Commit Graph
558 Commits
Author SHA1 Message Date
Felix Fietkau 33f29d2345 wifi: mt76: relicense to BSD-3-Clause-Clear
MediaTek has asked to switch from the ISC license to BSD-3-Clause-Clear,
in order to improve clarity and the legal integrity of the code.

The BSD-3-Clause license includes the "no endorsement" clause, which is
important for protecting the reputation of the original authors and
contributors by preventing unauthorized use of their names for endorsement
purposes.

This clause is absent in the BSD-2-Clause license, which is more permissive
but lacks this specific protection.

This change also cleans up the license of some Kconfig/Makefile files,
which were accidentally marked as GPL.

The GPL 2.0 remains in use on mt76x0, as well as two source files in mt7615
for which the license situation still needs to be clarified.

Signed-off-by: Felix Fietkau <[email protected]>
2025-10-13 11:11:19 +02:00
Rosen PenevandFelix Fietkau 9b770cb3da wifi: mt76: mt76_eeprom_override to int
mt76_eeprom_override has of_get_mac_address, which can return
-EPROBE_DEFER if the nvmem driver gets loaded after mt76 for some
reason.

Make sure this gets passed to probe so that nvmem mac overrides always
work.

Signed-off-by: Rosen Penev <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-09-15 09:52:25 +02:00
Felix Fietkau ddbe1f6eb2 wifi: mt76: abort scan/roc on hw restart
Avoid spurious channel changes and clean up allocated links

Signed-off-by: Felix Fietkau <[email protected]>
2025-09-12 13:51:36 +02:00
Lorenzo BianconiandFelix Fietkau 7b4b6c8445 wifi: mt76: Convert mt76_wed_rro_ind to LE
Do not use bitmask in mt76_wed_rro_ind DMA descriptor in order to not
break endianness.
This patch is based on the following series:
https://lore.kernel.org/linux-wireless/[email protected]/T/#m8b488004d69036cd3672b9eeca8005a937ec0313

Fixes: 950d0abb5cd94 ("wifi: mt76: mt7996: add wed rx support")
Signed-off-by: Lorenzo Bianconi <[email protected]>
Link: https://patch.msgid.link/301d5f2982ddb729c876fb65f9ac2443ce3f5ff1.1757414621.git.lorenzo@kernel.org
Signed-off-by: Felix Fietkau <[email protected]>
2025-09-09 15:08:35 +02:00
Rex LuandFelix Fietkau 6c902ccba8 wifi: mt76: mt7996: Add SW path for HW-RRO v3.1
Introduce HW-RRO v3.1 support to be reused when Wireless Ethernet
Dispatcher (WED) is not available. HW-RRO v3.1 is supported by
MT7992 chipset.

Signed-off-by: Rex Lu <[email protected]>
Co-developed-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-09-04 19:09:11 +02:00
Lorenzo BianconiandFelix Fietkau 0a32ae3cc2 wifi: mt76: Add mt76_dma_get_rxdmad_c_buf utility routione
Introduce mt76_dma_get_rxdmad_c_buf routine to process packets received
by HW-RRO v3.1 module.
This is a preliminary patch to introduce SW path for HW-RRO v3.1 module
available on MT7992 chipset.

Co-developed-by: Rex Lu <[email protected]>
Signed-off-by: Rex Lu <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-09-04 19:09:11 +02:00
Rex LuandFelix Fietkau d82330a9d0 wifi: mt76: mt7996: Decouple RRO logic from WED support
Decouple RRO logic from WED support in MT7996 driver in order to reuse
it when WED module is not available.

Signed-off-by: Rex Lu <[email protected]>
Co-developed-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-09-04 19:09:11 +02:00
Lorenzo BianconiandFelix Fietkau ac1bca4997 wifi: mt76: Add rx_queue_init callback
Introduce rx_queue_init DMA callback. This is a preliminary patch to
configure RRO RX queues and decouple RRO logic from WED support.

Co-developed-by: Rex Lu <[email protected]>
Signed-off-by: Rex Lu <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-09-04 19:09:11 +02:00
Rex LuandFelix Fietkau 13eb05fa4a wifi: mt76: mt7996: Introduce RRO MSDU callbacks
Introduce rx_rro_ind_process and rx_rro_add_msdu_page callbacks and the
related logic in the MT7996 driver. This is a preliminary patch to
decouple RRO logic from WED support and reuse RRO when WED module is not
available.

