Re: [dpdk-users] Problem installing rules with counters on MLX5

[Cliff Burdick <shaklee3@gmail.com>]

Hi Raslan, I was seeing that error, but after filling in that field, it
would not classify in any queue other than zero. Since the rte_flow code in
the examples directory does not set the vlan fields properly for the mlx5
driver, it also gives the error:

http://doc.dpdk.org/api/examples_2flow_filtering_2flow_blocks_8c-example.html

My plan was to fix the problem, test it, and submit a patch for the
example. However, despite being able to get the error to go away with the
correct mask, I was never able to get the flow to direct into anything
other than queue 1 on dpdk 18.


On Sun, Oct 14, 2018, 00:43 Raslan Darawsheh <rasland@mellanox.com> wrote:

> Hi Cliff,
>
>
>
> Can you please send me what exactly you are seeing?
>
>
>
> As for the email that you are referring this is a limitation for MLX5 that
> it can’t have empty vlan you need to specify vid in order for it to work.
>
>
>
> Kindest regards,
>
> Raslan Darawsheh
>
>
>
> *From:* Cliff Burdick <shaklee3@gmail.com>
> *Sent:* Friday, October 12, 2018 7:11 PM
> *To:* Raslan Darawsheh <rasland@mellanox.com>
> *Cc:* katsikas.gp@gmail.com; users <users@dpdk.org>
> *Subject:* Re: [dpdk-users] Problem installing rules with counters on MLX5
>
>
>
> Hi Raslan, can you confirm if rte_flow is partially broken in dpdk 18 on
> mlx5? The example code for rte_flow is broken, and I didn't see any
> responses here:
>
>
>
> http://mails.dpdk.org/archives/users/2018-October/003510.html
> <https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmails.dpdk.org%2Farchives%2Fusers%2F2018-October%2F003510.html&data=02%7C01%7Crasland%40mellanox.com%7C7d5c46fdfef94e40dc3908d6305d5ba3%7Ca652971c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C636749574864475124&sdata=DW2cgNPFNdtZu2qE3ycAkFlbH3f4lHEitilV%2FOhwwnU%3D&reserved=0>
>
>
>
> On Thu, Oct 11, 2018 at 5:16 AM Raslan Darawsheh <rasland@mellanox.com>
> wrote:
>
> Hi Georgios,
>
> You are trying to create the same rule with three different actions.
> I would suggest that you change your mask to be proto is 1/6/17
> This way you'll have three different rules
>
> Kindest regards,
> Raslan Darawsheh
>
> > -----Original Message-----
> > From: users <users-bounces@dpdk.org> On Behalf Of Georgios Katsikas
> > Sent: Thursday, October 11, 2018 3:01 PM
> > To: users@dpdk.org
> > Subject: [dpdk-users] Problem installing rules with counters on MLX5
> >
> > Dear all,
> >
> > I am trying to install 3 simple rules (to match ICMP, TCP, and UDP
> flows) on a
> > Mellanox ConnectX-5 100 GbE NIC using DPDK's flow API.
> > The rules are as follows:
> >
> >    1. flow create 0 ingress pattern eth type is 2048 / ipv4 proto spec 1
> >    proto mask 0x0 / end actions queue index 0 / count / end
> >    2. flow create 0 ingress pattern eth type is 2048 / ipv4 proto spec 6
> >    proto mask 0x0 / end actions queue index 0 / count / end
> >    3. flow create 0 ingress pattern eth type is 2048 / ipv4 proto spec 17
> >    proto mask 0x0 / end actions queue index 0 / count / end
> >
> > Only the first rule gets properly installed. The remaining 2 rules throw
> the
> > following error:
> > Caught error type 1 (cause unspecified): hardware refuses to create flow
> >
> > If I try to incorporate 'count identifier <index> shared 0', I still get
> error (with
> > or without shared).
> > If I try to install the same rules without action count, then everything
> works
> > as expected.
> > Action count on rules that match src/dst IP addresses works fine.
> > Could you please shed some light on this?
> >
> > I am using DPDK 18.08 with Mellanox OFED 4.4-2.0.7.0 (latest).
> >
> > Thanks,
> > Georgios
>
>