Channel switch finalization is now 2-step. First
step is when driver calls chswitch_done(), the
other is when reservation is actually finalized
(which be defered for in-place reservation).
It is now safe to call ieee80211_chswitch_done()
more than once.
Also remove the ieee80211_vif_change_channel()
because it is no longer used.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Channel switch finalization is now 2-step. First
step is when driver calls csa_finish(), the other
is when reservation is actually finalized (which
can be deferred for in-place reservation).
It is now safe to call ieee80211_csa_finish() more
than once.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The ieee80211_check_combinations() computes
radar_detect accordingly depending on chanctx
reservation status.
This makes it possible to use the function for
channel_switch validation.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Multi-vif in-place reservations happen when
it is impossible to allocate more channel contexts
as indicated by interface combinations.
Such reservations are not finalized until all
assigned interfaces are ready.
This still doesn't handle all possible cases
(i.e. degradation of number of channels) properly.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Split sched scan IEs to band specific and not band specific
blocks. Common IEs blocks may be sent to the FW once per command,
instead of per band.
This allows optimization of size of the command, which may be
required by some drivers (eg. iwlmvm with newer firmware version).
As this changes the mac80211 API, update all drivers to use the
new version correctly, even if they don't (yet) make use of the
split data.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Some drivers (such as iwlmvm) can handle multiple bands in a single
HW scan request. Add a HW flag to indicate that the driver support
this. To hold the required data, create a separate structure for
HW scan request that holds cfg scan request and data about
different parts of the scan IEs.
As this changes the mac80211 API, update all drivers using it to
use the correct new function type/argument.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If the device fails during a restart, mac80211 now handles the
situation better but we still have a little bit of cleanup to
do in the driver - add the required code.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: ArikX Nemtsov <arik@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Since the new API allows multiple priorities, we need to
properly set the beacon's prorities in the TX cmd associated
to it.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Use extended beacon notification when supported by FW.
Set last beacon system time to AP or GO interface.
System time of last beacon can be used to avoid TBTT overlapping
between two interfaces, CSA and other uses.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Introduce new station flag STA_FLG_DISABLE_TX, which is modified with ADD_STA
command. This flag, when set, disables tx to the STA.
Provide an API (iwl_mvm_sta_modify_disable_tx) to modify this flag, which
should be used in channel switch and immediate quiet flows.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
The beacon filtering configuration in d0i3 currently uses
the max value defined as 1024. However, with beacon interval
of 100ms we end up with too-frequent wakeups.
Instead, configure the escape timer to 0, asking the fw
to disable it altogether.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
If BT is active, we need to refrain from using the shared
antenna. This logic is done in the firmware when we use the
link quality tables. But for management frames, the rate is
written in the Tx command by the driver.
Hence the driver needs to make sure not use the shared
antenna when BT is active for any frames that don't use
the rate scale table such as management frames or multicast.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This really belongs to the constants file.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
When the firmware enables TxTxCorunning, we can lift the
constaints on the rate control.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
We can Tx in MIMO rates when we are in TxTx Disallow mode
just like we can when we are in Tight mode.
Same if we are in 5Ghz regardless of the mode we are.
Change the code to allow MIMO in these cases.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Just in case sizes change in the OTP without proper SW
updating, an additional check is inserted when reading OTP
sections to assure no overflows occur.
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Some of the maximum values of the parsed external NVM file
in the B-step of the 8000 HW family were updated, so this
updates these values.
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
The format of the CSR_HW_REV register has changed in 8000
HW family. To keep backwards compatibility, we store the
value of this register as usual in trans->hw_rev, only we
store it in the old format in this variable.
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Don't use nvm_hw pointer if it is NULL. Print an error
message if the MAC address isn't valid.
Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
iwldvm stalls are often blamed on power management. Add an option
to force it all the way off.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
I've never seen this happen, but it's useful to rule it out.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Fix NVM channel attributes. Add indoor-only and GO Concurrent
bits. Remove DFS channel bit which is overlapped with radar.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
The nvm_file should be loaded by default for SDIO
procucts only. Change the configuration accordingly.
While at it, fix a typo in the device name.
Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This allows to use the firmware monitor. This capability
uses a lot of contiguous memory (up to 64MB), so make its
usage module parameter dependent.
The driver will try to allocate as much contiguous memory
as possible downgrading its requirements until the
allocation succeeds.
