(Patches split into one patch per file for easier review, but the final
commit will be one big patch. See the cover letter for more info.)
Co-developed-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
Signed-off-by: Deren Wu <deren.wu@xxxxxxxxxxxx>
---
.../net/wireless/mediatek/mt76/mt7925/mac.c | 1452 +++++++++++++++++
1 file changed, 1452 insertions(+)
create mode 100644 drivers/net/wireless/mediatek/mt76/mt7925/mac.c
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mac.c b/drivers/net/wireless/mediatek/mt76/mt7925/mac.c
new file mode 100644
index 000000000000..2b27611c7f4b
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/mac.c
@@ -0,0 +1,1452 @@
+// SPDX-License-Identifier: ISC
+/* Copyright (C) 2023 MediaTek Inc. */
+
+#include <linux/devcoredump.h>
+#include <linux/etherdevice.h>
+#include <linux/timekeeping.h>
+#include "mt7925.h"
+#include "../dma.h"
+#include "mac.h"
+#include "mcu.h"
+
+bool mt7925_mac_wtbl_update(struct mt792x_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 void mt7925_mac_sta_poll(struct mt792x_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 mt792x_sta *msta;
+ u32 tx_time[IEEE80211_NUM_ACS], rx_time[IEEE80211_NUM_ACS];
+ LIST_HEAD(sta_poll_list);
+ struct rate_info *rate;
+ s8 rssi[4];
+ 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);
+
+ while (true) {
+ bool clear = false;
+ u32 addr, val;
+ u16 idx;
+ u8 bw;
+
+ if (list_empty(&sta_poll_list))
+ break;
+ msta = list_first_entry(&sta_poll_list,
+ struct mt792x_sta, wcid.poll_list);
+ spin_lock_bh(&dev->mt76.sta_poll_lock);
+ list_del_init(&msta->wcid.poll_list);
+ spin_unlock_bh(&dev->mt76.sta_poll_lock);
+
+ idx = msta->wcid.idx;
+ addr = mt7925_mac_wtbl_lmac_addr(dev, idx, MT_WTBL_AC0_CTT_OFFSET);
+
+ 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) {
+ mt7925_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 = 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);
+ }
+
+ /* We don't support reading GI info from txs packets.
+ * For accurate tx status reporting and AQL improvement,
+ * we need to make sure that flags match so polling GI
+ * from per-sta counters directly.
+ */
+ rate = &msta->wcid.rate;
+
+ switch (rate->bw) {
+ case RATE_INFO_BW_160:
+ bw = IEEE80211_STA_RX_BW_160;
+ break;
+ case RATE_INFO_BW_80:
+ bw = IEEE80211_STA_RX_BW_80;
+ break;
+ case RATE_INFO_BW_40:
+ bw = IEEE80211_STA_RX_BW_40;
+ break;
+ default:
+ bw = IEEE80211_STA_RX_BW_20;
+ break;
+ }
+
+ addr = mt7925_mac_wtbl_lmac_addr(dev, idx, 6);
+ val = mt76_rr(dev, addr);
+ if (rate->flags & RATE_INFO_FLAGS_EHT_MCS) {
+ addr = mt7925_mac_wtbl_lmac_addr(dev, idx, 5);
+ val = mt76_rr(dev, addr);
+ rate->eht_gi = FIELD_GET(GENMASK(25, 24), val);
+ } else if (rate->flags & RATE_INFO_FLAGS_HE_MCS) {
+ u8 offs = MT_WTBL_TXRX_RATE_G2_HE + 2 * bw;
+
+ rate->he_gi = (val & (0x3 << offs)) >> offs;
+ } else if (rate->flags &
+ (RATE_INFO_FLAGS_VHT_MCS | RATE_INFO_FLAGS_MCS)) {
+ if (val & BIT(MT_WTBL_TXRX_RATE_G2 + bw))
+ rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
+ else
+ rate->flags &= ~RATE_INFO_FLAGS_SHORT_GI;
+ }
+
+ /* get signal strength of resp frames (CTS/BA/ACK) */
+ addr = mt7925_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);
+
+ msta->ack_signal =
+ mt76_rx_signal(msta->vif->phy->mt76->antenna_mask, rssi);
+
+ ewma_avg_signal_add(&msta->avg_ack_signal, -msta->ack_signal);
+ }
+}
+
+void mt7925_mac_set_fixed_rate_table(struct mt792x_dev *dev,
+ u8 tbl_idx, u16 rate_idx)
+{
+ u32 ctrl = MT_WTBL_ITCR_WR | MT_WTBL_ITCR_EXEC | tbl_idx;
+
+ mt76_wr(dev, MT_WTBL_ITDR0, rate_idx);
+ /* use wtbl spe idx */
+ mt76_wr(dev, MT_WTBL_ITDR1, MT_WTBL_SPE_IDX_SEL);
+ mt76_wr(dev, MT_WTBL_ITCR, ctrl);
+}
+
+/* The HW does not translate the mac header to 802.3 for mesh point */
