[Oisf-users] (no subject)

Travel Factory S.r.l. mc8647 at mclink.it
Thu Mar 27 14:18:58 UTC 2014

> Did you run the cpu affinity script for the NIC driver?

Yes, the interrupts for the lan card shows a diagonal

> What is the output of - modinfo ixgbe ?

paste below

> Is irqbalance off ?

I disabled it but at reboot I found it running. killed manually.

> How many threads are you starting in AF_PACKET?


> Is all offloading disabled on the NIC?

Everything I could disable, I disabled !
# ethtool -k eth7
Features for eth7:
rx-checksumming: off
tx-checksumming: off
         tx-checksum-ipv4: off
         tx-checksum-ip-generic: off [fixed]
         tx-checksum-ipv6: off
         tx-checksum-fcoe-crc: on [fixed]
         tx-checksum-sctp: off
scatter-gather: off
         tx-scatter-gather: off
         tx-scatter-gather-fraglist: off [fixed]
tcp-segmentation-offload: off
         tx-tcp-segmentation: off
         tx-tcp-ecn-segmentation: off [fixed]
         tx-tcp6-segmentation: off
udp-fragmentation-offload: off [fixed]
generic-segmentation-offload: off
generic-receive-offload: off
large-receive-offload: off
rx-vlan-offload: off
tx-vlan-offload: off
ntuple-filters: off
receive-hashing: on
highdma: on [fixed]
rx-vlan-filter: on [fixed]
vlan-challenged: off [fixed]
tx-lockless: off [fixed]
netns-local: off [fixed]
tx-gso-robust: off [fixed]
tx-fcoe-segmentation: on [fixed]
tx-gre-segmentation: off [fixed]
tx-ipip-segmentation: off [fixed]
tx-sit-segmentation: off [fixed]
tx-udp_tnl-segmentation: off [fixed]
tx-mpls-segmentation: off [fixed]
fcoe-mtu: off [fixed]
tx-nocache-copy: on
loopback: off [fixed]
rx-fcs: off [fixed]
rx-all: off [fixed]
tx-vlan-stag-hw-insert: off [fixed]
rx-vlan-stag-hw-parse: off [fixed]
rx-vlan-stag-filter: off [fixed]
l2-fwd-offload: off [fixed]

This is the script I use to setup the lan card:
ifconfig eth7 down
rmmod ixgbe
modprobe ixgbe FdirPballoc=3
ifconfig eth7 up
# ifconfig eth7 mtu 9000
ethtool -L eth7 combined 63
ethtool -N eth7 rx-flow-hash udp4 sdfn
ethtool -G eth7 rx 4096

ethtool -K eth7 tso off
ethtool -K eth7 gro off
ethtool -K eth7 lro off
ethtool -K eth7 gso off
ethtool -K eth7 rx off
ethtool -K eth7 tx off
ethtool -K eth7 sg off
ethtool -K eth7 rxvlan off
ethtool -K eth7 txvlan off
ethtool -K eth7 rx-vlan-filter off

ethtool -N eth7 rx-flow-hash udp4 sdfn
ethtool -N eth7 rx-flow-hash udp6 sdfn
ethtool -n eth7 rx-flow-hash udp6
ethtool -n eth7 rx-flow-hash udp4
ethtool -C eth7 rx-usecs 1000
ethtool -C eth7 adaptive-rx off

Someone also suggested to set InterruptThrottleRate, I didn't try yet.

