commit 9039d98581 upstream.
The page loading code trusts the data provided in the firmware images
a bit too much and may cause a buffer overflow or copy unknown data if
the block sizes don't match what we expect.
To prevent potential problems, harden the code by checking if the
sizes we are copying are what we expect.
Cc: stable@vger.kernel.org
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 8745f12a66 ]
Trying to collect firmware debug data while firmware
is not loaded causes various errors (e.g. failing NIC access).
This causes even a bigger issue if at that time the
HW radio is off.
In that case, when later turning the radio on, the Driver
fails to read the HW (registers contain garbage values).
(It may be that the CSR_GP_CNTRL_REG_FLAG_RFKILL_WAKE_L1A_EN
bit is cleared on faulty NIC access - since the same behavior
was seen in HW RFKILL toggling before setting that bit.)
Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 40d53f4a60 ]
It was assumed that apply_time==0 implies immediate scheduling, which is
wrong. Instead, the fw expects the START_IMMEDIATELY flag to be set.
Otherwise, this resulted in 0x3063 assert.
Fix that.
While at it rename the T2_V2_START_IMMEDIATELY to
TE_V2_START_IMMEDIATELY.
Fixes: f5d8f50f27 ("iwlwifi: mvm: Fix channel switch in case of count <= 1")
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 86a2b2043a upstream.
Some devices use a shared clock which is very sensitive to variations
and cause trouble in some situations. We need to set a bit in the phy
configuration to indicate that to the FW. To make this generic, add a
extra_phy_config_flags element to the device configuration and OR it
into the phy_cfg before sending it to the firmware. And also create a
set of configurations for devices that use shared clocks and need this
extra bit to be set.
Fixes: c62446d2b0 ("iwlwifi: add new 9460 series PCI IDs")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 0232d2cd7a ]
When getting HW rfkill we get stop_device being called from
two paths.
One path is the IRQ calling stop device, and updating op
mode and stack.
As a result, cfg80211 is running rfkill sync work that shuts
down all devices (second path).
In the second path, we eventually get to iwl_mvm_stop_device
which calls iwl_fw_dump_conf_clear->iwl_fw_dbg_stop_recording,
that access periphery registers.
The device may be stopped at this point from the first path,
which will result with a failure to access those registers.
Simply checking for the trans status is insufficient, since
the race will still exist, only minimized.
Instead, move the stop from iwl_fw_dump_conf_clear (which is
getting called only from stop path) to the transport stop
device function, where the access is always safe.
This has the added value, of actually stopping dbgc before
stopping device even when the stop is initiated from the
transport.
Fixes: 1efc3843a4 ("iwlwifi: stop dbgc recording before stopping DMA")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit b13f43a485 upstream.
We need to have a station and a queue for the monitor
interface to be able to inject traffic. We used to have
this traffic routed to the auxiliary queue, but this queue
isn't scheduled for the station we had linked to the
monitor vif.
Allocate a new queue, link it to the monitor vif's station
and make that queue use the BE fifo.
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=196715
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit dac4df1c5f upstream.
Newer firmware versions (such as iwlwifi-8000C-34.ucode) have
introduced an API change in the SCAN_REQ_UMAC command that is not
backwards compatible. The driver needs to detect and use the new API
format when the firmware reports it, otherwise the scan command will
not work properly, causing a command timeout.
Fix this by adding a TLV that tells the driver that the new API is in
use and use the correct structures for it.
This fixes https://bugzilla.kernel.org/show_bug.cgi?id=197591
Fixes: d7a5b3e9e4 ("iwlwifi: mvm: bump API to 34 for 8000 and up")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Cc: Thomas Backlund <tmb@mageia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The driver currently handles two NVM formats,
one for 7000 family and below, and one for 8000 family and above.
The 3168 series uses something in between,
so currently the driver uses incorrect offsets for it.
Fix the incorrect offsets.
Fixes: c4836b056d ("iwlwifi: Add PCI IDs for the new 3168 series")
Signed-off-by: Chaya Rachel Ivgi <chaya.rachel.ivgi@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Today we stop the device and the DMA without stopping the dbgc
recording before. This causes host crashes when the DMA
rate is high.
Stop dbgc recording when clearing the fw debug configuration
to fix this.
Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The LEDS_CMD command is only supported in some newer FW versions
(e.g. iwlwifi-8000C-31.ucode), so we can't send it to older versions
(such as iwlwifi-8000C-27.ucode).
To fix this, check for a new bit in the FW capabilities TLV that tells
when the command is supported.
Note that the current version of -31.ucode in linux-firmware.git
(31.532993.0) does not have this capability bit set, so the LED won't
work, even though this version should support it. But we will update
this firmware soon, so it won't be a problem anymore.
Fixes: 7089ae634c ("iwlwifi: mvm: use firmware LED command where applicable")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Stephen Rothwell reported quite a few conflicts in iwlwifi between
wireless-drivers and wireless-drivers-next. To avoid any problems later in
other trees merge w-d to w-d-next to fix those conflicts early.
