Re: [PATCH net-next v01 2/7] hinic3: Add ethtool statistic ops

[Maxime Chevallier <maxime.chevallier@bootlin.com>]

Hi,

On 13/03/2026 08:54, Fan Gong wrote:
>   Add PF/VF statistics functions in TX and RX processing.
>   Implement following ethtool callback function:
> .get_sset_count
> .get_ethtool_stats
> .get_strings
> .get_eth_phy_stats
> .get_eth_mac_stats
> .get_eth_ctrl_stats
> .get_rmon_stats
> .get_pause_stats
> 
>   These callbacks allow users to utilize ethtool for detailed
> TX and RX netdev stats monitoring.
> 
> Co-developed-by: Zhu Yikai <zhuyikai1@h-partners.com>
> Signed-off-by: Zhu Yikai <zhuyikai1@h-partners.com>
> Signed-off-by: Fan Gong <gongfan1@huawei.com>

[...]

> +static void hinic3_get_eth_phy_stats(struct net_device *netdev,
> +				     struct ethtool_eth_phy_stats *phy_stats)
> +{
> +	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
> +	struct mag_cmd_port_stats *ps;
> +	int err;
> +
> +	ps = kmalloc_obj(*ps);
> +	if (!ps)
> +		return;
> +
> +	err = hinic3_get_phy_port_stats(nic_dev->hwdev, ps);
> +	if (err) {
> +		kfree(ps);
> +		netdev_err(netdev, "Failed to get eth phy stats from fw\n");
> +		return;
> +	}
> +
> +	phy_stats->SymbolErrorDuringCarrier = ps->mac_rx_sym_err_pkt_num;

ps isn't kfree'd ?

> +}
> +
> +static void hinic3_get_eth_mac_stats(struct net_device *netdev,
> +				     struct ethtool_eth_mac_stats *mac_stats)
> +{
> +	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
> +	struct mag_cmd_port_stats *ps;
> +	int err;
> +
> +	ps = kmalloc_obj(*ps);
> +	if (!ps)
> +		return;
> +
> +	err = hinic3_get_phy_port_stats(nic_dev->hwdev, ps);
> +	if (err) {
> +		kfree(ps);
> +		netdev_err(netdev, "Failed to get eth mac stats from fw\n");
> +		return;
> +	}
> +
> +	mac_stats->FramesTransmittedOK = ps->mac_tx_uni_pkt_num +
> +					 ps->mac_tx_multi_pkt_num +
> +					 ps->mac_tx_broad_pkt_num;
> +	mac_stats->FramesReceivedOK = ps->mac_rx_uni_pkt_num +
> +				      ps->mac_rx_multi_pkt_num +
> +				      ps->mac_rx_broad_pkt_num;
> +	mac_stats->FrameCheckSequenceErrors = ps->mac_rx_fcs_err_pkt_num;
> +	mac_stats->OctetsTransmittedOK = ps->mac_tx_total_oct_num;
> +	mac_stats->OctetsReceivedOK = ps->mac_rx_total_oct_num;
> +	mac_stats->MulticastFramesXmittedOK = ps->mac_tx_multi_pkt_num;
> +	mac_stats->BroadcastFramesXmittedOK = ps->mac_tx_broad_pkt_num;
> +	mac_stats->MulticastFramesReceivedOK = ps->mac_rx_multi_pkt_num;
> +	mac_stats->BroadcastFramesReceivedOK = ps->mac_rx_broad_pkt_num;
> +	mac_stats->InRangeLengthErrors = ps->mac_rx_fcs_err_pkt_num;
> +	mac_stats->OutOfRangeLengthField = ps->mac_rx_undersize_pkt_num +
> +					   ps->mac_rx_undermin_pkt_num +
> +					   ps->mac_rx_oversize_pkt_num +
> +					   ps->mac_rx_jabber_pkt_num;
> +	mac_stats->FrameTooLongErrors = ps->mac_rx_oversize_pkt_num +
> +					ps->mac_rx_jabber_pkt_num;

same here ?

> +}
> +
> +static void hinic3_get_eth_ctrl_stats(struct net_device *netdev,
> +				      struct ethtool_eth_ctrl_stats *ctrl_stats)
> +{
> +	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
> +	struct mag_cmd_port_stats *ps;
> +	int err;
> +
> +	ps = kmalloc_obj(*ps);
> +	if (!ps)
> +		return;
> +
> +	err = hinic3_get_phy_port_stats(nic_dev->hwdev, ps);
> +	if (err) {
> +		kfree(ps);
> +		netdev_err(netdev, "Failed to get eth ctrl stats from fw\n");
> +		return;
> +	}
> +
> +	ctrl_stats->MACControlFramesTransmitted = ps->mac_tx_control_pkt_num;
> +	ctrl_stats->MACControlFramesReceived = ps->mac_rx_control_pkt_num;

same here ?

