The firmware will soon actually look at the AID field, and
when it does that it'll try to ensure that the AID is never
changing. Due to the way the station is added, it may start
with an invalid AID before it's associated, so to ensure a
constant AID (once it becomes non-zero), track the station
state and set the AID only when the station is associated
and when it disassociates.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

This fixes a long-standing bug that was introduced when this code
was introduced: cfg80211 passes a pointer, but we treat it as if
it was passing a value. The result is that we pass the pointer to
the firmware, instead of the value. It's not clear how this could
ever have worked, unless the firmware is ignoring this value.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

When driver needs to access the contents of a streaming DMA buffer
without unmapping it it should call dma_sync_single_for_cpu().
Once the call has been made, the CPU "owns" the DMA buffer and can
work with it as needed.
Before the device accesses the buffer, however, ownership should be
transferred back to it with dma_sync_single_for_device().
Both calls weren't performed by the driver, resulting with odd paging
errors on some platforms. Fix it.

Fixes: a6c4fb44 ("iwlwifi: mvm: Add FW paging mechanism for the UMAC on PCI")
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Support getting alive from two LMACs and dumping debug
data from both.
Deprecate older alive notifications no one is using.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

There's already a variable with the result in scope, use that.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

If iwl_mvm_find_free_queue() doesn't find a free queue, it will
return an inactive one.
However, not all the call paths free this queue before reassigning
it, which is a bug.
Check it in other paths and act accordingly.

Fixes: 9794c64f ("iwlwifi: mvm: support dqa queue inactivation upon timeout")
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

For CDB devices we will want to configure scan parameters
per band.
Support the new scan API for now. Logic per band will be
added in the future.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

For CDB arch there is another auxiliary mac.
Support statistics APIs that were changed to reflect that.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Currently we have up to 3 phy contexts - defined by NUM_PHY_CTX.
However - some code paths validate the ID by using MAX_PHYS define
which is set to 4.
While there is no harm it is incorrect - since the maximum is 3.
Remove the define and use the correct one.
Cleanup the code a bit while at it.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Since offchannel activity doesn't always require a BSS, e.g. ANQP
sessions, offchannel frames should not use the BSS queue, because it
might not be initialized.
Use the auxilary queue instead

Fixes: e3118ad7 ("iwlwifi: mvm: support tdls in dqa mode")
Signed-off-by: NBeni Lev <beni.lev@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Add to the v1 of the mfuart loading notification, the size
of the mfuart image, and write it to dmesg once the notification
is received.
Signed-off-by: NGolan Ben-Ami <golan.ben.ami@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

For a000 devices the INIT and RT images are unified to one
image.
The changes in the flow are the following:
* Driver load only RT firmware - meaning that the nvm access
  command will be done in the RT image load flow.
* A new command (NVM_ACCESS_COMPLETE) now signals to the FW that
  the driver is done accessing the NVM and FW can proceed with phy
  calibrations.
* Phy DB is no longer sent from INIT FW to be restored by driver
  for the RT FW - all the phy DB is now internal to the FW.
  INIT complete will now follow the NVM access command, without
  phy DB calls before.
* Paging command is sent earlier in the flow before NVM access
  to enable a complete load of FW.
* caution must be care when restart is called since we may have
  not completed init flow even though we are in RT firmware.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

We added the uAPSD enabled ACs and that made the
firmware choose to pull frames with uAPSD trigger
frames instead of PS-Poll.
Fix that.
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

For old firmwares the memory wasn't allocated, resulting in panic.
Make it dynamically allocated as well. Allow any order of functions
call.

