)) {
bool mcast = ieee80211_is_data(hdr->frame_control) &&
is_multicast_ether_addr(hdr->addr1);
u8 idx = MT7996_BASIC_RATES_TBL;
if (mlink) {
if (mcast && mlink->mcast_rates_idx)
idx = mlink->mcast_rates_idx;
else if (beacon && mlink->beacon_rates_idx)
idx = mlink->beacon_rates_idx;
else
idx = mlink->basic_rates_idx;
}
val = FIELD_PREP(MT_TXD6_TX_RATE, idx) | MT_TXD6_FIXED_BW;
if (mcast)
val |= MT_TXD6_DIS_MAT;
txwi[6] |= cpu_to_le32(val);
txwi[3] |= cpu_to_le32(MT_TXD3_BA_DISABLE);
}
}
static bool
mt7996_tx_use_mgmt(struct mt7996_dev *dev, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
if (ieee80211_is_mgmt(hdr->frame_control))
return true;
if (!mt7996_has_wa(dev)) {
if (unlikely(skb->protocol == cpu_to_be16(ETH_P_PAE)))
return true;
if (ieee80211_has_a4(hdr->frame_control) &&
!ieee80211_is_data_present(hdr->frame_control))
return true;
}
return false;
}
int mt7996_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 ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx_info->skb->data;
struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb);
struct ieee80211_key_conf *key = info->control.hw_key;
struct ieee80211_vif *vif = info->control.vif;
struct mt7996_vif *mvif = vif ? (struct mt7996_vif *)vif->drv_priv : NULL;
struct mt7996_sta *msta = sta ? (struct mt7996_sta *)sta->drv_priv : NULL;
struct mt76_vif_link *mlink = NULL;
struct mt76_txwi_cache *t;
int id, i, pid, nbuf = tx_info->nbuf - 1;
bool is_8023 = info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP;
__le32 *ptr = (__le32 *)txwi_ptr;
u8 *txwi = (u8 *)txwi_ptr;
u8 link_id;
if (unlikely(tx_info->skb->len <= ETH_HLEN))
return -EINVAL;
if (!wcid)
wcid = &dev->mt76.global_wcid;
if ((is_8023 || ieee80211_is_data_qos(hdr->frame_control)) && sta->mlo &&
likely(tx_info->skb->protocol != cpu_to_be16(ETH_P_PAE))) {
u8 tid = tx_info->skb->priority & IEEE80211_QOS_CTL_TID_MASK;
link_id = (tid % 2) ? msta->seclink_id : msta->deflink_id;
} else {
link_id = u32_get_bits(info->control.flags,
IEEE80211_TX_CTRL_MLO_LINK);
}
if (link_id != wcid->link_id && link_id != IEEE80211_LINK_UNSPECIFIED) {
if (msta) {
struct mt7996_sta_link *msta_link =
rcu_dereference(msta->link[link_id]);
if (msta_link)
wcid = &msta_link->wcid;
} else if (mvif) {
mlink = rcu_dereference(mvif->mt76.link[link_id]);
if (mlink && mlink->wcid)
wcid = mlink->wcid;
}
}
t = (struct mt76_txwi_cache *)(txwi + mdev->drv->txwi_size);
t->skb = tx_info->skb;
id = mt76_token_consume(mdev, &t);
if (id < 0)
return id;
if (tx_info->skb->protocol == cpu_to_be16(ETH_P_PAE) && sta->mlo) {
struct ieee80211_hdr *hdr = (void *)tx_info->skb->data;
struct ieee80211_bss_conf *link_conf;
struct ieee80211_link_sta *link_sta;
link_conf = rcu_dereference(vif->link_conf[wcid->link_id]);
if (!link_conf)
return -EINVAL;
link_sta = rcu_dereference(sta->link[wcid->link_id]);
if (!link_sta)
return -EINVAL;
dma_sync_single_for_cpu(mdev->dma_dev, tx_info->buf[1].addr,
tx_info->buf[1].len, DMA_TO_DEVICE);
memcpy(hdr->addr1, link_sta->addr, ETH_ALEN);
memcpy(hdr->addr2, link_conf->addr, ETH_ALEN);
if (ieee80211_has_a4(hdr->frame_control)) {
memcpy(hdr->addr3, sta->addr, ETH_ALEN);
memcpy(hdr->addr4, vif->addr, ETH_ALEN);
} else if (ieee80211_has_tods(hdr->frame_control)) {
memcpy(hdr->addr3, sta->addr, ETH_ALEN);
} else if (ieee80211_has_fromds(hdr->frame_control)) {
memcpy(hdr->addr3, vif->addr, ETH_ALEN);
}
dma_sync_single_for_device(mdev->dma_dev, tx_info->buf[1].addr,
tx_info->buf[1].len, DMA_TO_DEVICE);
}
pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb);
memset(txwi_ptr, 0, MT_TXD_SIZE);
if (!is_8023 || pid >= MT_PACKET_ID_FIRST)
mt7996_mac_write_txwi(dev, txwi_ptr, tx_info->skb, wcid, key,
pid, qid, 0);
if (le32_to_cpu(ptr[7]) & MT_TXD7_MAC_TXD) {
u32 val;
ptr = (__le32 *)(txwi + MT_TXD_SIZE);
memset((void *)ptr, 0, sizeof(struct mt76_connac_fw_txp));
val = FIELD_PREP(MT_TXP0_TOKEN_ID0, id) |
MT_TXP0_TOKEN_ID0_VALID_MASK;
ptr[0] = cpu_to_le32(val);
val = FIELD_PREP(MT_TXP1_TID_ADDBA,
tx_info->skb->priority &
IEEE80211_QOS_CTL_TID_MASK);
ptr[1] = cpu_to_le32(val);
ptr[2] = cpu_to_le32(tx_info->buf[1].addr & 0xFFFFFFFF);
val = FIELD_PREP(MT_TXP_BUF_LEN, tx_info->buf[1].len) |
MT_TXP3_ML0_MASK;
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
val |= FIELD_PREP(MT_TXP3_DMA_ADDR_H,
tx_info->buf[1].addr >> 32);
#endif
ptr[3] = cpu_to_le32(val);
} else {
struct mt76_connac_txp_common *txp;
txp = (struct mt76_connac_txp_common *)(txwi + MT_TXD_SIZE);
for (i = 0; i < nbuf; i++) {
u16 len;
len = FIELD_PREP(MT_TXP_BUF_LEN, tx_info->buf[i + 1].len);
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
len |= FIELD_PREP(MT_TXP_DMA_ADDR_H,
tx_info->buf[i + 1].addr >> 32);
#endif
txp->fw.buf[i] = cpu_to_le32(tx_info->buf[i + 1].addr);
txp->fw.len[i] = cpu_to_le16(len);
}
txp->fw.nbuf = nbuf;
txp->fw.flags = cpu_to_le16(MT_CT_INFO_FROM_HOST);
if (!is_8023 || pid >= MT_PACKET_ID_FIRST)
txp->fw.flags |= cpu_to_le16(MT_CT_INFO_APPLY_TXD);
if (!key)
txp->fw.flags |= cpu_to_le16(MT_CT_INFO_NONE_CIPHER_FRAME);
if (!is_8023 && mt7996_tx_use_mgmt(dev, tx_info->skb))
txp->fw.flags |= cpu_to_le16(MT_CT_INFO_MGMT_FRAME);
if (mvif) {
if (wcid->offchannel)
mlink = rcu_dereference(mvif->mt76.offchannel_link);
if (!mlink)
mlink = rcu_dereference(mvif->mt76.link[wcid->link_id]);
txp->fw.bss_idx = mlink ? mlink->idx : mvif->deflink.mt76.idx;
}
txp->fw.token = cpu_to_le16(id);
txp->fw.rept_wds_wcid = cpu_to_le16(sta ? wcid->idx : 0xfff);
}
tx_info->skb = NULL;
tx_info->buf[1].len = MT_CT_PARSE_LEN;
tx_info->buf[1].skip_unmap = true;
tx_info->nbuf = MT_CT_DMA_BUF_NUM;
return 0;
}
u32 mt7996_wed_init_buf(void *ptr, dma_addr_t phys, int token_id)
{
struct mt76_connac_fw_txp *txp = ptr + MT_TXD_SIZE;
__le32 *txwi = ptr;
u32 val;
memset(ptr, 0, MT_TXD_SIZE + sizeof(*txp));
val = FIELD_PREP(MT_TXD0_TX_BYTES, MT_TXD_SIZE) |
FIELD_PREP(MT_TXD0_PKT_FMT, MT_TX_TYPE_CT);
txwi[0] = cpu_to_le32(val);
val = BIT(31) |
FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_3);
txwi[1] = cpu_to_le32(val);
txp->token = cpu_to_le16(token_id);
txp->nbuf = 1;
txp->buf[0] = cpu_to_le32(phys + MT_TXD_SIZE + sizeof(*txp));
return MT_TXD_SIZE + sizeof(*txp);
}
static void
mt7996_tx_check_aggr(struct ieee80211_link_sta *link_sta,
struct mt76_wcid *wcid, struct sk_buff *skb)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
bool is_8023 = info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP;
u16 fc, tid;
if (!(link_sta->ht_cap.ht_supported || link_sta->he_cap.has_he))
return;
tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK;
if (tid >= 6)
return;
if (is_8023) {
fc = IEEE80211_FTYPE_DATA |
(link_sta->sta->wme ? IEEE80211_STYPE_QOS_DATA
: IEEE80211_STYPE_DATA);
} else {
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
