Re: [PATCH net-next 5/5] net: dsa: mxl862xx: add SerDes ethtool statistics

[Vladimir Oltean <olteanv@gmail.com>]

On Tue, May 19, 2026 at 06:39:29PM +0100, Daniel Golle wrote:
> +/* --- SerDes ethtool statistics --- */
> +
> +static const char mxl862xx_serdes_stats[][ETH_GSTRING_LEN] = {
> +	"serdes_tx_main",
> +	"serdes_tx_pre",
> +	"serdes_tx_post",
> +	"serdes_tx_iboost",
> +	"serdes_tx_vboost",
> +	"serdes_tx_vboost_en",
> +	"serdes_rx_att",
> +	"serdes_rx_vga1",
> +	"serdes_rx_vga2",
> +	"serdes_rx_ctle_boost",
> +	"serdes_rx_ctle_pole",
> +	"serdes_rx_dfe_tap1",
> +	"serdes_rx_dfe_bypass",
> +	"serdes_rx_adapt_mode",
> +	"serdes_rx_adapt_sel",
> +	"serdes_rx_signal",
> +	"serdes_pma_link",
> +	"serdes_link_fault",
> +	"serdes_in_reset",
> +};

Which of these are statistics counters, and which of _those_ are
Ethernet-specific (SerDes may be multiprotocol, also supporting PCIe
etc, and the info above is all protocol-agnostic)?

I'm trying to hint at the fact that ethtool is not the right interface
for presenting such information. Intuitively, I would suggest we need to
put head to head various SerDes designs and present to Vinod Koul a
netlink UAPI for monitoring purposes.