September 12, 2023 at 12:15 AM, "Stephen Hemminger" <[email protected]> wrote:
>
> On Mon, 11 Sep 2023 16:20:16 +0800
> Yajun Deng <[email protected]> wrote:
>
> >
> > Although there is a kfree_skb_reason() helper function that can be
> > used to find the reason for dropped packets, but most callers didn't
> > increase one of rx_dropped, tx_dropped, rx_nohandler and
> > rx_otherhost_dropped.
> >
> > For the users, people are more concerned about why the dropped in
> > ifconfig is increasing. So we can export
> > dev_core_stats_rx_dropped_inc sets, which users would trace them know
> > why rx_dropped is increasing.
> >
>
> ifconfig has been frozen for over 10 years, and is deprecated so there
> is no point in catering to legacy api's. There are better API's such as
> ethtool and netlink that can provide more info.
>
Yes, ifconfig is deprecated. but the dropped in ifconfig and ip is the same.
We're more concerned about the reason for dropped packets.
ip, ethtool and netlink couldn't show the reason.