fc = le16_to_cpu(hdr->frame_control) &
(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE);
}
if (unlikely(fc != (IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA)))
return;
if (!test_and_set_bit(tid, &wcid->ampdu_state))
ieee80211_start_tx_ba_session(link_sta->sta, tid, 0);
}
static void
mt7996_txwi_free(struct mt7996_dev *dev, struct mt76_txwi_cache *t,
struct ieee80211_link_sta *link_sta,
struct mt76_wcid *wcid, struct list_head *free_list)
{
struct mt76_dev *mdev = &dev->mt76;
__le32 *txwi;
u16 wcid_idx;
mt76_connac_txp_skb_unmap(mdev, t);
if (!t->skb)
goto out;
txwi = (__le32 *)mt76_get_txwi_ptr(mdev, t);
if (link_sta) {
wcid_idx = wcid->idx;
if (likely(t->skb->protocol != cpu_to_be16(ETH_P_PAE))) {
struct mt7996_sta *msta;
msta = (void *)link_sta->sta->drv_priv;
mt7996_tx_check_aggr(link_sta, &msta->deflink.wcid,
t->skb);
}
} else {
wcid_idx = le32_get_bits(txwi[9], MT_TXD9_WLAN_IDX);
}
__mt76_tx_complete_skb(mdev, wcid_idx, t->skb, free_list);
out:
t->skb = NULL;
mt76_put_txwi(mdev, t);
}
static void
mt7996_mac_tx_free(struct mt7996_dev *dev, void *data, int len)
{
__le32 *tx_free = (__le32 *)data, *cur_info;
struct mt76_dev *mdev = &dev->mt76;
struct mt76_phy *phy2 = mdev->phys[MT_BAND1];
struct mt76_phy *phy3 = mdev->phys[MT_BAND2];
struct ieee80211_link_sta *link_sta = NULL;
struct mt76_txwi_cache *txwi;
struct mt76_wcid *wcid = NULL;
LIST_HEAD(free_list);
struct sk_buff *skb, *tmp;
void *end = data + len;
bool wake = false;
u16 total, count = 0;
u8 ver;
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);
if (phy2) {
mt76_queue_tx_cleanup(dev, phy2->q_tx[MT_TXQ_PSD], false);
mt76_queue_tx_cleanup(dev, phy2->q_tx[MT_TXQ_BE], false);
}
if (phy3) {
mt76_queue_tx_cleanup(dev, phy3->q_tx[MT_TXQ_PSD], false);
mt76_queue_tx_cleanup(dev, phy3->q_tx[MT_TXQ_BE], false);
}
ver = le32_get_bits(tx_free[1], MT_TXFREE1_VER);
if (WARN_ON_ONCE(ver < 5))
return;
total = le32_get_bits(tx_free[0], MT_TXFREE0_MSDU_CNT);
for (cur_info = &tx_free[2]; count < total; cur_info++) {
u32 msdu, info;
u8 i;
if (WARN_ON_ONCE((void *)cur_info >= end))
return;
info = le32_to_cpu(*cur_info);
if (info & MT_TXFREE_INFO_PAIR) {
struct ieee80211_sta *sta;
unsigned long valid_links;
struct mt7996_sta *msta;
unsigned int id;
u16 idx;
idx = FIELD_GET(MT_TXFREE_INFO_WLAN_ID, info);
wcid = mt76_wcid_ptr(dev, idx);
sta = wcid_to_sta(wcid);
if (!sta) {
link_sta = NULL;
goto next;
}
link_sta = rcu_dereference(sta->link[wcid->link_id]);
if (!link_sta)
goto next;
msta = (struct mt7996_sta *)sta->drv_priv;
valid_links = sta->valid_links ?: BIT(0);
for_each_set_bit(id, &valid_links,
IEEE80211_MLD_MAX_NUM_LINKS) {
struct mt7996_sta_link *msta_link;
msta_link = rcu_dereference(msta->link[id]);
if (!msta_link)
continue;
mt76_wcid_add_poll(&dev->mt76,
&msta_link->wcid);
}
next:
if (ver == 7 && ((void *)(cur_info + 1) < end) &&
(le32_to_cpu(*(cur_info + 1)) & MT_TXFREE_INFO_PAIR))
cur_info++;
continue;
} else if (info & MT_TXFREE_INFO_HEADER) {
u32 tx_retries = 0, tx_failed = 0;
if (!wcid)
continue;
tx_retries =
FIELD_GET(MT_TXFREE_INFO_COUNT, info) - 1;
tx_failed = tx_retries +
!!FIELD_GET(MT_TXFREE_INFO_STAT, info);
wcid->stats.tx_retries += tx_retries;
wcid->stats.tx_failed += tx_failed;
continue;
}
for (i = 0; i < 2; i++) {
msdu = (info >> (15 * i)) & MT_TXFREE_INFO_MSDU_ID;
if (msdu == MT_TXFREE_INFO_MSDU_ID)
continue;
count++;
txwi = mt76_token_release(mdev, msdu, &wake);
if (!txwi)
continue;
mt7996_txwi_free(dev, txwi, link_sta, wcid,
&free_list);
}
}
mt7996_mac_sta_poll(dev);
if (wake)
mt76_set_tx_blocked(&dev->mt76, false);
mt76_worker_schedule(&dev->mt76.tx_worker);
list_for_each_entry_safe(skb, tmp, &free_list, list) {
skb_list_del_init(skb);
napi_consume_skb(skb, 1);
}
}
static bool
mt7996_mac_add_txs_skb(struct mt7996_dev *dev, struct mt76_wcid *wcid,
int pid, __le32 *txs_data)
{
struct mt76_sta_stats *stats = &wcid->stats;
struct ieee80211_supported_band *sband;
struct mt76_dev *mdev = &dev->mt76;
struct mt76_phy *mphy;
struct ieee80211_tx_info *info;
struct sk_buff_head list;
struct rate_info rate = {};
struct sk_buff *skb = NULL;
bool cck = false;
u32 txrate, txs, mode, stbc;
txs = le32_to_cpu(txs_data[0]);
mt76_tx_status_lock(mdev, &list);
if (le32_get_bits(txs_data[0], MT_TXS0_TXS_FORMAT) == 0) {
skb = mt76_tx_status_skb_get(mdev, wcid, pid, &list);
if (skb) {
info = IEEE80211_SKB_CB(skb);
if (!(txs & MT_TXS0_ACK_ERROR_MASK))
info->flags |= IEEE80211_TX_STAT_ACK;
info->status.ampdu_len = 1;
info->status.ampdu_ack_len =
!!(info->flags & IEEE80211_TX_STAT_ACK);
info->status.rates[0].idx = -1;
}
}
if (mtk_wed_device_active(&dev->mt76.mmio.wed) && wcid->sta) {
struct ieee80211_sta *sta;
u8 tid;
sta = wcid_to_sta(wcid);
tid = FIELD_GET(MT_TXS0_TID, txs);
ieee80211_refresh_tx_agg_session_timer(sta, tid);
}
txrate = FIELD_GET(MT_TXS0_TX_RATE, txs);
rate.mcs = FIELD_GET(MT_TX_RATE_IDX, txrate);
rate.nss = FIELD_GET(MT_TX_RATE_NSS, txrate) + 1;
stbc = le32_get_bits(txs_data[3], MT_TXS3_RATE_STBC);
if (stbc && rate.nss > 1)
rate.nss >>= 1;
if (rate.nss - 1 < ARRAY_SIZE(stats->tx_nss))
stats->tx_nss[rate.nss - 1]++;
if (rate.mcs < ARRAY_SIZE(stats->tx_mcs))
stats->tx_mcs[rate.mcs]++;
mode = FIELD_GET(MT_TX_RATE_MODE, txrate);
switch (mode) {
case MT_PHY_TYPE_CCK:
cck = true;
fallthrough;
case MT_PHY_TYPE_OFDM:
mphy = mt76_dev_phy(mdev, wcid->phy_idx);
if (mphy->chandef.chan->band == NL80211_BAND_5GHZ)
sband = &mphy->sband_5g.sband;
else if (mphy->chandef.chan->band == NL80211_BAND_6GHZ)
sband = &mphy->sband_6g.sband;
else
sband = &mphy->sband_2g.sband;
rate.mcs = mt76_get_rate(mphy->dev, sband, rate.mcs, cck);
rate.legacy = sband->bitrates[rate.mcs].bitrate;
break;
case MT_PHY_TYPE_HT:
case MT_PHY_TYPE_HT_GF:
if (rate.mcs > 31)
goto out;
rate.flags = RATE_INFO_FLAGS_MCS;
if (wcid->rate.flags & RATE_INFO_FLAGS_SHORT_GI)
rate.flags |= RATE_INFO_FLAGS_SHORT_GI;
break;
case MT_PHY_TYPE_VHT:
if (rate.mcs > 9)
goto out;
rate.flags = RATE_INFO_FLAGS_VHT_MCS;
if (wcid->rate.flags & RATE_INFO_FLAGS_SHORT_GI)
rate.flags |= RATE_INFO_FLAGS_SHORT_GI;
break;
case MT_PHY_TYPE_HE_SU:
case MT_PHY_TYPE_HE_EXT_SU:
case MT_PHY_TYPE_HE_TB:
case MT_PHY_TYPE_HE_MU:
if (rate.mcs > 11)
goto out;
rate.he_gi = wcid->rate.he_gi;
rate.he_dcm = FIELD_GET(MT_TX_RATE_DCM, txrate);
rate.flags = RATE_INFO_FLAGS_HE_MCS;
break;
case MT_PHY_TYPE_EHT_SU:
case MT_PHY_TYPE_EHT_TRIG:
case MT_PHY_TYPE_EHT_MU:
if (rate.mcs > 13)
goto out;
rate.eht_gi = wcid->rate.eht_gi;
rate.flags = RATE_INFO_FLAGS_EHT_MCS;
break;
default:
goto out;
}
stats->tx_mode[mode]++;
switch (FIELD_GET(MT_TXS0_BW, txs)) {
case IEEE80211_STA_RX_BW_320:
rate.bw = RATE_INFO_BW_320;
stats->tx_bw[4]++;
break;
case IEEE80211_STA_RX_BW_160:
rate.bw = RATE_INFO_BW_160;
