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From: Jerin Jacob <jerinjacobk@gmail.com>
To: Ori Kam <orika@nvidia.com>
Cc: Ajit Khaparde <ajit.khaparde@broadcom.com>,
	 Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>,
	Ferruh Yigit <ferruh.yigit@intel.com>,
	 NBU-Contact-Thomas Monjalon <thomas@monjalon.net>,
	dpdk-dev <dev@dpdk.org>, Jerin Jacob <jerinj@marvell.com>,
	 Olivier Matz <olivier.matz@6wind.com>,
	Slava Ovsiienko <viacheslavo@nvidia.com>
Subject: Re: [dpdk-dev] [PATCH] ethdev: add packet integrity checks
Date: Thu, 8 Apr 2021 13:14:11 +0530
Message-ID: <CALBAE1PySMiUmW1oB68Yx2nCXEpk2z=TXhJ2+Q=yBr9UTpUZKg@mail.gmail.com> (raw)
In-Reply-To: <DM6PR12MB49877C3441F9BEA6F1552FE7D6759@DM6PR12MB4987.namprd12.prod.outlook.com>

On Thu, Apr 8, 2021 at 3:45 AM Ori Kam <orika@nvidia.com> wrote:
>
> Hi Jerin,
>
> > -----Original Message-----
> > From: Jerin Jacob <jerinjacobk@gmail.com>
> > Subject: Re: [dpdk-dev] [PATCH] ethdev: add packet integrity checks
> >
> > On Wed, Apr 7, 2021 at 4:02 PM Ori Kam <orika@nvidia.com> wrote:
> > >
> > > Hi Jerin,
> >
> > Hi Ori,
> >
> >
> > >
> > > > -----Original Message-----
> > > > From: Jerin Jacob <jerinjacobk@gmail.com>
> > > > Sent: Tuesday, April 6, 2021 10:40 AM
> > > > To: Ori Kam <orika@nvidia.com>
> > > > Subject: Re: [dpdk-dev] [PATCH] ethdev: add packet integrity checks
> > > >
> > > > On Mon, Apr 5, 2021 at 11:35 PM Ori Kam <orika@nvidia.com> wrote:
> > > > >
> > > > > Currently, DPDK application can offload the checksum check,
> > > > > and report it in the mbuf.
> > > > >
> > > > > However, as more and more applications are offloading some or all
> > > > > logic and action to the HW, there is a need to check the packet
> > > > > integrity so the right decision can be taken.
> > > > >
> > > > > The application logic can be positive meaning if the packet is
> > > > > valid jump / do  actions, or negative if packet is not valid
> > > > > jump to SW / do actions (like drop)  a, and add default flow
> > > > > (match all in low priority) that will direct the miss packet
> > > > > to the miss path.
> > > > >
> > > > > Since currenlty rte_flow works in positive way the assumtion is
> > > > > that the postive way will be the common way in this case also.
> > > > >
> > > > > When thinking what is the best API to implement such feature,
> > > > > we need to considure the following (in no specific order):
> > > > > 1. API breakage.
> > > > > 2. Simplicity.
> > > > > 3. Performance.
> > > > > 4. HW capabilities.
> > > > > 5. rte_flow limitation.
> > > > > 6. Flexability.
> > > >
> > > >
> > > > Alteast in Marvell HW integrity checks are functions of the Ethdev Rx
> > > > queue attribute.
> > > > Not sure about other Vendor HW.
> > >
> > > I'm not sure what do you mean?
> >
> > What I meant is, What will be the preferred way to configure the feature?
> > ie. Is it as ethdev Rx offload or rte_flow?
> >
> > I think, in order to decide that, we need to know, how most of the
> > other HW express this feature?
> >
>
> As  I see it both ways could be used,
> Maybe even by the same app,
>
> One flow is to notify the application when it sees the packet
> (RX offload) and one is to use as an item to route the packet
> when using rte_flow.
>
> Maybe I'm missing something, on your suggestion how will
> application route the packets? Or it will just receive them with flags
> on the RX queue?

Just receive them with flags on the Rx queue, in order to avoid
duplicating features
in multiple places.

>
>
>
> >
> > > This is the idea of the patch, to allow application to route the packet
> > > before getting to the Rx,
> > > In any case all items support is dependent on HW capabilities.
> >
> >
> >
> >
>
> Best,
> Ori

  reply	other threads:[~2021-04-08  7:44 UTC|newest]

