wifi: mt76: move wed common utilities in wed.c

Introduce wed.c in order to collect mt76 wed common codebase used by
mt7915 and mt7996 drivers.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: mark GCMP IGTK unsupported

Since the FW does not support to handle the integrity and validation of
IGTK in GCMP mode, return -EOPNOTSUPP to let it be handled by upper layer.

Signed-off-by: Michael-CY Lee <michael-cy.lee@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mac80211: simplify non-chanctx drivers

There are still surprisingly many non-chanctx drivers, but in
mac80211 that code is a bit awkward. Simplify this by having
those drivers assign 'emulated' ops, so that the mac80211 code
can be more unified between non-chanctx/chanctx drivers. This
cuts the number of places caring about it by about 15, which
are scattered across - now they're fewer and no longer in the
channel context handling.

Link: https://msgid.link/20240129194108.6d0ead50f5cf.I60d093b2fc81ca1853925a4d0ac3a2337d5baa5b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: mt76: connac: add beacon protection support for mt7996

Implement beacon protection feature for mt7996 chipsets, and also do
some cleanup on the set key routine.

Co-developed-by: Rudra Shahi <rudra.shahi@mediatek.com>
Signed-off-by: Rudra Shahi <rudra.shahi@mediatek.com>
Signed-off-by: Allen Ye <allen.ye@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: switch to mcu command for TX GI report

During runtime, the GI value in the WTBL is not updated in real-time. To
obtain the latest results for the TX GI, switch to use an MCU command.

Signed-off-by: Benjamin Lin <benjamin-jw.lin@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: add txpower setting support

Add support for setting txpower from upper layer and configuring per-rate
txpower limit table.

Co-developed-by: Allen Ye <allen.ye@mediatek.com>
Signed-off-by: Allen Ye <allen.ye@mediatek.com>
Co-developed-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: connac: add beacon duplicate TX mode support for mt7996

For connac3 chipsets, setting of spe_idx is moved from TX descriptor to
the fixed rate table. This patch implements the setting to support
duplicate TX mode for beacon.

Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: connac: add thermal protection support for mt7996

Implement thermal protection commands and support Linux cooling device
control for mt7996 chipsets.

Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: add wed tx support

Similar to MT7915, enable Wireless Ethernet Ditpatcher for MT7996
to offload traffic received from the LAN nic and transmitted on the
WLAN one

Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: remove periodic MPDU TXS request

Remove periodic MPDU TXS request. Get TID and FrameType from SKB
instead of TXWI, which is empty for Data Frame after MPDU TXS request
is removed, hence prohibiting the establishment of TX BA session.

Signed-off-by: Benjamin Lin <benjamin-jw.lin@mediatek.com>
Signed-off-by: Yi-Chia Hsieh <yi-chia.hsieh@mediatek.com>
Signed-off-by: Money Wang <Money.Wang@mediatek.com>
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Evelyn Tsai <evelyn.tsai@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: Add mcu commands for getting sta tx statistic

Per peer Tx/Rx statistic can only be obtained by querying WM when WED is
on. This patch switches to periodic event reporting in the case of WED
being enabled.

Signed-off-by: Yi-Chia Hsieh <yi-chia.hsieh@mediatek.com>
Signed-off-by: Money Wang <Money.Wang@mediatek.com>
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Evelyn Tsai <evelyn.tsai@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: get tx_retries and tx_failed from txfree

Retrieve tx retries/failed counts from 'txfree done' events and report
them via mt7996_sta_statistics().

Signed-off-by: Yi-Chia Hsieh <yi-chia.hsieh@mediatek.com>
Signed-off-by: Money Wang <Money.Wang@mediatek.com>
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Evelyn Tsai <evelyn.tsai@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: update beacon size limitation

To accommodate 11v MBSSID IE and support maximum 16 MBSSIDs, expand the
beacon size limitation for beacon and inband discovery commands.

Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Co-developed-by: Money Wang <money.wang@mediatek.com>
Signed-off-by: Money Wang <money.wang@mediatek.com>
Signed-off-by: MeiChia Chiu <meichia.chiu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: fix clang-specific fortify warnings

When compiling with clang 16.0.6 and CONFIG_FORTIFY_SOURCE=y, I've
noticed the following (somewhat confusing due to absence of an actual
source code location):

In file included from drivers/net/wireless/mediatek/mt76/mt792x_core.c:4:
In file included from ./include/linux/module.h:13:
In file included from ./include/linux/stat.h:19:
In file included from ./include/linux/time.h:60:
In file included from ./include/linux/time32.h:13:
In file included from ./include/linux/timex.h:67:
In file included from ./arch/x86/include/asm/timex.h:5:
In file included from ./arch/x86/include/asm/processor.h:23:
In file included from ./arch/x86/include/asm/msr.h:11:
In file included from ./arch/x86/include/asm/cpumask.h:5:
In file included from ./include/linux/cpumask.h:12:
In file included from ./include/linux/bitmap.h:11:
In file included from ./include/linux/string.h:254:
./include/linux/fortify-string.h:592:4: warning: call to '__read_overflow2_field'
declared with 'warning' attribute: detected read beyond size of field (2nd
parameter); maybe use struct_group()? [-Wattribute-warning]
__read_overflow2_field(q_size_field, size);

In file included from drivers/net/wireless/mediatek/mt76/mt7915/main.c:4:
In file included from ./include/linux/etherdevice.h:20:
In file included from ./include/linux/if_ether.h:19:
In file included from ./include/linux/skbuff.h:15:
In file included from ./include/linux/time.h:60:
In file included from ./include/linux/time32.h:13:
In file included from ./include/linux/timex.h:67:
In file included from ./arch/x86/include/asm/timex.h:5:
In file included from ./arch/x86/include/asm/processor.h:23:
In file included from ./arch/x86/include/asm/msr.h:11:
In file included from ./arch/x86/include/asm/cpumask.h:5:
In file included from ./include/linux/cpumask.h:12:
In file included from ./include/linux/bitmap.h:11:
In file included from ./include/linux/string.h:254:
./include/linux/fortify-string.h:592:4: warning: call to '__read_overflow2_field'
declared with 'warning' attribute: detected read beyond size of field (2nd
parameter); maybe use struct_group()? [-Wattribute-warning]
__read_overflow2_field(q_size_field, size);

In file included from drivers/net/wireless/mediatek/mt76/mt7996/main.c:6:
In file included from drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h:9:
In file included from ./include/linux/interrupt.h:8:
In file included from ./include/linux/cpumask.h:12:
In file included from ./include/linux/bitmap.h:11:
In file included from ./include/linux/string.h:254:
./include/linux/fortify-string.h:592:4: warning: call to '__read_overflow2_field'
declared with 'warning' attribute: detected read beyond size of field (2nd
parameter); maybe use struct_group()? [-Wattribute-warning]
__read_overflow2_field(q_size_field, size);

The compiler actually complains on 'mt7915_get_et_strings()',
'mt792x_get_et_strings()' and 'mt7996_get_et_strings()' due to the same
reason: fortification logic inteprets call to 'memcpy()' as an attempt
to copy the whole array from its first member and so issues an overread
warning. These warnings may be silenced by passing an address of the whole
array and not the first member to 'memcpy()'.

Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: only set vif teardown cmds at remove interface

Only send commands that disable vif when removing interface, this
reduces some unnecessary bss_info and sta_rec commands, especially for
station interface.

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: fix wmm queue mapping

Firmware uses access class index (ACI) for wmm parameters update, so
convert mac80211 queue to ACI in mt7996_conf_tx().

Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: fix race condition related to checking tx queue fill status

When drv_tx calls race against local tx scheduling, the queue fill status checks
can potentially race, leading to dma queue entries being overwritten.
Fix this by deferring packets from drv_tx calls to the tx worker, in order to
ensure that all regular queue tx comes from the same context.

Reported-by: Ryder Lee <Ryder.Lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: move rate info in mt76_vif

This is a preliminary patch to introduce mt76_connac3 mac library used
by WiFi7 chipsets (e.g. mt7996).

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: move ampdu_state in mt76_wcid

ampdu_state field is used by most of the drivers, so move it in
mt76_wcid structure.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: rely on shared poll_list field

Rely on poll_list field in mt76_wcid structure and get rid of
private copy.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: rely on shared sta_poll_list and sta_poll_lock

Rely on sta_poll_list and sta_poll_lock fields in mt76_dev structure
and get rid of private copies.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: connac: add support to set ifs time by mcu command

There's a race between driver and fw on some tx/rx control registers
when setting ifs, which will cause accidental hw queue pause problems.
Avoid this by setting ifs time with bss_info mcu command.

Reviewed-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: move radio ctrl commands to proper functions

Move radio enable/disable commands into functions for configuring
per-phy radio.

