netdev - Re: [PATCH 1/3] ibmveth: Remove duplicate checksum offload setup code

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Date:	Fri, 20 Aug 2010 09:01:43 -0500
From:	Brian King <brking@...ux.vnet.ibm.com>
To:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	Santiago Leon <santil@...ux.vnet.ibm.com>
Subject: Re: [PATCH 1/3] ibmveth: Remove duplicate checksum offload setup
 code

Patches 1-3

Acked-by: Brian King <brking@...ux.vnet.ibm.com>

On 08/18/2010 11:05 AM, Robert Jennings wrote:
> Remove code in the device probe function where we set up the checksum
> offload feature and replace it with a call to an existing function that
> is doing the same.  This is done to clean up the driver in preparation
> of adding IPv6 checksum offload support.
> 
> Signed-off-by: Robert Jennings <rcj@...ux.vnet.ibm.com>
> 
> ---
>  drivers/net/ibmveth.c |   18 +-----------------
>  1 file changed, 1 insertion(+), 17 deletions(-)
> 
> Index: b/drivers/net/ibmveth.c
> ===================================================================
> --- a/drivers/net/ibmveth.c
> +++ b/drivers/net/ibmveth.c
> @@ -1222,10 +1222,8 @@ static const struct net_device_ops ibmve
>  static int __devinit ibmveth_probe(struct vio_dev *dev, const struct vio_device_id *id)
>  {
>  	int rc, i;
> -	long ret;
>  	struct net_device *netdev;
>  	struct ibmveth_adapter *adapter;
> -	unsigned long set_attr, ret_attr;
> 
>  	unsigned char *mac_addr_p;
>  	unsigned int *mcastFilterSize_p;
> @@ -1310,21 +1308,7 @@ static int __devinit ibmveth_probe(struc
> 
>  	ibmveth_debug_printk("registering netdev...\n");
> 
> -	ret = h_illan_attributes(dev->unit_address, 0, 0, &ret_attr);
> -
> -	if (ret == H_SUCCESS && !(ret_attr & IBMVETH_ILLAN_ACTIVE_TRUNK) &&
> -	    !(ret_attr & IBMVETH_ILLAN_TRUNK_PRI_MASK) &&
> -	    (ret_attr & IBMVETH_ILLAN_PADDED_PKT_CSUM)) {
> -		set_attr = IBMVETH_ILLAN_IPV4_TCP_CSUM;
> -
> -		ret = h_illan_attributes(dev->unit_address, 0, set_attr, &ret_attr);
> -
> -		if (ret == H_SUCCESS) {
> -			adapter->rx_csum = 1;
> -			netdev->features |= NETIF_F_IP_CSUM;
> -		} else
> -			ret = h_illan_attributes(dev->unit_address, set_attr, 0, &ret_attr);
> -	}
> +	ibmveth_set_csum_offload(netdev, 1, ibmveth_set_tx_csum_flags);
> 
>  	rc = register_netdev(netdev);
> 
> --
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-- 
Brian King
Linux on Power Virtualization
IBM Linux Technology Center


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