Commit Graph

20144 Commits

Author SHA1 Message Date
Oleksij Rempel 3cad711dbc ath9k_htc: fix build with disabled debug
CC [M]  drivers/net/wireless/ath/ath9k/htc_drv_txrx.o
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c: In function ‘ath9k_rx_prepare’:
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:1006:2: warning: passing argument 2 of ‘ath9k_htc_err_stat_rx’ from incompatible pointer type [enabled by default]
  ath9k_htc_err_stat_rx(priv, &rx_stats);
  ^
In file included from drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:17:0:
drivers/net/wireless/ath/ath9k/htc.h:380:20: note: expected ‘struct ath_htc_rx_status *’ but argument is of type ‘struct ath_rx_status *’
 static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-20 10:34:28 -04:00
Rafał Miłecki 773cfc508f b43: add more devices to the bands database
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-20 10:34:28 -04:00
Rafał Miłecki 075ca604fc b43: move bands detection to a separated function
This cleans code a bit and allows adding support for more devices.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-20 10:34:27 -04:00
Julia Lawall 20e6f7f043 brcmsmac: make return of 0 explicit
Delete unnecessary local variable whose value is always 0 and that hides
the fact that the result is always 0.

A simplified version of the semantic patch that fixes this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
local idexpression ret;
expression e;
position p;
@@

-ret = 0;
... when != ret = e
return
- ret
+ 0
  ;
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
[arend@broadcom.com: make brcms_b_detach() a void function]
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-19 16:42:15 -04:00
Rajkumar Manoharan 08232bf949 ath9k_hw: Abort transmission for sleeping station
The data transmission to the power save station should be aborted
immediately, whenever the station informs sleep state. Right now
the frames queued into into hardware are being transmitted until
the hardware detects the power save station based excessive retries
of the data frames due to unacknowlegdement. Then remaining frames
are returned with filetered status and might be retried later by
driver or mac80211.

Per WFA certification testing, AP should not send out more than two
frames after processing nullfunc with PM bit set from associated
station. To speed up tx filtering, the pending frames in hardware
queues for given station will be aborted immediately via tx filter
registers. This transmit filters can be ignored if the descriptor
is having invalid destination index or clear destination mask set.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-19 16:42:15 -04:00
Rafał Miłecki 1db10595c6 b43: make B43_PCMCIA and B43_SDIO depend on B43_SSB
These are extra configs specific to the SSB. Lack of this dependency and
CONFIG_B43=y
CONFIG_B43_BUSES_BCMA=y
CONFIG_SSB=m
would result in:
> drivers/built-in.o: In function `b43_sdio_remove':
> sdio.c:(.text+0x14657f): undefined reference to `ssb_bus_unregister'
> drivers/built-in.o: In function `b43_sdio_probe':
> sdio.c:(.text+0x14672f): undefined reference to `ssb_bus_sdiobus_register'

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-19 16:42:15 -04:00
Rafał Miłecki 7a8af8cf99 b43: rework band switching
We always operate on one core and simple band switch doesn't require
full core reset. Simply reset the PHY.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-19 16:42:15 -04:00
Rafał Miłecki 50c1b59e2f b43: complete PHY reset
Use separated function for taking PHY out of reset and implement reset
for BCMA.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-19 16:42:14 -04:00
Rafał Miłecki b60c3c2fdf b43: move PHY reset code into PHY specific file
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-19 16:42:14 -04:00
Rafał Miłecki 0f68423f63 b43: split upload of init values into 2 functions
There are two groups of init values. The first one has to be uploaded
once per wireless core reset but the second one on every band switch.
To implement band switching in an optimal way allow uploading band
init values only (by using a separated function).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-19 16:42:14 -04:00
Peter Wu 83dc363806 rtlwifi: remove unused allow_all_destaddr functions
Unused as configure_filter takes care of setting/clearing RCR_AAP.

In commit "rtlwifi: rtl8723be: rtl8723com: Remove unused
allow_all_destaddr functions", Larry Finger removed allow_all_destaddr
from the struct. This commit removes the related function too.

Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-19 16:42:14 -04:00
Johannes Berg 922bd80fc3 cfg80211: constify wowlan/coalesce mask/pattern pointers
This requires changing the nl80211 parsing code a bit to use
intermediate pointers for the allocation, but clarifies the
API towards the drivers.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-19 18:06:50 +02:00
Johannes Berg c1e5f4714d cfg80211: constify more pointers in the cfg80211 API
This also propagates through the drivers.

The orinoco driver uses the cfg80211 API structs for internal
bookkeeping, and so needs a (void *) cast that removes the
const - but that's OK because it allocates those pointers.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-19 17:53:16 +02:00
Johannes Berg 3b3a0162fa cfg80211: constify MAC addresses in cfg80211 ops
This propagates through all the drivers and mac80211.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-05-19 17:34:42 +02:00
Luciano Coelho 5344669989 iwlwifi: mvm: set the MAC_FILTER_IN_BEACON flag also for P2P
There doesn't seem to be a good reason for not enabling the
MAC_FILTER_IN_BEACON flag for P2P client, as we do for station.

This can prevent potential, hard-to-reproduce problems during
association.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-19 16:39:23 +03:00
Luciano Coelho cad3f08c23 iwlwifi: mvm: enable MAC_FILTER_IN_BEACON when forced_assoc_off is set
Set the MAC_FILTER_IN_BEACON flag in iwl_mvm_mac_ctxt_cmd_sata() also
when forced_assoc_off is set, so it's aligned with when we are not
associated.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-19 16:39:03 +03:00
Emmanuel Grumbach 5c90422439 iwlwifi: mvm: don't allow diversity if BT Coex / TT forbid it
We should not allow diversity when BT Coex needs the second
antenna. Thermal Throttling can also request to stop using
the second antenna. Honour those requests.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-19 16:38:21 +03:00
Avri Altman 894981ed43 iwlwifi: mvm: Remove redundant initialization
This value is being set few lines under in set_cqm_params.

Signed-off-by: Avri Altman <avri.altman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-19 16:38:09 +03:00
Luciano Coelho 3b00772267 iwlwifi: mvm: update power after phy_ctxt is NULL when unassigning chanctx
iwl_mvm_power_update_mac() (more specifically
iwl_mvm_power_iterator()) relies on the phy_ctxt setting to decide
whether the vif is active or not.  When unassigning a chanctx, we
should therefore call iwl_mvm_power_update_mac() after setting
phy_chanctx to NULL.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-19 16:37:30 +03:00
Joe Perches f8b8a47e06 wlcore: Remove trailing semicolon from do {...} while (0) macro
These should not have trailing semicolons so remove them.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-16 14:26:53 -04:00
Avinash Patil 8d767dcbea mwifiex: set valid tx_param during mwifiex_send_null_packet
While sending null packet from driver we are passing NULL
tx_param pointer to indicate there are no more packets in queue.
PCIe send routine assumes caller has done sanity check on
tx_param and may cause crash while dereferencing next_pkt_len
from tx_param.

Avoid this by passing tx_param structure with next_pkt_len as
zero instead of NULL pointer.

