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History log of /src/sys/arch/next68k/dev/mb8795.c
RevisionDateAuthorComments
 1.71  20-Dec-2023  thorpej Remove unnecessary <sys/malloc.h> include.
 1.70  03-Feb-2023  tsutsui Add proper rnd_add_uint32(9) calls to next68k xe(4) driver.
 1.69  18-Sep-2022  thorpej Eliminate use of IFF_OACTIVE. (It was not being used correctly here in
any case.)
 1.68  17-Mar-2022  andvar revert broken to borken, it is used spelling in BSD and "tastes better that way".
 1.67  16-Mar-2022  andvar s/paniced/panicked/ and s/borken/broken/ in comments.
 1.66  29-Jan-2020  thorpej Adopt <net/if_stats.h>.
 1.65  29-May-2019  msaitoh branches: 1.65.4;
Even if we don't use MII(4), use the common path of SIOC[GS]IFMEDIA in
sys/net/if_ethersubr.c if we can.
- Add ec_ifmedia into struct ethercom.
- ec_mii in struct ethercom is kept and used as it is. It might be used in
future. Note that some Ethernet drivers which _DOESN'T_ use mii(4) use
ec_mii for keeping the if_media. Those should be changed in future.
 1.64  29-May-2019  msaitoh KNF. No functional change.
 1.63  29-May-2019  msaitoh Whitespace fix. No functional change.
 1.62  24-Apr-2019  msaitoh KNF. No functional change.
 1.61  05-Feb-2019  msaitoh Remove very old IFF_NOTRAILERS flag.
 1.60  26-Jun-2018  msaitoh branches: 1.60.2;
Implement the BPF direction filter (BIOC[GS]DIRECTION). It provides backward
compatibility with BIOC[GS]SEESENT ioctl. The userland interface is the same
as FreeBSD.

This change also fixes a bug that the direction is misunderstand on some
environment by passing the direction to bpf_mtap*() instead of checking
m->m_pkthdr.rcvif.
 1.59  22-Jun-2018  msaitoh It's not required to include net/bpfdesc.h. Remove it.
 1.58  31-Mar-2017  msaitoh branches: 1.58.6; 1.58.12;
Remove extra 0x. This bug was added when replacing bitmask_snprintf(9) with
snprintb(3) (in between NetBSD 5 and 6). Old bitmask_snprint(9) didn't add
0x" automatically for hexadecimal value, so old code used it with "0x%s".
 1.57  15-Dec-2016  ozaki-r branches: 1.57.2;
Move bpf_mtap and if_ipackets++ on Rx of each driver to percpuq if_input

The benefits of the change are:
- We can reduce codes
- We can provide the same behavior between drivers
- Where/When if_ipackets is counted up
- Note that some drivers still update packet statistics in their own
way (periodical update)
- Moved bpf_mtap run in softint
- This makes it easy to MP-ify bpf

Proposed on tech-kern and tech-net
 1.56  10-Jun-2016  ozaki-r branches: 1.56.2;
Introduce m_set_rcvif and m_reset_rcvif

The API is used to set (or reset) a received interface of a mbuf.
They are counterpart of m_get_rcvif, which will come in another
commit, hide internal of rcvif operation, and reduce the diff of
the upcoming change.

No functional change.
 1.55  09-Feb-2016  ozaki-r Introduce softint-based if_input

This change intends to run the whole network stack in softint context
(or normal LWP), not hardware interrupt context. Note that the work is
still incomplete by this change; to that end, we also have to softint-ify
if_link_state_change (and bpf) which can still run in hardware interrupt.

This change softint-ifies at ifp->if_input that is called from
each device driver (and ieee80211_input) to ensure Layer 2 runs
in softint (e.g., ether_input and bridge_input). To this end,
we provide a framework (called percpuq) that utlizes softint(9)
and percpu ifqueues. With this patch, rxintr of most drivers just
queues received packets and schedules a softint, and the softint
dequeues packets and does rest packet processing.

