linux-block.git
7 months agowifi: cfg80211: optionally support monitor on disabled channels
Johannes Berg [Tue, 6 Feb 2024 14:54:08 +0000 (16:54 +0200)]
wifi: cfg80211: optionally support monitor on disabled channels

If the hardware supports a disabled channel, it may in
some cases be possible to use monitor mode (without any
transmit) on it when it's otherwise disabled. Add a new
channel flag IEEE80211_CHAN_CAN_MONITOR that makes it
possible for a driver to indicate such a thing.

Make it per channel so drivers could have a choice with
it, perhaps it's only possible on some channels, perhaps
some channels are not supported at all, but still there
and marked disabled.

In _nl80211_parse_chandef() simplify the code and check
only for an unknown channel, _cfg80211_chandef_usable()
will later check for IEEE80211_CHAN_DISABLED anyway.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206164849.87fad3a21a09.I9116b2fdc2e2c9fd59a9273a64db7fcb41fc0328@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: cfg80211: rename UHB to 6 GHz
Johannes Berg [Tue, 6 Feb 2024 14:54:07 +0000 (16:54 +0200)]
wifi: cfg80211: rename UHB to 6 GHz

UHB stands for "Ultra High Band", but this term doesn't really
exist in the spec. Rename all occurrences to "6 GHz", but keep
a few defines for userspace API compatibility.

Link: https://msgid.link/20240206164849.c9cfb9400839.I153db3b951934a1d84409c17fbe1f1d1782543fa@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211_hwsim: Add 160MHz bw range to regdom_custom_04
Andrei Otcheretianski [Tue, 6 Feb 2024 14:54:04 +0000 (16:54 +0200)]
wifi: mac80211_hwsim: Add 160MHz bw range to regdom_custom_04

This allows testing 160MHz channels with DFS concurrent.
While at it, remove the TODO for adding a module param to enable
NL80211_EXT_FEATURE_DFS_CONCURRENT. This is not really needed as
mac80211_hwsim still needs to be loaded with custom regdom.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206164849.1b9955e511f0.I5e5315e3a047db3677bfb5ead003a3a4f7d29b13@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: remove only own link stations during stop_ap
Aditya Kumar Singh [Mon, 5 Feb 2024 16:29:52 +0000 (21:59 +0530)]
wifi: mac80211: remove only own link stations during stop_ap

Currently, whenever AP link is brought down via ieee80211_stop_ap()
function, all stations connected to the sdata are flushed. However, in case
of MLO there is a requirement to flush only stations connected to that link
and not all.

For instance - Consider 2 GHz and 5 GHz are AP MLD. Now due to some reason
5 GHz link of this AP is going down (link removal or any other case). All
stations connected, even legacy stations connected to 2 GHz link AP would
also be flushed. Flushing of other link stations is not desirable.

Fix this issue by passing self link ID to sta_flush() function. This would
then only remove the stations which are still using the passed link
ID as their link sta. Other stations will not be affected.

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240205162952.1697646-4-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: flush only stations using requests links
Aditya Kumar Singh [Mon, 5 Feb 2024 16:29:51 +0000 (21:59 +0530)]
wifi: mac80211: flush only stations using requests links

Whenever sta_flush() function is invoked, all STAs present in that
interface are flushed. In case of MLO, it is desirable to only flush such
STAs that are at least using a given link id as one of their links.

Add support for this by making change in the __sta_info_flush API argument
to accept a link ID. And then, only if the STA is using the given link as
one of its links, it would be flushed.

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240205162952.1697646-3-quic_adisi@quicinc.com
[reword commit message, in particular this isn't about "active" links]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: cfg80211: add support for link id attribute in NL80211_CMD_DEL_STATION
Aditya Kumar Singh [Mon, 5 Feb 2024 16:29:50 +0000 (21:59 +0530)]
wifi: cfg80211: add support for link id attribute in NL80211_CMD_DEL_STATION

Currently whenever NL80211_CMD_DEL_STATION command is called without any
MAC address, all stations present on that interface are flushed.
However with MLO there is a need to flush such stations only which are
using at least a particular link from the AP MLD interface.

For example - 2 GHz and 5 GHz are part of an AP MLD.
To this interface, following stations are connected -
   1. One non-EHT STA on 2 GHz link.
   2. One non-EHT STA on 5 GHz link.
   3. One Multi-Link STA having 2 GHz and 5 GHz as active links.

Now if currently, NL80211_CMD_DEL_STATION is issued by the 2 GHz link
without any MAC address, it would flush all station entries. However,
flushing of station entry #2 at least is not desireable since it
is connected to 5 GHz link alone.

Hence, add an option to pass link ID as well in the command so that if link
ID is passed, stations using that passed link ID alone would be flushed
and others will not.

So after this, station entries #1 and #3 alone would be flushed and #2 will
remain as it is.

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240205162952.1697646-2-quic_adisi@quicinc.com
[clarify documentation]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: remove gfp parameter from ieee80211_obss_color_collision_notify
Lorenzo Bianconi [Thu, 8 Feb 2024 11:01:43 +0000 (12:01 +0100)]
wifi: mac80211: remove gfp parameter from ieee80211_obss_color_collision_notify

Get rid of gfp parameter from ieee80211_obss_color_collision_notify
since it is no longer used.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://msgid.link/f91e1c78896408ac556586ba8c99e4e389aeba02.1707389901.git.lorenzo@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: rtw89: change qutoa to DBCC by default for WiFi 7 chips
Ping-Ke Shih [Fri, 9 Feb 2024 06:52:29 +0000 (14:52 +0800)]
wifi: rtw89: change qutoa to DBCC by default for WiFi 7 chips

Since WiFi 7 is expected to support MLO, so we should enable MAC-0/1 and
PHY-0/1. By default, set dbcc_en=true, change quota to DBCC mode, and set
MLO mode to 2 + 0 that means we only use 2x2 connection on MAC/PHY-0
for now.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240209065229.34515-12-pkshih@realtek.com
7 months agowifi: rtw89: reference quota mode when setting Tx power
Po-Hao Huang [Fri, 9 Feb 2024 06:52:28 +0000 (14:52 +0800)]
wifi: rtw89: reference quota mode when setting Tx power

Reference the current quota mode to avoid misleading warnings.
This patch is required after supporting DBCC quota mode.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240209065229.34515-11-pkshih@realtek.com
7 months agowifi: rtw89: 8922a: implement AP mode related reg for BE generation
Chih-Kang Chang [Fri, 9 Feb 2024 06:52:27 +0000 (14:52 +0800)]
wifi: rtw89: 8922a: implement AP mode related reg for BE generation

Modify reg for BE generation when AP stop, otherwise have warning
messages "Polling beacon packet empty fail".