stats->tx_bw[3]++;
break;
case IEEE80211_STA_RX_BW_80:
rate.bw = RATE_INFO_BW_80;
stats->tx_bw[2]++;
break;
case IEEE80211_STA_RX_BW_40:
rate.bw = RATE_INFO_BW_40;
stats->tx_bw[1]++;
break;
default:
rate.bw = RATE_INFO_BW_20;
stats->tx_bw[0]++;
break;
}
wcid->rate = rate;
out:
if (skb)
mt76_tx_status_skb_done(mdev, skb, &list);
mt76_tx_status_unlock(mdev, &list);
return !!skb;
}
static void mt7996_mac_add_txs(struct mt7996_dev *dev, void *data)
{
struct mt7996_sta_link *msta_link;
struct mt76_wcid *wcid;
__le32 *txs_data = data;
u16 wcidx;
u8 pid;
wcidx = le32_get_bits(txs_data[2], MT_TXS2_WCID);
pid = le32_get_bits(txs_data[3], MT_TXS3_PID);
if (pid < MT_PACKET_ID_NO_SKB)
return;
rcu_read_lock();
wcid = mt76_wcid_ptr(dev, wcidx);
if (!wcid)
goto out;
mt7996_mac_add_txs_skb(dev, wcid, pid, txs_data);
if (!wcid->sta)
goto out;
msta_link = container_of(wcid, struct mt7996_sta_link, wcid);
mt76_wcid_add_poll(&dev->mt76, &msta_link->wcid);
out:
rcu_read_unlock();
}
bool mt7996_rx_check(struct mt76_dev *mdev, void *data, int len)
{
struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
__le32 *rxd = (__le32 *)data;
__le32 *end = (__le32 *)&rxd[len / 4];
enum rx_pkt_type type;
type = le32_get_bits(rxd[0], MT_RXD0_PKT_TYPE);
if (type != PKT_TYPE_NORMAL) {
u32 sw_type = le32_get_bits(rxd[0], MT_RXD0_SW_PKT_TYPE_MASK);
if (unlikely((sw_type & MT_RXD0_SW_PKT_TYPE_MAP) ==
MT_RXD0_SW_PKT_TYPE_FRAME))
return true;
}
switch (type) {
case PKT_TYPE_TXRX_NOTIFY:
mt7996_mac_tx_free(dev, data, len);
return false;
case PKT_TYPE_TXS:
for (rxd += MT_TXS_HDR_SIZE; rxd + MT_TXS_SIZE <= end; rxd += MT_TXS_SIZE)
mt7996_mac_add_txs(dev, rxd);
return false;
case PKT_TYPE_RX_FW_MONITOR:
mt7996_debugfs_rx_fw_monitor(dev, data, len);
return false;
default:
return true;
}
}
void mt7996_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
struct sk_buff *skb, u32 *info)
{
struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
__le32 *rxd = (__le32 *)skb->data;
__le32 *end = (__le32 *)&skb->data[skb->len];
enum rx_pkt_type type;
type = le32_get_bits(rxd[0], MT_RXD0_PKT_TYPE);
if (type != PKT_TYPE_NORMAL) {
u32 sw_type = le32_get_bits(rxd[0], MT_RXD0_SW_PKT_TYPE_MASK);
if (unlikely((sw_type & MT_RXD0_SW_PKT_TYPE_MAP) ==
MT_RXD0_SW_PKT_TYPE_FRAME))
type = PKT_TYPE_NORMAL;
}
switch (type) {
case PKT_TYPE_TXRX_NOTIFY:
if (mtk_wed_device_active(&dev->mt76.mmio.wed_hif2) &&
q == MT_RXQ_TXFREE_BAND2) {
dev_kfree_skb(skb);
break;
}
mt7996_mac_tx_free(dev, skb->data, skb->len);
napi_consume_skb(skb, 1);
break;
case PKT_TYPE_RX_EVENT:
mt7996_mcu_rx_event(dev, skb);
break;
case PKT_TYPE_TXS:
for (rxd += MT_TXS_HDR_SIZE; rxd + MT_TXS_SIZE <= end; rxd += MT_TXS_SIZE)
mt7996_mac_add_txs(dev, rxd);
dev_kfree_skb(skb);
break;
case PKT_TYPE_RX_FW_MONITOR:
mt7996_debugfs_rx_fw_monitor(dev, skb->data, skb->len);
dev_kfree_skb(skb);
break;
case PKT_TYPE_NORMAL:
if (!mt7996_mac_fill_rx(dev, q, skb, info)) {
mt76_rx(&dev->mt76, q, skb);
return;
}
fallthrough;
default:
dev_kfree_skb(skb);
break;
}
}
static struct mt7996_msdu_page *
mt7996_msdu_page_get_from_cache(struct mt7996_dev *dev)
{
struct mt7996_msdu_page *p = NULL;
spin_lock(&dev->wed_rro.lock);
if (!list_empty(&dev->wed_rro.page_cache)) {
p = list_first_entry(&dev->wed_rro.page_cache,
struct mt7996_msdu_page, list);
list_del(&p->list);
}
spin_unlock(&dev->wed_rro.lock);
return p;
}
static struct mt7996_msdu_page *mt7996_msdu_page_get(struct mt7996_dev *dev)
{
struct mt7996_msdu_page *p;
p = mt7996_msdu_page_get_from_cache(dev);
if (!p) {
p = kzalloc(L1_CACHE_ALIGN(sizeof(*p)), GFP_ATOMIC);
if (p)
INIT_LIST_HEAD(&p->list);
}
return p;
}
static void mt7996_msdu_page_put_to_cache(struct mt7996_dev *dev,
struct mt7996_msdu_page *p)
{
if (p->buf) {
mt76_put_page_pool_buf(p->buf, false);
p->buf = NULL;
}
spin_lock(&dev->wed_rro.lock);
list_add(&p->list, &dev->wed_rro.page_cache);
spin_unlock(&dev->wed_rro.lock);
}
static void mt7996_msdu_page_free_cache(struct mt7996_dev *dev)
{
while (true) {
struct mt7996_msdu_page *p;
p = mt7996_msdu_page_get_from_cache(dev);
if (!p)
break;
if (p->buf)
mt76_put_page_pool_buf(p->buf, false);
kfree(p);
}
}
static u32 mt7996_msdu_page_hash_from_addr(dma_addr_t dma_addr)
{
u32 val = 0;
int i = 0;
while (dma_addr) {
val += (u32)((dma_addr & 0xff) + i) % MT7996_RRO_MSDU_PG_HASH_SIZE;
dma_addr >>= 8;
i += 13;
}
return val % MT7996_RRO_MSDU_PG_HASH_SIZE;
}
static struct mt7996_msdu_page *
mt7996_rro_msdu_page_get(struct mt7996_dev *dev, dma_addr_t dma_addr)
{
u32 hash = mt7996_msdu_page_hash_from_addr(dma_addr);
struct mt7996_msdu_page *p, *tmp, *addr = NULL;
spin_lock(&dev->wed_rro.lock);
list_for_each_entry_safe(p, tmp, &dev->wed_rro.page_map[hash],
list) {
if (p->dma_addr == dma_addr) {
list_del(&p->list);
addr = p;
break;
}
}
spin_unlock(&dev->wed_rro.lock);
return addr;
}
static void mt7996_rx_token_put(struct mt7996_dev *dev)
{
int i;
for (i = 0; i < dev->mt76.rx_token_size; i++) {
struct mt76_txwi_cache *t;
t = mt76_rx_token_release(&dev->mt76, i);
if (!t || !t->ptr)
continue;
mt76_put_page_pool_buf(t->ptr, false);
t->dma_addr = 0;
t->ptr = NULL;
mt76_put_rxwi(&dev->mt76, t);
}
}
void mt7996_rro_msdu_page_map_free(struct mt7996_dev *dev)
{
struct mt7996_msdu_page *p, *tmp;
int i;
local_bh_disable();
for (i = 0; i < ARRAY_SIZE(dev->wed_rro.page_map); i++) {
list_for_each_entry_safe(p, tmp, &dev->wed_rro.page_map[i],
list) {
list_del_init(&p->list);
if (p->buf)
mt76_put_page_pool_buf(p->buf, false);
kfree(p);
}
}
mt7996_msdu_page_free_cache(dev);
local_bh_enable();
mt7996_rx_token_put(dev);
}
int mt7996_rro_msdu_page_add(struct mt76_dev *mdev, struct mt76_queue *q,
dma_addr_t dma_addr, void *data)
{
struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
struct mt7996_msdu_page_info *pinfo = data;
struct mt7996_msdu_page *p;
u32 hash;
pinfo->data |= cpu_to_le32(FIELD_PREP(MSDU_PAGE_INFO_OWNER_MASK, 1));
p = mt7996_msdu_page_get(dev);
if (!p)
return -ENOMEM;
p->buf = data;
p->dma_addr = dma_addr;
p->q = q;
hash = mt7996_msdu_page_hash_from_addr(dma_addr);
spin_lock(&dev->wed_rro.lock);
list_add_tail(&p->list, &dev->wed_rro.page_map[hash]);
spin_unlock(&dev->wed_rro.lock);
return 0;
}
static struct mt7996_wed_rro_addr *
mt7996_rro_addr_elem_get(struct mt7996_dev *dev, u16 session_id, u16 seq_num)
{
u32 idx = 0;
void *addr;
if (session_id == MT7996_RRO_MAX_SESSION) {
addr = dev->wed_rro.session.ptr;
} else {
idx = session_id / MT7996_RRO_BA_BITMAP_SESSION_SIZE;
addr = dev->wed_rro.addr_elem[idx].ptr;
idx = session_id % MT7996_RRO_BA_BITMAP_SESSION_SIZE;
idx = idx * MT7996_RRO_WINDOW_MAX_LEN;
}
idx += seq_num % MT7996_RRO_WINDOW_MAX_LEN;
return addr + idx * sizeof(struct mt7996_wed_rro_addr);
}
#define MT996_RRO_SN_MASK GENMASK(11, 0)
