GitHub/moto-9609/android_kernel_motorola_exynos9610.git
10 years agoBluetooth: Move clock offset reading into hci_disconnect()
Johan Hedberg [Mon, 18 Aug 2014 17:33:34 +0000 (20:33 +0300)]
Bluetooth: Move clock offset reading into hci_disconnect()

To give all hci_disconnect() users the advantage of getting the clock
offset read automatically this patch moves the necessary code from
hci_conn_timeout() into hci_disconnect(). This way we pretty much always
update the clock offset when disconnecting.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Use hci_disconnect() for mgmt_disconnect_device()
Johan Hedberg [Mon, 18 Aug 2014 17:33:33 +0000 (20:33 +0300)]
Bluetooth: Use hci_disconnect() for mgmt_disconnect_device()

There's no reason to custom build the HCI_Disconnect command in the
Disconnect Device mgmt command handler. This patch updates the code to
use hci_disconnect() instead.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Update hci_disconnect() to return an error value
Johan Hedberg [Mon, 18 Aug 2014 17:33:32 +0000 (20:33 +0300)]
Bluetooth: Update hci_disconnect() to return an error value

We'll soon use hci_disconnect() from places that are interested to know
whether the hci_send_cmd() really succeeded or not. This patch updates
hci_disconnect() to pass on any error returned from hci_send_cmd().

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Fix SMP error and response to be mutually exclusive
Johan Hedberg [Mon, 18 Aug 2014 17:33:31 +0000 (20:33 +0300)]
Bluetooth: Fix SMP error and response to be mutually exclusive

Returning failure from the SMP data parsing function will cause an
immediate disconnect, making any attempts to send a response PDU futile.
This patch updates the function to always either send a response or
return an error, but never both at the same time:

* In the case that HCI_LE_ENABLED is not set we want to send a Pairing Not
  Supported response but it is not required to force a disconnection, so
  do not set the error return in this case.

* If we get garbage SMP data we can just fail with the handler function
  instead of also trying to send an SMP Failure PDU.

* There's no reason to force a disconnection if we receive an unknown SMP
  command. Instead simply send a proper Command Not Supported SMP
  response.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Remove unused l2cap_conn_shutdown API
Johan Hedberg [Mon, 18 Aug 2014 17:33:30 +0000 (20:33 +0300)]
Bluetooth: Remove unused l2cap_conn_shutdown API

Now that there are no more users of the l2cap_conn_shutdown API (since
smp.c switched to using hci_disconnect) we can simply remove it along
with all of it's l2cap_conn variables.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Use hci_disconnect for immediate disconnection from SMP
Johan Hedberg [Mon, 18 Aug 2014 17:33:29 +0000 (20:33 +0300)]
Bluetooth: Use hci_disconnect for immediate disconnection from SMP

Relying on the l2cap_conn_del procedure (triggered through the
l2cap_conn_shutdown API) to get the connection disconnected is not
reliable as it depends on all users releasing (through hci_conn_drop)
and that there's at least one user (so hci_conn_drop is called at least
one time).

A much simpler and more reliable solution is to call hci_disconnect()
directly from the SMP code when we want to disconnect. One side-effect
this has is that it prevents any SMP Failure PDU from being sent before
the disconnection, however neither one of the scenarios where
l2cap_conn_shutdown was used really requires this.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Set discon_timeout to 0 in l2cap_conn_del
Johan Hedberg [Mon, 18 Aug 2014 17:33:28 +0000 (20:33 +0300)]
Bluetooth: Set discon_timeout to 0 in l2cap_conn_del

When the l2cap_conn_del() function is used we do not want to wait around
"in case something happens" before disconnecting. This patch sets the
disconnection timeout to 0 so that the disconnection routines get
immediately scheduled.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Remove hci_conn_hold/drop from hci_chan
Johan Hedberg [Mon, 18 Aug 2014 17:33:27 +0000 (20:33 +0300)]
Bluetooth: Remove hci_conn_hold/drop from hci_chan

We can't have hci_chan contribute to the "active" reference counting of
the hci_conn since otherwise the connection would never get dropped when
there are no more users (since hci_chan would be counted as a user).
This patch removes hold() when creating the hci_chan and drop() when
destroying it.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Ignore incoming data after initiating disconnection
Johan Hedberg [Sun, 17 Aug 2014 21:41:44 +0000 (00:41 +0300)]
Bluetooth: Ignore incoming data after initiating disconnection

