Move q->ndesc initialization before the for loop in mt76u_alloc_rx
since otherwise allocated urbs will not be freed in mt76u_buf_free
Double-check scatterlist pointer in mt76u_buf_free

Fixes: b40b15e1 ("mt76: add usb support to mt76 layer")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Fix possible NULL pointer dereference in mt76u_mcu_deinit routine that
can occur if initialization path fails before calling mt76u_mcu_init_rx

Fixes: ee676cd5 ("mt76: add driver code for MT76x2u based devices")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

We don't need to send firmware data asynchronously, much simpler is just
use synchronous usb_bulk_msg().
Tested-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Add mt76x0_init_txpower in order to initialize max_power per channel
at device bootstrap. Modify mt76x0_get_tx_power_per_rate and
mt76x0_get_power_info signature in order to compute tx power for
non-operating channels
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Initialize target_power variable in mt76x0_phy_set_txpower in order to
report target_power in debugfs
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

There is no need to retun 0 in mt76_dma_attach(), so switch it to void.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Remove mt76x2_alloc_device since it just runs mt76_alloc_device.
Move mt76_alloc_device call in mt76x2_probe
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Remove mt76x0u_alloc_device since it just runs mt76_alloc_device.
Move mt76_alloc_device call in mt76x0u_probe and in mt76x0e_probe
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Remove mt76x2u_alloc_device since it just runs mt76_alloc_device.
Move mt76_alloc_device call in mt76x2u_probe
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Move mt76x{0,2} alloc_device common code in mt76_alloc_device and
remove duplicated code
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Block only when the busy time reaches 92%, as lower values can be reached with
heavy 802.11 traffic as well.
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Based on system load and time needed by other calibration runs, the time
between dev->mac_work runs can vary quite a bit.
Calculate busy time based on the actual time difference in order to avoid
potentially over-estimating busy time, which could lead to unnecessary tx
blocking.
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Avoid triggering too early
Signed-off-by: Felix Fietkau <nbd@nbd.name>

ED/CCA Tx blocking checks need to be run every 100 ms in order to avoid
triggering too late and keeping tx blocking on for too long
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Avoid reusing the previous channel's tx blocking state
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Doing so could lead to hangs
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Software encrypted packets can be passed not just through the drv_tx callback,
but also through the intermediate tx queue.
In order to deal with that, move the override to mt76x02_mac_write_txwi and
also take care of filling in the per-packet rate information
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Remove add_buf function pointer in mt76_queue_ops data structure since
it is no longer used
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Move mt76_dma_tx_queue_skb_raw routine in dma.c and add the
corresponding entry in mt76_queue_ops data structure.
mt76_dma_tx_queue_skb_raw  will be reused adding support for
mt7603 driver
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Remove useless commented out configuration in mt76x0u_load_firmware
routine
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Move mt76_mcu_rx_event i mt76-core module and remove duplicated code.
mt76_mcu_rx_event will be reused adding support for mt7603 driver
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Move mt76_mcu_get_response in mt76-core module and remove duplicated
code. mt76_mcu_get_response will be reused adding support for mt7603
driver
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Move mt76_mcu_msg_alloc in mt76-core module and remove duplicated code.
mt76_mcu_msg_alloc will be reused adding support for mt7603 driver
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Fix rate power configuration for VHT mcs 8 and 9 in
mt76x0_get_tx_power_per_rate. Moreover use the rate power
offset used for HT/VHT mcs 6 even for HT/VHT mcs 7

Fixes: b37bbc8c ("mt76x0: remove eeprom dependency from mt76x0_set_tx_power_per_rate")
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Since we implement beconing on USB now, similar interfaces should be
supported for USB as are for MMIO. Tested only on IBSS mode and
AP mode (not enabled due to lack of PS buffering).
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Configure beaconing on USB devices without PS buffering support.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Initialize beaconing also on mt76x2u.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Disable BEACON timer during init and configure interrupt registers
only for mmio devices.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

BSSID is not strtirct related with beaconing (for example we can have
2 STA vifs) and more related with MAC address, so initaize BSSID when
setting MAC address.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Since we now support mt76x2u feature to allow set mac address
when creating interface in common code we can use it for
mt76x2u.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Use vif_mask to count interfaces to allow to set mac address in HW
if there is only one interface and report error if we create
interface with wrong BSSID resulting in already used index.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

Merge tag 'iwlwifi-next-for-kalle-2019-02-14' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next

Fourth batch of iwlwifi patches intended for v5.1

* Work on the new debugging infrastructure continues;
* FTM (Fine Timing Measurement) initiator and responder implementation;
* Support for a new device family started;
* Bump supported FW API to 46;
* General bugfixes;
* Other cleanups;

AP interfaces still use some static TX queues (for probes,
broadcast and multicast frames). These queues were not stopped
correctly when the transport layer indicated the queue should be
stopped. As a result, when flushing the queues, new frames from
the overflow queue were tx'd, so the queues still had frames after
flushing. This ended up in an assert since trying to remove a station
with non-empty queues.

Fix it by stopping the static queues correctly when required.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

Add IWL_FW_INI_APPLY_EARLY and IWL_FW_INI_APPLY_AFTER_ALIVE apply points
to unified images.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

When HW restart is requested but not started yet, commands would not
be sent to the FW, and some function calls would return an error. In
case of iwl_mvm_mac_sta_state() returning an error value when a
station is removed can lead to an unneeded warning in
__sta_info_destroy_part2().

Handle this by setting the return value to 0, in case HW restart is
in progress.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

When HW restart is requested but not started yet, commands would not
be sent to the FW, and some function calls return an error. Such cases
can trigger unneeded warning messages, e.g., in iwl_mvm_mac_sta_state()
and iwl_mvm_bss_info_changed_station().

Handle a couple of these cases by also checking in the WARN_ON()
condition that HW restart is not requested.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

The size of the buffer is IWL_FW_TRIGGER_ID_NUM - 1 which is equal to
IWL_FW_TRIGGER_ID_HOST_CHANNEL_SWITCH_COMPLETE so if the driver receives
this trigger, it will cause a buffer overflow.

Solve this by increasing the buffer size by 1.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Fixes: fe1b7d6c ("iwlwifi: add support for triggering ini triggers")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

The spatial reuse 4 words fields are fetched from the HE-SIGA
by the firmware and propagated to the driver through the
Rx info. This is useful to populate the radiotap header.

We were looking at the wrong place in the firmware data and
got bogus values. Fix that.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Fixes: bdf180c8 ("iwlwifi: mvm: change PHY data RX for HE radiotap")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

Enable ignore consecutive trigger feature which allows to configure the
driver to skip consecutive triggers from the same type.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

Fix several issues related to dump delay:
1. In legacy dump trigger, use stop_delay field instead of trig_dis_ms.
2. ini delay is messured in usec so align both ini and legacy to usec.
3. schedule_delayed_work receives the delay value in jiffies so
translate the dump delay to jiffies.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Fixes: ea7cb829 ("iwlwifi: dbg: make trigger functions type agnostic")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>