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Date:   Thu, 4 Aug 2022 10:00:37 -0700
From:   Eric Dumazet <edumazet@...gle.com>
To:     Adel Abouchaev <adel.abushaev@...il.com>
Cc:     Andrew Lunn <andrew@...n.ch>, Jakub Kicinski <kuba@...nel.org>,
        David Miller <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>,
        Jonathan Corbet <corbet@....net>,
        David Ahern <dsahern@...nel.org>,
        Shuah Khan <shuah@...nel.org>,
        Menglong Dong <imagedong@...cent.com>,
        netdev <netdev@...r.kernel.org>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>
Subject: Re: [RFC net-next 1/6] net: Documentation on QUIC kernel Tx crypto.

On Thu, Aug 4, 2022 at 9:58 AM Adel Abouchaev <adel.abushaev@...il.com> wrote:
>
> Looking at
> https://github.com/shemminger/iproute2/blob/main/misc/ss.c#L589 the ss.c
> still uses proc/.
>

Only for legacy reasons.

ss -t for sure will use netlink first, then fallback to /proc

New counters should use netlink, please.

> Adel.
>
> On 8/4/22 8:29 AM, Andrew Lunn wrote:
> > On Wed, Aug 03, 2022 at 11:51:59AM -0700, Adel Abouchaev wrote:
> >> Andrew,
> >>
> >>     Could you add more to your comment? The /proc was used similarly to kTLS.
> >> Netlink is better, though, unsure how ULP stats would fit in it.
> > How do tools like ss(1) retrieve the protocol summary statistics? Do
> > they still use /proc, or netlink?
> >
> >       Andrew

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