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240209065229.34515-10-pkshih@realtek.com
7 months agowifi: rtw89: 8922a: correct register definition and merge IO for ctrl_nbtg_bt_tx()
Ping-Ke Shih [Fri, 9 Feb 2024 06:52:26 +0000 (14:52 +0800)]
wifi: rtw89: 8922a: correct register definition and merge IO for ctrl_nbtg_bt_tx()

ctrl_nbtg_bt_tx is used to control AGC settings under non-shared path
condition, which is affected by BT TX. To speed up IO, merge continual
bit mask into one IO. Also, correct a register definition.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240209065229.34515-9-pkshih@realtek.com
7 months agowifi: rtw89: differentiate narrow_bw_ru_dis setting according to chip gen
Zong-Zhe Yang [Fri, 9 Feb 2024 06:52:25 +0000 (14:52 +0800)]
wifi: rtw89: differentiate narrow_bw_ru_dis setting according to chip gen

When there are OBSS that cannot interpret 26-tone RU transmissions,
we should disable 26-tone RU HE TB PPDU transmissions. So, add registers
accordingly.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240209065229.34515-8-pkshih@realtek.com
7 months agowifi: rtw89: use PLCP information to match BSS_COLOR and AID
Ping-Ke Shih [Fri, 9 Feb 2024 06:52:24 +0000 (14:52 +0800)]
wifi: rtw89: use PLCP information to match BSS_COLOR and AID

Hardware can use spatial reuse to reduce interference in OBSS environment,
and originally use MAC header to match BSS color and AID. Change to use
PLCP to match them earlier to prevent margin timing.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240209065229.34515-7-pkshih@realtek.com
7 months agowifi: rtw89: mac: reset PHY-1 hardware when going to enable/disable
Ping-Ke Shih [Fri, 9 Feb 2024 06:52:23 +0000 (14:52 +0800)]
wifi: rtw89: mac: reset PHY-1 hardware when going to enable/disable

When going to use PHY-1, reset the hardware to make it work properly.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240209065229.34515-6-pkshih@realtek.com
7 months agowifi: rtw89: mac: correct MUEDCA setting for MAC-1
Ping-Ke Shih [Fri, 9 Feb 2024 06:52:22 +0000 (14:52 +0800)]
wifi: rtw89: mac: correct MUEDCA setting for MAC-1

Consider mac_idx as an argument to set this register to disable QoS NULL
update MUEDCA timer.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240209065229.34515-5-pkshih@realtek.com
7 months agowifi: rtw89: mac: return held quota of DLE when changing MAC-1
Ping-Ke Shih [Fri, 9 Feb 2024 06:52:21 +0000 (14:52 +0800)]
wifi: rtw89: mac: return held quota of DLE when changing MAC-1

DLE (data link engine) could hold quota when we are going to enable/disable
MAC-1 block, so trigger hardware to return all held quota.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240209065229.34515-4-pkshih@realtek.com
7 months agowifi: rtw89: load BB parameters to PHY-1
Ping-Ke Shih [Fri, 9 Feb 2024 06:52:20 +0000 (14:52 +0800)]
wifi: rtw89: load BB parameters to PHY-1

We are going to support MLO/DBCC, so need to load parameter table to
PHY-1 as well.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240209065229.34515-3-pkshih@realtek.com
7 months agowifi: rtw89: correct PHY register offset for PHY-1
Ping-Ke Shih [Fri, 9 Feb 2024 06:52:19 +0000 (14:52 +0800)]
wifi: rtw89: correct PHY register offset for PHY-1

PHY-1 can be seen as a copy of PHY-0, and the difference is their base
register address, so add a function to get offset to access PHY-1.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240209065229.34515-2-pkshih@realtek.com
7 months agowifi: brcmfmac: do not cast hidden SSID attribute value to boolean
Alexey Berezhok [Thu, 8 Feb 2024 08:51:21 +0000 (11:51 +0300)]
wifi: brcmfmac: do not cast hidden SSID attribute value to boolean

In 'brcmf_cfg80211_start_ap()', not assume that
NL80211_HIDDEN_SSID_NOT_IN_USE is zero but prefer
an explicit check instead. Compile tested only.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Alexey Berezhok <a@bayrepo.ru>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240208085121.2430-1-a@bayrepo.ru
7 months agowifi: mwifiex: Refactor 1-element array into flexible array in struct mwifiex_ie_type...
Kees Cook [Wed, 7 Feb 2024 10:30:33 +0000 (02:30 -0800)]
wifi: mwifiex: Refactor 1-element array into flexible array in struct mwifiex_ie_types_chan_list_param_set

struct mwifiex_ie_types_chan_list_param_set::chan_scan_param is treated
as a flexible array, so convert it into one so that it doesn't trip
the array bounds sanitizer[1]. Only a few places were using sizeof()
on the whole struct, so adjust those to follow the calculation pattern
to avoid including the trailing single element.

Examining binary output differences doesn't appear to show any literal
size values changing, though it is obfuscated a bit by the compiler
adjusting register usage and stack spill slots, etc.

Link: https://github.com/KSPP/linux/issues/51
Cc: Brian Norris <briannorris@chromium.org>
Cc: Kalle Valo <kvalo@kernel.org>
Cc: Dmitry Antipov <dmantipov@yandex.ru>
Cc: Johannes Berg <johannes.berg@intel.com>
Cc: zuoqilin <zuoqilin@yulong.com>
Cc: Ruan Jinjie <ruanjinjie@huawei.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Gustavo A. R. Silva <gustavoars@kernel.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240207103024.make.423-kees@kernel.org
7 months agowifi: wilc1000: correct CRC7 calculation
David Mosberger-Tang [Wed, 7 Feb 2024 05:07:42 +0000 (05:07 +0000)]
wifi: wilc1000: correct CRC7 calculation

Document

    ATWILC1000/ATWILC3000
    Baremetal Wi-Fi/BLE Link Controller Software Design Guide

    https://tinyurl.com/yer2xhyc

says that bit 0 of the CRC7 code must always be a 1.

I confirmed that today with a logic analyzer: setting bit 0 causes
wilc1000 to accept a command with CRC7 enabled, whereas clearing bit 0
causes wilc1000 to reject the command with a CRC error.

Signed-off-by: David Mosberger-Tang <davidm@egauge.net>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240207050736.2717641-1-davidm@egauge.net
7 months agowifi: rtw89: chan: MCC take reconfig into account
Zong-Zhe Yang [Tue, 6 Feb 2024 03:06:24 +0000 (11:06 +0800)]
wifi: rtw89: chan: MCC take reconfig into account

During mac80211 reconfig, chanctx ops of multiple channels might not
be called in order as normal cases. However, we expect the first active
chanctx always to be put at our sub entity index 0. So, if it does not,
we do a swap there. Besides, reconfig won't allocate a new chanctx object.
So, we should reset the reference count when ops add chanctx.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240206030624.23382-7-pkshih@realtek.com
7 months agowifi: rtw89: chan: move handling from add/remove to assign/unassign for MLO
Zong-Zhe Yang [Tue, 6 Feb 2024 03:06:23 +0000 (11:06 +0800)]
wifi: rtw89: chan: move handling from add/remove to assign/unassign for MLO

After MLO, we will need to consider not only active chanctx but also active
interfaces (roles) to decide entity things. So in advance, we move handling
from chanctx_ops::add/remove to chanctx_ops::assign_vif/unassign_vif. Then,
we can recalculate and aware active interfaces' changes.

For now, behavior should not be really different, since active chanctx and
active interface are one-to-one mapping before MLO.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240206030624.23382-6-pkshih@realtek.com
7 months agowifi: rtw89: chan: tweak weight recalc ahead before MLO
Zong-Zhe Yang [Tue, 6 Feb 2024 03:06:22 +0000 (11:06 +0800)]
wifi: rtw89: chan: tweak weight recalc ahead before MLO

Originally, we consider weight only based on how many chanctxs that
mac80211 sets. However, we need to consider both active chanctxs and
active interfaces to distinguish MCC (multiple channel concurrent)
from impending MLO.

