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charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.29 Subject: Re: [dpdk-dev] net/mlx5: mellanox cx5/cx6-dx increment "rx_phy_discard_packets" with DPDK rte_flow actions COUNT & DROP X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Hi, Kang There are have some questions to clarify: - what Is packet packet rate (in packet-per-second)? * what Is packet size? * do you use the switchdev configuration (E-Switch)? * could you try create all flows in group 1 (and have the first flow in= group 0 forwarding all the traffic to group 1) ? With best regards, Slava From: Arthas Sent: Thursday, May 6, 2021 11:00 To: Gregory Etelson ; dev@dpdk.org Cc: Matan Azrad ; Ori Kam ; Raslan Dara= wsheh ; stable@dpdk.org; Slava Ovsiienko ; Shahaf Shuler Subject: [dpdk-dev] net/mlx5: mellanox cx5/cx6-dx increment "rx_phy_discard= _packets" with DPDK rte_flow actions COUNT & DROP Hareware: CX5/CX6 DX + Intel(R) Xeon(R) Platinum 9242 CPU @ 2.30GHz DPDK version: 19.11.8/20.11/21.05-rc1&2 testpmd with case: testpmd> flow create 0 ingress pattern eth / ipv4 / udp dst is 53 / end act= ions count / drop / end testpmd> flow create 0 ingress pattern eth / ipv4 / udp src is 53 / end act= ions count / drop / end testpmd> flow create 0 ingress pattern eth / ipv4 / tcp / end actions count= /drop end testpmd> flow list 0 ID Group Prio Attr Rule 0 0 0 i-- ETH IPV4 UDP =3D> = COUNT DROP 1 0 0 i-- ETH IPV4 UDP =3D> = COUNT DROP 2 0 0 i-- ETH IPV4 UDP =3D> = COUNT DROP or testpmd> flow create 0 ingress pattern eth / ipv4 / udp dst is 53 / end act= ions count / rss / end testpmd> flow create 0 ingress pattern eth / ipv4 / udp src is 53 / end act= ions count / rss / end testpmd> flow create 0 ingress pattern eth / ipv4 / udp / end actions count= / rss / end testpmd> flow list 0 ID Group Prio Attr Rule 0 0 0 i-- ETH IPV4 UDP =3D> = COUNT RSS 1 0 0 i-- ETH IPV4 UDP =3D> = COUNT RSS 2 0 0 i-- ETH IPV4 UDP =3D> = COUNT RSS testpmd> as soon as NIC create more than 1 flow , CX5/CX6-dx NIC will increment 'rx= _phy_discard_packets'. only 1 flow no problem! Is this a CX5/CX6-DX hardware issue? or Is it a DPDK mlx5 pmd bugs? Best Regards! KANG