Commit Graph

4793 Commits

Author SHA1 Message Date
Emmanuel Grumbach
bbab758279 iwlwifi: define the non shared antenna per hardware
The sharing model will differ in new hardware. Define the
non shared antenna based on the device so that different
devices can have different names for the non shared antenna.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:39 +03:00
Johannes Berg
5d4185ae0c iwlwifi: pcie: clear command data on freeing
When freeing the structures used for command data, clear their
memory as they may have contained key material at some point.
Also clear the duplicated buffer when freeing it to be safe;
currently key material is never put there but that may change.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:39 +03:00
Liad Kaufman
c2a2b28bb7 iwlwifi: make hw rev checking more readable
Rather than ANDing with a mask - use existing macros, which
are more readable.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:39 +03:00
Emmanuel Grumbach
3a736bcb18 iwlwifi: trans: don't configure the set_active in SCD for dvm
This configuration is not needed for dvm, and it actually
broke it.

Reported-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:39 +03:00
Johannes Berg
f7f89e7bae iwlwifi: mvm: disable aggregation queues in station DB in FW
When disabling aggregation, disable the queues in the station
DB in the firmware, otherwise we leave the tfd_queue_mask in
a wrong state after an aggregation session has been torn down.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:38 +03:00
Eyal Shapira
f58220f6b9 iwlwifi: mvm: rs: don't zero tx stats after idle
Move the tx stats to the persistent area of lq_sta to
avoid them being zeroed out every time rs reinitializes
which happens after tx idle for 5 secs for example.
The automatic zeroing out made them difficult to use.

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>
2014-09-14 12:56:38 +03:00
Max Stepanov
f3bd58f486 iwlwifi: mvm: add MVM_FW_MCAST_FILTER_PASS_ALL option
Add MVM_FW_MCAST_FILTER_PASS_ALL option to iwl-dbg-cfg.ini configuration file
to enable/disable FW multicast filtering.

Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:38 +03:00
Luciano Coelho
a26d4e7b09 iwlwifi: mvm: fail temp test enabling if the ucode is not loaded
If the ucode is not loaded, don't allow the temperature test to be
started, but allow it to be changed or stopped if already running.

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>
2014-09-14 12:56:38 +03:00
Luciano Coelho
bc44886d26 iwlwifi: mvm: reset ucode_loaded flag when mac80211 stop is called
We rely on the value of the mvm->ucode_loaded flag to decide whether
or not we can perform certain operations (e.g. access to some debugfs
entries), so we need to reset it when the mac80211 stop operation is
called and the hardware is shutdown.

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>
2014-09-14 12:56:38 +03:00
Eyal Shapira
2536e7c350 iwlwifi: mvm: rs: remove max_rate_idx
max_rate_idx constraint is deprecated and it's handling is
faulty as well as it is relevant only for legacy rates but
was considered in HT/VHT. In most cases there was no side effect
as max_rate_idx was set to -1 but in certain cases like P2P
it got set to an actual rate idx which would limit the maximum
rate in HT/VHT by mistake.
max_rate_idx should be replaced by the masks fields but for
now remove it.

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>
2014-09-14 12:56:37 +03:00
Eyal Shapira
099d8086a8 iwlwifi: enable LDPC in 8000 chip family
This chip family supports LDPC so enable it.

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>
2014-09-14 12:56:37 +03:00
Eran Harary
161bdb7780 iwlwifi: mvm: allow preventing dummy notifications
The firwmare now allows the driver to disable dummy
notifications. These notifications sent by the firmware
are an overhead for slow buses. They are still useful for
fast buses.
Add a hardware switch to prevent these notifications only
on devices that work on slow buses.

Signed-off-by: Eran <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:37 +03:00
Oren Givon
d4200cb248 iwlwifi: add and edit 8000 series PCI IDs
Edit some 8000 series PCI IDs and add configuration to
Dual Band Wireless N 8260 devices.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-14 12:56:36 +03:00
Eyal Shapira
a3576ff28e iwlwifi: mvm: add LDPC support
Use LDPC for Tx and publish support for Rx in case the chip
supports LDPC. Enable it for the 7265 family.

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>
2014-09-14 12:56:36 +03:00
Emmanuel Grumbach
71511c866b Merge remote-tracking branch 'iwlwifi-fixes/master' into NEXT 2014-09-14 12:54:42 +03:00
Eliad Peller
0d8614b4b9 mac80211: replace SMPS hw flags with wiphy feature bits
Use the new static_smps / dynamic_smps feature bits
instead of mac80211-internal hw flags.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-09-11 13:37:02 +02:00
Eyal Shapira
2cddddc56a iwlwifi: mvm: fix an overflow in iwl_mvm_get_signal_strength
The idea here is to translate a value of 0 received from
the firmware to the lowest rssi figure. As rx_status->chain_signal
is a signed byte the lowest possible value is -128 and not -256.
-256 was causing 0 to get stored in the signed byte.

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>
2014-09-08 19:47:22 +03:00
Oren Givon
498abba6a0 iwlwifi: add PCI IDs and add then new 3165 series
This change does the following:
1) Add a new 7265 series PCI ID
2) Add two new 3160 series PCI IDs
3) Add the new 3165 series PCI IDs and configurations

Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 19:47:16 +03:00
Emmanuel Grumbach
f8dfc607b2 iwlwifi: dvm: disable power save by default
In
https://bugzilla.kernel.org/show_bug.cgi?id=84031,
the submitter said that disabling power saving helped,
do just that.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:18:47 +03:00
Johannes Berg
582de30afa iwlwifi: mvm: BT Coex - always initialize smps_mode
smps_mode is used uninitialized in a debug statement in AP
mode, so always initialize it.

While at it, fix a typo.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:18:36 +03:00
Emmanuel Grumbach
717e2390dc iwlwiwi: mvm: use bss_conf->dtim_period instead of conf.ps_dtim_period
The latter is meant for software implementation of power
save and is not per-virtual interface. Since our driver
supports multiple virtual interfaces, we need to use
vif->bss_conf.dtim_period.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:17:49 +03:00
Eyal Shapira
aa11bbf3df iwlwifi: mvm: treat EAPOLs like mgmt frames wrt rate
Using the LQ table which is initially set according to
the rssi could lead to EAPOLs being sent in high legacy
rates like 54mbps.
It's better to avoid sending EAPOLs in high rates as it reduces
the chances of a successful 4-Way handshake.
Avoid this and treat them like other mgmt frames which would
initially get sent at the basic rate.

Cc: <stable@vger.kernel.org> [3.13+]
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>
2014-09-08 09:17:29 +03:00
Johannes Berg
1bc10d3b50 iwlwifi: mvm: correctly handle PM/QoS changes from mac80211
When mac80211 requests multiple BSS config changes, as for example
while associating, we ignore power management and QoS changes and
only apply them later. Fix that by removing the "else" and making
the conditions independent.

Also move it after (potential) beacon filter enablement to have
that already enabled when going into power management code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:17:28 +03:00
Eliad Peller
22d059a5c7 iwlwifi: increase DEFAULT_MAX_TX_POWER
The chip is able to transmit up to 22dBm, so set
the constant appropriately.