Fixes: eef187a7 ("iwlwifi: enlarge number of ucode sections")
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>
Tested-by: NKalle Valo <kvalo@codeaurora.org>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This set of station id is redundant - it is being initialised
above.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

When removing inactive queue - use the central disable queue
function. This is needed due to a000 changes to come, but is
a proper cleanup anyway.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

The value returned from iwl_mvm_send_cmd_pdu() in this function is not
used and always returns an error (which is the whole point of the
call).  Tag the ret variable with __maybe_unused to avoid this compile
warning when W=1 is used:

/home/luca/iwlwifi/stack-dev/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c: In function ‘iwl_dbgfs_fw_restart_write’:
/home/luca/iwlwifi/stack-dev/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c:875:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
  int ret;
      ^
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

When compiling with W=1, we get the following warning in debugfs.c:

/home/luca/iwlwifi/stack-dev/drivers/net/wireless/intel/iwlwifi/dvm/debugfs.c: In function ‘iwl_dbgfs_fw_restart_write’:
/home/luca/iwlwifi/stack-dev/drivers/net/wireless/intel/iwlwifi/dvm/debugfs.c:2313:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
  int ret;
      ^

Fix it by ignoring the return value in this case.
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Remove the sta_id variable, to avoid this compile warning when
compiling with W=1:

/home/luca/iwlwifi/stack-dev/drivers/net/wireless/intel/iwlwifi/mvm/sta.c: In function ‘iwl_mvm_change_queue_owner’:
/home/luca/iwlwifi/stack-dev/drivers/net/wireless/intel/iwlwifi/mvm/sta.c:871:5: warning: variable ‘sta_id’ set but not used [-Wunused-but-set-variable]
  s8 sta_id;
     ^
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Move repeating code to a separate function.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

The return value from this function is never used, so make it return
void to avoid getting the following warning when compiling wiht W=1:

/home/luca/iwlwifi/stack-dev/drivers/net/wireless/intel/iwlwifi/dvm/rs.c: In function ‘rs_tl_turn_on_agg_for_tid’:
/home/luca/iwlwifi/stack-dev/drivers/net/wireless/intel/iwlwifi/dvm/rs.c:400:6: warning: variable ‘load’ set but not used [-Wunused-but-set-variable]
  u32 load;
      ^
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

shift_param is defined and set in iwl_pcie_load_cpu_sections but not
used. Fix this to avoid -Wunused-but-set-variable warning.

The code using it turned into dead code with commit dcab8ecd
("iwlwifi: mvm: support ucode load for family_8000 B0 only") which
added a separate function iwl_pcie_load_given_ucode_8000 (then 8000b)
for IWL_DEVICE_FAMILY_8000. Commit 76f8c0e1 ("iwlwifi: pcie:
remove dead code") removed the dead code but left shift_param as is.

iwlwifi/pcie/trans.c: In function ‘iwl_pcie_load_cpu_sections’:
iwlwifi/pcie/trans.c:871:6: warning: variable ‘shift_param’ set but not used [-Wunused-but-set-variable]

Fixes: dcab8ecd ("iwlwifi: mvm: support ucode load for family_8000 B0 only")
Fixes: 76f8c0e1 ("iwlwifi: pcie: remove dead code")
Signed-off-by: NKirtika Ruchandani <kirtika@google.com>
Cc: Sara Sharon <sara.sharon@intel.com>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Liad Kaufman <liad.kaufman@intel.com>
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
[removed some unnecessary braces]
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Commit 5fc0f76c introduced Rx stats from debugfs, the function
iwl_mvm_reset_frame_stats from that commit defines and sets mcs but
does not use it. Compiling iwlwifi with W=1 gives this warning -

iwlwifi/mvm/rs.c: In function ‘iwl_mvm_update_frame_stats’:
iwlwifi/mvm/rs.c:3074:14: warning: variable ‘mcs’ set but not used [-Wunused-but-set-variable]

Fixes: 5fc0f76c (iwlwifi: mvm: add Rx frames statistics via debugfs)
Signed-off-by: NKirtika Ruchandani <kirtika@google.com>
Cc: Eyal Shapira <eyal@wizery.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

mvmvif is defined and set in rs_mimo_allow but not used. Compiling
iwlwifi with W=1 gives the following warning, remove it. mvmsta is
used only to obtain mvmvif so remove it as well.

iwlwifi/mvm/rs.c: In function 'rs_mimo_allow':
iwlwifi/mvm/rs.c:165:22: warning: variable 'mvmvif' set but not used.[-Wunused-but-set-variable]

This fix removes calls to iwl_mvm_sta_from_mac &
iwl_mvm_vif_from_mac. They are both accessors, and do not have any
side-effects.  Commit e621c228 ("iwlwifi: rs: Remove workaround
that disables MIMO on P2P") removed a workaround that disabled MIMO on
P2P, 'mvmvif' was used for that workaround, but not removed with it.

