Introduce the capability to reset mt7996 chipset if requested by wed
driver.
Signed-off-by: Lorenzo Bianconi <[email protected]>
---
drivers/net/wireless/mediatek/mt76/dma.c | 14 ++++--
.../net/wireless/mediatek/mt76/mt7996/dma.c | 18 +++++--
.../net/wireless/mediatek/mt76/mt7996/mac.c | 47 ++++++++++++++++++-
.../net/wireless/mediatek/mt76/mt7996/mmio.c | 37 +++++++++++++++
.../net/wireless/mediatek/mt76/mt7996/regs.h | 7 ++-
5 files changed, 114 insertions(+), 9 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c
index 71f07deeeaab..d0067b8dbbc8 100644
--- a/drivers/net/wireless/mediatek/mt76/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/dma.c
@@ -854,10 +854,16 @@ mt76_dma_rx_reset(struct mt76_dev *dev, enum mt76_rxq_id qid)
/* reset WED rx queues */
mt76_dma_wed_setup(dev, q, true);
- if (!mt76_queue_is_wed_tx_free(q)) {
- mt76_dma_sync_idx(dev, q);
- mt76_dma_rx_fill(dev, q, false);
- }
+
+ if (mt76_queue_is_wed_tx_free(q))
+ return;
+
+ if (mtk_wed_device_active(&dev->mmio.wed) &&
+ mt76_queue_is_wed_rro(q))
+ return;
+
+ mt76_dma_sync_idx(dev, q);
+ mt76_dma_rx_fill(dev, q, false);
}
static void
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/dma.c b/drivers/net/wireless/mediatek/mt76/mt7996/dma.c
index 2221d22ccffb..8bc08d993085 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/dma.c
@@ -621,21 +621,33 @@ void mt7996_dma_reset(struct mt7996_dev *dev, bool force)
if (force)
mt7996_wfsys_reset(dev);
+ if (dev->hif2 && mtk_wed_device_active(&dev->mt76.mmio.wed_hif2))
+ mtk_wed_device_dma_reset(&dev->mt76.mmio.wed_hif2);
+
+ if (mtk_wed_device_active(&dev->mt76.mmio.wed))
+ mtk_wed_device_dma_reset(&dev->mt76.mmio.wed);
+
mt7996_dma_disable(dev, force);
+ mt76_dma_wed_reset(&dev->mt76);
/* reset hw queues */
for (i = 0; i < __MT_TXQ_MAX; i++) {
- mt76_queue_reset(dev, dev->mphy.q_tx[i]);
+ mt76_dma_reset_tx_queue(&dev->mt76, dev->mphy.q_tx[i]);
if (phy2)
- mt76_queue_reset(dev, phy2->q_tx[i]);
+ mt76_dma_reset_tx_queue(&dev->mt76, phy2->q_tx[i]);
if (phy3)
- mt76_queue_reset(dev, phy3->q_tx[i]);
+ mt76_dma_reset_tx_queue(&dev->mt76, phy3->q_tx[i]);
}
for (i = 0; i < __MT_MCUQ_MAX; i++)
mt76_queue_reset(dev, dev->mt76.q_mcu[i]);
mt76_for_each_q_rx(&dev->mt76, i) {
+ if (mtk_wed_device_active(&dev->mt76.mmio.wed))
+ if (mt76_queue_is_wed_rro(&dev->mt76.q_rx[i]) ||
+ mt76_queue_is_wed_tx_free(&dev->mt76.q_rx[i]))
+ continue;
+
mt76_queue_reset(dev, &dev->mt76.q_rx[i]);
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
index c79e1b4588b4..236a88b50e97 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
@@ -1712,6 +1712,10 @@ mt7996_mac_restart(struct mt7996_dev *dev)
/* disable all tx/rx napi */
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]);
}
@@ -1725,6 +1729,10 @@ mt7996_mac_restart(struct mt7996_dev *dev)
local_bh_disable();
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]);
napi_schedule(&dev->mt76.napi[i]);
@@ -1896,6 +1904,13 @@ void mt7996_mac_reset_work(struct work_struct *work)
dev_info(dev->mt76.dev,"\n%s L1 SER recovery start.",
wiphy_name(dev->mt76.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));
if (phy2)
ieee80211_stop_queues(phy2->mt76->hw);
@@ -1915,8 +1930,13 @@ void mt7996_mac_reset_work(struct work_struct *work)
cancel_delayed_work_sync(&phy3->mt76->mac_work);
}
mt76_worker_disable(&dev->mt76.tx_worker);
- mt76_for_each_q_rx(&dev->mt76, i)
+ 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);
@@ -1939,6 +1959,27 @@ void mt7996_mac_reset_work(struct work_struct *work)