CC: <stable@vger.kernel.org> [3.13+]
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:17:19 +03:00
Emmanuel Grumbach
86974bff06 iwlwifi: mvm: fix endianity issues with Smart Fifo commands
This code was broken on big endian systems. Sparse didn't
catch the bug since the firmware command was not tagged as
little endian.
Fix the bug for big endian systems and tag the field in the
firmware command to prevent such issues in the future.

Cc: stable@vger.kernel.org [3.14+]
Fixes: 1f3b0ff8ec ("iwlwifi: mvm: Add Smart FIFO support")
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:17:09 +03:00
Luciano Coelho
7c8b3bc688 iwlwifi: mvm: set MAC_FILTER_IN_BEACON correctly for STA/P2P client
In commit cad3f08c (iwlwifi: mvm: enable MAC_FILTER_IN_BEACON when
forced_assoc_off is set) the code to set the MAC_FILTER_IN_BEACON flag
was accidentally moved to the main block of the if statement, while it
should be in the else block instead.  Move it to the right place.

Fixes: cad3f08c23 ("iwlwifi: mvm: enable MAC_FILTER_IN_BEACON when forced_assoc_off is set")
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:17:08 +03:00
Johannes Berg
787d6c1f17 iwlwifi: mvm: BT Coex - remove shadowing variable
The variable 'u32 mode' exists twice, the latter shadowing
the former - remove the latter since there's no need for
two variables.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-08 09:16:55 +03:00
Johannes Berg
712b24adc1 iwlwifi: mvm: clean up AUX station handling
The auxiliary station is being handled using the internal
station helper functions, clean that up and make the helpers
static.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:13 +03:00
Johannes Berg
013290aa46 iwlwifi: mvm: clean up broadcast station handling
Unify all the functions that handle the per-interface broadcast
station and make them have mvm and vif parameters. While at it,
add a new function to allocate the broadcast station instead of
open-coding it, and make the combined alloc+send and free+send
functions use the alloc/free & send functions.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:13 +03:00
Johannes Berg
110cf81085 iwlwifi: mvm: use iwl_mvm_mac_get_queues_mask() more
There are a few places that can call the function
iwl_mvm_mac_get_queues_mask() instead of open-coding the
equivalent, so do that. This requires changing it to return
the multicast queue as part of the bitmap, which broke GO
mode because including it in the broadcast station queues
seems to confuse the firmware, so work around that.

Also, the API defines that the CAB queue shouldn't be
included in the TFD queue mask, adjust the comment
accordingly (not a bug).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:12 +03:00
Johannes Berg
9e848010bf iwlwifi: mvm: use tdls indication from mac80211
Instead of checking whether a given station is the first to
be added on a client interface check for the new TDLS flag
and warn in the unexpected cases.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:11 +03:00
Johannes Berg
df197c00bf iwlwifi: mvm: clarify stop_count, remove transport_stopped
The queue handling is a bit unclear - we have an array for
stop_count[IWL_MAX_HW_QUEUES] but indices really are the
mac80211 queue numbers. Change the array to be only of the
right size for mac80211 queues (IEEE80211_MAX_QUEUES) and
rename it to be clearer.

While at it, also remove the unused transport queue stop
bitmap in mvm.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:10 +03:00
Johannes Berg
b2d81db7b3 iwlwifi: mvm: clean up FIFO definitions
Move all FIFO definitions together into the firmware API
header file and use the same enum/naming scheme for the
command FIFO.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:10 +03:00
Johannes Berg
3dfd3a97c8 iwlwifi: mvm: correct firmware disassoc command sequence
The firmware would like to have a MAC context (unassoc)
before the AP station is removed (we do this) but would
like to keep the BSSID until after it is removed, so we
need to send two commands - one with the BSSID before
and one without the BSSID after.

In order to do this, we need to store the BSSID as it
will have been cleared by mac80211 by the time we get
notified of the disassociation. Also pass it around as
an override to the various functions needing it, and
keep taking it from the mac80211 data otherwise. This
avoids having to keep track of the BSSID in all modes.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:09 +03:00
Luciano Coelho
0ce04ce797 iwlwifi: mvm: set the TX disable bit when doing a chanctx switch
During a channel switch we should tell the firmware to disable TX
temporarily and re-enable it after the switch is done.

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>
2014-09-03 22:49:08 +03:00
Johannes Berg
8b4139dc9f iwlwifi: add Intel Mobile Communications copyright
Our legal structure changed at some point (see wikipedia), but
we forgot to immediately switch over to the new copyright
notice.

For files that we have modified in the time since the change,
add the proper copyright notice now.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:07 +03:00
Avri Altman
002a9e2677 iwlwifi: trans: configure the scheduler enable register
Currently the firmware is handling this, but that is wrong as it then
needs to assume a certain command queue, therefore this should be in
the driver; add it here so it can be removed from the firmware in the
future.

Signed-off-by: Avri Altman <avri.altman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:06 +03:00
Johannes Berg
64ba893066 iwlwifi: trans: make aggregation explicit for TX queue handling
Currently a valid sta_id is assumed to mean that the queue is
meant to also be aggregated, but that assumption will not be
true in the future, so don't make it in the lower level but
only in the inline wrapper.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:06 +03:00
Johannes Berg
d4578ea810 iwlwifi: trans: allow skipping scheduler hardware config
In a later patch, the hardware configuration will be moved to
firmware. Prepare for this by allowing hardware configuration
in the transport to be skipped by not passing a configuration
on enable and passing configure_scd=false on disable.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:05 +03:00
Eran Harary
0ade579cce iwlwifi: mvm: fix comment typo
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>
2014-09-03 22:49:04 +03:00
Johannes Berg
532cf5c683 iwlwifi: don't export tracepoints unnecessarily
The tracepoints that are only used in code linked with iwlwifi.ko,
as are the tracepoints, don't need to be exported, so don't.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:03 +03:00
Johannes Berg
a43ad46a45 iwlwifi: mvm: add some debugging to quota allocation
In order to follow more easily what's going on, add some
debug statements to the quota allocation algorithm.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:03 +03:00
David Spinadel
2ce89cd6df iwlwifi: mvm: enable passive fragmented scan changes
Enable fragmented scan that was diabled due to a FW bug.
New fixed FWs use a TLV bit to advertise fragmented scan support.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:02 +03:00
Johannes Berg
fea7795f1c iwlwifi: trans: refactor txq_enable arguments
Instead of having all arguments passed to the function,
add a struct to hold them and only pass some directly.

This will make future work in this area cleaner.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:01 +03:00
Avri Altman
680073b78a iwlwifi: consolidate hw scheduler configuration code
Configuring the hw scheduler during queue enablement is done by
writing the appropriate values to the scheduler peripherals, and
it is essentially the same for all buses.

Whenever writing is done via the standard iwl_write_prph, we can
avoid duplicating the code for each bus. Those operations are
queue deactivation, RA/TID mapping, chain-building settings,
enabling/disabling aggregations and activating/deactivating the
TX FIFOs.

Consolidate this code using static inlines in a new header file.

Signed-off-by: Avri Altman <avri.altman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:00 +03:00
Liad Kaufman
d20d37bc39 iwlwifi: mvm: wait for TE notif when protecting TDLS session
Make sure that when running the TDLS discovery session
protection - the time event that ensures we remain on channel
has been scheduled and started running before leaving.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:49:00 +03:00
Luciano Coelho
2533edcee8 iwlwifi: mvm: add option that allows a vif to disable PS
We need to disable PS when a monitor vif is active or, in the future,
when a channel switch is happening.  Add a boolean to mvmvif that
allows PS to be disabled generically.  Additionally, make the monitor
interface use this new flag when it gets activated.

