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NetBSD 6.1.5 - man page for sn (netbsd section 4)

SN(4)				   BSD Kernel Interfaces Manual 			    SN(4)

NAME
     sn -- National Semiconductor DP83932 (SONIC) based Ethernet device driver

SYNOPSIS
   arc
     sn0 at jazzio?

   mac68k
     sn* at obio?
     sn* at nubus?

DESCRIPTION
     The sn interface provides access to a 10 Mb/s Ethernet network via the National Semiconduc-
     tor DP83932 (SONIC) Ethernet chip set.

     Each of the host's network addresses is specified at boot time with an SIOCSIFADDR ioctl(2).
     The sn interface employs the address resolution protocol described in arp(4) to dynamically
     map between Internet and Ethernet addresses on the local network.

HARDWARE
   arc
     The sn driver supports on-board JAZZ based SONIC interfaces found on Acer PICA and NEC
     machines.

   mac68k
     The sn driver is currently known to support the following NuBus cards:
	   o   Apple LC Twisted-pair (part #820-0532-A) PDS card
	   o   Cayman Gatorcard PDS
	   o   Dayna DaynaPort/E30

     In addition, the sn interface supports the following interfaces:
	   o   on-board Ethernet for non-AV Quadras
	   o   on-board Ethernet for 500-series PowerBooks
	   o   Apple CS Ethernet Twisted-pair card for Comm Slot found on LC575, Quadra 630,
	       LC630, and Performa 580.

DIAGNOSTICS
     sn%d: transmit FIFO underrun
     sn%d: receive FIFO overrun
     sn%d: receive buffer exceeded
     sn%d: receive buffers exhausted
     sn%d: receive descriptors exhausted  These messages indicate that the interface gets errors
     (due to heavy load etc.) and reinitialized.

SEE ALSO
     arp(4), inet(4), netintro(4), ifconfig(8)

HISTORY
     The sn interface for mac68k, which was derived from a driver for old NetBSD/pica port, first
     appeared in NetBSD 1.3.

     Jason Thorpe has rewritten a new machine independent SONIC driver which uses bus_dma(9) and
     bus_space(9) APIs after NetBSD 1.5 release, and NetBSD/arc has been switched to using the
     machine independent (MI) driver.

     NetBSD/mac68k has also been switched to using the MI driver after the NetBSD 4.0 release.

BSD					   May 16, 2009 				      BSD


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