Although the logic of handling is extended, for now, behavior might
not be different under current condition.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240206030624.23382-5-pkshih@realtek.com
7 months agowifi: rtw89: chan: tweak bitmap recalc ahead before MLO
Zong-Zhe Yang [Tue, 6 Feb 2024 03:06:21 +0000 (11:06 +0800)]
wifi: rtw89: chan: tweak bitmap recalc ahead before MLO

Originally, we just declared two sub-entity, and according to rolling
down mechanism, we ensured that index 0 contained sub-entity as long
as there are sub-entity. So, we could use for-loop after deciding the
last index.

But, we are preparing to expand num of sub-entity for MLO. Then, there
won't be just two sub-entity. And, there might be holes between two bits
in the bitmap. So, we cannot simply do for-loop as before. Instead, we
need to follow the set bits.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240206030624.23382-4-pkshih@realtek.com
7 months agowifi: rtw89: chan: add sub-entity swap function to cover replacing
Zong-Zhe Yang [Tue, 6 Feb 2024 03:06:20 +0000 (11:06 +0800)]
wifi: rtw89: chan: add sub-entity swap function to cover replacing

Originally, we replaced sub-entity of index 0 with another one in some
cases. However, we will need a swap here in following implementations.
So, we introduce it ahead and change code from replacing to swapping.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240206030624.23382-3-pkshih@realtek.com
7 months agowifi: rtw89: drop TIMING_BEACON_ONLY and sync beacon TSF by self
Zong-Zhe Yang [Tue, 6 Feb 2024 03:06:19 +0000 (11:06 +0800)]
wifi: rtw89: drop TIMING_BEACON_ONLY and sync beacon TSF by self

Some of our calculation during concurrent mode depend on last beacon
TSF. Originally, we just set IEEE80211_HW_TIMING_BEACON_ONLY and get
what we want from mac80211. But, IEEE80211_HW_TIMING_BEACON_ONLY will
be restricted once we declare MLO.

Since we are about to consider the MLO stuffs, so sync beacon TSF by
ourselves now and unset IEEE80211_HW_TIMING_BEACON_ONLY.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240206030624.23382-2-pkshih@realtek.com
7 months agowifi: wilc1000: set preamble size to auto as default in wilc_init_fw_config()
Ajay Singh [Mon, 15 Jan 2024 14:56:30 +0000 (15:56 +0100)]
wifi: wilc1000: set preamble size to auto as default in wilc_init_fw_config()

WILC driver currently applies some default configuration whenever the firmware
is initialized, and sets the default preamble size to short. However, despite
this passed option, firmware is also able to successfully connect to access
points only using long preamble, so this setting does not really enforce short
preambles and is misleading regarding applied configuration.

Update default configuration and make it match the firmware behavior by passing
the existing WILC_FW_PREAMBLE_AUTO value (2 instead of 0). The updated setting
does not really alter firmware behavior since it is still capable to connect to
both short preamble and long preamble access points, but at list the setting now
expresses for real the corresponding firmware behavior.

More info: it has been implemented to address the transmission (Tx) blackout
issue observed in the 802.11b mode. The modification has no impact on the other
modes, which will continue to work as they did in the previous implementation.
This change will allow the 802.11b transmission (2, 5.5, 11Mbps) to use long
preamble.

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Alexis Lothoré <alexis.lothore@bootlin.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240115-wilc_1000_fixes-v1-1-54d29463a738@bootlin.com
7 months agowifi: mwifiex: use kstrtoX_from_user() in debugfs handlers
Dmitry Antipov [Wed, 10 Jan 2024 11:53:11 +0000 (14:53 +0300)]
wifi: mwifiex: use kstrtoX_from_user() in debugfs handlers

Use convenient 'kstrtou32_from_user()' in 'mwifiex_verext_write()'
and 'kstrtobool_from_user()' in 'mwifiex_timeshare_coex_write()',
respectively. Compile tested only.

Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240110115314.421298-1-dmantipov@yandex.ru
7 months agowifi: iwlwifi: fix #ifdef CONFIG_ACPI check
Arnd Bergmann [Mon, 12 Feb 2024 11:23:36 +0000 (12:23 +0100)]
wifi: iwlwifi: fix #ifdef CONFIG_ACPI check

The #ifdef check around the function definition for two functions was
changed without also changing the one on the declaration:

drivers/net/wireless/intel/iwlwifi/fw/uefi.c:359:6: error: redefinition of 'iwl_uefi_get_sgom_table'
  359 | void iwl_uefi_get_sgom_table(struct iwl_trans *trans,
      |      ^~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/net/wireless/intel/iwlwifi/fw/uefi.c:11:
drivers/net/wireless/intel/iwlwifi/fw/uefi.h:294:6: note: previous definition of 'iwl_uefi_get_sgom_table' with type 'void(struct iwl_trans *, struct iwl_fw_runtime *)'
  294 | void iwl_uefi_get_sgom_table(struct iwl_trans *trans, struct iwl_fw_runtime *fwrt)
      |      ^~~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/intel/iwlwifi/fw/uefi.c:392:5: error: redefinition of 'iwl_uefi_get_uats_table'
  392 | int iwl_uefi_get_uats_table(struct iwl_trans *trans,
      |     ^~~~~~~~~~~~~~~~~~~~~~~
drivers/net/wireless/intel/iwlwifi/fw/uefi.h:299:5: note: previous definition of 'iwl_uefi_get_uats_table' with type 'int(struct iwl_trans *, struct iwl_fw_runtime *)'
  299 | int iwl_uefi_get_uats_table(struct iwl_trans *trans,
      |     ^~~~~~~~~~~~~~~~~~~~~~~

Adapt it by merging the declarations into the existing #ifdef block.

Fixes: 74f4cd710705 ("wifi: iwlwifi: take SGOM and UATS code out of ACPI ifdef")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://msgid.link/20240212112343.1148931-1-arnd@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: cfg80211: fix kernel-doc for cfg80211_chandef_primary
Johannes Berg [Fri, 9 Feb 2024 07:04:23 +0000 (08:04 +0100)]
wifi: cfg80211: fix kernel-doc for cfg80211_chandef_primary

This was still referring to cfg80211_chandef_primary_freq(),
fix it.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: b82730bf57b5 ("wifi: cfg80211/mac80211: move puncturing into chandef")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: queue: improve warning for no skb in reclaim
Johannes Berg [Tue, 6 Feb 2024 16:02:14 +0000 (18:02 +0200)]
wifi: iwlwifi: queue: improve warning for no skb in reclaim

We've seen this warning trigger, and while the reason is
probably obvious, I haven't been able to see it yet. Add
more information to the warning message to help identify
the cause. Also print out both index and SSN for all the
messages.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206175739.581427dc81fc.I9a109d02b4349807dce521c693ecd3516ec58cc0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: move BA notif messages before action
Johannes Berg [Tue, 6 Feb 2024 16:02:13 +0000 (18:02 +0200)]
wifi: iwlwifi: mvm: move BA notif messages before action

This is always a bit confusing, the code first does all the
reclaim (with its own debug messages), and _then_ prints it
got a BA notification from firmware. Turn that around.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206175739.825245e0803f.Ic607c57f43eb7c7ff122ffee8f3994fd040d578f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: show skb_mac_gso_segment() failure reason
Johannes Berg [Tue, 6 Feb 2024 16:02:11 +0000 (18:02 +0200)]
wifi: iwlwifi: mvm: show skb_mac_gso_segment() failure reason

