Hi,
I tried with dpdk 20.11-3 downloaded from
https://fast.dpdk.org/rel/dpdk-20.11.3.tar.xz
Problem still exist:
1. there is packet loss with 2mpps (small packet),
2. no counter for the dropped packet in NIC.
traffic generator stats: sends 41990938, receives back 41986105, lost 4833
testpmd fwd stats: RX-packets: 41986110, TX-packets: 41986110
port xstats: rx_unicast_packets: 41990938 (all packets reached to the NIC
port), rx_good_packets: 41986111 (some is lost), but there is not any counter
of the lost packet.
Here is the log:
[root@up-0 /]# dpdk-testpmd -l "2,3" --legacy-mem --socket-mem "5000,0" -a
0000:03:06.7 -- -i --nb-cores=1 --portmask=0x1 --rxd=512 --txd=512
EAL: Detected 28 lcore(s)
EAL: Detected 2 NUMA nodes
EAL: Detected static linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'VA'
EAL: No available hugepages reported in hugepages-2048kB
EAL: Probing VFIO support...
EAL: Probe PCI driver: mlx5_pci (15b3:1018) device: 0000:03:06.7 (socket 0)
mlx5_pci: cannot bind mlx5 socket: Read-only file system
mlx5_pci: Cannot initialize socket: Read-only file system
EAL: No legacy callbacks, legacy socket not created
Interactive-mode selected
testpmd: create a new mbuf pool <mb_pool_0>: n=155456, size=2176, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Warning! port-topology=paired and odd forward ports number, the last port will
pair with itself.
Configuring Port 0 (socket 0)
Port 0: 7A:9A:8A:A6:86:93
Checking link statuses...
Done
testpmd> port stop 0
Stopping ports...
Checking link statuses...
Done
testpmd> vlan set filter on 0
testpmd> rx_vlan add 767 0
testpmd> port start 0
Port 0: 7A:9A:8A:A6:86:93
Checking link statuses...
Done
testpmd> set fwd 5tswap
Set 5tswap packet forwarding mode
testpmd> start
5tswap packet forwarding - ports=1 - cores=1 - streams=1 - NUMA support
enabled, MP allocation mode: native
Logical Core 3 (socket 0) forwards packets on 1 streams:
RX P=0/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00
5tswap packet forwarding packets/burst=32
nb forwarding cores=1 - nb forwarding ports=1
port 0: RX queue number: 1 Tx queue number: 1
Rx offloads=0x200 Tx offloads=0x0
RX queue: 0
RX desc=512 - RX free threshold=64
RX threshold registers: pthresh=0 hthresh=0 wthresh=0
RX Offloads=0x200
TX queue: 0
TX desc=512 - TX free threshold=0
TX threshold registers: pthresh=0 hthresh=0 wthresh=0
TX offloads=0x0 - TX RS bit threshold=0
testpmd> show fwd stats all
---------------------- Forward statistics for port 0 ----------------------
RX-packets: 41986110 RX-dropped: 0 RX-total: 41986110
TX-packets: 41986110 TX-dropped: 0 TX-total: 41986110
----------------------------------------------------------------------------
testpmd> show port xstats 0
###### NIC extended statistics for port 0
rx_good_packets: 41986111
tx_good_packets: 41986111
rx_good_bytes: 3106973594
tx_good_bytes: 3106973594
rx_missed_errors: 0
rx_errors: 0
tx_errors: 0
rx_mbuf_allocation_errors: 0
rx_q0_packets: 41986111
rx_q0_bytes: 3106973594
rx_q0_errors: 0
tx_q0_packets: 41986111
tx_q0_bytes: 3106973594
rx_wqe_errors: 0
rx_unicast_packets: 41990938
rx_unicast_bytes: 3107329412
tx_unicast_packets: 41986111
tx_unicast_bytes: 3106973594
rx_multicast_packets: 1
rx_multicast_bytes: 114
tx_multicast_packets: 0
tx_multicast_bytes: 0
rx_broadcast_packets: 5
rx_broadcast_bytes: 1710
tx_broadcast_packets: 0
tx_broadcast_bytes: 0
tx_phy_packets: 0
rx_phy_packets: 0
rx_phy_crc_errors: 0
tx_phy_bytes: 0
rx_phy_bytes: 0
rx_phy_in_range_len_errors: 0
rx_phy_symbol_errors: 0
rx_phy_discard_packets: 0
tx_phy_discard_packets: 0
tx_phy_errors: 0
rx_out_of_buffer: 0
tx_pp_missed_interrupt_errors: 0
tx_pp_rearm_queue_errors: 0
tx_pp_clock_queue_errors: 0
tx_pp_timestamp_past_errors: 0
tx_pp_timestamp_future_errors: 0
tx_pp_jitter: 0
tx_pp_wander: 0
tx_pp_sync_lost: 0
testpmd> q
Command not found
testpmd> exit
Command not found
testpmd> quit
Telling cores to stop...
Waiting for lcores to finish...
---------------------- Forward statistics for port 0 ----------------------
RX-packets: 41986112 RX-dropped: 0 RX-total: 41986112
TX-packets: 41986112 TX-dropped: 0 TX-total: 41986112
----------------------------------------------------------------------------
Best regards
Yan Xiaoping
-----Original Message-----
From: David Marchand <david.march...@redhat.com>
Sent: 2021年10月18日 18:45
To: Yan, Xiaoping (NSB - CN/Hangzhou) <xiaoping....@nokia-sbell.com>
Cc: Asaf Penso <as...@nvidia.com>; users@dpdk.org; Slava Ovsiienko
<viachesl...@nvidia.com>; Matan Azrad <ma...@nvidia.com>; Raslan Darawsheh
<rasl...@nvidia.com>
Subject: Re: mlx5 VF packet lost between rx_port_unicast_packets and
rx_good_packets
On Mon, Oct 18, 2021 at 11:28 AM Yan, Xiaoping (NSB - CN/Hangzhou)
<xiaoping....@nokia-sbell.com> wrote:
> I have cloned dpdk code from github
>
> [xiaopiya@fedora30 dpdk]$ git remote -v origin
> https://github.com/DPDK/dpdk.git (fetch) origin
> https://github.com/DPDK/dpdk.git (push)
>
> which tag should I use?
>
> Or do I have to download 20.11.3 from git.dpdk.org?
>
> Sorry, I don’t know the relation between https://github.com/DPDK and
> git.dpdk.org?
Github DPDK/dpdk repo is a replication of the main repo hosted on dpdk.org
servers.
The official git repos and releases tarballs are on dpdk.org servers.
The list of official releases tarballs is at: http://core.dpdk.org/download/
The main repo git is at: https://git.dpdk.org/dpdk/ The LTS/stable releases
repo git is at: https://git.dpdk.org/dpdk-stable/
--
David Marchand
