From 5229d87edcd80a3bceb0708ebd767faff2e589a9 Mon Sep 17 00:00:00 2001 From: Toshiharu Okada Date: Thu, 1 Sep 2011 14:20:07 +0000 Subject: [PATCH] pch_gbe: fixed the issue which receives an unnecessary packet. 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 Signed-off-by: David S. Miller --- drivers/net/pch_gbe/pch_gbe_main.c | 21 ++++++++++++++------- 1 file 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 eac3c5ca9731..48ff87c455ae 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); -- 2.20.1