What does he mean at the end when he mentions: Allocating Rx buffers when using Jumbo Frames on 2. It should be used when you wish to control which speed and duplex combinations are advertised during the auto-negotiation process. If the link partner is forced either full or half , Duplex defaults to half-duplex. The user can turn off this parameter in supported chipsets. This results in unbalanced receive traffic.
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Linux* Base Drivers for Intel® Ethernet Network Connection
The default behavior of the driver previously assumed a untelr InterruptThrottleRate value ofproviding a good fallback value for all traffic types, but lacking in small packet performance and latency. This issue may be seen with PCI-X adapters or with packet split disabled.
This will impart the greatest chance for your system to consume less power.
The range of to interrupts per second works on a majority of systems and is a good starting point, but the optimal value will be platform-specific. The two other lines, I don’t understand either what they are doing. The user can enable it at compile time to add support for LRO from the driver. A receive buffer is also allocated for each descriptor and can be either,or bytes, depending on the MTU setting.
To learn the proper way to configure a network device for your system, refer to your distribution documentation.
Post as a guest Name. Proper tuning, along with TxIntDelay, may improve traffic throughput in specific network conditions.
I added a couple of “ls” commands just to show the directory content. As an example, if you install the e driver for two Gigabit adapters eth0 and eth1 and set the speed and duplex to 10full and half, add the following to modules.
– How do I install Intel ethernet drivers? – Ask Ubuntu
If you encounter the problem in an adapter, and the chipset is an based one, you can verify that your adapter needs the fix by using ethtool: I think this removes the old version and adopts connectino new one, two commands on one line:. Intel Corporation physical id: If you currently have the e driver installed and need to install ee, perform the following: LLI allows for immediate generation of an interrupt upon processing receive packets that match certain criteria as set by the parameters described below.
Useful only if RxIntDelay is non-zero, this value ensures that an interrupt is generated after the initial packet is received within the set amount of time. The igbvf driver supports based virtual function devices that can only be activated on kernels that support SR-IOV. In order to limit the CPU utilization without impacting the overall throughput, we recommend that you load the driver as follows: The hardware can handle many more small packets per second however, and for this reason an adaptive interrupt moderation algorithm was implemented.
This can be an issue on Linux distributions that timeout when checking for link prior to acquiring a DHCP address; however there is usually a way to work around this e. A whitepaper containing information on how to best configure your platform is available on the Intel website.
Jumbo Frames support is enabled by changing the MTU to a value larger than the default of The user should run the Linux firmware kit from http: Sign up or log in Sign up using Google. The driver has two adaptive modes setting 1 or 3 in which it dynamically adjusts the InterruptThrottleRate value based on the traffic that it receives. This parameter is a bit mask that specifies which speed and duplex settings the board advertises. Doing this will cause your VFs to stop working until you reload the PF driver and may cause a spontaneous reboot of your system.
For more information about the InterruptThrottleRate parameter, see the application note at: Yes Advertised link modes: Where to put the resulting driver file in order that the “modprobe ee” command can find it? Sign up or log in Sign up using Google.
Downloads for Intel® Gigabit Ethernet Controller
This parameter is not supported on the based adapter. Ports 1 and 2 don’t show any errors and will pass traffic.
To override the default, use the following compile-time flags. If a system based gigabiy the, or controller is connected to a hub, the Activity LED will blink for all network traffic present on the hub.