8 years agobcma: signedness bug in bcma_get_next_core()
Dan Carpenter [Tue, 23 Aug 2011 19:15:35 +0000]
bcma: signedness bug in bcma_get_next_core()

The u32 would never be less than zero so the error handling would
break.  I changed it to s32 to match how bcma_erom_get_mst_port() is
declared.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: fix MGMT packets when using TKIP
Bill Jordan [Fri, 19 Aug 2011 15:10:22 +0000]
ath9k: fix MGMT packets when using TKIP

Prevent 8 bytes from being truncated from MGMT packets
when using TKIP.

Signed-off-by: Bill Jordan <bjordan@rajant.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: warn when forcing PIO mode
Rafał Miłecki [Tue, 16 Aug 2011 19:44:21 +0000]
b43: warn when forcing PIO mode

We have resolved all the known issues with DMA mode, however some users
(or distros) are still forcing PIO mode by config files. Without
debugging enabled it's not noticable at all. Add the warning for them.

Cc: Gregory Bellier <gregory.bellier@gmail.com>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k_hw: fix EIFS value to microseconds
Alex Hacker [Tue, 16 Aug 2011 10:41:40 +0000]
ath9k_hw: fix EIFS value to microseconds

The EIFS value read from AR_D_GBL_IFS_EIFS register in core clocks and then
written back as microsecond value.

Signed-off-by: Alex Hacker <hacker@epn.ru>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: LCN-PHY: init 0x2064 radio
Rafał Miłecki [Mon, 15 Aug 2011 16:50:56 +0000]
b43: LCN-PHY: init 0x2064 radio

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: LCN-PHY: basic PHY init
Rafał Miłecki [Mon, 15 Aug 2011 16:50:55 +0000]
b43: LCN-PHY: basic PHY init

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agocarl9170: export HW random number generator
Christian Lamparter [Mon, 15 Aug 2011 18:09:54 +0000]
carl9170: export HW random number generator

All AR9170 hardware have a 16-Bit random number generator.
The documentation claims the values are suitable for
"security keys".

The "throughput" is around 320Kibit/s. It's slow, but it
does work without introducing any special offload
firmware commands.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agocarl9170: improve site survey
Christian Lamparter [Mon, 15 Aug 2011 17:50:48 +0000]
carl9170: improve site survey

The firmware keeps track of channel usage. This data can
be used by the automatic channel selection to find the
*best* channel.

Survey data from wlan22
frequency:                      2412 MHz [in use]
noise:                          -86 dBm
channel active time:            3339608 ms
channel busy time:              270982 ms
channel transmit time:          121515 ms
Survey data from wlan22
frequency:                      2417 MHz
noise:                          -86 dBm
channel active time:            70 ms
channel busy time:              2 ms
channel transmit time:          1 ms

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agocarl9170: import updated firmware headers
Christian Lamparter [Mon, 15 Aug 2011 17:39:51 +0000]
carl9170: import updated firmware headers

Import new headers from our firmware branch:
git://git.kernel.org/pub/scm/linux/kernel/git/chr/carl9170fw.git

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agocarl9170: fix timekeeping for HW_COUNTER firmwares
Christian Lamparter [Mon, 15 Aug 2011 16:45:54 +0000]
carl9170: fix timekeeping for HW_COUNTER firmwares

AR9170_PWR_REG_PLL_ADDAC is used to set the main clock
divisor which affects the AHB/CPU speed. Because this
would interfere with the firmware internal timekeeping,
the function has to be moved into the firmware.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agolibertas: handle mesh networks in lbs_iface_active()
Dan Carpenter [Mon, 15 Aug 2011 11:25:35 +0000]
libertas: handle mesh networks in lbs_iface_active()

There was an extra semicolon so the if condition wasn't used.  We
checked "priv->dev" twice instead of "priv->mesh_dev".

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: LCN-PHY: add init tables
Rafał Miłecki [Sun, 14 Aug 2011 23:23:09 +0000]
b43: LCN-PHY: add init tables

They were taken from MMIO dump with few RegExps and vim.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: LCN-PHY: switch analog
Rafał Miłecki [Sun, 14 Aug 2011 21:27:30 +0000]
b43: LCN-PHY: switch analog

Analog is switched on right after reading PHY version:
 read16 0xfaafc3e0 -> 0xa801
 phy_read(0x043b) -> 0x0000
phy_write(0x043b) <- 0x0000
Switched off after after killing radio:
>>> Switch Radio(OFF) end
 phy_read(0x043c) -> 0x0000
phy_write(0x043c) <- 0x0007
 phy_read(0x043b) -> 0x0000
phy_write(0x043b) <- 0x0007

