fix recently committed typos by msaitoh in few more places, as well as few more.
mainly s/contigous/contiguous/ and s/miliseconds/milliseconds/ in comments.

usb: usbd_close_pipe never fails. Make it return void.

Prune dead branches as a result of this change.

usb: usbd_abort_pipe never fails. Make it return void.

Prune dead branches as a result of this change.

atu(4): Reject packets larger than MCLBYTES.

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.

PR/55068: sc.dying: Fix printf formats:
- no %s/%p for kernel log
- 0x% -> %#
- always %j for kernel log

Adopt <net/if_stats.h>.

branches: 1.69.2;
s/transfered/transferred/

Remove SIOC[GS]IFMEDIA because ieee80211_ioctl() does the same thing.

minor adjustments, to avoid warnings on debug builds

localify

branches: 1.65.2;
remove explicit 'extern struct cfdriver <my>_cd;' and use ioconf.h

No functional change:
- u_int_{8,16,32}_t -> uint_{8,16,32}_t
- KNF.
- Tabify.
- Remove extra space.

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@

Use usb_rem_task_wait in atu(4).

branches: 1.61.2;
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.

constify

It's not required to include net/bpfdesc.h. Remove it.

Constify atu_devs[] so that it lands in .rodata (600 bytes).

GC private 802.11 rateset declarations, use the standard ones.

Build tested only.

branches: 1.56.2;
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

branches: 1.55.8;
+#include "opt_usb.h"

branches: 1.54.2;
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.

Introduce M_CLEARCTX and use it instead of open-coding rcvif

No functional change.

Use M_GETCTX

No functional change.

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

branches: 1.50.2;
src is too big these days to tolerate superfluous apostrophes. It's
"its", people!

branches: 1.49.10; 1.49.14;
remove trailing whitespace

- Add a USBD_MPSAFE flag to usbd_open_pipe. If not set, acquire KERNEL_LOCK
before invoking xfer callbacks on this pipe.
- Add an extra flags parameter to usb_init_task. If USBD_TASKQ_MPSAFE is not
present, acquire KERNEL_LOCK before invoking the task callback.

fix debug variables.
- include opt_usb.h in usb.h so that USB_DEBUG gets set properly in it.
- normalize and sort debugging variables

- need opt_usb.h if depending on USB_DEBUG
- remove trailing whitespace
- add missing KERNEL_RCSID

Consistent/Correct error message from failing usbd_set_config.

Use aprint_error_dev.

add a bunch of devices. from openbsd.

branches: 1.43.6;
Revert previous due to active usbmp branch(es).

Adjust-away inconsistent and trailing whitespace.

branches: 1.41.2; 1.41.6;
There is no doubt whether whether should have a 'h' after the 'w'.

Stop using the compatibility macros USB_ATTACH(), USB_DETACH(),
USB_MATCH(), et cetera. These files produce the same assembly
(according to objdump -d) before and after the change, except for
if_cue.c where two adjacent instructions inexplicably change order.

Only print the debug message about failed remapping when ATU_QUIRK_NO_REMAP
is not set in the atu_quirk flags.

'!' takes precedence over bitwise operation '&', so use parenthesis.

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.

branches: 1.37.2;
Remove duplicate USB_PRODUCT_LINKSYS3_WUSB11V28 entry.
Pointed out by <db@db.net> in #NetBSD-code.

Fight the ever-increasing size of src checkouts by spelling "useful"
without an extra l.

branches: 1.35.2;
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.

Simplify several device-activation hooks.

fix up USB drivers printing of autoconf information

1. expand the USB_ATTACH_SETUP macro (requested by jmcneill)

2. reorder the attach function so that the first thing it does is print
newlines.

3. after this, we can call usbd_devinfo_alloc(), which polls the device
allowing a context switch, and aprint_normal() the device information.

this avoids problems where autoconf messages are getting mixed up.

Change spaces to tabs and remove some unnecessary parentheses. No
functional change intended.

Expand <dev/usb/usb_port.h> definitions, and lightly unifdef(1).

bzero -> memset

branches: 1.29.6; 1.29.12;
Split device_t and softc for all USB device drivers, and related cosmetic
changes.

Matthias Drochner kindly reviewed this patch, and tested ums, ubt, uaudio
and ral. I tested umass myself.

branches: 1.28.16; 1.28.18; 1.28.20; 1.28.22;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.27.6; 1.27.8; 1.27.12;
Use printf("%zx", arg) instead of printf("%lx", (unsigned long)arg).
Use __arraycount().

Introduce different autoconf interface attributes for USB drivers
matching (and handling) a whole device and those which match an
interface only. This will allow to enforce some rules, eg that
the former don't use interface information for matching or that the
latter don't modify global device state.
The previous way left too much freedom do the drivers which led to
inconsistencies and abuse.
For now, I've not changed locators and submatch rules, this will
happen later.
There should not be any change in behaviour, except in the case of
some drivers which did behave inconsistently:
if_atu, if_axe, uep: matched the configured device in the interface
stage, but did configuration again. I've converted them to match
in the device stage.
ustir, utoppy: matched in the interface stage, but only against
vendor/device information, and used any configuration/interface
without checking. Changed to match in device stage, and added
some simple code to configure and use the first interface.
If you have one of those devices, please test!

branches: 1.25.2; 1.25.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.24.2; 1.24.6;
Spell "separate" correctly. From Zafer Aydogan.