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>
2014-09-03 22:48:59 +03:00
Luciano Coelho
ef9203d23f iwlwifi: mvm: add function to update only ps
Add a new iwl_mvm_power_update_ps() function that allows only ps to be
updated according to changes in the vifs.  This allows us to disable
ps only without affecting the pm values of the vifs (and to avoid
sending unnecessary MAC_PM_POWER_TABLE commands to the firmware).

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>
2014-09-03 22:48:58 +03:00
Luciano Coelho
128aa948d0 iwlwifi: mvm: refactor iwl_mvm_power_set_pm() to spin the ps part off
Separate the ps part of iwl_mvm_power_set_pm() into a new
iwl_mvm_power_set_ps() function.  This will enable us to update the ps
part independently from the rest, which is needed by CSA (at least).

This required a bit of refactoring and the creation of a new iterator
function.

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>
2014-09-03 22:48:57 +03:00
Luciano Coelho
b1873300e1 iwlwifi: mvm: re-enable ps when monitor interfaces are removed
If a monitor interface is added and then removed, we don't reset the
mvm->ps_disabled flag, so we never re-enable power saving.  Fix that
and rearrange the code a bit.

Additionally, fix a small indentation mistake in the
iwl_mvm_power_set_pm() function declaration.

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>
2014-09-03 22:48:57 +03:00
Eliad Peller
228670b2e6 iwlwifi: mvm: clear d0i3 state on recovery
If recovery happened after mvm entered d0i3 (e.g.
due to sysassert when releasing the bus), the
mvm->state wasn't cleared properly, causing the
ongoing recovery to fail (due to iwl_mvm_ref_sync
failure).

This in turn fails the ongoing recovery, and triggers
a reprobe, which terminates any ongoing wifi activity.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:48:49 +03:00
Eyal Shapira
9ecd051ecd iwlwifi: mvm: disable tx aggregation on low latency vifs
Aggregations hit latency so disable it by default on
low latency vifs for now. Enable control over this behavior and
allow control over the max frames in an AMPDU in low latency
vifs via debugfs.

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>
2014-09-03 22:33:17 +03:00
Luciano Coelho
bdd5483958 iwlwifi: mvm: add debugfs entry for ps_disabled
In order to make debugging easier, add an entry to export the
ps_disabled value via debugfs.  To make usage of the
debugfs_create_*() function easier, change the ps_disabled element to
u8.

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>
2014-09-03 22:33:17 +03:00
Johannes Berg
d6ca18de12 iwlwifi: make U-APSD default configurable at compile time
With a significant number of deployed APs, enabling uAPSD leads to the
AP never using aggregation sessions (likely due to the complexities
involved in handling uAPSD in those.) This obviously results in a large
drop in throughput with such APs.

On the other hand, uAPSD can result in some power consumption benefits,
but for now just disable it to get performance with affected APs back
up.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:16 +03:00
Eran Harary
32be1a83af iwlwifi: mvm: fix the dump_umac_error_log
1. the base_address limitation was wrong, address can be bigger than
0x80C000
2. the ucode data_struct changed.

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>
2014-09-03 22:33:15 +03:00
Matti Gottlieb
a2d79c5709 iwlwifi: mvm: Add marker command 0xcb
Add Marker command.
The marker command send the ucode the time of sending the command in
milliseconds since 1970-01-01 00:00:00 UTC, in addition to other metatdata.
The ucode inserts this information into the usniffer logs, and returns the GP2
time stamp inside the command response.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:15 +03:00
Luciano Coelho
efc36dbd5a iwlwifi: mvm: don't run automatic checks if CT was caused by debugfs
If we're manually testing the CT kill functionality via debugfs, we
shouldn't schedule the work to recheck the temperature after the
ct_kill_duration period has passed.

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>
2014-09-03 22:33:14 +03:00
Luciano Coelho
b689fa799a iwlwifi: mvm: reset the temperature when temperature test is disabled
Since we can't read the actual temperature when the firmware is
running, just set the temperature to 0 when the test is disabled and
disable CT Kill if it was enabled.

Additionally, since we rely on iwl_mvm_tt_handler() to exit CT kill
when in test mode, call iwl_mvm_exit_ctkill() in that function if the
temperature is low again.  Also make the iwl_mvm_enter_ctkill() and
iwl_mvm_exit_ctkill() return if called when not necessary anymore
(e.g. when iwl_mvm_exit_ctkill() is called when we're not in CT-kill).

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>
2014-09-03 22:33:13 +03:00
Emmanuel Grumbach
a4db848f2d iwlwifi: mvm: force protection for P2P
Performance is less an issue in P2P and reliability
is critical. Enable protection always for P2P.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:12 +03:00
Eliad Peller
84fd7608a0 iwlwifi: mvm: add use_ps-poll debugfs power option
By default, when uapsd is not used, the ucode uses
null data packet to exit power-save and get then
pending frames.

However, some tests require the explicit usage of ps-poll.
Allow setting use_ps_poll power option (through debugfs)
to configure the ucode to use ps-poll instead.

The ucode configuration is done by setting the advanced-pm
flag while setting all the ACs to non-upasd mode.

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>
2014-09-03 22:33:12 +03:00
Emmanuel Grumbach
697162a13d iwlwifi: mvm: use dynamic SMPS for P2P Client
This allows to force the GO to use protection and enhances
the reliability of the link.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:11 +03:00
Emmanuel Grumbach
7ceb98a313 iwlwifi: mvm: reduce the AMPDU size in low latency mode
This allows to leave a frame in the Tx Fifo which allows
the firmware to try to enter burst mode.
The end result of this is a better latency since the
firmware utilises the TxOP better.

Also limit the AMPDU size to the limit set in the ADDBA
response. This doesn't change much since the AMPDU size
was limited by the configuration of the hardware scheduler,
but here we add a software limit by the mean of the link
quality command.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:10 +03:00
Matti Gottlieb
7280d1f0bd iwlwifi: mvm: Add set NIC temperature debug option
Add ability to set the NIC's temperature and ignore the actual temperature
that the FW supplies.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-03 22:33:06 +03:00
Emmanuel Grumbach
6efaaf33be iwlwifi: mvm: enable scheduled scan on newest firmware
Scheduled scan was disabled because of a bug in the firmware.
The firmware reported support for this feature, but enabling
it led to assertions.
The bugs have been fixes in latest firmware versions, so that
we can re-enable the feature on latest firmwares only.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-01 10:03:21 +03:00
Emmanuel Grumbach
d88c8958dc iwlwifi: bump firmware API version to 10 for 7000 and 8000
New firmware on the way.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-09-01 09:50:14 +03:00
Marcel Holtmann
ab1304b986 iwlwifi: Remove module build requirement for Intel Wireless WiFi
The CONFIG_IWLDVM and CONFIG_IWLMVM currently have a
"depends on m" as its requirement forcing it to be build
as module. This is not needed and thus just remove it.