void mt7996_rro_rx_process(struct mt76_dev *mdev, void *data)
{
struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
struct mt76_wed_rro_ind *cmd = (struct mt76_wed_rro_ind *)data;
u32 cmd_data0 = le32_to_cpu(cmd->data0);
u32 cmd_data1 = le32_to_cpu(cmd->data1);
u8 ind_reason = FIELD_GET(RRO_IND_DATA0_IND_REASON_MASK, cmd_data0);
u16 start_seq = FIELD_GET(RRO_IND_DATA0_START_SEQ_MASK, cmd_data0);
u16 seq_id = FIELD_GET(RRO_IND_DATA0_SEQ_ID_MASK, cmd_data0);
u16 ind_count = FIELD_GET(RRO_IND_DATA1_IND_COUNT_MASK, cmd_data1);
struct mt7996_msdu_page_info *pinfo = NULL;
struct mt7996_msdu_page *p = NULL;
int i, seq_num = 0;
for (i = 0; i < ind_count; i++) {
struct mt7996_wed_rro_addr *e;
struct mt76_rx_status *status;
struct mt7996_rro_hif *rxd;
int j, len, qid, data_len;
struct mt76_txwi_cache *t;
dma_addr_t dma_addr = 0;
u16 rx_token_id, count;
struct mt76_queue *q;
struct sk_buff *skb;
u32 info = 0, data;
u8 signature;
void *buf;
bool ls;
seq_num = FIELD_GET(MT996_RRO_SN_MASK, start_seq + i);
e = mt7996_rro_addr_elem_get(dev, seq_id, seq_num);
data = le32_to_cpu(e->data);
signature = FIELD_GET(WED_RRO_ADDR_SIGNATURE_MASK, data);
if (signature != (seq_num / MT7996_RRO_WINDOW_MAX_LEN)) {
u32 val = FIELD_PREP(WED_RRO_ADDR_SIGNATURE_MASK,
0xff);
e->data |= cpu_to_le32(val);
goto update_ack_seq_num;
}
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
dma_addr = FIELD_GET(WED_RRO_ADDR_HEAD_HIGH_MASK, data);
dma_addr <<= 32;
#endif
dma_addr |= le32_to_cpu(e->head_low);
count = FIELD_GET(WED_RRO_ADDR_COUNT_MASK, data);
for (j = 0; j < count; j++) {
if (!p) {
p = mt7996_rro_msdu_page_get(dev, dma_addr);
if (!p)
continue;
dma_sync_single_for_cpu(mdev->dma_dev, p->dma_addr,
SKB_WITH_OVERHEAD(p->q->buf_size),
page_pool_get_dma_dir(p->q->page_pool));
pinfo = (struct mt7996_msdu_page_info *)p->buf;
}
rxd = &pinfo->rxd[j % MT7996_MAX_HIF_RXD_IN_PG];
len = FIELD_GET(RRO_HIF_DATA1_SDL_MASK,
le32_to_cpu(rxd->data1));
rx_token_id = FIELD_GET(RRO_HIF_DATA4_RX_TOKEN_ID_MASK,
le32_to_cpu(rxd->data4));
t = mt76_rx_token_release(mdev, rx_token_id);
if (!t)
goto next_page;
qid = t->qid;
buf = t->ptr;
q = &mdev->q_rx[qid];
dma_sync_single_for_cpu(mdev->dma_dev, t->dma_addr,
SKB_WITH_OVERHEAD(q->buf_size),
page_pool_get_dma_dir(q->page_pool));
t->dma_addr = 0;
t->ptr = NULL;
mt76_put_rxwi(mdev, t);
if (!buf)
goto next_page;
if (q->rx_head)
data_len = q->buf_size;
else
data_len = SKB_WITH_OVERHEAD(q->buf_size);
if (data_len < len + q->buf_offset) {
dev_kfree_skb(q->rx_head);
mt76_put_page_pool_buf(buf, false);
q->rx_head = NULL;
goto next_page;
}
ls = FIELD_GET(RRO_HIF_DATA1_LS_MASK,
le32_to_cpu(rxd->data1));
if (q->rx_head) {
mt76_put_page_pool_buf(buf, false);
if (ls) {
dev_kfree_skb(q->rx_head);
q->rx_head = NULL;
}
goto next_page;
}
if (ls && !mt7996_rx_check(mdev, buf, len))
goto next_page;
skb = build_skb(buf, q->buf_size);
if (!skb)
goto next_page;
skb_reserve(skb, q->buf_offset);
skb_mark_for_recycle(skb);
__skb_put(skb, len);
if (ind_reason == 1 || ind_reason == 2) {
dev_kfree_skb(skb);
goto next_page;
}
if (!ls) {
q->rx_head = skb;
goto next_page;
}
status = (struct mt76_rx_status *)skb->cb;
if (seq_id != MT7996_RRO_MAX_SESSION)
status->aggr = true;
mt7996_queue_rx_skb(mdev, qid, skb, &info);
next_page:
if ((j + 1) % MT7996_MAX_HIF_RXD_IN_PG == 0) {
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
dma_addr =
FIELD_GET(MSDU_PAGE_INFO_PG_HIGH_MASK,
le32_to_cpu(pinfo->data));
dma_addr <<= 32;
dma_addr |= le32_to_cpu(pinfo->pg_low);
#else
dma_addr = le32_to_cpu(pinfo->pg_low);
#endif
mt7996_msdu_page_put_to_cache(dev, p);
p = NULL;
}
}
update_ack_seq_num:
if ((i + 1) % 4 == 0)
mt76_wr(dev, MT_RRO_ACK_SN_CTRL,
FIELD_PREP(MT_RRO_ACK_SN_CTRL_SESSION_MASK,
seq_id) |
FIELD_PREP(MT_RRO_ACK_SN_CTRL_SN_MASK,
seq_num));
if (p) {
mt7996_msdu_page_put_to_cache(dev, p);
p = NULL;
}
}
if (i % 4)
mt76_wr(dev, MT_RRO_ACK_SN_CTRL,
FIELD_PREP(MT_RRO_ACK_SN_CTRL_SESSION_MASK, seq_id) |
FIELD_PREP(MT_RRO_ACK_SN_CTRL_SN_MASK, seq_num));
}
void mt7996_mac_cca_stats_reset(struct mt7996_phy *phy)
{
struct mt7996_dev *dev = phy->dev;
u32 reg = MT_WF_PHYRX_BAND_RX_CTRL1(phy->mt76->band_idx);
mt76_clear(dev, reg, MT_WF_PHYRX_BAND_RX_CTRL1_STSCNT_EN);
mt76_set(dev, reg, BIT(11) | BIT(9));
}
void mt7996_mac_reset_counters(struct mt7996_phy *phy)
{
struct mt7996_dev *dev = phy->dev;
u8 band_idx = phy->mt76->band_idx;
int i;
for (i = 0; i < 16; i++)
mt76_rr(dev, MT_TX_AGG_CNT(band_idx, i));
phy->mt76->survey_time = ktime_get_boottime();
memset(phy->mt76->aggr_stats, 0, sizeof(phy->mt76->aggr_stats));
mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(band_idx),
MT_WF_RMAC_MIB_RXTIME_CLR);
mt7996_mcu_get_chan_mib_info(phy, true);
}
void mt7996_mac_set_coverage_class(struct mt7996_phy *phy)
{
s16 coverage_class = phy->coverage_class;
struct mt7996_dev *dev = phy->dev;
struct mt7996_phy *phy2 = mt7996_phy2(dev);
struct mt7996_phy *phy3 = mt7996_phy3(dev);
u32 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);
u8 band_idx = phy->mt76->band_idx;
int offset;
if (!test_bit(MT76_STATE_RUNNING, &phy->mt76->state))
return;
if (phy2)
coverage_class = max_t(s16, dev->phy.coverage_class,
phy2->coverage_class);
if (phy3)
coverage_class = max_t(s16, coverage_class,
phy3->coverage_class);
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(band_idx), cck + reg_offset);
mt76_wr(dev, MT_TMAC_ODTR(band_idx), ofdm + reg_offset);
}
void mt7996_mac_enable_nf(struct mt7996_dev *dev, u8 band)
{
mt76_set(dev, MT_WF_PHYRX_CSD_BAND_RXTD12(band),
MT_WF_PHYRX_CSD_BAND_RXTD12_IRPI_SW_CLR_ONLY |
MT_WF_PHYRX_CSD_BAND_RXTD12_IRPI_SW_CLR);
mt76_set(dev, MT_WF_PHYRX_BAND_RX_CTRL1(band),
FIELD_PREP(MT_WF_PHYRX_BAND_RX_CTRL1_IPI_EN, 0x5));
}
static u8
mt7996_phy_get_nf(struct mt7996_phy *phy, u8 band_idx)
{
static const u8 nf_power[] = { 92, 89, 86, 83, 80, 75, 70, 65, 60, 55, 52 };
struct mt7996_dev *dev = phy->dev;
u32 val, sum = 0, n = 0;
int ant, i;
for (ant = 0; ant < hweight8(phy->mt76->antenna_mask); ant++) {
u32 reg = MT_WF_PHYRX_CSD_IRPI(band_idx, ant);
for (i = 0; i < ARRAY_SIZE(nf_power); i++, reg += 4) {
val = mt76_rr(dev, reg);
sum += val * nf_power[i];
n += val;
}
}
return n ? sum / n : 0;
}
void mt7996_update_channel(struct mt76_phy *mphy)
{
struct mt7996_phy *phy = mphy->priv;
struct mt76_channel_state *state = mphy->chan_state;
int nf;
mt7996_mcu_get_chan_mib_info(phy, false);
nf = mt7996_phy_get_nf(phy, mphy->band_idx);
if (!phy->noise)
phy->noise = nf << 4;
else if (nf)
phy->noise += nf - (phy->noise >> 4);
state->noise = -(phy->noise >> 4);
}
static bool
mt7996_wait_reset_state(struct mt7996_dev *dev, u32 state)
{
bool ret;
ret = wait_event_timeout(dev->reset_wait,
(READ_ONCE(dev->recovery.state) & state),