To minimize changes to each driver, percpuq is allocated in struct
ifnet for now and that is initialized by default (in if_attach).
We probably have to move percpuq to softc of each driver, but it's
future work. At this point, only wm(4) has percpuq in its softc
as a reference implementation.

Additional information including performance numbers can be found
in the thread at tech-kern@ and tech-net@:
http://mail-index.netbsd.org/tech-kern/2016/01/14/msg019997.html

Acknowledgment: riastradh@ greatly helped this work.
Thank you very much!
 1.54  13-Apr-2015  riastradh MD rnd.h cleanups. Please let me know if I broke anything!
 1.53  10-Aug-2014  tls branches: 1.53.4;
Merge tls-earlyentropy branch into HEAD.
 1.52  24-Mar-2014  christos branches: 1.52.2;
- use cpu_{g,s}etmodel
- fix unused
 1.51  27-Oct-2012  chs branches: 1.51.2;
split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.
 1.50  02-Feb-2012  tls branches: 1.50.6;
Entropy-pool implementation move and cleanup.

1) Move core entropy-pool code and source/sink/sample management code
to sys/kern from sys/dev.

2) Remove use of NRND as test for presence of entropy-pool code throughout
source tree.

3) Remove use of RND_ENABLED in device drivers as microoptimization to
avoid expensive operations on disabled entropy sources; make the
rnd_add calls do this directly so all callers benefit.

4) Fix bug in recent rnd_add_data()/rnd_add_uint32() changes that might
have lead to slight entropy overestimation for some sources.

5) Add new source types for environmental sensors, power sensors, VM
system events, and skew between clocks, with a sample implementation
for each.

ok releng to go in before the branch due to the difficulty of later
pullup (widespread #ifdef removal and moved files). Tested with release
builds on amd64 and evbarm and live testing on amd64.
 1.49  24-Apr-2010  dbj branches: 1.49.8; 1.49.12;
switch from 4 clause to 2 clause BSD license.
 1.48  05-Apr-2010  joerg Push the bpf_ops usage back into bpf.h. Push the common ifp->if_bpf
check into the inline functions as well the fourth argument for
bpf_attach.
 1.47  19-Jan-2010  pooka branches: 1.47.2; 1.47.4;
Redefine bpf linkage through an always present op vector, i.e.
#if NBPFILTER is no longer required in the client. This change
doesn't yet add support for loading bpf as a module, since drivers
can register before bpf is attached. However, callers of bpf can
now be modularized.

Dynamically loadable bpf could probably be done fairly easily with
coordination from the stub driver and the real driver by registering
attachments in the stub before the real driver is loaded and doing
a handoff. ... and I'm not going to ponder the depths of unload
here.

Tested with i386/MONOLITHIC, modified MONOLITHIC without bpf and rump.
 1.46  26-Oct-2009  cegger kill extra whitespaces
reviewed by tsutsui@
 1.45  18-Mar-2009  cegger bcopy -> memcpy
 1.44  16-Dec-2008  christos branches: 1.44.2;
replace bitmask_snprintf(9) with snprintb(3)
 1.43  07-Nov-2008  dyoung *** Summary ***

When a link-layer address changes (e.g., ifconfig ex0 link
02:de:ad:be:ef:02 active), send a gratuitous ARP and/or a Neighbor
Advertisement to update the network-/link-layer address bindings
on our LAN peers.

Refuse a change of ethernet address to the address 00:00:00:00:00:00
or to any multicast/broadcast address. (Thanks matt@.)

Reorder ifnet ioctl operations so that driver ioctls may inherit
the functions of their "class"---ether_ioctl(), fddi_ioctl(), et
cetera---and the class ioctls may inherit from the generic ioctl,
ifioctl_common(), but both driver- and class-ioctls may override
the generic behavior. Make network drivers share more code.

Distinguish a "factory" link-layer address from others for the
purposes of both protecting that address from deletion and computing
EUI64.

Return consistent, appropriate error codes from network drivers.

Improve readability. KNF.

