From: Adrien Mazarguil <adrien.mazarguil@6wind.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>, dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v5 2/6] net/mlx5: support basic flow items and actions
Date: Wed, 4 Jan 2017 19:42:22 +0100 [thread overview]
Message-ID: <20170104184222.GI12822@6wind.com> (raw)
In-Reply-To: <2973bbd2-8db3-f9e4-da9a-359e399527b3@intel.com>
Hi Ferruh,
On Wed, Jan 04, 2017 at 05:49:46PM +0000, Ferruh Yigit wrote:
> Hi Nelio,
>
> A quick question.
I'll reply since it's related to the API.
> On 12/29/2016 3:15 PM, Nelio Laranjeiro wrote:
> > Introduce initial software for rte_flow rules.
> >
> > VLAN, VXLAN are still not supported.
> >
> > Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
> > Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
>
> <...>
>
> > +static int
> > +priv_flow_validate(struct priv *priv,
> > + const struct rte_flow_attr *attr,
> > + const struct rte_flow_item items[],
> > + const struct rte_flow_action actions[],
> > + struct rte_flow_error *error,
> > + struct mlx5_flow *flow)
> > +{
> > + const struct mlx5_flow_items *cur_item = mlx5_flow_items;
>
> <...>
>
> > + for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) {
> <...>
> > + }
> > + for (; actions->type != RTE_FLOW_ACTION_TYPE_END; ++actions) {
> <...>
> > + }
>
> Is it guarantied in somewhere that items or actions terminated with
> TYPE_END?
Yes, since it's now the only way to terminate items/actions lists [1][2].
There used to be a "max" value in the original draft but it seemed redundant
and proved annoying to use, and was therefore dropped.
END items/actions behave like a NUL terminator for C strings. They are
likewise defined with value 0 for convenience.
> And these fields are direct inputs from user.
> Is there a way to verify user provided values are with TYPE_END terminated?
No, applications must check for its presence (they normally add it
themselves) before feeding these lists to PMDs. I think that's safe enough.
Note the testpmd flow command does not allow entering a flow rule without
"end" tokens in both lists, there is no way around this restriction.
[1] http://dpdk.org/doc/guides/prog_guide/rte_flow.html#matching-pattern
[2] http://dpdk.org/doc/guides/prog_guide/rte_flow.html#actions
--
Adrien Mazarguil
6WIND
next prev parent reply other threads:[~2017-01-04 18:42 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-25 18:14 [dpdk-dev] [PATCH 0/3] net/mlx5: support flow_rte Nelio Laranjeiro
2016-11-25 18:14 ` [dpdk-dev] [PATCH 1/3] net/mlx5: add preliminary support for rte_flow Nelio Laranjeiro
2016-11-25 18:14 ` [dpdk-dev] [PATCH 2/3] net/mlx5: add software " Nelio Laranjeiro
2016-11-25 18:14 ` [dpdk-dev] [PATCH 3/3] net/mlx5: add rte_flow rule creation Nelio Laranjeiro
2016-12-21 10:01 ` [dpdk-dev] [PATCH v2 0/4] net/mlx5: support flow_rte Nelio Laranjeiro
2016-12-21 15:19 ` [dpdk-dev] [PATCH v3 " Nelio Laranjeiro
2016-12-28 10:37 ` [dpdk-dev] [PATCH v4 0/6] net/mlx5: support flow API Nelio Laranjeiro
2016-12-29 15:15 ` [dpdk-dev] [PATCH v5 " Nelio Laranjeiro
2017-01-03 16:19 ` Ferruh Yigit
2017-01-04 14:48 ` Ferruh Yigit
2016-12-29 15:15 ` [dpdk-dev] [PATCH v5 1/6] net/mlx5: add preliminary flow API support Nelio Laranjeiro
2016-12-29 15:15 ` [dpdk-dev] [PATCH v5 2/6] net/mlx5: support basic flow items and actions Nelio Laranjeiro
2017-01-04 17:49 ` Ferruh Yigit
2017-01-04 18:42 ` Adrien Mazarguil [this message]
2017-01-06 13:52 ` Ferruh Yigit
2017-01-09 15:29 ` Adrien Mazarguil
2016-12-29 15:15 ` [dpdk-dev] [PATCH v5 3/6] net/mlx5: support VLAN flow item Nelio Laranjeiro
2016-12-29 15:15 ` [dpdk-dev] [PATCH v5 4/6] net/mlx5: support VXLAN " Nelio Laranjeiro
2016-12-29 15:15 ` [dpdk-dev] [PATCH v5 5/6] net/mlx5: support mark flow action Nelio Laranjeiro
2016-12-29 15:15 ` [dpdk-dev] [PATCH v5 6/6] net/mlx5: extend IPv4 flow item Nelio Laranjeiro
2016-12-28 10:37 ` [dpdk-dev] [PATCH v4 1/6] net/mlx5: add preliminary flow API support Nelio Laranjeiro
2016-12-28 10:37 ` [dpdk-dev] [PATCH v4 2/6] net/mlx5: support basic flow items and actions Nelio Laranjeiro
2016-12-28 10:37 ` [dpdk-dev] [PATCH v4 3/6] net/mlx5: support VLAN flow item Nelio Laranjeiro
2016-12-28 10:37 ` [dpdk-dev] [PATCH v4 4/6] net/mlx5: support VXLAN " Nelio Laranjeiro
2016-12-28 10:37 ` [dpdk-dev] [PATCH v4 5/6] net/mlx5: support mark flow action Nelio Laranjeiro
2016-12-28 10:37 ` [dpdk-dev] [PATCH v4 6/6] net/mlx5: extend IPv4 flow item Nelio Laranjeiro
2016-12-21 15:19 ` [dpdk-dev] [PATCH v3 1/4] net/mlx5: add preliminary support for rte_flow Nelio Laranjeiro
2016-12-21 15:19 ` [dpdk-dev] [PATCH v3 2/4] net/mlx5: add software " Nelio Laranjeiro
2016-12-23 12:19 ` Ferruh Yigit
2016-12-23 13:24 ` Adrien Mazarguil
2016-12-21 15:19 ` [dpdk-dev] [PATCH v3 3/4] net/mlx5: add rte_flow rule creation Nelio Laranjeiro
2016-12-23 12:21 ` Ferruh Yigit
2016-12-26 12:20 ` Nélio Laranjeiro
2016-12-21 15:19 ` [dpdk-dev] [PATCH v3 4/4] net/mlx5: add VLAN filter support in rte_flow Nelio Laranjeiro
2016-12-21 10:01 ` [dpdk-dev] [PATCH v2 1/4] net/mlx5: add preliminary support for rte_flow Nelio Laranjeiro
2016-12-21 10:01 ` [dpdk-dev] [PATCH v2 2/4] net/mlx5: add software " Nelio Laranjeiro
2016-12-21 10:01 ` [dpdk-dev] [PATCH v2 3/4] net/mlx5: add rte_flow rule creation Nelio Laranjeiro
2016-12-21 10:01 ` [dpdk-dev] [PATCH v2 4/4] net/mlx5: add VLAN filter support in rte_flow Nelio Laranjeiro
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