Commit Graph

18248 Commits

Author SHA1 Message Date
Kalle Valo
24cfade11e ath10k: add boot debug messages to pci.c and ce.c
To unify all boot related debug messages into one debug
level.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-12 18:21:37 +03:00
Kalle Valo
effea9688d ath10k: cleanup debug messages in core.c
Fix them to follow the general logging style in ath10k.

While at it, add print id chip_id to the debug log.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-12 18:21:37 +03:00
Kalle Valo
b52b7688ac ath10k: rename ATH10K_DBG_CORE to BOOT
core.c mostly deals with driver and firmware starting related
actions. And we can use the boot level also in other components,
like PCI and HTT.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-12 18:21:36 +03:00
Kalle Valo
f0bbea9981 ath10k: add BMI log level
Also clean BMI log messages and add few more.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-12 18:21:36 +03:00
Bartosz Markowski
4ed998dcbf ath10k: define ath10k_debug_start/_stop as static inline
Otherwise if CONFIG_ATH10K_DEBUGFS won't be set we will
end up with multiple definitions and compilation failure
in each place the header is included.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-10 01:28:29 +03:00
Stanislaw Gruszka
f4e1a4d3ec rt2800: change initialization sequence to fix system freeze
My commit

commit c630ccf1a1
Author: Stanislaw Gruszka <stf_xl@wp.pl>
Date:   Sat Mar 16 19:19:46 2013 +0100

    rt2800: rearrange bbp/rfcsr initialization

make Maxim machine freeze when try to start wireless device.

Initialization order and sending MCU_BOOT_SIGNAL request, changed in
above commit, is important. Doing things incorrectly make PCIe bus
problems, which can froze the machine.

This patch change initialization sequence like vendor driver do:
function NICInitializeAsic() from
2011_1007_RT5390_RT5392_Linux_STA_V2.5.0.3_DPO (PCI devices) and
DPO_RT5572_LinuxSTA_2.6.1.3_20121022 (according Mediatek, latest driver
for RT8070/RT3070/RT3370/RT3572/RT5370/RT5372/RT5572 USB devices).
It fixes freezes on Maxim system.

Resolve:
https://bugzilla.redhat.com/show_bug.cgi?id=1000679

Reported-and-tested-by: Maxim Polyakov <polyakov@dexmalabs.com>
Bisected-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-09 14:44:34 -04:00
Alexey Khoroshilov
8a10da2646 rtl8187: fix use after free on failure path in rtl8187_init_urbs()
In case of __dev_alloc_skb() failure rtl8187_init_urbs()
calls usb_free_urb(entry) where 'entry' can points to urb
allocated at the previous iteration. That means refcnt will be
decremented incorrectly and the urb can be used after memory
deallocation.

The patch fixes the issue and implements error handling of init_urbs
in rtl8187_start().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-09 14:42:00 -04:00
Arend van Spriel
c4bff5d99d brcmfmac: fix bus interface selection in Kconfig
The kernel configuration for the driver could result in
compilation issues as reported by Randy Dunlap. His results
are show below:

"on x86_64:

when
CONFIG_MMC=m
CONFIG_BRCMUTIL=y
CONFIG_BRCMFMAC=y
CONFIG_BRCMFMAC_SDIO=y

This bool kconfig symbol:

config BRCMFMAC_SDIO
	bool "SDIO bus interface support for FullMAC driver"
	depends on MMC

allows BRCMFMAC_SDIO to be y even when MMC=m.

Is there a reasonable solution to this?

This causes many build errors:

drivers/built-in.o: In function `brcmf_sdio_assert_info':
dhd_sdio.c:(.text+0x39609b): undefined reference to `sdio_claim_host'
dhd_sdio.c:(.text+0x3960d9): undefined reference to `sdio_release_host'
drivers/built-in.o: In function `brcmf_sdio_readframes':
dhd_sdio.c:(.text+0x396a62): undefined reference to `sdio_claim_host'
dhd_sdio.c:(.text+0x396a9b): undefined reference to `sdio_release_host'
..."

This patch adds the appropriate logic in Kconfig to resolve
these issues. The solution was provided by Hauke Mehrtens.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-09 14:40:54 -04:00
Solomon Peachy
85ba8f529c cw1200: Prevent a lock-related hang in the cw1200_spi driver
The cw1200_spi driver tries to mirror the cw1200_sdio driver's lock
API, which relies on sdio_claim_host/sdio_release_host to serialize
hardware operations across multiple threads.

Unfortunately the implementation was flawed, as it lacked a way to wake
up the lock requestor when there was contention, often resulting in a
hang.

This problem was uncovered while trying to fix the
spi-transfers-in-interrupt-context BUG() corrected in the previous
patch.  Many thanks to Dave Sizeburns for his assistance in fixing this.

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-09 14:40:54 -04:00
Solomon Peachy
aec8e88c94 cw1200: Don't perform SPI transfers in interrupt context
When we get an interrupt from the hardware, the first thing the driver does
is tell the device to mask off the interrupt line.  Unfortunately this
involves a SPI transaction in interrupt context.  Some (most?) SPI
controllers perform the transfer asynchronously and try to sleep.
This is bad, and triggers a BUG().

So, work around this by using adding a hwbus hook for the cw1200 driver
core to call.  The cw1200_spi driver translates this into
irq_disable()/irq_enable() calls instead, which can safely be called in
interrupt context.

Apparently the platforms I used to develop the cw1200_spi driver used
synchronous spi_sync() implementations, which is why this didn't surface
until now.

Many thanks to Dave Sizeburns for the inital bug report and his services
as a tester.

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-09 14:40:53 -04:00
Michal Kazior
5440ce2537 ath10k: prevent CE from looping indefinitely
The double while() could end up running forever.
Inner while() would complete very fast. However
the completion processing could take enough time
for more completions to flow in. In that case the
outer while() would not terminate and run again,
and again. This could happen especially on a slow
host system.

This could lead to a system freeze during heavy
traffic. Note: this doesn't solve all known
starvation issues yet.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-08 17:59:32 +03:00
Linus Torvalds
2e515bf096 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree from Jiri Kosina:
 "The usual trivial updates all over the tree -- mostly typo fixes and
  documentation updates"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (52 commits)
  doc: Documentation/cputopology.txt fix typo
  treewide: Convert retrun typos to return
  Fix comment typo for init_cma_reserved_pageblock
  Documentation/trace: Correcting and extending tracepoint documentation
  mm/hotplug: fix a typo in Documentation/memory-hotplug.txt
  power: Documentation: Update s2ram link
  doc: fix a typo in Documentation/00-INDEX
  Documentation/printk-formats.txt: No casts needed for u64/s64
  doc: Fix typo "is is" in Documentations
  treewide: Fix printks with 0x%#
  zram: doc fixes
  Documentation/kmemcheck: update kmemcheck documentation
  doc: documentation/hwspinlock.txt fix typo
  PM / Hibernate: add section for resume options
  doc: filesystems : Fix typo in Documentations/filesystems
  scsi/megaraid fixed several typos in comments
  ppc: init_32: Fix error typo "CONFIG_START_KERNEL"
  treewide: Add __GFP_NOWARN to k.alloc calls with v.alloc fallbacks
  page_isolation: Fix a comment typo in test_pages_isolated()
  doc: fix a typo about irq affinity
  ...
2013-09-06 09:36:28 -07:00
Bartosz Markowski
b8a1e00f1a ath10k: remove obsolete INIT STATUS definitions
There's no functional changes. Just a small cleanup.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-06 12:50:46 +03:00
Bartosz Markowski
03fc137b50 ath10k: set the UART baud rate to 19200
When configuring the host_interests over BMI, set the UART
baud rate to 19200. This is valid for QCA988X_2.0 devices.

kvalo: found during code review, there should not be any functionality
changes

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-06 12:49:17 +03:00
Kalle Valo
a3d135e566 ath10k: add htt_stats_enable debugfs file
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-06 12:42:26 +03:00
Kalle Valo
db66ea0442 ath10k: implement ath10k_debug_start/stop()
Needed for the HTT stats implementation.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-06 12:42:26 +03:00
Kalle Valo
a9bf05062d ath10k: add trace event ath10k_htt_stats
For analysing various data path statistics in user space.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-06 12:42:25 +03:00
Dave Jones
55d761b878 ath10k: add missing braces to ath10k_pci_tx_pipe_cleanup
The indentation here implies this was meant to be
a multi-statement if, but it lacks the braces.

kvalo: add "ath10k: " prefix

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-06 12:31:10 +03:00
Linus Torvalds
cc998ff881 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking changes from David Miller:
 "Noteworthy changes this time around:

   1) Multicast rejoin support for team driver, from Jiri Pirko.

   2) Centralize and simplify TCP RTT measurement handling in order to
      reduce the impact of bad RTO seeding from SYN/ACKs.  Also, when
      both timestamps and local RTT measurements are available prefer
      the later because there are broken middleware devices which
      scramble the timestamp.

      From Yuchung Cheng.

   3) Add TCP_NOTSENT_LOWAT socket option to limit the amount of kernel
      memory consumed to queue up unsend user data.  From Eric Dumazet.

   4) Add a "physical port ID" abstraction for network devices, from
      Jiri Pirko.

   5) Add a "suppress" operation to influence fib_rules lookups, from
      Stefan Tomanek.

   6) Add a networking development FAQ, from Paul Gortmaker.

   7) Extend the information provided by tcp_probe and add ipv6 support,
      from Daniel Borkmann.

   8) Use RCU locking more extensively in openvswitch data paths, from
      Pravin B Shelar.

   9) Add SCTP support to openvswitch, from Joe Stringer.

  10) Add EF10 chip support to SFC driver, from Ben Hutchings.

  11) Add new SYNPROXY netfilter target, from Patrick McHardy.

  12) Compute a rate approximation for sending in TCP sockets, and use
      this to more intelligently coalesce TSO frames.  Furthermore, add
      a new packet scheduler which takes advantage of this estimate when
      available.  From Eric Dumazet.

  13) Allow AF_PACKET fanouts with random selection, from Daniel
      Borkmann.

  14) Add ipv6 support to vxlan driver, from Cong Wang"

Resolved conflicts as per discussion.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1218 commits)
  openvswitch: Fix alignment of struct sw_flow_key.
  netfilter: Fix build errors with xt_socket.c
  tcp: Add missing braces to do_tcp_setsockopt
  caif: Add missing braces to multiline if in cfctrl_linkup_request
  bnx2x: Add missing braces in bnx2x:bnx2x_link_initialize
  vxlan: Fix kernel panic on device delete.
  net: mvneta: implement ->ndo_do_ioctl() to support PHY ioctls
  net: mvneta: properly disable HW PHY polling and ensure adjust_link() works
  icplus: Use netif_running to determine device state
  ethernet/arc/arc_emac: Fix huge delays in large file copies
  tuntap: orphan frags before trying to set tx timestamp
  tuntap: purge socket error queue on detach
  qlcnic: use standard NAPI weights
  ipv6:introduce function to find route for redirect
  bnx2x: VF RSS support - VF side
  bnx2x: VF RSS support - PF side
  vxlan: Notify drivers for listening UDP port changes
  net: usbnet: update addr_assign_type if appropriate
  driver/net: enic: update enic maintainers and driver
  driver/net: enic: Exposing symbols for Cisco's low latency driver
  ...
2013-09-05 14:54:29 -07:00
Linus Torvalds
27703bb4a6 PTR_RET() is a weird name, and led to some confusing usage. We ended
up with PTR_ERR_OR_ZERO(), and replacing or fixing all the usages.
 