__unused removal on arguments; approved by core.

Split the USB task queue into two parts, one for normal device tasks and
one for tasks of the host controllers. This is needed for drivers like
ural(4) that want to do synchronous USB transfers from the task handler.
Before the split timeouts could not be handled correctly as the task
thread was still blocked. From FreeBSD.

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

fix empty if

PR/34654 -- Peter Szilagyi -- add support for Belkin F5D6050 802.11b dongle

From: Jaime A Fournier: Patch to support SMC 2262WV1

branches: 1.17.6; 1.17.8;
First round at adapting to our net80211 stack. Unfinished work, but at least
won't make the machine panic.

branches: 1.16.2;
XXX: GCC uninitialized

Don't use a private variable for storing the desired ssid, the net80211 layer
provides that.
From OpenBSD.

Use device_unit().

branches: 1.13.4; 1.13.6; 1.13.8; 1.13.10; 1.13.12;
Use usbd_clear_endpoint_stall_async() when clearing endpoint stalls in
an interrupt context. From kern/32172 by darkstar@city-net.com.

branches: 1.12.2; 1.12.8;
Resolve conflicts in importation of 18-May-2005 ath(4) / net80211(9)
from FreeBSD. Introduce compatibility shims (sys/dev/ic/ath_netbsd.[ch],
sys/net80211/ieee80211_netbsd.[ch]). Update drivers (an, atu, atw,
awi, ipw, iwi, rtw, wi) for the new net80211(9) API.

Don't keep the devinfo string on the stack, instead use malloc/free.
This should cure some rare stack overflows.

branches: 1.10.4;
atu on OQO model 01 is confirmed to be working under basestation/no-WEP.
(WEP is not supported yet, it is an different issue)

OQO wifi interface needs quirks
(not confirmed if it works or not, so commented out)

OQO device still unstable on attach/whatever, so comment those entries out

add OQO model 01 devices

Misc changes from code review from someone who doesn't understand USB or
802.11 but wants this driver to work nonetheless...
o Support WEP encryption, hopefully fix PR kern/29324 from Andreas Gustafsson
o Correct ENETRESET reconfig while iface is already running
o Correct bpfilter usage
o Avoid leaking mbufs on failed TX
o Reset ieee80211 state to INIT and stop atu_task() on atu_stop()
o Don't stop interface on USB tx errs, just drop packet
o use IFQ_IS_EMPTY rather than check if_snd for NULL head

nuke trailing whitespace

Clear IFF_RUNNING flag before aborting usb pipes in atu_stop().

Really fixes kern/29326.

o Make sure interface is up before continuing with atu_start(). Should fix PR
kern/29326 as reported by Andreas Gustafsson.
o Use IFQ_DEQUEUE instead of IF_DEQUEUE

branches: 1.2.2;
It seems on some archs size_t is unsigned int and on others size_t is
unsigned long. Cast sizeof() to unsigned long in printf()'s so it can
always work regardless.

branches: 1.1.2;
Atmel AT76C50XX usb 802.11b wifi dongle driver from OpenBSD.

usb: usbd_close_pipe never fails. Make it return void.

Prune dead branches as a result of this change.

usb: usbd_abort_pipe never fails. Make it return void.

Prune dead branches as a result of this change.

atu(4): Reject packets larger than MCLBYTES.

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.

PR/55068: sc.dying: Fix printf formats:
- no %s/%p for kernel log
- 0x% -> %#
- always %j for kernel log

Adopt <net/if_stats.h>.

branches: 1.69.2;
s/transfered/transferred/

Remove SIOC[GS]IFMEDIA because ieee80211_ioctl() does the same thing.

minor adjustments, to avoid warnings on debug builds

localify

branches: 1.65.2;
remove explicit 'extern struct cfdriver <my>_cd;' and use ioconf.h

No functional change:
- u_int_{8,16,32}_t -> uint_{8,16,32}_t
- KNF.
- Tabify.
- Remove extra space.

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@

Use usb_rem_task_wait in atu(4).

branches: 1.61.2;
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.

constify

It's not required to include net/bpfdesc.h. Remove it.

Constify atu_devs[] so that it lands in .rodata (600 bytes).

GC private 802.11 rateset declarations, use the standard ones.

Build tested only.

branches: 1.56.2;
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

branches: 1.55.8;
+#include "opt_usb.h"

branches: 1.54.2;
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.

Introduce M_CLEARCTX and use it instead of open-coding rcvif

No functional change.

Use M_GETCTX

No functional change.

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

branches: 1.50.2;
src is too big these days to tolerate superfluous apostrophes. It's
"its", people!

branches: 1.49.10; 1.49.14;
remove trailing whitespace

- Add a USBD_MPSAFE flag to usbd_open_pipe. If not set, acquire KERNEL_LOCK
before invoking xfer callbacks on this pipe.
- Add an extra flags parameter to usb_init_task. If USBD_TASKQ_MPSAFE is not
present, acquire KERNEL_LOCK before invoking the task callback.

fix debug variables.
- include opt_usb.h in usb.h so that USB_DEBUG gets set properly in it.
- normalize and sort debugging variables

- need opt_usb.h if depending on USB_DEBUG
- remove trailing whitespace
- add missing KERNEL_RCSID

Consistent/Correct error message from failing usbd_set_config.

Use aprint_error_dev.

add a bunch of devices. from openbsd.

branches: 1.43.6;
Revert previous due to active usbmp branch(es).