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt76: mt7996: rely on mt76_sta_stats in mt76_wcid

mt76 now accounts station stats in mt76_sta_stats available in mt76_wcid
struct. Get rid of mt7996 private copy.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: add tx_nss histogram to ethtool stats

mt76_connac2_mac_fill_txs() counts tx_nss but ethtool doesn't show
stats. Add missing histogram accordingly.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: rely on mib_stats shared definition

Get rid of private copy of mib_stats structure.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: drop return in mt7996_sta_statistics

Avoid blocking other statistics sinfo->filled when txrate is
unavailable.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: enable BSS_CHANGED_MU_GROUPS support

The Group ID Management frame is an Action frame of category VHT.
It is transmitted by the AP to assign or change the user position
of a STA for one or more group IDs.

Also, sniffer can use a given group id to monitor STA that belongs
to that group.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: enable configured beacon tx rate

The user is allowed to change beacon tx rate (HT/VHT/HE) from hostapd.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: enable BSS_CHANGED_MCAST_RATE support

Similar to BSS_CHANGED_BASIC_RATES, this enables mcast rate
configuration through fixed rate tables.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Change-Id: Ifc305e8c7de9a7df4ad5f856e2097d721a886aaa
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: enable BSS_CHANGED_BASIC_RATES support

The connac3 removes fixed rate fields to reduce txd size and introduces
global rate tables (64 entries) for rate setting. Driver needs to fill
the corresponding idx in MT_TXD6_TX_RATE while tx, and push mt76_rate
into predifined table at bootup stage so that mvif->basic_rates_idx
can immediately switch out once setting changes.

spe_idx is also needed for fixed rate frames, and will be updated by
future patches.

Note that all table entries are shared across driver and firmware
(i.e.TxBF), hence adding MT7996_BASIC_RATES_TBL to reflect mapping
status.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: enable full system reset support

Add mt7996_reset() and refactor mt7996_mac_reset_work() to support
full system recovery.

Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: remove mt7996_mcu_set_pm()

Currently using BSS_INFO_PS command will sometimes cause packet drop in
hw rx queue.
Temporarily remove this function until finding the cause.

Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: remove mt7996_mcu_beacon_check_caps()

Those capabilities have been added into ieee80211_bss_conf.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: ignore key disable commands

This helps avoid cleartext leakage of already queued or powersave buffered
packets, when a reassoc triggers the key deletion.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230330091259.61378-1-nbd@nbd.name

wifi: mt76: mt7996: add EHT capability init

Add EHT mac and phy capability init for mt7996 chipsets.

Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Co-developed-by: MeiChia Chiu <meichia.chiu@mediatek.com>
Signed-off-by: MeiChia Chiu <meichia.chiu@mediatek.com>
Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: add helpers for wtbl and interface limit

Add helpers to get the maximum wtbl size and interface num based
on hw caps.

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: add EHT rate stats for ethtool

Add support to get EHT rate stats from ethtool.
This is the preliminary patch to add EHT support for mt7996.

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: fix chainmask calculation in mt7996_set_antenna()

Fix per-band chainmask when restoring from the dev chainmask.

Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: add support to configure spatial reuse parameter set

The SPR parameter set comprises OBSS PD threshold for SRG and
non SRG and Bitmap of BSS color and partial BSSID. This adds
support to configure fields of SPR element to firmware.

User can disable firmware SR algorithms by turning sr_scene_detect off.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: enable ack signal support

This reports signal strength of ACK packets from the peer as measured
at each interface.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: enable use_cts_prot support

This adds selectable RTC/CTS enablement for each interface.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices

The driver first supports Filogic 680 PCI device, which is a Wi-Fi 7
chipset supporting concurrent tri-band operation at 6 GHz, 5 GHz, and
2.4 GHz with 4x4 antennas on each band.

Currently, mt7996 only supports tri-band HE or older mode.
EHT mode and more variants of Filogic 680 support will be introduced
in further patches.

Reviewed-by: Ryder Lee <ryder.lee@mediatek.com>
Co-developed-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Co-developed-by: Howard Hsu <howard-yh.hsu@mediatek.com>
Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com>
Co-developed-by: MeiChia Chiu <meichia.chiu@mediatek.com>
Signed-off-by: MeiChia Chiu <meichia.chiu@mediatek.com>
Co-developed-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
Co-developed-by: Money Wang <Money.Wang@mediatek.com>
Signed-off-by: Money Wang <Money.Wang@mediatek.com>
Co-developed-by: Evelyn Tsai <evelyn.tsai@mediatek.com>
Signed-off-by: Evelyn Tsai <evelyn.tsai@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>