Commit Graph

120 Commits

Author SHA1 Message Date
Poul-Henning Kamp
46783fb897 Remove NBPF conditionality of bpf calls in most of our network drivers.
This means that we will not have to have a bpf and a non-bpf version
of our driver modules.

This does not open any security hole, because the bpf core isn't loadable

The drivers left unchanged are the "cross platform" drivers where the respective
maintainers are urged to DTRT, whatever that may be.

Add a couple of missing FreeBSD tags.
1999-09-25 12:06:01 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Mike Smith
3ed7a59b07 Clean up after removing sys/eventhandler.h from sys/systm.h at the last
minute.  This should cover all of the missed cases (and should let LINT
build again).
1999-08-21 22:10:49 +00:00
Mike Smith
fcb893a801 Implement a new generic mechanism for attaching handler functions to
events, in order to pave the way for removing a number of the ad-hoc
implementations currently in use.

Retire the at_shutdown family of functions and replace them with
new event handler lists.

Rework kern_shutdown.c to take greater advantage of the use of event
handlers.

Reviewed by:	green
1999-08-21 06:24:40 +00:00
Matthew N. Dodd
ef2d104210 Fix stupid error (xse -> xsc).
Notice that 'unit' wasn't defined once I changed the parameters of the func.

These things make me feel like wading in with a flamethrowr or something.

Too much cruft!
</rant>
1999-08-20 14:36:40 +00:00
Matthew N. Dodd
e4fd6edfd8 Set ifp->if_init to the right function.
if_init_f_t is passed void * containing the address of ifp->if_softc
not the unit number.

Someone tell me if these things don't work as I don't have the hardware
needed to test them. (thats a first.)

I'll get if_ze and if_zp later.

Pointed out by: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
1999-08-20 14:12:14 +00:00
Matthew N. Dodd
4b31e9d6a7 Make these actually compile. I got a little delete happy pruning includes
and used 'command' instead of 'cmd' in a few cases.  Also clear up some
unused variables.

Pointed out by: phk
1999-08-18 22:14:24 +00:00
Matthew N. Dodd
b2864868b3 SIOCSIFADDR, SIOCGIFADDR, and SIOCSIFMTU are implemented in
sys/net/if_ethersubr.c:ether_ioctl().  Drivers need not implement generic
behavior.

PR: kern/12126
Submitted by: in part by Boris Popov <bp@butya.kz>
1999-08-18 06:12:00 +00:00
Dag-Erling Smørgrav
6b5ca0d83e Rename bpfilter to bpf. 1999-07-06 19:23:32 +00:00
Bruce Evans
c151de316a Fixed 10 out of 40 lines of -Wcast-qual warnings/errors. 3 lines were
for old confusion of `volatile char *' with `volatile caddr_t'.  7 lines
were for not being careful about aligning pointers to volatiles.
1999-05-13 12:21:41 +00:00
Matthew Dillon
0a5e03dda5 Fix warnings in preparation for adding -Wall -Wcast-qual to the
kernel compile
1999-01-28 01:59:53 +00:00
Archie Cobbs
bd3d61e39f Eliminate compiler warning. 1998-12-10 01:52:16 +00:00
Bruce Evans
fe310de802 Initialize isa_devtab entries for interrupt handlers in individual
device drivers, not in ioconf.c.  Use a different hack in isa_device.h
so that a new config(8) is not required yet.

pc98 parts approved by: kato
1998-10-22 05:58:45 +00:00
Bruce Evans
b97fc94873 Use [u]intptr_t instead of [unsigned] long to convert and/or represent
pointers.

This finishes fixing conversions between pointers and integers of
possibly different sizes in GENERIC.
1998-08-10 17:21:49 +00:00
Bruce Evans
c41141b002 Fixed the formatting of some tables (mainly the one produced by ps
in ddb) which I broke by changing %8[l]x to %8p.  Hacked the central
printf routine to not add an "0x" prefix for %p formats if the field
width is nonzero.  The tables are still horribly misformatted on
64-bit machines.