 This has been sitting in linux-next for a whole cycle.
 
 Thanks,
 Rusty.
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Merge tag 'PTR_RET-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull PTR_RET() removal patches from Rusty Russell:
 "PTR_RET() is a weird name, and led to some confusing usage.  We ended
  up with PTR_ERR_OR_ZERO(), and replacing or fixing all the usages.

  This has been sitting in linux-next for a whole cycle"

[ There are still some PTR_RET users scattered about, with some of them
  possibly being new, but most of them existing in Rusty's tree too.  We
  have that

      #define PTR_RET(p) PTR_ERR_OR_ZERO(p)

  thing in <linux/err.h>, so they continue to work for now  - Linus ]

* tag 'PTR_RET-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  GFS2: Replace PTR_RET with PTR_ERR_OR_ZERO
  Btrfs: volume: Replace PTR_RET with PTR_ERR_OR_ZERO
  drm/cma: Replace PTR_RET with PTR_ERR_OR_ZERO
  sh_veu: Replace PTR_RET with PTR_ERR_OR_ZERO
  dma-buf: Replace PTR_RET with PTR_ERR_OR_ZERO
  drivers/rtc: Replace PTR_RET with PTR_ERR_OR_ZERO
  mm/oom_kill: remove weird use of ERR_PTR()/PTR_ERR().
  staging/zcache: don't use PTR_RET().
  remoteproc: don't use PTR_RET().
  pinctrl: don't use PTR_RET().
  acpi: Replace weird use of PTR_RET.
  s390: Replace weird use of PTR_RET.
  PTR_RET is now PTR_ERR_OR_ZERO(): Replace most.
  PTR_RET is now PTR_ERR_OR_ZERO
2013-09-04 17:31:11 -07:00
Joe Perches
9e03aa2f83 treewide: Convert retrun typos to return
Tyops should be fixed.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-09-04 12:26:36 +02:00
Joe Perches
7367d0b573 drivers/net: Convert uses of compare_ether_addr to ether_addr_equal
Use the new bool function ether_addr_equal to add
some clarity and reduce the likelihood for misuse
of compare_ether_addr for sorting.

Done via cocci script: (and a little typing)

$ cat compare_ether_addr.cocci
@@
expression a,b;
@@
-	!compare_ether_addr(a, b)
+	ether_addr_equal(a, b)

@@
expression a,b;
@@
-	compare_ether_addr(a, b)
+	!ether_addr_equal(a, b)

@@
expression a,b;
@@
-	!ether_addr_equal(a, b) == 0
+	ether_addr_equal(a, b)

@@
expression a,b;
@@
-	!ether_addr_equal(a, b) != 0
+	!ether_addr_equal(a, b)

@@
expression a,b;
@@
-	ether_addr_equal(a, b) == 0
+	!ether_addr_equal(a, b)

@@
expression a,b;
@@
-	ether_addr_equal(a, b) != 0
+	ether_addr_equal(a, b)

@@
expression a,b;
@@
-	!!ether_addr_equal(a, b)
+	ether_addr_equal(a, b)

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03 22:28:04 -04:00
David S. Miller
e7abfe4092 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
John W. Linville says:

====================
Please accept this batch of updates intended for the 3.12 stream.

For the mac80211 bits, Johannes says this:

"This time I have various improvements all over the place: IBSS, mesh,
testmode, AP client powersave handling, one of the rare rfkill patches
and some code cleanup."

Also for mac80211:

"And I also have some more changes for -next, just a few small fixes and
improvements, nothing really stands out."

And for iwlwifi:

"This time I have some powersave work (notably uAPSD support), CQM
offloads, support for a new firmware API and various code cleanups."

Regarding the Bluetooth bits, Gustavo says:

"Patches to 3.12, here we have:

* implementation of a proper tty_port for RFCOMM devices, this fixes some
issues people were seeing lately in the kernel.
* Add voice_setting option for SCO, it is used for SCO Codec selection
* bugfixes, small improvements and clean ups"

For the NFC bits, Samuel says:

"With this one we have:

- A few pn533 improvements and minor fixes. Testing our pn533 driver
  against Google's NCI stack triggered a few issues that we fixed now.
  We also added Tx fragmentation support to this driver.

- More NFC secure element handling. We added a GET_SE netlink command
  for getting all the discovered secure elements, and we defined 2
  additional secure element netlink event (transaction and connectivity).
  We also fixed a couple of typos and copy-paste bugs from the secure
  element handling code.

- Firmware download support for the pn544 driver. This chipset can enter a
  special mode where it's waiting for firmware blobs to replace the
  already flashed one. We now support that mode."

With repect to the ath tree, Kalle says:

"New features in ath10k are rx/tx checsumming in hw and survey scan
implemented by Michal. Also he made fixes to different areas of the
driver, most notable being fixing the case when using two streams and
reducing the number of interface combinations to avoid firmware crashes.
Bartosz did a clean related to how we handle SoC power save in PCI
layer.

For ath6kl Mohammed and Vasanth sent each a patch to fix two infrequent
crashes."

I also pulled the wireless tree into wireless-next to support a
request from Johannes.  On top of all that, there are the usual
sort of driver updates.  The mwifiex, brcmfmac, brcmsmac, ath9k,
and rt2x00 drivers all get some attention, as does the bcma bus and
a few other random bits here and there.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03 21:45:31 -04:00
Bjørn Mork
d32a96e26a net: libertas: inherit addr_assign_type along with dev_addr
A device inheriting a random or set address should reflect this in
its addr_assign_type.

Acked-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03 20:57:50 -04:00
Bjørn Mork
db181347e8 net: hostap: inherit addr_assign_type along with dev_addr
A device inheriting a random or set address should reflect this in
its addr_assign_type.

Cc: Jouni Malinen <j@w1.fi>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03 20:57:49 -04:00
Bjørn Mork
252352cb5e net: airo: inherit addr_assign_type along with dev_addr
A device inheriting a random or set address should reflect this in
its addr_assign_type.

Acked-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-03 20:57:49 -04:00
Kalle Valo
763b8cd314 ath10k: add chip_id file to debugfs
So that's it's possible to query chip id from ath10k anytime.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-03 09:59:53 +03:00
Kalle Valo
e01ae68c5d ath10k: check chip id from the soc register during probe
ath10k doesn't support qca988x hw1.0 boards anymore. Unfortunately
the PCI id is the same in hw1.0 and hw2.0 so ath10k tries to use
hw1.0 boards anyway. But without hw1.0 workarounds in place
ath10k just crashes horribly.

To avoid using hw1.0 boards at all add a chip id detection
and fail the probe if hw1.0 is detected:

[ 5265.786408] ath10k: ERROR: qca988x hw1.0 is not supported
[ 5265.786497] ath10k: Unsupported chip id 0x043200ff
[ 5265.786574] ath10k: could not register driver core (-95)
[ 5265.793191] ath10k_pci: probe of 0000:02:00.0 failed with error -95

Also add a warning if there's an unknown chip id but continue
the boot process normally anyway.

Reported-by: Zaki Bakar <zaki.bm@gmail.com>
Tested-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-03 09:54:16 +03:00
Kalle Valo
e9780367b0 ath10k: simplify ath10k_ce_init() wake up handling
ath10k_ce_init() and the functions it calls wakeup
the chip multiple times. Simplify that to call
ath10k_pci_wake() only once. This also makes it
easier to add error handling when wakeup fails.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-03 09:49:08 +03:00
Kalle Valo
3aebe54b1c ath10k: convert ath10k_pci_wake() to return
We should not try to access hw if wakeup fails so add
proper error checking for that. Also add the timeout lenght
to the warning message.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-03 09:49:08 +03:00
Kalle Valo
a40d3e420d ath10k: clean up ath10k_ce_completed_send_next_nolock()
The error handling was just weird, simplify it.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-03 09:49:07 +03:00
Kalle Valo
e479ed437b ath10k: convert ath10k_pci_reg_read/write32() to take struct ath10k
This is consistent with all other functions.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-03 09:49:07 +03:00
Kalle Valo
aa5c1db445 ath10k: remove void pointer from struct ath10k_pci_compl
Void pointers are bad, mmkay.

No functional changes.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-03 09:49:07 +03:00
Kalle Valo
d88effbaa6 ath10k: make target_ce_config_wlan more readable
It's easier to read t if the field names are visible.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-03 09:49:07 +03:00
Kalle Valo
48e9c225ab ath10k: pci: make host_ce_config_wlan[] more readable
It's much more readable if struct entries in host_ce_config_wlan
are explicitly set.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-03 09:49:07 +03:00
Kalle Valo
a18b5ed8d2 ath10k: remove un ar_pci->cacheline_sz field
cacheline_sz is not used anywhere and can be removed.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-01 09:38:18 +03:00
Michal Kazior
d21fb959d1 ath10k: rename ce_ring_state to ath10k_ce_ring
The new naming makes more sense.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-01 09:28:47 +03:00
Michal Kazior
2aa3911573 ath10k: rename ce_state to ath10k_ce_pipe
The new naming makes more sense.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-01 09:27:50 +03:00
Michal Kazior
87263e5bb4 ath10k: rename hif_ce_pipe_info to ath10k_pci_pipe
The new naming makes more sense.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-01 09:27:49 +03:00
Michal Kazior
6702bad406 ath10k: remove unused ce_attr parameters
Some parameters were unused and are not required.
They have no representation in firmware. Clean
them up.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-01 09:27:49 +03:00
Michal Kazior
774c7e8c2b ath10k: remove ce_op_state
It was only written to and never read back. No use
to keep it around.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-01 09:27:49 +03:00
Michal Kazior
39e4086a73 ath10k: use inline ce_state structure
Simplifies memory managament of ce_state.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-01 09:21:45 +03:00
Joe Perches
ede23fa816 drivers:net: Convert dma_alloc_coherent(...__GFP_ZERO) to dma_zalloc_coherent
__GFP_ZERO is an uncommon flag and perhaps is better
not used.  static inline dma_zalloc_coherent exists
so convert the uses of dma_alloc_coherent with __GFP_ZERO
to the more common kernel style with zalloc.

Remove memset from the static inline dma_zalloc_coherent
and add just one use of __GFP_ZERO instead.

Trivially reduces the size of the existing uses of
dma_zalloc_coherent.

