Run throughput test using iperf2 TCP on nrf7002 DK

[thp2023]

I am attempting to run a throughput test using TCP on the nrf7002 DK as the client and my laptop as the iperf2 server. I am using the sr_coex sample listed in sdk-nrf repo, and modified the following files: src/main.c and prj.conf. In prj.conf I modified the following parameters:

CONFIG_STA_KEY_MGMT_WPA2
CONFIG_STA_SAMPLE_SSID
CONFIG_STA_SAMPLE_PASSWORD
CONFIG_WIFI_ZPERF_PROT_UDP
CONFIG_NET_CONFIG_PEER_IPV4_ADDR

I set CONFIG_WIFI_ZPERF_PROT_UDP to y and the others with my Wifi credentials. I can confirm the Wifi credentials are correct since I was able to perform the throughput test with UDP with no errors.

In the src/main.c file: I changed the following

udp_callback to tcp_callback in line 63,

udp_upload_results_cb to tcp_upload_results_cb in line 303,

udp_callback to tcp_callback in line 332

zperf_udp_upload_async with zperf_tcp_upload_async in line 464

udp_callback to tcp_callback in line 480

After I saved my changes, I used the following commands to build/flash my nrf7002 DK board

west build --pristine  -s <path/to/app> -b nrf7002dk_nrf5340_cpuapp -- -DCONFIG_MPSL_CX=n -Dhci_rpmsg_CONFIG_MPSL_CX=n

west flash --dev-id <DEV_ID>  --hex-file build/zephyr/merged_domains.hex

Both build and flash was successful, I see the throughput test can run, but in the logs I get several messages that look like the following:

<wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x20052cc8 dropped

My question is if there's something else that I need to do to stop getting that error message in order to run a throughput test using TCP

[Marte Myrvold]

Hi,

I set CONFIG_WIFI_ZPERF_PROT_UDP to y

You must set CONFIG_WIFI_ZPERF_PROT_UDP=n to use TCP.

What command are you using to run iPerf? For TCP you must use the following:

iperf -s -i 1

Best regards,
Marte

[thp2023]

Thank you for replying. I miswrote the question. I did set CONFIG_WIFI_ZPERF_PROT_UDP to n. The command I used to run iperf I did the following:

iperf -s -i 1 -P 1

I added the -P flag since I only want iperf to run for one client and exit. When I ran the test and check the logs, I noticed the iperf test starts, but the logs display several of the same messages during the test run:

<wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x20052cc8 dropped

[Marte Myrvold]

Hi,

Since packet cloning fails, you are most likely running out of packet buffers. This means there is a buffer leak somewhere.

Can you enable Zephyr's network shell so you can observe the buffers?

In prj.conf set the following:

CONFIG_SHELL=y
CONFIG_NET_SHELL=y
CONFIG_NET_BUF_POOL_USAGE=y
CONFIG_NET_DEBUG_NET_PKT_ALLOC=y

Then you can use the commands net mem and net alloc to see information about network memory usage and allocations.

Can you share the full log from the device?

Best regards,
Marte

[thp2023]

Log from device during throughput test using TCP:

[00:00:00.284,729] <inf> wifi_nrf: qspi_init: QSPI freq = 24 MHz

[00:00:00.284,759] <inf> wifi_nrf: qspi_init: QSPI latency = 1

[00:00:00.292,266] <inf> wifi_nrf: zep_shim_pr_info: wifi_nrf_fmac_fw_load: LMAC patches loaded

[00:00:00.303,100] <inf> wifi_nrf: zep_shim_pr_info: wifi_nrf_fmac_fw_load: LMAC boot check passed

[00:00:00.306,060] <inf> wifi_nrf: zep_shim_pr_info: wifi_nrf_fmac_fw_load: UMAC patches loaded

[00:00:00.316,864] <inf> wifi_nrf: zep_shim_pr_info: wifi_nrf_fmac_fw_load: UMAC boot check passed

