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Message-ID: <33546397-6078-44c5-b5c6-15c917b18da5@huawei.com>
Date: Mon, 20 Oct 2025 10:00:46 +0800
From: Jijie Shao <shaojijie@...wei.com>
To: Vadim Fedorenko <vadim.fedorenko@...ux.dev>, Jian Shen
<shenjian15@...wei.com>, Salil Mehta <salil.mehta@...wei.com>, Andrew Lunn
<andrew+netdev@...n.ch>, "David S. Miller" <davem@...emloft.net>, Eric
Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
<pabeni@...hat.com>, Sunil Goutham <sgoutham@...vell.com>, Geetha sowjanya
<gakula@...vell.com>, Subbaraya Sundeep <sbhatta@...vell.com>, Bharat Bhushan
<bbhushan2@...vell.com>, Tariq Toukan <tariqt@...dia.com>, Brett Creeley
<brett.creeley@....com>, Niklas Söderlund
<niklas.soderlund@...natech.se>, Paul Barker <paul@...rker.dev>, Yoshihiro
Shimoda <yoshihiro.shimoda.uh@...esas.com>
CC: <shaojijie@...wei.com>, <linux-renesas-soc@...r.kernel.org>, Richard
Cochran <richardcochran@...il.com>, Russell King <linux@...linux.org.uk>,
Vladimir Oltean <vladimir.oltean@....com>, Simon Horman <horms@...nel.org>,
Jacob Keller <jacob.e.keller@...el.com>, <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next v2 6/6] net: hns3: add hwtstamp_get/hwtstamp_set
ops
on 2025/10/18 2:21, Vadim Fedorenko wrote:
> And .ndo_hwtstamp_get()/.ndo_hwtstamp_set() callbacks to HNS3 framework
> to support HW timestamp configuration via netlink and adopt hns3pf to
> use .ndo_hwtstamp_get()/.ndo_hwtstamp_set() callbacks.
>
> Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>
> Signed-off-by: Vadim Fedorenko <vadim.fedorenko@...ux.dev>
Thanks,
Reviewed-by: Jijie Shao <shaojijie@...wei.com>
> ---
> v1 -> v2:
> - actually assign ndo_tstamp callbacks
> ---
> drivers/net/ethernet/hisilicon/hns3/hnae3.h | 5 +++
> .../net/ethernet/hisilicon/hns3/hns3_enet.c | 31 ++++++++++++++++++
> .../hisilicon/hns3/hns3pf/hclge_main.c | 13 +++-----
> .../hisilicon/hns3/hns3pf/hclge_ptp.c | 32 +++++++++++--------
> .../hisilicon/hns3/hns3pf/hclge_ptp.h | 9 ++++--
> 5 files changed, 64 insertions(+), 26 deletions(-)
>
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
> index 3b548f71fa8a..d7c3df1958f3 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
> +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
> @@ -804,6 +804,11 @@ struct hnae3_ae_ops {
> int (*dbg_get_read_func)(struct hnae3_handle *handle,
> enum hnae3_dbg_cmd cmd,
> read_func *func);
> + int (*hwtstamp_get)(struct hnae3_handle *handle,
> + struct kernel_hwtstamp_config *config);
> + int (*hwtstamp_set)(struct hnae3_handle *handle,
> + struct kernel_hwtstamp_config *config,
> + struct netlink_ext_ack *extack);
> };
>
> struct hnae3_dcb_ops {
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
> index bfa5568baa92..7a0654e2d3dd 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
> @@ -2419,6 +2419,35 @@ static int hns3_nic_do_ioctl(struct net_device *netdev,
> return h->ae_algo->ops->do_ioctl(h, ifr, cmd);
> }
>
> +static int hns3_nic_hwtstamp_get(struct net_device *netdev,
> + struct kernel_hwtstamp_config *config)
> +{
> + struct hnae3_handle *h = hns3_get_handle(netdev);
