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: NAvri Altman <avri.altman@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NLiad Kaufman <liad.kaufman@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NLuciano Coelho <luciano.coelho@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NLuciano Coelho <luciano.coelho@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NLuciano Coelho <luciano.coelho@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NLuciano Coelho <luciano.coelho@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NEliad Peller <eliadx.peller@intel.com>
Reviewed-by: NGregory Greenman <gregory.greenman@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NEyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NLuciano Coelho <luciano.coelho@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

1. the base_address limitation was wrong, address can be bigger than
0x80C000
2. the ucode data_struct changed.
Signed-off-by: NEran Harary <eran.harary@intel.com>
Reviewed-by: NLiad Kaufman <liad.kaufman@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NMatti Gottlieb <matti.gottlieb@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NLuciano Coelho <luciano.coelho@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NLuciano Coelho <luciano.coelho@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Performance is less an issue in P2P and reliability
is critical. Enable protection always for P2P.
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NEliad Peller <eliadx.peller@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

This allows to force the GO to use protection and enhances
the reliability of the link.
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Add ability to set the NIC's temperature and ignore the actual temperature
that the FW supplies.
Signed-off-by: NMatti Gottlieb <matti.gottlieb@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NBenoit Taine <benoit.taine@lip6.fr>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>

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: NPeer, Ilan <ilan.peer@intel.com>
Signed-off-by: NArik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NEran Harary <eran.harary@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Add the Control Status Registers to the firmware error dump
infrastructure.
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Use the fw-error-dump infrastructure to dump the periphery
registers. Only certain ranges are readable, so dump only
these.
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

modinfo and kerneldoc disagreed on the meaning of this field.
Reported-by: NAndrea Oliveri <oliveriandrea@gmail.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NEran Harary <eran.harary@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NEliad Peller <eliad@wizery.com>
Reviewed-by: NArikX Nemtsov <arik@wizery.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Leave it to default instead - regardless of the BT activity.
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NAriej Marjieh <ariej.marjieh@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NAriej Marjieh <ariej.marjieh@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Enabling the Aux queue and mapping it to FIFO 5.
Defining the Aux queue for the Aux station.
Signed-off-by: NAriej Marjieh <ariej.marjieh@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NEliad Peller <eliadx.peller@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NEytan Lifshitz <eytan.lifshitz@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NEliad Peller <eliadx.peller@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Instead of code the fixed values, use a C99 initializer.
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

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: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
[ Commit message + other fixes ]
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>