[00:00:00.338,745] <inf> wifi_nrf: zep_shim_pr_info: RPU LPM type: HW

*** Booting Zephyr OS build v3.2.99-ncs2 ***
[00:00:00.453,582] <wrn> net_zperf: zperf_shell_init: Unable to set IP
[00:00:00.453,613] <wrn> net_zperf: zperf_shell_init: Unable to set IP
[00:00:00.453,643] <inf> net_zperf: zperf_shell_init: Setting IP address 
[00:00:00.453,704] <inf> net_zperf: zperf_shell_init: Setting destination IP address x.x.x.x
[00:00:00.453,735] <inf> net_config: net_config_init_by_iface: Initializing network
[00:00:00.453,735] <inf> net_config: check_interface: Waiting interface 1 (0x20001ed0) to be up...
[00:00:00.453,765] <inf> net_config: setup_dhcpv4: Running dhcpv4 client...
[00:00:00.454,681] <inf> coex: main: Starting nrf7002dk_nrf5340_cpuapp with CPU frequency: 128 MHz
[00:00:00.454,803] <inf> wpa_supp: wpa_printf_impl: z_wpas_start: 385 Starting wpa_supplicant thread with debug level: 3

[00:00:00.454,925] <inf> wpa_supp: wpa_printf_impl: Successfully initialized wpa_supplicant
[00:00:01.454,772] <inf> coex: main: test_wlan = 1 and test_ble = 0

[00:00:01.454,772] <inf> wifi_nrf: nrf_wifi_config_sr_switch: GPIO P1.10 set to 0

[00:00:02.448,760] <inf> coex: wifi_connect: Connection requested
[00:00:02.448,760] <inf> coex: wait_for_next_event: Waiting for Wi-Fi Connection
[00:00:06.033,233] <inf> wpa_supp: wpa_printf_impl: wlan0: SME: Trying to authenticate with xxxx (SSID='' freq=2462 MHz)
[00:00:06.035,552] <inf> wifi_nrf: wifi_nrf_wpa_supp_authenticate: wifi_nrf_wpa_supp_authenticate:Authentication request sent successfully

[00:00:06.334,686] <inf> wpa_supp: wpa_printf_impl: wlan0: Trying to associate with xxxx (SSID='CBCI-AF98' freq=2462 MHz)
[00:00:06.340,515] <inf> wifi_nrf: wifi_nrf_wpa_supp_associate: wifi_nrf_wpa_supp_associate: Association request sent successfully

[00:00:06.363,586] <inf> wpa_supp: wpa_printf_impl: wlan0: Associated with xxxx
[00:00:06.363,647] <inf> wpa_supp: wpa_printf_impl: wlan0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0
[00:00:06.412,017] <inf> wpa_supp: wpa_printf_impl: wlan0: WPA: Key negotiation completed with 38:3f:b3:45:af:9c [PTK=CCMP GTK=CCMP]
[00:00:06.412,139] <inf> wpa_supp: wpa_printf_impl: wlan0: CTRL-EVENT-CONNECTED - Connection to 38:3f:b3:45:af:9c completed [id=0 id_str=]
[00:00:06.416,839] <inf> coex: handle_wifi_connect_result: Connected
[00:00:06.421,691] <inf> coex: cmd_wifi_status: Status: successful

[00:00:06.421,691] <inf> coex: cmd_wifi_status: ==================

[00:00:06.421,691] <inf> coex: cmd_wifi_status: State: GROUP_HANDSHAKE

[00:00:06.421,722] <inf> coex: cmd_wifi_status: Interface Mode: STATION

[00:00:06.421,722] <inf> coex: cmd_wifi_status: Link Mode: WIFI 4 (802.11n/HT)