We read the regulatory.lar_enabled field in iwl_fw_get_nvm() and store
it in nvm->lar_enabled, taking care of endianness. But then later we
read it again to pass the value to iwl_init_sbands() without handling
endianness. To solve this, simply reuse nvm->lar_enabled when calling
that function.
Fixes: e9e1ba3dbf ("iwlwifi: mvm: support getting nvm data from firmware")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The OTP in some SKUs have erroneously allowed 40MHz and 80MHz channels
in the 5.2GHz band. The firmware has been modified to not allow this
in those SKUs, so the driver needs to do the same otherwise the
firmware will assert when we try to use it.
Cc: stable@vger.kernel.org
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Move the BT_MBOX_PRINT() macro from mvm/debugfs.c to fw/api/coex.h so
it can be reused and remove duplicate definition of BT_MBOX_MSG(),
keeping only the one already in coex.h.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The firmware team is now re-using a bit that hasn't been
used for a few generations. Re-use for TX_ON_AIR drop.
This bit will be set by the firmware to indicate that
a frame in an A-MPDU was dropped but not because of the
already mapped reasons.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The firmware now adds more information about time sharing
with the Bluetooth core.
Adapt the API structures and add the new fields in the
debugfs hooks.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The iwl_wait_notification() function removes the wait entry from the
list. To make it clearer that it's doing the same thing as
iwl_remove_notification(), call the latter instead of having duplicate
code.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The corunning block was supposed to help in coex scenarios.
It required the driver to configure the firmware based on
the coupling between the two antennas of the devices.
This was never in use and the configuration sent by the
driver has always been blank.
Remove all that code.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The firmware API defined in the header files didn't match
the structure that are actually passed by the firmware.
The impact could be a decision for MIMO in Tx or Rx in
coex scenarios.
Fixes: 430a3bbafd ("iwlwifi: mvm: BT Coex - new API")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Support a new version of the beacon template command. This replaces v8
of the command, which was missing the rate code. Also, export rate
decision logic to a separate function.
Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Add the smem configuration to the fw data dump, once
the firmware crashes. This is useful mainly for later
parsing of the smem.
Signed-off-by: Golan Ben-Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
There are a few places where we don't have a space between the * and
the @ in the parameter description. Also, in one case, the @ had
trailing space before the parameter name.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
On devices starting from 8000 series, the host can no longer toggle
the LED through the CSR_LED_REG register, but must do it via the
firmware instead. Add support for this. Note that this means that
the LED cannot be turned on while the firmware is off, so using an
arbitrary LED trigger may not work as expected.
Fixes: 503ab8c56c ("iwlwifi: Add 8000 HW family support")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
All the firmware versions the driver supports enable DQA, and thus
the only way to get non-DQA mode is to modify the source. Remove
this mode to simplify the code.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
During init, the FW checks whether the FSEQ value matches what it
expects. If it doesn't match, we print a warning to let integrators
clearly know that something is wrong. This can happen if another core
(i.e. not WiFi) has updated the FSEQ version. This notification is
only sent by the FW in production, for development firmwares, an
assertion is triggered instead.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Mordechai Goodstein <mordechay.goodstein@intel.com>
If the OTP is empty, the NVM_GET_INFO command returns
with flags' bit(0) on. This means the FW returns the
default values for working with. This is allowed, so
use this returned data.
Fixes: e9e1ba3dbf ("iwlwifi: mvm: support getting nvm data from firmware")
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The FIFO numbering is different in A000 devices. This
means that we routed BE packets to BK FIFO. Fix this.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
We currently support 3 different versions of the beacon template
command and the code does some tricks in order to reuse what is
possible across these versions. But it is a bit complicated to read
and soon there will be one more variation that the driver needs
implement, which would complicate it even further.
Refactor the way we send beacon template commands, which increases the
code size a bit, but makes it much easier to read.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Apart from DVM, all firmware uses the same base API, and there's
code outside iwlmvm that needs to interact with it. Reflect this
in the source better and reorganize the firmware API to a new
fw/api/ directory.
While at it, split the already pretty large fw-api.h file into a
number of smaller files, going from almost 3k lines in there to
a maximum number of lines less than 1k.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Split out the firmware debug code to be more general, so that it
can be used by different subdrivers.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Track the current firmware image in the common code instead
of in the opmode so that later patches can access it there
in a common way.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
The firmware now adds a new DWORD for the MLME offload's
capability even on firmware versions that don't support
it.
Add the TLV bit to avoid getting the print:
capa flags index 3 larger than supported by driver.
This fixes the bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=196195
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
There's a lot of mvm code that really should be more generic
and part of the iwlwifi module. Start by making a place to
keep such code - in the new "fw" subdirectory - and already
move the firmware related header files there.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