Realign arguments as appropriate.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-29 21:55:23 -04:00
Solomon Peachy
076f0d20b6 cw1200: When debug is enabled, display all wakeup conditions for the wait_event_interruptible_timeout() call.
When trying to debug an interrupt delivery problem I noticed that not
all of the wakeup conditions on the worker thread were included in the
debug message.  This patch rectifies that.

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-28 13:58:29 -04:00
Solomon Peachy
7f190230ba cw1200: Display the correct default reference clock.
This is purely a cosmetic bug.

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-28 13:58:28 -04:00
Masami Ichikawa
708ff08353 rt2800usb: Add WLI-UC-G300HP's Product ID.
Support Bufallo WLI-UC-G300HP.

Signed-off-by: Masami Ichikawa <masami256@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-28 13:58:28 -04:00
Sujith Manoharan
27251e0087 ath9k: Enable D3/L1 ASPM fix for AR9462
AR9462 requires this HW fix for ASPM to work properly.
Also, since WARegVal is used only for the AR8003 family,
use AR_SREV_9300_20_OR_LATER.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-28 13:58:27 -04:00
Sujith Manoharan
65c1a4de59 ath9k: Remove unused ANI commands
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-28 13:58:27 -04:00
Bing Zhao
a16b635f24 mwifiex: break a long line into two lines
It exceeded 80 characters. Split it into two lines.

Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-28 13:58:27 -04:00
John W. Linville
f3e979a52c Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2013-08-28 13:51:40 -04:00
John W. Linville
53b2f82848 ath9k: ar9003_eeprom.c:3618 fix variable name typo
drivers/net/wireless/ath/ath9k/ar9003_eeprom.c: In function 'ar9003_hw_ant_ctrl_apply':
>> drivers/net/wireless/ath/ath9k/ar9003_eeprom.c:3618: warning: 'regval' is used uninitialized in this function

It seems obvious that 'regval' should have been 'value'...

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-28 11:05:36 -04:00
John W. Linville
b35c809708 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts:
	drivers/net/wireless/iwlwifi/pcie/trans.c
	net/mac80211/ibss.c
2013-08-28 10:36:09 -04:00
Mohammed Shafi Shajakhan
e2951f7ff8 ath10k: Fix mutex unlock balance
ath10k_debug_read_target_stats is properly
protected by data_lock (spinlock). Remove
the unwanted mutex_unlock(&ar->conf_mutex)

[ BUG: bad unlock balance detected! ]
-------------------------------------
kworker/u4:0/12459 is trying to release lock
(&ar->conf_mutex) at:
[<c16a170d>] mutex_unlock+0xd/0x10
but there are no more locks to release!

 Call Trace:
  [<c16a170d>] ? mutex_unlock+0xd/0x10
  [<c10b697d>] __lock_release+0x4d/0xe0
  [<f88ca0fc>] ? ath10k_debug_read_target_stats+0xac/0x290

  [<c16a170d>] ? mutex_unlock+0xd/0x10
  [<c10b6a5b>] lock_release+0x4b/0x150
  [<c16a1580>] __mutex_unlock_slowpath+0x70/0x150
  [<f88ca0fc>] ? ath10k_debug_read_target_stats+0xac/0x290

  [<c10b456b>] ? trace_hardirqs_on+0xb/0x10
  [<c16a170d>] mutex_unlock+0xd/0x10
  [<f88ca107>] ath10k_debug_read_target_stats+0xb7/0x290

  [<f88d337a>] ath10k_wmi_event_process+0x3fa/0x6e0

  [<c10b456b>] ? trace_hardirqs_on+0xb/0x10
  [<f88d36e1>] ath10k_wmi_event_work+0x21/0x40
               [ath10k_core]

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-28 07:08:27 +03:00
David S. Miller
b05930f5d1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/wireless/iwlwifi/pcie/trans.c
	include/linux/inetdevice.h

The inetdevice.h conflict involves moving the IPV4_DEVCONF values
into a UAPI header, overlapping additions of some new entries.

The iwlwifi conflict is a context overlap.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-26 16:37:08 -04:00
Stanislaw Gruszka
6e956da202 rt2800: fix wrong TX power compensation
We should not do temperature compensation on devices without
EXTERNAL_TX_ALC bit set (called DynamicTxAgcControl on vendor driver).
Such devices can have totally bogus TSSI parameters on the EEPROM,
but still threaded by us as valid and result doing wrong TX power
calculations.

This fix inability to connect to AP on slightly longer distance on
some Ralink chips/devices.

Reported-and-tested-by: Fabien ADAM <id2ndr@crocobox.org>
Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:10:40 -04:00
Andrea Merello
93ba2a856f Update e-mail address for Andrea Merello (resubmit)
A lot of files contain reference to my old e-mail address.
Now I'm going not to read mail from it anymore, so update it
with my current address everywhere.

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:10:40 -04:00
Sujith Manoharan
e5614a91be ath9k: Fix DEBUG_FS dependency for ath9k
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:10:39 -04:00
Wei Yongjun
58fe431342 zd1201: fix error return code
Fix to return -ENOMEM in the memory alloc error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:10:39 -04:00
Tobias Waldekranz
cfcd926ea2 mwifiex: add missing endian conversions
Fixes multiple locations where a little endian host is assumed during
ser/des of messages sent to/received from the chip.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:10:38 -04:00
Sujith Manoharan
d4c04ba141 ath9k: Fix TX poll work locking
There is no need to call ath_txq_unlock_complete() in the
TX poll routine - frame completion is not done here,
so use ath_txq_unlock().

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:09:07 -04:00
Sujith Manoharan
d1ae25a017 ath9k: Fix ASPM workaround usage
The PCIE Workaround register (AR_WA/0x4004) is used to handle
various hardware quirks. For AR9002 chips, AR_WA_D3_L1_DISABLE
is used to prevent the HW from automatically entering L1 state
when D3 is enforced.

AR_WA_D3_L1_DISABLE has to be enabled for a few AR9280 based
cards, mark them based on their PCI subdevice/subvendor IDs
and enforce it in ar9002_hw_configpcipowersave().

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:09:06 -04:00
Djalal Harouni
8aada63cc4 ath5k: debugfs: NULL-terminate strings
Avoid processing garbage data by NULL terminating the strings.

Signed-off-by: Djalal Harouni <tixxdz@opendz.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:09:06 -04:00
Sujith Manoharan
b380a43b52 ath9k: Fix ASPM for AR9462
If the L1 entrance latency is not calibrated properly
in the EEPROM in WB222 boards, there could be problems
in connectivity. Check and correct the calibrated value
if it doesn't match the optimal value for WB222, 4us.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:09:05 -04:00
Avinash Patil
587b36d364 mwifiex: drop gratuitous ARP frames
This patch adds support for dropping gratuitous ARP frames which is
requirement for WFA Hotspot2.0.

Hotspot2.0 capability is enabled in driver if extended capabilities
IE from BSS descriptor has 11u interworking enabled.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:09:05 -04:00
Avinash Patil
68f95b09c8 mwifiex: fix ext_capab IE structure definition
EXT_CAPAB_IE format involves IEEE header followed by bytestream of
capabilities. Current structure has incorrect member u8 for data;
fix it by defining it as u8[0].

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:09:05 -04:00
Amitkumar Karwar
027d3307f4 mwifiex: fix driver unload problem for usb chipsets
We have usb_deregister() call in our rmmod routine. deauth,
shutdown etc. commands will be sent to FW later when bus
driver calls disconnect handler.

This mechanism works fine with SDIO and PCIe interfaces, but
there is an issue with USB.

USB bus driver returns all URBs submitted for receiving data
and command response immediately after usb_deregister() with
failure status. Hence we don't send deauth, shutdown etc.
command to firmware.

The problem is fixed by moving code from disconnect handler to
rmmod routine for USB interface.

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>
2013-08-26 14:09:04 -04:00
Hauke Mehrtens
50023008f6 b43: call PCIe up and down functions
Tell the PCIe host core when the wifi is activated.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:09:04 -04:00
Hauke Mehrtens
aa51e598d0 brcmsmac: use bcma PCIe up and down functions
replace the calls to bcma_core_pci_extend_L1timer() by calls to the
newly introduced bcma_core_pci_ip() and bcma_core_pci_down()

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:09:03 -04:00
Gabor Juhos
634b80595f rt2x00: rt2800lib: don't hardcode beacon offsets
The values written into the BCN_OFFSET[01] registers are
hardcoded in the rt2800_init_register function.

Add a macro and a helper function to derive these values
directly from the base address of a given beacon, and use
the new function instead of the hardcoded numbers.

The patch contains no functional changes. The programmed
register values are the same before and after the patch.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:09:01 -04:00
Gabor Juhos
21c6af6b69 rt2x00: rt2800lib: add rt2800_hw_beacon_base helper
The HW_BEACON_BASE() macro returns the base address
of a given beacon, however the returned values are
not usable on all chipsets. On devices which have
selectable shared memory parts, some beacon may be
located in the high part of the shared memory.

Instead of extending the already complicated macro,
add a new helper function and use that to get the
base address of a given beacon.

The actual patch contains no functional changes, the
helper function will be extended in a further patch
to handle different chipsets' requirements.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-26 14:09:01 -04:00
Wei Yongjun
bcdd822007 mac80211_hwsim: fix error return code in init_mac80211_hwsim()
Fix to return -ENOMEM in the netdev alloc error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-26 09:52:58 +02:00
Vladimir Kondratiev
19504cf5f3 cfg80211: add flags to cfg80211_rx_mgmt()
Add flags intended to report various auxiliary information
and introduce the NL80211_RXMGMT_FLAG_ANSWERED flag to report
that the frame was already answered by the device.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
[REPLIED->ANSWERED, reword commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-23 16:06:03 +02:00
Johannes Berg
1fb9026000 mac80211: move setting WIPHY_FLAG_SUPPORTS_SCHED_SCAN into drivers
mac80211 currently sets WIPHY_FLAG_SUPPORTS_SCHED_SCAN based on whether
the start_sched_scan operation is supported or not, but that will not
be correct for all drivers, we're adding scheduled scan to the iwlmvm
driver but it depends on firmware support.

Therefore, move setting WIPHY_FLAG_SUPPORTS_SCHED_SCAN into the drivers
so that they can control it regardless of implementing the operation.

This currently only affects the TI drivers since they're the only ones
implementing scheduled scan (in a mac80211 driver.)

Acked-by: Luciano Coelho <luca@coelho.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-23 12:02:26 +02:00
Arend van Spriel
20c7d42a50 brcmsmac: add support for BCM4313 iPA variant
This patch completes the changes needed for supporting the
iPA variant cards of the BCM4313 wireless chipset.

Tested-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:35 -04:00
Arend van Spriel
d37c8f0826 brcmsmac: reinitialize TSSI power control upon channel switch
When changing channels the TSSI based power control needs to be
reinitialized.

Tested-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:35 -04:00
Arend van Spriel
118e545a2c brcmsmac: correct phy registers for TSSI-based power control
A number of additional phy registers needs to be programmed when
using TSSI-based power control.