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: LCN-PHY: implement disabling radio
Rafał Miłecki [Sun, 14 Aug 2011 21:27:29 +0000]
b43: LCN-PHY: implement disabling radio

wl reads radio version, then disables it. That's how we found it in MMIO
dump:
 radio_read(0x0000) -> 0x0031 <-- RADIO READ WITHOUT 0x200 SET!
 radio_read(0x0001) -> 0x0064 <-- RADIO READ WITHOUT 0x200 SET!
 radio_read(0x0002) -> 0x0020 <-- RADIO READ WITHOUT 0x200 SET!
 read32 0xfaafc120 -> 0x04000400
 phy_read(0x044d) -> 0x0000
phy_write(0x044d) <- 0x0000
 phy_read(0x044c) -> 0x1fff
phy_write(0x044c) <- 0x1fff
 phy_read(0x04b7) -> 0x0000
phy_write(0x04b7) <- 0x0000
 phy_read(0x04b1) -> 0x0000
phy_write(0x04b1) <- 0x0000
 phy_read(0x04b0) -> 0x7dff
phy_write(0x04b0) <- 0x7dff
 phy_read(0x04fa) -> 0x0000
phy_write(0x04fa) <- 0x0000
 phy_read(0x04f9) -> 0x007f
phy_write(0x04f9) <- 0x007f

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: LCN-PHY: add very basic PHY ops
Rafał Miłecki [Sun, 14 Aug 2011 21:27:28 +0000]
b43: LCN-PHY: add very basic PHY ops

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: fix DMA on some bugged hardware
Rafał Miłecki [Sun, 14 Aug 2011 18:16:37 +0000]
b43: fix DMA on some bugged hardware

Some hardware with 64-bit DMA uses lower address word for setting
routing (translation) bit. Add workaround for such boards.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agossb: fix DMA translation for some specific boards
Rafał Miłecki [Sun, 14 Aug 2011 17:39:40 +0000]
ssb: fix DMA translation for some specific boards

Signed-off-by: Michael Buesch <m@bues.ch>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: remove a bogus WARN_ON
Felix Fietkau [Sat, 13 Aug 2011 16:13:49 +0000]
ath9k: remove a bogus WARN_ON

On embedded hardware it's normal to not have a PCI device for the PCI
bridge that the wifi card is attached to. pdev->bus->self will be
NULL in that case. In that case, simply return without emitting an
useless kernel stack trace.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: Dump modal noisefloor calibration history
Rajkumar Manoharan [Sat, 13 Aug 2011 04:58:18 +0000]
ath9k: Dump modal noisefloor calibration history

Debugfs file location:
<debugfs_mnt>/ieee80211/phy#/ath9k/dump_nfcal

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: Fix invalid noisefloor reading due to channel update
Rajkumar Manoharan [Sat, 13 Aug 2011 04:58:17 +0000]
ath9k: Fix invalid noisefloor reading due to channel update

While switching b/w HT20/40, the current channel's nf values
are updated into history buffer. Since the current channel's
channel type, channel flag got updated before reading
nf value from hw. This channel type mismatch is causing invalid
readings when hw is on ht20 but getnf tries to read on extn chains.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: Fix noisefloor history update for extn chains
Rajkumar Manoharan [Sat, 13 Aug 2011 04:58:16 +0000]
ath9k: Fix noisefloor history update for extn chains

Before doing hw reset the current channel's noisefloor readings
are updated into history buffer. The extension chain's readings
are considered only if the current channel was configured in HT40.
While moving from HT40 to HT20, the extn chain's readings are
skipped though the current channel is in ht40. This patch updates
extn chain reading based on channel flag.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: Move ath9k_init_crypto to common
Rajkumar Manoharan [Sat, 13 Aug 2011 04:58:15 +0000]
ath9k: Move ath9k_init_crypto to common

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: Remove SC_OP_ENABLE_APM
Rajkumar Manoharan [Sat, 13 Aug 2011 04:58:14 +0000]
ath9k: Remove SC_OP_ENABLE_APM

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k_hw: Remove unnecessary chainmask configuration
Rajkumar Manoharan [Sat, 13 Aug 2011 04:58:13 +0000]
ath9k_hw: Remove unnecessary chainmask configuration

The chainmasks were already configured at process_ini
before doing init calibration.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: qinfo never be NULL in setuptxqueue
Rajkumar Manoharan [Sat, 13 Aug 2011 04:58:12 +0000]
ath9k: qinfo never be NULL in setuptxqueue

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: Remove unused argument tsf from ath9k_hw_rxprocdesc
Rajkumar Manoharan [Sat, 13 Aug 2011 04:58:11 +0000]
ath9k: Remove unused argument tsf from ath9k_hw_rxprocdesc

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: Re-enable RXOEL interrupt after processing rx buffers
Rajkumar Manoharan [Sat, 13 Aug 2011 04:58:10 +0000]
ath9k: Re-enable RXOEL interrupt after processing rx buffers

Once RXEOL was disabled, it never be enabled again. This patch
re-enables rxeol at the end of rx tasklet.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: Fix rx overrun interrupt storm
Rajkumar Manoharan [Sat, 13 Aug 2011 04:58:09 +0000]
ath9k: Fix rx overrun interrupt storm

Whenever RXEOL is received, both RXORN and RXEOL got cleared
to avoid rx overrun interrupt storm. This was handled only for
edma chips. The same scenario was also observered with AR9280,
doing frequent channel type switch b/w HT20/40 with bidi traffic
that is causing failure to stop rx dma. This patch clears
the RXEOL & RXORN interrupts for all chips.

ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x42000020
DMADBG_7=0x000062c0
ath: Could not stop RX, we could be confusing the DMA engine when we
start RX up
------------[ cut here ]------------
WARNING: at drivers/net/wireless/ath/ath9k/recv.c:532
ath_stoprecv+0x110/0x120 [ath9k]()
Call Trace:
 [<ffffffff8104a55a>] warn_slowpath_common+0x7a/0xb0
 [<ffffffff8104a5a5>] warn_slowpath_null+0x15/0x20
 [<ffffffffa0560380>] ath_stoprecv+0x110/0x120 [ath9k]
 [<ffffffffa055e6fa>] ath_reset+0x6a/0x200 [ath9k]

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k_hw: Fix exceed transmission burst-time of 5GHz
Rajkumar Manoharan [Sat, 13 Aug 2011 04:58:08 +0000]
ath9k_hw: Fix exceed transmission burst-time of 5GHz

The WAR which adds extra delimiters when using RTS/CTS
with aggregation and non-enterprise AR9003 chips.
This extra padding is done after doing all the 4ms limit
checks and hence the total aggregate sizes are exceeding
the allowed duration. This patch limits the aggregate
sizes appropriately after including these extra delimiters.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years ago{nl,cfg,mac}80211: let userspace make meshif mesh gate
Javier Cardona [Tue, 9 Aug 2011 23:45:11 +0000]
{nl,cfg,mac}80211: let userspace make meshif mesh gate

Allow userspace to set NL80211_MESHCONF_GATE_ANNOUNCEMENTS attribute,
which will advertise this mesh node as being a mesh gate.
NL80211_HWMP_ROOTMODE must be set or this will do nothing.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years ago{nl,cfg,mac}80211: let userspace set RANN interval
Javier Cardona [Tue, 9 Aug 2011 23:45:10 +0000]
{nl,cfg,mac}80211: let userspace set RANN interval

Allow userspace to set Root Announcement Interval for our mesh
interface. Also, RANN interval is now in proper units of TUs.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years ago{nl,mac}80211: add missing root mode meshconf entries
Javier Cardona [Tue, 9 Aug 2011 23:45:09 +0000]
{nl,mac}80211: add missing root mode meshconf entries

This fix allows userspace to mark a meshif as a root node.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomac80211: mesh gate implementation
Javier Cardona [Tue, 9 Aug 2011 23:45:08 +0000]
mac80211: mesh gate implementation

In this implementation, a mesh gate is a root node with a certain bit
set in its RANN flags. The mpath to this root node is marked as a path
to a gate, and added to our list of known gates for this if_mesh. Once a
path discovery process fails, we forward the unresolved frames to a
known gate. Thanks to Luis Rodriguez for refactoring and bug fix help.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomac80211: fix mesh path flushing
Javier Cardona [Tue, 9 Aug 2011 23:45:07 +0000]
mac80211: fix mesh path flushing

Previously, mpaths were never flushed since the mpath is not active once
we call this function.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomac80211: mesh locking fixes
Javier Cardona [Tue, 9 Aug 2011 23:45:06 +0000]
mac80211: mesh locking fixes

mesh_queue_preq is invoked invoked from both user (work queue) and
softirq (timer) context, so the _bh version of spinlock needs to be
used. Also, the mpath->state_lock should be softirq safe as well.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomac80211: fix mpath timer NULL function
Javier Cardona [Tue, 9 Aug 2011 23:45:05 +0000]
mac80211: fix mpath timer NULL function

If we have an mpath whose timer has not been initialized, don't try to
delete it.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomac80211: improve mpath debugging
Javier Cardona [Tue, 9 Aug 2011 23:45:04 +0000]
mac80211: improve mpath debugging

make hwmp_dbg print the relevant sdata->name by default and improve
formatting. Also add mpath_dbg macro for debugging of mesh path
operations.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: HT-PHY: allow writing longer tables with a single call
Rafał Miłecki [Tue, 23 Aug 2011 17:09:30 +0000]
b43: HT-PHY: allow writing longer tables with a single call

Sometimes we need to write table which is 2-10 elements long. It's
easier to create such a function instead of defining array every time.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: HT-PHY: init: add missing small-tables writes
Rafał Miłecki [Sat, 13 Aug 2011 15:54:04 +0000]
b43: HT-PHY: init: add missing small-tables writes

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agortlwifi: add module parameter to set global debug level
Stefan Assmann [Sat, 13 Aug 2011 10:12:36 +0000]
rtlwifi: add module parameter to set global debug level

No need to recompile the module anymore to set the debug level.

Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: HT-PHY: init: add some AFE (Analog Frontend) operation
Rafał Miłecki [Fri, 12 Aug 2011 23:41:12 +0000]
b43: HT-PHY: init: add some AFE (Analog Frontend) operation

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: HT-PHY: init: add missing PHY mask/set ops
Rafał Miłecki [Fri, 12 Aug 2011 23:41:11 +0000]
b43: HT-PHY: init: add missing PHY mask/set ops

MMIO hacks were used to trick ndis&wl. For example following:
 phy_read(0x0280) -> 0xffff
phy_write(0x0280) <- 0xff3e
***
 phy_read(0x0280) -> 0x0000
phy_write(0x0280) <- 0x003e
was translated to mask 0xff00 and set 0x3e.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: HT-PHY: init: init BPHY and upload 0x1a table
Rafał Miłecki [Fri, 12 Aug 2011 13:27:34 +0000]
b43: HT-PHY: init: init BPHY and upload 0x1a table

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: HT-PHY: init: copy tables and reset CCA
Rafał Miłecki [Fri, 12 Aug 2011 11:13:46 +0000]
b43: HT-PHY: init: copy tables and reset CCA

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: HT-PHY: init: implement few simple PHY writes
Rafał Miłecki [Fri, 12 Aug 2011 11:13:45 +0000]
b43: HT-PHY: init: implement few simple PHY writes

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: HT-PHY: init: zero EXTG registers
Rafał Miłecki [Fri, 12 Aug 2011 11:13:44 +0000]
b43: HT-PHY: init: zero EXTG registers

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomwl8k: Traffic to clients gets affected when one client leaves a cyrpto bss
Nishant Sarmukadam [Fri, 12 Aug 2011 06:50:21 +0000]
mwl8k: Traffic to clients gets affected when one client leaves a cyrpto bss

When a client disassociates from a crypto enabled bss, data traffic to
other clients connected to the bss is stalled. This was due to a boolean
variable used to keep track if HW crypto is enabled i.e. if set key has
been called to add a key.  This flag was being reset every time delete
key was called e.g when a station leaves the bss. Once the flag is
reset, rx status flags were not being set for connected clients which
disrupts traffic to these clients. Fix this issue by not resetting the
flag since we do not need to reset this flag during the life time of the
bss.

Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomac80211: update mesh path selection frame format
Thomas Pedersen [Fri, 12 Aug 2011 02:35:15 +0000]
mac80211: update mesh path selection frame format

Make mesh path selection frames Mesh Action category, remove outdated
Mesh Path Selection category and defines, use updated reason codes, add
mesh_action_is_path_sel for readability, and update/correct path
selection IEs.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoieee80211: add mesh action codes
Thomas Pedersen [Fri, 12 Aug 2011 02:35:14 +0000]
ieee80211: add mesh action codes

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomac80211: update mesh peering frame format
Thomas Pedersen [Sat, 13 Aug 2011 03:01:00 +0000]
mac80211: update mesh peering frame format

This patch updates the mesh peering frames to the format specified in
the recently ratified 802.11s standard. Several changes took place to
make this happen:

- Change RX path to handle new self-protected frames
- Add new Peering management IE
- Remove old Peer Link IE
- Remove old plink_action field in ieee80211_mgmt header

These changes by themselves would either break peering, or work by
coincidence, so squash them all into this patch.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomac80211: update mesh peering frame codes
Thomas Pedersen [Fri, 12 Aug 2011 02:35:12 +0000]
mac80211: update mesh peering frame codes

Have the mesh peering frames use the self-protected action and reason codes
specified in 802.11s and defined in ieee80211.h. Remove the local enums.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoieee80211: introduce Self Protected Action codes
Thomas Pedersen [Fri, 12 Aug 2011 02:35:11 +0000]
ieee80211: introduce Self Protected Action codes

802.11s introduces a new action frame category, add action codes as well
as an entry in ieee80211_mgmt.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomac80211: fix mesh beacon format
Thomas Pedersen [Fri, 12 Aug 2011 02:35:10 +0000]
mac80211: fix mesh beacon format

Correct ordering of IEs in the mesh beacon while removing unneeded IEs
from mesh peering frames. Set privacy bit in capability info if security
is enabled. Add utility functions to aid in construction
of IEs and reduce code duplication.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: make forcing clock common (HT-PHY also uses that)
Rafał Miłecki [Thu, 11 Aug 2011 22:03:26 +0000]
b43: make forcing clock common (HT-PHY also uses that)

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: include HT-PHY in some common code
Rafał Miłecki [Thu, 11 Aug 2011 22:03:25 +0000]
b43: include HT-PHY in some common code

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agobcma: implement BCM4331 workaround for external PA lines
Rafał Miłecki [Thu, 11 Aug 2011 21:46:44 +0000]
bcma: implement BCM4331 workaround for external PA lines

We need to disable ext. PA lines for reading SPROM. It's disabled by
default, but this patch allows using bcma after loading wl, which leaves
workaround enabled.

