target/linux/generic/pending-5.4/770-04-net-ethernet-mtk_eth_soc-use-larger-burst-size-for-q.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Wed, 26 Aug 2020 16:58:55 +0200
   3 Subject: [PATCH] net: ethernet: mtk_eth_soc: use larger burst size for
   4  qdma tx
   5
   6 Improves tx performance
   7
   8 Signed-off-by: Felix Fietkau <nbd@nbd.name>
   9 ---
  10
  11 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
  12 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
  13 @@ -2228,7 +2228,7 @@ static int mtk_start_dma(struct mtk_eth
  14         if (MTK_HAS_CAPS(eth->soc->caps, MTK_QDMA)) {
  15                 mtk_w32(eth,
  16                         MTK_TX_WB_DDONE | MTK_TX_DMA_EN |
  17 -                       MTK_DMA_SIZE_16DWORDS | MTK_NDP_CO_PRO |
  18 +                       MTK_TX_BT_32DWORDS | MTK_NDP_CO_PRO |
  19                         MTK_RX_DMA_EN | MTK_RX_2B_OFFSET |
  20                         MTK_RX_BT_32DWORDS,
  21                         MTK_QDMA_GLO_CFG);
  22 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
  23 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
  24 @@ -197,7 +197,7 @@
  25  #define MTK_RX_BT_32DWORDS     (3 << 11)
  26  #define MTK_NDP_CO_PRO         BIT(10)
  27  #define MTK_TX_WB_DDONE                BIT(6)
  28 -#define MTK_DMA_SIZE_16DWORDS  (2 << 4)
  29 +#define MTK_TX_BT_32DWORDS     (3 << 4)
  30  #define MTK_RX_DMA_BUSY                BIT(3)
  31  #define MTK_TX_DMA_BUSY                BIT(1)
  32  #define MTK_RX_DMA_EN          BIT(2)