Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r260444:

Rename definition of IEEE80211_FC1_WEP to IEEE80211_FC1_PROTECTED.

The origin of WEP comes from IEEE Std 802.11-1997 where it defines
whether the frame body of MAC frame has been encrypted using WEP
algorithm or not.
IEEE Std. 802.11-2007 changes WEP to Protected Frame, indicates
whether the frame is protected by a cryptographic encapsulation
algorithm.

Reviewed by: adrian, rpaulo

MFC r260055:

In sys/dev/usb/wlan/if_urtw.c, #if 0 a static const variable, which has
been unused since r198194.

MFC r238274, r246752, r256720, r256721, r256722, r256955, r257409
r257429, r257435, r257712, r257732, r257743, r257748, r257955
r257957, r257958, r258082, r258641, r258643, r258732, r258733,
r258840, r258919, r258921, r259029, r259030, r259031, r259032 and r259046:

- Add support for the MediaTek/Ralink RT5370/RT5372 chipset.
- Various minor USB WLAN fixes and improvements.

PR: usb/182936

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Revert r252725 as it breaks WPA.

We need to fix wpa_supplicant because it checks whether the card has
ic_cryptocaps set. Since net80211 can do software encryption this check in
wpa_supplicant is wrong.

Set ic_cryptocaps to make sure wpa_supplicant works with WEP.

- Streamline detach logic in wlan drivers, so that
freed memory cannot be used during detach.
- Remove all panic() calls from the urtw driver because
panic() is not appropriate here.
- Remove redundant checks for device detached in
device detach callbacks.
- Use DEVMETHOD_END to mark end of device methods.

MFC after: 2 weeks

Fix more regression issue after r244503.

usbd_transfer_setup() does not set a default length for USB transfers.
Only the number of frames is automatically setup.

MFC after: 1 week

Make sure all USB drivers allocate buffer memory
through the USB API and/or busdma.

The following assumptions have been made:
umass - buffers passed from CAM/SCSI layer are OK
network - mbufs are OK.

Some other nits while at it.

MFC after: 1 week
Suggested by: imp

Mechanically substitute flags from historic mbuf allocator with
malloc(9) flags in sys/dev.

Add missing CTLFLAG_TUN flag to tunable sysctls in USB stack.
Rearrange the tunables and belonging sysctl declarations, so
that they are next to eachother.

Submitted by: n_hibma @
MFC after: 1 week

Fix compiler warnings, mostly signed issues,
when USB modules are compiled with WARNS=9.

MFC after: 1 weeks

Fix some net80211 enum nits:
- ic_vap_create() uses an ieee80211_opmode argument
- ieee80211_rate2media() takes an ieee80211_phymode argument
- ieee80211_plcp2rate() takes an ieee80211_phytype argument
- cast to enum ieee80211_protmode and ieee80211_roamingmode to silence
compiler warnings

Submitted by: arundel@

Fix checks for error return from urtw_alloc_rx_data_list() and
urtw_alloc_tx_data_list().

Style change.
- Make it easier to port the USB code to other platforms by only using
one set of memory functions for clearing and copying memory. None of
the memory copies are overlapping. This means using bcopy() is not
required.
- Fix a compile warning when USB_HAVE_BUSDMA=0
- Add missing semicolon in avr32dci.
- Update some comments.

MFC after: 1 week

Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.

The SYSCTL_NODE macro defines a list that stores all child-elements of
that node. If there's no SYSCTL_DECL macro anywhere else, there's no
reason why it shouldn't be static.

- Move all USB device ID arrays into so-called sections,
sorted according to the mode which they support:
host, device or dual mode
- Add generic tool to extract these data:
tools/bus_autoconf

Discussed with: imp
Suggested by: Robert Millan <rmh@debian.org>
PR: misc/157903
MFC after: 14 days

Use USB_VENDOR_OVISLINK define rather than the vendor ID.

