target/linux/generic/backport-5.15/702-v5.19-23-net-ethernet-mtk_eth_soc-add-rxd_size-to-mtk_soc_dat.patch

   1 From: Lorenzo Bianconi <lorenzo@kernel.org>
   2 Date: Fri, 20 May 2022 20:11:32 +0200
   3 Subject: [PATCH] net: ethernet: mtk_eth_soc: add rxd_size to mtk_soc_data
   4
   5 Similar to tx counterpart, introduce rxd_size in mtk_soc_data data
   6 structure.
   7 This is a preliminary patch to add mt7986 ethernet support.
   8
   9 Tested-by: Sam Shih <sam.shih@mediatek.com>
  10 Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
  11 Signed-off-by: David S. Miller <davem@davemloft.net>
  12 ---
  13
  14 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
  15 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
  16 @@ -1758,7 +1758,7 @@ static int mtk_rx_alloc(struct mtk_eth *
  17         }
  18
  19         ring->dma = dma_alloc_coherent(eth->dma_dev,
  20 -                                      rx_dma_size * sizeof(*ring->dma),
  21 +                                      rx_dma_size * eth->soc->txrx.rxd_size,
  22                                        &ring->phys, GFP_KERNEL);
  23         if (!ring->dma)
  24                 return -ENOMEM;
  25 @@ -1816,9 +1816,8 @@ static void mtk_rx_clean(struct mtk_eth
  26
  27         if (ring->dma) {
  28                 dma_free_coherent(eth->dma_dev,
  29 -                                 ring->dma_size * sizeof(*ring->dma),
  30 -                                 ring->dma,
  31 -                                 ring->phys);
  32 +                                 ring->dma_size * eth->soc->txrx.rxd_size,
  33 +                                 ring->dma, ring->phys);
  34                 ring->dma = NULL;
  35         }
  36  }
  37 @@ -3386,6 +3385,7 @@ static const struct mtk_soc_data mt2701_
  38         .required_pctl = true,
  39         .txrx = {
  40                 .txd_size = sizeof(struct mtk_tx_dma),
  41 +               .rxd_size = sizeof(struct mtk_rx_dma),
  42         },
  43  };
  44
  45 @@ -3397,6 +3397,7 @@ static const struct mtk_soc_data mt7621_
  46         .offload_version = 2,
  47         .txrx = {
  48                 .txd_size = sizeof(struct mtk_tx_dma),
  49 +               .rxd_size = sizeof(struct mtk_rx_dma),
  50         },
  51  };
  52
  53 @@ -3409,6 +3410,7 @@ static const struct mtk_soc_data mt7622_
  54         .offload_version = 2,
  55         .txrx = {
  56                 .txd_size = sizeof(struct mtk_tx_dma),
  57 +               .rxd_size = sizeof(struct mtk_rx_dma),
  58         },
  59  };
  60
  61 @@ -3420,6 +3422,7 @@ static const struct mtk_soc_data mt7623_
  62         .offload_version = 2,
  63         .txrx = {
  64                 .txd_size = sizeof(struct mtk_tx_dma),
  65 +               .rxd_size = sizeof(struct mtk_rx_dma),
  66         },
  67  };
  68
  69 @@ -3431,6 +3434,7 @@ static const struct mtk_soc_data mt7629_
  70         .required_pctl = false,
  71         .txrx = {
  72                 .txd_size = sizeof(struct mtk_tx_dma),
  73 +               .rxd_size = sizeof(struct mtk_rx_dma),
  74         },
  75  };
  76
  77 @@ -3441,6 +3445,7 @@ static const struct mtk_soc_data rt5350_
  78         .required_pctl = false,
  79         .txrx = {
  80                 .txd_size = sizeof(struct mtk_tx_dma),
  81 +               .rxd_size = sizeof(struct mtk_rx_dma),
  82         },
  83  };
  84
  85 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
  86 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
  87 @@ -864,6 +864,7 @@ struct mtk_tx_dma_desc_info {
  88   * @required_pctl              A bool value to show whether the SoC requires
  89   *                             the extra setup for those pins used by GMAC.
  90   * @txd_size                   Tx DMA descriptor size.
  91 + * @rxd_size                   Rx DMA descriptor size.
  92   */
  93  struct mtk_soc_data {
  94         u32             ana_rgc3;
  95 @@ -874,6 +875,7 @@ struct mtk_soc_data {
  96         netdev_features_t hw_features;
  97         struct {
  98                 u32     txd_size;
  99 +               u32     rxd_size;
 100         } txrx;
 101  };
 102