When hci_chan_del is called the disconnection routines get scheduled
through a workqueue. If there's any incoming ACL data before the
routines get executed there's a chance that a new hci_chan is created
and the disconnection never happens. This patch adds a new hci_conn flag
to indicate that we're in the process of driving the connection down. We
set the flag in hci_chan_del and check for it in hci_chan_create so that
no new channels are created for the same connection.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Set disc_timeout to 0 when calling hci_chan_del
Johan Hedberg [Sun, 17 Aug 2014 21:41:43 +0000 (00:41 +0300)]
Bluetooth: Set disc_timeout to 0 when calling hci_chan_del

The hci_chan_del() function is used in scenarios where we've decided we
want to get rid of the underlying baseband link. It makes therefore
sense to force the disc_timeout to 0 so that the disconnection routines
are immediately scheduled.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Fix hci_conn reference counting with hci_chan
Johan Hedberg [Sun, 17 Aug 2014 21:41:42 +0000 (00:41 +0300)]
Bluetooth: Fix hci_conn reference counting with hci_chan

The hci_chan_del() function was doing a hci_conn_drop() but there was no
matching hci_conn_hold() in the hci_chan_create() function. Furthermore,
as the hci_chan struct holds a pointer to the hci_conn there should be
proper use of hci_conn_get/put. This patch fixes both issues so that
hci_chan does correct reference counting of the hci_conn object.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Use zero timeout for immediate scheduling
Johan Hedberg [Sun, 17 Aug 2014 21:41:41 +0000 (00:41 +0300)]
Bluetooth: Use zero timeout for immediate scheduling

There's no point in passing a "small" timeout to queue_delayed_work() to
try to get the callback faster scheduled. Passing 0 is perfectly valid
and will cause a shortcut to a direct queue_work().

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Refactor connection parameter freeing into its own function
Johan Hedberg [Fri, 15 Aug 2014 18:06:59 +0000 (21:06 +0300)]
Bluetooth: Refactor connection parameter freeing into its own function

The necessary steps for freeing connection paramaters have grown quite a
bit so we can simplify the code by factoring it out into its own
function.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Fix using hci_conn_get() for hci_conn pointers
Johan Hedberg [Sun, 17 Aug 2014 20:28:57 +0000 (23:28 +0300)]
Bluetooth: Fix using hci_conn_get() for hci_conn pointers

Wherever we keep hci_conn pointers around we should be using
hci_conn_get/put to ensure that they stay valid. This patch fixes
all places violating against the principle currently.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Improve *_get() functions to return the object type
Johan Hedberg [Fri, 15 Aug 2014 18:06:57 +0000 (21:06 +0300)]
Bluetooth: Improve *_get() functions to return the object type

It's natural to have *_get() functions that increment the reference
count of an object to return the object type itself. This way it's
simple to make a copy of the object pointer and increase the reference
count in a single step. This patch updates two such get() functions,
namely hci_conn_get() and l2cap_conn_get(), and updates the users to
take advantage of the new API.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Optimize connection parameter lookup for LE connections
Johan Hedberg [Fri, 15 Aug 2014 18:06:56 +0000 (21:06 +0300)]
Bluetooth: Optimize connection parameter lookup for LE connections

When we get an LE connection complete event there's really no reason to
look through the entire connection parameter list as the entry should be
present in the hdev->pend_le_conns list too. This patch changes the
lookup code to do a more restricted lookup only in the pend_le_conns
list.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Set addr_type only when it's needed
Johan Hedberg [Fri, 15 Aug 2014 18:06:55 +0000 (21:06 +0300)]
Bluetooth: Set addr_type only when it's needed

In the hci_le_conn_complete_evt() function there's no need to set the
addr_type value until it's actually needed, i.e. for the black list
lookup. This patch moves the code a bit further down in the function.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Fix hci_conn reference counting for fixed channels
Johan Hedberg [Fri, 15 Aug 2014 18:17:06 +0000 (21:17 +0300)]
Bluetooth: Fix hci_conn reference counting for fixed channels

Now that SMP has been converted to use fixed channels we've got a bit of
a problem with the hci_conn reference counting. So far the L2CAP code
has kept a reference for each L2CAP channel that was notified of the
connection. With SMP however this would mean that the connection is
never dropped even though there are no other users of it. Furthermore,
SMP already does its own hci_conn reference counting internally,
starting from a security or pairing request and ending with the key
distribution.

This patch makes L2CAP fixed channels default to the L2CAP core not
keeping a hci_conn reference for them. A new FLAG_HOLD_HCI_CONN flag is
added so that L2CAP users can declare an exception to this rule and hold
a reference even for their fixed channels. One such exception is the
L2CAP socket layer which does want a reference for each socket (e.g. an
ATT socket which uses a fixed channel).