*** Details ***

In if_attach(), always initialize the interface ioctl routine,
ifnet->if_ioctl, if the driver has not already initialized it.
Delete if_ioctl == NULL tests everywhere else, because it cannot
happen.

In the ioctl routines of network interfaces, inherit common ioctl
behaviors by calling either ifioctl_common() or whichever ioctl
routine is appropriate for the class of interface---e.g., ether_ioctl()
for ethernets.

Stop (ab)using SIOCSIFADDR and start to use SIOCINITIFADDR. In
the user->kernel interface, SIOCSIFADDR's argument was an ifreq,
but on the protocol->ifnet interface, SIOCSIFADDR's argument was
an ifaddr. That was confusing, and it would work against me as I
make it possible for a network interface to overload most ioctls.
On the protocol->ifnet interface, replace SIOCSIFADDR with
SIOCINITIFADDR. In ifioctl(), return EPERM if userland tries to
invoke SIOCINITIFADDR.

In ifioctl(), give the interface the first shot at handling most
interface ioctls, and give the protocol the second shot, instead
of the other way around. Finally, let compatibility code (COMPAT_OSOCK)
take a shot.

Pull device initialization out of switch statements under
SIOCINITIFADDR. For example, pull ..._init() out of any switch
statement that looks like this:

switch (...->sa_family) {
case ...:
..._init();
...
break;
...
default:
..._init();
...
break;
}

Rewrite many if-else clauses that handle all permutations of IFF_UP
and IFF_RUNNING to use a switch statement,

switch (x & (IFF_UP|IFF_RUNNING)) {
case 0:
...
break;
case IFF_RUNNING:
...
break;
case IFF_UP:
...
break;
case IFF_UP|IFF_RUNNING:
...
break;
}

unifdef lots of code containing #ifdef FreeBSD, #ifdef NetBSD, and
#ifdef SIOCSIFMTU, especially in fwip(4) and in ndis(4).

In ipw(4), remove an if_set_sadl() call that is out of place.

In nfe(4), reuse the jumbo MTU logic in ether_ioctl().

Let ethernets register a callback for setting h/w state such as
promiscuous mode and the multicast filter in accord with a change
in the if_flags: ether_set_ifflags_cb() registers a callback that
returns ENETRESET if the caller should reset the ethernet by calling
if_init(), 0 on success, != 0 on failure. Pull common code from
ex(4), gem(4), nfe(4), sip(4), tlp(4), vge(4) into ether_ioctl(),
and register if_flags callbacks for those drivers.

Return ENOTTY instead of EINVAL for inappropriate ioctls. In
zyd(4), use ENXIO instead of ENOTTY to indicate that the device is
not any longer attached.

Add to if_set_sadl() a boolean 'factory' argument that indicates
whether a link-layer address was assigned by the factory or some
other source. In a comment, recommend using the factory address
for generating an EUI64, and update in6_get_hw_ifid() to prefer a
factory address to any other link-layer address.

Add a routing message, RTM_LLINFO_UPD, that tells protocols to
update the binding of network-layer addresses to link-layer addresses.
Implement this message in IPv4 and IPv6 by sending a gratuitous
ARP or a neighbor advertisement, respectively. Generate RTM_LLINFO_UPD
messages on a change of an interface's link-layer address.

In ether_ioctl(), do not let SIOCALIFADDR set a link-layer address
that is broadcast/multicast or equal to 00:00:00:00:00:00.

Make ether_ioctl() call ifioctl_common() to handle ioctls that it
does not understand.

In gif(4), initialize if_softc and use it, instead of assuming that
the gif_softc and ifp overlap.

Let ifioctl_common() handle SIOCGIFADDR.

Sprinkle rtcache_invariants(), which checks on DIAGNOSTIC kernels
that certain invariants on a struct route are satisfied.