[00:00:06.421,752] <inf> coex: cmd_wifi_status: SSID: xxxxx

[00:00:06.421,752] <inf> coex: cmd_wifi_status: BSSID: xxxxxx

[00:00:06.421,783] <inf> coex: cmd_wifi_status: Band: 2.4GHz

[00:00:06.421,783] <inf> coex: cmd_wifi_status: Channel: 11

[00:00:06.421,783] <inf> coex: cmd_wifi_status: Security: WPA2-PSK

[00:00:06.421,783] <inf> coex: cmd_wifi_status: MFP: Optional

[00:00:06.421,813] <inf> coex: cmd_wifi_status: RSSI: -49

[00:00:06.421,875] <inf> coex: wait_for_next_event: Got Wi-Fi Connection
[00:00:06.421,905] <inf> coex: wait_for_next_event: Waiting for Wi-Fi DHCP
[00:00:06.662,170] <inf> net_dhcpv4: dhcpv4_handle_msg_ack: Received: xxxx
[00:00:06.662,261] <inf> net_config: ipv4_addr_add_handler: IPv4 address: xxxx
[00:00:06.662,261] <inf> net_config: ipv4_addr_add_handler: Lease time: 172800 seconds
[00:00:06.662,261] <inf> net_config: ipv4_addr_add_handler: Subnet: 255.255.255.0
[00:00:06.662,292] <inf> net_config: ipv4_addr_add_handler: Router: xxxx
[00:00:06.662,811] <inf> coex: print_dhcp_ip: IP address: xxxx
[00:00:06.662,963] <inf> coex: wait_for_next_event: Got Wi-Fi DHCP
[00:00:06.662,994] <inf> coex: main:

[00:00:06.662,994] <inf> coex: main: Configuring non-PTA registers.

[00:00:06.663,452] <inf> coex: main: Configuring PTA registers for 2.4GHz

[00:00:06.664,489] <inf> coex: main: Starting Wi-Fi benchmark: Zperf client
[00:00:06.664,520] <inf> coex: parse_ipv4_addr: IPv4 address xxxx
[00:00:06.664,794] <inf> coex: tcp_upload_results_cb: New TCP session started
[00:00:06.768,066] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:06.983,551] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:07.121,520] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:07.235,443] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:07.376,708] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:07.498,443] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:07.638,427] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:07.765,838] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:07.907,745] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:08.025,665] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:08.177,734] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:08.308,074] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:08.435,363] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:08.572,204] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:08.725,585] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:08.836,456] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:08.977,630] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:09.117,004] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:09.251,861] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:09.373,626] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:09.528,228] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:09.648,040] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:09.784,454] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:09.917,572] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:10.074,096] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:10.216,308] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:10.348,144] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:10.472,961] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:10.833,312] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:10.955,474] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:11.082,122] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:11.234,497] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:11.434,600] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:11.871,215] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:12.010,162] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:12.208,892] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:12.358,673] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:12.672,576] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:12.877,410] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:12.983,917] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:13.109,436] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:13.248,352] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:13.397,430] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:13.515,502] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:13.825,866] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:14.003,967] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:14.215,606] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:14.336,486] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:14.464,996] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:14.618,560] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:14.748,046] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:14.885,406] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:15.011,474] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:15.161,193] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:15.299,896] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:15.442,413] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:15.566,741] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:15.707,336] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:15.838,104] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:15.974,395] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:16.118,927] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:16.242,950] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:16.423,828] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:16.537,902] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:16.678,009] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:16.812,225] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:16.937,683] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:17.078,887] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:17.180,999] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:17.491,485] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:17.633,422] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:17.799,346] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:17.919,403] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:18.056,213] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:18.191,741] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:18.316,772] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:18.453,887] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:18.590,454] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:18.714,965] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:18.919,586] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:19.144,805] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:19.283,782] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:19.425,781] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:19.557,586] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:19.686,553] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:19.816,284] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:19.954,711] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:20.100,341] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:20.288,726] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:20.422,851] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:20.562,042] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:20.701,629] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:20.850,036] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:20.976,165] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:21.111,724] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:21.305,664] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:21.683,929] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:21.790,588] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:22.060,363] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:22.451,385] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:22.573,547] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:22.713,714] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:22.857,574] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:22.984,100] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:23.134,582] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:23.409,759] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:23.553,955] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:23.705,566] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:23.903,472] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:24.025,024] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:24.169,494] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:24.295,715] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:24.409,545] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:24.560,729] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:24.691,040] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:25.027,587] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:25.144,042] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:25.270,263] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:25.399,749] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:25.523,559] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:25.663,208] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:25.796,508] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:25.930,084] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:26.057,952] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:26.603,485] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:26.753,295] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:26.867,309] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:27.283,203] <wrn> net_conn: conn_raw_socket: pkt cloning failed, pkt 0x200549d0 dropped
[00:00:27.284,393] <inf> coex: tcp_upload_results_cb: Wi-Fi benchmark: Upload completed!
[00:00:27.284,423] <inf> coex: tcp_upload_results_cb: Upload results:
[00:00:27.284,423] <inf> coex: tcp_upload_results_cb: 729088 bytes in 20300 ms
[00:00:27.284,423] <inf> coex: tcp_upload_results_cb: 712 packets sent
[00:00:27.284,423] <inf> coex: tcp_upload_results_cb: 2863311530 packets lost
[00:00:27.284,423] <inf> coex: tcp_upload_results_cb: 0 packets received
[00:00:27.284,454] <inf> coex: main: TCP SESSION FINISHED
[00:00:27.284,454] <inf> coex: main: Disconnecting Wi-Fi