Tested-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:34 -04:00
Arend van Spriel
02fcc7535e brcmsmac: rework switch control table init including iPA BT-combo
Rework the code path in lcnphy tbl_init() for switch control
table programming. This also takes the iPA BT-combo card into
account.

Tested-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:34 -04:00
Arend van Spriel
3e72ef73c3 brcmsmac: avoid calling set_txpwr_by_index() twice
For lcnphy revision 1 or when hardware supports i/q calibration the
function wlc_lcnphy_set_txpwr_by_index() was called twice.

Tested-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:33 -04:00
Arend van Spriel
d50ec00160 brcmsmac: fix TSSI idle estimation
The baseband multiplier must be zero during TSSI idle estimation
and restored afterwards.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Tested-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:33 -04:00
Arend van Spriel
7de646854b brcmsmac: change lcnphy receive i/q calibration routine
The gain level control for the test tone has been changed. This
calbration test tone is used to determine the i/q compensation.
The i/q calibration routine has been reworked to accomodate this.

Cc: Jonas Gorski <jogo@openwrt.org>
Tested-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:33 -04:00
Arend van Spriel
ab9a50e387 brcmsmac: update transmit gain table for lcn phy
Update the transmit gain table for bcm4313 chip family.

Tested-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:32 -04:00
Arend van Spriel
67e39c5ae7 brcmsmac: add debug info message providing phy and radio info
For debug purposes it is good to have the phy and radio information
available in the log. Only logged when driver is built when BRCMDBG
or BRCM_TRACING kconfig are set.

Tested-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:32 -04:00
Arend van Spriel
d6b81daaa2 brcmsmac: use ARRAY_SIZE in phytbl_lcn.c
This patch converts all sizeof(x)/sizeof(x[0]) instances to
ARRAY_SIZE macro in phytbl_lcn.c. The patch was made using
spatch with ARRAY_SIZE.cocci (see [1]).

[1] https://github.com/coccinelle/coccinelle/tree/master/demos/janitorings

Cc: Jonas Gorski <jogo@openwrt.org>
Tested-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:31 -04:00
Arend van Spriel
acf97e9b5a brcmsmac: change pa_gain for bcm4313 iPA
The function wlc_lcnphy_load_tx_gain_table() has a target PA
gain specified for the iPA variant of the bcm4313. This gain
value is reduced to avoid PA distortion. The if-statement is
removed because it was rather redundant in the first place.
Please note that this patch does not provide full iPA support.

Cc: Jonas Gorski <jogo@openwrt.org>
Tested-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:31 -04:00
Arend van Spriel
02ab8567ef brcmsmac: cosmetic change in phy_lcn.c
Cleaning up some code fragments reducing indentation and uncluttering
some lines. Apart from whitespace there are no actual code changes
made.

Cc: Jonas Gorski <jogo@openwrt.org>
Tested-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:30 -04:00
Sujith Manoharan
f4d907046c ath9k: Add one more PCI ID for CUS198
This is a AR9485/WB225 based card.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:30 -04:00
Bing Zhao
1211c96117 mwifiex: do not create AP and P2P interfaces upon driver loading
Bug 60747 - 1286:2044 [Microsoft Surface Pro]
    Marvell 88W8797 wifi show 3 interface under network
https://bugzilla.kernel.org/show_bug.cgi?id=60747

This issue was also reported previously by OLPC and some folks from
the community.

There are 3 network interfaces with different types being created
when mwifiex driver is loaded:

1. mlan0 (infra. STA)
2. uap0 (AP)
3. p2p0 (P2P_CLIENT)

The Network Manager attempts to use all 3 interfaces above without
filtering the managed interface type. As the result, 3 identical
interfaces are displayed under network manager. If user happens to
click on an entry under which its interface is uap0 or p2p0, the
association will fail.

Work around it by removing the creation of AP and P2P interfaces
at driver loading time. These interfaces can be added with 'iw' or
other applications manually when they are needed.

Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:30 -04:00
Sujith Manoharan
e083a42ef6 ath9k: Add antenna diversity tweak for CUS198
This improves RX diversity and performance for AR9485.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:29 -04:00
Sujith Manoharan
fb5a2dcbbc ath9k: Add support for AR9485 1.2
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:29 -04:00
Gabor Juhos
e979a8ab20 rt2x00: rt2800lib: adjust frequency offset for RF3053
Along with other chipsets, the Ralink driver uses the
frequency adjustment code for RF3053 as well. Remove
the bogus place-holder comment from the RF3053 specific
channel configuration function and call the frequency
adjustment function instead

Based on the DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.

Reference:
  RT3593_ChipSwitchChannel function in chips/rt3593.c

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:28 -04:00
Gabor Juhos
3f1b8739a4 rt2x00: rt2800lib: move rt2800_adjust_freq_offset function
Move the rt2800_adjust_freq_offset function before
the channel configuration functions to make it usable
from those without a forward declaration.

The patch contains no functional changes.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:28 -04:00
Gabor Juhos
8d38eca8e0 rt2x00: rt2800lib: use step-by-step frequency offset adjustment on MMIO devices
According to the DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver, the RFCSR17 register can't be programmed in
one step on devices which are using the frequency
offset adjustment code.

Update the code to use step-by-step adjustment.

Reference:
  RT30xxWriteRFRegister function in common/rt_rf.c

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:27 -04:00
Gabor Juhos
76773f301f rt2x00: rt2800lib: use a MCU command for frequency adjustment on USB devices
According to the Ralink driver, there is an MCU
command which can be used to send the frequency
offset value directly to the USB device without
going through the RFCSR writing sequence.

Based on the DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.

Reference:
  RTMPAdjustFrequencyOffset function in common/rt_rf.c

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:27 -04:00
Gabor Juhos
6af1bdccab rt2x00: rt2800lib: optimize frequency offset adjustment
Don't write the new value into the register if it is
the same as the old value to avoid unncessary USB bus
traffic with USB devices. The change also saves a few
cycle on MMIO based devices.

Based on the DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.

Reference:
  RTMPAdjustFrequencyOffset function in common/rt_rf.c

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:27 -04:00
Gabor Juhos
c1fada4e5e rt2x00: rt2800lib: fix frequency offset boundary calculation
The current code in the 'rt2800_adjust_freq_offset'
function limits the device specific frequency offset
value to FREQ_BOUND but ignores the fact that the
uppermost bit is not part of the frequency offset
value. As the result, the driver always uses the
FREQ_BOUND value if the uppermost bit is set.

Update the code to use the correct source value
for calculating the boundary.

Based on the DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.

Reference:
  RTMPAdjustFrequencyOffset function in common/rt_rf.c

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:26 -04:00
Gabor Juhos
77f7c0f3b8 rt2x00: rt2800lib: pass beacon index to rt2800_clear_beacon_register
Instead of precomputing the beacon base in
each caller, pass the beacon index to the
'rt2800_clear_beacon_register' function
and compute the beacon base in there.

This allows to simplify the caller functions
a bit.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:26 -04:00
Gabor Juhos
91a3fa39dd rt2x00: rt2800: rename HW_BEACON_OFFSET macro
The name of the HW_BEACON_OFFSET macro is a
bit confusing. It returns with one of the
HW_BEACON_BASE* values, so rename the macro
to HW_BEACON_BASE to reflect that.

The patch contains no functional changes.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:30:25 -04:00
Sujith Manoharan
19c361608c ath9k: Enable PLL fix only for AR9340/AR9330
The PLL hang workaround is required only for AR9330 and
AR9340. This issue was first observed on an AP121 and the WAR
is enabled for AR9340 also (DB120 etc.), since it uses a PLL
design identical to AR9330. This is not required for AR9485 and AR9550.

Various bugs have been reported regarding this:

https://bugzilla.redhat.com/show_bug.cgi?id=997217
https://bugzilla.redhat.com/show_bug.cgi?id=994648

Cc: stable@vger.kernel.org
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:21:04 -04:00
Helmut Schaa
d2e9fc141e ath9k_htc: Restore skb headroom when returning skb to mac80211
ath9k_htc adds padding between the 802.11 header and the payload during
TX by moving the header. When handing the frame back to mac80211 for TX
status handling the header is not moved back into its original position.
This can result in a too small skb headroom when entering ath9k_htc
again (due to a soft retransmission for example) causing an
skb_under_panic oops.

Fix this by moving the 802.11 header back into its original position
before returning the frame to mac80211 as other drivers like rt2x00
or ath5k do.

Reported-by: Marc Kleine-Budde <mkl@blackshift.org>
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Tested-by: Marc Kleine-Budde <mkl@blackshift.org>
Signed-off-by: Marc Kleine-Budde <mkl@blackshift.org>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 14:21:03 -04:00
Stanislaw Gruszka
b2fcc0aee5 iwl4965: fix rfkill set state regression
My current 3.11 fix:

commit 788f7a56fc
Author: Stanislaw Gruszka <sgruszka@redhat.com>
Date:   Thu Aug 1 12:07:55 2013 +0200

    iwl4965: reset firmware after rfkill off

broke rfkill notification to user-space . I missed that bug, because
I compiled without CONFIG_RFKILL, sorry about that.

Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-22 11:40:08 -04:00
John W. Linville
89b5f74a26 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 2013-08-22 11:35:22 -04:00
Felix Fietkau
2dfca312a9 mac80211: add a flag to indicate CCK support for HT clients
brcm80211 cannot handle sending frames with CCK rates as part of an
A-MPDU session. Other drivers may have issues too. Set the flag in all
drivers that have been tested with CCK rates.

This fixes a reported brcmsmac regression introduced in
commit ef47a5e4f1
"mac80211/minstrel_ht: fix cck rate sampling"

Cc: stable@vger.kernel.org # 3.10
Reported-by: Tom Gundersen <teg@jklm.no>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-21 15:03:25 +02:00
Masanari Iida
0b1587b18b treewide: Fix typo in printk
Correct spelling typo in printk

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-08-20 12:44:03 +02:00
John W. Linville
24de851b79 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next 2013-08-16 14:48:40 -04:00
John W. Linville
d074666366 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2013-08-16 14:24:51 -04:00
Gabor Juhos
41caa760d6 rt2x00: rt2800pci: fix AUX_CTRL register setup for RT3090/3390/3593/5592
The 2011_1007_RT5390_RT5392_Linux_STA_V2.5.0.3_DPO
driver enables PCIe wakeup for these chips as well.
Do the same in rt2x00.

References:
  rt28xx_init in common/rtmp_init_intf.c
  RTMPInitPCIeLinkCtrlValue in os/linux/rt_rbus_pci_drv.c

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-16 14:17:51 -04:00
Gabor Juhos
ae1b1c5dcd rt2x00: rt2800lib: introduce rt2800_get_txwi_rxwi_size helper
The rt2800pci driver uses the same [RT]XWI size
for all chipsets, however some chips requires
different values.