> +
> + if (!netif_running(netdev))
> + return -EINVAL;
> +
> + if (!h->ae_algo->ops->hwtstamp_get)
> + return -EOPNOTSUPP;
> +
> + return h->ae_algo->ops->hwtstamp_get(h, config);
> +}
> +
> +static int hns3_nic_hwtstamp_set(struct net_device *netdev,
> + struct kernel_hwtstamp_config *config,
> + struct netlink_ext_ack *extack)
> +{
> + struct hnae3_handle *h = hns3_get_handle(netdev);
> +
> + if (!netif_running(netdev))
> + return -EINVAL;
> +
> + if (!h->ae_algo->ops->hwtstamp_set)
> + return -EOPNOTSUPP;
> +
> + return h->ae_algo->ops->hwtstamp_set(h, config, extack);
> +}
> +
> static int hns3_nic_set_features(struct net_device *netdev,
> netdev_features_t features)
> {
> @@ -3048,6 +3077,8 @@ static const struct net_device_ops hns3_nic_netdev_ops = {
> .ndo_set_vf_rate = hns3_nic_set_vf_rate,
> .ndo_set_vf_mac = hns3_nic_set_vf_mac,
> .ndo_select_queue = hns3_nic_select_queue,
> + .ndo_hwtstamp_get = hns3_nic_hwtstamp_get,
> + .ndo_hwtstamp_set = hns3_nic_hwtstamp_set,
> };
>
> bool hns3_is_phys_func(struct pci_dev *pdev)
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
> index 9d34d28ff168..81d3bdc098e6 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
> @@ -9445,15 +9445,8 @@ static int hclge_do_ioctl(struct hnae3_handle *handle, struct ifreq *ifr,
> struct hclge_vport *vport = hclge_get_vport(handle);
> struct hclge_dev *hdev = vport->back;
>
> - switch (cmd) {
> - case SIOCGHWTSTAMP:
> - return hclge_ptp_get_cfg(hdev, ifr);
> - case SIOCSHWTSTAMP:
> - return hclge_ptp_set_cfg(hdev, ifr);
> - default:
> - if (!hdev->hw.mac.phydev)
> - return hclge_mii_ioctl(hdev, ifr, cmd);
> - }
> + if (!hdev->hw.mac.phydev)
> + return hclge_mii_ioctl(hdev, ifr, cmd);
>
> return phy_mii_ioctl(hdev->hw.mac.phydev, ifr, cmd);
> }
> @@ -12901,6 +12894,8 @@ static const struct hnae3_ae_ops hclge_ops = {
> .get_dscp_prio = hclge_get_dscp_prio,
> .get_wol = hclge_get_wol,
> .set_wol = hclge_set_wol,
> + .hwtstamp_get = hclge_ptp_get_cfg,
> + .hwtstamp_set = hclge_ptp_set_cfg,
> };
>
> static struct hnae3_ae_algo ae_algo = {
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.c
> index 4bd52eab3914..0081c5281455 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.c
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.c
> @@ -204,13 +204,17 @@ static int hclge_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta)
> return 0;
> }
>
> -int hclge_ptp_get_cfg(struct hclge_dev *hdev, struct ifreq *ifr)
> +int hclge_ptp_get_cfg(struct hnae3_handle *handle,
> + struct kernel_hwtstamp_config *config)
> {
> + struct hclge_vport *vport = hclge_get_vport(handle);
> + struct hclge_dev *hdev = vport->back;
> +
> if (!test_bit(HCLGE_STATE_PTP_EN, &hdev->state))
> return -EOPNOTSUPP;
>
> - return copy_to_user(ifr->ifr_data, &hdev->ptp->ts_cfg,
> - sizeof(struct hwtstamp_config)) ? -EFAULT : 0;
> + *config = hdev->ptp->ts_cfg;
> + return 0;
> }
>
> static int hclge_ptp_int_en(struct hclge_dev *hdev, bool en)
> @@ -269,7 +273,7 @@ static int hclge_ptp_cfg(struct hclge_dev *hdev, u32 cfg)
> return ret;
> }
>
> -static int hclge_ptp_set_tx_mode(struct hwtstamp_config *cfg,