> +}
> +
> +static const struct ethtool_rmon_hist_range hinic3_rmon_ranges[] = {
> +	{     0,    64 },
> +	{    65,   127 },
> +	{   128,   255 },
> +	{   256,   511 },
> +	{   512,  1023 },
> +	{  1024,  1518 },
> +	{  1519,  2047 },
> +	{  2048,  4095 },
> +	{  4096,  8191 },
> +	{  8192,  9216 },
> +	{  9217, 12287 },
> +	{}
> +};
> +
> +static void hinic3_get_rmon_stats(struct net_device *netdev,
> +				  struct ethtool_rmon_stats *rmon_stats,
> +				  const struct ethtool_rmon_hist_range **ranges)
> +{
> +	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
> +	struct mag_cmd_port_stats *ps;
> +	int err;
> +
> +	ps = kmalloc_obj(*ps);
> +	if (!ps)
> +		return;
> +
> +	err = hinic3_get_phy_port_stats(nic_dev->hwdev, ps);
> +	if (err) {
> +		kfree(ps);
> +		netdev_err(netdev, "Failed to get eth rmon stats from fw\n");
> +		return;
> +	}
> +
> +	rmon_stats->undersize_pkts	= ps->mac_rx_undersize_pkt_num;
> +	rmon_stats->oversize_pkts	= ps->mac_rx_oversize_pkt_num;
> +	rmon_stats->fragments		= ps->mac_rx_fragment_pkt_num;
> +	rmon_stats->jabbers		= ps->mac_rx_jabber_pkt_num;
> +
> +	rmon_stats->hist[0]		= ps->mac_rx_64_oct_pkt_num;
> +	rmon_stats->hist[1]		= ps->mac_rx_65_127_oct_pkt_num;
> +	rmon_stats->hist[2]		= ps->mac_rx_128_255_oct_pkt_num;
> +	rmon_stats->hist[3]		= ps->mac_rx_256_511_oct_pkt_num;
> +	rmon_stats->hist[4]		= ps->mac_rx_512_1023_oct_pkt_num;
> +	rmon_stats->hist[5]		= ps->mac_rx_1024_1518_oct_pkt_num;
> +	rmon_stats->hist[6]		= ps->mac_rx_1519_2047_oct_pkt_num;
> +	rmon_stats->hist[7]		= ps->mac_rx_2048_4095_oct_pkt_num;
> +	rmon_stats->hist[8]		= ps->mac_rx_4096_8191_oct_pkt_num;
> +	rmon_stats->hist[9]		= ps->mac_rx_8192_9216_oct_pkt_num;
> +	rmon_stats->hist[10]		= ps->mac_rx_9217_12287_oct_pkt_num;
> +
> +	rmon_stats->hist_tx[0]		= ps->mac_tx_64_oct_pkt_num;
> +	rmon_stats->hist_tx[1]		= ps->mac_tx_65_127_oct_pkt_num;
> +	rmon_stats->hist_tx[2]		= ps->mac_tx_128_255_oct_pkt_num;
> +	rmon_stats->hist_tx[3]		= ps->mac_tx_256_511_oct_pkt_num;
> +	rmon_stats->hist_tx[4]		= ps->mac_tx_512_1023_oct_pkt_num;
> +	rmon_stats->hist_tx[5]		= ps->mac_tx_1024_1518_oct_pkt_num;
> +	rmon_stats->hist_tx[6]		= ps->mac_tx_1519_2047_oct_pkt_num;
> +	rmon_stats->hist_tx[7]		= ps->mac_tx_2048_4095_oct_pkt_num;
> +	rmon_stats->hist_tx[8]		= ps->mac_tx_4096_8191_oct_pkt_num;
> +	rmon_stats->hist_tx[9]		= ps->mac_tx_8192_9216_oct_pkt_num;
> +	rmon_stats->hist_tx[10]		= ps->mac_tx_9217_12287_oct_pkt_num;
> +
> +	*ranges = hinic3_rmon_ranges;

same here ?

> +}
> +
> +static void hinic3_get_pause_stats(struct net_device *netdev,
> +				   struct ethtool_pause_stats *pause_stats)
> +{
> +	struct hinic3_nic_dev *nic_dev = netdev_priv(netdev);
> +	struct mag_cmd_port_stats *ps;
> +	int err;
> +
> +	ps = kmalloc_obj(*ps);
> +	if (!ps)
> +		return;
> +
> +	err = hinic3_get_phy_port_stats(nic_dev->hwdev, ps);
> +	if (err) {
> +		kfree(ps);
> +		netdev_err(netdev, "Failed to get eth pause stats from fw\n");
> +		return;
> +	}
> +
> +	pause_stats->tx_pause_frames = ps->mac_tx_pause_num;
> +	pause_stats->rx_pause_frames = ps->mac_rx_pause_num;

same here ?

or am I missing some cleanup.h magic somewhere ?

Maxime