[E1000-devel] Intel NIC card IGB Driver

[Biswajit S. <BS...@in...>]

Hi,

We are using intel NIC cards and IGB driver running in a LINUX box.  Even though the hardware throughput of the NIC card is 1 GBPs , we are not able reach even 25% of the limit.

So my question is, what is the way to enable or configure NAPI for IGB driver. As we use Linux, running kernel version  3.10.40, this version of the Linux kernel supports NAPI interfaces.


CX1200-210.116:1-1*:/root # uname -a
Linux CX1200-210.116 3.10.40.cge-rt38-prert #1 SMP PREEMPT RT Thu Sep 29 20:54:10 PDT 2016 x86_64 GNU/Linux

CX1200-210.116:1-1*:/root # ethtool -i  eth0
driver: igb
version: 5.2.9.4
firmware-version: 0.0.0
bus-info: 0000:00:14.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no
CX1200-210.116:1-1*:/root # ethtool eth0
Settings for eth0:
               Supported ports: [ FIBRE ]
               Supported link modes:   100baseT/Full
                                       1000baseT/Full
                                       2500baseX/Full
               Supported pause frame use: Symmetric
               Supports auto-negotiation: Yes
               Advertised link modes:  1000baseT/Full
               Advertised pause frame use: Symmetric
               Advertised auto-negotiation: Yes
               Speed: 1000Mb/s
               Duplex: Full
               Port: FIBRE
               PHYAD: 0
               Transceiver: external
               Auto-negotiation: on
               Supports Wake-on: pumbg
               Wake-on: g
               Current message level: 0x00000007 (7)
                                                    drv probe link
               Link detected: yes
CX1200-210.116:1-1*:/root #

Thanks,
Biswajit..