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Message-Id: <26fa16f2f212bff5edfdbe8a4f41dba7a132b0be.1670072570.git.lorenzo@kernel.org>
Date: Sat, 3 Dec 2022 14:06:30 +0100
From: Lorenzo Bianconi <lorenzo@...nel.org>
To: netdev@...r.kernel.org
Cc: nbd@....name, john@...ozen.org, sean.wang@...iatek.com,
Mark-MC.Lee@...iatek.com, davem@...emloft.net, edumazet@...gle.com,
kuba@...nel.org, pabeni@...hat.com, matthias.bgg@...il.com,
linux-mediatek@...ts.infradead.org, sujuan.chen@...iatek.com,
lorenzo.bianconi@...hat.com
Subject: [PATCH net-next] net: ethernet: mtk_wed: add reset to rx_ring_setup callback
Introduce reset parameter to mtk_wed_rx_ring_setup signature.
This is a preliminary patch to add Wireless Ethernet Dispatcher reset
support.
Co-developed-by: Sujuan Chen <sujuan.chen@...iatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@...iatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
---
drivers/net/ethernet/mediatek/mtk_wed.c | 20 +++++++++++++-------
drivers/net/wireless/mediatek/mt76/dma.c | 2 +-
include/linux/soc/mediatek/mtk_wed.h | 8 ++++----
3 files changed, 18 insertions(+), 12 deletions(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c
index 6352abd4157e..b1ec3f353b66 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -1216,7 +1216,8 @@ mtk_wed_wdma_rx_ring_setup(struct mtk_wed_device *dev, int idx, int size,
}
static int
-mtk_wed_wdma_tx_ring_setup(struct mtk_wed_device *dev, int idx, int size)
+mtk_wed_wdma_tx_ring_setup(struct mtk_wed_device *dev, int idx, int size,
+ bool reset)
{
u32 desc_size = sizeof(struct mtk_wdma_desc) * dev->hw->version;
struct mtk_wed_ring *wdma;
@@ -1225,8 +1226,8 @@ mtk_wed_wdma_tx_ring_setup(struct mtk_wed_device *dev, int idx, int size)
return -EINVAL;
wdma = &dev->tx_wdma[idx];
- if (mtk_wed_ring_alloc(dev, wdma, MTK_WED_WDMA_RING_SIZE, desc_size,
- true))
+ if (!reset && mtk_wed_ring_alloc(dev, wdma, MTK_WED_WDMA_RING_SIZE,
+ desc_size, true))
return -ENOMEM;
wdma_w32(dev, MTK_WDMA_RING_TX(idx) + MTK_WED_RING_OFS_BASE,
@@ -1236,6 +1237,9 @@ mtk_wed_wdma_tx_ring_setup(struct mtk_wed_device *dev, int idx, int size)
wdma_w32(dev, MTK_WDMA_RING_TX(idx) + MTK_WED_RING_OFS_CPU_IDX, 0);
wdma_w32(dev, MTK_WDMA_RING_TX(idx) + MTK_WED_RING_OFS_DMA_IDX, 0);
+ if (reset)
+ mtk_wed_ring_reset(wdma, MTK_WED_WDMA_RING_SIZE, true);
+
if (!idx) {
wed_w32(dev, MTK_WED_WDMA_RING_TX + MTK_WED_RING_OFS_BASE,
wdma->desc_phys);
@@ -1577,18 +1581,20 @@ mtk_wed_txfree_ring_setup(struct mtk_wed_device *dev, void __iomem *regs)
}
static int
-mtk_wed_rx_ring_setup(struct mtk_wed_device *dev, int idx, void __iomem *regs)
+mtk_wed_rx_ring_setup(struct mtk_wed_device *dev, int idx, void __iomem *regs,
+ bool reset)
{
struct mtk_wed_ring *ring = &dev->rx_ring[idx];
if (WARN_ON(idx >= ARRAY_SIZE(dev->rx_ring)))