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>
2014-05-16 14:26:53 -04:00
Avinash Patil bb71d01a42 mwifiex: restore current SDIO write port in failure cases
During SDIO MP aggregation, we at first acquire current write
port to write data onto and then proceed with using this port
for SDIO write. If error occurs later in mwifiex_write_data_sync
because device is suspended or SDIO write failure, we do not
restore current write port and write bitmap. This results into
leaking one port and hole in SDIO write port bitmap.
Restore current write port and reset bitmap accordingly in
failure cases to avoid this.

Reported-by: James Cameron <quozl@laptop.org>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Reviewed-by: James Cameron <quozl@laptop.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-16 14:26:53 -04:00
Janusz Dziedzic 89ce4f65f4 ath: add JP DFS pattern detector
Add initial values for JP DFS pattern detector.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-16 14:26:53 -04:00
Janusz Dziedzic f12e3e038f ath: add DFS FCC pattern detector
Add initial values for DFS FCC pattern detector.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Tested-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-16 14:26:53 -04:00
George Spelvin e757201b8d drivers/net/wireless/ti/wl*/spi.c: Simplify CRC computation
These devices require commands stored in buffers in an odd order,
different from that in which the CRC is computed.

Rather than make two copies of the commands in two different orders,
form the commands in logical (CRC) order, append the CRC, then byte-swap
in place to the desired order.

The old code worked fine, I'm just scratching an "ugh, that's ugly"
itch.

Signed-off-by: George Spelvin <linux@horizon.com>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-16 14:26:53 -04:00
George Spelvin 1836eea209 lib/crc7: Shift crc7() output left 1 bit
This eliminates a 1-bit left shift in every single caller,
and makes the inner loop of the CRC computation more efficient.

Renamed crc7 to crc7_be (big-endian) since the interface changed.

Also purged #include <linux/crc7.h> from files that don't use it at all.

Signed-off-by: George Spelvin <linux@horizon.com>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-16 14:26:52 -04:00
John W. Linville d91a48cbae Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next 2014-05-16 14:16:17 -04:00
John W. Linville 75e58071c0 Merge branch 'for-linville' of git://github.com/kvalo/ath 2014-05-16 14:15:28 -04:00
Marek Kwaczynski eeab266c0f ath10k: fix pmf for action frames
Fix sending and receiveing protected managment frames.
Lack of protected flag for received protected action frames
causes report these frames as unprotected robust action frames.
If the driver in AP mode sent frame with protected flag and
CCMP header using IEEE80211_KEY_FLAG_SW_MGMT_TX flag,
the FW encrypted frames once again. From user side all
received SA Query Requests and Responses were skipped and
all protected action frames were sent as malformed packets.

Signed-off-by: Marek Kwaczynski <marek.kwaczynski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-16 16:53:07 +03:00
Bartosz Markowski a6a2f74e56 ath10k: get rid of pci_assign_resource() call from pci_probe
On ARM-based (MSM mach), the pci_assign_resource() is passing
some invalid pointers and leading to L2 cache errors,
what prevents the PCI communication completly.

So far I have not found this funtion to be directly called by
any other wifi driver and did not found this assigning needed
on any other platform. So removing it completely.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-16 16:50:26 +03:00
Michal Kazior 1a4ab28fc0 ath10k: enable early device dumps
This can be useful for early initialization
debugging, i.e. ROM crashes.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-16 16:49:36 +03:00
Michal Kazior 61c95cea66 ath10k: retry warm reset a few times
Sometimes warm reset works upon retry. It might be
related to imperfect warm reset routine, but for
now let's just do the retries.

This should improve the reliability of some chips
that hang/crash with cold reset which is used as a
last resort if warm reset fails.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-16 16:48:37 +03:00
Michal Kazior de01357b36 ath10k: improve warm reset reliability
Warm reset is now able to recover after device
crashes which required a cold reset before.

This should greatly reduce chances of getting data
bus errors or host system freezes due to buggy
cold reset on some chips.

kvalo: use ath10k_pci_soc_*()

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-16 16:48:01 +03:00
Ben Greear d0e0a5524c ath10k: fix spelling mistake in comments
Simple typo fix.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-16 16:46:03 +03:00
Johannes Berg af7c603eb4 iwlwifi: fix LED support Kconfig dependencies
If DVM or MVM are built-in but LEDS_CLASS isn't then the current
Kconfig will enable LED support and fail the build. Fix this by
making the LED support depend on LEDS_CLASS being built-in or,
if it is modular, only enabling it if iwlwifi also is.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-15 19:56:18 +03:00
Liad Kaufman 4c9706dc2f iwlwifi: update nmi register
In the 8000 HW family the register for forcing an NMI has
changed, so this allows to still be able to force an NMI
while taking into account the HW in order to write to the
correct register.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-15 19:50:51 +03:00
Luciano Coelho cf52023ccd iwlwifi: mvm: combine p2p and station mac context functions
Instead of having two nearly identical functions to send the mac
context commands, use a single way that can handle both the p2p and
!p2p cases.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-15 19:50:27 +03:00
Emmanuel Grumbach 4d66449a27 iwlwifi: mvm: BT Coex - send channel inhibition before association
The firmware needs to know on what channel we run before we
set the association bit in the MAC context. Change a bit the
flow to achieve this.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-15 19:49:26 +03:00
Matt Chen 1504f48df4 iwlwifi: mvm: add uapsd_disable module parameter
Some APs (e.g. TP-LINK TL-WA801N) are disabling aggregation (downlink
to station) when U-APSD is enabled, resulting in low throughput.
Add a module parameter to allow disabling U-APSD support in the driver.

Also re-enable U-APSD for -9 firmware since the firmare issues were
fixed in this release.

There are devices that won't support U-APSD even with newer
firmware, so bring the TLV flag back to detect those.

Signed-off-by: Matt Chen <matt.chen@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-15 10:09:32 +03:00
Rajkumar Manoharan faf1dc64e3 ath9k_htc: Stop ANI before doing hw_reset
During remain on channel request, ANI worker thread is not stopped
before doing hw reset. This is causing kernel crash in
hw_per_calibration. This change ensures that ANI is stopped before
doing chip reset and it will be rescheduled later when the chip is
configured back to home channel and having valid bss.

Reported-by: David Herrmann <dh.herrmann@gmail.com>
Tested-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-14 15:42:46 -04:00
Michal Kazior ede9c8e091 ath10k: fix handling of wierd MSDU chaining cases
Apparently firmware can sometimes report a
sequence with the first rx descriptor saying it's
not the last MSDU. In that case msdu_chaining
value could be overwritten saying it's not a
chained MSDU. This in turn led to skb_push panic
as the frame could be treated as an A-MSDU instead
of a chained MSDU.

Reported-By: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-14 16:41:16 +03:00
Michal Kazior 3e841fd0a5 ath10k: fix htt rx ring clean up
msdu_payId was read before txrx tasklet was killed
so it was possible to end up using an invalid
sk_buff pointer leading to a panic.

