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Documentation of Ethernet and FDDI driver support functions and macros.

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is 1997-05-25 15:54:22 +00:00
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9
share/man/man9/Makefile
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@ -1,9 +1,9 @@
# $NetBSD: Makefile,v 1.22 1997/05/22 03:46:33 jeremy Exp $
# $NetBSD: Makefile,v 1.23 1997/05/25 15:54:22 is Exp $
# Makefile for section 9 (kernel function and variable) manual pages.
MAN= access.9 arp.9 copy.9 cpu_reboot.9 ctxsw.9 \
disk.9 disklabel.9 doshutdownhooks.9 \
disk.9 disklabel.9 doshutdownhooks.9 ethersubr.9\
extent.9 fetch.9 inittodr.9 intro.9 log.9 malloc.9 panic.9 pfil.9 \
physio.9 psignal.9 resettodr.9 shutdownhook_establish.9 sleep.9 spl.9 \
store.9 time.9 timeout.9 vslock.9
@ -17,6 +17,11 @@ MLINKS+=disk.9 disk_init.9 disk.9 disk_attach.9 disk.9 disk_detatch.9 \
disk.9 disk_resetstat.9
MLINKS+=disklabel.9 readdisklabel.9 disklabel.9 writedisklabel.9 \
disklabel.9 setdisklabel.9 disklabel.9 bounds_check_with_label.9
MLINKS+=ethersubr.9 ether_ifattach.9 ethersubr.9 ether_addmulti.9 \
ethersubr.9 ether_delmulti.9 ethersubr.9 ETHER_IS_MULTICAST.9 \
ethersubr.9 ETHER_FIRST_MULTI.9 ethersubr.9 ETHER_NEXT_MULTI.9 \
ethersubr.9 fddi_ifattach.9 \
ethersubr.9 fddi_addmulti.9 ethersubr.9 fddi_delmulti.9
MLINKS+=extent.9 extent_create.9 extent.9 extent_destroy.9 \
extent.9 extent_alloc.9 extent.9 extent_alloc_subregion.9 \
extent.9 extent_alloc_region.9 extent.9 extent_free.9 \

185
share/man/man9/ethersubr.9 Normal file
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.\" $NetBSD: ethersubr.9,v 1.1 1997/05/25 15:54:25 is Exp $
.\"
.\" Copyright (c) 1997 Ignatios Souvatzis.
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed for the NetBSD Project
.\" by Ignatios Souvatzis
.\" 4. The name of the author may not be used to endorse or promote products
.\" derived from this software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.Dd Mar 3, 1997
.Dt ETHERSUBR 9
.Os NetBSD
.Sh NAME
.Nm ETHERSUBR
.Nd Ethernet and FDDI driver support functions and macros
.Sh SYNOPSIS
.Fd #include <net/if_ether.h>
.Ft void
.Fn ether_ifattach "struct ifnet *ifp" "u_int8_t *lla"
.Ft int
.Fn ether_addmulti "struct ifrequest *ifr" "struct ethercom *ec"
.Ft int
.Fn ether_delmulti "struct ifrequest *ifr" "struct ethercom *ec"
.Ft void
.Fn ETHER_FIRST_MULTI "struct ether_multistep step" "struct ethercom *ec" "struct ether_multi *enm"
.Ft void
.Fn ETHER_NEXT_MULTI "struct ether_multistep step" "struct ether_multi *enm"
.Ft int
.Fn ETHER_IS_MULTICAST "u_int8_t *addr"
.Fd #include <net/if_fddi.h>
.Ft void
.Fn fddi_ifattach "struct ifnet *ifp" "u_int8_t *lla"
.Ft int
.Fn fddi_addmulti "struct ifrequest *ifr" "struct ethercom *ec"
.Ft int
.Fn fddi_delmulti "struct ifrequest *ifr" "struct ethercom *ec"
.Sh DESCRIPTION
The
.Nm
functions provide the interface between the
.Nm
module and the network drivers which need Ethernet support. Such
drivers must request the "ether" attribute in their "files" declaration
and call the appropriate functions as specified below.
FDDI drivers must request the "fddi" attribute in their "files"
declaration and call the functions tagged with "fddi_" or "FDDI_"
instead, where different. Some macros are shared.
Note that you also need the
.Xr ARP 9
stuff to support IPv4 on your hardware.
.Bl -tag -width compact
.It Fn ether_ifattach
Perform the device independent, but Ethernet specific initialization of
the interface pointed to by
.Fa ifp .
Among other duties, this function creates a record for the link level
address in the interfaces' address list and records the link level address
pointed to by
.Fa lla
there.
You must call this function from the drivers' attach function.
.It Fn fddi_ifattach
corresponding function for FDDI devices.
.It Fn ether_addmulti
.It Fn ether_delmulti
Add (
.Fn ether_addmulti )
or delete (
.Fn ether_delmulti )
the address described by the
.Fa ifr
pointer to the Ethernet multicast list belonging to
.Fa ec .
These functions must be called from the drivers' ioctl function to
handle SIOCADDMULTI and SIOCDELMULTI requests. If they return
ENETRESET, the hardware multicast filter must be reinitialized.
These functions accept AF_UNSPEC addresses, which are interpreted as
Ethernet addresses, or AF_INET addresses. In the latter case,
INADDR_ANY is mapped to a range describing all the Ethernet address
space reserved for IPv4 multicast addresses.
.Fn ether_addmulti
returns EAFNOSUPPORT if an unsupportedd address family is specified,
or EINVAL, if a non-multicast address is specified, or ENETRESET, if
the multicast list really changed and the driver should synchronize
its hardware filter with it.
.Fn ether_delmulti
returns, in addition to the above errors, ENXIO, if the specified address
can't be found in the list of multicast addresses.
.It Fn ETHER_NEXT_MULTI
is a macro to step through all of the ether_multi records, one at a time.
The current position is remembered in
.Fa step ,
which the caller must provide.
.It Fn ETHER_FIRST_MULTI
must be called to initialize
.Fa step
and get the first record. Both macros return a NULL
.Fa enm
when there are no remaining records.
.It Fn fddi_addmulti
.It Fn fddi_delmulti
corresponding functions for FDDI devices.
.It Fn ETHER_IS_MULTICAST
returns 1, if
.Fa addr
points to an Ethernet/FDDI multicast (or broadcast) address.
Implemented as a macro.
.El
.\" .Sh ERRORS
.Sh SEE ALSO
.Xr arp 9 .
.Sh AUTHORS
UCB CSRG (original implementation)
.br
Ignatios Souvatzis (support for new ARP system)
.\" .Sh BUGS
.\" .Sh STANDARDS
.Sh FILES
Ethernet support functions are declared in /usr/src/sys/net/if_ether.h
and defined (if not implemented as macro) in
/usr/src/sys/net/if_ethersubr.c.
FDDI support functions are declared in /usr/src/sys/net/if_fddi.h and
defined (if not implemented as macro) in /usr/src/sys/net/if_fddisubr.c.
.Sh HISTORY
Rewritten to attach to the new ARP system in
.Nx 1.2d .