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History log of /src/sys/dev/usb/if_axen.c
RevisionDateAuthorComments
 1.96  19-Dec-2023  skrll Use un_flags as pointed out by mrg@ thanks.
 1.95  19-Dec-2023  skrll Add support for AX88179A. From sc.dying on current-users.
 1.94  20-Aug-2022  riastradh branches: 1.94.4;
usbnet(9): New usbnet_ispromisc(un).

Replaces ifp->if_flags & IFF_PROMISC in multicast filter updates.
 1.93  03-Mar-2022  riastradh usbnet: Omit needless detachcv name parameter to usbnet_attach.
 1.92  03-Mar-2022  riastradh usbnet: Factor usbnet_init_rx_tx out into usbnet_if_init.

Make it private; no need for drivers to call it any more.
 1.91  03-Mar-2022  riastradh usbnet drivers: From *_uno_init, call *_uno_stop, not usbnet_stop.

Make usbnet_stop private now that no drivers use it.

None of the driver-independent logic in usbnet_stop has any effect at
this point because we are guaranteed not to be running, so only the
driver-dependent logic in *_uno_stop (at most) is needed.

For drivers with no *_uno_stop, just omit the call to usbnet_stop
altogether.

Some of this logic is obviously redundant with the subsequent call to
*_reset -- to be addressed in a subsequent commit.
 1.90  03-Mar-2022  riastradh usbnet drivers: Omit needless isdying tests in *_uno_init.

usbnet(9) already checks this immediately before calling *_uno_init.
 1.89  03-Mar-2022  riastradh usbnet drivers: Omit needless usbnet core lock and assertions.

During attach, the caller has exclusive access to the usbnet until
usbnet_attach_ifp. At other times, register access is serialized
either by the usbnet multicast lock or by IFNET_LOCK.
 1.88  03-Mar-2022  riastradh usbnet drivers: Avoid undefined behaviour if read reg fails.

Some callers don't check the error code, e.g. ~all the mii phy
drivers using PHY_READ. Just return zero if the device is gone or
the xfer fails for any other reason.
 1.87  03-Mar-2022  riastradh axen(4): Use axen mii read/write reg routines, not usbnet ones.

The usbnet wrappers don't add anything important. We already test
usbnet_isdying in axen_cmd, and that's already a best-effort thing
(which should probably be done better by having usbd_do_request fail
promptly if detaching anyway).
 1.86  03-Mar-2022  riastradh usbnet drivers: Assert IFNET_LOCKED in if ioctl routines.

These only happen either during the transition up or down (init or
stop), or while that transition is excluded (ioctl).

This may be called from ioctl or from init, which both hold the ifnet
lock.

XXX smsc_setoe_locked should maybe trigger reinit because the rx loop
behaves differently depending on whether checksumming is enabled.

XXX mue_sethwcsum_locked needs to exclude mcast updates.
 1.85  03-Mar-2022  riastradh usbnet drivers: Omit redundant multicast filter update on init.
 1.84  03-Mar-2022  riastradh usbnet: Apply hardware multicast filter updates synchronously again.

To make this work:

1. Do it only under a new lock, unp_mcastlock. This lock lives at
IPL_SOFTCLOCK so it can be taken from network stack callouts. It
is forbidden to acquire the usbnet core lock under unp_mcastlock.

2. Do it only after usbnet_init_rx_tx and before usbnet_stop; if
issued at any other time, drop the update on the floor.

3. Make usbnet_init_rx_tx apply any pending multicast filter updates
under the lock before setting the flag that allows SIOCADDMULTI or
SIOCDELMULTI to apply the updates.

4. Remove core lock asserts from various drivers' register access
routines. This is necessary because the multicast filter updates
are done with register reads/writes, but _cannot_ take the core
lock when the caller holds softnet_lock.

This now programs the hardware multicast filter redundantly in many
drivers which already explicitly call *_uno_mcast from the *_uno_init
routines. This is probably harmless, but it will likely be better to
remove the explicit calls.
 1.83  03-Mar-2022  riastradh usbnet drivers: Omit needless uno_mcast locked subroutines.

uno_mcast is now called with the core lock already held so there is
no need for a separate locked subroutine.
 1.82  03-Mar-2022  riastradh usbnet: Take the core lock around uno_mcast.

Every driver does this already. This will enable us to change the
lock that serializes access to the registers so we can go back to
doing this synchronously in SIOCADDMULTI/SIOCDELMULTI.
 1.81  03-Mar-2022  riastradh usbnet drivers: Omit needless uno_init locked subroutines.

uno_init is now called with the core lock already held so there is no
need for a separate locked subroutine.
 1.80  03-Mar-2022  riastradh usbnet drivers: No need for usbnet_busy during attach.

usbnet_detach cannot run until the attach routine has finished
(unless a driver goes out of its way to tie its shoelaces together
and explicitly call it during the attach routine, which none of them
do), so there is no need to hang onto a reference count that we
release before attach returns.
 1.79  03-Mar-2022  riastradh usbnet drivers: No need for usbnet_busy in uno_ioctl.

This callback always runs with the IFNET_LOCK held, and the interface
cannot be detached until the IFNET_LOCK is released, so there is no
need to hang onto a reference count here. (None of the subnet
drivers touch the IFNET_LOCK except to verify it is held sometimes.)
 1.78  03-Mar-2022  riastradh usbnet drivers: No need for usbnet_busy in uno_mcast.

This callback always runs with IFNET_LOCK held, and during a task
that usbnet_detach prevents scheduling anew and waits for finishing
before completing the detach, so there is no need to hang onto a
reference count here.
 1.77  03-Mar-2022  riastradh usbnet drivers: No need for usbnet_busy in uno_init.

This callback always runs with the IFNET_LOCK held, and the interface
cannot be detached until the IFNET_LOCK is released, so there is no
need to hang onto a reference count here. (None of the usbnet
drivers touch the IFNET_LOCK except to verify it is held sometimes.)
 1.76  03-Mar-2022  riastradh usbnet: Split multicast filter reprogramming into separate operation.
 1.75  03-Mar-2022  riastradh usbnet: Enter uno_init with the core lock held.

This reduces code in all drivers except urndis(4) and aue(4).

However, it's still safe for urndis to drop the core lock because the
ifnet is locked, and the ifnet lock covers the DOWN->UP (uno_init)
and UP->DOWN (uno_stop) transitions.
 1.74  03-Mar-2022  riastradh axen(4), mue(4), smsc(4): Omit irrelevant cases in ioctl.

SIOCSIFFLAGS and SIOCSETHERCAP always end up in ether_ioctl_reinit,
which triggers the same logic to reprogram the multicast filters
anyway.
 1.73  15-Mar-2020  thorpej Define and implement a locking protocol for the ifmedia / mii layers:
- MP-safe drivers provide a mutex to ifmedia that is used to serialize
access to media-related structures / hardware regsiters. Converted
drivers use the new ifmedia_init_with_lock() function for this. The
new name is provided to ease the transition.
- Un-converted drivers continue to call ifmedia_init(), which will supply
a compatibility lock to be used instead. Several media-related entry
points must be aware of this compatibility lock, and are able to acquire
it recursively a limited number of times, if needed. This is a SPIN
mutex with priority IPL_NET.
- This same lock is used to serialize access to PHY registers and other
MII-related data structures.

The PHY drivers are modified to acquire and release the lock, as needed,
and assert the lock is held as a diagnostic aid.

The "usbnet" framework has had an overhaul of its internal locking
protocols to fit in with the media / mii changes, and the drivers adapted.

USB wifi drivers have been changed to provide their own adaptive mutex
to the ifmedia later via a new ieee80211_media_init_with_lock() function.
This is required because the USB drivers need an adaptive mutex.

Besised "usbnet", a few other drivers are converted: vmx, wm, ixgbe / ixv.

mcx also now calls ifmedia_init_with_lock() because it needs to also use
an adaptive mutex. The mcx driver still needs to be fully converted to
NET_MPSAFE.
 1.72  14-Mar-2020  christos revert the 0x% -> %# change for fixed width formats pointed out by uwe.
 1.71  13-Mar-2020  christos PR/55068: sc.dying: Fix printf formats:
- no %s/%p for kernel log
- 0x% -> %#
- always %j for kernel log
 1.70  29-Jan-2020  thorpej Adopt <net/if_stats.h>.
 1.69  15-Jan-2020  skrll Use a define instead of a magic constant. NFCI.
 1.68  07-Jan-2020  maxv branches: 1.68.2;
Localify, constify.
 1.67  23-Aug-2019  mrg s/UBSNET_MII_DECL_DEFAULT/USBNET_MII_DECL_DEFAULT/. from sc.dying.
 1.66  20-Aug-2019  mrg couple more changes to usbnet(9):

- MII read/write reg return int instead of usbd_status (requested by skrll)
- usbnet_attach_ifp(9) changes arg, two mii-specific flags are placed by a
pointer to new struct usbnet_mii. if not NULL, then attach an MII to this
interface like previous have_mii parameter. use this to allow ure(4) to
properly pass PHY location to mii_attach().

welcome netbsd 9.99.10.
 1.65  19-Aug-2019  mrg move the check against un_phyno from usbnet back into the drivers
that do this (axe, axen, mue, smsc, ure.) it made mii scanning
only work for phy 0, and aue needs it for at least one device.