# modinfo ixgbe
version:        3.18.7
license:        GPL
description:    Intel(R) 10 Gigabit PCI Express Network Driver
author:         Intel Corporation, <linux.nics at intel.com>
srcversion:     B03433222E04D753B357EFB
alias:          pci:v00008086d00001560sv*sd*bc*sc*i*
alias:          pci:v00008086d00001558sv*sd*bc*sc*i*
alias:          pci:v00008086d0000154Asv*sd*bc*sc*i*
alias:          pci:v00008086d00001557sv*sd*bc*sc*i*
alias:          pci:v00008086d0000154Fsv*sd*bc*sc*i*
alias:          pci:v00008086d0000154Dsv*sd*bc*sc*i*
alias:          pci:v00008086d00001528sv*sd*bc*sc*i*
alias:          pci:v00008086d000010F8sv*sd*bc*sc*i*
alias:          pci:v00008086d0000151Csv*sd*bc*sc*i*
alias:          pci:v00008086d00001529sv*sd*bc*sc*i*
alias:          pci:v00008086d0000152Asv*sd*bc*sc*i*
alias:          pci:v00008086d000010F9sv*sd*bc*sc*i*
alias:          pci:v00008086d00001514sv*sd*bc*sc*i*
alias:          pci:v00008086d00001507sv*sd*bc*sc*i*
alias:          pci:v00008086d000010FBsv*sd*bc*sc*i*
alias:          pci:v00008086d00001517sv*sd*bc*sc*i*
alias:          pci:v00008086d000010FCsv*sd*bc*sc*i*
alias:          pci:v00008086d000010F7sv*sd*bc*sc*i*
alias:          pci:v00008086d00001508sv*sd*bc*sc*i*
alias:          pci:v00008086d000010DBsv*sd*bc*sc*i*
alias:          pci:v00008086d000010F4sv*sd*bc*sc*i*
alias:          pci:v00008086d000010E1sv*sd*bc*sc*i*
alias:          pci:v00008086d000010F1sv*sd*bc*sc*i*
alias:          pci:v00008086d000010ECsv*sd*bc*sc*i*
alias:          pci:v00008086d000010DDsv*sd*bc*sc*i*
alias:          pci:v00008086d0000150Bsv*sd*bc*sc*i*
alias:          pci:v00008086d000010C8sv*sd*bc*sc*i*
alias:          pci:v00008086d000010C7sv*sd*bc*sc*i*
alias:          pci:v00008086d000010C6sv*sd*bc*sc*i*
alias:          pci:v00008086d000010B6sv*sd*bc*sc*i*
depends:        dca
vermagic:       3.13.6-031306-generic SMP mod_unload modversions
parm:           InterruptType:Change Interrupt Mode (0=Legacy, 1=MSI, 
2=MSI-X), default IntMode (deprecated) (array of int)
parm:           IntMode:Change Interrupt Mode (0=Legacy, 1=MSI, 
2=MSI-X), default 2 (array of int)
parm:           MQ:Disable or enable Multiple Queues, default 1 (array 
of int)
parm:           DCA:Disable or enable Direct Cache Access, 0=disabled, 
1=descriptor only, 2=descriptor and data (array of int)
parm:           RSS:Number of Receive-Side Scaling Descriptor Queues, 
default 0=number of cpus (array of int)
parm:           VMDQ:Number of Virtual Machine Device Queues: 0/1 = 
disable, 2-16 enable (default=8) (array of int)
parm:           max_vfs:Number of Virtual Functions: 0 = disable 
(default), 1-63 = enable this many VFs (array of int)
parm:           L2LBen:L2 Loopback Enable: 0 = disable, 1 = enable 
(default) (array of int)
parm:           InterruptThrottleRate:Maximum interrupts per second, 
per vector, (0,1,956-488281), default 1 (array of int)
parm:           LLIPort:Low Latency Interrupt TCP Port (0-65535) 
(array of int)
parm:           LLIPush:Low Latency Interrupt on TCP Push flag (0,1) 
(array of int)
parm:           LLISize:Low Latency Interrupt on Packet Size (0-1500) 
(array of int)
parm:           LLIEType:Low Latency Interrupt Ethernet Protocol Type 
(array of int)
parm:           LLIVLANP:Low Latency Interrupt on VLAN priority 
threshold (array of int)
parm:           FdirPballoc:Flow Director packet buffer allocation 
                         1 = 8k hash filters or 2k perfect filters
                         2 = 16k hash filters or 4k perfect filters
                         3 = 32k hash filters or 8k perfect filters 
(array of int)
parm:           AtrSampleRate:Software ATR Tx packet sample rate 
(array of int)
parm:           FCoE:Disable or enable FCoE Offload, default 1 (array 
of int)
parm:           LRO:Large Receive Offload (0,1), default 1 = on (array 
of int)
parm:           allow_unsupported_sfp:Allow unsupported and untested 
SFP+ modules on 82599 based adapters, default 0 = Disable (array of 

More information about the Oisf-users mailing list