Adjust-away inconsistent and trailing whitespace.

branches: 1.41.2; 1.41.6;
There is no doubt whether whether should have a 'h' after the 'w'.

Stop using the compatibility macros USB_ATTACH(), USB_DETACH(),
USB_MATCH(), et cetera. These files produce the same assembly
(according to objdump -d) before and after the change, except for
if_cue.c where two adjacent instructions inexplicably change order.

Only print the debug message about failed remapping when ATU_QUIRK_NO_REMAP
is not set in the atu_quirk flags.

'!' takes precedence over bitwise operation '&', so use parenthesis.

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.

branches: 1.37.2;
Remove duplicate USB_PRODUCT_LINKSYS3_WUSB11V28 entry.
Pointed out by <db@db.net> in #NetBSD-code.

Fight the ever-increasing size of src checkouts by spelling "useful"
without an extra l.

branches: 1.35.2;
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.

Simplify several device-activation hooks.

fix up USB drivers printing of autoconf information

1. expand the USB_ATTACH_SETUP macro (requested by jmcneill)

2. reorder the attach function so that the first thing it does is print
newlines.

3. after this, we can call usbd_devinfo_alloc(), which polls the device
allowing a context switch, and aprint_normal() the device information.

this avoids problems where autoconf messages are getting mixed up.

Change spaces to tabs and remove some unnecessary parentheses. No
functional change intended.

Expand <dev/usb/usb_port.h> definitions, and lightly unifdef(1).

bzero -> memset

branches: 1.29.6; 1.29.12;
Split device_t and softc for all USB device drivers, and related cosmetic
changes.

Matthias Drochner kindly reviewed this patch, and tested ums, ubt, uaudio
and ral. I tested umass myself.

branches: 1.28.16; 1.28.18; 1.28.20; 1.28.22;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.27.6; 1.27.8; 1.27.12;
Use printf("%zx", arg) instead of printf("%lx", (unsigned long)arg).
Use __arraycount().

Introduce different autoconf interface attributes for USB drivers
matching (and handling) a whole device and those which match an
interface only. This will allow to enforce some rules, eg that
the former don't use interface information for matching or that the
latter don't modify global device state.
The previous way left too much freedom do the drivers which led to
inconsistencies and abuse.
For now, I've not changed locators and submatch rules, this will
happen later.
There should not be any change in behaviour, except in the case of
some drivers which did behave inconsistently:
if_atu, if_axe, uep: matched the configured device in the interface
stage, but did configuration again. I've converted them to match
in the device stage.
ustir, utoppy: matched in the interface stage, but only against
vendor/device information, and used any configuration/interface
without checking. Changed to match in device stage, and added
some simple code to configure and use the first interface.
If you have one of those devices, please test!

branches: 1.25.2; 1.25.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.24.2; 1.24.6;
Spell "separate" correctly. From Zafer Aydogan.

__unused removal on arguments; approved by core.

Split the USB task queue into two parts, one for normal device tasks and
one for tasks of the host controllers. This is needed for drivers like
ural(4) that want to do synchronous USB transfers from the task handler.
Before the split timeouts could not be handled correctly as the task
thread was still blocked. From FreeBSD.

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

fix empty if

PR/34654 -- Peter Szilagyi -- add support for Belkin F5D6050 802.11b dongle

From: Jaime A Fournier: Patch to support SMC 2262WV1

branches: 1.17.6; 1.17.8;
First round at adapting to our net80211 stack. Unfinished work, but at least
won't make the machine panic.

branches: 1.16.2;
XXX: GCC uninitialized

Don't use a private variable for storing the desired ssid, the net80211 layer
provides that.
From OpenBSD.

Use device_unit().

branches: 1.13.4; 1.13.6; 1.13.8; 1.13.10; 1.13.12;
Use usbd_clear_endpoint_stall_async() when clearing endpoint stalls in
an interrupt context. From kern/32172 by darkstar@city-net.com.

branches: 1.12.2; 1.12.8;
Resolve conflicts in importation of 18-May-2005 ath(4) / net80211(9)
from FreeBSD. Introduce compatibility shims (sys/dev/ic/ath_netbsd.[ch],
sys/net80211/ieee80211_netbsd.[ch]). Update drivers (an, atu, atw,
awi, ipw, iwi, rtw, wi) for the new net80211(9) API.

Don't keep the devinfo string on the stack, instead use malloc/free.
This should cure some rare stack overflows.

branches: 1.10.4;
atu on OQO model 01 is confirmed to be working under basestation/no-WEP.
(WEP is not supported yet, it is an different issue)

OQO wifi interface needs quirks
(not confirmed if it works or not, so commented out)

OQO device still unstable on attach/whatever, so comment those entries out

add OQO model 01 devices

Misc changes from code review from someone who doesn't understand USB or
802.11 but wants this driver to work nonetheless...
o Support WEP encryption, hopefully fix PR kern/29324 from Andreas Gustafsson
o Correct ENETRESET reconfig while iface is already running
o Correct bpfilter usage
o Avoid leaking mbufs on failed TX
o Reset ieee80211 state to INIT and stop atu_task() on atu_stop()
o Don't stop interface on USB tx errs, just drop packet
o use IFQ_IS_EMPTY rather than check if_snd for NULL head

nuke trailing whitespace

Clear IFF_RUNNING flag before aborting usb pipes in atu_stop().