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Remove unnecessary l2cap_chan_unlock before l2cap_chan_add
Johan Hedberg [Fri, 15 Aug 2014 18:06:52 +0000 (21:06 +0300)]
Bluetooth: Remove unnecessary l2cap_chan_unlock before l2cap_chan_add

The l2cap_chan_add() function doesn't require the channel to be
unlocked. It only requires the l2cap_conn to be unlocked. Therefore,
it's unnecessary to unlock a channel before calling l2cap_chan_add().
This patch removes such unnecessary unlocking from the
l2cap_chan_connect() function.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
10 years agoBluetooth: Fix incorrect LE CoC PDU length restriction based on HCI MTU
Johan Hedberg [Fri, 15 Aug 2014 18:06:51 +0000 (21:06 +0300)]
Bluetooth: Fix incorrect LE CoC PDU length restriction based on HCI MTU

The l2cap_create_le_flowctl_pdu() function that l2cap_segment_le_sdu()
calls is perfectly capable of doing packet fragmentation if given bigger
PDUs than the HCI buffers allow. Forcing the PDU length based on the HCI
MTU (conn->mtu) would therefore needlessly strict operation on hardware
with limited LE buffers (e.g. both Intel and Broadcom seem to have this
set to just 27 bytes).

This patch removes the restriction and makes it possible to send PDUs of
the full length that the remote MPS value allows.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
10 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville [Mon, 8 Sep 2014 15:14:56 +0000 (11:14 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless

10 years agoath5k: added debugfs file for dumping eeprom
Jade Bilkey [Sat, 30 Aug 2014 19:14:14 +0000 (15:14 -0400)]
ath5k: added debugfs file for dumping eeprom

Signed-off-by: Jade Bilkey <herself@thefumon.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agobcma: get info about flash type SoC booted from
Rafał Miłecki [Wed, 3 Sep 2014 08:35:13 +0000 (10:35 +0200)]
bcma: get info about flash type SoC booted from

There is an ongoing work on cleaning MIPS's nvram support so it could be
re-used on other platforms (bcm53xx to say precisely).
This will require a bit of extra logic in bcma this patch implements.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoMerge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi...
John W. Linville [Thu, 4 Sep 2014 17:45:56 +0000 (13:45 -0400)]
Merge branch 'for-john' of git://git./linux/kernel/git/iwlwifi/iwlwifi-next

10 years agoMerge tag 'mac80211-next-for-john-2014-08-29' of git://git.kernel.org/pub/scm/linux...
John W. Linville [Thu, 4 Sep 2014 17:41:33 +0000 (13:41 -0400)]
Merge tag 'mac80211-next-for-john-2014-08-29' of git://git./linux/kernel/git/jberg/mac80211-next

Johannes Berg <johannes@sipsolutions.net> says:

"Not that much content this time. Some RCU cleanups, crypto
performance improvements, and various patches all over,
rather than listing them one might as well look into the
git log instead."

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Conflicts:
drivers/net/wireless/ath/wil6210/wmi.c

10 years agoMerge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi...
John W. Linville [Thu, 4 Sep 2014 17:12:02 +0000 (13:12 -0400)]
Merge branch 'for-john' of git://git./linux/kernel/git/iwlwifi/iwlwifi-fixes

10 years agoMerge tag 'mac80211-for-john-2014-08-29' of git://git.kernel.org/pub/scm/linux/kernel...
John W. Linville [Thu, 4 Sep 2014 17:08:24 +0000 (13:08 -0400)]
Merge tag 'mac80211-for-john-2014-08-29' of git://git./linux/kernel/git/jberg/mac80211

Johannes Berg <johannes@sipsolutions.net> says:

"Here are a few fixes for mac80211. One has been discussed for a while
and adds a terminating NUL-byte to the alpha2 sent to userspace, which
shouldn't be necessary but since many places treat it as a string we
couldn't move to just sending two bytes.

In addition to that, we have two VLAN fixes from Felix, a mesh fix, a
fix for the recently introduced RX aggregation offload, a revert for
a broken patch (that luckily didn't really cause any harm) and a small
fix for alignment in debugfs."

