target/linux/mediatek/patches-4.4/0091-net-next-mediatek-remove-BQL.patch

   1 From 1e1f2c5ea2af34017a398ab11cffac142adea87e Mon Sep 17 00:00:00 2001
   2 From: John Crispin <blogic@openwrt.org>
   3 Date: Sat, 23 Apr 2016 12:57:21 +0200
   4 Subject: [PATCH 91/91] net-next: mediatek: remove BQL
   5
   6 Signed-off-by: John Crispin <blogic@openwrt.org>
   7 ---
   8  drivers/net/ethernet/mediatek/mtk_eth_soc.c |   19 -------------------
   9  1 file changed, 19 deletions(-)
  10
  11 diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
  12 index b466f45..68f39ed 100644
  13 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
  14 +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
  15 @@ -653,15 +653,6 @@ static int mtk_tx_map(struct sk_buff *skb, struct net_device *dev,
  16         WRITE_ONCE(itxd->txd3, (TX_DMA_SWC | TX_DMA_PLEN0(skb_headlen(skb)) |
  17                                 (!nr_frags * TX_DMA_LS0)));
  18
  19 -       /* we have a single DMA ring so BQL needs to be updated for all devices
  20 -        * sitting on this ring
  21 -        */
  22 -       for (i = 0; i < MTK_MAC_COUNT; i++) {
  23 -               if (!eth->netdev[i])
  24 -                       continue;
  25 -               netdev_sent_queue(dev, skb->len);
  26 -       }
  27 -
  28         skb_tx_timestamp(skb);
  29
  30         ring->next_free = mtk_qdma_phys_to_virt(ring, txd->txd2);
  31 @@ -894,7 +885,6 @@ static int mtk_poll_tx(struct mtk_eth *eth, int budget)
  32         unsigned int bytes = 0, done = 0;
  33         u32 cpu, dma;
  34         static int condition;
  35 -       int i;
  36
  37         cpu = mtk_r32(eth, MTK_QTX_CRX_PTR);
  38         dma = mtk_r32(eth, MTK_QTX_DRX_PTR);
  39 @@ -935,15 +925,6 @@ static int mtk_poll_tx(struct mtk_eth *eth, int budget)
  40
  41         mtk_w32(eth, cpu, MTK_QTX_CRX_PTR);
  42
  43 -       /* we have a single DMA ring so BQL needs to be updated for all devices
  44 -        * sitting on this ring
  45 -        */
  46 -       for (i = 0; i < MTK_MAC_COUNT; i++) {
  47 -               if (!eth->netdev[i])
  48 -                       continue;
  49 -               netdev_completed_queue(eth->netdev[i], done, bytes);
  50 -       }
  51 -
  52         /* read hw index again make sure no new tx packet */
  53         if (cpu == dma && cpu == mtk_r32(eth, MTK_QTX_DRX_PTR))
  54                 mtk_w32(eth, MTK_TX_DONE_INT, MTK_QMTK_INT_STATUS);
  55 --
  56 1.7.10.4
  57