Really fixes kern/29326.

o Make sure interface is up before continuing with atu_start(). Should fix PR
kern/29326 as reported by Andreas Gustafsson.
o Use IFQ_DEQUEUE instead of IF_DEQUEUE

branches: 1.2.2;
It seems on some archs size_t is unsigned int and on others size_t is
unsigned long. Cast sizeof() to unsigned long in printf()'s so it can
always work regardless.

branches: 1.1.2;
Atmel AT76C50XX usb 802.11b wifi dongle driver from OpenBSD.

atu(4): Reject packets larger than MCLBYTES.

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.

PR/55068: sc.dying: Fix printf formats:
- no %s/%p for kernel log
- 0x% -> %#
- always %j for kernel log

Adopt <net/if_stats.h>.

branches: 1.69.2;
s/transfered/transferred/

Remove SIOC[GS]IFMEDIA because ieee80211_ioctl() does the same thing.

minor adjustments, to avoid warnings on debug builds

localify

branches: 1.65.2;
remove explicit 'extern struct cfdriver <my>_cd;' and use ioconf.h

No functional change:
- u_int_{8,16,32}_t -> uint_{8,16,32}_t
- KNF.
- Tabify.
- Remove extra space.

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@

Use usb_rem_task_wait in atu(4).

branches: 1.61.2;
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.

constify

It's not required to include net/bpfdesc.h. Remove it.

Constify atu_devs[] so that it lands in .rodata (600 bytes).

GC private 802.11 rateset declarations, use the standard ones.

Build tested only.

branches: 1.56.2;
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

branches: 1.55.8;
+#include "opt_usb.h"

branches: 1.54.2;
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.

Introduce M_CLEARCTX and use it instead of open-coding rcvif

No functional change.

Use M_GETCTX

No functional change.

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

branches: 1.50.2;
src is too big these days to tolerate superfluous apostrophes. It's
"its", people!

branches: 1.49.10; 1.49.14;
remove trailing whitespace

- Add a USBD_MPSAFE flag to usbd_open_pipe. If not set, acquire KERNEL_LOCK
before invoking xfer callbacks on this pipe.
- Add an extra flags parameter to usb_init_task. If USBD_TASKQ_MPSAFE is not
present, acquire KERNEL_LOCK before invoking the task callback.

fix debug variables.
- include opt_usb.h in usb.h so that USB_DEBUG gets set properly in it.
- normalize and sort debugging variables

- need opt_usb.h if depending on USB_DEBUG
- remove trailing whitespace
- add missing KERNEL_RCSID

Consistent/Correct error message from failing usbd_set_config.

Use aprint_error_dev.

add a bunch of devices. from openbsd.

branches: 1.43.6;
Revert previous due to active usbmp branch(es).

Adjust-away inconsistent and trailing whitespace.

branches: 1.41.2; 1.41.6;
There is no doubt whether whether should have a 'h' after the 'w'.

Stop using the compatibility macros USB_ATTACH(), USB_DETACH(),
USB_MATCH(), et cetera. These files produce the same assembly
(according to objdump -d) before and after the change, except for
if_cue.c where two adjacent instructions inexplicably change order.

Only print the debug message about failed remapping when ATU_QUIRK_NO_REMAP
is not set in the atu_quirk flags.

'!' takes precedence over bitwise operation '&', so use parenthesis.

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.

branches: 1.37.2;
Remove duplicate USB_PRODUCT_LINKSYS3_WUSB11V28 entry.
Pointed out by <db@db.net> in #NetBSD-code.

Fight the ever-increasing size of src checkouts by spelling "useful"
without an extra l.

branches: 1.35.2;
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.

Simplify several device-activation hooks.

fix up USB drivers printing of autoconf information

1. expand the USB_ATTACH_SETUP macro (requested by jmcneill)

2. reorder the attach function so that the first thing it does is print
newlines.

3. after this, we can call usbd_devinfo_alloc(), which polls the device
allowing a context switch, and aprint_normal() the device information.

this avoids problems where autoconf messages are getting mixed up.

Change spaces to tabs and remove some unnecessary parentheses. No
functional change intended.

Expand <dev/usb/usb_port.h> definitions, and lightly unifdef(1).

bzero -> memset

branches: 1.29.6; 1.29.12;
Split device_t and softc for all USB device drivers, and related cosmetic
changes.

Matthias Drochner kindly reviewed this patch, and tested ums, ubt, uaudio
and ral. I tested umass myself.

branches: 1.28.16; 1.28.18; 1.28.20; 1.28.22;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.27.6; 1.27.8; 1.27.12;
Use printf("%zx", arg) instead of printf("%lx", (unsigned long)arg).
Use __arraycount().

Introduce different autoconf interface attributes for USB drivers
matching (and handling) a whole device and those which match an
interface only. This will allow to enforce some rules, eg that
the former don't use interface information for matching or that the
latter don't modify global device state.
The previous way left too much freedom do the drivers which led to
inconsistencies and abuse.
For now, I've not changed locators and submatch rules, this will
happen later.
There should not be any change in behaviour, except in the case of
some drivers which did behave inconsistently:
if_atu, if_axe, uep: matched the configured device in the interface
stage, but did configuration again. I've converted them to match
in the device stage.
ustir, utoppy: matched in the interface stage, but only against
vendor/device information, and used any configuration/interface
without checking. Changed to match in device stage, and added
some simple code to configure and use the first interface.
If you have one of those devices, please test!

branches: 1.25.2; 1.25.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.24.2; 1.24.6;
Spell "separate" correctly. From Zafer Aydogan.

