1*61595Sbostic.\" Copyright (c) 1986, 1991, 1993 2*61595Sbostic.\" The Regents of the University of California. All rights reserved. 326208Ssklower.\" 443582Strent.\" %sccs.include.redist.man% 526208Ssklower.\" 6*61595Sbostic.\" @(#)de.4 8.1 (Berkeley) 06/05/93 736756Sbostic.\" 847674Scael.Dd 947674Scael.Dt DE 4 vax 1047674Scael.Os BSD 4.2 1147674Scael.Sh NAME 1247674Scael.Nm de 1347674Scael.Nd 1447674Scael.Tn DEC DEUNA 1547674Scael10 Mb/s Ethernet interface 1647674Scael.Sh SYNOPSIS 1747674Scael.Cd "device de0 at uba0 csr 174510 vector deintr" 1847674Scael.Sh DESCRIPTION 1926208SsklowerThe 2047674Scael.Nm de 2126208Ssklowerinterface provides access to a 10 Mb/s Ethernet network through 2247674Scaela Digital Equipment 2347674Scael.Tn UNIBUS 2447674ScaelNetwork Adapter 2547674Scael.Pq Tn DEUNA . 2647674Scael.Pp 2728251SkarelsEach of the host's network addresses 2847674Scaelis specified at boot time with an 2947674Scael.Dv SIOCSIFADDR 3047674Scael.Xr ioctl 2 . 3147674ScaelThe 3247674Scael.Nm de 3326208Ssklowerinterface employs the address resolution protocol described in 3447674Scael.Xr arp 4 3526208Ssklowerto dynamically map between Internet and Ethernet addresses on the local 3626208Ssklowernetwork. 3747674Scael.Pp 3847674ScaelThe interface normally tries to use a 3947674Scael.Dq trailer 4047674Scaelencapsulation 4128251Skarelsto minimize copying data on input and output. 4247674ScaelThe use of trailers is negotiated with 4347674Scael.Tn ARP . 4428251SkarelsThis negotiation may be disabled, on a per-interface basis, 4547674Scaelby setting the 4647674Scael.Dv IFF_NOTRAILERS 4747674Scaelflag with an 4847674Scael.Dv SIOCSIFFLAGS 4947674Scael.Xr ioctl . 5047674Scael.Sh DIAGNOSTICS 5147674Scael.Bl -diag 5247674Scael.It de%d: hardware address %s. 5326208SsklowerThis is a normal autoconfiguration message noting the 6 byte physical 5426208Ssklowerethernet address of the adapter. 5547674Scael.Pp 5647674Scael.It de%d: oerror, flags=%b tdrerr=%b (len=%d). 5726208SsklowerThe hardware indicated an error 5826208Ssklowerin transmitting a packet to the cable. 5926208SsklowerThe status and error flags are reported. 6047674Scael.Pp 6147674Scael.It de%d: ierror, flags=%b lenerr=%b (len=%d). 6226208SsklowerThe hardware indicated an error 6326208Ssklowerin reading a packet from the cable. 6426208SsklowerThe status and error flags are reported. 6547674Scael.Pp 6647674Scael.It de%d: can't handle af%d. 6747674ScaelThe interface was handed 6826208Ssklowera message with addresses formatted in an unsuitable address 6926208Ssklowerfamily; the packet was dropped. 7047674Scael.Pp 7147674Scael.It de%d: buffer unavailable. 7247674ScaelThe interface received more packets 7326208Ssklowerthan it had buffers allocated to receive them. 7447674Scael.Pp 7547674Scael.It de%d: address change failed, csr0=%b csr1=%b. 7626208SsklowerThe interface was unable to reprogram 7726208Ssklowerits physical ethernet address. 7826208SsklowerThis may happen with very early models of the interface. 7926208SsklowerThis facility is used only when 8047674Scaelthe controller is not the first network interface configured for 8147674Scael.Tn XNS . 8247674Scael.El 8347674Scael.Pp 8426208SsklowerThe following messages indicate a probable hardware error performing 8526208Ssklowerthe indicated operation during autoconfiguration or initialization. 8626208SsklowerThe two control and status registers 8726208Ssklowershould indicate the nature of the failure. 8826208SsklowerSee the hardware manual for details. 8947674Scael.Pp 9047674Scael.Bl -diag 9147674Scael.It de%d: reset failed, csr0=%b csr1=%b. 9247674Scael.It de%d: ppcb failed, csr0=%b csr1=%b. 9347674Scael.It de%d: read addr failed, csr0=%b csr1=%b. 9447674Scael.It de%d: wtring failed, csr0=%b csr1=%b. 9547674Scael.It de%d: wtmode failed, csr0=%b csr1=%b. 9647674Scael.El 9747674Scael.Sh SEE ALSO 9847674Scael.Xr netintro 4 , 9947674Scael.Xr inet 4 , 10047674Scael.Xr arp 4 10147674Scael.Sh HISTORY 10247674ScaelThe 10347674Scael.Nm 10447674Scaeldriver appeared in 10547674Scael.Bx 4.3 . 106