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net: ethernet: mtk_wed: add reset to tx_ring_setup callback

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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@mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Lorenzo Bianconi 2022-11-24 16:22:55 +01:00 committed by Paolo Abeni
parent b08134c6e1
commit 23dca7a900
3 changed files with 16 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/net/ethernet/mediatek/mtk_wed.c
View File

@ -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);
@ -1498,7 +1499,8 @@ unlock:
}
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];
@ -1517,11 +1519,12 @@ 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);

2
drivers/net/wireless/mediatek/mt76/dma.c
View File

@ -502,7 +502,7 @@ 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;

8
include/linux/soc/mediatek/mtk_wed.h
View File

@ -158,7 +158,7 @@ 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,
@ -216,8 +216,8 @@ 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) \
@ -243,7 +243,7 @@ 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)