Use %p instead of %8p to print pointers when the field width isn't
important.
1998-08-10 14:27:34 +00:00
Bruce Evans
9bffbcd4f5 Fixed printf format errors (only 1 left in GENERIC now). 1998-07-13 09:53:11 +00:00
Doug Rabson
ecbb00a262 This commit fixes various 64bit portability problems required for
FreeBSD/alpha.  The most significant item is to change the command
argument to ioctl functions from int to u_long.  This change brings us
inline with various other BSD versions.  Driver writers may like to
use (__FreeBSD_version == 300003) to detect this change.

The prototype FreeBSD/alpha machdep will follow in a couple of days
time.
1998-06-07 17:13:14 +00:00
Bruce Evans
c1087c1324 Support compiling with `gcc -ansi'. 1998-04-15 17:47:40 +00:00
Bruce Evans
3c1300a6b3 Removed unused #includes. 1998-03-28 13:25:01 +00:00
Eivind Eklund
303b270b0a Staticize. 1998-02-09 06:11:36 +00:00
Eivind Eklund
1d5e9e2255 Make INET a proper option.
This will not make any of object files that LINT create change; there
might be differences with INET disabled, but hardly anything compiled
before without INET anyway.  Now the 'obvious' things will give a
proper error if compiled without inet - ipx_ip, ipfw, tcp_debug.  The
only thing that _should_ work (but can't be made to compile reasonably
easily) is sppp :-(

This commit move struct arpcom from <netinet/if_ether.h> to
<net/if_arp.h>.
1998-01-08 23:42:31 +00:00
Eivind Eklund
430df5f4b7 Throw options IPX, IPXIP and IPTUNNEL into opt_ipx.h.
The #ifdef IPXIP in netipx/ipx_if.h is OK (used from ipx_usrreq.c and
ifconfig.c only).

I also fixed a typo IPXTUNNEL -> IPTUNNEL (and #ifdef'ed out the code
inside, as it never could have compiled - doh.)
1997-12-15 20:31:25 +00:00
Joerg Wunsch
3529601895 Hide a silly ``unknown board type'' message behind bootverbose. The
``ie0: not found'' message is sufficient as a default.
1997-10-15 10:09:24 +00:00
Justin T. Gibbs
02a199102d aha1542.c aic6360.c cy.c fd.c ft.c
if_ie.c if_wl.c if_zp.c isa.c isa_device.h
labpc.c mcd.c ncr5380.c scd.c seagate.c si.c
sio.c tw.c ultra14f.c wcd.c wd.c:

	Update for changes in the callout interface.

apic_vector.s icu_vector.s ipl.s ipl_funcs.c:

	Add CAM software/hardware interrupt support.
1997-09-21 21:41:49 +00:00
Bruce Evans
4d1d4912ae Added used #include - don't depend on <sys/mbuf.h> including
<sys/malloc.h> (unless we only use the bogusly shared M*WAIT flags).
1997-09-02 01:19:47 +00:00
Bruce Evans
f71d35e402 Removed unused #includes. 1997-07-20 14:10:18 +00:00
Justin T. Gibbs
374114db56 KNF cleanup. 1997-06-27 19:36:27 +00:00
Justin T. Gibbs
cc80aa3972 Several bug fixes for the ee16 support from Richard Straka:
1) Adjust NFRAMES from 16 to 8 per 16k of memory.
2) Acknowledge interrupts to the card early in the interrupt
   handler before processing the event that caused the interrupt.
   This frees the card to process addtional events instead of
   waiting for the driver to finish handling events.
3) Changed the initialization of the transmit buffers to be a
   loop so that the number of buffers can be more easily changed.
4) Moved the code to take the adapter out of loop back mode to just
   before we enable the receiver.

I also made the driver dynamically size its resource arrays at attach
time so that we can take full advantage of adapters with more than 16k
of memory.

Richard has some other changes he's working on to improve performance,
but this should get ee16 support working reliably again.

