diff options
| author | Toshiharu Okada <toshiharu-linux@dsn.okisemi.com> | 2011-09-01 14:20:07 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-05-21 09:40:05 -0700 |
| commit | 20149346fc897be5a7a4eed1203b446dabf75183 (patch) | |
| tree | 607dc03505142c0b8bb8484d15c395cef207d174 /drivers | |
| parent | a166666fe3d400c75bb5ea60733801ed04b23e8b (diff) | |
| download | kernel_samsung_smdk4412-20149346fc897be5a7a4eed1203b446dabf75183.zip kernel_samsung_smdk4412-20149346fc897be5a7a4eed1203b446dabf75183.tar.gz kernel_samsung_smdk4412-20149346fc897be5a7a4eed1203b446dabf75183.tar.bz2 | |
pch_gbe: fixed the issue which receives an unnecessary packet.
commit 5229d87edcd80a3bceb0708ebd767faff2e589a9 upstream.
This patch fixed the issue which receives an unnecessary packet before link
When using PHY of GMII, an unnecessary packet is received,
And it becomes impossible to receive a packet after link up.
Signed-off-by: Toshiharu Okada <toshiharu-linux@dsn.okisemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/pch_gbe/pch_gbe_main.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/net/pch_gbe/pch_gbe_main.c b/drivers/net/pch_gbe/pch_gbe_main.c index eac3c5c..48ff87c 100644 --- a/drivers/net/pch_gbe/pch_gbe_main.c +++ b/drivers/net/pch_gbe/pch_gbe_main.c @@ -717,13 +717,6 @@ static void pch_gbe_configure_rx(struct pch_gbe_adapter *adapter) iowrite32(rdba, &hw->reg->RX_DSC_BASE); iowrite32(rdlen, &hw->reg->RX_DSC_SIZE); iowrite32((rdba + rdlen), &hw->reg->RX_DSC_SW_P); - - /* Enables Receive DMA */ - rxdma = ioread32(&hw->reg->DMA_CTRL); - rxdma |= PCH_GBE_RX_DMA_EN; - iowrite32(rxdma, &hw->reg->DMA_CTRL); - /* Enables Receive */ - iowrite32(PCH_GBE_MRE_MAC_RX_EN, &hw->reg->MAC_RX_EN); } /** @@ -1097,6 +1090,19 @@ void pch_gbe_update_stats(struct pch_gbe_adapter *adapter) spin_unlock_irqrestore(&adapter->stats_lock, flags); } +static void pch_gbe_start_receive(struct pch_gbe_hw *hw) +{ + u32 rxdma; + + /* Enables Receive DMA */ + rxdma = ioread32(&hw->reg->DMA_CTRL); + rxdma |= PCH_GBE_RX_DMA_EN; + iowrite32(rxdma, &hw->reg->DMA_CTRL); + /* Enables Receive */ + iowrite32(PCH_GBE_MRE_MAC_RX_EN, &hw->reg->MAC_RX_EN); + return; +} + /** * pch_gbe_intr - Interrupt Handler * @irq: Interrupt number @@ -1717,6 +1723,7 @@ int pch_gbe_up(struct pch_gbe_adapter *adapter) pch_gbe_alloc_tx_buffers(adapter, tx_ring); pch_gbe_alloc_rx_buffers(adapter, rx_ring, rx_ring->count); adapter->tx_queue_len = netdev->tx_queue_len; + pch_gbe_start_receive(&adapter->hw); mod_timer(&adapter->watchdog_timer, jiffies); |