Well we've got a: NetXen Incorporated NX3031 Multifunction 1/10-Gigabit Server Adapter (rev 42)
It has 4 RSS queues, but only one seems to be working:
# cat /proc/interrupts | grep eth4
45: 1540180896 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth4[0]
46: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth4[1]
47: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth4[2]
48: 0 0 0 0 0 0 0 0 IR-PCI-MSI-edge eth4[3]
And what's with RPS?
# ls /sys/class/net/eth4/queues/
rx-0 tx-0
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 8
On-line CPU(s) list: 0-7
Thread(s) per core: 2
Core(s) per socket: 4
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 60
Model name: Intel(R) Xeon(R) CPU E3-1230 v3 @ 3.30GHz
Stepping: 3
CPU MHz: 3292.534
BogoMIPS: 6585.06
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 8192K
NUMA node0 CPU(s): 0-7# The following is the parsable format, which can be fed to other
# programs. Each different item in every column has an unique ID
# starting from zero.
# CPU,Core,Socket,Node,,L1d,L1i,L2,L3
0,0,0,0,,0,0,0,0
1,1,0,0,,1,1,1,0
2,2,0,0,,2,2,2,0
3,3,0,0,,3,3,3,0
4,0,0,0,,0,0,0,0
5,1,0,0,,1,1,1,0
6,2,0,0,,2,2,2,0
7,3,0,0,,3,3,3,0driver: netxen_nic
version: 4.0.82
firmware-version: 4.0.588
bus-info: 0000:01:00.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no
Ring parameters for eth4:
Pre-set maximums:
RX: 8192
RX Mini: 0
RX Jumbo: 1024
TX: 1024
Current hardware settings:
RX: 4096
RX Mini: 0
RX Jumbo: 1024
TX: 1024
Channel parameters for eth4:
Cannot get device channel parameters
: Operation not supportedeth4 just receiving traffic
rx-buffers-increase eth0Despite of having 4 RSS queues only 1 queue really works.
- CPU0 will do receive packets and write them into memory
- CPU1..CPU7 will do all the hardlifting and packet processing.
autorps eth4 -c 1 2 3 4 5 6 7