linux-kernel - Re: [PATCH net-next v5 06/10] net: openvswitch: store sampling probability in cb.

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Message-ID: <09a9d8c3-b875-4d65-a98f-f2d3cf0d30bf@ovn.org>
Date: Wed, 26 Jun 2024 12:52:36 +0200
From: Ilya Maximets <i.maximets@....org>
To: Adrian Moreno <amorenoz@...hat.com>, netdev@...r.kernel.org
Cc: i.maximets@....org, aconole@...hat.com, echaudro@...hat.com,
 horms@...nel.org, dev@...nvswitch.org, Pravin B Shelar <pshelar@....org>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v5 06/10] net: openvswitch: store sampling
 probability in cb.

On 6/25/24 22:51, Adrian Moreno wrote:
> When a packet sample is observed, the sampling rate that was used is
> important to estimate the real frequency of such event.
> 
> Store the probability of the parent sample action in the skb's cb area
> and use it in emit_sample to pass it down to psample.
> 
> Signed-off-by: Adrian Moreno <amorenoz@...hat.com>
> ---
>  include/uapi/linux/openvswitch.h |  3 ++-
>  net/openvswitch/actions.c        | 20 +++++++++++++++++---
>  net/openvswitch/datapath.h       |  3 +++
>  net/openvswitch/vport.c          |  1 +
>  4 files changed, 23 insertions(+), 4 deletions(-)

Reviewed-by: Ilya Maximets <i.maximets@....org>