If this warning triggers we don't really know why, print out
the return value so we can see it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206175739.b1b907741e85.Ib8ee9c90bd8f1af69969981ff0c63e9cc3123e1f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: remove flags for enable/disable beacon filter
Johannes Berg [Tue, 6 Feb 2024 16:02:10 +0000 (18:02 +0200)]
wifi: iwlwifi: mvm: remove flags for enable/disable beacon filter

The flags argument to enable/disable beacon filtering functions
is unused and always zero, so just remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206175739.2c739c1034a5.I8619949ad4ebd31593d10ece371ebdc6c48db98f@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: don't set replay counters to 0xff
Johannes Berg [Tue, 6 Feb 2024 16:02:09 +0000 (18:02 +0200)]
wifi: iwlwifi: mvm: don't set replay counters to 0xff

The firmware (later) actually uses the values even for keys
that are invalid as far as the host is concerned, later in
rekeying, and then only sets the low 48 bits since the PNs
are only 48 bits over the air. It does, however, compare the
full 64 bits later, obviously causing problems.

Remove the memset and use kzalloc instead to avoid any old
heap data leaking to the firmware. We already init all the
other fields in the struct anyway. This leaves the data set
to zero for any unused fields, so the firmware can look at
them safely even if they're not used right now.

Fixes: 79e561f0f05a ("iwlwifi: mvm: d3: implement RSC command version 5")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206175739.462101146fef.I10f3855b99417af4247cff04af78dcbc6cb75c9c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: pcie: Add new PCI device id and CNVI
Mukesh Sisodiya [Tue, 6 Feb 2024 16:02:08 +0000 (18:02 +0200)]
wifi: iwlwifi: pcie: Add new PCI device id and CNVI

Add the support for a new PCIE device-id 0x272E and a new CNVI
type.

Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206175739.506db9b4a664.Ia2e3a77b880c449ac0e8d20b8cea25e6f07f1b81@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: don't send the smart fifo command if not needed
Emmanuel Grumbach [Tue, 6 Feb 2024 16:02:07 +0000 (18:02 +0200)]
wifi: iwlwifi: mvm: don't send the smart fifo command if not needed

Newer firmware versions no longer needs this command. Don't send it if
the firmware advertises it does not need it.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206175739.527595995aa0.I0381bef1dc815945f2ec194fecc657e5c75bb2ec@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: don't set the MFP flag for the GTK
Emmanuel Grumbach [Tue, 6 Feb 2024 16:02:06 +0000 (18:02 +0200)]
wifi: iwlwifi: mvm: don't set the MFP flag for the GTK

The firmware doesn't need the MFP flag for the GTK, it can even make the
firmware crash. in case the AP is configured with: group cipher TKIP and
MFPC. We would send the GTK with cipher = TKIP and MFP which is of course
not possible.

Fixes: 5c75a208c244 ("wifi: iwlwifi: mvm: support new key API")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206175739.2f2c602ab3c6.If13b2e2fa532381d985c07df130bee1478046c89@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: fw: allow vmalloc for PNVM image
Johannes Berg [Tue, 6 Feb 2024 16:02:05 +0000 (18:02 +0200)]
wifi: iwlwifi: fw: allow vmalloc for PNVM image

This image can be pretty big (I've seen order-7 allocations!),
and we later have to copy it to DMA memory (in newer FW even
there it won't need to be contiguous), so we can easily deal
with it being in vmalloc. Use kvmemdup()/kvfree() for it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206175739.9b4c06b5d533.Idf699b36ec95ee36f530355cd2cb1da297a098f1@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: don't do duplicate detection for nullfunc packets
Johannes Berg [Mon, 5 Feb 2024 19:21:15 +0000 (21:21 +0200)]
wifi: iwlwifi: mvm: don't do duplicate detection for nullfunc packets

For non-QoS nullfunc packets we currently do the duplicate detection,
which seems a bit wrong. Fix the code to check for _any_ instead of
just _qos_ nullfunc.

Also remove setting the RX_FLAG_DUP_VALIDATED flag, we haven't done
anything here; in particular, we haven't checked for multicast in an
MLO scenario.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240205211151.4fea3bd2d4a6.Ib80764f4581d875cff08469016894f7c817c3828@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: fix erroneous queue index mask
Johannes Berg [Mon, 5 Feb 2024 19:21:14 +0000 (21:21 +0200)]
wifi: iwlwifi: mvm: fix erroneous queue index mask

When retrieving the queue index ("SCD SSN") from the TX response,
it's currently masked with 0xFFF. However, now that we have queues
longer than 4k, that became wrong, so make the mask depend on the
hardware family.

This fixes an issue where if we get a single frame reclaim while
in the top half of an 8k long queue, we'd reclaim-wrap the queue
twice (once on this and then again on the next non-single reclaim)
which at least triggers the WARN_ON_ONCE() in iwl_txq_reclaim(),
but could have other negative side effects (such as unmapping a
frame that wasn't transmitted yet, and then taking an IOMMU fault)
as well.

Fixes: 7b3e42ea2ead ("iwlwifi: support multiple tfd queue max sizes for different devices")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240205211151.4148a6ef54e0.I733a70f679c25f9f99097a8dcb3a1f8165da6997@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: avoid garbage iPN
Shaul Triebitz [Mon, 5 Feb 2024 19:21:13 +0000 (21:21 +0200)]
wifi: iwlwifi: mvm: avoid garbage iPN

After waking from D3, we set the iPN given by the firmware.
For some reason, CIPHER_SUITE_AES_CMAC was missed.
That caused copying garbage to the iPN - causing false replays.

(since 'seq' is on the stack, and the iPN from the firmware
was not copied into it, it contains garbage which later is
copied to the iPN key).

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240205211151.2be5b35be30f.I99db8700d01092d22a6d76f1fc1bd5916c9df784@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: always update keys in D3 exit
Shaul Triebitz [Mon, 5 Feb 2024 19:21:12 +0000 (21:21 +0200)]
wifi: iwlwifi: mvm: always update keys in D3 exit

If during D3 there was both a GTK rekey and a
disconnection, when waking up, we must first
update the new keys and then disconnect.

The reason is that when disconnecting we first need
to remove the keys.
Trying to remove invalid keys results in firmware
assert.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240205211151.68cf3974b5d7.Iac9b71a1906ab973aba9baadc9e923b63c0b4945@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: limit pseudo-D3 to 60 seconds
Johannes Berg [Mon, 5 Feb 2024 19:21:11 +0000 (21:21 +0200)]
wifi: iwlwifi: mvm: limit pseudo-D3 to 60 seconds

With unlimited pseudo-D3, we can get stuck here in the read if
the firmware never wakes up. All of our testing infrastructure
however will anyway give up after at most a minute, so there's
no value in that.