+static int mt7925_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 mt792x_sta *msta = (struct mt792x_sta *)status->wcid;
+ __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 = container_of((void *)msta, struct ieee80211_sta, drv_priv);
+ vif = container_of((void *)msta->vif, struct ieee80211_vif, drv_priv);
+
+ /* store the info from RXD and ethhdr to avoid being overridden */
+ 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, vif->bss_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:
+ break;
+ }
+
+ 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
+mt7925_mac_fill_rx_rate(struct mt792x_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;
+ 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 int
+mt7925_mac_fill_rx(struct mt792x_dev *dev, struct sk_buff *skb)
+{
+ u32 csum_mask = MT_RXD0_NORMAL_IP_SUM | MT_RXD0_NORMAL_UDP_TCP_SUM;
+ struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb;
+ bool hdr_trans, unicast, insert_ccmp_hdr = false;
+ u8 chfreq, qos_ctl = 0, remove_pad, amsdu_info;
+ u16 hdr_gap;
+ __le32 *rxv = NULL, *rxd = (__le32 *)skb->data;
+ struct mt76_phy *mphy = &dev->mt76.phy;
+ struct mt792x_phy *phy = &dev->phy;
+ struct ieee80211_supported_band *sband;
+ u32 csum_status = *(u32 *)skb->cb;
+ 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]);
+ struct mt792x_sta *msta = NULL;
+ u8 mode = 0; /* , band_idx; */
+ u16 seq_ctrl = 0;
+ __le16 fc = 0;
+ int idx;
+
+ memset(status, 0, sizeof(*status));
+
+ 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;
+
+ /* ICV error or CCMP/BIP/WPI MIC error */
+ if (rxd1 & MT_RXD1_NORMAL_ICV_ERR)
+ status->flag |= RX_FLAG_ONLY_MONITOR;
+
+ 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 = mt792x_rx_get_wcid(dev, idx, unicast);
+
+ if (status->wcid) {
+ msta = container_of(status->wcid, struct mt792x_sta, wcid);
+ spin_lock_bh(&dev->mt76.sta_poll_lock);
+ if (list_empty(&msta->wcid.poll_list))
+ list_add_tail(&msta->wcid.poll_list,
+ &dev->mt76.sta_poll_list);
+ spin_unlock_bh(&dev->mt76.sta_poll_lock);
+ }
+
+ mt792x_get_status_freq_info(status, chfreq);
+
+ switch (status->band) {
+ case NL80211_BAND_5GHZ:
+ sband = &mphy->sband_5g.sband;
+ break;
+ case NL80211_BAND_6GHZ:
+ sband = &mphy->sband_6g.sband;
+ break;
+ default:
+ sband = &mphy->sband_2g.sband;
+ break;
+ }
+
+ if (!sband->channels)
+ return -EINVAL;
+
+ if (mt76_is_mmio(&dev->mt76) && (rxd0 & csum_mask) == csum_mask &&
+ !(csum_status & (BIT(0) | BIT(2) | BIT(3))))
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+
+ if (rxd3 & 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]);
+
+ /* TODO: need to map rxd address */
+ fc = cpu_to_le16(FIELD_GET(MT_RXD8_FRAME_CONTROL, v0));
+ seq_ctrl = FIELD_GET(MT_RXD10_SEQ_CTRL, v2);
+ qos_ctl = FIELD_GET(MT_RXD10_QOS_CTL, 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;
+
+ /* all subframes of an A-MPDU have the same timestamp */
+ 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;
+ }
+
+ /* RXD Group 3 - P-RXV */
+ 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);
+
+ /* RXD Group 5 - C-RXV */
+ if (rxd1 & MT_RXD1_NORMAL_GROUP_5) {
+ rxd += 24;
+ if ((u8 *)rxd - skb->data >= skb->len)
+ return -EINVAL;
+ }
+
+ ret = mt7925_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;
+ }
+
+ hdr_gap = (u8 *)rxd - skb->data + 2 * remove_pad;
+ if (hdr_trans && ieee80211_has_morefrags(fc)) {
+ if (mt7925_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) {
+ pad_start = ieee80211_get_hdrlen_from_skb(skb);
+ } else if (hdr_trans && (rxd2 & MT_RXD2_NORMAL_HDR_TRANS_ERROR)) {
+ /* When header translation failure is indicated,
+ * the hardware will insert an extra 2-byte field
+ * containing the data length after the protocol
+ * type field.