MT7996_RESET_TIMEOUT);
WARN(!ret, "Timeout waiting for MCU reset state %x\n", state);
return ret;
}
static void
mt7996_update_vif_beacon(void *priv, u8 *mac, struct ieee80211_vif *vif)
{
struct ieee80211_bss_conf *link_conf;
struct mt7996_phy *phy = priv;
struct mt7996_dev *dev = phy->dev;
unsigned int link_id;
switch (vif->type) {
case NL80211_IFTYPE_MESH_POINT:
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_AP:
break;
default:
return;
}
for_each_vif_active_link(vif, link_conf, link_id) {
struct mt7996_vif_link *link;
link = mt7996_vif_link(dev, vif, link_id);
if (!link || link->phy != phy)
continue;
mt7996_mcu_add_beacon(dev->mt76.hw, vif, link_conf,
link_conf->enable_beacon);
}
}
void mt7996_mac_update_beacons(struct mt7996_phy *phy)
{
ieee80211_iterate_active_interfaces(phy->mt76->hw,
IEEE80211_IFACE_ITER_RESUME_ALL,
mt7996_update_vif_beacon, phy);
}
static void
mt7996_update_beacons(struct mt7996_dev *dev)
{
struct mt76_phy *phy2, *phy3;
mt7996_mac_update_beacons(&dev->phy);
phy2 = dev->mt76.phys[MT_BAND1];
if (phy2)
mt7996_mac_update_beacons(phy2->priv);
phy3 = dev->mt76.phys[MT_BAND2];
if (phy3)
mt7996_mac_update_beacons(phy3->priv);
}
void mt7996_tx_token_put(struct mt7996_dev *dev)
{
struct mt76_txwi_cache *txwi;
int id;
spin_lock_bh(&dev->mt76.token_lock);
idr_for_each_entry(&dev->mt76.token, txwi, id) {
mt7996_txwi_free(dev, txwi, NULL, NULL, NULL);
dev->mt76.token_count--;
}
spin_unlock_bh(&dev->mt76.token_lock);
idr_destroy(&dev->mt76.token);
}
static int
mt7996_mac_restart(struct mt7996_dev *dev)
{
struct mt76_dev *mdev = &dev->mt76;
struct mt7996_phy *phy;
int i, ret;
if (dev->hif2) {
mt76_wr(dev, MT_INT1_MASK_CSR, 0x0);
mt76_wr(dev, MT_INT1_SOURCE_CSR, ~0);
}
if (dev_is_pci(mdev->dev)) {
mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0x0);
if (dev->hif2)
mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0x0);
}
set_bit(MT76_MCU_RESET, &dev->mphy.state);
mt7996_for_each_phy(dev, phy)
set_bit(MT76_RESET, &phy->mt76->state);
wake_up(&dev->mt76.mcu.wait);
mt7996_for_each_phy(dev, phy)
mt76_txq_schedule_all(phy->mt76);
mt76_worker_disable(&dev->mt76.tx_worker);
mt76_for_each_q_rx(mdev, i) {
if (mtk_wed_device_active(&dev->mt76.mmio.wed) &&
mt76_queue_is_wed_rro(&mdev->q_rx[i]))
continue;
if (mdev->q_rx[i].ndesc)
napi_disable(&dev->mt76.napi[i]);
}
napi_disable(&dev->mt76.tx_napi);
mt7996_tx_token_put(dev);
idr_init(&dev->mt76.token);
mt7996_dma_reset(dev, true);
mt76_for_each_q_rx(mdev, i) {
if (mtk_wed_device_active(&dev->mt76.mmio.wed) &&
mt76_queue_is_wed_rro(&mdev->q_rx[i]))
continue;
if (mdev->q_rx[i].ndesc) {
napi_enable(&dev->mt76.napi[i]);
local_bh_disable();
napi_schedule(&dev->mt76.napi[i]);
local_bh_enable();
}
}
clear_bit(MT76_MCU_RESET, &dev->mphy.state);
clear_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
mt76_wr(dev, MT_INT_MASK_CSR, dev->mt76.mmio.irqmask);
mt76_wr(dev, MT_INT_SOURCE_CSR, ~0);
if (dev->hif2) {
mt76_wr(dev, MT_INT1_MASK_CSR, dev->mt76.mmio.irqmask);
mt76_wr(dev, MT_INT1_SOURCE_CSR, ~0);
}
if (dev_is_pci(mdev->dev)) {
mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
if (dev->hif2)
mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0xff);
}
ret = mt7996_mcu_init_firmware(dev);
if (ret)
goto out;
if (mtk_wed_device_active(&dev->mt76.mmio.wed) &&
mt7996_has_hwrro(dev)) {
u32 wed_irq_mask = dev->mt76.mmio.irqmask |
MT_INT_TX_DONE_BAND2;
mt7996_rro_hw_init(dev);
mt76_for_each_q_rx(&dev->mt76, i) {
if (mt76_queue_is_wed_rro_ind(&dev->mt76.q_rx[i]) ||
mt76_queue_is_wed_rro_msdu_pg(&dev->mt76.q_rx[i]))
mt76_queue_rx_reset(dev, i);
}
mt76_wr(dev, MT_INT_MASK_CSR, wed_irq_mask);
mtk_wed_device_start_hw_rro(&dev->mt76.mmio.wed, wed_irq_mask,
false);
mt7996_irq_enable(dev, wed_irq_mask);
mt7996_irq_disable(dev, 0);
}
if (mtk_wed_device_active(&dev->mt76.mmio.wed_hif2)) {
mt76_wr(dev, MT_INT_PCIE1_MASK_CSR,
MT_INT_TX_RX_DONE_EXT);
mtk_wed_device_start(&dev->mt76.mmio.wed_hif2,
MT_INT_TX_RX_DONE_EXT);
}
ret = mt7996_mcu_set_eeprom(dev);
if (ret)
goto out;
mt7996_mac_init(dev);
mt7996_for_each_phy(dev, phy)
mt7996_init_txpower(phy);
ret = mt7996_txbf_init(dev);
if (ret)
goto out;
mt7996_for_each_phy(dev, phy) {
if (!test_bit(MT76_STATE_RUNNING, &phy->mt76->state))
continue;
ret = mt7996_run(phy);
if (ret)
goto out;
}
out:
mt7996_for_each_phy(dev, phy)
clear_bit(MT76_RESET, &phy->mt76->state);
napi_enable(&dev->mt76.tx_napi);
local_bh_disable();
napi_schedule(&dev->mt76.tx_napi);
local_bh_enable();
mt76_worker_enable(&dev->mt76.tx_worker);
return ret;
}
static void
mt7996_mac_reset_sta_iter(void *data, struct ieee80211_sta *sta)
{
struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
struct mt7996_dev *dev = data;
int i;
for (i = 0; i < ARRAY_SIZE(msta->link); i++) {
struct mt7996_sta_link *msta_link = NULL;
msta_link = rcu_replace_pointer(msta->link[i], msta_link,
lockdep_is_held(&dev->mt76.mutex));
if (!msta_link)
continue;
mt7996_mac_sta_deinit_link(dev, msta_link);
if (msta->deflink_id == i) {
msta->deflink_id = IEEE80211_LINK_UNSPECIFIED;
continue;
}
kfree_rcu(msta_link, rcu_head);
}
}
static void
mt7996_mac_reset_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
{
struct mt76_vif_link *mlink = (struct mt76_vif_link *)vif->drv_priv;
struct mt76_vif_data *mvif = mlink->mvif;
struct mt7996_dev *dev = data;
int i;
rcu_read_lock();
for (i = 0; i < ARRAY_SIZE(mvif->link); i++) {
mlink = mt76_dereference(mvif->link[i], &dev->mt76);
if (!mlink || mlink == (struct mt76_vif_link *)vif->drv_priv)
continue;
rcu_assign_pointer(mvif->link[i], NULL);
kfree_rcu(mlink, rcu_head);
}
rcu_read_unlock();
}
static void
mt7996_mac_full_reset(struct mt7996_dev *dev)
{
struct ieee80211_hw *hw = mt76_hw(dev);
struct mt7996_phy *phy;
LIST_HEAD(list);
int i;
dev->recovery.hw_full_reset = true;
wake_up(&dev->mt76.mcu.wait);
ieee80211_stop_queues(hw);
cancel_work_sync(&dev->wed_rro.work);
mt7996_for_each_phy(dev, phy)
cancel_delayed_work_sync(&phy->mt76->mac_work);
mt76_abort_scan(&dev->mt76);
mutex_lock(&dev->mt76.mutex);
for (i = 0; i < 10; i++) {
if (!mt7996_mac_restart(dev))
break;
}
if (i == 10)
dev_err(dev->mt76.dev, "chip full reset failed\n");
mt7996_for_each_phy(dev, phy)
phy->omac_mask = 0;
ieee80211_iterate_stations_atomic(hw, mt7996_mac_reset_sta_iter, dev);
ieee80211_iterate_active_interfaces_atomic(hw,
IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER,
mt7996_mac_reset_vif_iter, dev);
mt76_reset_device(&dev->mt76);
INIT_LIST_HEAD(&dev->sta_rc_list);
INIT_LIST_HEAD(&dev->twt_list);
spin_lock_bh(&dev->wed_rro.lock);
list_splice_init(&dev->wed_rro.poll_list, &list);
spin_unlock_bh(&dev->wed_rro.lock);
while (!list_empty(&list)) {
struct mt7996_wed_rro_session_id *e;
e = list_first_entry(&list, struct mt7996_wed_rro_session_id,