Make sure to sanitize rx ring sk_buff pointers and
make the clean up go through all possible entries
and not rely on coherent-DMA mapped u32 index
which could be (in theory) corrupted by the device
as well.

Reported-By: Avery Pennarun <apenwarr@gmail.com>
Reported-By: Ben Greear <greearb@candelatech.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-14 16:40:47 +03:00
Kalle Valo e21353576d Merge remote-tracking branch 'wireless-next/master' into ath-next 2014-05-14 16:20:08 +03:00
Eran Harary 91479b64c9 iwlwifi: allow dynamic configuration of internal memory
New transport need to configure internal memory based on
the data in the (enlarged) alive notification from the
firmware. Add a transport API for this.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-14 11:35:49 +03:00
Wilfried Klaebe 7ad24ea4bf net: get rid of SET_ETHTOOL_OPS
net: get rid of SET_ETHTOOL_OPS

Dave Miller mentioned he'd like to see SET_ETHTOOL_OPS gone.
This does that.

Mostly done via coccinelle script:
@@
struct ethtool_ops *ops;
struct net_device *dev;
@@
-       SET_ETHTOOL_OPS(dev, ops);
+       dev->ethtool_ops = ops;

Compile tested only, but I'd seriously wonder if this broke anything.

Suggested-by: Dave Miller <davem@davemloft.net>
Signed-off-by: Wilfried Klaebe <w-lkml@lebenslange-mailadresse.de>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-13 17:43:20 -04:00
Jahnavi Meher 5f407acbb7 rsi: Changed the return value to enable BA set-up
Signed-off-by: Jahnavi Meher <jahnavi.meher@redpinesignals.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:53 -04:00
Arend van Spriel 600a897d81 brcmfmac: determine chanspec from struct cfg80211_chan_def info
The struct cfg80211_chan_def contains additional info to derive the
bandwidth and side-band information of the chanspec. This patch adds
chandef_to_chanspec() function used in IBSS join and starting AP
operation.

Reviewed-by: Franky Lin <frankyl@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>
2014-05-13 15:56:52 -04:00
Arend van Spriel ee942ecc42 brcmfmac: handle 80MHz chanspecs in construct_reg_info() function
The device is queried about the usability of channels, but it did not
take 80MHz channels into consideration. This patch adds processing those
chanspecs and clear the NO_80MHZ flag for those control/primary channels.

Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com>
Reviewed-by: Franky Lin <frankyl@broadcom.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>
2014-05-13 15:56:52 -04:00
Arend van Spriel 06c01585ee brcmfmac: get rid of brcmf_cfg80211_set_channel() function
The function does not provide any additional functionality and is
used only once so just get rid of it.

Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com>
Reviewed-by: Franky Lin <frankyl@broadcom.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>
2014-05-13 15:56:51 -04:00
Arend van Spriel c555ecde6c brcmfmac: enable 80Mhz in 5G custom regulatory rules
By default allow 80Mhz in custom regulatory rules of the 5G band so
the channels will not be flagged with N0_80MHZ.

Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com>
Reviewed-by: Franky Lin <frankyl@broadcom.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>
2014-05-13 15:56:50 -04:00
Arend van Spriel 18d6c535ce brcmfmac: provide VHT capability information to user-space
Although brcmfmac support several 11ac devices it did not advertise
VHT related information to cfg80211.

Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com>
Reviewed-by: Franky Lin <frankyl@broadcom.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>
2014-05-13 15:56:50 -04:00
Arend van Spriel 4439cbcd37 brcm80211: extend channel conversion functions for 80MHz support
The channel values used by firmware is handled using conversion functions
depending on the type of chip. These functions were already in place but
lacked proper support for 80MHz channel definitions. This patch adds the
support for that.

Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com>
Reviewed-by: Franky Lin <frankyl@broadcom.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>
2014-05-13 15:56:49 -04:00
Arend van Spriel a9a56878a7 brcmfmac: remove usage of cfg80211_get_chandef_type()
In the .start_ap callback cfg80211_get_chandef_type() was used to
provide debug log info. However, this causes a warning when the
chandef contains VHT channel with 80MHz bandwidth. Avoid the warning
by just printing the channel and bandwidth instead.

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>
2014-05-13 15:56:48 -04:00
Daniel Kim b8d2e87839 brcmfmac: Fix reconnect failure after beacon timeout
The DISASSOC command needs to be sent to firmware when a connection
loss is detected by firmware (e.g., beacon timeout). Otherwise the
next connect request fails due to a lingering LINK(down) event from
firmware. This patch resolves the issue by using brcmf_link_down()
handler, instead of the incomplete duplicated codes.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Daniel Kim <dekim@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:48 -04:00
Arend van Spriel 3e99b08ab5 brcmfmac: enhance nvram processing
The driver serializes the nvram firmware file before sending it
to the device. This patch enhances this to assure serialized data
is properly formatted and provide warnings on syntax failures.

Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com>
Reviewed-by: Franky Lin <frankyl@broadcom.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>
2014-05-13 15:56:47 -04:00
Hante Meuleman 9cd18359d3 brcmfmac: Make FWS queueing configurable.
FWS is always queuing frames and using a worker for de-queueing,
this is not always efficient for all bus layer. For example SDIO
has an internal queue and worker making the queueing of FWS
unnecessary. Make it possible to bypass the worker if fws mode
is none using a bus interface configuration. For USB bus layer
this configuration is set true to have fws provide queueing
regardless the fws mode.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Daniel (Deognyoun) Kim <dekim@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>
2014-05-13 15:56:46 -04:00
Hante Meuleman 55929443c8 brcmfmac: Move handling 802.1x frames to dhd_linux.
Tracking and handling of 802.1x frames is done in two modules, it
is more logical and clear to move this to dhd_linux module.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Daniel (Deognyoun) Kim <dekim@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>
2014-05-13 15:56:45 -04:00
Hante Meuleman 53e30ea420 brcmfmac: Move out hdrpull from tx_finalize.
In tx_finalize the hdrpull is performed. For the new protocol
msgbuf this is complex, because it does not use protocol headers
in front of payload anymore and therefor can not determine interface
index in the hdr pulll operation. Move out the hdrpull operation
from tx_finalize to make msgbuf implementation easier.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Daniel (Deognyoun) Kim <dekim@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>
2014-05-13 15:56:45 -04:00
Daniel Kim 604bf237cb brcmfmac: Report the support of firmware roaming
Currently firmware roaming support is not reported to cfg80211.
This patch reports the support of firmware based roaming when
it is enabled.

Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Daniel Kim <dekim@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:44 -04:00
Daniel Kim e09cc63dc3 brcmfmac: Give priority to 5GHz band in selecting target BSS
When a BSS provides both 2.4GHz and 5GHz bands, in many cases it
makes sense to choose 5GHz. Typically a 5GHz channel is less crowded
and has less interference and therefore its performance will be
better than a crowded 2.4 GHz channel. This patch configures
'join_pref' to induce firmware to preferably select 5GHz BSS.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Daniel Kim <dekim@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:43 -04:00
Oleksij Rempel 3eb6ed2357 ath9k_htc: use ath9k_cmn_debug_phy_err
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:43 -04:00
Oleksij Rempel e02912cdd6 ath9k: move phy_err to ath9k_cmn_debug_phy_err
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:42 -04:00
Oleksij Rempel f14c17cc5c ath9k_htc: use ath9k_cmn_debug_recv
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:41 -04:00
Oleksij Rempel 87ea9b0b3c ath9k: move recv to ath9k_cmn_debug_recv
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:41 -04:00
Oleksij Rempel b5a0c86a56 ath9k & ath9k_htc: move ath_rx_stats to cmn
and use it. This move need changes in both drivers.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:40 -04:00
Oleksij Rempel 9d83cd5cd2 ath9k: reorder or remove some includes
to fix compile errors

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:39 -04:00
Oleksij Rempel df73820961 ath9k_htc: use ath9k_cmn_debug_base_eeprom
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:39 -04:00
Oleksij Rempel 29bf801e04 ath9k: move base_eeprom debug code to ath9k_cmn_debug_base_eeprom
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:38 -04:00
Oleksij Rempel 7e9bed7125 ath9k_htc: use ath9k_cmn_debug_modal_eeprom
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:37 -04:00
Oleksij Rempel f2c3c952a5 ath9k-common: create common-debug and move modal_eeprom to cmn
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:36 -04:00
Rafał Miłecki fbe057d8a1 b43: drop SSB dependency
This adds choice submenu "Supported bus types" as two simple bool
configs would allow user to compile b43 without any bus support
(prety useless).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:36 -04:00
Rafał Miłecki bd7c8a5937 b43: adjust code to compile without SSB
Users of new (BCMA based) wireless chipsets may not want to enable SSB.
This is hopefully the last code patch for dropping SSB dependency.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:35 -04:00
Ondrej Zary fe5d96246e orinoco_usb: Fix broken firmware load error checking
The check of ezusb_firmware_download() return value (added by commit
488ec87803) is broken because
ezusb_firmware_download() returns 1 on success.
This causes the driver not to work with the following error:
orinoco_usb: probe of 3-3:1.0 failed with error -14

Check the return value only for negative values.

This fix should be applied to -stable kernels too.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:35 -04:00
Zefir Kurtisi e515e9cb64 ath9k: non-functional: calculate DFS pulse interval per-wiphy
Systems with multiple DFS channel detectors need to track
timestamp of previous pulse per instance to display the
correct pulse interval.

Since the interval value is used for debug printing only,
this is a non-functional modification.

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:34 -04:00
Helmut Schaa 4f15754735 amend "ath9k: Allow platform override without EEPROM override"
Originally Helmut posted a v2 of the "ath9k: Allow platform override
without EEPROM override", but I had prematurely commited the original
as commit 552a515707.  This commit restores the tree to what Helmut
intended with his v2 submission. -- JWL

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:33 -04:00
Adam Lee 3924e338d5 rtlwifi: rtl8723be: add msi module parameter
The msi module parameter offers an option to enable or disable MSI
interrupts mode, for debugging and workaround(in case) convenience.

Signed-off-by: Adam Lee <adam.lee@canonical.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:33 -04:00
Adam Lee 3513d0043c rtlwifi: rtl8188ee: add msi module parameter
The msi module parameter offers an option to enable or disable MSI
interrupts mode. For now, some users report RTL8188EE works only with
MSI on their certain platforms, some others report it works only without
MSI, this parameter will help.

Signed-off-by: Adam Lee <adam.lee@canonical.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:32 -04:00
Adam Lee 73070c45d5 rtlwifi: make MSI support a module parameter
This makes MSI support a module parameter, for debugging and workaround
convenience.

Signed-off-by: Adam Lee <adam.lee@canonical.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:31 -04:00
Grazvydas Ignotas e5b02f649b wl1251: only call ieee80211_beacon_loss in managed mode
ieee80211_beacon_loss() is only to be called in managed mode,
but the firmware may send the sync timeout event at any time,
so do a check before calling.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:27 -04:00
Grazvydas Ignotas 863bdbc918 wl1251: fix mixed up args for join
The join arguments are mixed up, passing beacon_interval instead of
channel and channel instead of beacon_interval. Fix them.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:22 -04:00
Grazvydas Ignotas a5640612cf wl1251: fix null data for IBSS
Fix the WARN below by not calling ieee80211_nullfunc_get() in IBSS mode,
but setting up empty template the same way wl12xx driver does.

WARNING: CPU: 0 PID: 914 at net/mac80211/tx.c:2750 ieee80211_nullfunc_get+0xc0/0xd0 [mac80211]()
Modules linked in: wl1251_sdio wl1251 mac80211 cfg80211
...
[<c00439c0>] (warn_slowpath_null)
[<bf0bdfdc>] (ieee80211_nullfunc_get [mac80211])
[<bf134774>] (wl1251_op_bss_info_changed [wl1251])
[<bf099e14>] (ieee80211_bss_info_change_notify [mac80211])
...

Also perform join command regardless of bss_type as that seems to be
required for proper operation.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:56:16 -04:00
Grazvydas Ignotas d5738b41e5 Revert "wl1251: enforce changed hw encryption support on monitor state change"
This reverts commit b90a1165a7.

That commit (or rather, hack) triggers a scary WARN in IBSS (ad-hoc) mode.
Steps to reproduce:
    ifconfig wlan0 down
    iwconfig wlan0 mode ad-hoc
    ifconfig wlan0 up
------------[ cut here ]------------
WARNING: CPU: 0 PID: 905 at kernel/workqueue.c:1400 __queue_work+0x21c/0x2f4()
Modules linked in: wl1251_sdio wl1251 mac80211 cfg80211
CPU: 0 PID: 905 Comm: ifconfig Not tainted 3.15.0-rc2#233
[<c0015f38>] (unwind_backtrace) from [<c0012938>]
[<c0012938>] (show_stack) from [<c05d4034>]
[<c05d4034>] (dump_stack) from [<c0043984>]
[<c0043984>] (warn_slowpath_common) from [<c00439c0>]
[<c00439c0>] (warn_slowpath_null) from [<c005b6c8>]
[<c005b6c8>] (__queue_work) from [<c005b820>]
[<c005b820>] (queue_work_on) from [<bf134ac0>]
[<bf134ac0>] (wl1251_op_config [wl1251])
[<bf099a70>] (ieee80211_hw_config [mac80211])
...
This happens because ieee80211_connection_loss() is not expected to be
called in IBSS mode (mac80211 ends up queuing uninitialized work
in that case).

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-13 15:55:56 -04:00
John W. Linville 3231d65ffe Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2014-05-13 15:27:44 -04:00
John W. Linville 209f6c3754 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes 2014-05-13 14:52:34 -04:00
Johannes Berg 1a095d30d1 iwlwifi: mvm: enable RX chain diversity if needed
In some situations (see comment) it makes sense to enable both
chains (if available) to get better throughput by having chain
diversity available.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-13 15:06:44 +03:00
David Spinadel b538b8ce76 iwlwifi: mvm: prevent sched scan while not idle
Prevent sched scan while not idle (including during association or in AP
mode) instead of while associated only.