Fixes: e621c228 ("iwlwifi: rs: Remove workaround that disables MIMO on P2P")
Signed-off-by: NKirtika Ruchandani <kirtika@google.com>
Cc: Alexander Bondar <alexander.bondar@intel.com>
Cc: Emmanuel Grumbach <emmmanuel.grumbach@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

The temperature variable is set but not used in
iwl_mvm_handle_statistics().  Remove it to avoid the following
compiler warning when W=1 is used:

/home/luca/iwlwifi/stack-dev/drivers/net/wireless/intel/iwlwifi/mvm/rx.c: In function ‘iwl_mvm_handle_rx_statistics’:
/home/luca/iwlwifi/stack-dev/drivers/net/wireless/intel/iwlwifi/mvm/rx.c:759:6: warning: variable ‘temperature’ set but not used [-Wunused-but-set-variable]
  u32 temperature;
      ^
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

IWL6000G2B_UCODE_API_MAX is not defined. ucode_api_max of
IWL_DEVICE_6030 uses IWL6000G2_UCODE_API_MAX. Use this also for
MODULE_FIRMWARE.

Fixes: 9d9b21d1 ("iwlwifi: remove IWL_*_UCODE_API_OK")
Signed-off-by: NJürg Billeter <j@bitron.ch>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

For 9000 devices withg upload, FW cannot send the entire phy
flags, and will send only the band - which is what we really
care about anyway. Change is backward compatible.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

In preparation for the new TX cmd - move the rate calculation
to a diffrent function, and make it independent of the TX
command.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Currently the function changes the TX cmd itself.
Make it more generic by returning a value, as preperation
to the new TX cmd.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

The maximum number of firmware sections is now 32 instead of 16 for
a000 devices. Set the appropriate define.  Avoid out of bounds access
in case there are more sections than the maximum set by driver.

Make the driver extensible to FW size changes by allocating the
section memory dynamically.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

The logic in the paging calculations is a bit hard to
follow. Replace it with a kernel define.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Some of the code there is duplicate while the only change is
the block size. Unifying it shortens the code and make the
difference clearer.
Signed-off-by: NSara Sharon <sara.sharon@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

We skipped one release, so bump twice, to 28.
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

When copying from vmalloc'ed memory to the SG list, don't crash
if the transport didn't provide any data.

Fixes: 7e62a699 ("iwlwifi: mvm: use dev_coredumpsg()")
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Due to some new features and changes, the firmware file will now
specify what type of memory to dump, in upper 8 bits of the type
field of the TLV. Parse it (types we don't understand are errors)
and teach the code to dump periphery memory.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

The return value is never used, so make the function void.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

There's no reason to be validating the memory dump types, or
checking them for duplication, or anything, since we really
just pass them through from the TLV to the dump.

Thus, change the way we handle memory dump TLVs to let the
driver just blindly use anything specified there, dumping it
into the memory dump output file.

This makes the system extensible without driver changes.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

For unified images, we shouldn't restart the HW if suspend fails.  The
only reason for restarting the HW with non-unified images is to go
back to the D0 image.

Fixes: 23ae6128 ("iwlwifi: mvm: Do not switch to D3 image on suspend")
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

Set the relevant fields to export the 32-bit device timestamp to
radiotap using the new mac80211 infrastructure. This will be useful
to allow synchronising monitor captures taken on different hardware
simultaneously.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>

There's no need for this to be only __read_mostly, since
it's only written in a single way depending on the module
parameter, so that can be moved into the module's __init
function, and the ops can be __ro_after_init.

This is a little bit safer since it means the ops can't
be overwritten (accidentally or otherwise), which would
otherwise cause an arbitrary function or bad pointer to
be called.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Acked-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>