Fixes: ae7486a2b7 ("iwlwifi: fix Kconfig issues")
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
[Squashed 2 commites for MVM and DVM]
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-08-31 22:20:09 +03:00
Emmanuel Grumbach
f47f46d7b0 Revert "iwlwifi: dvm: don't enable CTS to self"
This reverts commit 43d826ca59.

This commit caused packet loss.

Cc: <stable@vger.kernel.org>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-08-31 22:11:19 +03:00
Linus Torvalds
a11c5c9ef6 PCI changes for the v3.17 merge window (part 2):
Miscellaneous
     - Remove DEFINE_PCI_DEVICE_TABLE macro use (Benoit Taine)
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Merge tag 'pci-v3.17-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull DEFINE_PCI_DEVICE_TABLE removal from Bjorn Helgaas:
 "Part two of the PCI changes for v3.17:

    - Remove DEFINE_PCI_DEVICE_TABLE macro use (Benoit Taine)

  It's a mechanical change that removes uses of the
  DEFINE_PCI_DEVICE_TABLE macro.  I waited until later in the merge
  window to reduce conflicts, but it's possible you'll still see a few"

* tag 'pci-v3.17-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use
2014-08-14 18:10:33 -06:00
Emmanuel Grumbach
77b2f28659 iwlwifi: mvm: disable scheduled scan to prevent firmware crash
There are firmwares which don't support scheduled scan.
Disable it for now.
Linus's system encoutered this issue.
Thanks to David Spinadel for his help.

Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-08-14 19:47:41 +03:00
Benoit Taine
9baa3c34ac PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use
We should prefer `struct pci_device_id` over `DEFINE_PCI_DEVICE_TABLE` to
meet kernel coding style guidelines.  This issue was reported by checkpatch.

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

// <smpl>

@@
identifier i;
declarer name DEFINE_PCI_DEVICE_TABLE;
initializer z;
@@

- DEFINE_PCI_DEVICE_TABLE(i)
+ const struct pci_device_id i[]
= z;

// </smpl>

[bhelgaas: add semantic patch]
Signed-off-by: Benoit Taine <benoit.taine@lip6.fr>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-08-12 12:15:14 -06:00
Arik Nemtsov
f697267f82 iwlwifi: mvm: teardown TDLS peers during chan-switch and AP DCM
The DCM condition was not checked well for channel switch in both AP and
station scenarios. Teardown was also not done for AP/GO DCM. Add the
missing checks.

Reported-by: Peer, Ilan <ilan.peer@intel.com>
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 22:08:47 +03:00
Emmanuel Grumbach
917d083d48 Merge branch 'iwlwifi-fixes' into iwlwifi-next
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

Conflicts:
	drivers/net/wireless/iwlwifi/mvm/mac80211.c
2014-07-22 19:26:41 +03:00
Emmanuel Grumbach
8a275bad9c iwlwifi: mvm: reset beacon filtering and BT Coex data upon FW restart
When the firmware asserts, we restart the device and reset
the relevant data we hold in the driver. BT Coex data was
not reset and because of that, the driver wouldn't
reconfigure the firmware properly after firmware restart.
Same for beacon filtering. Fix that.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:13 +03:00
Eran Harary
cc87d32293 iwlwifi: mvm: update smart fifo / beacon filtering upon association
When we associate, we may have heard the beacon before the
association. In that case, BSS_CHANGED_BEACON_INFO will be
set along with BSS_CHANGED_ASSOC in changes in
bss_info_change.

In this case, we didn't update the smart fifo nor beacon
filtering leaving those two feature disabled.

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>
2014-07-22 19:21:13 +03:00
Emmanuel Grumbach
473ad712a4 iwlwifi: dump CSRs to fw-error-dump
Add the Control Status Registers to the firmware error dump
infrastructure.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:12 +03:00
Emmanuel Grumbach
67c65f2cf7 iwlwifi: dump periphery registers to fw-error-dump
Use the fw-error-dump infrastructure to dump the periphery
registers. Only certain ranges are readable, so dump only
these.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:11 +03:00
Emmanuel Grumbach
48eb7b34ff iwlwifi: split fw-error-dump between transport and mvm
The mvm op_mode won't allocate the buffer for the transport
any more. The transport allocates its own buffer and mvm
is in charge of splicing the buffers in the debugfs hook.

This makes the repartition easier to handle.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:10 +03:00
Emmanuel Grumbach
074279abb9 iwlwifi: fix inconsistency about power_save module parameter
modinfo and kerneldoc disagreed on the meaning of this field.

Reported-by: Andrea Oliveri <oliveriandrea@gmail.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:10 +03:00
Eran Harary
abf09c5613 iwlwifi: mvm: minor change in debug print
Add OTP to the string: "can't parse empty OTP/NVM section"
NVM usually refers to nvm_file while the problem can be in
the OTP.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:09 +03:00
Eliad Peller
4660dfbbe0 iwlwifi: mvm: wait for handlers when stopping scans
The recent unified scan api change introduced issues
when stopping ongoing scans, since both regular and
sched scan now use same stopped notification.

When issuing a new scan right after a running one,
we get the "old" notification and handle it wrongly
as notification for the current scan.

Fix it by introducing a new function that make sure
we consume the pending notifications before issuing
a new scan.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: ArikX Nemtsov <arik@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:08 +03:00
Emmanuel Grumbach
45bbb2ca1e iwlwifi: mvm: BT Coex - don't change AP SMPS mode
Leave it to default instead - regardless of the BT activity.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:07 +03:00
Emmanuel Grumbach
1459f269e8 iwlwifi: mvm: BT Coex - fix the ACK / CTS kill mask
According to new requirements, the ACK / CTS kill mask is
not related to reduced TX power anymore. This allows to
remove the code that tracked reduced TX power enablement
across different interfaces.
The ACK / CTS kill mask is now fetch from a table. It
depends on the Activity grading (activity from BT) and on
the Look Up Table (LUT) type.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:21:07 +03:00
Ariej Marjieh
b112889c5a iwlwifi: mvm: add Aux ROC request/response flow
The Remain On Channel framework added to the firmare is
a bit like time events. It allows the driver to request
the firmware to be on a certain channel for a certain time.
Unlike the time events, the ROC infrastructure doesn't need
a MAC context in the firmware - it uses a generic context
called "auxiliary framework".

This is useful for any offchannel activity that is not bound
to a specific MAC.
The flow is synchronized much like with time events:
1) The driver receives an action frame from the wpa_supplicant
   via nl80211 that requests to be sent offchannel.
2) The driver sends an Aux ROC command (0x53) to the firmware.
3) The firmware responds with the unique id of the time event.
4) When time event starts, the driver puts the frame in the
   Aux queue.

Special care needs to be taken when the time events ends:
the queue needs to be cleaned-up.

Signed-off-by: Ariej Marjieh <ariej.marjieh@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-22 19:20:59 +03:00
Ariej Marjieh
720befbf2e iwlwifi: mvm: Define AUX ROC Command
Add new AUX ROC command that is intended for HS2.0 purposes.
It is used to send ANQP requests on a specific channel.

This command requests the firmware to trigger a time event
and remain on a certain channel for a given duration.
Triggering the time event is done by using the Aux
Framework in the firmware, and makes use of the Aux station
(similarly to scan).