fix smsc to return usbd_status not -1 on failure. XXX smsc was
writing to '*val' even in error cases, it does not now.

remove a double call to IFQ_SET_READY() (noticed by chuq).

avoid unlock+instant relock by using usbnet_lock_mii_un_locked().
 1.64  15-Aug-2019  mrg - usbnet_rx_loop_cb's usbd_xfer parameter is never used and available
in the usbnet_chain if needed. remove it
- usbnet media status change already set link to false, don't repeat
this in every driver
- don't clear link in stop, nothing was re-enabling it for non-MII
- add optional uno_tick_cb(struct usbnet *un) that is called from the
usbnet tick timer
- remove wrong debug sysctl prototype

rx_loop and timer are kernel versions changes, but hopefully this is
the last one for usbnet. working with 3 more drivers now (cue, mue
and url), leaving only aue, kue, upl and umb undone (aue may work
with previously supported devices, mine doesn't work with our driver,
kue and upl have patches for testing and umb is undone.)
 1.63  14-Aug-2019  mrg introduce usbnet_set_dying(). will be used by url(4) conversion.
bump version.

introduce USBNET_MODULE() that encompasses almost all the module
specific code for usbnet modules. they still need to include
the relevant ioconf.c, but everything else is now just, eg,

USBNET_MODULE(axen)
 1.62  11-Aug-2019  skrll Appease module build
 1.61  11-Aug-2019  mrg copy a pattern from if_udav.c, which already had "too much" check.

even though overflow or underflow is really unlikely here, reorder
various expressions to reduce the likelyhood even further.
 1.60  11-Aug-2019  mrg in tx_prepare callback make sure to reject any mbuf that is larger
than can fit in the buffer. done at the driver and not usbnet
layer because the driver knows how much beyond the mbuf data needs
to be sent (headers and trailers.)

axen(4) had a KASSERT() for this condition, but there's no
invariant here we can check so it's best as an error return.

XXX: only tested on these drivers, needs to be copied to udav, smsc
and urndis after testing as well as the not commited conversions.
 1.59  10-Aug-2019  mrg reduce the scope of struct usbnet:
- move a large number of members internal to usbnet.c's new
"struct usbnet_private".
- provide accessors for a few of these
- move struct usbnet_cdata into usbnet.c as well, but move
bufsz, list count, and xfer flags back out into struct usbnet,
and have them set as part of the setup efore usbnet_attach()
- split the intr pipe parts into their own structure
- move all the main usbnet*lock* code into usbnet.c too

usbnet_attach() goes down to 2 args, and the inputs needed are
now the full contents of 'struct usbnet' besides the driver
owned 'un_flags' and usbnet owned 'un_pri'.

welcome netbsd 9.99.6.
 1.58  09-Aug-2019  mrg use new un_flags member of usbnet:
- axen(4) and cdce(4) are now able to use struct usbnet directly
as softc, udav also done but untested
 1.57  09-Aug-2019  mrg update usbnet some:
- move rx/tx xfer flags into usbnet_cdata
- move the callbacks into usbnet_ops structure
- move rx/tx xfer flags arguments from usbnet_init_rx_tx()
and move them all into usbnet_attach() arguments
- s/miibus/mii/ in some places for consistency

other clean up:
- create wrapper functions for callbacks, move knowledge about
special handling (OK to be missing, error eating) there.
- use cdata pointer if already available
- provide some more macros (will be real functions later) for
accessing usbnet members, use existing ones more

bump kernel version.
 1.56  06-Aug-2019  mrg for ethernet usb network devices, print the mac addr in usbnet.
 1.55  06-Aug-2019  mrg extend usbnet to cope with if_upl, if_smsc, and if_umb needs:

- usbnet_enqueue() can set mbuf flags and csum_data
- usbnet_input() for non-ethernet based devices (upl, umb)
- allow a complete override for ioctl()
- remove converted list -- we have compiling and/or working patches for
all the devices except for umb(4), will be merged as testing happens

hopefully this is the last ABI change, though it may end up being
extended for additional smsc(4) support.


hello for real netbsd 9.99.3!
 1.54  05-Aug-2019  skrll Typo in error message
 1.53  04-Aug-2019  mrg - adjust usbnet interface to allow usbd_open_pipe_intr(), from the
new comment:
* if un_intr_buf is not NULL, use usbd_open_pipe_intr() not
* usbd_open_pipe() for USBNET_ENDPT_INTR, with this buffer,
* size, and interval.
the standard handling is in usbnet.c, with a callback to deal with
the interrupt it self. not fully tested, designed for if_aue.c
and a few others not yet converted.
- make usbhist for usbnet.c work, thanks paulg
- usbnet_init_rx_tx() clears out all allocations upon failure now
- add usbnet_ec() to get a pointer to the struct ethercom
- add usbnet_{lock,unlock,owned}*() to lock/unlock the various locks
and *owned*() for asserting

welcome 9.99.3!
 1.52  31-Jul-2019  mrg couple of minor API updates:
- change the read/write register callbacks to have the same phy/reg
order as the MII code.
- add "mii_flags" param to usbnet_attach_ifp(). axe(4) wants it.

also:
- add usbnet debug code, sysctl node support
- remove commented DPRINTF()s accidentally left in place
- add usbnet_softc()
- reorder some attach code to be consistent
- re-add USBD_FORCE_SHORT_XFER for axen rx chain

ride 9.99.2 bump.
 1.51  31-Jul-2019  mrg introduce a library of common code / backends to share code between
USB ethernet drivers.

usbnet.h introduces a new set of APIs to provide common solutions
for these driver features:
- USB endpoint pipe handling
- rx and tx chain handling
- generic handlers or support for several struct ifnet callbacks
- MII bus locking
- interrupt handling
- partial autoconf handling: much of attach, and detach/activate
can use common versions directly.

currently, only axen(4) and cdce(4) are converted. the reductions
in these drivers are quite significant: if_cdce.c is reduced from
1000 lines to 320 lines, and if_axen is reduced from 1902 lines
to 1021 lines.

add a "usbnet" module and make the if_axen module depend upon it.
 1.50  15-Jul-2019  mrg branches: 1.50.2;
minor white space adjustments.
 1.49  28-Jun-2019  mrg more smp cleanup for ure(4)/axen(4)/cdce(4):

- convert IFF_ALLMULTI to ETHER_F_ALLMULTI, using ETHER_LOCK()
- remove IFF_OACTIVE use, and simply check the ring count in start
- assert/take more locks
- XXX: IFF_RUNNING is not properly protected (all driver problem)
- fix axen_timer setting so it actually runs
- document a locking issue in stop callback:
stop is called with the softc lock held, but the lock order
in all other places is ifnet -> softc -> rx -> tx, so taking
ifnet lock when softc lock is held would be problematic
- in rxeof check for stopping/dying more often. i managed to
trigger a pagefault in cdce_rxeof() when yanking an active
device as it attempted to usbd_setup_xfer() on closed pipes.
- add missing USBD_MPSAFE and cdce_stopping resetting for cdce(4)

between this and other recent clean ups increase performance of
these drivers mostly. some numbers (in mbit/sec):

old: new:
driver in out in+out in out in+out
---- -- --- ------ -- --- ------
cdce 39 32 44 38 33 54
axen 44 34 45 48 37 42
ure 36 34 35 36 38 38

i'm not sure why axen drops a little with in+out. cdce is
helped quite a lot, and ure a little. it is disappointing that
ure does not outperform cdce -- it's the same actual hardware,
and the device-specific (ure) should outperform the generic
cdce driver...
 1.48  22-Jun-2019  mrg wrap axen_iff() with axen_iff_locked().
add a missing lock exit in error path.
 1.47  22-Jun-2019  mrg mark this driver MPSAFE for usb tasks and pipes, if(4), and callouts.
remove remaining redundant spl calls.
 1.46  22-Jun-2019  mrg re-apply rev 1.44 with a minor bug fix in axen_tick_task().

it introduced a problem when there wasn't a reasonaly constant
stream of incoming packets, and i had a 'nttcp' running against
my test machine constantly, avoiding the bug.
 1.45  22-Jun-2019  mrg revert the previous.

i'm fairly postive i tested it, as i tested enabing mpsafe version
on top of this successfully. however, something happened mid-ssh
with a kernel with mpsafe and my session hung, and since then i've
been unable to boot kernels with the previous revision applied.
 1.44  21-Jun-2019  mrg fix issues seen with transfers being reused before they are finished
being used.

adapt locking to the modern world. some what inspired by if_smsc.c:
- add locks for softc, rx and tx
- add safe detach support
- safe detach vs mii lock requires 2 methods to lock the MII lock,
- check axen_dying and new axen_stopping more often
- consolidate checks to reduce the number of error paths that need
to release a resource
- move axen_watchdog() out of if_timer into the tick task to
prepare for MPSAFEification