__unused removal on arguments; approved by core.

Split the USB task queue into two parts, one for normal device tasks and
one for tasks of the host controllers. This is needed for drivers like
ural(4) that want to do synchronous USB transfers from the task handler.
Before the split timeouts could not be handled correctly as the task
thread was still blocked. From FreeBSD.

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

fix empty if

PR/34654 -- Peter Szilagyi -- add support for Belkin F5D6050 802.11b dongle

From: Jaime A Fournier: Patch to support SMC 2262WV1

branches: 1.17.6; 1.17.8;
First round at adapting to our net80211 stack. Unfinished work, but at least
won't make the machine panic.

branches: 1.16.2;
XXX: GCC uninitialized

Don't use a private variable for storing the desired ssid, the net80211 layer
provides that.
From OpenBSD.

Use device_unit().

branches: 1.13.4; 1.13.6; 1.13.8; 1.13.10; 1.13.12;
Use usbd_clear_endpoint_stall_async() when clearing endpoint stalls in
an interrupt context. From kern/32172 by darkstar@city-net.com.

branches: 1.12.2; 1.12.8;
Resolve conflicts in importation of 18-May-2005 ath(4) / net80211(9)
from FreeBSD. Introduce compatibility shims (sys/dev/ic/ath_netbsd.[ch],
sys/net80211/ieee80211_netbsd.[ch]). Update drivers (an, atu, atw,
awi, ipw, iwi, rtw, wi) for the new net80211(9) API.

Don't keep the devinfo string on the stack, instead use malloc/free.
This should cure some rare stack overflows.

branches: 1.10.4;
atu on OQO model 01 is confirmed to be working under basestation/no-WEP.
(WEP is not supported yet, it is an different issue)

OQO wifi interface needs quirks
(not confirmed if it works or not, so commented out)

OQO device still unstable on attach/whatever, so comment those entries out

add OQO model 01 devices

Misc changes from code review from someone who doesn't understand USB or
802.11 but wants this driver to work nonetheless...
o Support WEP encryption, hopefully fix PR kern/29324 from Andreas Gustafsson
o Correct ENETRESET reconfig while iface is already running
o Correct bpfilter usage
o Avoid leaking mbufs on failed TX
o Reset ieee80211 state to INIT and stop atu_task() on atu_stop()
o Don't stop interface on USB tx errs, just drop packet
o use IFQ_IS_EMPTY rather than check if_snd for NULL head

nuke trailing whitespace

Clear IFF_RUNNING flag before aborting usb pipes in atu_stop().

Really fixes kern/29326.

o Make sure interface is up before continuing with atu_start(). Should fix PR
kern/29326 as reported by Andreas Gustafsson.
o Use IFQ_DEQUEUE instead of IF_DEQUEUE

branches: 1.2.2;
It seems on some archs size_t is unsigned int and on others size_t is
unsigned long. Cast sizeof() to unsigned long in printf()'s so it can
always work regardless.

branches: 1.1.2;
Atmel AT76C50XX usb 802.11b wifi dongle driver from OpenBSD.

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.

PR/55068: sc.dying: Fix printf formats:
- no %s/%p for kernel log
- 0x% -> %#
- always %j for kernel log

Adopt <net/if_stats.h>.

branches: 1.69.2;
s/transfered/transferred/

Remove SIOC[GS]IFMEDIA because ieee80211_ioctl() does the same thing.

minor adjustments, to avoid warnings on debug builds

localify

remove explicit 'extern struct cfdriver <my>_cd;' and use ioconf.h

No functional change:
- u_int_{8,16,32}_t -> uint_{8,16,32}_t
- KNF.
- Tabify.
- Remove extra space.

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@

Use usb_rem_task_wait in atu(4).

branches: 1.61.2;
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.

constify

It's not required to include net/bpfdesc.h. Remove it.

Constify atu_devs[] so that it lands in .rodata (600 bytes).

GC private 802.11 rateset declarations, use the standard ones.

Build tested only.

branches: 1.56.2;
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

branches: 1.55.8;
+#include "opt_usb.h"

branches: 1.54.2;
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.

Introduce M_CLEARCTX and use it instead of open-coding rcvif

No functional change.

Use M_GETCTX

No functional change.

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

branches: 1.50.2;
src is too big these days to tolerate superfluous apostrophes. It's
"its", people!

branches: 1.49.10; 1.49.14;
remove trailing whitespace

- Add a USBD_MPSAFE flag to usbd_open_pipe. If not set, acquire KERNEL_LOCK
before invoking xfer callbacks on this pipe.
- Add an extra flags parameter to usb_init_task. If USBD_TASKQ_MPSAFE is not
present, acquire KERNEL_LOCK before invoking the task callback.

fix debug variables.
- include opt_usb.h in usb.h so that USB_DEBUG gets set properly in it.
- normalize and sort debugging variables

- need opt_usb.h if depending on USB_DEBUG
- remove trailing whitespace
- add missing KERNEL_RCSID

Consistent/Correct error message from failing usbd_set_config.

Use aprint_error_dev.

add a bunch of devices. from openbsd.

branches: 1.43.6;
Revert previous due to active usbmp branch(es).

Adjust-away inconsistent and trailing whitespace.

branches: 1.41.2; 1.41.6;
There is no doubt whether whether should have a 'h' after the 'w'.