Cc: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: support new RX header, noticed to be used in 598.314+ fw
Rafał Miłecki [Thu, 11 Aug 2011 15:16:27 +0000]
b43: support new RX header, noticed to be used in 598.314+ fw

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: support new TX header, noticed to be used by 598.314+ fw
Rafał Miłecki [Thu, 11 Aug 2011 13:07:16 +0000]
b43: support new TX header, noticed to be used by 598.314+ fw

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: use enum for firmware header format
Rafał Miłecki [Thu, 11 Aug 2011 13:07:15 +0000]
b43: use enum for firmware header format

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: rename TX header formats
Rafał Miłecki [Thu, 11 Aug 2011 13:07:14 +0000]
b43: rename TX header formats

Replace "old" and "new" with number of the first firmware known to use
the given format.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomac80211: Tear down BA session on BAR tx failure
Helmut Schaa [Thu, 11 Aug 2011 14:17:42 +0000]
mac80211: Tear down BA session on BAR tx failure

As described at [1] some STAs (i.e. Intel 5100 Windows) can end up
correctly BlockAcking incoming frames without delivering them to user
space if a AMPDU subframe got lost and we don't flush the receipients
reorder buffer with a BlockAckReq. This in turn results in stuck
connections.

According to 802.11n-2009 it is not necessary to send a BAR to flush
the recepients RX reorder buffer but we still do that to be polite.

However, assume the following frame exchange:

AP -> STA, AMPDU (failed)
AP -> STA, BAR (failed)

The client in question then ends up in the same situation and won't
deliver frames to userspace anymore since we weren't able to flush
its reorder buffer.

This is not a hypothetical situation but I was able to observe this
exact behavior during a stress test between a rt2800pci AP and a Intel
5100 Windows client.

In order to work around this issue just tear down the BA session as
soon as a BAR failed to be TX'ed.

[1] http://comments.gmane.org/gmane.linux.kernel.wireless.general/66867

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agowireless: Introduce defines for BAR TID_INFO & MULTI_TID fields
Helmut Schaa [Thu, 11 Aug 2011 14:17:41 +0000]
wireless: Introduce defines for BAR TID_INFO & MULTI_TID fields

While at it also fix the indention of the other IEEE80211_BAR_CTRL_ defines.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agob43: reload phy and bss settings after core restarts
Felix Fietkau [Wed, 10 Aug 2011 19:50:30 +0000]
b43: reload phy and bss settings after core restarts

b43_op_config and b43_op_bss_info_changed apply many settings by directly
writing to hardware registers. These settings are lost as soon as the core
is restarted and the initvals are reloaded. This was discovered because
restarting hostapd led to the beacon interval getting set to ~33s (see
https://dev.openwrt.org/ticket/8033 for more information).

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: do btcoex ASPM disabling at initialization time
Stanislaw Gruszka [Fri, 5 Aug 2011 11:10:34 +0000]
ath9k: do btcoex ASPM disabling at initialization time

Disable ASPM in pci ->probe on upstream (device) and downstream
(PCIe port) component. According to e1000e driver authors this is
required. I did not find that requirement in PCIe spec, but it seems
to be logical for me.

This need to be fixed for CONFIG_PCIEASPM, that will be done later ...

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: merge common ->config_pci_powersave() checks
Stanislaw Gruszka [Fri, 5 Aug 2011 11:10:33 +0000]
ath9k: merge common ->config_pci_powersave() checks

Move common checks into wrapper function. Since ASPM can be only enabled
on PCIe devices ->is_pciexpress check is unneeded.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: remove ->config_pci_powersave() redundant argument
Stanislaw Gruszka [Fri, 5 Aug 2011 11:10:32 +0000]
ath9k: remove ->config_pci_powersave() redundant argument

We always call ->config_pci_powersave() with both restore and power_off
arguments equal to 0 or both equal to 1, so merge them into one
argument.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agostaging: remove ath6kl
Kalle Valo [Fri, 12 Aug 2011 18:45:44 +0000]
staging: remove ath6kl

ath6kl is now in drivers/net/wireless/ath so the staging driver
is not supported anymore and should be removed.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Greg KH <gregkh@suse.de>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomwifiex: use cfg80211 dynamic scan table and cfg80211_get_bss API
Amitkumar Karwar [Thu, 11 Aug 2011 01:53:57 +0000]
mwifiex: use cfg80211 dynamic scan table and cfg80211_get_bss API

Instead of maintaining static scan table in driver, scan list is sent
to cfg80211 stack (after parsing each scan command response).
In assoc handler (for infra and ibss network) requested BSS information
is retrieved using cfg80211_get_bss() API.