The size of the [RT]XWI structures is a constant
value for a given chipset and it does not depend
on the underlying interface. Add a helper function
which returns the correct values for the actual
chipset and use the new helper both in the rt2800usb
and in the rt2800pci drivers. This ensures that both
drivers are using the correct values.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-16 14:17:50 -04:00
Simon Wunderlich
d074e8d547 ath9k: enable CSA functionality in ath9k
CSA is only enabled for one interface, but the same limitation applies
for mac80211 too. It checks whether the beacon has been sent (different
approaches for non-EDMA-enabled and EDMA-enabled devices), and completes
the channel switch after that.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-16 14:17:50 -04:00
Simon Wunderlich
4d70f2fbe1 ath5k: enable support for 5 MHz and 10 MHz channels
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-16 14:17:50 -04:00
Simon Wunderlich
6a09ae95ed ath5k: set 5/10 MHz supported channels and fix duration
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-16 14:17:49 -04:00
Simon Wunderlich
312a64435b ath5k: report 5/10 MHz channels
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-16 14:17:49 -04:00
Simon Wunderlich
6fac8bbcd5 ath9k: announce that ath9k supports 5/10 MHz
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-16 14:17:48 -04:00
Simon Wunderlich
67a5533015 ath9k: set 5/10 MHz supported channels and fix bitrate
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-16 14:17:48 -04:00
Simon Wunderlich
f819c0e729 ath9k: report 5/10 MHz channels
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-16 14:17:48 -04:00
Simon Wunderlich
0671894f97 ath9k: use chandef instead of channel_type
To enable support for 5/10 MHz, some internal functions must be
converted from using the (old) channel_type to chandef. This is a good
chance to change all remaining occurences.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-16 14:17:47 -04:00
Simon Wunderlich
92367fe7f2 ath9k: always use SIFS times from OFDM for 5/10 MHz
5/10 MHz channels should always use SIFS times as defined in IEEE
802.11-2012 18.4.4 (OFDM PHY characteristics). This makes it compatible
to ath5k, which does the same.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-16 14:17:47 -04:00
Alexander Bondar
8971634480 iwlwifi: mvm: Add PBW snoozing enablement
The Performance Based Window snooze mechanism is based on uAPSD and is
used in low-medium traffic scenarios, in order to provide better power
performance while insuring low latency and jitter for the incoming traffic.
This patch enables PBW snoozing in case uAPSD is enabled and all ACs are
uAPSD trigger and delivery enabled.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-16 12:13:28 +02:00
Andrei Otcheretianski
a20fd39866 iwlwifi: mvm: Implement CQM offloading
Use beacon statistics notification to track RSSI.
Notify mac80211 when the tresholds are crossed.
The roaming treshold is configured to be
equal to cqm_thold. If the beacon filtering command
is not supported by fw fall back and use mac80211
mechanism.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-16 12:12:24 +02:00
Luciano Coelho
eafe25e0af iwlwifi: return -ENOMEM instead of NULL when OOM in iwl_drv_start()
The callers of iwl_drv_start() are probe functions.  If a probe
function returns 0, it means it succeeded.  So if NULL was returned by
iwl_drv_start(), it would be considered as a success.

Fix this by returning -ENOMEM if the driver struct allocation fails in
iwl_drv_start().

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-16 12:12:03 +02:00
Luciano Coelho
3b1995ad83 iwlwifi: Kconfig: fix help texts wrt 7260 and 3160 devices
Fix the help texts to properly reflect the 7260 and 3160 devices
support.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-16 12:11:47 +02:00
Luciano Coelho
66140adc22 iwlwifi: use a macro for default probe length
Instead of assigning the default max probe length to 200 in the main
code, create a macro for consistency and clarity.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-16 12:11:36 +02:00
Johannes Berg
7abc4632bf iwlwifi: mvm: refactor resume from WoWLAN code
To be able to add more logic to the resume code, refactor it a bit,
moving some status checking/reporting logic into a new function.
The locking becomes a bit odd (one of the new functions now unlocks
the mutex) but this will be required to call new mac80211 APIs in
there later.

Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-16 12:11:20 +02:00
Eyal Shapira
3571ac3370 iwlwifi: mvm: remove unused param of rs_dbgfs_set_mcs
clean it up

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-16 12:10:36 +02:00
John W. Linville
67d0cf50bd brcmsmac: Fix WARNING caused by lack of calls to dma_mapping_error()
The driver fails to check the results of DMA mapping in twp places,
which results in the following warning:

[   28.078515] ------------[ cut here ]------------
[   28.078529] WARNING: at lib/dma-debug.c:937 check_unmap+0x47e/0x930()
[   28.078533] bcma-pci-bridge 0000:0e:00.0: DMA-API: device driver failed to check map error[device address=0x00000000b5d60d6c] [size=1876 bytes] [mapped as
 single]
[   28.078536] Modules linked in: bnep bluetooth vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) ipv6 b43 brcmsmac rtl8192cu rtl8192c_common rtlwifi mac802
11 brcmutil cfg80211 snd_hda_codec_conexant rng_core snd_hda_intel kvm_amd snd_hda_codec ssb kvm mmc_core snd_pcm snd_seq snd_timer snd_seq_device snd k8temp
 cordic joydev serio_raw hwmon sr_mod sg pcmcia pcmcia_core soundcore cdrom i2c_nforce2 i2c_core forcedeth bcma snd_page_alloc autofs4 ext4 jbd2 mbcache crc1
6 scsi_dh_alua scsi_dh_hp_sw scsi_dh_rdac scsi_dh_emc scsi_dh ata_generic pata_amd
[   28.078602] CPU: 1 PID: 2570 Comm: NetworkManager Tainted: G           O 3.10.0-rc7-wl+ #42
[   28.078605] Hardware name: Hewlett-Packard HP Pavilion dv2700 Notebook PC/30D6, BIOS F.27 11/27/2008
[   28.078607]  0000000000000009 ffff8800bbb03ad8 ffffffff8144f898 ffff8800bbb03b18
[   28.078612]  ffffffff8103e1eb 0000000000000002 ffff8800b719f480 ffff8800b7b9c010
[   28.078617]  ffffffff824204c0 ffffffff81754d57 0000000000000754 ffff8800bbb03b78
[   28.078622] Call Trace:
[   28.078624]  <IRQ>  [<ffffffff8144f898>] dump_stack+0x19/0x1b
[   28.078634]  [<ffffffff8103e1eb>] warn_slowpath_common+0x6b/0xa0
[   28.078638]  [<ffffffff8103e2c1>] warn_slowpath_fmt+0x41/0x50
[   28.078650]  [<ffffffff8122d7ae>] check_unmap+0x47e/0x930
[   28.078655]  [<ffffffff8122de4c>] debug_dma_unmap_page+0x5c/0x70
[   28.078679]  [<ffffffffa04a808c>] dma64_getnextrxp+0x10c/0x190 [brcmsmac]
[   28.078691]  [<ffffffffa04a9042>] dma_rx+0x62/0x240 [brcmsmac]
[   28.078707]  [<ffffffffa0479101>] brcms_c_dpc+0x211/0x9d0 [brcmsmac]
[   28.078717]  [<ffffffffa046d927>] ? brcms_dpc+0x27/0xf0 [brcmsmac]
[   28.078731]  [<ffffffffa046d947>] brcms_dpc+0x47/0xf0 [brcmsmac]
[   28.078736]  [<ffffffff81047dcc>] tasklet_action+0x6c/0xf0
--snip--
[   28.078974]  [<ffffffff813891bd>] SyS_sendmsg+0xd/0x20
[   28.078979]  [<ffffffff81455c24>] tracesys+0xdd/0xe2
[   28.078982] ---[ end trace 6164d1a08148e9c8 ]---
[   28.078984] Mapped at:
[   28.078985]  [<ffffffff8122c8fd>] debug_dma_map_page+0x9d/0x150
[   28.078989]  [<ffffffffa04a9322>] dma_rxfill+0x102/0x3d0 [brcmsmac]
[   28.079001]  [<ffffffffa047a13d>] brcms_c_init+0x87d/0x1100 [brcmsmac]
[   28.079010]  [<ffffffffa046d851>] brcms_init+0x21/0x30 [brcmsmac]
[   28.079018]  [<ffffffffa04786e0>] brcms_c_up+0x150/0x430 [brcmsmac]

As the patch adds a new failure mechanism to dma_rxfill(). When I changed the
comment at the start of the routine to add that information, I also polished
the wording.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Cc: Brett Rudley <brudley@broadcom.com>
Cc: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Cc: Hante Meuleman <meuleman@broadcom.com>
Cc: brcm80211-dev-list@broadcom.com
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:09 -04:00
Mark Schulte
e5b417e73e rtlwifi: sparse warnings: cast to restricted type
Adding type casts to suppress sparse warnings:
 * warning: cast to restricted __le32/__le16

Signed-off-by: Mark Schulte <schultetwin@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:08 -04:00
Sujith Manoharan
5d07cca212 ath9k: Use lockless variant to initialize RX fifo
Since the rx_fifo queue is accessed only using the various
lockless SKB queue routines, there is no need to initialize
the lock and __skb_queue_head_init() can be used.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:08 -04:00
Sujith Manoharan
c3124df796 ath9k: Optimize LNA check
The documentation for antenna diversity says:

"The decision of diversity is done at 802.11 preamble. So, for
11G/11B, for every MAC packet hardware will do a decision. But in
11N with aggregation, the decision is made only at the preamble and
all other MPDUs will use the same LNA as the first MPDU."