TODO:
- remove spl usage
- enable mpsafe

special thanks to skrll and mlelstv for clearing up various
confusion and providing examples.
 1.43  20-Jun-2019  mrg minor clean up, almost NFCI:
- use const, __func__, more
- axen_mii_lock is a normal mutex not rwlock, and make sure it's
properly cleaned up for failed attach
- check axen_dying in axen_miibus_statchg()
- rename axen_ax88179_eeprom() to axen_get_eaddr() and move the code
here into the support the current method.
- adjust some comments
 1.42  18-Jun-2019  mrg move struct axen_chain, struct axen_cdata, struct axen_softc,
struct axen_type, sc_if, GET_MII(), and GET_IFP() -- all the
software defined components from if_axenreg.h into if_axen.c.
 1.41  28-May-2019  msaitoh Use ETHER_LOCK()/ETHER_UNLOCK() for all ethernet drivers to protect ec_multi*.
 1.40  23-May-2019  msaitoh Whitespace fix (mainly tabify).
 1.39  23-May-2019  msaitoh -No functional change:
- KNF
- u_int*_t -> uint*_t.
 1.38  11-Apr-2019  msaitoh Fix a bug that the duplex of manual media setting may be wrong
when the IFM_GMASK bit other than IFM_[FH]DX is set.
 1.37  17-Feb-2019  rin Remove unused.
 1.36  07-Feb-2019  mlelstv Use unsigned variables for buffer length to avoid compiler warnings.
 1.35  06-Feb-2019  rin Add ratecheck for TX errors for axen(4) and mue(4).
 1.34  06-Feb-2019  rin Fix panic when detach or "ifconfig down" for axen(4) and mue(4).
- Mitigate race conditions, that become critical when multiple outstanding
transfers are enabled.
- Drop link flags earlier in foo_stop() to make sure (paranoia).
 1.33  06-Feb-2019  rin Enable multiple outstanding transfers.
XXX Linux driver uses much larger numbers of transfers.
 1.32  06-Feb-2019  rin Add couple of error printf.

XXX We should not to use aprint_xxx() for non-autoconf staffs.
 1.31  06-Feb-2019  rin Oops, fix previous again. Really support TSOv4.
 1.30  06-Feb-2019  rin Fix previous.
 1.29  06-Feb-2019  rin Support TSOv4 (They call it LSOv1).
The adapter does not support TSOv6 (aka LSOv2).
 1.28  06-Feb-2019  rin Fix padding for a full length USB packet in TX:
- Update boundary length for SS mode, taken from OpenBSD.
- Make sure everything passed to the adapter is little endian.
- Specify padding bits in a similar manner to Linux.

XXX I wonder whether this is really necessary...
 1.27  06-Feb-2019  rin Cosmetic changes; no functional changes.
 1.26  06-Feb-2019  rin Drop AXEN_MEDIUM_ALWAYS_ONE (from Linux), which reduces drop erros in RX.
 1.25  06-Feb-2019  rin Remove useless memset.
 1.24  31-Jan-2019  rin Correct error bits in RX packet header:
- Drop error is bit 31.
- CRC error is bit 29.
- Distinguish the two errors in debug printf.
 1.23  31-Jan-2019  rin Enable hash-table-based multicast filter:
- Drop AXEN_RXCTL_ACPT_PHY_MCAST bit (neither Linux nor FreeBSD sets it).
- 0x0010 bit is not AXEN_RXCTL_ACPT_BCAST ("accept broadcast") but
AXEN_RXCTL_ACPT_MCAST ("accept multicast (hash-table-based)").
 1.22  31-Jan-2019  rin In axen_tick_task(), call axen_miibus_statchg() when link is lost
(like other drivers). Otherwise, link can be lost forever, which
results in sysmtem freeze.
 1.21  31-Jan-2019  rin Enable AXEN_RXCTL_START bit only when RX is ready. Otherwise,
the adapter eventually falls into "no carrier" state while it
is not running.
 1.20  31-Jan-2019  rin Fix previous:
- axen_coe() should be called from axen_init(), not axen_ax88179_init().
- Simplify logic in axen_coe(); AXEN_[RT]XCOE_OFF = 0.
 1.19  30-Jan-2019  rin Fix HW checksum offloading.
- Enable ones specified in if_capenable and remove AXEN_TOE macro.
- Check correct bit and set appropriate csum_flags.
- Pass packets of wrong checksum to upper layer instead of dropping them.
- Fix value of AXEN_RXHDR_L3_TYPE_MASK.

Tested on ASIX Elec. Corp. (0xb95) AX88179 (0x1790).
 1.18  22-Jan-2019  msaitoh Change MII PHY read/write API from:

int (*mii_readreg_t)(device_t, int, int);
void (*mii_writereg_t)(device_t, int, int, int);
to:

int (*mii_readreg_t)(device_t, int, int, uint16_t *);
int (*mii_writereg_t)(device_t, int, int, uint16_t);

Now we can test if a read/write operation failed or not by the return value.

In 802.3 spec says that the PHY shall not respond to read/write transaction
to the unimplemented register(22.2.4.3). Detecting timeout can be used to
check whether a register is implemented or not (if the register conforms to
the spec). ukphy(4) can be used this for MII_MMDACR and MII_MMDAADR.

Note that I noticed that the following code do infinite loop in the
read/wirte function. If it accesses unimplemented PHY register, it will hang.
It should be fixed:

arm/at91/at91emac.c
arm/ep93xx/epe.c
arm/omap/omapl1x_emac.c
mips/ralink/ralink_eth.c
arch/powerpc/booke/dev/pq3etsec.c(read)
dev/cadence/if_cemac.c <- hkenken
dev/ic/lan9118.c


Tested with the following device:

axe+ukphy
axe+rgephy
axen+rgephy (tested by Andrius V)
wm+atphy
wm+ukphy
wm+igphy
wm+ihphy
wm+makphy
sk+makphy
sk+brgphy
sk+gentbi
msk+makphy
sip+icsphy
sip+ukphy
re+rgephy
bge+brgphy
bnx+brgphy
gsip+gphyter
rtk+rlphy
fxp+inphy (tested by Andrius V)
tlp+acphy
ex+exphy
epic+qsphy
vge+ciphy (tested by Andrius V)
vr+ukphy (tested by Andrius V)
vte+ukphy (tested by Andrius V)

Not tested (MAC):
arm:at91emac
arm:cemac
arm:epe
arm:geminigmac
arm:enet
arm:cpsw
arm:emac(omac)
arm:emac(sunxi)
arm:npe
evbppc:temac
macppc:bm
macppc:gm
mips:aumac
mips:ae
mips:cnmac
mips:reth
mips:sbmac
playstation2:smap
powerpc:tsec
powerpc:emac(ibm4xx)
sgimips:mec
sparc:be
sf
ne(ax88190, dl10019)
awge
ep
gem
hme
smsh
mtd
sm
age
alc
ale
bce
cas
et
jme
lii
nfe
pcn
ste
stge
tl
xi
aue
mue
smsc
udav
url

Not tested (PHY):
amhphy
bmtphy
dmphy
etphy
glxtphy
ikphy
iophy
lxtphy
nsphyter
pnaphy
rdcphy
sqphy
tlphy
tqphy
urlphy
 1.17  12-Sep-2018  christos Don't have modules depend on bpf; they will find the dependency dynamically
at runtime. Otherwise builtin modules will complain about non-builtin bpf.
 1.16  02-Aug-2018  riastradh Fix usb_rem_task_wait API.

- Return whether it removed task from queue or not.
. True if it was on the queue and we intercepted it before it ran.
. False if we could not intercept it: either it wasn't queued,
or it already ran. (Up to caller to distinguish these cases.)
- Pass an optional interlock like callout_halt.

While here, simplify.

ok mrg@
 1.15  29-Jul-2018  riastradh Use callout_halt and usb_rem_task_wait in axen(4).
 1.14  20-Jul-2018  martin Andrius V in PR kern/53461: add support for D-Link DUB-1312
 1.13  26-Jun-2018  msaitoh branches: 1.13.2;
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.
 1.12  21-Jan-2018  skrll branches: 1.12.2;
PR kern/52931 Kernel panics with Atheros usb wireless interface

Audit the flags to usbd_create_xfer so that USBD_FORCE_SHORT_XFER is
supplied wherever such a transfer is setup. We can drop
USBD_SHORT_XFER_OK as it has not bearing on number of TDs
 1.11  15-Dec-2016  ozaki-r branches: 1.11.8;
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
 1.10  25-Nov-2016  skrll +#include "opt_usb.h"
 1.9  10-Jun-2016  ozaki-r branches: 1.9.2;
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.
 1.8  23-Apr-2016  skrll Merge nick-nhusb

- API / infrastructure changes to support memory management changes.
- Memory management improvements and bug fixes.
- HCDs should now be MP safe
- conversion to KERNHIST based debug
- FS/LS isoc support on ehci(4).
- conversion to kmem(9)
- Some USB 3 support - mostly from Takahiro HAYASHI (t-hash).
- interrupt transfers now get proper DMA operations
- general bug fixes
- kern/48308
- uhub status notification improvements
- umass(4) probe fix (applied to HEAD already)
- ohci(4) short transfer fix
 1.7  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!
 1.6  13-Apr-2015  riastradh Convert sys/dev to use <sys/rndsource.h>.
 1.5  08-Apr-2015  nonaka Added pmf hook.
 1.4  12-Feb-2015  nonaka Apply PR kern/49659 patch from Takahiro HAYASHI.
 1.3  10-Aug-2014  tls branches: 1.3.2; 1.3.4; 1.3.6;
Merge tls-earlyentropy branch into HEAD.
 1.2  29-Oct-2013  joerg branches: 1.2.2; 1.2.4; 1.2.6;
Remove bogus cast. The LHS type is smaller, so let the compiler decide
on the correct (unsigned type).
 1.1  26-Oct-2013  nonaka Add driver for ASIX AX88178a and AX88179 Ethernet interface.
Ported from OpenBSD.
 1.2.6.2  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")
 1.2.6.1  29-Oct-2013  yamt file if_axen.c was added on branch yamt-pagecache on 2014-05-22 11:40:36 +0000
 1.2.4.2  18-May-2014  rmind sync with head
 1.2.4.1  29-Oct-2013  rmind file if_axen.c was added on branch rmind-smpnet on 2014-05-18 17:45:47 +0000
 1.2.2.1  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.
 1.3.6.15  05-Feb-2017  skrll Sync with HEAD
 1.3.6.14  28-Dec-2016  skrll Destroy all mutexes on detach
 1.3.6.13  12-Dec-2016  skrll WIP MPification
 1.3.6.12  05-Dec-2016  skrll Sync with HEAD
 1.3.6.11  09-Jul-2016  skrll Sync with HEAD
 1.3.6.10  19-Mar-2016  skrll Sync with HEAD
 1.3.6.9  28-Dec-2015  skrll Strictly follow the sequence abort pipe, destroy xfers, and close pipe as
API now requires. Plug some memory leaks in some drivers while doing
this.

