target/linux/brcm47xx/patches-3.10/730-b44-add-support-for-Byte-Queue-Limits.patch

   1 From: Hauke Mehrtens <hauke@hauke-m.de>
   2 b44: add support for Byte Queue Limits
   3
   4 --- a/drivers/net/ethernet/broadcom/b44.c
   5 +++ b/drivers/net/ethernet/broadcom/b44.c
   6 @@ -622,6 +622,7 @@ static void b44_timer(unsigned long __op
   7  static void b44_tx(struct b44 *bp)
   8  {
   9         u32 cur, cons;
  10 +       unsigned bytes_compl = 0, pkts_compl = 0;
  11
  12         cur  = br32(bp, B44_DMATX_STAT) & DMATX_STAT_CDMASK;
  13         cur /= sizeof(struct dma_desc);
  14 @@ -638,9 +639,14 @@ static void b44_tx(struct b44 *bp)
  15                                  skb->len,
  16                                  DMA_TO_DEVICE);
  17                 rp->skb = NULL;
  18 +
  19 +               bytes_compl += skb->len;
  20 +               pkts_compl++;
  21 +
  22                 dev_kfree_skb_irq(skb);
  23         }
  24
  25 +       netdev_completed_queue(bp->dev, pkts_compl, bytes_compl);
  26         bp->tx_cons = cons;
  27         if (netif_queue_stopped(bp->dev) &&
  28             TX_BUFFS_AVAIL(bp) > B44_TX_WAKEUP_THRESH)
  29 @@ -1044,6 +1050,8 @@ static netdev_tx_t b44_start_xmit(struct
  30         if (bp->flags & B44_FLAG_REORDER_BUG)
  31                 br32(bp, B44_DMATX_PTR);
  32
  33 +       netdev_sent_queue(dev, skb->len);
  34 +
  35         if (TX_BUFFS_AVAIL(bp) < 1)
  36                 netif_stop_queue(dev);
  37
  38 @@ -1442,6 +1450,8 @@ static void b44_init_hw(struct b44 *bp,
  39
  40         val = br32(bp, B44_ENET_CTRL);
  41         bw32(bp, B44_ENET_CTRL, (val | ENET_CTRL_ENABLE));
  42 +
  43 +       netdev_reset_queue(bp->dev);
  44  }
  45
  46  static int b44_open(struct net_device *dev)