Make use of rs_firstaggr to avoid needlessly scanning for LNA
changes.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:07 -04:00
Sujith Manoharan
009af8fb69 ath9k: Identify first subframe in an A-MPDU
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:07 -04:00
Sujith Manoharan
e3acd13d21 ath9k: Handle invalid RSSI
The combined RSSI can be invalid which is indicated by
the value -128. Use RX_FLAG_NO_SIGNAL_VAL for such cases.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:06 -04:00
Sujith Manoharan
ea3ef101d7 ath9k: Remove unused function argument
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:06 -04:00
Sujith Manoharan
7c5c73cde0 ath9k: Fix error condition for corrupt descriptors
In case a descriptor has the "done" bit clear and the
next descriptor has it set, we drop both of them. If
the packet that is received after these two packets
is dropped for some reason, "discard_next" will not cleared.
Fix this.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:05 -04:00
Sujith Manoharan
b09255957b ath9k: Handle corrupt descriptors properly
The MIC/PHYERR/CRC error bits are valid only for
the last desc. for chained packets. Check this early
in the preprocess() routine and bail out.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:05 -04:00
Sujith Manoharan
eb5f952c31 ath9k: Move the RX poll check to preprocess()
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:05 -04:00
Sujith Manoharan
6f38482eb0 ath9k: Fix RX beacon processing
Make sure that chained descriptors are handled correctly
before the packet is parsed to determine if it is a beacon.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:04 -04:00
Sujith Manoharan
a5525d9c82 ath9k: Fix RX packet counter
Handle chained descriptors and increment the RX counter
only for valid packets. Since this is used only by MCI,
use CONFIG_ATH9K_BTCOEX_SUPPORT.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:04 -04:00
Sujith Manoharan
5e85a32aca ath9k: Fix RX debug statistics
The various error bits that ath_debug_stat_rx()
checks are valid only for the last descriptor for
a chained packet, handle this correctly.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:03 -04:00
Sujith Manoharan
6b87d71c1a ath9k: Fix PHY error processing
Parse the PHY error details only for the last fragment
in case descriptors are chained.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:03 -04:00
Sujith Manoharan
3105b67276 ath9k: Reorder some functions
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:02 -04:00
Sujith Manoharan
e0dd1a960b ath9k: Fix TSF processing
There is no need to calculate the mactime for chained
descriptor packets, so make sure that this is done
only for the last fragment of valid packets.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:02 -04:00
Sujith Manoharan
4a47064741 ath9k: Fix RX crypto processing
The keymiss events are valid only in the last descriptor
of a packet. Fix this by making sure that we return
early in case of chained descriptors.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:02 -04:00
Sujith Manoharan
5871d2d787 ath9k: Discard invalid frames early
Frames with invalid or zero length can be discarded
early, there is no need to check the crypto bits.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:01 -04:00
Sujith Manoharan
0cab329d60 ath9k: Fix phy error handling for DFS
Since the DFS code appears to process the phy errors
ATH9K_PHYERR_RADAR and ATH9K_PHYERR_FALSE_RADAR_EXT,
check for the correct phyerr status in the main RX
tasklet routine.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:01 -04:00
Sujith Manoharan
f6307dda7f ath9k: Use a subroutine to check for "mybeacon"
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:00 -04:00
Oleksij Rempel
2b721118b7 ath9k_htc: do not use bulk on EP3 and EP4
If usb auto suspend is enabled or system run in to suspend/resume
cycle, ath9k-htc adapter will stop to response. It is reproducible on xhci HCs.

Host part of problem:
XHCI do timing calculation based on Transfer Type and bInterval,
immediately after device was detected. Ath9k-htc try to overwrite
this parameters on module probe and some changes in FW,
since we do not initiate usb reset from the driver this changes
are not took to account. So, before any kind of suspend or reset,
host controller will operate with old parameters. Only after suspend/resume
and if interface id stay unchanged, new parameters will by applied. Host
will send bulk data with no intervals (?), which will cause
overflow on FIFO of EP4.

Firmware part of problem:
By default, ath9k-htc adapters configured with EP3 and EP4
as interrupt endpoints. Current firmware will try to overwrite
ConfigDescriptor to make EP3 and EP4 bulk. FIFO for this endpoints
stay not reconfigured, so under the hood it is still Int EP.

This patch is revert of 4a0e8ecca4 commit which trying to
reduce CPU usage on some systems. Since it will produce more bug
as fixes, we will need to find other way to fix it.

here is comment from kernel source which has some more explanation:
* Some buggy high speed devices have bulk endpoints using
* maxpacket sizes other than 512.  High speed HCDs may not
* be able to handle that particular bug, so let's warn...

in our case EP3 and EP4 have maxpacket sizes = 64!!!

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:08:00 -04:00
Vladimir Kondratiev
4a68ab100f wil6210: let IP stack re-check HW TCP/UDP csum errors
Fix for TCP iperf from Windows to Linux stall after about 1sec

Hardware reports false errors in some situations:

Microsoft IP stack, in violation of RFC 1624, set TCP checksum that should be 0x0
as 0xffff. hardware report Rx csum error. If HW csum absolutely trusted,
this frame can be never received, as re-transmitted one will have same csum problem.
In addition, it mess up block ack reorder buffer, as if packet dropped, it is not score boarded
there.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:59 -04:00
Felix Fietkau
563299d82f ath9k: reset buffer stale flag in ath_tx_get_tid_subframe
If that flag stays set for a buffer that already ran through the tx path
once, it might cause issues in tx completion processing. Better clear it
early to ensure that this does not happen

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:59 -04:00
Felix Fietkau
8f536b8795 ath9k: simplify ath_tid_drain
ath_tid_drain is only called when a station entry is being removed, so
there is no point in still tracking BAW state. Remove some unnecessary
code and a bogus TODO comment related to this.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:59 -04:00
Felix Fietkau
a1c781bb20 ath9k: avoid accessing MRC registers on single-chain devices
They are not implemented, and accessing them might trigger errors

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:58 -04:00
Felix Fietkau
ca6d4a74c4 ath9k: simplify debugfs chainmask handling
Writing to that file is unnecessary and quirky, the antenna API should
be used instead. Use debugfs_create_u8 to allow reading the values.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:58 -04:00
Felix Fietkau
f5bde5b852 ath9k: remove ath9k_sta_remove_debugfs
mac80211 uses debugfs_remove_recursive, so there's no need for the
driver to do an explicit cleanup of its sta debugfs entry.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:57 -04:00
Felix Fietkau
50676b8111 ath9k: shrink a few data structures by reordering fields
Also reduce the size of a few fields where possible

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:57 -04:00
Felix Fietkau
e96542e55a ath9k: fix rx descriptor related race condition
Similar to a race condition that exists in the tx path, the hardware
might re-read the 'next' pointer of a descriptor of the last completed
frame. This only affects non-EDMA (pre-AR93xx) devices.

To deal with this race, defer clearing and re-linking a completed rx
descriptor until the next one has been processed.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:56 -04:00
Franky Lin
706478cba5 brcmfmac: use configurable sdio bus header length for tx packet
Host tx glomming require an extended hardware sdio bus header to store
information for dongle. Introduce a variable in struct brcmf_sdio to replace
macro SDPCM_HDRLEN

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:56 -04:00
Franky Lin
6bc52319c2 brcmfmac: streamline sdio bus header code
Streamlining sdio bus specific header related code as preparation for host
tx glomming

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:55 -04:00
Franky Lin
cb7f79682a brcmfmac: remove align from brcmf_bus structure
remove align from brcmf_bus since it is only used by sdio bus layer internally

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:55 -04:00
Franky Lin
b05e92545d brcmfmac: abstract tx packet processing functions
Abstract brcmf_sdio_txpkt_prep and brcmf_sdio_txpkt_postp as a preparation
of chained tx packets for host side tx glomming.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:55 -04:00
Arend van Spriel
89c2f382ff brcmfmac: add support for manual TDLS operations
Implement the .tdls_oper() callback and indicate TDLS support
in the wiphy flags.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:54 -04:00
Arend van Spriel
2ee8382fc6 brcmfmac: ignore IF event if firmware indicates it
Not every IF event from the firmware needs to result in a
related interface, netdev or wdev, on the host. This is
indicated in the event message. Handle that flag and effectively
ignore the firmware event.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:54 -04:00
Hante Meuleman
3f4f910fdc brcmfmac: no fws locking outside fws module.
FWS uses locking to protect its data while being called from
various entries. On bus_txdata the lock was kept resulting in
unnecessary long locking, but also creating possibility for
deadlock. This update changes the locking to release lock when
bus_txdata is called.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:53 -04:00
Hante Meuleman
0a4254be94 brcmfmac: always use worker thread for tx data.
When fw signalling is disabled tx is sent immediately. Using
queues and worker thread allows usb to do synchronous autopm. This
patch makes fws use queues and worker thread even if signalling is
not supported by FW or not enabled.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:53 -04:00
Arend van Spriel
87edd8916e brcmfmac: add AMPDU reordering functionality
This feature moves the responsibility of collecting all MPDUs in an
AMPDU session in the correct order from the firmware to the host
driver. This reduces buffer requirement on the firmware side.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:52 -04:00
Arend van Spriel
04779fddef brcmfmac: .txdata() bus callback should not call brcmf_txcomplete()
With firmware-signalling the packet handed to the bus specific driver
layer should not be discarded with brcmf_txcomplete() in the failure
path. Instead only an error is returned and the caller decides what
to do with the packet.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:52 -04:00
Arend van Spriel
4061f89508 brcmfmac: use irq safe spinlock in brcmf_sdbrcm_txdata()
Firmware-signalling needs transmit to firmware to be atomic and
uses a spinlock with irq disabled. Therefor, brcmf_sdbrcm_txdata()
should not use spin_unlock_bh() as it would enable the interrupts.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-15 16:07:51 -04:00
John W. Linville
946951e141 Merge branch 'for-linville' of git://github.com/kvalo/ath 2013-08-15 15:54:06 -04:00
Michal Kazior
961d4c3896 ath10k: add support for HTT 3.0
New firmware comes with new HTT protocol version.
In 3.0 the separate mgmt tx command has been
removed. All traffic is to be pushed through data
tx (tx_frm) command with a twist - FW seems to not
be able (yet?) to access tx fragment table so for
manamgement frames frame pointer is passed
directly.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-15 16:04:41 +03:00
Michal Kazior
0d9b0438b6 ath10k: add support for firmware newer than 636
The mgmt_rx event structure has been expanded.
Since the structure header is expanded the payload
(i.e. mgmt frame) is shifted by a few bytes. This
needs to be taken into account in order to support
both old and new firmware.

This introduces a fw_features to keep track of any
FW-related ABI/behaviour changes.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-15 16:04:41 +03:00
Marek Puzyniak
68c8a9b22e ath10k: fix WEP in AP and IBSS mode
WEP encoding was not working properly for AP and IBSS mode.
TX frames were encrypted with default WEP tx key index set
always to zero, what sometimes was wrong when different
key index should be used. This patch allows to update
WEP key index also for AP and IBSS mode.
Problem detected during automated WEP tests.

Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14 18:05:50 +03:00
Michal Kazior
7f8a62db4b ath10k: plug possible memory leak in WMI
There was a possible memory leak when WMI command
queue reached it's limit. Command buffers were not
freed.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14 18:01:28 +03:00
Michal Kazior
dfa95b5024 ath10k: implement 802.3 SNAP rx decap type A-MSDU handling
This enables driver to rx another decapped a-msdu
frames. It should possibly help with throughputs
in some cases and reduce (or eliminate) number of
messages like this:

  ath10k: error processing msdus -524

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14 18:01:28 +03:00
Michal Kazior
0e1cbf9a6f ath10k: fix HTT service setup
The "disable credit flow" flag was set too late
and it never was in the HTC service request
message.

This patch prevents firmware from reporting
(useless) HTC credits for HTT service. HTT service
doesn't use nor need credits.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14 18:01:28 +03:00
Michal Kazior
ba7ee55f8c ath10k: print errcode when CE ring setup fails
This makes it possible to see the reason why the
setup fails. It also adheres to code style of
error checking in ath drivers.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14 18:00:01 +03:00
Michal Kazior
f9d8fece02 ath10k: clean up PCI completion states
Improve code readability by using enum and a
switch-case.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14 18:00:00 +03:00
Michal Kazior
ffe5daa873 ath10k: use sizeof(*var) in kmalloc
This fixes checkpatch warning from the latest
3.11-rc kernel tree.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14 18:00:00 +03:00
Michal Kazior
7a53f3f38a ath10k: clean up monitor start code
Remove useless code that was causing WARN_ON when
a 80MHz+ vif entered promiscuous mode or monitor
interface was started.

