From: Simon Horman <horms@kernel.org>
To: Paul Blakey <paulb@nvidia.com>
Cc: netdev@vger.kernel.org, Saeed Mahameed <saeedm@nvidia.com>,
Paolo Abeni <pabeni@redhat.com>, Jakub Kicinski <kuba@kernel.org>,
Eric Dumazet <edumazet@google.com>,
Jamal Hadi Salim <jhs@mojatatu.com>,
Cong Wang <xiyou.wangcong@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Oz Shlomo <ozsh@nvidia.com>, Jiri Pirko <jiri@nvidia.com>,
Roi Dayan <roid@nvidia.com>, Vlad Buslov <vladbu@nvidia.com>
Subject: Re: [PATCH net-next v5 1/6] net/sched: cls_api: Support hardware miss to tc action
Date: Sat, 28 Jan 2023 17:45:00 +0100 [thread overview]
Message-ID: <Y9VRDCtpKGLjM4C6@vergenet.net> (raw)
In-Reply-To: <20230125153218.7230-2-paulb@nvidia.com>
On Wed, Jan 25, 2023 at 05:32:13PM +0200, Paul Blakey wrote:
> For drivers to support partial offload of a filter's action list,
> add support for action miss to specify an action instance to
> continue from in sw.
>
> CT action in particular can't be fully offloaded, as new connections
> need to be handled in software. This imposes other limitations on
> the actions that can be offloaded together with the CT action, such
> as packet modifications.
>
> Assign each action on a filter's action list a unique miss_cookie
> which drivers can then use to fill action_miss part of the tc skb
> extension. On getting back this miss_cookie, find the action
> instance with relevant cookie and continue classifying from there.
>
> Signed-off-by: Paul Blakey <paulb@nvidia.com>
> Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
next prev parent reply other threads:[~2023-01-28 16:55 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-25 15:32 [PATCH net-next v5 0/6] net/sched: cls_api: Support hardware miss to tc action Paul Blakey
2023-01-25 15:32 ` [PATCH net-next v5 1/6] " Paul Blakey
2023-01-28 13:56 ` Jamal Hadi Salim
2023-01-28 16:45 ` Simon Horman [this message]
2023-01-28 16:52 ` Simon Horman
2023-01-25 15:32 ` [PATCH net-next v5 2/6] net/sched: flower: Move filter handle initialization earlier Paul Blakey
2023-01-28 16:45 ` Simon Horman
2023-01-25 15:32 ` [PATCH net-next v5 3/6] net/sched: flower: Support hardware miss to tc action Paul Blakey
2023-01-28 16:45 ` Simon Horman
2023-01-25 15:32 ` [PATCH net-next v5 4/6] net/mlx5: Refactor tc miss handling to a single function Paul Blakey
2023-01-25 15:32 ` [PATCH net-next v5 5/6] net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG Paul Blakey
2023-01-25 15:32 ` [PATCH net-next v5 6/6] net/mlx5e: TC, Set CT miss to the specific ct action instance Paul Blakey
2023-01-28 8:16 ` [PATCH net-next v5 0/6] net/sched: cls_api: Support hardware miss to tc action Jakub Kicinski
2023-01-28 8:18 ` Jakub Kicinski
2023-01-28 8:59 ` Vlad Buslov
2023-01-28 15:12 ` Vlad Buslov
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