/* enable DMA Tx/Tx and interrupt */
mt7996_dma_start(dev, false, false);
+ if (mtk_wed_device_active(&dev->mt76.mmio.wed)) {
+ u32 wed_irq_mask = MT_INT_RRO_RX_DONE | MT_INT_TX_DONE_BAND2 |
+ dev->mt76.mmio.irqmask;
+
+ if (mtk_wed_get_rx_capa(&dev->mt76.mmio.wed))
+ wed_irq_mask &= ~MT_INT_RX_DONE_RRO_IND;
+
+ 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);
clear_bit(MT76_RESET, &dev->mphy.state);
if (phy2)
@@ -1948,6 +1989,10 @@ void mt7996_mac_reset_work(struct work_struct *work)
local_bh_disable();
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]);
napi_schedule(&dev->mt76.napi[i]);
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c b/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c
index c7b6d4bd2ded..739d7f53d347 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mmio.c
@@ -6,9 +6,11 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
+#include <linux/rtnetlink.h>
#include "mt7996.h"
#include "mac.h"
+#include "mcu.h"
#include "../trace.h"
#include "../dma.h"
@@ -195,6 +197,37 @@ static u32 mt7996_rmw(struct mt76_dev *mdev, u32 offset, u32 mask, u32 val)
return dev->bus_ops->rmw(mdev, __mt7996_reg_addr(dev, offset), mask, val);
}
+#ifdef CONFIG_NET_MEDIATEK_SOC_WED
+static int mt7996_mmio_wed_reset(struct mtk_wed_device *wed)
+{
+ struct mt76_dev *mdev = container_of(wed, struct mt76_dev, mmio.wed);
+ struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76);
+ struct mt76_phy *mphy = &dev->mphy;
+ int ret;
+
+ ASSERT_RTNL();
+
+ if (test_and_set_bit(MT76_STATE_WED_RESET, &mphy->state))
+ return -EBUSY;
+
+ ret = mt7996_mcu_set_ser(dev, UNI_CMD_SER_TRIGGER, UNI_CMD_SER_SET_RECOVER_L1,
+ mphy->band_idx);
+ if (ret)
+ goto out;
+
+ rtnl_unlock();
+ if (!wait_for_completion_timeout(&mdev->mmio.wed_reset, 20 * HZ)) {
+ dev_err(mdev->dev, "wed reset timeout\n");
+ ret = -ETIMEDOUT;
+ }
+ rtnl_lock();
+out:
+ clear_bit(MT76_STATE_WED_RESET, &mphy->state);
+
+ return ret;
+}
+#endif
+
int mt7996_mmio_wed_init(struct mt7996_dev *dev, void *pdev_ptr,
bool hif2, int *irq)
{
@@ -311,6 +344,10 @@ int mt7996_mmio_wed_init(struct mt7996_dev *dev, void *pdev_ptr,
wed->wlan.release_rx_buf = mt76_mmio_wed_release_rx_buf;
wed->wlan.offload_enable = mt76_mmio_wed_offload_enable;
wed->wlan.offload_disable = mt76_mmio_wed_offload_disable;
+ if (!hif2) {
+ wed->wlan.reset = mt7996_mmio_wed_reset;
+ wed->wlan.reset_complete = mt76_mmio_wed_reset_complete;
+ }
if (mtk_wed_device_attach(wed))
return 0;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/regs.h b/drivers/net/wireless/mediatek/mt76/mt7996/regs.h
index 7cefe8985590..49eb583399c5 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/regs.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/regs.h
@@ -455,8 +455,9 @@ enum base_rev {
#define MT_INT_RX_DONE_WA_TRI BIT(3)
#define MT_INT_RX_TXFREE_MAIN BIT(17)
#define MT_INT_RX_TXFREE_TRI BIT(15)
-#define MT_INT_MCU_CMD BIT(29)
+#define MT_INT_RX_DONE_BAND2_EXT BIT(23)
#define MT_INT_RX_TXFREE_EXT BIT(26)
+#define MT_INT_MCU_CMD BIT(29)
#define MT_INT_RX_DONE_RRO_BAND0 BIT(16)
#define MT_INT_RX_DONE_RRO_BAND1 BIT(16)
@@ -506,6 +507,10 @@ enum base_rev {
#define MT_INT_TX_DONE_BAND1 BIT(31)
#define MT_INT_TX_DONE_BAND2 BIT(15)
+#define MT_INT_TX_RX_DONE_EXT (MT_INT_TX_DONE_BAND2 | \
+ MT_INT_RX_DONE_BAND2_EXT | \
+ MT_INT_RX_TXFREE_EXT)
+
#define MT_INT_TX_DONE_MCU (MT_INT_TX_MCU(MT_MCUQ_WA) | \
MT_INT_TX_MCU(MT_MCUQ_WM) | \
MT_INT_TX_MCU(MT_MCUQ_FWDL))
--
2.41.0