This fixes my previous commit which was incomplete:

commit bd5e4744a6
Author: David Spinadel <david.spinadel@intel.com>
Date:   Thu Apr 24 13:15:29 2014 +0300

    iwlwifi: mvm: do no sched scan while associated

    Currently the FW doesn't support sched scan while associated,
    Prevent it.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-13 15:05:32 +03:00
Eliad Peller 64793110ad iwlwifi: mvm: fix off-by-one in scan channels configuration
tail should be equal to the last valid index, so
decrease it by one.

This error causes in "a gap" in some cases (as well as
some possible out-of-bound write), finally resulting in
ucode assertion.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-13 14:04:55 +03:00
Eran Harary d6aeb354f9 iwlwifi: mvm: revisit the NVM handling code
Fix a bug in nvm_read_section function if size of the section
is a multiple of 2K:

   - if the size of the section is *not* multiple of 2K,
   then we will have: read(2K) - return 2K ... read(2K) - return 2K
   read(2K) - return the rest (in bytes) and exit the while loop.
   - else, if the size of the section is a multiple of 2K,
   then we have: read(2K) - return 2K read(2K) - return 2K read(2K) -
   return 2K read(2K) - return 0 and exit the while with an error.

We should not return an error in the latter case, because it
might well be that the section was completely read.

Also, we try now to read all the sections as this is needed
for new devices.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-13 13:58:15 +03:00
Emmanuel Grumbach 2adc8949ef iwlwifi: mvm: BT Coex - fix boost register / LUT values
These values are used to give preference to WiFi according
to a certain pattern.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-13 13:55:21 +03:00
Eliad Peller 6f36105881 iwlwifi: mvm: set SKIP_OVER_DTIM flag only if needed
setting SKIP_OVER_DTIM when skip_dtim_periods is 0
causes a ucode assert. set the flag only if needed.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-13 13:54:19 +03:00
Emmanuel Grumbach d090f878b0 iwlwifi: pcie: disable BHs in iwl_pcie_txq_check_wrptrs
This fixes:

=================================
[ INFO: inconsistent lock state ]
3.14.3+ #5 Tainted: G           O
---------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
swapper/3/0 [HC0[0]:SC1[3]:HE1:SE0] takes:
 (&(&txq->lock)->rlock){+.?...}, at: [<ffffffffa059803c>] iwl_pcie_enqueue_hcmd+0x12c/0x1000 [iwlwifi]
{SOFTIRQ-ON-W} state was registered at:
  [<ffffffff810d9071>] __lock_acquire+0x5f1/0x13b0
  [<ffffffff810d9ee0>] lock_acquire+0xb0/0x1f0
  [<ffffffff817ef80e>] _raw_spin_lock+0x3e/0x80
  [<ffffffffa0598f7a>] iwl_pcie_txq_check_wrptrs+0x6a/0xb0 [iwlwifi]
  [<ffffffffa0594b5a>] iwl_pcie_irq_handler+0xdba/0x2670 [iwlwifi]
  [<ffffffff810ef1e0>] irq_thread_fn+0x20/0x50
  [<ffffffff810ef77f>] irq_thread+0x11f/0x150
  [<ffffffff810a04f0>] kthread+0xf0/0x110
  [<ffffffff817fa4bc>] ret_from_fork+0x7c/0xb0
irq event stamp: 1142192
hardirqs last  enabled at (1142192): [<ffffffff817efb6c>] _raw_spin_unlock_irq+0x2c/0x40
hardirqs last disabled at (1142191): [<ffffffff817ef9ef>] _raw_spin_lock_irq+0x1f/0x80
softirqs last  enabled at (1142188): [<ffffffff81079082>] _local_bh_enable+0x22/0x50
softirqs last disabled at (1142189): [<ffffffff8107ad35>] irq_exit+0xe5/0xf0

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&(&txq->lock)->rlock);
  <Interrupt>
    lock(&(&txq->lock)->rlock);

Fixes: ea68f46070 ("iwlwifi: pcie: clarify TX queue need_update handling")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-13 13:53:53 +03:00
Liad Kaufman 7f715626a9 iwlwifi: use dev_printk instead of dev_dbg for debug logs
When calling IWL_DEBUG_*() dev_dbg() is currently used, and this
could result in the log being ignored no matter the internal
loglevel, since dev_dbg() may get turned on or off based on the
dynamic debug mechanism.

Replace the dev_dbg() with dev_printk() since dynamic printing
is pointless as we use our own debug level mechanism and there
is just a single dev_dbg() call in the code.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
[rephrase commit message a bit]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-13 13:52:22 +03:00
Emmanuel Grumbach a102292719 iwlwifi: remove CMD_SYNC
CMD_SYNC is really 0 which is confusing:

if (cmd.flags & CMD_SYNC) is always false.
Fix this by simply removing its definition.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-13 13:52:19 +03:00
Emmanuel Grumbach 90c456fc79 Merge remote-tracking branch 'iwlwifi-fixes/master' into HEAD 2014-05-13 13:51:53 +03:00
Seungwon Jeon cdc991790c mmc: drop the speed mode of card's state
Timing mode identifier has same role and can take the place
of speed mode. This change removes all related speed mode.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
2014-05-12 18:05:53 -04:00
Daniel Kim 03e5da151b brcmfmac: Fix iovar 'bw_cap' set command failure
Fix iovar 'bw_cap' set command failure introduced by

  commit ff3b0fba6f25555ef59c55d138a467d0f81d82d7
  Author: Arend van Spriel <arend@broadcom.com>
  Date:   Sat Mar 15 12:00:57 2014 +0100

      brcmfmac: fallback to mimo_bw_cap for older firmwares

This resulted in disabling 20MHz operation in the firmware.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Signed-off-by: Daniel Kim <dekim@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-12 14:15:10 -04:00
David S. Miller 5f013c9bc7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/altera/altera_sgdma.c
	net/netlink/af_netlink.c
	net/sched/cls_api.c
	net/sched/sch_api.c

The netlink conflict dealt with moving to netlink_capable() and
netlink_ns_capable() in the 'net' tree vs. supporting 'tc' operations
in non-init namespaces.  These were simple transformations from
netlink_capable to netlink_ns_capable.

The Altera driver conflict was simply code removal overlapping some
void pointer cast cleanups in net-next.

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-12 13:19:14 -04:00
Johannes Berg 41f6fc10d3 iwlwifi: remove spurious newline in Kconfig
There's an extra newline that shouldn't be there - remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-11 16:50:00 +03:00
Johannes Berg 4b907fd4be iwlwifi: cause build error on missing newline
If a (debug) message is missing a newline, cause build error
so we don't keep reintroducing this problem.