Limit this to about a minute to avoid getting stuck with the
RTNL held forever, which basically makes the machine unusable
and then we can't even understand what caused the failure.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240205211151.ca55b3a7fa8d.Id746846f187442ebc689416d2688f2bd9278c0e9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: combine condition/warning
Johannes Berg [Mon, 5 Feb 2024 19:21:10 +0000 (21:21 +0200)]
wifi: iwlwifi: mvm: combine condition/warning

WARN() returns the value of the condition, so it's
nicer to combine the warning and the if.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240205211151.44f63334760e.If0a2cf347a8676a3830c5c3183a257fe11f31419@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: fix the key PN index
Shaul Triebitz [Mon, 5 Feb 2024 19:21:09 +0000 (21:21 +0200)]
wifi: iwlwifi: mvm: fix the key PN index

When waking from D3 (and a GTK rekey happened during
D3), the key itself is saved in iwl_wowlan_status_data::gtk
array, but the PN is saved in iwl_wowlan_status_data::gtk_seq
array.
The indices (of the same key) might differ in both arrays.
Fix using the gtk array index in the gtk_seq array.
Rather, iterate and search for the correct key in the
gtk_seq array.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240205211151.bdd0511c007d.I3325288c64c010a4d008ac4429de1c2b14ef764c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: Keep connection in case of missed beacons during RX
Daniel Amosi [Mon, 5 Feb 2024 19:21:07 +0000 (21:21 +0200)]
wifi: iwlwifi: mvm: Keep connection in case of missed beacons during RX

The client needs to disconnect from AP in case of more than 19 missed
beacons only if no data is coming from that AP, otherwise it needs to
stay connected.

Signed-off-by: Daniel Amosi <amosi.daniel@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240205211151.080195242c18.Ib166fc4e46666165a88e673a4a196cb8f18fdec4@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: properly check if link is active
Miri Korenblit [Mon, 5 Feb 2024 19:21:05 +0000 (21:21 +0200)]
wifi: iwlwifi: properly check if link is active

Before sending SESSION PROTECTION cmd the driver verifies that the
link for which the cmd is going to be sent is active.
The existing code is checking it only for MLD vifs,
but also the deflink (in non-MLD vifs) needs to be active in order
the have a session protection for it.
Fix this by checking if the link is active also for non-MLD vifs

Fixes: 135065837310 ("wifi: iwlwifi: support link_id in SESSION_PROTECTION cmd")
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Link: https://msgid.link/20240205211151.c61820f14ca6.Ibbe0f848f3e71f64313d21642650b6e4bfbe4b39@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: take SGOM and UATS code out of ACPI ifdef
Miri Korenblit [Mon, 5 Feb 2024 19:21:04 +0000 (21:21 +0200)]
wifi: iwlwifi: take SGOM and UATS code out of ACPI ifdef

The BIOS tables SGOM and UATS are read from UEFI, but require
additional tables (WGDS and DSM func 3, respectively) which used to be
read from ACPI only, so the code handling those tables had to be under
ifdef ACPI. But now the driver reads those tables (WGDS and DSM) from
both ACPI and UEFI, so SGOM and UATS code shouldn't be under ifdef ACPI
anymore.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240205211151.dcaa3325773f.I649079c842369dcae3a362842322deca422a61d5@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: don't abort queue sync in CT-kill
Johannes Berg [Mon, 5 Feb 2024 19:21:03 +0000 (21:21 +0200)]
wifi: iwlwifi: mvm: don't abort queue sync in CT-kill

CT kill should stop doing a lot of TX etc. to cool down the
NIC, but we don't stop all commands from going to the NIC,
and as such we shouldn't abort queue sync, since it can get
confused if we do, warning that we do it twice at the same
time etc. Only stop it when we'd also not send it in the
first place.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240205211151.4e0745e2cd97.I311dc623ce68de6a2da3c21c8d84a387844f714a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: define RX queue sync timeout as a macro
Shaul Triebitz [Mon, 5 Feb 2024 19:21:02 +0000 (21:21 +0200)]
wifi: iwlwifi: mvm: define RX queue sync timeout as a macro

define the timeout on RX queues notification as a macro so it will be
clearer.

Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240205211151.a6985ea87751.Iafb7ae13aa58d66512e4b3fa6c75149c75cbc305@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: expand queue sync warning messages
Johannes Berg [Mon, 5 Feb 2024 19:21:01 +0000 (21:21 +0200)]
wifi: iwlwifi: mvm: expand queue sync warning messages

It's a bit tricky to understand what's going on here, add
more data to the warning messages to make that clearer.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240205211151.1df82a509636.I2f71811569a5c48eb166c4caa779af2d6160ad33@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: Declare support for secure LTF measurement
Ilan Peer [Sun, 4 Feb 2024 22:06:15 +0000 (00:06 +0200)]
wifi: iwlwifi: mvm: Declare support for secure LTF measurement

Declare support for secure LTF measurement if the FW supports it.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240204235836.f20d2437c06f.I479df8ab543db2d05c413119ad3eb3936cc86294@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: advertise support for protected ranging negotiation
Avraham Stern [Tue, 6 Feb 2024 11:57:03 +0000 (13:57 +0200)]
wifi: iwlwifi: mvm: advertise support for protected ranging negotiation

Advertise support for protected ranging negotiation if the firmware
supports it.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240206135637.9bb7e13ad18c.I578af1c9836e91069ce318b265bd221f42955992@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: remove one queue sync on BA session stop
Johannes Berg [Sun, 4 Feb 2024 22:06:17 +0000 (00:06 +0200)]
wifi: iwlwifi: mvm: remove one queue sync on BA session stop

As documented in the comment, this queue sync was here to
ensure that an async IWL_MVM_RXQ_NSSN_SYNC queue sync won't
race with setting up a new BA session with the same BAID.
However, we no longer do IWL_MVM_RXQ_NSSN_SYNC queue sync,
so we can remove this as well.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Grumbach, Emmanuel <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240204235836.0a09ab337b54.I0dfe239dc30577a2ff23f910b10e9957364ccc78@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: support EHT for WH
Miri Korenblit [Sun, 4 Feb 2024 22:06:13 +0000 (00:06 +0200)]
wifi: iwlwifi: support EHT for WH

sku_cap_11be_enable should be set to true also for WH.

Fixes: e1374ed25324 ("wifi: iwlwifi: Add support for new CNVi (SC)")
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Link: https://msgid.link/20240204235836.a6d4097cbaca.I8b00fa7b6226b4116cd91f70fb0b15e79b4dee5a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: don't support reduced tx power on ack for new devices
Emmanuel Grumbach [Sun, 4 Feb 2024 22:06:12 +0000 (00:06 +0200)]
wifi: iwlwifi: mvm: don't support reduced tx power on ack for new devices

This is no longer supported by the firmware.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240204235836.768d56206093.I737872ff19f0dbeefca42a239d673f05b9ac06f0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: use system_unbound_wq for debug dump
Johannes Berg [Sun, 4 Feb 2024 22:06:11 +0000 (00:06 +0200)]
wifi: iwlwifi: use system_unbound_wq for debug dump

This can take some time, so it's better to use the unbound
workqueue.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240204235836.75c8d2286f81.I478e9faf422f22ae66c0a113003fea83565c5692@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: remove EHT code from mac80211.c
Johannes Berg [Sun, 4 Feb 2024 22:06:10 +0000 (00:06 +0200)]
wifi: iwlwifi: mvm: remove EHT code from mac80211.c

