Enable WPA3 OWE support in AP mode. Driver currently supports cards that
offload OWE processing to userspace. This patch adds all the required
tools for such offloading. Firmware requests OWE processing sending new
UPDATE_OWE event to driver, which uses cfg80211_update_owe_info_event to
notify userspace software. After OWE processing is completed, userspace
sends calculated IEs to firmware using update_owe_info cfg80211 callback.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Enable WPA3 SAE support in AP mode. Driver currently supports cards
that offload SAE authentication to userspace. So allow userspace
software to subscribe and to send AUTH frames. Besides, enable
AP mode support in external_auth cfg80211 callback.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Each radio on a given wifi device may have different max scan SSIDs
limitation, so take this information from a per-radio info structure.
Signed-off-by: NIgor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Switch to extendable implementation of channel survey dump to make sure
that any new channel statistics can be added in the future without any
backwards compatibility issues. For this purpose use a separate variable
length bitmap to pass the list of valid statistics in firmware response.
Besides, switch to using channel frequency instead of IEEE channel
number to prepare for adding support of 6GHz band.
Signed-off-by: NIgor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

To support any number of capabilities bits in the future,
replace u32 capabilities bitmask by array. Pass
capabilities from firmware using TLV element.
Signed-off-by: NIgor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Firmware may support DFS offload. However the final decision on whether
to use it or not should be up to the user. So even if firmware supports
DFS offload, it should be enabled only if user explicitly requests it.
For this purpose introduce kernel param dfs_offload which is disabled
by default.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Currently this parameter is global, it is not specific to mac.
So this function does not need any input parameters.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

If firmware reports that it supports hardware switch capabilities,
driver needs to track and notify device whenever broadcast domain
of a particular network device changes (ie. whenever it's upper
master device changes).

Firmware needs a unique ID to tell broadcast domains from each other
which is an opaque number otherwise. For that purpose we can use
netspace:ifidx pair to uniquely identify each broadcast domain:
 - if netdev is not part of a bridge, then use it's own ifidx
   as a broadcast domain ID
 - if netdev is part of a bridge, then use bridge netdev ifidx
   as broadcast domain ID

Firmware makes sure that packets are only forwarded between
interfaces marked with the same broadcast domain ID.
Signed-off-by: NIgor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Currently in case of error when registering network device with the
kernel, we won't properly cleanup VIF state in firmware due to DEL_VIF
command will not be send to wifi card. Make sure it does.
Signed-off-by: NIgor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Add new command for getting/setting current transmit power
and propagate requests from user space to firmware.
Signed-off-by: NMikhail Karpenko <mkarpenko@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

In ETSI region DFS slave device can operate in two modes on DFS channels:
 - do on-channel radar detection and use higher Tx power
 - don't do radar detection and use lower Tx power as a consequence

Allow user to control that behavior through qtnfmac module parameter.
Signed-off-by: NIgor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Use control path to send EAPOL frames to make sure they are
sent with higher priority with aggregation disabled.
Signed-off-by: NIgor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Allow to change netns for wireless interfaces created by qtnfmac driver.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Currently driver uses the same regulatory rules to register all wiphy
instances. This is not logically correct since each wiphy may have
different capabilities (different supported bands, EIRP etc).
Allow firmware to pass regulatory rules for each MAC separately.
Signed-off-by: NIgor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Use REGULATORY_CUSTOM_REG flag only if firmware advertised a custom
regulatory domain prior to wiphy registration. Use REGULATORY_STRICT_REG
flag only if firmware knows its regulatory domain.
Signed-off-by: NIgor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Error reporting in qtnf_cfg80211_reg_notifier only requires to print
one type of message and an error code. Firmware will report success
for an attempt to set regulatory region to the same value,
so no special handling is required for this case.
Signed-off-by: NIgor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Wireless core calls regulatory notifier for each wiphy and it only
guarantees that bands info is updated for this particular wiphy prior
to calling a notifier. Hence updating all wiphy which belong to driver
in a single notifier callback is redundant and incorrect.
Signed-off-by: NIgor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

In the case of SAE AP, drivers offload authentication to user-space
software, e.g. hostapd. For FullMAC drivers the procedure is as follows.
If auth_type is SAE and user space indicates external authentication
capability, then driver requests authentication offload to user-space
software using cfg80211_external_auth_request call. From that point,
auth frame exchange is performed transparently for driver: user-space
software sends/receives mgmt frames using mgmt_tx/mgmt_frame_register
cfg80211 callbacks. As soon as authenitcation is completed, user-space
software notifies driver about its status using external_auth cfg80211
callback.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Replace textual license with SPDX-License-Identifier.
Add an SPDX-License-Identifier for the Makefile.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Do not reject RETRY changes in driver. This decision
should belong to firmware.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Advertise WIPHY_FLAG_4ADDR_STATION capability to wireless core. Send
use4addr interface change flag to firmware in change_virtual_intf
cfg80211 callback.