This also prevents using a non-constant argument as the format
string which is a good idea anyway (e.g. for security reasons.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-11 13:12:31 +03:00
Avri Altman 0534528ec3 iwlwifi: mvm: Disable uAPSD for a DCM client
A binding object associates virtual MACs to a Phy.
Binding object can ask (and get) air time, thus
allowing several MACs to share the medium.
A binding object can be in either one of 3 states:
1) standalone - A single active MAC
2) Different Channel Mode (DCM) - There are 2 active
   MACs or more (not necessarily just clients), but each
   has its own channel.
3) Same Channel Mode (SCM) - There are 2 active
   MACs or more (not necessarily just clients), that
   share the same channel.
This patch introduces an additional condition for enabling uAPSD:
uAPSD should be disabled for a client in DCM.
The reason for that is a low latency issue in Miracast.

Signed-off-by: Avri Altman <avri.altman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-11 13:12:04 +03:00
Avri Altman 63ef81cfb6 iwlwifi: mvm: Add power management support for P2P DCM
If two clients are active while each one is alone on its channel,
and the applicable flags are set, power management should be enabled.
This condition is referred to as Different Channel Mode (DCM).
Up to now, in DCM power management was supported only on BSS.
This patch adds support for P2P power management in DCM as well.

Signed-off-by: Avri Altman <avri.altman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-11 13:11:47 +03:00
Emmanuel Grumbach 1c4abec0ba iwlwifi: mvm: fix setting channel in monitor mode
There was a deadlock in monitor mode when we were setting the
channel if the channel was not 1.

======================================================
[ INFO: possible circular locking dependency detected ]
3.14.3 #4 Not tainted
-------------------------------------------------------
iw/3323 is trying to acquire lock:
 (&local->chanctx_mtx){+.+.+.}, at: [<ffffffffa062e2f2>] ieee80211_vif_release_channel+0x42/0xb0 [mac80211]

but task is already holding lock:
 (&local->iflist_mtx){+.+...}, at: [<ffffffffa0609e0a>] ieee80211_set_monitor_channel+0x5a/0x1b0 [mac80211]

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #2 (&local->iflist_mtx){+.+...}:
       [<ffffffff810d95bb>] __lock_acquire+0xb3b/0x13b0
       [<ffffffff810d9ee0>] lock_acquire+0xb0/0x1f0
       [<ffffffff817eb9c8>] mutex_lock_nested+0x78/0x4f0
       [<ffffffffa06225cf>] ieee80211_iterate_active_interfaces+0x2f/0x60 [mac80211]
       [<ffffffffa0518189>] iwl_mvm_recalc_multicast+0x49/0xa0 [iwlmvm]
       [<ffffffffa051822e>] iwl_mvm_configure_filter+0x4e/0x70 [iwlmvm]
       [<ffffffffa05e6d43>] ieee80211_configure_filter+0x153/0x5f0 [mac80211]
       [<ffffffffa05e71f5>] ieee80211_reconfig_filter+0x15/0x20 [mac80211]
       [snip]

-> #1 (&mvm->mutex){+.+.+.}:
       [<ffffffff810d95bb>] __lock_acquire+0xb3b/0x13b0
       [<ffffffff810d9ee0>] lock_acquire+0xb0/0x1f0
       [<ffffffff817eb9c8>] mutex_lock_nested+0x78/0x4f0
       [<ffffffffa0517246>] iwl_mvm_add_chanctx+0x56/0xe0 [iwlmvm]
       [<ffffffffa062ca1e>] ieee80211_new_chanctx+0x13e/0x410 [mac80211]
       [<ffffffffa062d953>] ieee80211_vif_use_channel+0x1c3/0x5a0 [mac80211]
       [<ffffffffa06035ab>] ieee80211_add_virtual_monitor+0x1ab/0x6b0 [mac80211]
       [<ffffffffa06052ea>] ieee80211_do_open+0xe6a/0x15a0 [mac80211]
       [<ffffffffa0605a79>] ieee80211_open+0x59/0x60 [mac80211]
       [snip]

-> #0 (&local->chanctx_mtx){+.+.+.}:
       [<ffffffff810d6cb7>] check_prevs_add+0x977/0x980
       [<ffffffff810d95bb>] __lock_acquire+0xb3b/0x13b0
       [<ffffffff810d9ee0>] lock_acquire+0xb0/0x1f0
       [<ffffffff817eb9c8>] mutex_lock_nested+0x78/0x4f0
       [<ffffffffa062e2f2>] ieee80211_vif_release_channel+0x42/0xb0 [mac80211]
       [<ffffffffa0609ec3>] ieee80211_set_monitor_channel+0x113/0x1b0 [mac80211]
       [<ffffffffa058fb37>] cfg80211_set_monitor_channel+0x77/0x2b0 [cfg80211]
       [<ffffffffa056e0b2>] __nl80211_set_channel+0x122/0x140 [cfg80211]
       [<ffffffffa0581374>] nl80211_set_wiphy+0x284/0xaf0 [cfg80211]
       [snip]

other info that might help us debug this:

Chain exists of:
  &local->chanctx_mtx --> &mvm->mutex --> &local->iflist_mtx

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&local->iflist_mtx);
                               lock(&mvm->mutex);
                               lock(&local->iflist_mtx);
  lock(&local->chanctx_mtx);

 *** DEADLOCK ***

This deadlock actually occurs:
INFO: task iw:3323 blocked for more than 120 seconds.
      Not tainted 3.14.3 #4
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
iw              D ffff8800c8afcd80  4192  3323   3322 0x00000000
 ffff880078fdb7e0 0000000000000046 ffff8800c8afcd80 ffff880078fdbfd8
 00000000001d5540 00000000001d5540 ffff8801141b0000 ffff8800c8afcd80
 ffff880078ff9e38 ffff880078ff9e38 ffff880078ff9e40 0000000000000246
Call Trace:
 [<ffffffff817ea841>] schedule_preempt_disabled+0x31/0x80
 [<ffffffff817ebaed>] mutex_lock_nested+0x19d/0x4f0
 [<ffffffffa06225cf>] ? ieee80211_iterate_active_interfaces+0x2f/0x60 [mac80211]
 [<ffffffffa06225cf>] ? ieee80211_iterate_active_interfaces+0x2f/0x60 [mac80211]
 [<ffffffffa052a680>] ? iwl_mvm_power_mac_update_mode+0xc0/0xc0 [iwlmvm]
 [<ffffffffa06225cf>] ieee80211_iterate_active_interfaces+0x2f/0x60 [mac80211]
 [<ffffffffa0529357>] _iwl_mvm_power_update_binding+0x27/0x80 [iwlmvm]
 [<ffffffffa0516eb1>] iwl_mvm_unassign_vif_chanctx+0x81/0xc0 [iwlmvm]
 [<ffffffffa062d3ff>] __ieee80211_vif_release_channel+0xdf/0x470 [mac80211]
 [<ffffffffa062e2fa>] ieee80211_vif_release_channel+0x4a/0xb0 [mac80211]
 [<ffffffffa0609ec3>] ieee80211_set_monitor_channel+0x113/0x1b0 [mac80211]
 [<ffffffffa058fb37>] cfg80211_set_monitor_channel+0x77/0x2b0 [cfg80211]
 [<ffffffffa056e0b2>] __nl80211_set_channel+0x122/0x140 [cfg80211]
 [<ffffffffa0581374>] nl80211_set_wiphy+0x284/0xaf0 [cfg80211]