The code here is the pre-MLD API, but of course older FW
that doesn't support MLD APIs cannot support EHT. Remove
some code that shouldn't be there.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240204235836.bde5a9d87759.I4c69dd94416f92b0f1f53dd57dafecbec643600d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: read mac step from aux register
Miri Korenblit [Sun, 4 Feb 2024 22:06:09 +0000 (00:06 +0200)]
wifi: iwlwifi: read mac step from aux register

in BZ, the mac step is not updated to the HW REV CSR.
For BZ-I, read it from the CNVI aux register
For BZ-U always take B step.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240204235836.dcc18b533f13.I0a6267fa0a142744bcf7500b45f667b596b492c5@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: adjust rx_phyinfo debugfs to MLO
Miri Korenblit [Sun, 4 Feb 2024 22:06:08 +0000 (00:06 +0200)]
wifi: iwlwifi: adjust rx_phyinfo debugfs to MLO

This debugfs entry is used to configure the rx_phyinfo.
Currently we are sending the phy cmd only for the deflink.
Change it to send the cmd for all active links of the vif

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240204235836.a68ee2b6cb58.Iddc47c608ec990b12be0ae5b1ee89bcf6beb0f6a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: mvm: const-ify chandef pointers
Johannes Berg [Sun, 4 Feb 2024 22:06:07 +0000 (00:06 +0200)]
wifi: iwlwifi: mvm: const-ify chandef pointers

In much of the PHY context handling code the chandef
coming from mac80211 is read-only, mark them const
to make that clearer.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240204235836.e7fbd3e26d85.I72d72e61dc5f5fc76c53e32cb60b66237eaedec3@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: Add support for PPAG cmd v5 and PPAG revision 3
Anjaneyulu [Sun, 4 Feb 2024 22:06:06 +0000 (00:06 +0200)]
wifi: iwlwifi: Add support for PPAG cmd v5 and PPAG revision 3

Add support for
- PPAG revision 3 in BIOS to enable PPAG in UHB
- PPAG command version 5, this command allows OEM to control
  enablement of PPAG for LPI for UHB mode in USA and ETSI countries.

Signed-off-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240204235836.d17425824b11.If2c1b29e3c579f4135383681af2d625cfe2cffcd@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: pcie: don't allow hw-rfkill to stop device on gen2
Johannes Berg [Sun, 4 Feb 2024 22:06:05 +0000 (00:06 +0200)]
wifi: iwlwifi: pcie: don't allow hw-rfkill to stop device on gen2

On new devices the HW rfkill shutdown doesn't need to be handled
"as fast as possible", so disallow the immediate shutdown mode
here via documentation and a warning.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240204235836.794c5387e67e.I064365428815ec3135afa345fbbde78449b60203@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: add HONOR to PPAG approved list
Miri Korenblit [Sun, 4 Feb 2024 22:06:04 +0000 (00:06 +0200)]
wifi: iwlwifi: add HONOR to PPAG approved list

Add HONOR to the list of the OEMs that are allowed to use
the PPAG feature

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Link: https://msgid.link/20240204235836.3498abc62910.I156c34206c58ff26e73f705cbda6f1a49b88edda@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: add support to call csa_finish on a link
Aditya Kumar Singh [Tue, 30 Jan 2024 14:09:18 +0000 (19:39 +0530)]
wifi: mac80211: add support to call csa_finish on a link

Currently ieee80211_csa_finish() function finalizes CSA by scheduling a
finalizing worker using the deflink. With MLO, there is a need to do it
on a given link basis.

Pass link ID of the link on which CSA needs to be finalized.

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240130140918.1172387-6-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: start and finalize channel switch on link basis
Aditya Kumar Singh [Tue, 30 Jan 2024 14:09:17 +0000 (19:39 +0530)]
wifi: mac80211: start and finalize channel switch on link basis

Add changes to start a channel switch as well as finalize it on link basis
in order to support CSA with MLO as well.

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240130140918.1172387-5-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: handle set csa/after_csa beacon on per link basis
Aditya Kumar Singh [Tue, 30 Jan 2024 14:09:16 +0000 (19:39 +0530)]
wifi: mac80211: handle set csa/after_csa beacon on per link basis

In order to support CSA with MLO, there is a need to handle the functions
ieee80211_set_csa_beacon() and ieee80211_set_after_csa_beacon() on a per
link basis.

Implement this by making the function argument accept the the link data
instead of the sdata.

Currently, deflink would only be passed. Proper link data will be passed in
a subsequent patch.

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240130140918.1172387-4-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: update beacon counters per link basis
Aditya Kumar Singh [Tue, 30 Jan 2024 14:09:15 +0000 (19:39 +0530)]
wifi: mac80211: update beacon counters per link basis

Currently, function to update beacon counter uses deflink to fetch
the beacon and then update the counter. However, with MLO, there is
a need to update the counter for the beacon in a particular link.

Add support to use link_id in order to fetch the beacon from a particular
link data during beacon update counter.

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240130140918.1172387-3-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: cfg80211: send link id in channel_switch ops
Aditya Kumar Singh [Tue, 30 Jan 2024 14:09:14 +0000 (19:39 +0530)]
wifi: cfg80211: send link id in channel_switch ops

Currently, during channel switch, no link id information is passed down.
In order to support channel switch during Multi Link Operation, it is
required to pass link id as well.

Add changes to pass link id in the channel_switch cfg80211_ops.

Signed-off-by: Aditya Kumar Singh <quic_adisi@quicinc.com>
Link: https://msgid.link/20240130140918.1172387-2-quic_adisi@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: refactor STA CSA parsing flows
Michael-CY Lee [Fri, 22 Dec 2023 01:09:14 +0000 (09:09 +0800)]
wifi: mac80211: refactor STA CSA parsing flows

The new Wi-Fi Standard (IEEE Std 802.11-2020 9.4.2.160) specifies that
the Wide Bandwidth Channel Switch (WBCS) Element subfields have the same
definitions as VHT operation information if the operating band is not
S1G.

The problem comes when the BSS is in 6 GHz band, the STA parses the WBCS
Element by ieee80211_chandef_vht_oper(), which checks the capabilities for
HT/VHT mode, not HE/EHT mode.

This patch refactors STA CSA parsing flow so that the corresponding
capabilities can be checked. Also, it adds the way to use op_class in ECSA
Element to build a new chandef.

In summary, the new steps for STA to handle CSA event are:
1. build the new chandef from one of the CSA-related (Sub)Elements in
   following order,
   - Bandwidth Indication (Sub)Element
   - Wide Bandwidth Channel Switch (Sub)Element
   - Operating class in Extended Channel Switch Announcement Element
   - Channel Switch Announcement Element
2. convert the new chandef into operation information according to the
   operating band in order to check if the new chandef fits STA's
   capabilities.
3. downgrade the bandwidth until current bandwidth is not disabled.

Co-developed-by: Money Wang <money.wang@mediatek.com>
Signed-off-by: Michael-CY Lee <michael-cy.lee@mediatek.com>
Link: https://msgid.link/20231222010914.6521-3-michael-cy.lee@mediatek.com
[rebase on top of the changes with struct ieee80211_conn_settings,
 prefer leXY_encode_bits()]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: cfg80211: Add utility for converting op_class into chandef
Michael-CY Lee [Fri, 22 Dec 2023 01:09:13 +0000 (09:09 +0800)]
wifi: cfg80211: Add utility for converting op_class into chandef

This utility is used in STA CSA handling. The op_class in the ECSA
Element can be converted into chandef.