Also, remove up_refcnt as it was broken and helped leak more memory.
 1.3.6.8  06-Oct-2015  skrll Move from usbd_{alloc,free}_xfer and usbd_{alloc,free}_buffer to
usbd_{create,destroy}_xfer. The API change will allow future changes
to HCDs to simplify the transfer resource allocation and activation.

Several devices tested including ucom, umass, smsc, uvideo, and uaudio.
 1.3.6.7  06-Jun-2015  skrll Sync with HEAD
 1.3.6.6  06-Apr-2015  skrll Sync with HEAD
 1.3.6.5  21-Mar-2015  skrll Add prefixes to attach_arg structure member names. No functional change.
 1.3.6.4  19-Mar-2015  skrll Do the same as OpenBSD and get rid of the *_handle typedefs and use
plain structures insteads
 1.3.6.3  06-Dec-2014  skrll KNF. Remove argument name from function declarations.

No functional change.
 1.3.6.2  03-Dec-2014  skrll The grand renaming of structure members.

No functional change.
 1.3.6.1  02-Dec-2014  skrll Step #1 of memory allocation re-organisation.

Centralised the buffer allocation routine which now supports DMA
and non-DMA capable host controllers. Remove the
ubm_{alloc,free}m methods from usbd_bus_methods.

The buffer allocation is only allowed in thread context and,
therefore, negates the usefulness of the reserve dma code which
is removed in this change.

USBD_NO_COPY is also no longer required as usbd_transfer and
usbd_transfer_complete now track buffer usage and handle any
copying.
 1.3.4.3  03-Dec-2017  jdolecek update from HEAD
 1.3.4.2  20-Aug-2014  tls Rebase to HEAD as of a few days ago.
 1.3.4.1  10-Aug-2014  tls file if_axen.c was added on branch tls-maxphys on 2014-08-20 00:03:51 +0000
 1.3.2.4  08-Aug-2018  martin Pull up following revision(s) (requested by riastradh in ticket #1626):

sys/dev/usb/if_cue.c: revision 1.80
sys/dev/usb/umcs.c: revision 1.11
sys/dev/usb/umcs.c: revision 1.12
sys/dev/usb/if_ural.c: revision 1.56
sys/dev/usb/if_run.c: revision 1.28
sys/dev/usb/if_ural.c: revision 1.57
sys/dev/usb/if_run.c: revision 1.29
sys/dev/usb/uatp.c: revision 1.16
sys/dev/usb/uatp.c: revision 1.17
sys/dev/usb/if_axe.c: revision 1.91
sys/dev/usb/if_axe.c: revision 1.92
sys/dev/usb/if_zyd.c: revision 1.49
sys/dev/usb/if_axen.c: revision 1.15
sys/dev/usb/if_url.c: revision 1.60
sys/dev/usb/if_udav.c: revision 1.54
sys/dev/usb/if_axen.c: revision 1.16
sys/dev/usb/if_udav.c: revision 1.55
sys/dev/usb/if_athn_usb.c: revision 1.28
sys/dev/usb/if_athn_usb.c: revision 1.29
sys/dev/usb/if_urtw.c: revision 1.16
sys/dev/usb/if_urtw.c: revision 1.17
sys/dev/usb/if_cue.c: revision 1.79
sys/dev/usb/if_rum.c: revision 1.62
sys/dev/usb/if_urtwn.c: revision 1.61
sys/dev/usb/if_rum.c: revision 1.63
sys/dev/usb/if_urtwn.c: revision 1.63
sys/dev/usb/usb.c: revision 1.170
sys/dev/usb/usb.c: revision 1.171
sys/dev/usb/if_smsc.c: revision 1.35
sys/dev/usb/if_smsc.c: revision 1.36
sys/dev/usb/if_zyd.c: revision 1.50
sys/dev/usb/if_aue.c: revision 1.144
sys/dev/usb/if_aue.c: revision 1.145
sys/dev/usb/usb_subr.c: revision 1.225
sys/dev/usb/usb_subr.c: revision 1.226
sys/dev/usb/if_upgt.c: revision 1.21
sys/dev/usb/usbdi.h: revision 1.93
sys/dev/usb/if_upgt.c: revision 1.22
sys/dev/usb/if_url.c: revision 1.59
sys/dev/usb/usbdi.h: revision 1.95
sys/dev/usb/if_otus.c: revision 1.34
sys/dev/usb/if_atu.c: revision 1.62
sys/dev/usb/if_otus.c: revision 1.35
sys/dev/usb/if_atu.c: revision 1.63

New function usb_rem_task_wait(dev, task, queue).

If task is scheduled to run, removes it from the queue. If it may
have already begun to run, waits for it to complete. Caller must
guarantee it will not switch to another queue. If caller guarantees
it will not be scheduled again, then usb_rem_task_wait guarantees it
is not running on return.

This will enable us to fix a litany of bugs in detach where we
currently fail to wait for a pending task.