PR: usb/158142
Submitted by: Robert Millan <rmh debian.org>
MFC after: 1 week

Fix build breakage from r212127

We need to grab a node reference count to vap->iv_bss before using it as it is
possible for the node to be replaced and freed at any time by
ieee80211_sta_join1().

Add missing MODULE_VERSION() definitions, this resolves problems around
duplicate module loads.

PR: usb/125736
Submitted by: danger, mm
Reviewed by: hselasky

Add new tunable 'net.link.ifqmaxlen' to set default send interface
queue length. The default value for this parameter is 50, which is
quite low for many of today's uses and the only way to modify this
parameter right now is to edit if_var.h file. Also add read-only
sysctl with the same name, so that it's possible to retrieve the
current value.

MFC after: 1 month

Remove debugging code that snuck in.

net80211 rate control framework (net80211 ratectl).

This framework allows drivers to abstract the rate control algorithm and
just feed the framework with the usable parameters. The rate control
framework will now deal with passing the parameters to the selected
algorithm. Right now we have AMRR (the default) and RSSADAPT but there's
no way to select one with ifconfig, yet.
The objective is to have more rate control algorithms in the net80211
stack so all drivers[0] can use it. Ideally, we'll have the well-known
sample rate control algorithm in the net80211 at some point so all
drivers can use it (not just ath).

[0] all drivers that do rate control in software, that is.

Reviewed by: bschmidt, thompsa, weyongo
MFC after: 1 months

adds sysctl knobs to show rate statistics that it could be useful to
debug slow TX speed.

fixes a typo that value should be 0 not 10.

overhauls urtw(4) for supporting RTL8187B devices properly that there
was major changes to initialize RF chipset and set H/W registers and
removed a lot of magic numbers on code. Details are as follows:

- uses the endpoint 0x89 to get TX status information which used to
get TX complete or retry numbers or get a beacon interrupt. It's
only valuable for RTL8187B.
- removes urtw_write[8|16|32]_i functions that it's useless now.
- uses ic->ic_updateslot to set SLOT, SIFS, DIES, EIFS, CW_VAL
registers that doesn't set these whenever the channel is changed.
- code for initializing RF chipset for RTL8187B changed a lot that
there was many problems on TX transfers so it doesn't work properly
even if just for a ping/pong. Now it becomes more stable than
before that TX throughputs using netperf(1) were about 15 ~ 17Mbps/s
though sometimes it encounters packet losses.
- removes a lot of magic numbers that in the previous all of
representing RX and TX descriptors were consisted of magic numbers
and structures. It'd be more readable rather than before.
- calculates TX duration more accurately for urtw(4) devices.
- style(9)

fixes a TX hang that could be possible to happen when the trasfers are
in the high speed that some drivers don't call if_start callback after
marking ~IFF_DRV_OACTIVE.

MFC after: 3 days

updates device entries supported with the product name not magic numbers
and sorts entries. WUSB54GCV2 is added.

Obtained from: OpenBSD

Revert previous commit and add myself to the list of people who should
know better than to commit with a cat in the area.

Add necessary include.

Add ids of Sitecom USB wlan gadget.

Approved by: re (kib)

Use if_maddr_rlock()/if_maddr_runlock() rather than IF_ADDR_LOCK()/
IF_ADDR_UNLOCK() across network device drivers when accessing the
per-interface multicast address list, if_multiaddrs. This will
allow us to change the locking strategy without affecting our driver
programming interface or binary interface.

For two wireless drivers, remove unnecessary locking, since they
don't actually access the multicast address list.

Approved by: re (kib)
MFC after: 6 weeks

- Make struct usb_xfer opaque so that drivers can not access the internals
- Reduce the number of headers needed for a usb driver, the common case is just usb.h and usbdi.h

s/usb2_/usb_|usbd_/ on all function names for the USB stack.

Make variables static where appropriate.

Found by: cscout

s/usb2_/usb_/ on all typedefs for the USB stack.

s/usb2_/usb_/ on all C structs for the USB stack.

ports urtw(4) for USB2. Additionally it supports a 8187B chipset weakly
that it needs more stabilization.