+ */
+ 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)) {
+ seq_ctrl = le16_to_cpu(hdr->seq_ctrl);
+ qos_ctl = *ieee80211_get_qos_ctl(hdr);
+ }
+ } else {
+ status->flag |= RX_FLAG_8023;
+ }
+
+ mt792x_mac_assoc_rssi(dev, skb);
+
+ if (rxv && mode >= MT_PHY_TYPE_HE_SU && !(status->flag & RX_FLAG_8023))
+ mt76_connac3_mac_decode_he_radiotap(skb, rxv, mode);
+
+ if (!status->wcid || !ieee80211_is_data_qos(fc))
+ return 0;
+
+ status->aggr = unicast && !ieee80211_is_qos_nullfunc(fc);
+ status->seqno = IEEE80211_SEQ_TO_SN(seq_ctrl);
+ status->qos_ctl = qos_ctl;
+
+ return 0;
+}
+
+static void
+mt7925_mac_write_txwi_8023(__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;
+
+ 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);
+
+ 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);
+}
+
+static void
+mt7925_mac_write_txwi_80211(struct mt76_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)
+ 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 (key && multicast && ieee80211_is_robust_mgmt_frame(skb) &&
+ key->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
+ 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);
+
+ 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_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);
+ txwi[3] &= ~cpu_to_le32(MT_TXD3_HW_AMSDU);
+ }
+}
+
+void
+mt7925_mac_write_txwi(struct mt76_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_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_vif *vif = info->control.vif;
+ u8 p_fmt, q_idx, omac_idx = 0, wmm_idx = 0, band_idx = 0;
+ u32 val, sz_txd = mt76_is_mmio(dev) ? MT_TXD_SIZE : MT_SDIO_TXD_SIZE;
+ bool is_8023 = info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP;
+ struct mt76_vif *mvif;
+ bool beacon = !!(changed & (BSS_CHANGED_BEACON |
+ BSS_CHANGED_BEACON_ENABLED));
+ bool inband_disc = !!(changed & (BSS_CHANGED_UNSOL_BCAST_PROBE_RESP |
+ BSS_CHANGED_FILS_DISCOVERY));
+
+ mvif = vif ? (struct mt76_vif *)vif->drv_priv : NULL;
+ if (mvif) {
+ omac_idx = mvif->omac_idx;
+ wmm_idx = mvif->wmm_idx;
+ band_idx = mvif->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 = mt76_is_mmio(dev) ? MT_TX_TYPE_CT : MT_TX_TYPE_SF;
+ q_idx = MT_LMAC_ALTX0;
+ } else {
+ p_fmt = mt76_is_mmio(dev) ? MT_TX_TYPE_CT : MT_TX_TYPE_SF;
+ q_idx = wmm_idx * MT76_CONNAC_MAX_WMM_SETS +
+ mt76_connac_lmac_mapping(skb_get_queue_mapping(skb));
+
+ /* counting non-offloading skbs */
+ wcid->stats.tx_bytes += skb->len;
+ wcid->stats.tx_packets++;
+ }
+
+ val = FIELD_PREP(MT_TXD0_TX_BYTES, skb->len + sz_txd) |
+ 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 = FIELD_PREP(MT_TXD3_REM_TX_COUNT, 15);
+
+ if (key)
+ val |= MT_TXD3_PROTECT_FRAME;
+ if (info->flags & IEEE80211_TX_CTL_NO_ACK)
+ val |= MT_TXD3_NO_ACK;
+ if (wcid->amsdu)
+ val |= MT_TXD3_HW_AMSDU;
+
+ 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[3] |= cpu_to_le32(MT_TXD3_BA_DISABLE);
+ txwi[3] &= ~cpu_to_le32(MT_TXD3_HW_AMSDU);
+ }
+