Use usb_rem_task_wait in various drivers.
 1.3.2.3  19-Feb-2018  snj Pull up following revision(s) (requested by skrll in ticket #1556):
sys/dev/usb/if_athn_usb.c: 1.25
sys/dev/usb/if_atu.c: 1.56
sys/dev/usb/if_aue.c: 1.142
sys/dev/usb/if_axe.c: 1.84
sys/dev/usb/if_axen.c: 1.12
sys/dev/usb/if_cdce.c: 1.45
sys/dev/usb/if_cue.c: 1.77
sys/dev/usb/if_kue.c: 1.91
sys/dev/usb/if_otus.c: 1.32
sys/dev/usb/if_rum.c: 1.59
sys/dev/usb/if_run.c: 1.25
sys/dev/usb/if_smsc.c: 1.33
sys/dev/usb/if_udav.c: 1.52
sys/dev/usb/if_upgt.c: 1.18
sys/dev/usb/if_upl.c: 1.61
sys/dev/usb/if_ural.c: 1.53
sys/dev/usb/if_url.c: 1.57
sys/dev/usb/if_urndis.c: 1.17
sys/dev/usb/if_urtw.c: 1.14
sys/dev/usb/if_urtwn.c: 1.56
sys/dev/usb/if_zyd.c: 1.45
sys/dev/usb/irmce.c: 1.4
sys/dev/usb/pseye.c: 1.24
sys/dev/usb/ubt.c: 1.60
sys/dev/usb/ucom.c: 1.120
sys/dev/usb/udsir.c: 1.6
sys/dev/usb/ugen.c: 1.137
sys/dev/usb/uhso.c: 1.27
sys/dev/usb/uirda.c: 1.43
sys/dev/usb/ulpt.c: 1.99
sys/dev/usb/umass.c: 1.163
sys/dev/usb/umidi.c: 1.74
sys/dev/usb/uscanner.c: 1.82
sys/dev/usb/usscanner.c: 1.43
sys/dev/usb/ustir.c: 1.39
sys/dev/usb/utoppy.c: 1.30
sys/dev/usb/uvideo.c: 1.46
PR kern/52931 Kernel panics with Atheros usb wireless interface
Audit the flags to usbd_create_xfer so that USBD_FORCE_SHORT_XFER is
supplied wherever such a transfer is setup. We can drop
USBD_SHORT_XFER_OK as it has not bearing on number of TDs
 1.3.2.2  05-Apr-2017  snj Pull up following revision(s) (requested by skrll in ticket #1395):
share/man/man4/axe.4: netbsd-7-nhusb
share/man/man4/axen.4: netbsd-7-nhusb
share/man/man4/cdce.4: netbsd-7-nhusb
share/man/man4/uaudio.4: netbsd-7-nhusb
share/man/man4/ucom.4: netbsd-7-nhusb
share/man/man4/uep.4: netbsd-7-nhusb
share/man/man4/urtw.4: netbsd-7-nhusb
share/man/man4/usb.4: netbsd-7-nhusb
share/man/man4/uyap.4: netbsd-7-nhusb
share/man/man4/xhci.4: netbsd-7-nhusb
share/man/man9/usbdi.9: netbsd-7-nhusb
sys/arch/amd64/conf/ALL: netbsd-7-nhusb
sys/arch/amd64/conf/GENERIC: netbsd-7-nhusb
sys/arch/amiga/dev/slhci_zbus.c: netbsd-7-nhusb
sys/arch/arm/allwinner/awin_otg.c: netbsd-7-nhusb
sys/arch/arm/allwinner/awin_usb.c: netbsd-7-nhusb
sys/arch/arm/amlogic/amlogic_dwctwo.c: netbsd-7-nhusb
sys/arch/arm/at91/at91ohci.c: netbsd-7-nhusb
sys/arch/arm/broadcom/bcm2835_dwctwo.c: netbsd-7-nhusb
sys/arch/arm/broadcom/bcm53xx_usb.c: netbsd-7-nhusb
sys/arch/arm/ep93xx/epohci.c: netbsd-7-nhusb
sys/arch/arm/gemini/obio_ehci.c: netbsd-7-nhusb
sys/arch/arm/imx/files.imx23: netbsd-7-nhusb
sys/arch/arm/imx/imxusb.c: netbsd-7-nhusb
sys/arch/arm/imx/imxusbreg.h: netbsd-7-nhusb
sys/arch/arm/omap/obio_ohci.c: netbsd-7-nhusb
sys/arch/arm/omap/omap3_ehci.c: netbsd-7-nhusb
sys/arch/arm/omap/omapl1x_ohci.c: netbsd-7-nhusb
sys/arch/arm/omap/tiotg.c: netbsd-7-nhusb
sys/arch/arm/s3c2xx0/ohci_s3c24x0.c: netbsd-7-nhusb
sys/arch/arm/samsung/exynos_usb.c: netbsd-7-nhusb
sys/arch/arm/xscale/pxa2x0_ohci.c: netbsd-7-nhusb
sys/arch/arm/zynq/zynq_usb.c: netbsd-7-nhusb
sys/arch/hpcarm/dev/nbp_slhci.c: netbsd-7-nhusb
sys/arch/hpcmips/dev/plumohci.c: netbsd-7-nhusb
sys/arch/i386/conf/ALL: netbsd-7-nhusb
sys/arch/i386/conf/GENERIC: netbsd-7-nhusb
sys/arch/i386/pci/gcscehci.c: netbsd-7-nhusb
sys/arch/luna68k/conf/GENERIC: netbsd-7-nhusb
sys/arch/mips/adm5120/dev/ahci.c: netbsd-7-nhusb
sys/arch/mips/adm5120/dev/ahcivar.h: netbsd-7-nhusb
sys/arch/mips/alchemy/dev/ohci_aubus.c: netbsd-7-nhusb
sys/arch/mips/atheros/dev/ehci_arbus.c: netbsd-7-nhusb
sys/arch/mips/atheros/dev/ohci_arbus.c: netbsd-7-nhusb
sys/arch/mips/conf/files.adm5120: netbsd-7-nhusb
sys/arch/mips/ralink/ralink_ehci.c: netbsd-7-nhusb
sys/arch/mips/ralink/ralink_ohci.c: netbsd-7-nhusb
sys/arch/mips/rmi/rmixl_ehci.c: netbsd-7-nhusb
sys/arch/mips/rmi/rmixl_ohci.c: netbsd-7-nhusb
sys/arch/playstation2/dev/ohci_sbus.c: netbsd-7-nhusb
sys/arch/powerpc/booke/dev/pq3ehci.c: netbsd-7-nhusb
sys/arch/powerpc/ibm4xx/dev/dwctwo_plb.c: netbsd-7-nhusb
sys/arch/x68k/dev/slhci_intio.c: netbsd-7-nhusb
sys/conf/files: netbsd-7-nhusb
sys/dev/cardbus/ehci_cardbus.c: netbsd-7-nhusb
sys/dev/cardbus/ohci_cardbus.c: netbsd-7-nhusb
sys/dev/cardbus/uhci_cardbus.c: netbsd-7-nhusb
sys/dev/ic/sl811hs.c: netbsd-7-nhusb
sys/dev/ic/sl811hsvar.h: netbsd-7-nhusb
sys/dev/isa/slhci_isa.c: netbsd-7-nhusb
sys/dev/marvell/ehci_mv.c: netbsd-7-nhusb
sys/dev/pci/ehci_pci.c: netbsd-7-nhusb
sys/dev/pci/ohci_pci.c: netbsd-7-nhusb
sys/dev/pci/uhci_pci.c: netbsd-7-nhusb
sys/dev/pci/xhci_pci.c: netbsd-7-nhusb
sys/dev/pcmcia/slhci_pcmcia.c: netbsd-7-nhusb
sys/dev/usb/Makefile.usbdevs: netbsd-7-nhusb
sys/dev/usb/TODO: netbsd-7-nhusb
sys/dev/usb/TODO.usbmp: netbsd-7-nhusb
sys/dev/usb/aubtfwl.c: netbsd-7-nhusb
sys/dev/usb/auvitek.c: netbsd-7-nhusb
sys/dev/usb/auvitek_audio.c: netbsd-7-nhusb
sys/dev/usb/auvitek_dtv.c: netbsd-7-nhusb
sys/dev/usb/auvitek_i2c.c: netbsd-7-nhusb
sys/dev/usb/auvitek_video.c: netbsd-7-nhusb
sys/dev/usb/auvitekvar.h: netbsd-7-nhusb
sys/dev/usb/ehci.c: netbsd-7-nhusb
sys/dev/usb/ehcireg.h: netbsd-7-nhusb
sys/dev/usb/ehcivar.h: netbsd-7-nhusb
sys/dev/usb/emdtv.c: netbsd-7-nhusb
sys/dev/usb/emdtv_dtv.c: netbsd-7-nhusb
sys/dev/usb/emdtv_ir.c: netbsd-7-nhusb
sys/dev/usb/emdtvvar.h: netbsd-7-nhusb
sys/dev/usb/ezload.c: netbsd-7-nhusb
sys/dev/usb/ezload.h: netbsd-7-nhusb
sys/dev/usb/files.usb: netbsd-7-nhusb
sys/dev/usb/hid.c: netbsd-7-nhusb
sys/dev/usb/hid.h: netbsd-7-nhusb
sys/dev/usb/if_athn_usb.c: netbsd-7-nhusb
sys/dev/usb/if_athn_usb.h: netbsd-7-nhusb
sys/dev/usb/if_atu.c: netbsd-7-nhusb
sys/dev/usb/if_atureg.h: netbsd-7-nhusb
sys/dev/usb/if_aue.c: netbsd-7-nhusb
sys/dev/usb/if_auereg.h: netbsd-7-nhusb
sys/dev/usb/if_axe.c: netbsd-7-nhusb
sys/dev/usb/if_axen.c: netbsd-7-nhusb
sys/dev/usb/if_axenreg.h: netbsd-7-nhusb
sys/dev/usb/if_axereg.h: netbsd-7-nhusb
sys/dev/usb/if_cdce.c: netbsd-7-nhusb
sys/dev/usb/if_cdcereg.h: netbsd-7-nhusb
sys/dev/usb/if_cue.c: netbsd-7-nhusb
sys/dev/usb/if_cuereg.h: netbsd-7-nhusb
sys/dev/usb/if_kue.c: netbsd-7-nhusb
sys/dev/usb/if_kuereg.h: netbsd-7-nhusb
sys/dev/usb/if_otus.c: netbsd-7-nhusb
sys/dev/usb/if_otusvar.h: netbsd-7-nhusb
sys/dev/usb/if_rum.c: netbsd-7-nhusb
sys/dev/usb/if_rumreg.h: netbsd-7-nhusb
sys/dev/usb/if_rumvar.h: netbsd-7-nhusb
sys/dev/usb/if_run.c: netbsd-7-nhusb
sys/dev/usb/if_runvar.h: netbsd-7-nhusb
sys/dev/usb/if_smsc.c: netbsd-7-nhusb
sys/dev/usb/if_smscreg.h: netbsd-7-nhusb
sys/dev/usb/if_smscvar.h: netbsd-7-nhusb
sys/dev/usb/if_udav.c: netbsd-7-nhusb
sys/dev/usb/if_udavreg.h: netbsd-7-nhusb
sys/dev/usb/if_upgt.c: netbsd-7-nhusb
sys/dev/usb/if_upgtvar.h: netbsd-7-nhusb
sys/dev/usb/if_upl.c: netbsd-7-nhusb
sys/dev/usb/if_ural.c: netbsd-7-nhusb
sys/dev/usb/if_uralreg.h: netbsd-7-nhusb
sys/dev/usb/if_uralvar.h: netbsd-7-nhusb
sys/dev/usb/if_url.c: netbsd-7-nhusb
sys/dev/usb/if_urlreg.h: netbsd-7-nhusb
sys/dev/usb/if_urndis.c: netbsd-7-nhusb
sys/dev/usb/if_urndisreg.h: netbsd-7-nhusb
sys/dev/usb/if_urtw.c: netbsd-7-nhusb
sys/dev/usb/if_urtwn.c: netbsd-7-nhusb
sys/dev/usb/if_urtwn_data.h: netbsd-7-nhusb
sys/dev/usb/if_urtwnreg.h: netbsd-7-nhusb
sys/dev/usb/if_urtwnvar.h: netbsd-7-nhusb
sys/dev/usb/if_urtwreg.h: netbsd-7-nhusb
sys/dev/usb/if_zyd.c: netbsd-7-nhusb
sys/dev/usb/if_zydreg.h: netbsd-7-nhusb
sys/dev/usb/irmce.c: netbsd-7-nhusb
sys/dev/usb/moscom.c: netbsd-7-nhusb
sys/dev/usb/motg.c: netbsd-7-nhusb
sys/dev/usb/motgvar.h: netbsd-7-nhusb
sys/dev/usb/ohci.c: netbsd-7-nhusb
sys/dev/usb/ohcireg.h: netbsd-7-nhusb
sys/dev/usb/ohcivar.h: netbsd-7-nhusb
sys/dev/usb/pseye.c: netbsd-7-nhusb
sys/dev/usb/slurm.c: netbsd-7-nhusb
sys/dev/usb/stuirda.c: netbsd-7-nhusb