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=75541

Cc: <stable@vger.kernel.org> [3.13+]
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-11 13:10:08 +03:00
David Spinadel 723f02ed6c iwlwifi: mvm: stop sched scan before association
Stop sched scan on bss_info_changed if !idle to avoid sched scan
during association.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-11 13:08:50 +03:00
David Spinadel 636a2cdcb9 iwlwifi: mvm: notify sched scan complete from stop routine
Add an option to notify mac80211 about sched scan complete from
iwl_mvm_stop_sched_scan(), to enable this notification when the
stop was called from within the driver.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-11 13:08:17 +03:00
Eran Harary 9b1c9a666c iwlwifi: mvm: add channel 14 to the low band list
in family 8000: additional channel 14 added to the low
band list. now the number of channels in the low band
is 15.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Dor Shaish <dor.shaish@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-11 13:07:33 +03:00
Emmanuel Grumbach 501fd9895c iwlwifi: pcie: try to get ownership several times
Some races with the hardware can happen when we take
ownership of the device. Don't give up after the first try.

Cc: <stable@vger.kernel.org>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-11 13:07:12 +03:00
Eran Harary e02a9d606d iwlwifi: 8000: add default NVM file name in family 8000
The 8000 family products need a file on the file system
which is used as NVM. This file is a must, if no filename
is supplied as module parameter, use a default filename.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Dor Shaish <dor.shaish@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-11 13:06:50 +03:00
Emmanuel Grumbach aeb0cf3cd0 iwlwifi: dvm: don't use _ni mac80211's callbacks
This is not needed since the PCIe layer disables the
bottom halves before it calls the op_mode.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-11 12:58:00 +03:00
Johannes Berg 3c6acb614d iwlwifi: add missing trailing newlines to debug messages
All messages should have a trailing newline, add all the
missing ones. Also make all messages constants, replacing
the single one that pointlessly used a variable.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-11 12:54:58 +03:00
John W. Linville 0d770a82ad Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next 2014-05-08 11:36:40 -04:00
John W. Linville d2e5cb4e22 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes 2014-05-08 11:28:35 -04:00
Andrea Merello d294d0286a rtl8187: make CTS-to-self protection work
CTS protection was not working properly because the HW needs
RTS flag to be asserted, and it need also RTS duration field to be
filled with CTS-to-self duration.

This patch makes the driver to do this.

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-07 16:08:09 -04:00
Andrea Merello 5d0d1e9489 rtl8180: make CTS-to-self protection work
CTS protection was not working properly because the HW still need
RTS flag to be asserted, and it need also RTS rate field to be
set with CTS-to-self rate and RTS duration field to be filled with
CTS-to-self duration.

This patch makes the driver to do this.

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-07 16:08:09 -04:00
Andrea Merello e58342d9c8 rtl8180: report mac80211 short preamble RX flag
This patch make it possible to mac80211 to know whether a frame
has been received with short preamble.

It simply checks for the "splcp" flag in the RX status
descriptor, and eventually set RX_FLAG_SHORTPRE in mac80211
rx status structure.

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-07 16:08:08 -04:00
Andrea Merello 97bd8c79da rtl8187: report mac80211 short preamble RX flag
This patch make it possible to mac80211 to know whether a frame
has been received with short preamble.

It simply checks for the "splcp" flag in the RX status
descriptor, and eventually set RX_FLAG_SHORTPRE in mac80211
rx status structure.

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-07 16:08:08 -04:00
Helmut Schaa 552a515707 ath9k: Allow platform override without EEPROM override
Add a new platform data flag "use_eeprom" that indicates that the eeprom
found on the card itself should be used instead of the one present in
the platform data.

This allows to override the MAC address of a PCI card while preserving
the eeprom data from the card itself.

The default behavior is preserved.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-07 16:08:08 -04:00
Avinash Patil 396939f940 mwifiex: add HT operation IE in TDLS setup confirm
This patch adds support to populate HT operatation IE in TDLS
setup confirm command. This is required for setting wider
bandwidths for TDLS operations.

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>
2014-05-07 16:08:08 -04:00
Avinash Patil 79ff434612 mwifiex: disable TDLS link upon tear down event
This patch adds code to disable TDLS link upon reception of TDLS
teardown event from peer. Teardown event can happen either
because of TDLS teardown packet from peer or internal timeout
configured during TDLS setup. Event is propogated to cfg80211
so that userspace application can take appropriate action.

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>
2014-05-07 16:08:08 -04:00
Avinash Patil d29caf257a mwifiex: configure inactivity timeout for TDLS link
This patch adds configuration timeout for TDLS link. This is
configuered at the time of TDLS link configuration. If TDLS link
is inactive for more than timeout, FW will tear this link.

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>
2014-05-07 16:08:07 -04:00
Emmanuel Grumbach 83f7a85f11 iwlwifi: pcie: disable interrupts upon PCIe alloc
In case RFKILL is in KILL position, the NIC will issue an
interrupt straight away. This interrupt won't be sent
because it is masked in the hardware.
But if our interrupt service routine is called for another
reason (SHARED_IRQ), then we'll look at the interrupt cause
and service it. This can cause bad things if we are not
ready yet.
Explicitly clean the interrupt cause register to make sure
we won't service anything before we are ready to.

Cc: <stable@vger.kernel.org> [3.14]
Reported-and-tested-by: Alexander Monakov <amonakov@gmail.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-07 22:54:32 +03:00
Eyal Shapira 017a64161f iwlwifi: mvm: rs: enable MCS9 for Tx
After fixes to the rs algorithm reenable MCS9.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-07 22:44:43 +03:00
Emmanuel Grumbach 0aa7142812 iwlwifi: mvm: fix sparse warning when _DEBUGFS isn't set
Since the declaration of iwl_mvm_fw_error_rxf_dump and
iwl_mvm_fw_error_sram_dump is under
ifdef CONFIG_IWLWIFI_DEBUGFS, do the same for their
implementation.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 23:37:07 +03:00
Emmanuel Grumbach c5b0e7c056 iwlwifi: mvm: implement mac80211's flush callback
This allows mac80211 to flush the Tx queues before it sends
critical management frames.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 23:32:47 +03:00
Andrei Otcheretianski bd3398e286 iwlwifi:mvm: Add AP/GO channel switch support
Publish WIPHY_FLAG_HAS_CHANNEL_SWITCH if the fw supports
newly introduced IWL_UCODE_TLV_API_CSA_FLOW.
When CSA starts, save the switching vif inside mvm and during the CSA period
configure fw with a new beacon after each beacon transmission in order to
update the csa counters.
Also, handle correctly the CSA unbind-bind flow which is triggered by mac80211
when the actual channel switch happens.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 23:32:46 +03:00
Eliad Peller 9256c2051d iwlwifi: mvm: wait for d0i3 exit in some more ampdu actions
Some ampdu actions change queues by direct target access.