+ txwi[5] = cpu_to_le32(val);
+
+ val = MT_TXD6_DIS_MAT | MT_TXD6_DAS |
+ FIELD_PREP(MT_TXD6_MSDU_CNT, 1);
+ txwi[6] = cpu_to_le32(val);
+ txwi[7] = 0;
+
+ if (is_8023)
+ mt7925_mac_write_txwi_8023(txwi, skb, wcid);
+ else
+ mt7925_mac_write_txwi_80211(dev, txwi, skb, key);
+
+ if (txwi[1] & cpu_to_le32(MT_TXD1_FIXED_RATE)) {
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ bool mcast = ieee80211_is_data(hdr->frame_control) &&
+ is_multicast_ether_addr(hdr->addr1);
+ u8 idx = MT792x_BASIC_RATES_TBL;
+
+ if (mvif) {
+ if (mcast && mvif->mcast_rates_idx)
+ idx = mvif->mcast_rates_idx;
+ else if (beacon && mvif->beacon_rates_idx)
+ idx = mvif->beacon_rates_idx;
+ else
+ idx = mvif->basic_rates_idx;
+ }
+
+ txwi[6] |= cpu_to_le32(FIELD_PREP(MT_TXD6_TX_RATE, idx));
+ txwi[3] |= cpu_to_le32(MT_TXD3_BA_DISABLE);
+ }
+}
+EXPORT_SYMBOL_GPL(mt7925_mac_write_txwi);
+
+static void mt7925_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi)
+{
+ struct mt792x_sta *msta;
+ u16 fc, tid;
+ u32 val;
+
+ if (!sta || !(sta->deflink.ht_cap.ht_supported || sta->deflink.he_cap.has_he))
+ return;
+
+ tid = le32_get_bits(txwi[1], MT_TXD1_TID);
+ 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 mt792x_sta *)sta->drv_priv;
+ if (!test_and_set_bit(tid, &msta->wcid.ampdu_state))
+ ieee80211_start_tx_ba_session(sta, tid, 0);
+}
+
+static bool
+mt7925_mac_add_txs_skb(struct mt792x_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;
+ bool cck = false;
+ u32 txrate, txs, mode, stbc;
+
+ mt76_tx_status_lock(mdev, &list);
+ skb = mt76_tx_status_skb_get(mdev, wcid, pid, &list);
+ if (!skb)
+ goto out_no_skb;
+
+ txs = le32_to_cpu(txs_data[0]);
+
+ 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;
+
+ 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;
+ 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_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:
+ mt76_tx_status_skb_done(mdev, skb, &list);
+
+out_no_skb:
+ mt76_tx_status_unlock(mdev, &list);
+
+ return !!skb;
+}
+
+void mt7925_mac_add_txs(struct mt792x_dev *dev, void *data)
+{
+ struct mt792x_sta *msta = NULL;
+ struct mt76_wcid *wcid;
+ __le32 *txs_data = data;
+ u16 wcidx;
+ u8 pid;
+
+ if (le32_get_bits(txs_data[0], MT_TXS0_TXS_FORMAT) > 1)
+ return;
+
+ 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_FIRST)
+ return;
+
+ if (wcidx >= MT792x_WTBL_SIZE)
+ return;
+
+ rcu_read_lock();
+
+ wcid = rcu_dereference(dev->mt76.wcid[wcidx]);
+ if (!wcid)
+ goto out;
+
+ msta = container_of(wcid, struct mt792x_sta, wcid);
+
+ mt7925_mac_add_txs_skb(dev, wcid, pid, txs_data);
+ if (!wcid->sta)
+ goto out;
+
+ spin_lock_bh(&dev->mt76.sta_poll_lock);
+ if (list_empty(&msta->wcid.poll_list))
+ list_add_tail(&msta->wcid.poll_list, &dev->mt76.sta_poll_list);
+ spin_unlock_bh(&dev->mt76.sta_poll_lock);
+
+out:
+ rcu_read_unlock();
+}
+
+void mt7925_txwi_free(struct mt792x_dev *dev, struct mt76_txwi_cache *t,
+ struct ieee80211_sta *sta, bool clear_status,