sys/dev/usb/u3g.c: netbsd-7-nhusb
sys/dev/usb/uark.c: netbsd-7-nhusb
sys/dev/usb/uatp.c: netbsd-7-nhusb
sys/dev/usb/uaudio.c: netbsd-7-nhusb
sys/dev/usb/uberry.c: netbsd-7-nhusb
sys/dev/usb/ubsa.c: netbsd-7-nhusb
sys/dev/usb/ubsa_common.c: netbsd-7-nhusb
sys/dev/usb/ubsavar.h: netbsd-7-nhusb
sys/dev/usb/ubt.c: netbsd-7-nhusb
sys/dev/usb/uchcom.c: netbsd-7-nhusb
sys/dev/usb/ucom.c: netbsd-7-nhusb
sys/dev/usb/ucomvar.h: netbsd-7-nhusb
sys/dev/usb/ucycom.c: netbsd-7-nhusb
sys/dev/usb/udl.c: netbsd-7-nhusb
sys/dev/usb/udl.h: netbsd-7-nhusb
sys/dev/usb/udsbr.c: netbsd-7-nhusb
sys/dev/usb/udsir.c: netbsd-7-nhusb
sys/dev/usb/uep.c: netbsd-7-nhusb
sys/dev/usb/uftdi.c: netbsd-7-nhusb
sys/dev/usb/uftdireg.h: netbsd-7-nhusb
sys/dev/usb/ugen.c: netbsd-7-nhusb
sys/dev/usb/ugensa.c: netbsd-7-nhusb
sys/dev/usb/uhci.c: netbsd-7-nhusb
sys/dev/usb/uhcireg.h: netbsd-7-nhusb
sys/dev/usb/uhcivar.h: netbsd-7-nhusb
sys/dev/usb/uhid.c: netbsd-7-nhusb
sys/dev/usb/uhidev.c: netbsd-7-nhusb
sys/dev/usb/uhidev.h: netbsd-7-nhusb
sys/dev/usb/uhmodem.c: netbsd-7-nhusb
sys/dev/usb/uhso.c: netbsd-7-nhusb
sys/dev/usb/uhub.c: netbsd-7-nhusb
sys/dev/usb/uipad.c: netbsd-7-nhusb
sys/dev/usb/uipaq.c: netbsd-7-nhusb
sys/dev/usb/uirda.c: netbsd-7-nhusb
sys/dev/usb/uirdavar.h: netbsd-7-nhusb
sys/dev/usb/ukbd.c: netbsd-7-nhusb
sys/dev/usb/ukbdmap.c: netbsd-7-nhusb
sys/dev/usb/ukyopon.c: netbsd-7-nhusb
sys/dev/usb/ukyopon.h: netbsd-7-nhusb
sys/dev/usb/ulpt.c: netbsd-7-nhusb
sys/dev/usb/umass.c: netbsd-7-nhusb
sys/dev/usb/umass_isdata.c: netbsd-7-nhusb
sys/dev/usb/umass_isdata.h: netbsd-7-nhusb
sys/dev/usb/umass_quirks.c: netbsd-7-nhusb
sys/dev/usb/umass_quirks.h: netbsd-7-nhusb
sys/dev/usb/umass_scsipi.c: netbsd-7-nhusb
sys/dev/usb/umass_scsipi.h: netbsd-7-nhusb
sys/dev/usb/umassvar.h: netbsd-7-nhusb
sys/dev/usb/umcs.c: netbsd-7-nhusb
sys/dev/usb/umct.c: netbsd-7-nhusb
sys/dev/usb/umidi.c: netbsd-7-nhusb
sys/dev/usb/umidi_quirks.c: netbsd-7-nhusb
sys/dev/usb/umidi_quirks.h: netbsd-7-nhusb
sys/dev/usb/umodem.c: netbsd-7-nhusb
sys/dev/usb/umodem_common.c: netbsd-7-nhusb
sys/dev/usb/umodemvar.h: netbsd-7-nhusb
sys/dev/usb/ums.c: netbsd-7-nhusb
sys/dev/usb/uplcom.c: netbsd-7-nhusb
sys/dev/usb/urio.c: netbsd-7-nhusb
sys/dev/usb/urio.h: netbsd-7-nhusb
sys/dev/usb/usb.c: netbsd-7-nhusb
sys/dev/usb/usb.h: netbsd-7-nhusb
sys/dev/usb/usb_mem.c: netbsd-7-nhusb
sys/dev/usb/usb_mem.h: netbsd-7-nhusb
sys/dev/usb/usb_quirks.c: netbsd-7-nhusb
sys/dev/usb/usb_quirks.h: netbsd-7-nhusb
sys/dev/usb/usb_subr.c: netbsd-7-nhusb
sys/dev/usb/usbdevices.config: netbsd-7-nhusb
sys/dev/usb/usbdevs: netbsd-7-nhusb
sys/dev/usb/usbdevs.h: netbsd-7-nhusb
sys/dev/usb/usbdevs_data.h: netbsd-7-nhusb
sys/dev/usb/usbdi.c: netbsd-7-nhusb
sys/dev/usb/usbdi.h: netbsd-7-nhusb
sys/dev/usb/usbdi_util.c: netbsd-7-nhusb
sys/dev/usb/usbdi_util.h: netbsd-7-nhusb
sys/dev/usb/usbdivar.h: netbsd-7-nhusb
sys/dev/usb/usbhid.h: netbsd-7-nhusb
sys/dev/usb/usbhist.h: netbsd-7-nhusb
sys/dev/usb/usbroothub.c: netbsd-7-nhusb
sys/dev/usb/usbroothub.h: netbsd-7-nhusb
sys/dev/usb/usbroothub_subr.c: delete
sys/dev/usb/usbroothub_subr.h: delete
sys/dev/usb/uscanner.c: netbsd-7-nhusb
sys/dev/usb/uslsa.c: netbsd-7-nhusb
sys/dev/usb/usscanner.c: netbsd-7-nhusb
sys/dev/usb/ustir.c: netbsd-7-nhusb
sys/dev/usb/uthum.c: netbsd-7-nhusb
sys/dev/usb/utoppy.c: netbsd-7-nhusb
sys/dev/usb/uts.c: netbsd-7-nhusb
sys/dev/usb/uvideo.c: netbsd-7-nhusb
sys/dev/usb/uvisor.c: netbsd-7-nhusb
sys/dev/usb/uvscom.c: netbsd-7-nhusb
sys/dev/usb/uyap.c: netbsd-7-nhusb
sys/dev/usb/uyap_firmware.h: netbsd-7-nhusb
sys/dev/usb/uyurex.c: netbsd-7-nhusb
sys/dev/usb/x1input_rdesc.h: netbsd-7-nhusb
sys/dev/usb/xhci.c: netbsd-7-nhusb
sys/dev/usb/xhcireg.h: netbsd-7-nhusb
sys/dev/usb/xhcivar.h: netbsd-7-nhusb
sys/dev/usb/xinput_rdesc.h: netbsd-7-nhusb
sys/external/bsd/common/conf/files.linux: netbsd-7-nhusb
sys/external/bsd/common/include/linux/err.h: netbsd-7-nhusb
sys/external/bsd/common/include/linux/kernel.h: netbsd-7-nhusb
sys/external/bsd/common/include/linux/workqueue.h: netbsd-7-nhusb
sys/external/bsd/common/linux/linux_work.c: netbsd-7-nhusb
sys/external/bsd/drm2/dist/drm/radeon/atombios_encoders.c: netbsd-7-nhusb
sys/external/bsd/drm2/dist/drm/radeon/radeon_legacy_encoders.c: netbsd-7-nhusb
sys/external/bsd/drm2/drm/files.drmkms: netbsd-7-nhusb
sys/external/bsd/drm2/i915drm/files.i915drmkms: netbsd-7-nhusb
sys/external/bsd/drm2/include/linux/err.h: delete
sys/external/bsd/drm2/include/linux/workqueue.h: delete
sys/external/bsd/drm2/linux/files.drmkms_linux: netbsd-7-nhusb
sys/external/bsd/drm2/linux/linux_work.c: delete
sys/external/bsd/dwc2/dwc2.c: netbsd-7-nhusb
sys/external/bsd/dwc2/dwc2.h: netbsd-7-nhusb
sys/external/bsd/dwc2/dwc2var.h: netbsd-7-nhusb
sys/external/bsd/dwc2/dwctwo2netbsd: netbsd-7-nhusb
sys/external/bsd/dwc2/conf/files.dwc2: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_core.c: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_core.h: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_coreintr.c: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_hcd.c: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_hcd.h: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_hcdddma.c: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_hcdintr.c: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_hcdqueue.c: netbsd-7-nhusb
sys/external/bsd/dwc2/dist/dwc2_hw.h: netbsd-7-nhusb
sys/modules/drmkms_linux/Makefile: netbsd-7-nhusb
sys/modules/i915drmkms/Makefile: netbsd-7-nhusb
sys/rump/dev/lib/libugenhc/ugenhc.c: netbsd-7-nhusb
sys/rump/dev/lib/libusb/Makefile: netbsd-7-nhusb
sys/rump/dev/lib/libusb/USB.ioconf: netbsd-7-nhusb
sys/rump/dev/lib/libusb/usb_at_ugenhc.c: delete
sys/rump/dev/lib/libusb/opt/opt_usb.h: delete
sys/rump/dev/lib/libusb/opt/opt_usbverbose.h: delete
sys/sys/mbuf.h: netbsd-7-nhusb
usr.sbin/usbdevs/usbdevs.8: netbsd-7-nhusb
usr.sbin/usbdevs/usbdevs.c: netbsd-7-nhusb
Merge netbsd-7-nhusb:
- API / infrastructure changes to support memory management changes.
- Memory management improvements and bug fixes.
- HCDs should now be MP safe
- conversion to KERNHIST based debug
- FS/LS isoc support on ehci(4).
- conversion to kmem(9)
- Some USB 3 support - mostly from Takahiro HAYASHI (t-hash).
- interrupt transfers now get proper DMA operations
- general bug fixes
- kern/48308
- uhub status notification improvements
- umass(4) probe fix (applied to HEAD already)
- ohci(4) short transfer fix
- Change the SOFTINT level from NET to SERIAL for the USB softint handler.
This gives the callback a chance of running when another softint handler
at SOFTINT_NET has blocked holding a lock, e.g. softnet_lock and most of
the network stack.
- kern/49065 - ifconfig tun0 ... sequence locks up system / lockup:
softnet_lock held across usb xfr
- kern/50491 - unkillable wait in usbd_transfer while using usmsc0
on raspberry pi 2
- kern/51395 - USB Ethernet makes xhci hang
- Various improvements to slhci(4)
- Various improvements to dwc2(4)
 1.3.2.1  14-Feb-2015  snj branches: 1.3.2.1.4;
Pull up following revision(s) (requested by nonaka in ticket #512):
sys/dev/usb/if_axen.c: revision 1.4
Apply PR kern/49659 patch from Takahiro HAYASHI.
 1.3.2.1.4.2  26-Jan-2017  skrll Sync with HEAD/nhusb
 1.3.2.1.4.1  06-Sep-2016  skrll First pass at netbsd-7 updated with USB code from HEAD
 1.9.2.1  07-Jan-2017  pgoyette Sync with HEAD. (Note that most of these changes are simply $NetBSD$
tag issues.)
 1.11.8.9  28-Aug-2020  martin Pull up following revision(s) (requested by riastradh in ticket #1599):

