diff options
Diffstat (limited to 'drivers/net/macb.c')
| -rw-r--r-- | drivers/net/macb.c | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/drivers/net/macb.c b/drivers/net/macb.c index 0c0d17ee9b..a0411d6e4b 100644 --- a/drivers/net/macb.c +++ b/drivers/net/macb.c @@ -209,9 +209,11 @@ static int macb_recv(struct eth_device *edev) dev_dbg(macb->dev, "%s\n", __func__); for (;;) { + barrier(); if (!(macb->rx_ring[rx_tail].addr & MACB_BIT(RX_USED))) return -1; + barrier(); status = macb->rx_ring[rx_tail].ctrl; if (status & MACB_BIT(RX_SOF)) { if (rx_tail != macb->rx_tail) @@ -228,14 +230,26 @@ static int macb_recv(struct eth_device *edev) headlen = macb->rx_buffer_size * (macb->rx_ring_size - macb->rx_tail); taillen = length - headlen; - memcpy((void *)NetRxPackets[0], - buffer, headlen); + dma_sync_single_for_cpu((unsigned long)buffer, + headlen, DMA_FROM_DEVICE); + memcpy((void *)NetRxPackets[0], buffer, headlen); + dma_sync_single_for_cpu((unsigned long)macb->rx_buffer, + taillen, DMA_FROM_DEVICE); memcpy((void *)NetRxPackets[0] + headlen, - macb->rx_buffer, taillen); - buffer = (void *)NetRxPackets[0]; + macb->rx_buffer, taillen); + dma_sync_single_for_device((unsigned long)buffer, + headlen, DMA_FROM_DEVICE); + dma_sync_single_for_device((unsigned long)macb->rx_buffer, + taillen, DMA_FROM_DEVICE); + net_receive(edev, NetRxPackets[0], length); + } else { + dma_sync_single_for_cpu((unsigned long)buffer, length, + DMA_FROM_DEVICE); + net_receive(edev, buffer, length); + dma_sync_single_for_device((unsigned long)buffer, length, + DMA_FROM_DEVICE); } - - net_receive(edev, buffer, length); + barrier(); if (++rx_tail >= macb->rx_ring_size) rx_tail = 0; reclaim_rx_buffers(macb, rx_tail); @@ -245,7 +259,6 @@ static int macb_recv(struct eth_device *edev) rx_tail = 0; } } - barrier(); } return 0; |