Signed-off-by: John W. Linville <linville@redhat.com>
10 years agoiwlwifi: mvm: clean up AUX station handling
Johannes Berg [Mon, 4 Aug 2014 12:14:14 +0000 (14:14 +0200)]
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>
10 years agoiwlwifi: mvm: clean up broadcast station handling
Johannes Berg [Mon, 4 Aug 2014 11:38:48 +0000 (13:38 +0200)]
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>
10 years agoiwlwifi: mvm: use iwl_mvm_mac_get_queues_mask() more
Johannes Berg [Fri, 1 Aug 2014 21:14:24 +0000 (23:14 +0200)]
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>
10 years agoiwlwifi: mvm: use tdls indication from mac80211
Johannes Berg [Mon, 4 Aug 2014 12:33:42 +0000 (14:33 +0200)]
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>
10 years agoiwlwifi: mvm: clarify stop_count, remove transport_stopped
Johannes Berg [Fri, 1 Aug 2014 16:14:45 +0000 (18:14 +0200)]
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>
10 years agoiwlwifi: mvm: clean up FIFO definitions
Johannes Berg [Fri, 1 Aug 2014 18:48:25 +0000 (20:48 +0200)]
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>
10 years agoiwlwifi: mvm: correct firmware disassoc command sequence
Johannes Berg [Mon, 11 Aug 2014 19:37:30 +0000 (21:37 +0200)]
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>
10 years agoiwlwifi: mvm: set the TX disable bit when doing a chanctx switch
Luciano Coelho [Thu, 8 May 2014 13:03:39 +0000 (16:03 +0300)]
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>
10 years agoiwlwifi: add Intel Mobile Communications copyright
Johannes Berg [Thu, 24 Jul 2014 12:05:26 +0000 (14:05 +0200)]
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>
10 years agoiwlwifi: trans: configure the scheduler enable register
Avri Altman [Thu, 24 Jul 2014 16:25:10 +0000 (19:25 +0300)]
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>
10 years agoiwlwifi: trans: make aggregation explicit for TX queue handling
Johannes Berg [Fri, 1 Aug 2014 11:33:46 +0000 (13:33 +0200)]
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>
10 years agoiwlwifi: trans: allow skipping scheduler hardware config
Johannes Berg [Fri, 1 Aug 2014 10:17:40 +0000 (12:17 +0200)]
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>
10 years agoiwlwifi: mvm: fix comment typo
Eran Harary [Mon, 4 Aug 2014 09:21:05 +0000 (12:21 +0300)]
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>
10 years agoiwlwifi: don't export tracepoints unnecessarily
Johannes Berg [Tue, 5 Aug 2014 08:36:54 +0000 (10:36 +0200)]
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>
10 years agoiwlwifi: mvm: add some debugging to quota allocation
Johannes Berg [Mon, 4 Aug 2014 14:39:54 +0000 (16:39 +0200)]
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>
10 years agoiwlwifi: mvm: enable passive fragmented scan changes
David Spinadel [Tue, 22 Jul 2014 10:11:18 +0000 (13:11 +0300)]
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>
10 years agoiwlwifi: trans: refactor txq_enable arguments
Johannes Berg [Fri, 1 Aug 2014 09:58:47 +0000 (11:58 +0200)]
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>
10 years agoiwlwifi: consolidate hw scheduler configuration code
Avri Altman [Mon, 14 Jul 2014 06:40:27 +0000 (09:40 +0300)]
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>
10 years agoiwlwifi: mvm: wait for TE notif when protecting TDLS session
Liad Kaufman [Sun, 6 Jul 2014 14:14:39 +0000 (17:14 +0300)]
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>
10 years agoiwlwifi: mvm: add option that allows a vif to disable PS
Luciano Coelho [Fri, 8 Aug 2014 16:50:46 +0000 (19:50 +0300)]