sys/dev/usb/if_atu.c: revision 1.73
sys/dev/usb/if_axe.c: apply patch
sys/dev/usb/if_axen.c: apply patch

atu(4): Reject packets larger than MCLBYTES.
 1.11.8.8  13-May-2019  martin Pull up the following, via patch, requested by msaitoh in ticket #1263:

sys/dev/mii/brgphy.c 1.84
sys/dev/mii/ciphy.c 1.33 via patch
sys/dev/mii/rgephy.c 1.53
sys/arch/arm/imx/if_enet.c 1.18
sys/arch/mips/adm5120/dev/if_admsw.c 1.19-1.20
sys/dev/pci/if_bge.c 1.329
sys/dev/pci/if_bnx.c 1.81
sys/dev/pci/if_et.c 1.21
sys/dev/pci/if_lii.c 1.22
sys/dev/pci/if_msk.c 1.87
sys/dev/pci/if_nfe.c 1.68
sys/dev/pci/if_sk.c 1.95
sys/dev/pci/if_ti.c 1.107
sys/dev/pci/if_txp.c 1.52
sys/dev/pci/if_vge.c 1.69
sys/dev/usb/if_axen.c 1.38
sys/dev/usb/if_aue.c 1.149

Fix a bug that the duplex of manual media setting may be wrong
when the IFM_GMASK bit other than IFM_[FH]DX is set.
 1.11.8.7  20-Feb-2019  martin Pull up following revision(s) (requested by rin in ticket #1194):

sys/dev/usb/if_axen.c: revision 1.26
sys/dev/usb/if_axenreg.h: revision 1.7

Remove unused variable in axen_softc.

Drop AXEN_MEDIUM_ALWAYS_ONE (from Linux), which reduces drop erros in RX.
 1.11.8.6  19-Feb-2019  martin Pull up following revision(s) (requested by rin in ticket #1192):

sys/dev/usb/if_axen.c: revision 1.27
sys/dev/usb/if_axenreg.h: revision 1.6
sys/dev/usb/if_axen.c: revision 1.32
sys/dev/usb/if_axen.c: revision 1.35
sys/dev/usb/if_axen.c: revision 1.37
sys/dev/usb/if_axenreg.h: revision 1.10
sys/dev/usb/if_axenreg.h: revision 1.11
sys/dev/usb/if_axen.c: revision 1.24

Correct error bits in RX packet header:
- Drop error is bit 31.
- CRC error is bit 29.
- Distinguish the two errors in debug printf.

Cosmetic changes; no functional changes.

Add couple of error printf.

XXX We should not to use aprint_xxx() for non-autoconf staffs.

Add ratecheck for TX errors for axen(4) and mue(4).

Remove unused.
 1.11.8.5  19-Feb-2019  martin Pull up following revision(s) (requested by rin in ticket #1191):

sys/dev/usb/if_axen.c: revision 1.28
sys/dev/usb/if_axen.c: revision 1.29
sys/dev/usb/if_axenreg.h: revision 1.4
sys/dev/usb/if_axenreg.h: revision 1.5
sys/dev/usb/if_axen.c: revision 1.19
sys/dev/usb/if_axenreg.h: revision 1.8
sys/dev/usb/if_axen.c: revision 1.30
sys/dev/usb/if_axen.c: revision 1.31
sys/dev/usb/if_axen.c: revision 1.36
sys/dev/usb/if_axen.c: revision 1.20
sys/dev/usb/if_axen.c: revision 1.23
sys/dev/usb/if_axen.c: revision 1.25

Fix HW checksum offloading.
- Enable ones specified in if_capenable and remove AXEN_TOE macro.
- Check correct bit and set appropriate csum_flags.
- Pass packets of wrong checksum to upper layer instead of dropping them.
- Fix value of AXEN_RXHDR_L3_TYPE_MASK.

Tested on ASIX Elec. Corp. (0xb95) AX88179 (0x1790).

Fix previous:
- axen_coe() should be called from axen_init(), not axen_ax88179_init().
- Simplify logic in axen_coe(); AXEN_[RT]XCOE_OFF = 0.

Enable hash-table-based multicast filter:
- Drop AXEN_RXCTL_ACPT_PHY_MCAST bit (neither Linux nor FreeBSD sets it).
- 0x0010 bit is not AXEN_RXCTL_ACPT_BCAST ("accept broadcast") but
AXEN_RXCTL_ACPT_MCAST ("accept multicast (hash-table-based)").

Remove useless memset.

Fix padding for a full length USB packet in TX:
- Update boundary length for SS mode, taken from OpenBSD.
- Make sure everything passed to the adapter is little endian.
- Specify padding bits in a similar manner to Linux.

XXX I wonder whether this is really necessary...

Support TSOv4 (They call it LSOv1).
The adapter does not support TSOv6 (aka LSOv2).

Fix previous.

Oops, fix previous again. Really support TSOv4.

Use unsigned variables for buffer length to avoid compiler warnings.
 1.11.8.4  19-Feb-2019  martin Pull up following revision(s) (requested by rin in ticket #1190):

sys/dev/usb/if_axen.c: revision 1.21
sys/dev/usb/if_axen.c: revision 1.22

Enable AXEN_RXCTL_START bit only when RX is ready. Otherwise,
the adapter eventually falls into "no carrier" state while it
is not running.

In axen_tick_task(), call axen_miibus_statchg() when link is lost
(like other drivers). Otherwise, link can be lost forever, which
results in sysmtem freeze.

