netdev - Re: [PATCH net-next-2.6] net: Changes to support the "-f" option of ethtool.

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Date:	Wed, 5 Aug 2009 18:07:05 +0530
From:	Ajit Khaparde <ajitk@...verengines.com>
To:	davem@...emloft.net, jgarzik@...ox.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-next-2.6] net: Changes to support the "-f" option
	of ethtool.

The patch intends to use the request_firmware() interface to pick the
firmware image file. 
I had missed this in the original post. Thanks.

On 05/08/09 18:02 +0530, Ajit Khaparde wrote:
> This patch adds kernel support for the new "-f" option in ethtool,
> This will allow a firmware image to be flashed to a network device.
> 
> Signed-off-by: Ajit Khaparde <ajitk@...verengines.com>
> ---
>  include/linux/ethtool.h |    3 +++
>  net/core/ethtool.c      |   13 +++++++++++++
>  2 files changed, 16 insertions(+), 0 deletions(-)
> 
> diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
> index 90c4a36..9b92f44 100644
> --- a/include/linux/ethtool.h
> +++ b/include/linux/ethtool.h
> @@ -489,6 +489,7 @@ struct ethtool_ops {
>  	int	(*get_stats_count)(struct net_device *);/* use get_sset_count */
>  	int	(*get_rxnfc)(struct net_device *, struct ethtool_rxnfc *, void *);
>  	int	(*set_rxnfc)(struct net_device *, struct ethtool_rxnfc *);
> +	int     (*flash_device)(struct net_device *);
>  };
>  #endif /* __KERNEL__ */
>  
> @@ -545,6 +546,8 @@ struct ethtool_ops {
>  #define	ETHTOOL_GRXCLSRLALL	0x00000030 /* Get all RX classification rule */
>  #define	ETHTOOL_SRXCLSRLDEL	0x00000031 /* Delete RX classification rule */
>  #define	ETHTOOL_SRXCLSRLINS	0x00000032 /* Insert RX classification rule */
> +#define	ETHTOOL_FLASHDEV	0x00000033 /* Flash firmware to device
> +					    * (ethtool_value). */
>  
>  /* compatibility with older code */
>  #define SPARC_ETH_GSET		ETHTOOL_GSET
> diff --git a/net/core/ethtool.c b/net/core/ethtool.c
> index 44e5711..0524201 100644
> --- a/net/core/ethtool.c
> +++ b/net/core/ethtool.c
> @@ -898,6 +898,16 @@ static int ethtool_set_value(struct net_device *dev, char __user *useraddr,
>  	return actor(dev, edata.data);
>  }
>  
> +static int ethtool_flash_device(struct net_device *dev)
> +{
> +	int err;
> +
> +	if (!dev->ethtool_ops->flash_device)
> +		return -EOPNOTSUPP;
> +
> +	return dev->ethtool_ops->flash_device(dev);
> +}
> +
>  /* The main entry point in this file.  Called from net/core/dev.c */
>  
>  int dev_ethtool(struct net *net, struct ifreq *ifr)
> @@ -1111,6 +1121,9 @@ int dev_ethtool(struct net *net, struct ifreq *ifr)
>  	case ETHTOOL_SGRO:
>  		rc = ethtool_set_gro(dev, useraddr);
>  		break;
> +	case ETHTOOL_FLASHDEV:
> +		rc = ethtool_flash_device(dev);
> +		break;
>  	default:
>  		rc = -EOPNOTSUPP;
>  	}
> -- 
> 1.6.0.4
> 
> --
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