Now that PCIe knows how to create A-MSDUs, use this
capability and prepare SKBs that are large enough to
build an A-MSDU.
Advertise TSO support towards the network stack and
segment the packet with gso_size set to be the maximal
A-MSDU length (after having taken the headers to be added
into account) to make sure that the skb that is passed
down to the transport are not longer than the maximal
A-MSDU allowed.
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The firmware handles the VHT MU-MIMO group data on its own.
However, on HW restart (and future sniffer mode) the driver
shall update the firmware on the VHT MU-MIMO group membership
status.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Incoming hardware will support VHT MU-MIMO. Declare this
capability for relevant hardware.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

A curly brace was misplaced, fix this.
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Working with MSIX requires prior configuration.
This includes requesting interrupt vectors from the OS,
registering the vectors and mapping the optional causes to the
relevant interrupt. In addition add new interrupt handler
to handle MSIX interrupt.
Signed-off-by: NHaim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Instead of waking up the device each time we write a
register, wake it up once, and writes the registers
at once.
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The driver is now ready to handle this firmware.
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Klocwork is unhappy as ht_vht_rates might be accessed with
rate->index being set to values between 0 and 3 which will
lead to accessing uninitialized array elements. Effectively this
doesn't happen as in HT/VHT we're not using these rate indices.
Still fix this.
Signed-off-by: NEyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The firmware doesn't send match found notifications when no matchsets
are passed.  This makes sense because if there are no matchsets,
nothing can be matched.  But the nl80211 API should report when there
are results available, even if no matchsets were passed.

To handle this, we can use the firmware's ITERATION_COMPLETE
reporting, which will send us notifications every time it completed a
scheduled scan iteration.  Then we can set a flag when we received
beacons and use that to report that results are available.
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The initialization and copying of the RSS secret key
should not use ARRAY_SIZE as we need to initialize a
dword array, and not a byte array.
Fix also the hook maximum write size to allow writing
a longer table - up to full indirection table size.

Fixes: 43413a97("iwlwifi: mvm: support rss queues configuration command")
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The 9000 series uses a diffrent sized descriptor. Update the
relevant tracing field.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Register cooling device in order to have the Thermal
Manager handle the device's power budget according to the sent
notifications.
The interface adds a new thermal cooling device to
/sys/class/thermal/ folder.
Signed-off-by: NChaya Rachel Ivgi <chaya.rachel.ivgi@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Register to thermal_zone interface and implement the
thermal ops.
The thermal handles the device throttling, and sets the
the temperature thresholds the Thermal Manager would be
notified of crossing.
The thermal interface adds a new thermal zone device sensor
under /sys/class/thermal/ folder.
Signed-off-by: NChaya Rachel Ivgi <chaya.rachel.ivgi@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Up to today the driver was notified of the temperature from the FW
and decided whether to enter CT-kill or not.
From now on, the FW will decide when to enter CT-kill and will notify
the driver.
Add support for this notification.
Signed-off-by: NChaya Rachel Ivgi <chaya.rachel.ivgi@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Since the PNs of all the tx keys are now tracked in the public
part of the key struct (with atomic counter), we no longer
need these functions.

dvm and vt665{5,6} are currently the only users of these functions,
so update them accordingly.
Signed-off-by: NEliad Peller <eliadx.peller@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

If protocol offloading is configured, the fw might generate some
frames (e.g. arp response) on its own during d3/d0i3.

On d3/d0i3 exit the driver queries the updated PN (if relevant),
and updates its keys (for the d0i3 case, this is done by
iwl_mvm_d0i3_exit_work(), which is scheduled on d0i3 exit)

While in d0i3, iwlmvm defers tx frames until d0i3 exit, and
then continues their processing.

This is problematic with TKIP, since the frame's PN has already
been set at this stage (in contrast to CCMP, where the PN is
being set only later on), so both the frame's PN and the upcoming
PN update (from d0i3 exit work) might be wrong.

Fix it by moving the TX PN assignment (for TKIP) to the driver,
similarly to CCMP.
Signed-off-by: NEliad Peller <eliadx.peller@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>

The iwl_trans_pcie_start_fw() function may return the positive value EIO
instead of -EIO in case of error.
Signed-off-by: NAnton Protopopov <a.s.protopopov@gmail.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

When we load the firmware, we hold trans_pcie->mutex to
avoid nested flows. We also rely on the ISR to wake up the
thread when the DMA has finished copying a chunk. During
this flow, we enable the RF-Kill interrupt.

The problem is that the RF-Kill interrupt handler can take
the mutex and bring the device down. This means that if
we load the firmware while the RF-Kill switch is enabled
(which will happen when we load the INIT firmware to read
the device's capabilities and register to mac80211), we
may get an RF-Kill interrupt immediately and the ISR will
be waiting for the mutex held by the thread that is
currently loading the firmware. At this stage, the ISR
won't be able to service the DMA's interrupt needed to
wake up the thread that load the firmware. We are in a
deadlock situation which ends when the thread that loads
the firmware fails on timeout and releases the mutex.