Drop AXEN_MEDIUM_ALWAYS_ONE (from Linux), which reduces drop erros in RX.
 1.11.8.3  07-Feb-2019  msaitoh Pullup the following revisions (requested by martin in ticket #1182):
sys/dev/usb/if_axen.c 1.14
share/man/man4/axen.4 1.7

Andrius V in Pr kern/53461: add D-Link DUB-1312
 1.11.8.2  08-Aug-2018  martin Pull up following revision(s) (requested by riastradh in ticket #963):

sys/dev/usb/if_cue.c: revision 1.80
sys/dev/usb/umcs.c: revision 1.11
sys/dev/usb/umcs.c: revision 1.12
sys/dev/usb/if_ural.c: revision 1.56
sys/dev/usb/if_run.c: revision 1.28
sys/dev/usb/if_ural.c: revision 1.57
sys/dev/usb/if_run.c: revision 1.29
sys/dev/usb/uatp.c: revision 1.16
sys/dev/usb/uatp.c: revision 1.17
sys/dev/usb/if_axe.c: revision 1.91
sys/dev/usb/if_axe.c: revision 1.92
sys/dev/usb/if_zyd.c: revision 1.49
sys/dev/usb/if_axen.c: revision 1.15
sys/dev/usb/if_url.c: revision 1.60
sys/dev/usb/if_udav.c: revision 1.54
sys/dev/usb/if_axen.c: revision 1.16
sys/dev/usb/if_udav.c: revision 1.55
sys/dev/usb/if_athn_usb.c: revision 1.28
sys/dev/usb/if_athn_usb.c: revision 1.29
sys/dev/usb/if_urtw.c: revision 1.16
sys/dev/usb/if_urtw.c: revision 1.17
sys/dev/usb/if_cue.c: revision 1.79
sys/dev/usb/if_rum.c: revision 1.62
sys/dev/usb/if_urtwn.c: revision 1.61
sys/dev/usb/if_rum.c: revision 1.63
sys/dev/usb/if_urtwn.c: revision 1.63
sys/dev/usb/usb.c: revision 1.170
sys/dev/usb/usb.c: revision 1.171
sys/dev/usb/if_smsc.c: revision 1.35
sys/dev/usb/if_smsc.c: revision 1.36
sys/dev/usb/if_zyd.c: revision 1.50
sys/dev/usb/if_aue.c: revision 1.144
sys/dev/usb/if_aue.c: revision 1.145
sys/dev/usb/usb_subr.c: revision 1.225
sys/dev/usb/usb_subr.c: revision 1.226
sys/dev/usb/if_upgt.c: revision 1.21
sys/dev/usb/usbdi.h: revision 1.93
sys/dev/usb/if_upgt.c: revision 1.22
sys/dev/usb/if_url.c: revision 1.59
sys/dev/usb/usbdi.h: revision 1.95
sys/dev/usb/if_otus.c: revision 1.34
sys/dev/usb/if_atu.c: revision 1.62
sys/dev/usb/if_otus.c: revision 1.35
sys/dev/usb/if_atu.c: revision 1.63

New function usb_rem_task_wait(dev, task, queue).

If task is scheduled to run, removes it from the queue. If it may
have already begun to run, waits for it to complete. Caller must
guarantee it will not switch to another queue. If caller guarantees
it will not be scheduled again, then usb_rem_task_wait guarantees it
is not running on return.

This will enable us to fix a litany of bugs in detach where we
currently fail to wait for a pending task.

Use usb_rem_task_wait in various drivers.
 1.11.8.1  31-Jan-2018  martin Pull up following revision(s) (requested by skrll in ticket #509):
sys/dev/usb/if_ural.c: revision 1.53
sys/dev/usb/if_run.c: revision 1.25
sys/dev/usb/ustir.c: revision 1.39
sys/dev/usb/irmce.c: revision 1.4
sys/dev/usb/if_urtwn.c: revision 1.56
sys/dev/usb/pseye.c: revision 1.24
sys/dev/usb/if_rum.c: revision 1.59
sys/dev/usb/if_upl.c: revision 1.61
sys/dev/usb/ucom.c: revision 1.120
sys/dev/usb/if_zyd.c: revision 1.45
sys/dev/usb/if_axen.c: revision 1.12
sys/dev/usb/umidi.c: revision 1.74
sys/dev/usb/if_udav.c: revision 1.52
sys/dev/usb/if_athn_usb.c: revision 1.25
sys/dev/usb/usscanner.c: revision 1.43
sys/dev/usb/ualea.c: revision 1.6 - 1.9
sys/dev/usb/if_upgt.c: revision 1.18
sys/dev/usb/if_atu.c: revision 1.56
sys/dev/usb/utoppy.c: revision 1.30
sys/dev/usb/ubt.c: revision 1.60
sys/dev/usb/if_urtw.c: revision 1.14
sys/dev/usb/uirda.c: revision 1.43
sys/dev/usb/umass.c: revision 1.163
sys/dev/usb/if_cdce.c: revision 1.45
sys/dev/usb/if_cue.c: revision 1.77
sys/dev/usb/if_kue.c: revision 1.91
sys/dev/usb/uvideo.c: revision 1.46
sys/dev/usb/uhso.c: revision 1.27
sys/dev/usb/if_smsc.c: revision 1.33
sys/dev/usb/ugen.c: revision 1.137
sys/dev/usb/if_axe.c: revision 1.84
sys/dev/usb/if_aue.c: revision 1.142
sys/dev/usb/uscanner.c: revision 1.82
sys/dev/usb/if_urndis.c: revision 1.17
sys/dev/usb/udsir.c: revision 1.6
sys/dev/usb/if_url.c: revision 1.57
sys/dev/usb/if_otus.c: revision 1.32
sys/dev/usb/ulpt.c: revision 1.99

PR kern/52931 Kernel panics with Atheros usb wireless interface
Audit the flags to usbd_create_xfer so that USBD_FORCE_SHORT_XFER is
supplied wherever such a transfer is setup. We can drop
USBD_SHORT_XFER_OK as it has not bearing on number of TDs

ualea: Tidy up a bit. Fulfil requests completely.
Don't subtract uninitialized pktsize in error path.
 1.12.2.4  26-Jan-2019  pgoyette Sync with HEAD
 1.12.2.3  30-Sep-2018  pgoyette Ssync with HEAD
 1.12.2.2  06-Sep-2018  pgoyette Sync with HEAD

Resolve a couple of conflicts (result of the uimin/uimax changes)
 1.12.2.1  28-Jul-2018  pgoyette Sync with HEAD
 1.13.2.2  13-Apr-2020  martin Mostly merge changes from HEAD upto 20200411
 1.13.2.1  10-Jun-2019  christos Sync with HEAD
 1.50.2.1  01-Sep-2019  martin Pull up following revision(s) (requested by mrg in ticket #135):

distrib/sets/lists/comp/mi 1.2279
distrib/sets/lists/modules/mi 1.123
share/man/man9/Makefile 1.438
share/man/man9/usbnet.9 1.1-1.9
sys/dev/ic/rndisreg.h 1.3
sys/dev/usb/TODO 1.47-1.52
sys/dev/usb/TODO.usbmp 1.15,1.16
sys/dev/usb/files.usb 1.157-1.167
sys/dev/usb/if_aue.c 1.155-1.161
sys/dev/usb/if_auereg.h 1.30-1.32
sys/dev/usb/if_axe.c 1.103-1.119
sys/dev/usb/if_axen.c 1.51-1.53,1.55-1.67
sys/dev/usb/if_axenreg.h 1.15
sys/dev/usb/if_cdce.c 1.54-1.67
sys/dev/usb/if_cue.c 1.85,1.86
sys/dev/usb/if_cuereg.h 1.23
sys/dev/usb/if_kue.c 1.97-1.100
sys/dev/usb/if_kuereg.h 1.23,1.24
sys/dev/usb/if_mue.c 1.51-1.55
sys/dev/usb/if_muereg.h 1.6
sys/dev/usb/if_muevar.h 1.9
sys/dev/usb/if_smsc.c 1.46-1.61
sys/dev/usb/if_smscreg.h 1.6
sys/dev/usb/if_smscvar.h delete
sys/dev/usb/if_udav.c 1.60-1.71
sys/dev/usb/if_udavreg.h 1.14,1.15
sys/dev/usb/if_upl.c 1.65,1.66
sys/dev/usb/if_ure.c 1.15-1.31
sys/dev/usb/if_urevar.h 1.4,1.5
sys/dev/usb/if_url.c 1.67-1.70
sys/dev/usb/if_urlreg.h 1.14
sys/dev/usb/if_urndis.c 1.22-1.33
sys/dev/usb/if_urtwn.c 1.72
sys/dev/usb/ohci.c 1.290
sys/dev/usb/uhub.c 1.143
sys/dev/usb/usb.c 1.180
sys/dev/usb/usb.h 1.118
sys/dev/usb/usb_mem.c 1.71
sys/dev/usb/usb_subr.c 1.238,1.239
sys/dev/usb/usbdevs 1.772
sys/dev/usb/usbdi.c 1.183,1.186
sys/dev/usb/usbdi.h 1.97
sys/dev/usb/usbdi_util.c 1.75
sys/dev/usb/usbhist.h 1.5,1.6
sys/dev/usb/usbnet.c 1.1-1.24
sys/dev/usb/usbnet.h 1.1-1.14
sys/dev/usb/usbroothub.c 1.9
sys/dev/usb/xhci.c 1.109,1.110
sys/modules/Makefile 1.223
sys/modules/usbnet/Makefile 1.1

usbnet(9): Add common framework for USB network devices.
This bring various safety fixes to all updated drivers,
and includes locking clean up, detach safety when being
used or not, separate rx/tx locks to improve performance,
porting to NET_MPSAFE, many edge/error case bugs in
drivers fixed, as well as resovling PRs 54303 and 54308.
These drivers are converted: axe(4), axen(4), aue(4),
cdce(4), cue(4), kue(4), mue(4), smsc(4), udav(4),
upl(4), ure(4), url(4), and urndis(4).
 1.68.2.2  29-Feb-2020  ad Sync with head.
 1.68.2.1  17-Jan-2020  ad Sync with head.
 1.94.4.1  12-Apr-2025  martin Pull up following revision(s) (requested by hgutch in ticket #1091):

sys/dev/usb/if_axen.c: revision 1.95
sys/dev/usb/if_axen.c: revision 1.96

Add support for AX88179A. From sc.dying on current-users.

Use un_flags as pointed out by mrg@ thanks.

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