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From: "Yan, Xiaoping (NSB - CN/Hangzhou)" <xiaoping.yan@nokia-sbell.com>
To: David Marchand <david.marchand@redhat.com>
Cc: Asaf Penso <asafp@nvidia.com>, "users@dpdk.org" <users@dpdk.org>,
	"Slava Ovsiienko" <viacheslavo@nvidia.com>,
	Matan Azrad <matan@nvidia.com>,
	"Raslan Darawsheh" <rasland@nvidia.com>
Subject: RE: mlx5 VF packet lost between rx_port_unicast_packets and rx_good_packets
Date: Wed, 27 Oct 2021 06:17:59 +0000
Message-ID: <8dcbb2d79a00490eb90811a80033b67b@nokia-sbell.com> (raw)
In-Reply-To: <CAJFAV8zNxVMPnkLsvn679GTkuh+YmPRxwZMuuALXxtBVCozZpA@mail.gmail.com>

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.marchand@redhat.com> 
Sent: 2021年10月18日 18:45
To: Yan, Xiaoping (NSB - CN/Hangzhou) <xiaoping.yan@nokia-sbell.com>
Cc: Asaf Penso <asafp@nvidia.com>; users@dpdk.org; Slava Ovsiienko <viacheslavo@nvidia.com>; Matan Azrad <matan@nvidia.com>; Raslan Darawsheh <rasland@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.yan@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


  reply	other threads:[~2021-10-27  6:18 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-05 10:07 [dpdk-users] " Yan, Xiaoping (NSB - CN/Hangzhou)
2021-07-13 12:35 ` Asaf Penso
2021-07-26  4:52   ` Yan, Xiaoping (NSB - CN/Hangzhou)
     [not found]     ` <DM8PR12MB54940E42337767B960E6BD28CDA69@DM8PR12MB5494.namprd12.prod.outlook.com>
     [not found]       ` <16515cb8ebbb4e7d833914040fa5943f@nokia-sbell.com>
     [not found]         ` <df15fbaac9a644fa93c55e1cfbc9226b@nokia-sbell.com>
     [not found]           ` <DM8PR12MB5494A1A84DA28E47CCB7496ECDA99@DM8PR12MB5494.namprd12.prod.outlook.com>
     [not found]             ` <22e029bf2ae6407e910cb2dcf11d49ce@nokia-sbell.com>
     [not found]               ` <e8e7cf781dd444fa9648facfc824d4c9@nokia-sbell.com>
     [not found]                 ` <4b0dd266b53541c7bc4964c29e24a0e6@nokia-sbell.com>
2021-09-30  8:05                   ` Yan, Xiaoping (NSB - CN/Hangzhou)
2021-10-14  6:55                     ` Asaf Penso
2021-10-14  9:33                       ` Yan, Xiaoping (NSB - CN/Hangzhou)
2021-10-14  9:50                         ` Asaf Penso
2021-10-14 10:15                           ` Yan, Xiaoping (NSB - CN/Hangzhou)
2021-10-14 11:48                             ` Asaf Penso
2021-10-18  9:28                               ` Yan, Xiaoping (NSB - CN/Hangzhou)
2021-10-18 10:45                                 ` David Marchand
2021-10-27  6:17                                   ` Yan, Xiaoping (NSB - CN/Hangzhou) [this message]
2021-10-27  7:26                                     ` David Marchand
2021-10-27  7:54                                     ` Martin Weiser
2021-10-28  1:39                                       ` Yan, Xiaoping (NSB - CN/Hangzhou)
2021-10-28  1:58                                         ` Gerry Wan
2021-10-29  0:44                                           ` Yan, Xiaoping (NSB - CN/Hangzhou)
2021-11-10 23:53 Francesco Montorsi
     [not found] ` <DM8PR12MB5494181EE59EA4018F71E57DCD949@DM8PR12MB5494.namprd12.prod.outlook.com>
2021-11-11 13:25   ` Francesco Montorsi

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