Signed-off-by: Rex Lu <[email protected]>
Co-developed-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-09-04 19:09:11 +02:00
Rex LuandFelix Fietkau d540538299 wifi: mt76: Differentiate between RRO data and RRO MSDU queues
This is a preliminary patch to enable WED support for MT7992 Kite
chipset supported by MT7996 driver.

Co-developed-by: Sujuan Chen <[email protected]>
Signed-off-by: Sujuan Chen <[email protected]>
Co-developed-by: Benjamin Lin <[email protected]>
Signed-off-by: Benjamin Lin <[email protected]>
Signed-off-by: Rex Lu <[email protected]>
Co-developed-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-09-04 19:09:11 +02:00
Lorenzo BianconiandFelix Fietkau 245f6ff460 wifi: mt76: Add reset_idx to reset_q mt76_queue_ops signature.
Remove __mt76_dma_queue_reset routine and use mt76_dma_queue_reset
directly instead in mt76_queue_ops struct.
This is a preliminary patch to enable WED support for MT7992 Kite
chipset supported by MT7996 driver.

Co-developed-by: Rex Lu <[email protected]>
Signed-off-by: Rex Lu <[email protected]>
Co-developed-by: Sujuan Chen <[email protected]>
Signed-off-by: Sujuan Chen <[email protected]>
Co-developed-by: Benjamin Lin <[email protected]>
Signed-off-by: Benjamin Lin <[email protected]>
Signed-off-by: Lorenzo Bianconi <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-09-04 19:09:11 +02:00
Breno LeitaoandFelix Fietkau ef2468830f wifi: mt76: un-embedd netdev from mt76_dev
Embedding net_device into structures prohibits the usage of flexible
arrays in the net_device structure. For more details, see the discussion
at [1].

Un-embed the net_devices from struct mt76_dev by converting them
into pointers, and allocating them dynamically. Use the leverage
alloc_netdev_dummy() to allocate the net_device object at
mt76_dma_init().

The free of the device occurs at mt76_dma_cleanup().

Link: https://lore.kernel.org/all/[email protected]/ [1]
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: Breno Leitao <[email protected]>
Acked-by: Kalle Valo <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
2025-09-04 19:05:35 +02:00
Lorenzo BianconiandFelix Fietkau 15fa4e33ee wifi: mt76: mt7996: Enable MLO support for client interfaces
Report MT7996 MLO STA capabilities to mac80211 stack.

Signed-off-by: Lorenzo Bianconi <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-09-01 16:45:04 +02:00
Felix Fietkau 4cd64ad128 wifi: mt76: mt7915: fix list corruption after hardware restart
Since stations are recreated from scratch, all lists that wcids are added
to must be cleared before calling ieee80211_restart_hw.
Set wcid->sta = 0 for each wcid entry in order to ensure that they are
not added again before they are ready.

Signed-off-by: Felix Fietkau <[email protected]>
2025-08-25 16:14:39 +02:00
Leon YenandFelix Fietkau ec95319fd3 wifi: mt76: mt7921s: Introduce SDIO WiFi/BT combo module card reset
Add a hardware reset method to recover from the SDIO bus error that cannot
be resolved by the current WiFi/BT subsystem reset.

Signed-off-by: Leon Yen <[email protected]>
Signed-off-by: Ming Yen Hsieh <[email protected]>
Link: https://patch.msgid.link/[email protected]
2025-07-07 18:10:01 +02:00
Felix Fietkau d70f62b8f1 wifi: mt76: fix vif link allocation
Reuse the vif deflink for link_id = 0 in order to avoid confusion with
vif->bss_conf, which also gets a link id of 0.

Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-07-07 18:03:48 +02:00
Rameshkumar SundaramandFelix Fietkau e41c778558 wifi: mac80211: get tx power per link
ML interfaces can have multiple affiliated links to it and
hence there is a need to report tx power of specified link
rather deflink.

Add changes to report tx power of requested link from mac80211,
also pass link id as an argument in get_tx_power op so that supported
drivers can use it to report link's tx power.