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>
10 years agoiwlwifi: mvm: add function to update only ps
Luciano Coelho [Fri, 8 Aug 2014 16:18:35 +0000 (19:18 +0300)]
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>
10 years agoiwlwifi: mvm: refactor iwl_mvm_power_set_pm() to spin the ps part off
Luciano Coelho [Fri, 8 Aug 2014 15:36:22 +0000 (18:36 +0300)]
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>
10 years agoiwlwifi: mvm: re-enable ps when monitor interfaces are removed
Luciano Coelho [Fri, 8 Aug 2014 14:12:07 +0000 (17:12 +0300)]
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>
10 years agoiwlwifi: mvm: clear d0i3 state on recovery
Eliad Peller [Sun, 10 Aug 2014 14:00:15 +0000 (17:00 +0300)]
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>
10 years agoiwlwifi: mvm: disable tx aggregation on low latency vifs
Eyal Shapira [Wed, 27 Aug 2014 23:21:05 +0000 (02:21 +0300)]
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>
10 years agoiwlwifi: mvm: add debugfs entry for ps_disabled
Luciano Coelho [Thu, 7 Aug 2014 15:08:56 +0000 (18:08 +0300)]
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>
10 years agoiwlwifi: make U-APSD default configurable at compile time
Johannes Berg [Mon, 1 Sep 2014 09:28:11 +0000 (11:28 +0200)]
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>
10 years agoiwlwifi: mvm: fix the dump_umac_error_log
Eran Harary [Sun, 24 Aug 2014 05:02:46 +0000 (08:02 +0300)]
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>
10 years agoiwlwifi: mvm: Add marker command 0xcb
Matti Gottlieb [Mon, 25 Aug 2014 11:41:23 +0000 (14:41 +0300)]
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>
10 years agoiwlwifi: mvm: don't run automatic checks if CT was caused by debugfs
Luciano Coelho [Wed, 20 Aug 2014 14:58:20 +0000 (17:58 +0300)]
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>
10 years agoiwlwifi: mvm: reset the temperature when temperature test is disabled
Luciano Coelho [Wed, 20 Aug 2014 14:26:58 +0000 (17:26 +0300)]
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>
10 years agoiwlwifi: mvm: force protection for P2P
Emmanuel Grumbach [Thu, 31 Jul 2014 10:58:53 +0000 (13:58 +0300)]
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>
10 years agoiwlwifi: mvm: add use_ps-poll debugfs power option
Eliad Peller [Wed, 30 Jul 2014 12:42:19 +0000 (15:42 +0300)]
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>
10 years agoiwlwifi: mvm: use dynamic SMPS for P2P Client
Emmanuel Grumbach [Wed, 30 Jul 2014 12:56:42 +0000 (15:56 +0300)]
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>
10 years agoiwlwifi: mvm: reduce the AMPDU size in low latency mode
Emmanuel Grumbach [Mon, 28 Jul 2014 09:59:45 +0000 (12:59 +0300)]
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>
10 years agoiwlwifi: mvm: Add set NIC temperature debug option
Matti Gottlieb [Thu, 17 Jul 2014 13:41:14 +0000 (16:41 +0300)]
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>
10 years agoiwlwifi: bump firmware API version to 10 for 7000 and 8000
Emmanuel Grumbach [Mon, 1 Sep 2014 06:50:14 +0000 (09:50 +0300)]
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>
10 years agoiwlwifi: Remove module build requirement for Intel Wireless WiFi
Marcel Holtmann [Mon, 11 Aug 2014 20:11:35 +0000 (22:11 +0200)]
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: ae7486a2b734 ("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>
10 years agoRevert "iwlwifi: dvm: don't enable CTS to self"
Emmanuel Grumbach [Sun, 31 Aug 2014 19:11:11 +0000 (22:11 +0300)]
Revert "iwlwifi: dvm: don't enable CTS to self"