Thanks to Wes Santee <wes@bogon.net> for testing these patches.

Submitted by: Richard Straka <straka@user1.inficad.com>
1997-05-21 18:26:09 +00:00
Justin T. Gibbs
3db6c00e72 New name for the EtherExpress register file. 1997-04-14 00:40:04 +00:00
Justin T. Gibbs
5a2037874f Add Intel EtherExpress16 support into the ie driver, removing the need
for the ix driver.

Add a shutdown hook that resets the etherexpress so that Windoze can find
the card after a warm boot.

Submitted by: Aaron Smith <aaron@tau.veritas.com>
Obtained From: NetBSD
1997-04-14 00:37:53 +00:00
Bruce Evans
51a534883a Don't include <sys/ioctl.h> in the kernel. Stage 2: include
<sys/sockio.h> instead of <sys/ioctl.h> in network files.
1997-03-24 11:33:46 +00:00
Peter Wemm
6875d25465 Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.
1997-02-22 09:48:43 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Garrett Wollman
477180fbc8 Use the new if_multiaddrs list for multicast addresses rather than the
previous hackery involving struct in_ifaddr and arpcom.  Get rid of the
abominable multi_kludge.  Update all network interfaces to use the
new machanism.  Distressingly few Ethernet drivers program the multicast
filter properly (assuming the hardware has one, which it usually does).
1997-01-13 21:26:53 +00:00
Poul-Henning Kamp
bfbb029d87 Remove devconf, it never grew up to be of any use. 1996-09-06 23:09:20 +00:00
Bruce Evans
c673fe98d7 Added #include of <machine/md_var.h>. This will be needed when
some declarations are moved from <machine/cpufunc.h> to better
places.
1996-06-25 20:31:01 +00:00
Bruce Evans
9b2b0822b7 Removed unused #includes of <i386/isa/icu.h> and <i386/isa/icu.h>. icu.h
is only used by the icu support modules and by a few drivers that know
too much about the icu (most only use it to convert `n' to `IRQn').  isa.h
is only used by ioconf.c and by a few drivers that know too much about
isa addresses (a few have to, because config is deficient).
1996-06-18 01:22:40 +00:00
Garrett Wollman
9b44ff2214 Clean up Ethernet drivers:
- fill in and use ifp->if_softc
	- use if_bpf rather than private cookie variables
	- change bpf interface to take advantage of this
	- call ether_ifattach() directly from Ethernet drivers
	- delete kludge in if_attach() that did this indirectly
1996-02-06 18:51:28 +00:00
Poul-Henning Kamp
18b7be4064 The last part of the ether_sprint -> %6D change.
Sorry for the delay.
(%D is for hexdumping.)
1996-01-26 09:29:29 +00:00
Poul-Henning Kamp
6f4e0beb7e Staticize and cleanup. 1995-12-10 13:40:44 +00:00
David Greenman
4a5f1499b0 all:
Removed ifnet.if_init and ifnet.if_reset as they are generally unused.
Change the parameter passed to if_watchdog to be a ifnet * rather than
a unit number. All of this is an attempt to move toward not needing an
array of softc pointers (which is usually static in size) to point to
the driver softc.

if_ed.c:
Changed some of the argument passing to some functions to make a little
more sense.

if_ep.c, if_vx.c:
Killed completely bogus use of if_timer. It was being set in such a way
that the interface was being reset once per second (blech!).
1995-12-05 02:01:59 +00:00
Bruce Evans
980dc8bb6e Fixed the type of a timeout function.
Added prototypes.
1995-11-18 08:35:49 +00:00
Julian Elischer
cc6a66f20e Reviewed by: julian and jhay@mikom.csir.co.za
Submitted by:	Mike Mitchell, supervisor@alb.asctmd.com

This is a bulk mport of Mike's IPX/SPX protocol stacks and all the
related gunf that goes with it..
it is not guaranteed to work 100% correctly at this time
but as we had several people trying to work on it
I figured it would be better to get it checked in so
they could all get teh same thing to work on..