list);
list_del_init(&e->list);
kfree(e);
}
i = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7996_WTBL_STA);
dev->mt76.global_wcid.idx = i;
dev->recovery.hw_full_reset = false;
mutex_unlock(&dev->mt76.mutex);
ieee80211_restart_hw(mt76_hw(dev));
}
void mt7996_mac_reset_work(struct work_struct *work)
{
struct ieee80211_hw *hw;
struct mt7996_dev *dev;
struct mt7996_phy *phy;
int i;
dev = container_of(work, struct mt7996_dev, reset_work);
hw = mt76_hw(dev);
if (dev->recovery.restart) {
mt76_clear(dev, MT_WFDMA0_MCU_HOST_INT_ENA,
MT_MCU_CMD_WDT_MASK);
if (READ_ONCE(dev->recovery.state) & MT_MCU_CMD_WA_WDT)
dev->recovery.wa_reset_count++;
else
dev->recovery.wm_reset_count++;
mt7996_mac_full_reset(dev);
mt7996_irq_enable(dev, MT_INT_MCU_CMD);
mt7996_irq_disable(dev, 0);
mt76_set(dev, MT_WFDMA0_MCU_HOST_INT_ENA, MT_MCU_CMD_WDT_MASK);
dev->recovery.state = MT_MCU_CMD_NORMAL_STATE;
dev->recovery.restart = false;
return;
}
if (!(READ_ONCE(dev->recovery.state) & MT_MCU_CMD_STOP_DMA))
return;
dev_info(dev->mt76.dev,"\n%s L1 SER recovery start.",
wiphy_name(hw->wiphy));
if (mtk_wed_device_active(&dev->mt76.mmio.wed_hif2))
mtk_wed_device_stop(&dev->mt76.mmio.wed_hif2);
if (mtk_wed_device_active(&dev->mt76.mmio.wed))
mtk_wed_device_stop(&dev->mt76.mmio.wed);
ieee80211_stop_queues(mt76_hw(dev));
set_bit(MT76_RESET, &dev->mphy.state);
set_bit(MT76_MCU_RESET, &dev->mphy.state);
mt76_abort_scan(&dev->mt76);
wake_up(&dev->mt76.mcu.wait);
cancel_work_sync(&dev->wed_rro.work);
mt7996_for_each_phy(dev, phy) {
mt76_abort_roc(phy->mt76);
set_bit(MT76_RESET, &phy->mt76->state);
cancel_delayed_work_sync(&phy->mt76->mac_work);
}
mt76_worker_disable(&dev->mt76.tx_worker);
mt76_for_each_q_rx(&dev->mt76, i) {
if (mtk_wed_device_active(&dev->mt76.mmio.wed) &&
mt76_queue_is_wed_rro(&dev->mt76.q_rx[i]))
continue;
napi_disable(&dev->mt76.napi[i]);
}
napi_disable(&dev->mt76.tx_napi);
mutex_lock(&dev->mt76.mutex);
mt7996_npu_hw_stop(dev);
mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_DMA_STOPPED);
if (mt7996_wait_reset_state(dev, MT_MCU_CMD_RESET_DONE)) {
mt7996_dma_reset(dev, false);
mt7996_tx_token_put(dev);
idr_init(&dev->mt76.token);
mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_DMA_INIT);
mt7996_wait_reset_state(dev, MT_MCU_CMD_RECOVERY_DONE);
}
mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_RESET_DONE);
mt7996_wait_reset_state(dev, MT_MCU_CMD_NORMAL_STATE);
mt7996_dma_start(dev, false, false);
if (!is_mt7996(&dev->mt76) && dev->mt76.hwrro_mode == MT76_HWRRO_V3)
mt76_wr(dev, MT_RRO_3_0_EMU_CONF, MT_RRO_3_0_EMU_CONF_EN_MASK);
if (mtk_wed_device_active(&dev->mt76.mmio.wed)) {
u32 wed_irq_mask = MT_INT_TX_DONE_BAND2 |
dev->mt76.mmio.irqmask;
mt76_wr(dev, MT_INT_MASK_CSR, wed_irq_mask);
mtk_wed_device_start_hw_rro(&dev->mt76.mmio.wed, wed_irq_mask,
true);
mt7996_irq_enable(dev, wed_irq_mask);
mt7996_irq_disable(dev, 0);
}
if (mtk_wed_device_active(&dev->mt76.mmio.wed_hif2)) {
mt76_wr(dev, MT_INT_PCIE1_MASK_CSR, MT_INT_TX_RX_DONE_EXT);
mtk_wed_device_start(&dev->mt76.mmio.wed_hif2,
MT_INT_TX_RX_DONE_EXT);
}
clear_bit(MT76_MCU_RESET, &dev->mphy.state);
mt7996_for_each_phy(dev, phy)
clear_bit(MT76_RESET, &phy->mt76->state);
mt76_for_each_q_rx(&dev->mt76, i) {
if (mtk_wed_device_active(&dev->mt76.mmio.wed) &&
mt76_queue_is_wed_rro(&dev->mt76.q_rx[i]))
continue;
napi_enable(&dev->mt76.napi[i]);
local_bh_disable();
napi_schedule(&dev->mt76.napi[i]);
local_bh_enable();
}
tasklet_schedule(&dev->mt76.irq_tasklet);
mt76_worker_enable(&dev->mt76.tx_worker);
napi_enable(&dev->mt76.tx_napi);
local_bh_disable();
napi_schedule(&dev->mt76.tx_napi);
local_bh_enable();
ieee80211_wake_queues(hw);
mt7996_update_beacons(dev);
mutex_unlock(&dev->mt76.mutex);
mt7996_npu_hw_init(dev);
mt7996_for_each_phy(dev, phy)
ieee80211_queue_delayed_work(hw, &phy->mt76->mac_work,
MT7996_WATCHDOG_TIME);
dev_info(dev->mt76.dev,"\n%s L1 SER recovery completed.",
wiphy_name(dev->mt76.hw->wiphy));
}
void mt7996_mac_dump_work(struct work_struct *work)
{
const struct mt7996_mem_region *mem_region;
struct mt7996_crash_data *crash_data;
struct mt7996_dev *dev;
struct mt7996_mem_hdr *hdr;
size_t buf_len;
int i;
u32 num;
u8 *buf;
dev = container_of(work, struct mt7996_dev, dump_work);
mutex_lock(&dev->dump_mutex);
crash_data = mt7996_coredump_new(dev);
if (!crash_data) {
mutex_unlock(&dev->dump_mutex);
goto skip_coredump;
}
mem_region = mt7996_coredump_get_mem_layout(dev, &num);
if (!mem_region || !crash_data->memdump_buf_len) {
mutex_unlock(&dev->dump_mutex);
goto skip_memdump;
}
buf = crash_data->memdump_buf;
buf_len = crash_data->memdump_buf_len;
memset(buf, 0, buf_len);
for (i = 0; i < num; i++) {
if (mem_region->len > buf_len) {
dev_warn(dev->mt76.dev, "%s len %zu is too large\n",
mem_region->name, mem_region->len);
break;
}
hdr = (void *)buf;
buf += sizeof(*hdr);
buf_len -= sizeof(*hdr);
mt7996_memcpy_fromio(dev, buf, mem_region->start,
mem_region->len);
hdr->start = mem_region->start;
hdr->len = mem_region->len;
if (!mem_region->len)
break;
buf += mem_region->len;
buf_len -= mem_region->len;
mem_region++;
}
mutex_unlock(&dev->dump_mutex);
skip_memdump:
mt7996_coredump_submit(dev);
skip_coredump:
queue_work(dev->mt76.wq, &dev->reset_work);
}
void mt7996_reset(struct mt7996_dev *dev)
{
if (!dev->recovery.hw_init_done)
return;
if (dev->recovery.hw_full_reset)
return;
if (READ_ONCE(dev->recovery.state) & MT_MCU_CMD_WDT_MASK) {
dev->recovery.restart = true;
dev_info(dev->mt76.dev,
"%s indicated firmware crash, attempting recovery\n",
wiphy_name(dev->mt76.hw->wiphy));
mt7996_irq_disable(dev, MT_INT_MCU_CMD);
queue_work(dev->mt76.wq, &dev->dump_work);
return;
}
queue_work(dev->mt76.wq, &dev->reset_work);
wake_up(&dev->reset_wait);
}
void mt7996_mac_update_stats(struct mt7996_phy *phy)
{
struct mt76_mib_stats *mib = &phy->mib;
struct mt7996_dev *dev = phy->dev;
u8 band_idx = phy->mt76->band_idx;
u32 cnt;
int i;
cnt = mt76_rr(dev, MT_MIB_RSCR1(band_idx));
mib->fcs_err_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_RSCR33(band_idx));
mib->rx_fifo_full_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_RSCR31(band_idx));
mib->rx_mpdu_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_SDR6(band_idx));
mib->channel_idle_cnt += FIELD_GET(MT_MIB_SDR6_CHANNEL_IDL_CNT_MASK, cnt);
cnt = mt76_rr(dev, MT_MIB_RVSR0(band_idx));
mib->rx_vector_mismatch_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_RSCR35(band_idx));
mib->rx_delimiter_fail_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_RSCR36(band_idx));
mib->rx_len_mismatch_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_TSCR0(band_idx));
mib->tx_ampdu_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_TSCR2(band_idx));