Dump this data into the fw-error dump file when an error
happens.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This can be useful later for parsing since the parsing may
differ based on the device's family / bus.
Also add the human readable version of the firmware.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
MCS32 is currently not supported, so don't
declare support for it.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Use num of scan channels as advertised by fw TLV.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
The low-priority scan feature can be useful, e.g. for OBSS
scans (if those are required by the AP); add back support
for it, restoring the maximum out time to the value it was
for low-priority scan before that was removed.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Use ksize to get scan command size instead of calculating it, to
avoid nasty bugs.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
The current sched scan channel configuration code
configures all the supported channels for scanning.
However, this can result in SYSASSERT in some cases,
when the configured channel is disabled.
Instead, configure only the channels given in the
req struct, and set the channel_count field appropriately.
While on it, change the code to use channel->hw_value
instead of recalculating the channel number.
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
When detecting a non-link packet, h5_reset_rx() frees the Rx skb.
Not returning after that will cause the upcoming h5_rx_payload()
call to dereference a now NULL Rx skb and trigger a kernel oops.
Signed-off-by: Loic Poulain <loic.poulain@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
After sending a TDLS discovery-request, we expect a reply to arrive on
the AP's channel. We must stay on the channel (no PSM, scan, etc.), since
a TDLS setup-response is a direct packet not buffered by the AP.
Add a new mac80211 driver callback to allow discovery session protection.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Make sure userspace added a TDLS peer station before invoking the
transmission of the first setup frame. This ensures packets to the peer
won't go through the AP path.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Write a mac80211 to the cfg80211 API for requesting a userspace TDLS
operation. Define TDLS specific reason codes that can be used here.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
As the spec mandates, flush data in the AP path before transmitting the
first setup frame. Data packets transmitted during setup are already
dropped in the Tx path.
For the teardown flow, flush all packets in the direct path before
transmitting the teardown frame. Un-authorize the peer sta after teardown
is sent, forcing all subsequent Tx to the peer through the AP.
Make sure to flush the queues when disabling the link to get the
teardown packet out.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
[adjust to Luca's new quuee API and stop only vif queues]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There are setup/teardown specific actions to be done that accompany
the sending of a TDLS management packet. Split the main function to
simplify future additions.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The TDLS initiator is set once during link setup. If determines the
address ordering in the link identifier IE.
Use the value from userspace in order to have a correct teardown packet.
With the current code, a teardown from the responder side fails the TDLS
MIC check because of a bad link identifier IE.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The TDLS initiator is set once during link setup. If determines the
address ordering in the link identifier IE.
Fix dependent drivers - mwifiex and mac80211.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When setting up a TDLS session, register a delayed work to remove
the peer if setup times out. Prevent concurrent setups to support this
capacity.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
For TDLS, the AUTHORIZED flag arrives with all other important station
info (supported rates, HT/VHT caps, ...). Make sure to set the station
state in the low-level driver after transferring this information to
the mac80211 STA entry.
This aligns the STA information during sta_state callbacks with the
non-TDLS case.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Rename the flags used in the Tx path and add an explanation for the
reasons to drop, send directly or through the AP.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Instead of stopping all the hardware queues during channel switch,
which is especially bad when we have large CSA counts, stop only the
queues that are assigned to the vif that is performing the channel
switch.
Additionally, check for (sdata->csa_block_tx) instead of calling
ieee80211_csa_needs_block_tx(), which can now be removed.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In some cases we may want to stop the queues of a single vif (for
instance during a channel-switch). Add a function that stops all the
queues that are assigned to a vif. If a queue is assigned to more
than one vif, the corresponding netdev subqueue of the other vif(s)
will also be stopped. If the HW doesn't set the
IEEE80211_HW_QUEUE_CONTROL flag, then all queues are stopped.
Also add a corresponding function to wake the queues of a vif back.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Sometimes different vifs may be stopping the queues for the same
reason (e.g. when several interfaces are performing a channel switch).
Instead of using a bitmask for the reasons, use an integer that holds
a refcount instead. In order to keep it backwards compatible,
introduce a boolean in some functions that tell us whether the queue
stopping should be refcounted or not. For now, use not refcounted for
all calls to keep it functionally the same as before.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
There is no need to stop all queues when we want to flush specific
queues, so stop only the queues that will be flushed.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Michal Kazior