NAME
de —
DEC DEUNA/DELUA Ethernet
device
SYNOPSIS
de0 at uba? csr 0174510
DESCRIPTION
The de interface provides access to a 10
Mb/s Ethernet network through a Digital Equipment UNIBUS Network Adapter
(DEUNA).
The interface normally tries to use a “trailer”
encapsulation to minimize copying data on input and output. The use of
trailers is negotiated with ARP. This negotiation may be disabled, on a
per-interface basis, by setting the IFF_NOTRAILERS
flag with an SIOCSIFFLAGS
ioctl(2).
DIAGNOSTICS
- de0: hardware address ....
- This is a normal autoconfiguration message noting the 6 byte physical Ethernet address of the adapter.
- de0: oerror, flags=... tdrerr=....
- The hardware indicated an error in transmitting a packet to the cable. The status and error flags are reported.
- de0: ierror, flags=... lenerr=... (len=N).
- The hardware indicated an error in reading a packet from the cable. The status and error flags are reported.
- de0: buffer unavailable.
- The interface received more packets than it had buffers allocated to receive them.
The following messages indicate a probable hardware error performing the indicated operation during autoconfiguration or initialization. The two control and status registers should indicate the nature of the failure. See the hardware manual for details.
- de0: reset failed, csr0=... csr1=....
- de0: ppcb failed, csr0=... csr1=....
- de0: read addr failed, csr0=... csr1=....
- de0: wtring failed, csr0=... csr1=....
- de0: wtmode failed, csr0=... csr1=....
SEE ALSO
arp(4), inet(4), intro(4), netintro(4), uba(4), hostname.if(5), ifconfig(8)
HISTORY
The de driver appeared in
4.3BSD.