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Message-Id: <9c4dded2b7a35a8e44b255a74e776a703359797b.1669020847.git.lorenzo@kernel.org>
Date: Mon, 21 Nov 2022 09:59:25 +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, lorenzo.bianconi@...hat.com,
sujuan.chen@...iatek.com, linux-mediatek@...ts.infradead.org
Subject: [PATCH net-next 5/5] net: ethernet: mtk_wed: add reset to tx_ring_setup callback
Introduce reset parameter to mtk_wed_tx_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 | 19 +++++++++++--------
drivers/net/wireless/mediatek/mt76/dma.c | 2 +-
include/linux/soc/mediatek/mtk_wed.h | 8 ++++----
3 files changed, 16 insertions(+), 13 deletions(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c
index 07261aeacc56..927a74e4f51d 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -1181,7 +1181,8 @@ mtk_wed_ring_alloc(struct mtk_wed_device *dev, struct mtk_wed_ring *ring,
}
static int
-mtk_wed_wdma_rx_ring_setup(struct mtk_wed_device *dev, int idx, int size)
+mtk_wed_wdma_rx_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;
@@ -1190,8 +1191,8 @@ mtk_wed_wdma_rx_ring_setup(struct mtk_wed_device *dev, int idx, int size)
return -EINVAL;
wdma = &dev->rx_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_RX(idx) + MTK_WED_RING_OFS_BASE,
@@ -1389,7 +1390,7 @@ mtk_wed_start(struct mtk_wed_device *dev, u32 irq_mask)
for (i = 0; i < ARRAY_SIZE(dev->rx_wdma); i++)
if (!dev->rx_wdma[i].desc)
- mtk_wed_wdma_rx_ring_setup(dev, i, 16);
+ mtk_wed_wdma_rx_ring_setup(dev, i, 16, false);
mtk_wed_hw_init(dev);
mtk_wed_configure_irq(dev, irq_mask);
@@ -1495,7 +1496,8 @@ mtk_wed_attach(struct mtk_wed_device *dev)
}
static int
-mtk_wed_tx_ring_setup(struct mtk_wed_device *dev, int idx, void __iomem *regs)
+mtk_wed_tx_ring_setup(struct mtk_wed_device *dev, int idx, void __iomem *regs,
+ bool reset)
{
struct mtk_wed_ring *ring = &dev->tx_ring[idx];
@@ -1514,11 +1516,12 @@ mtk_wed_tx_ring_setup(struct mtk_wed_device *dev, int idx, void __iomem *regs)
if (WARN_ON(idx >= ARRAY_SIZE(dev->tx_ring)))
return -EINVAL;
- if (mtk_wed_ring_alloc(dev, ring, MTK_WED_TX_RING_SIZE,
- sizeof(*ring->desc), true))
+ if (!reset && mtk_wed_ring_alloc(dev, ring, MTK_WED_TX_RING_SIZE,
+ sizeof(*ring->desc), true))
return -ENOMEM;
- if (mtk_wed_wdma_rx_ring_setup(dev, idx, MTK_WED_WDMA_RING_SIZE))
+ if (mtk_wed_wdma_rx_ring_setup(dev, idx, MTK_WED_WDMA_RING_SIZE,
+ reset))
return -ENOMEM;
ring->reg_base = MTK_WED_RING_TX(idx);
diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c
index 8dca8d2447b7..3f8c0845fcca 100644
--- a/drivers/net/wireless/mediatek/mt76/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/dma.c
@@ -632,7 +632,7 @@ mt76_dma_wed_setup(struct mt76_dev *dev, struct mt76_queue *q)
switch (type) {
case MT76_WED_Q_TX:
- ret = mtk_wed_device_tx_ring_setup(wed, ring, q->regs);
+ ret = mtk_wed_device_tx_ring_setup(wed, ring, q->regs, false);
if (!ret)
q->wed_regs = wed->tx_ring[ring].reg_base;
break;
diff --git a/include/linux/soc/mediatek/mtk_wed.h b/include/linux/soc/mediatek/mtk_wed.h
index 0bbba50cf929..32d87c701333 100644
--- a/include/linux/soc/mediatek/mtk_wed.h
+++ b/include/linux/soc/mediatek/mtk_wed.h
@@ -155,7 +155,7 @@ struct mtk_wed_device {
struct mtk_wed_ops {
int (*attach)(struct mtk_wed_device *dev);
int (*tx_ring_setup)(struct mtk_wed_device *dev, int ring,
- void __iomem *regs);
+ void __iomem *regs, bool reset);
int (*rx_ring_setup)(struct mtk_wed_device *dev, int ring,
void __iomem *regs);
int (*txfree_ring_setup)(struct mtk_wed_device *dev,
@@ -213,8 +213,8 @@ mtk_wed_get_rx_capa(struct mtk_wed_device *dev)
#define mtk_wed_device_active(_dev) !!(_dev)->ops
#define mtk_wed_device_detach(_dev) (_dev)->ops->detach(_dev)
#define mtk_wed_device_start(_dev, _mask) (_dev)->ops->start(_dev, _mask)
-#define mtk_wed_device_tx_ring_setup(_dev, _ring, _regs) \
- (_dev)->ops->tx_ring_setup(_dev, _ring, _regs)
+#define mtk_wed_device_tx_ring_setup(_dev, _ring, _regs, _reset) \
+ (_dev)->ops->tx_ring_setup(_dev, _ring, _regs, _reset)
#define mtk_wed_device_txfree_ring_setup(_dev, _regs) \
(_dev)->ops->txfree_ring_setup(_dev, _regs)
#define mtk_wed_device_reg_read(_dev, _reg) \
@@ -240,7 +240,7 @@ static inline bool mtk_wed_device_active(struct mtk_wed_device *dev)
}
#define mtk_wed_device_detach(_dev) do {} while (0)
#define mtk_wed_device_start(_dev, _mask) do {} while (0)
-#define mtk_wed_device_tx_ring_setup(_dev, _ring, _regs) -ENODEV
+#define mtk_wed_device_tx_ring_setup(_dev, _ring, _regs, _reset) -ENODEV
#define mtk_wed_device_txfree_ring_setup(_dev, _ring, _regs) -ENODEV
#define mtk_wed_device_reg_read(_dev, _reg) 0
#define mtk_wed_device_reg_write(_dev, _reg, _val) do {} while (0)
--
2.38.1
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