Signed-off-by: Ariej Marjieh <ariej.marjieh@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:43:39 +03:00
Ariej Marjieh
7da91b0ee4 iwlwifi: mvm: Enabling Aux Queue
Enabling the Aux queue and mapping it to FIFO 5.
Defining the Aux queue for the Aux station.

Signed-off-by: Ariej Marjieh <ariej.marjieh@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:43:14 +03:00
Eliad Peller
576eeee9d3 iwlwifi: mvm: add some missing iwl_mvm_ref_sync() calls
Add iwl_mvm_ref_sync() calls (with new ref types) to
flows that might access the device directly.

These calls make sure the device is out of d0i3,
and the bus is available for direct access.

Since some of these functions are reentrant, convert
the refs_bitmap to a ref counter, so multiple refs
of the same type could be taken concurrently.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:43:13 +03:00
Eytan Lifshitz
51ea1c7dbd iwlwifi: mvm: fix wrong offset while reading from NVM
As part of thermal throttling, some data is being read from NVM.
The offset is in words, but was addressed as in octets. fixed.

Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:43:13 +03:00
Eliad Peller
4601879419 iwlwifi: mvm: pass beacons from foreign APs
In AP mode, configure the fw to pass beacons from
foreign APs, in order to be able to set the ht
protection IE properly.

Add the same filters in case of GO (which didn't have
any configured filter_flags, probably by mistake)

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:38:25 +03:00
Emmanuel Grumbach
4b8265ab4d iwlwifi: mvm: use C99 initializers for add_sta
Instead of code the fixed values, use a C99 initializer.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:26:46 +03:00
Emmanuel Grumbach
ae7486a2b7 iwlwifi: fix Kconfig issues
Randy fixes a few issues in iwlwifi's Kconfig. Because of
this, 'Debugging options' was not indented under iwlwifi
using menuconfig.

I added a few other fixes on the way, like the link to the
website and added 7265 in the supported NICs.

Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
[ Commit message + other fixes ]
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:20:55 +03:00
Oren Givon
745160ee10 iwlwifi: add max RX aggregation size
Allow to configure the maximal Rx AMPDU size per device.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-21 10:17:27 +03:00
Emmanuel Grumbach
5fc7d86c7a iwlwifi: mvm: BT Coex - fix TLC with old API
A copy paste issue broke the rate control when a firmware
with the old API is used.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-08 08:44:31 +03:00
Emmanuel Grumbach
589a6ba46b iwlwifi: mvm: minor fix in comment
The comment was not accurate, we are talking about the frames
*for* the station and not from the station.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:25 +03:00
Liad Kaufman
9b1fcc11a8 iwlwifi: mvm: remove 8000 HW family setting of adc sampling on nic config
This patch removes the setting of the ADC sampling bits in
the mvm nic configuration. This setting is not required by
the firmware, and furthermore - it interferes with the DBGC
when it is running in DRAM mode on PCIe.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Dor Shaish <dor.shaish@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:24 +03:00
Arik Nemtsov
f59e0e3cd8 iwlwifi: mvm: teardown TDLS peers when initiating DCM
The FW currently doesn't optimally support TDLS in DCM mode. Teardown
all TDLS peers when we have more than a single phy context.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:24 +03:00
Arik Nemtsov
fa3d07e47f iwlwifi: disable PSM on vifs with associated TDLS peers
The FW does not support PSM on a vif with associated TDLS peers. Disable
PSM when the first peer joins and re-enable it when the last leaves.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:23 +03:00
Arik Nemtsov
07ecd897b1 iwlwifi: mvm: protect TDLS discovery session
Use the new mac80211 callback to protect a TDLS discovery session so we
can hear the discovery-response packet.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:22 +03:00
Arik Nemtsov
cf7b491dbb iwlwifi: mvm: disallow new TDLS stations when appropriate
HW/FW constraints dictate that TDLS should only be used when a single
phy ctx is active. We also support at most 4 TDLS peers. We don't
support TDLS on a P2P vif.

Unify and move a phy-ctx counting implementation from the power-mgmt code
in order to simplify implementation.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:21 +03:00
Andrei Otcheretianski
003e5236a1 iwlwifi: mvm: Use CS tx block bit for AP/GO
An AP/GO may perform the channel switch slightly before its stations.
This scenario may result in packet loss, since the transmission may start
before the client is actually on a new channel. In order to prevent
potential packet loss disable tx to all the stations when the channel
switch flow starts. Clear the disable_tx bit when a station is seen on a
target channel, or after IWL_MVM_CS_UNBLOCK_TX_TIMEOUT beacons on a new
channel. In addition call ieee80211_sta_block_awake in order to inform
mac80211 that the frames for this station should be buffered.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:21 +03:00
Andrei Otcheretianski
7f0a7c671c iwlwifi: mvm: Reflect GO channel switch in NoA
According to the spec, GO/AP should perform the channel switch just
before "beacon 0". However, since the exact timing isn't defined,
it may result in a sudden GO disappearance from the channel.
Prevent potential packet loss when performing the CS by scheduling
NoA time event and executing the channel switch flow when a notification
from fw is received.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:20 +03:00
Andrei Otcheretianski
664322fa43 iwlwifi: mvm: Protect mvm->csa_vif with RCU
Currently mvm->csa_vif is protected with mvm mutex. The RCU protection
is required for "iwlwifi: mvm: Reflect GO channel switch in NoA" patch.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:19 +03:00
Andrei Otcheretianski
fe887665a8 iwlwifi: mvm: Use beacon_get_template instead of beacon_get
Call ieee80211_beacon_get_template instead of ieee80211_beacon_get and sync the
CSA counters with mac80211 after each beacon transmission.

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>
2014-07-07 21:41:18 +03:00
Luciano Coelho
f0c9778396 iwlwifi: mvm: CSA unbind-bind flow support for client
Implement support for unbind-bind flow for the client roles.  This
includes telling the firmware that we are not associated, removing
time-events, removing quotas and updating power management during the
actual switch, and redoing everything in the new channel.

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>
2014-07-07 21:41:18 +03:00
Luciano Coelho
b08c1d972a iwlwifi: mvm: add switch_vif_chanctx operation
Implement the switch_vif_chanctx operation with support for a
single-vif and SWAP mode.  The REASSIGN mode and multi-vifs are not
supported yet.

This operation needs to implement 4 steps, namely unassign, remove,
add and assign the chanctx.  In order to do this, split out these
operations into locked and non-locked parts, thus allowing us to call
them while locked.

Additionally, in order to allow us to restart the hardware when
something fails, add a boolean to the iwl_mvm_nic_restart() function
that tells whether the restart was triggered by a FW error or
something else.

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>
2014-07-07 21:41:17 +03:00
Johannes Berg
0166230c6c iwlwifi: mvm: remove update type argument from quota update
It turns out that adding the update type argument was pointless as
quota update is never called from the add_interface() callback.
Therefore, IWL_MVM_QUOTA_UPDATE_TYPE_NEW isn't actually needed and
then only a "disabled_vif" argument is needed for the upcoming CSA
work.

