target/linux/generic/backport-5.15/729-23-v6.3-net-ethernet-mtk_wed-add-reset-to-rx_ring_setup-call.patch

   1 From: Lorenzo Bianconi <lorenzo@kernel.org>
   2 Date: Mon, 5 Dec 2022 12:34:42 +0100
   3 Subject: [PATCH] net: ethernet: mtk_wed: add reset to rx_ring_setup callback
   4
   5 This patch adds reset parameter to mtk_wed_rx_ring_setup signature
   6 in order to align rx_ring_setup callback to tx_ring_setup one introduced
   7 in 'commit 23dca7a90017 ("net: ethernet: mtk_wed: add reset to
   8 tx_ring_setup callback")'
   9
  10 Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com>
  11 Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
  12 Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
  13 Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
  14 Link: https://lore.kernel.org/r/29c6e7a5469e784406cf3e2920351d1207713d05.1670239984.git.lorenzo@kernel.org
  15 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
  16 ---
  17
  18 --- a/drivers/net/ethernet/mediatek/mtk_wed.c
  19 +++ b/drivers/net/ethernet/mediatek/mtk_wed.c
  20 @@ -1259,7 +1259,8 @@ mtk_wed_wdma_rx_ring_setup(struct mtk_we
  21  }
  22
  23  static int
  24 -mtk_wed_wdma_tx_ring_setup(struct mtk_wed_device *dev, int idx, int size)
  25 +mtk_wed_wdma_tx_ring_setup(struct mtk_wed_device *dev, int idx, int size,
  26 +                          bool reset)
  27  {
  28         u32 desc_size = sizeof(struct mtk_wdma_desc) * dev->hw->version;
  29         struct mtk_wed_ring *wdma;
  30 @@ -1268,8 +1269,8 @@ mtk_wed_wdma_tx_ring_setup(struct mtk_we
  31                 return -EINVAL;
  32
  33         wdma = &dev->tx_wdma[idx];
  34 -       if (mtk_wed_ring_alloc(dev, wdma, MTK_WED_WDMA_RING_SIZE, desc_size,
  35 -                              true))
  36 +       if (!reset && mtk_wed_ring_alloc(dev, wdma, MTK_WED_WDMA_RING_SIZE,
  37 +                                        desc_size, true))
  38                 return -ENOMEM;
  39
  40         wdma_w32(dev, MTK_WDMA_RING_TX(idx) + MTK_WED_RING_OFS_BASE,
  41 @@ -1279,6 +1280,9 @@ mtk_wed_wdma_tx_ring_setup(struct mtk_we
  42         wdma_w32(dev, MTK_WDMA_RING_TX(idx) + MTK_WED_RING_OFS_CPU_IDX, 0);
  43         wdma_w32(dev, MTK_WDMA_RING_TX(idx) + MTK_WED_RING_OFS_DMA_IDX, 0);
  44
  45 +       if (reset)
  46 +               mtk_wed_ring_reset(wdma, MTK_WED_WDMA_RING_SIZE, true);
  47 +
  48         if (!idx)  {
  49                 wed_w32(dev, MTK_WED_WDMA_RING_TX + MTK_WED_RING_OFS_BASE,
  50                         wdma->desc_phys);
  51 @@ -1618,18 +1622,20 @@ mtk_wed_txfree_ring_setup(struct mtk_wed
  52  }
  53
  54  static int
  55 -mtk_wed_rx_ring_setup(struct mtk_wed_device *dev, int idx, void __iomem *regs)
  56 +mtk_wed_rx_ring_setup(struct mtk_wed_device *dev, int idx, void __iomem *regs,
  57 +                     bool reset)
  58  {
  59         struct mtk_wed_ring *ring = &dev->rx_ring[idx];
  60
  61         if (WARN_ON(idx >= ARRAY_SIZE(dev->rx_ring)))
  62                 return -EINVAL;
  63
  64 -       if (mtk_wed_ring_alloc(dev, ring, MTK_WED_RX_RING_SIZE,
  65 -                              sizeof(*ring->desc), false))
  66 +       if (!reset && mtk_wed_ring_alloc(dev, ring, MTK_WED_RX_RING_SIZE,
  67 +                                        sizeof(*ring->desc), false))
  68                 return -ENOMEM;
  69
  70 -       if (mtk_wed_wdma_tx_ring_setup(dev, idx, MTK_WED_WDMA_RING_SIZE))
  71 +       if (mtk_wed_wdma_tx_ring_setup(dev, idx, MTK_WED_WDMA_RING_SIZE,
  72 +                                      reset))
  73                 return -ENOMEM;
  74
  75         ring->reg_base = MTK_WED_RING_RX_DATA(idx);
  76 --- a/include/linux/soc/mediatek/mtk_wed.h
  77 +++ b/include/linux/soc/mediatek/mtk_wed.h
  78 @@ -162,7 +162,7 @@ struct mtk_wed_ops {
  79         int (*tx_ring_setup)(struct mtk_wed_device *dev, int ring,
  80                              void __iomem *regs, bool reset);
  81         int (*rx_ring_setup)(struct mtk_wed_device *dev, int ring,
  82 -                            void __iomem *regs);
  83 +                            void __iomem *regs, bool reset);
  84         int (*txfree_ring_setup)(struct mtk_wed_device *dev,
  85                                  void __iomem *regs);
  86         int (*msg_update)(struct mtk_wed_device *dev, int cmd_id,
  87 @@ -230,8 +230,8 @@ mtk_wed_get_rx_capa(struct mtk_wed_devic
  88         (_dev)->ops->irq_get(_dev, _mask)
  89  #define mtk_wed_device_irq_set_mask(_dev, _mask) \
  90         (_dev)->ops->irq_set_mask(_dev, _mask)
  91 -#define mtk_wed_device_rx_ring_setup(_dev, _ring, _regs) \
  92 -       (_dev)->ops->rx_ring_setup(_dev, _ring, _regs)
  93 +#define mtk_wed_device_rx_ring_setup(_dev, _ring, _regs, _reset) \
  94 +       (_dev)->ops->rx_ring_setup(_dev, _ring, _regs, _reset)
  95  #define mtk_wed_device_ppe_check(_dev, _skb, _reason, _hash) \
  96         (_dev)->ops->ppe_check(_dev, _skb, _reason, _hash)
  97  #define mtk_wed_device_update_msg(_dev, _id, _msg, _len) \
  98 @@ -251,7 +251,7 @@ static inline bool mtk_wed_device_active
  99  #define mtk_wed_device_reg_write(_dev, _reg, _val) do {} while (0)
 100  #define mtk_wed_device_irq_get(_dev, _mask) 0
 101  #define mtk_wed_device_irq_set_mask(_dev, _mask) do {} while (0)
 102 -#define mtk_wed_device_rx_ring_setup(_dev, _ring, _regs) -ENODEV
 103 +#define mtk_wed_device_rx_ring_setup(_dev, _ring, _regs, _reset) -ENODEV
 104  #define mtk_wed_device_ppe_check(_dev, _skb, _reason, _hash)  do {} while (0)
 105  #define mtk_wed_device_update_msg(_dev, _id, _msg, _len) -ENODEV
 106  #define mtk_wed_device_stop(_dev) do {} while (0)