Co-developed-by: Aaradhana Sahu <[email protected]>
Signed-off-by: Aaradhana Sahu <[email protected]>
Signed-off-by: Rameshkumar Sundaram <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Johannes Berg <[email protected]>
2025-07-04 20:47:07 +02:00
Felix Fietkau 243e572d89 wifi: mt76: add a wrapper for wcid access with validation
Several places use rcu_dereference to get a wcid entry without validating
if the index exceeds the array boundary. Fix this by using a helper function,
which handles validation.

Signed-off-by: Felix Fietkau <[email protected]>
2025-07-04 20:46:06 +02:00
Shayne ChenandFelix Fietkau da2c23bec4 wifi: mt76: support power delta calculation for 5 TX paths
One variant of MT7992 has 5 TX paths, so extend the power delta function
to support it. Also, rename nss_delta to path_delta since the value is
based on the number of TX paths rather tha the number of spatial streams.
(path delta [0.5 dBm] = 10 * log(path number) [dBm] * 2)

Co-developed-by: StanleyYP Wang <[email protected]>
Signed-off-by: StanleyYP Wang <[email protected]>
Signed-off-by: Shayne Chen <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-05-21 14:44:30 +02:00
Ming Yen HsiehandFelix Fietkau 2247afffc7 wifi: mt76: add mt76_connac_mcu_build_rnr_scan_param routine
Introduce mt76_connac_mcu_build_rnr_scan_param routine for handling
RNR scan. This is a preliminary patch to enable RNR scan in mt7921 and
mt7925 driver.

Signed-off-by: Ming Yen Hsieh <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-05-21 14:31:27 +02:00
Lorenzo BianconiandFelix Fietkau 3082c9edbe wifi: mt76: mt7996: Add mt7996_sta_state routine
Introduce mt7996_sta_state routine in order to initialize wcid structure
in mt7996 codebase. This is a preliminary patch to enable MLO support in
MT7996 driver.

Signed-off-by: Lorenzo Bianconi <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-03-12 10:38:01 +01:00
Razvan GrigoreandFelix Fietkau f118073642 wifi: mt76: add mt76_get_power_bound helper function
This will replace mt7915_get_power_bound function from b/mt7915/mcu.h,
since we will need it also for mt7921 and mt7925

Signed-off-by: Razvan Grigore <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-03-10 13:24:28 +01:00
Ming Yen HsiehandFelix Fietkau 2823c50b1c wifi: mt76: mt7925: fix the wrong link_idx when has p2p_device
When the p2p device and MLO station concurrent, the p2p device
will occupy the wrong link_idx when the MLO secondary link is added.

Fixes: e38a82d25b08 ("wifi: mt76: connac: Extend mt76_connac_mcu_uni_add_dev for MLO")
Cc: [email protected]
Co-developed-by: Sean Wang <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Tested-by: Caleb Jorden <[email protected]>
Signed-off-by: Ming Yen Hsieh <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2025-03-10 13:07:19 +01:00
Felix Fietkau e5fef13852 mt76: only mark tx-status-failed frames as ACKed on mt76x0/2
The interrupt status polling is unreliable, which can cause status events
to get lost. On all newer chips, txs-timeout is an indication that the
packet was either never sent, or never acked.
Fixes issues with inactivity polling.

Signed-off-by: Felix Fietkau <[email protected]>
2025-02-14 11:13:33 +01:00
Felix Fietkau 4d8d6e2e77 wifi: mt76: scan: set vif offchannel link for scanning/roc
The driver needs to know what vif link to use

Signed-off-by: Felix Fietkau <[email protected]>
2025-01-04 08:11:30 +01:00
Felix Fietkau 1884f568ba wifi: mt76: do not add wcid entries to sta poll list during MCU reset
Fixes linked list management issues during restart, where sta entries
can be recreated and reinitialized while still in the poll list, triggering
kernel warnings.

Signed-off-by: Felix Fietkau <[email protected]>
2024-12-30 18:40:23 +01:00
Felix Fietkau f19cbcf834 wifi: mt76: add multi-radio remain_on_channel functions
This allows a driver using the generic channel context functions to
temporarily switch to another channel for off-channel rx/tx.