+ 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 (sta) {
+ struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv;
+
+ if (likely(t->skb->protocol != cpu_to_be16(ETH_P_PAE)))
+ mt7925_tx_check_aggr(sta, txwi);
+
+ wcid_idx = wcid->idx;
+ } else {
+ wcid_idx = le32_get_bits(txwi[1], MT_TXD1_WLAN_IDX);
+ }
+
+ __mt76_tx_complete_skb(mdev, wcid_idx, t->skb, free_list);
+out:
+ t->skb = NULL;
+ mt76_put_txwi(mdev, t);
+}
+EXPORT_SYMBOL_GPL(mt7925_txwi_free);
+
+static void
+mt7925_mac_tx_free(struct mt792x_dev *dev, void *data, int len)
+{
+ __le32 *tx_free = (__le32 *)data, *cur_info;
+ struct mt76_dev *mdev = &dev->mt76;
+ struct mt76_txwi_cache *txwi;
+ struct ieee80211_sta *sta = NULL;
+ 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;
+
+ /* 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);
+
+ if (WARN_ON_ONCE(le32_get_bits(tx_free[1], MT_TXFREE1_VER) < 4))
+ 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;
+ /* 1'b1: new wcid pair.
+ * 1'b0: msdu_id with the same 'wcid pair' as above.
+ */
+ info = le32_to_cpu(*cur_info);
+ if (info & MT_TXFREE_INFO_PAIR) {
+ struct mt792x_sta *msta;
+ u16 idx;
+
+ idx = FIELD_GET(MT_TXFREE_INFO_WLAN_ID, info);
+ wcid = rcu_dereference(dev->mt76.wcid[idx]);
+ sta = wcid_to_sta(wcid);
+ if (!sta)
+ continue;
+
+ msta = container_of(wcid, struct mt792x_sta, wcid);
+ spin_lock_bh(&mdev->sta_poll_lock);
+ if (list_empty(&msta->wcid.poll_list))
+ list_add_tail(&msta->wcid.poll_list,
+ &mdev->sta_poll_list);
+ spin_unlock_bh(&mdev->sta_poll_lock);
+ continue;
+ }
+
+ if (info & MT_TXFREE_INFO_HEADER) {
+ if (wcid) {
+ wcid->stats.tx_retries +=
+ FIELD_GET(MT_TXFREE_INFO_COUNT, info) - 1;
+ wcid->stats.tx_failed +=
+ !!FIELD_GET(MT_TXFREE_INFO_STAT, info);
+ }
+ 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;
+
+ mt7925_txwi_free(dev, txwi, sta, 0, &free_list);
+ }
+ }
+
+ mt7925_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);
+ }
+}
+
+bool mt7925_rx_check(struct mt76_dev *mdev, void *data, int len)
+{
+ struct mt792x_dev *dev = container_of(mdev, struct mt792x_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:
+ /* PKT_TYPE_TXRX_NOTIFY can be received only by mmio devices */
+ mt7925_mac_tx_free(dev, data, len); /* mmio */
+ return false;
+ case PKT_TYPE_TXS:
+ for (rxd += 4; rxd + 12 <= end; rxd += 12)
+ mt7925_mac_add_txs(dev, rxd);
+ return false;
+ default:
+ return true;
+ }
+}
+EXPORT_SYMBOL_GPL(mt7925_rx_check);
+
+void mt7925_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
+ struct sk_buff *skb, u32 *info)
+{
+ struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
+ __le32 *rxd = (__le32 *)skb->data;
+ __le32 *end = (__le32 *)&skb->data[skb->len];
+ enum rx_pkt_type type;
+ u16 flag;
+
+ type = le32_get_bits(rxd[0], MT_RXD0_PKT_TYPE);
+ flag = le32_get_bits(rxd[0], MT_RXD0_PKT_FLAG);
+ 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;
+ }
+
+ if (type == PKT_TYPE_RX_EVENT && flag == 0x1)