Stop using the compatibility macros USB_ATTACH(), USB_DETACH(),
USB_MATCH(), et cetera. These files produce the same assembly
(according to objdump -d) before and after the change, except for
if_cue.c where two adjacent instructions inexplicably change order.

Only print the debug message about failed remapping when ATU_QUIRK_NO_REMAP
is not set in the atu_quirk flags.

'!' takes precedence over bitwise operation '&', so use parenthesis.

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.

branches: 1.37.2;
Remove duplicate USB_PRODUCT_LINKSYS3_WUSB11V28 entry.
Pointed out by <db@db.net> in #NetBSD-code.

Fight the ever-increasing size of src checkouts by spelling "useful"
without an extra l.

branches: 1.35.2;
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.

Simplify several device-activation hooks.

fix up USB drivers printing of autoconf information

1. expand the USB_ATTACH_SETUP macro (requested by jmcneill)

2. reorder the attach function so that the first thing it does is print
newlines.

3. after this, we can call usbd_devinfo_alloc(), which polls the device
allowing a context switch, and aprint_normal() the device information.

this avoids problems where autoconf messages are getting mixed up.

Change spaces to tabs and remove some unnecessary parentheses. No
functional change intended.

Expand <dev/usb/usb_port.h> definitions, and lightly unifdef(1).

bzero -> memset

branches: 1.29.6; 1.29.12;
Split device_t and softc for all USB device drivers, and related cosmetic
changes.

Matthias Drochner kindly reviewed this patch, and tested ums, ubt, uaudio
and ral. I tested umass myself.

branches: 1.28.16; 1.28.18; 1.28.20; 1.28.22;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.27.6; 1.27.8; 1.27.12;
Use printf("%zx", arg) instead of printf("%lx", (unsigned long)arg).
Use __arraycount().

Introduce different autoconf interface attributes for USB drivers
matching (and handling) a whole device and those which match an
interface only. This will allow to enforce some rules, eg that
the former don't use interface information for matching or that the
latter don't modify global device state.
The previous way left too much freedom do the drivers which led to
inconsistencies and abuse.
For now, I've not changed locators and submatch rules, this will
happen later.
There should not be any change in behaviour, except in the case of
some drivers which did behave inconsistently:
if_atu, if_axe, uep: matched the configured device in the interface
stage, but did configuration again. I've converted them to match
in the device stage.
ustir, utoppy: matched in the interface stage, but only against
vendor/device information, and used any configuration/interface
without checking. Changed to match in device stage, and added
some simple code to configure and use the first interface.
If you have one of those devices, please test!

branches: 1.25.2; 1.25.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.24.2; 1.24.6;
Spell "separate" correctly. From Zafer Aydogan.

__unused removal on arguments; approved by core.

Split the USB task queue into two parts, one for normal device tasks and
one for tasks of the host controllers. This is needed for drivers like
ural(4) that want to do synchronous USB transfers from the task handler.
Before the split timeouts could not be handled correctly as the task
thread was still blocked. From FreeBSD.

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

fix empty if

PR/34654 -- Peter Szilagyi -- add support for Belkin F5D6050 802.11b dongle

From: Jaime A Fournier: Patch to support SMC 2262WV1

branches: 1.17.6; 1.17.8;
First round at adapting to our net80211 stack. Unfinished work, but at least
won't make the machine panic.

branches: 1.16.2;
XXX: GCC uninitialized

Don't use a private variable for storing the desired ssid, the net80211 layer
provides that.
From OpenBSD.

Use device_unit().

branches: 1.13.4; 1.13.6; 1.13.8; 1.13.10; 1.13.12;
Use usbd_clear_endpoint_stall_async() when clearing endpoint stalls in
an interrupt context. From kern/32172 by darkstar@city-net.com.

branches: 1.12.2; 1.12.8;
Resolve conflicts in importation of 18-May-2005 ath(4) / net80211(9)
from FreeBSD. Introduce compatibility shims (sys/dev/ic/ath_netbsd.[ch],
sys/net80211/ieee80211_netbsd.[ch]). Update drivers (an, atu, atw,
awi, ipw, iwi, rtw, wi) for the new net80211(9) API.

Don't keep the devinfo string on the stack, instead use malloc/free.
This should cure some rare stack overflows.

branches: 1.10.4;
atu on OQO model 01 is confirmed to be working under basestation/no-WEP.
(WEP is not supported yet, it is an different issue)

OQO wifi interface needs quirks
(not confirmed if it works or not, so commented out)

OQO device still unstable on attach/whatever, so comment those entries out

add OQO model 01 devices

Misc changes from code review from someone who doesn't understand USB or
802.11 but wants this driver to work nonetheless...
o Support WEP encryption, hopefully fix PR kern/29324 from Andreas Gustafsson
o Correct ENETRESET reconfig while iface is already running
o Correct bpfilter usage
o Avoid leaking mbufs on failed TX
o Reset ieee80211 state to INIT and stop atu_task() on atu_stop()
o Don't stop interface on USB tx errs, just drop packet
o use IFQ_IS_EMPTY rather than check if_snd for NULL head

nuke trailing whitespace

Clear IFF_RUNNING flag before aborting usb pipes in atu_stop().