Signed-off-by: Felix Fietkau <[email protected]>
2024-10-27 08:52:59 +01:00
Felix Fietkau fc0ff17b53 wifi: mt76: add multi-radio support to scanning code
When scanning on a phy/vif combination that does not have an active link,
create a temporary link in order to ensure that we have a valid wcid.

Signed-off-by: Felix Fietkau <[email protected]>
2024-10-27 08:52:59 +01:00
Felix Fietkau 0b05795ca8 wifi: mt76: remove dev->wcid_phy_mask
Explicitly check wcid->phy_idx instead. Reduces allocated data size.

Signed-off-by: Felix Fietkau <[email protected]>
2024-10-22 10:18:59 +02:00
Felix Fietkau d026be405c wifi: mt76: add chanctx functions for multi-channel phy support
This adds an implementation for the chanctx functions, which can be used
by multi-channel capable drivers. Preparation for adding MLO support.

Signed-off-by: Felix Fietkau <[email protected]>
2024-10-22 10:18:59 +02:00
Felix Fietkau d388deab9e wifi: mt76: initialize more wcid fields mt76_wcid_init
Reduces code duplication and ensures that the phy index is always set.

Signed-off-by: Felix Fietkau <[email protected]>
2024-10-22 10:18:59 +02:00
Felix Fietkau 99df84d628 wifi: mt76: add vif link specific data structure
Preparation for splitting link data from vif data for MLO support.

Signed-off-by: Felix Fietkau <[email protected]>
2024-10-22 10:18:59 +02:00
Felix Fietkau 8cd0263f92 wifi: mt76: rename struct mt76_vif to mt76_vif_link
Preparation to use it for private bss link data instead of the full vif
on MLO capable devices.

Signed-off-by: Felix Fietkau <[email protected]>
2024-10-22 10:18:59 +02:00
Felix Fietkau dc4c2bdf7c wifi: mt76: add support for allocating a phy without hw
Preparation for supporting a single hw with multiple radios

Signed-off-by: Felix Fietkau <[email protected]>
2024-10-22 10:18:59 +02:00
Felix Fietkau 57019e663f wifi: mt76: add code for emulating hardware scanning
Preparation for supporting multiple radios on a single wiphy on devices
where firmware does not support actual hardware scanning.
This is also a prerequisite for full MLO support

Co-developed-by: Peter Chiu <[email protected]>
Signed-off-by: Peter Chiu <[email protected]>
Co-developed-by: Michael-CY Lee <[email protected]>
Signed-off-by: Michael-CY Lee <[email protected]>
Co-developed-by: Shayne Chen <[email protected]>
Signed-off-by: Shayne Chen <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2024-10-22 10:18:59 +02:00
Leon YenandFelix Fietkau dc32780c7f wifi: mt76: mt7921s: fix a potential firmware freeze during startup
The maximum command quota of the firmware may be exceeded because the
command to retrieve the quota setting has not been taken into account.

This patch considers not only the quota usage of the command retrieving
quota settings but also limits the total quota usage.

Signed-off-by: Leon Yen <[email protected]>
Signed-off-by: Ming Yen Hsieh <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2024-09-27 08:11:07 +02:00
Felix Fietkau 059342ca6a wifi: mt76: move mt76_tm_policy to from testmode.h to mt76.h
This fixes using testmode.h from user space code

Signed-off-by: Felix Fietkau <[email protected]>
2024-09-24 12:34:25 +02:00
Felix Fietkau d10ce9d65d wifi: mt76: remove mt76_calculate_default_rate()
It is only used in mt76_connac2_mac_tx_rate_val, inline it there.

Signed-off-by: Felix Fietkau <[email protected]>
2024-09-13 14:16:30 +02:00
Felix Fietkau a5e630ef45 wifi: mt76: mt7916: fix regression in .sta_state migration
- initialize and use per-sta wcid entry instead of vif wcid
- set wcid flags for 4addr/offload
- fix 'newly' argument for vif sta entry update

Signed-off-by: Felix Fietkau <[email protected]>
2024-08-21 16:51:03 +02:00
Felix Fietkau caed4843c5 wifi: mt76: fix station muar index
Signed-off-by: Felix Fietkau <[email protected]>
2024-08-19 20:05:30 +02:00
Felix Fietkau a1a65d8608 wifi: mt76: mt7915: retry mcu messages
In some cases MCU messages can get lost. Instead of failing completely,
attempt to recover by re-sending them.