Mikes been using it for a year or so
but on 2.0

more changes and stuff will be merged in from other developers now that this is in.

Mike Mitchell, Network Engineer
AMTECH Systems Corporation, Technology and Manufacturing
8600 Jefferson Street, Albuquerque, New Mexico 87113 (505) 856-8000
supervisor@alb.asctmd.com
1995-10-26 20:31:59 +00:00
Garrett Wollman
233b60cec4 Say goodbye to IFF_NOTRAILERS. Support for trailers was officially
dropped for 4.4, but for some reason this flag lived on.  (Until
today, that is.)
1995-10-13 19:48:06 +00:00
Bruce Evans
2e69f359d1 Fix benign type mismatches in isa interrupt handlers. Many returned int
instead of void.
1995-09-19 18:55:37 +00:00
Bruce Evans
bf25be48a5 Make everything except the unsupported network sources compile cleanly
with -Wnested-externs.
1995-08-16 16:14:28 +00:00
Rodney W. Grimes
9b2e535452 Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
Garrett Wollman
6c0081e92b Add a class field to devconf and mst drivers.
For those where it was easy, drivers were also fixed to call
dev_attach() during probe rather than attach (in keeping with the
new design articulated in a mail message five months ago).  For
a few that were really easy, correct state tracking was added as well.
The `fd' driver was fixed to correctly fill in the description.
The CPU identify code was fixed to attach a `cpu' device.  The code
was also massively reordered to fill in cpu_model with somethingremotely
resembling what identifycpu() prints out.  A few bytes saved by using
%b to format the features list rather than lots of ifs.
1995-04-12 20:48:13 +00:00
Bruce Evans
3aa12267a5 Add and move declarations to fix all of the warnings from `gcc -Wimplicit'
(except in netccitt, netiso and netns) that I didn't notice when I fixed
"all" such warnings before.
1995-03-28 07:58:53 +00:00
David Greenman
edf8a81561 Removed redundant newlines that were in some panic strings. 1995-03-19 14:29:26 +00:00
Garrett Wollman
dd2e410221 Move ARP interface initialization into if_ether.c:arp_ifinit(). 1994-12-22 21:56:22 +00:00
David Greenman
307d80be7a Moved conversion of ether_type to host byte order out of ethernet drivers
and into ether_input(). It was silly to have bpf want this one way and
ether_input want it another way. Ripped out trailer support from the few
remaining drivers that still had it.
1994-11-24 14:29:38 +00:00
Poul-Henning Kamp
47c3575419 Fixed a couple of wrong printfs (too few arguments supplied). Also zapped
a couple of unused vars at the same time.  Added a #include <sys/proc.h>
to isa.c while here anyway.
1994-10-26 00:16:20 +00:00
Garrett Wollman
2f86936a07 Finished device configuration database work for all ISA devices (except `ze')
and all SCSI devices (except that it's not done quite the way I want).  New
information added includes:

-	A text description of the device
-	A ``state''---unknown, unconfigured, idle, or busy
-	A generic parent device (with support in the m.i. code)
-	An interrupt mask type field (which will hopefully go away) so that
.	  ``doconfig'' can be written

This requires a new version of the `lsdev' program as well (next commit).
1994-10-23 21:28:03 +00:00
Garrett Wollman
f1d8109335 Add support for devconf to a large number of device drivers, and do
the right thing in dev_goawayall() when kdc_goaway is null.
1994-10-19 01:59:11 +00:00
Garrett Wollman
9c50c38bb5 unifdef -DMULTICAST, since multicast support is always enabled in 4.4. 1994-09-07 03:34:12 +00:00
Andreas Schulz
a97f37a9db Reviewed by:
Add initialization to the if_ie driver for the Micom Interlan NI5210 card.
This is a very old 82586 based card with only 8Kb or 16Kb on board memory.
Also only 8-bit wide instead of 16-bit like the AT& or 3COM card.
Warning: this thing is only tested so far that it detects all bits
correctly but is not yet on an ethernet. Will do that tomorrow.
1994-09-05 22:28:31 +00:00
Andreas Schulz
7dfcb69ffc Reviewed by:
Submitted by:
Put the printf("can't map 3c507 ram.. into an ifdef DEBUG. This will
confuse only normal users and the ie0 found/not found is sufficient.
1994-09-02 23:23:57 +00:00
Andreas Schulz
3d76654d68 Reviewed by:
Submitted by:
1) if_ie.c:
	Changed a printf and put a space in it. Formerly the "<3C507>"
	confused the syslog. He tried to see that as the priority to
	log that message.