[00:00:27.286,376] <inf> wpa_supp: wpa_printf_impl: wlan0: CTRL-EVENT-DISCONNECTED bssid=38:3f:b3:45:af:9c reason=3 locally_generated=1
[00:00:27.286,895] <inf> coex: handle_wifi_disconnect_result: Disconnection request done (0)
[00:00:27.299,652] <inf> wpa_supp: wpa_printf_impl: wlan0: CTRL-EVENT-DSCP-POLICY clear_all
[00:00:27.299,713] <inf> coex: cmd_wifi_status: Status: successful

[00:00:27.299,713] <inf> coex: cmd_wifi_status: ==================

[00:00:27.299,743] <inf> coex: cmd_wifi_status: State: DISCONNECTED

[00:00:27.299,835] <inf> coex: wifi_disconnect: Disconnect requested
[00:00:27.299,865] <inf> coex: main:
Coexistence test complete

[Marte Myrvold]

Hi,

You need to increase the TX and RX buffers.

CONFIG_NET_PKT_RX_COUNT=32
CONFIG_NET_PKT_TX_COUNT=32
CONFIG_NET_BUF_RX_COUNT=32
CONFIG_NET_BUF_TX_COUNT=64

This should solve the packet dropped issue.

Best regards,
Marte

[thp2023]

Hello,

I increased with TX and RX buffers like you suggested, I now get an packet allocation failed error.

Here is the logs: 

[00:00:00.284,759] <inf> wifi_nrf: qspi_init: QSPI freq = 24 MHz

[00:00:00.284,790] <inf> wifi_nrf: qspi_init: QSPI latency = 1

[00:00:00.292,297] <inf> wifi_nrf: zep_shim_pr_info: wifi_nrf_fmac_fw_load: LMAC patches loaded

[00:00:00.303,161] <inf> wifi_nrf: zep_shim_pr_info: wifi_nrf_fmac_fw_load: LMAC boot check passed

[00:00:00.306,121] <inf> wifi_nrf: zep_shim_pr_info: wifi_nrf_fmac_fw_load: UMAC patches loaded

[00:00:00.316,925] <inf> wifi_nrf: zep_shim_pr_info: wifi_nrf_fmac_fw_load: UMAC boot check passed

