netdev - Re: [PATCH v2 net-next 08/12] net: aquantia: add support for ptp ioctls

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Message-ID: <20191014162319.GO21165@lunn.ch>
Date:   Mon, 14 Oct 2019 18:23:19 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Igor Russkikh <Igor.Russkikh@...antia.com>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "richardcochran@...il.com" <richardcochran@...il.com>,
        Egor Pomozov <Egor.Pomozov@...antia.com>,
        Dmitry Bezrukov <Dmitry.Bezrukov@...antia.com>,
        Simon Edelhaus <sedelhaus@...vell.com>,
        Sergey Samoilenko <Sergey.Samoilenko@...antia.com>
Subject: Re: [PATCH v2 net-next 08/12] net: aquantia: add support for ptp
 ioctls

> +static int aq_ndev_config_hwtstamp(struct aq_nic_s *aq_nic,
> +				   struct hwtstamp_config *config)
> +{
> +	if (config->flags)
> +		return -EINVAL;
> +
> +	switch (config->tx_type) {
> +	case HWTSTAMP_TX_OFF:
> +	case HWTSTAMP_TX_ON:
> +		break;
> +	default:
> +		return -ERANGE;
> +	}
> +
> +	switch (config->rx_filter) {
> +	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
> +	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
> +	case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
> +	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
> +	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
> +	case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
> +	case HWTSTAMP_FILTER_PTP_V2_SYNC:
> +	case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:

Probably a question of Richard

I think this hardware only supports IPv4. Is there some way to
indicate IPv6 is not supported?

	 Andrew