With the changes above some redundant code are removed.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: avoid sending a-mpdu packets to sleeping stations
Felix Fietkau [Wed, 10 Aug 2011 21:23:35 +0000]
ath9k: avoid sending a-mpdu packets to sleeping stations

If the driver gets a tx status report for an A-MPDU sent to a station that
just went to sleep, that leaves a race condition where this tx status can
trigger another A-MPDU transmission.
To fix this, check if the station is sleeping before queueing the tid.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agonl80211/cfg80211: Add extra IE configuration to AP mode setup
Jouni Malinen [Wed, 10 Aug 2011 20:55:56 +0000]
nl80211/cfg80211: Add extra IE configuration to AP mode setup

The NL80211_CMD_NEW_BEACON command is, in practice, requesting AP mode
operations to be started. Add new attributes to provide extra IEs
(e.g., WPS IE, P2P IE) for drivers that build Beacon, Probe Response,
and (Re)Association Response frames internally (likely in firmware).

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agonl80211/cfg80211: Add crypto settings into NEW_BEACON
Jouni Malinen [Wed, 10 Aug 2011 20:54:35 +0000]
nl80211/cfg80211: Add crypto settings into NEW_BEACON

This removes need from drivers to parse the beacon tail/head data
to figure out what crypto settings are to be used in AP mode in case
the Beacon and Probe Response frames are fully constructed in the
driver/firmware.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agonl80211/cfg80211: Allow SSID to be specified in new beacon command
Jouni Malinen [Wed, 10 Aug 2011 20:53:31 +0000]
nl80211/cfg80211: Allow SSID to be specified in new beacon command

This makes it easier for drivers that generate Beacon and Probe Response
frames internally (in firmware most likely) in AP mode.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agocfg80211/mac80211: move information element parsing logic to cfg80211
Yogesh Ashok Powar [Wed, 10 Aug 2011 01:02:26 +0000]
cfg80211/mac80211: move information element parsing logic to cfg80211

Moving the parsing logic for retrieving the information elements
stored in management frames, e.g. beacons or probe responses,
and making it available to other cfg80211 drivers.

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: remove eeprom txgain override for minor version < 19
Marek Lindner [Wed, 3 Aug 2011 14:35:16 +0000]
ath9k: remove eeprom txgain override for minor version < 19

ath9k_hw_4k_get_eeprom() overrides the eeprom value for txgain if the
minor version is not 19 or above with a value of 0.
ar9002_hw_init_mode_gain_regs() relies on this information to
determine whether this is a high power wifi card or not. The override
caused the driver to always use the 'normal' power tables even for
high power devices if their minor version was not high enough. Thus
leading to reduced power output.

This isn't needed for the AR9285; the check originated with the
AR9280 setup code which requires the EEPROM version check.

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Adrian Chadd <adrian@freebsd.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agonl80211/cfg80211: Make addition of new sinfo fields safer
Jouni Malinen [Thu, 11 Aug 2011 08:46:22 +0000]
nl80211/cfg80211: Make addition of new sinfo fields safer

Add a comment pointing out the use of enum station_info_flags for
all new struct station_info fields. In addition, memset the sinfo
buffer to zero before use on all paths in the current tree to avoid
leaving uninitialized pointers in the data.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agocfg80211: fix a crash in nl80211_send_station
Felix Fietkau [Thu, 11 Aug 2011 01:00:33 +0000]
cfg80211: fix a crash in nl80211_send_station

mac80211 leaves sinfo->assoc_req_ies uninitialized, causing a random
pointer memory access in nl80211_send_station.
Instead of checking if the pointer is null, use sinfo->filled, like
the rest of the fields.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: remove obselete comments
Mohammed Shafi Shajakhan [Wed, 10 Aug 2011 10:54:57 +0000]
ath9k: remove obselete comments

the comments are obselete as the virtual wiphy support was removed from
the driver

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: optimize rate control statistics
Mohammed Shafi Shajakhan [Tue, 9 Aug 2011 16:03:43 +0000]
ath9k: optimize rate control statistics

for the ease of debugging, we display only the rate control statistics
for currently operating mode and bandwidth

Cc: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Cc: "Balasubramanian, senthilkumar" <senthilb@qca.qualcomm.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomac80211: fix erroneous clearing of MESH_PATH_SN_VALID flag
Javier Cardona [Mon, 8 Aug 2011 23:30:50 +0000]
mac80211: fix erroneous clearing of MESH_PATH_SN_VALID flag

When a PREQ or PREP is received from an intermediate node, it contains
useful information for path selection but it doesn't include the
originator's sequence number.   Therefore, when updating the mesh path
to that intermediate node, we should not set the MESH_PATH_SN_VALID
flag.  BUT, if the flag is set, it should not be unset as we might have
received a valid sequence number for that intermediate node in the past.