In agr(4), rewrite agr_ioctl_filter() to be a bit more explicit
about the ioctls that we do not allow on an agr(4) member interface.

bzero -> memset. Delete unnecessary casts to void *. Use
sockaddr_in_init() and sockaddr_in6_init(). Compare pointers with
NULL instead of "testing truth". Replace some instances of (type
*)0 with NULL. Change some K&R prototypes to ANSI C, and join
lines.
 1.42  17-Oct-2007  garbled branches: 1.42.16; 1.42.20; 1.42.26; 1.42.28;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.
 1.41  01-Sep-2007  dyoung Change a bazillion occurrences of code resembling this,

error = (cmd == SIOCADDMULTI) ?
ether_addmulti(ifr, &sc->sc_ec) :
ether_delmulti(ifr, &sc->sc_ec);

if (error == ENETRESET) {

to this,

if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) {

which does the same thing.

(A bazillion is a very large number. This seems to make the i386
ALL kernel smaller by 3kB to 4kB.)

Use ifreq_getaddr() twice in es(4).

Whitespace nits.
 1.40  04-Mar-2007  christos branches: 1.40.2; 1.40.10; 1.40.14; 1.40.18; 1.40.20;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.
 1.39  07-Sep-2006  dogcow branches: 1.39.8;
remove more vestiges of CCITT, LLC, HDLC, NS, and NSIP.
 1.38  11-Dec-2005  christos branches: 1.38.4; 1.38.8;
merge ktrace-lwp.
 1.37  17-May-2005  christos branches: 1.37.2;
Yes, it was a cool trick >20 years ago to use "0123456789abcdef"[a] to
implement, xtoa(), but I think defining the samestring 50 times is a bit
too much. Defined HEXDIGITS and hexdigits in subr_prf.c and use it...
 1.36  30-Jan-2005  thorpej Eliminate use of M_HASFCS.
 1.35  19-Jan-2005  chs branches: 1.35.2;
de-__P, remove register, ansify.
 1.34  30-Oct-2004  thorpej branches: 1.34.4;
When adding/deleting multicast addresses, only whack the address
filter if the interface is marked RUNNING.

Fixes kern/27678.
 1.33  15-Jul-2003  lukem branches: 1.33.4;
__KERNEL_RCSID()
 1.32  03-May-2003  wiz branches: 1.32.2;
DMA, not dma nor Dma.
 1.31  27-Sep-2002  provos remove trailing \n in panic(). approved perry.
 1.30  11-Sep-2002  mycroft Don't blindly receive all multicast packets just because we're on a turbo.
Pay lip service to making promiscuous mode work.
 1.29  11-Sep-2002  mycroft Remove straggling NEXT_TURBO #ifdefs.
 1.28  11-Sep-2002  mycroft Comprehensive patches from Christian Limpach:
* Fix problems with the DMA and SCSI drivers.
* Make turbo machines sort of work.
Additional fixes from me:
* Determine if we're a turbo at boot time, by looking at the ROM machine type.
* Set the display size correctly (1120 pixels wide, but padded to 1152 only on
non-turbo machines).
Caveats:
* SCSI doesn't work on the turbo (or at least it blows chunks with no devices
attached).
* Media selection doesn't work on the turbo (the BMAP stuff doesn't exist on
turbo machines).
* The boot block is prone to timing out.
 1.27  11-Jul-2002  christos Apply patches from Christian Limpach:

- NeXT label reading support
- SCSI dma fixes
- media support for if_xe.c

Some of these need more cleanup, but at least make SCSI support usable on
the NeXT.
 1.26  20-May-2002  jdolecek branches: 1.26.2;
Fix race condition between the DMA handler (which gets called
on spldma), and rest of driver/network code (which runs on splnet) in way
if->if_snd queue is accessed. Solve by using intermediate queue.