+ type = PKT_TYPE_NORMAL_MCU;
+
+ switch (type) {
+ case PKT_TYPE_TXRX_NOTIFY:
+ /* PKT_TYPE_TXRX_NOTIFY can be received only by mmio devices */
+ mt7925_mac_tx_free(dev, skb->data, skb->len);
+ napi_consume_skb(skb, 1);
+ break;
+ case PKT_TYPE_RX_EVENT:
+ mt7925_mcu_rx_event(dev, skb);
+ break;
+ case PKT_TYPE_TXS:
+ for (rxd += 2; rxd + 8 <= end; rxd += 8)
+ mt7925_mac_add_txs(dev, rxd);
+ dev_kfree_skb(skb);
+ break;
+ case PKT_TYPE_NORMAL_MCU:
+ case PKT_TYPE_NORMAL:
+ if (!mt7925_mac_fill_rx(dev, skb)) {
+ mt76_rx(&dev->mt76, q, skb);
+ return;
+ }
+ fallthrough;
+ default:
+ dev_kfree_skb(skb);
+ break;
+ }
+}
+EXPORT_SYMBOL_GPL(mt7925_queue_rx_skb);
+
+static void
+mt7925_vif_connect_iter(void *priv, u8 *mac,
+ struct ieee80211_vif *vif)
+{
+ struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
+ struct mt792x_dev *dev = mvif->phy->dev;
+ struct ieee80211_hw *hw = mt76_hw(dev);
+
+ if (vif->type == NL80211_IFTYPE_STATION)
+ ieee80211_disconnect(vif, true);
+
+ mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.wcid, true);
+ mt7925_mcu_set_tx(dev, vif);
+
+ if (vif->type == NL80211_IFTYPE_AP) {
+ mt76_connac_mcu_uni_add_bss(dev->phy.mt76, vif, &mvif->sta.wcid,
+ true, NULL);
+ mt7925_mcu_sta_update(dev, NULL, vif, true,
+ MT76_STA_INFO_STATE_NONE);
+ mt7925_mcu_uni_add_beacon_offload(dev, hw, vif, true);
+ }
+}
+
+/* system error recovery */
+void mt7925_mac_reset_work(struct work_struct *work)
+{
+ struct mt792x_dev *dev = container_of(work, struct mt792x_dev,
+ reset_work);
+ struct ieee80211_hw *hw = mt76_hw(dev);
+ struct mt76_connac_pm *pm = &dev->pm;
+ int i, ret;
+
+ dev_dbg(dev->mt76.dev, "chip reset\n");
+ dev->hw_full_reset = true;
+ ieee80211_stop_queues(hw);
+
+ cancel_delayed_work_sync(&dev->mphy.mac_work);
+ cancel_delayed_work_sync(&pm->ps_work);
+ cancel_work_sync(&pm->wake_work);
+
+ for (i = 0; i < 10; i++) {
+ mutex_lock(&dev->mt76.mutex);
+ ret = mt792x_dev_reset(dev);
+ mutex_unlock(&dev->mt76.mutex);
+
+ if (!ret)
+ break;
+ }
+
+ if (i == 10)
+ dev_err(dev->mt76.dev, "chip reset failed\n");
+
+ if (test_and_clear_bit(MT76_HW_SCANNING, &dev->mphy.state)) {
+ struct cfg80211_scan_info info = {
+ .aborted = true,
+ };
+
+ ieee80211_scan_completed(dev->mphy.hw, &info);
+ }
+
+ dev->hw_full_reset = false;
+ pm->suspended = false;
+ ieee80211_wake_queues(hw);
+ ieee80211_iterate_active_interfaces(hw,
+ IEEE80211_IFACE_ITER_RESUME_ALL,
+ mt7925_vif_connect_iter, NULL);
+ mt76_connac_power_save_sched(&dev->mt76.phy, pm);
+}
+
+void mt7925_coredump_work(struct work_struct *work)
+{
+ struct mt792x_dev *dev;
+ char *dump, *data;
+
+ dev = (struct mt792x_dev *)container_of(work, struct mt792x_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 mt7925_mcu_rxd) + 8);
+ if (!dump || 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);
+ }
+
+ if (dump)
+ dev_coredumpv(dev->mt76.dev, dump, MT76_CONNAC_COREDUMP_SZ,
+ GFP_KERNEL);
+
+ mt792x_reset(&dev->mt76);
+}
+
+/* usb_sdio */
