CTS protection was not working properly because the HW needs
RTS flag to be asserted, and it need also RTS duration field to be
filled with CTS-to-self duration.

This patch makes the driver to do this.
Signed-off-by: NAndrea Merello <andrea.merello@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

CTS protection was not working properly because the HW still need
RTS flag to be asserted, and it need also RTS rate field to be
set with CTS-to-self rate and RTS duration field to be filled with
CTS-to-self duration.

This patch makes the driver to do this.
Signed-off-by: NAndrea Merello <andrea.merello@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch make it possible to mac80211 to know whether a frame
has been received with short preamble.

It simply checks for the "splcp" flag in the RX status
descriptor, and eventually set RX_FLAG_SHORTPRE in mac80211
rx status structure.
Signed-off-by: NAndrea Merello <andrea.merello@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch make it possible to mac80211 to know whether a frame
has been received with short preamble.

It simply checks for the "splcp" flag in the RX status
descriptor, and eventually set RX_FLAG_SHORTPRE in mac80211
rx status structure.
Signed-off-by: NAndrea Merello <andrea.merello@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Add a new platform data flag "use_eeprom" that indicates that the eeprom
found on the card itself should be used instead of the one present in
the platform data.

This allows to override the MAC address of a PCI card while preserving
the eeprom data from the card itself.

The default behavior is preserved.
Signed-off-by: NHelmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds support to populate HT operatation IE in TDLS
setup confirm command. This is required for setting wider
bandwidths for TDLS operations.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds code to disable TDLS link upon reception of TDLS
teardown event from peer. Teardown event can happen either
because of TDLS teardown packet from peer or internal timeout
configured during TDLS setup. Event is propogated to cfg80211
so that userspace application can take appropriate action.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This patch adds configuration timeout for TDLS link. This is
configuered at the time of TDLS link configuration. If TDLS link
is inactive for more than timeout, FW will tear this link.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

After fixes to the rs algorithm reenable MCS9.
Signed-off-by: NEyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Since the declaration of iwl_mvm_fw_error_rxf_dump and
iwl_mvm_fw_error_sram_dump is under
ifdef CONFIG_IWLWIFI_DEBUGFS, do the same for their
implementation.
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

This allows mac80211 to flush the Tx queues before it sends
critical management frames.
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Publish WIPHY_FLAG_HAS_CHANNEL_SWITCH if the fw supports
newly introduced IWL_UCODE_TLV_API_CSA_FLOW.
When CSA starts, save the switching vif inside mvm and during the CSA period
configure fw with a new beacon after each beacon transmission in order to
update the csa counters.
Also, handle correctly the CSA unbind-bind flow which is triggered by mac80211
when the actual channel switch happens.
Signed-off-by: NAndrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: NLuciano Coelho <luciano.coelho@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Some ampdu actions change queues by direct target access.

Since the bus is disabled in d0i3, make sure to exit d0i3
before handling these actions.
Signed-off-by: NEliad Peller <eliadx.peller@intel.com>
Reviewed-by: NArik Nemtsov <arik@wizery.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

When a firmware error occurs, capture the last 32 commands
(which are still in memory) in the error dump debugfs file.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The SREV register in the WMAC register space does not contain the chip
revision, so it needs to be passed in from the kernel.

With an updated kernel, this fixes tx gain table selection.
Signed-off-by: NFelix Fietkau <nbd@openwrt.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

With certain hardware combinations the poll interval is exceeded before
initialization completes.

