10-20-2010
Simulated driver for Network Interface Adapter
Hi all, I got sort of a task to do. I have to write in C "simulated network driver". What does it mean?
- It has to run on all network adapters
- It has to be as simple as it can be
- It has to run on all linux distributions (or at least most of them)
- It does not have to run a network service or any network-connected things
- after ifconfig up - it has to run a task - whatever (e.g. show some text, or light a 'caps lock' diode, or something else)
I have never written drivers on linux, but I'm very good at C programming.
Could you give me some hints how to do that?
Regards.
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IXG(4) BSD Kernel Interfaces Manual IXG(4)
NAME
ixg -- Intel(R) 10Gb Ethernet driver
SYNOPSIS
ixg* at pci? dev ? function ?
DESCRIPTION
The ixg driver provides support for PCI 10Gb Ethernet adapters based on the Intel(R) 82598EB and 82599 10 GbE Controllers. The driver sup-
ports Jumbo Frames, TCP Segmentation Offload (TSO).
For questions related to hardware requirements, refer to the documentation supplied with your Intel 10GbE adapter. All hardware requirements
listed apply to use with NetBSD.
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. On NetBSD, the maximum MTU size for Jumbo Frames is 9000 bytes.
This driver version supports VLANs. For information on enabling VLANs, see ifconfig(8).
HARDWARE
The ixg driver supports the following cards:
o Intel(R) 10 Gigabit XF SR/AF Dual Port Server Adapter
o Intel(R) 10 Gigabit XF SR/LR Server Adapter
o Intel(R) 82598EB 10 Gigabit AF Network Connection
o Intel(R) 82598EB 10 Gigabit AT CX4 Network Connection
DIAGNOSTICS
ixg%d: Unable to allocate bus resource: memory A fatal initialization error has occurred.
ixg%d: Unable to allocate bus resource: interrupt A fatal initialization error has occurred.
ixg%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.
SEE ALSO
arp(4), netintro(4), vlan(4), ifconfig(8)
HISTORY
The ixg device driver comes from FreeBSD, where it is called ixgbe(4). It first appeared in NetBSD 6.0.
AUTHORS
The ixg driver was written by Intel Corporation <freebsdnic@mailbox.intel.com>. It was imported from FreeBSD into NetBSD by
David Young <dyoung@NetBSD.org>.
BUGS
The hardware supports a maximum MTU of 16114 bytes, but the NetBSD port of the driver supports only 9000 bytes.
The hardware supports Message-Signalled Interrupts (MSI and MSI-X) and Receive-Side Scaling (RSS), however, these features are not enabled in
the NetBSD driver at this time.
BSD
July 25, 2011 BSD