Problem found, and fix provided by Christian Limpach in port-next68k/16798
 1.25  18-May-2002  jdolecek Various whitespace fixes, and turn 'No packet to start' message to DPRINTF().
Mostly inspired by Christian Limpach's patch in port-next68k/16978.
 1.24  16-Jun-2001  dbj branches: 1.24.2; 1.24.8; 1.24.16;
fix handling of transmit length calculation so we now handle full length xmits
 1.23  13-May-2001  chs turn on printf format-string checking and -Werror. fix all warnings.
 1.22  16-Apr-2001  dbj add receive ethernet bpf tap
keep receive ethernet crc and set M_HASFCS
change bus_dma MD fields to keep xfer_len for entire map
instead of per segment
turn off automatic dma restarts in preparation for changing
scsi driver to handle them.
add dma debugging routines to keep history of dma states
tweak checking for unusual dma limit register
 1.21  02-Apr-2001  dbj removed unused mediachange routines
changed ethernet receive to handle unexpected dma shutdowns
 1.20  14-Jan-2001  thorpej branches: 1.20.2;
Use splnet() to block network interrupts, not splimp().
 1.19  15-Nov-2000  thorpej Move bpfattach()/bpfdetach() calls into ether_ifattach()/ether_ifdetach().
 1.18  09-Aug-2000  tv %b -> bitmask_snprintf()
 1.17  29-Aug-1999  dbj branches: 1.17.2; 1.17.12;
made debugging printfs switchable at run time via the "xe_debug" variable.
 1.16  28-Aug-1999  dbj discovered the purpose of another bit in the dma control register.
DMACSR_READ is now a CSR status bit which can be used to know if current transfer is
from cpu to device.
the old DMACSR_READ bit is renamed DMACSR_SETREAD. This is a control bit that tells
the dma transfer to be from cpu to device.
 1.15  05-Aug-1999  dbj changed dma segment field "ds_read_len" to "ds_xfer_len" since it is valid for
either read or write transfers.
 1.14  03-Aug-1999  dbj resync bus_dma functions with current alpha versions.
added a field to a dma segment to return the actual length of that segment that
was successfully transferred.
 1.13  03-Aug-1999  dbj removed unused variable.
 1.12  23-Jun-1999  abs In xxx_mediachange(), if there is no callback to the front-end, just
return 0 instead of EINVAL. In this case, there will only be one media
type, and the upper-level if_media code will ensure that the user is
setting to that type.
This matches changes Jason made a while back to sys/dev/ic/lance.c
 1.11  18-May-1999  thorpej Rework layer 2 protocol input routines. Instead of calling e.g. ether_input()
directly, call the function pointer (*if_input)(ifp, m). The input routine
expects the packet header to be at the head of the packet, and will adjust
as necessary. Privatize the layer 2 input and output routines, allowing
*_ifattach() to set them up as appropriate.
 1.10  28-Feb-1999  explorer branches: 1.10.4;
Update to slightly altered rnd_attach_source() api
 1.9  27-Dec-1998  dbj After some experimentation, now allow dma start alignment to be 4.
Removed separate alignment constant for ethernet since it appears to
be unnecessary.
 1.8  19-Dec-1998  dbj Revamped DMA interface to unify chaining and non-chaining dma sequences.
Updated ethernet driver to work with new interface.
Continue work on esp driver.
 1.7  19-Jul-1998  dbj Commented out some bus_dma code, until I can fix.
(bus_dma.c needs sync with alpha port!)
Continued progress on scsi driver.
A couple of other compiler warning level of tweaks.
 1.6  11-Jul-1998  dbj Reserved 8k at top of memory for ROM. This fixes warp9c boot problems.
changed ethernet panic to a warning when out of DMA buffers. This allows
resuming if you sit in ddb too long.
 1.5  05-Jul-1998  jonathan defopt NS, NSIP.
 1.4  05-Jul-1998  jonathan defopt LLC
 1.3  05-Jul-1998  jonathan defopt CCITT.
 1.2  05-Jul-1998  jonathan defopt INET, NETATALK.
 1.1  09-Jun-1998  dbj branches: 1.1.1;
Initial revision
 1.1.1.1  09-Jun-1998  dbj Initial import of NetBSD/next68k.
 1.10.4.2  01-Jul-1999  thorpej Sync w/ -current.
 1.10.4.1  21-Jun-1999  thorpej Sync w/ -current.
 1.17.12.2  16-Jun-2001  he Pull up revision 1.24 (via patch, requested by dbj):
Fix bugs related to calculation of transmit packet length and