To fix this, take the mutex later in the flow, disable
the interrupts and synchronize_irq() to give a chance to
the RF-Kill interrupt to run and complete.
After that, mask all the interrupts besides the DMA
interrupt and proceed with firmware load. Make sure to
check that there was no RF-Kill interrupt when the
interrupts were disabled.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=111361Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The firmware can perform a scheduled scan with not matchsets passed,
but it can't send notification that results were found.  Since the
userspace then cannot know when we got new results and the firmware
wouldn't trigger a wake in case we are sleeping, it's better not to
allow scans without matchsets.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=110831

Cc: <stable@vger.kernel.org> [3.17+]
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

This was wronly added when the dependency on IWLWIFI was
removed.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=112201Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

When in AP mode we need to filter in beacons from other APs to update HT
operation mode. As a power optimization the beacons are filtered out when
there are no associated stations. As a result, when there are no
associated stations, we will not update the HT operation mode until a
station connects.
Add a debugfs parameter that allows to disable this optimization.
Signed-off-by: NAndrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Final API of iwl_mpdu_desc has a change in the order of
the fields and does not include energy from the third
antenna (which is perfectly fine, since we don't have one).
Update the structure accordingly.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Previous patches enabled new 9000 hardware DMA for one queue
only.
Enable the actual multi-queue path and configuration now.
This requires also per-queue NAPI struct.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

9000 series supports multi-queue rx. The hardware needs
to be configured with the hash functions to perform and
indirection table that maps hash results to the relevant
CPUs\queues.
Support this configuration.
Add debugfs hook to configure the indirection table in
order to enable performance analysis. The configuration
is stateless, receives a partial or full pattern and sends
the command to the firmware.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Decreasing Tx power is allowed only when success ratio is
above the threshold defined in the algorithm. Add this condition.
Signed-off-by: NGregory Greenman <gregory.greenman@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The 9000 hardware introduces the frame releaser, which
keeps track of the aggregation window and notifies host
of the window status. This requires in turn updating
the hardware with the RX BA session window size.
Firmware API was changed to enable that, update the driver
accordingly.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

It is only called from iwl_mvm_power_set_ba() so simplify things
by removing it.
Signed-off-by: NAvri Altman <avri.altman@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

This member is actually not needed as beacon abort
is only allowed for a bss station.
Signed-off-by: NAvri Altman <avri.altman@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The MAC address parameters passed to iwl_parse_nvm_data() are passed on
to iwl_set_hw_address_family_8000() which treats them as little endian.
Annotate them as such, and add the missing byte-swapping in mvm.

While at it, add the MAC address to the error to make debugging issues
with it easier.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Previous patches enabled the multi-queue rx path based on
iwl_mvm_has_new_rx_api() which returned false by default.
Change it to return the actual value based on the firmware
TLV which is now defined.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The firmware will return the baid for BA session in the
ADD_STA command response.
This requires masking the check of the status, which is
actually only 8 bits, and not the whole 32 bits.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Print a debug message in iwl_mvm_config_scan() if a scan configuration
data is decided not to be sent to FW.
Signed-off-by: NMax Stepanov <Max.Stepanov@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Make the code clearer.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

For debug purposes, allow setting minimum quota (for a single
virtual interface) from debugfs. This is an absolute minimum,
so it can only be set up to 95%.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

To be able to test low-latency behaviour properly, split the
different low-latency sources so that setting any one of them,
for example from debugfs, is sufficient; this avoids getting
the debug setting overwritten by other sources.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Currently firmware is configured to filter out beacons. In case
a beacon was changed - it is waking the host.
However, some vendors change their IEs frequently without any
significant change, and redundant wakeups are triggered as a
result.
As a solution disable beacon filtering when entering d0i3.
Instead, firmware will store the latest beacon and upon exiting
d0i3 it will send it up to the host, so the host can act upon
changes (if there were any).
This beacon will arrive as a dedicated notification - support it
as well.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The driver should support also negative temperatures.
So there is a need to separate between the return value and
temperature in order to be able to distinguish between
a negative temperature and error value.
Signed-off-by: NChaya Rachel Ivgi <chaya.rachel.ivgi@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Using kstrtouint() with a signed int isn't really right,
use kstrotoint() instead.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The outer scope has a perfectly suitable 'i' variable,
use it instead of adding a shadowing one in the inner
scope.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Slow platforms may have issues with dumping data upon
firmware assert. Make it easier to disable it for those
platform.
Signed-off-by: NGolan Ben-Ami <golan.ben.ami@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>