[00:00:00.338,928] <inf> wifi_nrf: zep_shim_pr_info: RPU LPM type: HW

*** Booting Zephyr OS build v3.2.99-ncs2 ***
[00:00:00.453,674] <inf> net_config: net_config_init_by_iface: Initializing network
[00:00:00.453,674] <inf> net_config: check_interface: Waiting interface 1 (0x20001bc0) to be up...
[00:00:00.453,704] <inf> net_config: setup_dhcpv4: Running dhcpv4 client...
[00:00:00.454,620] <inf> coex: main: Starting nrf7002dk_nrf5340_cpuapp with CPU frequency: 128 MHz
[00:00:00.454,711] <inf> wpa_supp: wpa_printf_impl: z_wpas_start: 385 Starting wpa_supplicant thread with debug level: 3

[00:00:00.454,833] <inf> wpa_supp: wpa_printf_impl: Successfully initialized wpa_supplicant
[00:00:01.454,681] <inf> coex: main: test_wlan = 1 and test_ble = 0

[00:00:01.454,681] <inf> wifi_nrf: nrf_wifi_config_sr_switch: GPIO P1.10 set to 0

[00:00:02.448,730] <inf> coex: wifi_connect: Connection requested
[00:00:02.448,760] <inf> coex: wait_for_next_event: Waiting for Wi-Fi Connection
[00:00:06.032,531] <inf> wpa_supp: wpa_printf_impl: wlan0: SME: Trying to authenticate with 38:3f:b3:45:af:9c (SSID='xxxx' freq=2462 MHz)
[00:00:06.034,759] <inf> wifi_nrf: wifi_nrf_wpa_supp_authenticate: wifi_nrf_wpa_supp_authenticate:Authentication request sent successfully

[00:00:06.284,454] <inf> wpa_supp: wpa_printf_impl: wlan0: Trying to associate with 38:3f:b3:45:af:9c (SSID='xxxx' freq=2462 MHz)
[00:00:06.289,703] <inf> wifi_nrf: wifi_nrf_wpa_supp_associate: wifi_nrf_wpa_supp_associate: Association request sent successfully

[00:00:06.302,947] <inf> wpa_supp: wpa_printf_impl: wlan0: Associated with xxxx
[00:00:06.303,039] <inf> wpa_supp: wpa_printf_impl: wlan0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0
[00:00:06.331,939] <inf> wpa_supp: wpa_printf_impl: wlan0: WPA: Key negotiation completed with xxxx [PTK=CCMP GTK=CCMP]
[00:00:06.332,061] <inf> wpa_supp: wpa_printf_impl: wlan0: CTRL-EVENT-CONNECTED - Connection to xxxx completed [id=0 id_str=]
[00:00:06.336,822] <inf> coex: handle_wifi_connect_result: Connected
[00:00:06.341,796] <inf> coex: cmd_wifi_status: Status: successful

[00:00:06.341,827] <inf> coex: cmd_wifi_status: ==================

[00:00:06.341,827] <inf> coex: cmd_wifi_status: State: GROUP_HANDSHAKE

[00:00:06.341,827] <inf> coex: cmd_wifi_status: Interface Mode: STATION

[00:00:06.341,857] <inf> coex: cmd_wifi_status: Link Mode: WIFI 4 (802.11n/HT)