Remove the whole enum iwl_mvm_quota_update_type and pass the right
arguments (always NULL for disabled vif right now) to the function
in all current call sites.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:16 +03:00
Johannes Berg
494983e0e7 iwlwifi: mvm: don't pass update type to quota iterator
Simplify the quota iterator by not passing the update type,
it only needs to know whether or not to skip an interface.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:15 +03:00
Johannes Berg
99a1230d9d iwlwifi: mvm: validate that we don't send zero quota
The firmware currently deals with zero quota for a given
binding, but it seems odd to send that down. Make sure
that we don't do that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:15 +03:00
Johannes Berg
63faceb60b iwlwifi: mvm: don't send zero quota to the firmware
There are some cases where we can currently send zero quota
for a valid binding, e.g. if we update while an interface is
bound to a channel context but not yet acting as an AP.

Avoid this by reordering the checks.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:14 +03:00
Luciano Coelho
63cbe180f8 iwlwifi: mvm: let iwl_mvm_update_quotas disregard a disabled vif
In some cases (e.g. when we're doing a channel switch), we may need to
disable the quota of a vif temporarily.  In order to do so, add an
argument to the iwl_mvm_update_quotas() function to tell if the passed
vif is a new one or if it should be disregarded.

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>
2014-07-07 21:41:13 +03:00
Eran Harary
ca55eb4782 iwlwifi: 8000: drop a print when the address is invalid
when driver takes the MAC address from the HW section and
it isn't valid - print an error.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:12 +03:00
David Spinadel
b14fc2befb iwlwifi: mvm: fix endianity in scan command
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>
2014-07-07 21:41:11 +03:00
David Spinadel
af91344c23 iwlwifi: mvm: init lmac scan command
Initialize LMAC scan command.
Fix EBS flag to be dependant on TLV flg and fix other bugs.

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>
2014-07-07 21:41:10 +03:00
David Spinadel
fb98be5e94 iwlwifi: mvm: add unified LMAC scan API
Add new scan API that uses the same command 0x51 for both regular and
sched scan.

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>
2014-07-07 21:41:10 +03:00
Eliad Peller
c6e1faad75 iwlwifi: mvm: rs: don't save debugfs files
These file are removed recursively anyway, so there's no
point saving them just to redundantly remove them later.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:09 +03:00
Eliad Peller
ae969afe43 iwlwifi: mvm: rs: don't clear persistent fields
iwl_mvm_rs_rate_init() is called multiple times to re-init
the rate scaling statistics (e.g. after some idle time).

It clears all the lq_sta sta, including some fields that
shouldn't be cleared (e.g. debugfs pointers). Fix it
by adding a new 'persistent' sub-struct, and
avoid clearing it on (re-)init.

Move the initialization of the persistent fields to
rs_alloc_sta instead.

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>
2014-07-07 21:41:08 +03:00
Eran Harary
bdce40f006 iwlwifi: mvm: warn about empty OTP
Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:07 +03:00
Emmanuel Grumbach
4c86f938d3 iwlwifi: mvm: BT Coex - relax constraints when TTC / RRC is active
When TxTxCo-Running is active, we can relax the constraints
on the rate control.
When RxRxCo-Running is active, we can relax the constrains
on SMPS.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:41:07 +03:00
Emmanuel Grumbach
160be5719b iwlwifi: mvm: BT Coex - fix debugfs with old API
Fix the debugfs hook to make it able to display the data
with the old firmware API.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:35:57 +03:00
Emmanuel Grumbach
261c0ec07e iwlwifi: mvm: BT Coex - add High Band retention
Tell the firmware if TTC should be enabled when switching
to High Band.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:35:56 +03:00
Emmanuel Grumbach
455e7ac578 iwlwifi: mvm: BT Coex - convert reduced Tx power to new API
No need to send the big BT_COEX_CMD command, we have now
a much thiner command that updates only what is needed.
Adapt the code to that.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:35:55 +03:00
Emmanuel Grumbach
704602a153 iwlwifi: mvm: BT Coex - convert the co-running update to new API
No need to send the big BT_COEX_CMD command, we have now
a much thiner command that updates only what is needed.
Adapt the code to that.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:35:55 +03:00
Emmanuel Grumbach
df878f38ed iwlwifi: mvm: BT Coex - convert the sw boost update to new API
No need to send the big BT_COEX_CMD command, we have now
a much thiner command that updates only what is needed.
Adapt the code to that, and open the patch to the updates.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:35:54 +03:00
Emmanuel Grumbach
430a3bbafd iwlwifi: mvm: BT Coex - new API
Start the new BT Coex implementation.
Don't react to notifications for now - only the initial
configuration is implemented. The rest will happen in next
patches.
Since coex.c now uses the new the new structures in all
functions, we need to adapt the code to compile, even if it
doesn't run yet.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:35:49 +03:00
Emmanuel Grumbach
0ea8d0432c iwlwifi: mvm: BT Coex - prepare towards new API
A new API is coming. This new API is not backward
compatible. So we need to keep the old commands to be able
to work with the former API.
Move all the current code into a new file: coex_legacy.
If a firmware with the new API is detected, we currently
just bail out since the implementation of the new API will
come in future patches.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-07 21:34:05 +03:00
Emmanuel Grumbach
c6a21ff319 iwlwifi: mvm: fix merge damage
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-06 12:51:22 +03:00
Emmanuel Grumbach
7f514f5c87 iwlwifi: mvm: remove unused flags from TX command
These flags are not used by the firmware anyway.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-06 11:16:16 +03:00
Emmanuel Grumbach
c544e9c4c3 iwlwifi: rename iwl_fw_error_fw_mon to iwl_fw_error_dump_fw_mon
This is matches the convention of the other structures.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-06 11:16:16 +03:00
Eran Harary
1e0b393a44 iwlwifi: mvm: read the mac address in family 8000
In family 8000 products the MAC address in the OTP could be in either:
- WFPM address
- PCIE address
In sdio product we should read it from the WFPM, in pcie product we
should read it from the PCIe location.
This is relevant only from otp version 0xE08 and above.
While at it, fix the bytes order in version 0xE08.

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>
2014-07-06 11:16:15 +03:00
Gregory Greenman
d40fc489f3 iwlwifi: mvm: wait for d0i3 exit in add interface flow
This patch makes sure there're no target accesses in the add
interface flow before d0i3 exit completes.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-06 11:16:15 +03:00
Emmanuel Grumbach
5bfe6f5328 iwlwifi: mvm: update layout of firmware error dump
The memory was not zeroed - fix that. Also update the
iwl_fw_error_dump_info structure.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-06 11:16:15 +03:00
Emmanuel Grumbach
655e6d6db2 iwlwifi: mvm: kill iwl_mvm_fw_error_rxf_dump
Its content can move to the caller.
While at it, move iwl_mvm_fw_error_rxf_dump to caller.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-06 11:16:15 +03:00
Emmanuel Grumbach
78dae98fab iwlwifi: mvm: don't collect logs in the interrupt thread
Instead of reading all the data in the context of the
interrupt thread, collect the data in the restart flow
before the actual restart takes place so that the device
still has all the information.
Remove iwl_mvm_fw_error_sram_dump and move its content to
iwl_mvm_fw_error_dump.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-06 11:16:15 +03:00
Emmanuel Grumbach
d4849277f9 iwlwifi: remove wrong comment about alignment in iwl-fw-error-dump.h
The chunks of data do not need to be multipliers of 4 nor
4-bytes aligned.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-06 11:16:14 +03:00
Emmanuel Grumbach
6d6a475163 iwlwifi: fix naming mistake for the fw_monitor module parameter
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-06 11:16:14 +03:00
Emmanuel Grumbach
6e55eed8f1 Merge remote-tracking branch 'wireless-next/master' into iwlwifi-next 2014-07-06 11:15:30 +03:00
Emmanuel Grumbach
44621b82aa Merge remote-tracking branch 'iwlwifi-fixes/master' into iwlwifi-next 2014-07-06 11:15:23 +03:00
Emmanuel Grumbach
dc271ee0d0 iwlwifi: mvm: disable CTS to Self
Firmware folks seem say that this flag can make trouble.
Drop it. The advantage of CTS to self is that it slightly
reduces the cost of the protection, but make the protection
less reliable.