In order to enable adding wireless station interface to bridge
one should turn on 4addr mode using the following command:
$ iw dev wlan0 set 4addr on
$ brctl addif br0 wlan0

If this commands succeeds, then interface can be added to bridge.
Note that when wireless interface is added to bridge, wpa_supplicant
should be started with appropriate -b <brname> parameter, e.g:
$ wpa_supplicant -Dnl80211 -iwlan0 -c/path/to/wpa.conf -b br0
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Current implementation of dump_station cfg80211 callback supports
AP mode only. Add support for STA mode as well: by default in STA
mode this callback is supposed to return AP on managed interface.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Firmware supports scan dwell time tuning for various types of scans.
Enable support for this feature:
- advertise capability to configure channel dwell time to host
- pass scan dwell parameters to wireless card in scan request
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

On disconnect wireless core attempts to remove all the supported keys.
Following cfg80211_ops conventions, firmware returns -ENOENT code
for the out-of-bound key indexes. This is a normal behavior,
so no need to report errors for this case.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Driver retrieves information about supported extended capabilities
from wireless card. However this information is not propagated
further to Linux wireless core. Fix this by setting extended
capabilities fields of wiphy structure.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Do not cancel scan in disconnect callback. If there is an active scan,
it will be cancelled by firmware, then host driver will be properly
notified by event.

Cancelling scan in disconnect callback occasionally may lead to the
following race issue. Host is able to queue one scan after scan
abort in disconnect callback, and another scan after scan abort
in event handler. As a result, firmware receives second scan
before the first scan completes.
Signed-off-by: NIgor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Unify command error handling using qtnf_cmd_resp_result_decode
function. Do not duplicate error messages in command handlers
and cfg80211 callbacks: report 'cmd exec fail' only on control
path internal failure. Remove redundant 'unlikely' macros.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

In case firmware reports that it can not do OBSS scanning for 40MHz
2.4GHz channels itself, tell userpsace to do that instead by setting
NL80211_FEATURE_NEED_OBSS_SCAN flag.
Signed-off-by: NIgor mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

When cfg80211 disconnect callback is triggered and command is
processed by firmware, disconnect event with local parameter
set must be sent immediately. Indicating that it's a "local"
event (not from AP) will help upper layers to process this
event correctly.
Signed-off-by: NIgor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Remove STA connection states tracking from driver.
Leave it wireless core on host and to firmware.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/wireless/quantenna/qtnfmac/cfg80211.c: In function 'qtnf_dump_survey':
drivers/net/wireless/quantenna/qtnfmac/cfg80211.c:694:19: warning:
 variable 'vif' set but not used [-Wunused-but-set-variable]
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Reviewed-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

This patch implements basic WoWLAN support in qtnfmac driver, including
processing of WoWLAN features reported by firmware and implementation
of cfg80211 suspend/resume/wakeup callbacks. Currently the following
WoWLAN triggers are supported: disconnect, magic packet,
custom pattern packet.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Enable support for multiple SSIDs scans. Get max number of supported
SSIDs from firmware and report to cfg80211 core.
Signed-off-by: NAndrey Shevchenko <ashevchenko@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Implement set_power_mgmt() callback that forwards power saving
settings to the device firmware.
Signed-off-by: NSergei Maksimenko <smaksimenko@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Enable support for source MAC address randomization of probe request
frames. Pass addr/mask randomization parameters to firmware.
Signed-off-by: NAndrey Shevchenko <ashevchenko@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

In case *vif* is NULL at 655: if (!vif), the execution path jumps to
label out, where *vif* is dereferenced at 679:

if (vif->sta_state == QTNF_STA_CONNECTING)

Fix this by immediately returning when *vif* is NULL instead of
jumping to label out.

Addresses-Coverity-ID: 1469567 ("Dereference after null check")
Fixes: 480daa9c ("qtnfmac: fix invalid STA state on EAPOL failure")
Signed-off-by: NGustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: NSergey Matyukevich <sergey.matyukevich.os@quanenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Driver switches vif sta_state into QTNF_STA_CONNECTING when cfg80211
core initiates connect procedure. Further this state is changed either
to QTNF_STA_CONNECTED or to QTNF_STA_DISCONNECTED by BSS_JOIN and
BSS_LEAVE events from firmware. However it is possible that no such
events will be sent by firmware, e.g. if EAPOL timed out.

In this case vif sta_mode will remain in QTNF_STA_CONNECTING state and
all subsequent connection attempts will fail with -EBUSY error code.
Fix this by perfroming STA state transition from QTNF_STA_CONNECTING
to QTNF_STA_DISCONNECTED in cfg80211 disconnect callback.
No need to rely upon firmware events in this case.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Cancel scan operation on STA disconnect.
Signed-off-by: NAndrey Shevchenko <ashevchenko@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Driver uses statically allocated wdev structures for each virtual
interface. However wdev structure is not properly cleaned up between
its uses. As a result, various bugs appear when userspace tools
like hostapd were not gracefully stopped.

In particular, this commit fixes the following issue:
- start hostapd with more than 2 mBSS
- kill hostapd using SIGKILL
- start again hostapd with more than 2 mBSS
However only two mBSS entities will be started: primary
and the last BSS listed in hostapd config.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

Shorten line lengths using a more compact notation to access mac info.
Signed-off-by: NSergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>