| Linux* Base Driver for Intel(R) Ethernet Network Connection |
| =========================================================== |
| |
| Intel Gigabit Linux driver. |
| Copyright(c) 1999 - 2013 Intel Corporation. |
| |
| Contents |
| ======== |
| |
| - Identifying Your Adapter |
| - Additional Configurations |
| - Support |
| |
| Identifying Your Adapter |
| ======================== |
| |
| This driver supports all 82575, 82576 and 82580-based Intel (R) gigabit network |
| connections. |
| |
| For specific information on how to identify your adapter, go to the Adapter & |
| Driver ID Guide at: |
| |
| http://support.intel.com/support/go/network/adapter/idguide.htm |
| |
| Command Line Parameters |
| ======================= |
| |
| The default value for each parameter is generally the recommended setting, |
| unless otherwise noted. |
| |
| max_vfs |
| ------- |
| Valid Range: 0-7 |
| Default Value: 0 |
| |
| This parameter adds support for SR-IOV. It causes the driver to spawn up to |
| max_vfs worth of virtual function. |
| |
| Additional Configurations |
| ========================= |
| |
| Jumbo Frames |
| ------------ |
| Jumbo Frames support is enabled by changing the MTU to a value larger than |
| the default of 1500. Use the ip command to increase the MTU size. |
| For example: |
| |
| ip link set dev eth<x> mtu 9000 |
| |
| This setting is not saved across reboots. |
| |
| Notes: |
| |
| - The maximum MTU setting for Jumbo Frames is 9216. This value coincides |
| with the maximum Jumbo Frames size of 9234 bytes. |
| |
| - Using Jumbo frames at 10 or 100 Mbps is not supported and may result in |
| poor performance or loss of link. |
| |
| ethtool |
| ------- |
| The driver utilizes the ethtool interface for driver configuration and |
| diagnostics, as well as displaying statistical information. The latest |
| version of ethtool can be found at: |
| |
| http://ftp.kernel.org/pub/software/network/ethtool/ |
| |
| Enabling Wake on LAN* (WoL) |
| --------------------------- |
| WoL is configured through the ethtool* utility. |
| |
| For instructions on enabling WoL with ethtool, refer to the ethtool man page. |
| |
| WoL will be enabled on the system during the next shut down or reboot. |
| For this driver version, in order to enable WoL, the igb driver must be |
| loaded when shutting down or rebooting the system. |
| |
| Wake On LAN is only supported on port A of multi-port adapters. |
| |
| Wake On LAN is not supported for the Intel(R) Gigabit VT Quad Port Server |
| Adapter. |
| |
| Multiqueue |
| ---------- |
| In this mode, a separate MSI-X vector is allocated for each queue and one |
| for "other" interrupts such as link status change and errors. All |
| interrupts are throttled via interrupt moderation. Interrupt moderation |
| must be used to avoid interrupt storms while the driver is processing one |
| interrupt. The moderation value should be at least as large as the expected |
| time for the driver to process an interrupt. Multiqueue is off by default. |
| |
| REQUIREMENTS: MSI-X support is required for Multiqueue. If MSI-X is not |
| found, the system will fallback to MSI or to Legacy interrupts. |
| |
| MAC and VLAN anti-spoofing feature |
| ---------------------------------- |
| When a malicious driver attempts to send a spoofed packet, it is dropped by |
| the hardware and not transmitted. An interrupt is sent to the PF driver |
| notifying it of the spoof attempt. |
| |
| When a spoofed packet is detected the PF driver will send the following |
| message to the system log (displayed by the "dmesg" command): |
| |
| Spoof event(s) detected on VF(n) |
| |
| Where n=the VF that attempted to do the spoofing. |
| |
| Setting MAC Address, VLAN and Rate Limit Using IProute2 Tool |
| ------------------------------------------------------------ |
| You can set a MAC address of a Virtual Function (VF), a default VLAN and the |
| rate limit using the IProute2 tool. Download the latest version of the |
| iproute2 tool from Sourceforge if your version does not have all the |
| features you require. |
| |
| |
| Support |
| ======= |
| |
| For general information, go to the Intel support website at: |
| |
| www.intel.com/support/ |
| |
| or the Intel Wired Networking project hosted by Sourceforge at: |
| |
| http://sourceforge.net/projects/e1000 |
| |
| If an issue is identified with the released source code on the supported |
| kernel with a supported adapter, email the specific information related |
| to the issue to e1000-devel@lists.sf.net |
