Sending host command with CMD_WANT_SKB flag demands the release of the
response buffer with iwl_free_resp function.
The patch adds the memory release in all the relevant places

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

In a previous commit, we removed support for API versions earlier than
22 for these NICs.  By mistake, the *_UCODE_API_MIN definitions were
set to 17.  Fix that.

Fixes: 4b87e5af638b ("iwlwifi: remove support for fw older than -17 and -22")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

Clear the struct so that all reserved fields are zero when we
send the struct down to the device.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

The iwl_mvm_remove_sta_key() function handles removing a key when the
sta doesn't exist anymore.  Mistakenly, this was changed to return an
error while fixing another bug.

If the mvm_sta doesn't exist, we continue normally, but just don't try
to remove the igtk key.

Fixes: cd4d23c1ea9b ("iwlwifi: mvm: Fix removal of IGTK")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

We only need to handle d0i3 entry and exit during suspend resume if
system_pm is set to IWL_PLAT_PM_MODE_D0I3, otherwise d0i3 entry
failures will cause suspend to fail.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=194791

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

When we want to stop the recording of the firmware debug
and restart it later without reloading the firmware we
don't need to resend the configuration that comes with
host commands.
Sending those commands confused the hardware and led to
an NMI 0x66.

Change the flow as following:
* read the relevant registers (DBGC_IN_SAMPLE, DBGC_OUT_CTRL)
* clear those registers
* wait for the hardware to complete its write to the buffer
* get the data
* restore the value of those registers (to restart the
  recording)

For early start (where the configuration is already
compiled in the firmware), we don't need to set those
registers after the firmware has been loaded, but only
when we want to restart the recording without having
restarted the firmware.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

The ucode_loaded check should be under the mutex, since it can
otherwise change state after we looked at it and before we got
the mutex. Fix that.

Fixes: 5c89e7bc557e ("iwlwifi: mvm: add registration to cooling device")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

Allow working IBSS also when working in DQA mode.
This is done by setting it to treat the queues the
same as a BSS AP treats the queues.

Fixes: 7948b87308a4 ("iwlwifi: mvm: enable dynamic queue allocation mode")
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

During d0i3 flow we flush all the queue except from the command queue.
Currently, in this flow the command queue is hard coded to 9.
In DQA the command queue number has changed from 9 to 0.
Fix that.

This fixes a problem in runtime PM resume flow.

Fixes: 097129c9e625 ("iwlwifi: mvm: move cmd queue to be #0 in dqa mode")
Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

Up until now, the driver was comparing the rate reported by the FW and
the rate of the latest LQ command to avoid processing data belonging
to the old LQ command. Recently, FW changed the meaning of the initial
rate field in tx response and it holds the actual rate (which is not
necessarily the initial rate of LQ's rate table). Use instead LQ cmd
color to be able to filter out tx responses/BA notifications which
where sent during earlier LQ commands' time frame.

This fixes some throughput degradation in noisy environments.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>