The channel mode is already computed by
chan_to_phymode().

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14 18:00:00 +03:00
Janusz Dziedzic
9c5ae6915d ath10k: check allocation errors in CE
Handle pci_alloc_consistent(), kmalloc()
errors in copy engine module.
Found during code review.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-13 17:39:01 +03:00
Bing Zhao
d1e2586f48 mwifiex: fix build error when CONFIG_PM is not set
config: make ARCH=m68k allmodconfig

All error/warnings:

   drivers/net/wireless/mwifiex/cfg80211.c: In function
       'mwifiex_fill_coalesce_rule_info':
>> drivers/net/wireless/mwifiex/cfg80211.c:2493:3: error: implicit
       declaration of function 'mwifiex_is_pattern_supported'
       [-Werror=implicit-function-declaration]
   drivers/net/wireless/mwifiex/cfg80211.c: At top level:
   drivers/net/wireless/mwifiex/cfg80211.c:2537:12: warning:
       'mwifiex_cfg80211_set_coalesce' defined but not used
       [-Wunused-function]
   cc1: some warnings being treated as errors

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-12 14:36:55 -04:00
Bartosz Markowski
4e72b232a4 ath10k: update supported FW build version
The latest supported and available FW build is 1.0.0.636.
Reflect this in ath10k code.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-12 17:21:39 +03:00
Bartosz Markowski
57a8930aec ath10k: Remove qca98xx hw1.0 support
Since the firmware support is no longer available for hw1.0,
drop all code (especially workarounds) for those units.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-12 17:21:38 +03:00
Janusz Dziedzic
c69029b179 ath10k: setup peer UAPSD flag correctly
Setup UAPSD peer/peer rate flags correctly.
WMI_RC_UAPSD_FLAG is a peer rate capabilities flag
and should not be set as a peer flag.
Found during code review, doesn't fix a known
issues.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-12 17:16:38 +03:00
Eyal Shapira
d972ab31b9 iwlwifi: mvm: remove MIMO3 from rate scale code
Current and future chips supported by mvm will only have a maximum
of 2 antennas so all the MIMO3 related code and states can be dropped.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-12 15:23:54 +02:00
Alexander Bondar
e3c588ec0d iwlwifi: mvm: Add basic uAPSD client support
Implement basic uAPSD client support adding the following:

- Advertise uAPSD support in HW capabilities
- Set all ACs trigger- and delivery-enabled
- Set max SP length to 2 buffered frames
- Assign QNDP with the highest TID with no mandatory admission
  control required
- Set uAPSD related parameters in Power Table command

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-12 15:23:05 +02:00
Eliad Peller
faec6f91f5 iwlwifi: mvm: don't clear tbl->win mistakenly
rs_get_tbl_info_from_mcs() mistakenly clears
the rate histories window, overriding its initialization
values (i.e. filling it with 0, instead of -1).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-12 15:21:43 +02:00
Eyal Shapira
ab055ce9f5 iwlwifi: mvm: remove unused fields of iwl_rs_rate_info
Some more cleanups of unused fields and their initializations.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-12 15:21:32 +02:00
Dan Carpenter
2ab9ba0fdf iwlwifi: pcie: returning positive instead of negative
There is a missing '-' character here so we return positive 'ENOMEM'
instead of negative.  The caller doesn't care.  All non-zero returns
are translated to '-ENOMEM' in iwl_pcie_nic_init().

This is just a cleanup.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-12 15:21:20 +02:00
Eyal Shapira
ab3077009f iwlwifi: mvm: remove rate_scale_data debugfs entry
This isn't very informative and can be deduced from rate_scale_table.
Remove as a preparation for dropping iwl_rs_rate_info.ieee.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-12 15:21:09 +02:00
Luciano Coelho
6965a3540a iwlwifi: pcie: don't swallow error codes in iwl_trans_pcie_alloc()
The iwl_trans_pcie_alloc() function doesn't pass up error codes
returned from functions it calls, swallowing them and returning NULL
in all failure cases.  The caller checks if the return value is NULL
and returns -ENOMEM.  This is not correct, because in certain cases
the failure was not due to an OOM situation.

To fix this, modify the iwl_trans_pcie_alloc() function to use
ERR_PTR() to return error codes and clean up the error handling code
a bit.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-12 15:20:29 +02:00
Eytan Lifshitz
f8f03c3edc iwlwifi: mvm: add support to the new FW time event API
The time event firmware API will change, add the support for that.
Use the new API throughout and convert to the old where needed.

Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com>
Reviewed-by: Guy Cohen <guy.cohen@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-12 15:19:06 +02:00
David Spinadel
52981cd794 mac80211: add vif to testmode cmd
Pass the wdev from cfg80211 on to the driver as the vif
if given and it's valid for the driver.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-12 14:11:42 +02:00
David Spinadel
fc73f11f5f cfg80211: add wdev to testmode cmd
To allow drivers to implement per-interface testmode operations
more easily, pass a wdev pointer if any identification for one
was given from userspace. Clean up the code a bit while at it.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-12 14:11:37 +02:00
Johannes Berg
af61a16518 mac80211: add control port protocol TX control flag
A lot of drivers check the frame protocol for ETH_P_PAE,
for various reasons (like making those more reliable).
Add a new flags bitmap to the TX control info and a new
flag indicating the control port protocol is in use to
let all drivers also apply such logic to other control
port protocols, should they be configured.

Also use the new flag in the iwlwifi drivers.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-12 14:09:29 +02:00
Sujith Manoharan
16fe28e9b4 ath9k: Run the LNA combining algorithm properly
The LNA combining algorithm has to be run for cards
that support the required diversity features, make
sure that that correct conditions are met before
enabing this algorithm.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:28 -04:00
Sujith Manoharan
7d845871ff ath9k: Fix BTCOEX usage for RX diversity
BTCOEX has to be *disabled* for WLAN RX diversity to
work on combo cards.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:26 -04:00
Felix Fietkau
f89d1bc427 ath9k: use software queueing for multicast traffic
Create a per-vif dummy node entry for keeping the multicast software
queues. This helps in setups with a lot of mulitcast traffic that could
otherwise potentially drown out unicast traffic to stations.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:24 -04:00
Felix Fietkau
020f20f693 ath9k: improve tx scheduling fairness
Instead of trying to schedule the same TID multiple times in a loop,
iterate over other TIDs/stations first.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:22 -04:00
Felix Fietkau
2800e82bcc ath9k: use software queues for un-aggregated data packets
This is a first step for improving fairness between legacy and 802.11n
traffic, and it should also improve reliability of resets and channel
changes by keeping the hardware queue depth very short.

When an aggregation session is torn down, all packets in the retry queue
will be removed from the BAW and freed.

For all subframes that have not been transmitted yet, the A-MPDU flag
will be cleared, and a sequence number allocated. This ensures that the
next A-MPDU session will get the correct initial sequence number.
This happens both on aggregation session start and stop.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:20 -04:00
Felix Fietkau
026d5b07c0 ath9k: always clear ps filter bit on new assoc
Otherwise in some cases, EAPOL frames might be filtered during the
initial handshake, causing delays and assoc failures.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:18 -04:00
Felix Fietkau
897d7fd9b5 ath9k: fix clearing expired A-MPDU subframes in tx completion
When the tid aggregation state has been marked as inactive, free
completed tx packets immediately. When a new aggregation session has not
been initialized yet, the BAW checks do not recognize it as expired.

Might fix potential stalls in setting up a new aggregation session.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:15 -04:00
Felix Fietkau
73364b0c47 ath9k: prepare queueing code for handling unaggregated traffic
- Allow ath_tx_get_tid_subframe to return non-AMPDU subframes.
- Reset the tid paused state on aggregation stop
- Initialize software queues even when HT is not supported

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:13 -04:00
Felix Fietkau
8fed140855 ath9k: fix block ack window tracking check
When a packet has been tracked as part of the BlockAck window and added
to the hardware queue, it can end up back in the TID queue again with
fi->retries still set to 0 (e.g. if the frame was filtered). Keep an
extra bit for the BAW tracking status to fix this corner case.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:11 -04:00
Felix Fietkau
a1cd94d345 ath9k: simplify ath_tx_form_aggr
The check for ATH_AMPDU_SUBFRAME_DEFAULT is unnecessary, since it's set
to half the maximum BlockAck Window size, which is already the maximum
value that h_baw could possibly have. Also remove unnecessary variables.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:09 -04:00
Felix Fietkau
18fcf1c6a6 ath9k: add CAB queue info to debugfs
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:07 -04:00
Felix Fietkau
1803d02d7a ath9k: add function for getting the tx tid for a packet
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:04 -04:00
Felix Fietkau
bb195ff61f ath9k: split tid retry packets into a separate queue
Improves packet retry order and helps with further tx queueing
improvements.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:02 -04:00
Felix Fietkau
a7586ee441 ath9k: add utility functions for accessing tid queues
Useful for further fixes / cleanups

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:58:00 -04:00
Johannes Berg
e33354764d brcmfmac: use CFG80211_TESTMODE_CMD
This is essentially the same, but written shorter.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:57:58 -04:00
Jingoo Han
6cdfc1de17 net: wireless: rt2x00: Staticize rt2x00queue_pause_queue_nocheck()
rt2x00queue_pause_queue_nocheck()is used only in this file.
Fix the following sparse warning:

drivers/net/wireless/rt2x00/rt2x00queue.c:939:6: warning: symbol 'rt2x00queue_pause_queue_nocheck' was not declared. Should it be
static?

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:57:55 -04:00
Sujith Manoharan
36e8825e65 ath9k: Fix build failure
Make sure that CONFIG_ATH9K_BTCOEX_SUPPORT is used for
the WLAN/BT RX diversity hooks.

Reported by the kernel build testing backend.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 15:57:53 -04:00
Amitkumar Karwar
562fc5b30f mwifiex: add packet coalesce support
Coalesce filters are configured in firmware based on settings
received from cfg80211.

Packet type which is required by firmware is determined based on
provided patterns in a rule:

Unicast: if pattern '01' with offset 0 is found
Multicast: if pattern '33:33' or '01:00:5e' with offset 0 is found
Broadcast: if pattern 'ff:ff:ff:ff' with offset 0 is found

Some example coalesce configuration files:

1) Coalesce Rx data packets from 192.168.0.88
mac address of our device is 00:50:43:21:53:7A
Source IP address offset comes out as 52 after following
calculations:
    32 bytes of HW 802.11 header + 8 bytes LLC +
    12 bytes in IPV4 header till source IP address
Destination mac is at offset 6 in HW header.

delay=100
condition=1
patterns=01,6+00:50:43:22,10+53:7A,52+c0:a8:00:58

2) Coalesce all broadcast and multicast packets(Multiple packet
types are not allowed in a single rule. Hence created separate
rules)

delay=400
condition=1
patterns=33:33
delay=400
condition=1
patterns=ff:ff:ff:ff

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>
2013-08-09 15:57:51 -04:00
Amitkumar Karwar
afd84de473 mwifiex: increase max supported pattern offset
The offset number is increased to accomodate requests from
user to match more fields in a Rx packet.

