1*47674Scael.\" Copyright (c) 1986, 1991 The Regents of the University of California. 236756Sbostic.\" All rights reserved. 326208Ssklower.\" 443582Strent.\" %sccs.include.redist.man% 526208Ssklower.\" 6*47674Scael.\" @(#)de.4 6.5 (Berkeley) 03/27/91 736756Sbostic.\" 8*47674Scael.Dd 9*47674Scael.Dt DE 4 vax 10*47674Scael.Os BSD 4.2 11*47674Scael.Sh NAME 12*47674Scael.Nm de 13*47674Scael.Nd 14*47674Scael.Tn DEC DEUNA 15*47674Scael10 Mb/s Ethernet interface 16*47674Scael.Sh SYNOPSIS 17*47674Scael.Cd "device de0 at uba0 csr 174510 vector deintr" 18*47674Scael.Sh DESCRIPTION 1926208SsklowerThe 20*47674Scael.Nm de 2126208Ssklowerinterface provides access to a 10 Mb/s Ethernet network through 22*47674Scaela Digital Equipment 23*47674Scael.Tn UNIBUS 24*47674ScaelNetwork Adapter 25*47674Scael.Pq Tn DEUNA . 26*47674Scael.Pp 2728251SkarelsEach of the host's network addresses 28*47674Scaelis specified at boot time with an 29*47674Scael.Dv SIOCSIFADDR 30*47674Scael.Xr ioctl 2 . 31*47674ScaelThe 32*47674Scael.Nm de 3326208Ssklowerinterface employs the address resolution protocol described in 34*47674Scael.Xr arp 4 3526208Ssklowerto dynamically map between Internet and Ethernet addresses on the local 3626208Ssklowernetwork. 37*47674Scael.Pp 38*47674ScaelThe interface normally tries to use a 39*47674Scael.Dq trailer 40*47674Scaelencapsulation 4128251Skarelsto minimize copying data on input and output. 42*47674ScaelThe use of trailers is negotiated with 43*47674Scael.Tn ARP . 4428251SkarelsThis negotiation may be disabled, on a per-interface basis, 45*47674Scaelby setting the 46*47674Scael.Dv IFF_NOTRAILERS 47*47674Scaelflag with an 48*47674Scael.Dv SIOCSIFFLAGS 49*47674Scael.Xr ioctl . 50*47674Scael.Sh DIAGNOSTICS 51*47674Scael.Bl -diag 52*47674Scael.It de%d: hardware address %s. 5326208SsklowerThis is a normal autoconfiguration message noting the 6 byte physical 5426208Ssklowerethernet address of the adapter. 55*47674Scael.Pp 56*47674Scael.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. 60*47674Scael.Pp 61*47674Scael.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. 65*47674Scael.Pp 66*47674Scael.It de%d: can't handle af%d. 67*47674ScaelThe interface was handed 6826208Ssklowera message with addresses formatted in an unsuitable address 6926208Ssklowerfamily; the packet was dropped. 70*47674Scael.Pp 71*47674Scael.It de%d: buffer unavailable. 72*47674ScaelThe interface received more packets 7326208Ssklowerthan it had buffers allocated to receive them. 74*47674Scael.Pp 75*47674Scael.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 80*47674Scaelthe controller is not the first network interface configured for 81*47674Scael.Tn XNS . 82*47674Scael.El 83*47674Scael.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. 89*47674Scael.Pp 90*47674Scael.Bl -diag 91*47674Scael.It de%d: reset failed, csr0=%b csr1=%b. 92*47674Scael.It de%d: ppcb failed, csr0=%b csr1=%b. 93*47674Scael.It de%d: read addr failed, csr0=%b csr1=%b. 94*47674Scael.It de%d: wtring failed, csr0=%b csr1=%b. 95*47674Scael.It de%d: wtmode failed, csr0=%b csr1=%b. 96*47674Scael.El 97*47674Scael.Sh SEE ALSO 98*47674Scael.Xr netintro 4 , 99*47674Scael.Xr inet 4 , 100*47674Scael.Xr arp 4 101*47674Scael.Sh HISTORY 102*47674ScaelThe 103*47674Scael.Nm 104*47674Scaeldriver appeared in 105*47674Scael.Bx 4.3 . 106