2) isa_device.h:
	Changed the iobase variable from short to u_short. EISA
	Adresses can go up to 0xf000 and the sign extension doesn't
	look good in the probe output. Example:
	ep1 at 0xffff8000-0xffff8000f is not good :-), i like more a
	ep1 at 0x8000-0x8000f.

3) isa.c:
	Changed a string constant from "probe" to "prob", it gets
	later already an "ed" tagged on the end.
1994-09-02 22:13:34 +00:00
Garrett Wollman
293c5accf0 Add Charles Martin Hannum to copyright notice so he can stop whining and
find something useful to do other than taking credit for other people's
work.  Also make the 3C507 bits match the indentation style of the rest of
the code.
1994-08-25 20:16:59 +00:00
Andreas Schulz
411c7a8786 Reviewed by:
Submitted by:
Add the 3com 3C507 card to the if_ie.c driver. The files elink.c and
elink.h are helding routines that are shared between the 3C507 and the
3C509/3C579. if_ie507.h are constant declarations unique to the 3C507.
The code is based on the NetBSD driver if_ie.c donated to NetBSD by
Rafal Boni and then modified by Charles Hannum.
1994-08-24 22:32:44 +00:00
Garrett Wollman
f540b1065a Change all #includes to follow the current Berkeley style. Some of these
``changes'' are actually not changes at all, but CVS sometimes has trouble
telling the difference.

This also includes support for second-directory compiles.  This is not
quite complete yet, as `config' doesn't yet do the right thing.  You can
still make it work trivially, however, by doing the following:

rm /sys/compile
mkdir /usr/obj/sys/compile
ln -s M-. /sys/compile
cd /sys/i386/conf
config MYKERNEL
cd ../../compile/MYKERNEL
ln -s /sys @
rm machine
ln -s @/i386/include machine
make depend
make
1994-08-13 03:50:34 +00:00
David Greenman
6979fee553 Add missing ifr variable declaration that I forgot when adding MTU
ioctl support.
1994-08-12 06:06:19 +00:00
David Greenman
8867d2f19c Added support for SIOCSIFMTU. 1994-08-08 13:33:16 +00:00
Rodney W. Grimes
fb49e767ba Cast arguments to timeout() to quite compiler warnings. Should we
change all of these to be timeout_funt_t and remove the casts and
typedef?

Remove secound argument (uban) from ifp->if_reset routines since it is now
obsolete.

Reviewed by:	David Greenman
1994-05-27 04:02:10 +00:00
Rodney W. Grimes
d5d6e3f5d0 Fix some references to MIN() and MAX() that have been replaced by min() and
max().
1994-05-26 13:30:20 +00:00
Rodney W. Grimes
26f9a76710 The big 4.4BSD Lite to FreeBSD 2.0.0 (Development) patch.
Reviewed by:	Rodney W. Grimes
Submitted by:	John Dyson and David Greenman
1994-05-25 09:21:21 +00:00
David Greenman
49255f96cb if_ep.c: removed netisr.h, fixed unconverted ep_ac, changed <> into ""
for include files.
if_ed, if_ie, if_is: don't include netisr.h.
1994-02-03 11:51:12 +00:00
Garrett Wollman
381fe1aaf4 Make the LINT kernel compile with -W -Wreturn-type -Wcomment -Werror, and
add same (sans -Werror) to Makefile for future compilations.
1993-11-25 01:38:01 +00:00
Rodney W. Grimes
e191da859f > Gcc2 generates memcpy calls when doing some structure copying in the
> code. As this memcpy generation is done by the compiler it doesn't
> work to have memcpy a macro. Instead I made it a static function that
> calls bcopy.