Thread overview: 68+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-05 18:04 Ori Kam
2021-04-06  7:39 ` Jerin Jacob
2021-04-07 10:32   ` Ori Kam
2021-04-07 11:01     ` Jerin Jacob
2021-04-07 22:15       ` Ori Kam
2021-04-08  7:44         ` Jerin Jacob [this message]
2021-04-11  4:12           ` Ajit Khaparde
2021-04-11  6:03             ` Ori Kam
2021-04-13 15:16     ` [dpdk-dev] [PATCH v3 0/2] " Gregory Etelson
2021-04-13 15:16       ` [dpdk-dev] [PATCH v3 1/2] ethdev: " Gregory Etelson
2021-04-13 15:16       ` [dpdk-dev] [PATCH v3 2/2] app/testpmd: add support for integrity item Gregory Etelson
2021-04-13 17:15         ` Ferruh Yigit
2021-04-14 12:56     ` [dpdk-dev] [PATCH v4 0/2] add packet integrity checks Gregory Etelson
2021-04-14 12:56       ` [dpdk-dev] [PATCH v4 1/2] ethdev: " Gregory Etelson
2021-04-14 13:27         ` Ferruh Yigit
2021-04-14 13:31           ` Ferruh Yigit
2021-04-14 12:57       ` [dpdk-dev] [PATCH v4 2/2] app/testpmd: add support for integrity item Gregory Etelson
2021-04-14 16:09     ` [dpdk-dev] [PATCH v5 0/2] add packet integrity checks Gregory Etelson
2021-04-14 16:09       ` [dpdk-dev] [PATCH v5 1/2] ethdev: " Gregory Etelson
2021-04-14 17:24         ` Ajit Khaparde
2021-04-15 15:10           ` Ori Kam
2021-04-15 15:25             ` Ajit Khaparde
2021-04-15 16:46         ` Thomas Monjalon
2021-04-16  7:43           ` Ori Kam
2021-04-18  8:15             ` Gregory Etelson
2021-04-18 18:00               ` Thomas Monjalon
2021-04-14 16:09       ` [dpdk-dev] [PATCH v5 2/2] app/testpmd: add support for integrity item Gregory Etelson
2021-04-14 16:26       ` [dpdk-dev] [PATCH v5 0/2] add packet integrity checks Ferruh Yigit
2021-04-18 15:51     ` [dpdk-dev] [PATCH v6 " Gregory Etelson
2021-04-18 15:51       ` [dpdk-dev] [PATCH v6 1/2] ethdev: " Gregory Etelson
2021-04-18 18:11         ` Thomas Monjalon
2021-04-18 19:24           ` Gregory Etelson
2021-04-18 21:30             ` Thomas Monjalon
2021-04-18 15:51       ` [dpdk-dev] [PATCH v6 2/2] app/testpmd: add support for integrity item Gregory Etelson
2021-04-19  8:29     ` [dpdk-dev] [PATCH v7 0/2] add packet integrity checks Gregory Etelson
2021-04-19  8:29       ` [dpdk-dev] [PATCH v7 1/2] ethdev: " Gregory Etelson
2021-04-19  8:47         ` Thomas Monjalon
2021-04-19  8:29       ` [dpdk-dev] [PATCH v7 2/2] app/testpmd: add support for integrity item Gregory Etelson
2021-04-19 11:20       ` [dpdk-dev] [PATCH v7 0/2] add packet integrity checks Ferruh Yigit
2021-04-19 12:08         ` Gregory Etelson
2021-04-19 12:44     ` [dpdk-dev] [PATCH v8 " Gregory Etelson
2021-04-19 12:44       ` [dpdk-dev] [PATCH v8 1/2] ethdev: " Gregory Etelson
2021-04-19 14:09         ` Ajit Khaparde
2021-04-19 16:34           ` Thomas Monjalon
2021-04-19 17:06             ` Ferruh Yigit
2021-04-19 12:44       ` [dpdk-dev] [PATCH v8 2/2] app/testpmd: add support for integrity item Gregory Etelson
2021-04-19 14:09         ` Ajit Khaparde
2021-04-08  8:04 ` [dpdk-dev] [PATCH] ethdev: add packet integrity checks Andrew Rybchenko
2021-04-08 11:39   ` Ori Kam
2021-04-09  8:08     ` Andrew Rybchenko
2021-04-11  6:42       ` Ori Kam
2021-04-11 17:30         ` Ori Kam
2021-04-11 17:34 ` [dpdk-dev] [PATCH v2 0/2] " Gregory Etelson
2021-04-11 17:34   ` [dpdk-dev] [PATCH v2 1/2] ethdev: " Gregory Etelson
2021-04-12 17:36     ` Ferruh Yigit
2021-04-12 19:26       ` Ori Kam
2021-04-12 23:31         ` Ferruh Yigit
2021-04-13  7:12           ` Ori Kam
2021-04-13  8:03             ` Ferruh Yigit
2021-04-13  8:18               ` Ori Kam
2021-04-13  8:30                 ` Ferruh Yigit
2021-04-13 10:21                   ` Ori Kam
2021-04-13 17:28                     ` Ferruh Yigit
2021-04-11 17:34   ` [dpdk-dev] [PATCH v2 2/2] app/testpmd: add support for integrity item Gregory Etelson
2021-04-12 17:49     ` Ferruh Yigit
2021-04-13  7:53       ` Ori Kam
2021-04-13  8:14         ` Ferruh Yigit
2021-04-13 11:36           ` Ori Kam

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