mib->tx_stop_q_empty_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_TSCR3(band_idx));
mib->tx_mpdu_attempts_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_TSCR4(band_idx));
mib->tx_mpdu_success_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_RSCR27(band_idx));
mib->rx_ampdu_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_RSCR28(band_idx));
mib->rx_ampdu_bytes_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_RSCR29(band_idx));
mib->rx_ampdu_valid_subframe_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_RSCR30(band_idx));
mib->rx_ampdu_valid_subframe_bytes_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_SDR27(band_idx));
mib->tx_rwp_fail_cnt += FIELD_GET(MT_MIB_SDR27_TX_RWP_FAIL_CNT, cnt);
cnt = mt76_rr(dev, MT_MIB_SDR28(band_idx));
mib->tx_rwp_need_cnt += FIELD_GET(MT_MIB_SDR28_TX_RWP_NEED_CNT, cnt);
cnt = mt76_rr(dev, MT_UMIB_RPDCR(band_idx));
mib->rx_pfdrop_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_RVSR1(band_idx));
mib->rx_vec_queue_overflow_drop_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_TSCR1(band_idx));
mib->rx_ba_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_BSCR0(band_idx));
mib->tx_bf_ebf_ppdu_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_BSCR1(band_idx));
mib->tx_bf_ibf_ppdu_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_BSCR2(band_idx));
mib->tx_mu_bf_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_TSCR5(band_idx));
mib->tx_mu_mpdu_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_TSCR6(band_idx));
mib->tx_mu_acked_mpdu_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_TSCR7(band_idx));
mib->tx_su_acked_mpdu_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_BSCR3(band_idx));
mib->tx_bf_rx_fb_ht_cnt += cnt;
mib->tx_bf_rx_fb_all_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_BSCR4(band_idx));
mib->tx_bf_rx_fb_vht_cnt += cnt;
mib->tx_bf_rx_fb_all_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_BSCR5(band_idx));
mib->tx_bf_rx_fb_he_cnt += cnt;
mib->tx_bf_rx_fb_all_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_BSCR6(band_idx));
mib->tx_bf_rx_fb_eht_cnt += cnt;
mib->tx_bf_rx_fb_all_cnt += cnt;
cnt = mt76_rr(dev, MT_ETBF_RX_FB_CONT(band_idx));
mib->tx_bf_rx_fb_bw = FIELD_GET(MT_ETBF_RX_FB_BW, cnt);
mib->tx_bf_rx_fb_nc_cnt += FIELD_GET(MT_ETBF_RX_FB_NC, cnt);
mib->tx_bf_rx_fb_nr_cnt += FIELD_GET(MT_ETBF_RX_FB_NR, cnt);
cnt = mt76_rr(dev, MT_MIB_BSCR7(band_idx));
mib->tx_bf_fb_trig_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_BSCR17(band_idx));
mib->tx_bf_fb_cpl_cnt += cnt;
for (i = 0; i < ARRAY_SIZE(mib->tx_amsdu); i++) {
cnt = mt76_rr(dev, MT_PLE_AMSDU_PACK_MSDU_CNT(i));
mib->tx_amsdu[i] += cnt;
mib->tx_amsdu_cnt += cnt;
}
cnt = mt76_rr(dev, MT_MIB_BTSCR5(band_idx));
mib->rts_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_BTSCR6(band_idx));
mib->rts_retries_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_BTSCR0(band_idx));
mib->ba_miss_cnt += cnt;
cnt = mt76_rr(dev, MT_MIB_BFTFCR(band_idx));
mib->ack_fail_cnt += cnt;
for (i = 0; i < 16; i++) {
cnt = mt76_rr(dev, MT_TX_AGG_CNT(band_idx, i));
phy->mt76->aggr_stats[i] += cnt;
}
}
void mt7996_mac_sta_rc_work(struct work_struct *work)
{
struct mt7996_dev *dev = container_of(work, struct mt7996_dev, rc_work);
struct mt7996_sta_link *msta_link;
struct ieee80211_vif *vif;
struct mt7996_vif *mvif;
LIST_HEAD(list);
u32 changed;
mutex_lock(&dev->mt76.mutex);
spin_lock_bh(&dev->mt76.sta_poll_lock);
list_splice_init(&dev->sta_rc_list, &list);
while (!list_empty(&list)) {
msta_link = list_first_entry(&list, struct mt7996_sta_link,
rc_list);
list_del_init(&msta_link->rc_list);
changed = msta_link->changed;
msta_link->changed = 0;
mvif = msta_link->sta->vif;
vif = container_of((void *)mvif, struct ieee80211_vif,
drv_priv);
spin_unlock_bh(&dev->mt76.sta_poll_lock);
if (changed & (IEEE80211_RC_SUPP_RATES_CHANGED |
IEEE80211_RC_NSS_CHANGED |
IEEE80211_RC_BW_CHANGED))
mt7996_mcu_add_rate_ctrl(dev, msta_link->sta, vif,
msta_link->wcid.link_id,
true);
if (changed & IEEE80211_RC_SMPS_CHANGED)
mt7996_mcu_set_fixed_field(dev, msta_link->sta, NULL,
msta_link->wcid.link_id,
RATE_PARAM_MMPS_UPDATE);
spin_lock_bh(&dev->mt76.sta_poll_lock);
}
spin_unlock_bh(&dev->mt76.sta_poll_lock);
mutex_unlock(&dev->mt76.mutex);
}
void mt7996_mac_work(struct work_struct *work)
{
struct mt7996_phy *phy;
struct mt76_phy *mphy;
mphy = (struct mt76_phy *)container_of(work, struct mt76_phy,
mac_work.work);
phy = mphy->priv;
mutex_lock(&mphy->dev->mutex);
mt76_update_survey(mphy);
if (++mphy->mac_work_count == 5) {
mphy->mac_work_count = 0;
mt7996_mac_update_stats(phy);
mt7996_mcu_get_all_sta_info(phy, UNI_ALL_STA_TXRX_RATE);
if (mtk_wed_device_active(&phy->dev->mt76.mmio.wed)) {
mt7996_mcu_get_all_sta_info(phy, UNI_ALL_STA_TXRX_ADM_STAT);
mt7996_mcu_get_all_sta_info(phy, UNI_ALL_STA_TXRX_MSDU_COUNT);
}
}
mutex_unlock(&mphy->dev->mutex);
mt76_tx_status_check(mphy->dev, false);
ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
MT7996_WATCHDOG_TIME);
}
static void mt7996_dfs_stop_radar_detector(struct mt7996_phy *phy)
{
struct mt7996_dev *dev = phy->dev;
int rdd_idx = mt7996_get_rdd_idx(phy, false);
if (rdd_idx < 0)
return;
mt7996_mcu_rdd_cmd(dev, RDD_STOP, rdd_idx, 0);
}
static int mt7996_dfs_start_rdd(struct mt7996_dev *dev, int rdd_idx)
{
int err, region;
switch (dev->mt76.region) {
case NL80211_DFS_ETSI:
region = 0;
break;
case NL80211_DFS_JP:
region = 2;
break;
case NL80211_DFS_FCC:
default:
region = 1;
break;
}
err = mt7996_mcu_rdd_cmd(dev, RDD_START, rdd_idx, region);
if (err < 0)
return err;
return mt7996_mcu_rdd_cmd(dev, RDD_DET_MODE, rdd_idx, 1);
}
static int mt7996_dfs_start_radar_detector(struct mt7996_phy *phy)
{
struct mt7996_dev *dev = phy->dev;
int err, rdd_idx;
rdd_idx = mt7996_get_rdd_idx(phy, false);
if (rdd_idx < 0)
return -EINVAL;
err = mt7996_mcu_rdd_cmd(dev, RDD_CAC_START, rdd_idx, 0);
if (err < 0)
return err;
err = mt7996_dfs_start_rdd(dev, rdd_idx);
return err;
}
static int
mt7996_dfs_init_radar_specs(struct mt7996_phy *phy)
{
const struct mt7996_dfs_radar_spec *radar_specs;
struct mt7996_dev *dev = phy->dev;
int err, i;
switch (dev->mt76.region) {
case NL80211_DFS_FCC:
radar_specs = &fcc_radar_specs;
err = mt7996_mcu_set_fcc5_lpn(dev, 8);
if (err < 0)
return err;
break;
case NL80211_DFS_ETSI:
radar_specs = &etsi_radar_specs;
break;
case NL80211_DFS_JP:
radar_specs = &jp_radar_specs;
break;
default:
return -EINVAL;
}
for (i = 0; i < ARRAY_SIZE(radar_specs->radar_pattern); i++) {
err = mt7996_mcu_set_radar_th(dev, i,
&radar_specs->radar_pattern[i]);
if (err < 0)
return err;
}
return mt7996_mcu_set_pulse_th(dev, &radar_specs->pulse_th);
}
int mt7996_dfs_init_radar_detector(struct mt7996_phy *phy)
{
struct mt7996_dev *dev = phy->dev;