allow unaligned pointers in bus_dmamap_sync(). Fixes problems
related to full-size ethernet packets, as reported in PR#13212.
 1.17.12.1  05-Apr-2001  he Apply patch (requested by dbj):
Truncate oversize packets caused by ethernet dma overruns.
 1.17.2.4  21-Apr-2001  bouyer Sync with HEAD
 1.17.2.3  18-Jan-2001  bouyer Sync with head (for UBC+NFS fixes, mostly).
 1.17.2.2  22-Nov-2000  bouyer Sync with HEAD.
 1.17.2.1  20-Nov-2000  bouyer Update thorpej_scsipi to -current as of a month ago
A i386 GENERIC kernel compiles without the siop, ahc and bha drivers
(will be updated later). i386 IDE/ATAPI and ncr work, as well as
sparc/esp_sbus. alpha should work as well (untested yet).
siop, ahc and bha will be updated once I've updated the branch to current
-current, as well as machine-dependant code.
 1.20.2.2  21-Jun-2001  nathanw Catch up to -current.
 1.20.2.1  09-Apr-2001  nathanw Catch up with -current.
 1.24.16.2  16-Jul-2002  gehenna catch up with -current.
 1.24.16.1  30-May-2002  gehenna Catch up with -current.
 1.24.8.5  18-Oct-2002  nathanw Catch up to -current.
 1.24.8.4  17-Sep-2002  nathanw Catch up to -current.
 1.24.8.3  01-Aug-2002  nathanw Catch up to -current.
 1.24.8.2  20-Jun-2002  nathanw Catch up to -current.
 1.24.8.1  16-Jun-2001  nathanw file mb8795.c was added on branch nathanw_sa on 2002-06-20 03:40:22 +0000
 1.24.2.3  10-Oct-2002  jdolecek sync kqueue with -current; this includes merge of gehenna-devsw branch,
merge of i386 MP branch, and part of autoconf rototil work
 1.24.2.2  06-Sep-2002  jdolecek sync kqueue branch with HEAD
 1.24.2.1  23-Jun-2002  jdolecek catch up with -current on kqueue branch
 1.26.2.1  28-Jan-2003  jmc Pullup revisions 1.11-1.12 of sys/arch/next68k/dev/if_xe.c via patch
(requested by bouyer in ticket #1125)
bzero the part of the buffer used to pad the packet to
ETHER_MIN_LEN - ETHER_CRC_LEN.
 1.32.2.7  10-Nov-2005  skrll Sync with HEAD. Here we go again...
 1.32.2.6  04-Feb-2005  skrll Sync with HEAD.
 1.32.2.5  24-Jan-2005  skrll Sync with HEAD.
 1.32.2.4  02-Nov-2004  skrll Sync with HEAD.
 1.32.2.3  21-Sep-2004  skrll Fix the sync with head I botched.
 1.32.2.2  18-Sep-2004  skrll Sync with HEAD.
 1.32.2.1  03-Aug-2004  skrll Sync with HEAD
 1.33.4.1  24-Jan-2005  he Pull up revision 1.34 (requested by thorpej in ticket #939):
When adding or deleting multicast addresses, only change
the address filter if the interface is marked RUNNING.
Fixes PR#27678.
 1.34.4.1  29-Apr-2005  kent sync with -current
 1.35.2.1  12-Feb-2005  yamt sync with head.
 1.37.2.2  03-Sep-2007  yamt sync with head.
 1.37.2.1  30-Dec-2006  yamt sync with head.
 1.38.8.1  14-Sep-2006  yamt sync with head.
 1.38.4.1  09-Sep-2006  rpaulo sync with head
 1.39.8.1  12-Mar-2007  rmind Sync with HEAD.
 1.40.20.1  06-Nov-2007  matt sync with HEAD
 1.40.18.1  03-Sep-2007  jmcneill Sync with HEAD.
 1.40.14.1  03-Sep-2007  skrll Sync with HEAD.
 1.40.10.1  03-Oct-2007  garbled Sync with HEAD
 1.40.2.1  09-Oct-2007  ad Sync with head.
 1.42.28.2  28-Apr-2009  skrll Sync with HEAD.
 1.42.28.1  19-Jan-2009  skrll Sync with HEAD.
 1.42.26.1  13-Dec-2008  haad Update haad-dm branch to haad-dm-base2.
 1.42.20.3  11-Aug-2010  yamt sync with head.
 1.42.20.2  11-Mar-2010  yamt sync with head
 1.42.20.1  04-May-2009  yamt sync with head.
 1.42.16.1  17-Jan-2009  mjf Sync with HEAD.
 1.44.2.1  13-May-2009  jym Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.
 1.47.4.1  30-May-2010  rmind sync with head
 1.47.2.1  30-Apr-2010  uebayasi Sync with HEAD.
 1.49.12.1  18-Feb-2012  mrg merge to -current.
 1.49.8.3  22-May-2014  yamt sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
 1.49.8.2  30-Oct-2012  yamt sync with head
 1.49.8.1  17-Apr-2012  yamt sync with head
 1.50.6.3  03-Dec-2017  jdolecek update from HEAD
 1.50.6.2  20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.50.6.1  20-Nov-2012  tls Resync to 2012-11-19 00:00:00 UTC
 1.51.2.1  18-May-2014  rmind sync with head
 1.52.2.1  07-Apr-2014  tls Be a little more clear and consistent about harvesting entropy from devices:

