10gbe ixgbe slow at 420mbyte/s max, p2p lan cat8 1m, tried ethtool and ifconfig options to no avail Post: 303045710

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LEARN ABOUT DEBIAN

if_ixgb

IXGB(4) 						   BSD Kernel Interfaces Manual 						   IXGB(4)

NAME

     ixgb -- Intel(R) PRO/10GbE Ethernet driver for the FreeBSD operating system

SYNOPSIS

     To compile this driver into the kernel, place the following line in your kernel configuration file:

	   device ixgb

     Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

	   if_ixgb_load="YES"

DESCRIPTION

     The ixgb driver provides support for PCI Gigabit Ethernet adapters based on the Intel 82597EX Ethernet controller chips.  The driver supports
     Transmit/Receive checksum offload and Jumbo Frames.

     For questions related to hardware requirements, refer to the documentation supplied with your Intel PRO/10GbE adapter.  All hardware require-
     ments listed apply to use with FreeBSD.

     Support for Jumbo Frames is provided via the interface MTU setting.  Selecting an MTU larger than 1500 bytes with the ifconfig(8) utility
     configures the adapter to receive and transmit Jumbo Frames.  The maximum MTU size for Jumbo Frames is 16114.

     This driver version supports VLANs.  For information on enabling VLANs, see ifconfig(8).

HARDWARE

     The ixgb driver supports the following cards:

     o	 Intel PRO/10GbE LR Server Adapter
     o	 Intel PRO/10GbE SR Server Adapter

DIAGNOSTICS

     ixgb%d: Unable to allocate bus resource: memory  A fatal initialization error has occurred.

     ixgb%d: Unable to allocate bus resource: interrupt  A fatal initialization error has occurred.

     ixgb%d: watchdog timeout -- resetting  The device has stopped responding to the network, or there is a problem with the network connection
     (cable).

SUPPORT

     For general information and support, go to the Intel support website at: http://support.intel.com.

     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 <freebsdnic@mailbox.intel.com>.

SEE ALSO

     arp(4), em(4), netintro(4), ng_ether(4), polling(4), vlan(4), ifconfig(8)

HISTORY

     The ixgb device driver first appeared in FreeBSD 4.11 and FreeBSD 5.3.

AUTHORS

     The ixgb driver was written by Intel Corporation <freebsdnic@mailbox.intel.com>.

BSD
								  August 18, 2006							       BSD