rdcphy(4) [netbsd man page]

RDCPHY(4)						   BSD Kernel Interfaces Manual 						 RDCPHY(4)

NAME

     rdcphy -- Driver for RDC R6040 Fast Ethernet controller internal PHY

SYNOPSIS

     rdcphy* at mii? phy ?

DESCRIPTION

     The rdcphy driver supports the internal PHY on RDC R6040 Ethernet interfaces, commonly found on Vortex86 System On a Chip (SoC).

SEE ALSO

     ifmedia(4), intro(4), mii(4), vte(4), ifconfig(8)

BSD
								 January 23, 2011							       BSD

VTE(4)							   BSD Kernel Interfaces Manual 						    VTE(4)

NAME

     vte -- Vortex86 RDC R6040 Fast Ethernet driver

SYNOPSIS

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

	   device miibus
	   device vte

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

	   if_vte_load="YES"

DESCRIPTION

     The vte device driver provides support for RDC R6040 Fast Ethernet controller which is commonly found on Vortex86 System On a Chip (SoC).

     The RDC R6040 has integrated 10/100 PHY for 10/100Mbps support in full or half-duplex.  The controller supports interrupt moderation mecha-
     nism, a 64-bit multicast hash filter, VLAN over-size frame and four station addresses.  The vte device driver uses three station addresses
     out of four as perfect multicast filter.

     The vte driver supports the following media types:

     autoselect   Enable autoselection of the media type and options.  The user can manually override the autoselected mode by adding media
		  options to rc.conf(5).

     10baseT/UTP  Set 10Mbps operation.

     100baseTX	  Set 100Mbps (Fast Ethernet) operation.

     The vte driver supports the following media options:

     full-duplex  Force full duplex operation.

     half-duplex  Force half duplex operation.

     For more information on configuring this device, see ifconfig(8).

HARDWARE

     The vte device driver provides support for the following Ethernet controllers:

     o	 DM&P Vortex86 RDC R6040 Fast Ethernet controller

LOADER TUNABLES

     Tunables can be set at the loader(8) prompt before booting the kernel or stored in loader.conf(5).

     hw.vte.tx_deep_copy
	     The RDC R6040 controller has no auto-padding support for short frames and the controller's DMA engine does not have capability to
	     handle multiple buffers for a TX frame such that driver has to create a single contiguous TX buffer.  This hardware limitation leads
	     to poor TX performance since most of CPU cycles are wasted on both de-fragmenting mbuf chains and padding.  This tunable enables deep
	     copy operation for TX frames such that driver will spend less CPU cycles in de-fragmentation with the cost of extra TX buffer memory.
	     The default value is 1 to use deep copy.

SYSCTL VARIABLES

     The following variables are available as both sysctl(8) variables and loader(8) tunables:

     dev.vte.%d.rx_mod
	     Maximum number of packets to fire RX completion interrupt.  The accepted range is 0 to 15, the default is 15.

     dev.vte.%d.tx_mod
	     Maximum number of packets to fire TX completion interrupt.  The accepted range is 0 to 15, the default is 15.

     dev.vte.%d.stats
	     Show hardware MAC statistics maintained in driver.

SEE ALSO

     altq(4), arp(4), miibus(4), netintro(4), ng_ether(4), vlan(4), ifconfig(8)

     DM&P Electronics Inc. Vortex86, http://www.dmp.com.tw.

HISTORY

     The vte driver was written by Pyun YongHyeon <yongari@FreeBSD.org>.  It first appeared in FreeBSD 8.3.

BSD
								 December 30, 2010							       BSD