On Sat, May 05, 2018 at 11:35:29PM +0200, Andrea Greco wrote:
> From: Andrea Greco <a.gr...@4sigma.it>
>
> Setup ethtols for export com20020 diag register
>
> Signed-off-by: Andrea Greco <a.gr...@4sigma.it>
> ---
> drivers/net/arcnet/com20020-isa.c | 1 +
> drivers/net/arcnet/com20020-membus.c | 1 +
> drivers/net/arcnet/com20020.c | 29 +++++++++++++++++++++++++++++
> drivers/net/arcnet/com20020.h | 1 +
> drivers/net/arcnet/com20020_cs.c | 1 +
> include/uapi/linux/if_arcnet.h | 6 ++++++
> 6 files changed, 39 insertions(+)
>
> diff --git a/drivers/net/arcnet/com20020-isa.c
> b/drivers/net/arcnet/com20020-isa.c
> index 38fa60ddaf2e..44ab6dcccb58 100644
> --- a/drivers/net/arcnet/com20020-isa.c
> +++ b/drivers/net/arcnet/com20020-isa.c
> @@ -154,6 +154,7 @@ static int __init com20020_init(void)
> dev->dev_addr[0] = node;
>
> dev->netdev_ops = &com20020_netdev_ops;
> + dev->ethtool_ops = &com20020_ethtool_ops;
>
> lp = netdev_priv(dev);
> lp->backplane = backplane;
> diff --git a/drivers/net/arcnet/com20020-membus.c
> b/drivers/net/arcnet/com20020-membus.c
> index 6e4a2f3a84f7..9eead734a3cf 100644
> --- a/drivers/net/arcnet/com20020-membus.c
> +++ b/drivers/net/arcnet/com20020-membus.c
> @@ -91,6 +91,7 @@ static int com20020_probe(struct platform_device *pdev)
>
> dev = alloc_arcdev(NULL);// Let autoassign name arc%d
> dev->netdev_ops = &com20020_netdev_ops;
> + dev->ethtool_ops = &com20020_ethtool_ops;
> lp = netdev_priv(dev);
>
> lp->card_flags = ARC_CAN_10MBIT;/* pretend all of them can 10Mbit */
> diff --git a/drivers/net/arcnet/com20020.c b/drivers/net/arcnet/com20020.c
> index abd32ed8ec9b..2089b45e81c8 100644
> --- a/drivers/net/arcnet/com20020.c
> +++ b/drivers/net/arcnet/com20020.c
> @@ -201,6 +201,34 @@ const struct net_device_ops com20020_netdev_ops = {
> .ndo_set_rx_mode = com20020_set_mc_list,
> };
>
> +static int com20020_ethtool_regs_len(struct net_device *netdev)
> +{
> + return sizeof(struct com20020_ethtool_regs);
> +}
> +
> +static void com20020_ethtool_regs_read(struct net_device *dev,
> + struct ethtool_regs *regs, void *p)
> +{
> + struct arcnet_local *lp;
> + struct com20020_ethtool_regs *com_reg;
> +
> + lp = netdev_priv(dev);
> + memset(p, 0, sizeof(struct com20020_ethtool_regs));
perhaps:
struct arcnet_local *lp = netdev_priv(dev);
struct com20020_ethtool_regs *com_reg = p;
memset(com_reg, 0, sizeof(*com_reg));
> +
> + regs->version = 1;
Should this function really have a side effect? If so, perhaps it could
be commented.
> +
> + com_reg = p;
> +
> + com_reg->status = lp->hw.status(dev) & 0xFF;
> + com_reg->diag_register = (lp->hw.status(dev) >> 8) & 0xFF;
> + com_reg->reconf_count = lp->num_recons;
> +}
> +
> +const struct ethtool_ops com20020_ethtool_ops = {
> + .get_regs = com20020_ethtool_regs_read,
> + .get_regs_len = com20020_ethtool_regs_len,
> +};
> +
Hope this helps,
Tobin.
