There's no point in warning here, the user will just get an
error back to the debugfs file write, and warning just makes
it seem like there's an internal consistency problem when in
reality the user just happened to hit this at a bad time.
Remove the warning.

Fixes: f45f979d ("iwlwifi: mvm: disable dbg data collect when fw isn't alive")
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Every rx mpdu cmd is built from cmd_hdr | 80211_hdr.  The problem is
that the size of cmd_hdr changes with API changes and we don't know
where the 80211_hdr starts.

By adding the size of cmd_hdr dynamically, we can ensure that we always
know how to parse mpdu frames, without dependending on the API changes.
Signed-off-by: NMordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

This will allow using the same init in future generations.
Signed-off-by: NGolan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Store the default rxq number in a variable, so we won't need
to use the actual number in the code.
Signed-off-by: NGolan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Update reduce tx power command API to be compatible with new FW API.
Signed-off-by: NHaim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

While associated in low latency mode, or when traffic load is high,
don't enable EBS in scan request if fragmented EBS is not supported
by the FW.
Signed-off-by: NAyala Beker <ayala.beker@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

The Free Software Foundation's address shouldn't be in the license
notice anymore, and some of our check scripts complain about it
(via checkpatch.pl).  Remove the address to silence it.
Signed-off-by: NGolan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

This is used only within PCIe, and there's no reason to go through
the transport methods for a function call within PCIe itself.
Remove the dump_regs() method and call the function directly.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Allow other device generations to use the utilities that
are used to send and reclaim host commands and to allocate
rx, by making it non-static.
Signed-off-by: NGolan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

We would like to allow using tx init code for other queues but
the command queue - for newer devices.
Signed-off-by: NGolan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

We need to drop packets with errors (such as replay,
MIC, ICV, conversion, duplicate and so on).

Drop invalid packets, put the status bits in the metadata and
move the enum definition to the correct place (FW API header).
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

The user can validate what was written to the file by reading it,
and check what is the default value before changing it.
Signed-off-by: NMordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

The HE code is bloating the RX handling, and makes it too big.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

The HE code is bloating the RX handling, and makes it too big.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Current implementation turns this bit on only for HE MU.
Signed-off-by: NLiad Kaufman <liad.kaufman@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Add BSS color to the HE radiotap.
Signed-off-by: NLiad Kaufman <liad.kaufman@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Some variables are used in iwl-fh.h, but their type's definition
isn't included. This may break compilation when using the file
without including the necessary dependencies first.

Add the required include to iwl-fh.h.
Signed-off-by: NGolan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

A probe response built by a P2P GO should contain:
1. CSA/eCSA IE when relevant
2. If the corresponding probe request had P2P IE, then
need to add P2P IE with NOA attributes.

However, the NOA attributes and the updated channel switch
counter are known only to the FW. The solution is that FW
will send a notification with the relevant probe response
data and the driver will save it and update the probe
response accordingly.
Signed-off-by: NGregory Greenman <gregory.greenman@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

A new FW API has been added for WOWLAN_GET_STATUSES to support
multiple GTK keys and IGTK keys.  Check the respective TLV and use the
new API when it is set.

Let most of the code use the new version (v7) and convert the old
version (v6) to the new one when needed.

Also refactor some functions a bit so that they can be reused more
easily.  Particularly the part that calls WOWLAN_GET_STATUSES which is
reused in D3 and D0i3.
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Runtime PM can only be used if CONFIG_PM is set.  Move all the d0i3
code (which is essentially runtime PM) behind the CONFIG_PM flag.

This prevents undefined usage of some functions when CONFIG_PM is not
defined.
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

We repeated the same if twice in a row.  Remove the second one and
move the code block into the previous one.
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

During d3, the firmware records debug data into internal buffer
if debug data collection occurs, collect the data that was written to the
buffer
Signed-off-by: NShahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

The tid for Non-QOS frames is set to IWL_MAX_TID_COUNT. This value
is also used for configuring the queue for non-QOS data. However, this
tid is used by the FW for management queues. As a result, the FW
does not encrypt non-QOS data frames.