[00:00:06.341,857] <inf> coex: cmd_wifi_status: SSID: xxxx                    

[00:00:06.341,888] <inf> coex: cmd_wifi_status: BSSID: xxxx

[00:00:06.341,888] <inf> coex: cmd_wifi_status: Band: 2.4GHz

[00:00:06.341,888] <inf> coex: cmd_wifi_status: Channel: 11

[00:00:06.341,918] <inf> coex: cmd_wifi_status: Security: WPA2-PSK

[00:00:06.341,918] <inf> coex: cmd_wifi_status: MFP: Optional

[00:00:06.341,918] <inf> coex: cmd_wifi_status: RSSI: -46

[00:00:06.342,071] <inf> coex: wait_for_next_event: Got Wi-Fi Connection
[00:00:06.342,102] <inf> coex: wait_for_next_event: Waiting for Wi-Fi DHCP
[00:00:06.523,712] <inf> net_dhcpv4: dhcpv4_handle_msg_ack: Received: xxxx
[00:00:06.523,803] <inf> net_config: ipv4_addr_add_handler: IPv4 address: xxxx
[00:00:06.523,834] <inf> net_config: ipv4_addr_add_handler: Lease time: 172800 seconds
[00:00:06.523,834] <inf> net_config: ipv4_addr_add_handler: Subnet: 255.255.255.0
[00:00:06.523,864] <inf> net_config: ipv4_addr_add_handler: Router: xxxx
[00:00:06.525,665] <inf> coex: print_dhcp_ip: IP address: xxxx
[00:00:06.525,695] <inf> coex: wait_for_next_event: Got Wi-Fi DHCP
[00:00:06.525,726] <inf> coex: main: 

[00:00:06.525,726] <inf> coex: main: Configuring non-PTA registers.

[00:00:06.526,702] <inf> coex: main: Configuring PTA registers for 2.4GHz

[00:00:06.527,221] <inf> coex: main: Starting Wi-Fi benchmark: Zperf client
[00:00:06.527,252] <inf> coex: parse_ipv4_addr: IPv4 address xxxx
[00:00:06.637,237] <inf> coex: tcp_upload_results_cb: New TCP session started
[00:00:07.660,705] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (1500) allocation failed.
[00:00:07.660,705] <err> net_tcp: tcp_send_data: conn: 0x200659fc packet allocation failed, len=1460
[00:00:08.548,461] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (1500) allocation failed.
[00:00:08.548,461] <err> net_tcp: tcp_send_data: conn: 0x200659fc packet allocation failed, len=1460
[00:00:09.467,102] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (68) allocation failed.
[00:00:10.496,093] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (1500) allocation failed.
[00:00:10.496,093] <err> net_tcp: tcp_send_data: conn: 0x200659fc packet allocation failed, len=1460
[00:00:12.463,958] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (1500) allocation failed.
[00:00:12.463,958] <err> net_tcp: tcp_send_data: conn: 0x200659fc packet allocation failed, len=1460
[00:00:13.101,409] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (68) allocation failed.
[00:00:14.954,650] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (1500) allocation failed.
[00:00:14.954,650] <err> net_tcp: tcp_send_data: conn: 0x200659fc packet allocation failed, len=1460
[00:00:15.740,386] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (68) allocation failed.
[00:00:16.209,930] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (1500) allocation failed.
[00:00:16.209,930] <err> net_tcp: tcp_send_data: conn: 0x200659fc packet allocation failed, len=1460
[00:00:16.766,418] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (68) allocation failed.
[00:00:17.320,922] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (1500) allocation failed.
[00:00:17.320,922] <err> net_tcp: tcp_send_data: conn: 0x200659fc packet allocation failed, len=1460
[00:00:18.501,525] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (68) allocation failed.
[00:00:19.118,072] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (1500) allocation failed.
[00:00:19.118,072] <err> net_tcp: tcp_send_data: conn: 0x200659fc packet allocation failed, len=1460
[00:00:19.587,280] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (68) allocation failed.
[00:00:20.370,819] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (1500) allocation failed.
[00:00:20.370,819] <err> net_tcp: tcp_send_data: conn: 0x200659fc packet allocation failed, len=1460
[00:00:21.165,863] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (1500) allocation failed.
[00:00:21.165,863] <err> net_tcp: tcp_send_data: conn: 0x200659fc packet allocation failed, len=1460
[00:00:21.754,547] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (68) allocation failed.
[00:00:22.341,979] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (68) allocation failed.
[00:00:23.382,904] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (68) allocation failed.
[00:00:24.339,843] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (1500) allocation failed.
[00:00:24.339,843] <err> net_tcp: tcp_send_data: conn: 0x200659fc packet allocation failed, len=1460
[00:00:24.886,077] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (68) allocation failed.
[00:00:25.564,849] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (68) allocation failed.
[00:00:26.372,100] <err> net_pkt: net_pkt_alloc_buffer: Data buffer (68) allocation failed.
[00:00:26.735,626] <inf> coex: tcp_upload_results_cb: Wi-Fi benchmark: Upload completed!
[00:00:26.735,626] <inf> coex: tcp_upload_results_cb: Upload results:
[00:00:26.735,626] <inf> coex: tcp_upload_results_cb: 4655104 bytes in 20000 ms
[00:00:26.735,626] <inf> coex: tcp_upload_results_cb: 4546 packets sent
[00:00:26.735,626] <inf> coex: tcp_upload_results_cb: 2863311530 packets lost
[00:00:26.735,656] <inf> coex: tcp_upload_results_cb: 0 packets received
[00:00:26.735,656] <inf> coex: main: TCP SESSION FINISHED
[00:00:26.735,656] <inf> coex: main: Disconnecting Wi-Fi

