This parameter is supported only on , and later adapters. In addition, the controller is automatically reset, restoring the network connection. This parameter is supported only on adapters using copper connections. Transmit interrupt reduction can improve CPU efficiency if properly tuned for specific network traffic. The default operation is auto-negotiate.
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Linux* Base Drivers for Intel® Ethernet Network Connection
This value specifies the number of receive buffer descriptors allocated by the driver. A receive buffer is also allocated for each descriptor and can be either,or bytes, depending on the MTU setting.
The following adapters limit Jumbo Frames sized packets to a maximum of bytes: This script will verify that the adapter is applicable to the fix and if the fix is needed or not.
TxDescriptorStep 1 use every Tx Descriptor 4 use every 4th Tx Descriptor 1 use every Tx Descriptor On certain non-Intel architectures, it has been observed that intense TX traffic bursts of short packets may result in an improper descriptor writeback. To resolve this issue build the driver step 4 above using the command:. Link messages will not be displayed to the console if the distribution is restricting system messages.
FreeBSD Manual Pages
NAPI Rx polling mode is supported in the e driver. For this driver version, in order to enable WoL, the e driver must be loaded prior to shutting down or suspending the system.
If during this process you are asked for the driver or module name, the name for the Linux Base Driver for the Gigabit family of adapters is e This option allows for the ability of IEEE It is most effective in an environment with many small transactions. With some Phy and switch combinations, link can take longer than expected.
Linux source code: drivers/net/ethernet/intel/igb/igb_main.c (v) – Bootlin
Enables or disables DMA Coalescing feature. An interrupt is sent to the PF driver notifying it of the spoof attempt. RPM functionality has only been tested in Red Hat distributions.
Configuring a network driver to load properly when the system is started is distribution dependent. This parameter is different than other parameters, in that it is liinux single not 1,1,1 etc. This is a 3rd party limitation. 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 user can turn off this parameter in supported chipsets. In order to limit the CPU utilization without impacting the overall throughput, we recommend that you load the driver as follows: Ports 1 llinux 2 don’t show any errors and will pass traffic.
Linux Driver for Intel® Gigabit Network Connections
A descriptor describes a data buffer and attributes related to the data buffer. In kernel versions 2.
For the build to work properly, the currently running kernel MUST match the version and configuration of the installed kernel sources. However, the frequency and random intervals at which packets arrive do not allow the system to enter a lower power state.
NAPI is enabled or disabled based on the configuration of the kernel. For other Linux distributions, download and install ethtool from the following website: TxDescriptors This value is the number of transmit descriptors allocated by the driver.
Use the iigb command to increase the MTU size.
If you currently have the e driver installed and need to install llnux, perform the following:. The configuration change can be made permanent by adding the ugb 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.
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.