Since the bus is disabled in d0i3, make sure to exit d0i3
before handling these actions.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 23:32:45 +03:00
Johannes Berg 4d075007d6 iwlwifi: mvm/pcie: capture last commands on firmware error
When a firmware error occurs, capture the last 32 commands
(which are still in memory) in the error dump debugfs file.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 23:32:44 +03:00
David Spinadel bd5e4744a6 iwlwifi: mvm: do no sched scan while associated
Currently the FW doesn't support sched scan while associated,
Prevent it.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 21:56:37 +03:00
Felix Fietkau 7a42e4e74b ath9k_hw: get QCA953x WMAC revision via platform_data
The SREV register in the WMAC register space does not contain the chip
revision, so it needs to be passed in from the kernel.

With an updated kernel, this fixes tx gain table selection.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-06 14:51:02 -04:00
Andy Spencer ab1796ebda RTL8192CU: Increase max APFM_ONMAC polling count
With certain hardware combinations the poll interval is exceeded before
initialization completes.

Tested on a MacBookPro10,1 using a Sabrent USB-A11N USB adapter.

Signed-off-by: Andy Spencer <andy753421@ucla.edu>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-06 14:51:02 -04:00
Rajkumar Manoharan b59d45e749 ath9k: Advertise support for AP mode channel width changes
This will enable AP mode to change channel width dynamically
based on 20/40 intolerance report sent by associated client.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-06 14:51:01 -04:00
Ben Greear 76c939832a ath9k: Prevent divide-by-zero upon bad beacon_interval.
A similar patch fixed crashes seen on an ath9k system
when testing against a broken ath10k AP.  This patch
is slightly less protective, but probably will do the
job and is less redundant.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-06 14:51:01 -04:00
Johannes Berg 83f32a4b4a iwlwifi: pcie: get rid of q->n_bd
This variable always tracks a constant value (256) so there's
no need to have it. Removing it simplifies code generation,
reducing the .text size (by about 240 bytes on x86-64.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 21:39:05 +03:00
Johannes Berg 6d6e68f839 iwlwifi: pcie: use bool for iwl_pcie_txq_build_tfd() argument
The 'reset' argument is clearly a boolean, so use bool instead
of u8 with 0/1 values.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 20:41:21 +03:00
Johannes Berg c43e93300a iwlwifi: make LED support optional
If there's no LED on the system, it doesn't make a lot of sense
to include close to 4k of LED-related code (mostly in mac80211),
so instead of forcing LED support into the kernel, don't build
iwlwifi/mac80211 LED support if there's no LED class support.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: EliadX Peller <eliad@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 20:40:05 +03:00
Eran Harary bb926924e9 iwlwifi: mvm: fix bug in parse_nvm_sections
The old code checks if hw_section_num is valid while the
right thing to do is to check if section[hw_section_num].data
is valid.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 20:40:04 +03:00
Eran Harary 9f32e01731 iwlwifi: mvm: select the MAC address according to priority
For family 8000 products, the driver should take the MAC
address from the mac_override section and only if this
section is empty it should take it from the HW section.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 20:40:03 +03:00
Eran Harary 26481bf41b iwlwifi: mvm: Prioritize external nvm values on top of the OTP values
Read first the nvm sections from the OTP, then read the nvm
sections from the external file and override the OTP values
(if there were any values in the OTP).

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Dor Shaish <dor.shaish@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 20:40:02 +03:00
Eran Harary 14b485f041 iwlwifi: mvm: prevent nic to powered up at driver load
A few devices aren't allowed to be powered up at driver
load time. Add "power_up_nic_in_init" flag to iwl_cfg
structure to customize the load flow according to the
device.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 20:40:02 +03:00
Eran Harary 300855443e iwlwifi: mvm: fix bug with OTP memory size
OTP size changed in family 7000 and in family 8000.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 20:40:01 +03:00
Johannes Berg 7a53174146 iwlwifi: mvm: remove useless variable
There's no need to use a variable just to return the result
of another function call at the end of a function, remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 20:40:00 +03:00
Eyal Shapira 049e0c330c iwlwifi: mvm: rs: choose correct expected tpt table
The expected throughput table used when estimating a new column
depends on the channel bandwidth. When switching from legacy to
siso or mimo the wrong expected throughput table was used as it
was chosen based on the the channel bandwidth in legacy which is
always 20Mhz. Instead it should be chosen based on the current sta
bandwidth which could be also 40Mhz or 80Mhz.
When enabling MCS9 this bug leads to a problem where the max
expected throughput of the siso or mimo column is 0 as MCS9 isn't
supported in 20Mhz. This in turns prevents switching to siso or mimo.

Fix this by using the sta bandwidth when deciding which table to choose.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 20:39:59 +03:00
Eyal Shapira e6c8d602dc iwlwifi: mvm: rs: avoid TPC while in search cycle
TPC is a power optimization which should only be attempted when
we're in the "stay in column" state after we've locked onto an optimal
rate.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 20:39:59 +03:00
Eyal Shapira 1e9551deba iwlwifi: mvm: rs: don't allow TPC when power save is disabled
Currently we were checking only if the driver power_scheme is set
to CAM. TPC shouldn't be enabled also when disabling powersave on the
interface (e.g. iw wlan0 set power_save off)
which may occur even if power_scheme wasn't set to CAM.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 20:39:58 +03:00
Eyal Shapira 80763515c3 iwlwifi: mvm: rs: overhaul rs_get_best_rate
rs_get_best_rate determines the optimal rate to try in a
new Tx column. Currently we were sometimes trying a too high
rate which would lead us to fail and avoid switching to the
new column despite it having a potential to be better.
Change the logic to try and find the first rate which would
exceed the current actual throughput or be more aggressive
if the success ratio is good.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 20:39:51 +03:00
Eyal Shapira 31b204525a iwlwifi: mvm: rs: revert changes to search cycle rules
Adding more options in the search cycle causes longer
search cycles with additional wondering off to non optimal Tx
configurations. Reduce the Tx configurations searched to
improve throughput in non optimal attenuations.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 20:38:24 +03:00
Emmanuel Grumbach cebeb0f188 Merge remote-tracking branch 'wireless-next/master' into iwlwifi-next 2014-05-06 20:37:42 +03:00
Emmanuel Grumbach 939ecf6b14 Merge remote-tracking branch 'iwlwifi-fixes/master' into iwlwifi-next 2014-05-06 20:37:33 +03:00
Emmanuel Grumbach 8e96440e8d iwlwifi: mvm: rs - s/CPTCFG/CONFIG
My bad - I forgot to update this when sending the patch
upstream.

Fixes: 87d5e4155c ("iwlwifi: mvm: rs: reinit rs if no tx for a long time")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 20:35:57 +03:00
Emmanuel Grumbach 0fed2bcf17 iwlwifi: mvm: BT Coex - fix validity flags during init
The commit below introduced a bug in the validity bits in
init. Due to that, all the Coex mechanism stopped sending
kills to the BT side. Fix that.

Fixes: b9fae2d54c ("iwlwifi: mvm: BT Coex add support for Co-running block")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-06 19:46:24 +03:00
Geert Uytterhoeven 8e4a4f5d3a ath10k: Improve grammar in comments
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-05-05 15:37:49 +02:00