[00:00:26.736,389] <inf> wpa_supp: wpa_printf_impl: wlan0: CTRL-EVENT-DISCONNECTED bssid=38:3f:b3:45:af:9c reason=3 locally_generated=1
[00:00:26.736,419] <inf> coex: handle_wifi_disconnect_result: Disconnection request done (0)
[00:00:26.747,528] <inf> wpa_supp: wpa_printf_impl: wlan0: CTRL-EVENT-DSCP-POLICY clear_all
[00:00:26.747,619] <inf> coex: cmd_wifi_status: Status: successful

[00:00:26.747,619] <inf> coex: cmd_wifi_status: ==================

[00:00:26.747,619] <inf> coex: cmd_wifi_status: State: DISCONNECTED

[00:00:26.747,894] <inf> coex: wifi_disconnect: Disconnect requested
[00:00:26.747,894] <inf> coex: main: 
                                     Coexistence test complete

Here is my prj.conf file

#
# Copyright (c) 2022 Nordic Semiconductor ASA
#
# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
#

CONFIG_WIFI=y
CONFIG_WIFI_NRF700X=y

# Test mode
CONFIG_TEST_TYPE_WLAN_ONLY=y

# WPA supplicant
CONFIG_WPA_SUPP=y

# System settings
CONFIG_NEWLIB_LIBC=y
CONFIG_NEWLIB_LIBC_NANO=n

# Networking
CONFIG_NETWORKING=y
CONFIG_NET_SOCKETS=y
CONFIG_POSIX_API=y
CONFIG_NET_LOG=y
CONFIG_NET_IPV4=y
CONFIG_NET_UDP=y
CONFIG_NET_TCP=y
CONFIG_NET_DHCPV4=y

CONFIG_NET_IF_UNICAST_IPV4_ADDR_COUNT=2
CONFIG_NET_MAX_CONTEXTS=8
CONFIG_NET_CONTEXT_SYNC_RECV=y

CONFIG_INIT_STACKS=y

CONFIG_NET_L2_ETHERNET=y

CONFIG_NET_CONFIG_SETTINGS=y

CONFIG_NET_SOCKETS_POLL_MAX=4

# Memories
CONFIG_MAIN_STACK_SIZE=4096
CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048
CONFIG_NET_TX_STACK_SIZE=4096
CONFIG_NET_RX_STACK_SIZE=4096

# Debugging
CONFIG_STACK_SENTINEL=y
CONFIG_DEBUG_COREDUMP=y
CONFIG_DEBUG_COREDUMP_BACKEND_LOGGING=y
CONFIG_DEBUG_COREDUMP_MEMORY_DUMP_MIN=y

