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 Semiconductor 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:
-
Apple LC Twisted-pair (part #820-0532-A) PDS card
-
Cayman Gatorcard PDS
-
Dayna DaynaPort/E30
In addition, the
sn
interface supports the following interfaces:
-
on-board Ethernet for non-AV Quadras
-
on-board Ethernet for 500-series PowerBooks
-
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
NetBSDpica
port, first appeared in
NetBSD1.3.
Jason Thorpe has rewritten a new machine independent SONIC driver which uses
bus_dma(9)
and
bus_space(9)
APIs after
NetBSD1.5
release, and arc has been switched to using the MI driver.
mac68k has been also switched to using the MI driver after
NetBSD4.0
release.