de(4) [bsd man page]

DE(4)							     Kernel Interfaces Manual							     DE(4)

NAME

       de - DEC DEUNA 10 Mb/s Ethernet interface

SYNOPSIS

       /sys/conf/SYSTEM:
	    NDE  de_controllers # DEUNA

DESCRIPTION

       The de interface provides access to a 10 Mb/s Ethernet network through a Digital Equipment UNIBUS Network Adapter (DEUNA).

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

       The interface normally tries to use a ``trailer'' encapsulation to minimize copying data on input and output.  The use of trailers is nego-
       tiated  with  ARP.   This  negotiation  may  be disabled, on a per-interface basis, by setting the IFF_NOTRAILERS flag with an SIOCSIFFLAGS
       ioctl.

DIAGNOSTICS

       de%d: hardware address %s.  This is a normal autoconfiguration message noting the 6 byte physical ethernet address of the adapter.

       de%d: oerror, flags=%b tdrerr=%b (len=%d).  The hardware indicated an error in transmitting a packet to the cable.  The	status	and  error
       flags are reported.

       de%d: ierror, flags=%b lenerr=%b (len=%d).  The hardware indicated an error in reading a packet from the cable.	The status and error flags
       are reported.

       de%d: can't handle af%d.  The interface was handed a message with addresses formatted in an  unsuitable	address  family;  the  packet  was
       dropped.

       de%d: buffer unavailable.  The interface received more packets than it had buffers allocated to receive them.

       de%d:  address  change failed, csr0=%b csr1=%b.	The interface was unable to reprogram its physical ethernet address.  This may happen with
       very early models of the interface.  This facility is used only when the controller is not the first network interface configured for XNS.

       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.

       de%d: reset failed, csr0=%b csr1=%b.

       de%d: ppcb failed, csr0=%b csr1=%b.

       de%d: read addr failed, csr0=%b csr1=%b.

       de%d: wtring failed, csr0=%b csr1=%b.

       de%d: wtmode failed, csr0=%b csr1=%b.

SEE ALSO

       intro(4N), inet(4F), arp(4P)

3rd Berkeley Distribution					  August 20, 1987							     DE(4)

Check Out this Related Man Page

ln(4) Kernel Interfaces Manual ln(4)

Name
ln - Lance Ethernet interface

Syntax
device ln0 at ibus? vector lnintr

Description
The interface provides access to a 10 Mb/s Ethernet network through the Lance controller.

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

The interface normally tries to use a trailer encapsulation to minimize copying data on input and output. This can be disabled for an
interface by setting the IFF_NOTRAILERS flag with an SIOCSIFFLAGS ioctl. Trailers are only used for packets destined for Internet hosts.

The SIOCSPHYSADDR ioctl can be used to change the physical address of the Lance. The SIOCRPHYSADDR ioctl can be used to read the physical
address of the Lance.

The SIOCADDMULTI and SIOCDELMULTI ioctls can be used to add or delete multicast addresses. The Lance recognizes a maximum of 12 multicast
addresses.

The SIOCRDCTRS and SIOCRDZCTRS ioctls can be used to read or ``read and clear'' the Ethernet driver counters. The argument to these two
ioctls is a pointer to a counter structure, found in

The SIOCENABLBACK and SIOCDISABLBACK ioctls can be used to enable and disable the interface loopback mode respectively.

Diagnostics
The diagnostic error messages contain relevant information provided by the Lance.

ln%d: can't handle af%d
The interface was handed a message with addresses formated in an unsuitable address family, and the packet was dropped.

ln%d: memory error (MERR)
A memory parity error has occurred.

ln%d: lnalloc: cannot alloc memory ...
The driver was unable to allocate memory for internal data structures.

ln%d: initialization error
The driver was unable to initialize the network interface.

ln%d: SIOCADDMULTI fail, multicast list full
Too many multicast requests have been made.

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de(4) [bsd man page]

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