Really fixes kern/29326.

o Make sure interface is up before continuing with atu_start(). Should fix PR
kern/29326 as reported by Andreas Gustafsson.
o Use IFQ_DEQUEUE instead of IF_DEQUEUE

branches: 1.2.2;
It seems on some archs size_t is unsigned int and on others size_t is
unsigned long. Cast sizeof() to unsigned long in printf()'s so it can
always work regardless.

branches: 1.1.2;
Atmel AT76C50XX usb 802.11b wifi dongle driver from OpenBSD.

PR/55068: sc.dying: Fix printf formats:
- no %s/%p for kernel log
- 0x% -> %#
- always %j for kernel log

Adopt <net/if_stats.h>.

branches: 1.69.2;
s/transfered/transferred/

Remove SIOC[GS]IFMEDIA because ieee80211_ioctl() does the same thing.

minor adjustments, to avoid warnings on debug builds

localify

remove explicit 'extern struct cfdriver <my>_cd;' and use ioconf.h

No functional change:
- u_int_{8,16,32}_t -> uint_{8,16,32}_t
- KNF.
- Tabify.
- Remove extra space.

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@

Use usb_rem_task_wait in atu(4).

branches: 1.61.2;
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.

constify

It's not required to include net/bpfdesc.h. Remove it.

Constify atu_devs[] so that it lands in .rodata (600 bytes).

GC private 802.11 rateset declarations, use the standard ones.

Build tested only.

branches: 1.56.2;
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

branches: 1.55.8;
+#include "opt_usb.h"

branches: 1.54.2;
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.

Introduce M_CLEARCTX and use it instead of open-coding rcvif

No functional change.

Use M_GETCTX

No functional change.

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

branches: 1.50.2;
src is too big these days to tolerate superfluous apostrophes. It's
"its", people!

branches: 1.49.10; 1.49.14;
remove trailing whitespace

- Add a USBD_MPSAFE flag to usbd_open_pipe. If not set, acquire KERNEL_LOCK
before invoking xfer callbacks on this pipe.
- Add an extra flags parameter to usb_init_task. If USBD_TASKQ_MPSAFE is not
present, acquire KERNEL_LOCK before invoking the task callback.

fix debug variables.
- include opt_usb.h in usb.h so that USB_DEBUG gets set properly in it.
- normalize and sort debugging variables

- need opt_usb.h if depending on USB_DEBUG
- remove trailing whitespace
- add missing KERNEL_RCSID

Consistent/Correct error message from failing usbd_set_config.

Use aprint_error_dev.

add a bunch of devices. from openbsd.

branches: 1.43.6;
Revert previous due to active usbmp branch(es).

Adjust-away inconsistent and trailing whitespace.

branches: 1.41.2; 1.41.6;
There is no doubt whether whether should have a 'h' after the 'w'.

Stop using the compatibility macros USB_ATTACH(), USB_DETACH(),
USB_MATCH(), et cetera. These files produce the same assembly
(according to objdump -d) before and after the change, except for
if_cue.c where two adjacent instructions inexplicably change order.

Only print the debug message about failed remapping when ATU_QUIRK_NO_REMAP
is not set in the atu_quirk flags.

'!' takes precedence over bitwise operation '&', so use parenthesis.

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.

branches: 1.37.2;
Remove duplicate USB_PRODUCT_LINKSYS3_WUSB11V28 entry.
Pointed out by <db@db.net> in #NetBSD-code.

Fight the ever-increasing size of src checkouts by spelling "useful"
without an extra l.

branches: 1.35.2;
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.

Simplify several device-activation hooks.

fix up USB drivers printing of autoconf information

1. expand the USB_ATTACH_SETUP macro (requested by jmcneill)

2. reorder the attach function so that the first thing it does is print
newlines.

3. after this, we can call usbd_devinfo_alloc(), which polls the device
allowing a context switch, and aprint_normal() the device information.

this avoids problems where autoconf messages are getting mixed up.

Change spaces to tabs and remove some unnecessary parentheses. No
functional change intended.

Expand <dev/usb/usb_port.h> definitions, and lightly unifdef(1).

bzero -> memset

branches: 1.29.6; 1.29.12;
Split device_t and softc for all USB device drivers, and related cosmetic
changes.

Matthias Drochner kindly reviewed this patch, and tested ums, ubt, uaudio
and ral. I tested umass myself.

branches: 1.28.16; 1.28.18; 1.28.20; 1.28.22;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.27.6; 1.27.8; 1.27.12;
Use printf("%zx", arg) instead of printf("%lx", (unsigned long)arg).
Use __arraycount().

Introduce different autoconf interface attributes for USB drivers
matching (and handling) a whole device and those which match an
interface only. This will allow to enforce some rules, eg that
the former don't use interface information for matching or that the
latter don't modify global device state.
The previous way left too much freedom do the drivers which led to
inconsistencies and abuse.
For now, I've not changed locators and submatch rules, this will
happen later.
There should not be any change in behaviour, except in the case of
some drivers which did behave inconsistently:
if_atu, if_axe, uep: matched the configured device in the interface
stage, but did configuration again. I've converted them to match
in the device stage.
ustir, utoppy: matched in the interface stage, but only against
vendor/device information, and used any configuration/interface
without checking. Changed to match in device stage, and added
some simple code to configure and use the first interface.
If you have one of those devices, please test!

branches: 1.25.2; 1.25.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.24.2; 1.24.6;
Spell "separate" correctly. From Zafer Aydogan.

__unused removal on arguments; approved by core.

Split the USB task queue into two parts, one for normal device tasks and
one for tasks of the host controllers. This is needed for drivers like
ural(4) that want to do synchronous USB transfers from the task handler.
Before the split timeouts could not be handled correctly as the task
thread was still blocked. From FreeBSD.

