From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yoshihiro Shimoda Date: Mon, 25 May 2009 09:52:35 +0000 Subject: [PATCH 1/5] net: sh_eth: fix cache coherency issue Message-Id: <4A1A6A63.8040608@renesas.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: netdev@vger.kernel.org Cc: SH-Linux , Nobuhiro Iwamatsu Fix the problem that may not work receive process by cache coherency issue. Signed-off-by: Yoshihiro Shimoda Signed-off-by: Nobuhiro Iwamatsu --- drivers/net/sh_eth.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c index 3ab28bb..a742297 100644 --- a/drivers/net/sh_eth.c +++ b/drivers/net/sh_eth.c @@ -250,6 +250,8 @@ static void sh_eth_ring_format(struct net_device *ndev) mdp->rx_skbuff[i] = skb; if (skb = NULL) break; + dma_map_single(&ndev->dev, skb->tail, mdp->rx_buf_sz, + DMA_FROM_DEVICE); skb->dev = ndev; /* Mark as being used by this device. */ #if defined(CONFIG_CPU_SUBTYPE_SH7763) reserve = SH7763_SKB_ALIGN @@ -559,6 +561,8 @@ static int sh_eth_rx(struct net_device *ndev) mdp->rx_skbuff[entry] = skb; if (skb = NULL) break; /* Better luck next round. */ + dma_map_single(&ndev->dev, skb->tail, mdp->rx_buf_sz, + DMA_FROM_DEVICE); skb->dev = ndev; #if defined(CONFIG_CPU_SUBTYPE_SH7763) reserve = SH7763_SKB_ALIGN -- 1.5.5