Okay, I tracked down the d*mn thing that is causing the memcpy to be
emmitted by gcc2.  In the following patch is a fix to eliminate the
one place that was causing gcc to do the memcpy in function ie_readframe
for the ie_recv_frame_desc rfd = *(ie->rframes[num]) structure copy.

I also fixed the code so that the NS (XNS) support would compile with
out error and removed the cruft #define ns_* stuff from the softc
structures (I did this a while back for all the other either drivers)

Removed the $Log$ and all of the old log stuff, that is all kept in
the cvs tree, no need to duplicate it in the file... I'll copy it
into my commit message so that it is all retained, except the
revision numbers are going to get screwed up.

It now compiles cleanly under my LINT kernel...

>  I have not yet tested this on the AT&T fiver cards yet. But, Wollman
> has used it on various other AT&T cards. I'm pretty sure Terry also
> uses this driver.

$Log$ stuff from Garretts original file
 * $Log$
 * Revision 1.32  1993/06/20  15:56:15  wollman
 * Fixed warning message.
 *
 * Revision 1.31  93/06/20  15:52:28  wollman
 * More compilation lint.
 *
 * Revision 1.30  93/06/20  15:48:16  wollman
 * Commented all the rest of the cast-qual warnings.  Might be
 * fixed someday by changing the prototypes of bcopy(), bzero(), etc.
 *
 * Revision 1.29  93/06/20  15:40:13  wollman
 * Started fixing some of the cast-qual warnings (most just commented).
 *
 * Revision 1.28  93/06/12  20:39:14  wollman
 * Changed definition of MK_24 to silence -Wcast-qual.
 *
 * Revision 1.27  93/06/08  17:05:57  wollman
 * Attach routine now returns void.
 *
 * Revision 1.26  93/06/08  16:31:21  wollman
 * Deleted attempt to set watchdog timer, since we don't use it.
 *
 * Revision 1.25  93/04/16  22:15:31  wollman
 * Fixed infinite loop in iestart() which would cause the transmitter
 * to constantly step on the Ethernet, sending the same two packets over
 * and over again.  This crashes the router (really!) and makes other
 * network users very angry.
 *
 * Revision 1.24  93/04/14  23:57:47  wollman
 * Increased transmit buffer size from 1504 to 1512, just in case I don't
 * understand how the MTU is used.
 *
 * Revision 1.23  93/04/14  23:16:19  wollman
 * Fix iestart() so that it only tries to execute a command if one was
 * queued up (oops...).
 *
 * Revision 1.22  93/04/14  23:02:16  wollman
 * Unknown changes.
 *
 * Revision 1.21  93/04/12  18:29:33  wollman
 * Added multiple transmit commands.  Note that they are always queued in
 * pairs (there are only two to begin with), and the I flag is only set
 * on the second one.  This should decrease interrupt activity somewhat.
 *
 * Revision 1.20  93/04/12  15:36:05  wollman
 * Changed setup of config block to take into account difference between
 * StarLAN (10BASE-T) and Ethernet: StarLAN is Manchester, Ethernet is NRZ.
 *
 * Revision 1.19  93/03/23  18:58:44  wollman
 * Raised count of receive buffers from 32 to 48 and included analysis of
 * memory usage in a comment near that definition.
 *
 * Revision 1.18  93/03/18  03:59:53  wollman
 * Last try to get large TCP windows to work...
 *
 * Revision 1.17  93/03/18  03:54:10  wollman
 * Added RNR processing as a part of receive interrupts.  Hopefully this
 * will make everything Just Work now.
 *
 * Revision 1.16  93/03/18  03:23:24  wollman
 * Still having problems with RNR conditions.  Basic problem: say we
 * set TCP window to 16k, which is a semsible value.  Then smart
 * partners will blast 16k to us, of which we can fit 8k minus a bit
