netdev - Re: [PATCH -next] sundance: Add initial ethtool stats support

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Message-ID: <1286627613.2692.26.camel@edumazet-laptop>
Date:	Sat, 09 Oct 2010 14:33:33 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Denis Kirjanov <dkirjanov@...nel.org>
Cc:	davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH -next] sundance: Add initial ethtool stats support

Le samedi 09 octobre 2010 à 09:53 +0000, Denis Kirjanov a écrit :
> Add initial ethtool statistics support 
> 
> Signed-off-by: Denis Kirjanov <dkirjanov@...nel.org>
> ---
>  drivers/net/sundance.c |   46 ++++++++++++++++++++++++++++++++++++++++++++++
>  1 files changed, 46 insertions(+), 0 deletions(-)
> 
> diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c
> index 27d69aa..685845b 100644
> --- a/drivers/net/sundance.c
> +++ b/drivers/net/sundance.c
> @@ -1564,6 +1564,18 @@ static int __set_mac_addr(struct net_device *dev)
>  	return 0;
>  }
>  
> +static const struct {
> +	const char name[ETH_GSTRING_LEN];
> +} sundance_stats[] = {
> +	{ "tx_packets" },
> +	{ "tx_bytes" },
> +	{ "rx_packets" },
> +	{ "rx_bytes" },
> +	{ "tx_errors" },
> +	{ "tx_dropped" },
> +	{ "rx_errors" },
> +};
> +
>  static int check_if_running(struct net_device *dev)
>  {
>  	if (!netif_running(dev))
> @@ -1622,6 +1634,37 @@ static void set_msglevel(struct net_device *dev, u32 val)
>  	np->msg_enable = val;
>  }
>  
> +static void get_strings(struct net_device *dev, u32 stringset,
> +		u8 *data)
> +{

	if (stringset != ETH_SS_STATS)
		return;

> +	memcpy(data, sundance_stats, sizeof(sundance_stats));
> +}
> +
> +static int get_sset_count(struct net_device *dev, int sset)
> +{
> +	switch (sset) {
> +	case ETH_SS_STATS:
> +		return ARRAY_SIZE(sundance_stats);
> +	default:
> +		return -EOPNOTSUPP;
> +	}
> +}
> +
> +static void get_ethtool_stats(struct net_device *dev,
> +		struct ethtool_stats *stats, u64 *data)
> +{
> +	struct net_device_stats *netdev_stats = get_stats(dev);
> +	int i = 0;
> +
> +	data[i++] = netdev_stats->tx_packets;
> +	data[i++] = netdev_stats->tx_bytes;
> +	data[i++] = netdev_stats->rx_packets;
> +	data[i++] = netdev_stats->rx_bytes;
> +	data[i++] = netdev_stats->tx_errors;
> +	data[i++] = netdev_stats->tx_dropped;
> +	data[i++] = netdev_stats->rx_errors;
> +}
> +
>  static const struct ethtool_ops ethtool_ops = {
>  	.begin = check_if_running,
>  	.get_drvinfo = get_drvinfo,
> @@ -1631,6 +1674,9 @@ static const struct ethtool_ops ethtool_ops = {
>  	.get_link = get_link,
>  	.get_msglevel = get_msglevel,
>  	.set_msglevel = set_msglevel,
> +	.get_strings = get_strings,
> +	.get_sset_count = get_sset_count,
> +	.get_ethtool_stats = get_ethtool_stats,
>  };
>  
>  static int netdev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)


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