# Kernel options
CONFIG_ENTROPY_GENERATOR=y

# Logging
CONFIG_LOG=y
CONFIG_PRINTK=y
CONFIG_POSIX_CLOCK=y

# Benchmarking
CONFIG_NET_ZPERF=y

# Optimized networking settings for performance
CONFIG_NET_TC_TX_COUNT=1
CONFIG_NET_PKT_RX_COUNT=32
CONFIG_NET_PKT_TX_COUNT=32
CONFIG_NET_BUF_RX_COUNT=32
CONFIG_NET_BUF_TX_COUNT=64
CONFIG_HEAP_MEM_POOL_SIZE=200000
CONFIG_NET_BUF_DATA_SIZE=1100

# Below configs need to be modified based on security
# CONFIG_STA_KEY_MGMT_NONE=y
CONFIG_STA_KEY_MGMT_WPA2=y
# CONFIG_STA_KEY_MGMT_WPA2_256=y
# CONFIG_STA_KEY_MGMT_WPA3=y
CONFIG_STA_SAMPLE_SSID=""
CONFIG_STA_SAMPLE_PASSWORD=""
CONFIG_NET_CONFIG_PEER_IPV4_ADDR=""
CONFIG_NET_CONFIG_MY_IPV4_NETMASK="255.255.255.0"

# DUT zperf configuration
CONFIG_WIFI_ZPERF_PROT_UDP=n
CONFIG_WIFI_ZPERF_PKT_SIZE=1024
CONFIG_WIFI_ZPERF_RATE=10000
CONFIG_WIFI_ZPERF_SERVER=n

CONFIG_BT_DEVICE_NAME="Nordic_Throughput"
CONFIG_BT=y
CONFIG_BT_DEBUG_LOG=y
CONFIG_BT_SMP=y
CONFIG_BT_PERIPHERAL=y
CONFIG_BT_CENTRAL=y
CONFIG_BT_MAX_CONN=2

CONFIG_BT_SCAN=y
CONFIG_BT_SCAN_FILTER_ENABLE=y
CONFIG_BT_SCAN_UUID_CNT=1

CONFIG_BT_GATT_CLIENT=y
CONFIG_BT_GATT_DM=y
CONFIG_BT_THROUGHPUT=y

CONFIG_BT_USER_DATA_LEN_UPDATE=y
CONFIG_BT_USER_PHY_UPDATE=y
CONFIG_BT_GAP_AUTO_UPDATE_CONN_PARAMS=n

CONFIG_BT_BUF_ACL_RX_SIZE=502
CONFIG_BT_ATT_PREPARE_COUNT=2
CONFIG_BT_CONN_TX_MAX=10
CONFIG_BT_L2CAP_TX_BUF_COUNT=10
CONFIG_BT_L2CAP_TX_MTU=498
CONFIG_BT_BUF_ACL_TX_SIZE=502
CONFIG_BT_L2CAP_DYNAMIC_CHANNEL=y

CONFIG_DK_LIBRARY=y
CONFIG_DK_LIBRARY_DYNAMIC_BUTTON_HANDLERS=y
CONFIG_NRF700X_MAX_TX_PENDING_QLEN=8

[Marte Myrvold]

Hi,

It seems like the program is trying to allocate a packet that is too large.

packet allocation failed, len=1460

Increasing CONFIG_WIFI_ZPERF_PKT_SIZE should fix this, for example:

CONFIG_WIFI_ZPERF_PKT_SIZE=1500

Best regards,
Marte

[thp2023]

When I increased the packet size, i got the following warning message 

<wrn> net_zperf: tcp_upload: Packet size too large! max size: 1024

I did somehow get the throughput test to execute with no errors by modifying the iperf command to

iperf -s -i 1 --len 1024 -w 24k -t 20

Is it possible to change the prj.conf where I don't have to change the iperf server command?