This reverts commit 43d826ca5979927131685cc2092c7ce862cb91cd.

This commit caused packet loss.

Cc: <stable@vger.kernel.org>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
10 years agonet: rfkill: gpio: Add more Broadcom bluetooth ACPI IDs
Mika Westerberg [Tue, 19 Aug 2014 12:41:32 +0000 (15:41 +0300)]
net: rfkill: gpio: Add more Broadcom bluetooth ACPI IDs

This adds one more ACPI ID of a Broadcom bluetooth chip.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
10 years agomac80211: fix chantype recalc warning
Michal Kazior [Mon, 28 Jul 2014 13:16:59 +0000 (15:16 +0200)]
mac80211: fix chantype recalc warning

When a device driver is unloaded local->interfaces
list is cleared. If there was more than 1
interface running and connected (bound to a
chanctx) then chantype recalc was called and it
ended up with compat being NULL causing a call
trace warning.

Warn if compat becomes NULL as a result of
incompatible bss_conf.chandef of interfaces bound
to a given channel context only.

The call trace looked like this:

 WARNING: CPU: 2 PID: 2594 at /devel/src/linux/net/mac80211/chan.c:557 ieee80211_recalc_chanctx_chantype+0x2cd/0x2e0()
 Modules linked in: ath10k_pci(-) ath10k_core ath
 CPU: 2 PID: 2594 Comm: rmmod Tainted: G        W     3.16.0-rc1+ #150
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
  0000000000000009 ffff88001ea279c0 ffffffff818dfa93 0000000000000000
  ffff88001ea279f8 ffffffff810514a8 ffff88001ce09cd0 ffff88001e03cc58
  0000000000000000 ffff88001ce08840 ffff88001ce09cd0 ffff88001ea27a08
 Call Trace:
  [<ffffffff818dfa93>] dump_stack+0x4d/0x66
  [<ffffffff810514a8>] warn_slowpath_common+0x78/0xa0
  [<ffffffff81051585>] warn_slowpath_null+0x15/0x20
  [<ffffffff818a407d>] ieee80211_recalc_chanctx_chantype+0x2cd/0x2e0
  [<ffffffff818a3dda>] ? ieee80211_recalc_chanctx_chantype+0x2a/0x2e0
  [<ffffffff818a4919>] ieee80211_assign_vif_chanctx+0x1a9/0x770
  [<ffffffff818a6220>] __ieee80211_vif_release_channel+0x70/0x130
  [<ffffffff818a6dd3>] ieee80211_vif_release_channel+0x43/0xb0
  [<ffffffff81885f4e>] ieee80211_stop_ap+0x21e/0x5a0
  [<ffffffff8184b9b5>] __cfg80211_stop_ap+0x85/0x520
  [<ffffffff8181c188>] __cfg80211_leave+0x68/0x120
  [<ffffffff8181c268>] cfg80211_leave+0x28/0x40
  [<ffffffff8181c5f3>] cfg80211_netdev_notifier_call+0x373/0x6b0
  [<ffffffff8107f965>] notifier_call_chain+0x55/0x110
  [<ffffffff8107fa41>] raw_notifier_call_chain+0x11/0x20
  [<ffffffff816a8dc0>] call_netdevice_notifiers_info+0x30/0x60
  [<ffffffff816a8eb9>] __dev_close_many+0x59/0xf0
  [<ffffffff816a9021>] dev_close_many+0x81/0x120
  [<ffffffff816aa1c5>] rollback_registered_many+0x115/0x2a0
  [<ffffffff816aa3a6>] unregister_netdevice_many+0x16/0xa0
  [<ffffffff8187d841>] ieee80211_remove_interfaces+0x121/0x1b0
  [<ffffffff8185e0e6>] ieee80211_unregister_hw+0x56/0x110
  [<ffffffffa0011ac4>] ath10k_mac_unregister+0x14/0x60 [ath10k_core]
  [<ffffffffa0014fe7>] ath10k_core_unregister+0x27/0x40 [ath10k_core]
  [<ffffffffa003b1f4>] ath10k_pci_remove+0x44/0xa0 [ath10k_pci]
  [<ffffffff81373138>] pci_device_remove+0x28/0x60
  [<ffffffff814cb534>] __device_release_driver+0x64/0xd0
  [<ffffffff814cbcc8>] driver_detach+0xb8/0xc0
  [<ffffffff814cb23a>] bus_remove_driver+0x4a/0xb0
  [<ffffffff814cc697>] driver_unregister+0x27/0x50

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
10 years agocarl9170: tx: Replace rcu_assign_pointer() with RCU_INIT_POINTER()
Andreea-Cristina Bernat [Wed, 27 Aug 2014 13:27:30 +0000 (16:27 +0300)]
carl9170: tx: Replace rcu_assign_pointer() with RCU_INIT_POINTER()

According to RCU_INIT_POINTER()'s block comment 3.a, it can be used if
"3.   The referenced data structure has already been exposed to readers either
at compile time or via rcu_assign_pointer() -and-
 a.   You have not made -any- reader-visible changes to this structure since
then".

This case fulfills the conditions above because between the rcu_dereference()
call (cvif = rcu_dereference(ar->beacon_iter);) and the rcu_assign_pointer()
call there is no update of the "cvif" variable.
Therefore, this patch makes the replacement.

The following Coccinelle semantic patch was used:
@@
identifier v;
@@

v = rcu_dereference(...);
... when != rcu_dereference(...);
    when != v = ...;
    when != (<+...v...+>)++;
    when != \(memcpy\|memset\)(...);
(
- rcu_assign_pointer
+ RCU_INIT_POINTER
  (..., v);
|
 if(...) {
... when != v = ...;
- rcu_assign_pointer
+ RCU_INIT_POINTER
  (..., v);
... when any
 }
)

Because there are cases where between a “rcu_dereference()” call and a
“rcu_assign_pointer()” call might be updates of the value that interests us,
the Coccinelle semantic patch ignores them and replaces with
"RCU_INIT_POINTER()" only when the update is not happening.