Tested on a MacBookPro10,1 using a Sabrent USB-A11N USB adapter.
Signed-off-by: NAndy Spencer <andy753421@ucla.edu>
Acked-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

This will enable AP mode to change channel width dynamically
based on 20/40 intolerance report sent by associated client.
Signed-off-by: NRajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

A similar patch fixed crashes seen on an ath9k system
when testing against a broken ath10k AP.  This patch
is slightly less protective, but probably will do the
job and is less redundant.
Signed-off-by: NBen Greear <greearb@candelatech.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Merge branch 'rfkill-gpio-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

This variable always tracks a constant value (256) so there's
no need to have it. Removing it simplifies code generation,
reducing the .text size (by about 240 bytes on x86-64.)
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The 'reset' argument is clearly a boolean, so use bool instead
of u8 with 0/1 values.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

If there's no LED on the system, it doesn't make a lot of sense
to include close to 4k of LED-related code (mostly in mac80211),
so instead of forcing LED support into the kernel, don't build
iwlwifi/mac80211 LED support if there's no LED class support.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Reviewed-by: NEliadX Peller <eliad@wizery.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The old code checks if hw_section_num is valid while the
right thing to do is to check if section[hw_section_num].data
is valid.
Signed-off-by: NEran Harary <eran.harary@intel.com>
Reviewed-by: NLiad Kaufman <liad.kaufman@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

For family 8000 products, the driver should take the MAC
address from the mac_override section and only if this
section is empty it should take it from the HW section.
Signed-off-by: NEran Harary <eran.harary@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Read first the nvm sections from the OTP, then read the nvm
sections from the external file and override the OTP values
(if there were any values in the OTP).
Signed-off-by: NEran Harary <eran.harary@intel.com>
Reviewed-by: NDor Shaish <dor.shaish@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

A few devices aren't allowed to be powered up at driver
load time. Add "power_up_nic_in_init" flag to iwl_cfg
structure to customize the load flow according to the
device.
Signed-off-by: NEran Harary <eran.harary@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

OTP size changed in family 7000 and in family 8000.
Signed-off-by: NEran Harary <eran.harary@intel.com>
Reviewed-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

There's no need to use a variable just to return the result
of another function call at the end of a function, remove it.
Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The expected throughput table used when estimating a new column
depends on the channel bandwidth. When switching from legacy to
siso or mimo the wrong expected throughput table was used as it
was chosen based on the the channel bandwidth in legacy which is
always 20Mhz. Instead it should be chosen based on the current sta
bandwidth which could be also 40Mhz or 80Mhz.
When enabling MCS9 this bug leads to a problem where the max
expected throughput of the siso or mimo column is 0 as MCS9 isn't
supported in 20Mhz. This in turns prevents switching to siso or mimo.

Fix this by using the sta bandwidth when deciding which table to choose.
Signed-off-by: NEyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

TPC is a power optimization which should only be attempted when
we're in the "stay in column" state after we've locked onto an optimal
rate.
Signed-off-by: NEyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Currently we were checking only if the driver power_scheme is set
to CAM. TPC shouldn't be enabled also when disabling powersave on the
interface (e.g. iw wlan0 set power_save off)
which may occur even if power_scheme wasn't set to CAM.
Signed-off-by: NEyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: NEliad Peller <eliad@wizery.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

rs_get_best_rate determines the optimal rate to try in a
new Tx column. Currently we were sometimes trying a too high
rate which would lead us to fail and avoid switching to the
new column despite it having a potential to be better.
Change the logic to try and find the first rate which would
exceed the current actual throughput or be more aggressive
if the success ratio is good.
Signed-off-by: NEyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Adding more options in the search cycle causes longer
search cycles with additional wondering off to non optimal Tx
configurations. Reduce the Tx configurations searched to
improve throughput in non optimal attenuations.
Signed-off-by: NEyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

My bad - I forgot to update this when sending the patch
upstream.

Fixes: 87d5e415 ("iwlwifi: mvm: rs: reinit rs if no tx for a long time")
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

The commit below introduced a bug in the validity bits in
init. Due to that, all the Coex mechanism stopped sending
kills to the BT side. Fix that.

Fixes: b9fae2d5 ("iwlwifi: mvm: BT Coex add support for Co-running block")
Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>

Signed-off-by: NJahnavi Meher <jahnavi.meher@redpinesignals.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

Adjust FIR filter co-efficients to improve EVM for 11b rates.
Signed-off-by: NRajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>