> +static int hclge_ptp_set_tx_mode(struct kernel_hwtstamp_config *cfg,
> unsigned long *flags, u32 *ptp_cfg)
> {
> switch (cfg->tx_type) {
> @@ -287,7 +291,7 @@ static int hclge_ptp_set_tx_mode(struct hwtstamp_config *cfg,
> return 0;
> }
>
> -static int hclge_ptp_set_rx_mode(struct hwtstamp_config *cfg,
> +static int hclge_ptp_set_rx_mode(struct kernel_hwtstamp_config *cfg,
> unsigned long *flags, u32 *ptp_cfg)
> {
> int rx_filter = cfg->rx_filter;
> @@ -332,7 +336,7 @@ static int hclge_ptp_set_rx_mode(struct hwtstamp_config *cfg,
> }
>
> static int hclge_ptp_set_ts_mode(struct hclge_dev *hdev,
> - struct hwtstamp_config *cfg)
> + struct kernel_hwtstamp_config *cfg)
> {
> unsigned long flags = hdev->ptp->flags;
> u32 ptp_cfg = 0;
> @@ -359,9 +363,12 @@ static int hclge_ptp_set_ts_mode(struct hclge_dev *hdev,
> return 0;
> }
>
> -int hclge_ptp_set_cfg(struct hclge_dev *hdev, struct ifreq *ifr)
> +int hclge_ptp_set_cfg(struct hnae3_handle *handle,
> + struct kernel_hwtstamp_config *config,
> + struct netlink_ext_ack *extack)
> {
> - struct hwtstamp_config cfg;
> + struct hclge_vport *vport = hclge_get_vport(handle);
> + struct hclge_dev *hdev = vport->back;
> int ret;
>
> if (!test_bit(HCLGE_STATE_PTP_EN, &hdev->state)) {
> @@ -369,16 +376,13 @@ int hclge_ptp_set_cfg(struct hclge_dev *hdev, struct ifreq *ifr)
> return -EOPNOTSUPP;
> }
>
> - if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
> - return -EFAULT;
> -
> - ret = hclge_ptp_set_ts_mode(hdev, &cfg);
> + ret = hclge_ptp_set_ts_mode(hdev, config);
> if (ret)
> return ret;
>
> - hdev->ptp->ts_cfg = cfg;
> + hdev->ptp->ts_cfg = *config;
>
> - return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
> + return 0;
> }
>
> int hclge_ptp_get_ts_info(struct hnae3_handle *handle,
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.h
> index 61faddcc3dd0..0162fa5ac146 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.h
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ptp.h
> @@ -62,7 +62,7 @@ struct hclge_ptp {
> unsigned long flags;
> void __iomem *io_base;
> struct ptp_clock_info info;
> - struct hwtstamp_config ts_cfg;
> + struct kernel_hwtstamp_config ts_cfg;
> spinlock_t lock; /* protects ptp registers */
> u32 ptp_cfg;
> u32 last_tx_seqid;
> @@ -133,8 +133,11 @@ bool hclge_ptp_set_tx_info(struct hnae3_handle *handle, struct sk_buff *skb);
> void hclge_ptp_clean_tx_hwts(struct hclge_dev *hdev);
> void hclge_ptp_get_rx_hwts(struct hnae3_handle *handle, struct sk_buff *skb,
> u32 nsec, u32 sec);
> -int hclge_ptp_get_cfg(struct hclge_dev *hdev, struct ifreq *ifr);
> -int hclge_ptp_set_cfg(struct hclge_dev *hdev, struct ifreq *ifr);
> +int hclge_ptp_get_cfg(struct hnae3_handle *handle,
> + struct kernel_hwtstamp_config *config);
> +int hclge_ptp_set_cfg(struct hnae3_handle *handle,
> + struct kernel_hwtstamp_config *config,
> + struct netlink_ext_ack *extack);
> int hclge_ptp_init(struct hclge_dev *hdev);
> void hclge_ptp_uninit(struct hclge_dev *hdev);
> int hclge_ptp_get_ts_info(struct hnae3_handle *handle,
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