Signed-off-by: Andreea-Cristina Bernat <bernat.ada@gmail.com>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Fix channel context timer
Sujith Manoharan [Wed, 27 Aug 2014 06:37:25 +0000 (12:07 +0530)]
ath9k: Fix channel context timer

Setup the channel context correctly. Not doing this was
causing beacon loss in a P2P-GO/STA concurrent setup.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Add more debug statements for channel context
Sujith Manoharan [Wed, 27 Aug 2014 06:37:24 +0000 (12:07 +0530)]
ath9k: Add more debug statements for channel context

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Disable fastcc for channel context mode
Sujith Manoharan [Wed, 27 Aug 2014 06:37:23 +0000 (12:07 +0530)]
ath9k: Disable fastcc for channel context mode

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agort2x00: support Ralink 5362.
Canek Peláez Valdés [Mon, 25 Aug 2014 00:06:11 +0000 (19:06 -0500)]
rt2x00: support Ralink 5362.

Signed-off-by: Canek Peláez Valdés <canek@ciencias.unam.mx>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Fix channel context creation
Sujith Manoharan [Sun, 24 Aug 2014 15:46:13 +0000 (21:16 +0530)]
ath9k: Fix channel context creation

If a new context is being added in addition to the current one,
then send the ASSIGN event to abort a running scan since
the addition of a context is usually followed by VIF
assignment and further operations.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Fix interface limits
Sujith Manoharan [Sun, 24 Aug 2014 15:46:12 +0000 (21:16 +0530)]
ath9k: Fix interface limits

There is no reason why managed/p2p interfaces have to
be limited to one. IBSS is the only type that needs
a restriction.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Print the event/state in ath_chanctx_event
Sujith Manoharan [Sun, 24 Aug 2014 15:46:11 +0000 (21:16 +0530)]
ath9k: Print the event/state in ath_chanctx_event

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Add new chanctx events
Sujith Manoharan [Sun, 24 Aug 2014 15:46:10 +0000 (21:16 +0530)]
ath9k: Add new chanctx events

This will be useful in handling addition/change of new
channel contexts.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Fix ath_chanctx_get()
Sujith Manoharan [Sat, 23 Aug 2014 13:42:16 +0000 (19:12 +0530)]
ath9k: Fix ath_chanctx_get()

Move it inside a CONFIG_ATH9K_CHANNEL_CONTEXT ifdef
since it is not needed otherwise.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Move ath9k_beacon_add_noa to channel.c
Sujith Manoharan [Sat, 23 Aug 2014 13:42:15 +0000 (19:12 +0530)]
ath9k: Move ath9k_beacon_add_noa to channel.c

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Remove redundant ifdef
Sujith Manoharan [Sat, 23 Aug 2014 13:42:14 +0000 (19:12 +0530)]
ath9k: Remove redundant ifdef

This was introduced in an earlier patch to handle
a compilation warning, but since the channel context
code has been mostly isolated, this is not required now.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Fix channel context variables in ath_softc
Sujith Manoharan [Sat, 23 Aug 2014 13:42:13 +0000 (19:12 +0530)]
ath9k: Fix channel context variables in ath_softc

chanctx_work and next_chan are required only when
CONFIG_ATH9K_CHANNEL_CONTEXT is enabled.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Fix 'offchannel' in ath_softc
Sujith Manoharan [Sat, 23 Aug 2014 07:59:23 +0000 (13:29 +0530)]
ath9k: Fix 'offchannel' in ath_softc

Finally move the 'offchannel' instance in ath_softc
inside a CONFIG_ATH9K_CHANNEL_CONTEXT cage. The offchannel
usage in ath9k_calculate_iter_data() is closed off with
an ifdef for now, since the state/opmode calculation is
common for both the channel context mode and the normal mode.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Fix function argument type
Sujith Manoharan [Sat, 23 Aug 2014 07:59:22 +0000 (13:29 +0530)]
ath9k: Fix function argument type

ath9k_vif_iter() was earlier used as an iterator
routine when calling a mac80211 utility. This is no
longer the case and hence we can mention the argument
type explicitly.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Use ath_chanctx_check_active properly
Sujith Manoharan [Sat, 23 Aug 2014 07:59:21 +0000 (13:29 +0530)]
ath9k: Use ath_chanctx_check_active properly

ath_chanctx_check_active() is required only when channel contexts
are used. Make sure that it is not called in normal usage.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Add ath9k_offchannel_init
Sujith Manoharan [Sat, 23 Aug 2014 07:59:20 +0000 (13:29 +0530)]
ath9k: Add ath9k_offchannel_init

This patch adds a routine to setup the offchannel
instance in ath_softc.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Add ath9k_chanctx_wake_queues
Sujith Manoharan [Sat, 23 Aug 2014 07:59:19 +0000 (13:29 +0530)]
ath9k: Add ath9k_chanctx_wake_queues