1) deprecate RND_FLAG_NO_ESTIMATE

2) define RND_FLAG_COLLECT_TIME, RND_FLAG_COLLECT_VALUE

3) define RND_FLAG_ESTIMATE_TIME, RND_FLAG_ESTIMATE_VALUE

4) define RND_FLAG_DEFAULT: RND_FLAG_COLLECT_TIME|
RND_FLAG_COLLECT_VALUE|RND_FLAG_ESTIMATE_TIME

5) Make entropy harvesting from environmental sensors a little more generic
and remove it from individual sensor drivers.

6) Remove individual open-coded delta-estimators for values from a few
places in the tree (uvm, environmental drivers).

7) 0 -> RND_FLAG_DEFAULT, actually gather entropy from various drivers
that had stubbed out code, other minor cleanups.
 1.53.4.5  28-Aug-2017  skrll Sync with HEAD
 1.53.4.4  05-Feb-2017  skrll Sync with HEAD
 1.53.4.3  09-Jul-2016  skrll Sync with HEAD
 1.53.4.2  19-Mar-2016  skrll Sync with HEAD
 1.53.4.1  06-Jun-2015  skrll Sync with HEAD
 1.56.2.2  26-Apr-2017  pgoyette Sync with HEAD
 1.56.2.1  07-Jan-2017  pgoyette Sync with HEAD. (Note that most of these changes are simply $NetBSD$
tag issues.)
 1.57.2.1  21-Apr-2017  bouyer Sync with HEAD
 1.58.12.2  28-Jul-2018  pgoyette Sync with HEAD
 1.58.12.1  25-Jun-2018  pgoyette Sync with HEAD
 1.58.6.1  26-Jul-2018  snj Pull up following revision(s) (requested by msaitoh in ticket #938):
sys/arch/acorn32/podulebus/if_ie.c: revision 1.41
sys/arch/amiga/dev/if_es.c: revision 1.58
sys/arch/amiga/dev/if_qn.c: revision 1.45
sys/arch/arm/at91/at91emac.c: revision 1.20
sys/arch/arm/ep93xx/epe.c: revision 1.37
sys/arch/emips/ebus/if_le_ebus.c: revision 1.14
sys/arch/emips/ebus/if_le_ebus.c: revision 1.15
sys/arch/mac68k/dev/if_mc.c: revision 1.46
sys/arch/macppc/dev/am79c950.c: revision 1.39
sys/arch/newsmips/apbus/if_sn.c: revision 1.40
sys/arch/next68k/dev/mb8795.c: revision 1.59
sys/arch/playstation2/dev/if_smap.c: revision 1.25
sys/arch/playstation2/dev/if_smap.c: revision 1.26
sys/arch/sun2/dev/if_ec.c: revision 1.28
sys/arch/sun3/dev/if_ie.c: revision 1.63
sys/arch/x68k/dev/if_ne_intio.c: revision 1.19
sys/arch/xen/xen/if_xennet_xenbus.c: revision 1.75
sys/arch/xen/xen/xennetback_xenbus.c: revision 1.63
sys/dev/bi/if_ni.c: revision 1.45
sys/dev/cadence/if_cemac.c: revision 1.12
sys/dev/ic/am7990.c: revision 1.78
sys/dev/ic/am79900.c: revision 1.27