return -EINVAL;
- if (mtk_wed_ring_alloc(dev, ring, MTK_WED_RX_RING_SIZE,
- sizeof(*ring->desc), false))
+ if (!reset && mtk_wed_ring_alloc(dev, ring, MTK_WED_RX_RING_SIZE,
+ sizeof(*ring->desc), false))
return -ENOMEM;
- if (mtk_wed_wdma_tx_ring_setup(dev, idx, MTK_WED_WDMA_RING_SIZE))
+ if (mtk_wed_wdma_tx_ring_setup(dev, idx, MTK_WED_WDMA_RING_SIZE,
+ reset))
return -ENOMEM;
ring->reg_base = MTK_WED_RING_RX_DATA(idx);
diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c
index 3f8c0845fcca..f795548562f5 100644
--- a/drivers/net/wireless/mediatek/mt76/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/dma.c
@@ -648,7 +648,7 @@ mt76_dma_wed_setup(struct mt76_dev *dev, struct mt76_queue *q)
q->wed_regs = wed->txfree_ring.reg_base;
break;
case MT76_WED_Q_RX:
- ret = mtk_wed_device_rx_ring_setup(wed, ring, q->regs);
+ ret = mtk_wed_device_rx_ring_setup(wed, ring, q->regs, false);
if (!ret)
q->wed_regs = wed->rx_ring[ring].reg_base;
break;
diff --git a/include/linux/soc/mediatek/mtk_wed.h b/include/linux/soc/mediatek/mtk_wed.h
index beb190449704..a0746d4aec20 100644
--- a/include/linux/soc/mediatek/mtk_wed.h
+++ b/include/linux/soc/mediatek/mtk_wed.h
@@ -160,7 +160,7 @@ struct mtk_wed_ops {
int (*tx_ring_setup)(struct mtk_wed_device *dev, int ring,
void __iomem *regs, bool reset);
int (*rx_ring_setup)(struct mtk_wed_device *dev, int ring,
- void __iomem *regs);
+ void __iomem *regs, bool reset);
int (*txfree_ring_setup)(struct mtk_wed_device *dev,
void __iomem *regs);
int (*msg_update)(struct mtk_wed_device *dev, int cmd_id,
@@ -228,8 +228,8 @@ mtk_wed_get_rx_capa(struct mtk_wed_device *dev)
(_dev)->ops->irq_get(_dev, _mask)
#define mtk_wed_device_irq_set_mask(_dev, _mask) \
(_dev)->ops->irq_set_mask(_dev, _mask)
-#define mtk_wed_device_rx_ring_setup(_dev, _ring, _regs) \
- (_dev)->ops->rx_ring_setup(_dev, _ring, _regs)
+#define mtk_wed_device_rx_ring_setup(_dev, _ring, _regs, _reset) \
+ (_dev)->ops->rx_ring_setup(_dev, _ring, _regs, _reset)
#define mtk_wed_device_ppe_check(_dev, _skb, _reason, _hash) \
(_dev)->ops->ppe_check(_dev, _skb, _reason, _hash)
#define mtk_wed_device_update_msg(_dev, _id, _msg, _len) \
@@ -249,7 +249,7 @@ static inline bool mtk_wed_device_active(struct mtk_wed_device *dev)
#define mtk_wed_device_reg_write(_dev, _reg, _val) do {} while (0)
#define mtk_wed_device_irq_get(_dev, _mask) 0
#define mtk_wed_device_irq_set_mask(_dev, _mask) do {} while (0)
-#define mtk_wed_device_rx_ring_setup(_dev, _ring, _regs) -ENODEV
+#define mtk_wed_device_rx_ring_setup(_dev, _ring, _regs, _reset) -ENODEV
#define mtk_wed_device_ppe_check(_dev, _skb, _reason, _hash) do {} while (0)
#define mtk_wed_device_update_msg(_dev, _id, _msg, _len) -ENODEV
#define mtk_wed_device_stop(_dev) do {} while (0)
--
2.38.1
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