Fix this by setting the tid for non-QOS data frames to zero, which
is a valid value for data frames in the FW.

This also fixes a bug in sending multicast frames, where the queues
are allocated with tid == 0, but are sent with tid == 8, which may
lead to unexpected behavior.
Signed-off-by: NAvraham Stern <avraham.stern@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Upon first calling read() on a debugfs file, invoke
iwl_dbgfs_##name##_read and store the response buffer on the heap, so
subsequent read() calls don't need to invoke said function again.

This is done because cat etc will call read() repeatedly until EOF is
reached (or read() returns 0), which in the current implementation will
cause said function to be invoked multiple times.

With the current implementation this can also cause buggy behavior in
some weird edge cases where the first invocation returns a string of
length n, and the second of length m>n: The last m-n characters of
the second invocation will be printed to screen.
Signed-off-by: NNaftali Goldstein <naftali.goldstein@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

The iwl_dhc_tlc_cmd struct is not used, so remove it, including the
iwl_tcl_debug_flags enumeration.
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Don't enable debugging timestamps by default, so we save power by not
waking up the FW with timestamp commands.
Signed-off-by: NMordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

fix spelling mistake in rx stats text
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Acked-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This part of the iwlwifi driver doesn't need anything provided by
pci-aspm.h, so remove the unnecessary include of it.
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: NSinan Kaya <okaya@kernel.org>
Acked-by: NLuca Coelho <luciano.coelho@intel.com>

The code is different enough to justify a split.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

We would like to allow other utlities to init msix and rx.
Put their declarations in a place accessible to other utilities.
Signed-off-by: NGolan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

If CONFIG_IPV6 is not enabled in the kernel, tcp.h is not included
implicitly from other header files, causing compilation errors.  To
solve that, explicitly include it in tx-gen2.c.
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

There was a bunch of code to support gscan which has never been used.
Remove it all to cleanup and get rid of a lot of dead code.
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Balanced power save mode isn't supported in the fw for 22560 devices
yet.  Configure the power save mode to CAM until it gets implemented.
Signed-off-by: NGolan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

This reverts commit f2e66c8d.

The firmware never implemented this, and they do not plan to.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

The periphery can't be accessed before we set the
INIT_DONE bit which initializes the device.

A previous patch added a reconfiguration of the MSI-X
tables upon resume, but at that point in the flow,
INIT_DONE wasn't set. Since the reconfiguration of the
MSI-X tables require periphery access, it failed.

The difference between WoWLAN and without WoWLAN is that
in WoWLAN, iwl_trans_pcie_d3_suspend clears the INIT_DONE
without clearing the STATUS_DEVICE_ENABLED bit in the
software status. Because of that, the resume code thinks
that the device is enabled, but the INIT_DONE bit has been
cleared.

To fix this, don't reconfigure the MSI-X tables in case
WoWLAN is enabled. It will be done in
iwl_trans_pcie_d3_resume anyway.

Fixes: 52848a79 ("iwlwifi: pcie: reconfigure MSI-X HW on resume")
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Currently multi-queue is disabled for 22000 devices.

This was since driver isn't supposed to write to prph
registers anymore, and FW needs to configure the RFH.

Now that FW added support for the API - use it and remove
the 22000 multi RX queue disablement.

Bump min API version to avoid compatibility issues.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Currently the firmware does not stop recording debugging data when
entering D3 and this causes trouble (e.g. sporadic wake ups).

Fix that by stopping dbg recording when suspending.
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Reading and dumping memory areas takes time, and sometimes
dumping all of the areas isn't necessary.

Allow choosing the memory areas which should be dumped.
Signed-off-by: NShahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: NGolan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Op mode will need this data in order to feed FW with it.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

This makes code less indented and more readable.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>