This issue was reported, fixed and tested by Ya Bo (游波) and Pedro
Larbig (ASPj).

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k_htc: minor clean-up
Mohammed Shafi Shajakhan [Mon, 8 Aug 2011 15:48:49 +0000]
ath9k_htc: minor clean-up

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomac80211: clear sta.drv_priv on reconfiguration
Eliad Peller [Mon, 8 Aug 2011 13:50:22 +0000]
mac80211: clear sta.drv_priv on reconfiguration

drivers might assume sta.drv_priv is clear while
the sta is added, so clear it on reconfinguration.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agocfg80211/nl80211: Send AssocReq IEs to user space in AP mode
Jouni Malinen [Mon, 8 Aug 2011 09:11:52 +0000]
cfg80211/nl80211: Send AssocReq IEs to user space in AP mode

When user space SME/MLME (e.g., hostapd) is not used in AP mode, the
IEs from the (Re)Association Request frame that was processed in
firmware need to be made available for user space (e.g., RSN IE for
hostapd). Allow this to be done with cfg80211_new_sta().

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agonl80211: Indicate driver-based offchannel TX on mgmt_tx_cancel_wait
Jouni Malinen [Mon, 8 Aug 2011 09:10:30 +0000]
nl80211: Indicate driver-based offchannel TX on mgmt_tx_cancel_wait

Drivers that support frame transmission with mgmt_tx() may not support
driver-based offchannel TX. Use mgmt_tx_cancel_wait instead of mgmt_tx
when figuring out whether to indicate support for this with
NL80211_ATTR_OFFCHANNEL_TX_OK.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomac80211_hwsim: Fix RX status reporting for HT
Jouni Malinen [Sat, 6 Aug 2011 20:07:00 +0000]
mac80211_hwsim: Fix RX status reporting for HT

RX_FLAG_HT must be included when reporting MCS rates. Without
this, mac80211 ended up dropping any frame sent at MCS index 12
or higher and that resulted in oddly random looking errors in
mac80211_hwsim tests.

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoMerge branch 'for-linville' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo...
John W. Linville [Wed, 10 Aug 2011 17:51:19 +0000]
Merge branch 'for-linville' of git://git./linux/kernel/git/kvalo/ath6kl

8 years agoath6kl: fix function name conflicts with ath9k
Kalle Valo [Wed, 10 Aug 2011 06:49:12 +0000]
ath6kl: fix function name conflicts with ath9k

Stephen reported that compilation fails if both ath6kl and ath9k are
compiled in:

drivers/net/wireless/ath/ath6kl/built-in.o: In function `htc_start':
(.opd+0x600): multiple definition of `htc_start'
drivers/net/wireless/ath/ath9k/built-in.o:(.opd+0x3e40): first defined here
drivers/net/wireless/ath/ath6kl/built-in.o: In function `.htc_stop':
(.text+0x7b40): multiple definition of `.htc_stop'
drivers/net/wireless/ath/ath9k/built-in.o:(.text+0x67b34): first defined he=
re
drivers/net/wireless/ath/ath6kl/built-in.o: In function `.htc_start':
(.text+0x7d18): multiple definition of `.htc_start'
drivers/net/wireless/ath/ath9k/built-in.o:(.text+0x67ba0): first defined he=
re
drivers/net/wireless/ath/ath6kl/built-in.o: In function `htc_stop':
(.opd+0x5e8): multiple definition of `htc_stop'
drivers/net/wireless/ath/ath9k/built-in.o:(.opd+0x3e28): first defined here

To fix this add ath6kl prefix to all public functions in htc.c.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

8 years agoMerge branch 'ath6kl-next' of master.kernel.org:/pub/scm/linux/kernel/git/kvalo/ath6kl
John W. Linville [Tue, 9 Aug 2011 20:02:26 +0000]
Merge branch 'ath6kl-next' of /linux/kernel/git/kvalo/ath6kl

8 years agob43: Remove EXPERIMENTAL designation from LP PHY selection
Larry Finger [Sat, 30 Jul 2011 16:30:27 +0000]
b43: Remove EXPERIMENTAL designation from LP PHY selection

Since kernel 3.0, the problems with controlling b43 devices that have
low-power (LP) PHYs have been fixed and the EXPERIMENTAL designation
can be fixed.