 * into our buffers.  (Need to look at that memory map..)  So, we get
 * an RNR interrupt.  The problem is, what do we need to do in this case?
 * The original code doesn't work, but it doesn't hang the system either.
 *
 * Revision 1.15  93/03/18  02:37:00  wollman
 * Disabled watchdog timer.  This gets called from a timeout somewhere,
 * which is running up at softclock.  This is at a higher priority than
 * we are, so we can get interrupted in the process of receiving something
 * by the timer expiration, which is not a nice thing to have happen.
 * Question: how can we keep this functionality, but do it in sync with
 * our interrupts?  (Ugh!)
 *
 * Revision 1.14  93/03/18  02:35:46  wollman
 * Fixed some more problems with receive code---it works!
 *
 * Revision 1.13  93/03/17  20:15:59  wollman
 * Think we fixed the serious (showstopper) bugs in 1.12.
 *
 * Revision 1.12  93/03/15  17:45:39  wollman
 * Changed filtering logic dramatically to avoid the unnecessary copyin
 * for BPF or multicast routing when the packet is not for us.  (We
 * have to run in promiscuous mode in this case.)  We still need to
 * deal with the problem of allocating one mbuf per receive buffer;
 * we should be able to get away with a single mbuf for all reasonable
 * incoming packets, and using an mbuf cluster will help avoid unnecessary
 * copying of data.
 *
 * Revision 1.11  93/01/30  20:23:15  wollman
 * Fiddled with reset code to hopefully make it work better when the
 * watchdog timer expires.  Question: why does it make a difference that
 * we do the same thing through ieioctl() as we were doing before.  The
 * old code, when iereset() was called, the receive unit would completely
 * die.  But, a cycle of ifconfig ie0 down ; ifconfig ie0 up' would bring
 * things back to normal.  So, we try to mimic that now.  Grrr...
 *
 * Revision 1.10  93/01/29  17:26:50  wollman
 * Finally fixed multicast routing/BPF mb_map full problem!!!!
 * It turned out that, when we received a packet not for us, we
 * would just return from ie_readframe(), *WITHOUT* freeing the
 * mbuf that the packet was in.  So, when running in promiscuous
 * mode (i.e., multicast routing or BPF without -p), we would have
 * (on our extremely busy subnet 4) a memory leak of epic proportions.
 *
 * We now hold on to a single mbuf chain allocated in this way,
 * and the next time a packet is read, we free it.  Also, the
 * next time a packet is transmitted, we free it.  This way,
 * we never lose more than 6 mbufs total (and on average more like
 * 3).
 *
 * Revision 1.9  93/01/23  14:22:21  wollman
 * Added some StarLAN Fiber modifications from L. Jonas Olsson.
 *
 * Revision 1.8  93/01/23  14:02:34  wollman
 * Added support for IP multicasting.
 *
 * Revision 1.7  92/11/21  17:51:59  wollman
 * Added StarLAN Fiber version point to my driver.
 *
 * Revision 1.6  92/11/20  18:21:45  wollman
 * Fixed documentation, made out-of-mbuf condition an error.
 *
 * Revision 1.5  92/11/20  18:14:02  wollman
 * Move change of ethertype to host byte order so that it's after
 * bpf_mtap.  Hopefully, this will allow us to listen to incoming
 * IP packets.
 *
 * Revision 1.4  92/11/20  18:11:00  wollman
 * Added code to drop packets when we run out of mbufs rather than
 * panicking.  This should alleviate the problems observed when using tcpdump.
 *
 * Revision 1.3  92/11/14  14:12:40  wollman
 * Added BPF support code.
 *
 * Revision 1.2  92/11/14  13:30:26  wollman
 * Added RCS keywords
 *
1993-10-12 06:52:34 +00:00