netdev - Re: [PATCH net-next v3 4/9] net/sched: introduce flow

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Message-ID: <20230210023222.qsycaheyozpe2rfm@t14s.localdomain>
Date:   Thu, 9 Feb 2023 18:32:22 -0800
From:   Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
To:     Oz Shlomo <ozsh@...dia.com>
Cc:     netdev@...r.kernel.org, Saeed Mahameed <saeedm@...dia.com>,
        Roi Dayan <roid@...dia.com>, Jiri Pirko <jiri@...dia.com>,
        Marcelo Ricardo Leitner <mleitner@...hat.com>,
        Simon Horman <simon.horman@...igine.com>,
        Baowen Zheng <baowen.zheng@...igine.com>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Edward Cree <ecree.xilinx@...il.com>
Subject: Re: [PATCH  net-next v3 4/9] net/sched: introduce flow_offload
 action cookie

On Mon, Feb 06, 2023 at 03:54:37PM +0200, Oz Shlomo wrote:
> Currently a hardware action is uniquely identified by the <id, hw_index>
> tuple. However, the id is set by the flow_act_setup callback and tc core
> cannot enforce this, and it is possible that a future change could break
> this. In addition, <id, hw_index> are not unique across network namespaces.
> 
> Uniquely identify the action by setting an action cookie by the tc core.
> Use the unique action cookie to query the action's hardware stats.
> 
> Signed-off-by: Oz Shlomo <ozsh@...dia.com>
> Reviewed-by: Simon Horman <simon.horman@...igine.com>

Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@...il.com>