This patch also fixes a typo as the device supports 802.11b communications.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agolibertas: remove some dead code in if_spi_prog_helper_firmware()
Dan Carpenter [Sat, 6 Aug 2011 14:23:44 +0000]
libertas: remove some dead code in if_spi_prog_helper_firmware()

We always hit the goto and skip the printk().  The original code does
the right thing even though it looks messy.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agort2x00: Fix PCI interrupt processing race on SMP systems
Helmut Schaa [Sat, 6 Aug 2011 11:13:48 +0000]
rt2x00: Fix PCI interrupt processing race on SMP systems

When toggle_irq is called for PCI devices to disable device interrupts
it used tasklet_disable to wait for a possibly running tasklet to finish.
However, on SMP systems the tasklet might still be scheduled on another CPU.
Instead, use tasklet_kill to ensure that all scheduled tasklets are finished
before returning from toggle_irq.

Furthermore, it was possible that a tasklet reenabled its interrupt even
though interrupts have been disabled already. Fix this by checking the
DEVICE_STATE_ENABLED_RADIO flag before reenabling single interrupts
during tasklet processing.

While at it also enable/kill the TBTT and PRETBTT tasklets in the
toggle_irq callback and only use tasklet_kill in stop_queue to wait
for a currently scheduled beacon update before returning.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agortlwifi: Remove raw read/write routines from header
Larry Finger [Sat, 6 Aug 2011 10:55:19 +0000]
rtlwifi: Remove raw read/write routines from header

Now that the driver no longer uses the raw r/w routines, remove their definitions.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agortlwifi: Eliminate raw reads and writes from PCIe portion
Larry Finger [Sat, 6 Aug 2011 10:55:18 +0000]
rtlwifi: Eliminate raw reads and writes from PCIe portion

The PCIe driver used raw reads and writes on the PCIe hardware.
As all of these are only affecting the configuration space, all of
then can be converted to pci_{read,write}_config_XX calls.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: Use atomic reference count for interrupt ops
Rajkumar Manoharan [Fri, 5 Aug 2011 13:29:41 +0000]
ath9k: Use atomic reference count for interrupt ops

Let us enable/disable interrupts based on reference count.
By doing this we can ensure that interrupts are never be
enabled in the middle of tasklet processing. Instead of
addressing corner cases like "ath9k: avoid enabling interrupts
while processing rx", this approach handles it in generic manner.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k_hw: Fix incorrect spur_freq_sd for AR9003
Rajkumar Manoharan [Fri, 5 Aug 2011 13:29:42 +0000]
ath9k_hw: Fix incorrect spur_freq_sd for AR9003

Spur frequency was incorrectly computed with 10Mhz offset
which could cause the filter would not notch out the spur
and also this could improve rx sensitivity in HT40.

Cc: Madhan Jaganathan <madhanj@qca.qualcomm.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k: do not enable interrupt on set interrupt mask
Rajkumar Manoharan [Fri, 5 Aug 2011 13:29:40 +0000]
ath9k: do not enable interrupt on set interrupt mask

At preset set_interrupt also enables interrupt after changing
mask. This is not necessary in all cases and also sometime it
breaks the assumption that interrupt was disabled. So let us
enable the interrupt explicity if it was disabled earlier.
This could also avoid unnecessary register ops and also helps
the follow up patch to have global ref count for interrupts ops.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agoath9k_hw: use register name in place of magic value
Alex Hacker [Wed, 3 Aug 2011 11:41:54 +0000]
ath9k_hw: use register name in place of magic value

Signed-off-by: Alex Hacker <hacker@epn.ru>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomwifiex: print driver version information
Amitkumar Karwar [Wed, 3 Aug 2011 01:42:23 +0000]
mwifiex: print driver version information

Add code to display driver version information in dmesg after
loading the driver successfully.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agolibertas: implement if_sdio runtime power management
Daniel Drake [Mon, 1 Aug 2011 15:43:27 +0000]
libertas: implement if_sdio runtime power management

The SDIO card is now fully powered down when the network interface is
brought down.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agolibertas: disable functionality when interface is down
Daniel Drake [Mon, 1 Aug 2011 15:43:13 +0000]
libertas: disable functionality when interface is down

Modify the driver so that it does not function when the interface is
down, in preparation for runtime power management.

No commands can be run while the interface is down, so the ndo_dev_stop
routine now directly does all necessary work (including asking the device
to disconnect from the network and disabling multicast functionality)
directly.

power_save and power_restore hooks are added meaning that card drivers
can take steps to turn the device off when the interface is down.

The MAC address can now only be changed when all interfaces are down;
the new address will be programmed when an interface gets brought up.
This matches mac80211 behaviour.

Also, some small cleanups/simplifications were made in the surrounding
device handling logic.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

8 years agomac80211: Don't use EAPOL frames for rate sampling
Helmut Schaa [Mon, 1 Aug 2011 09:32:53 +0000]
mac80211: Don't use EAPOL frames for rate sampling

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>