Transmit error when using Intel nic / ixgbe driver

[TyGrze]

Reopening Atoonik's Issue from old Repo

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Transmit error when using Intel nic / ixgbe driver
#31
atoonk opened this issue Feb 18, 2024 · 7 comments
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@atoonk
atoonk commented Feb 18, 2024 •

This library works great on, for example, virtio_net drivers or even loopback. But when trying it on a bare-metal server with an ixgbe nic, I get this transmit error

root@guest:~/xdp/examples/sendudp# go run sendudp.go  -interface enp1s0f0
sending UDP packets from 192.168.111.10 (b2:96:81:75:b2:11) to 192.168.111.1 (ff:ff:ff:ff:ff:ff)...
panic: sendto failed with rc=18446744073709551615 and errno=22

goroutine 1 [running]:
github.com/asavie/xdp.(*Socket).Transmit(0xc000162000, {0xc00010a800?, 0x5fa3a9?, 0x2f?})
	/root/xdp/xdp.go:485 +0x205
main.main()
	/root/xdp/examples/sendudp/sendudp.go:134 +0xb47
exit status 2

the same example on the loopback interface on the same server works fine

root@guest:~/xdp/examples/sendudp# go run sendudp.go  -interface lo
sending UDP packets from 192.168.111.10 (b2:96:81:75:b2:11) to 192.168.111.1 (ff:ff:ff:ff:ff:ff)...
859712 packets/s (9917 Mb/s)
862208 packets/s (9946 Mb/s)

Any idea how to resolve this or what the root cause is? Below my nic info.

root@guest:~/xdp/examples/sendudp# ethtool -i enp1s0f0
driver: ixgbe
version: 6.5.0-15-generic
firmware-version: 0x800006da, 1.2527.0
expansion-rom-version:
bus-info: 0000:01:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes

root@guest:~/xdp/examples/sendudp# ethtool -l enp1s0f0
Channel parameters for enp1s0f0:
Pre-set maximums:
RX:		n/a
TX:		n/a
Other:		1
Combined:	12
Current hardware settings:
RX:		n/a
TX:		n/a
Other:		1
Combined:	12

root@guest:~/xdp/examples/sendudp# lspci  | grep Ethernet
01:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection (rev 01)
01:00.1 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection (rev 01)