Introduce a function that handles queues in channel
context mode.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Add wrappers for beacon events
Sujith Manoharan [Sat, 23 Aug 2014 07:59:18 +0000 (13:29 +0530)]
ath9k: Add wrappers for beacon events

Using these wrappers allows us to move the 'sched'
variable in ath_softc inside CONFIG_ATH9K_CHANNEL_CONTEXT.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Fix function declarations
Sujith Manoharan [Sat, 23 Aug 2014 07:59:17 +0000 (13:29 +0530)]
ath9k: Fix function declarations

These routines are required only when
CONFIG_ATH9K_CHANNEL_CONTEXT is enabled.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Fix channel context events
Sujith Manoharan [Sat, 23 Aug 2014 07:59:16 +0000 (13:29 +0530)]
ath9k: Fix channel context events

Check if channel context usage is enabled before
calling ath_chanctx_event() from various parts of the
driver. Also, make sure that ath_chanctx_event() is
compiled only when CONFIG_ATH9K_CHANNEL_CONTEXT is
enabled.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Make ath_chanctx_switch static
Sujith Manoharan [Sat, 23 Aug 2014 07:59:15 +0000 (13:29 +0530)]
ath9k: Make ath_chanctx_switch static

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Make ath_chanctx_get_oper_chan static
Sujith Manoharan [Sat, 23 Aug 2014 07:59:14 +0000 (13:29 +0530)]
ath9k: Make ath_chanctx_get_oper_chan static

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Make ath_chanctx_offchan_switch static
Sujith Manoharan [Sat, 23 Aug 2014 07:59:13 +0000 (13:29 +0530)]
ath9k: Make ath_chanctx_offchan_switch static

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Conditionally compile more functions
Sujith Manoharan [Sat, 23 Aug 2014 07:59:12 +0000 (13:29 +0530)]
ath9k: Conditionally compile more functions

Use CONFIG_ATH9K_CHANNEL_CONTEXT to exclude:

ath_scan_complete()
ath_roc_complete()
ath_offchannel_next()
ath_scan_next_channel()
ath_scan_channel_duration()

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Exclude more functions
Sujith Manoharan [Sat, 23 Aug 2014 07:59:11 +0000 (13:29 +0530)]
ath9k: Exclude more functions

Use CONFIG_ATH9K_CHANNEL_CONTEXT to exclude more functions:

ath_offchannel_channel_change()
ath_scan_channel_start()
ath_scan_send_probe()

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Conditionally compile a few functions
Sujith Manoharan [Sat, 23 Aug 2014 07:59:10 +0000 (13:29 +0530)]
ath9k: Conditionally compile a few functions

Exclude these functions when CONFIG_ATH9K_CHANNEL_CONTEXT is not
enabled:

ath_chanctx_send_vif_ps_frame()
ath_chanctx_send_ps_frame()
ath_chanctx_defer_switch()
ath_chanctx_set_next()

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Cleanup mgd_prepare_tx callback
Sujith Manoharan [Sat, 23 Aug 2014 07:59:09 +0000 (13:29 +0530)]
ath9k: Cleanup mgd_prepare_tx callback

Rename the callback from ath9k_chanctx_force_active()
to ath9k_mgd_prepare_tx(). Also, move it to main.c and
group it with the other callbacks.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Make ath_chanctx_work static
Sujith Manoharan [Sat, 23 Aug 2014 07:59:08 +0000 (13:29 +0530)]
ath9k: Make ath_chanctx_work static

Also compile it conditionally based on
CONFIG_ATH9K_CHANNEL_CONTEXT.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Add a routine to tear down channel contexts
Sujith Manoharan [Sat, 23 Aug 2014 07:59:07 +0000 (13:29 +0530)]
ath9k: Add a routine to tear down channel contexts

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agoath9k: Add a routine for initializing channel contexts
Sujith Manoharan [Sat, 23 Aug 2014 07:59:06 +0000 (13:29 +0530)]
ath9k: Add a routine for initializing channel contexts

Setup the offchannel/sched timers and the chanctx work
inside the new function.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
10 years agocarl9170: Remove redundant protection check
Andreea-Cristina Bernat [Fri, 22 Aug 2014 19:14:31 +0000 (22:14 +0300)]
carl9170: Remove redundant protection check

The carl9170_op_ampdu_action() function is used only by the mac80211
framework.
Since the mac80211 already takes care of checks and properly serializing
calls to the driver's function there is no need for the driver to do the same
thing.

Signed-off-by: Andreea-Cristina Bernat <bernat.ada@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>