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>
2013-08-09 15:57:48 -04:00
Amitkumar Karwar
0434c46499 mwifiex: modify mwifiex_is_pattern_supported() routine
It is modified so that it can be reused for coalesce feature.

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>
2013-08-09 15:57:46 -04:00
Amitkumar Karwar
3f4e854a2d mwifiex: rename mef macros
Their names were generic. We need to define similar macros
for coalesce feature. Hence they are renamed here.

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>
2013-08-09 15:57:44 -04:00
John W. Linville
2437f3c5d6 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next 2013-08-09 15:07:23 -04:00
John W. Linville
4f05444892 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2013-08-09 15:06:28 -04:00
Dan Carpenter
909bd5926d Hostap: copying wrong data prism2_ioctl_giwaplist()
We want the data stored in "addr" and "qual", but the extra ampersands
mean we are copying stack data instead.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 14:01:21 -04:00
Jussi Kivilinna
1206ff4ff9 zd1201: do not use stack as URB transfer_buffer
Patch fixes zd1201 not to use stack as URB transfer_buffer. URB buffers need
to be DMA-able, which stack is not.

Patch is only compile tested.

Cc: stable@vger.kernel.org
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-09 14:01:05 -04:00
John W. Linville
4fec06a364 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes 2013-08-09 13:49:10 -04:00
Ido Yariv
6e8773c314 iwlwifi: pcie: Remove duplicate code from pcie irq handlers
Instead of having the same code sequentially, fall-through.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-09 14:38:29 +02:00
Ido Yariv
351746c9ad iwlwifi: pcie: Refactor iwl_rxq_space
Simplify iwl_rxq_space to improve readability and reduce
the ambiguity spares to a single element.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-09 14:38:15 +02:00
Ido Yariv
a9b2924643 iwlwifi: pcie: Refactor iwl_queue_space
Reduce the ambiguity spares to a single element if the window size is not
smaller than the queue size. If smaller, no spares are required at all.

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-09 14:38:01 +02:00
Matti Gottlieb
f4f3c65984 iwlwifi: introduce external debug level
This debug level will be used in the future for logging
interaction with external modules.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-09 14:37:33 +02:00
Alexander Bondar
495191c79f iwlwifi: mvm: Fix beacon filtering enablement via debugfs
The code was only enabling it when already enabled, which
obviously can't work.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-09 14:37:10 +02:00
Mohammed Shafi Shajakhan
9d0e2f0772 ath6kl: Fix invalid pointer access on fuzz testing with AP mode
In our Fuz testing, reference client corrupts the dest mac to "00:00:00:00:00:00"
in the WPA2 handshake no 2. During driver init the sta_list entries mac
addresses are by default "00:00:00:00:00:00". Driver returns an invalid
pointer (conn) and the drver shall crash, if rxtids (aggr_conn)
skb queues are accessed, since they would not be initialized.

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-07 10:58:59 +03:00
Vasanthakumar Thiagarajan
f32036e823 ath6kl: Fix race in heart beat polling
Make sure to cancel heart beat timer before
freeing wmi to avoid potential NULL pointer
dereference.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-07 10:53:36 +03:00
Bartosz Markowski
8cc8df906f ath10k: add SoC power save option to PCI features map
Unify the PCI options location.

By default the SoC PS option is disabled to boost the
performance and due to poor stability on early HW revisions.
In future we can remove the module parameter and turn on/off
the PS for given hardware.

This change also makes the pci module parameter for SoC PS static.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-07 10:03:29 +03:00
Johannes Berg
e7f1935c11 wireless: make TU conversion macros available
A few places in the code (mac80211 and iwlmvm) use the same
TU_TO_JIFFIES() macro and could use TU_TO_EXP_TIME() that
mac80211 has. Make these available to everyone and use them.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-06 11:00:59 +02:00
Johannes Berg
057397943e iwlwifi: mvm: disconnect if time event scheduling fails
If scheduling an important time event fails, or if we get
an unexpected notification from the firmware, there isn't
much we can do to recover, so just drop the connection and
let higher layers retry it.

Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-06 10:35:19 +02:00
Eliad Peller
ef4394b947 iwlwifi: mvm: use designated initialization for some arrays
rs_ht_to_legacy and ant_toggle_lookup are arrays that
represent some state-machine. initialize them explicitly
with designated initialization to make them more clear
and avoid errors.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-06 10:35:04 +02:00
Eliad Peller
bd3351ba3e iwlwifi: mvm: add some missing cleanups in iwl_mvm_mac_add_interface
iwl_mvm_mac_add_interface() didn't clean up beacon filtering
configuration and ctxt allocation in some error cases.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-06 10:34:52 +02:00
Johannes Berg
5fdda0476c iwlwifi: remove transport suspend/resume indirection
There's no reason for the transport to call itself through
indirect function pointers, inline the (little) code there
is and remove the indirection completely.

Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-06 10:34:33 +02:00
Eliad Peller
1092b9bc0c iwlwifi: pcie: some little cleanups
do some little cleanups in tx.c - eliminate duplicate checks,
use locally cached fields and predefined macros.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-06 10:34:11 +02:00
Eliad Peller
e89044d75e iwlwifi: fix some documentation typos
Fix some typos.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-06 10:33:58 +02:00
Johannes Berg
f5e45f2d96 iwlwifi: mvm: small cleanups in quota management code
Use a C99 initializer to clear the command and move the lockdep
assertion before the restart check. Since this causes problems
with the BUILD_BUG_ON() with some compilers, change that a bit.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-06 10:33:47 +02:00
Avri Altman
17dbe56445 iwlwifi: mvm: fix signal reporting for < 3 antennas
When fewer than three antennas are connected (as is
always the case for the current devices), the signal
strength reporting was wrong; fix it.

Signed-off-by: Avri Altman <avri.altman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-06 10:32:38 +02:00
Eyal Shapira
977342bc3d iwlwifi: mvm: remove traffic load monitoring in rs
The traffic load monitoring isn't used anymore to decide whether
a Tx aggregation on a specific TID should be started.
No point in collecting these statistics. Remove the relevant code.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-06 10:32:17 +02:00
Johannes Berg
eeb89ab1f0 iwlwifi: pcie: fix resume when no opmode is present
If no opmode is present during suspend/resume (i.e. if
the iwldvm or iwlmvm isn't loaded) the driver crashes
during resume, trying to call the rfkill notification.
Avoid that, and also don't enable the rfkill interrupt
in this case (to avoid crashing trying to handle the
interrupt later.)

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-06 10:31:05 +02:00
Matti Gottlieb
3848ab6682 iwlwifi: mvm: Add RX statistics debugfs entry
Add a debugfs entry for the RX statistics received from
the firmware.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-06 10:30:21 +02:00
Guy Cohen
4f0c848a33 Revert "iwlwifi: pcie: clear RFKILL interrupt in AMPG"
This reverts commit a53ee0a308.

This fix causes a worse HW Error when entering RF-Kill.

Signed-off-by: Guy Cohen <guy.cohen@intel.com>
Signed-off-by: Dor Shaish <dor.shaish@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-06 10:28:54 +02:00
Sujith Manoharan
2952f6ef51 ath9k: Add more PCI IDs for WB225 cards
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05 14:52:46 -04:00
Sujith Manoharan
b21e3e14ae ath9k: Fix antenna control init for AR9485
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05 14:52:46 -04:00
Sujith Manoharan
047dc3ac88 ath9k: Remove ath_ant_comb_update()
During a HW reset, the diversity config is programmed
in the set_board_values() eeprom callback, there is no
need to do it again by calling ath_ant_comb_update().

Fixed antenna support is not fully handled for 1-stream
cards, it can be done later.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05 14:52:45 -04:00
Alexey Khoroshilov
0cbe8c87fe hostap: do not return positive number on failure path in prism2_open()
prism2_open() as an .ndo_open handler should not return positive numbers
in case of failure, but it does return 1 in a couple of places.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05 14:52:45 -04:00
Sujith Manoharan
84893817aa ath9k: Support ANT diversity for WB225
WB225 based cards like CUS198 and CUS230 support
both fast antenna diversity and LNA combining. Add support
for this and also program the SWCOM register with the
correct "ant_ctrl_comm2g_switch_enable" value.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05 14:52:45 -04:00
Sujith Manoharan
31fd216db9 ath9k: Set SWCOM value for CUS198
CUS198/CUS230 cards require a custom value to be
programmed into the SWCOM register. Assign this during
init time.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05 14:52:44 -04:00
Sujith Manoharan
7bdea96a1b ath9k: Remove "shared_chain_lnadiv"
This variable is redundant since we can use
common->bt_ant_diversity to determine if diversity
has to be enabled/disabled.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05 14:52:44 -04:00
Sujith Manoharan
d715090824 ath9k: Program HW for WB195 diversity
The MC_GAIN_CTL/CCK_DETECT registers have to be programmed
with the correct configuration values if WLAN/BT RX diversity
is enabled. Add this and also take care of the BTCOEX mode
when fast diversity is enabled/disabled.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05 14:52:43 -04:00
Sujith Manoharan
a5354ccaaf ath9k: Enable WLAN/BT Ant Diversity for WB225/WB195
A custom solution for Asus is WB195 based and supports
WLAN/BT Rx diversity. Identify this card and set the
capability.

CUS198/CUS230, which are based on WB225 also support
WLAN/BT Rx diversity.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05 14:52:43 -04:00
Sujith Manoharan
d8d7744b72 ath9k: Rename ath9k_hw_antctrl_shared_chain_lnadiv
Use "ath9k_hw_set_bt_ant_diversity" instead.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05 14:52:42 -04:00
Sujith Manoharan
3f2da95517 ath9k: Add a HW capability for WLAN/BT RX diversity
Make use of this capability to restrict the usage of the
debugfs file and modparam using which this feature can
be enabled.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05 14:52:42 -04:00
Sujith Manoharan
6308130542 ath9k: Cleanup WLAN/BT RX diversity
For single-chain WLAN+BT cards, the BT antenna can be used for
WLAN RX when the BT interface is disabled. Rename the modparam
"antenna_diversity" to "bt_ant_diversity" to clarify this.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05 14:52:42 -04:00
Sujith Manoharan
3afa6b4f54 ath9k: Fix antenna diversity for CUS198
CUS198/CUS230 need a few tweaks in the antenna diversity
algorithm to accomodate RSSI variation. Add a couple
of knobs to control low RSSI threshold and fast antenna
diversity bias values.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05 14:52:41 -04:00