Cc: <stable@vger.kernel.org> [3.13+]
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-03 20:55:18 +03:00
Emmanuel Grumbach
43d826ca59 iwlwifi: dvm: don't enable CTS to self
We should always prefer to use full RTS protection. Using
CTS to self gives a meaningless improvement, but this flow
is much harder for the firmware which is likely to have
issues with it.

CC: <stable@vger.kernel.org>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-07-03 14:59:38 +03:00
John W. Linville
5f4ef7197d Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next 2014-06-25 15:29:03 -04:00
David Spinadel
633e271326 mac80211: split sched scan IEs
Split sched scan IEs to band specific and not band specific
blocks. Common IEs blocks may be sent to the FW once per command,
instead of per band.

This allows optimization of size of the command, which may be
required by some drivers (eg. iwlmvm with newer firmware version).

As this changes the mac80211 API, update all drivers to use the
new version correctly, even if they don't (yet) make use of the
split data.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-06-25 09:10:43 +02:00
David Spinadel
c56ef67250 mac80211: support more than one band in scan request
Some drivers (such as iwlmvm) can handle multiple bands in a single
HW scan request. Add a HW flag to indicate that the driver support
this. To hold the required data, create a separate structure for
HW scan request that holds cfg scan request and data about
different parts of the scan IEs.

As this changes the mac80211 API, update all drivers using it to
use the correct new function type/argument.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-06-25 09:10:42 +02:00
Ilan Peer
e48393e8cf iwlwifi: mvm: Fix broadcast filtering
Current code did not allow sending the broadcast filtering command
for P2P Client interfaces. However, this was not enough, since once
broadcast filtering command was issued over the station interface
after the P2P Client connected, the command also attached the filters
to the P2P Client MAC which is not allowed (FW ASSERT 1063).

Fix this skipping P2P Client interfaces when constructing the broadcast
filtering command

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: ArikX Nemtsov <arik@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 22:41:38 +03:00
Arik Nemtsov
a42c9fcc4a Revert "iwlwifi: remove IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT flag"
This reverts commit dc9a19296a.

3610 cards don't support UAPSD.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 22:01:46 +03:00
Johannes Berg
c47af22ad6 iwlwifi: mvm: handle device start failures during restart
If the device fails during a restart, mac80211 now handles the
situation better but we still have a little bit of cleanup to
do in the driver - add the required code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: ArikX Nemtsov <arik@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:41 +03:00
Emmanuel Grumbach
75f6b9b64e iwlwivi: mvm: BT Coex - properly set the priority of beacons
Since the new API allows multiple priorities, we need to
properly set the beacon's prorities in the TX cmd associated
to it.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:40 +03:00
David Spinadel
1c87bbad43 iwlwifi: mvm: support extended beacon notification
Use extended beacon notification when supported by FW.
Set last beacon system time to AP or GO interface.
System time of last beacon can be used to avoid TBTT overlapping
between two interfaces, CSA and other uses.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:39 +03:00
Andrei Otcheretianski
09b0ce1a87 iwlwifi: mvm: Introduce an API to set STA_FLG_DISABLE_TX flag
Introduce new station flag STA_FLG_DISABLE_TX, which is modified with ADD_STA
command. This flag, when set, disables tx to the STA.
Provide an API (iwl_mvm_sta_modify_disable_tx) to modify this flag, which
should be used in channel switch and immediate quiet flows.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:39 +03:00
Eliad Peller
50675360a8 iwlwifi: mvm: disable beacon filtering escape timer in d0i3
The beacon filtering configuration in d0i3 currently uses
the max value defined as 1024. However, with beacon interval
of 100ms we end up with too-frequent wakeups.

Instead, configure the escape timer to 0, asking the fw
to disable it altogether.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:38 +03:00
Emmanuel Grumbach
34c8b24ff2 iwlwifi: mvm: BT Coex - avoid the shared antenna for management frames
If BT is active, we need to refrain from using the shared
antenna. This logic is done in the firmware when we use the
link quality tables. But for management frames, the rate is
written in the Tx command by the driver.
Hence the driver needs to make sure not use the shared
antenna when BT is active for any frames that don't use
the rate scale table such as management frames or multicast.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:37 +03:00
Emmanuel Grumbach
8286d9f50a iwlwifi: mvm: BT Coex - add reduced Tx power thresholds to constants
This really belongs to the constants file.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:36 +03:00
Emmanuel Grumbach
35fbf5d08e iwlwifi: mvm: BT Coex - don't limit rate control if TTC is on
When the firmware enables TxTxCorunning, we can lift the
constaints on the rate control.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:36 +03:00
Emmanuel Grumbach
7fa4fa0c44 iwlwifi: mvm: BT Coex - allow MIMO in more cases
We can Tx in MIMO rates when we are in TxTx Disallow mode
just like we can when we are in Tight mode.
Same if we are in 5Ghz regardless of the mode we are.
Change the code to allow MIMO in these cases.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:35 +03:00
Emmanuel Grumbach
a39979a8c3 iwlwifi: mvm: BT Coex - allow to force the antenna allocation
This can be used for testing.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:34 +03:00
Liad Kaufman
5daddc9902 iwlwifi: mvm: assure no overflows occur while reading otp
Just in case sizes change in the OTP without proper SW
updating, an additional check is inserted when reading OTP
sections to assure no overflows occur.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:34 +03:00
Liad Kaufman
f251c07c88 iwlwifi: nvm: update maximal parsed values in external nvm
Some of the maximum values of the parsed external NVM file
in the B-step of the 8000 HW family were updated, so this
updates these values.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:33 +03:00
Liad Kaufman
b513ee7fd6 iwlwifi: update trans->hw_rev 8000 hw family format
The format of the CSR_HW_REV register has changed in 8000
HW family. To keep backwards compatibility, we store the
value of this register as usual in trans->hw_rev, only we
store it in the old format in this variable.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:32 +03:00
Eran Harary
6a68a39fcd iwlwifi: mvm: fix bug in set_hw_address function
Don't use nvm_hw pointer if it is NULL. Print an error
message if the MAC address isn't valid.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:31 +03:00
Andy Lutomirski
c9e38e7709 iwlwifi: dvm: add a force_cam module parameter to fully disable power saving
iwldvm stalls are often blamed on power management.  Add an option
to force it all the way off.

Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:31 +03:00
Andy Lutomirski
f40faf6237 iwlwifi: pcie: improve debugfs queue info
This adds need_update and write_actual to rx_queue and need_update
and an HCMD indicator to tx_queue.