Signed-off-by: Felix Fietkau <[email protected]>
2024-08-13 20:22:43 +02:00
Felix Fietkau 5af2f7c8e8 wifi: mt76: mt7915: use mac80211 .sta_state op
Allows adding stations before assoc, though they are not passed to the
firmware yet at that point.

Signed-off-by: Felix Fietkau <[email protected]>
2024-08-12 21:09:09 +02:00
Felix Fietkau ea8c3eac12 wifi: mt76: change .sta_assoc callback to .sta_event
Also report auth/disassoc events, in order to give the driver more control over
handling the station state.

Signed-off-by: Felix Fietkau <[email protected]>
2024-08-12 21:09:03 +02:00
Felix Fietkau 891031ee05 wifi: mt76: add separate tx scheduling queue for off-channel tx
Ensure that packets are not sent out to the wrong channel

Signed-off-by: Felix Fietkau <[email protected]>
2024-08-12 21:08:34 +02:00
Felix Fietkau b80c997b3f wifi: mt76: partially move channel change code to core
This allows the core code to change the channel. Code deduplication and
preparation for adding scanning code to the core.

Signed-off-by: Felix Fietkau <[email protected]>
2024-08-12 21:08:33 +02:00
Michael LoandFelix Fietkau 3a367258d9 wifi: mt76: mt792x: fix scheduler interference in drv own process
Add some time to wait for LP engine to complete its operation
before polling pmctrl register.

Signed-off-by: Michael Lo <[email protected]>
Signed-off-by: Ming Yen Hsieh <[email protected]>
Tested-by: David Ruth <[email protected]>
Acked-by: Sean Wang <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
2024-07-16 14:30:13 +02:00
Sean WangandFelix Fietkau 2304e6146c wifi: mt76: add def_wcid to struct mt76_wcid
add def_wcid to struct mt76_wcid to allow per-link wcid to retrieve the
struct ieee80211_sta structure.

Co-developed-by: Ming Yen Hsieh <[email protected]>
Signed-off-by: Ming Yen Hsieh <[email protected]>
Co-developed-by: Deren Wu <[email protected]>
Signed-off-by: Deren Wu <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Link: https://patch.msgid.link/d5188ca633666eaad7e90a8061d1a0585487e128.1720248331.git.sean.wang@kernel.org
Signed-off-by: Felix Fietkau <[email protected]>
2024-07-16 14:30:13 +02:00
Sean WangandFelix Fietkau ebd522981b wifi: mt76: mt7925: report link information in rx status
report link information in rx status

Co-developed-by: Ming Yen Hsieh <[email protected]>
Signed-off-by: Ming Yen Hsieh <[email protected]>
Co-developed-by: Deren Wu <[email protected]>
Signed-off-by: Deren Wu <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Link: https://patch.msgid.link/c7cdc17d94375a76802a5c4a825ea3e51cdb53af.1720248331.git.sean.wang@kernel.org
Signed-off-by: Felix Fietkau <[email protected]>
2024-07-16 14:30:13 +02:00
Sean WangandFelix Fietkau 94e751a0f5 wifi: mt76: mt7925: set mt7925_mcu_sta_key_tlv according to link id
configure mt7925_mcu_sta_key_tlv according to link id

We created a link id field in the common structure mt76_wcid so that
mt7925_mcu_sta_key_tlv can access per-link STA/BSS. Additionally,
.link_id will be required when reporting the link information of Rx status
to mac80211. We will submit the changes for reporting the Rx status in
a separate patch.

Co-developed-by: Ming Yen Hsieh <[email protected]>
Signed-off-by: Ming Yen Hsieh <[email protected]>
Co-developed-by: Deren Wu <[email protected]>
Signed-off-by: Deren Wu <[email protected]>
Signed-off-by: Sean Wang <[email protected]>
Link: https://patch.msgid.link/16d65aae010113f9be3c4e6e759b4226d396a1be.1720248331.git.sean.wang@kernel.org
Signed-off-by: Felix Fietkau <[email protected]>
2024-07-13 15:39:30 +02:00
Felix Fietkau 564cd93961 mt76: sync with upstream changes
Signed-off-by: Felix Fietkau <[email protected]>
2024-07-12 17:15:04 +02:00