+static void
+mt7925_usb_sdio_write_txwi(struct mt792x_dev *dev, struct mt76_wcid *wcid,
+ enum mt76_txq_id qid, struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key, int pid,
+ struct sk_buff *skb)
+{
+ __le32 *txwi = (__le32 *)(skb->data - MT_SDIO_TXD_SIZE);
+
+ memset(txwi, 0, MT_SDIO_TXD_SIZE);
+ mt7925_mac_write_txwi(&dev->mt76, txwi, skb, wcid, key, pid, qid, 0);
+ skb_push(skb, MT_SDIO_TXD_SIZE);
+}
+
+int mt7925_usb_sdio_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 mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb);
+ struct ieee80211_key_conf *key = info->control.hw_key;
+ struct sk_buff *skb = tx_info->skb;
+ int err, pad, pktid;
+
+ if (unlikely(tx_info->skb->len <= ETH_HLEN))
+ return -EINVAL;
+
+ if (!wcid)
+ wcid = &dev->mt76.global_wcid;
+
+ if (sta) {
+ struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
+
+ if (time_after(jiffies, msta->last_txs + HZ / 4)) {
+ info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
+ msta->last_txs = jiffies;
+ }
+ }
+
+ pktid = mt76_tx_status_skb_add(&dev->mt76, wcid, skb);
+ mt7925_usb_sdio_write_txwi(dev, wcid, qid, sta, key, pktid, skb);
+
+ mt7925_skb_add_usb_sdio_hdr(dev, skb, 0);
+ pad = round_up(skb->len, 4) - skb->len;
+ if (mt76_is_usb(mdev))
+ pad += 4;
+
+ err = mt76_skb_adjust_pad(skb, pad);
+ if (err)
+ /* Release pktid in case of error. */
+ idr_remove(&wcid->pktid, pktid);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(mt7925_usb_sdio_tx_prepare_skb);
+
+void mt7925_usb_sdio_tx_complete_skb(struct mt76_dev *mdev,
+ struct mt76_queue_entry *e)
+{
+ __le32 *txwi = (__le32 *)(e->skb->data + MT_SDIO_HDR_SIZE);
+ unsigned int headroom = MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
+ struct ieee80211_sta *sta;
+ struct mt76_wcid *wcid;
+ u16 idx;
+
+ idx = le32_get_bits(txwi[1], MT_TXD1_WLAN_IDX);
+ wcid = rcu_dereference(mdev->wcid[idx]);
+ sta = wcid_to_sta(wcid);
+
+ if (sta && likely(e->skb->protocol != cpu_to_be16(ETH_P_PAE)))
+ mt7925_tx_check_aggr(sta, txwi);
+
+ skb_pull(e->skb, headroom);
+ mt76_tx_complete_skb(mdev, e->wcid, e->skb);
+}
+EXPORT_SYMBOL_GPL(mt7925_usb_sdio_tx_complete_skb);
+
+bool mt7925_usb_sdio_tx_status_data(struct mt76_dev *mdev, u8 *update)
+{
+ struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
+
+ mt792x_mutex_acquire(dev);
+ mt7925_mac_sta_poll(dev);
+ mt792x_mutex_release(dev);
+
+ return false;
+}
+EXPORT_SYMBOL_GPL(mt7925_usb_sdio_tx_status_data);
+
+#if IS_ENABLED(CONFIG_IPV6)
+void mt7925_set_ipv6_ns_work(struct work_struct *work)
+{
+ struct mt792x_dev *dev = container_of(work, struct mt792x_dev,
+ ipv6_ns_work);
+ struct sk_buff *skb;
+ int ret = 0;
+
+ do {
+ skb = skb_dequeue(&dev->ipv6_ns_list);
+
+ if (!skb)
+ break;
+
+ mt792x_mutex_acquire(dev);
+ ret = mt76_mcu_skb_send_msg(&dev->mt76, skb,
+ MCU_UNI_CMD(OFFLOAD), true);
+ mt792x_mutex_release(dev);
+
+ } while (!ret);
+
+ if (ret)
+ skb_queue_purge(&dev->ipv6_ns_list);
+}
+#endif
--
2.18.0