On my card, rx_queue now looks like:

read: 181
write: 180
write_actual: 176
need_update: 0
free_count: 40
closed_rb_num: 181

tx_queue now looks like:

hwq 00: read=29 write=30 use=1 stop=0 need_update=0
hwq 01: read=0 write=0 use=1 stop=0 need_update=0
hwq 02: read=128 write=128 use=1 stop=0 need_update=0
hwq 03: read=0 write=0 use=1 stop=0 need_update=0
hwq 04: read=94 write=94 use=1 stop=0 need_update=0 HCMD
hwq 05: read=0 write=0 use=0 stop=0 need_update=0
hwq 06: read=0 write=0 use=0 stop=0 need_update=0
hwq 07: read=0 write=0 use=0 stop=0 need_update=0
hwq 08: read=0 write=0 use=0 stop=0 need_update=0
hwq 09: read=0 write=0 use=0 stop=0 need_update=0
hwq 10: read=0 write=0 use=0 stop=0 need_update=0
hwq 11: read=0 write=0 use=0 stop=0 need_update=0
hwq 12: read=0 write=0 use=0 stop=0 need_update=0
hwq 13: read=0 write=0 use=0 stop=0 need_update=0
hwq 14: read=0 write=0 use=0 stop=0 need_update=0
hwq 15: read=0 write=0 use=0 stop=0 need_update=0
hwq 16: read=0 write=0 use=0 stop=0 need_update=0
hwq 17: read=0 write=0 use=0 stop=0 need_update=0
hwq 18: read=0 write=0 use=0 stop=0 need_update=0
hwq 19: read=0 write=0 use=0 stop=0 need_update=0

This may help with debugging queue stalls.

Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:30 +03:00
Andy Lutomirski
d536c32b45 iwlwifi: pcie: log when waking the NIC for hcmd submission fails
I've never seen this happen, but it's useful to rule it out.

Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:29 +03:00
David Spinadel
9ee6dace73 iwlwifi: fix NVM channel attribute map.
Fix NVM channel attributes. Add indoor-only and GO Concurrent
bits. Remove DFS channel bit which is overlapped with radar.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:29 +03:00
Eran Harary
52ab4c86a7 iwlwifi: mvm: fixes for 8000 NVM flow
The nvm_file should be loaded by default for SDIO
procucts only. Change the configuration accordingly.
While at it, fix a typo in the device name.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:28 +03:00
Emmanuel Grumbach
c2d202017d iwlwifi: pcie: add firmware monitor capabilities
This allows to use the firmware monitor. This capability
uses a lot of contiguous memory (up to 64MB), so make its
usage module parameter dependent.

The driver will try to allocate as much contiguous memory
as possible downgrading its requirements until the
allocation succeeds.

Dump this data into the fw-error dump file when an error
happens.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:27 +03:00
Emmanuel Grumbach
1fa1605648 iwlwifi: rename iwl_mvm_fw_error_next_data
This is not related to mvm. Rename to iwl_fw_error_next_data.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:26 +03:00
Emmanuel Grumbach
06ddbf5ada iwlwifi: add device / firmware to fw-error-dump file
This can be useful later for parsing since the parsing may
differ based on the device's family / bus.
Also add the human readable version of the firmware.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:26 +03:00
Eliad Peller
5788ab75ec iwlwifi: remove MCS32 support declaration
MCS32 is currently not supported, so don't
declare support for it.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:25 +03:00
David Spinadel
762533ba9c iwlwifi: mvm: don't use hardcoded num of scan channels
Use num of scan channels as advertised by fw TLV.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:55:24 +03:00
Oren Givon
b3c063ae72 iwlwifi: update the 7265 series HW IDs
Add one more 7265 series HW ID.
Edit one existing 7265 series HW ID.

CC: <stable@vger.kernel.org> [3.13+]
Signed-off-by: Oren Givon <oren.givon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 21:06:46 +03:00
Emmanuel Grumbach
35a4e18171 Merge remote-tracking branch 'iwlwifi-fixes/master' into iwlwifi-next 2014-06-24 15:05:09 +03:00
Johannes Berg
ab48003032 iwlwifi: mvm: add back support for low-priority scan
The low-priority scan feature can be useful, e.g. for OBSS
scans (if those are required by the AP); add back support
for it, restoring the maximum out time to the value it was
for low-priority scan before that was removed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 15:04:39 +03:00
David Spinadel
0564679bb6 iwlwifi: mvm: use ksize to memset scan_command
Use ksize to get scan command size instead of calculating it, to
avoid nasty bugs.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 15:04:14 +03:00
Emmanuel Grumbach
14ca0f389c iwlwifi: bump API version for 8000 devices
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 14:31:41 +03:00
Eliad Peller
89879413eb iwlwifi: mvm: rework sched scan channel configuration
The current sched scan channel configuration code
configures all the supported channels for scanning.

However, this can result in SYSASSERT in some cases,
when the configured channel is disabled.

Instead, configure only the channels given in the
req struct, and set the channel_count field appropriately.

While on it, change the code to use channel->hw_value
instead of recalculating the channel number.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-06-24 14:30:56 +03:00
Arik Nemtsov
999609f120 iwlwifi: mvm: remove vif argument from power_update_mac
The power update function looks at all current vifs to determine the power
policy. It doesn't use the current vif. Instead the value was overwritten
and used internally.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-22 10:11:17 +03:00
Emmanuel Grumbach
13b7232225 iwlwifi: mvm: make iwl_mvm_update_beacon_abort static
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-22 10:10:44 +03:00
Emmanuel Grumbach
1fa477c65a iwlwifi: mvm: remove debugfs hook for reduced tx power
This was not used is unlikely to be used, just kill it.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-22 10:02:44 +03:00
Emmanuel Grumbach
0f618e6ed0 iwlwifi: mvm: disable reduced Tx power when not applicable
I forgot to disable the reduced Tx power in a few paths.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-22 10:02:26 +03:00
Luciano Coelho
bca49d9a22 iwlwifi: mvm: pass force_assoc_off all the way down to avoid hacks
In some cases, we need to force the association to be off in the
MAC_CONTEXT_CMD command we send to the firmware.  Instead of having to
hack the vif->bss_conf.assoc value, pass it all the way down the call
chain.

Additionally, for the iwl_mvm_mac_ctxt_add() case, we *always* set
forced_assoc_off to true, so we can remove the hack in the d3 code
that was forcing it to off by hacking the bss_conf.assoc value.

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>
2014-05-21 12:52:44 +03:00
Avri Altman
fa7b2e7fd0 iwlwifi: mvm: don't filter out the first beacon
Enabling beacon filtering should be done only after a beacon
has been received. Doing that too early will cause
disconnections.
This has already been fixed, but the fix didn't take care
about the case where the beacon is received after the
association, it waited only for association which is not
enough.

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>
2014-05-21 12:51:21 +03:00
Emmanuel Grumbach
0ccab3db2b Merge remote-tracking branch 'iwlwifi-fixes/master' into iwlwifi-next
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

Conflicts:
	drivers/net/wireless/iwlwifi/mvm/mac80211.c
2014-05-21 12:49:38 +03:00
Emmanuel Grumbach
7bacc78227 iwlwifi: mvm: disable beacon filtering
This feature has been causing trouble - disable it for now.

Cc: <stable@vger.kernel.org> [3.13+]
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-05-21 12:45:34 +03:00
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
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
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
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