Co-developed-by: Money Wang <money.wang@mediatek.com>
Signed-off-by: Michael-CY Lee <michael-cy.lee@mediatek.com>
Link: https://msgid.link/20231222010914.6521-2-michael-cy.lee@mediatek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: iwlwifi: return negative -EINVAL instead of positive EINVAL
Dan Carpenter [Tue, 6 Feb 2024 13:08:52 +0000 (16:08 +0300)]
wifi: iwlwifi: return negative -EINVAL instead of positive EINVAL

The '-' character is missing in -EINVAL.

Fixes: fc7214c3c986 ("wifi: iwlwifi: read DSM functions from UEFI")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://msgid.link/f0391316-ab30-4664-96ac-03445ab2aeba@moroto.mountain
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: don't use sband->band early
Johannes Berg [Wed, 7 Feb 2024 10:59:20 +0000 (11:59 +0100)]
wifi: mac80211: don't use sband->band early

Some drivers may (notably mt76 does) not set up sband->band
before registering, and cfg80211 will fill it in later. But
since the HT/HE capability check mac80211 required it to be
initialized already, otherwise failing things.  This really
isn't necessary though since the code is iterating the list
of bands, and has the 'band' variable available.  Fix it to
not require the sband->band to be initialized already.

Fixes: f04d2c247e04 ("wifi: mac80211: disallow drivers with HT wider than HE")
Reported-by: Bert Karwatzki <spasswolf@web.de>
Debugged-by: Bert Karwatzki <spasswolf@web.de>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218466
Link: https://msgid.link/20240207115920.43cbedffb5c3.I4968e12275a3f95926e3f3ccae81e50f23fe4d4d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211_hwsim: add missing kernel-doc
Johannes Berg [Tue, 6 Feb 2024 12:45:56 +0000 (13:45 +0100)]
wifi: mac80211_hwsim: add missing kernel-doc

Some kernel-doc is missing here, add it.

Link: https://msgid.link/20240206134555.eb95c1dfc1f0.Ibaf8b3249d9de59358bf6503fe4a186d9ac6544d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: add missing kernel-doc for fast_tx_check
Johannes Berg [Tue, 6 Feb 2024 12:45:55 +0000 (13:45 +0100)]
wifi: mac80211: add missing kernel-doc for fast_tx_check

This was added earlier, add kernel-doc for it.

Link: https://msgid.link/20240206134555.6354b0ac8610.Ib90d3651834c556b73697388f59bd396a1f6f9b0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: clarify vif handling in TX dequeue
Johannes Berg [Wed, 31 Jan 2024 15:49:11 +0000 (16:49 +0100)]
wifi: mac80211: clarify vif handling in TX dequeue

The vif pointer at least looks like it can actually be NULL
in some cases such as the monitor-mode vif, causing static
checkers to complain with the immediate derefence. In these
cases the sta pointer will also be NULL, but clarify it in
the code anyway.

Link: https://msgid.link/20240131164910.60066625a239.Idfb6a5a9876f9f631eae760055e1c4018259a971@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: allow CSA to same channel
Johannes Berg [Mon, 29 Jan 2024 19:35:45 +0000 (20:35 +0100)]
wifi: mac80211: allow CSA to same channel

This could be used e.g. for temporarily sending quiet
(mode=1 in CSA/ECSA), or updating bandwidth. This is
also useful for testing, since it's something that an
AP may do and the client needs to be prepared. Simply
allow it.

Link: https://msgid.link/20240129203544.ef7258d5790d.Idafe22e41621757458d4960659b9621853f7104d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: convert ieee80211_ie_build_eht_cap() to SKB use
Johannes Berg [Mon, 29 Jan 2024 19:19:36 +0000 (20:19 +0100)]
wifi: mac80211: convert ieee80211_ie_build_eht_cap() to SKB use

Convert ieee80211_ie_build_eht_cap() to the SKB-put function
style, renaming it to ieee80211_put_eht_cap().

Link: https://msgid.link/20240129202041.ece9769e3c94.Ibd17bea6311f0c7ba56f6c1803fa3208abaaebb9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: convert ieee80211_ie_build_he_cap() to SKB use
Johannes Berg [Mon, 29 Jan 2024 19:19:35 +0000 (20:19 +0100)]
wifi: mac80211: convert ieee80211_ie_build_he_cap() to SKB use

Convert ieee80211_ie_build_he_cap() to the SKB-put function
style, renaming it to ieee80211_put_he_cap().

Link: https://msgid.link/20240129202041.e6ef888980d9.Ied9e014314b5d27611e693e3d4cb63bdc8d7de17@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: move element parsing to a new file
Johannes Berg [Mon, 29 Jan 2024 19:19:34 +0000 (20:19 +0100)]
wifi: mac80211: move element parsing to a new file

This code got really big, move it to a new file.
Pure code move.

Link: https://msgid.link/20240129202041.7f27f7c895e4.I0adfc28bd656a4d44c2bf47966277eecf56cbaa0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: start building elements in SKBs
Johannes Berg [Mon, 29 Jan 2024 19:19:33 +0000 (20:19 +0100)]
wifi: mac80211: start building elements in SKBs

The building of elements is really mess, and really the only
reason we're not doing it in SKBs in the first place is that
the scan code in ieee80211_build_preq_ies() doesn't.

Convert ieee80211_build_preq_ies() to use an SKB internally
so that we can gradually convert other things to ..._put_*()
style interfaces.

Link: https://msgid.link/20240129202041.c3a8e3c2cc99.I9d9920858c30ae5154719783933de0d7bc2a2cb9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: simplify adding supported rates
Johannes Berg [Mon, 29 Jan 2024 19:19:32 +0000 (20:19 +0100)]
wifi: mac80211: simplify adding supported rates

Make this a new-style "put" function, and change the
parameters to pass more information directly, this
makes it usable also for the MLME code.

Link: https://msgid.link/20240129202041.f604a03bd728.I8c798ea45b8479ac9982e77d0378af11a09ccdaf@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: tdls: use ieee80211_put_he_6ghz_cap()
Johannes Berg [Mon, 29 Jan 2024 19:19:31 +0000 (20:19 +0100)]
wifi: mac80211: tdls: use ieee80211_put_he_6ghz_cap()

We don't need to use the write function here since we already
have an SKB, so use ieee80211_put_he_6ghz_cap() with the SMPS
mode taken from the link we're using.

Link: https://msgid.link/20240129202041.6454ac78ff8c.I7152e3c27645105478c68d40ca493feb27cac6bf@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: rename ieee80211_ie_build_he_6ghz_cap()
Johannes Berg [Mon, 29 Jan 2024 19:19:30 +0000 (20:19 +0100)]
wifi: mac80211: rename ieee80211_ie_build_he_6ghz_cap()

The term 'IE' isn't really in use in the spec, and I want
to rework all of this to use SKBs as the primary method
for building elements. Rename this one already.

Link: https://msgid.link/20240129202041.b8064a4e73b5.I8d2f4526562029107c6414c6cda378b300b1b0b0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: limit HE RU capabilities when limiting bandwidth
Johannes Berg [Mon, 29 Jan 2024 19:19:29 +0000 (20:19 +0100)]
wifi: mac80211: limit HE RU capabilities when limiting bandwidth

When limiting a station's supported bandwidth while connecting,
also limit various other HE capabilities according to the bandwidth
needed for them.

