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

Raslan Darawsheh rasland at mellanox.com
Sun Oct 14 09:43:48 CEST 2018


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 at gmail.com>
Sent: Friday, October 12, 2018 7:11 PM
To: Raslan Darawsheh <rasland at mellanox.com>
Cc: katsikas.gp at gmail.com; users <users at 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 at mellanox.com<mailto:rasland at 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 at dpdk.org<mailto:users-bounces at dpdk.org>> On Behalf Of Georgios Katsikas
> Sent: Thursday, October 11, 2018 3:01 PM
> To: users at dpdk.org<mailto:users at 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


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