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

fix empty if

PR/34654 -- Peter Szilagyi -- add support for Belkin F5D6050 802.11b dongle

From: Jaime A Fournier: Patch to support SMC 2262WV1

branches: 1.17.6; 1.17.8;
First round at adapting to our net80211 stack. Unfinished work, but at least
won't make the machine panic.

branches: 1.16.2;
XXX: GCC uninitialized

Don't use a private variable for storing the desired ssid, the net80211 layer
provides that.
From OpenBSD.

Use device_unit().

branches: 1.13.4; 1.13.6; 1.13.8; 1.13.10; 1.13.12;
Use usbd_clear_endpoint_stall_async() when clearing endpoint stalls in
an interrupt context. From kern/32172 by darkstar@city-net.com.

branches: 1.12.2; 1.12.8;
Resolve conflicts in importation of 18-May-2005 ath(4) / net80211(9)
from FreeBSD. Introduce compatibility shims (sys/dev/ic/ath_netbsd.[ch],
sys/net80211/ieee80211_netbsd.[ch]). Update drivers (an, atu, atw,
awi, ipw, iwi, rtw, wi) for the new net80211(9) API.

Don't keep the devinfo string on the stack, instead use malloc/free.
This should cure some rare stack overflows.

branches: 1.10.4;
atu on OQO model 01 is confirmed to be working under basestation/no-WEP.
(WEP is not supported yet, it is an different issue)

OQO wifi interface needs quirks
(not confirmed if it works or not, so commented out)

OQO device still unstable on attach/whatever, so comment those entries out

add OQO model 01 devices

Misc changes from code review from someone who doesn't understand USB or
802.11 but wants this driver to work nonetheless...
o Support WEP encryption, hopefully fix PR kern/29324 from Andreas Gustafsson
o Correct ENETRESET reconfig while iface is already running
o Correct bpfilter usage
o Avoid leaking mbufs on failed TX
o Reset ieee80211 state to INIT and stop atu_task() on atu_stop()
o Don't stop interface on USB tx errs, just drop packet
o use IFQ_IS_EMPTY rather than check if_snd for NULL head

nuke trailing whitespace

Clear IFF_RUNNING flag before aborting usb pipes in atu_stop().

Really fixes kern/29326.

o Make sure interface is up before continuing with atu_start(). Should fix PR
kern/29326 as reported by Andreas Gustafsson.
o Use IFQ_DEQUEUE instead of IF_DEQUEUE

branches: 1.2.2;
It seems on some archs size_t is unsigned int and on others size_t is
unsigned long. Cast sizeof() to unsigned long in printf()'s so it can
always work regardless.

branches: 1.1.2;
Atmel AT76C50XX usb 802.11b wifi dongle driver from OpenBSD.

Adopt <net/if_stats.h>.

s/transfered/transferred/

Remove SIOC[GS]IFMEDIA because ieee80211_ioctl() does the same thing.

minor adjustments, to avoid warnings on debug builds

localify

remove explicit 'extern struct cfdriver <my>_cd;' and use ioconf.h

No functional change:
- u_int_{8,16,32}_t -> uint_{8,16,32}_t
- KNF.
- Tabify.
- Remove extra space.

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@

Use usb_rem_task_wait in atu(4).

branches: 1.61.2;
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.

constify

It's not required to include net/bpfdesc.h. Remove it.

Constify atu_devs[] so that it lands in .rodata (600 bytes).

GC private 802.11 rateset declarations, use the standard ones.

Build tested only.

branches: 1.56.2;
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

branches: 1.55.8;
+#include "opt_usb.h"

branches: 1.54.2;
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.

Introduce M_CLEARCTX and use it instead of open-coding rcvif

No functional change.

Use M_GETCTX

No functional change.

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

branches: 1.50.2;
src is too big these days to tolerate superfluous apostrophes. It's
"its", people!

branches: 1.49.10; 1.49.14;
remove trailing whitespace

- Add a USBD_MPSAFE flag to usbd_open_pipe. If not set, acquire KERNEL_LOCK
before invoking xfer callbacks on this pipe.
- Add an extra flags parameter to usb_init_task. If USBD_TASKQ_MPSAFE is not
present, acquire KERNEL_LOCK before invoking the task callback.

fix debug variables.
- include opt_usb.h in usb.h so that USB_DEBUG gets set properly in it.
- normalize and sort debugging variables

- need opt_usb.h if depending on USB_DEBUG
- remove trailing whitespace
- add missing KERNEL_RCSID

Consistent/Correct error message from failing usbd_set_config.

Use aprint_error_dev.

add a bunch of devices. from openbsd.

branches: 1.43.6;
Revert previous due to active usbmp branch(es).

Adjust-away inconsistent and trailing whitespace.

branches: 1.41.2; 1.41.6;
There is no doubt whether whether should have a 'h' after the 'w'.

Stop using the compatibility macros USB_ATTACH(), USB_DETACH(),
USB_MATCH(), et cetera. These files produce the same assembly
(according to objdump -d) before and after the change, except for
if_cue.c where two adjacent instructions inexplicably change order.

Only print the debug message about failed remapping when ATU_QUIRK_NO_REMAP
is not set in the atu_quirk flags.

'!' takes precedence over bitwise operation '&', so use parenthesis.