(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>
---
.../wireless/mediatek/mt76/mt7925/pci_mac.c | 151 ++++++++++++++++++
1 file changed, 151 insertions(+)
create mode 100644 drivers/net/wireless/mediatek/mt76/mt7925/pci_mac.c
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/pci_mac.c b/drivers/net/wireless/mediatek/mt76/mt7925/pci_mac.c
new file mode 100644
index 000000000000..c3c69951d42e
--- /dev/null
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/pci_mac.c
@@ -0,0 +1,151 @@
+// SPDX-License-Identifier: ISC
+/* Copyright (C) 2023 MediaTek Inc. */
+
+#include "mt7925.h"
+#include "../dma.h"
+#include "mac.h"
+
+int mt7925e_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 mt76_connac_hw_txp *txp;
+ struct mt76_txwi_cache *t;
+ int id, pid;
+ u8 *txwi = (u8 *)txwi_ptr;
+
+ if (unlikely(tx_info->skb->len <= ETH_HLEN))
+ return -EINVAL;
+
+ if (!wcid)
+ wcid = &dev->mt76.global_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 (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;
+ }
+ }
+
+ pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb);
+ mt7925_mac_write_txwi(mdev, txwi_ptr, tx_info->skb, wcid, key,
+ pid, qid, 0);
+
+ txp = (struct mt76_connac_hw_txp *)(txwi + MT_TXD_SIZE);
+ memset(txp, 0, sizeof(struct mt76_connac_hw_txp));
+ mt76_connac_write_hw_txp(mdev, tx_info, txp, id);
+
+ tx_info->skb = DMA_DUMMY_DATA;
+
+ return 0;
+}
+
+void mt7925_tx_token_put(struct mt792x_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) {
+ mt7925_txwi_free(dev, txwi, NULL, false, NULL);
+ dev->mt76.token_count--;
+ }
+ spin_unlock_bh(&dev->mt76.token_lock);
+ idr_destroy(&dev->mt76.token);
+}
+
+int mt7925e_mac_reset(struct mt792x_dev *dev)
+{
+ const struct mt792x_irq_map *irq_map = dev->irq_map;
+ int i, err;
+
+ mt792xe_mcu_drv_pmctrl(dev);
+
+ mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
+
+ mt76_wr(dev, dev->irq_map->host_irq_enable, 0);
+ mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0x0);
+
+ set_bit(MT76_RESET, &dev->mphy.state);
+ set_bit(MT76_MCU_RESET, &dev->mphy.state);
+ wake_up(&dev->mt76.mcu.wait);
+ skb_queue_purge(&dev->mt76.mcu.res_q);
+
+ mt76_txq_schedule_all(&dev->mphy);
+
+ mt76_worker_disable(&dev->mt76.tx_worker);
+ if (irq_map->rx.data_complete_mask)
+ napi_disable(&dev->mt76.napi[MT_RXQ_MAIN]);
+ if (irq_map->rx.wm_complete_mask)
+ napi_disable(&dev->mt76.napi[MT_RXQ_MCU]);
+ if (irq_map->rx.wm2_complete_mask)
+ napi_disable(&dev->mt76.napi[MT_RXQ_MCU_WA]);
+ if (irq_map->tx.all_complete_mask)
+ napi_disable(&dev->mt76.tx_napi);
+
+ mt7925_tx_token_put(dev);
+ idr_init(&dev->mt76.token);
+
+ mt792x_wpdma_reset(dev, true);
+
+ local_bh_disable();
+ mt76_for_each_q_rx(&dev->mt76, i) {
+ napi_enable(&dev->mt76.napi[i]);
+ napi_schedule(&dev->mt76.napi[i]);
+ }
+ local_bh_enable();
+
+ dev->fw_assert = false;
+ clear_bit(MT76_MCU_RESET, &dev->mphy.state);
+
+ mt76_wr(dev, dev->irq_map->host_irq_enable,
+ dev->irq_map->tx.all_complete_mask |
+ MT_INT_RX_DONE_ALL | MT_INT_MCU_CMD);
+ mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
+
+ err = mt792xe_mcu_fw_pmctrl(dev);
+ if (err)
+ return err;
+
+ err = __mt792xe_mcu_drv_pmctrl(dev);
+ if (err)
+ goto out;
+
+ err = mt7925_run_firmware(dev);
+ if (err)
+ goto out;
+
+ err = mt7925_mcu_set_eeprom(dev);
+ if (err)
+ goto out;
+
+ err = mt7925_mac_init(dev);
+ if (err)
+ goto out;
+
+ err = __mt7925_start(&dev->phy);
+out:
+ clear_bit(MT76_RESET, &dev->mphy.state);
+
+ local_bh_disable();
+ napi_enable(&dev->mt76.tx_napi);
+ napi_schedule(&dev->mt76.tx_napi);
+ local_bh_enable();
+
+ mt76_worker_enable(&dev->mt76.tx_worker);
+
+ return err;
+}
--
2.18.0