enum mt76_dfs_state dfs_state, prev_state;
int err, rdd_idx = mt7996_get_rdd_idx(phy, false);
prev_state = phy->mt76->dfs_state;
dfs_state = mt76_phy_dfs_state(phy->mt76);
if (prev_state == dfs_state || rdd_idx < 0)
return 0;
if (prev_state == MT_DFS_STATE_UNKNOWN)
mt7996_dfs_stop_radar_detector(phy);
if (dfs_state == MT_DFS_STATE_DISABLED)
goto stop;
if (prev_state <= MT_DFS_STATE_DISABLED) {
err = mt7996_dfs_init_radar_specs(phy);
if (err < 0)
return err;
err = mt7996_dfs_start_radar_detector(phy);
if (err < 0)
return err;
phy->mt76->dfs_state = MT_DFS_STATE_CAC;
}
if (dfs_state == MT_DFS_STATE_CAC)
return 0;
err = mt7996_mcu_rdd_cmd(dev, RDD_CAC_END, rdd_idx, 0);
if (err < 0) {
phy->mt76->dfs_state = MT_DFS_STATE_UNKNOWN;
return err;
}
phy->mt76->dfs_state = MT_DFS_STATE_ACTIVE;
return 0;
stop:
err = mt7996_mcu_rdd_cmd(dev, RDD_NORMAL_START, rdd_idx, 0);
if (err < 0)
return err;
mt7996_dfs_stop_radar_detector(phy);
phy->mt76->dfs_state = MT_DFS_STATE_DISABLED;
return 0;
}
static int
mt7996_mac_twt_duration_align(int duration)
{
return duration << 8;
}
static u64
mt7996_mac_twt_sched_list_add(struct mt7996_dev *dev,
struct mt7996_twt_flow *flow)
{
struct mt7996_twt_flow *iter, *iter_next;
u32 duration = flow->duration << 8;
u64 start_tsf;
iter = list_first_entry_or_null(&dev->twt_list,
struct mt7996_twt_flow, list);
if (!iter || !iter->sched || iter->start_tsf > duration) {
list_add(&flow->list, &dev->twt_list);
return 0;
}
list_for_each_entry_safe(iter, iter_next, &dev->twt_list, list) {
start_tsf = iter->start_tsf +
mt7996_mac_twt_duration_align(iter->duration);
if (list_is_last(&iter->list, &dev->twt_list))
break;
if (!iter_next->sched ||
iter_next->start_tsf > start_tsf + duration) {
list_add(&flow->list, &iter->list);
goto out;
}
}
list_add_tail(&flow->list, &dev->twt_list);
out:
return start_tsf;
}
static int mt7996_mac_check_twt_req(struct ieee80211_twt_setup *twt)
{
struct ieee80211_twt_params *twt_agrt;
u64 interval, duration;
u16 mantissa;
u8 exp;
if (twt->control & IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST)
return -EOPNOTSUPP;
if (twt->control & IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT)
return -EOPNOTSUPP;
twt_agrt = (struct ieee80211_twt_params *)twt->params;
if (!(twt_agrt->req_type & cpu_to_le16(IEEE80211_TWT_REQTYPE_IMPLICIT)))
return -EOPNOTSUPP;
exp = FIELD_GET(IEEE80211_TWT_REQTYPE_WAKE_INT_EXP,
le16_to_cpu(twt_agrt->req_type));
mantissa = le16_to_cpu(twt_agrt->mantissa);
duration = twt_agrt->min_twt_dur << 8;
interval = (u64)mantissa << exp;
if (interval < duration)
return -EOPNOTSUPP;
return 0;
}
static bool
mt7996_mac_twt_param_equal(struct mt7996_sta_link *msta_link,
struct ieee80211_twt_params *twt_agrt)
{
u16 type = le16_to_cpu(twt_agrt->req_type);
u8 exp;
int i;
exp = FIELD_GET(IEEE80211_TWT_REQTYPE_WAKE_INT_EXP, type);
for (i = 0; i < MT7996_MAX_STA_TWT_AGRT; i++) {
struct mt7996_twt_flow *f;
if (!(msta_link->twt.flowid_mask & BIT(i)))
continue;
f = &msta_link->twt.flow[i];
if (f->duration == twt_agrt->min_twt_dur &&
f->mantissa == twt_agrt->mantissa &&
f->exp == exp &&
f->protection == !!(type & IEEE80211_TWT_REQTYPE_PROTECTION) &&
f->flowtype == !!(type & IEEE80211_TWT_REQTYPE_FLOWTYPE) &&
f->trigger == !!(type & IEEE80211_TWT_REQTYPE_TRIGGER))
return true;
}
return false;
}
void mt7996_mac_add_twt_setup(struct ieee80211_hw *hw,
struct ieee80211_sta *sta,
struct ieee80211_twt_setup *twt)
{
enum ieee80211_twt_setup_cmd setup_cmd = TWT_SETUP_CMD_REJECT;
struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
struct ieee80211_twt_params *twt_agrt = (void *)twt->params;
struct mt7996_sta_link *msta_link = &msta->deflink;
u16 req_type = le16_to_cpu(twt_agrt->req_type);
enum ieee80211_twt_setup_cmd sta_setup_cmd;
struct mt7996_dev *dev = mt7996_hw_dev(hw);
struct mt7996_twt_flow *flow;
u8 flowid, table_id, exp;
if (mt7996_mac_check_twt_req(twt))
goto out;
mutex_lock(&dev->mt76.mutex);
if (dev->twt.n_agrt == MT7996_MAX_TWT_AGRT)
goto unlock;
if (hweight8(msta_link->twt.flowid_mask) ==
ARRAY_SIZE(msta_link->twt.flow))
goto unlock;
if (twt_agrt->min_twt_dur < MT7996_MIN_TWT_DUR) {
setup_cmd = TWT_SETUP_CMD_DICTATE;
twt_agrt->min_twt_dur = MT7996_MIN_TWT_DUR;
goto unlock;
}
if (mt7996_mac_twt_param_equal(msta_link, twt_agrt))
goto unlock;
flowid = ffs(~msta_link->twt.flowid_mask) - 1;
twt_agrt->req_type &= ~cpu_to_le16(IEEE80211_TWT_REQTYPE_FLOWID);
twt_agrt->req_type |= le16_encode_bits(flowid,
IEEE80211_TWT_REQTYPE_FLOWID);
table_id = ffs(~dev->twt.table_mask) - 1;
exp = FIELD_GET(IEEE80211_TWT_REQTYPE_WAKE_INT_EXP, req_type);
sta_setup_cmd = FIELD_GET(IEEE80211_TWT_REQTYPE_SETUP_CMD, req_type);
flow = &msta_link->twt.flow[flowid];
memset(flow, 0, sizeof(*flow));
INIT_LIST_HEAD(&flow->list);
flow->wcid = msta_link->wcid.idx;
flow->table_id = table_id;
flow->id = flowid;
flow->duration = twt_agrt->min_twt_dur;
flow->mantissa = twt_agrt->mantissa;
flow->exp = exp;
flow->protection = !!(req_type & IEEE80211_TWT_REQTYPE_PROTECTION);
flow->flowtype = !!(req_type & IEEE80211_TWT_REQTYPE_FLOWTYPE);
flow->trigger = !!(req_type & IEEE80211_TWT_REQTYPE_TRIGGER);
if (sta_setup_cmd == TWT_SETUP_CMD_REQUEST ||
sta_setup_cmd == TWT_SETUP_CMD_SUGGEST) {
u64 interval = (u64)le16_to_cpu(twt_agrt->mantissa) << exp;
u64 flow_tsf, curr_tsf;
u32 rem;
flow->sched = true;
flow->start_tsf = mt7996_mac_twt_sched_list_add(dev, flow);
curr_tsf = __mt7996_get_tsf(hw, &msta->vif->deflink);
div_u64_rem(curr_tsf - flow->start_tsf, interval, &rem);
flow_tsf = curr_tsf + interval - rem;
twt_agrt->twt = cpu_to_le64(flow_tsf);
} else {
list_add_tail(&flow->list, &dev->twt_list);
}
flow->tsf = le64_to_cpu(twt_agrt->twt);
if (mt7996_mcu_twt_agrt_update(dev, &msta->vif->deflink, flow,
MCU_TWT_AGRT_ADD))
goto unlock;
setup_cmd = TWT_SETUP_CMD_ACCEPT;
dev->twt.table_mask |= BIT(table_id);
msta_link->twt.flowid_mask |= BIT(flowid);
dev->twt.n_agrt++;
unlock:
mutex_unlock(&dev->mt76.mutex);
out:
twt_agrt->req_type &= ~cpu_to_le16(IEEE80211_TWT_REQTYPE_SETUP_CMD);
twt_agrt->req_type |=
le16_encode_bits(setup_cmd, IEEE80211_TWT_REQTYPE_SETUP_CMD);
twt->control = twt->control & IEEE80211_TWT_CONTROL_RX_DISABLED;
}
void mt7996_mac_twt_teardown_flow(struct mt7996_dev *dev,
struct mt7996_vif_link *link,
struct mt7996_sta_link *msta_link,
u8 flowid)
{
struct mt7996_twt_flow *flow;
lockdep_assert_held(&dev->mt76.mutex);
if (flowid >= ARRAY_SIZE(msta_link->twt.flow))
return;
if (!(msta_link->twt.flowid_mask & BIT(flowid)))
return;
flow = &msta_link->twt.flow[flowid];
if (mt7996_mcu_twt_agrt_update(dev, link, flow, MCU_TWT_AGRT_DELETE))
return;
list_del_init(&flow->list);
msta_link->twt.flowid_mask &= ~BIT(flowid);
dev->twt.table_mask &= ~BIT(flow->table_id);
dev->twt.n_agrt--;
}
