From: Ori Kam <orika@mellanox.com>
To: Andrew Rybchenko <arybchenko@solarflare.com>,
"Wei Hu (Xavier)" <xavier.huwei@huawei.com>,
"dev@dpdk.org" <dev@dpdk.org>
Cc: "huwei87@hisilicon.com" <huwei87@hisilicon.com>,
"fengchengwen@huawei.com" <fengchengwen@huawei.com>
Subject: Re: [dpdk-dev] [RFC PATCH] ethdev: add a new flow action of queue range
Date: Sun, 19 Jul 2020 13:32:42 +0000 [thread overview]
Message-ID: <AM6PR05MB5176F94D04963D071AAA6FCDDB7A0@AM6PR05MB5176.eurprd05.prod.outlook.com> (raw)
In-Reply-To: <996c7d92-6f87-d14a-f084-50372434e01a@solarflare.com>
> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Andrew Rybchenko
>
> On 7/17/20 12:32 PM, Wei Hu (Xavier) wrote:
> > From: Chengwen Feng <fengchengwen@huawei.com>
> >
> > This patch adds a new flow action of queue range, which was used to assign
> > packets to a continuous queue range.
> >
> > Current FD (flow director) provide a useful means to assign packets to
> > a target queue. But it has the following shortage: it can only route
> > to one queue, and there is an upper limit on one queue rxtx capacity,
> > which means the FD rule need more accurate else it may exceed the
> > queue capacity.
> >
> > With the support of queue range action, user can create FD rule with
> > action routed to a continuous queues, like:
> > FD rule 0 ------|-----> queue 0
> > |-----> queue 1
> >
> > FD rule 1 ------|-----> queue 8
> > |-----> queue 9
> > |-----> queue 10
> > |-----> queue 11
> > Note: hardware can use RSS to distribute traffic to the continuous queues
> > when packets match the above FD rule.
> >
> > With the support of queue range action, we can further provide QoS
> > service when DCB disabled.
> > eg: one NE (network element) is configured with two ip addresses, one for
> > control plane and the other for data plane, user can create two FD rules,
> > the first for directing control plane packets to queue 0, the second for
> > directing data plane packets to queue 1~15.
>
> I don't understand why it is not covered by RSS action.
>
+1
This should be covered in RSS action.
> >
> > Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
> > Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
>
> [snip]
Best,
Ori
next prev parent reply other threads:[~2020-07-19 13:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-17 9:32 Wei Hu (Xavier)
2020-07-19 12:30 ` Andrew Rybchenko
2020-07-19 13:32 ` Ori Kam [this message]
2020-07-19 13:34 ` Ori Kam
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