sys/dev/ic/an.c: revision 1.67
sys/dev/ic/cs89x0.c: revision 1.40
sys/dev/ic/dm9000.c: revision 1.13
sys/dev/ic/dm9000.c: revision 1.14
sys/dev/ic/dp8390.c: revision 1.88
sys/dev/ic/elink3.c: revision 1.141
sys/dev/ic/elinkxl.c: revision 1.122
sys/dev/ic/hme.c: revision 1.98
sys/dev/ic/i82586.c: revision 1.77
sys/dev/ic/lance.c: revision 1.53
sys/dev/ic/mb86950.c: revision 1.27
sys/dev/ic/mb86960.c: revision 1.86
sys/dev/ic/mtd803.c: revision 1.34
sys/dev/ic/pdq_ifsubr.c: revision 1.59
sys/dev/ic/rrunner.c: revision 1.86
sys/dev/ic/seeq8005.c: revision 1.58
sys/dev/ic/sgec.c: revision 1.47
sys/dev/ic/smc90cx6.c: revision 1.72
sys/dev/ic/smc91cxx.c: revision 1.96
sys/dev/ic/tropic.c: revision 1.49
sys/dev/ic/wi.c: revision 1.245
sys/dev/isa/if_eg.c: revision 1.93
sys/dev/isa/if_el.c: revision 1.95
sys/dev/isa/if_iy.c: revision 1.101
sys/dev/ofw/ofnet.c: revision 1.58
sys/dev/pci/if_alc.c: revision 1.27
sys/dev/pci/if_de.c: revision 1.152
sys/dev/pci/if_fpa.c: revision 1.61
sys/dev/pci/if_jme.c: revision 1.34
sys/dev/pci/if_tl.c: revision 1.108
sys/dev/pci/if_vte.c: revision 1.19
sys/dev/pci/ixgbe/ixgbe.h: revision 1.50
sys/dev/pcmcia/if_cnw.c: revision 1.62
sys/dev/pcmcia/if_malo_pcmcia.c: revision 1.17
sys/dev/pcmcia/if_ray.c: revision 1.89
sys/dev/pcmcia/if_xi.c: revision 1.81
sys/dev/pcmcia/mhzc.c: revision 1.51
sys/dev/pcmcia/xirc.c: revision 1.34
sys/dev/qbus/if_de.c: revision 1.33
sys/dev/qbus/if_qe.c: revision 1.78
sys/dev/qbus/if_qt.c: revision 1.22
sys/dev/sbus/be.c: revision 1.87
sys/dev/sbus/qe.c: revision 1.68
sys/dev/scsipi/if_se.c: revision 1.96
sys/dev/usb/if_atu.c: revision 1.59
sys/net/if_l2tp.c: revision 1.28 via patch
sys/net/if_ppp.c: revision 1.160
It's not required to include net/bpfdesc.h. Remove it.
--
Simplify like other drivers. NULL check of ifp->if_bpf is done in
bpf_mtap(), so it's not required to do it here.
--
Remove duplicated inclusion of net/bpf.h.
--
Remove duplicated inclusion of net/bpf.h.
--
Simplify bpf_mtap() call. No functional change.
 1.60.2.2  08-Apr-2020  martin Merge changes from current as of 20200406
 1.60.2.1  10-Jun-2019  christos Sync with HEAD
 1.65.4.1  29-Feb-2020  ad Sync with head.

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