Link: https://msgid.link/20240129202041.34be99efca25.I02a695961bc6aadd37768b17c50fcdec4427d460@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: adjust EHT capa when lowering bandwidth
Johannes Berg [Mon, 29 Jan 2024 19:19:28 +0000 (20:19 +0100)]
wifi: mac80211: adjust EHT capa when lowering bandwidth

If intending to associate with a lower bandwidth, remove capabilities
related to 320 MHz from the EHT capabilities element. Also change the
EHT MCS-NSS set accordingly: if just reducing 320->160 or similar the
format doesn't change, just cut off the last bytes. If changing from
higher bandwidth to 20 MHz only EHT STA, adjust the format.

Note that this also requires adjusting the caller in mlme.c since the
data written can now be shorter than it determined. We need to clean
all that up. Since the other callers pass NULL for the conn limit, we
don't need to change things there.

Link: https://msgid.link/20240129202041.b5f6df108c77.I0d8ea04079c61cb3744cc88625eeaf0d4776dc2b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: simplify HE/EHT element length functions
Johannes Berg [Mon, 29 Jan 2024 19:19:27 +0000 (20:19 +0100)]
wifi: mac80211: simplify HE/EHT element length functions

We don't need to pass the iftype there, we already have it
in the sdata. Simplify this code.

Link: https://msgid.link/20240129202041.5890eb1d4184.Ibce7e5abcc7887630da03ac2263d8004ec541418@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: disallow basic multi-link element in per-STA profile
Johannes Berg [Mon, 29 Jan 2024 19:06:54 +0000 (20:06 +0100)]
wifi: mac80211: disallow basic multi-link element in per-STA profile

There really shouldn't be a basic multi-link element in any
per-STA profile in an association response, it's not clear
what that would really mean. Refuse connecting in this case
since the AP isn't following the spec.

Link: https://msgid.link/20240129200652.23f1e3b337f1.Idd2e43cdbfe3ba15b3e9b8aeb54c8115587177a0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: disambiguate element parsing errors
Johannes Berg [Mon, 29 Jan 2024 19:06:53 +0000 (20:06 +0100)]
wifi: mac80211: disambiguate element parsing errors

Let the element parsing function return what kind of error
was encountered, as a bitmap, even if nothing currently
checks for which specific error it was, we'll use it later.

Link: https://msgid.link/20240129200652.1a69f2a31ec7.I55b86561d64e7ef1504c73f6f2813c33030c8136@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: implement MLO multicast deduplication
Johannes Berg [Mon, 29 Jan 2024 19:04:57 +0000 (20:04 +0100)]
wifi: mac80211: implement MLO multicast deduplication

If the vif is an MLD then it may receive multicast from
different links, and should drop those frames according
to the SN. Implement that.

Link: https://msgid.link/20240129200456.693b77d14b44.I491846f2bea0058c14eab6422962c10bfae9b675@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: add/use ieee80211_get_sn()
Johannes Berg [Mon, 29 Jan 2024 19:04:56 +0000 (20:04 +0100)]
wifi: mac80211: add/use ieee80211_get_sn()

This will also be useful for MLO duplicate multicast
detection, but add it already here and use it in one
place that trivially converts.

Link: https://msgid.link/20240129200456.f0ff49c80006.I850d2785ab1640e56e262d3ad7343b87f6962552@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: cfg80211/mac80211: move puncturing into chandef
Johannes Berg [Mon, 29 Jan 2024 18:34:49 +0000 (19:34 +0100)]
wifi: cfg80211/mac80211: move puncturing into chandef

Aloka originally suggested that puncturing should be part of
the chandef, so that it's treated correctly. At the time, I
disagreed and it ended up not part of the chandef, but I've
now realized that this was wrong. Even for clients, the RX,
and perhaps more importantly, CCA configuration needs to take
puncturing into account.

Move puncturing into the chandef, and adjust all the code
accordingly. Also add a few tests for puncturing in chandef
compatibility checking.

Link: https://lore.kernel.org/linux-wireless/20220214223051.3610-1-quic_alokad@quicinc.com/
Suggested-by: Aloka Dixit <quic_alokad@quicinc.com>
Link: https://msgid.link/20240129194108.307183a5d2e5.I4d7fe2f126b2366c1312010e2900dfb2abffa0f6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: use cfg80211_chandef_primary_freq()
Johannes Berg [Mon, 29 Jan 2024 18:34:48 +0000 (19:34 +0100)]
wifi: mac80211: use cfg80211_chandef_primary_freq()

Instead of calculating the new primary 40/80/160 MHz
center frequency here, use the new helper function from
cfg80211.

Link: https://msgid.link/20240129194108.eb59d6433d18.I74b745f0d1a32e779fb25d50c56407be7c35b840@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: cfg80211: simplify cfg80211_chandef_compatible()
Johannes Berg [Mon, 29 Jan 2024 18:34:47 +0000 (19:34 +0100)]
wifi: cfg80211: simplify cfg80211_chandef_compatible()

Simplify cfg80211_chandef_compatible() a bit by switching
c1 and c2 around so that c1 is always the narrower one
(once they're not identical or narrow/S1G). Then we can
just check the various primary channels and exit with the
wider one (c2), or NULL.

Also refactor the primary 40/80/160 function to not have
all the calculations hard-coded, and use a wrapper around
it to check primary 40/80/160 compatibility.

While at it, add some kunit tests for this functionality.

Also expose the new cfg80211_chandef_primary_freq() to
drivers, mac80211 will use it.

Link: https://msgid.link/20240129194108.be3e6eccaba3.I8399c2ff1435d7378e5837794cb5aa6dd2ee1416@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: wireless: declare different S1G chandefs incompatible
Johannes Berg [Mon, 29 Jan 2024 18:34:46 +0000 (19:34 +0100)]
wifi: wireless: declare different S1G chandefs incompatible

It doesn't look like we can get into this code, but make it
more robust and declare two S1G chandefs to be incompatible
unless they're identical.

Link: https://msgid.link/20240129194108.b28fb0644a8c.I9297ada5cf1baf00dbbdf8fcffd1806883489fc9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: refactor puncturing bitmap extraction
Johannes Berg [Mon, 29 Jan 2024 18:34:45 +0000 (19:34 +0100)]
wifi: mac80211: refactor puncturing bitmap extraction

Add a new inline helper function to ieee80211.h to
extract the disabled subchannels bitmap from an EHT
operation element, and use that in mac80211 where
we do that.

Link: https://msgid.link/20240129194108.d9f50dcec8d0.I8b08cbc2490a734fafcce0fa0fc328211ba6f10b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: cfg80211: move puncturing validation code
Johannes Berg [Mon, 29 Jan 2024 18:34:44 +0000 (19:34 +0100)]
wifi: cfg80211: move puncturing validation code

Upcoming patches will move the puncturing bitmap into the
chandef, so chandef validation will need to check for correct
puncturing. Purely move the code first so later changes are
easier to review.

Link: https://msgid.link/20240129194108.1ca184427c76.I077deb8d52c4648eac145b63f88b6c5a3b920ddc@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
7 months agowifi: mac80211: validate assoc response channel config
Johannes Berg [Mon, 29 Jan 2024 18:34:43 +0000 (19:34 +0100)]
wifi: mac80211: validate assoc response channel config

Due to the earlier restructuring we now mostly ignore
the channel configuration in the association response,
apart from the HT/VHT checks we had.

Don't do that, but parse it and update, also dropping the
association if the AP changed its mode in the response.

Link: https://msgid.link/20240129194108.b3efa5eae60c.I1b70c9fd56781b22cdfdca55d34d69f7d0733e31@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>